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Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / usb / serial / kobil_sct.c
bloba92a3efb507bdaa45f7134919b30c4bf8b495917
1 /*
2 * KOBIL USB Smart Card Terminal Driver
3 *
4 * Copyright (C) 2002 KOBIL Systems GmbH
5 * Author: Thomas Wahrenbruch
6 *
7 * Contact: linuxusb@kobil.de
8 *
9 * This program is largely derived from work by the linux-usb group
10 * and associated source files. Please see the usb/serial files for
11 * individual credits and copyrights.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
19 * patience.
20 *
21 * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
22 * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
23 */
24
25
26 #include <linux/kernel.h>
27 #include <linux/errno.h>
28 #include <linux/init.h>
29 #include <linux/slab.h>
30 #include <linux/tty.h>
31 #include <linux/tty_driver.h>
32 #include <linux/tty_flip.h>
33 #include <linux/module.h>
34 #include <linux/spinlock.h>
35 #include <linux/uaccess.h>
36 #include <linux/usb.h>
37 #include <linux/usb/serial.h>
38 #include <linux/ioctl.h>
39 #include "kobil_sct.h"
40
41 static bool debug;
42
43 /* Version Information */
44 #define DRIVER_VERSION "21/05/2004"
45 #define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
46 #define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
47
48 #define KOBIL_VENDOR_ID 0x0D46
49 #define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
50 #define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
51 #define KOBIL_USBTWIN_PRODUCT_ID 0x0078
52 #define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
53
54 #define KOBIL_TIMEOUT 500
55 #define KOBIL_BUF_LENGTH 300
56
57
58 /* Function prototypes */
59 static int kobil_startup(struct usb_serial *serial);
60 static void kobil_release(struct usb_serial *serial);
61 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
62 static void kobil_close(struct usb_serial_port *port);
63 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
64 const unsigned char *buf, int count);
65 static int kobil_write_room(struct tty_struct *tty);
66 static int kobil_ioctl(struct tty_struct *tty,
67 unsigned int cmd, unsigned long arg);
68 static int kobil_tiocmget(struct tty_struct *tty);
69 static int kobil_tiocmset(struct tty_struct *tty,
70 unsigned int set, unsigned int clear);
71 static void kobil_read_int_callback(struct urb *urb);
72 static void kobil_write_callback(struct urb *purb);
73 static void kobil_set_termios(struct tty_struct *tty,
74 struct usb_serial_port *port, struct ktermios *old);
75 static void kobil_init_termios(struct tty_struct *tty);
76
77 static const struct usb_device_id id_table[] = {
78 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
79 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
80 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
81 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
82 { } /* Terminating entry */
83 };
84
85
86 MODULE_DEVICE_TABLE(usb, id_table);
87
88 static struct usb_driver kobil_driver = {
89 .name = "kobil",
90 .probe = usb_serial_probe,
91 .disconnect = usb_serial_disconnect,
92 .id_table = id_table,
93 .no_dynamic_id = 1,
94 };
95
96
97 static struct usb_serial_driver kobil_device = {
98 .driver = {
99 .owner = THIS_MODULE,
100 .name = "kobil",
101 },
102 .description = "KOBIL USB smart card terminal",
103 .usb_driver = &kobil_driver,
104 .id_table = id_table,
105 .num_ports = 1,
106 .attach = kobil_startup,
107 .release = kobil_release,
108 .ioctl = kobil_ioctl,
109 .set_termios = kobil_set_termios,
110 .init_termios = kobil_init_termios,
111 .tiocmget = kobil_tiocmget,
112 .tiocmset = kobil_tiocmset,
113 .open = kobil_open,
114 .close = kobil_close,
115 .write = kobil_write,
116 .write_room = kobil_write_room,
117 .read_int_callback = kobil_read_int_callback,
118 };
119
120
121 struct kobil_private {
122 int write_int_endpoint_address;
123 int read_int_endpoint_address;
124 unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
125 int filled; /* index of the last char in buf */
126 int cur_pos; /* index of the next char to send in buf */
127 __u16 device_type;
128 };
129
130
131 static int kobil_startup(struct usb_serial *serial)
132 {
133 int i;
134 struct kobil_private *priv;
135 struct usb_device *pdev;
136 struct usb_host_config *actconfig;
137 struct usb_interface *interface;
138 struct usb_host_interface *altsetting;
139 struct usb_host_endpoint *endpoint;
140
141 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
142 if (!priv)
143 return -ENOMEM;
144
145 priv->filled = 0;
146 priv->cur_pos = 0;
147 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
148
149 switch (priv->device_type) {
150 case KOBIL_ADAPTER_B_PRODUCT_ID:
151 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
152 break;
153 case KOBIL_ADAPTER_K_PRODUCT_ID:
154 printk(KERN_DEBUG
155 "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
156 break;
157 case KOBIL_USBTWIN_PRODUCT_ID:
158 printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
159 break;
160 case KOBIL_KAAN_SIM_PRODUCT_ID:
161 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
162 break;
163 }
164 usb_set_serial_port_data(serial->port[0], priv);
165
166 /* search for the necessary endpoints */
167 pdev = serial->dev;
168 actconfig = pdev->actconfig;
169 interface = actconfig->interface[0];
170 altsetting = interface->cur_altsetting;
171 endpoint = altsetting->endpoint;
172
173 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
174 endpoint = &altsetting->endpoint[i];
175 if (usb_endpoint_is_int_out(&endpoint->desc)) {
176 dbg("%s Found interrupt out endpoint. Address: %d",
177 __func__, endpoint->desc.bEndpointAddress);
178 priv->write_int_endpoint_address =
179 endpoint->desc.bEndpointAddress;
180 }
181 if (usb_endpoint_is_int_in(&endpoint->desc)) {
182 dbg("%s Found interrupt in endpoint. Address: %d",
183 __func__, endpoint->desc.bEndpointAddress);
184 priv->read_int_endpoint_address =
185 endpoint->desc.bEndpointAddress;
186 }
187 }
188 return 0;
189 }
190
191
192 static void kobil_release(struct usb_serial *serial)
193 {
194 int i;
195 dbg("%s - port %d", __func__, serial->port[0]->number);
196
197 for (i = 0; i < serial->num_ports; ++i)
198 kfree(usb_get_serial_port_data(serial->port[i]));
199 }
200
201 static void kobil_init_termios(struct tty_struct *tty)
202 {
203 /* Default to echo off and other sane device settings */
204 tty->termios->c_lflag = 0;
205 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
206 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
207 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
208 tty->termios->c_oflag &= ~ONLCR;
209 }
210
211 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
212 {
213 int result = 0;
214 struct kobil_private *priv;
215 unsigned char *transfer_buffer;
216 int transfer_buffer_length = 8;
217 int write_urb_transfer_buffer_length = 8;
218
219 dbg("%s - port %d", __func__, port->number);
220 priv = usb_get_serial_port_data(port);
221
222 /* allocate memory for transfer buffer */
223 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
224 if (!transfer_buffer)
225 return -ENOMEM;
226
227 /* allocate write_urb */
228 if (!port->write_urb) {
229 dbg("%s - port %d Allocating port->write_urb",
230 __func__, port->number);
231 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
232 if (!port->write_urb) {
233 dbg("%s - port %d usb_alloc_urb failed",
234 __func__, port->number);
235 kfree(transfer_buffer);
236 return -ENOMEM;
237 }
238 }
239
240 /* allocate memory for write_urb transfer buffer */
241 port->write_urb->transfer_buffer =
242 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
243 if (!port->write_urb->transfer_buffer) {
244 kfree(transfer_buffer);
245 usb_free_urb(port->write_urb);
246 port->write_urb = NULL;
247 return -ENOMEM;
248 }
249
250 /* get hardware version */
251 result = usb_control_msg(port->serial->dev,
252 usb_rcvctrlpipe(port->serial->dev, 0),
253 SUSBCRequest_GetMisc,
254 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
255 SUSBCR_MSC_GetHWVersion,
256 0,
257 transfer_buffer,
258 transfer_buffer_length,
259 KOBIL_TIMEOUT
260 );
261 dbg("%s - port %d Send get_HW_version URB returns: %i",
262 __func__, port->number, result);
263 dbg("Harware version: %i.%i.%i",
264 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
265
266 /* get firmware version */
267 result = usb_control_msg(port->serial->dev,
268 usb_rcvctrlpipe(port->serial->dev, 0),
269 SUSBCRequest_GetMisc,
270 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
271 SUSBCR_MSC_GetFWVersion,
272 0,
273 transfer_buffer,
274 transfer_buffer_length,
275 KOBIL_TIMEOUT
276 );
277 dbg("%s - port %d Send get_FW_version URB returns: %i",
278 __func__, port->number, result);
279 dbg("Firmware version: %i.%i.%i",
280 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
281
282 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
283 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
284 /* Setting Baudrate, Parity and Stopbits */
285 result = usb_control_msg(port->serial->dev,
286 usb_rcvctrlpipe(port->serial->dev, 0),
287 SUSBCRequest_SetBaudRateParityAndStopBits,
288 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
289 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
290 SUSBCR_SPASB_1StopBit,
291 0,
292 transfer_buffer,
293 0,
294 KOBIL_TIMEOUT
295 );
296 dbg("%s - port %d Send set_baudrate URB returns: %i",
297 __func__, port->number, result);
298
299 /* reset all queues */
300 result = usb_control_msg(port->serial->dev,
301 usb_rcvctrlpipe(port->serial->dev, 0),
302 SUSBCRequest_Misc,
303 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
304 SUSBCR_MSC_ResetAllQueues,
305 0,
306 transfer_buffer,
307 0,
308 KOBIL_TIMEOUT
309 );
310 dbg("%s - port %d Send reset_all_queues URB returns: %i",
311 __func__, port->number, result);
312 }
313 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
314 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
315 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
316 /* start reading (Adapter B 'cause PNP string) */
317 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
318 dbg("%s - port %d Send read URB returns: %i",
319 __func__, port->number, result);
320 }
321
322 kfree(transfer_buffer);
323 return 0;
324 }
325
326
327 static void kobil_close(struct usb_serial_port *port)
328 {
329 dbg("%s - port %d", __func__, port->number);
330
331 /* FIXME: Add rts/dtr methods */
332 if (port->write_urb) {
333 usb_poison_urb(port->write_urb);
334 kfree(port->write_urb->transfer_buffer);
335 usb_free_urb(port->write_urb);
336 port->write_urb = NULL;
337 }
338 usb_kill_urb(port->interrupt_in_urb);
339 }
340
341
342 static void kobil_read_int_callback(struct urb *urb)
343 {
344 int result;
345 struct usb_serial_port *port = urb->context;
346 struct tty_struct *tty;
347 unsigned char *data = urb->transfer_buffer;
348 int status = urb->status;
349 /* char *dbg_data; */
350
351 dbg("%s - port %d", __func__, port->number);
352
353 if (status) {
354 dbg("%s - port %d Read int status not zero: %d",
355 __func__, port->number, status);
356 return;
357 }
358
359 tty = tty_port_tty_get(&port->port);
360 if (tty && urb->actual_length) {
361
362 /* BEGIN DEBUG */
363 /*
364 dbg_data = kzalloc((3 * purb->actual_length + 10)
365 * sizeof(char), GFP_KERNEL);
366 if (! dbg_data) {
367 return;
368 }
369 for (i = 0; i < purb->actual_length; i++) {
370 sprintf(dbg_data +3*i, "%02X ", data[i]);
371 }
372 dbg(" <-- %s", dbg_data);
373 kfree(dbg_data);
374 */
375 /* END DEBUG */
376
377 tty_insert_flip_string(tty, data, urb->actual_length);
378 tty_flip_buffer_push(tty);
379 }
380 tty_kref_put(tty);
381
382 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
383 dbg("%s - port %d Send read URB returns: %i",
384 __func__, port->number, result);
385 }
386
387
388 static void kobil_write_callback(struct urb *purb)
389 {
390 }
391
392
393 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
394 const unsigned char *buf, int count)
395 {
396 int length = 0;
397 int result = 0;
398 int todo = 0;
399 struct kobil_private *priv;
400
401 if (count == 0) {
402 dbg("%s - port %d write request of 0 bytes",
403 __func__, port->number);
404 return 0;
405 }
406
407 priv = usb_get_serial_port_data(port);
408
409 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
410 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number);
411 return -ENOMEM;
412 }
413
414 /* Copy data to buffer */
415 memcpy(priv->buf + priv->filled, buf, count);
416 usb_serial_debug_data(debug, &port->dev, __func__, count,
417 priv->buf + priv->filled);
418 priv->filled = priv->filled + count;
419
420 /* only send complete block. TWIN, KAAN SIM and adapter K
421 use the same protocol. */
422 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
423 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
424 /* stop reading (except TWIN and KAAN SIM) */
425 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
426 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
427 usb_kill_urb(port->interrupt_in_urb);
428
429 todo = priv->filled - priv->cur_pos;
430
431 while (todo > 0) {
432 /* max 8 byte in one urb (endpoint size) */
433 length = (todo < 8) ? todo : 8;
434 /* copy data to transfer buffer */
435 memcpy(port->write_urb->transfer_buffer,
436 priv->buf + priv->cur_pos, length);
437 usb_fill_int_urb(port->write_urb,
438 port->serial->dev,
439 usb_sndintpipe(port->serial->dev,
440 priv->write_int_endpoint_address),
441 port->write_urb->transfer_buffer,
442 length,
443 kobil_write_callback,
444 port,
445 8
446 );
447
448 priv->cur_pos = priv->cur_pos + length;
449 result = usb_submit_urb(port->write_urb, GFP_NOIO);
450 dbg("%s - port %d Send write URB returns: %i",
451 __func__, port->number, result);
452 todo = priv->filled - priv->cur_pos;
453
454 if (todo > 0)
455 msleep(24);
456 }
457
458 priv->filled = 0;
459 priv->cur_pos = 0;
460
461 /* start reading (except TWIN and KAAN SIM) */
462 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
463 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
464 result = usb_submit_urb(port->interrupt_in_urb,
465 GFP_NOIO);
466 dbg("%s - port %d Send read URB returns: %i",
467 __func__, port->number, result);
468 }
469 }
470 return count;
471 }
472
473
474 static int kobil_write_room(struct tty_struct *tty)
475 {
476 /* dbg("%s - port %d", __func__, port->number); */
477 /* FIXME */
478 return 8;
479 }
480
481
482 static int kobil_tiocmget(struct tty_struct *tty)
483 {
484 struct usb_serial_port *port = tty->driver_data;
485 struct kobil_private *priv;
486 int result;
487 unsigned char *transfer_buffer;
488 int transfer_buffer_length = 8;
489
490 priv = usb_get_serial_port_data(port);
491 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
492 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
493 /* This device doesn't support ioctl calls */
494 return -EINVAL;
495 }
496
497 /* allocate memory for transfer buffer */
498 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
499 if (!transfer_buffer)
500 return -ENOMEM;
501
502 result = usb_control_msg(port->serial->dev,
503 usb_rcvctrlpipe(port->serial->dev, 0),
504 SUSBCRequest_GetStatusLineState,
505 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
506 0,
507 0,
508 transfer_buffer,
509 transfer_buffer_length,
510 KOBIL_TIMEOUT);
511
512 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
513 __func__, port->number, result, transfer_buffer[0]);
514
515 result = 0;
516 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
517 result = TIOCM_DSR;
518 kfree(transfer_buffer);
519 return result;
520 }
521
522 static int kobil_tiocmset(struct tty_struct *tty,
523 unsigned int set, unsigned int clear)
524 {
525 struct usb_serial_port *port = tty->driver_data;
526 struct kobil_private *priv;
527 int result;
528 int dtr = 0;
529 int rts = 0;
530 unsigned char *transfer_buffer;
531 int transfer_buffer_length = 8;
532
533 /* FIXME: locking ? */
534 priv = usb_get_serial_port_data(port);
535 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
536 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
537 /* This device doesn't support ioctl calls */
538 return -EINVAL;
539 }
540
541 /* allocate memory for transfer buffer */
542 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
543 if (!transfer_buffer)
544 return -ENOMEM;
545
546 if (set & TIOCM_RTS)
547 rts = 1;
548 if (set & TIOCM_DTR)
549 dtr = 1;
550 if (clear & TIOCM_RTS)
551 rts = 0;
552 if (clear & TIOCM_DTR)
553 dtr = 0;
554
555 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
556 if (dtr != 0)
557 dbg("%s - port %d Setting DTR",
558 __func__, port->number);
559 else
560 dbg("%s - port %d Clearing DTR",
561 __func__, port->number);
562 result = usb_control_msg(port->serial->dev,
563 usb_rcvctrlpipe(port->serial->dev, 0),
