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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * KOBIL USB Smart Card Terminal Driver
4 *
5 * Copyright (C) 2002 KOBIL Systems GmbH
6 * Author: Thomas Wahrenbruch
7 *
8 * Contact: linuxusb@kobil.de
9 *
10 * This program is largely derived from work by the linux-usb group
11 * and associated source files. Please see the usb/serial files for
12 * individual credits and copyrights.
13 *
14 * Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
15 * patience.
16 *
17 * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
18 * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
19 */
20
21
22#include <linux/kernel.h>
23#include <linux/errno.h>
24#include <linux/slab.h>
25#include <linux/tty.h>
26#include <linux/tty_driver.h>
27#include <linux/tty_flip.h>
28#include <linux/module.h>
29#include <linux/spinlock.h>
30#include <linux/uaccess.h>
31#include <linux/usb.h>
32#include <linux/usb/serial.h>
33#include <linux/ioctl.h>
34#include "kobil_sct.h"
35
36#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
37#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
38
39#define KOBIL_VENDOR_ID 0x0D46
40#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
41#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
42#define KOBIL_USBTWIN_PRODUCT_ID 0x0078
43#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
44
45#define KOBIL_TIMEOUT 500
46#define KOBIL_BUF_LENGTH 300
47
48
49/* Function prototypes */
50static int kobil_port_probe(struct usb_serial_port *probe);
51static void kobil_port_remove(struct usb_serial_port *probe);
52static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
53static void kobil_close(struct usb_serial_port *port);
54static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
55 const unsigned char *buf, int count);
56static unsigned int kobil_write_room(struct tty_struct *tty);
57static int kobil_ioctl(struct tty_struct *tty,
58 unsigned int cmd, unsigned long arg);
59static int kobil_tiocmget(struct tty_struct *tty);
60static int kobil_tiocmset(struct tty_struct *tty,
61 unsigned int set, unsigned int clear);
62static void kobil_read_int_callback(struct urb *urb);
63static void kobil_write_int_callback(struct urb *urb);
64static void kobil_set_termios(struct tty_struct *tty,
65 struct usb_serial_port *port,
66 const struct ktermios *old);
67static void kobil_init_termios(struct tty_struct *tty);
68
69static const struct usb_device_id id_table[] = {
70 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
71 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
72 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
73 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
74 { } /* Terminating entry */
75};
76MODULE_DEVICE_TABLE(usb, id_table);
77
78static struct usb_serial_driver kobil_device = {
79 .driver = {
80 .owner = THIS_MODULE,
81 .name = "kobil",
82 },
83 .description = "KOBIL USB smart card terminal",
84 .id_table = id_table,
85 .num_ports = 1,
86 .num_interrupt_out = 1,
87 .port_probe = kobil_port_probe,
88 .port_remove = kobil_port_remove,
89 .ioctl = kobil_ioctl,
90 .set_termios = kobil_set_termios,
91 .init_termios = kobil_init_termios,
92 .tiocmget = kobil_tiocmget,
93 .tiocmset = kobil_tiocmset,
94 .open = kobil_open,
95 .close = kobil_close,
96 .write = kobil_write,
97 .write_room = kobil_write_room,
98 .read_int_callback = kobil_read_int_callback,
99 .write_int_callback = kobil_write_int_callback,
100};
101
102static struct usb_serial_driver * const serial_drivers[] = {
103 &kobil_device, NULL
104};
105
106struct kobil_private {
107 unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
108 int filled; /* index of the last char in buf */
109 int cur_pos; /* index of the next char to send in buf */
110 __u16 device_type;
111};
112
113
114static int kobil_port_probe(struct usb_serial_port *port)
115{
116 struct usb_serial *serial = port->serial;
117 struct kobil_private *priv;
118
119 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
120 if (!priv)
121 return -ENOMEM;
122
123 priv->filled = 0;
124 priv->cur_pos = 0;
125 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
126
127 switch (priv->device_type) {
128 case KOBIL_ADAPTER_B_PRODUCT_ID:
129 dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
130 break;
