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V4L/DVB (7956): cinergyT2: endianness annotations, endianness and race fixes
[deliverable/linux.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
CommitLineData
1da177e4 1/*
96de0e25 2 * TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
1da177e4
LT		 3 *
4 * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
5 * Holger Waechtler <holger@qanu.de>
6 *
7 * Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
1da177e4
LT		 25#include <linux/init.h>
26#include <linux/module.h>
1da177e4
LT		 27#include <linux/slab.h>
28#include <linux/usb.h>
1da177e4
LT		 29#include <linux/input.h>
30#include <linux/dvb/frontend.h>
3593cab5 31#include <linux/mutex.h>
f23f6e08 32#include <linux/mm.h>
6473d160 33#include <asm/io.h>
1da177e4
LT		 34
35#include "dmxdev.h"
36#include "dvb_demux.h"
37#include "dvb_net.h"
38
1da177e4
LT		 39#ifdef CONFIG_DVB_CINERGYT2_TUNING
40 #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
41 #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
42 #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
43 #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
44 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
45 #define ENABLE_RC (1)
46 #endif
47#else
48 #define STREAM_URB_COUNT (32)
49 #define STREAM_BUF_SIZE (512) /* bytes */
50 #define ENABLE_RC (1)
6d78933c 51 #define RC_QUERY_INTERVAL (50) /* milliseconds */
1da177e4
LT		 52 #define QUERY_INTERVAL (333) /* milliseconds */
53#endif
54
55#define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
56
57static int debug;
58module_param_named(debug, debug, int, 0644);
59MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
60
78e92006
JG		 61DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
62
1da177e4
LT		 63#define dprintk(level, args...) \
64do { \
65 if ((debug & level)) { \
367cb704 66 printk("%s: %s(): ", KBUILD_MODNAME, \
0592e8d3 67 __func__); \
1da177e4
LT		 68 printk(args); } \
69} while (0)
70
71enum cinergyt2_ep1_cmd {
72 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
73 CINERGYT2_EP1_PID_SETUP = 0x02,
74 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
75 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
76 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
77 CINERGYT2_EP1_START_SCAN = 0x06,
78 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
79 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
80 CINERGYT2_EP1_SLEEP_MODE = 0x09
81};
82
83struct dvbt_set_parameters_msg {
84 uint8_t cmd;
f34ec12a 85 __le32 freq;
1da177e4 86 uint8_t bandwidth;
f34ec12a 87 __le16 tps;
1da177e4
LT		 88 uint8_t flags;
89} __attribute__((packed));
90
91struct dvbt_get_status_msg {
f34ec12a 92 __le32 freq;
1da177e4 93 uint8_t bandwidth;
f34ec12a 94 __le16 tps;
1da177e4 95 uint8_t flags;
f34ec12a 96 __le16 gain;
1da177e4 97 uint8_t snr;
f34ec12a
AV		 98 __le32 viterbi_error_rate;
99 __le32 rs_error_rate;
100 __le32 uncorrected_block_count;
1da177e4
LT		 101 uint8_t lock_bits;
102 uint8_t prev_lock_bits;
103} __attribute__((packed));
104
105static struct dvb_frontend_info cinergyt2_fe_info = {
106 .name = DRIVER_NAME,
107 .type = FE_OFDM,
108 .frequency_min = 174000000,
109 .frequency_max = 862000000,
110 .frequency_stepsize = 166667,
111 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
112 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
113 FE_CAN_FEC_AUTO |
114 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
115 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
116 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
117};
118
119struct cinergyt2 {
120 struct dvb_demux demux;
121 struct usb_device *udev;
3593cab5 122 struct mutex sem;
1e4597e8 123 struct mutex wq_sem;
fdc53a6d 124 struct dvb_adapter adapter;
1da177e4
LT		 125 struct dvb_device *fedev;
126 struct dmxdev dmxdev;
127 struct dvb_net dvbnet;
128
129 int streaming;
130 int sleeping;
131
132 struct dvbt_set_parameters_msg param;
133 struct dvbt_get_status_msg status;
c4028958 134 struct delayed_work query_work;
1da177e4
LT		 135
136 wait_queue_head_t poll_wq;
137 int pending_fe_events;
e4acba3c 138 int disconnect_pending;
f34ec12a 139 unsigned int uncorrected_block_count;
e4acba3c 140 atomic_t inuse;
1da177e4
LT		 141
142 void *streambuf;
143 dma_addr_t streambuf_dmahandle;
144 struct urb *stream_urb [STREAM_URB_COUNT];
145
146#ifdef ENABLE_RC
b7df3910
DT		 147 struct input_dev *rc_input_dev;
148 char phys[64];
c4028958 149 struct delayed_work rc_query_work;
1da177e4 150 int rc_input_event;
f34ec12a 151 __le32 rc_last_code;
6d78933c 152 unsigned long last_event_jiffies;
1da177e4
LT		 153#endif
154};
155
156enum {
157 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
158 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
159 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
160};
161
162struct cinergyt2_rc_event {
163 char type;
f34ec12a 164 __le32 value;
1da177e4
LT		 165} __attribute__((packed));
166
6d78933c 167static const uint32_t rc_keys[] = {
1da177e4
LT		 168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
197 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
198 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
199 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
200 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
201 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
202 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
203 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
204 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
205};
206
207static int cinergyt2_command (struct cinergyt2 *cinergyt2,
208 char *send_buf, int send_buf_len,
209 char *recv_buf, int recv_buf_len)
210{
211 int actual_len;
212 char dummy;
213 int ret;
214
215 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
216 send_buf, send_buf_len, &actual_len, 1000);
217
218 if (ret)
219 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
220
221 if (!recv_buf)
222 recv_buf = &dummy;
223
224 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
225 recv_buf, recv_buf_len, &actual_len, 1000);
226
227 if (ret)
228 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
229
230 return ret ? ret : actual_len;
231}
232
233static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
234{
235 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
236 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
237}
238
239static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
240{
241 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
242 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
243 cinergyt2->sleeping = sleep;
244}
245
7d12e780 246static void cinergyt2_stream_irq (struct urb *urb);
1da177e4
LT		 247
248static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
249{
250 int err;
251
252 usb_fill_bulk_urb(urb,
253 cinergyt2->udev,
254 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
255 urb->transfer_buffer,
256 STREAM_BUF_SIZE,
257 cinergyt2_stream_irq,
258 cinergyt2);
259
260 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
261 dprintk(1, "urb submission failed (err = %i)!\n", err);
262
263 return err;
264}
265
7d12e780 266static void cinergyt2_stream_irq (struct urb *urb)
1da177e4
LT		 267{
268 struct cinergyt2 *cinergyt2 = urb->context;
269
270 if (urb->actual_length > 0)
271 dvb_dmx_swfilter(&cinergyt2->demux,
272 urb->transfer_buffer, urb->actual_length);
273
274 if (cinergyt2->streaming)
275 cinergyt2_submit_stream_urb(cinergyt2, urb);
276}
277
278static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
279{
280 int i;
281
282 for (i=0; i<STREAM_URB_COUNT; i++)
4064fe43 283 usb_free_urb(cinergyt2->stream_urb[i]);
1da177e4 284
574780d5 285 usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
1da177e4
LT		 286 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
287}
288
289static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
290{
291 int i;
292
574780d5 293 cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
e94b1766 294 GFP_KERNEL, &cinergyt2->streambuf_dmahandle);
1da177e4
LT		 295 if (!cinergyt2->streambuf) {
296 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
297 return -ENOMEM;
298 }
299
300 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
301
302 for (i=0; i<STREAM_URB_COUNT; i++) {
303 struct urb *urb;
304
305 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
306 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
307 cinergyt2_free_stream_urbs(cinergyt2);
308 return -ENOMEM;
309 }
310
311 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
312 urb->transfer_buffer_length = STREAM_BUF_SIZE;
313
314 cinergyt2->stream_urb[i] = urb;
315 }
316
317 return 0;
318}
319
320static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
321{
322 int i;
323
324 cinergyt2_control_stream_transfer(cinergyt2, 0);
325
326 for (i=0; i<STREAM_URB_COUNT; i++)
4064fe43 327 usb_kill_urb(cinergyt2->stream_urb[i]);
1da177e4
LT		 328}
329
330static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
331{
332 int i, err;
333
334 for (i=0; i<STREAM_URB_COUNT; i++) {
335 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
336 cinergyt2_stop_stream_xfer(cinergyt2);
337 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
338 return err;
339 }
340 }
341
342 cinergyt2_control_stream_transfer(cinergyt2, 1);
343 return 0;
344}
345
346static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
347{
348 struct dvb_demux *demux = dvbdmxfeed->demux;
349 struct cinergyt2 *cinergyt2 = demux->priv;
350
475d5263
JS		 351 if (cinergyt2->disconnect_pending)
352 return -EAGAIN;
353 if (mutex_lock_interruptible(&cinergyt2->sem))
1da177e4
LT		 354 return -ERESTARTSYS;
355
356 if (cinergyt2->streaming == 0)
357 cinergyt2_start_stream_xfer(cinergyt2);
358
359 cinergyt2->streaming++;
3593cab5 360 mutex_unlock(&cinergyt2->sem);
1da177e4
LT		 361 return 0;
362}
363
364static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
365{
366 struct dvb_demux *demux = dvbdmxfeed->demux;
367 struct cinergyt2 *cinergyt2 = demux->priv;
368
475d5263
JS		 369 if (cinergyt2->disconnect_pending)
370 return -EAGAIN;
371 if (mutex_lock_interruptible(&cinergyt2->sem))
1da177e4
LT		 372 return -ERESTARTSYS;
373
374 if (--cinergyt2->streaming == 0)
375 cinergyt2_stop_stream_xfer(cinergyt2);
376
3593cab5 377 mutex_unlock(&cinergyt2->sem);
1da177e4
LT		 378 return 0;
379}
380
381/**
382 * convert linux-dvb frontend parameter set into TPS.
383 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
384 *
385 * This function is probably reusable and may better get placed in a support
386 * library.
387 *
388 * We replace errornous fields by default TPS fields (the ones with value 0).
389 */
390static uint16_t compute_tps (struct dvb_frontend_parameters *p)
391{
392 struct dvb_ofdm_parameters *op = &p->u.ofdm;
393 uint16_t tps = 0;
394
395 switch (op->code_rate_HP) {
396 case FEC_2_3:
397 tps |= (1 << 7);
398 break;
399 case FEC_3_4:
400 tps |= (2 << 7);
401 break;
402 case FEC_5_6:
403 tps |= (3 << 7);
404 break;
405 case FEC_7_8:
406 tps |= (4 << 7);
407 break;
408 case FEC_1_2:
409 case FEC_AUTO:
410 default:
411 /* tps |= (0 << 7) */;
412 }
413
414 switch (op->code_rate_LP) {
415 case FEC_2_3:
416 tps |= (1 << 4);
417 break;
418 case FEC_3_4:
419 tps |= (2 << 4);
420 break;
421 case FEC_5_6:
422 tps |= (3 << 4);
423 break;
424 case FEC_7_8:
425 tps |= (4 << 4);
426 break;
427 case FEC_1_2:
428 case FEC_AUTO:
429 default:
430 /* tps |= (0 << 4) */;
431 }
432
433 switch (op->constellation) {
434 case QAM_16:
435 tps |= (1 << 13);
436 break;
437 case QAM_64:
438 tps |= (2 << 13);
439 break;
440 case QPSK:
441 default:
442 /* tps |= (0 << 13) */;
443 }
444
445 switch (op->transmission_mode) {
446 case TRANSMISSION_MODE_8K:
447 tps |= (1 << 0);
448 break;
449 case TRANSMISSION_MODE_2K:
450 default:
451 /* tps |= (0 << 0) */;
452 }
453
454 switch (op->guard_interval) {
455 case GUARD_INTERVAL_1_16:
456 tps |= (1 << 2);
457 break;
458 case GUARD_INTERVAL_1_8:
459 tps |= (2 << 2);
460 break;
461 case GUARD_INTERVAL_1_4:
462 tps |= (3 << 2);
463 break;
464 case GUARD_INTERVAL_1_32:
465 default:
466 /* tps |= (0 << 2) */;
467 }
468
469 switch (op->hierarchy_information) {
470 case HIERARCHY_1:
471 tps |= (1 << 10);
472 break;
473 case HIERARCHY_2:
474 tps |= (2 << 10);
475 break;
476 case HIERARCHY_4:
477 tps |= (3 << 10);
478 break;
479 case HIERARCHY_NONE:
480 default:
481 /* tps |= (0 << 10) */;
482 }
483
484 return tps;
485}
486
487static int cinergyt2_open (struct inode *inode, struct file *file)
488{
489 struct dvb_device *dvbdev = file->private_data;
490 struct cinergyt2 *cinergyt2 = dvbdev->priv;
475d5263 491 int err = -EAGAIN;
1da177e4 492
475d5263
JS		 493 if (cinergyt2->disconnect_pending)
494 goto out;
495 err = mutex_lock_interruptible(&cinergyt2->wq_sem);
496 if (err)
1e4597e8 497 goto out;
e4acba3c 498
475d5263
JS		 499 err = mutex_lock_interruptible(&cinergyt2->sem);
500 if (err)
1e4597e8 501 goto out_unlock1;
1da177e4 502
1e4597e8
ON		 503 if ((err = dvb_generic_open(inode, file)))
504 goto out_unlock2;
1da177e4
LT		 505
506 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
507 cinergyt2_sleep(cinergyt2, 0);
508 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
509 }
510
e4acba3c
DF		 511 atomic_inc(&cinergyt2->inuse);
512
1e4597e8 513out_unlock2:
3593cab5 514 mutex_unlock(&cinergyt2->sem);
1e4597e8
ON		 515out_unlock1:
516 mutex_unlock(&cinergyt2->wq_sem);
517out:
518 return err;
1da177e4
LT		 519}
520
e4acba3c
DF		 521static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
522{
77cc5319
MR		 523 dvb_net_release(&cinergyt2->dvbnet);
524 dvb_dmxdev_release(&cinergyt2->dmxdev);
525 dvb_dmx_release(&cinergyt2->demux);
e4acba3c
DF		 526 dvb_unregister_device(cinergyt2->fedev);
527 dvb_unregister_adapter(&cinergyt2->adapter);
528
529 cinergyt2_free_stream_urbs(cinergyt2);
530 kfree(cinergyt2);
531}
532
1da177e4
LT		 533static int cinergyt2_release (struct inode *inode, struct file *file)
534{
535 struct dvb_device *dvbdev = file->private_data;
536 struct cinergyt2 *cinergyt2 = dvbdev->priv;
537
1e4597e8 538 mutex_lock(&cinergyt2->wq_sem);
1da177e4 539
e4acba3c 540 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
1e4597e8
ON		 541 cancel_rearming_delayed_work(&cinergyt2->query_work);
542
543 mutex_lock(&cinergyt2->sem);
1da177e4 544 cinergyt2_sleep(cinergyt2, 1);
1e4597e8 545 mutex_unlock(&cinergyt2->sem);
1da177e4
LT		 546 }
547
1e4597e8 548 mutex_unlock(&cinergyt2->wq_sem);
1da177e4 549
e4acba3c
DF		 550 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
551 warn("delayed unregister in release");
552 cinergyt2_unregister(cinergyt2);
553 }
554
1da177e4
LT		 555 return dvb_generic_release(inode, file);
556}
557
558static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
559{
560 struct dvb_device *dvbdev = file->private_data;
561 struct cinergyt2 *cinergyt2 = dvbdev->priv;
b930e1d8 562 unsigned int mask = 0;
e4acba3c 563
475d5263
JS		 564 if (cinergyt2->disconnect_pending)
565 return -EAGAIN;
566 if (mutex_lock_interruptible(&cinergyt2->sem))
e4acba3c
DF		 567 return -ERESTARTSYS;
568
1da177e4 569 poll_wait(file, &cinergyt2->poll_wq, wait);
e4acba3c 570
b930e1d8 571 if (cinergyt2->pending_fe_events != 0)
fd174c67 572 mask |= (POLLIN | POLLRDNORM | POLLPRI);
774dd5d9 573
3593cab5 574 mutex_unlock(&cinergyt2->sem);
e4acba3c 575
b930e1d8 576 return mask;
1da177e4
LT		 577}
578
579
580static int cinergyt2_ioctl (struct inode *inode, struct file *file,
581 unsigned cmd, unsigned long arg)
582{
583 struct dvb_device *dvbdev = file->private_data;
584 struct cinergyt2 *cinergyt2 = dvbdev->priv;
585 struct dvbt_get_status_msg *stat = &cinergyt2->status;
586 fe_status_t status = 0;
587
588 switch (cmd) {
589 case FE_GET_INFO:
590 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
591 sizeof(struct dvb_frontend_info));
592
593 case FE_READ_STATUS:
594 if (0xffff - le16_to_cpu(stat->gain) > 30)
595 status |= FE_HAS_SIGNAL;
596 if (stat->lock_bits & (1 << 6))
597 status |= FE_HAS_LOCK;
598 if (stat->lock_bits & (1 << 5))
599 status |= FE_HAS_SYNC;
600 if (stat->lock_bits & (1 << 4))
601 status |= FE_HAS_CARRIER;
602 if (stat->lock_bits & (1 << 1))
603 status |= FE_HAS_VITERBI;
604
605 return copy_to_user((void __user*) arg, &status, sizeof(status));
606
607 case FE_READ_BER:
608 return put_user(le32_to_cpu(stat->viterbi_error_rate),
609 (__u32 __user *) arg);
610
611 case FE_READ_SIGNAL_STRENGTH:
612 return put_user(0xffff - le16_to_cpu(stat->gain),
613 (__u16 __user *) arg);
614
615 case FE_READ_SNR:
616 return put_user((stat->snr << 8) | stat->snr,
617 (__u16 __user *) arg);
618
619 case FE_READ_UNCORRECTED_BLOCKS:
2c3f11b2
SW		 620 {
621 uint32_t unc_count;
1da177e4 622
f34ec12a
AV		 623 if (mutex_lock_interruptible(&cinergyt2->sem))
624 return -ERESTARTSYS;
625 unc_count = cinergyt2->uncorrected_block_count;
626 cinergyt2->uncorrected_block_count = 0;
627 mutex_unlock(&cinergyt2->sem);
2c3f11b2
SW		 628
629 /* UNC are already converted to host byte order... */
630 return put_user(unc_count,(__u32 __user *) arg);
631 }
1da177e4
LT		 632 case FE_SET_FRONTEND:
633 {
634 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
635 struct dvb_frontend_parameters p;
636 int err;
637
638 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
639 return -EPERM;
640
641 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
642 return -EFAULT;
643
475d5263
JS		 644 if (cinergyt2->disconnect_pending)
645 return -EAGAIN;
646 if (mutex_lock_interruptible(&cinergyt2->sem))
1da177e4
LT		 647 return -ERESTARTSYS;
648
649 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
650 param->tps = cpu_to_le16(compute_tps(&p));
651 param->freq = cpu_to_le32(p.frequency / 1000);
652 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
653
654 stat->lock_bits = 0;
655 cinergyt2->pending_fe_events++;
656 wake_up_interruptible(&cinergyt2->poll_wq);
657
658 err = cinergyt2_command(cinergyt2,
659 (char *) param, sizeof(*param),
660 NULL, 0);
661
3593cab5 662 mutex_unlock(&cinergyt2->sem);
1da177e4
LT		 663
664 return (err < 0) ? err : 0;
665 }
666
667 case FE_GET_FRONTEND:
668 /**
669 * trivial to implement (see struct dvbt_get_status_msg).
670 * equivalent to FE_READ ioctls, but needs
671 * TPS -> linux-dvb parameter set conversion. Feel free
672 * to implement this and send us a patch if you need this
673 * functionality.
674 */
675 break;
676
677 case FE_GET_EVENT:
678 {
679 /**
680 * for now we only fill the status field. the parameters
681 * are trivial to fill as soon FE_GET_FRONTEND is done.
682 */
683 struct dvb_frontend_event __user *e = (void __user *) arg;
684 if (cinergyt2->pending_fe_events == 0) {
685 if (file->f_flags & O_NONBLOCK)
686 return -EWOULDBLOCK;
687 wait_event_interruptible(cinergyt2->poll_wq,
688 cinergyt2->pending_fe_events > 0);
689 }
690 cinergyt2->pending_fe_events = 0;
691 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
692 (unsigned long) &e->status);
693 }
694
695 default:
696 ;
697 }
698
699 return -EINVAL;
700}
701
702static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
703{
704 struct dvb_device *dvbdev = file->private_data;
705 struct cinergyt2 *cinergyt2 = dvbdev->priv;
706 int ret = 0;
707
708 lock_kernel();
709
710 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
711 ret = -EPERM;
712 goto bailout;
713 }
714
715 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
716 ret = -EINVAL;
717 goto bailout;
718 }
719
720 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
721 vma->vm_file = file;
722
723 ret = remap_pfn_range(vma, vma->vm_start,
724 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
725 vma->vm_end - vma->vm_start,
726 vma->vm_page_prot) ? -EAGAIN : 0;
727bailout:
728 unlock_kernel();
729 return ret;
730}
731
732static struct file_operations cinergyt2_fops = {
733 .owner = THIS_MODULE,
734 .ioctl = cinergyt2_ioctl,
735 .poll = cinergyt2_poll,
736 .open = cinergyt2_open,
737 .release = cinergyt2_release,
738 .mmap = cinergyt2_mmap
739};
740
741static struct dvb_device cinergyt2_fe_template = {
742 .users = ~0,
743 .writers = 1,
744 .readers = (~0)-1,
745 .fops = &cinergyt2_fops
746};
747
748#ifdef ENABLE_RC
b7df3910 749
c4028958 750static void cinergyt2_query_rc (struct work_struct *work)
1da177e4 751{
c4028958
DH		 752 struct cinergyt2 *cinergyt2 =
753 container_of(work, struct cinergyt2, rc_query_work.work);
6d78933c 754 char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
1da177e4 755 struct cinergyt2_rc_event rc_events[12];
6d78933c 756 int n, len, i;
1da177e4 757
3593cab5 758 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
1da177e4
LT		 759 return;
760
761 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
6d78933c
JS		 762 (char *) rc_events, sizeof(rc_events));
763 if (len < 0)
764 goto out;
765 if (len == 0) {
766 if (time_after(jiffies, cinergyt2->last_event_jiffies +
767 msecs_to_jiffies(150))) {
768 /* stop key repeat */
769 if (cinergyt2->rc_input_event != KEY_MAX) {
770 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
b7df3910 771 input_report_key(cinergyt2->rc_input_dev,
6d78933c 772 cinergyt2->rc_input_event, 0);
b07b4783 773 input_sync(cinergyt2->rc_input_dev);
6d78933c
JS		 774 cinergyt2->rc_input_event = KEY_MAX;
775 }
f34ec12a 776 cinergyt2->rc_last_code = cpu_to_le32(~0);
6d78933c
JS		 777 }
778 goto out;
779 }
780 cinergyt2->last_event_jiffies = jiffies;
1da177e4 781
6d78933c
JS		 782 for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
783 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
784 n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
38b32d62 785
1da177e4 786 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
f34ec12a 787 rc_events[n].value == cpu_to_le32(~0)) {
6d78933c 788 /* keyrepeat bit -> just repeat last rc_input_event */
1da177e4
LT		 789 } else {
790 cinergyt2->rc_input_event = KEY_MAX;
b7df3910 791 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
6d78933c
JS		 792 if (rc_keys[i + 0] == rc_events[n].type &&
793 rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
794 cinergyt2->rc_input_event = rc_keys[i + 2];
1da177e4
LT		 795 break;
796 }
797 }
798 }
799
800 if (cinergyt2->rc_input_event != KEY_MAX) {
6d78933c 801 if (rc_events[n].value == cinergyt2->rc_last_code &&
f34ec12a 802 cinergyt2->rc_last_code != cpu_to_le32(~0)) {
6d78933c
JS		 803 /* emit a key-up so the double event is recognized */
804 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
b7df3910 805 input_report_key(cinergyt2->rc_input_dev,
6d78933c
JS		 806 cinergyt2->rc_input_event, 0);
807 }
808 dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
b7df3910 809 input_report_key(cinergyt2->rc_input_dev,
6d78933c 810 cinergyt2->rc_input_event, 1);
b07b4783 811 input_sync(cinergyt2->rc_input_dev);
6d78933c 812 cinergyt2->rc_last_code = rc_events[n].value;
1da177e4
LT		 813 }
814 }
815
6d78933c 816out:
1da177e4
LT		 817 schedule_delayed_work(&cinergyt2->rc_query_work,
818 msecs_to_jiffies(RC_QUERY_INTERVAL));
819
3593cab5 820 mutex_unlock(&cinergyt2->sem);
1da177e4 821}
b7df3910
DT		 822
823static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
824{
825 struct input_dev *input_dev;
826 int i;
b07b4783 827 int err;
b7df3910 828
b07b4783 829 input_dev = input_allocate_device();
b7df3910
DT		 830 if (!input_dev)
831 return -ENOMEM;
832
833 usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
834 strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
835 cinergyt2->rc_input_event = KEY_MAX;
f34ec12a 836 cinergyt2->rc_last_code = cpu_to_le32(~0);
c4028958 837 INIT_DELAYED_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc);
b7df3910
DT		 838
839 input_dev->name = DRIVER_NAME " remote control";
840 input_dev->phys = cinergyt2->phys;
7b19ada2 841 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
db93a82f 842 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
b7df3910
DT		 843 set_bit(rc_keys[i + 2], input_dev->keybit);
844 input_dev->keycodesize = 0;
845 input_dev->keycodemax = 0;
ef7b8b72 846 input_dev->id.bustype = BUS_USB;
f34ec12a
AV		 847 input_dev->id.vendor = le16_to_cpu(cinergyt2->udev->descriptor.idVendor);
848 input_dev->id.product = le16_to_cpu(cinergyt2->udev->descriptor.idProduct);
ef7b8b72 849 input_dev->id.version = 1;
2c8a3a33 850 input_dev->dev.parent = &cinergyt2->udev->dev;
b7df3910 851
b07b4783
DT		 852 err = input_register_device(input_dev);
853 if (err) {
854 input_free_device(input_dev);
855 return err;
856 }
857
858 cinergyt2->rc_input_dev = input_dev;
b7df3910 859 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
7b5603e0
DM		 860
861 return 0;
b7df3910
DT		 862}
863
864static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
865{
1e4597e8 866 cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
b7df3910
DT		 867 input_unregister_device(cinergyt2->rc_input_dev);
868}
869
870static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
871{
1e4597e8 872 cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
b7df3910
DT		 873}
874
875static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
876{
877 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
878}
879
880#else
881
882static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
883static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
884static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
885static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
886
887#endif /* ENABLE_RC */
1da177e4 888
c4028958 889static void cinergyt2_query (struct work_struct *work)
1da177e4 890{
c4028958
DH		 891 struct cinergyt2 *cinergyt2 =
892 container_of(work, struct cinergyt2, query_work.work);
1da177e4
LT		 893 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
894 struct dvbt_get_status_msg *s = &cinergyt2->status;
895 uint8_t lock_bits;
1da177e4 896
3593cab5 897 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
1da177e4
LT		 898 return;
899
1da177e4
LT		 900 lock_bits = s->lock_bits;
901
902 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
903
f34ec12a
AV		 904 cinergyt2->uncorrected_block_count +=
905 le32_to_cpu(s->uncorrected_block_count);
1da177e4
LT		 906
907 if (lock_bits != s->lock_bits) {
908 wake_up_interruptible(&cinergyt2->poll_wq);
909 cinergyt2->pending_fe_events++;
910 }
911
912 schedule_delayed_work(&cinergyt2->query_work,
913 msecs_to_jiffies(QUERY_INTERVAL));
914
3593cab5 915 mutex_unlock(&cinergyt2->sem);
1da177e4
LT		 916}
917
918static int cinergyt2_probe (struct usb_interface *intf,
919 const struct usb_device_id *id)
920{
921 struct cinergyt2 *cinergyt2;
6d78933c 922 int err;
1da177e4 923
dd00cc48 924 if (!(cinergyt2 = kzalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
1da177e4
LT		 925 dprintk(1, "out of memory?!?\n");
926 return -ENOMEM;
927 }
928
1da177e4
LT		 929 usb_set_intfdata (intf, (void *) cinergyt2);
930
3593cab5 931 mutex_init(&cinergyt2->sem);
1e4597e8 932 mutex_init(&cinergyt2->wq_sem);
1da177e4 933 init_waitqueue_head (&cinergyt2->poll_wq);
c4028958 934 INIT_DELAYED_WORK(&cinergyt2->query_work, cinergyt2_query);
1da177e4
LT		 935
936 cinergyt2->udev = interface_to_usbdev(intf);
937 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
938
939 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
940 dprintk(1, "unable to allocate stream urbs\n");
941 kfree(cinergyt2);
942 return -ENOMEM;
943 }
944
78e92006
JG		 945 err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME,
946 THIS_MODULE, &cinergyt2->udev->dev,
947 adapter_nr);
948 if (err < 0) {
a064fad3
AQ		 949 kfree(cinergyt2);
950 return err;
951 }
1da177e4
LT		 952
953 cinergyt2->demux.priv = cinergyt2;
954 cinergyt2->demux.filternum = 256;
955 cinergyt2->demux.feednum = 256;
956 cinergyt2->demux.start_feed = cinergyt2_start_feed;
957 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
958 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
959 DMX_SECTION_FILTERING |
960 DMX_MEMORY_BASED_FILTERING;
961
962 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
963 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
964 goto bailout;
965 }
966
967 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
968 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
969 cinergyt2->dmxdev.capabilities = 0;
970
fdc53a6d 971 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
1da177e4
LT		 972 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
973 goto bailout;
974 }
975
fdc53a6d 976 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
1da177e4
LT		 977 dprintk(1, "dvb_net_init() failed!\n");
978
fdc53a6d 979 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
1da177e4
LT		 980 &cinergyt2_fe_template, cinergyt2,
981 DVB_DEVICE_FRONTEND);
982
b7df3910
DT		 983 err = cinergyt2_register_rc(cinergyt2);
984 if (err)
985 goto bailout;
1da177e4 986
1da177e4
LT		 987 return 0;
988
989bailout:
77cc5319 990 dvb_net_release(&cinergyt2->dvbnet);
1da177e4
LT		 991 dvb_dmxdev_release(&cinergyt2->dmxdev);
992 dvb_dmx_release(&cinergyt2->demux);
b7df3910
DT		 993 dvb_unregister_adapter(&cinergyt2->adapter);
994 cinergyt2_free_stream_urbs(cinergyt2);
1da177e4
LT		 995 kfree(cinergyt2);
996 return -ENOMEM;
997}
998
999static void cinergyt2_disconnect (struct usb_interface *intf)
1000{
1001 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1002
b7df3910 1003 cinergyt2_unregister_rc(cinergyt2);
1e4597e8 1004 cancel_rearming_delayed_work(&cinergyt2->query_work);
e4acba3c
DF		 1005 wake_up_interruptible(&cinergyt2->poll_wq);
1006
1da177e4 1007 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
e4acba3c 1008 cinergyt2->disconnect_pending = 1;
1da177e4 1009
e4acba3c
DF		 1010 if (!atomic_read(&cinergyt2->inuse))
1011 cinergyt2_unregister(cinergyt2);
1da177e4
LT		 1012}
1013
a2910689 1014static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
1da177e4
LT		 1015{
1016 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1017
475d5263
JS		 1018 if (cinergyt2->disconnect_pending)
1019 return -EAGAIN;
1020 if (mutex_lock_interruptible(&cinergyt2->wq_sem))
1da177e4
LT		 1021 return -ERESTARTSYS;
1022
9b7cc429
MCC		 1023 cinergyt2_suspend_rc(cinergyt2);
1024 cancel_rearming_delayed_work(&cinergyt2->query_work);
1e4597e8 1025
9b7cc429
MCC		 1026 mutex_lock(&cinergyt2->sem);
1027 if (cinergyt2->streaming)
1028 cinergyt2_stop_stream_xfer(cinergyt2);
1029 cinergyt2_sleep(cinergyt2, 1);
1030 mutex_unlock(&cinergyt2->sem);
1da177e4 1031
1597f1f6
ON		 1032 mutex_unlock(&cinergyt2->wq_sem);
1033
1da177e4
LT		 1034 return 0;
1035}
1036
1037static int cinergyt2_resume (struct usb_interface *intf)
1038{
1039 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1040 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
475d5263 1041 int err = -EAGAIN;
1da177e4 1042
475d5263
JS		 1043 if (cinergyt2->disconnect_pending)
1044 goto out;
1045 err = mutex_lock_interruptible(&cinergyt2->wq_sem);
1046 if (err)
1e4597e8
ON		 1047 goto out;
1048
475d5263
JS		 1049 err = mutex_lock_interruptible(&cinergyt2->sem);
1050 if (err)
1e4597e8
ON		 1051 goto out_unlock1;
1052
1da177e4
LT		 1053 if (!cinergyt2->sleeping) {
1054 cinergyt2_sleep(cinergyt2, 0);
1055 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1056 if (cinergyt2->streaming)
1057 cinergyt2_start_stream_xfer(cinergyt2);
1058 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1059 }
1060
b7df3910
DT		 1061 cinergyt2_resume_rc(cinergyt2);
1062
3593cab5 1063 mutex_unlock(&cinergyt2->sem);
1e4597e8
ON		 1064out_unlock1:
1065 mutex_unlock(&cinergyt2->wq_sem);
1066out:
1067 return err;
1da177e4
LT		 1068}
1069
1070static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1071 { USB_DEVICE(0x0ccd, 0x0038) },
1072 { 0 }
1073};
1074
1075MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1076
1077static struct usb_driver cinergyt2_driver = {
1da177e4
LT		 1078 .name = "cinergyT2",
1079 .probe = cinergyt2_probe,
1080 .disconnect = cinergyt2_disconnect,
1081 .suspend = cinergyt2_suspend,
1082 .resume = cinergyt2_resume,
1083 .id_table = cinergyt2_table
1084};
1085
1086static int __init cinergyt2_init (void)
1087{
1088 int err;
1089
1090 if ((err = usb_register(&cinergyt2_driver)) < 0)
1091 dprintk(1, "usb_register() failed! (err %i)\n", err);
1092
1093 return err;
1094}
1095
1096static void __exit cinergyt2_exit (void)
1097{
1098 usb_deregister(&cinergyt2_driver);
1099}
1100
1101module_init (cinergyt2_init);
1102module_exit (cinergyt2_exit);
1103
1104MODULE_LICENSE("GPL");
1105MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
Linux kernel - Deliverables
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