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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6/kmemtrace.git] / drivers / media / dvb / cinergyT2 / cinergyT2.c
blob8458ff3f351e265b15affc9f71541b9f7802503c
1 /*
2 * TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
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
25 #include <linux/init.h>
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/usb.h>
29 #include <linux/pci.h>
30 #include <linux/input.h>
31 #include <linux/dvb/frontend.h>
32 #include <linux/mutex.h>
33
34 #include "dmxdev.h"
35 #include "dvb_demux.h"
36 #include "dvb_net.h"
37
38 #ifdef CONFIG_DVB_CINERGYT2_TUNING
39 #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
40 #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
41 #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
42 #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
43 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
44 #define ENABLE_RC (1)
45 #endif
46 #else
47 #define STREAM_URB_COUNT (32)
48 #define STREAM_BUF_SIZE (512) /* bytes */
49 #define ENABLE_RC (1)
50 #define RC_QUERY_INTERVAL (50) /* milliseconds */
51 #define QUERY_INTERVAL (333) /* milliseconds */
52 #endif
53
54 #define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
55
56 static int debug;
57 module_param_named(debug, debug, int, 0644);
58 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
59
60 #define dprintk(level, args...) \
61 do { \
62 if ((debug & level)) { \
63 printk("%s: %s(): ", KBUILD_MODNAME, \
64 __FUNCTION__); \
65 printk(args); } \
66 } while (0)
67
68 enum cinergyt2_ep1_cmd {
69 CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
70 CINERGYT2_EP1_PID_SETUP = 0x02,
71 CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
72 CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
73 CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
74 CINERGYT2_EP1_START_SCAN = 0x06,
75 CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
76 CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
77 CINERGYT2_EP1_SLEEP_MODE = 0x09
78 };
79
80 struct dvbt_set_parameters_msg {
81 uint8_t cmd;
82 uint32_t freq;
83 uint8_t bandwidth;
84 uint16_t tps;
85 uint8_t flags;
86 } __attribute__((packed));
87
88 struct dvbt_get_status_msg {
89 uint32_t freq;
90 uint8_t bandwidth;
91 uint16_t tps;
92 uint8_t flags;
93 uint16_t gain;
94 uint8_t snr;
95 uint32_t viterbi_error_rate;
96 uint32_t rs_error_rate;
97 uint32_t uncorrected_block_count;
98 uint8_t lock_bits;
99 uint8_t prev_lock_bits;
100 } __attribute__((packed));
101
102 static struct dvb_frontend_info cinergyt2_fe_info = {
103 .name = DRIVER_NAME,
104 .type = FE_OFDM,
105 .frequency_min = 174000000,
106 .frequency_max = 862000000,
107 .frequency_stepsize = 166667,
108 .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
109 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
110 FE_CAN_FEC_AUTO |
111 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
112 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
113 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
114 };
115
116 struct cinergyt2 {
117 struct dvb_demux demux;
118 struct usb_device *udev;
119 struct mutex sem;
120 struct dvb_adapter adapter;
121 struct dvb_device *fedev;
122 struct dmxdev dmxdev;
123 struct dvb_net dvbnet;
124
125 int streaming;
126 int sleeping;
127
128 struct dvbt_set_parameters_msg param;
129 struct dvbt_get_status_msg status;
130 struct delayed_work query_work;
131
132 wait_queue_head_t poll_wq;
133 int pending_fe_events;
134 int disconnect_pending;
135 atomic_t inuse;
136
137 void *streambuf;
138 dma_addr_t streambuf_dmahandle;
139 struct urb *stream_urb [STREAM_URB_COUNT];
140
141 #ifdef ENABLE_RC
142 struct input_dev *rc_input_dev;
143 char phys[64];
144 struct delayed_work rc_query_work;
145 int rc_input_event;
146 u32 rc_last_code;
147 unsigned long last_event_jiffies;
148 #endif
149 };
150
151 enum {
152 CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
153 CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
154 CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
155 };
156
157 struct cinergyt2_rc_event {
158 char type;
159 uint32_t value;
160 } __attribute__((packed));
161
162 static const uint32_t rc_keys[] = {
163 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
164 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
165 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
166 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
167 CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
168 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
169 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
170 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
171 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
172 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
173 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
174 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
175 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
176 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
177 CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
178 CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
179 CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
180 CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
181 CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
182 CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
183 CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
184 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
185 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
186 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
187 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
188 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
189 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
190 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
191 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
192 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
193 CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
194 CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
195 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
196 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
197 CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
198 CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
199 CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
200 };
201
202 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
203 char *send_buf, int send_buf_len,
204 char *recv_buf, int recv_buf_len)
205 {
206 int actual_len;
207 char dummy;
208 int ret;
209
210 ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
211 send_buf, send_buf_len, &actual_len, 1000);
212
213 if (ret)
214 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
215
216 if (!recv_buf)
217 recv_buf = &dummy;
218
219 ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
220 recv_buf, recv_buf_len, &actual_len, 1000);
221
222 if (ret)
223 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
224
225 return ret ? ret : actual_len;
226 }
227
228 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
229 {
230 char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
231 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
232 }
233
234 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
235 {
236 char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
237 cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
238 cinergyt2->sleeping = sleep;
239 }
240
241 static void cinergyt2_stream_irq (struct urb *urb);
242
243 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
244 {
245 int err;
246
247 usb_fill_bulk_urb(urb,
248 cinergyt2->udev,
249 usb_rcvbulkpipe(cinergyt2->udev, 0x2),
250 urb->transfer_buffer,
251 STREAM_BUF_SIZE,
252 cinergyt2_stream_irq,
253 cinergyt2);
254
255 if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
256 dprintk(1, "urb submission failed (err = %i)!\n", err);
257
258 return err;
259 }
260
261 static void cinergyt2_stream_irq (struct urb *urb)
262 {
263 struct cinergyt2 *cinergyt2 = urb->context;
264
265 if (urb->actual_length > 0)
266 dvb_dmx_swfilter(&cinergyt2->demux,
267 urb->transfer_buffer, urb->actual_length);
268
269 if (cinergyt2->streaming)
270 cinergyt2_submit_stream_urb(cinergyt2, urb);
271 }
272
273 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
274 {
275 int i;
276
277 for (i=0; i<STREAM_URB_COUNT; i++)
278 usb_free_urb(cinergyt2->stream_urb[i]);
279
280 usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
281 cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
282 }
283
284 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
285 {
286 int i;
287
288 cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
289 SLAB_KERNEL, &cinergyt2->streambuf_dmahandle);
290 if (!cinergyt2->streambuf) {
291 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
292 return -ENOMEM;
293 }
294
295 memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
296
297 for (i=0; i<STREAM_URB_COUNT; i++) {
298 struct urb *urb;
299
300 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
301 dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
302 cinergyt2_free_stream_urbs(cinergyt2);
303 return -ENOMEM;
304 }
305
306 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
307 urb->transfer_buffer_length = STREAM_BUF_SIZE;
308
309 cinergyt2->stream_urb[i] = urb;
310 }
311
312 return 0;
313 }
314
315 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
316 {
317 int i;
318
319 cinergyt2_control_stream_transfer(cinergyt2, 0);
320
321 for (i=0; i<STREAM_URB_COUNT; i++)
322 usb_kill_urb(cinergyt2->stream_urb[i]);
323 }
324
325 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
326 {
327 int i, err;
328
329 for (i=0; i<STREAM_URB_COUNT; i++) {
330 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
331 cinergyt2_stop_stream_xfer(cinergyt2);
332 dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
333 return err;
334 }
335 }
336
337 cinergyt2_control_stream_transfer(cinergyt2, 1);
338 return 0;
339 }
340
341 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
342 {
343 struct dvb_demux *demux = dvbdmxfeed->demux;
344 struct cinergyt2 *cinergyt2 = demux->priv;
345
346 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
347 return -ERESTARTSYS;
348
349 if (cinergyt2->streaming == 0)
350 cinergyt2_start_stream_xfer(cinergyt2);
351
352 cinergyt2->streaming++;
353 mutex_unlock(&cinergyt2->sem);
354 return 0;
355 }
356
357 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
358 {
359 struct dvb_demux *demux = dvbdmxfeed->demux;
360 struct cinergyt2 *cinergyt2 = demux->priv;
361
362 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
363 return -ERESTARTSYS;
364
365 if (--cinergyt2->streaming == 0)
366 cinergyt2_stop_stream_xfer(cinergyt2);
367
368 mutex_unlock(&cinergyt2->sem);
369 return 0;
370 }
371
372 /**
373 * convert linux-dvb frontend parameter set into TPS.
374 * See ETSI ETS-300744, section 4.6.2, table 9 for details.
375 *
376 * This function is probably reusable and may better get placed in a support
377 * library.
378 *
379 * We replace errornous fields by default TPS fields (the ones with value 0).
380 */
381 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
382 {
383 struct dvb_ofdm_parameters *op = &p->u.ofdm;
384 uint16_t tps = 0;
385
386 switch (op->code_rate_HP) {
387 case FEC_2_3:
388 tps |= (1 << 7);
389 break;
390 case FEC_3_4:
391 tps |= (2 << 7);
392 break;
393 case FEC_5_6:
394 tps |= (3 << 7);
395 break;
396 case FEC_7_8:
397 tps |= (4 << 7);
398 break;
399 case FEC_1_2:
400 case FEC_AUTO:
401 default:
402 /* tps |= (0 << 7) */;
403 }
404
405 switch (op->code_rate_LP) {
406 case FEC_2_3:
407 tps |= (1 << 4);
408 break;
409 case FEC_3_4:
410 tps |= (2 << 4);
411 break;
412 case FEC_5_6:
413 tps |= (3 << 4);
414 break;
415 case FEC_7_8:
416 tps |= (4 << 4);
417 break;
418 case FEC_1_2:
419 case FEC_AUTO:
420 default:
421 /* tps |= (0 << 4) */;
422 }
423
424 switch (op->constellation) {
425 case QAM_16:
426 tps |= (1 << 13);
427 break;
428 case QAM_64:
429 tps |= (2 << 13);
430 break;
431 case QPSK:
432 default:
433 /* tps |= (0 << 13) */;
434 }
435
436 switch (op->transmission_mode) {
437 case TRANSMISSION_MODE_8K:
438 tps |= (1 << 0);
439 break;
440 case TRANSMISSION_MODE_2K:
441 default:
442 /* tps |= (0 << 0) */;
443 }
444
445 switch (op->guard_interval) {
446 case GUARD_INTERVAL_1_16:
447 tps |= (1 << 2);
448 break;
449 case GUARD_INTERVAL_1_8:
450 tps |= (2 << 2);
451 break;
452 case GUARD_INTERVAL_1_4:
453 tps |= (3 << 2);
454 break;
455 case GUARD_INTERVAL_1_32:
456 default:
457 /* tps |= (0 << 2) */;
458 }
459
460 switch (op->hierarchy_information) {
461 case HIERARCHY_1:
462 tps |= (1 << 10);
463 break;
464 case HIERARCHY_2:
465 tps |= (2 << 10);
466 break;
467 case HIERARCHY_4:
468 tps |= (3 << 10);
469 break;
470 case HIERARCHY_NONE:
471 default:
472 /* tps |= (0 << 10) */;
473 }
474
475 return tps;
476 }
477
478 static int cinergyt2_open (struct inode *inode, struct file *file)
479 {
480 struct dvb_device *dvbdev = file->private_data;
481 struct cinergyt2 *cinergyt2 = dvbdev->priv;
482 int err = -ERESTARTSYS;
483
484 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
485 return -ERESTARTSYS;
486
487 if ((err = dvb_generic_open(inode, file))) {
488 mutex_unlock(&cinergyt2->sem);
489 return err;
490 }
491
492
493 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
494 cinergyt2_sleep(cinergyt2, 0);
495 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
496 }
497
498 atomic_inc(&cinergyt2->inuse);
499
500 mutex_unlock(&cinergyt2->sem);
501 return 0;
502 }
503
504 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
505 {
506 dvb_net_release(&cinergyt2->dvbnet);
507 dvb_dmxdev_release(&cinergyt2->dmxdev);
508 dvb_dmx_release(&cinergyt2->demux);
509 dvb_unregister_device(cinergyt2->fedev);
510 dvb_unregister_adapter(&cinergyt2->adapter);
511
512 cinergyt2_free_stream_urbs(cinergyt2);
513 kfree(cinergyt2);
514 }
515
516 static int cinergyt2_release (struct inode *inode, struct file *file)
517 {
518 struct dvb_device *dvbdev = file->private_data;
519 struct cinergyt2 *cinergyt2 = dvbdev->priv;
520
521 if (mutex_lock_interruptible(&cinergyt2->sem))
522 return -ERESTARTSYS;
523
524 if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
525 cancel_delayed_work(&cinergyt2->query_work);
526 flush_scheduled_work();
527 cinergyt2_sleep(cinergyt2, 1);
528 }
529
530 mutex_unlock(&cinergyt2->sem);
531
532 if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
533 warn("delayed unregister in release");
534 cinergyt2_unregister(cinergyt2);
535 }
536
537 return dvb_generic_release(inode, file);
538 }
539
540 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
541 {
542 struct dvb_device *dvbdev = file->private_data;
543 struct cinergyt2 *cinergyt2 = dvbdev->priv;
544 unsigned int mask = 0;
545
546 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
547 return -ERESTARTSYS;
548
549 poll_wait(file, &cinergyt2->poll_wq, wait);
550
551 if (cinergyt2->pending_fe_events != 0)
552 mask |= (POLLIN | POLLRDNORM | POLLPRI);
553
554 mutex_unlock(&cinergyt2->sem);
555
556 return mask;
557 }
558
559
560 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
561 unsigned cmd, unsigned long arg)
562 {
563 struct dvb_device *dvbdev = file->private_data;
564 struct cinergyt2 *cinergyt2 = dvbdev->priv;
565 struct dvbt_get_status_msg *stat = &cinergyt2->status;
566 fe_status_t status = 0;
567
568 switch (cmd) {
569 case FE_GET_INFO:
570 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
571 sizeof(struct dvb_frontend_info));
572
573 case FE_READ_STATUS:
574 if (0xffff - le16_to_cpu(stat->gain) > 30)
575 status |= FE_HAS_SIGNAL;
576 if (stat->lock_bits & (1 << 6))
577 status |= FE_HAS_LOCK;
578 if (stat->lock_bits & (1 << 5))
579 status |= FE_HAS_SYNC;
580 if (stat->lock_bits & (1 << 4))
581 status |= FE_HAS_CARRIER;
582 if (stat->lock_bits & (1 << 1))
583 status |= FE_HAS_VITERBI;
584
585 return copy_to_user((void __user*) arg, &status, sizeof(status));
586
587 case FE_READ_BER:
588 return put_user(le32_to_cpu(stat->viterbi_error_rate),
589 (__u32 __user *) arg);
590
591 case FE_READ_SIGNAL_STRENGTH:
592 return put_user(0xffff - le16_to_cpu(stat->gain),
593 (__u16 __user *) arg);
594
595 case FE_READ_SNR:
596 return put_user((stat->snr << 8) | stat->snr,
597 (__u16 __user *) arg);
598
599 case FE_READ_UNCORRECTED_BLOCKS:
600 {
601 uint32_t unc_count;
602
603 unc_count = stat->uncorrected_block_count;
604 stat->uncorrected_block_count = 0;
605
606 /* UNC are already converted to host byte order... */
607 return put_user(unc_count,(__u32 __user *) arg);
608 }
609 case FE_SET_FRONTEND:
610 {
611 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
612 struct dvb_frontend_parameters p;
613 int err;
614
615 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
616 return -EPERM;
617
618 if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
619 return -EFAULT;
620
621 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
622 return -ERESTARTSYS;
623
624 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
625 param->tps = cpu_to_le16(compute_tps(&p));
626 param->freq = cpu_to_le32(p.frequency / 1000);
627 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
628
629 stat->lock_bits = 0;
630 cinergyt2->pending_fe_events++;
631 wake_up_interruptible(&cinergyt2->poll_wq);
632
633 err = cinergyt2_command(cinergyt2,
634 (char *) param, sizeof(*param),
635 NULL, 0);
636
637 mutex_unlock(&cinergyt2->sem);
638
639 return (err < 0) ? err : 0;
640 }
641
642 case FE_GET_FRONTEND:
643 /**
644 * trivial to implement (see struct dvbt_get_status_msg).
645 * equivalent to FE_READ ioctls, but needs
646 * TPS -> linux-dvb parameter set conversion. Feel free
647 * to implement this and send us a patch if you need this
648 * functionality.
649 */
650 break;
651
652 case FE_GET_EVENT:
653 {
654 /**
655 * for now we only fill the status field. the parameters
656 * are trivial to fill as soon FE_GET_FRONTEND is done.
657 */
658 struct dvb_frontend_event __user *e = (void __user *) arg;
659 if (cinergyt2->pending_fe_events == 0) {
660 if (file->f_flags & O_NONBLOCK)
661 return -EWOULDBLOCK;
662 wait_event_interruptible(cinergyt2->poll_wq,
663 cinergyt2->pending_fe_events > 0);
664 }
665 cinergyt2->pending_fe_events = 0;
666 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
667 (unsigned long) &e->status);
668 }
669
670 default:
671 ;
672 }
673
674 return -EINVAL;
675 }
676
677 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
678 {
679 struct dvb_device *dvbdev = file->private_data;
680 struct cinergyt2 *cinergyt2 = dvbdev->priv;
681 int ret = 0;
682
683 lock_kernel();
684
685 if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
686 ret = -EPERM;
687 goto bailout;
688 }
689
690 if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
691 ret = -EINVAL;
692 goto bailout;
693 }
694
695 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
696 vma->vm_file = file;
697
698 ret = remap_pfn_range(vma, vma->vm_start,
699 virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
700 vma->vm_end - vma->vm_start,
701 vma->vm_page_prot) ? -EAGAIN : 0;
702 bailout:
703 unlock_kernel();
704 return ret;
705 }
706
707 static struct file_operations cinergyt2_fops = {
708 .owner = THIS_MODULE,
709 .ioctl = cinergyt2_ioctl,
710 .poll = cinergyt2_poll,
711 .open = cinergyt2_open,
712 .release = cinergyt2_release,
713 .mmap = cinergyt2_mmap
714 };
715
716 static struct dvb_device cinergyt2_fe_template = {
717 .users = ~0,
718 .writers = 1,
719 .readers = (~0)-1,
720 .fops = &cinergyt2_fops
721 };
722
723 #ifdef ENABLE_RC
724
725 static void cinergyt2_query_rc (struct work_struct *work)
726 {
727 struct cinergyt2 *cinergyt2 =
728 container_of(work, struct cinergyt2, rc_query_work.work);
729 char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
730 struct cinergyt2_rc_event rc_events[12];
731 int n, len, i;
732
733 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
734 return;
735
736 len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
737 (char *) rc_events, sizeof(rc_events));
738 if (len < 0)
739 goto out;
740 if (len == 0) {
741 if (time_after(jiffies, cinergyt2->last_event_jiffies +
742 msecs_to_jiffies(150))) {
743 /* stop key repeat */
744 if (cinergyt2->rc_input_event != KEY_MAX) {
745 dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
746 input_report_key(cinergyt2->rc_input_dev,
747 cinergyt2->rc_input_event, 0);
748 cinergyt2->rc_input_event = KEY_MAX;
749 }
750 cinergyt2->rc_last_code = ~0;
751 }
752 goto out;
753 }
754 cinergyt2->last_event_jiffies = jiffies;
755
756 for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
757 dprintk(1, "rc_events[%d].value = %x, type=%x\n",
758 n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
759
760 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
761 rc_events[n].value == ~0) {
762 /* keyrepeat bit -> just repeat last rc_input_event */
763 } else {
764 cinergyt2->rc_input_event = KEY_MAX;
765 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
766 if (rc_keys[i + 0] == rc_events[n].type &&
767 rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
768 cinergyt2->rc_input_event = rc_keys[i + 2];
769 break;
770 }
771 }
772 }
773
774 if (cinergyt2->rc_input_event != KEY_MAX) {
775 if (rc_events[n].value == cinergyt2->rc_last_code &&
776 cinergyt2->rc_last_code != ~0) {
777 /* emit a key-up so the double event is recognized */
778 dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
779 input_report_key(cinergyt2->rc_input_dev,
780 cinergyt2->rc_input_event, 0);
781 }
782 dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
783 input_report_key(cinergyt2->rc_input_dev,
784 cinergyt2->rc_input_event, 1);
785 cinergyt2->rc_last_code = rc_events[n].value;
786 }
787 }
788
789 out:
790 schedule_delayed_work(&cinergyt2->rc_query_work,
791 msecs_to_jiffies(RC_QUERY_INTERVAL));
792
793 mutex_unlock(&cinergyt2->sem);
794 }
795
796 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
797 {
798 struct input_dev *input_dev;
799 int i;
800
801 cinergyt2->rc_input_dev = input_dev = input_allocate_device();
802 if (!input_dev)
803 return -ENOMEM;
804
805 usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
806 strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
807 cinergyt2->rc_input_event = KEY_MAX;
808 cinergyt2->rc_last_code = ~0;
809 INIT_DELAYED_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc);
810
811 input_dev->name = DRIVER_NAME " remote control";
812 input_dev->phys = cinergyt2->phys;
813 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
814 for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
815 set_bit(rc_keys[i + 2], input_dev->keybit);
816 input_dev->keycodesize = 0;
817 input_dev->keycodemax = 0;
818
819 input_register_device(cinergyt2->rc_input_dev);
820 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
821
822 return 0;
823 }
824
825 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
826 {
827 cancel_delayed_work(&cinergyt2->rc_query_work);
828 input_unregister_device(cinergyt2->rc_input_dev);
829 }
830
831 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
832 {
833 cancel_delayed_work(&cinergyt2->rc_query_work);
834 }
835
836 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
837 {
838 schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
839 }
840
841 #else
842
843 static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
844 static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
845 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
846 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
847
848 #endif /* ENABLE_RC */
849
850 static void cinergyt2_query (struct work_struct *work)
851 {
852 struct cinergyt2 *cinergyt2 =
853 container_of(work, struct cinergyt2, query_work.work);
854 char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
855 struct dvbt_get_status_msg *s = &cinergyt2->status;
856 uint8_t lock_bits;
857 uint32_t unc;
858
859 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
860 return;
861
862 unc = s->uncorrected_block_count;
863 lock_bits = s->lock_bits;
864
865 cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
866
867 unc += le32_to_cpu(s->uncorrected_block_count);
868 s->uncorrected_block_count = unc;
869
870 if (lock_bits != s->lock_bits) {
871 wake_up_interruptible(&cinergyt2->poll_wq);
872 cinergyt2->pending_fe_events++;
873 }
874
875 schedule_delayed_work(&cinergyt2->query_work,
876 msecs_to_jiffies(QUERY_INTERVAL));
877
878 mutex_unlock(&cinergyt2->sem);
879 }
880
881 static int cinergyt2_probe (struct usb_interface *intf,
882 const struct usb_device_id *id)
883 {
884 struct cinergyt2 *cinergyt2;
885 int err;
886
887 if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
888 dprintk(1, "out of memory?!?\n");
889 return -ENOMEM;
890 }
891
892 memset (cinergyt2, 0, sizeof (struct cinergyt2));
893 usb_set_intfdata (intf, (void *) cinergyt2);
894
895 mutex_init(&cinergyt2->sem);
896 init_waitqueue_head (&cinergyt2->poll_wq);
897 INIT_DELAYED_WORK(&cinergyt2->query_work, cinergyt2_query);
898
899 cinergyt2->udev = interface_to_usbdev(intf);
900 cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
901
902 if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
903 dprintk(1, "unable to allocate stream urbs\n");
904 kfree(cinergyt2);
905 return -ENOMEM;
906 }
907
908 if ((err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE, &cinergyt2->udev->dev)) < 0) {
909 kfree(cinergyt2);
910 return err;
911 }
912
913 cinergyt2->demux.priv = cinergyt2;
914 cinergyt2->demux.filternum = 256;
915 cinergyt2->demux.feednum = 256;
916 cinergyt2->demux.start_feed = cinergyt2_start_feed;
917 cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
918 cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
919 DMX_SECTION_FILTERING |
920 DMX_MEMORY_BASED_FILTERING;
921
922 if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
923 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
924 goto bailout;
925 }
926
927 cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
928 cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
929 cinergyt2->dmxdev.capabilities = 0;
930
931 if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
932 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
933 goto bailout;
934 }
935
936 if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
937 dprintk(1, "dvb_net_init() failed!\n");
938
939 dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
940 &cinergyt2_fe_template, cinergyt2,
941 DVB_DEVICE_FRONTEND);
942
943 err = cinergyt2_register_rc(cinergyt2);
944 if (err)
945 goto bailout;
946
947 return 0;
948
949 bailout:
950 dvb_net_release(&cinergyt2->dvbnet);
951 dvb_dmxdev_release(&cinergyt2->dmxdev);
952 dvb_dmx_release(&cinergyt2->demux);
953 dvb_unregister_adapter(&cinergyt2->adapter);
954 cinergyt2_free_stream_urbs(cinergyt2);
955 kfree(cinergyt2);
956 return -ENOMEM;
957 }
958
959 static void cinergyt2_disconnect (struct usb_interface *intf)
960 {
961 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
962
963 flush_scheduled_work();
964
965 cinergyt2_unregister_rc(cinergyt2);
966
967 cancel_delayed_work(&cinergyt2->query_work);
968 wake_up_interruptible(&cinergyt2->poll_wq);
969
970 cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
971 cinergyt2->disconnect_pending = 1;
972
973 if (!atomic_read(&cinergyt2->inuse))
974 cinergyt2_unregister(cinergyt2);
975 }
976
977 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
978 {
979 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
980
981 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
982 return -ERESTARTSYS;
983
984 if (1) {
985 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
986
987 cinergyt2_suspend_rc(cinergyt2);
988 cancel_delayed_work(&cinergyt2->query_work);
989 if (cinergyt2->streaming)
990 cinergyt2_stop_stream_xfer(cinergyt2);
991 flush_scheduled_work();
992 cinergyt2_sleep(cinergyt2, 1);
993 }
994
995 mutex_unlock(&cinergyt2->sem);
996 return 0;
997 }
998
999 static int cinergyt2_resume (struct usb_interface *intf)
1000 {
1001 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
1002 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
1003
1004 if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
1005 return -ERESTARTSYS;
1006
1007 if (!cinergyt2->sleeping) {
1008 cinergyt2_sleep(cinergyt2, 0);
1009 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
1010 if (cinergyt2->streaming)
1011 cinergyt2_start_stream_xfer(cinergyt2);
1012 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
1013 }
1014
1015 cinergyt2_resume_rc(cinergyt2);
1016
1017 mutex_unlock(&cinergyt2->sem);
1018 return 0;
1019 }
1020
1021 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
1022 { USB_DEVICE(0x0ccd, 0x0038) },
1023 { 0 }
1024 };
1025
1026 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
1027
1028 static struct usb_driver cinergyt2_driver = {
1029 .name = "cinergyT2",
1030 .probe = cinergyt2_probe,
1031 .disconnect = cinergyt2_disconnect,
1032 .suspend = cinergyt2_suspend,
1033 .resume = cinergyt2_resume,
1034 .id_table = cinergyt2_table
1035 };
1036
1037 static int __init cinergyt2_init (void)
1038 {
1039 int err;
1040
1041 if ((err = usb_register(&cinergyt2_driver)) < 0)
1042 dprintk(1, "usb_register() failed! (err %i)\n", err);
1043
1044 return err;
1045 }
1046
1047 static void __exit cinergyt2_exit (void)
1048 {
1049 usb_deregister(&cinergyt2_driver);
1050 }
1051
1052 module_init (cinergyt2_init);
1053 module_exit (cinergyt2_exit);
1054
1055 MODULE_LICENSE("GPL");
1056 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
kmemtrace - Kernel memory tracer