131 case KOBIL_ADAPTER_K_PRODUCT_ID:
132 dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
133 break;
134 case KOBIL_USBTWIN_PRODUCT_ID:
135 dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
136 break;
137 case KOBIL_KAAN_SIM_PRODUCT_ID:
138 dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
139 break;
140 }
141 usb_set_serial_port_data(port, priv);
142
143 return 0;
144}
145
146
147static void kobil_port_remove(struct usb_serial_port *port)
148{
149 struct kobil_private *priv;
150
151 priv = usb_get_serial_port_data(port);
152 kfree(priv);
153}
154
155static void kobil_init_termios(struct tty_struct *tty)
156{
157 /* Default to echo off and other sane device settings */
158 tty->termios.c_lflag = 0;
159 tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
160 tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF;
161 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
162 tty->termios.c_oflag &= ~ONLCR;
163}
164
165static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
166{
167 struct device *dev = &port->dev;
168 int result = 0;
169 struct kobil_private *priv;
170 unsigned char *transfer_buffer;
171 int transfer_buffer_length = 8;
172
173 priv = usb_get_serial_port_data(port);
174
175 /* allocate memory for transfer buffer */
176 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
177 if (!transfer_buffer)
178 return -ENOMEM;
179
180 /* get hardware version */
181 result = usb_control_msg(port->serial->dev,
182 usb_rcvctrlpipe(port->serial->dev, 0),
183 SUSBCRequest_GetMisc,
184 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
185 SUSBCR_MSC_GetHWVersion,
186 0,
187 transfer_buffer,
188 transfer_buffer_length,
189 KOBIL_TIMEOUT
190 );
191 dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
192 if (result >= 3) {
193 dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0],
194 transfer_buffer[1], transfer_buffer[2]);
195 }
196
197 /* get firmware version */
198 result = usb_control_msg(port->serial->dev,
199 usb_rcvctrlpipe(port->serial->dev, 0),
200 SUSBCRequest_GetMisc,
201 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
202 SUSBCR_MSC_GetFWVersion,
203 0,
204 transfer_buffer,
205 transfer_buffer_length,
206 KOBIL_TIMEOUT
207 );
208 dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
209 if (result >= 3) {
210 dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
211 transfer_buffer[1], transfer_buffer[2]);
212 }
213
214 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
215 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
216 /* Setting Baudrate, Parity and Stopbits */
217 result = usb_control_msg(port->serial->dev,
218 usb_sndctrlpipe(port->serial->dev, 0),
219 SUSBCRequest_SetBaudRateParityAndStopBits,
220 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
221 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
222 SUSBCR_SPASB_1StopBit,
223 0,
224 NULL,
225 0,
226 KOBIL_TIMEOUT
227 );
228 dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result);
229
230 /* reset all queues */
231 result = usb_control_msg(port->serial->dev,
232 usb_sndctrlpipe(port->serial->dev, 0),
233 SUSBCRequest_Misc,
234 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
235 SUSBCR_MSC_ResetAllQueues,
236 0,
237 NULL,
238 0,
239 KOBIL_TIMEOUT
240 );
241 dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result);
242 }
243 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
244 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
245 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
246 /* start reading (Adapter B 'cause PNP string) */
247 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
248 dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result);
249 }
250
251 kfree(transfer_buffer);
252 return 0;
253}
254
255
256static void kobil_close(struct usb_serial_port *port)
257{
258 /* FIXME: Add rts/dtr methods */
259 usb_kill_urb(port->interrupt_out_urb);
260 usb_kill_urb(port->interrupt_in_urb);
261}
262
263
264static void kobil_read_int_callback(struct urb *urb)
265{
266 int result;
267 struct usb_serial_port *port = urb->context;
268 unsigned char *data = urb->transfer_buffer;
269 int status = urb->status;
270
271 if (status) {
272 dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status);
273 return;
274 }
275
276 if (urb->actual_length) {
