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 __be32 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 __be16 pcr = htons(dec->pid[DMX_PES_PCR]);
402 __be16 audio = htons(dec->pid[DMX_PES_AUDIO]);
403 __be16 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 __be16 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 __be16 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 if (!dec->iso_buffer) {
1161 dprintk("%s: pci_alloc_consistent - not enough memory\n",
1162 __func__);
1163 return -ENOMEM;
1164 }
1165
1166 memset(dec->iso_buffer, 0,
1167 ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT));
1168
1169 for (i = 0; i < ISO_BUF_COUNT; i++) {
1170 struct urb *urb;
1171
1172 if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) {
1173 ttusb_dec_free_iso_urbs(dec);
1174 return -ENOMEM;
1175 }
1176
1177 dec->iso_urb[i] = urb;
1178 }
1179
1180 ttusb_dec_setup_urbs(dec);
1181
1182 return 0;
1183 }
1184
1185 static void ttusb_dec_init_tasklet(struct ttusb_dec *dec)
1186 {
1187 spin_lock_init(&dec->urb_frame_list_lock);
1188 INIT_LIST_HEAD(&dec->urb_frame_list);
1189 tasklet_init(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list,
1190 (unsigned long)dec);
1191 }
1192
1193 static int ttusb_init_rc( struct ttusb_dec *dec)
1194 {
1195 struct input_dev *input_dev;
1196 u8 b[] = { 0x00, 0x01 };
1197 int i;
1198 int err;
1199
1200 usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys));
1201 strlcpy(dec->rc_phys, "/input0", sizeof(dec->rc_phys));
1202
1203 input_dev = input_allocate_device();
1204 if (!input_dev)
1205 return -ENOMEM;
1206
1207 input_dev->name = "ttusb_dec remote control";
1208 input_dev->phys = dec->rc_phys;
1209 input_dev->evbit[0] = BIT_MASK(EV_KEY);
1210 input_dev->keycodesize = sizeof(u16);
1211 input_dev->keycodemax = 0x1a;
1212 input_dev->keycode = rc_keys;
1213
1214 for (i = 0; i < ARRAY_SIZE(rc_keys); i++)
1215 set_bit(rc_keys[i], input_dev->keybit);
1216
1217 err = input_register_device(input_dev);
1218 if (err) {
1219 input_free_device(input_dev);
1220 return err;
1221 }
1222
1223 dec->rc_input_dev = input_dev;
1224 if (usb_submit_urb(dec->irq_urb, GFP_KERNEL))
1225 printk("%s: usb_submit_urb failed\n",__func__);
1226 /* enable irq pipe */
1227 ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL);
1228
1229 return 0;
1230 }
1231
1232 static void ttusb_dec_init_v_pes(struct ttusb_dec *dec)
1233 {
1234 dprintk("%s\n", __func__);
1235
1236 dec->v_pes[0] = 0x00;
1237 dec->v_pes[1] = 0x00;
1238 dec->v_pes[2] = 0x01;
1239 dec->v_pes[3] = 0xe0;
1240 }
1241
1242 static int ttusb_dec_init_usb(struct ttusb_dec *dec)
1243 {
1244 dprintk("%s\n", __func__);
1245
1246 mutex_init(&dec->usb_mutex);
1247 mutex_init(&dec->iso_mutex);
1248
1249 dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE);
1250 dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE);
1251 dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE);
1252 dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE);
1253 dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE);
1254
1255 if(enable_rc) {
1256 dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
1257 if(!dec->irq_urb) {
1258 return -ENOMEM;
1259 }
1260 dec->irq_buffer = usb_buffer_alloc(dec->udev,IRQ_PACKET_SIZE,
1261 GFP_ATOMIC, &dec->irq_dma_handle);
1262 if(!dec->irq_buffer) {
1263 usb_free_urb(dec->irq_urb);
1264 return -ENOMEM;
1265 }
1266 usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe,
1267 dec->irq_buffer, IRQ_PACKET_SIZE,
1268 ttusb_dec_handle_irq, dec, 1);
1269 dec->irq_urb->transfer_dma = dec->irq_dma_handle;
1270 dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1271 }
1272
1273 return ttusb_dec_alloc_iso_urbs(dec);
1274 }
1275
1276 static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
1277 {
1278 int i, j, actual_len, result, size, trans_count;
1279 u8 b0[] = { 0x00, 0x00, 0x00, 0x00,
1280 0x00, 0x00, 0x00, 0x00,
1281 0x61, 0x00 };
1282 u8 b1[] = { 0x61 };
1283 u8 *b;
1284 char idstring[21];
1285 const u8 *firmware = NULL;
1286 size_t firmware_size = 0;
1287 u16 firmware_csum = 0;
1288 __be16 firmware_csum_ns;
1289 __be32 firmware_size_nl;
1290 u32 crc32_csum, crc32_check;
1291 __be32 tmp;
1292 const struct firmware *fw_entry = NULL;
1293
1294 dprintk("%s\n", __func__);
1295
1296 if (request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev)) {
1297 printk(KERN_ERR "%s: Firmware (%s) unavailable.\n",
1298 __func__, dec->firmware_name);
1299 return 1;
1300 }
1301
1302 firmware = fw_entry->data;
1303 firmware_size = fw_entry->size;
1304
1305 if (firmware_size < 60) {
1306 printk("%s: firmware size too small for DSP code (%zu < 60).\n",
1307 __func__, firmware_size);
1308 release_firmware(fw_entry);
1309 return -1;
1310 }
1311
1312 /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored
1313 at offset 56 of file, so use it to check if the firmware file is
1314 valid. */
1315 crc32_csum = crc32(~0L, firmware, 56) ^ ~0L;
1316 memcpy(&tmp, &firmware[56], 4);
1317 crc32_check = ntohl(tmp);
1318 if (crc32_csum != crc32_check) {
1319 printk("%s: crc32 check of DSP code failed (calculated "
1320 "0x%08x != 0x%08x in file), file invalid.\n",
1321 __func__, crc32_csum, crc32_check);
1322 release_firmware(fw_entry);
1323 return -1;
1324 }
1325 memcpy(idstring, &firmware[36], 20);
1326 idstring[20] = '\0';
1327 printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring);
1328
1329 firmware_size_nl = htonl(firmware_size);
1330 memcpy(b0, &firmware_size_nl, 4);
1331 firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0;
1332 firmware_csum_ns = htons(firmware_csum);
1333 memcpy(&b0[6], &firmware_csum_ns, 2);
1334
1335 result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL);
1336
1337 if (result) {
1338 release_firmware(fw_entry);
1339 return result;
1340 }
1341
1342 trans_count = 0;
1343 j = 0;
1344
1345 b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL);
1346 if (b == NULL) {
1347 release_firmware(fw_entry);
1348 return -ENOMEM;
1349 }
1350
1351 for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) {
1352 size = firmware_size - i;
1353 if (size > COMMAND_PACKET_SIZE)
1354 size = COMMAND_PACKET_SIZE;
1355
1356 b[j + 0] = 0xaa;
1357 b[j + 1] = trans_count++;
1358 b[j + 2] = 0xf0;
1359 b[j + 3] = size;
1360 memcpy(&b[j + 4], &firmware[i], size);
1361
1362 j += COMMAND_PACKET_SIZE + 4;
1363
1364 if (j >= ARM_PACKET_SIZE) {
1365 result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
1366 ARM_PACKET_SIZE, &actual_len,
1367 100);
1368 j = 0;
1369 } else if (size < COMMAND_PACKET_SIZE) {
1370 result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
1371 j - COMMAND_PACKET_SIZE + size,
1372 &actual_len, 100);
1373 }
1374 }
1375
1376 result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL);
1377
1378 release_firmware(fw_entry);
1379 kfree(b);
1380
1381 return result;
1382 }
1383
1384 static int ttusb_dec_init_stb(struct ttusb_dec *dec)
1385 {
1386 int result;
1387 unsigned int mode = 0, model = 0, version = 0;
1388
1389 dprintk("%s\n", __func__);
1390
1391 result = ttusb_dec_get_stb_state(dec, &mode, &model, &version);
1392
1393 if (!result) {
1394 if (!mode) {
1395 if (version == 0xABCDEFAB)
1396 printk(KERN_INFO "ttusb_dec: no version "
1397 "info in Firmware\n");
1398 else
1399 printk(KERN_INFO "ttusb_dec: Firmware "
1400 "%x.%02x%c%c\n",
1401 version >> 24, (version >> 16) & 0xff,
1402 (version >> 8) & 0xff, version & 0xff);
1403
1404 result = ttusb_dec_boot_dsp(dec);
1405 if (result)
1406 return result;
1407 else
1408 return 1;
1409 } else {
1410 /* We can't trust the USB IDs that some firmwares
1411 give the box */
1412 switch (model) {
1413 case 0x00070001:
1414 case 0x00070008:
1415 case 0x0007000c:
1416 ttusb_dec_set_model(dec, TTUSB_DEC3000S);
1417 break;
1418 case 0x00070009:
1419 case 0x00070013:
1420 ttusb_dec_set_model(dec, TTUSB_DEC2000T);
1421 break;
1422 case 0x00070011:
1423 ttusb_dec_set_model(dec, TTUSB_DEC2540T);
1424 break;
1425 default:
1426 printk(KERN_ERR "%s: unknown model returned "
1427 "by firmware (%08x) - please report\n",
1428 __func__, model);
1429 return -1;
1430 break;
1431 }
1432
1433 if (version >= 0x01770000)
1434 dec->can_playback = 1;
1435
1436 return 0;
1437 }
1438 }
1439 else
1440 return result;
1441 }
1442
1443 static int ttusb_dec_init_dvb(struct ttusb_dec *dec)
1444 {
1445 int result;
1446
1447 dprintk("%s\n", __func__);
1448
1449 if ((result = dvb_register_adapter(&dec->adapter,
1450 dec->model_name, THIS_MODULE,
1451 &dec->udev->dev,
1452 adapter_nr)) < 0) {
1453 printk("%s: dvb_register_adapter failed: error %d\n",
1454 __func__, result);
1455
1456 return result;
1457 }
1458
1459 dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
1460
1461 dec->demux.priv = (void *)dec;
1462 dec->demux.filternum = 31;
1463 dec->demux.feednum = 31;
1464 dec->demux.start_feed = ttusb_dec_start_feed;
1465 dec->demux.stop_feed = ttusb_dec_stop_feed;
1466 dec->demux.write_to_decoder = NULL;
1467
1468 if ((result = dvb_dmx_init(&dec->demux)) < 0) {
1469 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1470 result);
1471
1472 dvb_unregister_adapter(&dec->adapter);
1473
1474 return result;
1475 }
1476
1477 dec->dmxdev.filternum = 32;
1478 dec->dmxdev.demux = &dec->demux.dmx;
1479 dec->dmxdev.capabilities = 0;
1480
1481 if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) {
1482 printk("%s: dvb_dmxdev_init failed: error %d\n",
1483 __func__, result);
1484
1485 dvb_dmx_release(&dec->demux);
1486 dvb_unregister_adapter(&dec->adapter);
1487
1488 return result;
1489 }
1490
1491 dec->frontend.source = DMX_FRONTEND_0;
1492
1493 if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx,
1494 &dec->frontend)) < 0) {
1495 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1496 result);
1497
1498 dvb_dmxdev_release(&dec->dmxdev);
1499 dvb_dmx_release(&dec->demux);
1500 dvb_unregister_adapter(&dec->adapter);
1501
1502 return result;
1503 }
1504
1505 if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx,
1506 &dec->frontend)) < 0) {
1507 printk("%s: dvb_dmx_init failed: error %d\n", __func__,
1508 result);
1509
1510 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
1511 dvb_dmxdev_release(&dec->dmxdev);
1512 dvb_dmx_release(&dec->demux);
1513 dvb_unregister_adapter(&dec->adapter);
1514
1515 return result;
1516 }
1517
1518 dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx);
1519
1520 return 0;
1521 }
1522
1523 static void ttusb_dec_exit_dvb(struct ttusb_dec *dec)
1524 {
1525 dprintk("%s\n", __func__);
1526
1527 dvb_net_release(&dec->dvb_net);
1528 dec->demux.dmx.close(&dec->demux.dmx);
1529 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
1530 dvb_dmxdev_release(&dec->dmxdev);
1531 dvb_dmx_release(&dec->demux);
1532 if (dec->fe) {
1533 dvb_unregister_frontend(dec->fe);
1534 if (dec->fe->ops.release)
1535 dec->fe->ops.release(dec->fe);
1536 }
1537 dvb_unregister_adapter(&dec->adapter);
1538 }
1539
1540 static void ttusb_dec_exit_rc(struct ttusb_dec *dec)
1541 {
1542
1543 dprintk("%s\n", __func__);
1544 /* we have to check whether the irq URB is already submitted.
1545 * As the irq is submitted after the interface is changed,
1546 * this is the best method i figured out.
1547 * Any others?*/
1548 if (dec->interface == TTUSB_DEC_INTERFACE_IN)
1549 usb_kill_urb(dec->irq_urb);
1550
1551 usb_free_urb(dec->irq_urb);
1552
1553 usb_buffer_free(dec->udev,IRQ_PACKET_SIZE,
1554 dec->irq_buffer, dec->irq_dma_handle);
1555
1556 if (dec->rc_input_dev) {
1557 input_unregister_device(dec->rc_input_dev);
1558 dec->rc_input_dev = NULL;
1559 }
1560 }
1561
1562
1563 static void ttusb_dec_exit_usb(struct ttusb_dec *dec)
1564 {
1565 int i;
1566
1567 dprintk("%s\n", __func__);
1568
1569 dec->iso_stream_count = 0;
1570
1571 for (i = 0; i < ISO_BUF_COUNT; i++)
1572 usb_kill_urb(dec->iso_urb[i]);
1573
1574 ttusb_dec_free_iso_urbs(dec);
1575 }
1576
1577 static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec)
1578 {
1579 struct list_head *item;
1580 struct urb_frame *frame;
1581
1582 tasklet_kill(&dec->urb_tasklet);
1583
1584 while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) {
1585 frame = list_entry(item, struct urb_frame, urb_frame_list);
1586 list_del(&frame->urb_frame_list);
1587 kfree(frame);
1588 }
1589 }
1590
1591 static void ttusb_dec_init_filters(struct ttusb_dec *dec)
1592 {
1593 INIT_LIST_HEAD(&dec->filter_info_list);
1594 spin_lock_init(&dec->filter_info_list_lock);
1595 }
1596
1597 static void ttusb_dec_exit_filters(struct ttusb_dec *dec)
1598 {
1599 struct list_head *item;
1600 struct filter_info *finfo;
1601
1602 while ((item = dec->filter_info_list.next) != &dec->filter_info_list) {
1603 finfo = list_entry(item, struct filter_info, filter_info_list);
1604 list_del(&finfo->filter_info_list);
1605 kfree(finfo);
1606 }
1607 }
1608
1609 static int fe_send_command(struct dvb_frontend* fe, const u8 command,
1610 int param_length, const u8 params[],
1611 int *result_length, u8 cmd_result[])
1612 {
1613 struct ttusb_dec* dec = fe->dvb->priv;
1614 return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result);
1615 }
1616
1617 static struct ttusbdecfe_config fe_config = {
1618 .send_command = fe_send_command
1619 };
1620
1621 static int ttusb_dec_probe(struct usb_interface *intf,
1622 const struct usb_device_id *id)
1623 {
1624 struct usb_device *udev;
1625 struct ttusb_dec *dec;
1626
1627 dprintk("%s\n", __func__);
1628
1629 udev = interface_to_usbdev(intf);
1630
1631 if (!(dec = kzalloc(sizeof(struct ttusb_dec), GFP_KERNEL))) {
1632 printk("%s: couldn't allocate memory.\n", __func__);
1633 return -ENOMEM;
1634 }
1635
1636 usb_set_intfdata(intf, (void *)dec);
1637
1638 switch (id->idProduct) {
1639 case 0x1006:
1640 ttusb_dec_set_model(dec, TTUSB_DEC3000S);
1641 break;
1642
1643 case 0x1008:
1644 ttusb_dec_set_model(dec, TTUSB_DEC2000T);
1645 break;
1646
1647 case 0x1009:
1648 ttusb_dec_set_model(dec, TTUSB_DEC2540T);
1649 break;
1650 }
1651
1652 dec->udev = udev;
1653
1654 if (ttusb_dec_init_usb(dec))
1655 return 0;
1656 if (ttusb_dec_init_stb(dec)) {
1657 ttusb_dec_exit_usb(dec);
1658 return 0;
1659 }
1660 ttusb_dec_init_dvb(dec);
1661
1662 dec->adapter.priv = dec;
1663 switch (id->idProduct) {
1664 case 0x1006:
1665 dec->fe = ttusbdecfe_dvbs_attach(&fe_config);
1666 break;
1667
1668 case 0x1008:
1669 case 0x1009:
1670 dec->fe = ttusbdecfe_dvbt_attach(&fe_config);
1671 break;
1672 }
1673
1674 if (dec->fe == NULL) {
1675 printk("dvb-ttusb-dec: A frontend driver was not found for device [%04x:%04x]\n",
1676 le16_to_cpu(dec->udev->descriptor.idVendor),
1677 le16_to_cpu(dec->udev->descriptor.idProduct));
1678 } else {
1679 if (dvb_register_frontend(&dec->adapter, dec->fe)) {
1680 printk("budget-ci: Frontend registration failed!\n");
1681 if (dec->fe->ops.release)
1682 dec->fe->ops.release(dec->fe);
1683 dec->fe = NULL;
1684 }
1685 }
1686
1687 ttusb_dec_init_v_pes(dec);
1688 ttusb_dec_init_filters(dec);
1689 ttusb_dec_init_tasklet(dec);
1690
1691 dec->active = 1;
1692
1693 ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN);
1694
1695 if (enable_rc)
1696 ttusb_init_rc(dec);
1697
1698 return 0;
1699 }
1700
1701 static void ttusb_dec_disconnect(struct usb_interface *intf)
1702 {
1703 struct ttusb_dec *dec = usb_get_intfdata(intf);
1704
1705 usb_set_intfdata(intf, NULL);
1706
1707 dprintk("%s\n", __func__);
1708
1709 if (dec->active) {
1710 ttusb_dec_exit_tasklet(dec);
1711 ttusb_dec_exit_filters(dec);
1712 if(enable_rc)
1713 ttusb_dec_exit_rc(dec);
1714 ttusb_dec_exit_usb(dec);
1715 ttusb_dec_exit_dvb(dec);
1716 }
1717
1718 kfree(dec);
1719 }
1720
1721 static void ttusb_dec_set_model(struct ttusb_dec *dec,
1722 enum ttusb_dec_model model)
1723 {
1724 dec->model = model;
1725
1726 switch (model) {
1727 case TTUSB_DEC2000T:
1728 dec->model_name = "DEC2000-t";
1729 dec->firmware_name = "dvb-ttusb-dec-2000t.fw";
1730 break;
1731
1732 case TTUSB_DEC2540T:
1733 dec->model_name = "DEC2540-t";
1734 dec->firmware_name = "dvb-ttusb-dec-2540t.fw";
1735 break;
1736
1737 case TTUSB_DEC3000S:
1738 dec->model_name = "DEC3000-s";
1739 dec->firmware_name = "dvb-ttusb-dec-3000s.fw";
1740 break;
1741 }
1742 }
1743
1744 static struct usb_device_id ttusb_dec_table[] = {
1745 {USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */
1746 /*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */
1747 {USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */
1748 {USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */
1749 {}
1750 };
1751
1752 static struct usb_driver ttusb_dec_driver = {
1753 .name = "ttusb-dec",
1754 .probe = ttusb_dec_probe,
1755 .disconnect = ttusb_dec_disconnect,
1756 .id_table = ttusb_dec_table,
1757 };
1758
1759 static int __init ttusb_dec_init(void)
1760 {
1761 int result;
1762
1763 if ((result = usb_register(&ttusb_dec_driver)) < 0) {
1764 printk("%s: initialisation failed: error %d.\n", __func__,
1765 result);
1766 return result;
1767 }
1768
1769 return 0;
1770 }
1771
1772 static void __exit ttusb_dec_exit(void)
1773 {
1774 usb_deregister(&ttusb_dec_driver);
1775 }
1776
1777 module_init(ttusb_dec_init);
1778 module_exit(ttusb_dec_exit);
1779
1780 MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>");
1781 MODULE_DESCRIPTION(DRIVER_NAME);
1782 MODULE_LICENSE("GPL");
1783 MODULE_DEVICE_TABLE(usb, ttusb_dec_table);
1784
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