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USB: replace remaining __FUNCTION__ occurrences
[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 );
94d0f7ea 85static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old);
1da177e4
LT		 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 = {
1da177e4
LT		 100 .name = "kobil",
101 .probe = usb_serial_probe,
102 .disconnect = usb_serial_disconnect,
103 .id_table = id_table,
ba9dc657 104 .no_dynamic_id = 1,
1da177e4
LT		 105};
106
107
ea65370d 108static struct usb_serial_driver kobil_device = {
18fcac35
GKH		 109 .driver = {
110 .owner = THIS_MODULE,
269bda1c 111 .name = "kobil",
18fcac35 112 },
269bda1c 113 .description = "KOBIL USB smart card terminal",
d9b1b787 114 .usb_driver = &kobil_driver,
1da177e4 115 .id_table = id_table,
1da177e4
LT		 116 .num_ports = 1,
117 .attach = kobil_startup,
118 .shutdown = kobil_shutdown,
119 .ioctl = kobil_ioctl,
94d0f7ea 120 .set_termios = kobil_set_termios,
1da177e4
LT		 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;
1da177e4
LT		 138};
139
140
141static int kobil_startup (struct usb_serial *serial)
142{
143 int i;
144 struct kobil_private *priv;
145 struct usb_device *pdev;
146 struct usb_host_config *actconfig;
147 struct usb_interface *interface;
148 struct usb_host_interface *altsetting;
149 struct usb_host_endpoint *endpoint;
150
151 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
152 if (!priv){
153 return -ENOMEM;
154 }
155
156 priv->filled = 0;
157 priv->cur_pos = 0;
158 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
1da177e4
LT		 159
160 switch (priv->device_type){
161 case KOBIL_ADAPTER_B_PRODUCT_ID:
162 printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
163 break;
164 case KOBIL_ADAPTER_K_PRODUCT_ID:
165 printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
166 break;
167 case KOBIL_USBTWIN_PRODUCT_ID:
168 printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
169 break;
170 case KOBIL_KAAN_SIM_PRODUCT_ID:
171 printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
172 break;
173 }
174 usb_set_serial_port_data(serial->port[0], priv);
175
176 // search for the necessary endpoints
177 pdev = serial->dev;
178 actconfig = pdev->actconfig;
179 interface = actconfig->interface[0];
180 altsetting = interface->cur_altsetting;
181 endpoint = altsetting->endpoint;
182
183 for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
184 endpoint = &altsetting->endpoint[i];
4f1f1ddd 185 if (usb_endpoint_is_int_out(&endpoint->desc)) {
441b62c1 186 dbg("%s Found interrupt out endpoint. Address: %d", __func__, endpoint->desc.bEndpointAddress);
1da177e4
LT		 187 priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress;
188 }
4f1f1ddd 189 if (usb_endpoint_is_int_in(&endpoint->desc)) {
441b62c1 190 dbg("%s Found interrupt in endpoint. Address: %d", __func__, endpoint->desc.bEndpointAddress);
1da177e4
LT		 191 priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress;
192 }
193 }
194 return 0;
195}
196
197
198static void kobil_shutdown (struct usb_serial *serial)
199{
200 int i;
441b62c1 201 dbg("%s - port %d", __func__, serial->port[0]->number);
1da177e4
LT		 202
203 for (i=0; i < serial->num_ports; ++i) {
204 while (serial->port[i]->open_count > 0) {
205 kobil_close (serial->port[i], NULL);
206 }
207 kfree(usb_get_serial_port_data(serial->port[i]));
208 usb_set_serial_port_data(serial->port[i], NULL);
209 }
210}
211
212
213static int kobil_open (struct usb_serial_port *port, struct file *filp)
214{
94d0f7ea 215 int result = 0;
1da177e4
LT		 216 struct kobil_private *priv;
217 unsigned char *transfer_buffer;
218 int transfer_buffer_length = 8;
219 int write_urb_transfer_buffer_length = 8;
220
441b62c1 221 dbg("%s - port %d", __func__, port->number);
1da177e4 222 priv = usb_get_serial_port_data(port);
1da177e4
LT		 223
224 // someone sets the dev to 0 if the close method has been called
225 port->interrupt_in_urb->dev = port->serial->dev;
226
227
228 /* force low_latency on so that our tty_push actually forces
229 * the data through, otherwise it is scheduled, and with high
230 * data rates (like with OHCI) data can get lost.
231 */
232 port->tty->low_latency = 1;
233
234 // without this, every push_tty_char is echoed :-(
235 port->tty->termios->c_lflag = 0;
236 port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
237 port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
238 port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D)
239
1da177e4 240 // allocate memory for transfer buffer
80b6ca48 241 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 242 if (! transfer_buffer) {
243 return -ENOMEM;
1da177e4
LT		 244 }
245
246 // allocate write_urb
247 if (!port->write_urb) {
441b62c1 248 dbg("%s - port %d Allocating port->write_urb", __func__, port->number);
1da177e4
LT		 249 port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
250 if (!port->write_urb) {
441b62c1 251 dbg("%s - port %d usb_alloc_urb failed", __func__, port->number);
1da177e4
LT		 252 kfree(transfer_buffer);
253 return -ENOMEM;
254 }
255 }
256
257 // allocate memory for write_urb transfer buffer
5cbded58 258 port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 259 if (! port->write_urb->transfer_buffer) {
260 kfree(transfer_buffer);
261 usb_free_urb(port->write_urb);
262 port->write_urb = NULL;
263 return -ENOMEM;
264 }
265
266 // get hardware version
267 result = usb_control_msg( port->serial->dev,
268 usb_rcvctrlpipe(port->serial->dev, 0 ),
269 SUSBCRequest_GetMisc,
270 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
271 SUSBCR_MSC_GetHWVersion,
272 0,
273 transfer_buffer,
274 transfer_buffer_length,
275 KOBIL_TIMEOUT
276 );
441b62c1 277 dbg("%s - port %d Send get_HW_version URB returns: %i", __func__, port->number, result);
1da177e4
LT		 278 dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
279
280 // get firmware 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_GetFWVersion,
286 0,
287 transfer_buffer,
288 transfer_buffer_length,
289 KOBIL_TIMEOUT
290 );
441b62c1 291 dbg("%s - port %d Send get_FW_version URB returns: %i", __func__, port->number, result);
1da177e4
LT		 292 dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
293
294 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
295 // Setting Baudrate, Parity and Stopbits
296 result = usb_control_msg( port->serial->dev,
297 usb_rcvctrlpipe(port->serial->dev, 0 ),
298 SUSBCRequest_SetBaudRateParityAndStopBits,
299 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
300 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | SUSBCR_SPASB_1StopBit,
301 0,
302 transfer_buffer,
303 0,
304 KOBIL_TIMEOUT
305 );
441b62c1 306 dbg("%s - port %d Send set_baudrate URB returns: %i", __func__, port->number, result);
1da177e4
LT		 307
308 // reset all queues
309 result = usb_control_msg( port->serial->dev,
310 usb_rcvctrlpipe(port->serial->dev, 0 ),
311 SUSBCRequest_Misc,
312 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
313 SUSBCR_MSC_ResetAllQueues,
314 0,
315 transfer_buffer,
316 0,
317 KOBIL_TIMEOUT
318 );
441b62c1 319 dbg("%s - port %d Send reset_all_queues URB returns: %i", __func__, port->number, result);
1da177e4
LT		 320 }
321 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
322 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
323 // start reading (Adapter B 'cause PNP string)
324 result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC );
441b62c1 325 dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
1da177e4
LT		 326 }
327
328 kfree(transfer_buffer);
329 return 0;
330}
331
332
333static void kobil_close (struct usb_serial_port *port, struct file *filp)
334{
441b62c1 335 dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 336
337 if (port->write_urb) {
338 usb_kill_urb(port->write_urb);
339 usb_free_urb( port->write_urb );
340 port->write_urb = NULL;
341 }
5505c226 342 usb_kill_urb(port->interrupt_in_urb);
1da177e4
LT		 343}
344
345
6fcdcf04 346static void kobil_read_int_callback(struct urb *urb)
