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[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / kobil_sct.c
blobc113a2a0e10c529e198dcd9e6b7de868e27cddba
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, struct file *file,
79 unsigned int cmd, unsigned long arg);
80 static int kobil_tiocmget(struct tty_struct *tty, struct file *file);
81 static int kobil_tiocmset(struct tty_struct *tty, struct file *file,
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_kill_urb(port->write_urb);
349 usb_free_urb(port->write_urb);
350 port->write_urb = NULL;
351 }
352 usb_kill_urb(port->interrupt_in_urb);
353 }
354
355
356 static void kobil_read_int_callback(struct urb *urb)
357 {
358 int result;
359 struct usb_serial_port *port = urb->context;
360 struct tty_struct *tty;
361 unsigned char *data = urb->transfer_buffer;
362 int status = urb->status;
363 /* char *dbg_data; */
364
365 dbg("%s - port %d", __func__, port->number);
366
367 if (status) {
368 dbg("%s - port %d Read int status not zero: %d",
369 __func__, port->number, status);
370 return;
371 }
372
373 tty = tty_port_tty_get(&port->port);
374 if (urb->actual_length) {
375
376 /* BEGIN DEBUG */
377 /*
378 dbg_data = kzalloc((3 * purb->actual_length + 10)
379 * sizeof(char), GFP_KERNEL);
380 if (! dbg_data) {
381 return;
382 }
383 for (i = 0; i < purb->actual_length; i++) {
384 sprintf(dbg_data +3*i, "%02X ", data[i]);
385 }
386 dbg(" <-- %s", dbg_data);
387 kfree(dbg_data);
388 */
389 /* END DEBUG */
390
391 tty_insert_flip_string(tty, data, urb->actual_length);
392 tty_flip_buffer_push(tty);
393 }
394 tty_kref_put(tty);
395 /* someone sets the dev to 0 if the close method has been called */
396 port->interrupt_in_urb->dev = port->serial->dev;
397
398 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
399 dbg("%s - port %d Send read URB returns: %i",
400 __func__, port->number, result);
401 }
402
403
404 static void kobil_write_callback(struct urb *purb)
405 {
406 }
407
408
409 static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
410 const unsigned char *buf, int count)
411 {
412 int length = 0;
413 int result = 0;
414 int todo = 0;
415 struct kobil_private *priv;
416
417 if (count == 0) {
418 dbg("%s - port %d write request of 0 bytes",
419 __func__, port->number);
420 return 0;
421 }
422
423 priv = usb_get_serial_port_data(port);
424
425 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
426 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number);
427 return -ENOMEM;
428 }
429
430 /* Copy data to buffer */
431 memcpy(priv->buf + priv->filled, buf, count);
432 usb_serial_debug_data(debug, &port->dev, __func__, count,
433 priv->buf + priv->filled);
434 priv->filled = priv->filled + count;
435
436 /* only send complete block. TWIN, KAAN SIM and adapter K
437 use the same protocol. */
438 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
439 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
440 /* stop reading (except TWIN and KAAN SIM) */
441 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
442 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
443 usb_kill_urb(port->interrupt_in_urb);
444
445 todo = priv->filled - priv->cur_pos;
446
447 while (todo > 0) {
448 /* max 8 byte in one urb (endpoint size) */
449 length = (todo < 8) ? todo : 8;
450 /* copy data to transfer buffer */
451 memcpy(port->write_urb->transfer_buffer,
452 priv->buf + priv->cur_pos, length);
453 usb_fill_int_urb(port->write_urb,
454 port->serial->dev,
455 usb_sndintpipe(port->serial->dev,
456 priv->write_int_endpoint_address),
457 port->write_urb->transfer_buffer,
458 length,
459 kobil_write_callback,
460 port,
461 8
462 );
463
464 priv->cur_pos = priv->cur_pos + length;
465 result = usb_submit_urb(port->write_urb, GFP_NOIO);
466 dbg("%s - port %d Send write URB returns: %i",
