1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * TTUSB DEC Driver 4 * 5 * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org> 6 * IR support by Peter Beutner <p.beutner@gmx.net> 7 */ 8 9#include <linux/list.h> 10#include <linux/module.h> 11#include <linux/pci.h> 12#include <linux/slab.h> 13#include <linux/spinlock.h> 14#include <linux/usb.h> 15#include <linux/interrupt.h> 16#include <linux/firmware.h> 17#include <linux/crc32.h> 18#include <linux/init.h> 19#include <linux/input.h> 20 21#include <linux/mutex.h> 22 23#include <media/dmxdev.h> 24#include <media/dvb_demux.h> 25#include <media/dvb_frontend.h> 26#include <media/dvb_net.h> 27#include "ttusbdecfe.h" 28 29static int debug; 30static int output_pva; 31static int enable_rc; 32 33module_param(debug, int, 0644); 34MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); 35module_param(output_pva, int, 0444); 36MODULE_PARM_DESC(output_pva, "Output PVA from dvr device (default:off)"); 37module_param(enable_rc, int, 0644); 38MODULE_PARM_DESC(enable_rc, "Turn on/off IR remote control(default: off)"); 39 40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 41 42#define dprintk if (debug) printk 43 44#define DRIVER_NAME "TechnoTrend/Hauppauge DEC USB" 45 46#define COMMAND_PIPE 0x03 47#define RESULT_PIPE 0x04 48#define IN_PIPE 0x08 49#define OUT_PIPE 0x07 50#define IRQ_PIPE 0x0A 51 52#define COMMAND_PACKET_SIZE 0x3c 53#define ARM_PACKET_SIZE 0x1000 54#define IRQ_PACKET_SIZE 0x8 55 56#define ISO_BUF_COUNT 0x04 57#define FRAMES_PER_ISO_BUF 0x04 58#define ISO_FRAME_SIZE 0x0380 59 60#define MAX_PVA_LENGTH 6144 61 62enum ttusb_dec_model { 63 TTUSB_DEC2000T, 64 TTUSB_DEC2540T, 65 TTUSB_DEC3000S 66}; 67 68enum ttusb_dec_packet_type { 69 TTUSB_DEC_PACKET_PVA, 70 TTUSB_DEC_PACKET_SECTION, 71 TTUSB_DEC_PACKET_EMPTY 72}; 73 74enum ttusb_dec_interface { 75 TTUSB_DEC_INTERFACE_INITIAL, 76 TTUSB_DEC_INTERFACE_IN, 77 TTUSB_DEC_INTERFACE_OUT 78}; 79 80typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *); 81 82struct dvb_filter_pes2ts { 83 unsigned char buf[188]; 84 unsigned char cc; 85 dvb_filter_pes2ts_cb_t *cb; 86 void *priv; 87}; 88 89struct ttusb_dec { 90 enum ttusb_dec_model model; 91 char *model_name; 92 char *firmware_name; 93 int can_playback; 94 95 /* DVB bits */ 96 struct dvb_adapter adapter; 97 struct dmxdev dmxdev; 98 struct dvb_demux demux; 99 struct dmx_frontend frontend; 100 struct dvb_net dvb_net; 101 struct dvb_frontend* fe; 102 103 u16 pid[DMX_PES_OTHER]; 104 105 /* USB bits */ 106 struct usb_device *udev; 107 u8 trans_count; 108 unsigned int command_pipe; 109 unsigned int result_pipe; 110 unsigned int in_pipe; 111 unsigned int out_pipe; 112 unsigned int irq_pipe; 113 enum ttusb_dec_interface interface; 114 struct mutex usb_mutex; 115 116 void *irq_buffer; 117 struct urb *irq_urb; 118 dma_addr_t irq_dma_handle; 119 void *iso_buffer; 120 struct urb *iso_urb[ISO_BUF_COUNT]; 121 int iso_stream_count; 122 struct mutex iso_mutex; 123 124 u8 packet[MAX_PVA_LENGTH + 4]; 125 enum ttusb_dec_packet_type packet_type; 126 int packet_state; 127 int packet_length; 128 int packet_payload_length; 129 u16 next_packet_id; 130 131 int pva_stream_count; 132 int filter_stream_count; 133 134 struct dvb_filter_pes2ts a_pes2ts; 135 struct dvb_filter_pes2ts v_pes2ts; 136 137 u8 v_pes[16 + MAX_PVA_LENGTH]; 138 int v_pes_length; 139 int v_pes_postbytes; 140 141 struct list_head urb_frame_list; 142 struct tasklet_struct urb_tasklet; 143 spinlock_t urb_frame_list_lock; 144 145 struct dvb_demux_filter *audio_filter; 146 struct dvb_demux_filter *video_filter; 147 struct list_head filter_info_list; 148 spinlock_t filter_info_list_lock; 149 150 struct input_dev *rc_input_dev; 151 char rc_phys[64]; 152 153 int active; /* Loaded successfully */ 154}; 155 156struct urb_frame { 157 u8 data[ISO_FRAME_SIZE]; 158 int length; 159 struct list_head urb_frame_list; 160}; 161 162struct filter_info { 163 u8 stream_id; 164 struct dvb_demux_filter *filter; 165 struct list_head filter_info_list; 166}; 167 168static u16 rc_keys[] = { 169 KEY_POWER, 170 KEY_MUTE, 171 KEY_1, 172 KEY_2, 173 KEY_3, 174 KEY_4, 175 KEY_5, 176 KEY_6, 177 KEY_7, 178 KEY_8, 179 KEY_9, 180 KEY_0, 181 KEY_CHANNELUP, 182 KEY_VOLUMEDOWN, 183 KEY_OK, 184 KEY_VOLUMEUP, 185 KEY_CHANNELDOWN, 186 KEY_PREVIOUS, 187 KEY_ESC, 188 KEY_RED, 189 KEY_GREEN, 190 KEY_YELLOW, 191 KEY_BLUE, 192 KEY_OPTION, 193 KEY_M, 194 KEY_RADIO 195}; 196 197static void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, 198 unsigned short pid, 199 dvb_filter_pes2ts_cb_t *cb, void *priv) 200{ 201 unsigned char *buf=p2ts->buf; 202 203 buf[0]=0x47; 204 buf[1]=(pid>>8); 205 buf[2]=pid&0xff; 206 p2ts->cc=0; 207 p2ts->cb=cb; 208 p2ts->priv=priv; 209} 210 211static int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, 212 unsigned char *pes, int len, int payload_start) 213{ 214 unsigned char *buf=p2ts->buf; 215 int ret=0, rest; 216 217 //len=6+((pes[4]<<8)|pes[5]); 218 219 if (payload_start) 220 buf[1]|=0x40; 221 else 222 buf[1]&=~0x40; 223 while (len>=184) { 224 buf[3]=0x10|((p2ts->cc++)&0x0f); 225 memcpy(buf+4, pes, 184); 226 if ((ret=p2ts->cb(p2ts->priv, buf))) 227 return ret; 228 len-=184; pes+=184; 229 buf[1]&=~0x40; 230 } 231 if (!len) 232 return 0; 233 buf[3]=0x30|((p2ts->cc++)&0x0f); 234 rest=183-len; 235 if (rest) { 236 buf[5]=0x00; 237 if (rest-1) 238 memset(buf+6, 0xff, rest-1); 239 } 240 buf[4]=rest; 241 memcpy(buf+5+rest, pes, len); 242 return p2ts->cb(p2ts->priv, buf); 243} 244 245static void ttusb_dec_set_model(struct ttusb_dec *dec, 246 enum ttusb_dec_model model); 247 248static void ttusb_dec_handle_irq( struct urb *urb) 249{ 250 struct ttusb_dec *dec = urb->context; 251 char *buffer = dec->irq_buffer; 252 int retval; 253 int index = buffer[4]; 254 255 switch(urb->status) { 256 case 0: /*success*/ 257 break; 258 case -ECONNRESET: 259 case -ENOENT: 260 case -ESHUTDOWN: 261 case -ETIME: 262 /* this urb is dead, cleanup */ 263 dprintk("%s:urb shutting down with status: %d\n", 264 __func__, urb->status); 265 return; 266 default: 267 dprintk("%s:nonzero status received: %d\n", 268 __func__,urb->status); 269 goto exit; 270 } 271 272 if ((buffer[0] == 0x1) && (buffer[2] == 0x15)) { 273 /* 274 * IR - Event 275 * 276 * this is an fact a bit too simple implementation; 277 * the box also reports a keyrepeat signal 278 * (with buffer[3] == 0x40) in an interval of ~100ms. 279 * But to handle this correctly we had to imlemenent some 280 * kind of timer which signals a 'key up' event if no 281 * keyrepeat signal is received for lets say 200ms. 282 * this should/could be added later ... 283 * for now lets report each signal as a key down and up 284 */ 285 if (index - 1 < ARRAY_SIZE(rc_keys)) { 286 dprintk("%s:rc signal:%d\n", __func__, index); 287 input_report_key(dec->rc_input_dev, rc_keys[index - 1], 1); 288 input_sync(dec->rc_input_dev); 289 input_report_key(dec->rc_input_dev, rc_keys[index - 1], 0); 290 input_sync(dec->rc_input_dev); 291 } 292 } 293 294exit: 295 retval = usb_submit_urb(urb, GFP_ATOMIC); 296 if (retval) 297 printk("%s - usb_commit_urb failed with result: %d\n", 298 __func__, retval); 299} 300 301static u16 crc16(u16 crc, const u8 *buf, size_t len) 302{ 303 u16 tmp; 304 305 while (len--) { 306 crc ^= *buf++; 307 crc ^= (u8)crc >> 4; 308 tmp = (u8)crc; 309 crc ^= (tmp ^ (tmp << 1)) << 4; 310 } 311 return crc; 312} 313 314static int ttusb_dec_send_command(struct ttusb_dec *dec, const u8 command, 315 int param_length, const u8 params[], 316 int *result_length, u8 cmd_result[]) 317{ 318 int result, actual_len; 319 u8 *b; 320 321 dprintk("%s\n", __func__); 322 323 b = kzalloc(COMMAND_PACKET_SIZE + 4, GFP_KERNEL); 324 if (!b) 325 return -ENOMEM; 326 327 if ((result = mutex_lock_interruptible(&dec->usb_mutex))) { 328 kfree(b); 329 printk("%s: Failed to lock usb mutex.\n", __func__); 330 return result; 331 } 332 333 b[0] = 0xaa; 334 b[1] = ++dec->trans_count; 335 b[2] = command; 336 b[3] = param_length; 337 338 if (params) 339 memcpy(&b[4], params, param_length); 340 341 if (debug) { 342 printk(KERN_DEBUG "%s: command: %*ph\n", 343 __func__, param_length, b); 344 } 345 346 result = usb_bulk_msg(dec->udev, dec->command_pipe, b, 347 COMMAND_PACKET_SIZE + 4, &actual_len, 1000); 348 349 if (result) { 350 printk("%s: command bulk message failed: error %d\n", 351 __func__, result); 352 mutex_unlock(&dec->usb_mutex); 353 kfree(b); 354 return result; 355 } 356 357 result = usb_bulk_msg(dec->udev, dec->result_pipe, b, 358 COMMAND_PACKET_SIZE + 4, &actual_len, 1000); 359 360 if (result) { 361 printk("%s: result bulk message failed: error %d\n", 362 __func__, result); 363 mutex_unlock(&dec->usb_mutex); 364 kfree(b); 365 return result; 366 } else { 367 if (debug) { 368 printk(KERN_DEBUG "%s: result: %*ph\n", 369 __func__, actual_len, b); 370 } 371 372 if (result_length) 373 *result_length = b[3]; 374 if (cmd_result && b[3] > 0) 375 memcpy(cmd_result, &b[4], b[3]); 376 377 mutex_unlock(&dec->usb_mutex); 378 379 kfree(b); 380 return 0; 381 } 382} 383 384static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode, 385 unsigned int *model, unsigned int *version) 386{ 387 u8 c[COMMAND_PACKET_SIZE]; 388 int c_length; 389 int result; 390 __be32 tmp; 391 392 dprintk("%s\n", __func__); 393 394 result = ttusb_dec_send_command(dec, 0x08, 0, NULL, &c_length, c); 395 if (result) 396 return result; 397 398 if (c_length >= 0x0c) { 399 if (mode != NULL) { 400 memcpy(&tmp, c, 4); 401 *mode = ntohl(tmp); 402 } 403 if (model != NULL) { 404 memcpy(&tmp, &c[4], 4); 405 *model = ntohl(tmp); 406 } 407 if (version != NULL) { 408 memcpy(&tmp, &c[8], 4); 409 *version = ntohl(tmp); 410 } 411 return 0; 412 } else { 413 return -ENOENT; 414 } 415} 416 417static int ttusb_dec_audio_pes2ts_cb(void *priv, unsigned char *data) 418{ 419 struct ttusb_dec *dec = priv; 420 421 dec->audio_filter->feed->cb.ts(data, 188, NULL, 0, 422 &dec->audio_filter->feed->feed.ts, NULL); 423 424 return 0; 425} 426 427static int ttusb_dec_video_pes2ts_cb(void *priv, unsigned char *data) 428{ 429 struct ttusb_dec *dec = priv; 430 431 dec->video_filter->feed->cb.ts(data, 188, NULL, 0, 432 &dec->video_filter->feed->feed.ts, NULL); 433 434 return 0; 435} 436 437static void ttusb_dec_set_pids(struct ttusb_dec *dec) 438{ 439 u8 b[] = { 0x00, 0x00, 0x00, 0x00, 440 0x00, 0x00, 0xff, 0xff, 441 0xff, 0xff, 0xff, 0xff }; 442 443 __be16 pcr = htons(dec->pid[DMX_PES_PCR]); 444 __be16 audio = htons(dec->pid[DMX_PES_AUDIO]); 445 __be16 video = htons(dec->pid[DMX_PES_VIDEO]); 446 447 dprintk("%s\n", __func__); 448 449 memcpy(&b[0], &pcr, 2); 450 memcpy(&b[2], &audio, 2); 451 memcpy(&b[4], &video, 2); 452 453 ttusb_dec_send_command(dec, 0x50, sizeof(b), b, NULL, NULL); 454 455 dvb_filter_pes2ts_init(&dec->a_pes2ts, dec->pid[DMX_PES_AUDIO], 456 ttusb_dec_audio_pes2ts_cb, dec); 457 dvb_filter_pes2ts_init(&dec->v_pes2ts, dec->pid[DMX_PES_VIDEO], 458 ttusb_dec_video_pes2ts_cb, dec); 459 dec->v_pes_length = 0; 460 dec->v_pes_postbytes = 0; 461} 462 463static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length) 464{ 465 if (length < 8) { 466 printk("%s: packet too short - discarding\n", __func__); 467 return; 468 } 469 470 if (length > 8 + MAX_PVA_LENGTH) { 471 printk("%s: packet too long - discarding\n", __func__); 472 return; 473 } 474 475 switch (pva[2]) { 476 477 case 0x01: { /* VideoStream */ 478 int prebytes = pva[5] & 0x03; 479 int postbytes = (pva[5] & 0x0c) >> 2; 480 __be16 v_pes_payload_length; 481 482 if (output_pva) { 483 dec->video_filter->feed->cb.ts(pva, length, NULL, 0, 484 &dec->video_filter->feed->feed.ts, NULL); 485 return; 486 } 487 488 if (dec->v_pes_postbytes > 0 && 489 dec->v_pes_postbytes == prebytes) { 490 memcpy(&dec->v_pes[dec->v_pes_length], 491 &pva[12], prebytes); 492 493 dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes, 494 dec->v_pes_length + prebytes, 1); 495 } 496 497 if (pva[5] & 0x10) { 498 dec->v_pes[7] = 0x80; 499 dec->v_pes[8] = 0x05; 500 501 dec->v_pes[9] = 0x21 | ((pva[8] & 0xc0) >> 5); 502 dec->v_pes[10] = ((pva[8] & 0x3f) << 2) | 503 ((pva[9] & 0xc0) >> 6); 504 dec->v_pes[11] = 0x01 | 505 ((pva[9] & 0x3f) << 2) | 506 ((pva[10] & 0x80) >> 6); 507 dec->v_pes[12] = ((pva[10] & 0x7f) << 1) | 508 ((pva[11] & 0xc0) >> 7); 509 dec->v_pes[13] = 0x01 | ((pva[11] & 0x7f) << 1); 510 511 memcpy(&dec->v_pes[14], &pva[12 + prebytes], 512 length - 12 - prebytes); 513 dec->v_pes_length = 14 + length - 12 - prebytes; 514 } else { 515 dec->v_pes[7] = 0x00; 516 dec->v_pes[8] = 0x00; 517 518 memcpy(&dec->v_pes[9], &pva[8], length - 8); 519 dec->v_pes_length = 9 + length - 8; 520 } 521 522 dec->v_pes_postbytes = postbytes; 523 524 if (dec->v_pes[9 + dec->v_pes[8]] == 0x00 && 525 dec->v_pes[10 + dec->v_pes[8]] == 0x00 && 526 dec->v_pes[11 + dec->v_pes[8]] == 0x01) 527 dec->v_pes[6] = 0x84; 528 else 529 dec->v_pes[6] = 0x80; 530 531 v_pes_payload_length = htons(dec->v_pes_length - 6 + 532 postbytes); 533 memcpy(&dec->v_pes[4], &v_pes_payload_length, 2); 534 535 if (postbytes == 0) 536 dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes, 537 dec->v_pes_length, 1); 538 539 break; 540 } 541 542 case 0x02: /* MainAudioStream */ 543 if (output_pva) { 544 dec->audio_filter->feed->cb.ts(pva, length, NULL, 0, 545 &dec->audio_filter->feed->feed.ts, NULL); 546 return; 547 } 548 549 dvb_filter_pes2ts(&dec->a_pes2ts, &pva[8], length - 8, 550 pva[5] & 0x10); 551 break; 552 553 default: 554 printk("%s: unknown PVA type: %02x.\n", __func__, 555 pva[2]); 556 break; 557 } 558} 559 560static void ttusb_dec_process_filter(struct ttusb_dec *dec, u8 *packet, 561 int length) 562{ 563 struct list_head *item; 564 struct filter_info *finfo; 565 struct dvb_demux_filter *filter = NULL; 566 unsigned long flags; 567 u8 sid; 568 569 sid = packet[1]; 570 spin_lock_irqsave(&dec->filter_info_list_lock, flags); 571 for (item = dec->filter_info_list.next; item != &dec->filter_info_list; 572 item = item->next) { 573 finfo = list_entry(item, struct filter_info, filter_info_list); 574 if (finfo->stream_id == sid) { 575 filter = finfo->filter; 576 break; 577 } 578 } 579 spin_unlock_irqrestore(&dec->filter_info_list_lock, flags); 580 581 if (filter) 582 filter->feed->cb.sec(&packet[2], length - 2, NULL, 0, 583 &filter->filter, NULL); 584} 585 586static void ttusb_dec_process_packet(struct ttusb_dec *dec) 587{ 588 int i; 589 u16 csum = 0; 590 u16 packet_id; 591 592 if (dec->packet_length % 2) { 593 printk("%s: odd sized packet - discarding\n", __func__); 594 return; 595 } 596 597 for (i = 0; i < dec->packet_length; i += 2) 598 csum ^= ((dec->packet[i] << 8) + dec->packet[i + 1]); 599 600 if (csum) { 601 printk("%s: checksum failed - discarding\n", __func__); 602 return; 603 } 604 605 packet_id = dec->packet[dec->packet_length - 4] << 8; 606 packet_id += dec->packet[dec->packet_length - 3]; 607 608 if ((packet_id != dec->next_packet_id) && dec->next_packet_id) { 609 printk("%s: warning: lost packets between %u and %u\n", 610 __func__, dec->next_packet_id - 1, packet_id); 611 } 612 613 if (packet_id == 0xffff) 614 dec->next_packet_id = 0x8000; 615 else 616 dec->next_packet_id = packet_id + 1; 617 618 switch (dec->packet_type) { 619 case TTUSB_DEC_PACKET_PVA: 620 if (dec->pva_stream_count) 621 ttusb_dec_process_pva(dec, dec->packet, 622 dec->packet_payload_length); 623 break; 624 625 case TTUSB_DEC_PACKET_SECTION: 626 if (dec->filter_stream_count) 627 ttusb_dec_process_filter(dec, dec->packet, 628 dec->packet_payload_length); 629 break; 630 631 case TTUSB_DEC_PACKET_EMPTY: 632 break; 633 } 634} 635 636static void swap_bytes(u8 *b, int length) 637{ 638 length -= length % 2; 639 for (; length; b += 2, length -= 2) 640 swap(*b, *(b + 1)); 641} 642 643static void ttusb_dec_process_urb_frame(struct ttusb_dec *dec, u8 *b, 644 int length) 645{ 646 swap_bytes(b, length); 647 648 while (length) { 649 switch (dec->packet_state) { 650 651 case 0: 652 case 1: 653 case 2: 654 if (*b++ == 0xaa) 655 dec->packet_state++; 656 else 657 dec->packet_state = 0; 658 659 length--; 660 break; 661 662 case 3: 663 if (*b == 0x00) { 664 dec->packet_state++; 665 dec->packet_length = 0; 666 } else if (*b != 0xaa) { 667 dec->packet_state = 0; 668 } 669 670 b++; 671 length--; 672 break; 673 674 case 4: 675 dec->packet[dec->packet_length++] = *b++; 676 677 if (dec->packet_length == 2) { 678 if (dec->packet[0] == 'A' && 679 dec->packet[1] == 'V') { 680 dec->packet_type = 681 TTUSB_DEC_PACKET_PVA; 682 dec->packet_state++; 683 } else if (dec->packet[0] == 'S') { 684 dec->packet_type = 685 TTUSB_DEC_PACKET_SECTION; 686 dec->packet_state++; 687 } else if (dec->packet[0] == 0x00) { 688 dec->packet_type = 689 TTUSB_DEC_PACKET_EMPTY; 690 dec->packet_payload_length = 2; 691 dec->packet_state = 7; 692 } else { 693 printk("%s: unknown packet type: %02x%02x\n", 694 __func__, 695 dec->packet[0], dec->packet[1]); 696 dec->packet_state = 0; 697 } 698 } 699 700 length--; 701 break; 702 703 case 5: 704 dec->packet[dec->packet_length++] = *b++; 705 706 if (dec->packet_type == TTUSB_DEC_PACKET_PVA && 707 dec->packet_length == 8) { 708 dec->packet_state++; 709 dec->packet_payload_length = 8 + 710 (dec->packet[6] << 8) + 711 dec->packet[7]; 712 } else if (dec->packet_type == 713 TTUSB_DEC_PACKET_SECTION && 714 dec->packet_length == 5) { 715 dec->packet_state++; 716 dec->packet_payload_length = 5 + 717 ((dec->packet[3] & 0x0f) << 8) + 718 dec->packet[4]; 719 } 720 721 length--; 722 break; 723 724 case 6: { 725 int remainder = dec->packet_payload_length - 726 dec->packet_length; 727 728 if (length >= remainder) { 729 memcpy(dec->packet + dec->packet_length, 730 b, remainder); 731 dec->packet_length += remainder; 732 b += remainder; 733 length -= remainder; 734 dec->packet_state++; 735 } else { 736 memcpy(&dec->packet[dec->packet_length], 737 b, length); 738 dec->packet_length += length; 739 length = 0; 740 } 741 742 break; 743 } 744 745 case 7: { 746 int tail = 4; 747 748 dec->packet[dec->packet_length++] = *b++; 749 750 if (dec->packet_type == TTUSB_DEC_PACKET_SECTION && 751 dec->packet_payload_length % 2) 752 tail++; 753 754 if (dec->packet_length == 755 dec->packet_payload_length + tail) { 756 ttusb_dec_process_packet(dec); 757 dec->packet_state = 0; 758 } 759 760 length--; 761 break; 762 } 763 764 default: 765 printk("%s: illegal packet state encountered.\n", 766 __func__); 767 dec->packet_state = 0; 768 } 769 } 770} 771 772static void ttusb_dec_process_urb_frame_list(struct tasklet_struct *t) 773{ 774 struct ttusb_dec *dec = from_tasklet(dec, t, urb_tasklet); 775 struct list_head *item; 776 struct urb_frame *frame; 777 unsigned long flags; 778 779 while (1) { 780 spin_lock_irqsave(&dec->urb_frame_list_lock, flags); 781 if ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) { 782 frame = list_entry(item, struct urb_frame, 783 urb_frame_list); 784 list_del(&frame->urb_frame_list); 785 } else { 786 spin_unlock_irqrestore(&dec->urb_frame_list_lock, 787 flags); 788 return; 789 } 790 spin_unlock_irqrestore(&dec->urb_frame_list_lock, flags); 791 792 ttusb_dec_process_urb_frame(dec, frame->data, frame->length); 793 kfree(frame); 794 } 795} 796 797static void ttusb_dec_process_urb(struct urb *urb) 798{ 799 struct ttusb_dec *dec = urb->context; 800 801 if (!urb->status) { 802 int i; 803 804 for (i = 0; i < FRAMES_PER_ISO_BUF; i++) { 805 struct usb_iso_packet_descriptor *d; 806 u8 *b; 807 int length; 808 struct urb_frame *frame; 809 810 d = &urb->iso_frame_desc[i]; 811 b = urb->transfer_buffer + d->offset; 812 length = d->actual_length; 813 814 if ((frame = kmalloc(sizeof(struct urb_frame), 815 GFP_ATOMIC))) { 816 unsigned long flags; 817 818 memcpy(frame->data, b, length); 819 frame->length = length; 820 821 spin_lock_irqsave(&dec->urb_frame_list_lock, 822 flags); 823 list_add_tail(&frame->urb_frame_list, 824 &dec->urb_frame_list); 825 spin_unlock_irqrestore(&dec->urb_frame_list_lock, 826 flags); 827 828 tasklet_schedule(&dec->urb_tasklet); 829 } 830 } 831 } else { 832 /* -ENOENT is expected when unlinking urbs */ 833 if (urb->status != -ENOENT) 834 dprintk("%s: urb error: %d\n", __func__, 835 urb->status); 836 } 837 838 if (dec->iso_stream_count) 839 usb_submit_urb(urb, GFP_ATOMIC); 840} 841 842static void ttusb_dec_setup_urbs(struct ttusb_dec *dec) 843{ 844 int i, j, buffer_offset = 0; 845 846 dprintk("%s\n", __func__); 847 848 for (i = 0; i < ISO_BUF_COUNT; i++) { 849 int frame_offset = 0; 850 struct urb *urb = dec->iso_urb[i]; 851 852 urb->dev = dec->udev; 853 urb->context = dec; 854 urb->complete = ttusb_dec_process_urb; 855 urb->pipe = dec->in_pipe; 856 urb->transfer_flags = URB_ISO_ASAP; 857 urb->interval = 1; 858 urb->number_of_packets = FRAMES_PER_ISO_BUF; 859 urb->transfer_buffer_length = ISO_FRAME_SIZE * 860 FRAMES_PER_ISO_BUF; 861 urb->transfer_buffer = dec->iso_buffer + buffer_offset; 862 buffer_offset += ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF; 863 864 for (j = 0; j < FRAMES_PER_ISO_BUF; j++) { 865 urb->iso_frame_desc[j].offset = frame_offset; 866 urb->iso_frame_desc[j].length = ISO_FRAME_SIZE; 867 frame_offset += ISO_FRAME_SIZE; 868 } 869 } 870} 871 872static void ttusb_dec_stop_iso_xfer(struct ttusb_dec *dec) 873{ 874 int i; 875 876 dprintk("%s\n", __func__); 877 878 if (mutex_lock_interruptible(&dec->iso_mutex)) 879 return; 880 881 dec->iso_stream_count--; 882 883 if (!dec->iso_stream_count) { 884 for (i = 0; i < ISO_BUF_COUNT; i++) 885 usb_kill_urb(dec->iso_urb[i]); 886 } 887 888 mutex_unlock(&dec->iso_mutex); 889} 890 891/* Setting the interface of the DEC tends to take down the USB communications 892 * for a short period, so it's important not to call this function just before 893 * trying to talk to it. 894 */ 895static int ttusb_dec_set_interface(struct ttusb_dec *dec, 896 enum ttusb_dec_interface interface) 897{ 898 int result = 0; 899 u8 b[] = { 0x05 }; 900 901 if (interface != dec->interface) { 902 switch (interface) { 903 case TTUSB_DEC_INTERFACE_INITIAL: 904 result = usb_set_interface(dec->udev, 0, 0); 905 break; 906 case TTUSB_DEC_INTERFACE_IN: 907 result = ttusb_dec_send_command(dec, 0x80, sizeof(b), 908 b, NULL, NULL); 909 if (result) 910 return result; 911 result = usb_set_interface(dec->udev, 0, 8); 912 break; 913 case TTUSB_DEC_INTERFACE_OUT: 914 result = usb_set_interface(dec->udev, 0, 1); 915 break; 916 } 917 918 if (result) 919 return result; 920 921 dec->interface = interface; 922 } 923 924 return 0; 925} 926 927static int ttusb_dec_start_iso_xfer(struct ttusb_dec *dec) 928{ 929 int i, result; 930 931 dprintk("%s\n", __func__); 932 933 if (mutex_lock_interruptible(&dec->iso_mutex)) 934 return -EAGAIN; 935 936 if (!dec->iso_stream_count) { 937 ttusb_dec_setup_urbs(dec); 938 939 dec->packet_state = 0; 940 dec->v_pes_postbytes = 0; 941 dec->next_packet_id = 0; 942 943 for (i = 0; i < ISO_BUF_COUNT; i++) { 944 if ((result = usb_submit_urb(dec->iso_urb[i], 945 GFP_ATOMIC))) { 946 printk("%s: failed urb submission %d: error %d\n", 947 __func__, i, result); 948 949 while (i) { 950 usb_kill_urb(dec->iso_urb[i - 1]); 951 i--; 952 } 953 954 mutex_unlock(&dec->iso_mutex); 955 return result; 956 } 957 } 958 } 959 960 dec->iso_stream_count++; 961 962 mutex_unlock(&dec->iso_mutex); 963 964 return 0; 965} 966 967static int ttusb_dec_start_ts_feed(struct dvb_demux_feed *dvbdmxfeed) 968{ 969 struct dvb_demux *dvbdmx = dvbdmxfeed->demux; 970 struct ttusb_dec *dec = dvbdmx->priv; 971 u8 b0[] = { 0x05 }; 972 int result = 0; 973 974 dprintk("%s\n", __func__); 975 976 dprintk(" ts_type:"); 977 978 if (dvbdmxfeed->ts_type & TS_DECODER) 979 dprintk(" TS_DECODER"); 980 981 if (dvbdmxfeed->ts_type & TS_PACKET) 982 dprintk(" TS_PACKET"); 983 984 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY) 985 dprintk(" TS_PAYLOAD_ONLY"); 986 987 dprintk("\n"); 988 989 switch (dvbdmxfeed->pes_type) { 990 991 case DMX_PES_VIDEO: 992 dprintk(" pes_type: DMX_PES_VIDEO\n"); 993 dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid; 994 dec->pid[DMX_PES_VIDEO] = dvbdmxfeed->pid; 995 dec->video_filter = dvbdmxfeed->filter; 996 ttusb_dec_set_pids(dec); 997 break; 998 999 case DMX_PES_AUDIO: 1000 dprintk(" pes_type: DMX_PES_AUDIO\n"); 1001 dec->pid[DMX_PES_AUDIO] = dvbdmxfeed->pid; 1002 dec->audio_filter = dvbdmxfeed->filter; 1003 ttusb_dec_set_pids(dec); 1004 break; 1005 1006 case DMX_PES_TELETEXT: 1007 dec->pid[DMX_PES_TELETEXT] = dvbdmxfeed->pid; 1008 dprintk(" pes_type: DMX_PES_TELETEXT(not supported)\n"); 1009 return -ENOSYS; 1010 1011 case DMX_PES_PCR: 1012 dprintk(" pes_type: DMX_PES_PCR\n"); 1013 dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid; 1014 ttusb_dec_set_pids(dec); 1015 break; 1016 1017 case DMX_PES_OTHER: 1018 dprintk(" pes_type: DMX_PES_OTHER(not supported)\n"); 1019 return -ENOSYS; 1020 1021 default: 1022 dprintk(" pes_type: unknown (%d)\n", dvbdmxfeed->pes_type); 1023 return -EINVAL; 1024 1025 } 1026 1027 result = ttusb_dec_send_command(dec, 0x80, sizeof(b0), b0, NULL, NULL); 1028 if (result) 1029 return result; 1030 1031 dec->pva_stream_count++; 1032 return ttusb_dec_start_iso_xfer(dec); 1033} 1034 1035static int ttusb_dec_start_sec_feed(struct dvb_demux_feed *dvbdmxfeed) 1036{ 1037 struct ttusb_dec *dec = dvbdmxfeed->demux->priv; 1038 u8 b0[] = { 0x00, 0x00, 0x00, 0x01, 1039 0x00, 0x00, 0x00, 0x00, 1040 0x00, 0x00, 0x00, 0x00, 1041 0x00, 0x00, 0x00, 0x00, 1042 0x00, 0xff, 0x00, 0x00, 1043 0x00, 0x00, 0x00, 0x00, 1044 0x00, 0x00, 0x00, 0x00, 1045 0x00 }; 1046 __be16 pid; 1047 u8 c[COMMAND_PACKET_SIZE]; 1048 int c_length; 1049 int result; 1050 struct filter_info *finfo; 1051 unsigned long flags; 1052 u8 x = 1; 1053 1054 dprintk("%s\n", __func__); 1055 1056 pid = htons(dvbdmxfeed->pid); 1057 memcpy(&b0[0], &pid, 2); 1058 memcpy(&b0[4], &x, 1); 1059 memcpy(&b0[5], &dvbdmxfeed->filter->filter.filter_value[0], 1); 1060 1061 result = ttusb_dec_send_command(dec, 0x60, sizeof(b0), b0, 1062 &c_length, c); 1063 1064 if (!result) { 1065 if (c_length == 2) { 1066 if (!(finfo = kmalloc(sizeof(struct filter_info), 1067 GFP_ATOMIC))) 1068 return -ENOMEM; 1069 1070 finfo->stream_id = c[1]; 1071 finfo->filter = dvbdmxfeed->filter; 1072 1073 spin_lock_irqsave(&dec->filter_info_list_lock, flags); 1074 list_add_tail(&finfo->filter_info_list, 1075 &dec->filter_info_list); 1076 spin_unlock_irqrestore(&dec->filter_info_list_lock, 1077 flags); 1078 1079 dvbdmxfeed->priv = finfo; 1080 1081 dec->filter_stream_count++; 1082 return ttusb_dec_start_iso_xfer(dec); 1083 } 1084 1085 return -EAGAIN; 1086 } else 1087 return result; 1088} 1089 1090static int ttusb_dec_start_feed(struct dvb_demux_feed *dvbdmxfeed) 1091{ 1092 struct dvb_demux *dvbdmx = dvbdmxfeed->demux; 1093 1094 dprintk("%s\n", __func__); 1095 1096 if (!dvbdmx->dmx.frontend) 1097 return -EINVAL; 1098 1099 dprintk(" pid: 0x%04X\n", dvbdmxfeed->pid); 1100 1101 switch (dvbdmxfeed->type) { 1102 1103 case DMX_TYPE_TS: 1104 return ttusb_dec_start_ts_feed(dvbdmxfeed); 1105 break; 1106 1107 case DMX_TYPE_SEC: 1108 return ttusb_dec_start_sec_feed(dvbdmxfeed); 1109 break; 1110 1111 default: 1112 dprintk(" type: unknown (%d)\n", dvbdmxfeed->type); 1113 return -EINVAL; 1114 1115 } 1116} 1117 1118static int ttusb_dec_stop_ts_feed(struct dvb_demux_feed *dvbdmxfeed) 1119{ 1120 struct ttusb_dec *dec = dvbdmxfeed->demux->priv; 1121 u8 b0[] = { 0x00 }; 1122 1123 ttusb_dec_send_command(dec, 0x81, sizeof(b0), b0, NULL, NULL); 1124 1125 dec->pva_stream_count--; 1126 1127 ttusb_dec_stop_iso_xfer(dec); 1128 1129 return 0; 1130} 1131 1132static int ttusb_dec_stop_sec_feed(struct dvb_demux_feed *dvbdmxfeed) 1133{ 1134 struct ttusb_dec *dec = dvbdmxfeed->demux->priv; 1135 u8 b0[] = { 0x00, 0x00 }; 1136 struct filter_info *finfo = (struct filter_info *)dvbdmxfeed->priv; 1137 unsigned long flags; 1138 1139 b0[1] = finfo->stream_id; 1140 spin_lock_irqsave(&dec->filter_info_list_lock, flags); 1141 list_del(&finfo->filter_info_list); 1142 spin_unlock_irqrestore(&dec->filter_info_list_lock, flags); 1143 kfree(finfo); 1144 ttusb_dec_send_command(dec, 0x62, sizeof(b0), b0, NULL, NULL); 1145 1146 dec->filter_stream_count--; 1147 1148 ttusb_dec_stop_iso_xfer(dec); 1149 1150 return 0; 1151} 1152 1153static int ttusb_dec_stop_feed(struct dvb_demux_feed *dvbdmxfeed) 1154{ 1155 dprintk("%s\n", __func__); 1156 1157 switch (dvbdmxfeed->type) { 1158 case DMX_TYPE_TS: 1159 return ttusb_dec_stop_ts_feed(dvbdmxfeed); 1160 break; 1161 1162 case DMX_TYPE_SEC: 1163 return ttusb_dec_stop_sec_feed(dvbdmxfeed); 1164 break; 1165 } 1166 1167 return 0; 1168} 1169 1170static void ttusb_dec_free_iso_urbs(struct ttusb_dec *dec) 1171{ 1172 int i; 1173 1174 dprintk("%s\n", __func__); 1175 1176 for (i = 0; i < ISO_BUF_COUNT; i++) 1177 usb_free_urb(dec->iso_urb[i]); 1178 kfree(dec->iso_buffer); 1179} 1180 1181static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec) 1182{ 1183 int i; 1184 1185 dprintk("%s\n", __func__); 1186 1187 dec->iso_buffer = kcalloc(FRAMES_PER_ISO_BUF * ISO_BUF_COUNT, 1188 ISO_FRAME_SIZE, GFP_KERNEL); 1189 if (!dec->iso_buffer) 1190 return -ENOMEM; 1191 1192 for (i = 0; i < ISO_BUF_COUNT; i++) { 1193 struct urb *urb; 1194 1195 if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) { 1196 ttusb_dec_free_iso_urbs(dec); 1197 return -ENOMEM; 1198 } 1199 1200 dec->iso_urb[i] = urb; 1201 } 1202 1203 ttusb_dec_setup_urbs(dec); 1204 1205 return 0; 1206} 1207 1208static void ttusb_dec_init_tasklet(struct ttusb_dec *dec) 1209{ 1210 spin_lock_init(&dec->urb_frame_list_lock); 1211 INIT_LIST_HEAD(&dec->urb_frame_list); 1212 tasklet_setup(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list); 1213} 1214 1215static int ttusb_init_rc( struct ttusb_dec *dec) 1216{ 1217 struct input_dev *input_dev; 1218 u8 b[] = { 0x00, 0x01 }; 1219 int i; 1220 int err; 1221 1222 usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys)); 1223 strlcat(dec->rc_phys, "/input0", sizeof(dec->rc_phys)); 1224 1225 input_dev = input_allocate_device(); 1226 if (!input_dev) 1227 return -ENOMEM; 1228 1229 input_dev->name = "ttusb_dec remote control"; 1230 input_dev->phys = dec->rc_phys; 1231 input_dev->evbit[0] = BIT_MASK(EV_KEY); 1232 input_dev->keycodesize = sizeof(u16); 1233 input_dev->keycodemax = 0x1a; 1234 input_dev->keycode = rc_keys; 1235 1236 for (i = 0; i < ARRAY_SIZE(rc_keys); i++) 1237 set_bit(rc_keys[i], input_dev->keybit); 1238 1239 err = input_register_device(input_dev); 1240 if (err) { 1241 input_free_device(input_dev); 1242 return err; 1243 } 1244 1245 dec->rc_input_dev = input_dev; 1246 if (usb_submit_urb(dec->irq_urb, GFP_KERNEL)) 1247 printk("%s: usb_submit_urb failed\n",__func__); 1248 /* enable irq pipe */ 1249 ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL); 1250 1251 return 0; 1252} 1253 1254static void ttusb_dec_init_v_pes(struct ttusb_dec *dec) 1255{ 1256 dprintk("%s\n", __func__); 1257 1258 dec->v_pes[0] = 0x00; 1259 dec->v_pes[1] = 0x00; 1260 dec->v_pes[2] = 0x01; 1261 dec->v_pes[3] = 0xe0; 1262} 1263 1264static int ttusb_dec_init_usb(struct ttusb_dec *dec) 1265{ 1266 int result; 1267 1268 dprintk("%s\n", __func__); 1269 1270 mutex_init(&dec->usb_mutex); 1271 mutex_init(&dec->iso_mutex); 1272 1273 dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE); 1274 dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE); 1275 dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE); 1276 dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE); 1277 dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE); 1278 1279 if(enable_rc) { 1280 dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 1281 if(!dec->irq_urb) { 1282 return -ENOMEM; 1283 } 1284 dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE, 1285 GFP_KERNEL, &dec->irq_dma_handle); 1286 if(!dec->irq_buffer) { 1287 usb_free_urb(dec->irq_urb); 1288 return -ENOMEM; 1289 } 1290 usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe, 1291 dec->irq_buffer, IRQ_PACKET_SIZE, 1292 ttusb_dec_handle_irq, dec, 1); 1293 dec->irq_urb->transfer_dma = dec->irq_dma_handle; 1294 dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1295 } 1296 1297 result = ttusb_dec_alloc_iso_urbs(dec); 1298 if (result) { 1299 usb_free_urb(dec->irq_urb); 1300 usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, 1301 dec->irq_buffer, dec->irq_dma_handle); 1302 } 1303 return result; 1304} 1305 1306static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) 1307{ 1308 int i, j, actual_len, result, size, trans_count; 1309 u8 b0[] = { 0x00, 0x00, 0x00, 0x00, 1310 0x00, 0x00, 0x00, 0x00, 1311 0x61, 0x00 }; 1312 u8 b1[] = { 0x61 }; 1313 u8 *b; 1314 char idstring[21]; 1315 const u8 *firmware = NULL; 1316 size_t firmware_size = 0; 1317 u16 firmware_csum = 0; 1318 __be16 firmware_csum_ns; 1319 __be32 firmware_size_nl; 1320 u32 crc32_csum, crc32_check; 1321 __be32 tmp; 1322 const struct firmware *fw_entry = NULL; 1323 1324 dprintk("%s\n", __func__); 1325 1326 result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev); 1327 if (result) { 1328 printk(KERN_ERR "%s: Firmware (%s) unavailable.\n", 1329 __func__, dec->firmware_name); 1330 return result; 1331 } 1332 1333 firmware = fw_entry->data; 1334 firmware_size = fw_entry->size; 1335 1336 if (firmware_size < 60) { 1337 printk("%s: firmware size too small for DSP code (%zu < 60).\n", 1338 __func__, firmware_size); 1339 release_firmware(fw_entry); 1340 return -ENOENT; 1341 } 1342 1343 /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored 1344 at offset 56 of file, so use it to check if the firmware file is 1345 valid. */ 1346 crc32_csum = crc32(~0L, firmware, 56) ^ ~0L; 1347 memcpy(&tmp, &firmware[56], 4); 1348 crc32_check = ntohl(tmp); 1349 if (crc32_csum != crc32_check) { 1350 printk("%s: crc32 check of DSP code failed (calculated 0x%08x != 0x%08x in file), file invalid.\n", 1351 __func__, crc32_csum, crc32_check); 1352 release_firmware(fw_entry); 1353 return -ENOENT; 1354 } 1355 memcpy(idstring, &firmware[36], 20); 1356 idstring[20] = '\0'; 1357 printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring); 1358 1359 firmware_size_nl = htonl(firmware_size); 1360 memcpy(b0, &firmware_size_nl, 4); 1361 firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0; 1362 firmware_csum_ns = htons(firmware_csum); 1363 memcpy(&b0[6], &firmware_csum_ns, 2); 1364 1365 result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL); 1366 1367 if (result) { 1368 release_firmware(fw_entry); 1369 return result; 1370 } 1371 1372 trans_count = 0; 1373 j = 0; 1374 1375 b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL); 1376 if (b == NULL) { 1377 release_firmware(fw_entry); 1378 return -ENOMEM; 1379 } 1380 1381 for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) { 1382 size = firmware_size - i; 1383 if (size > COMMAND_PACKET_SIZE) 1384 size = COMMAND_PACKET_SIZE; 1385 1386 b[j + 0] = 0xaa; 1387 b[j + 1] = trans_count++; 1388 b[j + 2] = 0xf0; 1389 b[j + 3] = size; 1390 memcpy(&b[j + 4], &firmware[i], size); 1391 1392 j += COMMAND_PACKET_SIZE + 4; 1393 1394 if (j >= ARM_PACKET_SIZE) { 1395 result = usb_bulk_msg(dec->udev, dec->command_pipe, b, 1396 ARM_PACKET_SIZE, &actual_len, 1397 100); 1398 j = 0; 1399 } else if (size < COMMAND_PACKET_SIZE) { 1400 result = usb_bulk_msg(dec->udev, dec->command_pipe, b, 1401 j - COMMAND_PACKET_SIZE + size, 1402 &actual_len, 100); 1403 } 1404 } 1405 1406 result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL); 1407 1408 release_firmware(fw_entry); 1409 kfree(b); 1410 1411 return result; 1412} 1413 1414static int ttusb_dec_init_stb(struct ttusb_dec *dec) 1415{ 1416 int result; 1417 unsigned int mode = 0, model = 0, version = 0; 1418 1419 dprintk("%s\n", __func__); 1420 1421 result = ttusb_dec_get_stb_state(dec, &mode, &model, &version); 1422 if (result) 1423 return result; 1424 1425 if (!mode) { 1426 if (version == 0xABCDEFAB) 1427 printk(KERN_INFO "ttusb_dec: no version info in Firmware\n"); 1428 else 1429 printk(KERN_INFO "ttusb_dec: Firmware %x.