diff options
Diffstat (limited to 'drivers/usb/net')
| -rw-r--r-- | drivers/usb/net/Kconfig | 307 | ||||
| -rw-r--r-- | drivers/usb/net/Makefile | 12 | ||||
| -rw-r--r-- | drivers/usb/net/catc.c | 960 | ||||
| -rw-r--r-- | drivers/usb/net/kaweth.c | 1271 | ||||
| -rw-r--r-- | drivers/usb/net/kawethfw.h | 557 | ||||
| -rw-r--r-- | drivers/usb/net/pegasus.c | 1408 | ||||
| -rw-r--r-- | drivers/usb/net/pegasus.h | 298 | ||||
| -rw-r--r-- | drivers/usb/net/rtl8150.c | 942 | ||||
| -rw-r--r-- | drivers/usb/net/usbnet.c | 4106 | ||||
| -rw-r--r-- | drivers/usb/net/zd1201.c | 1905 | ||||
| -rw-r--r-- | drivers/usb/net/zd1201.h | 147 |
11 files changed, 11913 insertions, 0 deletions
diff --git a/drivers/usb/net/Kconfig b/drivers/usb/net/Kconfig new file mode 100644 index 00000000000..db64c908d4a --- /dev/null +++ b/drivers/usb/net/Kconfig @@ -0,0 +1,307 @@ +# +# USB Network devices configuration +# +comment "Networking support is needed for USB Network Adapter support" + depends on USB && !NET + +menu "USB Network Adapters" + depends on USB && NET + +config USB_CATC + tristate "USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)" + depends on EXPERIMENTAL + select CRC32 + ---help--- + Say Y if you want to use one of the following 10Mbps USB Ethernet + device based on the EL1210A chip. Supported devices are: + Belkin F5U011 + Belkin F5U111 + CATC NetMate + CATC NetMate II + smartBridges smartNIC + + This driver makes the adapter appear as a normal Ethernet interface, + typically on eth0, if it is the only ethernet device, or perhaps on + eth1, if you have a PCI or ISA ethernet card installed. + + To compile this driver as a module, choose M here: the + module will be called catc. + +config USB_KAWETH + tristate "USB KLSI KL5USB101-based ethernet device support" + ---help--- + Say Y here if you want to use one of the following 10Mbps only + USB Ethernet adapters based on the KLSI KL5KUSB101B chipset: + 3Com 3C19250 + ADS USB-10BT + ATEN USB Ethernet + ASANTE USB To Ethernet Adapter + AOX Endpoints USB Ethernet + Correga K.K. + D-Link DSB-650C and DU-E10 + Entrega / Portgear E45 + I-O DATA USB-ET/T + Jaton USB Ethernet Device Adapter + Kingston Technology USB Ethernet Adapter + Linksys USB10T + Mobility USB-Ethernet Adapter + NetGear EA-101 + Peracom Enet and Enet2 + Portsmith Express Ethernet Adapter + Shark Pocket Adapter + SMC 2202USB + Sony Vaio port extender + + This driver is likely to work with most 10Mbps only USB Ethernet + adapters, including some "no brand" devices. It does NOT work on + SmartBridges smartNIC or on Belkin F5U111 devices - you should use + the CATC NetMate driver for those. If you are not sure which one + you need, select both, and the correct one should be selected for + you. + + This driver makes the adapter appear as a normal Ethernet interface, + typically on eth0, if it is the only ethernet device, or perhaps on + eth1, if you have a PCI or ISA ethernet card installed. + + To compile this driver as a module, choose M here: the + module will be called kaweth. + +config USB_PEGASUS + tristate "USB Pegasus/Pegasus-II based ethernet device support" + select MII + ---help--- + Say Y here if you know you have Pegasus or Pegasus-II based adapter. + If in doubt then look at <file:drivers/usb/net/pegasus.h> for the + complete list of supported devices. + + If your particular adapter is not in the list and you are _sure_ it + is Pegasus or Pegasus II based then send me + <petkan@users.sourceforge.net> vendor and device IDs. + + To compile this driver as a module, choose M here: the + module will be called pegasus. + +config USB_RTL8150 + tristate "USB RTL8150 based ethernet device support (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + Say Y here if you have RTL8150 based usb-ethernet adapter. + Send me <petkan@users.sourceforge.net> any comments you may have. + You can also check for updates at <http://pegasus2.sourceforge.net/>. + + To compile this driver as a module, choose M here: the + module will be called rtl8150. + +config USB_USBNET + tristate "Multi-purpose USB Networking Framework" + ---help--- + This driver supports several kinds of network links over USB, + with "minidrivers" built around a common network driver core + that supports deep queues for efficient transfers. (This gives + better performance with small packets and at high speeds). + + The USB host runs "usbnet", and the other end of the link might be: + + - Another USB host, when using USB "network" or "data transfer" + cables. These are often used to network laptops to PCs, like + "Laplink" parallel cables or some motherboards. These rely + on specialized chips from many suppliers. + + - An intelligent USB gadget, perhaps embedding a Linux system. + These include PDAs running Linux (iPaq, Yopy, Zaurus, and + others), and devices that interoperate using the standard + CDC-Ethernet specification (including many cable modems). + + - Network adapter hardware (like those for 10/100 Ethernet) which + uses this driver framework. + + The link will appear with a name like "usb0", when the link is + a two-node link, or "eth0" for most CDC-Ethernet devices. Those + two-node links are most easily managed with Ethernet Bridging + (CONFIG_BRIDGE) instead of routing. + + For more information see <http://www.linux-usb.org/usbnet/>. + + To compile this driver as a module, choose M here: the + module will be called usbnet. + +comment "USB Host-to-Host Cables" + depends on USB_USBNET + +config USB_ALI_M5632 + boolean "ALi M5632 based 'USB 2.0 Data Link' cables" + depends on USB_USBNET + default y + help + Choose this option if you're using a host-to-host cable + based on this design, which supports USB 2.0 high speed. + +config USB_AN2720 + boolean "AnchorChips 2720 based cables (Xircom PGUNET, ...)" + depends on USB_USBNET + default y + help + Choose this option if you're using a host-to-host cable + based on this design. Note that AnchorChips is now a + Cypress brand. + +config USB_BELKIN + boolean "eTEK based host-to-host cables (Advance, Belkin, ...)" + depends on USB_USBNET + default y + help + Choose this option if you're using a host-to-host cable + based on this design: two NetChip 2890 chips and an Atmel + microcontroller, with LEDs that indicate traffic. + +config USB_GENESYS + boolean "GeneSys GL620USB-A based cables" + default y + depends on USB_USBNET + help + Choose this option if you're using a host-to-host cable, + or PC2PC motherboard, with this chip. + + Note that the half-duplex "GL620USB" is not supported. + +config USB_NET1080 + boolean "NetChip 1080 based cables (Laplink, ...)" + default y + depends on USB_USBNET + help + Choose this option if you're using a host-to-host cable based + on this design: one NetChip 1080 chips and supporting logic, + supporting LEDs that indicate traffic + +config USB_PL2301 + boolean "Prolific PL-2301/2302 based cables" + default y + # handshake/init/reset problems, from original 'plusb' driver + depends on USB_USBNET && EXPERIMENTAL + help + Choose this option if you're using a host-to-host cable + with one of these chips. + +config USB_KC2190 + boolean "KT Technology KC2190 based cables (InstaNet)" + default y + depends on USB_USBNET && EXPERIMENTAL + help + Choose this option if you're using a host-to-host cable + with one of these chips. + +comment "Intelligent USB Devices/Gadgets" + depends on USB_USBNET + +config USB_ARMLINUX + boolean "Embedded ARM Linux links (iPaq, ...)" + depends on USB_USBNET + default y + help + Choose this option to support the "usb-eth" networking driver + used by most of the ARM Linux community with device controllers + such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities + in some PXA versions of the "blob" boot loader. + + Linux-based "Gumstix" PXA-25x based systems use this protocol + to talk with other Linux systems. + + Although the ROMs shipped with Sharp Zaurus products use a + different link level framing protocol, you can have them use + this simpler protocol by installing a different kernel. + +config USB_EPSON2888 + boolean "Epson 2888 based firmware (DEVELOPMENT)" + depends on USB_USBNET + default y + help + Choose this option to support the usb networking links used + by some sample firmware from Epson. + +config USB_ZAURUS + boolean "Sharp Zaurus (stock ROMs)" + depends on USB_USBNET + select CRC32 + default y + help + Choose this option to support the usb networking links used by + Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500. + + If you install an alternate ROM image, you may no longer need + to support this protocol. Only the "eth-fd" driver really needs + this non-conformant variant of CDC Ethernet protocol. + +config USB_CDCETHER + boolean "CDC Ethernet support (smart devices such as cable modems)" + depends on USB_USBNET + default y + help + This option supports devices conforming to the Communication Device + Class (CDC) Ethernet Control Model, a specification that's easy to + implement in device firmware. The CDC specifications are available + from <http://www.usb.org/>. + + CDC Ethernet is an implementation option for DOCSIS cable modems + that support USB connectivity, used for non-Microsoft USB hosts. + This driver should work with at least the following devices: + + * Ericsson PipeRider (all variants) + * Motorola (DM100 and SB4100) + * Broadcom Cable Modem (reference design) + * Toshiba PCX1100U + * ... + + This driver creates an interface named "ethX", where X depends on + what other networking devices you have in use. However, if the + IEEE 802 "local assignment" bit is set in the address, a "usbX" + name is used instead. + +comment "USB Network Adapters" + depends on USB_USBNET + +config USB_AX8817X + boolean "ASIX AX88xxx Based USB 2.0 Ethernet Devices" + depends on USB_USBNET && NET_ETHERNET + select CRC32 + select MII + default y + help + This option adds support for ASIX AX88xxx based USB 2.0 + 10/100 Ethernet devices. + + This driver should work with at least the following devices: + * Aten UC210T + * ASIX AX88172 + * Billionton Systems, USB2AR + * Buffalo LUA-U2-KTX + * Corega FEther USB2-TX + * D-Link DUB-E100 + * Hawking UF200 + * Linksys USB200M + * Netgear FA120 + * Sitecom LN-029 + * Intellinet USB 2.0 Ethernet + * ST Lab USB 2.0 Ethernet + * TrendNet TU2-ET100 + + This driver creates an interface named "ethX", where X depends on + what other networking devices you have in use. + +config USB_ZD1201 + tristate "USB ZD1201 based Wireless device support" + depends on NET_RADIO + select FW_LOADER + ---help--- + Say Y if you want to use wireless LAN adapters based on the ZyDAS + ZD1201 chip. + + This driver makes the adapter appear as a normal Ethernet interface, + typically on wlan0. + + The zd1201 device requires external firmware to be loaded. + This can be found at http://linux-lc100020.sourceforge.net/ + + To compile this driver as a module, choose M here: the + module will be called zd1201. + +endmenu diff --git a/drivers/usb/net/Makefile b/drivers/usb/net/Makefile new file mode 100644 index 00000000000..16f35219551 --- /dev/null +++ b/drivers/usb/net/Makefile @@ -0,0 +1,12 @@ +# +# Makefile for USB Network drivers +# + +obj-$(CONFIG_USB_CATC) += catc.o +obj-$(CONFIG_USB_KAWETH) += kaweth.o +obj-$(CONFIG_USB_PEGASUS) += pegasus.o +obj-$(CONFIG_USB_RTL8150) += rtl8150.o +obj-$(CONFIG_USB_USBNET) += usbnet.o +obj-$(CONFIG_USB_ZD1201) += zd1201.o + +CFLAGS_zd1201.o = -Idrivers/net/wireless/ diff --git a/drivers/usb/net/catc.c b/drivers/usb/net/catc.c new file mode 100644 index 00000000000..c8be912f24e --- /dev/null +++ b/drivers/usb/net/catc.c @@ -0,0 +1,960 @@ +/* + * Copyright (c) 2001 Vojtech Pavlik + * + * CATC EL1210A NetMate USB Ethernet driver + * + * Sponsored by SuSE + * + * Based on the work of + * Donald Becker + * + * Old chipset support added by Simon Evans <spse@secret.org.uk> 2002 + * - adds support for Belkin F5U011 + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Should you need to contact me, the author, you can do so either by + * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: + * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/spinlock.h> +#include <linux/ethtool.h> +#include <linux/crc32.h> +#include <linux/bitops.h> +#include <asm/uaccess.h> + +#undef DEBUG + +#include <linux/usb.h> + +/* + * Version information. + */ + +#define DRIVER_VERSION "v2.8" +#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>" +#define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver" +#define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet" + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +static const char driver_name[] = "catc"; + +/* + * Some defines. + */ + +#define STATS_UPDATE (HZ) /* Time between stats updates */ +#define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */ +#define PKT_SZ 1536 /* Max Ethernet packet size */ +#define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */ +#define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */ +#define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */ +#define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */ + +/* + * Control requests. + */ + +enum control_requests { + ReadMem = 0xf1, + GetMac = 0xf2, + Reset = 0xf4, + SetMac = 0xf5, + SetRxMode = 0xf5, /* F5U011 only */ + WriteROM = 0xf8, + SetReg = 0xfa, + GetReg = 0xfb, + WriteMem = 0xfc, + ReadROM = 0xfd, +}; + +/* + * Registers. + */ + +enum register_offsets { + TxBufCount = 0x20, + RxBufCount = 0x21, + OpModes = 0x22, + TxQed = 0x23, + RxQed = 0x24, + MaxBurst = 0x25, + RxUnit = 0x60, + EthStatus = 0x61, + StationAddr0 = 0x67, + EthStats = 0x69, + LEDCtrl = 0x81, +}; + +enum eth_stats { + TxSingleColl = 0x00, + TxMultiColl = 0x02, + TxExcessColl = 0x04, + RxFramErr = 0x06, +}; + +enum op_mode_bits { + Op3MemWaits = 0x03, + OpLenInclude = 0x08, + OpRxMerge = 0x10, + OpTxMerge = 0x20, + OpWin95bugfix = 0x40, + OpLoopback = 0x80, +}; + +enum rx_filter_bits { + RxEnable = 0x01, + RxPolarity = 0x02, + RxForceOK = 0x04, + RxMultiCast = 0x08, + RxPromisc = 0x10, + AltRxPromisc = 0x20, /* F5U011 uses different bit */ +}; + +enum led_values { + LEDFast = 0x01, + LEDSlow = 0x02, + LEDFlash = 0x03, + LEDPulse = 0x04, + LEDLink = 0x08, +}; + +enum link_status { + LinkNoChange = 0, + LinkGood = 1, + LinkBad = 2 +}; + +/* + * The catc struct. + */ + +#define CTRL_RUNNING 0 +#define RX_RUNNING 1 +#define TX_RUNNING 2 + +struct catc { + struct net_device *netdev; + struct usb_device *usbdev; + + struct net_device_stats stats; + unsigned long flags; + + unsigned int tx_ptr, tx_idx; + unsigned int ctrl_head, ctrl_tail; + spinlock_t tx_lock, ctrl_lock; + + u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)]; + u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)]; + u8 irq_buf[2]; + u8 ctrl_buf[64]; + struct usb_ctrlrequest ctrl_dr; + + struct timer_list timer; + u8 stats_buf[8]; + u16 stats_vals[4]; + unsigned long last_stats; + + u8 multicast[64]; + + struct ctrl_queue { + u8 dir; + u8 request; + u16 value; + u16 index; + void *buf; + int len; + void (*callback)(struct catc *catc, struct ctrl_queue *q); + } ctrl_queue[CTRL_QUEUE]; + + struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb; + + u8 is_f5u011; /* Set if device is an F5U011 */ + u8 rxmode[2]; /* Used for F5U011 */ + atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */ +}; + +/* + * Useful macros. + */ + +#define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6) +#define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0) +#define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0) +#define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1) +#define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size) +#define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size) + +#define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2) +#define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL) +#define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL) + +#define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL) +#define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb) +#define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL) + +/* + * Receive routines. + */ + +static void catc_rx_done(struct urb *urb, struct pt_regs *regs) +{ + struct catc *catc = urb->context; + u8 *pkt_start = urb->transfer_buffer; + struct sk_buff *skb; + int pkt_len, pkt_offset = 0; + + if (!catc->is_f5u011) { + clear_bit(RX_RUNNING, &catc->flags); + pkt_offset = 2; + } + + if (urb->status) { + dbg("rx_done, status %d, length %d", urb->status, urb->actual_length); + return; + } + + do { + if(!catc->is_f5u011) { + pkt_len = le16_to_cpup((__le16*)pkt_start); + if (pkt_len > urb->actual_length) { + catc->stats.rx_length_errors++; + catc->stats.rx_errors++; + break; + } + } else { + pkt_len = urb->actual_length; + } + + if (!(skb = dev_alloc_skb(pkt_len))) + return; + + skb->dev = catc->netdev; + eth_copy_and_sum(skb, pkt_start + pkt_offset, pkt_len, 0); + skb_put(skb, pkt_len); + + skb->protocol = eth_type_trans(skb, catc->netdev); + netif_rx(skb); + + catc->stats.rx_packets++; + catc->stats.rx_bytes += pkt_len; + + /* F5U011 only does one packet per RX */ + if (catc->is_f5u011) + break; + pkt_start += (((pkt_len + 1) >> 6) + 1) << 6; + + } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length); + + catc->netdev->last_rx = jiffies; + + if (catc->is_f5u011) { + if (atomic_read(&catc->recq_sz)) { + int status; + atomic_dec(&catc->recq_sz); + dbg("getting extra packet"); + urb->dev = catc->usbdev; + if ((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + dbg("submit(rx_urb) status %d", status); + } + } else { + clear_bit(RX_RUNNING, &catc->flags); + } + } +} + +static void catc_irq_done(struct urb *urb, struct pt_regs *regs) +{ + struct catc *catc = urb->context; + u8 *data = urb->transfer_buffer; + int status; + unsigned int hasdata = 0, linksts = LinkNoChange; + + if (!catc->is_f5u011) { + hasdata = data[1] & 0x80; + if (data[1] & 0x40) + linksts = LinkGood; + else if (data[1] & 0x20) + linksts = LinkBad; + } else { + hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff); + if (data[0] == 0x90) + linksts = LinkGood; + else if (data[0] == 0xA0) + linksts = LinkBad; + } + + switch (urb->status) { + case 0: /* success */ + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + /* -EPIPE: should clear the halt */ + default: /* error */ + dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], data[1]); + goto resubmit; + } + + if (linksts == LinkGood) { + netif_carrier_on(catc->netdev); + dbg("link ok"); + } + + if (linksts == LinkBad) { + netif_carrier_off(catc->netdev); + dbg("link bad"); + } + + if (hasdata) { + if (test_and_set_bit(RX_RUNNING, &catc->flags)) { + if (catc->is_f5u011) + atomic_inc(&catc->recq_sz); + } else { + catc->rx_urb->dev = catc->usbdev; + if ((status = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { + err("submit(rx_urb) status %d", status); + } + } + } +resubmit: + status = usb_submit_urb (urb, SLAB_ATOMIC); + if (status) + err ("can't resubmit intr, %s-%s, status %d", + catc->usbdev->bus->bus_name, + catc->usbdev->devpath, status); +} + +/* + * Transmit routines. + */ + +static void catc_tx_run(struct catc *catc) +{ + int status; + + if (catc->is_f5u011) + catc->tx_ptr = (catc->tx_ptr + 63) & ~63; + + catc->tx_urb->transfer_buffer_length = catc->tx_ptr; + catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; + catc->tx_urb->dev = catc->usbdev; + + if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) + err("submit(tx_urb), status %d", status); + + catc->tx_idx = !catc->tx_idx; + catc->tx_ptr = 0; + + catc->netdev->trans_start = jiffies; +} + +static void catc_tx_done(struct urb *urb, struct pt_regs *regs) +{ + struct catc *catc = urb->context; + unsigned long flags; + + if (urb->status == -ECONNRESET) { + dbg("Tx Reset."); + urb->transfer_flags &= ~URB_ASYNC_UNLINK; + urb->status = 0; + catc->netdev->trans_start = jiffies; + catc->stats.tx_errors++; + clear_bit(TX_RUNNING, &catc->flags); + netif_wake_queue(catc->netdev); + return; + } + + if (urb->status) { + dbg("tx_done, status %d, length %d", urb->status, urb->actual_length); + return; + } + + spin_lock_irqsave(&catc->tx_lock, flags); + + if (catc->tx_ptr) + catc_tx_run(catc); + else + clear_bit(TX_RUNNING, &catc->flags); + + netif_wake_queue(catc->netdev); + + spin_unlock_irqrestore(&catc->tx_lock, flags); +} + +static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + unsigned long flags; + char *tx_buf; + + spin_lock_irqsave(&catc->tx_lock, flags); + + catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6; + tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr; + *((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len); + memcpy(tx_buf + 2, skb->data, skb->len); + catc->tx_ptr += skb->len + 2; + + if (!test_and_set_bit(TX_RUNNING, &catc->flags)) + catc_tx_run(catc); + + if ((catc->is_f5u011 && catc->tx_ptr) + || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) + netif_stop_queue(netdev); + + spin_unlock_irqrestore(&catc->tx_lock, flags); + + catc->stats.tx_bytes += skb->len; + catc->stats.tx_packets++; + + dev_kfree_skb(skb); + + return 0; +} + +static void catc_tx_timeout(struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + + warn("Transmit timed out."); + catc->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; + usb_unlink_urb(catc->tx_urb); +} + +/* + * Control messages. + */ + +static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) +{ + int retval = usb_control_msg(catc->usbdev, + dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), + request, 0x40 | dir, value, index, buf, len, 1000); + return retval < 0 ? retval : 0; +} + +static void catc_ctrl_run(struct catc *catc) +{ + struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; + struct usb_device *usbdev = catc->usbdev; + struct urb *urb = catc->ctrl_urb; + struct usb_ctrlrequest *dr = &catc->ctrl_dr; + int status; + + dr->bRequest = q->request; + dr->bRequestType = 0x40 | q->dir; + dr->wValue = cpu_to_le16(q->value); + dr->wIndex = cpu_to_le16(q->index); + dr->wLength = cpu_to_le16(q->len); + + urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); + urb->transfer_buffer_length = q->len; + urb->transfer_buffer = catc->ctrl_buf; + urb->setup_packet = (void *) dr; + urb->dev = usbdev; + + if (!q->dir && q->buf && q->len) + memcpy(catc->ctrl_buf, q->buf, q->len); + + if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL))) + err("submit(ctrl_urb) status %d", status); +} + +static void catc_ctrl_done(struct urb *urb, struct pt_regs *regs) +{ + struct catc *catc = urb->context; + struct ctrl_queue *q; + unsigned long flags; + + if (urb->status) + dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length); + + spin_lock_irqsave(&catc->ctrl_lock, flags); + + q = catc->ctrl_queue + catc->ctrl_tail; + + if (q->dir) { + if (q->buf && q->len) + memcpy(q->buf, catc->ctrl_buf, q->len); + else + q->buf = catc->ctrl_buf; + } + + if (q->callback) + q->callback(catc, q); + + catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); + + if (catc->ctrl_head != catc->ctrl_tail) + catc_ctrl_run(catc); + else + clear_bit(CTRL_RUNNING, &catc->flags); + + spin_unlock_irqrestore(&catc->ctrl_lock, flags); +} + +static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, + u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) +{ + struct ctrl_queue *q; + int retval = 0; + unsigned long flags; + + spin_lock_irqsave(&catc->ctrl_lock, flags); + + q = catc->ctrl_queue + catc->ctrl_head; + + q->dir = dir; + q->request = request; + q->value = value; + q->index = index; + q->buf = buf; + q->len = len; + q->callback = callback; + + catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); + + if (catc->ctrl_head == catc->ctrl_tail) { + err("ctrl queue full"); + catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); + retval = -1; + } + + if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) + catc_ctrl_run(catc); + + spin_unlock_irqrestore(&catc->ctrl_lock, flags); + + return retval; +} + +/* + * Statistics. + */ + +static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) +{ + int index = q->index - EthStats; + u16 data, last; + + catc->stats_buf[index] = *((char *)q->buf); + + if (index & 1) + return; + + data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; + last = catc->stats_vals[index >> 1]; + + switch (index) { + case TxSingleColl: + case TxMultiColl: + catc->stats.collisions += data - last; + break; + case TxExcessColl: + catc->stats.tx_aborted_errors += data - last; + catc->stats.tx_errors += data - last; + break; + case RxFramErr: + catc->stats.rx_frame_errors += data - last; + catc->stats.rx_errors += data - last; + break; + } + + catc->stats_vals[index >> 1] = data; +} + +static void catc_stats_timer(unsigned long data) +{ + struct catc *catc = (void *) data; + int i; + + for (i = 0; i < 8; i++) + catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); + + mod_timer(&catc->timer, jiffies + STATS_UPDATE); +} + +static struct net_device_stats *catc_get_stats(struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + return &catc->stats; +} + +/* + * Receive modes. Broadcast, Multicast, Promisc. + */ + +static void catc_multicast(unsigned char *addr, u8 *multicast) +{ + u32 crc; + + crc = ether_crc_le(6, addr); + multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); +} + +static void catc_set_multicast_list(struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + struct dev_mc_list *mc; + u8 broadcast[6]; + u8 rx = RxEnable | RxPolarity | RxMultiCast; + int i; + + memset(broadcast, 0xff, 6); + memset(catc->multicast, 0, 64); + + catc_multicast(broadcast, catc->multicast); + catc_multicast(netdev->dev_addr, catc->multicast); + + if (netdev->flags & IFF_PROMISC) { + memset(catc->multicast, 0xff, 64); + rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; + } + + if (netdev->flags & IFF_ALLMULTI) { + memset(catc->multicast, 0xff, 64); + } else { + for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) { + u32 crc = ether_crc_le(6, mc->dmi_addr); + if (!catc->is_f5u011) { + catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); + } else { + catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); + } + } + } + if (!catc->is_f5u011) { + catc_set_reg_async(catc, RxUnit, rx); + catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); + } else { + f5u011_mchash_async(catc, catc->multicast); + if (catc->rxmode[0] != rx) { + catc->rxmode[0] = rx; + dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); + f5u011_rxmode_async(catc, catc->rxmode); + } + } +} + +static void catc_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct catc *catc = netdev_priv(dev); + strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); + strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); + usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); +} + +static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct catc *catc = netdev_priv(dev); + if (!catc->is_f5u011) + return -EOPNOTSUPP; + + cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; + cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; + cmd->speed = SPEED_10; + cmd->duplex = DUPLEX_HALF; + cmd->port = PORT_TP; + cmd->phy_address = 0; + cmd->transceiver = XCVR_INTERNAL; + cmd->autoneg = AUTONEG_DISABLE; + cmd->maxtxpkt = 1; + cmd->maxrxpkt = 1; + return 0; +} + +static struct ethtool_ops ops = { + .get_drvinfo = catc_get_drvinfo, + .get_settings = catc_get_settings, + .get_link = ethtool_op_get_link +}; + +/* + * Open, close. + */ + +static int catc_open(struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + int status; + + catc->irq_urb->dev = catc->usbdev; + if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { + err("submit(irq_urb) status %d", status); + return -1; + } + + netif_start_queue(netdev); + + if (!catc->is_f5u011) + mod_timer(&catc->timer, jiffies + STATS_UPDATE); + + return 0; +} + +static int catc_stop(struct net_device *netdev) +{ + struct catc *catc = netdev_priv(netdev); + + netif_stop_queue(netdev); + + if (!catc->is_f5u011) + del_timer_sync(&catc->timer); + + usb_kill_urb(catc->rx_urb); + usb_kill_urb(catc->tx_urb); + usb_kill_urb(catc->irq_urb); + usb_kill_urb(catc->ctrl_urb); + + return 0; +} + +/* + * USB probe, disconnect. + */ + +static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *usbdev = interface_to_usbdev(intf); + struct net_device *netdev; + struct catc *catc; + u8 broadcast[6]; + int i, pktsz; + + if (usb_set_interface(usbdev, + intf->altsetting->desc.bInterfaceNumber, 1)) { + err("Can't set altsetting 1."); + return -EIO; + } + + netdev = alloc_etherdev(sizeof(struct catc)); + if (!netdev) + return -ENOMEM; + + catc = netdev_priv(netdev); + + netdev->open = catc_open; + netdev->hard_start_xmit = catc_hard_start_xmit; + netdev->stop = catc_stop; + netdev->get_stats = catc_get_stats; + netdev->tx_timeout = catc_tx_timeout; + netdev->watchdog_timeo = TX_TIMEOUT; + netdev->set_multicast_list = catc_set_multicast_list; + SET_ETHTOOL_OPS(netdev, &ops); + + catc->usbdev = usbdev; + catc->netdev = netdev; + + spin_lock_init(&catc->tx_lock); + spin_lock_init(&catc->ctrl_lock); + + init_timer(&catc->timer); + catc->timer.data = (long) catc; + catc->timer.function = catc_stats_timer; + + catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); + catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); + if ((!catc->ctrl_urb) || (!catc->tx_urb) || + (!catc->rx_urb) || (!catc->irq_urb)) { + err("No free urbs available."); + if (catc->ctrl_urb) + usb_free_urb(catc->ctrl_urb); + if (catc->tx_urb) + usb_free_urb(catc->tx_urb); + if (catc->rx_urb) + usb_free_urb(catc->rx_urb); + if (catc->irq_urb) + usb_free_urb(catc->irq_urb); + free_netdev(netdev); + return -ENOMEM; + } + + /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ + if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && + le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && + le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { + dbg("Testing for f5u011"); + catc->is_f5u011 = 1; + atomic_set(&catc->recq_sz, 0); + pktsz = RX_PKT_SZ; + } else { + pktsz = RX_MAX_BURST * (PKT_SZ + 2); + } + + usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), + NULL, NULL, 0, catc_ctrl_done, catc); + + usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), + NULL, 0, catc_tx_done, catc); + + usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), + catc->rx_buf, pktsz, catc_rx_done, catc); + + usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), + catc->irq_buf, 2, catc_irq_done, catc, 1); + + if (!catc->is_f5u011) { + dbg("Checking memory size\n"); + + i = 0x12345678; + catc_write_mem(catc, 0x7a80, &i, 4); + i = 0x87654321; + catc_write_mem(catc, 0xfa80, &i, 4); + catc_read_mem(catc, 0x7a80, &i, 4); + + switch (i) { + case 0x12345678: + catc_set_reg(catc, TxBufCount, 8); + catc_set_reg(catc, RxBufCount, 32); + dbg("64k Memory\n"); + break; + default: + warn("Couldn't detect memory size, assuming 32k"); + case 0x87654321: + catc_set_reg(catc, TxBufCount, 4); + catc_set_reg(catc, RxBufCount, 16); + dbg("32k Memory\n"); + break; + } + + dbg("Getting MAC from SEEROM."); + + catc_get_mac(catc, netdev->dev_addr); + + dbg("Setting MAC into registers."); + + for (i = 0; i < 6; i++) + catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); + + dbg("Filling the multicast list."); + + memset(broadcast, 0xff, 6); + catc_multicast(broadcast, catc->multicast); + catc_multicast(netdev->dev_addr, catc->multicast); + catc_write_mem(catc, 0xfa80, catc->multicast, 64); + + dbg("Clearing error counters."); + + for (i = 0; i < 8; i++) + catc_set_reg(catc, EthStats + i, 0); + catc->last_stats = jiffies; + + dbg("Enabling."); + + catc_set_reg(catc, MaxBurst, RX_MAX_BURST); + catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); + catc_set_reg(catc, LEDCtrl, LEDLink); + catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); + } else { + dbg("Performing reset\n"); + catc_reset(catc); + catc_get_mac(catc, netdev->dev_addr); + + dbg("Setting RX Mode"); + catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; + catc->rxmode[1] = 0; + f5u011_rxmode(catc, catc->rxmode); + } + dbg("Init done."); + printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ", + netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", + usbdev->bus->bus_name, usbdev->devpath); + for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]); + printk("%2.2x.\n", netdev->dev_addr[i]); + usb_set_intfdata(intf, catc); + + SET_NETDEV_DEV(netdev, &intf->dev); + if (register_netdev(netdev) != 0) { + usb_set_intfdata(intf, NULL); + usb_free_urb(catc->ctrl_urb); + usb_free_urb(catc->tx_urb); + usb_free_urb(catc->rx_urb); + usb_free_urb(catc->irq_urb); + free_netdev(netdev); + return -EIO; + } + return 0; +} + +static void catc_disconnect(struct usb_interface *intf) +{ + struct catc *catc = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + if (catc) { + unregister_netdev(catc->netdev); + usb_free_urb(catc->ctrl_urb); + usb_free_urb(catc->tx_urb); + usb_free_urb(catc->rx_urb); + usb_free_urb(catc->irq_urb); + free_netdev(catc->netdev); + } +} + +/* + * Module functions and tables. + */ + +static struct usb_device_id catc_id_table [] = { + { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ + { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ + { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ + { } +}; + +MODULE_DEVICE_TABLE(usb, catc_id_table); + +static struct usb_driver catc_driver = { + .owner = THIS_MODULE, + .name = driver_name, + .probe = catc_probe, + .disconnect = catc_disconnect, + .id_table = catc_id_table, +}; + +static int __init catc_init(void) +{ + int result = usb_register(&catc_driver); + if (result == 0) + info(DRIVER_VERSION " " DRIVER_DESC); + return result; +} + +static void __exit catc_exit(void) +{ + usb_deregister(&catc_driver); +} + +module_init(catc_init); +module_exit(catc_exit); diff --git a/drivers/usb/net/kaweth.c b/drivers/usb/net/kaweth.c new file mode 100644 index 00000000000..a9a7cf4a38e --- /dev/null +++ b/drivers/usb/net/kaweth.c @@ -0,0 +1,1271 @@ +/**************************************************************** + * + * kaweth.c - driver for KL5KUSB101 based USB->Ethernet + * + * (c) 2000 Interlan Communications + * (c) 2000 Stephane Alnet + * (C) 2001 Brad Hards + * (C) 2002 Oliver Neukum + * + * Original author: The Zapman <zapman@interlan.net> + * Inspired by, and much credit goes to Michael Rothwell + * <rothwell@interlan.net> for the test equipment, help, and patience + * Based off of (and with thanks to) Petko Manolov's pegaus.c driver. + * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki + * for providing the firmware and driver resources. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + ****************************************************************/ + +/* TODO: + * Fix in_interrupt() problem + * Develop test procedures for USB net interfaces + * Run test procedures + * Fix bugs from previous two steps + * Snoop other OSs for any tricks we're not doing + * SMP locking + * Reduce arbitrary timeouts + * Smart multicast support + * Temporary MAC change support + * Tunable SOFs parameter - ioctl()? + * Ethernet stats collection + * Code formatting improvements + */ + +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/usb.h> +#include <linux/types.h> +#include <linux/ethtool.