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Adds a nolock function to the w1 interface to avoid locking the
[linux-2.6/next.git] / drivers / usb / serial / kobil_sct.c
blobddd146300ddb5ba5f0defd5ca63a7c00849cb382
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 * (21/05/2004) tw
25 * Fix bug with P'n'P readers
26 *
27 * (28/05/2003) tw
28 * Add support for KAAN SIM
29 *
30 * (12/09/2002) tw
31 * Adapted to 2.5.
32 *
33 * (11/08/2002) tw
34 * Initial version.
35 */
36
37
38 #include <linux/kernel.h>
39 #include <linux/errno.h>
40 #include <linux/init.h>
41 #include <linux/slab.h>
42 #include <linux/tty.h>
43 #include <linux/tty_driver.h>
44 #include <linux/tty_flip.h>
45 #include <linux/module.h>
46 #include <linux/spinlock.h>
47 #include <linux/uaccess.h>
48 #include <linux/usb.h>
49 #include <linux/usb/serial.h>
50 #include <linux/ioctl.h>
51 #include "kobil_sct.h"
52
53 static int debug;
54
55 /* Version Information */
56 #define DRIVER_VERSION "21/05/2004"
57 #define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
58 #define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
59
60 #define KOBIL_VENDOR_ID 0x0D46
61 #define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
62 #define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
63 #define KOBIL_USBTWIN_PRODUCT_ID 0x0078
64 #define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
65
66 #define KOBIL_TIMEOUT 500
67 #define KOBIL_BUF_LENGTH 300
68
69
70 /* Function prototypes */
71 static int kobil_startup(struct usb_serial *serial);
72 static void kobil_release(struct usb_serial *serial);
73 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
74 static void kobil_close(struct usb_serial_port *port);
75 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
76 const unsigned char *buf, int count);
77 static int kobil_write_room(struct tty_struct *tty);
78 static int kobil_ioctl(struct tty_struct *tty,
79 unsigned int cmd, unsigned long arg);
80 static int kobil_tiocmget(struct tty_struct *tty);
81 static int kobil_tiocmset(struct tty_struct *tty,
82 unsigned int set, unsigned int clear);
83 static void kobil_read_int_callback(struct urb *urb);
84 static void kobil_write_callback(struct urb *purb);
85 static void kobil_set_termios(struct tty_struct *tty,
86 struct usb_serial_port *port, struct ktermios *old);
87 static void kobil_init_termios(struct tty_struct *tty);
88
89 static const struct usb_device_id id_table[] = {
90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
93 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
94 { } /* Terminating entry */
95 };
96
97
98 MODULE_DEVICE_TABLE(usb, id_table);
99
100 static struct usb_driver kobil_driver = {
101 .name = "kobil",
102 .probe = usb_serial_probe,
103 .disconnect = usb_serial_disconnect,
104 .id_table = id_table,
105 .no_dynamic_id = 1,
106 };
107
108
109 static struct usb_serial_driver kobil_device = {
110 .driver = {
111 .owner = THIS_MODULE,
112 .name = "kobil",
113 },
114 .description = "KOBIL USB smart card terminal",
115 .usb_driver = &kobil_driver,
116 .id_table = id_table,
117 .num_ports = 1,
118 .attach = kobil_startup,
119 .release = kobil_release,
120 .ioctl = kobil_ioctl,
121 .set_termios = kobil_set_termios,
122 .init_termios = kobil_init_termios,
123 .tiocmget = kobil_tiocmget,
124 .tiocmset = kobil_tiocmset,
125 .open = kobil_open,
126 .close = kobil_close,
127 .write = kobil_write,
128 .write_room = kobil_write_room,
129 .read_int_callback = kobil_read_int_callback,
130 };
131
132
133 struct kobil_private {
134 int write_int_endpoint_address;
135 int read_int_endpoint_address;
136 unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
137 int filled; /* index of the last char in buf */
138 int cur_pos; /* index of the next char to send in buf */
139 __u16 device_type;
140 };
141
142
143 static int kobil_startup(struct usb_serial *serial)
144 {
145 int i;
146 struct kobil_private *priv;
147 struct usb_device *pdev;
148 struct usb_host_config *actconfig;
149 struct usb_interface *interface;
150 struct usb_host_interface *altsetting;
151 struct usb_host_endpoint *endpoint;
152
153 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
154 if (!priv)
155 return -ENOMEM;
156
157 priv->filled = 0;
158 priv->cur_pos = 0;
159 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
160
161 switch (priv->device_type) {
162 case KOBIL_ADAPTER_B_PRODUCT_ID:
163 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
164 break;
165 case KOBIL_ADAPTER_K_PRODUCT_ID:
166 printk(KERN_DEBUG
167 "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
168 break;
169 case KOBIL_USBTWIN_PRODUCT_ID:
170 printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
171 break;
172 case KOBIL_KAAN_SIM_PRODUCT_ID:
173 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
174 break;
175 }
176 usb_set_serial_port_data(serial->port[0], priv);
177
178 /* search for the necessary endpoints */
179 pdev = serial->dev;
180 actconfig = pdev->actconfig;
181 interface = actconfig->interface[0];
182 altsetting = interface->cur_altsetting;
183 endpoint = altsetting->endpoint;
184
185 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
186 endpoint = &altsetting->endpoint[i];
187 if (usb_endpoint_is_int_out(&endpoint->desc)) {
188 dbg("%s Found interrupt out endpoint. Address: %d",
189 __func__, endpoint->desc.bEndpointAddress);
190 priv->write_int_endpoint_address =
191 endpoint->desc.bEndpointAddress;
192 }
193 if (usb_endpoint_is_int_in(&endpoint->desc)) {
194 dbg("%s Found interrupt in endpoint. Address: %d",
195 __func__, endpoint->desc.bEndpointAddress);
196 priv->read_int_endpoint_address =
197 endpoint->desc.bEndpointAddress;
198 }
199 }
200 return 0;
201 }
202
203
204 static void kobil_release(struct usb_serial *serial)
205 {
206 int i;
207 dbg("%s - port %d", __func__, serial->port[0]->number);
208
209 for (i = 0; i < serial->num_ports; ++i)
210 kfree(usb_get_serial_port_data(serial->port[i]));
211 }
212
213 static void kobil_init_termios(struct tty_struct *tty)
214 {
215 /* Default to echo off and other sane device settings */
216 tty->termios->c_lflag = 0;
217 tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
218 tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
219 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
220 tty->termios->c_oflag &= ~ONLCR;
221 }
222
223 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
224 {
225 int result = 0;
226 struct kobil_private *priv;
227 unsigned char *transfer_buffer;
228 int transfer_buffer_length = 8;
229 int write_urb_transfer_buffer_length = 8;
230
231 dbg("%s - port %d", __func__, port->number);
232 priv = usb_get_serial_port_data(port);
233
234 /* someone sets the dev to 0 if the close method has been called */
235 port->interrupt_in_urb->dev = port->serial->dev;
236
237 /* allocate memory for transfer buffer */
238 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
239 if (!transfer_buffer)
240 return -ENOMEM;
241
242 /* allocate write_urb */
243 if (!port->write_urb) {
244 dbg("%s - port %d Allocating port->write_urb",
245 __func__, port->number);
246 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
247 if (!port->write_urb) {
248 dbg("%s - port %d usb_alloc_urb failed",
249 __func__, port->number);
250 kfree(transfer_buffer);
251 return -ENOMEM;
252 }
253 }
254
255 /* allocate memory for write_urb transfer buffer */
256 port->write_urb->transfer_buffer =
257 kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
258 if (!port->write_urb->transfer_buffer) {
259 kfree(transfer_buffer);
260 usb_free_urb(port->write_urb);
261 port->write_urb = NULL;
262 return -ENOMEM;
263 }
264
265 /* get hardware version */
266 result = usb_control_msg(port->serial->dev,
267 usb_rcvctrlpipe(port->serial->dev, 0),
268 SUSBCRequest_GetMisc,
269 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
270 SUSBCR_MSC_GetHWVersion,
271 0,
272 transfer_buffer,
273 transfer_buffer_length,
274 KOBIL_TIMEOUT
275 );
276 dbg("%s - port %d Send get_HW_version URB returns: %i",
277 __func__, port->number, result);
278 dbg("Harware version: %i.%i.%i",
279 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
280
281 /* get firmware version */
282 result = usb_control_msg(port->serial->dev,
283 usb_rcvctrlpipe(port->serial->dev, 0),
284 SUSBCRequest_GetMisc,
285 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
286 SUSBCR_MSC_GetFWVersion,
287 0,
288 transfer_buffer,
289 transfer_buffer_length,
290 KOBIL_TIMEOUT
291 );
292 dbg("%s - port %d Send get_FW_version URB returns: %i",