564 SUSBCRequest_SetStatusLinesOrQueues,
565 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
566 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
567 0,
568 transfer_buffer,
569 0,
570 KOBIL_TIMEOUT);
571 } else {
572 if (rts != 0)
573 dbg("%s - port %d Setting RTS",
574 __func__, port->number);
575 else
576 dbg("%s - port %d Clearing RTS",
577 __func__, port->number);
578 result = usb_control_msg(port->serial->dev,
579 usb_rcvctrlpipe(port->serial->dev, 0),
580 SUSBCRequest_SetStatusLinesOrQueues,
581 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
582 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
583 0,
584 transfer_buffer,
585 0,
586 KOBIL_TIMEOUT);
587 }
588 dbg("%s - port %d Send set_status_line URB returns: %i",
589 __func__, port->number, result);
590 kfree(transfer_buffer);
591 return (result < 0) ? result : 0;
592 }
593
594 static void kobil_set_termios(struct tty_struct *tty,
595 struct usb_serial_port *port, struct ktermios *old)
596 {
597 struct kobil_private *priv;
598 int result;
599 unsigned short urb_val = 0;
600 int c_cflag = tty->termios->c_cflag;
601 speed_t speed;
602
603 priv = usb_get_serial_port_data(port);
604 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
605 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
606 /* This device doesn't support ioctl calls */
607 *tty->termios = *old;
608 return;
609 }
610
611 speed = tty_get_baud_rate(tty);
612 switch (speed) {
613 case 1200:
614 urb_val = SUSBCR_SBR_1200;
615 break;
616 default:
617 speed = 9600;
618 case 9600:
619 urb_val = SUSBCR_SBR_9600;
620 break;
621 }
622 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
623 SUSBCR_SPASB_1StopBit;
624 if (c_cflag & PARENB) {
625 if (c_cflag & PARODD)
626 urb_val |= SUSBCR_SPASB_OddParity;
627 else
628 urb_val |= SUSBCR_SPASB_EvenParity;
629 } else
630 urb_val |= SUSBCR_SPASB_NoParity;
631 tty->termios->c_cflag &= ~CMSPAR;
632 tty_encode_baud_rate(tty, speed, speed);
633
634 result = usb_control_msg(port->serial->dev,
635 usb_rcvctrlpipe(port->serial->dev, 0),
636 SUSBCRequest_SetBaudRateParityAndStopBits,
637 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
638 urb_val,
639 0,
640 NULL,
641 0,
642 KOBIL_TIMEOUT
643 );
644 }
645
646 static int kobil_ioctl(struct tty_struct *tty,
647 unsigned int cmd, unsigned long arg)
648 {
649 struct usb_serial_port *port = tty->driver_data;
650 struct kobil_private *priv = usb_get_serial_port_data(port);
651 unsigned char *transfer_buffer;
652 int transfer_buffer_length = 8;
653 int result;
654
655 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
656 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
657 /* This device doesn't support ioctl calls */
658 return -ENOIOCTLCMD;
659
660 switch (cmd) {
661 case TCFLSH:
662 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
663 if (!transfer_buffer)
664 return -ENOBUFS;
665
666 result = usb_control_msg(port->serial->dev,
667 usb_rcvctrlpipe(port->serial->dev, 0),
668 SUSBCRequest_Misc,
669 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
670 SUSBCR_MSC_ResetAllQueues,
671 0,
672 NULL, /* transfer_buffer, */
673 0,
674 KOBIL_TIMEOUT
675 );
676
677 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
678 kfree(transfer_buffer);
679 return (result < 0) ? -EIO: 0;
680 default:
681 return -ENOIOCTLCMD;
682 }
683 }
684
685 static int __init kobil_init(void)
686 {
687 int retval;
688 retval = usb_serial_register(&kobil_device);
689 if (retval)
690 goto failed_usb_serial_register;
691 retval = usb_register(&kobil_driver);
692 if (retval)
693 goto failed_usb_register;
694
695 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
696 DRIVER_DESC "\n");
697
698 return 0;
699 failed_usb_register:
700 usb_serial_deregister(&kobil_device);
701 failed_usb_serial_register:
702 return retval;
703 }
704
705
706 static void __exit kobil_exit(void)
707 {
708 usb_deregister(&kobil_driver);
709 usb_serial_deregister(&kobil_device);
710 }
711
712 module_init(kobil_init);
713 module_exit(kobil_exit);
714
715 MODULE_AUTHOR(DRIVER_AUTHOR);
716 MODULE_DESCRIPTION(DRIVER_DESC);
717 MODULE_LICENSE("GPL");
718
719 module_param(debug, bool, S_IRUGO | S_IWUSR);
720 MODULE_PARM_DESC(debug, "Debug enabled or not");