/* * Infinity Unlimited USB Phoenix driver * * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com) * * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás) * * 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. * * And tested with help of WB Electronics * */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/tty.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> #include <linux/serial.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/spinlock.h> #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include "iuu_phoenix.h" #include <linux/random.h> #ifdef CONFIG_USB_SERIAL_DEBUG static int debug = 1; #else static int debug; #endif /* * Version Information */ #define DRIVER_VERSION "v0.5" #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" static struct usb_device_id id_table[] = { {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)}, {} /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table); static struct usb_driver iuu_driver = { .name = "iuu_phoenix", .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, .no_dynamic_id = 1, }; /* turbo parameter */ static int boost = 100; static int clockmode = 1; static int cdmode = 1; static int iuu_cardin; static int iuu_cardout; static int xmas; static void read_rxcmd_callback(struct urb *urb); struct iuu_private { spinlock_t lock; /* store irq state */ wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; u8 termios_initialized; int tiostatus; /* store IUART SIGNAL for tiocmget call */ u8 reset; /* if 1 reset is needed */ int poll; /* number of poll */ u8 *writebuf; /* buffer for writing to device */ int writelen; /* num of byte to write to device */ u8 *buf; /* used for initialize speed */ u8 *dbgbuf; /* debug buffer */ u8 len; }; static void iuu_free_buf(struct iuu_private *priv) { kfree(priv->buf); kfree(priv->dbgbuf); kfree(priv->writebuf); } static int iuu_alloc_buf(struct iuu_private *priv) { priv->buf = kzalloc(256, GFP_KERNEL); priv->dbgbuf = kzalloc(256, GFP_KERNEL); priv->writebuf = kzalloc(256, GFP_KERNEL); if (!priv->buf || !priv->dbgbuf || !priv->writebuf) { iuu_free_buf(priv); dbg("%s problem allocation buffer", __func__); return -ENOMEM; } dbg("%s - Privates buffers allocation success", __func__); return 0; } static int iuu_startup(struct usb_serial *serial) { struct iuu_private *priv; priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL); dbg("%s- priv allocation success", __func__); if (!priv) return -ENOMEM; if (iuu_alloc_buf(priv)) { kfree(priv); return -ENOMEM; } spin_lock_init(&priv->lock); init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(serial->port[0], priv); return 0; } /* Shutdown function */ static void iuu_shutdown(struct usb_serial *serial) { struct usb_serial_port *port = serial->port[0]; struct iuu_private *priv = usb_get_serial_port_data(port); if (!port) return; dbg("%s", __func__); if (priv) { iuu_free_buf(priv); dbg("%s - I will free all", __func__); usb_set_serial_port_data(port, NULL); dbg("%s - priv is not anymore in port structure", __func__); kfree(priv); dbg("%s priv is now kfree", __func__); } } static int iuu_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; /* FIXME: locking on tiomstatus */ dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__, port->number, set, clear); spin_lock_irqsave(&priv->lock, flags); if (set & TIOCM_RTS) priv->tiostatus = TIOCM_RTS; if (!(set & TIOCM_RTS) && priv->tiostatus == TIOCM_RTS) { dbg("%s TIOCMSET RESET called !!!", __func__); priv->reset = 1; } spin_unlock_irqrestore(&priv->lock, flags); return 0; } /* This is used to provide a carrier detect mechanism * When a card is present, the response is 0x00 * When no card , the reader respond with TIOCM_CD * This is known as CD autodetect mechanism */ static int iuu_tiocmget(struct tty_struct *tty, struct file *file) { struct usb_serial_port *port = tty->driver_data; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; int rc; spin_lock_irqsave(&priv->lock, flags); rc = priv->tiostatus; spin_unlock_irqrestore(&priv->lock, flags); return rc; } static void iuu_rxcmd(struct urb *urb) { struct usb_serial_port *port = urb->context; int result; dbg("%s - enter", __func__); if (urb->status) { dbg("%s - urb->status = %d", __func__, urb->status); /* error stop all */ return; } memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 1, read_rxcmd_callback, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); } static int iuu_reset(struct usb_serial_port *port, u8 wt) { struct iuu_private *priv = usb_get_serial_port_data(port); int result; char *buf_ptr = port->write_urb->transfer_buffer; dbg("%s - enter", __func__); /* Prepare the reset sequence */ *buf_ptr++ = IUU_RST_SET; *buf_ptr++ = IUU_DELAY_MS; *buf_ptr++ = wt; *buf_ptr = IUU_RST_CLEAR; /* send the sequence */ usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 4, iuu_rxcmd, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); priv->reset = 0; return result; } /* Status Function * Return value is * 0x00 = no card * 0x01 = smartcard * 0x02 = sim card */ static void iuu_update_status_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct iuu_private *priv = usb_get_serial_port_data(port); u8 *st; dbg("%s - enter", __func__); if (urb->status) { dbg("%s - urb->status = %d", __func__, urb->status); /* error stop all */ return; } st = urb->transfer_buffer; dbg("%s - enter", __func__); if (urb->actual_length == 1) { switch (st[0]) { case 0x1: priv->tiostatus = iuu_cardout; break; case 0x0: priv->tiostatus = iuu_cardin; break; default: priv->tiostatus = iuu_cardin; } } iuu_rxcmd(urb); } static void iuu_status_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; int result; dbg("%s - enter", __func__); dbg("%s - urb->status = %d", __func__, urb->status); usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, 256, iuu_update_status_callback, port); result = usb_submit_urb(port->read_urb, GFP_ATOMIC); } static int iuu_status(struct usb_serial_port *port) { int result; dbg("%s - enter", __func__); memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1); usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 1, iuu_status_callback, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); return result; } static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count) { int status; struct usb_serial *serial = port->serial; int actual = 0; dbg("%s - enter", __func__); /* send the data out the bulk port */ status = usb_bulk_msg(serial->dev, usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress), buf, count, &actual, HZ * 1); if (status != IUU_OPERATION_OK) dbg("%s - error = %2x", __func__, status); else dbg("%s - write OK !", __func__); return status; } static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count) { int status; struct usb_serial *serial = port->serial; int actual = 0; dbg("%s - enter", __func__); /* send the data out the bulk port */ status = usb_bulk_msg(serial->dev, usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), buf, count, &actual, HZ * 1); if (status != IUU_OPERATION_OK) dbg("%s - error = %2x", __func__, status); else dbg("%s - read OK !", __func__); return status; } static int iuu_led(struct usb_serial_port *port, unsigned int R, unsigned int G, unsigned int B, u8 f) { int status; u8 *buf; buf = kmalloc(8, GFP_KERNEL); if (!buf) return -ENOMEM; dbg("%s - enter", __func__); buf[0] = IUU_SET_LED; buf[1] = R & 0xFF; buf[2] = (R >> 8) & 0xFF; buf[3] = G & 0xFF; buf[4] = (G >> 8) & 0xFF; buf[5] = B & 0xFF; buf[6] = (B >> 8) & 0xFF; buf[7] = f; status = bulk_immediate(port, buf, 8); kfree(buf); if (status != IUU_OPERATION_OK) dbg("%s - led error status = %2x", __func__, status); else dbg("%s - led OK !", __func__); return IUU_OPERATION_OK; } static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1, u8 b2, u8 freq) { *buf++ = IUU_SET_LED; *buf++ = r1; *buf++ = r2; *buf++ = g1; *buf++ = g2; *buf++ = b1; *buf++ = b2; *buf = freq; } static void iuu_led_activity_on(struct urb *urb) { struct usb_serial_port *port = urb->context; int result; char *buf_ptr = port->write_urb->transfer_buffer; *buf_ptr++ = IUU_SET_LED; if (xmas == 1) { get_random_bytes(buf_ptr, 6); *(buf_ptr+7) = 1; } else { iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255); } usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 8 , iuu_rxcmd, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); } static void iuu_led_activity_off(struct urb *urb) { struct usb_serial_port *port = urb->context; int result; char *buf_ptr = port->write_urb->transfer_buffer; if (xmas == 1) { iuu_rxcmd(urb); return; } else { *buf_ptr++ = IUU_SET_LED; iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255); } usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 8 , iuu_rxcmd, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); } static int iuu_clk(struct usb_serial_port *port, int dwFrq) { int status; struct iuu_private *priv = usb_get_serial_port_data(port); int Count = 0; u8 FrqGenAdr = 0x69; u8 DIV = 0; /* 8bit */ u8 XDRV = 0; /* 8bit */ u8 PUMP = 0; /* 3bit */ u8 PBmsb = 0; /* 2bit */ u8 PBlsb = 0; /* 8bit */ u8 PO = 0; /* 1bit */ u8 Q = 0; /* 7bit */ /* 24bit = 3bytes */ unsigned int P = 0; unsigned int P2 = 0; int frq = (int)dwFrq; dbg("%s - enter", __func__); if (frq == 0) { priv->buf[Count++] = IUU_UART_WRITE_I2C; priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x09; priv->buf[Count++] = 0x00; status = bulk_immediate(port, (u8 *) priv->buf, Count); if (status != 0) { dbg("%s - write error ", __func__); return status; } } else if (frq == 3579000) { DIV = 100; P = 1193; Q = 40; XDRV = 0; } else if (frq == 3680000) { DIV = 105; P = 161; Q = 5; XDRV = 0; } else if (frq == 6000000) { DIV = 66; P = 66; Q = 2; XDRV = 0x28; } else { unsigned int result = 0; unsigned int tmp = 0; unsigned int check; unsigned int check2; char found = 0x00; unsigned int lQ = 2; unsigned int lP = 2055; unsigned int lDiv = 4; for (lQ = 2; lQ <= 47 && !found; lQ++) for (lP = 2055; lP >= 8 && !found; lP--) for (lDiv = 4; lDiv <= 127 && !found; lDiv++) { tmp = (12000000 / lDiv) * (lP / lQ); if (abs((int)(tmp - frq)) < abs((int)(frq - result))) { check2 = (12000000 / lQ); if (check2 < 250000) continue; check = (12000000 / lQ) * lP; if (check > 400000000) continue; if (check < 100000000) continue; if (lDiv < 4 || lDiv > 127) continue; result = tmp; P = lP; DIV = lDiv; Q = lQ; if (result == frq) found = 0x01; } } } P2 = ((P - PO) / 2) - 4; DIV = DIV; PUMP = 0x04; PBmsb = (P2 >> 8 & 0x03); PBlsb = P2 & 0xFF; PO = (P >> 10) & 0x01; Q = Q - 2; priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x09; priv->buf[Count++] = 0x20; /* Adr = 0x09 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x0C; priv->buf[Count++] = DIV; /* Adr = 0x0C */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x12; priv->buf[Count++] = XDRV; /* Adr = 0x12 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x13; priv->buf[Count++] = 0x6B; /* Adr = 0x13 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x40; priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) | (PBmsb & 0x03); /* Adr = 0x40 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x41; priv->buf[Count++] = PBlsb; /* Adr = 0x41 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x42; priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x44; priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x45; priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x46; priv->buf[Count++] = 0x7F; /* Adr = 0x46 */ priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ priv->buf[Count++] = FrqGenAdr << 1; priv->buf[Count++] = 0x47; priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */ status = bulk_immediate(port, (u8 *) priv->buf, Count); if (status != IUU_OPERATION_OK) dbg("%s - write error ", __func__); return status; } static int iuu_uart_flush(struct usb_serial_port *port) { int i; int status; u8 rxcmd = IUU_UART_RX; struct iuu_private *priv = usb_get_serial_port_data(port); dbg("%s - enter", __func__); if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0) return -EIO; for (i = 0; i < 2; i++) { status = bulk_immediate(port, &rxcmd, 1); if (status != IUU_OPERATION_OK) { dbg("%s - uart_flush_write error", __func__); return status; } status = read_immediate(port, &priv->len, 1); if (status != IUU_OPERATION_OK) { dbg("%s - uart_flush_read error", __func__); return status; } if (priv->len > 0) { dbg("%s - uart_flush datalen is : %i ", __func__, priv->len); status = read_immediate(port, priv->buf, priv->len); if (status != IUU_OPERATION_OK) { dbg("%s - uart_flush_read error", __func__); return status; } } } dbg("%s - uart_flush_read OK!", __func__); iuu_led(port, 0, 0xF000, 0, 0xFF); return status; } static void read_buf_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; struct tty_struct *tty; dbg("%s - urb->status = %d", __func__, urb->status); if (urb->status) { dbg("%s - urb->status = %d", __func__, urb->status); if (urb->status == -EPROTO) { /* reschedule needed */ } return; } dbg("%s - %i chars to write", __func__, urb->actual_length); tty = port->port.tty; if (data == NULL) dbg("%s - data is NULL !!!", __func__); if (tty && urb->actual_length && data) { tty_insert_flip_string(tty, data, urb->actual_length); tty_flip_buffer_push(tty); } iuu_led_activity_on(urb); } static int iuu_bulk_write(struct usb_serial_port *port) { struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result; int i; char *buf_ptr = port->write_urb->transfer_buffer; dbg("%s - enter", __func__); *buf_ptr++ = IUU_UART_ESC; *buf_ptr++ = IUU_UART_TX; *buf_ptr++ = priv->writelen; memcpy(buf_ptr, priv->writebuf, priv->writelen); if (debug == 1) { for (i = 0; i < priv->writelen; i++) sprintf(priv->dbgbuf + i*2 , "%02X", priv->writebuf[i]); priv->dbgbuf[priv->writelen+i*2] = 0; dbg("%s - writing %i chars : %s", __func__, priv->writelen, priv->dbgbuf); } usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, priv->writelen + 3, iuu_rxcmd, port); result = usb_submit_urb(port->write_urb, GFP_ATOMIC); spin_lock_irqsave(&priv->lock, flags); priv->writelen = 0; spin_unlock_irqrestore(&priv->lock, flags); usb_serial_port_softint(port); return result; } static int iuu_read_buf(struct usb_serial_port *port, int len) { int result; dbg("%s - enter", __func__); usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, len, read_buf_callback, port); result = usb_submit_urb(port->read_urb, GFP_ATOMIC); return result; } static void iuu_uart_read_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; int status; int error = 0; int len = 0; unsigned char *data = urb->transfer_buffer; priv->poll++; dbg("%s - enter", __func__); if (urb->status) { dbg("%s - urb->status = %d", __func__, urb->status); /* error stop all */ return; } if (data == NULL) dbg("%s - data is