293 __func__, port->number, result);
294 dbg("Firmware version: %i.%i.%i",
295 transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
296
297 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
298 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
299 /* Setting Baudrate, Parity and Stopbits */
300 result = usb_control_msg(port->serial->dev,
301 usb_rcvctrlpipe(port->serial->dev, 0),
302 SUSBCRequest_SetBaudRateParityAndStopBits,
303 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
304 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
305 SUSBCR_SPASB_1StopBit,
306 0,
307 transfer_buffer,
308 0,
309 KOBIL_TIMEOUT
310 );
311 dbg("%s - port %d Send set_baudrate URB returns: %i",
312 __func__, port->number, result);
313
314 /* reset all queues */
315 result = usb_control_msg(port->serial->dev,
316 usb_rcvctrlpipe(port->serial->dev, 0),
317 SUSBCRequest_Misc,
318 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
319 SUSBCR_MSC_ResetAllQueues,
320 0,
321 transfer_buffer,
322 0,
323 KOBIL_TIMEOUT
324 );
325 dbg("%s - port %d Send reset_all_queues URB returns: %i",
326 __func__, port->number, result);
327 }
328 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
329 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
330 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
331 /* start reading (Adapter B 'cause PNP string) */
332 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
333 dbg("%s - port %d Send read URB returns: %i",
334 __func__, port->number, result);
335 }
336
337 kfree(transfer_buffer);
338 return 0;
339 }
340
341
342 static void kobil_close(struct usb_serial_port *port)
343 {
344 dbg("%s - port %d", __func__, port->number);
345
346 /* FIXME: Add rts/dtr methods */
347 if (port->write_urb) {
348 usb_poison_urb(port->write_urb);
349 kfree(port->write_urb->transfer_buffer);
350 usb_free_urb(port->write_urb);
351 port->write_urb = NULL;
352 }
353 usb_kill_urb(port->interrupt_in_urb);
354 }
355
356
357 static void kobil_read_int_callback(struct urb *urb)
358 {
359 int result;
360 struct usb_serial_port *port = urb->context;
361 struct tty_struct *tty;
362 unsigned char *data = urb->transfer_buffer;
363 int status = urb->status;
364 /* char *dbg_data; */
365
366 dbg("%s - port %d", __func__, port->number);
367
368 if (status) {
369 dbg("%s - port %d Read int status not zero: %d",
370 __func__, port->number, status);
371 return;
372 }
373
374 tty = tty_port_tty_get(&port->port);
375 if (tty && urb->actual_length) {
376
377 /* BEGIN DEBUG */
378 /*
379 dbg_data = kzalloc((3 * purb->actual_length + 10)
380 * sizeof(char), GFP_KERNEL);
381 if (! dbg_data) {
382 return;
383 }
384 for (i = 0; i < purb->actual_length; i++) {
385 sprintf(dbg_data +3*i, "%02X ", data[i]);
386 }
387 dbg(" <-- %s", dbg_data);
388 kfree(dbg_data);
389 */
390 /* END DEBUG */
391
392 tty_insert_flip_string(tty, data, urb->actual_length);
393 tty_flip_buffer_push(tty);
394 }
395 tty_kref_put(tty);
396 /* someone sets the dev to 0 if the close method has been called */
397 port->interrupt_in_urb->dev = port->serial->dev;
398
399 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
400 dbg("%s - port %d Send read URB returns: %i",
401 __func__, port->number, result);
402 }
403
404
405 static void kobil_write_callback(struct urb *purb)
406 {
407 }
408
409
410 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
411 const unsigned char *buf, int count)
412 {
413 int length = 0;
414 int result = 0;
415 int todo = 0;
416 struct kobil_private *priv;
417
418 if (count == 0) {
419 dbg("%s - port %d write request of 0 bytes",
420 __func__, port->number);
421 return 0;
422 }
423
424 priv = usb_get_serial_port_data(port);
425
426 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
427 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number);
428 return -ENOMEM;
429 }
430
431 /* Copy data to buffer */
432 memcpy(priv->buf + priv->filled, buf, count);
433 usb_serial_debug_data(debug, &port->dev, __func__, count,
434 priv->buf + priv->filled);
435 priv->filled = priv->filled + count;
436
437 /* only send complete block. TWIN, KAAN SIM and adapter K
438 use the same protocol. */
439 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
440 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
