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[PATCH] USB Serial: move old changelog comments out of source code
[deliverable/linux.git] / drivers / usb / serial / kobil_sct.c
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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
38#include <linux/config.h>
39#include <linux/kernel.h>
40#include <linux/errno.h>
41#include <linux/init.h>
42#include <linux/slab.h>
43#include <linux/tty.h>
44#include <linux/tty_driver.h>
45#include <linux/tty_flip.h>
46#include <linux/module.h>
47#include <linux/spinlock.h>
48#include <asm/uaccess.h>
49#include <linux/usb.h>
50#include <linux/ioctl.h>
51#include "usb-serial.h"
52#include "kobil_sct.h"
53
54static int debug;
55
56/* Version Information */
57#define DRIVER_VERSION "21/05/2004"
58#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
59#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
60
61#define KOBIL_VENDOR_ID 0x0D46
62#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
63#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
64#define KOBIL_USBTWIN_PRODUCT_ID 0x0078
65#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
66
67#define KOBIL_TIMEOUT 500
68#define KOBIL_BUF_LENGTH 300
69
70
71/* Function prototypes */
72static int kobil_startup (struct usb_serial *serial);
73static void kobil_shutdown (struct usb_serial *serial);
74static int kobil_open (struct usb_serial_port *port, struct file *filp);
75static void kobil_close (struct usb_serial_port *port, struct file *filp);
76static int kobil_write (struct usb_serial_port *port,
77 const unsigned char *buf, int count);
78static int kobil_write_room(struct usb_serial_port *port);
79static int kobil_ioctl(struct usb_serial_port *port, struct file *file,
80 unsigned int cmd, unsigned long arg);
81static int kobil_tiocmget(struct usb_serial_port *port, struct file *file);
82static int kobil_tiocmset(struct usb_serial_port *port, struct file *file,
83 unsigned int set, unsigned int clear);
84static void kobil_read_int_callback( struct urb *urb, struct pt_regs *regs );
85static void kobil_write_callback( struct urb *purb, struct pt_regs *regs );
86
87
88static struct usb_device_id id_table [] = {
89 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
90 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
91 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
92 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
93 { } /* Terminating entry */
94};
95
96
97MODULE_DEVICE_TABLE (usb, id_table);
98
99static struct usb_driver kobil_driver = {
100 .owner = THIS_MODULE,
101 .name = "kobil",
102 .probe = usb_serial_probe,
103 .disconnect = usb_serial_disconnect,
104 .id_table = id_table,
105};
106
107
ea65370d 108static struct usb_serial_driver kobil_device = {
18fcac35
GKH		 109 .driver = {
110 .owner = THIS_MODULE,
111 },
1da177e4
LT		 112 .name = "KOBIL USB smart card terminal",
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;
139 struct termios internal_termios;
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];
188 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
189 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
190 dbg("%s Found interrupt out endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress);
191 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress;
192 }
193 if (((endpoint->desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
194 ((endpoint->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
195 dbg("%s Found interrupt in endpoint. Address: %d", __FUNCTION__, endpoint->desc.bEndpointAddress);
196 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress;
197 }
198 }
199 return 0;
200}
201
202
203static void kobil_shutdown (struct usb_serial *serial)
204{
205 int i;
206 dbg("%s - port %d", __FUNCTION__, serial->port[0]->number);
207
208 for (i=0; i < serial->num_ports; ++i) {
209 while (serial->port[i]->open_count > 0) {
210 kobil_close (serial->port[i], NULL);
211 }
212 kfree(usb_get_serial_port_data(serial->port[i]));
213 usb_set_serial_port_data(serial->port[i], NULL);
214 }
215}
216
217
218static int kobil_open (struct usb_serial_port *port, struct file *filp)
219{
220 int i, result = 0;
221 struct kobil_private *priv;
222 unsigned char *transfer_buffer;
223 int transfer_buffer_length = 8;
224 int write_urb_transfer_buffer_length = 8;
225
226 dbg("%s - port %d", __FUNCTION__, port->number);
227 priv = usb_get_serial_port_data(port);
228 priv->line_state = 0;
229
230 // someone sets the dev to 0 if the close method has been called
231 port->interrupt_in_urb->dev = port->serial->dev;
232
233
234 /* force low_latency on so that our tty_push actually forces
235 * the data through, otherwise it is scheduled, and with high
236 * data rates (like with OHCI) data can get lost.