277 usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
278 data);
279 tty_insert_flip_string(&port->port, data, urb->actual_length);
280 tty_flip_buffer_push(&port->port);
281 }
282
283 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
284 dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
285}
286
287
288static void kobil_write_int_callback(struct urb *urb)
289{
290}
291
292
293static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
294 const unsigned char *buf, int count)
295{
296 int length = 0;
297 int result = 0;
298 int todo = 0;
299 struct kobil_private *priv;
300
301 if (count == 0) {
302 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
303 return 0;
304 }
305
306 priv = usb_get_serial_port_data(port);
307
308 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
309 dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__);
310 return -ENOMEM;
311 }
312
313 /* Copy data to buffer */
314 memcpy(priv->buf + priv->filled, buf, count);
315 usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
316 priv->filled = priv->filled + count;
317
318 /* only send complete block. TWIN, KAAN SIM and adapter K
319 use the same protocol. */
320 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
321 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
322 /* stop reading (except TWIN and KAAN SIM) */
323 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
324 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
325 usb_kill_urb(port->interrupt_in_urb);
326
327 todo = priv->filled - priv->cur_pos;
328
329 while (todo > 0) {
330 /* max 8 byte in one urb (endpoint size) */
331 length = min(todo, port->interrupt_out_size);
332 /* copy data to transfer buffer */
333 memcpy(port->interrupt_out_buffer,
334 priv->buf + priv->cur_pos, length);
335 port->interrupt_out_urb->transfer_buffer_length = length;
336
337 priv->cur_pos = priv->cur_pos + length;
338 result = usb_submit_urb(port->interrupt_out_urb,
339 GFP_ATOMIC);
340 dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result);
341 todo = priv->filled - priv->cur_pos;
342
343 if (todo > 0)
344 msleep(24);
345 }
346
347 priv->filled = 0;
348 priv->cur_pos = 0;
349
350 /* start reading (except TWIN and KAAN SIM) */
351 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
352 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
353 result = usb_submit_urb(port->interrupt_in_urb,
354 GFP_ATOMIC);
355 dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
356 }
357 }
358 return count;
359}
360
361
362static unsigned int kobil_write_room(struct tty_struct *tty)
363{
364 /* FIXME */
365 return 8;
366}
367
368
369static int kobil_tiocmget(struct tty_struct *tty)
370{
371 struct usb_serial_port *port = tty->driver_data;
372 struct kobil_private *priv;
373 int result;
374 unsigned char *transfer_buffer;
375 int transfer_buffer_length = 8;
376
377 priv = usb_get_serial_port_data(port);
378 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
379 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
380 /* This device doesn't support ioctl calls */
381 return -EINVAL;
382 }
383
384 /* allocate memory for transfer buffer */
385 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
386 if (!transfer_buffer)
387 return -ENOMEM;
388
389 result = usb_control_msg(port->serial->dev,
390 usb_rcvctrlpipe(port->serial->dev, 0),
391 SUSBCRequest_GetStatusLineState,
392 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
393 0,
394 0,
395 transfer_buffer,
396 transfer_buffer_length,
397 KOBIL_TIMEOUT);
398
399 dev_dbg(&port->dev, "Send get_status_line_state URB returns: %i\n",
400 result);
401 if (result < 1) {
402 if (result >= 0)
403 result = -EIO;
404 goto out_free;
405 }
406
407 dev_dbg(&port->dev, "Statusline: %02x\n", transfer_buffer[0]);
408
409 result = 0;
410 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
411 result = TIOCM_DSR;
412out_free:
413 kfree(transfer_buffer);
414 return result;
415}
416
417static int kobil_tiocmset(struct tty_struct *tty,
418 unsigned int set, unsigned int clear)
419{
420 struct usb_serial_port *port = tty->driver_data;
421 struct device *dev = &port->dev;
422 struct kobil_private *priv;
423 int result;
424 int dtr = 0;
425 int rts = 0;
426
427 /* FIXME: locking ? */
428 priv = usb_get_serial_port_data(port);