441 /* stop reading (except TWIN and KAAN SIM) */
442 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
443 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
444 usb_kill_urb(port->interrupt_in_urb);
445
446 todo = priv->filled - priv->cur_pos;
447
448 while (todo > 0) {
449 /* max 8 byte in one urb (endpoint size) */
450 length = (todo < 8) ? todo : 8;
451 /* copy data to transfer buffer */
452 memcpy(port->write_urb->transfer_buffer,
453 priv->buf + priv->cur_pos, length);
454 usb_fill_int_urb(port->write_urb,
455 port->serial->dev,
456 usb_sndintpipe(port->serial->dev,
457 priv->write_int_endpoint_address),
458 port->write_urb->transfer_buffer,
459 length,
460 kobil_write_callback,
461 port,
462 8
463 );
464
465 priv->cur_pos = priv->cur_pos + length;
466 result = usb_submit_urb(port->write_urb, GFP_NOIO);
467 dbg("%s - port %d Send write URB returns: %i",
468 __func__, port->number, result);
469 todo = priv->filled - priv->cur_pos;
470
471 if (todo > 0)
472 msleep(24);
473 }
474
475 priv->filled = 0;
476 priv->cur_pos = 0;
477
478 /* someone sets the dev to 0 if the close method
479 has been called */
480 port->interrupt_in_urb->dev = port->serial->dev;
481
482 /* start reading (except TWIN and KAAN SIM) */
483 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
484 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
485 /* someone sets the dev to 0 if the close method has
486 been called */
487 port->interrupt_in_urb->dev = port->serial->dev;
488
489 result = usb_submit_urb(port->interrupt_in_urb,
490 GFP_NOIO);
491 dbg("%s - port %d Send read URB returns: %i",
492 __func__, port->number, result);
493 }
494 }
495 return count;
496 }
497
498
499 static int kobil_write_room(struct tty_struct *tty)
500 {
501 /* dbg("%s - port %d", __func__, port->number); */
502 /* FIXME */
503 return 8;
504 }
505
506
507 static int kobil_tiocmget(struct tty_struct *tty)
508 {
509 struct usb_serial_port *port = tty->driver_data;
510 struct kobil_private *priv;
511 int result;
512 unsigned char *transfer_buffer;
513 int transfer_buffer_length = 8;
514
515 priv = usb_get_serial_port_data(port);
516 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
517 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
518 /* This device doesn't support ioctl calls */
519 return -EINVAL;
520 }
521
522 /* allocate memory for transfer buffer */
523 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
524 if (!transfer_buffer)
525 return -ENOMEM;
526
527 result = usb_control_msg(port->serial->dev,
528 usb_rcvctrlpipe(port->serial->dev, 0),
529 SUSBCRequest_GetStatusLineState,
530 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
531 0,
532 0,
533 transfer_buffer,
534 transfer_buffer_length,
535 KOBIL_TIMEOUT);
536
537 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
538 __func__, port->number, result, transfer_buffer[0]);
539
540 result = 0;
541 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
542 result = TIOCM_DSR;
543 kfree(transfer_buffer);
544 return result;
545 }
546
547 static int kobil_tiocmset(struct tty_struct *tty,
548 unsigned int set, unsigned int clear)
549 {
550 struct usb_serial_port *port = tty->driver_data;
551 struct kobil_private *priv;
552 int result;
553 int dtr = 0;
554 int rts = 0;
555 unsigned char *transfer_buffer;
556 int transfer_buffer_length = 8;
557
558 /* FIXME: locking ? */
559 priv = usb_get_serial_port_data(port);
560 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
561 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
562 /* This device doesn't support ioctl calls */
563 return -EINVAL;
564 }
565
566 /* allocate memory for transfer buffer */
567 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
568 if (!transfer_buffer)
569 return -ENOMEM;
570
571 if (set & TIOCM_RTS)
572 rts = 1;
573 if (set & TIOCM_DTR)
574 dtr = 1;
575 if (clear & TIOCM_RTS)
576 rts = 0;
577 if (clear & TIOCM_DTR)
578 dtr = 0;
579
580 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
581 if (dtr != 0)
582 dbg("%s - port %d Setting DTR",
583 __func__, port->number);
584 else
585 dbg("%s - port %d Clearing DTR",
586 __func__, port->number);
587 result = usb_control_msg(port->serial->dev,
588 usb_rcvctrlpipe(port->serial->dev, 0),
589 SUSBCRequest_SetStatusLinesOrQueues,
590 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
591 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
592 0,
593 transfer_buffer,
594 0,
595 KOBIL_TIMEOUT);
596 } else {
597 if (rts != 0)
598 dbg("%s - port %d Setting RTS",
599 __func__, port->number);
600 else
601 dbg("%s - port %d Clearing RTS",
602 __func__, port->number);
603 result = usb_control_msg(port->serial->dev,
604 usb_rcvctrlpipe(port->serial->dev, 0),
605 SUSBCRequest_SetStatusLinesOrQueues,
606 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
607 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
608 0,
609 transfer_buffer,
610 0,
611 KOBIL_TIMEOUT);
612 }
613 dbg("%s - port %d Send set_status_line URB returns: %i",
614 __func__, port->number, result);
615 kfree(transfer_buffer);
616 return (result < 0) ? result : 0;
617 }
618
619 static void kobil_set_termios(struct tty_struct *tty,
620 struct usb_serial_port *port, struct ktermios *old)
621 {
622 struct kobil_private *priv;
623 int result;
624 unsigned short urb_val = 0;
625 int c_cflag = tty->termios->c_cflag;
626 speed_t speed;
627
628 priv = usb_get_serial_port_data(port);
629 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
630 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
631 /* This device doesn't support ioctl calls */
632 *tty->termios = *old;
633 return;
634 }
635
636 speed = tty_get_baud_rate(tty);
637 switch (speed) {
638 case 1200:
639 urb_val = SUSBCR_SBR_1200;
640 break;
641 default:
642 speed = 9600;
643 case 9600:
644 urb_val = SUSBCR_SBR_9600;
645 break;
646 }
647 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
648 SUSBCR_SPASB_1StopBit;
649 if (c_cflag & PARENB) {
650 if (c_cflag & PARODD)
651 urb_val |= SUSBCR_SPASB_OddParity;
652 else
653 urb_val |= SUSBCR_SPASB_EvenParity;
654 } else
655 urb_val |= SUSBCR_SPASB_NoParity;
656 tty->termios->c_cflag &= ~CMSPAR;
657 tty_encode_baud_rate(tty, speed, speed);
658
659 result = usb_control_msg(port->serial->dev,
660 usb_rcvctrlpipe(port->serial->dev, 0),
661 SUSBCRequest_SetBaudRateParityAndStopBits,
662 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
663 urb_val,
664 0,
665 NULL,
666 0,
667 KOBIL_TIMEOUT
668 );
669 }
670
671 static int kobil_ioctl(struct tty_struct *tty,
672 unsigned int cmd, unsigned long arg)
673 {
674 struct usb_serial_port *port = tty->driver_data;
675 struct kobil_private *priv = usb_get_serial_port_data(port);
676 unsigned char *transfer_buffer;
677 int transfer_buffer_length = 8;
678 int result;
679
680 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
681 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
682 /* This device doesn't support ioctl calls */
683 return -ENOIOCTLCMD;
684
685 switch (cmd) {
686 case TCFLSH:
687 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
688 if (!transfer_buffer)
689 return -ENOBUFS;
690
691 result = usb_control_msg(port->serial->dev,
692 usb_rcvctrlpipe(port->serial->dev, 0),
693 SUSBCRequest_Misc,
694 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
695 SUSBCR_MSC_ResetAllQueues,
696 0,
697 NULL, /* transfer_buffer, */
698 0,
699 KOBIL_TIMEOUT
700 );
701
702 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
703 kfree(transfer_buffer);
704 return (result < 0) ? -EIO: 0;
705 default:
706 return -ENOIOCTLCMD;
707 }
708 }
709
710 static int __init kobil_init(void)
711 {
712 int retval;
713 retval = usb_serial_register(&kobil_device);
714 if (retval)
715 goto failed_usb_serial_register;
716 retval = usb_register(&kobil_driver);
717 if (retval)
718 goto failed_usb_register;
719
720 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
721 DRIVER_DESC "\n");
722
723 return 0;
724 failed_usb_register:
725 usb_serial_deregister(&kobil_device);
726 failed_usb_serial_register:
727 return retval;
728 }
729
730
731 static void __exit kobil_exit(void)
732 {
733 usb_deregister(&kobil_driver);
734 usb_serial_deregister(&kobil_device);
735 }
736
737 module_init(kobil_init);
738 module_exit(kobil_exit);
739
740 MODULE_AUTHOR(DRIVER_AUTHOR);
741 MODULE_DESCRIPTION(DRIVER_DESC);
742 MODULE_LICENSE("GPL");
743
744 module_param(debug, bool, S_IRUGO | S_IWUSR);
745 MODULE_PARM_DESC(debug, "Debug enabled or not");
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