1da177e4 347{
1da177e4 348 int result;
6fcdcf04 349 struct usb_serial_port *port = urb->context;
1da177e4 350 struct tty_struct *tty;
6fcdcf04
GKH		 351 unsigned char *data = urb->transfer_buffer;
352 int status = urb->status;
1da177e4
LT		 353// char *dbg_data;
354
441b62c1 355 dbg("%s - port %d", __func__, port->number);
1da177e4 356
6fcdcf04
GKH		 357 if (status) {
358 dbg("%s - port %d Read int status not zero: %d",
441b62c1 359 __func__, port->number, status);
1da177e4
LT		 360 return;
361 }
6fcdcf04
GKH		 362
363 tty = port->tty;
364 if (urb->actual_length) {
365
1da177e4
LT		 366 // BEGIN DEBUG
367 /*
80b6ca48 368 dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
1da177e4
LT		 369 if (! dbg_data) {
370 return;
371 }
1da177e4
LT		 372 for (i = 0; i < purb->actual_length; i++) {
373 sprintf(dbg_data +3*i, "%02X ", data[i]);
374 }
375 dbg(" <-- %s", dbg_data );
376 kfree(dbg_data);
377 */
378 // END DEBUG
379
6fcdcf04
GKH		 380 tty_buffer_request_room(tty, urb->actual_length);
381 tty_insert_flip_string(tty, data, urb->actual_length);
1da177e4
LT		 382 tty_flip_buffer_push(tty);
383 }
384
385 // someone sets the dev to 0 if the close method has been called
386 port->interrupt_in_urb->dev = port->serial->dev;
387
6fcdcf04 388 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
441b62c1 389 dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
1da177e4
LT		 390}
391
392
7d12e780 393static void kobil_write_callback( struct urb *purb )
1da177e4
LT		 394{
395}
396
397
398static int kobil_write (struct usb_serial_port *port,
399 const unsigned char *buf, int count)
400{
401 int length = 0;
402 int result = 0;
403 int todo = 0;
404 struct kobil_private * priv;
405
406 if (count == 0) {
441b62c1 407 dbg("%s - port %d write request of 0 bytes", __func__, port->number);
1da177e4
LT		 408 return 0;
409 }
410
411 priv = usb_get_serial_port_data(port);
412
413 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
441b62c1 414 dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number);
1da177e4
LT		 415 return -ENOMEM;
416 }
417
418 // Copy data to buffer
419 memcpy (priv->buf + priv->filled, buf, count);
420
441b62c1 421 usb_serial_debug_data(debug, &port->dev, __func__, count, priv->buf + priv->filled);
1da177e4
LT		 422
423 priv->filled = priv->filled + count;
424
425
426 // only send complete block. TWIN, KAAN SIM and adapter K use the same protocol.
427 if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
428 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) {
429
430 // stop reading (except TWIN and KAAN SIM)
431 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) )
432 usb_kill_urb(port->interrupt_in_urb);
433
434 todo = priv->filled - priv->cur_pos;
435
436 while(todo > 0) {
437 // max 8 byte in one urb (endpoint size)
438 length = (todo < 8) ? todo : 8;
439 // copy data to transfer buffer
440 memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length );
441 usb_fill_int_urb( port->write_urb,
442 port->serial->dev,
443 usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address),
444 port->write_urb->transfer_buffer,
445 length,
446 kobil_write_callback,
447 port,
448 8
449 );
450
451 priv->cur_pos = priv->cur_pos + length;
452 result = usb_submit_urb( port->write_urb, GFP_NOIO );
441b62c1 453 dbg("%s - port %d Send write URB returns: %i", __func__, port->number, result);
1da177e4
LT		 454 todo = priv->filled - priv->cur_pos;
455
456 if (todo > 0) {
457 msleep(24);
458 }
459
460 } // end while
461
462 priv->filled = 0;
463 priv->cur_pos = 0;
464
465 // someone sets the dev to 0 if the close method has been called
466 port->interrupt_in_urb->dev = port->serial->dev;
467
468 // start reading (except TWIN and KAAN SIM)
469 if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
470 // someone sets the dev to 0 if the close method has been called
471 port->interrupt_in_urb->dev = port->serial->dev;
472
473 result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO );
441b62c1 474 dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
1da177e4
LT		 475 }
476 }
477 return count;
478}
479
480
481static int kobil_write_room (struct usb_serial_port *port)
482{
441b62c1 483 //dbg("%s - port %d", __func__, port->number);
1da177e4
LT		 484 return 8;
485}
486
487
488static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
489{
490 struct kobil_private * priv;
491 int result;
492 unsigned char *transfer_buffer;
493 int transfer_buffer_length = 8;
494
495 priv = usb_get_serial_port_data(port);
496 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
497 // This device doesn't support ioctl calls
498 return -EINVAL;
499 }
500
501 // allocate memory for transfer buffer
80b6ca48 502 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 503 if (!transfer_buffer) {
504 return -ENOMEM;
505 }
1da177e4
LT		 506
507 result = usb_control_msg( port->serial->dev,
508 usb_rcvctrlpipe(port->serial->dev, 0 ),
509 SUSBCRequest_GetStatusLineState,
510 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
511 0,
512 0,
513 transfer_buffer,
514 transfer_buffer_length,
515 KOBIL_TIMEOUT);
516
517 dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
441b62c1 518 __func__, port->number, result, transfer_buffer[0]);
1da177e4 519
a40d8540
AC		 520 result = 0;
521 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
522 result = TIOCM_DSR;
1da177e4 523 kfree(transfer_buffer);
a40d8540 524 return result;
1da177e4
LT		 525}
526
527static int kobil_tiocmset(struct usb_serial_port *port, struct file *file,
528 unsigned int set, unsigned int clear)
529{
530 struct kobil_private * priv;
531 int result;
532 int dtr = 0;
533 int rts = 0;
534 unsigned char *transfer_buffer;
535 int transfer_buffer_length = 8;
536
a40d8540 537 /* FIXME: locking ? */
1da177e4
LT		 538 priv = usb_get_serial_port_data(port);
539 if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
540 // This device doesn't support ioctl calls
541 return -EINVAL;
542 }
543
544 // allocate memory for transfer buffer
80b6ca48 545 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
1da177e4
LT		 546 if (! transfer_buffer) {
547 return -ENOMEM;
548 }
1da177e4
LT		 549
550 if (set & TIOCM_RTS)
551 rts = 1;
552 if (set & TIOCM_DTR)
553 dtr = 1;
554 if (clear & TIOCM_RTS)
555 rts = 0;
556 if (clear & TIOCM_DTR)
557 dtr = 0;
558
559 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
560 if (dtr != 0)
441b62c1 561 dbg("%s - port %d Setting DTR", __func__, port->number);
1da177e4 562 else
441b62c1 563 dbg("%s - port %d Clearing DTR", __func__, port->number);
1da177e4
LT		 564 result = usb_control_msg( port->serial->dev,
565 usb_rcvctrlpipe(port->serial->dev, 0 ),
566 SUSBCRequest_SetStatusLinesOrQueues,
567 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
568 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
569 0,
570 transfer_buffer,
571 0,
572 KOBIL_TIMEOUT);
573 } else {
574 if (rts != 0)
441b62c1 575 dbg("%s - port %d Setting RTS", __func__, port->number);
1da177e4 576 else
441b62c1 577 dbg("%s - port %d Clearing RTS", __func__, port->number);
1da177e4
LT		 578 result = usb_control_msg( port->serial->dev,
579 usb_rcvctrlpipe(port->serial->dev, 0 ),
580 SUSBCRequest_SetStatusLinesOrQueues,
581 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
582 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
583 0,
584 transfer_buffer,
585 0,
586 KOBIL_TIMEOUT);
587 }
441b62c1 588 dbg("%s - port %d Send set_status_line URB returns: %i", __func__, port->number, result);
1da177e4
LT		 589 kfree(transfer_buffer);
590 return (result < 0) ? result : 0;
591}
592
94d0f7ea 593static void kobil_set_termios(struct usb_serial_port *port, struct ktermios *old)
1da177e4
LT		 594{
595 struct kobil_private * priv;
596 int result;
597 unsigned short urb_val = 0;
94d0f7ea
AC		 598 int c_cflag = port->tty->termios->c_cflag;
599 speed_t speed;
600 void * settings;
1da177e4
LT		 601
602 priv = usb_get_serial_port_data(port);
94d0f7ea 603 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
1da177e4 604 // This device doesn't support ioctl calls
94d0f7ea 605 return;
1da177e4 606
94d0f7ea
AC		 607 switch (speed = tty_get_baud_rate(port->tty)) {
608 case 1200:
1da177e4 609 urb_val = SUSBCR_SBR_1200;
1da177e4 610 break;
1da177e4 611 default:
a6ebf80d
AC		 612 speed = 9600;
613 case 9600:
1da177e4 614 urb_val = SUSBCR_SBR_9600;
1da177e4 615 break;
94d0f7ea
AC		 616 }
617 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
618
619 settings = kzalloc(50, GFP_KERNEL);
620 if (! settings)
621 return;
1da177e4 622
94d0f7ea 623 sprintf(settings, "%d ", speed);
1da177e4 624
94d0f7ea
AC		 625 if (c_cflag & PARENB) {
626 if (c_cflag & PARODD) {
627 urb_val |= SUSBCR_SPASB_OddParity;
628 strcat(settings, "Odd Parity");
1da177e4 629 } else {
94d0f7ea
AC		 630 urb_val |= SUSBCR_SPASB_EvenParity;
631 strcat(settings, "Even Parity");
1da177e4 632 }
94d0f7ea
AC		 633 } else {
634 urb_val |= SUSBCR_SPASB_NoParity;
635 strcat(settings, "No Parity");
636 }
a6ebf80d
AC		 637 port->tty->termios->c_cflag &= ~CMSPAR;
638 tty_encode_baud_rate(port->tty, speed, speed);
1da177e4 639
94d0f7ea
AC		 640 result = usb_control_msg( port->serial->dev,
641 usb_rcvctrlpipe(port->serial->dev, 0 ),
642 SUSBCRequest_SetBaudRateParityAndStopBits,
643 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
644 urb_val,
645 0,
646 settings,
647 0,
648 KOBIL_TIMEOUT
649 );
650 kfree(settings);
651}
1da177e4 652
94d0f7ea
AC		 653static int kobil_ioctl(struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
654{
655 struct kobil_private * priv = usb_get_serial_port_data(port);
656 unsigned char *transfer_buffer;
657 int transfer_buffer_length = 8;
658 int result;
659
660 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
661 // This device doesn't support ioctl calls
1da177e4
LT		 662 return 0;
663
94d0f7ea 664 switch (cmd) {
1da177e4 665 case TCFLSH: // 0x540B
5cbded58 666 transfer_buffer = kmalloc(transfer_buffer_length, GFP_KERNEL);
94d0f7ea 667 if (! transfer_buffer)
1da177e4 668 return -ENOBUFS;
1da177e4
LT		 669
670 result = usb_control_msg( port->serial->dev,
671 usb_rcvctrlpipe(port->serial->dev, 0 ),
672 SUSBCRequest_Misc,
673 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
674 SUSBCR_MSC_ResetAllQueues,
675 0,
676 NULL,//transfer_buffer,
677 0,
678 KOBIL_TIMEOUT
679 );
680
441b62c1 681 dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
1da177e4 682 kfree(transfer_buffer);
94d0f7ea
AC		 683 return (result < 0) ? -EFAULT : 0;
684 default:
685 return -ENOIOCTLCMD;
1da177e4 686 }
1da177e4
LT		 687}
688
1da177e4
LT		 689static int __init kobil_init (void)
690{
691 int retval;
692 retval = usb_serial_register(&kobil_device);
693 if (retval)
694 goto failed_usb_serial_register;
695 retval = usb_register(&kobil_driver);
696 if (retval)
697 goto failed_usb_register;
698
699 info(DRIVER_VERSION " " DRIVER_AUTHOR);
700 info(DRIVER_DESC);
701
702 return 0;
703failed_usb_register:
704 usb_serial_deregister(&kobil_device);
705failed_usb_serial_register:
706 return retval;
707}
708
709
710static void __exit kobil_exit (void)
711{
712 usb_deregister (&kobil_driver);
713 usb_serial_deregister (&kobil_device);
714}
715
716module_init(kobil_init);
717module_exit(kobil_exit);
718
719MODULE_AUTHOR( DRIVER_AUTHOR );
720MODULE_DESCRIPTION( DRIVER_DESC );
721MODULE_LICENSE( "GPL" );
722
723module_param(debug, bool, S_IRUGO | S_IWUSR);
724MODULE_PARM_DESC(debug, "Debug enabled or not");
Linux 6.x block layer and io_uring tree(s)