NULL !!!", __func__); if (urb->actual_length == 1 && data != NULL) len = (int) data[0]; if (urb->actual_length > 1) { dbg("%s - urb->actual_length = %i", __func__, urb->actual_length); error = 1; return; } /* if len > 0 call readbuf */ if (len > 0 && error == 0) { dbg("%s - call read buf - len to read is %i ", __func__, len); status = iuu_read_buf(port, len); return; } /* need to update status ? */ if (priv->poll > 99) { status = iuu_status(port); priv->poll = 0; return; } /* reset waiting ? */ if (priv->reset == 1) { status = iuu_reset(port, 0xC); return; } /* Writebuf is waiting */ spin_lock_irqsave(&priv->lock, flags); if (priv->writelen > 0) { spin_unlock_irqrestore(&priv->lock, flags); status = iuu_bulk_write(port); return; } spin_unlock_irqrestore(&priv->lock, flags); /* if nothing to write call again rxcmd */ dbg("%s - rxcmd recall", __func__); iuu_led_activity_off(urb); } static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port, const u8 *buf, int count) { struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; dbg("%s - enter", __func__); if (count > 256) return -ENOMEM; spin_lock_irqsave(&priv->lock, flags); if (priv->writelen > 0) { /* buffer already filled but not commited */ spin_unlock_irqrestore(&priv->lock, flags); return 0; } /* fill the buffer */ memcpy(priv->writebuf, buf, count); priv->writelen = count; spin_unlock_irqrestore(&priv->lock, flags); return count; } static void read_rxcmd_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; int result; dbg("%s - enter", __func__); dbg("%s - urb->status = %d", __func__, urb->status); if (urb->status) { dbg("%s - urb->status = %d", __func__, urb->status); /* error stop all */ return; } usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, 256, iuu_uart_read_callback, port); result = usb_submit_urb(port->read_urb, GFP_ATOMIC); dbg("%s - submit result = %d", __func__, result); return; } static int iuu_uart_on(struct usb_serial_port *port) { int status; u8 *buf; buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL); if (!buf) return -ENOMEM; buf[0] = IUU_UART_ENABLE; buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF); buf[2] = (u8) (0x00FF & IUU_BAUD_9600); buf[3] = (u8) (0x0F0 & IUU_TWO_STOP_BITS) | (0x07 & IUU_PARITY_EVEN); status = bulk_immediate(port, buf, 4); if (status != IUU_OPERATION_OK) { dbg("%s - uart_on error", __func__); goto uart_enable_failed; } /* iuu_reset() the card after iuu_uart_on() */ status = iuu_uart_flush(port); if (status != IUU_OPERATION_OK) dbg("%s - uart_flush error", __func__); uart_enable_failed: kfree(buf); return status; } /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */ static int iuu_uart_off(struct usb_serial_port *port) { int status; u8 *buf; buf = kmalloc(1, GFP_KERNEL); if (!buf) return -ENOMEM; buf[0] = IUU_UART_DISABLE; status = bulk_immediate(port, buf, 1); if (status != IUU_OPERATION_OK) dbg("%s - uart_off error", __func__); kfree(buf); return status; } static int iuu_uart_baud(struct usb_serial_port *port, u32 baud, u32 *actual, u8 parity) { int status; u8 *dataout; u8 DataCount = 0; u8 T1Frekvens = 0; u8 T1reload = 0; unsigned int T1FrekvensHZ = 0; dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL); if (!dataout) return -ENOMEM; if (baud < 1200 || baud > 230400) { kfree(dataout); return IUU_INVALID_PARAMETER; } if (baud > 977) { T1Frekvens = 3; T1FrekvensHZ = 500000; } if (baud > 3906) { T1Frekvens = 2; T1FrekvensHZ = 2000000; } if (baud > 11718) { T1Frekvens = 1; T1FrekvensHZ = 6000000; } if (baud > 46875) { T1Frekvens = 0; T1FrekvensHZ = 24000000; } T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2)); /* magic number here: ENTER_FIRMWARE_UPDATE; */ dataout[DataCount++] = IUU_UART_ESC; /* magic number here: CHANGE_BAUD; */ dataout[DataCount++] = IUU_UART_CHANGE; dataout[DataCount++] = T1Frekvens; dataout[DataCount++] = T1reload; *actual = (T1FrekvensHZ / (256 - T1reload)) / 2; switch (parity & 0x0F) { case IUU_PARITY_NONE: dataout[DataCount++] = 0x00; break; case IUU_PARITY_EVEN: dataout[DataCount++] = 0x01; break; case IUU_PARITY_ODD: dataout[DataCount++] = 0x02; break; case IUU_PARITY_MARK: dataout[DataCount++] = 0x03; break; case IUU_PARITY_SPACE: dataout[DataCount++] = 0x04; break; default: kfree(dataout); return IUU_INVALID_PARAMETER; break; } switch (parity & 0xF0) { case IUU_ONE_STOP_BIT: dataout[DataCount - 1] |= IUU_ONE_STOP_BIT; break; case IUU_TWO_STOP_BITS: dataout[DataCount - 1] |= IUU_TWO_STOP_BITS; break; default: kfree(dataout); return IUU_INVALID_PARAMETER; break; } status = bulk_immediate(port, dataout, DataCount); if (status != IUU_OPERATION_OK) dbg("%s - uart_off error", __func__); kfree(dataout); return status; } static int set_control_lines(struct usb_device *dev, u8 value) { return 0; } static void iuu_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { /* iuu_led (port,255,0,0,0); */ struct usb_serial *serial; struct iuu_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int c_cflag; serial = port->serial; if (!serial) return; dbg("%s - port %d", __func__, port->number); iuu_uart_off(port); if (serial->dev) { if (tty) { c_cflag = tty->termios->c_cflag; if (c_cflag & HUPCL) { /* drop DTR and RTS */ priv = usb_get_serial_port_data(port); spin_lock_irqsave(&priv->lock, flags); priv->line_control = 0; spin_unlock_irqrestore(&priv->lock, flags); set_control_lines(port->serial->dev, 0); } } /* free writebuf */ /* shutdown our urbs */ dbg("%s - shutting down urbs", __func__); usb_kill_urb(port->write_urb); usb_kill_urb(port->read_urb); usb_kill_urb(port->interrupt_in_urb); msleep(1000); /* wait one second to free all buffers */ iuu_led(port, 0, 0, 0xF000, 0xFF); msleep(1000); usb_reset_device(port->serial->dev); } } static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp) { struct usb_serial *serial = port->serial; u8 *buf; int result; u32 actual; unsigned long flags; struct iuu_private *priv = usb_get_serial_port_data(port); dbg("%s - port %d", __func__, port->number); usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); buf = kmalloc(10, GFP_KERNEL); if (buf == NULL) return -ENOMEM; /* fixup the endpoint buffer size */ kfree(port->bulk_out_buffer); port->bulk_out_buffer = kmalloc(512, GFP_KERNEL); port->bulk_out_size = 512; kfree(port->bulk_in_buffer); port->bulk_in_buffer = kmalloc(512, GFP_KERNEL); port->bulk_in_size = 512; if (!port->bulk_out_buffer || !port->bulk_in_buffer) { kfree(port->bulk_out_buffer); kfree(port->bulk_in_buffer); kfree(buf); return -ENOMEM; } usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->bulk_out_buffer, 512, NULL, NULL); usb_fill_bulk_urb(port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), port->bulk_in_buffer, 512, NULL, NULL); /* set the termios structure */ spin_lock_irqsave(&priv->lock, flags); if (tty && !priv->termios_initialized) { *(tty->termios) = tty_std_termios; tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 | TIOCM_CTS | CSTOPB | PARENB; tty->termios->c_ispeed = 9600; tty->termios->c_ospeed = 9600; tty->termios->c_lflag = 0; tty->termios->c_oflag = 0; tty->termios->c_iflag = 0; priv->termios_initialized = 1; tty->low_latency = 1; priv->poll = 0; } spin_unlock_irqrestore(&priv->lock, flags); /* initialize writebuf */ #define FISH(a, b, c, d) do { \ result = usb_control_msg(port->serial->dev, \ usb_rcvctrlpipe(port->serial->dev, 0), \ b, a, c, d, buf, 1, 1000); \ dbg("0x%x:0x%x:0x%x:0x%x %d - %x", a, b, c, d, result, \ buf[0]); } while (0); #define SOUP(a, b, c, d) do { \ result = usb_control_msg(port->serial->dev, \ usb_sndctrlpipe(port->serial->dev, 0), \ b, a, c, d, NULL, 0, 1000); \ dbg("0x%x:0x%x:0x%x:0x%x %d", a, b, c, d, result); } while (0) /* This is not UART related but IUU USB driver related or something */ /* like that. Basically no IUU will accept any commands from the USB */ /* host unless it has received the following message */ /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */ SOUP(0x03, 0x02, 0x02, 0x0); kfree(buf); iuu_led(port, 0xF000, 0xF000, 0, 0xFF); iuu_uart_on(port); if (boost < 100) boost = 100; switch (clockmode) { case 2: /* 3.680 Mhz */ iuu_clk(port, IUU_CLK_3680000 * boost / 100); result = iuu_uart_baud(port, 9600 * boost / 100, &actual, IUU_PARITY_EVEN); break; case 3: /* 6.00 Mhz */ iuu_clk(port, IUU_CLK_6000000 * boost / 100); result = iuu_uart_baud(port, 16457 * boost / 100, &actual, IUU_PARITY_EVEN); break; default: /* 3.579 Mhz */ iuu_clk(port, IUU_CLK_3579000 * boost / 100); result = iuu_uart_baud(port, 9600 * boost / 100, &actual, IUU_PARITY_EVEN); } /* set the cardin cardout signals */ switch (cdmode) { case 0: iuu_cardin = 0; iuu_cardout = 0; break; case 1: iuu_cardin = TIOCM_CD; iuu_cardout = 0; break; case 2: iuu_cardin = 0; iuu_cardout = TIOCM_CD; break; case 3: iuu_cardin = TIOCM_DSR; iuu_cardout = 0; break; case 4: iuu_cardin = 0; iuu_cardout = TIOCM_DSR; break; case 5: iuu_cardin = TIOCM_CTS; iuu_cardout = 0; break; case 6: iuu_cardin = 0; iuu_cardout = TIOCM_CTS; break; case 7: iuu_cardin = TIOCM_RNG; iuu_cardout = 0; break; case 8: iuu_cardin = 0; iuu_cardout = TIOCM_RNG; } iuu_uart_flush(port); dbg("%s - initialization done", __func__); memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 1, read_rxcmd_callback, port); result = usb_submit_urb(port->write_urb, GFP_KERNEL); if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); iuu_close(tty, port, NULL); return -EPROTO; } else { dbg("%s - rxcmd OK", __func__); } return result; } static struct usb_serial_driver iuu_device = { .driver = { .owner = THIS_MODULE, .name = "iuu_phoenix", }, .id_table = id_table, .num_ports = 1, .open = iuu_open, .close = iuu_close, .write = iuu_uart_write, .read_bulk_callback = iuu_uart_read_callback, .tiocmget = iuu_tiocmget, .tiocmset = iuu_tiocmset, .attach = iuu_startup, .shutdown = iuu_shutdown, }; static int __init iuu_init(void) { int retval; retval = usb_serial_register(&iuu_device); if (retval) goto failed_usb_serial_register; retval = usb_register(&iuu_driver); if (retval) goto failed_usb_register; info(DRIVER_DESC " " DRIVER_VERSION); return 0; failed_usb_register: usb_serial_deregister(&iuu_device); failed_usb_serial_register: return retval; } static void __exit iuu_exit(void) { usb_deregister(&iuu_driver); usb_serial_deregister(&iuu_device); } module_init(iuu_init); module_exit(iuu_exit); MODULE_AUTHOR("Alain Degreffe eczema@ecze.com"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_VERSION(DRIVER_VERSION); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug enabled or not"); module_param(xmas, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(xmas, "xmas color enabled or not"); module_param(boost, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(boost, "overclock boost percent 100 to 500"); module_param(clockmode, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(clockmode, "1=3Mhz579,2=3Mhz680,3=6Mhz"); module_param(cdmode, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(cdmode, "Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, " "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING");