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V4L/DVB (7538): Adds selectable adapter numbers as per module option
[deliverable/linux.git] / drivers / media / dvb / ttusb-dec / ttusb_dec.c
1 /*
2 * TTUSB DEC Driver
3 *
4 * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org>
5 * IR support by Peter Beutner <p.beutner@gmx.net>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 *
21 */
22
23 #include <linux/list.h>
24 #include <linux/module.h>
25 #include <linux/pci.h>
26 #include <linux/slab.h>
27 #include <linux/spinlock.h>
28 #include <linux/usb.h>
29 #include <linux/interrupt.h>
30 #include <linux/firmware.h>
31 #include <linux/crc32.h>
32 #include <linux/init.h>
33 #include <linux/input.h>
34
35 #include <linux/mutex.h>
36
37 #include "dmxdev.h"
38 #include "dvb_demux.h"
39 #include "dvb_filter.h"
40 #include "dvb_frontend.h"
41 #include "dvb_net.h"
42 #include "ttusbdecfe.h"
43
44 static int debug;
45 static int output_pva;
46 static int enable_rc;
47
48 module_param(debug, int, 0644);
49 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
50 module_param(output_pva, int, 0444);
51 MODULE_PARM_DESC(output_pva, "Output PVA from dvr device (default:off)");
52 module_param(enable_rc, int, 0644);
53 MODULE_PARM_DESC(enable_rc, "Turn on/off IR remote control(default: off)");
54
55 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
56
57 #define dprintk if (debug) printk
58
59 #define DRIVER_NAME "TechnoTrend/Hauppauge DEC USB"
60
61 #define COMMAND_PIPE 0x03
62 #define RESULT_PIPE 0x04
63 #define IN_PIPE 0x08
64 #define OUT_PIPE 0x07
65 #define IRQ_PIPE 0x0A
66
67 #define COMMAND_PACKET_SIZE 0x3c
68 #define ARM_PACKET_SIZE 0x1000
69 #define IRQ_PACKET_SIZE 0x8
70
71 #define ISO_BUF_COUNT 0x04
72 #define FRAMES_PER_ISO_BUF 0x04
73 #define ISO_FRAME_SIZE 0x0380
74
75 #define MAX_PVA_LENGTH 6144
76
77 enum ttusb_dec_model {
78 TTUSB_DEC2000T,
79 TTUSB_DEC2540T,
80 TTUSB_DEC3000S
81 };
82
83 enum ttusb_dec_packet_type {
84 TTUSB_DEC_PACKET_PVA,
85 TTUSB_DEC_PACKET_SECTION,
86 TTUSB_DEC_PACKET_EMPTY
87 };
88
89 enum ttusb_dec_interface {
90 TTUSB_DEC_INTERFACE_INITIAL,
91 TTUSB_DEC_INTERFACE_IN,
92 TTUSB_DEC_INTERFACE_OUT
93 };
94
95 struct ttusb_dec {
96 enum ttusb_dec_model model;
97 char *model_name;
98 char *firmware_name;
99 int can_playback;
100
101 /* DVB bits */
102 struct dvb_adapter adapter;
103 struct dmxdev dmxdev;
104 struct dvb_demux demux;
105 struct dmx_frontend frontend;
106 struct dvb_net dvb_net;
107 struct dvb_frontend* fe;
108
109 u16 pid[DMX_PES_OTHER];
110
111 /* USB bits */
112 struct usb_device *udev;
113 u8 trans_count;
114 unsigned int command_pipe;
115 unsigned int result_pipe;
116 unsigned int in_pipe;
117 unsigned int out_pipe;
118 unsigned int irq_pipe;
119 enum ttusb_dec_interface interface;
120 struct mutex usb_mutex;
121
122 void *irq_buffer;
123 struct urb *irq_urb;
124 dma_addr_t irq_dma_handle;
125 void *iso_buffer;
126 dma_addr_t iso_dma_handle;
127 struct urb *iso_urb[ISO_BUF_COUNT];
128 int iso_stream_count;
129 struct mutex iso_mutex;
130
131 u8 packet[MAX_PVA_LENGTH + 4];
132 enum ttusb_dec_packet_type packet_type;
133 int packet_state;
134 int packet_length;
135 int packet_payload_length;
136 u16 next_packet_id;
137
138 int pva_stream_count;
139 int filter_stream_count;
140
141 struct dvb_filter_pes2ts a_pes2ts;
142 struct dvb_filter_pes2ts v_pes2ts;
143
144 u8 v_pes[16 + MAX_PVA_LENGTH];
145 int v_pes_length;
146 int v_pes_postbytes;
147
148 struct list_head urb_frame_list;
149 struct tasklet_struct urb_tasklet;
150 spinlock_t urb_frame_list_lock;
151
152 struct dvb_demux_filter *audio_filter;
153 struct dvb_demux_filter *video_filter;
154 struct list_head filter_info_list;
155 spinlock_t filter_info_list_lock;
156
157 struct input_dev *rc_input_dev;
158 char rc_phys[64];
159
160 int active; /* Loaded successfully */
161 };
162
163 struct urb_frame {
164 u8 data[ISO_FRAME_SIZE];
165 int length;
166 struct list_head urb_frame_list;
167 };
168
169 struct filter_info {
170 u8 stream_id;
171 struct dvb_demux_filter *filter;
172 struct list_head filter_info_list;
173 };
174
175 static u16 rc_keys[] = {
176 KEY_POWER,
177 KEY_MUTE,
178 KEY_1,
179 KEY_2,
180 KEY_3,
181 KEY_4,
182 KEY_5,
183 KEY_6,
184 KEY_7,
185 KEY_8,
186 KEY_9,
187 KEY_0,
188 KEY_CHANNELUP,
189 KEY_VOLUMEDOWN,
190 KEY_OK,
191 KEY_VOLUMEUP,
192 KEY_CHANNELDOWN,
193 KEY_PREVIOUS,
194 KEY_ESC,
195 KEY_RED,
196 KEY_GREEN,
197 KEY_YELLOW,
198 KEY_BLUE,
199 KEY_OPTION,
200 KEY_M,
201 KEY_RADIO
202 };
203
204 static void ttusb_dec_set_model(struct ttusb_dec *dec,
205 enum ttusb_dec_model model);
206
207 static void ttusb_dec_handle_irq( struct urb *urb)
208 {
209 struct ttusb_dec * dec = urb->context;
210 char *buffer = dec->irq_buffer;
211 int retval;
212
213 switch(urb->status) {
214 case 0: /*success*/
215 break;
216 case -ECONNRESET:
217 case -ENOENT:
218 case -ESHUTDOWN:
219 case -ETIME:
220 /* this urb is dead, cleanup */
221 dprintk("%s:urb shutting down with status: %d\n",
222 __func__, urb->status);
223 return;
224 default:
225 dprintk("%s:nonzero status received: %d\n",
226 __func__,urb->status);
227 goto exit;
228 }
229
230 if( (buffer[0] == 0x1) && (buffer[2] == 0x15) ) {
231 /* IR - Event */
232 /* this is an fact a bit too simple implementation;
233 * the box also reports a keyrepeat signal
234 * (with buffer[3] == 0x40) in an intervall of ~100ms.
235 * But to handle this correctly we had to imlemenent some
236 * kind of timer which signals a 'key up' event if no
237 * keyrepeat signal is recieved for lets say 200ms.
238 * this should/could be added later ...
239 * for now lets report each signal as a key down and up*/
240 dprintk("%s:rc signal:%d\n", __func__, buffer[4]);
241 input_report_key(dec->rc_input_dev, rc_keys[buffer[4] - 1], 1);
242 input_sync(dec->rc_input_dev);
243 input_report_key(dec->rc_input_dev, rc_keys[buffer[4] - 1], 0);
244 input_sync(dec->rc_input_dev);
245 }
246
247 exit: retval = usb_submit_urb(urb, GFP_ATOMIC);
248 if(retval)
249 printk("%s - usb_commit_urb failed with result: %d\n",
250 __func__, retval);
251 }
252
253 static u16 crc16(u16 crc, const u8 *buf, size_t len)
254 {
255 u16 tmp;
256
257 while (len--) {
258 crc ^= *buf++;
259 crc ^= (u8)crc >> 4;
260 tmp = (u8)crc;
261 crc ^= (tmp ^ (tmp << 1)) << 4;
262 }
263 return crc;
264 }
265
266 static int ttusb_dec_send_command(struct ttusb_dec *dec, const u8 command,
267 int param_length, const u8 params[],
268 int *result_length, u8 cmd_result[])
269 {
270 int result, actual_len, i;
271 u8 *b;
272
273 dprintk("%s\n", __func__);
274
275 b = kmalloc(COMMAND_PACKET_SIZE + 4, GFP_KERNEL);
276 if (!b)
277 return -ENOMEM;
278
279 if ((result = mutex_lock_interruptible(&dec->usb_mutex))) {
280 kfree(b);
281 printk("%s: Failed to lock usb mutex.\n", __func__);
282 return result;
283 }
284
285 b[0] = 0xaa;
286 b[1] = ++dec->trans_count;
287 b[2] = command;
288 b[3] = param_length;
289
290 if (params)
291 memcpy(&b[4], params, param_length);
292
293 if (debug) {
294 printk("%s: command: ", __func__);
295 for (i = 0; i < param_length + 4; i++)
296 printk("0x%02X ", b[i]);
297 printk("\n");
298 }
299
300 result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
301 COMMAND_PACKET_SIZE + 4, &actual_len, 1000);
302
303 if (result) {
304 printk("%s: command bulk message failed: error %d\n",
305 __func__, result);
306 mutex_unlock(&dec->usb_mutex);
307 kfree(b);
308 return result;
309 }
310
311 result = usb_bulk_msg(dec->udev, dec->result_pipe, b,
312 COMMAND_PACKET_SIZE + 4, &actual_len, 1000);
313
314 if (result) {
315 printk("%s: result bulk message failed: error %d\n",
316 __func__, result);
317 mutex_unlock(&dec->usb_mutex);
318 kfree(b);
319 return result;
320 } else {
321 if (debug) {
322 printk("%s: result: ", __func__);
323 for (i = 0; i < actual_len; i++)
324 printk("0x%02X ", b[i]);
325 printk("\n");
326 }
327
328 if (result_length)
329 *result_length = b[3];
330 if (cmd_result && b[3] > 0)
331 memcpy(cmd_result, &b[4], b[3]);
332
333 mutex_unlock(&dec->usb_mutex);
334
335 kfree(b);
336 return 0;
337 }
338 }
339
340 static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode,
341 unsigned int *model, unsigned int *version)
342 {
343 u8 c[COMMAND_PACKET_SIZE];
344 int c_length;
345 int result;
346 unsigned int tmp;
347
348 dprintk("%s\n", __func__);
349
350 result = ttusb_dec_send_command(dec, 0x08, 0, NULL, &c_length, c);
351 if (result)
352 return result;
353
354 if (c_length >= 0x0c) {
355 if (mode != NULL) {
356 memcpy(&tmp, c, 4);
357 *mode = ntohl(tmp);
358 }
359 if (model != NULL) {
360 memcpy(&tmp, &c[4], 4);
361 *model = ntohl(tmp);
362 }
363 if (version != NULL) {
364 memcpy(&tmp, &c[8], 4);
365 *version = ntohl(tmp);
366 }
367 return 0;
368 } else {
369 return -1;
370 }
371 }
372
373 static int ttusb_dec_audio_pes2ts_cb(void *priv, unsigned char *data)
374 {
375 struct ttusb_dec *dec = priv;
376
377 dec->audio_filter->feed->cb.ts(data, 188, NULL, 0,
378 &dec->audio_filter->feed->feed.ts,
379 DMX_OK);
380
381 return 0;
382 }
383
384 static int ttusb_dec_video_pes2ts_cb(void *priv, unsigned char *data)
385 {
386 struct ttusb_dec *dec = priv;
387
388 dec->video_filter->feed->cb.ts(data, 188, NULL, 0,
389 &dec->video_filter->feed->feed.ts,
390 DMX_OK);
391
392 return 0;
393 }
394
395 static void ttusb_dec_set_pids(struct ttusb_dec *dec)
396 {
397 u8 b[] = { 0x00, 0x00, 0x00, 0x00,
398 0x00, 0x00, 0xff, 0xff,
399 0xff, 0xff, 0xff, 0xff };
400
401 u16 pcr = htons(dec->pid[DMX_PES_PCR]);
402 u16 audio = htons(dec->pid[DMX_PES_AUDIO]);
403 u16 video = htons(dec->pid[DMX_PES_VIDEO]);
404
405 dprintk("%s\n", __func__);
406
407 memcpy(&b[0], &pcr, 2);
408 memcpy(&b[2], &audio, 2);
409 memcpy(&b[4], &video, 2);
410
411 ttusb_dec_send_command(dec, 0x50, sizeof(b), b, NULL, NULL);
412
413 dvb_filter_pes2ts_init(&dec->a_pes2ts, dec->pid[DMX_PES_AUDIO],
414 ttusb_dec_audio_pes2ts_cb, dec);
415 dvb_filter_pes2ts_init(&dec->v_pes2ts, dec->pid[DMX_PES_VIDEO],
416 ttusb_dec_video_pes2ts_cb, dec);
417 dec->v_pes_length = 0;
418 dec->v_pes_postbytes = 0;
419 }
420
421 static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length)
422 {
423 if (length < 8) {
424 printk("%s: packet too short - discarding\n", __func__);
425 return;
426 }
427
428 if (length > 8 + MAX_PVA_LENGTH) {
429 printk("%s: packet too long - discarding\n", __func__);
430 return;
431 }
432
433 switch (pva[2]) {
434
435 case 0x01: { /* VideoStream */
436 int prebytes = pva[5] & 0x03;
437 int postbytes = (pva[5] & 0x0c) >> 2;
438 u16 v_pes_payload_length;
439
440 if (output_pva) {
441 dec->video_filter->feed->cb.ts(pva, length, NULL, 0,
442 &dec->video_filter->feed->feed.ts, DMX_OK);
443 return;
444 }
445
446 if (dec->v_pes_postbytes > 0 &&
447 dec->v_pes_postbytes == prebytes) {
448 memcpy(&dec->v_pes[dec->v_pes_length],
449 &pva[12], prebytes);
450
451 dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes,
452 dec->v_pes_length + prebytes, 1);
453 }
454
455 if (pva[5] & 0x10) {
456 dec->v_pes[7] = 0x80;
457 dec->v_pes[8] = 0x05;
458
459 dec->v_pes[9] = 0x21 | ((pva[8] & 0xc0) >> 5);
460 dec->v_pes[10] = ((pva[8] & 0x3f) << 2) |
461 ((pva[9] & 0xc0) >> 6);
462 dec->v_pes[11] = 0x01 |
463 ((pva[9] & 0x3f) << 2) |
464 ((pva[10] & 0x80) >> 6);
465 dec->v_pes[12] = ((pva[10] & 0x7f) << 1) |
466 ((pva[11] & 0xc0) >> 7);
467 dec->v_pes[13] = 0x01 | ((pva[11] & 0x7f) << 1);
468
469 memcpy(&dec->v_pes[14], &pva[12 + prebytes],
470 length - 12 - prebytes);
471 dec->v_pes_length = 14 + length - 12 - prebytes;
472 } else {
473 dec->v_pes[7] = 0x00;
474 dec->v_pes[8] = 0x00;
475
476 memcpy(&dec->v_pes[9], &pva[8], length - 8);
477 dec->v_pes_length = 9 + length - 8;
478 }
479
480 dec->v_pes_postbytes = postbytes;
481
482 if (dec->v_pes[9 + dec->v_pes[8]] == 0x00 &&
483 dec->v_pes[10 + dec->v_pes[8]] == 0x00 &&
484 dec->v_pes[11 + dec->v_pes[8]] == 0x01)
485 dec->v_pes[6] = 0x84;
486 else
487 dec->v_pes[6] = 0x80;
488
489 v_pes_payload_length = htons(dec->v_pes_length - 6 +
490 postbytes);
491 memcpy(&dec->v_pes[4], &v_pes_payload_length, 2);
492
493 if (postbytes == 0)
494 dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes,
495 dec->v_pes_length, 1);
496
497 break;
498 }
499
500 case 0x02: /* MainAudioStream */
501 if (output_pva) {
502 dec->audio_filter->feed->cb.ts(pva, length, NULL, 0,
503 &dec->audio_filter->feed->feed.ts, DMX_OK);
504 return;
505 }
506
507 dvb_filter_pes2ts(&dec->a_pes2ts, &pva[8], length - 8,
508 pva[5] & 0x10);
509 break;
510
511 default:
512 printk("%s: unknown PVA type: %02x.\n", __func__,
513 pva[2]);
514 break;
515 }
516 }
517
518 static void ttusb_dec_process_filter(struct ttusb_dec *dec, u8 *packet,
519 int length)
520 {
521 struct list_head *item;
522 struct filter_info *finfo;
523 struct dvb_demux_filter *filter = NULL;
524 unsigned long flags;
525 u8 sid;
526
527 sid = packet[1];
528 spin_lock_irqsave(&dec->filter_info_list_lock, flags);
529 for (item = dec->filter_info_list.next; item != &dec->filter_info_list;
530 item = item->next) {
531 finfo = list_entry(item, struct filter_info, filter_info_list);
532 if (finfo->stream_id == sid) {
533 filter = finfo->filter;
534 break;
535 }
536 }
537 spin_unlock_irqrestore(&dec->filter_info_list_lock, flags);
538
539 if (filter)
540 filter->feed->cb.sec(&packet[2], length - 2, NULL, 0,
541 &filter->filter, DMX_OK);
542 }
543
544 static void ttusb_dec_process_packet(struct ttusb_dec *dec)
545 {
546 int i;
547 u16 csum = 0;
548 u16 packet_id;
549
550 if (dec->packet_length % 2) {
551 printk("%s: odd sized packet - discarding\n", __func__);
552 return;
553 }
554
555 for (i = 0; i < dec->packet_length; i += 2)
556 csum ^= ((dec->packet[i] << 8) + dec->packet[i + 1]);
557
558 if (csum) {
559 printk("%s: checksum failed - discarding\n", __func__);
560 return;
561 }
562
563 packet_id = dec->packet[dec->packet_length - 4] << 8;
564 packet_id += dec->packet[dec->packet_length - 3];
565
566 if ((packet_id != dec->next_packet_id) && dec->next_packet_id) {
567 printk("%s: warning: lost packets between %u and %u\n",
568 __func__, dec->next_packet_id - 1, packet_id);
569 }
570
571 if (packet_id == 0xffff)
572 dec->next_packet_id = 0x8000;
573 else
574 dec->next_packet_id = packet_id + 1;
575
576 switch (dec->packet_type) {
577 case TTUSB_DEC_PACKET_PVA:
578 if (dec->pva_stream_count)
579 ttusb_dec_process_pva(dec, dec->packet,
580 dec->packet_payload_length);
581 break;
582
583 case TTUSB_DEC_PACKET_SECTION:
584 if (dec->filter_stream_count)
585 ttusb_dec_process_filter(dec, dec->packet,
586 dec->packet_payload_length);
587 break;
588
589 case TTUSB_DEC_PACKET_EMPTY:
590 break;
591 }
592 }
593
594 static void swap_bytes(u8 *b, int length)
595 {
596 u8 c;
597
598 length -= length % 2;
599 for (; length; b += 2, length -= 2) {
600 c = *b;
601 *b = *(b + 1);
602 *(b + 1) = c;
603 }
604 }
605
606 static void ttusb_dec_process_urb_frame(struct ttusb_dec *dec, u8 *b,
607 int length)
608 {
609 swap_bytes(b, length);
610
611 while (length) {
612 switch (dec->packet_state) {
613
614 case 0:
615 case 1:
616 case 2:
617 if (*b++ == 0xaa)
618 dec->packet_state++;
619 else
620 dec->packet_state = 0;
621
622 length--;
623 break;
624
625 case 3:
626 if (*b == 0x00) {
627 dec->packet_state++;
628 dec->packet_length = 0;
629 } else if (*b != 0xaa) {
630 dec->packet_state = 0;
631 }
632
633 b++;
634 length--;
635 break;
636
637 case 4:
638 dec->packet[dec->packet_length++] = *b++;
639
640 if (dec->packet_length == 2) {
641 if (dec->packet[0] == 'A' &&
642 dec->packet[1] == 'V') {
643 dec->packet_type =
644 TTUSB_DEC_PACKET_PVA;
645 dec->packet_state++;
646 } else if (dec->packet[0] == 'S') {
647 dec->packet_type =
648 TTUSB_DEC_PACKET_SECTION;
649 dec->packet_state++;
650 } else if (dec->packet[0] == 0x00) {
651 dec->packet_type =
652 TTUSB_DEC_PACKET_EMPTY;
653 dec->packet_payload_length = 2;
654 dec->packet_state = 7;
655 } else {
656 printk("%s: unknown packet type: "
657 "%02x%02x\n", __func__,
658 dec->packet[0], dec->packet[1]);
659 dec->packet_state = 0;
660 }
661 }
662
663 length--;
664 break;
665
666 case 5:
667 dec->packet[dec->packet_length++] = *b++;
668
669 if (dec->packet_type == TTUSB_DEC_PACKET_PVA &&
670 dec->packet_length == 8) {
671 dec->packet_state++;
672 dec->packet_payload_length = 8 +
673 (dec->packet[6] << 8) +
674 dec->packet[7];
675 } else if (dec->packet_type ==
676 TTUSB_DEC_PACKET_SECTION &&
677 dec->packet_length == 5) {
678 dec->packet_state++;
679 dec->packet_payload_length = 5 +
680 ((dec->packet[3] & 0x0f) << 8) +
681 dec->packet[4];
682 }
683
684 length--;
685 break;
686
687 case 6: {
688 int remainder = dec->packet_payload_length -
689 dec->packet_length;
690
691 if (length >= remainder) {
692 memcpy(dec->packet + dec->packet_length,
693 b, remainder);
694 dec->packet_length += remainder;
695 b += remainder;
696 length -= remainder;
697 dec->packet_state++;
698 } else {
699 memcpy(&dec->packet[dec->packet_length],
700 b, length);
701 dec->packet_length += length;
702 length = 0;
703 }
704
705 break;
706 }
707
708 case 7: {
709 int tail = 4;
710
711 dec->packet[dec->packet_length++] = *b++;
712
713 if (dec->packet_type == TTUSB_DEC_PACKET_SECTION &&
714 dec->packet_payload_length % 2)
715 tail++;
716
717 if (dec->packet_length ==
718 dec->packet_payload_length + tail) {
719 ttusb_dec_process_packet(dec);
720 dec->packet_state = 0;
721 }
722
723 length--;
724 break;
725 }
726
727 default:
728 printk("%s: illegal packet state encountered.\n",
729 __func__);
730 dec->packet_state = 0;
731 }
732 }
733 }
734
735 static void ttusb_dec_process_urb_frame_list(unsigned long data)
736 {
737 struct ttusb_dec *dec = (struct ttusb_dec *)data;
738 struct list_head *item;
739 struct urb_frame *frame;
740 unsigned long flags;
741
742 while (1) {
743 spin_lock_irqsave(&dec->urb_frame_list_lock, flags);
744 if ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) {
745 frame = list_entry(item, struct urb_frame,
746 urb_frame_list);
747 list_del(&frame->urb_frame_list);
748 } else {
749 spin_unlock_irqrestore(&dec->urb_frame_list_lock,
750 flags);
751 return;
752 }
753 spin_unlock_irqrestore(&dec->urb_frame_list_lock, flags);
754
755 ttusb_dec_process_urb_frame(dec, frame->data, frame->length);
756 kfree(frame);
757 }
758 }
759
760 static void ttusb_dec_process_urb(struct urb *urb)
761 {
762 struct ttusb_dec *dec = urb->context;
763
764 if (!urb->status) {
765 int i;
766
767 for (i = 0; i < FRAMES_PER_ISO_BUF; i++) {
768 struct usb_iso_packet_descriptor *d;
769 u8 *b;
770 int length;
771 struct urb_frame *frame;
772
773 d = &urb->iso_frame_desc[i];
774 b = urb->transfer_buffer + d->offset;
775 length = d->actual_length;
776
777 if ((frame = kmalloc(sizeof(struct urb_frame),
778 GFP_ATOMIC))) {
779 unsigned long flags;
780
781 memcpy(frame->data, b, length);
782 frame->length = length;
783
784 spin_lock_irqsave(&dec->urb_frame_list_lock,
785 flags);
786 list_add_tail(&frame->urb_frame_list,
787 &dec->urb_frame_list);
788 spin_unlock_irqrestore(&dec->urb_frame_list_lock,
789 flags);
790
791 tasklet_schedule(&dec->urb_tasklet);
792 }
793 }
794 } else {
795 /* -ENOENT is expected when unlinking urbs */
796 if (urb->status != -ENOENT)
797 dprintk("%s: urb error: %d\n", __func__,
798 urb->status);
799 }
800
801 if (dec->iso_stream_count)
802 usb_submit_urb(urb, GFP_ATOMIC);
803 }
804
805 static void ttusb_dec_setup_urbs(struct ttusb_dec *dec)
806 {
807 int i, j, buffer_offset = 0;
808
809 dprintk("%s\n", __func__);
810
811 for (i = 0; i < ISO_BUF_COUNT; i++) {
812 int frame_offset = 0;
813 struct urb *urb = dec->iso_urb[i];
814
815 urb->dev = dec->udev;
816 urb->context = dec;
817 urb->complete = ttusb_dec_process_urb;
818 urb->pipe = dec->in_pipe;
819 urb->transfer_flags = URB_ISO_ASAP;
820 urb->interval = 1;
821 urb->number_of_packets = FRAMES_PER_ISO_BUF;
822 urb->transfer_buffer_length = ISO_FRAME_SIZE *
823 FRAMES_PER_ISO_BUF;
824 urb->transfer_buffer = dec->iso_buffer + buffer_offset;
825 buffer_offset += ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF;
826
827 for (j = 0; j < FRAMES_PER_ISO_BUF; j++) {
828 urb->iso_frame_desc[j].offset = frame_offset;
829 urb->iso_frame_desc[j].length = ISO_FRAME_SIZE;
830 frame_offset += ISO_FRAME_SIZE;
831 }
832 }
833 }
834
835 static void ttusb_dec_stop_iso_xfer(struct ttusb_dec *dec)
836 {
837 int i;
838
839 dprintk("%s\n", __func__);
840
841 if (mutex_lock_interruptible(&dec->iso_mutex))
842 return;
843
844 dec->iso_stream_count--;
845
846 if (!dec->iso_stream_count) {
847 for (i = 0; i < ISO_BUF_COUNT; i++)
848 usb_kill_urb(dec->iso_urb[i]);
849 }
850
851 mutex_unlock(&dec->iso_mutex);
852 }
853
854 /* Setting the interface of the DEC tends to take down the USB communications
855 * for a short period, so it's important not to call this function just before
856 * trying to talk to it.
857 */
858 static int ttusb_dec_set_interface(struct ttusb_dec *dec,
859 enum ttusb_dec_interface interface)
860 {
861 int result = 0;
862 u8 b[] = { 0x05 };
863
864 if (interface != dec->interface) {
865 switch (interface) {
866 case TTUSB_DEC_INTERFACE_INITIAL:
867 result = usb_set_interface(dec->udev, 0, 0);
868 break;
869 case TTUSB_DEC_INTERFACE_IN:
870 result = ttusb_dec_send_command(dec, 0x80, sizeof(b),
871 b, NULL, NULL);
872 if (result)
873 return result;
874 result = usb_set_interface(dec->udev, 0, 8);
875 break;
876 case TTUSB_DEC_INTERFACE_OUT:
877 result = usb_set_interface(dec->udev, 0, 1);
878 break;
879 }
880
881 if (result)
882 return result;
883
884 dec->interface = interface;
885 }
886
887 return 0;
888 }
889
890 static int ttusb_dec_start_iso_xfer(struct ttusb_dec *dec)
891 {
892 int i, result;
893
894 dprintk("%s\n", __func__);
895
896 if (mutex_lock_interruptible(&dec->iso_mutex))
897 return -EAGAIN;
898
899 if (!dec->iso_stream_count) {
900 ttusb_dec_setup_urbs(dec);
901
902 dec->packet_state = 0;
903 dec->v_pes_postbytes = 0;
904 dec->next_packet_id = 0;
905
906 for (i = 0; i < ISO_BUF_COUNT; i++) {
907 if ((result = usb_submit_urb(dec->iso_urb[i],
908 GFP_ATOMIC))) {
909 printk("%s: failed urb submission %d: "
910 "error %d\n", __func__, i, result);
911
912 while (i) {
913 usb_kill_urb(dec->iso_urb[i - 1]);
914 i--;
915 }
916
917 mutex_unlock(&dec->iso_mutex);
918 return result;
919 }
920 }
921 }
922
923 dec->iso_stream_count++;
924
925 mutex_unlock(&dec->iso_mutex);
926
927 return 0;
928 }
929
930 static int ttusb_dec_start_ts_feed(struct dvb_demux_feed *dvbdmxfeed)
931 {
932 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
933 struct ttusb_dec *dec = dvbdmx->priv;
934 u8 b0[] = { 0x05 };
935 int result = 0;
936
937 dprintk("%s\n", __func__);
938
939 dprintk(" ts_type:");
940
941 if (dvbdmxfeed->ts_type & TS_DECODER)
942 dprintk(" TS_DECODER");
943
944 if (dvbdmxfeed->ts_type & TS_PACKET)
945 dprintk(" TS_PACKET");
946
947 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
948 dprintk(" TS_PAYLOAD_ONLY");
949
950 dprintk("\n");
951
952 switch (dvbdmxfeed->pes_type) {
953
954 case DMX_TS_PES_VIDEO:
955 dprintk(" pes_type: DMX_TS_PES_VIDEO\n");
956 dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid;
957 dec->pid[DMX_PES_VIDEO] = dvbdmxfeed->pid;
958 dec->video_filter = dvbdmxfeed->filter;
959 ttusb_dec_set_pids(dec);
960 break;
961
962 case DMX_TS_PES_AUDIO:
963 dprintk(" pes_type: DMX_TS_PES_AUDIO\n");
964 dec->pid[DMX_PES_AUDIO] = dvbdmxfeed->pid;
965 dec->audio_filter = dvbdmxfeed->filter;
966 ttusb_dec_set_pids(dec);
967 break;
968
969 case DMX_TS_PES_TELETEXT:
970 dec->pid[DMX_PES_TELETEXT] = dvbdmxfeed->pid;
971 dprintk(" pes_type: DMX_TS_PES_TELETEXT(not supported)\n");
972 return -ENOSYS;
973
974 case DMX_TS_PES_PCR:
975 dprintk(" pes_type: DMX_TS_PES_PCR\n");
976 dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid;
977 ttusb_dec_set_pids(dec);
978 break;
979
980 case DMX_TS_PES_OTHER:
981 dprintk(" pes_type: DMX_TS_PES_OTHER(not supported)\n");
982 return -ENOSYS;
983
984 default:
985 dprintk(" pes_type: unknown (%d)\n", dvbdmxfeed->pes_type);
986 return -EINVAL;
987
988 }
989
990 result = ttusb_dec_send_command(dec, 0x80, sizeof(b0), b0, NULL, NULL);
991 if (result)
992 return result;
993
994 dec->pva_stream_count++;
995 return ttusb_dec_start_iso_xfer(dec);
996 }
997
998 static int ttusb_dec_start_sec_feed(struct dvb_demux_feed *dvbdmxfeed)
999 {
1000 struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
1001 u8 b0[] = { 0x00, 0x00, 0x00, 0x01,
1002 0x00, 0x00, 0x00, 0x00,
1003 0x00, 0x00, 0x00, 0x00,
1004 0x00, 0x00, 0x00, 0x00,
1005 0x00, 0xff, 0x00, 0x00,
1006 0x00, 0x00, 0x00, 0x00,
1007 0x00, 0x00, 0x00, 0x00,
1008 0x00 };
1009 u16 pid;
1010 u8 c[COMMAND_PACKET_SIZE];
1011 int c_length;
1012 int result;
1013 struct filter_info *finfo;
1014 unsigned long flags;
1015 u8 x = 1;
1016
1017 dprintk("%s\n", __func__);
1018
1019 pid = htons(dvbdmxfeed->pid);
1020 memcpy(&b0[0], &pid, 2);
1021 memcpy(&b0[4], &x, 1);
1022 memcpy(&b0[5], &dvbdmxfeed->filter->filter.filter_value[0], 1);
1023
1024 result = ttusb_dec_send_command(dec, 0x60, sizeof(b0), b0,
1025 &c_length, c);
1026
1027 if (!result) {
1028 if (c_length == 2) {
1029 if (!(finfo = kmalloc(sizeof(struct filter_info),
1030 GFP_ATOMIC)))
1031 return -ENOMEM;
1032
1033 finfo->stream_id = c[1];
1034 finfo->filter = dvbdmxfeed->filter;
1035
1036 spin_lock_irqsave(&dec->filter_info_list_lock, flags);
1037 list_add_tail(&finfo->filter_info_list,
1038 &dec->filter_info_list);
1039 spin_unlock_irqrestore(&dec->filter_info_list_lock,
1040 flags);
1041
1042 dvbdmxfeed->priv = finfo;
1043
1044 dec->filter_stream_count++;
1045 return ttusb_dec_start_iso_xfer(dec);
1046 }
1047
1048 return -EAGAIN;
1049 } else
1050 return result;
1051 }
1052
1053 static int ttusb_dec_start_feed(struct dvb_demux_feed *dvbdmxfeed)
1054 {
1055 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
1056
1057 dprintk("%s\n", __func__);
1058
1059 if (!dvbdmx->dmx.frontend)
1060 return -EINVAL;
1061
1062 dprintk(" pid: 0x%04X\n", dvbdmxfeed->pid);
1063
1064 switch (dvbdmxfeed->type) {
1065
1066 case DMX_TYPE_TS:
1067 return ttusb_dec_start_ts_feed(dvbdmxfeed);
1068 break;
1069
1070 case DMX_TYPE_SEC:
1071 return ttusb_dec_start_sec_feed(dvbdmxfeed);
1072 break;
1073
1074 default:
1075 dprintk(" type: unknown (%d)\n", dvbdmxfeed->type);
1076 return -EINVAL;
1077
1078 }
1079 }
1080
1081 static int ttusb_dec_stop_ts_feed(struct dvb_demux_feed *dvbdmxfeed)
1082 {
1083 struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
1084 u8 b0[] = { 0x00 };
1085
1086 ttusb_dec_send_command(dec, 0x81, sizeof(b0), b0, NULL, NULL);
1087
1088 dec->pva_stream_count--;
1089
1090 ttusb_dec_stop_iso_xfer(dec);
1091
1092 return 0;
1093 }
1094
1095 static int ttusb_dec_stop_sec_feed(struct dvb_demux_feed *dvbdmxfeed)
1096 {
1097 struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
1098 u8 b0[] = { 0x00, 0x00 };
1099 struct filter_info *finfo = (struct filter_info *)dvbdmxfeed->priv;
1100 unsigned long flags;
1101
1102 b0[1] = finfo->stream_id;
1103 spin_lock_irqsave(&dec->filter_info_list_lock, flags);
1104 list_del(&finfo->filter_info_list);
1105 spin_unlock_irqrestore(&dec->filter_info_list_lock, flags);
1106 kfree(finfo);
1107 ttusb_dec_send_command(dec, 0x62, sizeof(b0), b0, NULL, NULL);
1108
1109 dec->filter_stream_count--;
1110
1111 ttusb_dec_stop_iso_xfer(dec);
1112
1113 return 0;
1114 }
1115
1116 static int ttusb_dec_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
1117 {
1118 dprintk("%s\n", __func__);
1119
1120 switch (dvbdmxfeed->type) {
1121 case DMX_TYPE_TS:
1122 return ttusb_dec_stop_ts_feed(dvbdmxfeed);
1123 break;
1124
1125 case DMX_TYPE_SEC:
1126 return ttusb_dec_stop_sec_feed(dvbdmxfeed);
1127 break;
1128 }
1129
1130 return 0;
1131 }
1132
1133 static void ttusb_dec_free_iso_urbs(struct ttusb_dec *dec)
1134 {
1135 int i;
1136
1137 dprintk("%s\n", __func__);
1138
1139 for (i = 0; i < ISO_BUF_COUNT; i++)
1140 usb_free_urb(dec->iso_urb[i]);
1141
1142 pci_free_consistent(NULL,
1143 ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF *
1144 ISO_BUF_COUNT),
1145 dec->iso_buffer, dec->iso_dma_handle);
1146 }
1147
1148 static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
1149 {
1150 int i;
1151
1152 dprintk("%s\n", __func__);
1153
1154 dec->iso_buffer = pci_alloc_consistent(NULL,
1155 ISO_FRAME_SIZE *
1156 (FRAMES_PER_ISO_BUF *
1157 ISO_BUF_COUNT),
1158 &dec->iso_dma_handle);
1159
1160 memset(dec->iso_buffer, 0,
1161 ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT));
1162
1163 for (i = 0; i < ISO_BUF_COUNT; i++) {
1164 struct urb *urb;
1165
1166 if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) {
1167 ttusb_dec_free_iso_urbs(dec);
1168 return -ENOMEM;
1169 }
1170
1171 dec->iso_urb[i] = urb;
1172 }
1173
1174 ttusb_dec_setup_urbs(dec);
1175
1176 return 0;
1177 }
1178
1179 static void ttusb_dec_init_tasklet(struct ttusb_dec *dec)
1180 {
1181 spin_lock_init(&dec->urb_frame_list_lock);
1182 INIT_LIST_HEAD(&dec->urb_frame_list);
1183 tasklet_init(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list,
1184 (unsigned long)dec);
1185 }
1186
1187 static int ttusb_init_rc( struct ttusb_dec *dec)
1188 {
1189 struct input_dev *input_dev;
1190 u8 b[] = { 0x00, 0x01 };
1191 int i;
1192 int err;
1193
1194 usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys));
1195 strlcpy(dec->rc_phys, "/input0", sizeof(dec->rc_phys));
1196
1197 input_dev = input_allocate_device();
1198 if (!input_dev)
1199 return -ENOMEM;
1200
1201 input_dev->name = "ttusb_dec remote control";
1202 input_dev->phys = dec->rc_phys;
1203 input_dev->evbit[0] = BIT_MASK(EV_KEY);
1204 input_dev->keycodesize = sizeof(u16);
1205 input_dev->keycodemax = 0x1a;
1206 input_dev->keycode = rc_keys;
1207
1208 for (i = 0; i < ARRAY_SIZE(rc_keys); i++)
1209 set_bit(rc_keys[i], input_dev->keybit);
1210
1211 err = input_register_device(input_dev);
1212 if (err) {
1213 input_free_device(input_dev);
1214 return err;
1215 }
1216
1217 dec->rc_input_dev = input_dev;
1218 if (usb_submit_urb(dec->irq_urb, GFP_KERNEL))
1219 printk("%s: usb_submit_urb failed\n",__func__);
1220 /* enable irq pipe */
1221 ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL);
1222
1223 return 0;
1224 }
1225
1226 static void ttusb_dec_init_v_pes(struct ttusb_dec *dec)
1227 {
1228 dprintk("%s\n", __func__);
1229
1230 dec->v_pes[0] = 0x00;
1231 dec->v_pes[1] = 0x00;
1232 dec->v_pes[2] = 0x01;
1233 dec->v_pes[3] = 0xe0;
1234 }
1235
1236 static int ttusb_dec_init_usb(struct ttusb_dec *dec)
1237 {
1238 dprintk("%s\n", __func__);
1239
1240 mutex_init(&dec->usb_mutex);
1241 mutex_init(&dec->iso_mutex);
1242
1243 dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE);
1244 dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE);
1245 dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE);
1246 dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE);
1247 dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE);
1248
1249 if(enable_rc) {
1250 dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
1251 if(!dec->irq_urb) {
1252 return -ENOMEM;
1253 }
1254 dec->irq_buffer = usb_buffer_alloc(dec->udev,IRQ_PACKET_SIZE,
1255 GFP_ATOMIC, &dec->irq_dma_handle);
1256 if(!dec->irq_buffer) {
1257 return -ENOMEM;
1258 }
1259 usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe,
1260 dec->irq_buffer, IRQ_PACKET_SIZE,
1261 ttusb_dec_handle_irq, dec, 1);
1262 dec->irq_urb->transfer_dma = dec->irq_dma_handle;
1263 dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1264 }
1265
1266 return ttusb_dec_alloc_iso_urbs(dec);
1267 }
1268
1269 static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
1270 {
1271 int i, j, actual_len, result, size, trans_count;
1272 u8 b0[] = { 0x00, 0x00, 0x00, 0x00,
1273 0x00, 0x00, 0x00, 0x00,
1274 0x61, 0x00 };
1275 u8 b1[] = { 0x61 };
1276 u8 *b;
1277 char idstring[21];
1278 u8 *firmware = NULL;
1279 size_t firmware_size = 0;
1280 u16 firmware_csum = 0;
1281 u16 firmware_csum_ns;
1282 u32 firmware_size_nl;
1283 u32 crc32_csum, crc32_check, tmp;
1284 const struct firmware *fw_entry = NULL;
1285
1286 dprintk("%s\n", __func__);
1287
1288 if (request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev)) {
1289 printk(KERN_ERR "%s: Firmware (%s) unavailable.\n",
1290 __func__, dec->firmware_name);
1291 return 1;
1292 }
1293
1294 firmware = fw_entry->data;
1295 firmware_size = fw_entry->size;
1296
1297 if (firmware_size < 60) {
1298 printk("%s: firmware size too small for DSP code (%zu < 60).\n",
1299 __func__, firmware_size);
1300 release_firmware(fw_entry);
1301 return -1;
1302 }
1303
1304 /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored
1305 at offset 56 of file, so use it to check if the firmware file is
1306 valid. */
1307 crc32_csum = crc32(~0L, firmware, 56) ^ ~0L;
1308 memcpy(&tmp, &firmware[56], 4);
1309 crc32_check = htonl(tmp);
1310 if (crc32_csum != crc32_check) {
1311 printk("%s: crc32 check of DSP code failed (calculated "
1312 "0x%08x != 0x%08x in file), file invalid.\n",
1313 __func__, crc32_csum, crc32_check);
1314 release_firmware(fw_entry);
1315 return -1;
1316 }
1317 memcpy(idstring, &firmware[36], 20);
1318 idstring[20] = '\0';
1319 printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring);
1320
1321 firmware_size_nl = htonl(firmware_size);
1322 memcpy(b0, &firmware_size_nl, 4);
1323 firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0;
1324 firmware_csum_ns = htons(firmware_csum);
1325 memcpy(&b0[6], &firmware_csum_ns, 2);
1326
1327 result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL);
1328
1329 if (result) {
1330 release_firmware(fw_entry);
1331 return result;
1332 }
1333
1334 trans_count = 0;
1335 j = 0;
1336
1337 b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL);
1338 if (b == NULL) {
1339 release_firmware(fw_entry);
1340 return -ENOMEM;
1341 }
1342
1343 for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) {
1344 size = firmware_size - i;
1345 if (size > COMMAND_PACKET_SIZE)
1346 size = COMMAND_PACKET_SIZE;
1347
1348 b[j + 0] = 0xaa;
1349 b[j + 1] = trans_count++;
1350 b[j + 2] = 0xf0;
1351 b[j + 3] = size;
1352 memcpy(&b[j + 4], &firmware[i], size);
1353
1354 j += COMMAND_PACKET_SIZE + 4;
1355
1356 if (j >= ARM_PACKET_SIZE) {
1357 result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
1358 ARM_PACKET_SIZE, &actual_len,
1359 100);
1360 j = 0;
1361 } else if (size < COMMAND_PACKET_SIZE) {
1362 result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
1363 j - COMMAND_PACKET_SIZE + size,
1364 &actual_len, 100);
1365 }
1366 }
1367
1368 result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL);
1369
1370 release_firmware(fw_entry);
1371 kfree(b);
1372
1373 return result;
1374 }
1375
1376 static int ttusb_dec_init_stb(struct ttusb_dec *dec)
1377 {
1378 int result;
1379 unsigned int mode, model, version;
1380
1381 dprintk("%s\n", __func__);
1382
1383 result = ttusb_dec_get_stb_state(dec, &mode, &model, &version);
1384
1385 if (!result) {
1386 if (!mode) {
1387 if (version == 0xABCDEFAB)
1388 printk(KERN_INFO "ttusb_dec: no version "
1389 "info in Firmware\n");
1390 else
1391 printk(KERN_INFO "ttusb_dec: Firmware "
1392 "%x.%02x%c%c\n",
1393 version >> 24, (version >> 16) & 0xff,
1394 (version >> 8) & 0xff, version & 0xff);
1395
1396 result = ttusb_dec_boot_dsp(dec);
1397 if (result)
1398 return result;
1399 else
1400 return 1;
1401 } else {
1402 /* We can't trust the USB IDs that some firmwares
1403 give the box */
1404 switch (model) {
1405 case 0x00070001:
1406 case 0x00070008:
1407 case 0x0007000c:
1408 ttusb_dec_set_model(dec, TTUSB_DEC3000S);
1409 break;
1410 case 0x00070009:
1411 case 0x00070013:
1412 ttusb_dec_set_model(dec, TTUSB_DEC2000T);
1413 break;
1414 case 0x00070011:
1415 ttusb_dec_set_model(dec, TTUSB_DEC2540T);
1416 break;
1417 default:
1418 printk(KERN_ERR "%s: unknown model returned "
1419 "by firmware (%08x) - please report\n",
1420 __func__, model);
1421 return -1;
1422 break;
1423 }
1424
1425 if (version >= 0x01770000)
1426 dec->can_playback = 1;
1427
1428 return 0;
1429 }
1430 }
1431 else
1432 return result;
1433 }
1434
1435 static int ttusb_dec_init_dvb(struct ttusb_dec *dec)
1436 {
1437 int result;
1438
1439 dprintk("%s\n", __func__);
1440
1441 if ((result = dvb_register_adapter(&dec->adapter,
1442 dec->model_name, THIS_MODULE,
1443 &dec->udev->dev,
1444 adapter_nr)) < 0) {
1445 printk("%s: dvb_register_adapter failed: error %d\n",
1446 __func__, result);
1447
1448 return result;
1449 }
1450
1451 dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
1452
1453 dec->demux.priv = (void *)dec;
1454 dec->demux.filternum = 31;
1455 dec->demux.feednum = 31;
1456 dec->demux.start_feed = ttusb_dec_start_feed;
1457 dec->demux.stop_feed = ttusb_dec_stop_feed;
1458 dec->demux.write_to_decoder = NULL;
1459
1460 if ((result = dvb_dmx_init(&dec->demux)) < 0) {
1461 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1462 result);
1463
1464 dvb_unregister_adapter(&dec->adapter);
1465
1466 return result;
1467 }
1468
1469 dec->dmxdev.filternum = 32;
1470 dec->dmxdev.demux = &dec->demux.dmx;
1471 dec->dmxdev.capabilities = 0;
1472
1473 if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) {
1474 printk("%s: dvb_dmxdev_init failed: error %d\n",
1475 __func__, result);
1476
1477 dvb_dmx_release(&dec->demux);
1478 dvb_unregister_adapter(&dec->adapter);
1479
1480 return result;
1481 }
1482
1483 dec->frontend.source = DMX_FRONTEND_0;
1484
1485 if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx,
1486 &dec->frontend)) < 0) {
1487 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1488 result);
1489
1490 dvb_dmxdev_release(&dec->dmxdev);
1491 dvb_dmx_release(&dec->demux);
1492 dvb_unregister_adapter(&dec->adapter);
1493
1494 return result;
1495 }
1496
1497 if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx,
1498 &dec->frontend)) < 0) {
1499 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1500 result);
1501
1502 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
1503 dvb_dmxdev_release(&dec->dmxdev);
1504 dvb_dmx_release(&dec->demux);
1505 dvb_unregister_adapter(&dec->adapter);
1506
1507 return result;
1508 }
1509
1510 dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx);
1511
1512 return 0;
1513 }
1514
1515 static void ttusb_dec_exit_dvb(struct ttusb_dec *dec)
1516 {
1517 dprintk("%s\n", __func__);
1518
1519 dvb_net_release(&dec->dvb_net);
1520 dec->demux.dmx.close(&dec->demux.dmx);
1521 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
1522 dvb_dmxdev_release(&dec->dmxdev);
1523 dvb_dmx_release(&dec->demux);
1524 if (dec->fe) {
1525 dvb_unregister_frontend(dec->fe);
1526 if (dec->fe->ops.release)
1527 dec->fe->ops.release(dec->fe);
1528 }
1529 dvb_unregister_adapter(&dec->adapter);
1530 }
1531
1532 static void ttusb_dec_exit_rc(struct ttusb_dec *dec)
1533 {
1534
1535 dprintk("%s\n", __func__);
1536 /* we have to check whether the irq URB is already submitted.
1537 * As the irq is submitted after the interface is changed,
1538 * this is the best method i figured out.
1539 * Any others?*/
1540 if (dec->interface == TTUSB_DEC_INTERFACE_IN)
1541 usb_kill_urb(dec->irq_urb);
1542
1543 usb_free_urb(dec->irq_urb);
1544
1545 usb_buffer_free(dec->udev,IRQ_PACKET_SIZE,
1546 dec->irq_buffer, dec->irq_dma_handle);
1547
1548 if (dec->rc_input_dev) {
1549 input_unregister_device(dec->rc_input_dev);
1550 dec->rc_input_dev = NULL;
1551 }
1552 }
1553
1554
1555 static void ttusb_dec_exit_usb(struct ttusb_dec *dec)
1556 {
1557 int i;
1558
1559 dprintk("%s\n", __func__);
1560
1561 dec->iso_stream_count = 0;
1562
1563 for (i = 0; i < ISO_BUF_COUNT; i++)
1564 usb_kill_urb(dec->iso_urb[i]);
1565
1566 ttusb_dec_free_iso_urbs(dec);
1567 }
1568
1569 static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec)
1570 {
1571 struct list_head *item;
1572 struct urb_frame *frame;
1573
1574 tasklet_kill(&dec->urb_tasklet);
1575
1576 while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) {
1577 frame = list_entry(item, struct urb_frame, urb_frame_list);
1578 list_del(&frame->urb_frame_list);
1579 kfree(frame);
1580 }
1581 }
1582
1583 static void ttusb_dec_init_filters(struct ttusb_dec *dec)
1584 {
1585 INIT_LIST_HEAD(&dec->filter_info_list);
1586 spin_lock_init(&dec->filter_info_list_lock);
1587 }
1588
1589 static void ttusb_dec_exit_filters(struct ttusb_dec *dec)
1590 {
1591 struct list_head *item;
1592 struct filter_info *finfo;
1593
1594 while ((item = dec->filter_info_list.next) != &dec->filter_info_list) {
1595 finfo = list_entry(item, struct filter_info, filter_info_list);
1596 list_del(&finfo->filter_info_list);
1597 kfree(finfo);
1598 }
1599 }
1600
1601 static int fe_send_command(struct dvb_frontend* fe, const u8 command,
1602 int param_length, const u8 params[],
1603 int *result_length, u8 cmd_result[])
1604 {
1605 struct ttusb_dec* dec = fe->dvb->priv;
1606 return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result);
1607 }
1608
1609 static struct ttusbdecfe_config fe_config = {
1610 .send_command = fe_send_command
1611 };
1612
1613 static int ttusb_dec_probe(struct usb_interface *intf,
1614 const struct usb_device_id *id)
1615 {
1616 struct usb_device *udev;
1617 struct ttusb_dec *dec;
1618
1619 dprintk("%s\n", __func__);
1620
1621 udev = interface_to_usbdev(intf);
1622
1623 if (!(dec = kzalloc(sizeof(struct ttusb_dec), GFP_KERNEL))) {
1624 printk("%s: couldn't allocate memory.\n", __func__);
1625 return -ENOMEM;
1626 }
1627
1628 usb_set_intfdata(intf, (void *)dec);
1629
1630 switch (le16_to_cpu(id->idProduct)) {
1631 case 0x1006:
1632 ttusb_dec_set_model(dec, TTUSB_DEC3000S);
1633 break;
1634
1635 case 0x1008:
1636 ttusb_dec_set_model(dec, TTUSB_DEC2000T);
1637 break;
1638
1639 case 0x1009:
1640 ttusb_dec_set_model(dec, TTUSB_DEC2540T);
1641 break;
1642 }
1643
1644 dec->udev = udev;
1645
1646 if (ttusb_dec_init_usb(dec))
1647 return 0;
1648 if (ttusb_dec_init_stb(dec)) {
1649 ttusb_dec_exit_usb(dec);
1650 return 0;
1651 }
1652 ttusb_dec_init_dvb(dec);
1653
1654 dec->adapter.priv = dec;
1655 switch (le16_to_cpu(id->idProduct)) {
1656 case 0x1006:
1657 dec->fe = ttusbdecfe_dvbs_attach(&fe_config);
1658 break;
1659
1660 case 0x1008:
1661 case 0x1009:
1662 dec->fe = ttusbdecfe_dvbt_attach(&fe_config);
1663 break;
1664 }
1665
1666 if (dec->fe == NULL) {
1667 printk("dvb-ttusb-dec: A frontend driver was not found for device %04x/%04x\n",
1668 le16_to_cpu(dec->udev->descriptor.idVendor),
1669 le16_to_cpu(dec->udev->descriptor.idProduct));
1670 } else {
1671 if (dvb_register_frontend(&dec->adapter, dec->fe)) {
1672 printk("budget-ci: Frontend registration failed!\n");
1673 if (dec->fe->ops.release)
1674 dec->fe->ops.release(dec->fe);
1675 dec->fe = NULL;
1676 }
1677 }
1678
1679 ttusb_dec_init_v_pes(dec);
1680 ttusb_dec_init_filters(dec);
1681 ttusb_dec_init_tasklet(dec);
1682
1683 dec->active = 1;
1684
1685 ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN);
1686
1687 if (enable_rc)
1688 ttusb_init_rc(dec);
1689
1690 return 0;
1691 }
1692
1693 static void ttusb_dec_disconnect(struct usb_interface *intf)
1694 {
1695 struct ttusb_dec *dec = usb_get_intfdata(intf);
1696
1697 usb_set_intfdata(intf, NULL);
1698
1699 dprintk("%s\n", __func__);
1700
1701 if (dec->active) {
1702 ttusb_dec_exit_tasklet(dec);
1703 ttusb_dec_exit_filters(dec);
1704 if(enable_rc)
1705 ttusb_dec_exit_rc(dec);
1706 ttusb_dec_exit_usb(dec);
1707 ttusb_dec_exit_dvb(dec);
1708 }
1709
1710 kfree(dec);
1711 }
1712
1713 static void ttusb_dec_set_model(struct ttusb_dec *dec,
1714 enum ttusb_dec_model model)
1715 {
1716 dec->model = model;
1717
1718 switch (model) {
1719 case TTUSB_DEC2000T:
1720 dec->model_name = "DEC2000-t";
1721 dec->firmware_name = "dvb-ttusb-dec-2000t.fw";
1722 break;
1723
1724 case TTUSB_DEC2540T:
1725 dec->model_name = "DEC2540-t";
1726 dec->firmware_name = "dvb-ttusb-dec-2540t.fw";
1727 break;
1728
1729 case TTUSB_DEC3000S:
1730 dec->model_name = "DEC3000-s";
1731 dec->firmware_name = "dvb-ttusb-dec-3000s.fw";
1732 break;
1733 }
1734 }
1735
1736 static struct usb_device_id ttusb_dec_table[] = {
1737 {USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */
1738 /*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */
1739 {USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */
1740 {USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */
1741 {}
1742 };
1743
1744 static struct usb_driver ttusb_dec_driver = {
1745 .name = "ttusb-dec",
1746 .probe = ttusb_dec_probe,
1747 .disconnect = ttusb_dec_disconnect,
1748 .id_table = ttusb_dec_table,
1749 };
1750
1751 static int __init ttusb_dec_init(void)
1752 {
1753 int result;
1754
1755 if ((result = usb_register(&ttusb_dec_driver)) < 0) {
1756 printk("%s: initialisation failed: error %d.\n", __func__,
1757 result);
1758 return result;
1759 }
1760
1761 return 0;
1762 }
1763
1764 static void __exit ttusb_dec_exit(void)
1765 {
1766 usb_deregister(&ttusb_dec_driver);
1767 }
1768
1769 module_init(ttusb_dec_init);
1770 module_exit(ttusb_dec_exit);
1771
1772 MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>");
1773 MODULE_DESCRIPTION(DRIVER_NAME);
1774 MODULE_LICENSE("GPL");
1775 MODULE_DEVICE_TABLE(usb, ttusb_dec_table);
Linux kernel - Deliverables
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