467 __func__, port->number, result);
468 todo = priv->filled - priv->cur_pos;
469
470 if (todo > 0)
471 msleep(24);
472 }
473
474 priv->filled = 0;
475 priv->cur_pos = 0;
476
477 /* someone sets the dev to 0 if the close method
478 has been called */
479 port->interrupt_in_urb->dev = port->serial->dev;
480
481 /* start reading (except TWIN and KAAN SIM) */
482 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
483 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
484 /* someone sets the dev to 0 if the close method has
485 been called */
486 port->interrupt_in_urb->dev = port->serial->dev;
487
488 result = usb_submit_urb(port->interrupt_in_urb,
489 GFP_NOIO);
490 dbg("%s - port %d Send read URB returns: %i",
491 __func__, port->number, result);
492 }
493 }
494 return count;
495 }
496
497
498 static int kobil_write_room(struct tty_struct *tty)
499 {
500 /* dbg("%s - port %d", __func__, port->number); */
501 /* FIXME */
502 return 8;
503 }
504
505
506 static int kobil_tiocmget(struct tty_struct *tty, struct file *file)
507 {
508 struct usb_serial_port *port = tty->driver_data;
509 struct kobil_private *priv;
510 int result;
511 unsigned char *transfer_buffer;
512 int transfer_buffer_length = 8;
513
514 priv = usb_get_serial_port_data(port);
515 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
516 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
517 /* This device doesn't support ioctl calls */
518 return -EINVAL;
519 }
520
521 /* allocate memory for transfer buffer */
522 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
523 if (!transfer_buffer)
524 return -ENOMEM;
525
526 result = usb_control_msg(port->serial->dev,
527 usb_rcvctrlpipe(port->serial->dev, 0),
528 SUSBCRequest_GetStatusLineState,
529 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
530 0,
531 0,
532 transfer_buffer,
533 transfer_buffer_length,
534 KOBIL_TIMEOUT);
535
536 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
537 __func__, port->number, result, transfer_buffer[0]);
538
539 result = 0;
540 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
541 result = TIOCM_DSR;
542 kfree(transfer_buffer);
543 return result;
544 }
545
546 static int kobil_tiocmset(struct tty_struct *tty, struct file *file,
547 unsigned int set, unsigned int clear)
548 {
549 struct usb_serial_port *port = tty->driver_data;
550 struct kobil_private *priv;
551 int result;
552 int dtr = 0;
553 int rts = 0;
554 unsigned char *transfer_buffer;
555 int transfer_buffer_length = 8;
556
557 /* FIXME: locking ? */
558 priv = usb_get_serial_port_data(port);
559 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
560 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
561 /* This device doesn't support ioctl calls */
562 return -EINVAL;
563 }
564
565 /* allocate memory for transfer buffer */
566 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
567 if (!transfer_buffer)
568 return -ENOMEM;
569
570 if (set & TIOCM_RTS)
571 rts = 1;
572 if (set & TIOCM_DTR)
573 dtr = 1;
574 if (clear & TIOCM_RTS)
575 rts = 0;
576 if (clear & TIOCM_DTR)
577 dtr = 0;
578
579 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
580 if (dtr != 0)
581 dbg("%s - port %d Setting DTR",
582 __func__, port->number);
583 else
584 dbg("%s - port %d Clearing DTR",
585 __func__, port->number);
586 result = usb_control_msg(port->serial->dev,
587 usb_rcvctrlpipe(port->serial->dev, 0),
588 SUSBCRequest_SetStatusLinesOrQueues,
589 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
590 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
591 0,
592 transfer_buffer,
593 0,
594 KOBIL_TIMEOUT);
595 } else {
596 if (rts != 0)
597 dbg("%s - port %d Setting RTS",
598 __func__, port->number);
599 else
600 dbg("%s - port %d Clearing RTS",
601 __func__, port->number);
602 result = usb_control_msg(port->serial->dev,
603 usb_rcvctrlpipe(port->serial->dev, 0),
604 SUSBCRequest_SetStatusLinesOrQueues,
605 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
606 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
607 0,
608 transfer_buffer,
609 0,
610 KOBIL_TIMEOUT);
611 }
612 dbg("%s - port %d Send set_status_line URB returns: %i",
613 __func__, port->number, result);
614 kfree(transfer_buffer);
615 return (result < 0) ? result : 0;
616 }
617
618 static void kobil_set_termios(struct tty_struct *tty,
619 struct usb_serial_port *port, struct ktermios *old)
620 {
621 struct kobil_private *priv;
622 int result;
623 unsigned short urb_val = 0;
624 int c_cflag = tty->termios->c_cflag;
625 speed_t speed;
626
627 priv = usb_get_serial_port_data(port);
628 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
629 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
630 /* This device doesn't support ioctl calls */
631 *tty->termios = *old;
632 return;
633 }
634
635 speed = tty_get_baud_rate(tty);
636 switch (speed) {
637 case 1200:
638 urb_val = SUSBCR_SBR_1200;
639 break;
640 default:
641 speed = 9600;
642 case 9600:
643 urb_val = SUSBCR_SBR_9600;
644 break;
645 }
646 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
647 SUSBCR_SPASB_1StopBit;
648 if (c_cflag & PARENB) {
649 if (c_cflag & PARODD)
650 urb_val |= SUSBCR_SPASB_OddParity;
651 else
652 urb_val |= SUSBCR_SPASB_EvenParity;
653 } else
654 urb_val |= SUSBCR_SPASB_NoParity;
655 tty->termios->c_cflag &= ~CMSPAR;
656 tty_encode_baud_rate(tty, speed, speed);
657
658 result = usb_control_msg(port->serial->dev,
659 usb_rcvctrlpipe(port->serial->dev, 0),
660 SUSBCRequest_SetBaudRateParityAndStopBits,
661 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
662 urb_val,
663 0,
664 NULL,
665 0,
666 KOBIL_TIMEOUT
667 );
668 }
669
670 static int kobil_ioctl(struct tty_struct *tty, struct file *file,
671 unsigned int cmd, unsigned long arg)
672 {
673 struct usb_serial_port *port = tty->driver_data;
674 struct kobil_private *priv = usb_get_serial_port_data(port);
675 unsigned char *transfer_buffer;
676 int transfer_buffer_length = 8;
677 int result;
678
679 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
680 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
681 /* This device doesn't support ioctl calls */
682 return -ENOIOCTLCMD;
683
684 switch (cmd) {
685 case TCFLSH:
686 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
687 if (!transfer_buffer)
688 return -ENOBUFS;
689
690 result = usb_control_msg(port->serial->dev,
691 usb_rcvctrlpipe(port->serial->dev, 0),
692 SUSBCRequest_Misc,
693 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
694 SUSBCR_MSC_ResetAllQueues,
695 0,
696 NULL, /* transfer_buffer, */
697 0,
698 KOBIL_TIMEOUT
699 );
700
701 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
702 kfree(transfer_buffer);
703 return (result < 0) ? -EIO: 0;
704 default:
705 return -ENOIOCTLCMD;
706 }
707 }
708
709 static int __init kobil_init(void)
710 {
711 int retval;
712 retval = usb_serial_register(&kobil_device);
713 if (retval)
714 goto failed_usb_serial_register;
715 retval = usb_register(&kobil_driver);
716 if (retval)
717 goto failed_usb_register;
718
719 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
720 DRIVER_DESC "\n");
721
722 return 0;
723 failed_usb_register:
724 usb_serial_deregister(&kobil_device);
725 failed_usb_serial_register:
726 return retval;
727 }
728
729
730 static void __exit kobil_exit(void)
731 {
732 usb_deregister(&kobil_driver);
733 usb_serial_deregister(&kobil_device);
734 }
735
736 module_init(kobil_init);
737 module_exit(kobil_exit);
738
739 MODULE_AUTHOR(DRIVER_AUTHOR);
740 MODULE_DESCRIPTION(DRIVER_DESC);
741 MODULE_LICENSE("GPL");
742
743 module_param(debug, bool, S_IRUGO | S_IWUSR);
744 MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree