projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
USB serial: add dynamic id support to usb-serial core
[linux-block.git] / drivers / usb / serial / kobil_sct.c
CommitLineData
1da177e4
LT		 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
1da177e4
LT		 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 <asm/uaccess.h>
48#include <linux/usb.h>
a969888c 49#include <linux/usb/serial.h>
1da177e4 50#include <linux/ioctl.h>
1da177e4
LT		 51#include "kobil_sct.h"
52
53static 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 */
71static int kobil_startup (struct usb_serial *serial);
72static void kobil_shutdown (struct usb_serial *serial);
73static int kobil_open (struct usb_serial_port *port, struct file *filp);
74static void kobil_close (struct usb_serial_port *port, struct file *filp);
75static int kobil_write (struct usb_serial_port *port,
76 const unsigned char *buf, int count);
77static int kobil_write_room(struct usb_serial_port *port);
78static int kobil_ioctl(struct usb_serial_port *port, struct file *file,
79 unsigned int cmd, unsigned long arg);
80static int kobil_tiocmget(struct usb_serial_port *port, struct file *file);
81static int kobil_tiocmset(struct usb_serial_port *port, struct file *file,
82 unsigned int set, unsigned int clear);
7d12e780
DH		 83static void kobil_read_int_callback( struct urb *urb );
84static void kobil_write_callback( struct urb *purb );
1da177e4
LT		 85
86
87static struct usb_device_id id_table [] = {
88 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
89 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
92 { } /* Terminating entry */
93};
94
95
96MODULE_DEVICE_TABLE (usb, id_table);
97
98static struct usb_driver kobil_driver = {
1da177e4
LT		 99 .name = "kobil",
100 .probe = usb_serial_probe,
101 .disconnect = usb_serial_disconnect,
102 .id_table = id_table,
ba9dc657 103 .no_dynamic_id = 1,
1da177e4
LT		 104};
105
106
ea65370d 107static struct usb_serial_driver kobil_device = {
18fcac35
GKH		 108 .driver = {
109 .owner = THIS_MODULE,
269bda1c 110 .name = "kobil",
18fcac35 111 },
269bda1c 112 .description = "KOBIL USB smart card terminal",
1da177e4
LT		 113 .id_table = id_table,
114 .num_interrupt_in = NUM_DONT_CARE,
115 .num_bulk_in = 0,
116 .num_bulk_out = 0,
117 .num_ports = 1,
118 .attach = kobil_startup,
119 .shutdown = kobil_shutdown,
120 .ioctl = kobil_ioctl,
121 .tiocmget = kobil_tiocmget,
122 .tiocmset = kobil_tiocmset,
123 .open = kobil_open,
124 .close = kobil_close,
125 .write = kobil_write,
126 .write_room = kobil_write_room,
127 .read_int_callback = kobil_read_int_callback,
128};
129
130
131struct kobil_private {
132 int write_int_endpoint_address;
133 int read_int_endpoint_address;
134 unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send
135 int filled; // index of the last char in buf
136 int cur_pos; // index of the next char to send in buf
137 __u16 device_type;
138 int line_state;
606d099c 139 struct ktermios internal_termios;
1da177e4
LT		 140};
141
142
143static 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
158 priv->filled = 0;
159 priv->cur_pos = 0;
160 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
161 priv->line_state = 0;
162
163 switch (priv->device_type){
164 case KOBIL_ADAPTER_B_PRODUCT_ID:
165 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
166 break;
167 case KOBIL_ADAPTER_K_PRODUCT_ID:
168 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
169 break;
170 case KOBIL_USBTWIN_PRODUCT_ID:
171 printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
172 break;
173 case KOBIL_KAAN_SIM_PRODUCT_ID:
174 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
175 break;
176 }
177 usb_set_serial_port_data(serial->port[0], priv);
178
179 // search for the necessary endpoints
180 pdev = serial->dev;
181 actconfig = pdev->actconfig;
182 interface = actconfig->interface[0];
183 altsetting = interface->cur_altsetting;
184 endpoint = altsetting->endpoint;
185
186 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
187 endpoint = &altsetting->endpoint[i];
4f1f1ddd 188 if (usb_endpoint_is_int_out(&endpoint->desc)) {
1da177e4
LT		 189 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress);
190 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress;
191 }
4f1f1ddd 192 if (usb_endpoint_is_int_in(&endpoint->desc)) {
1da177e4
LT		 193 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress);
194 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress;
195 }
196 }
197 return 0;
198}
199
200
201static void kobil_shutdown (struct usb_serial *serial)
202{
203 int i;
204 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number);
205
206 for (i=0; i < serial->num_ports; ++i) {
207 while (serial->port[i]->open_count > 0) {
208 kobil_close (serial->port[i], NULL);
209 }
210 kfree(usb_get_serial_port_data(serial->port[i]));
211 usb_set_serial_port_data(serial->port[i], NULL);
212 }
213}
214
215
216static int kobil_open (struct usb_serial_port *port, struct file *filp)
217{
218 int i, result = 0;
219 struct kobil_private *priv;
220 unsigned char *transfer_buffer;
221 int transfer_buffer_length = 8;
222 int write_urb_transfer_buffer_length = 8;
223
224 dbg("%s - port %d", __FUNCTION__, port->number);
225 priv = usb_get_serial_port_data(port);
226 priv->line_state = 0;
227
228 // someone sets the dev to 0 if the close method has been called
229 port->interrupt_in_urb->dev = port->serial->dev;
230
231
232 /* force low_latency on so that our tty_push actually forces
233 * the data through, otherwise it is scheduled, and with high
234 * data rates (like with OHCI) data can get lost.
235 */
236 port->tty->low_latency = 1;
237
238 // without this, every push_tty_char is echoed :-(
239 port->tty->termios->c_lflag = 0;
240 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
241 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
242 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D)
243
244 // set up internal termios structure
245 priv->internal_termios.c_iflag = port->tty->termios->c_iflag;
246 priv->internal_termios.c_oflag = port->tty->termios->c_oflag;
247 priv->internal_termios.c_cflag = port->tty->termios->c_cflag;
248 priv->internal_termios.c_lflag = port->tty->termios->c_lflag;
249
250 for (i=0; i<NCCS; i++) {
251 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i];
252 }
253
254 // allocate memory for transfer buffer
80b6ca48 255 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 256 if (! transfer_buffer) {
257 return -ENOMEM;
1da177e4
LT		 258 }
259
260 // allocate write_urb
261 if (!port->write_urb) {
262 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number);
263 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
264 if (!port->write_urb) {
265 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number);
266 kfree(transfer_buffer);
267 return -ENOMEM;
268 }
269 }
270
271 // allocate memory for write_urb transfer buffer
5cbded58 272 port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 273 if (! port->write_urb->transfer_buffer) {
274 kfree(transfer_buffer);
275 usb_free_urb(port->write_urb);
276 port->write_urb = NULL;
277 return -ENOMEM;
278 }
279
280 // get hardware version
281 result = usb_control_msg( port->serial->dev,
282 usb_rcvctrlpipe(port->serial->dev, 0 ),
283 SUSBCRequest_GetMisc,
284 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
285 SUSBCR_MSC_GetHWVersion,
286 0,
287 transfer_buffer,
288 transfer_buffer_length,
289 KOBIL_TIMEOUT
290 );
291 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result);
292 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
293
294 // get firmware version
295 result = usb_control_msg( port->serial->dev,
296 usb_rcvctrlpipe(port->serial->dev, 0 ),
297 SUSBCRequest_GetMisc,
298 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
299 SUSBCR_MSC_GetFWVersion,
300 0,
301 transfer_buffer,
302 transfer_buffer_length,
303 KOBIL_TIMEOUT
304 );
305 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result);
306 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
307
308 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
309 // Setting Baudrate, Parity and Stopbits
310 result = usb_control_msg( port->serial->dev,
311 usb_rcvctrlpipe(port->serial->dev, 0 ),
312 SUSBCRequest_SetBaudRateParityAndStopBits,
313 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
314 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit,
315 0,
316 transfer_buffer,
317 0,
318 KOBIL_TIMEOUT
319 );
320 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
321
322 // reset all queues
323 result = usb_control_msg( port->serial->dev,
324 usb_rcvctrlpipe(port->serial->dev, 0 ),
325 SUSBCRequest_Misc,
326 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
327 SUSBCR_MSC_ResetAllQueues,
328 0,
329 transfer_buffer,
330 0,
331 KOBIL_TIMEOUT
332 );
333 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result);
334 }
335 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
336 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
337 // start reading (Adapter B 'cause PNP string)
338 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC );
339 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
340 }
341
342 kfree(transfer_buffer);
343 return 0;
344}
345
346
347static void kobil_close (struct usb_serial_port *port, struct file *filp)
348{
349 dbg("%s - port %d", __FUNCTION__, port->number);
350
351 if (port->write_urb) {
352 usb_kill_urb(port->write_urb);
353 usb_free_urb( port->write_urb );
354 port->write_urb = NULL;
355 }
5505c226 356 usb_kill_urb(port->interrupt_in_urb);
1da177e4
LT		 357}
358
359
7d12e780 360static void kobil_read_int_callback( struct urb *purb)
1da177e4 361{
1da177e4
LT		 362 int result;
363 struct usb_serial_port *port = (struct usb_serial_port *) purb->context;
364 struct tty_struct *tty;
365 unsigned char *data = purb->transfer_buffer;
366// char *dbg_data;
367
368 dbg("%s - port %d", __FUNCTION__, port->number);
369
370 if (purb->status) {
371 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status);
372 return;
373 }
374
375 tty = port->tty;
376 if (purb->actual_length) {
377
378 // BEGIN DEBUG
379 /*
80b6ca48 380 dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
1da177e4
LT		 381 if (! dbg_data) {
382 return;
383 }
1da177e4
LT		 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
33f0f88f
AC		 392 tty_buffer_request_room(tty, purb->actual_length);
393 tty_insert_flip_string(tty, data, purb->actual_length);
1da177e4
LT		 394 tty_flip_buffer_push(tty);
395 }
396
397 // someone sets the dev to 0 if the close method has been called
398 port->interrupt_in_urb->dev = port->serial->dev;
399
400 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC );
401 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
402}
403
404
7d12e780 405static void kobil_write_callback( struct urb *purb )
1da177e4
LT		 406{
407}
408
409
410static int kobil_write (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", __FUNCTION__, 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", __FUNCTION__, port->number);
427 return -ENOMEM;
428 }
429
430 // Copy data to buffer
431 memcpy (priv->buf + priv->filled, buf, count);
432
433 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled);
434
435 priv->filled = priv->filled + count;
436
437
438 // only send complete block. TWIN, KAAN SIM and adapter K 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
442 // stop reading (except TWIN and KAAN SIM)
443 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (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, priv->buf + priv->cur_pos, length );
453 usb_fill_int_urb( port->write_urb,
454 port->serial->dev,
455 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address),
456 port->write_urb->transfer_buffer,
457 length,
458 kobil_write_callback,
459 port,
460 8
461 );
462
463 priv->cur_pos = priv->cur_pos + length;
464 result = usb_submit_urb( port->write_urb, GFP_NOIO );
465 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result);
466 todo = priv->filled - priv->cur_pos;
467
468 if (todo > 0) {
469 msleep(24);
470 }
471
472 } // end while
473
474 priv->filled = 0;
475 priv->cur_pos = 0;
476
477 // someone sets the dev to 0 if the close method has been called
478 port->interrupt_in_urb->dev = port->serial->dev;
479
480 // start reading (except TWIN and KAAN SIM)
481 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
482 // someone sets the dev to 0 if the close method has been called
483 port->interrupt_in_urb->dev = port->serial->dev;
484
485 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO );
486 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
487 }
488 }
489 return count;
490}
491
492
493static int kobil_write_room (struct usb_serial_port *port)
494{
495 //dbg("%s - port %d", __FUNCTION__, port->number);
496 return 8;
497}
498
499
500static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
501{
502 struct kobil_private * priv;
503 int result;
504 unsigned char *transfer_buffer;
505 int transfer_buffer_length = 8;
506
507 priv = usb_get_serial_port_data(port);
508 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
509 // This device doesn't support ioctl calls
510 return -EINVAL;
511 }
512
513 // allocate memory for transfer buffer
80b6ca48 514 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 515 if (!transfer_buffer) {
516 return -ENOMEM;
517 }
1da177e4
LT		 518
519 result = usb_control_msg( port->serial->dev,
520 usb_rcvctrlpipe(port->serial->dev, 0 ),
521 SUSBCRequest_GetStatusLineState,
522 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
523 0,
524 0,
525 transfer_buffer,
526 transfer_buffer_length,
527 KOBIL_TIMEOUT);
528
529 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
530 __FUNCTION__, port->number, result, transfer_buffer[0]);
531
532 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
533 priv->line_state |= TIOCM_DSR;
534 } else {
535 priv->line_state &= ~TIOCM_DSR;
536 }
537
538 kfree(transfer_buffer);
539 return priv->line_state;
540}
541
542static int kobil_tiocmset(struct usb_serial_port *port, struct file *file,
543 unsigned int set, unsigned int clear)
544{
545 struct kobil_private * priv;
546 int result;
547 int dtr = 0;
548 int rts = 0;
549 unsigned char *transfer_buffer;
550 int transfer_buffer_length = 8;
551
552 priv = usb_get_serial_port_data(port);
553 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
554 // This device doesn't support ioctl calls
555 return -EINVAL;
556 }
557
558 // allocate memory for transfer buffer
80b6ca48 559 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 560 if (! transfer_buffer) {
561 return -ENOMEM;
562 }
1da177e4
LT		 563
564 if (set & TIOCM_RTS)
565 rts = 1;
566 if (set & TIOCM_DTR)
567 dtr = 1;
568 if (clear & TIOCM_RTS)
569 rts = 0;
570 if (clear & TIOCM_DTR)
571 dtr = 0;
572
573 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
574 if (dtr != 0)
575 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number);
576 else
577 dbg("%s - port %d Clearing DTR", __FUNCTION__, 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 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
583 0,
584 transfer_buffer,
585 0,
586 KOBIL_TIMEOUT);
587 } else {
588 if (rts != 0)
589 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number);
590 else
591 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number);
592 result = usb_control_msg( port->serial->dev,
593 usb_rcvctrlpipe(port->serial->dev, 0 ),
594 SUSBCRequest_SetStatusLinesOrQueues,
595 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
596 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
597 0,
598 transfer_buffer,
599 0,
600 KOBIL_TIMEOUT);
601 }
602 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result);
603 kfree(transfer_buffer);
604 return (result < 0) ? result : 0;
605}
606
607
608static int kobil_ioctl(struct usb_serial_port *port, struct file *file,
609 unsigned int cmd, unsigned long arg)
610{
611 struct kobil_private * priv;
612 int result;
613 unsigned short urb_val = 0;
614 unsigned char *transfer_buffer;
615 int transfer_buffer_length = 8;
616 char *settings;
617 void __user *user_arg = (void __user *)arg;
618
619 priv = usb_get_serial_port_data(port);
620 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
621 // This device doesn't support ioctl calls
622 return 0;
623 }
624
625 switch (cmd) {
626 case TCGETS: // 0x5401
606d099c 627 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct ktermios))) {
1da177e4
LT		 628 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number);
629 return -EFAULT;
630 }
606d099c 631 if (kernel_termios_to_user_termios((struct ktermios __user *)arg,
1da177e4
LT		 632 &priv->internal_termios))
633 return -EFAULT;
634 return 0;
635
636 case TCSETS: // 0x5402
637 if (!(port->tty->termios)) {
638 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number);
639 return -ENOTTY;
640 }
606d099c 641 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct ktermios))) {
1da177e4
LT		 642 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number);
643 return -EFAULT;
644 }
645 if (user_termios_to_kernel_termios(&priv->internal_termios,
606d099c 646 (struct ktermios __user *)arg))
1da177e4
LT		 647 return -EFAULT;
648
80b6ca48 649 settings = kzalloc(50, GFP_KERNEL);
1da177e4
LT		 650 if (! settings) {
651 return -ENOBUFS;
652 }
1da177e4
LT		 653
654 switch (priv->internal_termios.c_cflag & CBAUD) {
655 case B1200:
656 urb_val = SUSBCR_SBR_1200;
657 strcat(settings, "1200 ");
658 break;
659 case B9600:
660 default:
661 urb_val = SUSBCR_SBR_9600;
662 strcat(settings, "9600 ");
663 break;
664 }
665
666 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
667 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit ");
668
669 if (priv->internal_termios.c_cflag & PARENB) {
670 if (priv->internal_termios.c_cflag & PARODD) {
671 urb_val |= SUSBCR_SPASB_OddParity;
672 strcat(settings, "Odd Parity");
673 } else {
674 urb_val |= SUSBCR_SPASB_EvenParity;
675 strcat(settings, "Even Parity");
676 }
677 } else {
678 urb_val |= SUSBCR_SPASB_NoParity;
679 strcat(settings, "No Parity");
680 }
681 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings );
682
683 result = usb_control_msg( port->serial->dev,
684 usb_rcvctrlpipe(port->serial->dev, 0 ),
685 SUSBCRequest_SetBaudRateParityAndStopBits,
686 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
687 urb_val,
688 0,
689 settings,
690 0,
691 KOBIL_TIMEOUT
692 );
693
694 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
695 kfree(settings);
696 return 0;
697
698 case TCFLSH: // 0x540B
5cbded58 699 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 700 if (! transfer_buffer) {
701 return -ENOBUFS;
702 }
703
704 result = usb_control_msg( port->serial->dev,
705 usb_rcvctrlpipe(port->serial->dev, 0 ),
706 SUSBCRequest_Misc,
707 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
708 SUSBCR_MSC_ResetAllQueues,
709 0,
710 NULL,//transfer_buffer,
711 0,
712 KOBIL_TIMEOUT
713 );
714
715 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result);
716
717 kfree(transfer_buffer);
718 return ((result < 0) ? -EFAULT : 0);
719
720 }
721 return -ENOIOCTLCMD;
722}
723
724
725static int __init kobil_init (void)
726{
727 int retval;
728 retval = usb_serial_register(&kobil_device);
729 if (retval)
730 goto failed_usb_serial_register;
731 retval = usb_register(&kobil_driver);
732 if (retval)
733 goto failed_usb_register;
734
735 info(DRIVER_VERSION " " DRIVER_AUTHOR);
736 info(DRIVER_DESC);
737
738 return 0;
739failed_usb_register:
740 usb_serial_deregister(&kobil_device);
741failed_usb_serial_register:
742 return retval;
743}
744
745
746static void __exit kobil_exit (void)
747{
748 usb_deregister (&kobil_driver);
749 usb_serial_deregister (&kobil_device);
750}
751
752module_init(kobil_init);
753module_exit(kobil_exit);
754
755MODULE_AUTHOR( DRIVER_AUTHOR );
756MODULE_DESCRIPTION( DRIVER_DESC );
757MODULE_LICENSE( "GPL" );
758
759module_param(debug, bool, S_IRUGO | S_IWUSR);
760MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux 6.x block layer and io_uring tree(s)