429 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
430 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
431 /* This device doesn't support ioctl calls */
432 return -EINVAL;
433 }
434
435 if (set & TIOCM_RTS)
436 rts = 1;
437 if (set & TIOCM_DTR)
438 dtr = 1;
439 if (clear & TIOCM_RTS)
440 rts = 0;
441 if (clear & TIOCM_DTR)
442 dtr = 0;
443
444 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
445 if (dtr != 0)
446 dev_dbg(dev, "%s - Setting DTR\n", __func__);
447 else
448 dev_dbg(dev, "%s - Clearing DTR\n", __func__);
449 result = usb_control_msg(port->serial->dev,
450 usb_sndctrlpipe(port->serial->dev, 0),
451 SUSBCRequest_SetStatusLinesOrQueues,
452 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
453 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
454 0,
455 NULL,
456 0,
457 KOBIL_TIMEOUT);
458 } else {
459 if (rts != 0)
460 dev_dbg(dev, "%s - Setting RTS\n", __func__);
461 else
462 dev_dbg(dev, "%s - Clearing RTS\n", __func__);
463 result = usb_control_msg(port->serial->dev,
464 usb_sndctrlpipe(port->serial->dev, 0),
465 SUSBCRequest_SetStatusLinesOrQueues,
466 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
467 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
468 0,
469 NULL,
470 0,
471 KOBIL_TIMEOUT);
472 }
473 dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result);
474 return (result < 0) ? result : 0;
475}
476
477static void kobil_set_termios(struct tty_struct *tty,
478 struct usb_serial_port *port,
479 const struct ktermios *old)
480{
481 struct kobil_private *priv;
482 int result;
483 unsigned short urb_val = 0;
484 int c_cflag = tty->termios.c_cflag;
485 speed_t speed;
486
487 priv = usb_get_serial_port_data(port);
488 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
489 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
490 /* This device doesn't support ioctl calls */
491 tty_termios_copy_hw(&tty->termios, old);
492 return;
493 }
494
495 speed = tty_get_baud_rate(tty);
496 switch (speed) {
497 case 1200:
498 urb_val = SUSBCR_SBR_1200;
499 break;
500 default:
501 speed = 9600;
502 fallthrough;
503 case 9600:
504 urb_val = SUSBCR_SBR_9600;
505 break;
506 }
507 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
508 SUSBCR_SPASB_1StopBit;
509 if (c_cflag & PARENB) {
510 if (c_cflag & PARODD)
511 urb_val |= SUSBCR_SPASB_OddParity;
512 else
513 urb_val |= SUSBCR_SPASB_EvenParity;
514 } else
515 urb_val |= SUSBCR_SPASB_NoParity;
516 tty->termios.c_cflag &= ~CMSPAR;
517 tty_encode_baud_rate(tty, speed, speed);
518
519 result = usb_control_msg(port->serial->dev,
520 usb_sndctrlpipe(port->serial->dev, 0),
521 SUSBCRequest_SetBaudRateParityAndStopBits,
522 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
523 urb_val,
524 0,
525 NULL,
526 0,
527 KOBIL_TIMEOUT
528 );
529 if (result) {
530 dev_err(&port->dev, "failed to update line settings: %d\n",
531 result);
532 }
533}
534
535static int kobil_ioctl(struct tty_struct *tty,
536 unsigned int cmd, unsigned long arg)
537{
538 struct usb_serial_port *port = tty->driver_data;
539 struct kobil_private *priv = usb_get_serial_port_data(port);
540 int result;
541
542 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
543 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
544 /* This device doesn't support ioctl calls */
545 return -ENOIOCTLCMD;
546
547 switch (cmd) {
548 case TCFLSH:
549 result = usb_control_msg(port->serial->dev,
550 usb_sndctrlpipe(port->serial->dev, 0),
551 SUSBCRequest_Misc,
552 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
553 SUSBCR_MSC_ResetAllQueues,
554 0,
555 NULL,
556 0,
557 KOBIL_TIMEOUT
558 );
559
560 dev_dbg(&port->dev,
561 "%s - Send reset_all_queues (FLUSH) URB returns: %i\n",
562 __func__, result);
563 return (result < 0) ? -EIO: 0;
564 default:
565 return -ENOIOCTLCMD;
566 }
567}
568
569module_usb_serial_driver(serial_drivers, id_table);
570
571MODULE_AUTHOR(DRIVER_AUTHOR);
572MODULE_DESCRIPTION(DRIVER_DESC);
573MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * KOBIL USB Smart Card Terminal Driver
4 *
5 * Copyright (C) 2002 KOBIL Systems GmbH
6 * Author: Thomas Wahrenbruch
7 *
8 * Contact: linuxusb@kobil.de
9 *
10 * This program is largely derived from work by the linux-usb group
11 * and associated source files. Please see the usb/serial files for
12 * individual credits and copyrights.
13 *
14 * Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
15 * patience.
16 *
17 * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
18 * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
19 */
20
21
22#include <linux/kernel.h>
23#include <linux/errno.h>
24#include <linux/slab.h>
25#include <linux/tty.h>
26#include <linux/tty_driver.h>
27#include <linux/tty_flip.h>
28#include <linux/module.h>
29#include <linux/spinlock.h>
30#include <linux/uaccess.h>
31#include <linux/usb.h>
32#include <linux/usb/serial.h>
33#include <linux/ioctl.h>
34#include "kobil_sct.h"
35
36#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
37#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
38
39#define KOBIL_VENDOR_ID 0x0D46
40#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
41#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
42#define KOBIL_USBTWIN_PRODUCT_ID 0x0078
43#define KOBIL_KAAN_SIM_PRODUCT_ID 0x0081
44
45#define KOBIL_TIMEOUT 500
46#define KOBIL_BUF_LENGTH 300
47
48
49/* Function prototypes */
50static int kobil_port_probe(struct usb_serial_port *probe);
51static int kobil_port_remove(struct usb_serial_port *probe);
52static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
53static void kobil_close(struct usb_serial_port *port);
54static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
55 const unsigned char *buf, int count);
56static int kobil_write_room(struct tty_struct *tty);
57static int kobil_ioctl(struct tty_struct *tty,
58 unsigned int cmd, unsigned long arg);
59static int kobil_tiocmget(struct tty_struct *tty);
60static int kobil_tiocmset(struct tty_struct *tty,
61 unsigned int set, unsigned int clear);
62static void kobil_read_int_callback(struct urb *urb);
63static void kobil_write_int_callback(struct urb *urb);
64static void kobil_set_termios(struct tty_struct *tty,
65 struct usb_serial_port *port, struct ktermios *old);
66static void kobil_init_termios(struct tty_struct *tty);
67
68static const struct usb_device_id id_table[] = {
69 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
70 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
71 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
72 { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_KAAN_SIM_PRODUCT_ID) },
73 { } /* Terminating entry */
74};
75MODULE_DEVICE_TABLE(usb, id_table);
76
77static struct usb_serial_driver kobil_device = {
78 .driver = {
79 .owner = THIS_MODULE,
80 .name = "kobil",
81 },
82 .description = "KOBIL USB smart card terminal",
83 .id_table = id_table,
84 .num_ports = 1,
85 .num_interrupt_out = 1,
86 .port_probe = kobil_port_probe,
87 .port_remove = kobil_port_remove,
88 .ioctl = kobil_ioctl,
89 .set_termios = kobil_set_termios,
90 .init_termios = kobil_init_termios,
91 .tiocmget = kobil_tiocmget,
92 .tiocmset = kobil_tiocmset,
93 .open = kobil_open,
94 .close = kobil_close,
95 .write = kobil_write,
96 .write_room = kobil_write_room,
97 .read_int_callback = kobil_read_int_callback,
98 .write_int_callback = kobil_write_int_callback,
99};
100
101static struct usb_serial_driver * const serial_drivers[] = {
102 &kobil_device, NULL
103};
104
105struct kobil_private {
106 unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
107 int filled; /* index of the last char in buf */
108 int cur_pos; /* index of the next char to send in buf */
109 __u16 device_type;
110};
111
112
113static int kobil_port_probe(struct usb_serial_port *port)
114{
115 struct usb_serial *serial = port->serial;
116 struct kobil_private *priv;
117
118 priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
119 if (!priv)
120 return -ENOMEM;
121
122 priv->filled = 0;
123 priv->cur_pos = 0;
124 priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
125
126 switch (priv->device_type) {
127 case KOBIL_ADAPTER_B_PRODUCT_ID:
128 dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
129 break;
130 case KOBIL_ADAPTER_K_PRODUCT_ID:
131 dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
132 break;
133 case KOBIL_USBTWIN_PRODUCT_ID:
134 dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