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/wait.h> +#include <asm/uaccess.h> +#include <asm/semaphore.h> +#include <asm/byteorder.h> + +#undef DEBUG + +#ifdef DEBUG +#define kaweth_dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" ,##arg) +#else +#define kaweth_dbg(format, arg...) do {} while (0) +#endif +#define kaweth_err(format, arg...) printk(KERN_ERR __FILE__ ": " format "\n" ,##arg) +#define kaweth_info(format, arg...) printk(KERN_INFO __FILE__ ": " format "\n" , ##arg) +#define kaweth_warn(format, arg...) printk(KERN_WARNING __FILE__ ": " format "\n" , ##arg) + + +#include "kawethfw.h" + +#define KAWETH_MTU 1514 +#define KAWETH_BUF_SIZE 1664 +#define KAWETH_TX_TIMEOUT (5 * HZ) +#define KAWETH_SCRATCH_SIZE 32 +#define KAWETH_FIRMWARE_BUF_SIZE 4096 +#define KAWETH_CONTROL_TIMEOUT (30 * HZ) + +#define KAWETH_STATUS_BROKEN 0x0000001 +#define KAWETH_STATUS_CLOSING 0x0000002 + +#define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 +#define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 +#define KAWETH_PACKET_FILTER_DIRECTED 0x04 +#define KAWETH_PACKET_FILTER_BROADCAST 0x08 +#define KAWETH_PACKET_FILTER_MULTICAST 0x10 + +/* Table 7 */ +#define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 +#define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 +#define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 +#define KAWETH_COMMAND_STATISTICS 0x03 +#define KAWETH_COMMAND_SET_TEMP_MAC 0x06 +#define KAWETH_COMMAND_GET_TEMP_MAC 0x07 +#define KAWETH_COMMAND_SET_URB_SIZE 0x08 +#define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 +#define KAWETH_COMMAND_SCAN 0xFF + +#define KAWETH_SOFS_TO_WAIT 0x05 + +#define INTBUFFERSIZE 4 + +#define STATE_OFFSET 0 +#define STATE_MASK 0x40 +#define STATE_SHIFT 5 + + +MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>"); +MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); +MODULE_LICENSE("GPL"); + +static const char driver_name[] = "kaweth"; + +static int kaweth_probe( + struct usb_interface *intf, + const struct usb_device_id *id /* from id_table */ + ); +static void kaweth_disconnect(struct usb_interface *intf); +static int kaweth_internal_control_msg(struct usb_device *usb_dev, + unsigned int pipe, + struct usb_ctrlrequest *cmd, void *data, + int len, int timeout); + +/**************************************************************** + * usb_device_id + ****************************************************************/ +static struct usb_device_id usb_klsi_table[] = { + { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ + { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ + { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ + { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ + { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ + { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ + { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ + { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ + { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ + { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ + { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ + { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ + { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ + { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ + { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ + { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ + { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ + { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ + { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ + { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ + { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ + { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ + { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ + { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ + { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ + { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ + { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ + { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ + { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ + { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ + { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ + { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ + { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ + {} /* Null terminator */ +}; + +MODULE_DEVICE_TABLE (usb, usb_klsi_table); + +/**************************************************************** + * kaweth_driver + ****************************************************************/ +static struct usb_driver kaweth_driver = { + .owner = THIS_MODULE, + .name = driver_name, + .probe = kaweth_probe, + .disconnect = kaweth_disconnect, + .id_table = usb_klsi_table, +}; + +typedef __u8 eth_addr_t[6]; + +/**************************************************************** + * usb_eth_dev + ****************************************************************/ +struct usb_eth_dev { + char *name; + __u16 vendor; + __u16 device; + void *pdata; +}; + +/**************************************************************** + * kaweth_ethernet_configuration + * Refer Table 8 + ****************************************************************/ +struct kaweth_ethernet_configuration +{ + __u8 size; + __u8 reserved1; + __u8 reserved2; + eth_addr_t hw_addr; + __u32 statistics_mask; + __le16 segment_size; + __u16 max_multicast_filters; + __u8 reserved3; +} __attribute__ ((packed)); + +/**************************************************************** + * kaweth_device + ****************************************************************/ +struct kaweth_device +{ + spinlock_t device_lock; + + __u32 status; + int end; + int removed; + int suspend_lowmem_rx; + int suspend_lowmem_ctrl; + int linkstate; + struct work_struct lowmem_work; + + struct usb_device *dev; + struct net_device *net; + wait_queue_head_t term_wait; + + struct urb *rx_urb; + struct urb *tx_urb; + struct urb *irq_urb; + + dma_addr_t intbufferhandle; + __u8 *intbuffer; + dma_addr_t rxbufferhandle; + __u8 *rx_buf; + + + struct sk_buff *tx_skb; + + __u8 *firmware_buf; + __u8 scratch[KAWETH_SCRATCH_SIZE]; + __u16 packet_filter_bitmap; + + struct kaweth_ethernet_configuration configuration; + + struct net_device_stats stats; +}; + + +/**************************************************************** + * kaweth_control + ****************************************************************/ +static int kaweth_control(struct kaweth_device *kaweth, + unsigned int pipe, + __u8 request, + __u8 requesttype, + __u16 value, + __u16 index, + void *data, + __u16 size, + int timeout) +{ + struct usb_ctrlrequest *dr; + + kaweth_dbg("kaweth_control()"); + + if(in_interrupt()) { + kaweth_dbg("in_interrupt()"); + return -EBUSY; + } + + dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); + + if (!dr) { + kaweth_dbg("kmalloc() failed"); + return -ENOMEM; + } + + dr->bRequestType= requesttype; + dr->bRequest = request; + dr->wValue = cpu_to_le16p(&value); + dr->wIndex = cpu_to_le16p(&index); + dr->wLength = cpu_to_le16p(&size); + + return kaweth_internal_control_msg(kaweth->dev, + pipe, + dr, + data, + size, + timeout); +} + +/**************************************************************** + * kaweth_read_configuration + ****************************************************************/ +static int kaweth_read_configuration(struct kaweth_device *kaweth) +{ + int retval; + + kaweth_dbg("Reading kaweth configuration"); + + retval = kaweth_control(kaweth, + usb_rcvctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_GET_ETHERNET_DESC, + USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, + 0, + 0, + (void *)&kaweth->configuration, + sizeof(kaweth->configuration), + KAWETH_CONTROL_TIMEOUT); + + return retval; +} + +/**************************************************************** + * kaweth_set_urb_size + ****************************************************************/ +static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) +{ + int retval; + + kaweth_dbg("Setting URB size to %d", (unsigned)urb_size); + + retval = kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SET_URB_SIZE, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + urb_size, + 0, + (void *)&kaweth->scratch, + 0, + KAWETH_CONTROL_TIMEOUT); + + return retval; +} + +/**************************************************************** + * kaweth_set_sofs_wait + ****************************************************************/ +static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) +{ + int retval; + + kaweth_dbg("Set SOFS wait to %d", (unsigned)sofs_wait); + + retval = kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SET_SOFS_WAIT, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + sofs_wait, + 0, + (void *)&kaweth->scratch, + 0, + KAWETH_CONTROL_TIMEOUT); + + return retval; +} + +/**************************************************************** + * kaweth_set_receive_filter + ****************************************************************/ +static int kaweth_set_receive_filter(struct kaweth_device *kaweth, + __u16 receive_filter) +{ + int retval; + + kaweth_dbg("Set receive filter to %d", (unsigned)receive_filter); + + retval = kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SET_PACKET_FILTER, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + receive_filter, + 0, + (void *)&kaweth->scratch, + 0, + KAWETH_CONTROL_TIMEOUT); + + return retval; +} + +/**************************************************************** + * kaweth_download_firmware + ****************************************************************/ +static int kaweth_download_firmware(struct kaweth_device *kaweth, + __u8 *data, + __u16 data_len, + __u8 interrupt, + __u8 type) +{ + if(data_len > KAWETH_FIRMWARE_BUF_SIZE) { + kaweth_err("Firmware too big: %d", data_len); + return -ENOSPC; + } + + memcpy(kaweth->firmware_buf, data, data_len); + + kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; + kaweth->firmware_buf[3] = data_len >> 8; + kaweth->firmware_buf[4] = type; + kaweth->firmware_buf[5] = interrupt; + + kaweth_dbg("High: %i, Low:%i", kaweth->firmware_buf[3], + kaweth->firmware_buf[2]); + + kaweth_dbg("Downloading firmware at %p to kaweth device at %p", + data, + kaweth); + kaweth_dbg("Firmware length: %d", data_len); + + return kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SCAN, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0, + 0, + (void *)kaweth->firmware_buf, + data_len, + KAWETH_CONTROL_TIMEOUT); +} + +/**************************************************************** + * kaweth_trigger_firmware + ****************************************************************/ +static int kaweth_trigger_firmware(struct kaweth_device *kaweth, + __u8 interrupt) +{ + kaweth->firmware_buf[0] = 0xB6; + kaweth->firmware_buf[1] = 0xC3; + kaweth->firmware_buf[2] = 0x01; + kaweth->firmware_buf[3] = 0x00; + kaweth->firmware_buf[4] = 0x06; + kaweth->firmware_buf[5] = interrupt; + kaweth->firmware_buf[6] = 0x00; + kaweth->firmware_buf[7] = 0x00; + + kaweth_dbg("Triggering firmware"); + + return kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SCAN, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0, + 0, + (void *)kaweth->firmware_buf, + 8, + KAWETH_CONTROL_TIMEOUT); +} + +/**************************************************************** + * kaweth_reset + ****************************************************************/ +static int kaweth_reset(struct kaweth_device *kaweth) +{ + int result; + + kaweth_dbg("kaweth_reset(%p)", kaweth); + result = kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + USB_REQ_SET_CONFIGURATION, + 0, + kaweth->dev->config[0].desc.bConfigurationValue, + 0, + NULL, + 0, + KAWETH_CONTROL_TIMEOUT); + + udelay(10000); + + kaweth_dbg("kaweth_reset() returns %d.",result); + + return result; +} + +static void kaweth_usb_receive(struct urb *, struct pt_regs *regs); +static int kaweth_resubmit_rx_urb(struct kaweth_device *, int); + +/**************************************************************** + int_callback +*****************************************************************/ + +static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, int mf) +{ + int status; + + status = usb_submit_urb (kaweth->irq_urb, mf); + if (unlikely(status == -ENOMEM)) { + kaweth->suspend_lowmem_ctrl = 1; + schedule_delayed_work(&kaweth->lowmem_work, HZ/4); + } else { + kaweth->suspend_lowmem_ctrl = 0; + } + + if (status) + err ("can't resubmit intr, %s-%s, status %d", + kaweth->dev->bus->bus_name, + kaweth->dev->devpath, status); +} + +static void int_callback(struct urb *u, struct pt_regs *regs) +{ + struct kaweth_device *kaweth = u->context; + int act_state; + + switch (u->status) { + case 0: /* success */ + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + /* -EPIPE: should clear the halt */ + default: /* error */ + goto resubmit; + } + + /* we check the link state to report changes */ + if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { + if (!act_state) + netif_carrier_on(kaweth->net); + else + netif_carrier_off(kaweth->net); + + kaweth->linkstate = act_state; + } +resubmit: + kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); +} + +static void kaweth_resubmit_tl(void *d) +{ + struct kaweth_device *kaweth = (struct kaweth_device *)d; + + if (kaweth->status | KAWETH_STATUS_CLOSING) + return; + + if (kaweth->suspend_lowmem_rx) + kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); + + if (kaweth->suspend_lowmem_ctrl) + kaweth_resubmit_int_urb(kaweth, GFP_NOIO); +} + + +/**************************************************************** + * kaweth_resubmit_rx_urb + ****************************************************************/ +static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, + int mem_flags) +{ + int result; + + usb_fill_bulk_urb(kaweth->rx_urb, + kaweth->dev, + usb_rcvbulkpipe(kaweth->dev, 1), + kaweth->rx_buf, + KAWETH_BUF_SIZE, + kaweth_usb_receive, + kaweth); + kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; + + if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { + if (result == -ENOMEM) { + kaweth->suspend_lowmem_rx = 1; + schedule_delayed_work(&kaweth->lowmem_work, HZ/4); + } + kaweth_err("resubmitting rx_urb %d failed", result); + } else { + kaweth->suspend_lowmem_rx = 0; + } + + return result; +} + +static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); + +/**************************************************************** + * kaweth_usb_receive + ****************************************************************/ +static void kaweth_usb_receive(struct urb *urb, struct pt_regs *regs) +{ + struct kaweth_device *kaweth = urb->context; + struct net_device *net = kaweth->net; + + int count = urb->actual_length; + int count2 = urb->transfer_buffer_length; + + __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); + + struct sk_buff *skb; + + if(unlikely(urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) + /* we are killed - set a flag and wake the disconnect handler */ + { + kaweth->end = 1; + wake_up(&kaweth->term_wait); + return; + } + + if (kaweth->status & KAWETH_STATUS_CLOSING) + return; + + if(urb->status && urb->status != -EREMOTEIO && count != 1) { + kaweth_err("%s RX status: %d count: %d packet_len: %d", + net->name, + urb->status, + count, + (int)pkt_len); + kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); + return; + } + + if(kaweth->net && (count > 2)) { + if(pkt_len > (count - 2)) { + kaweth_err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); + kaweth_err("Packet len & 2047: %x", pkt_len & 2047); + kaweth_err("Count 2: %x", count2); + kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); + return; + } + + if(!(skb = dev_alloc_skb(pkt_len+2))) { + kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); + return; + } + + skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ + + skb->dev = net; + + eth_copy_and_sum(skb, kaweth->rx_buf + 2, pkt_len, 0); + + skb_put(skb, pkt_len); + + skb->protocol = eth_type_trans(skb, net); + + netif_rx(skb); + + kaweth->stats.rx_packets++; + kaweth->stats.rx_bytes += pkt_len; + } + + kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); +} + +/**************************************************************** + * kaweth_open + ****************************************************************/ +static int kaweth_open(struct net_device *net) +{ + struct kaweth_device *kaweth = netdev_priv(net); + int res; + + kaweth_dbg("Opening network device."); + + res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); + if (res) + return -EIO; + + usb_fill_int_urb( + kaweth->irq_urb, + kaweth->dev, + usb_rcvintpipe(kaweth->dev, 3), + kaweth->intbuffer, + INTBUFFERSIZE, + int_callback, + kaweth, + 250); /* overriding the descriptor */ + kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; + kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); + if (res) { + usb_kill_urb(kaweth->rx_urb); + return -EIO; + } + + netif_start_queue(net); + + kaweth_async_set_rx_mode(kaweth); + return 0; +} + +/**************************************************************** + * kaweth_close + ****************************************************************/ +static int kaweth_close(struct net_device *net) +{ + struct kaweth_device *kaweth = netdev_priv(net); + + netif_stop_queue(net); + + kaweth->status |= KAWETH_STATUS_CLOSING; + + usb_kill_urb(kaweth->irq_urb); + usb_kill_urb(kaweth->rx_urb); + + flush_scheduled_work(); + + /* a scheduled work may have resubmitted, + we hit them again */ + usb_kill_urb(kaweth->irq_urb); + usb_kill_urb(kaweth->rx_urb); + + kaweth->status &= ~KAWETH_STATUS_CLOSING; + + return 0; +} + +static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + + strlcpy(info->driver, driver_name, sizeof(info->driver)); +} + +static struct ethtool_ops ops = { + .get_drvinfo = kaweth_get_drvinfo +}; + +/**************************************************************** + * kaweth_usb_transmit_complete + ****************************************************************/ +static void kaweth_usb_transmit_complete(struct urb *urb, struct pt_regs *regs) +{ + struct kaweth_device *kaweth = urb->context; + struct sk_buff *skb = kaweth->tx_skb; + + if (unlikely(urb->status != 0)) + if (urb->status != -ENOENT) + kaweth_dbg("%s: TX status %d.", kaweth->net->name, urb->status); + + netif_wake_queue(kaweth->net); + dev_kfree_skb_irq(skb); +} + +/**************************************************************** + * kaweth_start_xmit + ****************************************************************/ +static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) +{ + struct kaweth_device *kaweth = netdev_priv(net); + __le16 *private_header; + + int res; + + spin_lock(&kaweth->device_lock); + + if (kaweth->removed) { + /* our device is undergoing disconnection - we bail out */ + spin_unlock(&kaweth->device_lock); + dev_kfree_skb_irq(skb); + return 0; + } + + kaweth_async_set_rx_mode(kaweth); + netif_stop_queue(net); + + /* We now decide whether we can put our special header into the sk_buff */ + if (skb_cloned(skb) || skb_headroom(skb) < 2) { + /* no such luck - we make our own */ + struct sk_buff *copied_skb; + copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); + dev_kfree_skb_irq(skb); + skb = copied_skb; + if (!copied_skb) { + kaweth->stats.tx_errors++; + netif_start_queue(net); + spin_unlock(&kaweth->device_lock); + return 0; + } + } + + private_header = (__le16 *)__skb_push(skb, 2); + *private_header = cpu_to_le16(skb->len-2); + kaweth->tx_skb = skb; + + usb_fill_bulk_urb(kaweth->tx_urb, + kaweth->dev, + usb_sndbulkpipe(kaweth->dev, 2), + private_header, + skb->len, + kaweth_usb_transmit_complete, + kaweth); + kaweth->end = 0; + kaweth->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; + + if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) + { + kaweth_warn("kaweth failed tx_urb %d", res); + kaweth->stats.tx_errors++; + + netif_start_queue(net); + dev_kfree_skb_irq(skb); + } + else + { + kaweth->stats.tx_packets++; + kaweth->stats.tx_bytes += skb->len; + net->trans_start = jiffies; + } + + spin_unlock(&kaweth->device_lock); + + return 0; +} + +/**************************************************************** + * kaweth_set_rx_mode + ****************************************************************/ +static void kaweth_set_rx_mode(struct net_device *net) +{ + struct kaweth_device *kaweth = netdev_priv(net); + + __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | + KAWETH_PACKET_FILTER_BROADCAST | + KAWETH_PACKET_FILTER_MULTICAST; + + kaweth_dbg("Setting Rx mode to %d", packet_filter_bitmap); + + netif_stop_queue(net); + + if (net->flags & IFF_PROMISC) { + packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; + } + else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { + packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; + } + + kaweth->packet_filter_bitmap = packet_filter_bitmap; + netif_wake_queue(net); +} + +/**************************************************************** + * kaweth_async_set_rx_mode + ****************************************************************/ +static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) +{ + __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; + kaweth->packet_filter_bitmap = 0; + if (packet_filter_bitmap == 0) + return; + + { + int result; + result = kaweth_control(kaweth, + usb_sndctrlpipe(kaweth->dev, 0), + KAWETH_COMMAND_SET_PACKET_FILTER, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + packet_filter_bitmap, + 0, + (void *)&kaweth->scratch, + 0, + KAWETH_CONTROL_TIMEOUT); + + if(result < 0) { + kaweth_err("Failed to set Rx mode: %d", result); + } + else { + kaweth_dbg("Set Rx mode to %d", packet_filter_bitmap); + } + } +} + +/**************************************************************** + * kaweth_netdev_stats + ****************************************************************/ +static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) +{ + struct kaweth_device *kaweth = netdev_priv(dev); + return &kaweth->stats; +} + +/**************************************************************** + * kaweth_tx_timeout + ****************************************************************/ +static void kaweth_tx_timeout(struct net_device *net) +{ + struct kaweth_device *kaweth = netdev_priv(net); + + kaweth_warn("%s: Tx timed out. Resetting.", net->name); + kaweth->stats.tx_errors++; + net->trans_start = jiffies; + + usb_unlink_urb(kaweth->tx_urb); +} + +/**************************************************************** + * kaweth_probe + ****************************************************************/ +static int kaweth_probe( + struct usb_interface *intf, + const struct usb_device_id *id /* from id_table */ + ) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct kaweth_device *kaweth; + struct net_device *netdev; + const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; + int result = 0; + + kaweth_dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", + dev->devnum, + le16_to_cpu(dev->descriptor.idVendor), + le16_to_cpu(dev->descriptor.idProduct), + le16_to_cpu(dev->descriptor.bcdDevice)); + + kaweth_dbg("Device at %p", dev); + + kaweth_dbg("Descriptor length: %x type: %x", + (int)dev->descriptor.bLength, + (int)dev->descriptor.bDescriptorType); + + netdev = alloc_etherdev(sizeof(*kaweth)); + if (!netdev) + return -ENOMEM; + + kaweth = netdev_priv(netdev); + kaweth->dev = dev; + kaweth->net = netdev; + + spin_lock_init(&kaweth->device_lock); + init_waitqueue_head(&kaweth->term_wait); + + kaweth_dbg("Resetting."); + + kaweth_reset(kaweth); + + /* + * If high byte of bcdDevice is nonzero, firmware is already + * downloaded. Don't try to do it again, or we'll hang the device. + */ + + if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { + kaweth_info("Firmware present in device."); + } else { + /* Download the firmware */ + kaweth_info("Downloading firmware..."); + kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); + if ((result = kaweth_download_firmware(kaweth, + kaweth_new_code, + len_kaweth_new_code, + 100, + 2)) < 0) { + kaweth_err("Error downloading firmware (%d)", result); + goto err_fw; + } + + if ((result = kaweth_download_firmware(kaweth, + kaweth_new_code_fix, + len_kaweth_new_code_fix, + 100, + 3)) < 0) { + kaweth_err("Error downloading firmware fix (%d)", result); + goto err_fw; + } + + if ((result = kaweth_download_firmware(kaweth, + kaweth_trigger_code, + len_kaweth_trigger_code, + 126, + 2)) < 0) { + kaweth_err("Error downloading trigger code (%d)", result); + goto err_fw; + + } + + if ((result = kaweth_download_firmware(kaweth, + kaweth_trigger_code_fix, + len_kaweth_trigger_code_fix, + 126, + 3)) < 0) { + kaweth_err("Error downloading trigger code fix (%d)", result); + goto err_fw; + } + + + if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { + kaweth_err("Error triggering firmware (%d)", result); + goto err_fw; + } + + /* Device will now disappear for a moment... */ + kaweth_info("Firmware loaded. I'll be back..."); +err_fw: + free_page((unsigned long)kaweth->firmware_buf); + free_netdev(netdev); + return -EIO; + } + + result = kaweth_read_configuration(kaweth); + + if(result < 0) { + kaweth_err("Error reading configuration (%d), no net device created", result); + goto err_free_netdev; + } + + kaweth_info("Statistics collection: %x", kaweth->configuration.statistics_mask); + kaweth_info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); + kaweth_info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size)); + kaweth_info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", + (int)kaweth->configuration.hw_addr[0], + (int)kaweth->configuration.hw_addr[1], + (int)kaweth->configuration.hw_addr[2], + (int)kaweth->configuration.hw_addr[3], + (int)kaweth->configuration.hw_addr[4], + (int)kaweth->configuration.hw_addr[5]); + + if(!memcmp(&kaweth->configuration.hw_addr, + &bcast_addr, + sizeof(bcast_addr))) { + kaweth_err("Firmware not functioning properly, no net device created"); + goto err_free_netdev; + } + + if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { + kaweth_dbg("Error setting URB size"); + goto err_free_netdev; + } + + if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { + kaweth_err("Error setting SOFS wait"); + goto err_free_netdev; + } + + result = kaweth_set_receive_filter(kaweth, + KAWETH_PACKET_FILTER_DIRECTED | + KAWETH_PACKET_FILTER_BROADCAST | + KAWETH_PACKET_FILTER_MULTICAST); + + if(result < 0) { + kaweth_err("Error setting receive filter"); + goto err_free_netdev; + } + + kaweth_dbg("Initializing net device."); + + kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!kaweth->tx_urb) + goto err_free_netdev; + kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!kaweth->rx_urb) + goto err_only_tx; + kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!kaweth->irq_urb) + goto err_tx_and_rx; + + kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, + INTBUFFERSIZE, + GFP_KERNEL, + &kaweth->intbufferhandle); + if (!kaweth->intbuffer) + goto err_tx_and_rx_and_irq; + kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, + KAWETH_BUF_SIZE, + GFP_KERNEL, + &kaweth->rxbufferhandle); + if (!kaweth->rx_buf) + goto err_all_but_rxbuf; + + memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); + memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, + sizeof(kaweth->configuration.hw_addr)); + + netdev->open = kaweth_open; + netdev->stop = kaweth_close; + + netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; + netdev->tx_timeout = kaweth_tx_timeout; + + netdev->hard_start_xmit = kaweth_start_xmit; + netdev->set_multicast_list = kaweth_set_rx_mode; + netdev->get_stats = kaweth_netdev_stats; + netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); + SET_ETHTOOL_OPS(netdev, &ops); + + /* kaweth is zeroed as part of alloc_netdev */ + + INIT_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl, (void *)kaweth); + + SET_MODULE_OWNER(netdev); + + usb_set_intfdata(intf, kaweth); + +#if 0 +// dma_supported() is deeply broken on almost all architectures + if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) + kaweth->net->features |= NETIF_F_HIGHDMA; +#endif + + SET_NETDEV_DEV(netdev, &intf->dev); + if (register_netdev(netdev) != 0) { + kaweth_err("Error registering netdev."); + goto err_intfdata; + } + + kaweth_info("kaweth interface created at %s", kaweth->net->name); + + kaweth_dbg("Kaweth probe returning."); + + return 0; + +err_intfdata: + usb_set_intfdata(intf, NULL); + usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); +err_all_but_rxbuf: + usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); +err_tx_and_rx_and_irq: + usb_free_urb(kaweth->irq_urb); +err_tx_and_rx: + usb_free_urb(kaweth->rx_urb); +err_only_tx: + usb_free_urb(kaweth->tx_urb); +err_free_netdev: + free_netdev(netdev); + + return -EIO; +} + +/**************************************************************** + * kaweth_disconnect + ****************************************************************/ +static void kaweth_disconnect(struct usb_interface *intf) +{ + struct kaweth_device *kaweth = usb_get_intfdata(intf); + struct net_device *netdev; + + kaweth_info("Unregistering"); + + usb_set_intfdata(intf, NULL); + if (!kaweth) { + kaweth_warn("unregistering non-existant device"); + return; + } + netdev = kaweth->net; + kaweth->removed = 1; + usb_kill_urb(kaweth->irq_urb); + usb_kill_urb(kaweth->rx_urb); + usb_kill_urb(kaweth->tx_urb); + + kaweth_dbg("Unregistering net device"); + unregister_netdev(netdev); + + usb_free_urb(kaweth->rx_urb); + usb_free_urb(kaweth->tx_urb); + usb_free_urb(kaweth->irq_urb); + + usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); + usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); + + free_netdev(netdev); +} + + +// FIXME this completion stuff is a modified clone of +// an OLD version of some stuff in usb.c ... +struct usb_api_data { + wait_queue_head_t wqh; + int done; +}; + +/*-------------------------------------------------------------------* + * completion handler for compatibility wrappers (sync control/bulk) * + *-------------------------------------------------------------------*/ +static void usb_api_blocking_completion(struct urb *urb, struct pt_regs *regs) +{ + struct usb_api_data *awd = (struct usb_api_data *)urb->context; + + awd->done=1; + wake_up(&awd->wqh); +} + +/*-------------------------------------------------------------------* + * COMPATIBILITY STUFF * + *-------------------------------------------------------------------*/ + +// Starts urb and waits for completion or timeout +static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) +{ + struct usb_api_data awd; + int status; + + init_waitqueue_head(&awd.wqh); + awd.done = 0; + + urb->context = &awd; + status = usb_submit_urb(urb, GFP_NOIO); + if (status) { + // something went wrong + usb_free_urb(urb); + return status; + } + + if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { + // timeout + kaweth_warn("usb_control/bulk_msg: timeout"); + usb_kill_urb(urb); // remove urb safely + status = -ETIMEDOUT; + } + else { + status = urb->status; + } + + if (actual_length) { + *actual_length = urb->actual_length; + } + + usb_free_urb(urb); + return status; +} + +/*-------------------------------------------------------------------*/ +// returns status (negative) or length (positive) +static int kaweth_internal_control_msg(struct usb_device *usb_dev, + unsigned int pipe, + struct usb_ctrlrequest *cmd, void *data, + int len, int timeout) +{ + struct urb *urb; + int retv; + int length; + + urb = usb_alloc_urb(0, GFP_NOIO); + if (!urb) + return -ENOMEM; + + usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, + len, usb_api_blocking_completion, NULL); + + retv = usb_start_wait_urb(urb, timeout, &length); + if (retv < 0) { + return retv; + } + else { + return length; + } +} + + +/**************************************************************** + * kaweth_init + ****************************************************************/ +static int __init kaweth_init(void) +{ + kaweth_dbg("Driver loading"); + return usb_register(&kaweth_driver); +} + +/**************************************************************** + * kaweth_exit + ****************************************************************/ +static void __exit kaweth_exit(void) +{ + usb_deregister(&kaweth_driver); +} + +module_init(kaweth_init); +module_exit(kaweth_exit); + + + + + + + + + diff --git a/drivers/usb/net/kawethfw.h b/drivers/usb/net/kawethfw.h new file mode 100644 index 00000000000..cf85fcb0d1a --- /dev/null +++ b/drivers/usb/net/kawethfw.h @@ -0,0 +1,557 @@ +/******************************************/ +/* NOTE: B6/C3 is data header signature */ +/* 0xAA/0xBB is data length = total */ +/* bytes - 7, 0xCC is type, 0xDD is */ +/* interrupt to use. */ +/******************************************/ + +/**************************************************************** + * kaweth_trigger_code + ****************************************************************/ +static __u8 kaweth_trigger_code[] = +{ + 0xB6, 0xC3, 0xAA, 0xBB, 0xCC, 0xDD, + 0xc8, 0x07, 0xa0, 0x00, 0xf0, 0x07, 0x5e, 0x00, + 0x06, 0x00, 0xf0, 0x07, 0x0a, 0x00, 0x08, 0x00, + 0xf0, 0x09, 0x00, 0x00, 0x02, 0x00, 0xe7, 0x07, + 0x36, 0x00, 0x00, 0x00, 0xf0, 0x07, 0x00, 0x00, + 0x04, 0x00, 0xe7, 0x07, 0x50, 0xc3, 0x10, 0xc0, + 0xf0, 0x09, 0x0e, 0xc0, 0x00, 0x00, 0xe7, 0x87, + 0x01, 0x00, 0x0e, 0xc0, 0x97, 0xcf, 0xd7, 0x09, + 0x00, 0xc0, 0x17, 0x02, 0xc8, 0x07, 0xa0, 0x00, + 0xe7, 0x17, 0x50, 0xc3, 0x10, 0xc0, 0x30, 0xd8, + 0x04, 0x00, 0x30, 0x5c, 0x08, 0x00, 0x04, 0x00, + 0xb0, 0xc0, 0x06, 0x00, 0xc8, 0x05, 0xe7, 0x05, + 0x00, 0xc0, 0xc0, 0xdf, 0x97, 0xcf, 0x49, 0xaf, + 0xc0, 0x07, 0x00, 0x00, 0x60, 0xaf, 0x4a, 0xaf, + 0x00, 0x0c, 0x0c, 0x00, 0x40, 0xd2, 0x00, 0x1c, + 0x0c, 0x00, 0x40, 0xd2, 0x30, 0x00, 0x08, 0x00, + 0xf0, 0x07, 0x00, 0x00, 0x04, 0x00, 0xf0, 0x07, + 0x86, 0x00, 0x06, 0x00, 0x67, 0xcf, 0x27, 0x0c, + 0x02, 0x00, 0x00, 0x00, 0x27, 0x0c, 0x00, 0x00, + 0x0e, 0xc0, 0x49, 0xaf, 0x64, 0xaf, 0xc0, 0x07, + 0x00, 0x00, 0x4b, 0xaf, 0x4a, 0xaf, 0x5a, 0xcf, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x94, 0x00, 0x05, 0x00, + 0x00, 0x00 +}; +/**************************************************************** + * kaweth_trigger_code_fix + ****************************************************************/ +static __u8 kaweth_trigger_code_fix[] = +{ + 0xB6, 0xC3, 0xAA, 0xBB, 0xCC, 0xDD, + 0x02, 0x00, 0x06, 0x00, 0x18, 0x00, 0x3e, 0x00, + 0x80, 0x00, 0x98, 0x00, 0xaa, 0x00, + 0x00, 0x00 +}; + +/**************************************************************** + * kaweth_new_code + ****************************************************************/ +static __u8 kaweth_new_code[] = +{ + 0xB6, 0xC3, 0xAA, 0xBB, 0xCC, 0xDD, + 0x9f, 0xcf, 0xde, 0x06, 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0x20, 0xc0, 0x10, 0x08, + 0xe7, 0xd0, 0x10, 0x08, 0xe7, 0x67, 0x40, 0x00, + 0x10, 0x08, 0x9f, 0xaf, 0x92, 0x0c, 0xc0, 0x09, + 0xd0, 0x06, 0x00, 0x60, 0x05, 0xc4, 0xc0, 0x59, + 0xbe, 0x06, 0x02, 0xc0, 0x9f, 0xaf, 0xec, 0x00, + 0x9f, 0xaf, 0x34, 0x02, 0xe7, 0x57, 0x00, 0x00, + 0xa6, 0x06, 0x9f, 0xa0, 0x7a, 0x02, 0xa7, 0xcf, + 0x7a, 0x06, 0x48, 0x02, 0xe7, 0x09, 0xbe, 0x06, + 0xd0, 0x06, 0xc8, 0x37, 0x04, 0x00, 0x9f, 0xaf, + 0x08, 0x03, 0x97, 0xcf, 0xe7, 0x57, 0x00, 0x00, + 0xce, 0x06, 0x97, 0xc0, 0xd7, 0x09, 0x00, 0xc0, + 0xc1, 0xdf, 0xc8, 0x09, 0xc6, 0x06, 0x08, 0x62, + 0x14, 0xc0, 0x27, 0x04, 0xc6, 0x06, 0x10, 0x94, + 0xf0, 0x07, 0x10, 0x08, 0x02, 0x00, 0xc1, 0x07, + 0x01, 0x00, 0x70, 0x00, 0x04, 0x00, 0xf0, 0x07, + 0x30, 0x01, 0x06, 0x00, 0x50, 0xaf, 0xe7, 0x07, + 0xff, 0xff, 0xd0, 0x06, 0xe7, 0x07, 0x00, 0x00, + 0xce, 0x06, 0xe7, 0x05, 0x00, 0xc0, 0x97, 0xcf, + 0xd7, 0x09, 0x00, 0xc0, 0xc1, 0xdf, 0x48, 0x02, + 0xd0, 0x09, 0xc6, 0x06, 0x27, 0x02, 0xc6, 0x06, + 0xe7, 0x05, 0x00, 0xc0, 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0x21, 0x04, 0xe0, 0x00, + 0xc1, 0x07, 0x01, 0x00, 0xc9, 0x05, 0xc8, 0x05, + 0x97, 0xcf, 0xe7, 0x07, 0x01, 0x00, 0x8e, 0x06, + 0xc8, 0x07, 0x86, 0x06, 0xe7, 0x07, 0x00, 0x00, + 0x86, 0x06, 0xe7, 0x07, 0x10, 0x08, 0x88, 0x06, + 0xe7, 0x07, 0x04, 0x00, 0x8a, 0x06, 0xe7, 0x07, + 0xbc, 0x0c, 0x8c, 0x06, 0xc1, 0x07, 0x03, 0x80, + 0x50, 0xaf, 0x97, 0xcf, 0xe7, 0x07, 0x00, 0x00, + 0x8e, 0x06, 0x97, 0xcf, + 0x00, 0x00 +}; + +/**************************************************************** + * kaweth_new_code_fix + ****************************************************************/ +static __u8 kaweth_new_code_fix[] = +{ + 0xB6, 0xC3, 0xAA, 0xBB, 0xCC, 0xDD, + 0x02, 0x00, 0x08, 0x00, 0x28, 0x00, 0x2c, 0x00, + 0x34, 0x00, 0x3c, 0x00, 0x40, 0x00, 0x48, 0x00, + 0x54, 0x00, 0x58, 0x00, 0x5e, 0x00, 0x64, 0x00, + 0x68, 0x00, 0x6e, 0x00, 0x6c, 0x00, 0x72, 0x00, + 0x76, 0x00, 0x7c, 0x00, 0x80, 0x00, 0x86, 0x00, + 0x8a, 0x00, 0x90, 0x00, 0x94, 0x00, 0x98, 0x00, + 0x9e, 0x00, 0xa6, 0x00, 0xaa, 0x00, 0xb0, 0x00, + 0xb4, 0x00, 0xb8, 0x00, 0xc0, 0x00, 0xc6, 0x00, + 0xca, 0x00, 0xd0, 0x00, 0xd4, 0x00, 0xd8, 0x00, + 0xe0, 0x00, 0xde, 0x00, 0xe8, 0x00, 0xf0, 0x00, + 0xfc, 0x00, 0x04, 0x01, 0x0a, 0x01, 0x18, 0x01, + 0x22, 0x01, 0x28, 0x01, 0x3a, 0x01, 0x3e, 0x01, + 0x7e, 0x01, 0x98, 0x01, 0x9c, 0x01, 0xa2, 0x01, + 0xac, 0x01, 0xb2, 0x01, 0xba, 0x01, 0xc0, 0x01, + 0xc8, 0x01, 0xd0, 0x01, 0xd6, 0x01, 0xf4, 0x01, + 0xfc, 0x01, 0x08, 0x02, 0x16, 0x02, 0x1a, 0x02, + 0x22, 0x02, 0x2a, 0x02, 0x2e, 0x02, 0x3e, 0x02, + 0x44, 0x02, 0x4a, 0x02, 0x50, 0x02, 0x64, 0x02, + 0x62, 0x02, 0x6c, 0x02, 0x72, 0x02, 0x86, 0x02, + 0x8c, 0x02, 0x90, 0x02, 0x9e, 0x02, 0xbc, 0x02, + 0xd0, 0x02, 0xd8, 0x02, 0xdc, 0x02, 0xe0, 0x02, + 0xe8, 0x02, 0xe6, 0x02, 0xf4, 0x02, 0xfe, 0x02, + 0x04, 0x03, 0x0c, 0x03, 0x28, 0x03, 0x7c, 0x03, + 0x90, 0x03, 0x94, 0x03, 0x9c, 0x03, 0xa2, 0x03, + 0xc0, 0x03, 0xd0, 0x03, 0xd4, 0x03, 0xee, 0x03, + 0xfa, 0x03, 0xfe, 0x03, 0x2e, 0x04, 0x32, 0x04, + 0x3c, 0x04, 0x40, 0x04, 0x4e, 0x04, 0x76, 0x04, + 0x7c, 0x04, 0x84, 0x04, 0x8a, 0x04, 0x8e, 0x04, + 0xa6, 0x04, 0xb0, 0x04, 0xb8, 0x04, 0xbe, 0x04, + 0xd2, 0x04, 0xdc, 0x04, 0xee, 0x04, 0x10, 0x05, + 0x1a, 0x05, 0x24, 0x05, 0x2a, 0x05, 0x36, 0x05, + 0x34, 0x05, 0x3c, 0x05, 0x42, 0x05, 0x64, 0x05, + 0x6a, 0x05, 0x6e, 0x05, 0x86, 0x05, 0x22, 0x06, + 0x26, 0x06, 0x2c, 0x06, 0x30, 0x06, 0x42, 0x06, + 0x4a, 0x06, 0x4e, 0x06, 0x56, 0x06, 0x54, 0x06, + 0x5a, 0x06, 0x60, 0x06, 0x66, 0x06, 0xe8, 0x06, + 0xee, 0x06, 0xf4, 0x06, 0x16, 0x07, 0x26, 0x07, + 0x2c, 0x07, 0x32, 0x07, 0x36, 0x07, 0x3a, 0x07, + 0x3e, 0x07, 0x52, 0x07, 0x56, 0x07, 0x5a, 0x07, + 0x64, 0x07, 0x76, 0x07, 0x7a, 0x07, 0x80, 0x07, + 0x84, 0x07, 0x8a, 0x07, 0x9e, 0x07, 0xa2, 0x07, + 0xda, 0x07, 0xde, 0x07, 0xe2, 0x07, 0xe6, 0x07, + 0xea, 0x07, 0xee, 0x07, 0xf2, 0x07, 0xf6, 0x07, + 0x0e, 0x08, 0x16, 0x08, 0x18, 0x08, 0x1a, 0x08, + 0x1c, 0x08, 0x1e, 0x08, 0x20, 0x08, 0x22, 0x08, + 0x24, 0x08, 0x26, 0x08, 0x28, 0x08, 0x2a, 0x08, + 0x2c, 0x08, 0x2e, 0x08, 0x32, 0x08, 0x3a, 0x08, + 0x46, 0x08, 0x4e, 0x08, 0x54, 0x08, 0x5e, 0x08, + 0x78, 0x08, 0x7e, 0x08, 0x82, 0x08, 0x86, 0x08, + 0x8c, 0x08, 0x90, 0x08, 0x98, 0x08, 0x9e, 0x08, + 0xa4, 0x08, 0xaa, 0x08, 0xb0, 0x08, 0xae, 0x08, + 0xb4, 0x08, 0xbe, 0x08, 0xc4, 0x08, 0xc2, 0x08, + 0xca, 0x08, 0xc8, 0x08, 0xd4, 0x08, 0xe4, 0x08, + 0xe8, 0x08, 0xf6, 0x08, 0x14, 0x09, 0x12, 0x09, + 0x1a, 0x09, 0x20, 0x09, 0x26, 0x09, 0x24, 0x09, + 0x2a, 0x09, 0x3e, 0x09, 0x4c, 0x09, 0x56, 0x09, + 0x70, 0x09, 0x74, 0x09, 0x78, 0x09, 0x7e, 0x09, + 0x7c, 0x09, 0x82, 0x09, 0x98, 0x09, 0x9c, 0x09, + 0xa0, 0x09, 0xa6, 0x09, 0xb8, 0x09, 0xdc, 0x09, + 0xe8, 0x09, 0xec, 0x09, 0xfc, 0x09, 0x12, 0x0a, + 0x18, 0x0a, 0x1e, 0x0a, 0x42, 0x0a, 0x46, 0x0a, + 0x4e, 0x0a, 0x54, 0x0a, 0x5a, 0x0a, 0x5e, 0x0a, + 0x68, 0x0a, 0x6e, 0x0a, 0x72, 0x0a, 0x78, 0x0a, + 0x76, 0x0a, 0x7c, 0x0a, 0x80, 0x0a, 0x84, 0x0a, + 0x94, 0x0a, 0xa4, 0x0a, 0xb8, 0x0a, 0xbe, 0x0a, + 0xbc, 0x0a, 0xc2, 0x0a, 0xc8, 0x0a, 0xc6, 0x0a, + 0xcc, 0x0a, 0xd0, 0x0a, 0xd4, 0x0a, 0xd8, 0x0a, + 0xdc, 0x0a, 0xe0, 0x0a, 0xf2, 0x0a, 0xf6, 0x0a, + 0xfa, 0x0a, 0x14, 0x0b, 0x1a, 0x0b, 0x20, 0x0b, + 0x1e, 0x0b, 0x26, 0x0b, 0x2e, 0x0b, 0x2c, 0x0b, + 0x36, 0x0b, 0x3c, 0x0b, 0x42, 0x0b, 0x40, 0x0b, + 0x4a, 0x0b, 0xaa, 0x0b, 0xb0, 0x0b, 0xb6, 0x0b, + 0xc0, 0x0b, 0xc8, 0x0b, 0xda, 0x0b, 0xe8, 0x0b, + 0xec, 0x0b, 0xfa, 0x0b, 0x4a, 0x0c, 0x54, 0x0c, + 0x62, 0x0c, 0x66, 0x0c, 0x96, 0x0c, 0x9a, 0x0c, + 0xa0, 0x0c, 0xa6, 0x0c, 0xa4, 0x0c, 0xac, 0x0c, + 0xb2, 0x0c, 0xb0, 0x0c, 0xc0, 0x0c, + 0x00, 0x00 +}; + + +static const int len_kaweth_trigger_code = sizeof(kaweth_trigger_code); +static const int len_kaweth_trigger_code_fix = sizeof(kaweth_trigger_code_fix); +static const int len_kaweth_new_code = sizeof(kaweth_new_code); +static const int len_kaweth_new_code_fix = sizeof(kaweth_new_code_fix); diff --git a/drivers/usb/net/pegasus.c b/drivers/usb/net/pegasus.c new file mode 100644 index 00000000000..f6c19d73b7d --- /dev/null +++ b/drivers/usb/net/pegasus.c @@ -0,0 +1,1408 @@ +/* + * Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * ChangeLog: + * .... Most of the time spent on reading sources & docs. + * v0.2.x First official release for the Linux kernel. + * v0.3.0 Beutified and structured, some bugs fixed. + * v0.3.x URBifying bulk requests and bugfixing. First relatively + * stable release. Still can touch device's registers only + * from top-halves. + * v0.4.0 Control messages remained unurbified are now URBs. + * Now we can touch the HW at any time. + * v0.4.9 Control urbs again use process context to wait. Argh... + * Some long standing bugs (enable_net_traffic) fixed. + * Also nasty trick about resubmiting control urb from + * interrupt context used. Please let me know how it + * behaves. Pegasus II support added since this version. + * TODO: suppressing HCD warnings spewage on disconnect. + * v0.4.13 Ethernet address is now set at probe(), not at open() + * time as this seems to break dhcpd. + * v0.5.0 branch to 2.5.x kernels + * v0.5.1 ethtool support added + * v0.5.5 rx socket buffers are in a pool and the their allocation + * is out of the interrupt routine. + */ + +#undef DEBUG + +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/mii.h> +#include <linux/usb.h> +#include <linux/module.h> +#include <asm/byteorder.h> +#include <asm/uaccess.h> +#include "pegasus.h" + +/* + * Version Information + */ +#define DRIVER_VERSION "v0.6.12 (2005/01/13)" +#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" +#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" + +static const char driver_name[] = "pegasus"; + +#undef PEGASUS_WRITE_EEPROM +#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ + BMSR_100FULL | BMSR_ANEGCAPABLE) + +static int loopback = 0; +static int mii_mode = 0; +static int multicast_filter_limit = 32; + +static struct usb_eth_dev usb_dev_id[] = { +#define PEGASUS_DEV(pn, vid, pid, flags) \ + {.name = pn, .vendor = vid, .device = pid, .private = flags}, +#include "pegasus.h" +#undef PEGASUS_DEV + {NULL, 0, 0, 0} +}; + +static struct usb_device_id pegasus_ids[] = { +#define PEGASUS_DEV(pn, vid, pid, flags) \ + {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, +#include "pegasus.h" +#undef PEGASUS_DEV + {} +}; + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +module_param(loopback, bool, 0); +module_param(mii_mode, bool, 0); +MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); +MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); + +/* use ethtool to change the level for any given device */ +static int msg_level = -1; +module_param (msg_level, int, 0); +MODULE_PARM_DESC (msg_level, "Override default message level"); + +MODULE_DEVICE_TABLE(usb, pegasus_ids); + +static int update_eth_regs_async(pegasus_t *); +/* Aargh!!! I _really_ hate such tweaks */ +static void ctrl_callback(struct urb *urb, struct pt_regs *regs) +{ + pegasus_t *pegasus = urb->context; + + if (!pegasus) + return; + + switch (urb->status) { + case 0: + if (pegasus->flags & ETH_REGS_CHANGE) { + pegasus->flags &= ~ETH_REGS_CHANGE; + pegasus->flags |= ETH_REGS_CHANGED; + update_eth_regs_async(pegasus); + return; + } + break; + case -EINPROGRESS: + return; + case -ENOENT: + break; + default: + if (netif_msg_drv(pegasus)) + dev_err(&pegasus->intf->dev, "%s, status %d\n", + __FUNCTION__, urb->status); + } + pegasus->flags &= ~ETH_REGS_CHANGED; + wake_up(&pegasus->ctrl_wait); +} + +static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size, + void *data) +{ + int ret; + char *buffer; + DECLARE_WAITQUEUE(wait, current); + + buffer = kmalloc(size, GFP_KERNEL); + if (!buffer) { + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "out of memory in %s\n", + __FUNCTION__); + return -ENOMEM; + } + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + while (pegasus->flags & ETH_REGS_CHANGED) + schedule(); + remove_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_RUNNING); + + pegasus->dr.bRequestType = PEGASUS_REQT_READ; + pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; + pegasus->dr.wValue = cpu_to_le16(0); + pegasus->dr.wIndex = cpu_to_le16p(&indx); + pegasus->dr.wLength = cpu_to_le16p(&size); + pegasus->ctrl_urb->transfer_buffer_length = size; + + usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, + usb_rcvctrlpipe(pegasus->usb, 0), + (char *) &pegasus->dr, + buffer, size, ctrl_callback, pegasus); + + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + + /* using ATOMIC, we'd never wake up if we slept */ + if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { + if (netif_msg_drv(pegasus)) + dev_err(&pegasus->intf->dev, "%s, status %d\n", + __FUNCTION__, ret); + goto out; + } + + schedule(); +out: + remove_wait_queue(&pegasus->ctrl_wait, &wait); + memcpy(data, buffer, size); + kfree(buffer); + + return ret; +} + +static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, + void *data) +{ + int ret; + char *buffer; + DECLARE_WAITQUEUE(wait, current); + + buffer = kmalloc(size, GFP_KERNEL); + if (!buffer) { + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "out of memory in %s\n", + __FUNCTION__); + return -ENOMEM; + } + memcpy(buffer, data, size); + + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + while (pegasus->flags & ETH_REGS_CHANGED) + schedule(); + remove_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_RUNNING); + + pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; + pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; + pegasus->dr.wValue = cpu_to_le16(0); + pegasus->dr.wIndex = cpu_to_le16p(&indx); + pegasus->dr.wLength = cpu_to_le16p(&size); + pegasus->ctrl_urb->transfer_buffer_length = size; + + usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, + usb_sndctrlpipe(pegasus->usb, 0), + (char *) &pegasus->dr, + buffer, size, ctrl_callback, pegasus); + + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + + if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { + if (netif_msg_drv(pegasus)) + dev_err(&pegasus->intf->dev, "%s, status %d\n", + __FUNCTION__, ret); + goto out; + } + + schedule(); +out: + remove_wait_queue(&pegasus->ctrl_wait, &wait); + kfree(buffer); + + return ret; +} + +static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) +{ + int ret; + char *tmp; + DECLARE_WAITQUEUE(wait, current); + + tmp = kmalloc(1, GFP_KERNEL); + if (!tmp) { + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "out of memory in %s\n", + __FUNCTION__); + return -ENOMEM; + } + memcpy(tmp, &data, 1); + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + while (pegasus->flags & ETH_REGS_CHANGED) + schedule(); + remove_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_RUNNING); + + pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; + pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; + pegasus->dr.wValue = cpu_to_le16(data); + pegasus->dr.wIndex = cpu_to_le16p(&indx); + pegasus->dr.wLength = cpu_to_le16(1); + pegasus->ctrl_urb->transfer_buffer_length = 1; + + usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, + usb_sndctrlpipe(pegasus->usb, 0), + (char *) &pegasus->dr, + &tmp, 1, ctrl_callback, pegasus); + + add_wait_queue(&pegasus->ctrl_wait, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + + if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { + if (netif_msg_drv(pegasus)) + dev_err(&pegasus->intf->dev, "%s, status %d\n", + __FUNCTION__, ret); + goto out; + } + + schedule(); +out: + remove_wait_queue(&pegasus->ctrl_wait, &wait); + kfree(tmp); + + return ret; +} + +static int update_eth_regs_async(pegasus_t * pegasus) +{ + int ret; + + pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; + pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; + pegasus->dr.wValue = 0; + pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); + pegasus->dr.wLength = cpu_to_le16(3); + pegasus->ctrl_urb->transfer_buffer_length = 3; + + usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, + usb_sndctrlpipe(pegasus->usb, 0), + (char *) &pegasus->dr, + pegasus->eth_regs, 3, ctrl_callback, pegasus); + + if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) + if (netif_msg_drv(pegasus)) + dev_err(&pegasus->intf->dev, "%s, status %d\n", + __FUNCTION__, ret); + + return ret; +} + +static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd) +{ + int i; + __u8 data[4] = { phy, 0, 0, indx }; + __le16 regdi; + int ret; + + ret = set_register(pegasus, PhyCtrl, 0); + ret = set_registers(pegasus, PhyAddr, sizeof (data), data); + ret = set_register(pegasus, PhyCtrl, (indx | PHY_READ)); + for (i = 0; i < REG_TIMEOUT; i++) { + ret = get_registers(pegasus, PhyCtrl, 1, data); + if (data[0] & PHY_DONE) + break; + } + if (i < REG_TIMEOUT) { + ret = get_registers(pegasus, PhyData, 2, ®di); + *regd = le16_to_cpu(regdi); + return 1; + } + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); + + return 0; +} + +static int mdio_read(struct net_device *dev, int phy_id, int loc) +{ + pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); + u16 res; + + read_mii_word(pegasus, phy_id, loc, &res); + return (int)res; +} + +static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd) +{ + int i; + __u8 data[4] = { phy, 0, 0, indx }; + int ret; + + data[1] = (u8) regd; + data[2] = (u8) (regd >> 8); + ret = set_register(pegasus, PhyCtrl, 0); + ret = set_registers(pegasus, PhyAddr, sizeof(data), data); + ret = set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); + for (i = 0; i < REG_TIMEOUT; i++) { + ret = get_registers(pegasus, PhyCtrl, 1, data); + if (data[0] & PHY_DONE) + break; + } + if (i < REG_TIMEOUT) + return 0; + + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); + return 1; +} + +static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) +{ + pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); + + write_mii_word(pegasus, phy_id, loc, val); +} + +static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata) +{ + int i; + __u8 tmp; + __le16 retdatai; + int ret; + + ret = set_register(pegasus, EpromCtrl, 0); + ret = set_register(pegasus, EpromOffset, index); + ret = set_register(pegasus, EpromCtrl, EPROM_READ); + + for (i = 0; i < REG_TIMEOUT; i++) { + ret = get_registers(pegasus, EpromCtrl, 1, &tmp); + if (tmp & EPROM_DONE) + break; + } + if (i < REG_TIMEOUT) { + ret = get_registers(pegasus, EpromData, 2, &retdatai); + *retdata = le16_to_cpu(retdatai); + return 0; + } + + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); + return -1; +} + +#ifdef PEGASUS_WRITE_EEPROM +static inline void enable_eprom_write(pegasus_t * pegasus) +{ + __u8 tmp; + int ret; + + ret = get_registers(pegasus, EthCtrl2, 1, &tmp); + ret = set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); +} + +static inline void disable_eprom_write(pegasus_t * pegasus) +{ + __u8 tmp; + int ret; + + ret = get_registers(pegasus, EthCtrl2, 1, &tmp); + ret = set_register(pegasus, EpromCtrl, 0); + ret = set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); +} + +static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data) +{ + int i; + __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; + int ret; + + ret = set_registers(pegasus, EpromOffset, 4, d); + enable_eprom_write(pegasus); + ret = set_register(pegasus, EpromOffset, index); + ret = set_registers(pegasus, EpromData, 2, &data); + ret = set_register(pegasus, EpromCtrl, EPROM_WRITE); + + for (i = 0; i < REG_TIMEOUT; i++) { + ret = get_registers(pegasus, EpromCtrl, 1, &tmp); + if (tmp & EPROM_DONE) + break; + } + disable_eprom_write(pegasus); + if (i < REG_TIMEOUT) + return 0; + if (netif_msg_drv(pegasus)) + dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); + return -1; +} +#endif /* PEGASUS_WRITE_EEPROM */ + +static inline void get_node_id(pegasus_t * pegasus, __u8 * id) +{ + int i; + __u16 w16; + + for (i = 0; i < 3; i++) { + read_eprom_word(pegasus, i, &w16); + ((__le16 *) id)[i] = cpu_to_le16p(&w16); + } +} + +static void set_ethernet_addr(pegasus_t * pegasus) +{ + __u8 node_id[6]; + int ret; + + get_node_id(pegasus, node_id); + ret = set_registers(pegasus, EthID, sizeof (node_id), node_id); + memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id)); +} + +static inline int reset_mac(pegasus_t * pegasus) +{ + __u8 data = 0x8; + int i; + int ret; + + ret = set_register(pegasus, EthCtrl1, data); + for (i = 0; i < REG_TIMEOUT; i++) { + ret = get_registers(pegasus, EthCtrl1, 1, &data); + if (~data & 0x08) { + if (loopback & 1) + break; + if (mii_mode && (pegasus->features & HAS_HOME_PNA)) + ret = set_register(pegasus, Gpio1, 0x34); + else + ret = set_register(pegasus, Gpio1, 0x26); + ret = set_register(pegasus, Gpio0, pegasus->features); + ret = set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); + break; + } + } + if (i == REG_TIMEOUT) + return 1; + + if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || + usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { + ret = set_register(pegasus, Gpio0, 0x24); + ret = set_register(pegasus, Gpio0, 0x26); + } + if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { + __u16 auxmode; + read_mii_word(pegasus, 3, 0x1b, &auxmode); + write_mii_word(pegasus, 3, 0x1b, auxmode | 4); + } + + return 0; +} + +static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) +{ + __u16 linkpart; + __u8 data[4]; + pegasus_t *pegasus = netdev_priv(dev); + int ret; + + read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); + data[0] = 0xc9; + data[1] = 0; + if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) + data[1] |= 0x20; /* set full duplex */ + if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) + data[1] |= 0x10; /* set 100 Mbps */ + if (mii_mode) + data[1] = 0; + data[2] = (loopback & 1) ? 0x09 : 0x01; + + memcpy(pegasus->eth_regs, data, sizeof (data)); + ret = set_registers(pegasus, EthCtrl0, 3, data); + + if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || + usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { + u16 auxmode; + read_mii_word(pegasus, 0, 0x1b, &auxmode); + write_mii_word(pegasus, 0, 0x1b, auxmode | 4); + } + + return 0; +} + +static void fill_skb_pool(pegasus_t * pegasus) +{ + int i; + + for (i = 0; i < RX_SKBS; i++) { + if (pegasus->rx_pool[i]) + continue; + pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); + /* + ** we give up if the allocation fail. the tasklet will be + ** rescheduled again anyway... + */ + if (pegasus->rx_pool[i] == NULL) + return; + pegasus->rx_pool[i]->dev = pegasus->net; + skb_reserve(pegasus->rx_pool[i], 2); + } +} + +static void free_skb_pool(pegasus_t * pegasus) +{ + int i; + + for (i = 0; i < RX_SKBS; i++) { + if (pegasus->rx_pool[i]) { + dev_kfree_skb(pegasus->rx_pool[i]); + pegasus->rx_pool[i] = NULL; + } + } +} + +static inline struct sk_buff *pull_skb(pegasus_t * pegasus) +{ + int i; + struct sk_buff *skb; + + for (i = 0; i < RX_SKBS; i++) { + if (likely(pegasus->rx_pool[i] != NULL)) { + skb = pegasus->rx_pool[i]; + pegasus->rx_pool[i] = NULL; + return skb; + } + } + return NULL; +} + +static void read_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + pegasus_t *pegasus = urb->context; + struct net_device *net; + int rx_status, count = urb->actual_length; + u8 *buf = urb->transfer_buffer; + __u16 pkt_len; + + if (!pegasus) + return; + + net = pegasus->net; + if (!netif_device_present(net) || !netif_running(net)) + return; + + switch (urb->status) { + case 0: + break; + case -ETIMEDOUT: + if (netif_msg_rx_err(pegasus)) + pr_debug("%s: reset MAC\n", net->name); + pegasus->flags &= ~PEGASUS_RX_BUSY; + break; + case -EPIPE: /* stall, or disconnect from TT */ + /* FIXME schedule work to clear the halt */ + if (netif_msg_rx_err(pegasus)) + printk(KERN_WARNING "%s: no rx stall recovery\n", + net->name); + return; + case -ENOENT: + case -ECONNRESET: + case -ESHUTDOWN: + if (netif_msg_ifdown(pegasus)) + pr_debug("%s: rx unlink, %d\n", net->name, urb->status); + return; + default: + if (netif_msg_rx_err(pegasus)) + pr_debug("%s: RX status %d\n", net->name, urb->status); + goto goon; + } + + if (!count || count < 4) + goto goon; + + rx_status = buf[count - 2]; + if (rx_status & 0x1e) { + if (netif_msg_rx_err(pegasus)) + pr_debug("%s: RX packet error %x\n", + net->name, rx_status); + pegasus->stats.rx_errors++; + if (rx_status & 0x06) // long or runt + pegasus->stats.rx_length_errors++; + if (rx_status & 0x08) + pegasus->stats.rx_crc_errors++; + if (rx_status & 0x10) // extra bits + pegasus->stats.rx_frame_errors++; + goto goon; + } + if (pegasus->chip == 0x8513) { + pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); + pkt_len &= 0x0fff; + pegasus->rx_skb->data += 2; + } else { + pkt_len = buf[count - 3] << 8; + pkt_len += buf[count - 4]; + pkt_len &= 0xfff; + pkt_len -= 8; + } + + /* + * at this point we are sure pegasus->rx_skb != NULL + * so we go ahead and pass up the packet. + */ + skb_put(pegasus->rx_skb, pkt_len); + pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); + netif_rx(pegasus->rx_skb); + pegasus->stats.rx_packets++; + pegasus->stats.rx_bytes += pkt_len; + + if (pegasus->flags & PEGASUS_UNPLUG) + return; + + spin_lock(&pegasus->rx_pool_lock); + pegasus->rx_skb = pull_skb(pegasus); + spin_unlock(&pegasus->rx_pool_lock); + + if (pegasus->rx_skb == NULL) + goto tl_sched; +goon: + usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, + usb_rcvbulkpipe(pegasus->usb, 1), + pegasus->rx_skb->data, PEGASUS_MTU + 8, + read_bulk_callback, pegasus); + if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) { + pegasus->flags |= PEGASUS_RX_URB_FAIL; + goto tl_sched; + } else { + pegasus->flags &= ~PEGASUS_RX_URB_FAIL; + } + + return; + +tl_sched: + tasklet_schedule(&pegasus->rx_tl); +} + +static void rx_fixup(unsigned long data) +{ + pegasus_t *pegasus; + unsigned long flags; + + pegasus = (pegasus_t *) data; + if (pegasus->flags & PEGASUS_UNPLUG) + return; + + spin_lock_irqsave(&pegasus->rx_pool_lock, flags); + fill_skb_pool(pegasus); + if (pegasus->flags & PEGASUS_RX_URB_FAIL) + if (pegasus->rx_skb) + goto try_again; + if (pegasus->rx_skb == NULL) { + pegasus->rx_skb = pull_skb(pegasus); + } + if (pegasus->rx_skb == NULL) { + if (netif_msg_rx_err(pegasus)) + printk(KERN_WARNING "%s: low on memory\n", + pegasus->net->name); + tasklet_schedule(&pegasus->rx_tl); + goto done; + } + usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, + usb_rcvbulkpipe(pegasus->usb, 1), + pegasus->rx_skb->data, PEGASUS_MTU + 8, + read_bulk_callback, pegasus); +try_again: + if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) { + pegasus->flags |= PEGASUS_RX_URB_FAIL; + tasklet_schedule(&pegasus->rx_tl); + } else { + pegasus->flags &= ~PEGASUS_RX_URB_FAIL; + } +done: + spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); +} + +static void write_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + pegasus_t *pegasus = urb->context; + struct net_device *net = pegasus->net; + + if (!pegasus) + return; + + if (!netif_device_present(net) || !netif_running(net)) + return; + + switch (urb->status) { + case -EPIPE: + /* FIXME schedule_work() to clear the tx halt */ + netif_stop_queue(net); + if (netif_msg_tx_err(pegasus)) + printk(KERN_WARNING "%s: no tx stall recovery\n", + net->name); + return; + case -ENOENT: + case -ECONNRESET: + case -ESHUTDOWN: + if (netif_msg_ifdown(pegasus)) + pr_debug("%s: tx unlink, %d\n", net->name, urb->status); + return; + default: + if (netif_msg_tx_err(pegasus)) + pr_info("%s: TX status %d\n", net->name, urb->status); + /* FALL THROUGH */ + case 0: + break; + } + + net->trans_start = jiffies; + netif_wake_queue(net); +} + +static void intr_callback(struct urb *urb, struct pt_regs *regs) +{ + pegasus_t *pegasus = urb->context; + struct net_device *net; + int status; + + if (!pegasus) + return; + net = pegasus->net; + + switch (urb->status) { + case 0: + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + default: + /* some Pegasus-I products report LOTS of data + * toggle errors... avoid log spamming + */ + if (netif_msg_timer(pegasus)) + pr_debug("%s: intr status %d\n", net->name, + urb->status); + } + + if (urb->actual_length >= 6) { + u8 * d = urb->transfer_buffer; + + /* byte 0 == tx_status1, reg 2B */ + if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL + |LATE_COL|JABBER_TIMEOUT)) { + pegasus->stats.tx_errors++; + if (d[0] & TX_UNDERRUN) + pegasus->stats.tx_fifo_errors++; + if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) + pegasus->stats.tx_aborted_errors++; + if (d[0] & LATE_COL) + pegasus->stats.tx_window_errors++; + } + + /* d[5].LINK_STATUS lies on some adapters. + * d[0].NO_CARRIER kicks in only with failed TX. + * ... so monitoring with MII may be safest. + */ + if (d[0] & NO_CARRIER) + netif_carrier_off(net); + else + netif_carrier_on(net); + + /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ + pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; + } + + status = usb_submit_urb(urb, SLAB_ATOMIC); + if (status && netif_msg_timer(pegasus)) + printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n", + net->name, status); +} + +static void pegasus_tx_timeout(struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + if (netif_msg_timer(pegasus)) + printk(KERN_WARNING "%s: tx timeout\n", net->name); + pegasus->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; + usb_unlink_urb(pegasus->tx_urb); + pegasus->stats.tx_errors++; +} + +static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; + int res; + __u16 l16 = skb->len; + + netif_stop_queue(net); + + ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); + memcpy(pegasus->tx_buff + 2, skb->data, skb->len); + usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, + usb_sndbulkpipe(pegasus->usb, 2), + pegasus->tx_buff, count, + write_bulk_callback, pegasus); + if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { + if (netif_msg_tx_err(pegasus)) + printk(KERN_WARNING "%s: fail tx, %d\n", + net->name, res); + switch (res) { + case -EPIPE: /* stall, or disconnect from TT */ + /* cleanup should already have been scheduled */ + break; + case -ENODEV: /* disconnect() upcoming */ + break; + default: + pegasus->stats.tx_errors++; + netif_start_queue(net); + } + } else { + pegasus->stats.tx_packets++; + pegasus->stats.tx_bytes += skb->len; + net->trans_start = jiffies; + } + dev_kfree_skb(skb); + + return 0; +} + +static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) +{ + return &((pegasus_t *) netdev_priv(dev))->stats; +} + +static inline void disable_net_traffic(pegasus_t * pegasus) +{ + int tmp = 0; + int ret; + + ret = set_registers(pegasus, EthCtrl0, 2, &tmp); +} + +static inline void get_interrupt_interval(pegasus_t * pegasus) +{ + __u8 data[2]; + + read_eprom_word(pegasus, 4, (__u16 *) data); + if (data[1] < 0x80) { + if (netif_msg_timer(pegasus)) + dev_info(&pegasus->intf->dev, + "intr interval changed from %ums to %ums\n", + data[1], 0x80); + data[1] = 0x80; +#ifdef PEGASUS_WRITE_EEPROM + write_eprom_word(pegasus, 4, *(__u16 *) data); +#endif + } + pegasus->intr_interval = data[1]; +} + +static void set_carrier(struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + u16 tmp; + + if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) + return; + if (tmp & BMSR_LSTATUS) + netif_carrier_on(net); + else + netif_carrier_off(net); +} + +static void free_all_urbs(pegasus_t * pegasus) +{ + usb_free_urb(pegasus->intr_urb); + usb_free_urb(pegasus->tx_urb); + usb_free_urb(pegasus->rx_urb); + usb_free_urb(pegasus->ctrl_urb); +} + +static void unlink_all_urbs(pegasus_t * pegasus) +{ + usb_kill_urb(pegasus->intr_urb); + usb_kill_urb(pegasus->tx_urb); + usb_kill_urb(pegasus->rx_urb); + usb_kill_urb(pegasus->ctrl_urb); +} + +static int alloc_urbs(pegasus_t * pegasus) +{ + pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!pegasus->ctrl_urb) { + return 0; + } + pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!pegasus->rx_urb) { + usb_free_urb(pegasus->ctrl_urb); + return 0; + } + pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!pegasus->tx_urb) { + usb_free_urb(pegasus->rx_urb); + usb_free_urb(pegasus->ctrl_urb); + return 0; + } + pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!pegasus->intr_urb) { + usb_free_urb(pegasus->tx_urb); + usb_free_urb(pegasus->rx_urb); + usb_free_urb(pegasus->ctrl_urb); + return 0; + } + + return 1; +} + +static int pegasus_open(struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + int res; + + if (pegasus->rx_skb == NULL) + pegasus->rx_skb = pull_skb(pegasus); + /* + ** Note: no point to free the pool. it is empty :-) + */ + if (!pegasus->rx_skb) + return -ENOMEM; + + res = set_registers(pegasus, EthID, 6, net->dev_addr); + + usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, + usb_rcvbulkpipe(pegasus->usb, 1), + pegasus->rx_skb->data, PEGASUS_MTU + 8, + read_bulk_callback, pegasus); + if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { + if (netif_msg_ifup(pegasus)) + pr_debug("%s: failed rx_urb, %d", net->name, res); + goto exit; + } + + usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, + usb_rcvintpipe(pegasus->usb, 3), + pegasus->intr_buff, sizeof (pegasus->intr_buff), + intr_callback, pegasus, pegasus->intr_interval); + if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { + if (netif_msg_ifup(pegasus)) + pr_debug("%s: failed intr_urb, %d\n", net->name, res); + usb_kill_urb(pegasus->rx_urb); + goto exit; + } + if ((res = enable_net_traffic(net, pegasus->usb))) { + if (netif_msg_ifup(pegasus)) + pr_debug("%s: can't enable_net_traffic() - %d\n", + net->name, res); + res = -EIO; + usb_kill_urb(pegasus->rx_urb); + usb_kill_urb(pegasus->intr_urb); + free_skb_pool(pegasus); + goto exit; + } + set_carrier(net); + netif_start_queue(net); + if (netif_msg_ifup(pegasus)) + pr_debug("%s: open\n", net->name); + res = 0; +exit: + return res; +} + +static int pegasus_close(struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + + netif_stop_queue(net); + if (!(pegasus->flags & PEGASUS_UNPLUG)) + disable_net_traffic(pegasus); + tasklet_kill(&pegasus->rx_tl); + unlink_all_urbs(pegasus); + + return 0; +} + +static void pegasus_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + pegasus_t *pegasus = netdev_priv(dev); + strncpy(info->driver, driver_name, sizeof (info->driver) - 1); + strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1); + usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info)); +} + +/* also handles three patterns of some kind in hardware */ +#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) + +static void +pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + pegasus_t *pegasus = netdev_priv(dev); + + wol->supported = WAKE_MAGIC | WAKE_PHY; + wol->wolopts = pegasus->wolopts; +} + +static int +pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + pegasus_t *pegasus = netdev_priv(dev); + u8 reg78 = 0x04; + + if (wol->wolopts & ~WOL_SUPPORTED) + return -EINVAL; + + if (wol->wolopts & WAKE_MAGIC) + reg78 |= 0x80; + if (wol->wolopts & WAKE_PHY) + reg78 |= 0x40; + /* FIXME this 0x10 bit still needs to get set in the chip... */ + if (wol->wolopts) + pegasus->eth_regs[0] |= 0x10; + else + pegasus->eth_regs[0] &= ~0x10; + pegasus->wolopts = wol->wolopts; + return set_register(pegasus, WakeupControl, reg78); +} + +static inline void pegasus_reset_wol(struct net_device *dev) +{ + struct ethtool_wolinfo wol; + + memset(&wol, 0, sizeof wol); + (void) pegasus_set_wol(dev, &wol); +} + +static int +pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + pegasus_t *pegasus; + + if (in_atomic()) + return 0; + + pegasus = netdev_priv(dev); + mii_ethtool_gset(&pegasus->mii, ecmd); + + return 0; +} + +static int +pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + pegasus_t *pegasus = netdev_priv(dev); + return mii_ethtool_sset(&pegasus->mii, ecmd); +} + +static int pegasus_nway_reset(struct net_device *dev) +{ + pegasus_t *pegasus = netdev_priv(dev); + return mii_nway_restart(&pegasus->mii); +} + +static u32 pegasus_get_link(struct net_device *dev) +{ + pegasus_t *pegasus = netdev_priv(dev); + return mii_link_ok(&pegasus->mii); +} + +static u32 pegasus_get_msglevel(struct net_device *dev) +{ + pegasus_t *pegasus = netdev_priv(dev); + return pegasus->msg_enable; +} + +static void pegasus_set_msglevel(struct net_device *dev, u32 v) +{ + pegasus_t *pegasus = netdev_priv(dev); + pegasus->msg_enable = v; +} + +static struct ethtool_ops ops = { + .get_drvinfo = pegasus_get_drvinfo, + .get_settings = pegasus_get_settings, + .set_settings = pegasus_set_settings, + .nway_reset = pegasus_nway_reset, + .get_link = pegasus_get_link, + .get_msglevel = pegasus_get_msglevel, + .set_msglevel = pegasus_set_msglevel, + .get_wol = pegasus_get_wol, + .set_wol = pegasus_set_wol, +}; + +static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) +{ + __u16 *data = (__u16 *) & rq->ifr_ifru; + pegasus_t *pegasus = netdev_priv(net); + int res; + + switch (cmd) { + case SIOCDEVPRIVATE: + data[0] = pegasus->phy; + case SIOCDEVPRIVATE + 1: + read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); + res = 0; + break; + case SIOCDEVPRIVATE + 2: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); + res = 0; + break; + default: + res = -EOPNOTSUPP; + } + return res; +} + +static void pegasus_set_multicast(struct net_device *net) +{ + pegasus_t *pegasus = netdev_priv(net); + + if (net->flags & IFF_PROMISC) { + pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; + if (netif_msg_link(pegasus)) + pr_info("%s: Promiscuous mode enabled.\n", net->name); + } else if ((net->mc_count > multicast_filter_limit) || + (net->flags & IFF_ALLMULTI)) { + pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; + pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; + if (netif_msg_link(pegasus)) + pr_info("%s: set allmulti\n", net->name); + } else { + pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; + pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; + } + + pegasus->flags |= ETH_REGS_CHANGE; + ctrl_callback(pegasus->ctrl_urb, NULL); +} + +static __u8 mii_phy_probe(pegasus_t * pegasus) +{ + int i; + __u16 tmp; + + for (i = 0; i < 32; i++) { + read_mii_word(pegasus, i, MII_BMSR, &tmp); + if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) + continue; + else + return i; + } + + return 0xff; +} + +static inline void setup_pegasus_II(pegasus_t * pegasus) +{ + __u8 data = 0xa5; + int ret; + + ret = set_register(pegasus, Reg1d, 0); + ret = set_register(pegasus, Reg7b, 1); + mdelay(100); + if ((pegasus->features & HAS_HOME_PNA) && mii_mode) + ret = set_register(pegasus, Reg7b, 0); + else + ret = set_register(pegasus, Reg7b, 2); + + ret = set_register(pegasus, 0x83, data); + ret = get_registers(pegasus, 0x83, 1, &data); + + if (data == 0xa5) { + pegasus->chip = 0x8513; + } else { + pegasus->chip = 0; + } + + ret = set_register(pegasus, 0x80, 0xc0); + ret = set_register(pegasus, 0x83, 0xff); + ret = set_register(pegasus, 0x84, 0x01); + + if (pegasus->features & HAS_HOME_PNA && mii_mode) + ret = set_register(pegasus, Reg81, 6); + else + ret = set_register(pegasus, Reg81, 2); +} + + +static struct workqueue_struct *pegasus_workqueue = NULL; +#define CARRIER_CHECK_DELAY (2 * HZ) + +static void check_carrier(void *data) +{ + pegasus_t *pegasus = data; + set_carrier(pegasus->net); + if (!(pegasus->flags & PEGASUS_UNPLUG)) { + queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, + CARRIER_CHECK_DELAY); + } +} + +static int pegasus_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct net_device *net; + pegasus_t *pegasus; + int dev_index = id - pegasus_ids; + int res = -ENOMEM; + + usb_get_dev(dev); + net = alloc_etherdev(sizeof(struct pegasus)); + if (!net) { + dev_err(&intf->dev, "can't allocate %s\n", "device"); + goto out; + } + + pegasus = netdev_priv(net); + memset(pegasus, 0, sizeof (struct pegasus)); + pegasus->dev_index = dev_index; + init_waitqueue_head(&pegasus->ctrl_wait); + + if (!alloc_urbs(pegasus)) { + dev_err(&intf->dev, "can't allocate %s\n", "urbs"); + goto out1; + } + + tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); + + INIT_WORK(&pegasus->carrier_check, check_carrier, pegasus); + + pegasus->intf = intf; + pegasus->usb = dev; + pegasus->net = net; + SET_MODULE_OWNER(net); + net->open = pegasus_open; + net->stop = pegasus_close; + net->watchdog_timeo = PEGASUS_TX_TIMEOUT; + net->tx_timeout = pegasus_tx_timeout; + net->do_ioctl = pegasus_ioctl; + net->hard_start_xmit = pegasus_start_xmit; + net->set_multicast_list = pegasus_set_multicast; + net->get_stats = pegasus_netdev_stats; + SET_ETHTOOL_OPS(net, &ops); + pegasus->mii.dev = net; + pegasus->mii.mdio_read = mdio_read; + pegasus->mii.mdio_write = mdio_write; + pegasus->mii.phy_id_mask = 0x1f; + pegasus->mii.reg_num_mask = 0x1f; + spin_lock_init(&pegasus->rx_pool_lock); + pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV + | NETIF_MSG_PROBE | NETIF_MSG_LINK); + + pegasus->features = usb_dev_id[dev_index].private; + get_interrupt_interval(pegasus); + if (reset_mac(pegasus)) { + dev_err(&intf->dev, "can't reset MAC\n"); + res = -EIO; + goto out2; + } + set_ethernet_addr(pegasus); + fill_skb_pool(pegasus); + if (pegasus->features & PEGASUS_II) { + dev_info(&intf->dev, "setup Pegasus II specific registers\n"); + setup_pegasus_II(pegasus); + } + pegasus->phy = mii_phy_probe(pegasus); + if (pegasus->phy == 0xff) { + dev_warn(&intf->dev, "can't locate MII phy, using default\n"); + pegasus->phy = 1; + } + pegasus->mii.phy_id = pegasus->phy; + usb_set_intfdata(intf, pegasus); + SET_NETDEV_DEV(net, &intf->dev); + pegasus_reset_wol(net); + res = register_netdev(net); + if (res) + goto out3; + queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, + CARRIER_CHECK_DELAY); + + dev_info(&intf->dev, "%s, %s, %02x:%02x:%02x:%02x:%02x:%02x\n", + net->name, + usb_dev_id[dev_index].name, + net->dev_addr [0], net->dev_addr [1], + net->dev_addr [2], net->dev_addr [3], + net->dev_addr [4], net->dev_addr [5]); + return 0; + +out3: + usb_set_intfdata(intf, NULL); + free_skb_pool(pegasus); +out2: + free_all_urbs(pegasus); +out1: + free_netdev(net); +out: + usb_put_dev(dev); + return res; +} + +static void pegasus_disconnect(struct usb_interface *intf) +{ + struct pegasus *pegasus = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + if (!pegasus) { + dev_dbg(&intf->dev, "unregistering non-bound device?\n"); + return; + } + + pegasus->flags |= PEGASUS_UNPLUG; + cancel_delayed_work(&pegasus->carrier_check); + unregister_netdev(pegasus->net); + usb_put_dev(interface_to_usbdev(intf)); + free_all_urbs(pegasus); + free_skb_pool(pegasus); + if (pegasus->rx_skb) + dev_kfree_skb(pegasus->rx_skb); + free_netdev(pegasus->net); +} + +static int pegasus_suspend (struct usb_interface *intf, pm_message_t state) +{ + struct pegasus *pegasus = usb_get_intfdata(intf); + + netif_device_detach (pegasus->net); + return 0; +} + +static int pegasus_resume (struct usb_interface *intf) +{ + struct pegasus *pegasus = usb_get_intfdata(intf); + + netif_device_attach (pegasus->net); + return 0; +} + +static struct usb_driver pegasus_driver = { + .name = driver_name, + .probe = pegasus_probe, + .disconnect = pegasus_disconnect, + .id_table = pegasus_ids, + .suspend = pegasus_suspend, + .resume = pegasus_resume, +}; + +static int __init pegasus_init(void) +{ + pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); + pegasus_workqueue = create_singlethread_workqueue("pegasus"); + if (!pegasus_workqueue) + return -ENOMEM; + return usb_register(&pegasus_driver); +} + +static void __exit pegasus_exit(void) +{ + destroy_workqueue(pegasus_workqueue); + usb_deregister(&pegasus_driver); +} + +module_init(pegasus_init); +module_exit(pegasus_exit); diff --git a/drivers/usb/net/pegasus.h b/drivers/usb/net/pegasus.h new file mode 100644 index 00000000000..13ccedef5c7 --- /dev/null +++ b/drivers/usb/net/pegasus.h @@ -0,0 +1,298 @@ +/* + * Copyright (c) 1999-2003 Petko Manolov - Petkan (petkan@users.sourceforge.net) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + + +#ifndef PEGASUS_DEV + +#define PEGASUS_II 0x80000000 +#define HAS_HOME_PNA 0x40000000 + +#define PEGASUS_MTU 1536 +#define RX_SKBS 4 + +#define EPROM_WRITE 0x01 +#define EPROM_READ 0x02 +#define EPROM_DONE 0x04 +#define EPROM_WR_ENABLE 0x10 +#define EPROM_LOAD 0x20 + +#define PHY_DONE 0x80 +#define PHY_READ 0x40 +#define PHY_WRITE 0x20 +#define DEFAULT_GPIO_RESET 0x24 +#define LINKSYS_GPIO_RESET 0x24 +#define DEFAULT_GPIO_SET 0x26 + +#define PEGASUS_PRESENT 0x00000001 +#define PEGASUS_TX_BUSY 0x00000004 +#define PEGASUS_RX_BUSY 0x00000008 +#define CTRL_URB_RUNNING 0x00000010 +#define CTRL_URB_SLEEP 0x00000020 +#define PEGASUS_UNPLUG 0x00000040 +#define PEGASUS_RX_URB_FAIL 0x00000080 +#define ETH_REGS_CHANGE 0x40000000 +#define ETH_REGS_CHANGED 0x80000000 + +#define RX_MULTICAST 2 +#define RX_PROMISCUOUS 4 + +#define REG_TIMEOUT (HZ) +#define PEGASUS_TX_TIMEOUT (HZ*10) + +#define TX_UNDERRUN 0x80 +#define EXCESSIVE_COL 0x40 +#define LATE_COL 0x20 +#define NO_CARRIER 0x10 +#define LOSS_CARRIER 0x08 +#define JABBER_TIMEOUT 0x04 + +#define LINK_STATUS 0x01 + +#define PEGASUS_REQT_READ 0xc0 +#define PEGASUS_REQT_WRITE 0x40 +#define PEGASUS_REQ_GET_REGS 0xf0 +#define PEGASUS_REQ_SET_REGS 0xf1 +#define PEGASUS_REQ_SET_REG PEGASUS_REQ_SET_REGS + +enum pegasus_registers { + EthCtrl0 = 0, + EthCtrl1 = 1, + EthCtrl2 = 2, + EthID = 0x10, + Reg1d = 0x1d, + EpromOffset = 0x20, + EpromData = 0x21, /* 0x21 low, 0x22 high byte */ + EpromCtrl = 0x23, + PhyAddr = 0x25, + PhyData = 0x26, /* 0x26 low, 0x27 high byte */ + PhyCtrl = 0x28, + UsbStst = 0x2a, + EthTxStat0 = 0x2b, + EthTxStat1 = 0x2c, + EthRxStat = 0x2d, + WakeupControl = 0x78, + Reg7b = 0x7b, + Gpio0 = 0x7e, + Gpio1 = 0x7f, + Reg81 = 0x81, +}; + + +typedef struct pegasus { + struct usb_device *usb; + struct usb_interface *intf; + struct net_device *net; + struct net_device_stats stats; + struct mii_if_info mii; + unsigned flags; + unsigned features; + u32 msg_enable; + u32 wolopts; + int dev_index; + int intr_interval; + struct tasklet_struct rx_tl; + struct work_struct carrier_check; + struct urb *ctrl_urb, *rx_urb, *tx_urb, *intr_urb; + struct sk_buff *rx_pool[RX_SKBS]; + struct sk_buff *rx_skb; + struct usb_ctrlrequest dr; + wait_queue_head_t ctrl_wait; + spinlock_t rx_pool_lock; + int chip; + unsigned char intr_buff[8]; + __u8 tx_buff[PEGASUS_MTU]; + __u8 eth_regs[4]; + __u8 phy; + __u8 gpio_res; +} pegasus_t; + + +struct usb_eth_dev { + char *name; + __u16 vendor; + __u16 device; + __u32 private; /* LSB is gpio reset value */ +}; + +#define VENDOR_3COM 0x0506 +#define VENDOR_ABOCOM 0x07b8 +#define VENDOR_ACCTON 0x083a +#define VENDOR_ADMTEK 0x07a6 +#define VENDOR_AEILAB 0x3334 +#define VENDOR_ALLIEDTEL 0x07c9 +#define VENDOR_ATEN 0x0557 +#define VENDOR_BELKIN 0x050d +#define VENDOR_BILLIONTON 0x08dd +#define VENDOR_COMPAQ 0x049f +#define VENDOR_COREGA 0x07aa +#define VENDOR_DLINK 0x2001 +#define VENDOR_ELCON 0x0db7 +#define VENDOR_ELSA 0x05cc +#define VENDOR_GIGABYTE 0x1044 +#define VENDOR_HAWKING 0x0e66 +#define VENDOR_HP 0x03f0 +#define VENDOR_IODATA 0x04bb +#define VENDOR_KINGSTON 0x0951 +#define VENDOR_LANEED 0x056e +#define VENDOR_LINKSYS 0x066b +#define VENDOR_MELCO 0x0411 +#define VENDOR_MICROSOFT 0x045e +#define VENDOR_MOBILITY 0x1342 +#define VENDOR_NETGEAR 0x0846 +#define VENDOR_OCT 0x0b39 +#define VENDOR_SMARTBRIDGES 0x08d1 +#define VENDOR_SMC 0x0707 +#define VENDOR_SOHOWARE 0x15e8 +#define VENDOR_SIEMENS 0x067c + + +#else /* PEGASUS_DEV */ + +PEGASUS_DEV( "3Com USB Ethernet 3C460B", VENDOR_3COM, 0x4601, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "ATEN USB Ethernet UC-110T", VENDOR_ATEN, 0x2007, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "USB HPNA/Ethernet", VENDOR_ABOCOM, 0x110c, + DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA ) +PEGASUS_DEV( "USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4104, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4004, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4007, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x4102, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x4002, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x400b, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x400c, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0xabc1, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x200c, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Accton USB 10/100 Ethernet Adapter", VENDOR_ACCTON, 0x1046, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "SpeedStream USB 10/100 Ethernet", VENDOR_ACCTON, 0x5046, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "ADMtek ADM8511 \"Pegasus II\" USB Ethernet", + VENDOR_ADMTEK, 0x8511, + DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA ) +PEGASUS_DEV( "ADMtek ADM8513 \"Pegasus II\" USB Ethernet", + VENDOR_ADMTEK, 0x8513, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "ADMtek ADM8515 \"Pegasus II\" USB-2.0 Ethernet", + VENDOR_ADMTEK, 0x8515, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "ADMtek AN986 \"Pegasus\" USB Ethernet (evaluation board)", + VENDOR_ADMTEK, 0x0986, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "AN986A USB MAC", VENDOR_ADMTEK, 1986, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "AEI USB Fast Ethernet Adapter", VENDOR_AEILAB, 0x1701, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Billionton USB-100", VENDOR_BILLIONTON, 0x0986, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "Billionton USBLP-100", VENDOR_BILLIONTON, 0x0987, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "iPAQ Networking 10/100 USB", VENDOR_COMPAQ, 0x8511, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Billionton USBEL-100", VENDOR_BILLIONTON, 0x0988, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "Billionton USBE-100", VENDOR_BILLIONTON, 0x8511, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Corega FEter USB-TX", VENDOR_COREGA, 0x0004, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "Corega FEter USB-TXS", VENDOR_COREGA, 0x000d, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4001, + LINKSYS_GPIO_RESET ) +PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4002, + LINKSYS_GPIO_RESET ) +PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4102, + LINKSYS_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x400b, + LINKSYS_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x200c, + LINKSYS_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "D-Link DSB-650TX(PNA)", VENDOR_DLINK, 0x4003, + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "D-Link DSB-650", VENDOR_DLINK, 0xabc1, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "GOLDPFEIL USB Adapter", VENDOR_ELCON, 0x0002, + DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA ) +PEGASUS_DEV( "EasiDock Ethernet", VENDOR_MOBILITY, 0x0304, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "Elsa Micolink USB2Ethernet", VENDOR_ELSA, 0x3000, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "GIGABYTE GN-BR402W Wireless Router", VENDOR_GIGABYTE, 0x8002, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "Hawking UF100 10/100 Ethernet", VENDOR_HAWKING, 0x400c, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "HP hn210c Ethernet USB", VENDOR_HP, 0x811c, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "IO DATA USB ET/TX", VENDOR_IODATA, 0x0904, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "IO DATA USB ET/TX-S", VENDOR_IODATA, 0x0913, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Kingston KNU101TX Ethernet", VENDOR_KINGSTON, 0x000a, + DEFAULT_GPIO_RESET) +PEGASUS_DEV( "LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x4002, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x400b, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "LANEED USB Ethernet LD-USB/T", VENDOR_LANEED, 0xabc1, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x200c, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Linksys USB10TX", VENDOR_LINKSYS, 0x2202, + LINKSYS_GPIO_RESET ) +PEGASUS_DEV( "Linksys USB100TX", VENDOR_LINKSYS, 0x2203, + LINKSYS_GPIO_RESET ) +PEGASUS_DEV( "Linksys USB100TX", VENDOR_LINKSYS, 0x2204, + LINKSYS_GPIO_RESET | HAS_HOME_PNA ) +PEGASUS_DEV( "Linksys USB10T Ethernet Adapter", VENDOR_LINKSYS, 0x2206, + LINKSYS_GPIO_RESET | PEGASUS_II) +PEGASUS_DEV( "Linksys USB USB100TX", VENDOR_LINKSYS, 0x400b, + LINKSYS_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Linksys USB10TX", VENDOR_LINKSYS, 0x200c, + LINKSYS_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0001, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0005, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "MELCO/BUFFALO LUA2-TX", VENDOR_MELCO, 0x0009, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "Microsoft MN-110", VENDOR_MICROSOFT, 0x007a, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "NETGEAR FA101", VENDOR_NETGEAR, 0x1020, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "OCT Inc.", VENDOR_OCT, 0x0109, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "OCT USB TO Ethernet", VENDOR_OCT, 0x0901, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "smartNIC 2 PnP Adapter", VENDOR_SMARTBRIDGES, 0x0003, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "SMC 202 USB Ethernet", VENDOR_SMC, 0x0200, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "SMC 2206 USB Ethernet", VENDOR_SMC, 0x0201, + DEFAULT_GPIO_RESET | PEGASUS_II) +PEGASUS_DEV( "SOHOware NUB100 Ethernet", VENDOR_SOHOWARE, 0x9100, + DEFAULT_GPIO_RESET ) +PEGASUS_DEV( "SOHOware NUB110 Ethernet", VENDOR_SOHOWARE, 0x9110, + DEFAULT_GPIO_RESET | PEGASUS_II ) +PEGASUS_DEV( "SpeedStream USB 10/100 Ethernet", VENDOR_SIEMENS, 0x1001, + DEFAULT_GPIO_RESET | PEGASUS_II ) + + +#endif /* PEGASUS_DEV */ diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c new file mode 100644 index 00000000000..8fb223385f2 --- /dev/null +++ b/drivers/usb/net/rtl8150.c @@ -0,0 +1,942 @@ +/* + * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ + +#include <linux/config.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/signal.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/usb.h> +#include <asm/uaccess.h> + +/* Version Information */ +#define DRIVER_VERSION "v0.6.2 (2004/08/27)" +#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" +#define DRIVER_DESC "rtl8150 based usb-ethernet driver" + +#define IDR 0x0120 +#define MAR 0x0126 +#define CR 0x012e +#define TCR 0x012f +#define RCR 0x0130 +#define TSR 0x0132 +#define RSR 0x0133 +#define CON0 0x0135 +#define CON1 0x0136 +#define MSR 0x0137 +#define PHYADD 0x0138 +#define PHYDAT 0x0139 +#define PHYCNT 0x013b +#define GPPC 0x013d +#define BMCR 0x0140 +#define BMSR 0x0142 +#define ANAR 0x0144 +#define ANLP 0x0146 +#define AER 0x0148 +#define CSCR 0x014C /* This one has the link status */ +#define CSCR_LINK_STATUS (1 << 3) + +#define IDR_EEPROM 0x1202 + +#define PHY_READ 0 +#define PHY_WRITE 0x20 +#define PHY_GO 0x40 + +#define MII_TIMEOUT 10 +#define INTBUFSIZE 8 + +#define RTL8150_REQT_READ 0xc0 +#define RTL8150_REQT_WRITE 0x40 +#define RTL8150_REQ_GET_REGS 0x05 +#define RTL8150_REQ_SET_REGS 0x05 + + +/* Transmit status register errors */ +#define TSR_ECOL (1<<5) +#define TSR_LCOL (1<<4) +#define TSR_LOSS_CRS (1<<3) +#define TSR_JBR (1<<2) +#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) +/* Receive status register errors */ +#define RSR_CRC (1<<2) +#define RSR_FAE (1<<1) +#define RSR_ERRORS (RSR_CRC | RSR_FAE) + +/* Media status register definitions */ +#define MSR_DUPLEX (1<<4) +#define MSR_SPEED (1<<3) +#define MSR_LINK (1<<2) + +/* Interrupt pipe data */ +#define INT_TSR 0x00 +#define INT_RSR 0x01 +#define INT_MSR 0x02 +#define INT_WAKSR 0x03 +#define INT_TXOK_CNT 0x04 +#define INT_RXLOST_CNT 0x05 +#define INT_CRERR_CNT 0x06 +#define INT_COL_CNT 0x07 + +/* Transmit status register errors */ +#define TSR_ECOL (1<<5) +#define TSR_LCOL (1<<4) +#define TSR_LOSS_CRS (1<<3) +#define TSR_JBR (1<<2) +#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) +/* Receive status register errors */ +#define RSR_CRC (1<<2) +#define RSR_FAE (1<<1) +#define RSR_ERRORS (RSR_CRC | RSR_FAE) + +/* Media status register definitions */ +#define MSR_DUPLEX (1<<4) +#define MSR_SPEED (1<<3) +#define MSR_LINK (1<<2) + +/* Interrupt pipe data */ +#define INT_TSR 0x00 +#define INT_RSR 0x01 +#define INT_MSR 0x02 +#define INT_WAKSR 0x03 +#define INT_TXOK_CNT 0x04 +#define INT_RXLOST_CNT 0x05 +#define INT_CRERR_CNT 0x06 +#define INT_COL_CNT 0x07 + + +#define RTL8150_MTU 1540 +#define RTL8150_TX_TIMEOUT (HZ) +#define RX_SKB_POOL_SIZE 4 + +/* rtl8150 flags */ +#define RTL8150_HW_CRC 0 +#define RX_REG_SET 1 +#define RTL8150_UNPLUG 2 +#define RX_URB_FAIL 3 + +/* Define these values to match your device */ +#define VENDOR_ID_REALTEK 0x0bda +#define VENDOR_ID_MELCO 0x0411 +#define VENDOR_ID_MICRONET 0x3980 +#define VENDOR_ID_LONGSHINE 0x07b8 + +#define PRODUCT_ID_RTL8150 0x8150 +#define PRODUCT_ID_LUAKTX 0x0012 +#define PRODUCT_ID_LCS8138TX 0x401a +#define PRODUCT_ID_SP128AR 0x0003 + +#undef EEPROM_WRITE + +/* table of devices that work with this driver */ +static struct usb_device_id rtl8150_table[] = { + {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)}, + {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)}, + {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)}, + {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)}, + {} +}; + +MODULE_DEVICE_TABLE(usb, rtl8150_table); + +struct rtl8150 { + unsigned long flags; + struct usb_device *udev; + struct tasklet_struct tl; + struct net_device_stats stats; + struct net_device *netdev; + struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb; + struct sk_buff *tx_skb, *rx_skb; + struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE]; + spinlock_t rx_pool_lock; + struct usb_ctrlrequest dr; + int intr_interval; + __le16 rx_creg; + u8 *intr_buff; + u8 phy; +}; + +typedef struct rtl8150 rtl8150_t; + +static unsigned long multicast_filter_limit = 32; + +static void fill_skb_pool(rtl8150_t *); +static void free_skb_pool(rtl8150_t *); +static inline struct sk_buff *pull_skb(rtl8150_t *); +static void rtl8150_disconnect(struct usb_interface *intf); +static int rtl8150_probe(struct usb_interface *intf, + const struct usb_device_id *id); + +static const char driver_name [] = "rtl8150"; + +static struct usb_driver rtl8150_driver = { + .owner = THIS_MODULE, + .name = driver_name, + .probe = rtl8150_probe, + .disconnect = rtl8150_disconnect, + .id_table = rtl8150_table, +}; + +/* +** +** device related part of the code +** +*/ +static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) +{ + return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), + RTL8150_REQ_GET_REGS, RTL8150_REQT_READ, + indx, 0, data, size, 500); +} + +static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) +{ + return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), + RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE, + indx, 0, data, size, 500); +} + +static void ctrl_callback(struct urb *urb, struct pt_regs *regs) +{ + rtl8150_t *dev; + + switch (urb->status) { + case 0: + break; + case -EINPROGRESS: + break; + case -ENOENT: + break; + default: + warn("ctrl urb status %d", urb->status); + } + dev = urb->context; + clear_bit(RX_REG_SET, &dev->flags); +} + +static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size) +{ + int ret; + + if (test_bit(RX_REG_SET, &dev->flags)) + return -EAGAIN; + + dev->dr.bRequestType = RTL8150_REQT_WRITE; + dev->dr.bRequest = RTL8150_REQ_SET_REGS; + dev->dr.wValue = cpu_to_le16(indx); + dev->dr.wIndex = 0; + dev->dr.wLength = cpu_to_le16(size); + dev->ctrl_urb->transfer_buffer_length = size; + usb_fill_control_urb(dev->ctrl_urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr, + &dev->rx_creg, size, ctrl_callback, dev); + if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC))) + err("control request submission failed: %d", ret); + else + set_bit(RX_REG_SET, &dev->flags); + + return ret; +} + +static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg) +{ + int i; + u8 data[3], tmp; + + data[0] = phy; + data[1] = data[2] = 0; + tmp = indx | PHY_READ | PHY_GO; + i = 0; + + set_registers(dev, PHYADD, sizeof(data), data); + set_registers(dev, PHYCNT, 1, &tmp); + do { + get_registers(dev, PHYCNT, 1, data); + } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); + + if (i < MII_TIMEOUT) { + get_registers(dev, PHYDAT, 2, data); + *reg = data[0] | (data[1] << 8); + return 0; + } else + return 1; +} + +static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) +{ + int i; + u8 data[3], tmp; + + data[0] = phy; + *(data + 1) = cpu_to_le16p(®); + tmp = indx | PHY_WRITE | PHY_GO; + i = 0; + + set_registers(dev, PHYADD, sizeof(data), data); + set_registers(dev, PHYCNT, 1, &tmp); + do { + get_registers(dev, PHYCNT, 1, data); + } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); + + if (i < MII_TIMEOUT) + return 0; + else + return 1; +} + +static inline void set_ethernet_addr(rtl8150_t * dev) +{ + u8 node_id[6]; + + get_registers(dev, IDR, sizeof(node_id), node_id); + memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id)); +} + +static int rtl8150_set_mac_address(struct net_device *netdev, void *p) +{ + struct sockaddr *addr = p; + rtl8150_t *dev = netdev_priv(netdev); + int i; + + if (netif_running(netdev)) + return -EBUSY; + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + dbg("%s: Setting MAC address to ", netdev->name); + for (i = 0; i < 5; i++) + dbg("%02X:", netdev->dev_addr[i]); + dbg("%02X\n", netdev->dev_addr[i]); + /* Set the IDR registers. */ + set_registers(dev, IDR, sizeof(netdev->dev_addr), netdev->dev_addr); +#ifdef EEPROM_WRITE + { + u8 cr; + /* Get the CR contents. */ + get_registers(dev, CR, 1, &cr); + /* Set the WEPROM bit (eeprom write enable). */ + cr |= 0x20; + set_registers(dev, CR, 1, &cr); + /* Write the MAC address into eeprom. Eeprom writes must be word-sized, + so we need to split them up. */ + for (i = 0; i * 2 < netdev->addr_len; i++) { + set_registers(dev, IDR_EEPROM + (i * 2), 2, + netdev->dev_addr + (i * 2)); + } + /* Clear the WEPROM bit (preventing accidental eeprom writes). */ + cr &= 0xdf; + set_registers(dev, CR, 1, &cr); + } +#endif + return 0; +} + +static int rtl8150_reset(rtl8150_t * dev) +{ + u8 data = 0x10; + int i = HZ; + + set_registers(dev, CR, 1, &data); + do { + get_registers(dev, CR, 1, &data); + } while ((data & 0x10) && --i); + + return (i > 0) ? 1 : 0; +} + +static int alloc_all_urbs(rtl8150_t * dev) +{ + dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->rx_urb) + return 0; + dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->tx_urb) { + usb_free_urb(dev->rx_urb); + return 0; + } + dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->intr_urb) { + usb_free_urb(dev->rx_urb); + usb_free_urb(dev->tx_urb); + return 0; + } + dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->intr_urb) { + usb_free_urb(dev->rx_urb); + usb_free_urb(dev->tx_urb); + usb_free_urb(dev->intr_urb); + return 0; + } + + return 1; +} + +static void free_all_urbs(rtl8150_t * dev) +{ + usb_free_urb(dev->rx_urb); + usb_free_urb(dev->tx_urb); + usb_free_urb(dev->intr_urb); + usb_free_urb(dev->ctrl_urb); +} + +static void unlink_all_urbs(rtl8150_t * dev) +{ + usb_kill_urb(dev->rx_urb); + usb_kill_urb(dev->tx_urb); + usb_kill_urb(dev->intr_urb); + usb_kill_urb(dev->ctrl_urb); +} + +static inline struct sk_buff *pull_skb(rtl8150_t *dev) +{ + struct sk_buff *skb; + int i; + + for (i = 0; i < RX_SKB_POOL_SIZE; i++) { + if (dev->rx_skb_pool[i]) { + skb = dev->rx_skb_pool[i]; + dev->rx_skb_pool[i] = NULL; + return skb; + } + } + return NULL; +} + +static void read_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + rtl8150_t *dev; + unsigned pkt_len, res; + struct sk_buff *skb; + struct net_device *netdev; + u16 rx_stat; + + dev = urb->context; + if (!dev) + return; + if (test_bit(RTL8150_UNPLUG, &dev->flags)) + return; + netdev = dev->netdev; + if (!netif_device_present(netdev)) + return; + + switch (urb->status) { + case 0: + break; + case -ENOENT: + return; /* the urb is in unlink state */ + case -ETIMEDOUT: + warn("may be reset is needed?.."); + goto goon; + default: + warn("Rx status %d", urb->status); + goto goon; + } + + if (!dev->rx_skb) + goto resched; + /* protect against short packets (tell me why we got some?!?) */ + if (urb->actual_length < 4) + goto goon; + + res = urb->actual_length; + rx_stat = le16_to_cpu(*(__le16 *)(urb->transfer_buffer + res - 4)); + pkt_len = res - 4; + + skb_put(dev->rx_skb, pkt_len); + dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev); + netif_rx(dev->rx_skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += pkt_len; + + spin_lock(&dev->rx_pool_lock); + skb = pull_skb(dev); + spin_unlock(&dev->rx_pool_lock); + if (!skb) + goto resched; + + dev->rx_skb = skb; +goon: + usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), + dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); + if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) { + set_bit(RX_URB_FAIL, &dev->flags); + goto resched; + } else { + clear_bit(RX_URB_FAIL, &dev->flags); + } + + return; +resched: + tasklet_schedule(&dev->tl); +} + +static void rx_fixup(unsigned long data) +{ + rtl8150_t *dev; + struct sk_buff *skb; + + dev = (rtl8150_t *)data; + + spin_lock_irq(&dev->rx_pool_lock); + fill_skb_pool(dev); + spin_unlock_irq(&dev->rx_pool_lock); + if (test_bit(RX_URB_FAIL, &dev->flags)) + if (dev->rx_skb) + goto try_again; + spin_lock_irq(&dev->rx_pool_lock); + skb = pull_skb(dev); + spin_unlock_irq(&dev->rx_pool_lock); + if (skb == NULL) + goto tlsched; + dev->rx_skb = skb; + usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), + dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); +try_again: + if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) { + set_bit(RX_URB_FAIL, &dev->flags); + goto tlsched; + } else { + clear_bit(RX_URB_FAIL, &dev->flags); + } + + return; +tlsched: + tasklet_schedule(&dev->tl); +} + +static void write_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + rtl8150_t *dev; + + dev = urb->context; + if (!dev) + return; + dev_kfree_skb_irq(dev->tx_skb); + if (!netif_device_present(dev->netdev)) + return; + if (urb->status) + info("%s: Tx status %d", dev->netdev->name, urb->status); + dev->netdev->trans_start = jiffies; + netif_wake_queue(dev->netdev); +} + +static void intr_callback(struct urb *urb, struct pt_regs *regs) +{ + rtl8150_t *dev; + __u8 *d; + int status; + + dev = urb->context; + if (!dev) + return; + switch (urb->status) { + case 0: /* success */ + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + /* -EPIPE: should clear the halt */ + default: + info("%s: intr status %d", dev->netdev->name, urb->status); + goto resubmit; + } + + d = urb->transfer_buffer; + if (d[0] & TSR_ERRORS) { + dev->stats.tx_errors++; + if (d[INT_TSR] & (TSR_ECOL | TSR_JBR)) + dev->stats.tx_aborted_errors++; + if (d[INT_TSR] & TSR_LCOL) + dev->stats.tx_window_errors++; + if (d[INT_TSR] & TSR_LOSS_CRS) + dev->stats.tx_carrier_errors++; + } + /* Report link status changes to the network stack */ + if ((d[INT_MSR] & MSR_LINK) == 0) { + if (netif_carrier_ok(dev->netdev)) { + netif_carrier_off(dev->netdev); + dbg("%s: LINK LOST\n", __func__); + } + } else { + if (!netif_carrier_ok(dev->netdev)) { + netif_carrier_on(dev->netdev); + dbg("%s: LINK CAME BACK\n", __func__); + } + } + +resubmit: + status = usb_submit_urb (urb, SLAB_ATOMIC); + if (status) + err ("can't resubmit intr, %s-%s/input0, status %d", + dev->udev->bus->bus_name, + dev->udev->devpath, status); +} + + +/* +** +** network related part of the code +** +*/ + +static void fill_skb_pool(rtl8150_t *dev) +{ + struct sk_buff *skb; + int i; + + for (i = 0; i < RX_SKB_POOL_SIZE; i++) { + if (dev->rx_skb_pool[i]) + continue; + skb = dev_alloc_skb(RTL8150_MTU + 2); + if (!skb) { + return; + } + skb->dev = dev->netdev; + skb_reserve(skb, 2); + dev->rx_skb_pool[i] = skb; + } +} + +static void free_skb_pool(rtl8150_t *dev) +{ + int i; + + for (i = 0; i < RX_SKB_POOL_SIZE; i++) + if (dev->rx_skb_pool[i]) + dev_kfree_skb(dev->rx_skb_pool[i]); +} + +static int enable_net_traffic(rtl8150_t * dev) +{ + u8 cr, tcr, rcr, msr; + + if (!rtl8150_reset(dev)) { + warn("%s - device reset failed", __FUNCTION__); + } + /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */ + rcr = 0x9e; + dev->rx_creg = cpu_to_le16(rcr); + tcr = 0xd8; + cr = 0x0c; + if (!(rcr & 0x80)) + set_bit(RTL8150_HW_CRC, &dev->flags); + set_registers(dev, RCR, 1, &rcr); + set_registers(dev, TCR, 1, &tcr); + set_registers(dev, CR, 1, &cr); + get_registers(dev, MSR, 1, &msr); + + return 0; +} + +static void disable_net_traffic(rtl8150_t * dev) +{ + u8 cr; + + get_registers(dev, CR, 1, &cr); + cr &= 0xf3; + set_registers(dev, CR, 1, &cr); +} + +static struct net_device_stats *rtl8150_netdev_stats(struct net_device *dev) +{ + return &((rtl8150_t *)netdev_priv(dev))->stats; +} + +static void rtl8150_tx_timeout(struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + warn("%s: Tx timeout.", netdev->name); + dev->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; + usb_unlink_urb(dev->tx_urb); + dev->stats.tx_errors++; +} + +static void rtl8150_set_multicast(struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + netif_stop_queue(netdev); + if (netdev->flags & IFF_PROMISC) { + dev->rx_creg |= cpu_to_le16(0x0001); + info("%s: promiscuous mode", netdev->name); + } else if ((netdev->mc_count > multicast_filter_limit) || + (netdev->flags & IFF_ALLMULTI)) { + dev->rx_creg &= cpu_to_le16(0xfffe); + dev->rx_creg |= cpu_to_le16(0x0002); + info("%s: allmulti set", netdev->name); + } else { + /* ~RX_MULTICAST, ~RX_PROMISCUOUS */ + dev->rx_creg &= cpu_to_le16(0x00fc); + } + async_set_registers(dev, RCR, 2); + netif_wake_queue(netdev); +} + +static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + int count, res; + + netif_stop_queue(netdev); + count = (skb->len < 60) ? 60 : skb->len; + count = (count & 0x3f) ? count : count + 1; + dev->tx_skb = skb; + usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), + skb->data, count, write_bulk_callback, dev); + if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) { + warn("failed tx_urb %d\n", res); + dev->stats.tx_errors++; + netif_start_queue(netdev); + } else { + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + netdev->trans_start = jiffies; + } + + return 0; +} + + +static void set_carrier(struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + short tmp; + + get_registers(dev, CSCR, 2, &tmp); + if (tmp & CSCR_LINK_STATUS) + netif_carrier_on(netdev); + else + netif_carrier_off(netdev); +} + +static int rtl8150_open(struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + int res; + + if (dev->rx_skb == NULL) + dev->rx_skb = pull_skb(dev); + if (!dev->rx_skb) + return -ENOMEM; + + set_registers(dev, IDR, 6, netdev->dev_addr); + + usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), + dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); + if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) + warn("%s: rx_urb submit failed: %d", __FUNCTION__, res); + usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3), + dev->intr_buff, INTBUFSIZE, intr_callback, + dev, dev->intr_interval); + if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) + warn("%s: intr_urb submit failed: %d", __FUNCTION__, res); + netif_start_queue(netdev); + enable_net_traffic(dev); + set_carrier(netdev); + + return res; +} + +static int rtl8150_close(struct net_device *netdev) +{ + rtl8150_t *dev = netdev_priv(netdev); + int res = 0; + + netif_stop_queue(netdev); + if (!test_bit(RTL8150_UNPLUG, &dev->flags)) + disable_net_traffic(dev); + unlink_all_urbs(dev); + + return res; +} + +static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info) +{ + rtl8150_t *dev = netdev_priv(netdev); + + strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); + strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); + usb_make_path(dev->udev, info->bus_info, sizeof info->bus_info); +} + +static int rtl8150_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) +{ + rtl8150_t *dev = netdev_priv(netdev); + short lpa, bmcr; + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_Autoneg | + SUPPORTED_TP | SUPPORTED_MII); + ecmd->port = PORT_TP; + ecmd->transceiver = XCVR_INTERNAL; + ecmd->phy_address = dev->phy; + get_registers(dev, BMCR, 2, &bmcr); + get_registers(dev, ANLP, 2, &lpa); + if (bmcr & BMCR_ANENABLE) { + ecmd->autoneg = AUTONEG_ENABLE; + ecmd->speed = (lpa & (LPA_100HALF | LPA_100FULL)) ? + SPEED_100 : SPEED_10; + if (ecmd->speed == SPEED_100) + ecmd->duplex = (lpa & LPA_100FULL) ? + DUPLEX_FULL : DUPLEX_HALF; + else + ecmd->duplex = (lpa & LPA_10FULL) ? + DUPLEX_FULL : DUPLEX_HALF; + } else { + ecmd->autoneg = AUTONEG_DISABLE; + ecmd->speed = (bmcr & BMCR_SPEED100) ? + SPEED_100 : SPEED_10; + ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? + DUPLEX_FULL : DUPLEX_HALF; + } + return 0; +} + +static struct ethtool_ops ops = { + .get_drvinfo = rtl8150_get_drvinfo, + .get_settings = rtl8150_get_settings, + .get_link = ethtool_op_get_link +}; + +static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) +{ + rtl8150_t *dev = netdev_priv(netdev); + u16 *data = (u16 *) & rq->ifr_ifru; + int res = 0; + + switch (cmd) { + case SIOCDEVPRIVATE: + data[0] = dev->phy; + case SIOCDEVPRIVATE + 1: + read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]); + break; + case SIOCDEVPRIVATE + 2: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]); + break; + default: + res = -EOPNOTSUPP; + } + + return res; +} + +static int rtl8150_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + rtl8150_t *dev; + struct net_device *netdev; + + netdev = alloc_etherdev(sizeof(rtl8150_t)); + if (!netdev) { + err("Out of memory"); + return -ENOMEM; + } + + dev = netdev_priv(netdev); + memset(dev, 0, sizeof(rtl8150_t)); + + dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL); + if (!dev->intr_buff) { + free_netdev(netdev); + return -ENOMEM; + } + + tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev); + spin_lock_init(&dev->rx_pool_lock); + + dev->udev = udev; + dev->netdev = netdev; + SET_MODULE_OWNER(netdev); + netdev->open = rtl8150_open; + netdev->stop = rtl8150_close; + netdev->do_ioctl = rtl8150_ioctl; + netdev->watchdog_timeo = RTL8150_TX_TIMEOUT; + netdev->tx_timeout = rtl8150_tx_timeout; + netdev->hard_start_xmit = rtl8150_start_xmit; + netdev->set_multicast_list = rtl8150_set_multicast; + netdev->set_mac_address = rtl8150_set_mac_address; + netdev->get_stats = rtl8150_netdev_stats; + netdev->mtu = RTL8150_MTU; + SET_ETHTOOL_OPS(netdev, &ops); + dev->intr_interval = 100; /* 100ms */ + + if (!alloc_all_urbs(dev)) { + err("out of memory"); + goto out; + } + if (!rtl8150_reset(dev)) { + err("couldn't reset the device"); + goto out1; + } + fill_skb_pool(dev); + set_ethernet_addr(dev); + info("%s: rtl8150 is detected", netdev->name); + + usb_set_intfdata(intf, dev); + SET_NETDEV_DEV(netdev, &intf->dev); + if (register_netdev(netdev) != 0) { + err("couldn't register the device"); + goto out2; + } + return 0; + +out2: + usb_set_intfdata(intf, NULL); + free_skb_pool(dev); +out1: + free_all_urbs(dev); +out: + kfree(dev->intr_buff); + free_netdev(netdev); + return -EIO; +} + +static void rtl8150_disconnect(struct usb_interface *intf) +{ + rtl8150_t *dev = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + if (dev) { + set_bit(RTL8150_UNPLUG, &dev->flags); + unregister_netdev(dev->netdev); + unlink_all_urbs(dev); + free_all_urbs(dev); + free_skb_pool(dev); + if (dev->rx_skb) + dev_kfree_skb(dev->rx_skb); + kfree(dev->intr_buff); + free_netdev(dev->netdev); + } +} + +static int __init usb_rtl8150_init(void) +{ + info(DRIVER_DESC " " DRIVER_VERSION); + return usb_register(&rtl8150_driver); +} + +static void __exit usb_rtl8150_exit(void) +{ + usb_deregister(&rtl8150_driver); +} + +module_init(usb_rtl8150_init); +module_exit(usb_rtl8150_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c new file mode 100644 index 00000000000..dd8b4456ea3 --- /dev/null +++ b/drivers/usb/net/usbnet.c @@ -0,0 +1,4106 @@ +/* + * USB Networking Links + * Copyright (C) 2000-2003 by David Brownell <dbrownell@users.sourceforge.net> + * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> + * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> + * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> + * Copyright (c) 2002-2003 TiVo Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * This is a generic "USB networking" framework that works with several + * kinds of full and high speed networking devices: + * + * + USB host-to-host "network cables", used for IP-over-USB links. + * These are often used for Laplink style connectivity products. + * - AnchorChip 2720 + * - Belkin, eTEK (interops with Win32 drivers) + * - GeneSys GL620USB-A + * - NetChip 1080 (interoperates with NetChip Win32 drivers) + * - Prolific PL-2301/2302 (replaces "plusb" driver) + * - KC Technology KC2190 + * + * + Smart USB devices can support such links directly, using Internet + * standard protocols instead of proprietary host-to-device links. + * - Linux PDAs like iPaq, Yopy, and Zaurus + * - The BLOB boot loader (for diskless booting) + * - Linux "gadgets", perhaps using PXA-2xx or Net2280 controllers + * - Devices using EPSON's sample USB firmware + * - CDC-Ethernet class devices, such as many cable modems + * + * + Adapters to networks such as Ethernet. + * - AX8817X based USB 2.0 products + * + * Links to these devices can be bridged using Linux Ethernet bridging. + * With minor exceptions, these all use similar USB framing for network + * traffic, but need different protocols for control traffic. + * + * USB devices can implement their side of this protocol at the cost + * of two bulk endpoints; it's not restricted to "cable" applications. + * See the SA1110, Zaurus, or EPSON device/client support in this driver; + * slave/target drivers such as "usb-eth" (on most SA-1100 PDAs) or + * "g_ether" (in the Linux "gadget" framework) implement that behavior + * within devices. + * + * + * CHANGELOG: + * + * 13-sep-2000 experimental, new + * 10-oct-2000 usb_device_id table created. + * 28-oct-2000 misc fixes; mostly, discard more TTL-mangled rx packets. + * 01-nov-2000 usb_device_id table and probing api update by + * Adam J. Richter <adam@yggdrasil.com>. + * 18-dec-2000 (db) tx watchdog, "net1080" renaming to "usbnet", device_info + * and prolific support, isolate net1080-specific bits, cleanup. + * fix unlink_urbs oops in D3 PM resume code path. + * + * 02-feb-2001 (db) fix tx skb sharing, packet length, match_flags, ... + * 08-feb-2001 stubbed in "linuxdev", maybe the SA-1100 folk can use it; + * AnchorChips 2720 support (from spec) for testing; + * fix bit-ordering problem with ethernet multicast addr + * 19-feb-2001 Support for clearing halt conditions. SA1100 UDC support + * updates. Oleg Drokin (green@iXcelerator.com) + * 25-mar-2001 More SA-1100 updates, including workaround for ip problem + * expecting cleared skb->cb and framing change to match latest + * handhelds.org version (Oleg). Enable device IDs from the + * Win32 Belkin driver; other cleanups (db). + * 16-jul-2001 Bugfixes for uhci oops-on-unplug, Belkin support, various + * cleanups for problems not yet seen in the field. (db) + * 17-oct-2001 Handle "Advance USBNET" product, like Belkin/eTEK devices, + * from Ioannis Mavroukakis <i.mavroukakis@btinternet.com>; + * rx unlinks somehow weren't async; minor cleanup. + * 03-nov-2001 Merged GeneSys driver; original code from Jiun-Jie Huang + * <huangjj@genesyslogic.com.tw>, updated by Stanislav Brabec + * <utx@penguin.cz>. Made framing options (NetChip/GeneSys) + * tie mostly to (sub)driver info. Workaround some PL-2302 + * chips that seem to reject SET_INTERFACE requests. + * + * 06-apr-2002 Added ethtool support, based on a patch from Brad Hards. + * Level of diagnostics is more configurable; they use device + * location (usb_device->devpath) instead of address (2.5). + * For tx_fixup, memflags can't be NOIO. + * 07-may-2002 Generalize/cleanup keventd support, handling rx stalls (mostly + * for USB 2.0 TTs) and memory shortages (potential) too. (db) + * Use "locally assigned" IEEE802 address space. (Brad Hards) + * 18-oct-2002 Support for Zaurus (Pavel Machek), related cleanup (db). + * 14-dec-2002 Remove Zaurus-private crc32 code (Pavel); 2.5 oops fix, + * cleanups and stubbed PXA-250 support (db), fix for framing + * issues on Z, net1080, and gl620a (Toby Milne) + * + * 31-mar-2003 Use endpoint descriptors: high speed support, simpler sa1100 + * vs pxa25x, and CDC Ethernet. Throttle down log floods on + * disconnect; other cleanups. (db) Flush net1080 fifos + * after several sequential framing errors. (Johannes Erdfelt) + * 22-aug-2003 AX8817X support (Dave Hollis). + * 14-jun-2004 Trivial patch for AX8817X based Buffalo LUA-U2-KTX in Japan + * (Neil Bortnak) + * 03-nov-2004 Trivial patch for KC2190 (KC-190) chip. (Jonathan McDowell) + * + * 01-feb-2005 AX88772 support (Phil Chang & Dave Hollis) + *-------------------------------------------------------------------------*/ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/kmod.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/random.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <asm/uaccess.h> +#include <asm/unaligned.h> +#include <linux/usb.h> +#include <asm/io.h> +#include <asm/scatterlist.h> +#include <linux/mm.h> +#include <linux/dma-mapping.h> + +#define DRIVER_VERSION "03-Nov-2004" + + +/*-------------------------------------------------------------------------*/ + +/* + * Nineteen USB 1.1 max size bulk transactions per frame (ms), max. + * Several dozen bytes of IPv4 data can fit in two such transactions. + * One maximum size Ethernet packet takes twenty four of them. + * For high speed, each frame comfortably fits almost 36 max size + * Ethernet packets (so queues should be bigger). + */ +#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) +#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) + +// packets are always ethernet inside +// ... except they can be bigger (limit of 64K with NetChip framing) +#define MIN_PACKET sizeof(struct ethhdr) +#define MAX_PACKET 32768 + +// reawaken network queue this soon after stopping; else watchdog barks +#define TX_TIMEOUT_JIFFIES (5*HZ) + +// throttle rx/tx briefly after some faults, so khubd might disconnect() +// us (it polls at HZ/4 usually) before we report too many false errors. +#define THROTTLE_JIFFIES (HZ/8) + +// for vendor-specific control operations +#define CONTROL_TIMEOUT_MS 500 + +// between wakeups +#define UNLINK_TIMEOUT_MS 3 + +/*-------------------------------------------------------------------------*/ + +// randomly generated ethernet address +static u8 node_id [ETH_ALEN]; + +// state we keep for each device we handle +struct usbnet { + // housekeeping + struct usb_device *udev; + struct driver_info *driver_info; + wait_queue_head_t *wait; + + // i/o info: pipes etc + unsigned in, out; + struct usb_host_endpoint *status; + unsigned maxpacket; + struct timer_list delay; + + // protocol/interface state + struct net_device *net; + struct net_device_stats stats; + int msg_enable; + unsigned long data [5]; + + struct mii_if_info mii; + + // various kinds of pending driver work + struct sk_buff_head rxq; + struct sk_buff_head txq; + struct sk_buff_head done; + struct urb *interrupt; + struct tasklet_struct bh; + + struct work_struct kevent; + unsigned long flags; +# define EVENT_TX_HALT 0 +# define EVENT_RX_HALT 1 +# define EVENT_RX_MEMORY 2 +# define EVENT_STS_SPLIT 3 +}; + +// device-specific info used by the driver +struct driver_info { + char *description; + + int flags; +/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */ +#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */ +#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */ +#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */ +#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */ + +#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */ +#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */ + +#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */ + + /* init device ... can sleep, or cause probe() failure */ + int (*bind)(struct usbnet *, struct usb_interface *); + + /* cleanup device ... can sleep, but can't fail */ + void (*unbind)(struct usbnet *, struct usb_interface *); + + /* reset device ... can sleep */ + int (*reset)(struct usbnet *); + + /* see if peer is connected ... can sleep */ + int (*check_connect)(struct usbnet *); + + /* for status polling */ + void (*status)(struct usbnet *, struct urb *); + + /* fixup rx packet (strip framing) */ + int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb); + + /* fixup tx packet (add framing) */ + struct sk_buff *(*tx_fixup)(struct usbnet *dev, + struct sk_buff *skb, int flags); + + // FIXME -- also an interrupt mechanism + // useful for at least PL2301/2302 and GL620USB-A + // and CDC use them to report 'is it connected' changes + + /* for new devices, use the descriptor-reading code instead */ + int in; /* rx endpoint */ + int out; /* tx endpoint */ + + unsigned long data; /* Misc driver specific data */ +}; + +// we record the state for each of our queued skbs +enum skb_state { + illegal = 0, + tx_start, tx_done, + rx_start, rx_done, rx_cleanup +}; + +struct skb_data { // skb->cb is one of these + struct urb *urb; + struct usbnet *dev; + enum skb_state state; + size_t length; +}; + +static const char driver_name [] = "usbnet"; + +/* use ethtool to change the level for any given device */ +static int msg_level = -1; +module_param (msg_level, int, 0); +MODULE_PARM_DESC (msg_level, "Override default message level"); + + +#ifdef DEBUG +#define devdbg(usbnet, fmt, arg...) \ + printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg) +#else +#define devdbg(usbnet, fmt, arg...) do {} while(0) +#endif + +#define deverr(usbnet, fmt, arg...) \ + printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg) +#define devwarn(usbnet, fmt, arg...) \ + printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg) + +#define devinfo(usbnet, fmt, arg...) \ + printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \ + +/*-------------------------------------------------------------------------*/ + +static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *); +static u32 usbnet_get_link (struct net_device *); +static u32 usbnet_get_msglevel (struct net_device *); +static void usbnet_set_msglevel (struct net_device *, u32); + +/* mostly for PDA style devices, which are always connected if present */ +static int always_connected (struct usbnet *dev) +{ + return 0; +} + +/* handles CDC Ethernet and many other network "bulk data" interfaces */ +static int +get_endpoints (struct usbnet *dev, struct usb_interface *intf) +{ + int tmp; + struct usb_host_interface *alt = NULL; + struct usb_host_endpoint *in = NULL, *out = NULL; + struct usb_host_endpoint *status = NULL; + + for (tmp = 0; tmp < intf->num_altsetting; tmp++) { + unsigned ep; + + in = out = status = NULL; + alt = intf->altsetting + tmp; + + /* take the first altsetting with in-bulk + out-bulk; + * remember any status endpoint, just in case; + * ignore other endpoints and altsetttings. + */ + for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { + struct usb_host_endpoint *e; + int intr = 0; + + e = alt->endpoint + ep; + switch (e->desc.bmAttributes) { + case USB_ENDPOINT_XFER_INT: + if (!(e->desc.bEndpointAddress & USB_DIR_IN)) + continue; + intr = 1; + /* FALLTHROUGH */ + case USB_ENDPOINT_XFER_BULK: + break; + default: + continue; + } + if (e->desc.bEndpointAddress & USB_DIR_IN) { + if (!intr && !in) + in = e; + else if (intr && !status) + status = e; + } else { + if (!out) + out = e; + } + } + if (in && out) + break; + } + if (!alt || !in || !out) + return -EINVAL; + + if (alt->desc.bAlternateSetting != 0 + || !(dev->driver_info->flags & FLAG_NO_SETINT)) { + tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber, + alt->desc.bAlternateSetting); + if (tmp < 0) + return tmp; + } + + dev->in = usb_rcvbulkpipe (dev->udev, + in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + dev->out = usb_sndbulkpipe (dev->udev, + out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); + dev->status = status; + return 0; +} + +static void intr_complete (struct urb *urb, struct pt_regs *regs); + +static int init_status (struct usbnet *dev, struct usb_interface *intf) +{ + char *buf = NULL; + unsigned pipe = 0; + unsigned maxp; + unsigned period; + + if (!dev->driver_info->status) + return 0; + + pipe = usb_rcvintpipe (dev->udev, + dev->status->desc.bEndpointAddress + & USB_ENDPOINT_NUMBER_MASK); + maxp = usb_maxpacket (dev->udev, pipe, 0); + + /* avoid 1 msec chatter: min 8 msec poll rate */ + period = max ((int) dev->status->desc.bInterval, + (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); + + buf = kmalloc (maxp, SLAB_KERNEL); + if (buf) { + dev->interrupt = usb_alloc_urb (0, SLAB_KERNEL); + if (!dev->interrupt) { + kfree (buf); + return -ENOMEM; + } else { + usb_fill_int_urb(dev->interrupt, dev->udev, pipe, + buf, maxp, intr_complete, dev, period); + dev_dbg(&intf->dev, + "status ep%din, %d bytes period %d\n", + usb_pipeendpoint(pipe), maxp, period); + } + } + return 0; +} + +static void skb_return (struct usbnet *dev, struct sk_buff *skb) +{ + int status; + + skb->dev = dev->net; + skb->protocol = eth_type_trans (skb, dev->net); + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + + if (netif_msg_rx_status (dev)) + devdbg (dev, "< rx, len %d, type 0x%x", + skb->len + sizeof (struct ethhdr), skb->protocol); + memset (skb->cb, 0, sizeof (struct skb_data)); + status = netif_rx (skb); + if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev)) + devdbg (dev, "netif_rx status %d", status); +} + + +#ifdef CONFIG_USB_ALI_M5632 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * ALi M5632 driver ... does high speed + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info ali_m5632_info = { + .description = "ALi M5632", +}; + + +#endif + + +#ifdef CONFIG_USB_AN2720 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * AnchorChips 2720 driver ... http://www.cypress.com + * + * This doesn't seem to have a way to detect whether the peer is + * connected, or need any reset handshaking. It's got pretty big + * internal buffers (handles most of a frame's worth of data). + * Chip data sheets don't describe any vendor control messages. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info an2720_info = { + .description = "AnchorChips/Cypress 2720", + // no reset available! + // no check_connect available! + + .in = 2, .out = 2, // direction distinguishes these +}; + +#endif /* CONFIG_USB_AN2720 */ + + +#ifdef CONFIG_USB_AX8817X +/* ASIX AX8817X based USB 2.0 Ethernet Devices */ + +#define HAVE_HARDWARE +#define NEED_MII + +#include <linux/crc32.h> + +#define AX_CMD_SET_SW_MII 0x06 +#define AX_CMD_READ_MII_REG 0x07 +#define AX_CMD_WRITE_MII_REG 0x08 +#define AX_CMD_SET_HW_MII 0x0a +#define AX_CMD_READ_EEPROM 0x0b +#define AX_CMD_WRITE_EEPROM 0x0c +#define AX_CMD_WRITE_ENABLE 0x0d +#define AX_CMD_WRITE_DISABLE 0x0e +#define AX_CMD_WRITE_RX_CTL 0x10 +#define AX_CMD_READ_IPG012 0x11 +#define AX_CMD_WRITE_IPG0 0x12 +#define AX_CMD_WRITE_IPG1 0x13 +#define AX_CMD_WRITE_IPG2 0x14 +#define AX_CMD_WRITE_MULTI_FILTER 0x16 +#define AX_CMD_READ_NODE_ID 0x17 +#define AX_CMD_READ_PHY_ID 0x19 +#define AX_CMD_WRITE_MEDIUM_MODE 0x1b +#define AX_CMD_READ_MONITOR_MODE 0x1c +#define AX_CMD_WRITE_MONITOR_MODE 0x1d +#define AX_CMD_WRITE_GPIOS 0x1f +#define AX_CMD_SW_RESET 0x20 +#define AX_CMD_SW_PHY_STATUS 0x21 +#define AX_CMD_SW_PHY_SELECT 0x22 +#define AX88772_CMD_READ_NODE_ID 0x13 + +#define AX_MONITOR_MODE 0x01 +#define AX_MONITOR_LINK 0x02 +#define AX_MONITOR_MAGIC 0x04 +#define AX_MONITOR_HSFS 0x10 + +#define AX_MCAST_FILTER_SIZE 8 +#define AX_MAX_MCAST 64 + +#define AX_INTERRUPT_BUFSIZE 8 + +#define AX_EEPROM_LEN 0x40 + +#define AX_SWRESET_CLEAR 0x00 +#define AX_SWRESET_RR 0x01 +#define AX_SWRESET_RT 0x02 +#define AX_SWRESET_PRTE 0x04 +#define AX_SWRESET_PRL 0x08 +#define AX_SWRESET_BZ 0x10 +#define AX_SWRESET_IPRL 0x20 +#define AX_SWRESET_IPPD 0x40 + +#define AX88772_IPG0_DEFAULT 0x15 +#define AX88772_IPG1_DEFAULT 0x0c +#define AX88772_IPG2_DEFAULT 0x12 + +#define AX_EEPROM_MAGIC 0xdeadbeef + +/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ +struct ax8817x_data { + u8 multi_filter[AX_MCAST_FILTER_SIZE]; + struct urb *int_urb; + u8 *int_buf; +}; + +static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + return usb_control_msg( + dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + cmd, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + data, + size, + CONTROL_TIMEOUT_MS); +} + +static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + return usb_control_msg( + dev->udev, + usb_sndctrlpipe(dev->udev, 0), + cmd, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + data, + size, + CONTROL_TIMEOUT_MS); +} + +static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; + + if (urb->status < 0) + printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d", + urb->status); + + kfree(req); + usb_free_urb(urb); +} + +static void ax8817x_interrupt_complete(struct urb *urb, struct pt_regs *regs) +{ + struct usbnet *dev = (struct usbnet *)urb->context; + struct ax8817x_data *data = (struct ax8817x_data *)&dev->data; + int link; + + if (urb->status < 0) { + devdbg(dev,"ax8817x_interrupt_complete() failed with %d", + urb->status); + } else { + link = data->int_buf[2] & 0x01; + if (netif_carrier_ok(dev->net) != link) { + if (link) + netif_carrier_on(dev->net); + else + netif_carrier_off(dev->net); + devdbg(dev, "ax8817x - Link Status is: %d", link); + } + usb_submit_urb(data->int_urb, GFP_ATOMIC); + } +} + +static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + struct usb_ctrlrequest *req; + int status; + struct urb *urb; + + if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { + devdbg(dev, "Error allocating URB in write_cmd_async!"); + return; + } + + if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { + deverr(dev, "Failed to allocate memory for control request"); + usb_free_urb(urb); + return; + } + + req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; + req->bRequest = cmd; + req->wValue = cpu_to_le16(value); + req->wIndex = cpu_to_le16(index); + req->wLength = cpu_to_le16(size); + + usb_fill_control_urb(urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), + (void *)req, data, size, + ax8817x_async_cmd_callback, req); + + if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + deverr(dev, "Error submitting the control message: status=%d", status); + kfree(req); + usb_free_urb(urb); + } +} + +static void ax8817x_set_multicast(struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + struct ax8817x_data *data = (struct ax8817x_data *)&dev->data; + u8 rx_ctl = 0x8c; + + if (net->flags & IFF_PROMISC) { + rx_ctl |= 0x01; + } else if (net->flags & IFF_ALLMULTI + || net->mc_count > AX_MAX_MCAST) { + rx_ctl |= 0x02; + } else if (net->mc_count == 0) { + /* just broadcast and directed */ + } else { + /* We use the 20 byte dev->data + * for our 8 byte filter buffer + * to avoid allocating memory that + * is tricky to free later */ + struct dev_mc_list *mc_list = net->mc_list; + u32 crc_bits; + int i; + + memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); + + /* Build the multicast hash filter. */ + for (i = 0; i < net->mc_count; i++) { + crc_bits = + ether_crc(ETH_ALEN, + mc_list->dmi_addr) >> 26; + data->multi_filter[crc_bits >> 3] |= + 1 << (crc_bits & 7); + mc_list = mc_list->next; + } + + ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, + AX_MCAST_FILTER_SIZE, data->multi_filter); + + rx_ctl |= 0x10; + } + + ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); +} + +static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc) +{ + struct usbnet *dev = netdev_priv(netdev); + u16 res; + u8 buf[1]; + + ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); + ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); + + return res & 0xffff; +} + +static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) +{ + struct usbnet *dev = netdev_priv(netdev); + u16 res = val; + u8 buf[1]; + + ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); + ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); +} + +static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) +{ + struct usbnet *dev = netdev_priv(net); + u8 opt; + + if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { + wolinfo->supported = 0; + wolinfo->wolopts = 0; + return; + } + wolinfo->supported = WAKE_PHY | WAKE_MAGIC; + wolinfo->wolopts = 0; + if (opt & AX_MONITOR_MODE) { + if (opt & AX_MONITOR_LINK) + wolinfo->wolopts |= WAKE_PHY; + if (opt & AX_MONITOR_MAGIC) + wolinfo->wolopts |= WAKE_MAGIC; + } +} + +static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) +{ + struct usbnet *dev = netdev_priv(net); + u8 opt = 0; + u8 buf[1]; + + if (wolinfo->wolopts & WAKE_PHY) + opt |= AX_MONITOR_LINK; + if (wolinfo->wolopts & WAKE_MAGIC) + opt |= AX_MONITOR_MAGIC; + if (opt != 0) + opt |= AX_MONITOR_MODE; + + if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, + opt, 0, 0, &buf) < 0) + return -EINVAL; + + return 0; +} + +static int ax8817x_get_eeprom_len(struct net_device *net) +{ + return AX_EEPROM_LEN; +} + +static int ax8817x_get_eeprom(struct net_device *net, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct usbnet *dev = netdev_priv(net); + u16 *ebuf = (u16 *)data; + int i; + + /* Crude hack to ensure that we don't overwrite memory + * if an odd length is supplied + */ + if (eeprom->len % 2) + return -EINVAL; + + eeprom->magic = AX_EEPROM_MAGIC; + + /* ax8817x returns 2 bytes from eeprom on read */ + for (i=0; i < eeprom->len / 2; i++) { + if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM, + eeprom->offset + i, 0, 2, &ebuf[i]) < 0) + return -EINVAL; + } + return 0; +} + +static void ax8817x_get_drvinfo (struct net_device *net, + struct ethtool_drvinfo *info) +{ + /* Inherit standard device info */ + usbnet_get_drvinfo(net, info); + info->eedump_len = 0x3e; +} + +static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_ethtool_gset(&dev->mii,cmd); +} + +static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_ethtool_sset(&dev->mii,cmd); +} + +/* We need to override some ethtool_ops so we require our + own structure so we don't interfere with other usbnet + devices that may be connected at the same time. */ +static struct ethtool_ops ax8817x_ethtool_ops = { + .get_drvinfo = ax8817x_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, + .get_wol = ax8817x_get_wol, + .set_wol = ax8817x_set_wol, + .get_eeprom_len = ax8817x_get_eeprom_len, + .get_eeprom = ax8817x_get_eeprom, + .get_settings = ax8817x_get_settings, + .set_settings = ax8817x_set_settings, +}; + +static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret = 0; + void *buf; + int i; + unsigned long gpio_bits = dev->driver_info->data; + struct ax8817x_data *data = (struct ax8817x_data *)dev->data; + + get_endpoints(dev,intf); + + if ((data->int_urb = usb_alloc_urb (0, GFP_KERNEL)) == NULL) { + dbg ("%s: cannot allocate interrupt URB", + dev->net->name); + ret = -ENOMEM; + goto out1; + } + + if ((data->int_buf = kmalloc(AX_INTERRUPT_BUFSIZE, GFP_KERNEL)) == NULL) { + dbg ("%s: cannot allocate memory for interrupt buffer", + dev->net->name); + ret = -ENOMEM; + goto out1; + } + memset(data->int_buf, 0, AX_INTERRUPT_BUFSIZE); + + usb_fill_int_urb (data->int_urb, dev->udev, + usb_rcvintpipe (dev->udev, 1), + data->int_buf, AX_INTERRUPT_BUFSIZE, + ax8817x_interrupt_complete, dev, + dev->udev->speed == USB_SPEED_HIGH ? 8 : 100); + + buf = kmalloc(ETH_ALEN, GFP_KERNEL); + if(!buf) { + ret = -ENOMEM; + goto out2; + } + + /* Toggle the GPIOs in a manufacturer/model specific way */ + for (i = 2; i >= 0; i--) { + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, + (gpio_bits >> (i * 8)) & 0xff, 0, 0, + buf)) < 0) + goto out3; + msleep(5); + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) { + dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret); + goto out3; + } + + /* Get the MAC address */ + memset(buf, 0, ETH_ALEN); + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) { + dbg("read AX_CMD_READ_NODE_ID failed: %d", ret); + goto out3; + } + memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + /* Get the PHY id */ + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { + dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret); + goto out3; + } else if (ret < 2) { + /* this should always return 2 bytes */ + dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret); + ret = -EIO; + goto out3; + } + + /* Initialize MII structure */ + dev->mii.dev = dev->net; + dev->mii.mdio_read = ax8817x_mdio_read; + dev->mii.mdio_write = ax8817x_mdio_write; + dev->mii.phy_id_mask = 0x3f; + dev->mii.reg_num_mask = 0x1f; + dev->mii.phy_id = *((u8 *)buf + 1); + + dev->net->set_multicast_list = ax8817x_set_multicast; + dev->net->ethtool_ops = &ax8817x_ethtool_ops; + + ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, + cpu_to_le16(BMCR_RESET)); + ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, + cpu_to_le16(ADVERTISE_ALL | ADVERTISE_CSMA | 0x0400)); + mii_nway_restart(&dev->mii); + + if((ret = usb_submit_urb(data->int_urb, GFP_KERNEL)) < 0) { + dbg("Failed to submit interrupt URB: %02x", ret); + goto out2; + } + + return 0; +out3: + kfree(buf); +out2: + kfree(data->int_buf); +out1: + usb_free_urb(data->int_urb); + return ret; +} + +static void ax8817x_unbind(struct usbnet *dev, struct usb_interface *intf) +{ + struct ax8817x_data *data = (struct ax8817x_data *)dev->data; + + usb_kill_urb(data->int_urb); + usb_free_urb(data->int_urb); + kfree(data->int_buf); +} + +static struct ethtool_ops ax88772_ethtool_ops = { + .get_drvinfo = ax8817x_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, + .get_wol = ax8817x_get_wol, + .set_wol = ax8817x_set_wol, + .get_eeprom_len = ax8817x_get_eeprom_len, + .get_eeprom = ax8817x_get_eeprom, + .get_settings = ax8817x_get_settings, + .set_settings = ax8817x_set_settings, +}; + +static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret; + void *buf; + struct ax8817x_data *data = (struct ax8817x_data *)dev->data; + + get_endpoints(dev,intf); + + if ((data->int_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) { + dbg ("Cannot allocate interrupt URB"); + ret = -ENOMEM; + goto out1; + } + + if ((data->int_buf = kmalloc(AX_INTERRUPT_BUFSIZE, GFP_KERNEL)) == NULL) { + dbg ("Cannot allocate memory for interrupt buffer"); + ret = -ENOMEM; + goto out1; + } + memset(data->int_buf, 0, AX_INTERRUPT_BUFSIZE); + + usb_fill_int_urb (data->int_urb, dev->udev, + usb_rcvintpipe (dev->udev, 1), + data->int_buf, AX_INTERRUPT_BUFSIZE, + ax8817x_interrupt_complete, dev, + dev->udev->speed == USB_SPEED_HIGH ? 8 : 100); + + buf = kmalloc(6, GFP_KERNEL); + if(!buf) { + dbg ("Cannot allocate memory for buffer"); + ret = -ENOMEM; + goto out2; + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, + 0x00B0, 0, 0, buf)) < 0) + goto out3; + + msleep(5); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) { + dbg("Select PHY #1 failed: %d", ret); + goto out3; + } + + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) { + dbg("Failed to power down internal PHY: %d", ret); + goto out3; + } + + msleep(150); + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) { + dbg("Failed to perform software reset: %d", ret); + goto out3; + } + + msleep(150); + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { + dbg("Failed to set Internal/External PHY reset control: %d", ret); + goto out3; + } + + msleep(150); + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0, + buf)) < 0) { + dbg("Failed to reset RX_CTL: %d", ret); + goto out3; + } + + /* Get the MAC address */ + memset(buf, 0, ETH_ALEN); + if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) { + dbg("Failed to read MAC address: %d", ret); + goto out3; + } + memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) { + dbg("Enabling software MII failed: %d", ret); + goto out3; + } + + if (((ret = + ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0) + || (*((u16 *)buf) != 0x003b)) { + dbg("Read PHY register 2 must be 0x3b00: %d", ret); + goto out3; + } + + /* Initialize MII structure */ + dev->mii.dev = dev->net; + dev->mii.mdio_read = ax8817x_mdio_read; + dev->mii.mdio_write = ax8817x_mdio_write; + dev->mii.phy_id_mask = 0xff; + dev->mii.reg_num_mask = 0xff; + + /* Get the PHY id */ + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { + dbg("Error reading PHY ID: %02x", ret); + goto out3; + } else if (ret < 2) { + /* this should always return 2 bytes */ + dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", + ret); + ret = -EIO; + goto out3; + } + dev->mii.phy_id = *((u8 *)buf + 1); + + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) { + dbg("Set external PHY reset pin level: %d", ret); + goto out3; + } + msleep(150); + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { + dbg("Set Internal/External PHY reset control: %d", ret); + goto out3; + } + msleep(150); + + + dev->net->set_multicast_list = ax8817x_set_multicast; + dev->net->ethtool_ops = &ax88772_ethtool_ops; + + ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, + cpu_to_le16(BMCR_RESET)); + ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, + cpu_to_le16(ADVERTISE_ALL | ADVERTISE_CSMA)); + mii_nway_restart(&dev->mii); + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, 0x0336, 0, 0, buf)) < 0) { + dbg("Write medium mode register: %d", ret); + goto out3; + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) { + dbg("Write IPG,IPG1,IPG2 failed: %d", ret); + goto out3; + } + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) { + dbg("Failed to set hardware MII: %02x", ret); + goto out3; + } + + /* Set RX_CTL to default values with 2k buffer, and enable cactus */ + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0, + buf)) < 0) { + dbg("Reset RX_CTL failed: %d", ret); + goto out3; + } + + if((ret = usb_submit_urb(data->int_urb, GFP_KERNEL)) < 0) { + dbg("Failed to submit interrupt URB: %02x", ret); + goto out3; + } + + kfree(buf); + + return 0; + +out3: + kfree(buf); +out2: + kfree(data->int_buf); +out1: + usb_free_urb(data->int_urb); + + return ret; +} + +static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + u32 *header; + char *packet; + struct sk_buff *ax_skb; + u16 size; + + header = (u32 *) skb->data; + le32_to_cpus(header); + packet = (char *)(header + 1); + + skb_pull(skb, 4); + + while (skb->len > 0) { + if ((short)(*header & 0x0000ffff) != + ~((short)((*header & 0xffff0000) >> 16))) { + devdbg(dev,"header length data is error"); + } + /* get the packet length */ + size = (u16) (*header & 0x0000ffff); + + if ((skb->len) - ((size + 1) & 0xfffe) == 0) + return 2; + if (size > ETH_FRAME_LEN) { + devdbg(dev,"invalid rx length %d", size); + return 0; + } + ax_skb = skb_clone(skb, GFP_ATOMIC); + if (ax_skb) { + ax_skb->len = size; + ax_skb->data = packet; + ax_skb->tail = packet + size; + skb_return(dev, ax_skb); + } else { + return 0; + } + + skb_pull(skb, (size + 1) & 0xfffe); + + if (skb->len == 0) + break; + + header = (u32 *) skb->data; + le32_to_cpus(header); + packet = (char *)(header + 1); + skb_pull(skb, 4); + } + + if (skb->len < 0) { + devdbg(dev,"invalid rx length %d", skb->len); + return 0; + } + return 1; +} + +static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb, + int flags) +{ + int padlen; + int headroom = skb_headroom(skb); + int tailroom = skb_tailroom(skb); + u32 *packet_len; + u32 *padbytes_ptr; + + padlen = ((skb->len + 4) % 512) ? 0 : 4; + + if ((!skb_cloned(skb)) + && ((headroom + tailroom) >= (4 + padlen))) { + if ((headroom < 4) || (tailroom < padlen)) { + skb->data = memmove(skb->head + 4, skb->data, skb->len); + skb->tail = skb->data + skb->len; + } + } else { + struct sk_buff *skb2; + skb2 = skb_copy_expand(skb, 4, padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + packet_len = (u32 *) skb_push(skb, 4); + + packet_len = (u32 *) skb->data; + *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); + + if ((skb->len % 512) == 0) { + padbytes_ptr = (u32 *) skb->tail; + *padbytes_ptr = 0xffff0000; + skb_put(skb, padlen); + } + return skb; +} + +static const struct driver_info ax8817x_info = { + .description = "ASIX AX8817x USB 2.0 Ethernet", + .bind = ax8817x_bind, + .unbind = ax8817x_unbind, + .flags = FLAG_ETHER, + .data = 0x00130103, +}; + +static const struct driver_info dlink_dub_e100_info = { + .description = "DLink DUB-E100 USB Ethernet", + .bind = ax8817x_bind, + .unbind = ax8817x_unbind, + .flags = FLAG_ETHER, + .data = 0x009f9d9f, +}; + +static const struct driver_info netgear_fa120_info = { + .description = "Netgear FA-120 USB Ethernet", + .bind = ax8817x_bind, + .unbind = ax8817x_unbind, + .flags = FLAG_ETHER, + .data = 0x00130103, +}; + +static const struct driver_info hawking_uf200_info = { + .description = "Hawking UF200 USB Ethernet", + .bind = ax8817x_bind, + .unbind = ax8817x_unbind, + .flags = FLAG_ETHER, + .data = 0x001f1d1f, +}; + +static const struct driver_info ax88772_info = { + .description = "ASIX AX88772 USB 2.0 Ethernet", + .bind = ax88772_bind, + .unbind = ax8817x_unbind, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88772_rx_fixup, + .tx_fixup = ax88772_tx_fixup, + .data = 0x00130103, +}; + +#endif /* CONFIG_USB_AX8817X */ + + + +#ifdef CONFIG_USB_BELKIN +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Belkin F5U104 ... two NetChip 2280 devices + Atmel microcontroller + * + * ... also two eTEK designs, including one sold as "Advance USBNET" + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info belkin_info = { + .description = "Belkin, eTEK, or compatible", +}; + +#endif /* CONFIG_USB_BELKIN */ + + + +/*------------------------------------------------------------------------- + * + * Communications Device Class declarations. + * Used by CDC Ethernet, and some CDC variants + * + *-------------------------------------------------------------------------*/ + +#ifdef CONFIG_USB_CDCETHER +#define NEED_GENERIC_CDC +#endif + +#ifdef CONFIG_USB_ZAURUS +/* Ethernet variant uses funky framing, broken ethernet addressing */ +#define NEED_GENERIC_CDC +#endif + +#ifdef CONFIG_USB_RNDIS +/* ACM variant uses even funkier framing, complex control RPC scheme */ +#define NEED_GENERIC_CDC +#endif + + +#ifdef NEED_GENERIC_CDC + +#include <linux/usb_cdc.h> + +struct cdc_state { + struct usb_cdc_header_desc *header; + struct usb_cdc_union_desc *u; + struct usb_cdc_ether_desc *ether; + struct usb_interface *control; + struct usb_interface *data; +}; + +static struct usb_driver usbnet_driver; + +/* + * probes control interface, claims data interface, collects the bulk + * endpoints, activates data interface (if needed), maybe sets MTU. + * all pure cdc, except for certain firmware workarounds. + */ +static int generic_cdc_bind (struct usbnet *dev, struct usb_interface *intf) +{ + u8 *buf = intf->cur_altsetting->extra; + int len = intf->cur_altsetting->extralen; + struct usb_interface_descriptor *d; + struct cdc_state *info = (void *) &dev->data; + int status; + int rndis; + + if (sizeof dev->data < sizeof *info) + return -EDOM; + + /* expect strict spec conformance for the descriptors, but + * cope with firmware which stores them in the wrong place + */ + if (len == 0 && dev->udev->actconfig->extralen) { + /* Motorola SB4100 (and others: Brad Hards says it's + * from a Broadcom design) put CDC descriptors here + */ + buf = dev->udev->actconfig->extra; + len = dev->udev->actconfig->extralen; + if (len) + dev_dbg (&intf->dev, + "CDC descriptors on config\n"); + } + + /* this assumes that if there's a non-RNDIS vendor variant + * of cdc-acm, it'll fail RNDIS requests cleanly. + */ + rndis = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff); + + memset (info, 0, sizeof *info); + info->control = intf; + while (len > 3) { + if (buf [1] != USB_DT_CS_INTERFACE) + goto next_desc; + + /* use bDescriptorSubType to identify the CDC descriptors. + * We expect devices with CDC header and union descriptors. + * For CDC Ethernet we need the ethernet descriptor. + * For RNDIS, ignore two (pointless) CDC modem descriptors + * in favor of a complicated OID-based RPC scheme doing what + * CDC Ethernet achieves with a simple descriptor. + */ + switch (buf [2]) { + case USB_CDC_HEADER_TYPE: + if (info->header) { + dev_dbg (&intf->dev, "extra CDC header\n"); + goto bad_desc; + } + info->header = (void *) buf; + if (info->header->bLength != sizeof *info->header) { + dev_dbg (&intf->dev, "CDC header len %u\n", + info->header->bLength); + goto bad_desc; + } + break; + case USB_CDC_UNION_TYPE: + if (info->u) { + dev_dbg (&intf->dev, "extra CDC union\n"); + goto bad_desc; + } + info->u = (void *) buf; + if (info->u->bLength != sizeof *info->u) { + dev_dbg (&intf->dev, "CDC union len %u\n", + info->u->bLength); + goto bad_desc; + } + + /* we need a master/control interface (what we're + * probed with) and a slave/data interface; union + * descriptors sort this all out. + */ + info->control = usb_ifnum_to_if(dev->udev, + info->u->bMasterInterface0); + info->data = usb_ifnum_to_if(dev->udev, + info->u->bSlaveInterface0); + if (!info->control || !info->data) { + dev_dbg (&intf->dev, + "master #%u/%p slave #%u/%p\n", + info->u->bMasterInterface0, + info->control, + info->u->bSlaveInterface0, + info->data); + goto bad_desc; + } + if (info->control != intf) { + dev_dbg (&intf->dev, "bogus CDC Union\n"); + /* Ambit USB Cable Modem (and maybe others) + * interchanges master and slave interface. + */ + if (info->data == intf) { + info->data = info->control; + info->control = intf; + } else + goto bad_desc; + } + + /* a data interface altsetting does the real i/o */ + d = &info->data->cur_altsetting->desc; + if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { + dev_dbg (&intf->dev, "slave class %u\n", + d->bInterfaceClass); + goto bad_desc; + } + break; + case USB_CDC_ETHERNET_TYPE: + if (info->ether) { + dev_dbg (&intf->dev, "extra CDC ether\n"); + goto bad_desc; + } + info->ether = (void *) buf; + if (info->ether->bLength != sizeof *info->ether) { + dev_dbg (&intf->dev, "CDC ether len %u\n", + info->u->bLength); + goto bad_desc; + } + dev->net->mtu = le16_to_cpup ( + &info->ether->wMaxSegmentSize) + - ETH_HLEN; + /* because of Zaurus, we may be ignoring the host + * side link address we were given. + */ + break; + } +next_desc: + len -= buf [0]; /* bLength */ + buf += buf [0]; + } + + if (!info->header || !info->u || (!rndis && !info->ether)) { + dev_dbg (&intf->dev, "missing cdc %s%s%sdescriptor\n", + info->header ? "" : "header ", + info->u ? "" : "union ", + info->ether ? "" : "ether "); + goto bad_desc; + } + + /* claim data interface and set it up ... with side effects. + * network traffic can't flow until an altsetting is enabled. + */ + status = usb_driver_claim_interface (&usbnet_driver, info->data, dev); + if (status < 0) + return status; + status = get_endpoints (dev, info->data); + if (status < 0) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface (&usbnet_driver, info->data); + return status; + } + + /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ + dev->status = NULL; + if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { + struct usb_endpoint_descriptor *desc; + + dev->status = &info->control->cur_altsetting->endpoint [0]; + desc = &dev->status->desc; + if (desc->bmAttributes != USB_ENDPOINT_XFER_INT + || !(desc->bEndpointAddress & USB_DIR_IN) + || (le16_to_cpu(desc->wMaxPacketSize) + < sizeof (struct usb_cdc_notification)) + || !desc->bInterval) { + dev_dbg (&intf->dev, "bad notification endpoint\n"); + dev->status = NULL; + } + } + if (rndis && !dev->status) { + dev_dbg (&intf->dev, "missing RNDIS status endpoint\n"); + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface (&usbnet_driver, info->data); + return -ENODEV; + } + return 0; + +bad_desc: + dev_info (&dev->udev->dev, "bad CDC descriptors\n"); + return -ENODEV; +} + +static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf) +{ + struct cdc_state *info = (void *) &dev->data; + + /* disconnect master --> disconnect slave */ + if (intf == info->control && info->data) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface (&usbnet_driver, info->data); + info->data = NULL; + } + + /* and vice versa (just in case) */ + else if (intf == info->data && info->control) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->control, NULL); + usb_driver_release_interface (&usbnet_driver, info->control); + info->control = NULL; + } +} + + +static void dumpspeed (struct usbnet *dev, __le32 *speeds) +{ + if (netif_msg_timer (dev)) + devinfo (dev, "link speeds: %u kbps up, %u kbps down", + __le32_to_cpu(speeds[0]) / 1000, + __le32_to_cpu(speeds[1]) / 1000); +} + +static void cdc_status (struct usbnet *dev, struct urb *urb) +{ + struct usb_cdc_notification *event; + + if (urb->actual_length < sizeof *event) + return; + + /* SPEED_CHANGE can get split into two 8-byte packets */ + if (test_and_clear_bit (EVENT_STS_SPLIT, &dev->flags)) { + dumpspeed (dev, (__le32 *) urb->transfer_buffer); + return; + } + + event = urb->transfer_buffer; + switch (event->bNotificationType) { + case USB_CDC_NOTIFY_NETWORK_CONNECTION: + if (netif_msg_timer (dev)) + devdbg (dev, "CDC: carrier %s", + event->wValue ? "on" : "off"); + if (event->wValue) + netif_carrier_on(dev->net); + else + netif_carrier_off(dev->net); + break; + case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ + if (netif_msg_timer (dev)) + devdbg (dev, "CDC: speed change (len %d)", + urb->actual_length); + if (urb->actual_length != (sizeof *event + 8)) + set_bit (EVENT_STS_SPLIT, &dev->flags); + else + dumpspeed (dev, (__le32 *) &event[1]); + break; + // case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: /* RNDIS; or unsolicited */ + default: + deverr (dev, "CDC: unexpected notification %02x!", + event->bNotificationType); + break; + } +} + +#endif /* NEED_GENERIC_CDC */ + + +#ifdef CONFIG_USB_CDCETHER +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Communications Device Class, Ethernet Control model + * + * Takes two interfaces. The DATA interface is inactive till an altsetting + * is selected. Configuration data includes class descriptors. + * + * This should interop with whatever the 2.4 "CDCEther.c" driver + * (by Brad Hards) talked with. + * + *-------------------------------------------------------------------------*/ + +#include <linux/ctype.h> + +static u8 nibble (unsigned char c) +{ + if (likely (isdigit (c))) + return c - '0'; + c = toupper (c); + if (likely (isxdigit (c))) + return 10 + c - 'A'; + return 0; +} + +static inline int +get_ethernet_addr (struct usbnet *dev, struct usb_cdc_ether_desc *e) +{ + int tmp, i; + unsigned char buf [13]; + + tmp = usb_string (dev->udev, e->iMACAddress, buf, sizeof buf); + if (tmp != 12) { + dev_dbg (&dev->udev->dev, + "bad MAC string %d fetch, %d\n", e->iMACAddress, tmp); + if (tmp >= 0) + tmp = -EINVAL; + return tmp; + } + for (i = tmp = 0; i < 6; i++, tmp += 2) + dev->net->dev_addr [i] = + (nibble (buf [tmp]) << 4) + nibble (buf [tmp + 1]); + return 0; +} + +static int cdc_bind (struct usbnet *dev, struct usb_interface *intf) +{ + int status; + struct cdc_state *info = (void *) &dev->data; + + status = generic_cdc_bind (dev, intf); + if (status < 0) + return status; + + status = get_ethernet_addr (dev, info->ether); + if (status < 0) { + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface (&usbnet_driver, info->data); + return status; + } + + /* FIXME cdc-ether has some multicast code too, though it complains + * in routine cases. info->ether describes the multicast support. + */ + return 0; +} + +static const struct driver_info cdc_info = { + .description = "CDC Ethernet Device", + .flags = FLAG_ETHER, + // .check_connect = cdc_check_connect, + .bind = cdc_bind, + .unbind = cdc_unbind, + .status = cdc_status, +}; + +#endif /* CONFIG_USB_CDCETHER */ + + + +#ifdef CONFIG_USB_EPSON2888 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * EPSON USB clients + * + * This is the same idea as Linux PDAs (below) except the firmware in the + * device might not be Tux-powered. Epson provides reference firmware that + * implements this interface. Product developers can reuse or modify that + * code, such as by using their own product and vendor codes. + * + * Support was from Juro Bystricky <bystricky.juro@erd.epson.com> + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info epson2888_info = { + .description = "Epson USB Device", + .check_connect = always_connected, + + .in = 4, .out = 3, +}; + +#endif /* CONFIG_USB_EPSON2888 */ + + +#ifdef CONFIG_USB_GENESYS +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * GeneSys GL620USB-A (www.genesyslogic.com.tw) + * + * ... should partially interop with the Win32 driver for this hardware + * The GeneSys docs imply there's some NDIS issue motivating this framing. + * + * Some info from GeneSys: + * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk. + * (Some cables, like the BAFO-100c, use the half duplex version.) + * - For the full duplex model, the low bit of the version code says + * which side is which ("left/right"). + * - For the half duplex type, a control/interrupt handshake settles + * the transfer direction. (That's disabled here, partially coded.) + * A control URB would block until other side writes an interrupt. + * + * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw> + * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>. + * + *-------------------------------------------------------------------------*/ + +// control msg write command +#define GENELINK_CONNECT_WRITE 0xF0 +// interrupt pipe index +#define GENELINK_INTERRUPT_PIPE 0x03 +// interrupt read buffer size +#define INTERRUPT_BUFSIZE 0x08 +// interrupt pipe interval value +#define GENELINK_INTERRUPT_INTERVAL 0x10 +// max transmit packet number per transmit +#define GL_MAX_TRANSMIT_PACKETS 32 +// max packet length +#define GL_MAX_PACKET_LEN 1514 +// max receive buffer size +#define GL_RCV_BUF_SIZE \ + (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4) + +struct gl_packet { + u32 packet_length; + char packet_data [1]; +}; + +struct gl_header { + u32 packet_count; + struct gl_packet packets; +}; + +#ifdef GENELINK_ACK + +// FIXME: this code is incomplete, not debugged; it doesn't +// handle interrupts correctly. interrupts should be generic +// code like all other device I/O, anyway. + +struct gl_priv { + struct urb *irq_urb; + char irq_buf [INTERRUPT_BUFSIZE]; +}; + +static inline int gl_control_write (struct usbnet *dev, u8 request, u16 value) +{ + int retval; + + retval = usb_control_msg (dev->udev, + usb_sndctrlpipe (dev->udev, 0), + request, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + value, + 0, // index + 0, // data buffer + 0, // size + CONTROL_TIMEOUT_MS); + return retval; +} + +static void gl_interrupt_complete (struct urb *urb, struct pt_regs *regs) +{ + int status = urb->status; + + switch (status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); + return; + default: + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, urb->status); + } + + status = usb_submit_urb (urb, GFP_ATOMIC); + if (status) + err ("%s - usb_submit_urb failed with result %d", + __FUNCTION__, status); +} + +static int gl_interrupt_read (struct usbnet *dev) +{ + struct gl_priv *priv = dev->priv_data; + int retval; + + // issue usb interrupt read + if (priv && priv->irq_urb) { + // submit urb + if ((retval = usb_submit_urb (priv->irq_urb, GFP_KERNEL)) != 0) + dbg ("gl_interrupt_read: submit fail - %X...", retval); + else + dbg ("gl_interrupt_read: submit success..."); + } + + return 0; +} + +// check whether another side is connected +static int genelink_check_connect (struct usbnet *dev) +{ + int retval; + + dbg ("genelink_check_connect..."); + + // detect whether another side is connected + if ((retval = gl_control_write (dev, GENELINK_CONNECT_WRITE, 0)) != 0) { + dbg ("%s: genelink_check_connect write fail - %X", + dev->net->name, retval); + return retval; + } + + // usb interrupt read to ack another side + if ((retval = gl_interrupt_read (dev)) != 0) { + dbg ("%s: genelink_check_connect read fail - %X", + dev->net->name, retval); + return retval; + } + + dbg ("%s: genelink_check_connect read success", dev->net->name); + return 0; +} + +// allocate and initialize the private data for genelink +static int genelink_init (struct usbnet *dev) +{ + struct gl_priv *priv; + + // allocate the private data structure + if ((priv = kmalloc (sizeof *priv, GFP_KERNEL)) == 0) { + dbg ("%s: cannot allocate private data per device", + dev->net->name); + return -ENOMEM; + } + + // allocate irq urb + if ((priv->irq_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) { + dbg ("%s: cannot allocate private irq urb per device", + dev->net->name); + kfree (priv); + return -ENOMEM; + } + + // fill irq urb + usb_fill_int_urb (priv->irq_urb, dev->udev, + usb_rcvintpipe (dev->udev, GENELINK_INTERRUPT_PIPE), + priv->irq_buf, INTERRUPT_BUFSIZE, + gl_interrupt_complete, 0, + GENELINK_INTERRUPT_INTERVAL); + + // set private data pointer + dev->priv_data = priv; + + return 0; +} + +// release the private data +static int genelink_free (struct usbnet *dev) +{ + struct gl_priv *priv = dev->priv_data; + + if (!priv) + return 0; + +// FIXME: can't cancel here; it's synchronous, and +// should have happened earlier in any case (interrupt +// handling needs to be generic) + + // cancel irq urb first + usb_kill_urb (priv->irq_urb); + + // free irq urb + usb_free_urb (priv->irq_urb); + + // free the private data structure + kfree (priv); + + return 0; +} + +#endif + +static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb) +{ + struct gl_header *header; + struct gl_packet *packet; + struct sk_buff *gl_skb; + u32 size; + + header = (struct gl_header *) skb->data; + + // get the packet count of the received skb + le32_to_cpus (&header->packet_count); + if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS) + || (header->packet_count < 0)) { + dbg ("genelink: invalid received packet count %d", + header->packet_count); + return 0; + } + + // set the current packet pointer to the first packet + packet = &header->packets; + + // decrement the length for the packet count size 4 bytes + skb_pull (skb, 4); + + while (header->packet_count > 1) { + // get the packet length + size = packet->packet_length; + + // this may be a broken packet + if (size > GL_MAX_PACKET_LEN) { + dbg ("genelink: invalid rx length %d", size); + return 0; + } + + // allocate the skb for the individual packet + gl_skb = alloc_skb (size, GFP_ATOMIC); + if (gl_skb) { + + // copy the packet data to the new skb + memcpy(skb_put(gl_skb, size), packet->packet_data, size); + skb_return (dev, skb); + } + + // advance to the next packet + packet = (struct gl_packet *) + &packet->packet_data [size]; + header->packet_count--; + + // shift the data pointer to the next gl_packet + skb_pull (skb, size + 4); + } + + // skip the packet length field 4 bytes + skb_pull (skb, 4); + + if (skb->len > GL_MAX_PACKET_LEN) { + dbg ("genelink: invalid rx length %d", skb->len); + return 0; + } + return 1; +} + +static struct sk_buff * +genelink_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) +{ + int padlen; + int length = skb->len; + int headroom = skb_headroom (skb); + int tailroom = skb_tailroom (skb); + u32 *packet_count; + u32 *packet_len; + + // FIXME: magic numbers, bleech + padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1; + + if ((!skb_cloned (skb)) + && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) { + if ((headroom < (4 + 4*1)) || (tailroom < padlen)) { + skb->data = memmove (skb->head + (4 + 4*1), + skb->data, skb->len); + skb->tail = skb->data + skb->len; + } + } else { + struct sk_buff *skb2; + skb2 = skb_copy_expand (skb, (4 + 4*1) , padlen, flags); + dev_kfree_skb_any (skb); + skb = skb2; + if (!skb) + return NULL; + } + + // attach the packet count to the header + packet_count = (u32 *) skb_push (skb, (4 + 4*1)); + packet_len = packet_count + 1; + + // FIXME little endian? + *packet_count = 1; + *packet_len = length; + + // add padding byte + if ((skb->len % dev->maxpacket) == 0) + skb_put (skb, 1); + + return skb; +} + +static const struct driver_info genelink_info = { + .description = "Genesys GeneLink", + .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT, + .rx_fixup = genelink_rx_fixup, + .tx_fixup = genelink_tx_fixup, + + .in = 1, .out = 2, + +#ifdef GENELINK_ACK + .check_connect =genelink_check_connect, +#endif +}; + +#endif /* CONFIG_USB_GENESYS */ + + + +#ifdef CONFIG_USB_NET1080 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Netchip 1080 driver ... http://www.netchip.com + * Used in LapLink cables + * + *-------------------------------------------------------------------------*/ + +#define dev_packet_id data[0] +#define frame_errors data[1] + +/* + * NetChip framing of ethernet packets, supporting additional error + * checks for links that may drop bulk packets from inside messages. + * Odd USB length == always short read for last usb packet. + * - nc_header + * - Ethernet header (14 bytes) + * - payload + * - (optional padding byte, if needed so length becomes odd) + * - nc_trailer + * + * This framing is to be avoided for non-NetChip devices. + */ + +struct nc_header { // packed: + __le16 hdr_len; // sizeof nc_header (LE, all) + __le16 packet_len; // payload size (including ethhdr) + __le16 packet_id; // detects dropped packets +#define MIN_HEADER 6 + + // all else is optional, and must start with: + // u16 vendorId; // from usb-if + // u16 productId; +} __attribute__((__packed__)); + +#define PAD_BYTE ((unsigned char)0xAC) + +struct nc_trailer { + __le16 packet_id; +} __attribute__((__packed__)); + +// packets may use FLAG_FRAMING_NC and optional pad +#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \ + + sizeof (struct ethhdr) \ + + (mtu) \ + + 1 \ + + sizeof (struct nc_trailer)) + +#define MIN_FRAMED FRAMED_SIZE(0) + + +/* + * Zero means no timeout; else, how long a 64 byte bulk packet may be queued + * before the hardware drops it. If that's done, the driver will need to + * frame network packets to guard against the dropped USB packets. The win32 + * driver sets this for both sides of the link. + */ +#define NC_READ_TTL_MS ((u8)255) // ms + +/* + * We ignore most registers and EEPROM contents. + */ +#define REG_USBCTL ((u8)0x04) +#define REG_TTL ((u8)0x10) +#define REG_STATUS ((u8)0x11) + +/* + * Vendor specific requests to read/write data + */ +#define REQUEST_REGISTER ((u8)0x10) +#define REQUEST_EEPROM ((u8)0x11) + +static int +nc_vendor_read (struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr) +{ + int status = usb_control_msg (dev->udev, + usb_rcvctrlpipe (dev->udev, 0), + req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, regnum, + retval_ptr, sizeof *retval_ptr, + CONTROL_TIMEOUT_MS); + if (status > 0) + status = 0; + if (!status) + le16_to_cpus (retval_ptr); + return status; +} + +static inline int +nc_register_read (struct usbnet *dev, u8 regnum, u16 *retval_ptr) +{ + return nc_vendor_read (dev, REQUEST_REGISTER, regnum, retval_ptr); +} + +// no retval ... can become async, usable in_interrupt() +static void +nc_vendor_write (struct usbnet *dev, u8 req, u8 regnum, u16 value) +{ + usb_control_msg (dev->udev, + usb_sndctrlpipe (dev->udev, 0), + req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, regnum, + NULL, 0, // data is in setup packet + CONTROL_TIMEOUT_MS); +} + +static inline void +nc_register_write (struct usbnet *dev, u8 regnum, u16 value) +{ + nc_vendor_write (dev, REQUEST_REGISTER, regnum, value); +} + + +#if 0 +static void nc_dump_registers (struct usbnet *dev) +{ + u8 reg; + u16 *vp = kmalloc (sizeof (u16)); + + if (!vp) { + dbg ("no memory?"); + return; + } + + dbg ("%s registers:", dev->net->name); + for (reg = 0; reg < 0x20; reg++) { + int retval; + + // reading some registers is trouble + if (reg >= 0x08 && reg <= 0xf) + continue; + if (reg >= 0x12 && reg <= 0x1e) + continue; + + retval = nc_register_read (dev, reg, vp); + if (retval < 0) + dbg ("%s reg [0x%x] ==> error %d", + dev->net->name, reg, retval); + else + dbg ("%s reg [0x%x] = 0x%x", + dev->net->name, reg, *vp); + } + kfree (vp); +} +#endif + + +/*-------------------------------------------------------------------------*/ + +/* + * Control register + */ + +#define USBCTL_WRITABLE_MASK 0x1f0f +// bits 15-13 reserved, r/o +#define USBCTL_ENABLE_LANG (1 << 12) +#define USBCTL_ENABLE_MFGR (1 << 11) +#define USBCTL_ENABLE_PROD (1 << 10) +#define USBCTL_ENABLE_SERIAL (1 << 9) +#define USBCTL_ENABLE_DEFAULTS (1 << 8) +// bits 7-4 reserved, r/o +#define USBCTL_FLUSH_OTHER (1 << 3) +#define USBCTL_FLUSH_THIS (1 << 2) +#define USBCTL_DISCONN_OTHER (1 << 1) +#define USBCTL_DISCONN_THIS (1 << 0) + +static inline void nc_dump_usbctl (struct usbnet *dev, u16 usbctl) +{ + if (!netif_msg_link (dev)) + return; + devdbg (dev, "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s;" + " this%s%s;" + " other%s%s; r/o 0x%x", + dev->udev->bus->bus_name, dev->udev->devpath, + usbctl, + (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "", + (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "", + (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "", + (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "", + (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "", + + (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "", + (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "", + (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "", + (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "", + usbctl & ~USBCTL_WRITABLE_MASK + ); +} + +/*-------------------------------------------------------------------------*/ + +/* + * Status register + */ + +#define STATUS_PORT_A (1 << 15) + +#define STATUS_CONN_OTHER (1 << 14) +#define STATUS_SUSPEND_OTHER (1 << 13) +#define STATUS_MAILBOX_OTHER (1 << 12) +#define STATUS_PACKETS_OTHER(n) (((n) >> 8) && 0x03) + +#define STATUS_CONN_THIS (1 << 6) +#define STATUS_SUSPEND_THIS (1 << 5) +#define STATUS_MAILBOX_THIS (1 << 4) +#define STATUS_PACKETS_THIS(n) (((n) >> 0) && 0x03) + +#define STATUS_UNSPEC_MASK 0x0c8c +#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK)) + + +static inline void nc_dump_status (struct usbnet *dev, u16 status) +{ + if (!netif_msg_link (dev)) + return; + devdbg (dev, "net1080 %s-%s status 0x%x:" + " this (%c) PKT=%d%s%s%s;" + " other PKT=%d%s%s%s; unspec 0x%x", + dev->udev->bus->bus_name, dev->udev->devpath, + status, + + // XXX the packet counts don't seem right + // (1 at reset, not 0); maybe UNSPEC too + + (status & STATUS_PORT_A) ? 'A' : 'B', + STATUS_PACKETS_THIS (status), + (status & STATUS_CONN_THIS) ? " CON" : "", + (status & STATUS_SUSPEND_THIS) ? " SUS" : "", + (status & STATUS_MAILBOX_THIS) ? " MBOX" : "", + + STATUS_PACKETS_OTHER (status), + (status & STATUS_CONN_OTHER) ? " CON" : "", + (status & STATUS_SUSPEND_OTHER) ? " SUS" : "", + (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "", + + status & STATUS_UNSPEC_MASK + ); +} + +/*-------------------------------------------------------------------------*/ + +/* + * TTL register + */ + +#define TTL_THIS(ttl) (0x00ff & ttl) +#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8)) +#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this)))) + +static inline void nc_dump_ttl (struct usbnet *dev, u16 ttl) +{ + if (netif_msg_link (dev)) + devdbg (dev, "net1080 %s-%s ttl 0x%x this = %d, other = %d", + dev->udev->bus->bus_name, dev->udev->devpath, + ttl, TTL_THIS (ttl), TTL_OTHER (ttl)); +} + +/*-------------------------------------------------------------------------*/ + +static int net1080_reset (struct usbnet *dev) +{ + u16 usbctl, status, ttl; + u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL); + int retval; + + if (!vp) + return -ENOMEM; + + // nc_dump_registers (dev); + + if ((retval = nc_register_read (dev, REG_STATUS, vp)) < 0) { + dbg ("can't read %s-%s status: %d", + dev->udev->bus->bus_name, dev->udev->devpath, retval); + goto done; + } + status = *vp; + nc_dump_status (dev, status); + + if ((retval = nc_register_read (dev, REG_USBCTL, vp)) < 0) { + dbg ("can't read USBCTL, %d", retval); + goto done; + } + usbctl = *vp; + nc_dump_usbctl (dev, usbctl); + + nc_register_write (dev, REG_USBCTL, + USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER); + + if ((retval = nc_register_read (dev, REG_TTL, vp)) < 0) { + dbg ("can't read TTL, %d", retval); + goto done; + } + ttl = *vp; + // nc_dump_ttl (dev, ttl); + + nc_register_write (dev, REG_TTL, + MK_TTL (NC_READ_TTL_MS, TTL_OTHER (ttl)) ); + dbg ("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS); + + if (netif_msg_link (dev)) + devinfo (dev, "port %c, peer %sconnected", + (status & STATUS_PORT_A) ? 'A' : 'B', + (status & STATUS_CONN_OTHER) ? "" : "dis" + ); + retval = 0; + +done: + kfree (vp); + return retval; +} + +static int net1080_check_connect (struct usbnet *dev) +{ + int retval; + u16 status; + u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL); + + if (!vp) + return -ENOMEM; + retval = nc_register_read (dev, REG_STATUS, vp); + status = *vp; + kfree (vp); + if (retval != 0) { + dbg ("%s net1080_check_conn read - %d", dev->net->name, retval); + return retval; + } + if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER) + return -ENOLINK; + return 0; +} + +static void nc_flush_complete (struct urb *urb, struct pt_regs *regs) +{ + kfree (urb->context); + usb_free_urb(urb); +} + +static void nc_ensure_sync (struct usbnet *dev) +{ + dev->frame_errors++; + if (dev->frame_errors > 5) { + struct urb *urb; + struct usb_ctrlrequest *req; + int status; + + /* Send a flush */ + urb = usb_alloc_urb (0, SLAB_ATOMIC); + if (!urb) + return; + + req = kmalloc (sizeof *req, GFP_ATOMIC); + if (!req) { + usb_free_urb (urb); + return; + } + + req->bRequestType = USB_DIR_OUT + | USB_TYPE_VENDOR + | USB_RECIP_DEVICE; + req->bRequest = REQUEST_REGISTER; + req->wValue = cpu_to_le16 (USBCTL_FLUSH_THIS + | USBCTL_FLUSH_OTHER); + req->wIndex = cpu_to_le16 (REG_USBCTL); + req->wLength = cpu_to_le16 (0); + + /* queue an async control request, we don't need + * to do anything when it finishes except clean up. + */ + usb_fill_control_urb (urb, dev->udev, + usb_sndctrlpipe (dev->udev, 0), + (unsigned char *) req, + NULL, 0, + nc_flush_complete, req); + status = usb_submit_urb (urb, GFP_ATOMIC); + if (status) { + kfree (req); + usb_free_urb (urb); + return; + } + + if (netif_msg_rx_err (dev)) + devdbg (dev, "flush net1080; too many framing errors"); + dev->frame_errors = 0; + } +} + +static int net1080_rx_fixup (struct usbnet *dev, struct sk_buff *skb) +{ + struct nc_header *header; + struct nc_trailer *trailer; + u16 hdr_len, packet_len; + + if (!(skb->len & 0x01) + || MIN_FRAMED > skb->len + || skb->len > FRAMED_SIZE (dev->net->mtu)) { + dev->stats.rx_frame_errors++; + dbg ("rx framesize %d range %d..%d mtu %d", skb->len, + (int)MIN_FRAMED, (int)FRAMED_SIZE (dev->net->mtu), + dev->net->mtu); + nc_ensure_sync (dev); + return 0; + } + + header = (struct nc_header *) skb->data; + hdr_len = le16_to_cpup (&header->hdr_len); + packet_len = le16_to_cpup (&header->packet_len); + if (FRAMED_SIZE (packet_len) > MAX_PACKET) { + dev->stats.rx_frame_errors++; + dbg ("packet too big, %d", packet_len); + nc_ensure_sync (dev); + return 0; + } else if (hdr_len < MIN_HEADER) { + dev->stats.rx_frame_errors++; + dbg ("header too short, %d", hdr_len); + nc_ensure_sync (dev); + return 0; + } else if (hdr_len > MIN_HEADER) { + // out of band data for us? + dbg ("header OOB, %d bytes", hdr_len - MIN_HEADER); + nc_ensure_sync (dev); + // switch (vendor/product ids) { ... } + } + skb_pull (skb, hdr_len); + + trailer = (struct nc_trailer *) + (skb->data + skb->len - sizeof *trailer); + skb_trim (skb, skb->len - sizeof *trailer); + + if ((packet_len & 0x01) == 0) { + if (skb->data [packet_len] != PAD_BYTE) { + dev->stats.rx_frame_errors++; + dbg ("bad pad"); + return 0; + } + skb_trim (skb, skb->len - 1); + } + if (skb->len != packet_len) { + dev->stats.rx_frame_errors++; + dbg ("bad packet len %d (expected %d)", + skb->len, packet_len); + nc_ensure_sync (dev); + return 0; + } + if (header->packet_id != get_unaligned (&trailer->packet_id)) { + dev->stats.rx_fifo_errors++; + dbg ("(2+ dropped) rx packet_id mismatch 0x%x 0x%x", + le16_to_cpu (header->packet_id), + le16_to_cpu (trailer->packet_id)); + return 0; + } +#if 0 + devdbg (dev, "frame <rx h %d p %d id %d", header->hdr_len, + header->packet_len, header->packet_id); +#endif + dev->frame_errors = 0; + return 1; +} + +static struct sk_buff * +net1080_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) +{ + int padlen; + struct sk_buff *skb2; + + padlen = ((skb->len + sizeof (struct nc_header) + + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1; + if (!skb_cloned (skb)) { + int headroom = skb_headroom (skb); + int tailroom = skb_tailroom (skb); + + if ((padlen + sizeof (struct nc_trailer)) <= tailroom + && sizeof (struct nc_header) <= headroom) + /* There's enough head and tail room */ + return skb; + + if ((sizeof (struct nc_header) + padlen + + sizeof (struct nc_trailer)) < + (headroom + tailroom)) { + /* There's enough total room, so just readjust */ + skb->data = memmove (skb->head + + sizeof (struct nc_header), + skb->data, skb->len); + skb->tail = skb->data + skb->len; + return skb; + } + } + + /* Create a new skb to use with the correct size */ + skb2 = skb_copy_expand (skb, + sizeof (struct nc_header), + sizeof (struct nc_trailer) + padlen, + flags); + dev_kfree_skb_any (skb); + return skb2; +} + +static const struct driver_info net1080_info = { + .description = "NetChip TurboCONNECT", + .flags = FLAG_FRAMING_NC, + .reset = net1080_reset, + .check_connect =net1080_check_connect, + .rx_fixup = net1080_rx_fixup, + .tx_fixup = net1080_tx_fixup, +}; + +#endif /* CONFIG_USB_NET1080 */ + + + +#ifdef CONFIG_USB_PL2301 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com + * + * The protocol and handshaking used here should be bug-compatible + * with the Linux 2.2 "plusb" driver, by Deti Fliegl. + * + *-------------------------------------------------------------------------*/ + +/* + * Bits 0-4 can be used for software handshaking; they're set from + * one end, cleared from the other, "read" with the interrupt byte. + */ +#define PL_S_EN (1<<7) /* (feature only) suspend enable */ +/* reserved bit -- rx ready (6) ? */ +#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */ +#define PL_RESET_OUT (1<<4) /* reset output pipe */ +#define PL_RESET_IN (1<<3) /* reset input pipe */ +#define PL_TX_C (1<<2) /* transmission complete */ +#define PL_TX_REQ (1<<1) /* transmission received */ +#define PL_PEER_E (1<<0) /* peer exists */ + +static inline int +pl_vendor_req (struct usbnet *dev, u8 req, u8 val, u8 index) +{ + return usb_control_msg (dev->udev, + usb_rcvctrlpipe (dev->udev, 0), + req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + val, index, + NULL, 0, + CONTROL_TIMEOUT_MS); +} + +static inline int +pl_clear_QuickLink_features (struct usbnet *dev, int val) +{ + return pl_vendor_req (dev, 1, (u8) val, 0); +} + +static inline int +pl_set_QuickLink_features (struct usbnet *dev, int val) +{ + return pl_vendor_req (dev, 3, (u8) val, 0); +} + +/*-------------------------------------------------------------------------*/ + +static int pl_reset (struct usbnet *dev) +{ + /* some units seem to need this reset, others reject it utterly. + * FIXME be more like "naplink" or windows drivers. + */ + (void) pl_set_QuickLink_features (dev, + PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E); + return 0; +} + +static const struct driver_info prolific_info = { + .description = "Prolific PL-2301/PL-2302", + .flags = FLAG_NO_SETINT, + /* some PL-2302 versions seem to fail usb_set_interface() */ + .reset = pl_reset, +}; + +#endif /* CONFIG_USB_PL2301 */ + + +#ifdef CONFIG_USB_KC2190 +#define HAVE_HARDWARE +static const struct driver_info kc2190_info = { + .description = "KC Technology KC-190", +}; +#endif /* CONFIG_USB_KC2190 */ + + +#ifdef CONFIG_USB_ARMLINUX +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Intel's SA-1100 chip integrates basic USB support, and is used + * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more. + * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to + * network using minimal USB framing data. + * + * This describes the driver currently in standard ARM Linux kernels. + * The Zaurus uses a different driver (see later). + * + * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support + * and different USB endpoint numbering than the SA1100 devices. The + * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100 + * so we rely on the endpoint descriptors. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info linuxdev_info = { + .description = "Linux Device", + .check_connect = always_connected, +}; + +static const struct driver_info yopy_info = { + .description = "Yopy", + .check_connect = always_connected, +}; + +static const struct driver_info blob_info = { + .description = "Boot Loader OBject", + .check_connect = always_connected, +}; + +#endif /* CONFIG_USB_ARMLINUX */ + + +#ifdef CONFIG_USB_ZAURUS +#define HAVE_HARDWARE + +#include <linux/crc32.h> + +/*------------------------------------------------------------------------- + * + * Zaurus is also a SA-1110 based PDA, but one using a different driver + * (and framing) for its USB slave/gadget controller than the case above. + * + * For the current version of that driver, the main way that framing is + * nonstandard (also from perspective of the CDC ethernet model!) is a + * crc32, added to help detect when some sa1100 usb-to-memory DMA errata + * haven't been fully worked around. Also, all Zaurii use the same + * default Ethernet address. + * + * PXA based models use the same framing, and also can't implement + * set_interface properly. + * + * All known Zaurii lie about their standards conformance. Most lie by + * saying they support CDC Ethernet. Some lie and say they support CDC + * MDLM (as if for access to cell phone modems). Someone, please beat + * on Sharp for a while with a cluestick. + * + *-------------------------------------------------------------------------*/ + +static struct sk_buff * +zaurus_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) +{ + int padlen; + struct sk_buff *skb2; + + padlen = 2; + if (!skb_cloned (skb)) { + int tailroom = skb_tailroom (skb); + if ((padlen + 4) <= tailroom) + goto done; + } + skb2 = skb_copy_expand (skb, 0, 4 + padlen, flags); + dev_kfree_skb_any (skb); + skb = skb2; + if (skb) { + u32 fcs; +done: + fcs = crc32_le (~0, skb->data, skb->len); + fcs = ~fcs; + + *skb_put (skb, 1) = fcs & 0xff; + *skb_put (skb, 1) = (fcs>> 8) & 0xff; + *skb_put (skb, 1) = (fcs>>16) & 0xff; + *skb_put (skb, 1) = (fcs>>24) & 0xff; + } + return skb; +} + +static const struct driver_info zaurus_sl5x00_info = { + .description = "Sharp Zaurus SL-5x00", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = generic_cdc_bind, + .unbind = cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info) + +static const struct driver_info zaurus_pxa_info = { + .description = "Sharp Zaurus, PXA-2xx based", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = generic_cdc_bind, + .unbind = cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info) + +static const struct driver_info zaurus_pxa_mdlm_info = { + .description = "Sharp Zaurus, PXA-255 based", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .tx_fixup = zaurus_tx_fixup, +}; + +static const struct driver_info olympus_mxl_info = { + .description = "Olympus R1000", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = generic_cdc_bind, + .unbind = cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info) + +#else + +/* blacklist all those devices */ +#define ZAURUS_STRONGARM_INFO 0 +#define ZAURUS_PXA_INFO 0 +#define OLYMPUS_MXL_INFO 0 + +#endif + + +/*------------------------------------------------------------------------- + * + * Network Device Driver (peer link to "Host Device", from USB host) + * + *-------------------------------------------------------------------------*/ + +static int usbnet_change_mtu (struct net_device *net, int new_mtu) +{ + struct usbnet *dev = netdev_priv(net); + + if (new_mtu <= MIN_PACKET || new_mtu > MAX_PACKET) + return -EINVAL; +#ifdef CONFIG_USB_NET1080 + if (((dev->driver_info->flags) & FLAG_FRAMING_NC)) { + if (FRAMED_SIZE (new_mtu) > MAX_PACKET) + return -EINVAL; + } +#endif +#ifdef CONFIG_USB_GENESYS + if (((dev->driver_info->flags) & FLAG_FRAMING_GL) + && new_mtu > GL_MAX_PACKET_LEN) + return -EINVAL; +#endif + // no second zero-length packet read wanted after mtu-sized packets + if (((new_mtu + sizeof (struct ethhdr)) % dev->maxpacket) == 0) + return -EDOM; + net->mtu = new_mtu; + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static struct net_device_stats *usbnet_get_stats (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + return &dev->stats; +} + +/*-------------------------------------------------------------------------*/ + +/* some LK 2.4 HCDs oopsed if we freed or resubmitted urbs from + * completion callbacks. 2.5 should have fixed those bugs... + */ + +static void defer_bh (struct usbnet *dev, struct sk_buff *skb) +{ + struct sk_buff_head *list = skb->list; + unsigned long flags; + + spin_lock_irqsave (&list->lock, flags); + __skb_unlink (skb, list); + spin_unlock (&list->lock); + spin_lock (&dev->done.lock); + __skb_queue_tail (&dev->done, skb); + if (dev->done.qlen == 1) + tasklet_schedule (&dev->bh); + spin_unlock_irqrestore (&dev->done.lock, flags); +} + +/* some work can't be done in tasklets, so we use keventd + * + * NOTE: annoying asymmetry: if it's active, schedule_work() fails, + * but tasklet_schedule() doesn't. hope the failure is rare. + */ +static void defer_kevent (struct usbnet *dev, int work) +{ + set_bit (work, &dev->flags); + if (!schedule_work (&dev->kevent)) + deverr (dev, "kevent %d may have been dropped", work); + else + devdbg (dev, "kevent %d scheduled", work); +} + +/*-------------------------------------------------------------------------*/ + +static void rx_complete (struct urb *urb, struct pt_regs *regs); + +static void rx_submit (struct usbnet *dev, struct urb *urb, int flags) +{ + struct sk_buff *skb; + struct skb_data *entry; + int retval = 0; + unsigned long lockflags; + size_t size; + +#ifdef CONFIG_USB_NET1080 + if (dev->driver_info->flags & FLAG_FRAMING_NC) + size = FRAMED_SIZE (dev->net->mtu); + else +#endif +#ifdef CONFIG_USB_GENESYS + if (dev->driver_info->flags & FLAG_FRAMING_GL) + size = GL_RCV_BUF_SIZE; + else +#endif +#ifdef CONFIG_USB_ZAURUS + if (dev->driver_info->flags & FLAG_FRAMING_Z) + size = 6 + (sizeof (struct ethhdr) + dev->net->mtu); + else +#endif +#ifdef CONFIG_USB_RNDIS + if (dev->driver_info->flags & FLAG_FRAMING_RN) + size = RNDIS_MAX_TRANSFER; + else +#endif +#ifdef CONFIG_USB_AX8817X + if (dev->driver_info->flags & FLAG_FRAMING_AX) + size = 2048; + else +#endif + size = (sizeof (struct ethhdr) + dev->net->mtu); + + if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) { + if (netif_msg_rx_err (dev)) + devdbg (dev, "no rx skb"); + defer_kevent (dev, EVENT_RX_MEMORY); + usb_free_urb (urb); + return; + } + skb_reserve (skb, NET_IP_ALIGN); + + entry = (struct skb_data *) skb->cb; + entry->urb = urb; + entry->dev = dev; + entry->state = rx_start; + entry->length = 0; + + usb_fill_bulk_urb (urb, dev->udev, dev->in, + skb->data, size, rx_complete, skb); + urb->transfer_flags |= URB_ASYNC_UNLINK; + + spin_lock_irqsave (&dev->rxq.lock, lockflags); + + if (netif_running (dev->net) + && netif_device_present (dev->net) + && !test_bit (EVENT_RX_HALT, &dev->flags)) { + switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){ + case -EPIPE: + defer_kevent (dev, EVENT_RX_HALT); + break; + case -ENOMEM: + defer_kevent (dev, EVENT_RX_MEMORY); + break; + case -ENODEV: + if (netif_msg_ifdown (dev)) + devdbg (dev, "device gone"); + netif_device_detach (dev->net); + break; + default: + if (netif_msg_rx_err (dev)) + devdbg (dev, "rx submit, %d", retval); + tasklet_schedule (&dev->bh); + break; + case 0: + __skb_queue_tail (&dev->rxq, skb); + } + } else { + if (netif_msg_ifdown (dev)) + devdbg (dev, "rx: stopped"); + retval = -ENOLINK; + } + spin_unlock_irqrestore (&dev->rxq.lock, lockflags); + if (retval) { + dev_kfree_skb_any (skb); + usb_free_urb (urb); + } +} + + +/*-------------------------------------------------------------------------*/ + +static inline void rx_process (struct usbnet *dev, struct sk_buff *skb) +{ + if (dev->driver_info->rx_fixup + && !dev->driver_info->rx_fixup (dev, skb)) + goto error; + // else network stack removes extra byte if we forced a short packet + + if (skb->len) + skb_return (dev, skb); + else { + if (netif_msg_rx_err (dev)) + devdbg (dev, "drop"); +error: + dev->stats.rx_errors++; + skb_queue_tail (&dev->done, skb); + } +} + +/*-------------------------------------------------------------------------*/ + +static void rx_complete (struct urb *urb, struct pt_regs *regs) +{ + struct sk_buff *skb = (struct sk_buff *) urb->context; + struct skb_data *entry = (struct skb_data *) skb->cb; + struct usbnet *dev = entry->dev; + int urb_status = urb->status; + + skb_put (skb, urb->actual_length); + entry->state = rx_done; + entry->urb = NULL; + + switch (urb_status) { + // success + case 0: + if (MIN_PACKET > skb->len || skb->len > MAX_PACKET) { + entry->state = rx_cleanup; + dev->stats.rx_errors++; + dev->stats.rx_length_errors++; + if (netif_msg_rx_err (dev)) + devdbg (dev, "rx length %d", skb->len); + } + break; + + // stalls need manual reset. this is rare ... except that + // when going through USB 2.0 TTs, unplug appears this way. + // we avoid the highspeed version of the ETIMEOUT/EILSEQ + // storm, recovering as needed. + case -EPIPE: + dev->stats.rx_errors++; + defer_kevent (dev, EVENT_RX_HALT); + // FALLTHROUGH + + // software-driven interface shutdown + case -ECONNRESET: // async unlink + case -ESHUTDOWN: // hardware gone + if (netif_msg_ifdown (dev)) + devdbg (dev, "rx shutdown, code %d", urb_status); + goto block; + + // we get controller i/o faults during khubd disconnect() delays. + // throttle down resubmits, to avoid log floods; just temporarily, + // so we still recover when the fault isn't a khubd delay. + case -EPROTO: // ehci + case -ETIMEDOUT: // ohci + case -EILSEQ: // uhci + dev->stats.rx_errors++; + if (!timer_pending (&dev->delay)) { + mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); + if (netif_msg_link (dev)) + devdbg (dev, "rx throttle %d", urb_status); + } +block: + entry->state = rx_cleanup; + entry->urb = urb; + urb = NULL; + break; + + // data overrun ... flush fifo? + case -EOVERFLOW: + dev->stats.rx_over_errors++; + // FALLTHROUGH + + default: + entry->state = rx_cleanup; + dev->stats.rx_errors++; + if (netif_msg_rx_err (dev)) + devdbg (dev, "rx status %d", urb_status); + break; + } + + defer_bh (dev, skb); + + if (urb) { + if (netif_running (dev->net) + && !test_bit (EVENT_RX_HALT, &dev->flags)) { + rx_submit (dev, urb, GFP_ATOMIC); + return; + } + usb_free_urb (urb); + } + if (netif_msg_rx_err (dev)) + devdbg (dev, "no read resubmitted"); +} + +static void intr_complete (struct urb *urb, struct pt_regs *regs) +{ + struct usbnet *dev = urb->context; + int status = urb->status; + + switch (status) { + /* success */ + case 0: + dev->driver_info->status(dev, urb); + break; + + /* software-driven interface shutdown */ + case -ENOENT: // urb killed + case -ESHUTDOWN: // hardware gone + if (netif_msg_ifdown (dev)) + devdbg (dev, "intr shutdown, code %d", status); + return; + + /* NOTE: not throttling like RX/TX, since this endpoint + * already polls infrequently + */ + default: + devdbg (dev, "intr status %d", status); + break; + } + + if (!netif_running (dev->net)) + return; + + memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); + status = usb_submit_urb (urb, GFP_ATOMIC); + if (status != 0 && netif_msg_timer (dev)) + deverr(dev, "intr resubmit --> %d", status); +} + +/*-------------------------------------------------------------------------*/ + +// unlink pending rx/tx; completion handlers do all other cleanup + +static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q) +{ + unsigned long flags; + struct sk_buff *skb, *skbnext; + int count = 0; + + spin_lock_irqsave (&q->lock, flags); + for (skb = q->next; skb != (struct sk_buff *) q; skb = skbnext) { + struct skb_data *entry; + struct urb *urb; + int retval; + + entry = (struct skb_data *) skb->cb; + urb = entry->urb; + skbnext = skb->next; + + // during some PM-driven resume scenarios, + // these (async) unlinks complete immediately + retval = usb_unlink_urb (urb); + if (retval != -EINPROGRESS && retval != 0) + devdbg (dev, "unlink urb err, %d", retval); + else + count++; + } + spin_unlock_irqrestore (&q->lock, flags); + return count; +} + + +/*-------------------------------------------------------------------------*/ + +// precondition: never called in_interrupt + +static int usbnet_stop (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + int temp; + DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup); + DECLARE_WAITQUEUE (wait, current); + + netif_stop_queue (net); + + if (netif_msg_ifdown (dev)) + devinfo (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld", + dev->stats.rx_packets, dev->stats.tx_packets, + dev->stats.rx_errors, dev->stats.tx_errors + ); + + // ensure there are no more active urbs + add_wait_queue (&unlink_wakeup, &wait); + dev->wait = &unlink_wakeup; + temp = unlink_urbs (dev, &dev->txq) + unlink_urbs (dev, &dev->rxq); + + // maybe wait for deletions to finish. + while (skb_queue_len (&dev->rxq) + && skb_queue_len (&dev->txq) + && skb_queue_len (&dev->done)) { + msleep(UNLINK_TIMEOUT_MS); + if (netif_msg_ifdown (dev)) + devdbg (dev, "waited for %d urb completions", temp); + } + dev->wait = NULL; + remove_wait_queue (&unlink_wakeup, &wait); + + usb_kill_urb(dev->interrupt); + + /* deferred work (task, timer, softirq) must also stop. + * can't flush_scheduled_work() until we drop rtnl (later), + * else workers could deadlock; so make workers a NOP. + */ + dev->flags = 0; + del_timer_sync (&dev->delay); + tasklet_kill (&dev->bh); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +// posts reads, and enables write queuing + +// precondition: never called in_interrupt + +static int usbnet_open (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + int retval = 0; + struct driver_info *info = dev->driver_info; + + // put into "known safe" state + if (info->reset && (retval = info->reset (dev)) < 0) { + if (netif_msg_ifup (dev)) + devinfo (dev, + "open reset fail (%d) usbnet usb-%s-%s, %s", + retval, + dev->udev->bus->bus_name, dev->udev->devpath, + info->description); + goto done; + } + + // insist peer be connected + if (info->check_connect && (retval = info->check_connect (dev)) < 0) { + if (netif_msg_ifup (dev)) + devdbg (dev, "can't open; %d", retval); + goto done; + } + + /* start any status interrupt transfer */ + if (dev->interrupt) { + retval = usb_submit_urb (dev->interrupt, GFP_KERNEL); + if (retval < 0) { + if (netif_msg_ifup (dev)) + deverr (dev, "intr submit %d", retval); + goto done; + } + } + + netif_start_queue (net); + if (netif_msg_ifup (dev)) { + char *framing; + + if (dev->driver_info->flags & FLAG_FRAMING_NC) + framing = "NetChip"; + else if (dev->driver_info->flags & FLAG_FRAMING_GL) + framing = "GeneSys"; + else if (dev->driver_info->flags & FLAG_FRAMING_Z) + framing = "Zaurus"; + else if (dev->driver_info->flags & FLAG_FRAMING_RN) + framing = "RNDIS"; + else if (dev->driver_info->flags & FLAG_FRAMING_AX) + framing = "ASIX"; + else + framing = "simple"; + + devinfo (dev, "open: enable queueing " + "(rx %d, tx %d) mtu %d %s framing", + RX_QLEN (dev), TX_QLEN (dev), dev->net->mtu, + framing); + } + + // delay posting reads until we're fully open + tasklet_schedule (&dev->bh); +done: + return retval; +} + +/*-------------------------------------------------------------------------*/ + +static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) +{ + struct usbnet *dev = netdev_priv(net); + + strncpy (info->driver, driver_name, sizeof info->driver); + strncpy (info->version, DRIVER_VERSION, sizeof info->version); + strncpy (info->fw_version, dev->driver_info->description, + sizeof info->fw_version); + usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); +} + +static u32 usbnet_get_link (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + /* If a check_connect is defined, return it's results */ + if (dev->driver_info->check_connect) + return dev->driver_info->check_connect (dev) == 0; + + /* Otherwise, we're up to avoid breaking scripts */ + return 1; +} + +static u32 usbnet_get_msglevel (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + return dev->msg_enable; +} + +static void usbnet_set_msglevel (struct net_device *net, u32 level) +{ + struct usbnet *dev = netdev_priv(net); + + dev->msg_enable = level; +} + +static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd) +{ +#ifdef NEED_MII + { + struct usbnet *dev = netdev_priv(net); + + if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL) + return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); + } +#endif + return -EOPNOTSUPP; +} + +/*-------------------------------------------------------------------------*/ + +/* work that cannot be done in interrupt context uses keventd. + * + * NOTE: with 2.5 we could do more of this using completion callbacks, + * especially now that control transfers can be queued. + */ +static void +kevent (void *data) +{ + struct usbnet *dev = data; + int status; + + /* usb_clear_halt() needs a thread context */ + if (test_bit (EVENT_TX_HALT, &dev->flags)) { + unlink_urbs (dev, &dev->txq); + status = usb_clear_halt (dev->udev, dev->out); + if (status < 0 && status != -EPIPE) { + if (netif_msg_tx_err (dev)) + deverr (dev, "can't clear tx halt, status %d", + status); + } else { + clear_bit (EVENT_TX_HALT, &dev->flags); + netif_wake_queue (dev->net); + } + } + if (test_bit (EVENT_RX_HALT, &dev->flags)) { + unlink_urbs (dev, &dev->rxq); + status = usb_clear_halt (dev->udev, dev->in); + if (status < 0 && status != -EPIPE) { + if (netif_msg_rx_err (dev)) + deverr (dev, "can't clear rx halt, status %d", + status); + } else { + clear_bit (EVENT_RX_HALT, &dev->flags); + tasklet_schedule (&dev->bh); + } + } + + /* tasklet could resubmit itself forever if memory is tight */ + if (test_bit (EVENT_RX_MEMORY, &dev->flags)) { + struct urb *urb = NULL; + + if (netif_running (dev->net)) + urb = usb_alloc_urb (0, GFP_KERNEL); + else + clear_bit (EVENT_RX_MEMORY, &dev->flags); + if (urb != NULL) { + clear_bit (EVENT_RX_MEMORY, &dev->flags); + rx_submit (dev, urb, GFP_KERNEL); + tasklet_schedule (&dev->bh); + } + } + + if (dev->flags) + devdbg (dev, "kevent done, flags = 0x%lx", + dev->flags); +} + +/*-------------------------------------------------------------------------*/ + +static void tx_complete (struct urb *urb, struct pt_regs *regs) +{ + struct sk_buff *skb = (struct sk_buff *) urb->context; + struct skb_data *entry = (struct skb_data *) skb->cb; + struct usbnet *dev = entry->dev; + + if (urb->status == 0) { + dev->stats.tx_packets++; + dev->stats.tx_bytes += entry->length; + } else { + dev->stats.tx_errors++; + + switch (urb->status) { + case -EPIPE: + defer_kevent (dev, EVENT_TX_HALT); + break; + + /* software-driven interface shutdown */ + case -ECONNRESET: // async unlink + case -ESHUTDOWN: // hardware gone + break; + + // like rx, tx gets controller i/o faults during khubd delays + // and so it uses the same throttling mechanism. + case -EPROTO: // ehci + case -ETIMEDOUT: // ohci + case -EILSEQ: // uhci + if (!timer_pending (&dev->delay)) { + mod_timer (&dev->delay, + jiffies + THROTTLE_JIFFIES); + if (netif_msg_link (dev)) + devdbg (dev, "tx throttle %d", + urb->status); + } + netif_stop_queue (dev->net); + break; + default: + if (netif_msg_tx_err (dev)) + devdbg (dev, "tx err %d", entry->urb->status); + break; + } + } + + urb->dev = NULL; + entry->state = tx_done; + defer_bh (dev, skb); +} + +/*-------------------------------------------------------------------------*/ + +static void usbnet_tx_timeout (struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + unlink_urbs (dev, &dev->txq); + tasklet_schedule (&dev->bh); + + // FIXME: device recovery -- reset? +} + +/*-------------------------------------------------------------------------*/ + +static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + int length; + int retval = NET_XMIT_SUCCESS; + struct urb *urb = NULL; + struct skb_data *entry; + struct driver_info *info = dev->driver_info; + unsigned long flags; +#ifdef CONFIG_USB_NET1080 + struct nc_header *header = NULL; + struct nc_trailer *trailer = NULL; +#endif /* CONFIG_USB_NET1080 */ + + // some devices want funky USB-level framing, for + // win32 driver (usually) and/or hardware quirks + if (info->tx_fixup) { + skb = info->tx_fixup (dev, skb, GFP_ATOMIC); + if (!skb) { + if (netif_msg_tx_err (dev)) + devdbg (dev, "can't tx_fixup skb"); + goto drop; + } + } + length = skb->len; + + if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) { + if (netif_msg_tx_err (dev)) + devdbg (dev, "no urb"); + goto drop; + } + + entry = (struct skb_data *) skb->cb; + entry->urb = urb; + entry->dev = dev; + entry->state = tx_start; + entry->length = length; + + // FIXME: reorganize a bit, so that fixup() fills out NetChip + // framing too. (Packet ID update needs the spinlock...) + // [ BETTER: we already own net->xmit_lock, that's enough ] + +#ifdef CONFIG_USB_NET1080 + if (info->flags & FLAG_FRAMING_NC) { + header = (struct nc_header *) skb_push (skb, sizeof *header); + header->hdr_len = cpu_to_le16 (sizeof (*header)); + header->packet_len = cpu_to_le16 (length); + if (!((skb->len + sizeof *trailer) & 0x01)) + *skb_put (skb, 1) = PAD_BYTE; + trailer = (struct nc_trailer *) skb_put (skb, sizeof *trailer); + } +#endif /* CONFIG_USB_NET1080 */ + + usb_fill_bulk_urb (urb, dev->udev, dev->out, + skb->data, skb->len, tx_complete, skb); + urb->transfer_flags |= URB_ASYNC_UNLINK; + + /* don't assume the hardware handles USB_ZERO_PACKET + * NOTE: strictly conforming cdc-ether devices should expect + * the ZLP here, but ignore the one-byte packet. + * + * FIXME zero that byte, if it doesn't require a new skb. + */ + if ((length % dev->maxpacket) == 0) + urb->transfer_buffer_length++; + + spin_lock_irqsave (&dev->txq.lock, flags); + +#ifdef CONFIG_USB_NET1080 + if (info->flags & FLAG_FRAMING_NC) { + header->packet_id = cpu_to_le16 ((u16)dev->dev_packet_id++); + put_unaligned (header->packet_id, &trailer->packet_id); +#if 0 + devdbg (dev, "frame >tx h %d p %d id %d", + header->hdr_len, header->packet_len, + header->packet_id); +#endif + } +#endif /* CONFIG_USB_NET1080 */ + + switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { + case -EPIPE: + netif_stop_queue (net); + defer_kevent (dev, EVENT_TX_HALT); + break; + default: + if (netif_msg_tx_err (dev)) + devdbg (dev, "tx: submit urb err %d", retval); + break; + case 0: + net->trans_start = jiffies; + __skb_queue_tail (&dev->txq, skb); + if (dev->txq.qlen >= TX_QLEN (dev)) + netif_stop_queue (net); + } + spin_unlock_irqrestore (&dev->txq.lock, flags); + + if (retval) { + if (netif_msg_tx_err (dev)) + devdbg (dev, "drop, code %d", retval); +drop: + retval = NET_XMIT_SUCCESS; + dev->stats.tx_dropped++; + if (skb) + dev_kfree_skb_any (skb); + usb_free_urb (urb); + } else if (netif_msg_tx_queued (dev)) { + devdbg (dev, "> tx, len %d, type 0x%x", + length, skb->protocol); + } + return retval; +} + + +/*-------------------------------------------------------------------------*/ + +// tasklet (work deferred from completions, in_irq) or timer + +static void usbnet_bh (unsigned long param) +{ + struct usbnet *dev = (struct usbnet *) param; + struct sk_buff *skb; + struct skb_data *entry; + + while ((skb = skb_dequeue (&dev->done))) { + entry = (struct skb_data *) skb->cb; + switch (entry->state) { + case rx_done: + entry->state = rx_cleanup; + rx_process (dev, skb); + continue; + case tx_done: + case rx_cleanup: + usb_free_urb (entry->urb); + dev_kfree_skb (skb); + continue; + default: + devdbg (dev, "bogus skb state %d", entry->state); + } + } + + // waiting for all pending urbs to complete? + if (dev->wait) { + if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) == 0) { + wake_up (dev->wait); + } + + // or are we maybe short a few urbs? + } else if (netif_running (dev->net) + && netif_device_present (dev->net) + && !timer_pending (&dev->delay) + && !test_bit (EVENT_RX_HALT, &dev->flags)) { + int temp = dev->rxq.qlen; + int qlen = RX_QLEN (dev); + + if (temp < qlen) { + struct urb *urb; + int i; + + // don't refill the queue all at once + for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) { + urb = usb_alloc_urb (0, GFP_ATOMIC); + if (urb != NULL) + rx_submit (dev, urb, GFP_ATOMIC); + } + if (temp != dev->rxq.qlen && netif_msg_link (dev)) + devdbg (dev, "rxqlen %d --> %d", + temp, dev->rxq.qlen); + if (dev->rxq.qlen < qlen) + tasklet_schedule (&dev->bh); + } + if (dev->txq.qlen < TX_QLEN (dev)) + netif_wake_queue (dev->net); + } +} + + + +/*------------------------------------------------------------------------- + * + * USB Device Driver support + * + *-------------------------------------------------------------------------*/ + +// precondition: never called in_interrupt + +static void usbnet_disconnect (struct usb_interface *intf) +{ + struct usbnet *dev; + struct usb_device *xdev; + struct net_device *net; + + dev = usb_get_intfdata(intf); + usb_set_intfdata(intf, NULL); + if (!dev) + return; + + xdev = interface_to_usbdev (intf); + + if (netif_msg_probe (dev)) + devinfo (dev, "unregister usbnet usb-%s-%s, %s", + xdev->bus->bus_name, xdev->devpath, + dev->driver_info->description); + + net = dev->net; + unregister_netdev (net); + + /* we don't hold rtnl here ... */ + flush_scheduled_work (); + + if (dev->driver_info->unbind) + dev->driver_info->unbind (dev, intf); + + free_netdev(net); + usb_put_dev (xdev); +} + + +/*-------------------------------------------------------------------------*/ + +static struct ethtool_ops usbnet_ethtool_ops; + +// precondition: never called in_interrupt + +static int +usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) +{ + struct usbnet *dev; + struct net_device *net; + struct usb_host_interface *interface; + struct driver_info *info; + struct usb_device *xdev; + int status; + + info = (struct driver_info *) prod->driver_info; + if (!info) { + dev_dbg (&udev->dev, "blacklisted by %s\n", driver_name); + return -ENODEV; + } + xdev = interface_to_usbdev (udev); + interface = udev->cur_altsetting; + + usb_get_dev (xdev); + + status = -ENOMEM; + + // set up our own records + net = alloc_etherdev(sizeof(*dev)); + if (!net) { + dbg ("can't kmalloc dev"); + goto out; + } + + dev = netdev_priv(net); + dev->udev = xdev; + dev->driver_info = info; + dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV + | NETIF_MSG_PROBE | NETIF_MSG_LINK); + skb_queue_head_init (&dev->rxq); + skb_queue_head_init (&dev->txq); + skb_queue_head_init (&dev->done); + dev->bh.func = usbnet_bh; + dev->bh.data = (unsigned long) dev; + INIT_WORK (&dev->kevent, kevent, dev); + dev->delay.function = usbnet_bh; + dev->delay.data = (unsigned long) dev; + init_timer (&dev->delay); + + SET_MODULE_OWNER (net); + dev->net = net; + strcpy (net->name, "usb%d"); + memcpy (net->dev_addr, node_id, sizeof node_id); + +#if 0 +// dma_supported() is deeply broken on almost all architectures + // possible with some EHCI controllers + if (dma_supported (&udev->dev, DMA_64BIT_MASK)) + net->features |= NETIF_F_HIGHDMA; +#endif + + net->change_mtu = usbnet_change_mtu; + net->get_stats = usbnet_get_stats; + net->hard_start_xmit = usbnet_start_xmit; + net->open = usbnet_open; + net->stop = usbnet_stop; + net->watchdog_timeo = TX_TIMEOUT_JIFFIES; + net->tx_timeout = usbnet_tx_timeout; + net->do_ioctl = usbnet_ioctl; + net->ethtool_ops = &usbnet_ethtool_ops; + + // allow device-specific bind/init procedures + // NOTE net->name still not usable ... + if (info->bind) { + status = info->bind (dev, udev); + // heuristic: "usb%d" for links we know are two-host, + // else "eth%d" when there's reasonable doubt. userspace + // can rename the link if it knows better. + if ((dev->driver_info->flags & FLAG_ETHER) != 0 + && (net->dev_addr [0] & 0x02) == 0) + strcpy (net->name, "eth%d"); + } else if (!info->in || info->out) + status = get_endpoints (dev, udev); + else { + dev->in = usb_rcvbulkpipe (xdev, info->in); + dev->out = usb_sndbulkpipe (xdev, info->out); + if (!(info->flags & FLAG_NO_SETINT)) + status = usb_set_interface (xdev, + interface->desc.bInterfaceNumber, + interface->desc.bAlternateSetting); + else + status = 0; + + } + + if (status == 0 && dev->status) + status = init_status (dev, udev); + if (status < 0) + goto out1; + + dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); + + SET_NETDEV_DEV(net, &udev->dev); + status = register_netdev (net); + if (status) + goto out3; + if (netif_msg_probe (dev)) + devinfo (dev, "register usbnet at usb-%s-%s, %s, " + "%02x:%02x:%02x:%02x:%02x:%02x", + xdev->bus->bus_name, xdev->devpath, + dev->driver_info->description, + net->dev_addr [0], net->dev_addr [1], + net->dev_addr [2], net->dev_addr [3], + net->dev_addr [4], net->dev_addr [5]); + + // ok, it's ready to go. + usb_set_intfdata (udev, dev); + + // start as if the link is up + netif_device_attach (net); + + return 0; + +out3: + if (info->unbind) + info->unbind (dev, udev); +out1: + free_netdev(net); +out: + usb_put_dev(xdev); + return status; +} + +/*-------------------------------------------------------------------------*/ + +#ifdef CONFIG_PM + +static int usbnet_suspend (struct usb_interface *intf, u32 state) +{ + struct usbnet *dev = usb_get_intfdata(intf); + + netif_device_detach (dev->net); + return 0; +} + +static int usbnet_resume (struct usb_interface *intf) +{ + struct usbnet *dev = usb_get_intfdata(intf); + + netif_device_attach (dev->net); + return 0; +} + +#else /* !CONFIG_PM */ + +#define usbnet_suspend NULL +#define usbnet_resume NULL + +#endif /* CONFIG_PM */ + +/*-------------------------------------------------------------------------*/ + +#ifndef HAVE_HARDWARE +#error You need to configure some hardware for this driver +#endif + +/* + * chip vendor names won't normally be on the cables, and + * may not be on the device. + */ + +static const struct usb_device_id products [] = { + +#ifdef CONFIG_USB_ALI_M5632 +{ + USB_DEVICE (0x0402, 0x5632), // ALi defaults + .driver_info = (unsigned long) &ali_m5632_info, +}, +#endif + +#ifdef CONFIG_USB_AN2720 +{ + USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults + .driver_info = (unsigned long) &an2720_info, +}, { + USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET + .driver_info = (unsigned long) &an2720_info, +}, +#endif + +#ifdef CONFIG_USB_BELKIN +{ + USB_DEVICE (0x050d, 0x0004), // Belkin + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x056c, 0x8100), // eTEK + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK) + .driver_info = (unsigned long) &belkin_info, +}, +#endif + +#ifdef CONFIG_USB_AX8817X +{ + // Linksys USB200M + USB_DEVICE (0x077b, 0x2226), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Netgear FA120 + USB_DEVICE (0x0846, 0x1040), + .driver_info = (unsigned long) &netgear_fa120_info, +}, { + // DLink DUB-E100 + USB_DEVICE (0x2001, 0x1a00), + .driver_info = (unsigned long) &dlink_dub_e100_info, +}, { + // Intellinet, ST Lab USB Ethernet + USB_DEVICE (0x0b95, 0x1720), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Hawking UF200, TrendNet TU2-ET100 + USB_DEVICE (0x07b8, 0x420a), + .driver_info = (unsigned long) &hawking_uf200_info, +}, { + // Billionton Systems, USB2AR + USB_DEVICE (0x08dd, 0x90ff), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // ATEN UC210T + USB_DEVICE (0x0557, 0x2009), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Buffalo LUA-U2-KTX + USB_DEVICE (0x0411, 0x003d), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" + USB_DEVICE (0x6189, 0x182d), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // corega FEther USB2-TX + USB_DEVICE (0x07aa, 0x0017), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Surecom EP-1427X-2 + USB_DEVICE (0x1189, 0x0893), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // goodway corp usb gwusb2e + USB_DEVICE (0x1631, 0x6200), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // ASIX AX88772 10/100 + USB_DEVICE (0x0b95, 0x7720), + .driver_info = (unsigned long) &ax88772_info, +}, +#endif + +#ifdef CONFIG_USB_EPSON2888 +{ + USB_DEVICE (0x0525, 0x2888), // EPSON USB client + .driver_info = (unsigned long) &epson2888_info, +}, +#endif + +#ifdef CONFIG_USB_GENESYS +{ + USB_DEVICE (0x05e3, 0x0502), // GL620USB-A + .driver_info = (unsigned long) &genelink_info, +}, + /* NOT: USB_DEVICE (0x05e3, 0x0501), // GL620USB + * that's half duplex, not currently supported + */ +#endif + +#ifdef CONFIG_USB_NET1080 +{ + USB_DEVICE (0x0525, 0x1080), // NetChip ref design + .driver_info = (unsigned long) &net1080_info, +}, { + USB_DEVICE (0x06D0, 0x0622), // Laplink Gold + .driver_info = (unsigned long) &net1080_info, +}, +#endif + +#ifdef CONFIG_USB_PL2301 +{ + USB_DEVICE (0x067b, 0x0000), // PL-2301 + .driver_info = (unsigned long) &prolific_info, +}, { + USB_DEVICE (0x067b, 0x0001), // PL-2302 + .driver_info = (unsigned long) &prolific_info, +}, +#endif + +#ifdef CONFIG_USB_KC2190 +{ + USB_DEVICE (0x050f, 0x0190), // KC-190 + .driver_info = (unsigned long) &kc2190_info, +}, +#endif + +#ifdef CONFIG_USB_RNDIS +{ + /* RNDIS is MSFT's un-official variant of CDC ACM */ + USB_INTERFACE_INFO (USB_CLASS_COMM, 2 /* ACM */, 0x0ff), + .driver_info = (unsigned long) &rndis_info, +}, +#endif + +#ifdef CONFIG_USB_ARMLINUX +/* + * SA-1100 using standard ARM Linux kernels, or compatible. + * Often used when talking to Linux PDAs (iPaq, Yopy, etc). + * The sa-1100 "usb-eth" driver handles the basic framing. + * + * PXA25x or PXA210 ... these use a "usb-eth" driver much like + * the sa1100 one, but hardware uses different endpoint numbers. + * + * Or the Linux "Ethernet" gadget on hardware that can't talk + * CDC Ethernet (e.g., no altsettings), in either of two modes: + * - acting just like the old "usb-eth" firmware, though + * the implementation is different + * - supporting RNDIS as the first/default configuration for + * MS-Windows interop; Linux needs to use the other config + */ +{ + // 1183 = 0x049F, both used as hex values? + // Compaq "Itsy" vendor/product id + USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible + .driver_info = (unsigned long) &linuxdev_info, +}, { + USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy" + .driver_info = (unsigned long) &yopy_info, +}, { + USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader + .driver_info = (unsigned long) &blob_info, +}, { + // Linux Ethernet/RNDIS gadget on pxa210/25x/26x + // e.g. Gumstix, current OpenZaurus, ... + USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203), + .driver_info = (unsigned long) &linuxdev_info, +}, +#endif + +#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER) +/* + * SA-1100 based Sharp Zaurus ("collie"), or compatible. + * Same idea as above, but different framing. + * + * PXA-2xx based models are also lying-about-cdc. + * Some models don't even tell the same lies ... + * + * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries, + * unlike the older ones with 2.4 "embedix" kernels. + * + * NOTE: These entries do double-duty, serving as blacklist entries + * whenever Zaurus support isn't enabled, but CDC Ethernet is. + */ +#define ZAURUS_MASTER_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8004, + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_STRONGARM_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9031, /* C-750 C-760 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + /* reported with some C860 units */ + .idProduct = 0x9050, /* C-860 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +#ifdef CONFIG_USB_ZAURUS + /* at least some (reports vary) C-860 units have very different + * lies about their standards support. + */ +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + /* reported with some C860 units */ + .idProduct = 0x9031, /* C-860 */ + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, + .bInterfaceProtocol = USB_CDC_PROTO_NONE, + .driver_info = (unsigned long) &zaurus_pxa_mdlm_info, +#endif +}, + +/* Olympus has some models with a Zaurus-compatible option. + * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x07B4, + .idProduct = 0x0F02, /* R-1000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = OLYMPUS_MXL_INFO, +}, +#endif + +#ifdef CONFIG_USB_CDCETHER +{ + /* CDC Ether uses two interfaces, not necessarily consecutive. + * We match the main interface, ignoring the optional device + * class so we could handle devices that aren't exclusively + * CDC ether. + * + * NOTE: this match must come AFTER entries working around + * bugs/quirks in a given product (like Zaurus, above). + */ + USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &cdc_info, +}, +#endif + + { }, // END +}; +MODULE_DEVICE_TABLE (usb, products); + +static struct usb_driver usbnet_driver = { + .owner = THIS_MODULE, + .name = driver_name, + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +/* Default ethtool_ops assigned. Devices can override in their bind() routine */ +static struct ethtool_ops usbnet_ethtool_ops = { + .get_drvinfo = usbnet_get_drvinfo, + .get_link = usbnet_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, +}; + +/*-------------------------------------------------------------------------*/ + +static int __init usbnet_init (void) +{ + // compiler should optimize these out + BUG_ON (sizeof (((struct sk_buff *)0)->cb) + < sizeof (struct skb_data)); +#ifdef CONFIG_USB_CDCETHER + BUG_ON ((sizeof (((struct usbnet *)0)->data) + < sizeof (struct cdc_state))); +#endif + + random_ether_addr(node_id); + + return usb_register(&usbnet_driver); +} +module_init (usbnet_init); + +static void __exit usbnet_exit (void) +{ + usb_deregister (&usbnet_driver); +} +module_exit (usbnet_exit); + +MODULE_AUTHOR ("David Brownell <dbrownell@users.sourceforge.net>"); +MODULE_DESCRIPTION ("USB Host-to-Host Link Drivers (numerous vendors)"); +MODULE_LICENSE ("GPL"); diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c new file mode 100644 index 00000000000..938025e2c64 --- /dev/null +++ b/drivers/usb/net/zd1201.c @@ -0,0 +1,1905 @@ +/* + * Driver for ZyDAS zd1201 based wireless USB devices. + * + * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * Parts of this driver have been derived from a wlan-ng version + * modified by ZyDAS. They also made documentation available, thanks! + * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. + */ + +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/wireless.h> +#include <net/iw_handler.h> +#include <linux/string.h> +#include <linux/if_arp.h> +#include <linux/firmware.h> +#include <ieee802_11.h> +#include "zd1201.h" + +static struct usb_device_id zd1201_table[] = { + {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */ + {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */ + {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */ + {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */ + {} +}; + +static int ap = 0; /* Are we an AP or a normal station? */ + +#define ZD1201_VERSION "0.15" + +MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); +MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters"); +MODULE_VERSION(ZD1201_VERSION); +MODULE_LICENSE("GPL"); +module_param(ap, int, 0); +MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded"); +MODULE_DEVICE_TABLE(usb, zd1201_table); + + +int zd1201_fw_upload(struct usb_device *dev, int apfw) +{ + const struct firmware *fw_entry; + char* data; + unsigned long len; + int err; + unsigned char ret; + char *buf; + char *fwfile; + + if (apfw) + fwfile = "zd1201-ap.fw"; + else + fwfile = "zd1201.fw"; + + err = request_firmware(&fw_entry, fwfile, &dev->dev); + if (err) { + dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile); + dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n"); + dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info\n"); + return err; + } + + data = fw_entry->data; + len = fw_entry->size; + + buf = kmalloc(1024, GFP_ATOMIC); + if (!buf) + goto exit; + + while (len > 0) { + int translen = (len > 1024) ? 1024 : len; + memcpy(buf, data, translen); + + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0, + USB_DIR_OUT | 0x40, 0, 0, buf, translen, + ZD1201_FW_TIMEOUT); + if (err < 0) + goto exit; + + len -= translen; + data += translen; + } + + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2, + USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT); + if (err < 0) + goto exit; + + err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4, + USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT); + if (err < 0) + goto exit; + + if (ret & 0x80) { + err = -EIO; + goto exit; + } + + err = 0; +exit: + if (buf) + kfree(buf); + release_firmware(fw_entry); + return err; +} + +void zd1201_usbfree(struct urb *urb, struct pt_regs *regs) +{ + struct zd1201 *zd = urb->context; + + switch(urb->status) { + case -EILSEQ: + case -ENODEV: + case -ETIMEDOUT: + case -ENOENT: + case -EPIPE: + case -EOVERFLOW: + case -ESHUTDOWN: + dev_warn(&zd->usb->dev, "%s: urb failed: %d\n", + zd->dev->name, urb->status); + } + + kfree(urb->transfer_buffer); + usb_free_urb(urb); + return; +} + +/* cmdreq message: + u32 type + u16 cmd + u16 parm0 + u16 parm1 + u16 parm2 + u8 pad[4] + + total: 4 + 2 + 2 + 2 + 2 + 4 = 16 +*/ +int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0, int parm1, int parm2) +{ + unsigned char *command; + int ret; + struct urb *urb; + + command = kmalloc(16, GFP_ATOMIC); + if (!command) + return -ENOMEM; + + *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ); + *((__le16*)&command[4]) = cpu_to_le16(cmd); + *((__le16*)&command[6]) = cpu_to_le16(parm0); + *((__le16*)&command[8]) = cpu_to_le16(parm1); + *((__le16*)&command[10])= cpu_to_le16(parm2); + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + kfree(command); + return -ENOMEM; + } + usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2), + command, 16, zd1201_usbfree, zd); + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret) { + kfree(command); + usb_free_urb(urb); + } + + return ret; +} + +/* Callback after sending out a packet */ +void zd1201_usbtx(struct urb *urb, struct pt_regs *regs) +{ + struct zd1201 *zd = urb->context; + netif_wake_queue(zd->dev); + return; +} + +/* Incomming data */ +void zd1201_usbrx(struct urb *urb, struct pt_regs *regs) +{ + struct zd1201 *zd = urb->context; + int free = 0; + unsigned char *data = urb->transfer_buffer; + struct sk_buff *skb; + unsigned char type; + + if (!zd) { + free = 1; + goto exit; + } + + switch(urb->status) { + case -EILSEQ: + case -ENODEV: + case -ETIMEDOUT: + case -ENOENT: + case -EPIPE: + case -EOVERFLOW: + case -ESHUTDOWN: + dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n", + zd->dev->name, urb->status); + free = 1; + goto exit; + } + + if (urb->status != 0 || urb->actual_length == 0) + goto resubmit; + + type = data[0]; + if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) { + memcpy(zd->rxdata, data, urb->actual_length); + zd->rxlen = urb->actual_length; + zd->rxdatas = 1; + wake_up(&zd->rxdataq); + } + /* Info frame */ + if (type == ZD1201_PACKET_INQUIRE) { + int i = 0; + unsigned short infotype, framelen, copylen; + framelen = le16_to_cpu(*(__le16*)&data[4]); + infotype = le16_to_cpu(*(__le16*)&data[6]); + + if (infotype == ZD1201_INF_LINKSTATUS) { + short linkstatus; + + linkstatus = le16_to_cpu(*(__le16*)&data[8]); + switch(linkstatus) { + case 1: + netif_carrier_on(zd->dev); + break; + case 2: + netif_carrier_off(zd->dev); + break; + case 3: + netif_carrier_off(zd->dev); + break; + case 4: + netif_carrier_on(zd->dev); + break; + default: + netif_carrier_off(zd->dev); + } + goto resubmit; + } + if (infotype == ZD1201_INF_ASSOCSTATUS) { + short status = le16_to_cpu(*(__le16*)(data+8)); + int event; + union iwreq_data wrqu; + + switch (status) { + case ZD1201_ASSOCSTATUS_STAASSOC: + case ZD1201_ASSOCSTATUS_REASSOC: + event = IWEVREGISTERED; + break; + case ZD1201_ASSOCSTATUS_DISASSOC: + case ZD1201_ASSOCSTATUS_ASSOCFAIL: + case ZD1201_ASSOCSTATUS_AUTHFAIL: + default: + event = IWEVEXPIRED; + } + memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN); + wrqu.addr.sa_family = ARPHRD_ETHER; + + /* Send event to user space */ + wireless_send_event(zd->dev, event, &wrqu, NULL); + + goto resubmit; + } + if (infotype == ZD1201_INF_AUTHREQ) { + union iwreq_data wrqu; + + memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN); + wrqu.addr.sa_family = ARPHRD_ETHER; + /* There isn't a event that trully fits this request. + We assume that userspace will be smart enough to + see a new station being expired and sends back a + authstation ioctl to authorize it. */ + wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL); + goto resubmit; + } + /* Other infotypes are handled outside this handler */ + zd->rxlen = 0; + while (i < urb->actual_length) { + copylen = le16_to_cpu(*(__le16*)&data[i+2]); + /* Sanity check, sometimes we get junk */ + if (copylen+zd->rxlen > sizeof(zd->rxdata)) + break; + memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen); + zd->rxlen += copylen; + i += 64; + } + if (i >= urb->actual_length) { + zd->rxdatas = 1; + wake_up(&zd->rxdataq); + } + goto resubmit; + } + /* Actual data */ + if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) { + int datalen = urb->actual_length-1; + unsigned short len, fc, seq; + struct hlist_node *node; + + len = ntohs(*(__be16 *)&data[datalen-2]); + if (len>datalen) + len=datalen; + fc = le16_to_cpu(*(__le16 *)&data[datalen-16]); + seq = le16_to_cpu(*(__le16 *)&data[datalen-24]); + + if(zd->monitor) { + if (datalen < 24) + goto resubmit; + if (!(skb = dev_alloc_skb(datalen+24))) + goto resubmit; + + memcpy(skb_put(skb, 2), &data[datalen-16], 2); + memcpy(skb_put(skb, 2), &data[datalen-2], 2); + memcpy(skb_put(skb, 6), &data[datalen-14], 6); + memcpy(skb_put(skb, 6), &data[datalen-22], 6); + memcpy(skb_put(skb, 6), &data[datalen-8], 6); + memcpy(skb_put(skb, 2), &data[datalen-24], 2); + memcpy(skb_put(skb, len), data, len); + skb->dev = zd->dev; + skb->dev->last_rx = jiffies; + skb->protocol = eth_type_trans(skb, zd->dev); + zd->stats.rx_packets++; + zd->stats.rx_bytes += skb->len; + netif_rx(skb); + goto resubmit; + } + + if ((seq & IEEE802_11_SCTL_FRAG) || + (fc & IEEE802_11_FCTL_MOREFRAGS)) { + struct zd1201_frag *frag = NULL; + char *ptr; + + if (datalen<14) + goto resubmit; + if ((seq & IEEE802_11_SCTL_FRAG) == 0) { + frag = kmalloc(sizeof(struct zd1201_frag*), + GFP_ATOMIC); + if (!frag) + goto resubmit; + skb = dev_alloc_skb(IEEE802_11_DATA_LEN +14+2); + if (!skb) { + kfree(frag); + goto resubmit; + } + frag->skb = skb; + frag->seq = seq & IEEE802_11_SCTL_SEQ; + skb_reserve(skb, 2); + memcpy(skb_put(skb, 12), &data[datalen-14], 12); + memcpy(skb_put(skb, 2), &data[6], 2); + memcpy(skb_put(skb, len), data+8, len); + hlist_add_head(&frag->fnode, &zd->fraglist); + goto resubmit; + } + hlist_for_each_entry(frag, node, &zd->fraglist, fnode) + if(frag->seq == (seq&IEEE802_11_SCTL_SEQ)) + break; + if (!frag) + goto resubmit; + skb = frag->skb; + ptr = skb_put(skb, len); + if (ptr) + memcpy(ptr, data+8, len); + if (fc & IEEE802_11_FCTL_MOREFRAGS) + goto resubmit; + hlist_del_init(&frag->fnode); + kfree(frag); + /* Fallthrough */ + } else { + if (datalen<14) + goto resubmit; + skb = dev_alloc_skb(len + 14 + 2); + if (!skb) + goto resubmit; + skb_reserve(skb, 2); + memcpy(skb_put(skb, 12), &data[datalen-14], 12); + memcpy(skb_put(skb, 2), &data[6], 2); + memcpy(skb_put(skb, len), data+8, len); + } + skb->dev = zd->dev; + skb->dev->last_rx = jiffies; + skb->protocol = eth_type_trans(skb, zd->dev); + zd->stats.rx_packets++; + zd->stats.rx_bytes += skb->len; + netif_rx(skb); + } +resubmit: + memset(data, 0, ZD1201_RXSIZE); + + urb->status = 0; + urb->dev = zd->usb; + if(usb_submit_urb(urb, GFP_ATOMIC)) + free = 1; + +exit: + if (free) { + zd->rxlen = 0; + zd->rxdatas = 1; + wake_up(&zd->rxdataq); + kfree(urb->transfer_buffer); + } + return; +} + +static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata, + unsigned int riddatalen) +{ + int err; + int i = 0; + int code; + int rid_fid; + int length; + unsigned char *pdata; + + zd->rxdatas = 0; + err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0); + if (err) + return err; + + wait_event_interruptible(zd->rxdataq, zd->rxdatas); + if (!zd->rxlen) + return -EIO; + + code = le16_to_cpu(*(__le16*)(&zd->rxdata[4])); + rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6])); + length = le16_to_cpu(*(__le16*)(&zd->rxdata[8])); + if (length > zd->rxlen) + length = zd->rxlen-6; + + /* If access bit is not on, then error */ + if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid ) + return -EINVAL; + + /* Not enough buffer for allocating data */ + if (riddatalen != (length - 4)) { + dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n", + riddatalen, zd->rxlen, length, rid, rid_fid); + return -ENODATA; + } + + zd->rxdatas = 0; + /* Issue SetRxRid commnd */ + err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length); + if (err) + return err; + + /* Receive RID record from resource packets */ + wait_event_interruptible(zd->rxdataq, zd->rxdatas); + if (!zd->rxlen) + return -EIO; + + if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) { + dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n", + zd->rxdata[zd->rxlen-1]); + return -EINVAL; + } + + /* Set the data pointer and received data length */ + pdata = zd->rxdata; + length = zd->rxlen; + + do { + int actual_length; + + actual_length = (length > 64) ? 64 : length; + + if(pdata[0] != 0x3) { + dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n", + pdata[0]); + return -EINVAL; + } + + if (actual_length != 64) { + /* Trim the last packet type byte */ + actual_length--; + } + + /* Skip the 4 bytes header (RID length and RID) */ + if(i == 0) { + pdata += 8; + actual_length -= 8; + } + else { + pdata += 4; + actual_length -= 4; + } + + memcpy(riddata, pdata, actual_length); + riddata += actual_length; + pdata += actual_length; + length -= 64; + i++; + } while (length > 0); + + return 0; +} + +/* + * resreq: + * byte type + * byte sequence + * u16 reserved + * byte data[12] + * total: 16 + */ +static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait) +{ + int err; + unsigned char *request; + int reqlen; + char seq=0; + struct urb *urb; + unsigned int gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC; + + len += 4; /* first 4 are for header */ + + zd->rxdatas = 0; + zd->rxlen = 0; + for (seq=0; len > 0; seq++) { + request = kmalloc(16, gfp_mask); + if (!request) + return -ENOMEM; + urb = usb_alloc_urb(0, gfp_mask); + if (!urb) { + kfree(request); + return -ENOMEM; + } + memset(request, 0, 16); + reqlen = len>12 ? 12 : len; + request[0] = ZD1201_USB_RESREQ; + request[1] = seq; + request[2] = 0; + request[3] = 0; + if (request[1] == 0) { + /* add header */ + *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2); + *(__le16*)&request[6] = cpu_to_le16(rid); + memcpy(request+8, buf, reqlen-4); + buf += reqlen-4; + } else { + memcpy(request+4, buf, reqlen); + buf += reqlen; + } + + len -= reqlen; + + usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, + zd->endp_out2), request, 16, zd1201_usbfree, zd); + err = usb_submit_urb(urb, gfp_mask); + if (err) + goto err; + } + + request = kmalloc(16, gfp_mask); + if (!request) + return -ENOMEM; + urb = usb_alloc_urb(0, gfp_mask); + if (!urb) { + kfree(request); + return -ENOMEM; + } + *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ); + *((__le16*)&request[4]) = + cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT); + *((__le16*)&request[6]) = cpu_to_le16(rid); + *((__le16*)&request[8]) = cpu_to_le16(0); + *((__le16*)&request[10]) = cpu_to_le16(0); + usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2), + request, 16, zd1201_usbfree, zd); + err = usb_submit_urb(urb, gfp_mask); + if (err) + goto err; + + if (wait) { + wait_event_interruptible(zd->rxdataq, zd->rxdatas); + if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) { + dev_dbg(&zd->usb->dev, "wrong or no RID received\n"); + } + } + + return 0; +err: + kfree(request); + usb_free_urb(urb); + return err; +} + +static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val) +{ + int err; + __le16 zdval; + + err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16)); + if (err) + return err; + *val = le16_to_cpu(zdval); + return 0; +} + +static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val) +{ + __le16 zdval = cpu_to_le16(val); + return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1)); +} + +int zd1201_drvr_start(struct zd1201 *zd) +{ + int err, i; + short max; + __le16 zdmax; + unsigned char *buffer; + + buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + memset(buffer, 0, ZD1201_RXSIZE); + + usb_fill_bulk_urb(zd->rx_urb, zd->usb, + usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE, + zd1201_usbrx, zd); + + err = usb_submit_urb(zd->rx_urb, GFP_KERNEL); + if (err) + goto err_buffer; + + err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); + if (err) + goto err_urb; + + err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax, + sizeof(__le16)); + if (err) + goto err_urb; + + max = le16_to_cpu(zdmax); + for (i=0; i<max; i++) { + err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0); + if (err) + goto err_urb; + } + + return 0; + +err_urb: + usb_kill_urb(zd->rx_urb); + return err; +err_buffer: + kfree(buffer); + return err; +} + +/* Magic alert: The firmware doesn't seem to like the MAC state being + * toggled in promisc (aka monitor) mode. + * (It works a number of times, but will halt eventually) + * So we turn it of before disabling and on after enabling if needed. + */ +static int zd1201_enable(struct zd1201 *zd) +{ + int err; + + if (zd->mac_enabled) + return 0; + + err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0); + if (!err) + zd->mac_enabled = 1; + + if (zd->monitor) + err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1); + + return err; +} + +static int zd1201_disable(struct zd1201 *zd) +{ + int err; + + if (!zd->mac_enabled) + return 0; + if (zd->monitor) { + err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); + if (err) + return err; + } + + err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0); + if (!err) + zd->mac_enabled = 0; + return err; +} + +static int zd1201_mac_reset(struct zd1201 *zd) +{ + if (!zd->mac_enabled) + return 0; + zd1201_disable(zd); + return zd1201_enable(zd); +} + +static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen) +{ + int err, val; + char buf[IW_ESSID_MAX_SIZE+2]; + + err = zd1201_disable(zd); + if (err) + return err; + + val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; + val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val); + if (err) + return err; + + *(__le16 *)buf = cpu_to_le16(essidlen); + memcpy(buf+2, essid, essidlen); + if (!zd->ap) { /* Normal station */ + err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, + IW_ESSID_MAX_SIZE+2, 1); + if (err) + return err; + } else { /* AP */ + err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf, + IW_ESSID_MAX_SIZE+2, 1); + if (err) + return err; + } + + err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, + zd->dev->dev_addr, zd->dev->addr_len, 1); + if (err) + return err; + + err = zd1201_enable(zd); + if (err) + return err; + + msleep(100); + return 0; +} + +static int zd1201_net_open(struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + /* Start MAC with wildcard if no essid set */ + if (!zd->mac_enabled) + zd1201_join(zd, zd->essid, zd->essidlen); + netif_start_queue(dev); + + return 0; +} + +static int zd1201_net_stop(struct net_device *dev) +{ + netif_stop_queue(dev); + + return 0; +} + +/* + RFC 1042 encapsulates Ethernet frames in 802.11 frames + by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0 + (0x00, 0x00, 0x00). Zd requires an additionnal padding, copy + of ethernet addresses, length of the standard RFC 1042 packet + and a command byte (which is nul for tx). + + tx frame (from Wlan NG): + RFC 1042: + llc 0xAA 0xAA 0x03 (802.2 LLC) + snap 0x00 0x00 0x00 (Ethernet encapsulated) + type 2 bytes, Ethernet type field + payload (minus eth header) + Zydas specific: + padding 1B if (skb->len+8+1)%64==0 + Eth MAC addr 12 bytes, Ethernet MAC addresses + length 2 bytes, RFC 1042 packet length + (llc+snap+type+payload) + zd 1 null byte, zd1201 packet type + */ +static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + unsigned char *txbuf = zd->txdata; + int txbuflen, pad = 0, err; + struct urb *urb = zd->tx_urb; + + if (!zd->mac_enabled || zd->monitor) { + zd->stats.tx_dropped++; + kfree_skb(skb); + return 0; + } + netif_stop_queue(dev); + + txbuflen = skb->len + 8 + 1; + if (txbuflen%64 == 0) { + pad = 1; + txbuflen++; + } + txbuf[0] = 0xAA; + txbuf[1] = 0xAA; + txbuf[2] = 0x03; + txbuf[3] = 0x00; /* rfc1042 */ + txbuf[4] = 0x00; + txbuf[5] = 0x00; + + memcpy(txbuf+6, skb->data+12, skb->len-12); + if (pad) + txbuf[skb->len-12+6]=0; + memcpy(txbuf+skb->len-12+6+pad, skb->data, 12); + *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6); + txbuf[txbuflen-1] = 0; + + usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out), + txbuf, txbuflen, zd1201_usbtx, zd); + + err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC); + if (err) { + zd->stats.tx_errors++; + netif_start_queue(dev); + return err; + } + zd->stats.tx_packets++; + zd->stats.tx_bytes += skb->len; + dev->trans_start = jiffies; + kfree_skb(skb); + + return 0; +} + +static void zd1201_tx_timeout(struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + if (!zd) + return; + dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n", + dev->name); + zd->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; + usb_unlink_urb(zd->tx_urb); + zd->stats.tx_errors++; + /* Restart the timeout to quiet the watchdog: */ + dev->trans_start = jiffies; +} + +static int zd1201_set_mac_address(struct net_device *dev, void *p) +{ + struct sockaddr *addr = p; + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err; + + if (!zd) + return -ENODEV; + + err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, + addr->sa_data, dev->addr_len, 1); + if (err) + return err; + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + + return zd1201_mac_reset(zd); +} + +static struct net_device_stats *zd1201_get_stats(struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + return &zd->stats; +} + +static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + return &zd->iwstats; +} + +static void zd1201_set_multicast(struct net_device *dev) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + struct dev_mc_list *mc = dev->mc_list; + unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI]; + int i; + + if (dev->mc_count > ZD1201_MAXMULTI) + return; + + for (i=0; i<dev->mc_count; i++) { + memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN); + mc = mc->next; + } + zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf, + dev->mc_count*ETH_ALEN, 0); + +} + +static int zd1201_config_commit(struct net_device *dev, + struct iw_request_info *info, struct iw_point *data, char *essid) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + return zd1201_mac_reset(zd); +} + +static int zd1201_get_name(struct net_device *dev, + struct iw_request_info *info, char *name, char *extra) +{ + strcpy(name, "IEEE 802.11b"); + + return 0; +} + +static int zd1201_set_freq(struct net_device *dev, + struct iw_request_info *info, struct iw_freq *freq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short channel = 0; + int err; + + if (freq->e == 0) + channel = freq->m; + else { + if (freq->m >= 2482) + channel = 14; + if (freq->m >= 2407) + channel = (freq->m-2407)/5; + } + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel); + if (err) + return err; + + zd1201_mac_reset(zd); + + return 0; +} + +static int zd1201_get_freq(struct net_device *dev, + struct iw_request_info *info, struct iw_freq *freq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short channel; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel); + if (err) + return err; + freq->e = 0; + freq->m = channel; + + return 0; +} + +static int zd1201_set_mode(struct net_device *dev, + struct iw_request_info *info, __u32 *mode, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short porttype, monitor = 0; + unsigned char buffer[IW_ESSID_MAX_SIZE+2]; + int err; + + if (zd->ap) { + if (*mode != IW_MODE_MASTER) + return -EINVAL; + return 0; + } + + err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); + if (err) + return err; + zd->dev->type = ARPHRD_ETHER; + switch(*mode) { + case IW_MODE_MONITOR: + monitor = 1; + zd->dev->type = ARPHRD_IEEE80211; + /* Make sure we are no longer associated with by + setting an 'impossible' essid. + (otherwise we mess up firmware) + */ + zd1201_join(zd, "\0-*#\0", 5); + /* Put port in pIBSS */ + case 8: /* No pseudo-IBSS in wireless extensions (yet) */ + porttype = ZD1201_PORTTYPE_PSEUDOIBSS; + break; + case IW_MODE_ADHOC: + porttype = ZD1201_PORTTYPE_IBSS; + break; + case IW_MODE_INFRA: + porttype = ZD1201_PORTTYPE_BSS; + break; + default: + return -EINVAL; + } + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); + if (err) + return err; + if (zd->monitor && !monitor) { + zd1201_disable(zd); + *(__le16 *)buffer = cpu_to_le16(zd->essidlen); + memcpy(buffer+2, zd->essid, zd->essidlen); + err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, + buffer, IW_ESSID_MAX_SIZE+2, 1); + if (err) + return err; + } + zd->monitor=monitor; + /* If monitor mode is set we don't actually turn it on here since it + * is done during mac reset anyway (see zd1201_mac_enable). + */ + + zd1201_mac_reset(zd); + + return 0; +} + +static int zd1201_get_mode(struct net_device *dev, + struct iw_request_info *info, __u32 *mode, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short porttype; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype); + if (err) + return err; + switch(porttype) { + case ZD1201_PORTTYPE_IBSS: + *mode = IW_MODE_ADHOC; + break; + case ZD1201_PORTTYPE_BSS: + *mode = IW_MODE_INFRA; + break; + case ZD1201_PORTTYPE_WDS: + *mode = IW_MODE_REPEAT; + break; + case ZD1201_PORTTYPE_PSEUDOIBSS: + *mode = 8;/* No Pseudo-IBSS... */ + break; + case ZD1201_PORTTYPE_AP: + *mode = IW_MODE_MASTER; + break; + default: + dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n", + porttype); + *mode = IW_MODE_AUTO; + } + if (zd->monitor) + *mode = IW_MODE_MONITOR; + + return 0; +} + +static int zd1201_get_range(struct net_device *dev, + struct iw_request_info *info, struct iw_point *wrq, char *extra) +{ + struct iw_range *range = (struct iw_range *)extra; + + wrq->length = sizeof(struct iw_range); + memset(range, 0, sizeof(struct iw_range)); + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = WIRELESS_EXT; + + range->max_qual.qual = 128; + range->max_qual.level = 128; + range->max_qual.noise = 128; + range->max_qual.updated = 7; + + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; + range->num_encoding_sizes = 2; + range->max_encoding_tokens = ZD1201_NUMKEYS; + + range->num_bitrates = 4; + range->bitrate[0] = 1000000; + range->bitrate[1] = 2000000; + range->bitrate[2] = 5500000; + range->bitrate[3] = 11000000; + + range->min_rts = 0; + range->min_frag = ZD1201_FRAGMIN; + range->max_rts = ZD1201_RTSMAX; + range->min_frag = ZD1201_FRAGMAX; + + return 0; +} + +/* Little bit of magic here: we only get the quality if we poll + * for it, and we never get an actual request to trigger such + * a poll. Therefore we 'asume' that the user will soon ask for + * the stats after asking the bssid. + */ +static int zd1201_get_wap(struct net_device *dev, + struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + unsigned char buffer[6]; + + if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) { + /* Unfortunatly the quality and noise reported is useless. + they seem to be accumulators that increase until you + read them, unless we poll on a fixed interval we can't + use them + */ + /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/ + zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]); + /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/ + zd->iwstats.qual.updated = 2; + } + + return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6); +} + +static int zd1201_set_scan(struct net_device *dev, + struct iw_request_info *info, struct iw_point *srq, char *extra) +{ + /* We do everything in get_scan */ + return 0; +} + +static int zd1201_get_scan(struct net_device *dev, + struct iw_request_info *info, struct iw_point *srq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err, i, j, enabled_save; + struct iw_event iwe; + char *cev = extra; + char *end_buf = extra + IW_SCAN_MAX_DATA; + + /* No scanning in AP mode */ + if (zd->ap) + return -EOPNOTSUPP; + + /* Scan doesn't seem to work if disabled */ + enabled_save = zd->mac_enabled; + zd1201_enable(zd); + + zd->rxdatas = 0; + err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE, + ZD1201_INQ_SCANRESULTS, 0, 0); + if (err) + return err; + + wait_event_interruptible(zd->rxdataq, zd->rxdatas); + if (!zd->rxlen) + return -EIO; + + if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS) + return -EIO; + + for(i=8; i<zd->rxlen; i+=62) { + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6); + cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN); + + iwe.cmd = SIOCGIWESSID; + iwe.u.data.length = zd->rxdata[i+16]; + iwe.u.data.flags = 1; + cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18); + + iwe.cmd = SIOCGIWMODE; + if (zd->rxdata[i+14]&0x01) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN); + + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = zd->rxdata[i+0]; + iwe.u.freq.e = 0; + cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN); + + iwe.cmd = SIOCGIWRATE; + iwe.u.bitrate.fixed = 0; + iwe.u.bitrate.disabled = 0; + for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) { + iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000; + cev=iwe_stream_add_event(cev, end_buf, &iwe, + IW_EV_PARAM_LEN); + } + + iwe.cmd = SIOCGIWENCODE; + iwe.u.data.length = 0; + if (zd->rxdata[i+14]&0x10) + iwe.u.data.flags = IW_ENCODE_ENABLED; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL); + + iwe.cmd = IWEVQUAL; + iwe.u.qual.qual = zd->rxdata[i+4]; + iwe.u.qual.noise= zd->rxdata[i+2]/10-100; + iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100; + iwe.u.qual.updated = 7; + cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN); + } + + if (!enabled_save) + zd1201_disable(zd); + + srq->length = cev - extra; + srq->flags = 0; + + return 0; +} + +static int zd1201_set_essid(struct net_device *dev, + struct iw_request_info *info, struct iw_point *data, char *essid) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + if (data->length > IW_ESSID_MAX_SIZE) + return -EINVAL; + if (data->length < 1) + data->length = 1; + zd->essidlen = data->length-1; + memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1); + memcpy(zd->essid, essid, data->length); + return zd1201_join(zd, zd->essid, zd->essidlen); +} + +static int zd1201_get_essid(struct net_device *dev, + struct iw_request_info *info, struct iw_point *data, char *essid) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + + memcpy(essid, zd->essid, zd->essidlen); + data->flags = 1; + data->length = zd->essidlen; + + return 0; +} + +static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info, + struct iw_point *data, char *nick) +{ + strcpy(nick, "zd1201"); + data->flags = 1; + data->length = strlen(nick); + return 0; +} + +static int zd1201_set_rate(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short rate; + int err; + + switch (rrq->value) { + case 1000000: + rate = ZD1201_RATEB1; + break; + case 2000000: + rate = ZD1201_RATEB2; + break; + case 5500000: + rate = ZD1201_RATEB5; + break; + case 11000000: + default: + rate = ZD1201_RATEB11; + break; + } + if (!rrq->fixed) { /* Also enable all lower bitrates */ + rate |= rate-1; + } + + err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate); + if (err) + return err; + + return zd1201_mac_reset(zd); +} + +static int zd1201_get_rate(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short rate; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate); + if (err) + return err; + + switch(rate) { + case 1: + rrq->value = 1000000; + break; + case 2: + rrq->value = 2000000; + break; + case 5: + rrq->value = 5500000; + break; + case 11: + rrq->value = 11000000; + break; + default: + rrq->value = 0; + } + rrq->fixed = 0; + rrq->disabled = 0; + + return 0; +} + +static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err; + short val = rts->value; + + if (rts->disabled || !rts->fixed) + val = ZD1201_RTSMAX; + if (val > ZD1201_RTSMAX) + return -EINVAL; + if (val < 0) + return -EINVAL; + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val); + if (err) + return err; + return zd1201_mac_reset(zd); +} + +static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short rtst; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst); + if (err) + return err; + rts->value = rtst; + rts->disabled = (rts->value == ZD1201_RTSMAX); + rts->fixed = 1; + + return 0; +} + +static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info, + struct iw_param *frag, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err; + short val = frag->value; + + if (frag->disabled || !frag->fixed) + val = ZD1201_FRAGMAX; + if (val > ZD1201_FRAGMAX) + return -EINVAL; + if (val < ZD1201_FRAGMIN) + return -EINVAL; + if (val & 1) + return -EINVAL; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val); + if (err) + return err; + return zd1201_mac_reset(zd); +} + +static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info, + struct iw_param *frag, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short fragt; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt); + if (err) + return err; + frag->value = fragt; + frag->disabled = (frag->value == ZD1201_FRAGMAX); + frag->fixed = 1; + + return 0; +} + +static int zd1201_set_retry(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + return 0; +} + +static int zd1201_get_retry(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + return 0; +} + +static int zd1201_set_encode(struct net_device *dev, + struct iw_request_info *info, struct iw_point *erq, char *key) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short i; + int err, rid; + + if (erq->length > ZD1201_MAXKEYLEN) + return -EINVAL; + + i = (erq->flags & IW_ENCODE_INDEX)-1; + if (i == -1) { + err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i); + if (err) + return err; + } else { + err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i); + if (err) + return err; + } + + if (i < 0 || i >= ZD1201_NUMKEYS) + return -EINVAL; + + rid = ZD1201_RID_CNFDEFAULTKEY0 + i; + err = zd1201_setconfig(zd, rid, key, erq->length, 1); + if (err) + return err; + zd->encode_keylen[i] = erq->length; + memcpy(zd->encode_keys[i], key, erq->length); + + i=0; + if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) { + i |= 0x01; + zd->encode_enabled = 1; + } else + zd->encode_enabled = 0; + if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) { + i |= 0x02; + zd->encode_restricted = 1; + } else + zd->encode_restricted = 0; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i); + if (err) + return err; + + if (zd->encode_enabled) + i = ZD1201_CNFAUTHENTICATION_SHAREDKEY; + else + i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i); + if (err) + return err; + + return zd1201_mac_reset(zd); +} + +static int zd1201_get_encode(struct net_device *dev, + struct iw_request_info *info, struct iw_point *erq, char *key) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short i; + int err; + + if (zd->encode_enabled) + erq->flags = IW_ENCODE_ENABLED; + else + erq->flags = IW_ENCODE_DISABLED; + if (zd->encode_restricted) + erq->flags |= IW_ENCODE_RESTRICTED; + else + erq->flags |= IW_ENCODE_OPEN; + + i = (erq->flags & IW_ENCODE_INDEX) -1; + if (i == -1) { + err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i); + if (err) + return err; + } + if (i<0 || i>= ZD1201_NUMKEYS) + return -EINVAL; + + erq->flags |= i+1; + + erq->length = zd->encode_keylen[i]; + memcpy(key, zd->encode_keys[i], erq->length); + + return 0; +} + +static int zd1201_set_power(struct net_device *dev, + struct iw_request_info *info, struct iw_param *vwrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short enabled, duration, level; + int err; + + enabled = vwrq->disabled ? 0 : 1; + if (enabled) { + if (vwrq->flags & IW_POWER_PERIOD) { + duration = vwrq->value; + err = zd1201_setconfig16(zd, + ZD1201_RID_CNFMAXSLEEPDURATION, duration); + if (err) + return err; + goto out; + } + if (vwrq->flags & IW_POWER_TIMEOUT) { + err = zd1201_getconfig16(zd, + ZD1201_RID_CNFMAXSLEEPDURATION, &duration); + if (err) + return err; + level = vwrq->value * 4 / duration; + if (level > 4) + level = 4; + if (level < 0) + level = 0; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS, + level); + if (err) + return err; + goto out; + } + return -EINVAL; + } +out: + err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled); + if (err) + return err; + + return 0; +} + +static int zd1201_get_power(struct net_device *dev, + struct iw_request_info *info, struct iw_param *vwrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short enabled, level, duration; + int err; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled); + if (err) + return err; + err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level); + if (err) + return err; + err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration); + if (err) + return err; + vwrq->disabled = enabled ? 0 : 1; + if (vwrq->flags & IW_POWER_TYPE) { + if (vwrq->flags & IW_POWER_PERIOD) { + vwrq->value = duration; + vwrq->flags = IW_POWER_PERIOD; + } else { + vwrq->value = duration * level / 4; + vwrq->flags = IW_POWER_TIMEOUT; + } + } + if (vwrq->flags & IW_POWER_MODE) { + if (enabled && level) + vwrq->flags = IW_POWER_UNICAST_R; + else + vwrq->flags = IW_POWER_ALL_R; + } + + return 0; +} + + +static const iw_handler zd1201_iw_handler[] = +{ + (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */ + (iw_handler) zd1201_get_name, /* SIOCGIWNAME */ + (iw_handler) NULL, /* SIOCSIWNWID */ + (iw_handler) NULL, /* SIOCGIWNWID */ + (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */ + (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */ + (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */ + (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */ + (iw_handler) NULL, /* SIOCSIWSENS */ + (iw_handler) NULL, /* SIOCGIWSENS */ + (iw_handler) NULL, /* SIOCSIWRANGE */ + (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */ + (iw_handler) NULL, /* SIOCSIWPRIV */ + (iw_handler) NULL, /* SIOCGIWPRIV */ + (iw_handler) NULL, /* SIOCSIWSTATS */ + (iw_handler) NULL, /* SIOCGIWSTATS */ + (iw_handler) NULL, /* SIOCSIWSPY */ + (iw_handler) NULL, /* SIOCGIWSPY */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */ + (iw_handler) zd1201_get_wap, /* SIOCGIWAP */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* SIOCGIWAPLIST */ + (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */ + (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */ + (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */ + (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */ + (iw_handler) NULL, /* SIOCSIWNICKN */ + (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */ + (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */ + (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */ + (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */ + (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */ + (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */ + (iw_handler) NULL, /* SIOCSIWTXPOW */ + (iw_handler) NULL, /* SIOCGIWTXPOW */ + (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */ + (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */ + (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */ + (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */ + (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */ + (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */ +}; + +static int zd1201_set_hostauth(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err; + + if (!zd->ap) + return -EOPNOTSUPP; + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value); + if (err) + return err; + return 0; +} + +static int zd1201_get_hostauth(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short hostauth; + int err; + + if (!zd->ap) + return -EOPNOTSUPP; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth); + if (err) + return err; + rrq->value = hostauth; + rrq->fixed = 1; + + return 0; +} + +static int zd1201_auth_sta(struct net_device *dev, + struct iw_request_info *info, struct sockaddr *sta, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + unsigned char buffer[10]; + + if (!zd->ap) + return -EOPNOTSUPP; + + memcpy(buffer, sta->sa_data, ETH_ALEN); + *(short*)(buffer+6) = 0; /* 0==success, 1==failure */ + *(short*)(buffer+8) = 0; + + return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1); +} + +static int zd1201_set_maxassoc(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + int err; + + if (!zd->ap) + return -EOPNOTSUPP; + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value); + if (err) + return err; + return 0; +} + +static int zd1201_get_maxassoc(struct net_device *dev, + struct iw_request_info *info, struct iw_param *rrq, char *extra) +{ + struct zd1201 *zd = (struct zd1201 *)dev->priv; + short maxassoc; + int err; + + if (!zd->ap) + return -EOPNOTSUPP; + + err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc); + if (err) + return err; + rrq->value = maxassoc; + rrq->fixed = 1; + + return 0; +} + +static const iw_handler zd1201_private_handler[] = { + (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */ + (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */ + (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */ + (iw_handler) NULL, /* nothing to get */ + (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */ + (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */ +}; + +static const struct iw_priv_args zd1201_private_args[] = { + { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + IW_PRIV_TYPE_NONE, "sethostauth" }, + { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" }, + { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, + IW_PRIV_TYPE_NONE, "authstation" }, + { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + IW_PRIV_TYPE_NONE, "setmaxassoc" }, + { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" }, +}; + +static const struct iw_handler_def zd1201_iw_handlers = { + .num_standard = sizeof(zd1201_iw_handler)/sizeof(iw_handler), + .num_private = sizeof(zd1201_private_handler)/sizeof(iw_handler), + .num_private_args = sizeof(zd1201_private_args)/sizeof(struct iw_priv_args), + .standard = (iw_handler *)zd1201_iw_handler, + .private = (iw_handler *)zd1201_private_handler, + .private_args = (struct iw_priv_args *) zd1201_private_args, +}; + +int zd1201_probe(struct usb_interface *interface, const struct usb_device_id *id) +{ + struct zd1201 *zd; + struct usb_device *usb; + int i, err; + short porttype; + char buf[IW_ESSID_MAX_SIZE+2]; + + usb = interface_to_usbdev(interface); + + zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL); + if (!zd) { + return -ENOMEM; + } + memset(zd, 0, sizeof(struct zd1201)); + zd->ap = ap; + zd->usb = usb; + zd->removed = 0; + init_waitqueue_head(&zd->rxdataq); + INIT_HLIST_HEAD(&zd->fraglist); + + err = zd1201_fw_upload(usb, zd->ap); + if (err) { + dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err); + goto err_zd; + } + + zd->endp_in = 1; + zd->endp_out = 1; + zd->endp_out2 = 2; + zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!zd->rx_urb || !zd->tx_urb) + goto err_zd; + + for(i = 0; i<100; i++) + udelay(1000); + + err = zd1201_drvr_start(zd); + if (err) + goto err_zd; + + err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312); + if (err) + goto err_start; + + err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, + ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11); + if (err) + goto err_start; + + zd->dev = alloc_etherdev(0); + if (!zd->dev) + goto err_start; + + zd->dev->priv = zd; + zd->dev->open = zd1201_net_open; + zd->dev->stop = zd1201_net_stop; + zd->dev->get_stats = zd1201_get_stats; + zd->dev->get_wireless_stats = zd1201_get_wireless_stats; + zd->dev->wireless_handlers = + (struct iw_handler_def *)&zd1201_iw_handlers; + zd->dev->hard_start_xmit = zd1201_hard_start_xmit; + zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT; + zd->dev->tx_timeout = zd1201_tx_timeout; + zd->dev->set_multicast_list = zd1201_set_multicast; + zd->dev->set_mac_address = zd1201_set_mac_address; + strcpy(zd->dev->name, "wlan%d"); + + err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR, + zd->dev->dev_addr, zd->dev->addr_len); + if (err) + goto err_net; + + /* Set wildcard essid to match zd->essid */ + *(__le16 *)buf = cpu_to_le16(0); + err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, + IW_ESSID_MAX_SIZE+2, 1); + if (err) + goto err_net; + + if (zd->ap) + porttype = ZD1201_PORTTYPE_AP; + else + porttype = ZD1201_PORTTYPE_BSS; + err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); + if (err) + goto err_net; + + err = register_netdev(zd->dev); + if (err) + goto err_net; + dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n", + zd->dev->name); + + usb_set_intfdata(interface, zd); + return 0; + +err_net: + free_netdev(zd->dev); +err_start: + /* Leave the device in reset state */ + zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); +err_zd: + if (zd->tx_urb) + usb_free_urb(zd->tx_urb); + if (zd->rx_urb) + usb_free_urb(zd->rx_urb); + kfree(zd); + return err; +} + +void zd1201_disconnect(struct usb_interface *interface) +{ + struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface); + struct hlist_node *node, *node2; + struct zd1201_frag *frag; + + if (!zd) + return; + usb_set_intfdata(interface, NULL); + if (zd->dev) { + unregister_netdev(zd->dev); + free_netdev(zd->dev); + } + + hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) { + hlist_del_init(&frag->fnode); + kfree_skb(frag->skb); + kfree(frag); + } + + if (zd->tx_urb) { + usb_kill_urb(zd->tx_urb); + usb_free_urb(zd->tx_urb); + } + if (zd->rx_urb) { + usb_kill_urb(zd->rx_urb); + usb_free_urb(zd->rx_urb); + } + kfree(zd); +} + +struct usb_driver zd1201_usb = { + .owner = THIS_MODULE, + .name = "zd1201", + .probe = zd1201_probe, + .disconnect = zd1201_disconnect, + .id_table = zd1201_table, +}; + +static int __init zd1201_init(void) +{ + return usb_register(&zd1201_usb); +} + +static void __exit zd1201_cleanup(void) +{ + usb_deregister(&zd1201_usb); +} + +module_init(zd1201_init); +module_exit(zd1201_cleanup); diff --git a/drivers/usb/net/zd1201.h b/drivers/usb/net/zd1201.h new file mode 100644 index 00000000000..1627c71e805 --- /dev/null +++ b/drivers/usb/net/zd1201.h @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * Parts of this driver have been derived from a wlan-ng version + * modified by ZyDAS. + * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. + */ + +#ifndef _INCLUDE_ZD1201_H_ +#define _INCLUDE_ZD1201_H_ + +#define ZD1201_NUMKEYS 4 +#define ZD1201_MAXKEYLEN 13 +#define ZD1201_MAXMULTI 16 +#define ZD1201_FRAGMAX 2500 +#define ZD1201_FRAGMIN 256 +#define ZD1201_RTSMAX 2500 + +#define ZD1201_RXSIZE 3000 + +struct zd1201 { + struct usb_device *usb; + int removed; + struct net_device *dev; + struct net_device_stats stats; + struct iw_statistics iwstats; + + int endp_in; + int endp_out; + int endp_out2; + struct urb *rx_urb; + struct urb *tx_urb; + + unsigned char rxdata[ZD1201_RXSIZE]; + int rxlen; + wait_queue_head_t rxdataq; + int rxdatas; + struct hlist_head fraglist; + unsigned char txdata[ZD1201_RXSIZE]; + + int ap; + char essid[IW_ESSID_MAX_SIZE+1]; + int essidlen; + int mac_enabled; + int monitor; + int encode_enabled; + int encode_restricted; + unsigned char encode_keys[ZD1201_NUMKEYS][ZD1201_MAXKEYLEN]; + int encode_keylen[ZD1201_NUMKEYS]; +}; + +struct zd1201_frag { + struct hlist_node fnode; + int seq; + struct sk_buff *skb; +}; + +#define ZD1201SIWHOSTAUTH SIOCIWFIRSTPRIV +#define ZD1201GIWHOSTAUTH ZD1201SIWHOSTAUTH+1 +#define ZD1201SIWAUTHSTA SIOCIWFIRSTPRIV+2 +#define ZD1201SIWMAXASSOC SIOCIWFIRSTPRIV+4 +#define ZD1201GIWMAXASSOC ZD1201SIWMAXASSOC+1 + +#define ZD1201_FW_TIMEOUT (1000) + +#define ZD1201_TX_TIMEOUT (2000) + +#define ZD1201_USB_CMDREQ 0 +#define ZD1201_USB_RESREQ 1 + +#define ZD1201_CMDCODE_INIT 0x00 +#define ZD1201_CMDCODE_ENABLE 0x01 +#define ZD1201_CMDCODE_DISABLE 0x02 +#define ZD1201_CMDCODE_ALLOC 0x0a +#define ZD1201_CMDCODE_INQUIRE 0x11 +#define ZD1201_CMDCODE_SETRXRID 0x17 +#define ZD1201_CMDCODE_ACCESS 0x21 + +#define ZD1201_PACKET_EVENTSTAT 0x0 +#define ZD1201_PACKET_RXDATA 0x1 +#define ZD1201_PACKET_INQUIRE 0x2 +#define ZD1201_PACKET_RESOURCE 0x3 + +#define ZD1201_ACCESSBIT 0x0100 + +#define ZD1201_RID_CNFPORTTYPE 0xfc00 +#define ZD1201_RID_CNFOWNMACADDR 0xfc01 +#define ZD1201_RID_CNFDESIREDSSID 0xfc02 +#define ZD1201_RID_CNFOWNCHANNEL 0xfc03 +#define ZD1201_RID_CNFOWNSSID 0xfc04 +#define ZD1201_RID_CNFMAXDATALEN 0xfc07 +#define ZD1201_RID_CNFPMENABLED 0xfc09 +#define ZD1201_RID_CNFPMEPS 0xfc0a +#define ZD1201_RID_CNFMAXSLEEPDURATION 0xfc0c +#define ZD1201_RID_CNFDEFAULTKEYID 0xfc23 +#define ZD1201_RID_CNFDEFAULTKEY0 0xfc24 +#define ZD1201_RID_CNFDEFAULTKEY1 0xfc25 +#define ZD1201_RID_CNFDEFAULTKEY2 0xfc26 +#define ZD1201_RID_CNFDEFAULTKEY3 0xfc27 +#define ZD1201_RID_CNFWEBFLAGS 0xfc28 +#define ZD1201_RID_CNFAUTHENTICATION 0xfc2a +#define ZD1201_RID_CNFMAXASSOCSTATIONS 0xfc2b +#define ZD1201_RID_CNFHOSTAUTH 0xfc2e +#define ZD1201_RID_CNFGROUPADDRESS 0xfc80 +#define ZD1201_RID_CNFFRAGTHRESHOLD 0xfc82 +#define ZD1201_RID_CNFRTSTHRESHOLD 0xfc83 +#define ZD1201_RID_TXRATECNTL 0xfc84 +#define ZD1201_RID_PROMISCUOUSMODE 0xfc85 +#define ZD1201_RID_CNFBASICRATES 0xfcb3 +#define ZD1201_RID_AUTHENTICATESTA 0xfce3 +#define ZD1201_RID_CURRENTBSSID 0xfd42 +#define ZD1201_RID_COMMSQUALITY 0xfd43 +#define ZD1201_RID_CURRENTTXRATE 0xfd44 +#define ZD1201_RID_CNFMAXTXBUFFERNUMBER 0xfda0 +#define ZD1201_RID_CURRENTCHANNEL 0xfdc1 + +#define ZD1201_INQ_SCANRESULTS 0xf101 + +#define ZD1201_INF_LINKSTATUS 0xf200 +#define ZD1201_INF_ASSOCSTATUS 0xf201 +#define ZD1201_INF_AUTHREQ 0xf202 + +#define ZD1201_ASSOCSTATUS_STAASSOC 0x1 +#define ZD1201_ASSOCSTATUS_REASSOC 0x2 +#define ZD1201_ASSOCSTATUS_DISASSOC 0x3 +#define ZD1201_ASSOCSTATUS_ASSOCFAIL 0x4 +#define ZD1201_ASSOCSTATUS_AUTHFAIL 0x5 + +#define ZD1201_PORTTYPE_IBSS 0 +#define ZD1201_PORTTYPE_BSS 1 +#define ZD1201_PORTTYPE_WDS 2 +#define ZD1201_PORTTYPE_PSEUDOIBSS 3 +#define ZD1201_PORTTYPE_AP 6 + +#define ZD1201_RATEB1 1 +#define ZD1201_RATEB2 2 +#define ZD1201_RATEB5 4 /* 5.5 really, but 5 is shorter :) */ +#define ZD1201_RATEB11 8 + +#define ZD1201_CNFAUTHENTICATION_OPENSYSTEM 0x0001 +#define ZD1201_CNFAUTHENTICATION_SHAREDKEY 0x0002 + +#endif /* _INCLUDE_ZD1201_H_ */ |