diff options
| -rw-r--r-- | drivers/usb/gadget/ether.c | 141 |
1 files changed, 54 insertions, 87 deletions
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index f70055473a0..ff244f42723 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -19,41 +19,19 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +/* #define VERBOSE_DEBUG */ -// #define DEBUG 1 -// #define VERBOSE - -#include <linux/module.h> #include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/timer.h> -#include <linux/list.h> -#include <linux/interrupt.h> #include <linux/utsname.h> #include <linux/device.h> -#include <linux/moduleparam.h> #include <linux/ctype.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/unaligned.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> #include <linux/usb/ch9.h> #include <linux/usb/cdc.h> #include <linux/usb_gadget.h> -#include <linux/random.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> - #include "gadget_chips.h" /*-------------------------------------------------------------------------*/ @@ -356,15 +334,15 @@ module_param (qmult, uint, S_IRUGO|S_IWUSR); #define qlen(gadget) \ (DEFAULT_QLEN*((gadget->speed == USB_SPEED_HIGH) ? qmult : 1)) -/* also defer IRQs on highspeed TX */ -#define TX_DELAY qmult - static inline int BITRATE(struct usb_gadget *g) { return (g->speed == USB_SPEED_HIGH) ? HS_BPS : FS_BPS; } #else /* full speed (low speed doesn't do bulk) */ + +#define qmult 1 + #define DEVSPEED USB_SPEED_FULL #define qlen(gadget) DEFAULT_QLEN @@ -390,7 +368,7 @@ static inline int BITRATE(struct usb_gadget *g) do { } while (0) #endif /* DEBUG */ -#ifdef VERBOSE +#ifdef VERBOSE_DEBUG #define VDEBUG DEBUG #else #define VDEBUG(dev,fmt,args...) \ @@ -830,8 +808,6 @@ static const struct usb_descriptor_header *fs_rndis_function [] = { }; #endif -#ifdef CONFIG_USB_GADGET_DUALSPEED - /* * usb 2.0 devices need to expose both high speed and full speed * descriptors, unless they only run at full speed. @@ -934,18 +910,15 @@ static const struct usb_descriptor_header *hs_rndis_function [] = { /* maxpacket and other transfer characteristics vary by speed. */ -#define ep_desc(g,hs,fs) (((g)->speed==USB_SPEED_HIGH)?(hs):(fs)) - -#else - -/* if there's no high speed support, maxpacket doesn't change. */ -#define ep_desc(g,hs,fs) (((void)(g)), (fs)) - -static inline void __init hs_subset_descriptors(void) +static inline struct usb_endpoint_descriptor * +ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs, + struct usb_endpoint_descriptor *fs) { + if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) + return hs; + return fs; } -#endif /* !CONFIG_USB_GADGET_DUALSPEED */ /*-------------------------------------------------------------------------*/ @@ -989,22 +962,19 @@ static struct usb_gadget_strings stringtab = { * complications: class descriptors, and an altsetting. */ static int -config_buf (enum usb_device_speed speed, - u8 *buf, u8 type, - unsigned index, int is_otg) +config_buf(struct usb_gadget *g, u8 *buf, u8 type, unsigned index, int is_otg) { int len; const struct usb_config_descriptor *config; const struct usb_descriptor_header **function; -#ifdef CONFIG_USB_GADGET_DUALSPEED - int hs = (speed == USB_SPEED_HIGH); + int hs = 0; - if (type == USB_DT_OTHER_SPEED_CONFIG) - hs = !hs; + if (gadget_is_dualspeed(g)) { + hs = (g->speed == USB_SPEED_HIGH); + if (type == USB_DT_OTHER_SPEED_CONFIG) + hs = !hs; + } #define which_fn(t) (hs ? hs_ ## t ## _function : fs_ ## t ## _function) -#else -#define which_fn(t) (fs_ ## t ## _function) -#endif if (index >= device_desc.bNumConfigurations) return -EINVAL; @@ -1217,7 +1187,7 @@ eth_set_config (struct eth_dev *dev, unsigned number, gfp_t gfp_flags) if (number) eth_reset_config (dev); usb_gadget_vbus_draw(dev->gadget, - dev->gadget->is_otg ? 8 : 100); + gadget_is_otg(dev->gadget) ? 8 : 100); } else { char *speed; unsigned power; @@ -1399,24 +1369,22 @@ eth_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) value = min (wLength, (u16) sizeof device_desc); memcpy (req->buf, &device_desc, value); break; -#ifdef CONFIG_USB_GADGET_DUALSPEED case USB_DT_DEVICE_QUALIFIER: - if (!gadget->is_dualspeed) + if (!gadget_is_dualspeed(gadget)) break; value = min (wLength, (u16) sizeof dev_qualifier); memcpy (req->buf, &dev_qualifier, value); break; case USB_DT_OTHER_SPEED_CONFIG: - if (!gadget->is_dualspeed) + if (!gadget_is_dualspeed(gadget)) break; // FALLTHROUGH -#endif /* CONFIG_USB_GADGET_DUALSPEED */ case USB_DT_CONFIG: - value = config_buf (gadget->speed, req->buf, + value = config_buf(gadget, req->buf, wValue >> 8, wValue & 0xff, - gadget->is_otg); + gadget_is_otg(gadget)); if (value >= 0) value = min (wLength, (u16) value); break; @@ -1585,12 +1553,12 @@ done_set_intf: && rndis_control_intf.bInterfaceNumber == wIndex) { u8 *buf; + u32 n; /* return the result */ - buf = rndis_get_next_response (dev->rndis_config, - &value); + buf = rndis_get_next_response(dev->rndis_config, &n); if (buf) { - memcpy (req->buf, buf, value); + memcpy(req->buf, buf, n); req->complete = rndis_response_complete; rndis_free_response(dev->rndis_config, buf); } @@ -2026,12 +1994,11 @@ static int eth_start_xmit (struct sk_buff *skb, struct net_device *net) req->length = length; -#ifdef CONFIG_USB_GADGET_DUALSPEED /* throttle highspeed IRQ rate back slightly */ - req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH) - ? ((atomic_read (&dev->tx_qlen) % TX_DELAY) != 0) - : 0; -#endif + if (gadget_is_dualspeed(dev->gadget)) + req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH) + ? ((atomic_read(&dev->tx_qlen) % qmult) != 0) + : 0; retval = usb_ep_queue (dev->in_ep, req, GFP_ATOMIC); switch (retval) { @@ -2188,8 +2155,7 @@ static int eth_stop (struct net_device *net) } if (rndis_active(dev)) { - rndis_set_param_medium (dev->rndis_config, - NDIS_MEDIUM_802_3, 0); + rndis_set_param_medium(dev->rndis_config, NDIS_MEDIUM_802_3, 0); (void) rndis_signal_disconnect (dev->rndis_config); } @@ -2443,26 +2409,28 @@ autoconf_fail: if (rndis) device_desc.bNumConfigurations = 2; -#ifdef CONFIG_USB_GADGET_DUALSPEED - if (rndis) - dev_qualifier.bNumConfigurations = 2; - else if (!cdc) - dev_qualifier.bDeviceClass = USB_CLASS_VENDOR_SPEC; + if (gadget_is_dualspeed(gadget)) { + if (rndis) + dev_qualifier.bNumConfigurations = 2; + else if (!cdc) + dev_qualifier.bDeviceClass = USB_CLASS_VENDOR_SPEC; - /* assumes ep0 uses the same value for both speeds ... */ - dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0; + /* assumes ep0 uses the same value for both speeds ... */ + dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0; - /* and that all endpoints are dual-speed */ - hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress; - hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress; + /* and that all endpoints are dual-speed */ + hs_source_desc.bEndpointAddress = + fs_source_desc.bEndpointAddress; + hs_sink_desc.bEndpointAddress = + fs_sink_desc.bEndpointAddress; #if defined(DEV_CONFIG_CDC) || defined(CONFIG_USB_ETH_RNDIS) - if (status_ep) - hs_status_desc.bEndpointAddress = - fs_status_desc.bEndpointAddress; + if (status_ep) + hs_status_desc.bEndpointAddress = + fs_status_desc.bEndpointAddress; #endif -#endif /* DUALSPEED */ + } - if (gadget->is_otg) { + if (gadget_is_otg(gadget)) { otg_descriptor.bmAttributes |= USB_OTG_HNP, eth_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; eth_config.bMaxPower = 4; @@ -2598,12 +2566,11 @@ fail0: if (rndis_set_param_dev (dev->rndis_config, dev->net, &dev->stats, &dev->cdc_filter)) goto fail0; - if (rndis_set_param_vendor (dev->rndis_config, vendorID, - manufacturer)) + if (rndis_set_param_vendor(dev->rndis_config, vendorID, + manufacturer)) goto fail0; - if (rndis_set_param_medium (dev->rndis_config, - NDIS_MEDIUM_802_3, - 0)) + if (rndis_set_param_medium(dev->rndis_config, + NDIS_MEDIUM_802_3, 0)) goto fail0; INFO (dev, "RNDIS ready\n"); } |