135 break;
136 case KOBIL_KAAN_SIM_PRODUCT_ID:
137 dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
138 break;
139 }
140 usb_set_serial_port_data(port, priv);
141
142 return 0;
143}
144
145
146static int kobil_port_remove(struct usb_serial_port *port)
147{
148 struct kobil_private *priv;
149
150 priv = usb_get_serial_port_data(port);
151 kfree(priv);
152
153 return 0;
154}
155
156static void kobil_init_termios(struct tty_struct *tty)
157{
158 /* Default to echo off and other sane device settings */
159 tty->termios.c_lflag = 0;
160 tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
161 tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF;
162 /* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
163 tty->termios.c_oflag &= ~ONLCR;
164}
165
166static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
167{
168 struct device *dev = &port->dev;
169 int result = 0;
170 struct kobil_private *priv;
171 unsigned char *transfer_buffer;
172 int transfer_buffer_length = 8;
173
174 priv = usb_get_serial_port_data(port);
175
176 /* allocate memory for transfer buffer */
177 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
178 if (!transfer_buffer)
179 return -ENOMEM;
180
181 /* get hardware version */
182 result = usb_control_msg(port->serial->dev,
183 usb_rcvctrlpipe(port->serial->dev, 0),
184 SUSBCRequest_GetMisc,
185 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
186 SUSBCR_MSC_GetHWVersion,
187 0,
188 transfer_buffer,
189 transfer_buffer_length,
190 KOBIL_TIMEOUT
191 );
192 dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
193 dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0],
194 transfer_buffer[1], transfer_buffer[2]);
195
196 /* get firmware version */
197 result = usb_control_msg(port->serial->dev,
198 usb_rcvctrlpipe(port->serial->dev, 0),
199 SUSBCRequest_GetMisc,
200 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
201 SUSBCR_MSC_GetFWVersion,
202 0,
203 transfer_buffer,
204 transfer_buffer_length,
205 KOBIL_TIMEOUT
206 );
207 dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
208 dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
209 transfer_buffer[1], transfer_buffer[2]);
210
211 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
212 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
213 /* Setting Baudrate, Parity and Stopbits */
214 result = usb_control_msg(port->serial->dev,
215 usb_sndctrlpipe(port->serial->dev, 0),
216 SUSBCRequest_SetBaudRateParityAndStopBits,
217 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
218 SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity |
219 SUSBCR_SPASB_1StopBit,
220 0,
221 NULL,
222 0,
223 KOBIL_TIMEOUT
224 );
225 dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result);
226
227 /* reset all queues */
228 result = usb_control_msg(port->serial->dev,
229 usb_sndctrlpipe(port->serial->dev, 0),
230 SUSBCRequest_Misc,
231 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
232 SUSBCR_MSC_ResetAllQueues,
233 0,
234 NULL,
235 0,
236 KOBIL_TIMEOUT
237 );
238 dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result);
239 }
240 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
241 priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
242 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
243 /* start reading (Adapter B 'cause PNP string) */
244 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
245 dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result);
246 }
247
248 kfree(transfer_buffer);
249 return 0;
250}
251
252
253static void kobil_close(struct usb_serial_port *port)
254{
255 /* FIXME: Add rts/dtr methods */
256 usb_kill_urb(port->interrupt_out_urb);
257 usb_kill_urb(port->interrupt_in_urb);
258}
259
260
261static void kobil_read_int_callback(struct urb *urb)
262{
263 int result;
264 struct usb_serial_port *port = urb->context;
265 unsigned char *data = urb->transfer_buffer;
266 int status = urb->status;
267
268 if (status) {
269 dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status);
270 return;
271 }
272
273 if (urb->actual_length) {
274 usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
275 data);
276 tty_insert_flip_string(&port->port, data, urb->actual_length);
277 tty_flip_buffer_push(&port->port);
278 }
279
280 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
281 dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
282}
283
284
285static void kobil_write_int_callback(struct urb *urb)
286{
287}
288
289
290static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
291 const unsigned char *buf, int count)
292{
293 int length = 0;
294 int result = 0;
295 int todo = 0;
296 struct kobil_private *priv;
297
298 if (count == 0) {
299 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
300 return 0;
301 }
302
303 priv = usb_get_serial_port_data(port);
304
305 if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
306 dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__);
307 return -ENOMEM;
308 }
309
310 /* Copy data to buffer */
311 memcpy(priv->buf + priv->filled, buf, count);
312 usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
313 priv->filled = priv->filled + count;
314
315 /* only send complete block. TWIN, KAAN SIM and adapter K
316 use the same protocol. */
317 if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) ||
318 ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {
319 /* stop reading (except TWIN and KAAN SIM) */
320 if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
321 || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
322 usb_kill_urb(port->interrupt_in_urb);
323
324 todo = priv->filled - priv->cur_pos;
325
326 while (todo > 0) {
327 /* max 8 byte in one urb (endpoint size) */
328 length = min(todo, port->interrupt_out_size);
329 /* copy data to transfer buffer */
330 memcpy(port->interrupt_out_buffer,
331 priv->buf + priv->cur_pos, length);
332 port->interrupt_out_urb->transfer_buffer_length = length;
333
334 priv->cur_pos = priv->cur_pos + length;
335 result = usb_submit_urb(port->interrupt_out_urb,
336 GFP_ATOMIC);
337 dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result);
338 todo = priv->filled - priv->cur_pos;
339
340 if (todo > 0)
341 msleep(24);
342 }
343
344 priv->filled = 0;
345 priv->cur_pos = 0;
346
347 /* start reading (except TWIN and KAAN SIM) */
348 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
349 priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
350 result = usb_submit_urb(port->interrupt_in_urb,
351 GFP_ATOMIC);
352 dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
353 }
354 }
355 return count;
356}
357
358
359static int kobil_write_room(struct tty_struct *tty)
360{
361 /* FIXME */
362 return 8;
363}
364
365
366static int kobil_tiocmget(struct tty_struct *tty)
367{
368 struct usb_serial_port *port = tty->driver_data;
369 struct kobil_private *priv;
370 int result;
371 unsigned char *transfer_buffer;
372 int transfer_buffer_length = 8;
373
374 priv = usb_get_serial_port_data(port);
375 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
376 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
377 /* This device doesn't support ioctl calls */
378 return -EINVAL;
379 }
380
381 /* allocate memory for transfer buffer */
382 transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
383 if (!transfer_buffer)
384 return -ENOMEM;
385
386 result = usb_control_msg(port->serial->dev,
387 usb_rcvctrlpipe(port->serial->dev, 0),
388 SUSBCRequest_GetStatusLineState,
389 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
390 0,
391 0,
392 transfer_buffer,
393 transfer_buffer_length,
394 KOBIL_TIMEOUT);
395
396 dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n",
397 __func__, result, transfer_buffer[0]);
398
399 result = 0;
400 if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
401 result = TIOCM_DSR;
402 kfree(transfer_buffer);
403 return result;
404}
405
406static int kobil_tiocmset(struct tty_struct *tty,
407 unsigned int set, unsigned int clear)
408{
409 struct usb_serial_port *port = tty->driver_data;
410 struct device *dev = &port->dev;
411 struct kobil_private *priv;
412 int result;
413 int dtr = 0;
414 int rts = 0;
415
416 /* FIXME: locking ? */
417 priv = usb_get_serial_port_data(port);
418 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
419 || priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
420 /* This device doesn't support ioctl calls */
421 return -EINVAL;
422 }
423
424 if (set & TIOCM_RTS)
425 rts = 1;
426 if (set & TIOCM_DTR)
427 dtr = 1;
428 if (clear & TIOCM_RTS)
429 rts = 0;
430 if (clear & TIOCM_DTR)
431 dtr = 0;
432
433 if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
434 if (dtr != 0)
435 dev_dbg(dev, "%s - Setting DTR\n", __func__);
436 else
437 dev_dbg(dev, "%s - Clearing DTR\n", __func__);
438 result = usb_control_msg(port->serial->dev,
439 usb_sndctrlpipe(port->serial->dev, 0),
440 SUSBCRequest_SetStatusLinesOrQueues,
441 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
442 ((dtr != 0) ? SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
443 0,
444 NULL,
445 0,
446 KOBIL_TIMEOUT);
447 } else {
448 if (rts != 0)
449 dev_dbg(dev, "%s - Setting RTS\n", __func__);
450 else
451 dev_dbg(dev, "%s - Clearing RTS\n", __func__);
452 result = usb_control_msg(port->serial->dev,
453 usb_sndctrlpipe(port->serial->dev, 0),
454 SUSBCRequest_SetStatusLinesOrQueues,
455 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
456 ((rts != 0) ? SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
457 0,
458 NULL,
459 0,
460 KOBIL_TIMEOUT);
461 }
462 dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result);
463 return (result < 0) ? result : 0;
464}
465
466static void kobil_set_termios(struct tty_struct *tty,
467 struct usb_serial_port *port, struct ktermios *old)
468{
469 struct kobil_private *priv;
470 int result;
471 unsigned short urb_val = 0;
472 int c_cflag = tty->termios.c_cflag;
473 speed_t speed;
474
475 priv = usb_get_serial_port_data(port);
476 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
477 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
478 /* This device doesn't support ioctl calls */
479 tty_termios_copy_hw(&tty->termios, old);
480 return;
481 }
482
483 speed = tty_get_baud_rate(tty);
484 switch (speed) {
485 case 1200:
486 urb_val = SUSBCR_SBR_1200;
487 break;
488 default:
489 speed = 9600;
490 /* fall through */
491 case 9600:
492 urb_val = SUSBCR_SBR_9600;
493 break;
494 }
495 urb_val |= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
496 SUSBCR_SPASB_1StopBit;
497 if (c_cflag & PARENB) {
498 if (c_cflag & PARODD)
499 urb_val |= SUSBCR_SPASB_OddParity;
500 else
501 urb_val |= SUSBCR_SPASB_EvenParity;
502 } else
503 urb_val |= SUSBCR_SPASB_NoParity;
504 tty->termios.c_cflag &= ~CMSPAR;
505 tty_encode_baud_rate(tty, speed, speed);
506
507 result = usb_control_msg(port->serial->dev,
508 usb_sndctrlpipe(port->serial->dev, 0),
509 SUSBCRequest_SetBaudRateParityAndStopBits,
510 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
511 urb_val,
512 0,
513 NULL,
514 0,
515 KOBIL_TIMEOUT
516 );
517}
518
519static int kobil_ioctl(struct tty_struct *tty,
520 unsigned int cmd, unsigned long arg)
521{
522 struct usb_serial_port *port = tty->driver_data;
523 struct kobil_private *priv = usb_get_serial_port_data(port);
524 int result;
525
526 if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
527 priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
528 /* This device doesn't support ioctl calls */
529 return -ENOIOCTLCMD;
530
531 switch (cmd) {
532 case TCFLSH:
533 result = usb_control_msg(port->serial->dev,
534 usb_sndctrlpipe(port->serial->dev, 0),
535 SUSBCRequest_Misc,
536 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT,
537 SUSBCR_MSC_ResetAllQueues,
538 0,
539 NULL,
540 0,
541 KOBIL_TIMEOUT
542 );
543
544 dev_dbg(&port->dev,
545 "%s - Send reset_all_queues (FLUSH) URB returns: %i\n",
546 __func__, result);
547 return (result < 0) ? -EIO: 0;
548 default:
549 return -ENOIOCTLCMD;
550 }
551}
552
553module_usb_serial_driver(serial_drivers, id_table);
554
555MODULE_AUTHOR(DRIVER_AUTHOR);
556MODULE_DESCRIPTION(DRIVER_DESC);
557MODULE_LICENSE("GPL");