237 */
238 port->tty->low_latency = 1;
239
240 // without this, every push_tty_char is echoed :-(
241 port->tty->termios->c_lflag = 0;
242 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
243 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
244 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D)
245
246 // set up internal termios structure
247 priv->internal_termios.c_iflag = port->tty->termios->c_iflag;
248 priv->internal_termios.c_oflag = port->tty->termios->c_oflag;
249 priv->internal_termios.c_cflag = port->tty->termios->c_cflag;
250 priv->internal_termios.c_lflag = port->tty->termios->c_lflag;
251
252 for (i=0; i<NCCS; i++) {
253 priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i];
254 }
255
256 // allocate memory for transfer buffer
257 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
258 if (! transfer_buffer) {
259 return -ENOMEM;
260 } else {
261 memset(transfer_buffer, 0, transfer_buffer_length);
262 }
263
264 // allocate write_urb
265 if (!port->write_urb) {
266 dbg("%s - port %d Allocating port->write_urb", __FUNCTION__, port->number);
267 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
268 if (!port->write_urb) {
269 dbg("%s - port %d usb_alloc_urb failed", __FUNCTION__, port->number);
270 kfree(transfer_buffer);
271 return -ENOMEM;
272 }
273 }
274
275 // allocate memory for write_urb transfer buffer
276 port->write_urb->transfer_buffer = (unsigned char *) kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
277 if (! port->write_urb->transfer_buffer) {
278 kfree(transfer_buffer);
279 usb_free_urb(port->write_urb);
280 port->write_urb = NULL;
281 return -ENOMEM;
282 }
283
284 // get hardware version
285 result = usb_control_msg( port->serial->dev,
286 usb_rcvctrlpipe(port->serial->dev, 0 ),
287 SUSBCRequest_GetMisc,
288 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
289 SUSBCR_MSC_GetHWVersion,
290 0,
291 transfer_buffer,
292 transfer_buffer_length,
293 KOBIL_TIMEOUT
294 );
295 dbg("%s - port %d Send get_HW_version URB returns: %i", __FUNCTION__, port->number, result);
296 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
297
298 // get firmware version
299 result = usb_control_msg( port->serial->dev,
300 usb_rcvctrlpipe(port->serial->dev, 0 ),
301 SUSBCRequest_GetMisc,
302 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
303 SUSBCR_MSC_GetFWVersion,
304 0,
305 transfer_buffer,
306 transfer_buffer_length,
307 KOBIL_TIMEOUT
308 );
309 dbg("%s - port %d Send get_FW_version URB returns: %i", __FUNCTION__, port->number, result);
310 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
311
312 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
313 // Setting Baudrate, Parity and Stopbits
314 result = usb_control_msg( port->serial->dev,
315 usb_rcvctrlpipe(port->serial->dev, 0 ),
316 SUSBCRequest_SetBaudRateParityAndStopBits,
317 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
318 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit,
319 0,
320 transfer_buffer,
321 0,
322 KOBIL_TIMEOUT
323 );
324 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
325
326 // reset all queues
327 result = usb_control_msg( port->serial->dev,
328 usb_rcvctrlpipe(port->serial->dev, 0 ),
329 SUSBCRequest_Misc,
330 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
331 SUSBCR_MSC_ResetAllQueues,
332 0,
333 transfer_buffer,
334 0,
335 KOBIL_TIMEOUT
336 );
337 dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result);
338 }
339 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
340 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
341 // start reading (Adapter B 'cause PNP string)
342 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC );
343 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
344 }
345
346 kfree(transfer_buffer);
347 return 0;
348}
349
350
351static void kobil_close (struct usb_serial_port *port, struct file *filp)
352{
353 dbg("%s - port %d", __FUNCTION__, port->number);
354
355 if (port->write_urb) {
356 usb_kill_urb(port->write_urb);
357 usb_free_urb( port->write_urb );
358 port->write_urb = NULL;
359 }
360 if (port->interrupt_in_urb)
361 usb_kill_urb(port->interrupt_in_urb);
362}
363
364
365static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs)
366{
367 int i;
368 int result;
369 struct usb_serial_port *port = (struct usb_serial_port *) purb->context;
370 struct tty_struct *tty;
371 unsigned char *data = purb->transfer_buffer;
372// char *dbg_data;
373
374 dbg("%s - port %d", __FUNCTION__, port->number);
375
376 if (purb->status) {
377 dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status);
378 return;
379 }
380
381 tty = port->tty;
382 if (purb->actual_length) {
383
384 // BEGIN DEBUG
385 /*
386 dbg_data = (unsigned char *) kmalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
387 if (! dbg_data) {
388 return;
389 }
390 memset(dbg_data, 0, (3 * purb->actual_length + 10));
391 for (i = 0; i < purb->actual_length; i++) {
392 sprintf(dbg_data +3*i, "%02X ", data[i]);
393 }
394 dbg(" <-- %s", dbg_data );
395 kfree(dbg_data);
396 */
397 // END DEBUG
398
399 for (i = 0; i < purb->actual_length; ++i) {
400 // if we insert more than TTY_FLIPBUF_SIZE characters, we drop them.
401 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
402 tty_flip_buffer_push(tty);
403 }
404 // this doesn't actually push the data through unless tty->low_latency is set
405 tty_insert_flip_char(tty, data[i], 0);
406 }
407 tty_flip_buffer_push(tty);
408 }
409
410 // someone sets the dev to 0 if the close method has been called
411 port->interrupt_in_urb->dev = port->serial->dev;
412
413 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC );
414 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
415}
416
417
418static void kobil_write_callback( struct urb *purb, struct pt_regs *regs )
419{
420}
421
422
423static int kobil_write (struct usb_serial_port *port,
424 const unsigned char *buf, int count)
425{
426 int length = 0;
427 int result = 0;
428 int todo = 0;
429 struct kobil_private * priv;
430
431 if (count == 0) {
432 dbg("%s - port %d write request of 0 bytes", __FUNCTION__, port->number);
433 return 0;
434 }
435
436 priv = usb_get_serial_port_data(port);
437
438 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
439 dbg("%s - port %d Error: write request bigger than buffer size", __FUNCTION__, port->number);
440 return -ENOMEM;
441 }
442
443 // Copy data to buffer
444 memcpy (priv->buf + priv->filled, buf, count);
445
446 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, priv->buf + priv->filled);
447
448 priv->filled = priv->filled + count;
449
450
451 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol.
452 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
453 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) {
454
455 // stop reading (except TWIN and KAAN SIM)
456 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) )
457 usb_kill_urb(port->interrupt_in_urb);
458
459 todo = priv->filled - priv->cur_pos;
460
461 while(todo > 0) {
462 // max 8 byte in one urb (endpoint size)
463 length = (todo < 8) ? todo : 8;
464 // copy data to transfer buffer
465 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length );
466 usb_fill_int_urb( port->write_urb,
467 port->serial->dev,
468 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address),
469 port->write_urb->transfer_buffer,
470 length,
471 kobil_write_callback,
472 port,
473 8
474 );
475
476 priv->cur_pos = priv->cur_pos + length;
477 result = usb_submit_urb( port->write_urb, GFP_NOIO );
478 dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result);
479 todo = priv->filled - priv->cur_pos;
480
481 if (todo > 0) {
482 msleep(24);
483 }
484
485 } // end while
486
487 priv->filled = 0;
488 priv->cur_pos = 0;
489
490 // someone sets the dev to 0 if the close method has been called
491 port->interrupt_in_urb->dev = port->serial->dev;
492
493 // start reading (except TWIN and KAAN SIM)
494 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
495 // someone sets the dev to 0 if the close method has been called
496 port->interrupt_in_urb->dev = port->serial->dev;
497
498 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO );
499 dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
500 }
501 }
502 return count;
503}
504
505
506static int kobil_write_room (struct usb_serial_port *port)
507{
508 //dbg("%s - port %d", __FUNCTION__, port->number);
509 return 8;
510}
511
512
513static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
514{
515 struct kobil_private * priv;
516 int result;
517 unsigned char *transfer_buffer;
518 int transfer_buffer_length = 8;
519
520 priv = usb_get_serial_port_data(port);
521 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
522 // This device doesn't support ioctl calls
523 return -EINVAL;
524 }
525
526 // allocate memory for transfer buffer
527 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
528 if (!transfer_buffer) {
529 return -ENOMEM;
530 }
531 memset(transfer_buffer, 0, transfer_buffer_length);
532
533 result = usb_control_msg( port->serial->dev,
534 usb_rcvctrlpipe(port->serial->dev, 0 ),
535 SUSBCRequest_GetStatusLineState,
536 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
537 0,
538 0,
539 transfer_buffer,
540 transfer_buffer_length,
541 KOBIL_TIMEOUT);
542
543 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
544 __FUNCTION__, port->number, result, transfer_buffer[0]);
545
546 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
547 priv->line_state |= TIOCM_DSR;
548 } else {
549 priv->line_state &= ~TIOCM_DSR;
550 }
551
552 kfree(transfer_buffer);
553 return priv->line_state;
554}
555
556static int kobil_tiocmset(struct usb_serial_port *port, struct file *file,
557 unsigned int set, unsigned int clear)
558{
559 struct kobil_private * priv;
560 int result;
561 int dtr = 0;
562 int rts = 0;
563 unsigned char *transfer_buffer;
564 int transfer_buffer_length = 8;
565
566 priv = usb_get_serial_port_data(port);
567 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
568 // This device doesn't support ioctl calls
569 return -EINVAL;
570 }
571
572 // allocate memory for transfer buffer
573 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
574 if (! transfer_buffer) {
575 return -ENOMEM;
576 }
577 memset(transfer_buffer, 0, transfer_buffer_length);
578
579 if (set & TIOCM_RTS)
580 rts = 1;
581 if (set & TIOCM_DTR)
582 dtr = 1;
583 if (clear & TIOCM_RTS)
584 rts = 0;
585 if (clear & TIOCM_DTR)
586 dtr = 0;
587
588 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
589 if (dtr != 0)
590 dbg("%s - port %d Setting DTR", __FUNCTION__, port->number);
591 else
592 dbg("%s - port %d Clearing DTR", __FUNCTION__, port->number);
593 result = usb_control_msg( port->serial->dev,
594 usb_rcvctrlpipe(port->serial->dev, 0 ),
595 SUSBCRequest_SetStatusLinesOrQueues,
596 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
597 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
598 0,
599 transfer_buffer,
600 0,
601 KOBIL_TIMEOUT);
602 } else {
603 if (rts != 0)
604 dbg("%s - port %d Setting RTS", __FUNCTION__, port->number);
605 else
606 dbg("%s - port %d Clearing RTS", __FUNCTION__, port->number);
607 result = usb_control_msg( port->serial->dev,
608 usb_rcvctrlpipe(port->serial->dev, 0 ),
609 SUSBCRequest_SetStatusLinesOrQueues,
610 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
611 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
612 0,
613 transfer_buffer,
614 0,
615 KOBIL_TIMEOUT);
616 }
617 dbg("%s - port %d Send set_status_line URB returns: %i", __FUNCTION__, port->number, result);
618 kfree(transfer_buffer);
619 return (result < 0) ? result : 0;
620}
621
622
623static int kobil_ioctl(struct usb_serial_port *port, struct file *file,
624 unsigned int cmd, unsigned long arg)
625{
626 struct kobil_private * priv;
627 int result;
628 unsigned short urb_val = 0;
629 unsigned char *transfer_buffer;
630 int transfer_buffer_length = 8;
631 char *settings;
632 void __user *user_arg = (void __user *)arg;
633
634 priv = usb_get_serial_port_data(port);
635 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
636 // This device doesn't support ioctl calls
637 return 0;
638 }
639
640 switch (cmd) {
641 case TCGETS: // 0x5401
642 if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct termios))) {
643 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number);
644 return -EFAULT;
645 }
646 if (kernel_termios_to_user_termios((struct termios __user *)arg,
647 &priv->internal_termios))
648 return -EFAULT;
649 return 0;
650
651 case TCSETS: // 0x5402
652 if (!(port->tty->termios)) {
653 dbg("%s - port %d Error: port->tty->termios is NULL", __FUNCTION__, port->number);
654 return -ENOTTY;
655 }
656 if (!access_ok(VERIFY_READ, user_arg, sizeof(struct termios))) {
657 dbg("%s - port %d Error in access_ok", __FUNCTION__, port->number);
658 return -EFAULT;
659 }
660 if (user_termios_to_kernel_termios(&priv->internal_termios,
661 (struct termios __user *)arg))
662 return -EFAULT;
663
664 settings = (unsigned char *) kmalloc(50, GFP_KERNEL);
665 if (! settings) {
666 return -ENOBUFS;
667 }
668 memset(settings, 0, 50);
669
670 switch (priv->internal_termios.c_cflag & CBAUD) {
671 case B1200:
672 urb_val = SUSBCR_SBR_1200;
673 strcat(settings, "1200 ");
674 break;
675 case B9600:
676 default:
677 urb_val = SUSBCR_SBR_9600;
678 strcat(settings, "9600 ");
679 break;
680 }
681
682 urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
683 strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 StopBits " : "1 StopBit ");
684
685 if (priv->internal_termios.c_cflag & PARENB) {
686 if (priv->internal_termios.c_cflag & PARODD) {
687 urb_val |= SUSBCR_SPASB_OddParity;
688 strcat(settings, "Odd Parity");
689 } else {
690 urb_val |= SUSBCR_SPASB_EvenParity;
691 strcat(settings, "Even Parity");
692 }
693 } else {
694 urb_val |= SUSBCR_SPASB_NoParity;
695 strcat(settings, "No Parity");
696 }
697 dbg("%s - port %d setting port to: %s", __FUNCTION__, port->number, settings );
698
699 result = usb_control_msg( port->serial->dev,
700 usb_rcvctrlpipe(port->serial->dev, 0 ),
701 SUSBCRequest_SetBaudRateParityAndStopBits,
702 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
703 urb_val,
704 0,
705 settings,
706 0,
707 KOBIL_TIMEOUT
708 );
709
710 dbg("%s - port %d Send set_baudrate URB returns: %i", __FUNCTION__, port->number, result);
711 kfree(settings);
712 return 0;
713
714 case TCFLSH: // 0x540B
715 transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL);
716 if (! transfer_buffer) {
717 return -ENOBUFS;
718 }
719
720 result = usb_control_msg( port->serial->dev,
721 usb_rcvctrlpipe(port->serial->dev, 0 ),
722 SUSBCRequest_Misc,
723 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
724 SUSBCR_MSC_ResetAllQueues,
725 0,
726 NULL,//transfer_buffer,
727 0,
728 KOBIL_TIMEOUT
729 );
730
731 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __FUNCTION__, port->number, result);
732
733 kfree(transfer_buffer);
734 return ((result < 0) ? -EFAULT : 0);
735
736 }
737 return -ENOIOCTLCMD;
738}
739
740
741static int __init kobil_init (void)
742{
743 int retval;
744 retval = usb_serial_register(&kobil_device);
745 if (retval)
746 goto failed_usb_serial_register;
747 retval = usb_register(&kobil_driver);
748 if (retval)
749 goto failed_usb_register;
750
751 info(DRIVER_VERSION " " DRIVER_AUTHOR);
752 info(DRIVER_DESC);
753
754 return 0;
755failed_usb_register:
756 usb_serial_deregister(&kobil_device);
757failed_usb_serial_register:
758 return retval;
759}
760
761
762static void __exit kobil_exit (void)
763{
764 usb_deregister (&kobil_driver);
765 usb_serial_deregister (&kobil_device);
766}
767
768module_init(kobil_init);
769module_exit(kobil_exit);
770
771MODULE_AUTHOR( DRIVER_AUTHOR );
772MODULE_DESCRIPTION( DRIVER_DESC );
773MODULE_LICENSE( "GPL" );
774
775module_param(debug, bool, S_IRUGO | S_IWUSR);
776MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux kernel - Deliverables
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