%02x%c%c\n", 1430 version >> 24, (version >> 16) & 0xff, 1431 (version >> 8) & 0xff, version & 0xff); 1432 1433 result = ttusb_dec_boot_dsp(dec); 1434 if (result) 1435 return result; 1436 } else { 1437 /* We can't trust the USB IDs that some firmwares 1438 give the box */ 1439 switch (model) { 1440 case 0x00070001: 1441 case 0x00070008: 1442 case 0x0007000c: 1443 ttusb_dec_set_model(dec, TTUSB_DEC3000S); 1444 break; 1445 case 0x00070009: 1446 case 0x00070013: 1447 ttusb_dec_set_model(dec, TTUSB_DEC2000T); 1448 break; 1449 case 0x00070011: 1450 ttusb_dec_set_model(dec, TTUSB_DEC2540T); 1451 break; 1452 default: 1453 printk(KERN_ERR "%s: unknown model returned by firmware (%08x) - please report\n", 1454 __func__, model); 1455 return -ENOENT; 1456 } 1457 if (version >= 0x01770000) 1458 dec->can_playback = 1; 1459 } 1460 return 0; 1461} 1462 1463static int ttusb_dec_init_dvb(struct ttusb_dec *dec) 1464{ 1465 int result; 1466 1467 dprintk("%s\n", __func__); 1468 1469 if ((result = dvb_register_adapter(&dec->adapter, 1470 dec->model_name, THIS_MODULE, 1471 &dec->udev->dev, 1472 adapter_nr)) < 0) { 1473 printk("%s: dvb_register_adapter failed: error %d\n", 1474 __func__, result); 1475 1476 return result; 1477 } 1478 1479 dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; 1480 1481 dec->demux.priv = (void *)dec; 1482 dec->demux.filternum = 31; 1483 dec->demux.feednum = 31; 1484 dec->demux.start_feed = ttusb_dec_start_feed; 1485 dec->demux.stop_feed = ttusb_dec_stop_feed; 1486 dec->demux.write_to_decoder = NULL; 1487 1488 if ((result = dvb_dmx_init(&dec->demux)) < 0) { 1489 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1490 result); 1491 1492 dvb_unregister_adapter(&dec->adapter); 1493 1494 return result; 1495 } 1496 1497 dec->dmxdev.filternum = 32; 1498 dec->dmxdev.demux = &dec->demux.dmx; 1499 dec->dmxdev.capabilities = 0; 1500 1501 if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) { 1502 printk("%s: dvb_dmxdev_init failed: error %d\n", 1503 __func__, result); 1504 1505 dvb_dmx_release(&dec->demux); 1506 dvb_unregister_adapter(&dec->adapter); 1507 1508 return result; 1509 } 1510 1511 dec->frontend.source = DMX_FRONTEND_0; 1512 1513 if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx, 1514 &dec->frontend)) < 0) { 1515 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1516 result); 1517 1518 dvb_dmxdev_release(&dec->dmxdev); 1519 dvb_dmx_release(&dec->demux); 1520 dvb_unregister_adapter(&dec->adapter); 1521 1522 return result; 1523 } 1524 1525 if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx, 1526 &dec->frontend)) < 0) { 1527 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1528 result); 1529 1530 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); 1531 dvb_dmxdev_release(&dec->dmxdev); 1532 dvb_dmx_release(&dec->demux); 1533 dvb_unregister_adapter(&dec->adapter); 1534 1535 return result; 1536 } 1537 1538 dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx); 1539 1540 return 0; 1541} 1542 1543static void ttusb_dec_exit_dvb(struct ttusb_dec *dec) 1544{ 1545 dprintk("%s\n", __func__); 1546 1547 dvb_net_release(&dec->dvb_net); 1548 dec->demux.dmx.close(&dec->demux.dmx); 1549 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); 1550 dvb_dmxdev_release(&dec->dmxdev); 1551 dvb_dmx_release(&dec->demux); 1552 if (dec->fe) { 1553 dvb_unregister_frontend(dec->fe); 1554 dvb_frontend_detach(dec->fe); 1555 } 1556 dvb_unregister_adapter(&dec->adapter); 1557} 1558 1559static void ttusb_dec_exit_rc(struct ttusb_dec *dec) 1560{ 1561 dprintk("%s\n", __func__); 1562 1563 if (dec->rc_input_dev) { 1564 input_unregister_device(dec->rc_input_dev); 1565 dec->rc_input_dev = NULL; 1566 } 1567} 1568 1569 1570static void ttusb_dec_exit_usb(struct ttusb_dec *dec) 1571{ 1572 int i; 1573 1574 dprintk("%s\n", __func__); 1575 1576 if (enable_rc) { 1577 /* we have to check whether the irq URB is already submitted. 1578 * As the irq is submitted after the interface is changed, 1579 * this is the best method i figured out. 1580 * Any others?*/ 1581 if (dec->interface == TTUSB_DEC_INTERFACE_IN) 1582 usb_kill_urb(dec->irq_urb); 1583 1584 usb_free_urb(dec->irq_urb); 1585 1586 usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, 1587 dec->irq_buffer, dec->irq_dma_handle); 1588 } 1589 1590 dec->iso_stream_count = 0; 1591 1592 for (i = 0; i < ISO_BUF_COUNT; i++) 1593 usb_kill_urb(dec->iso_urb[i]); 1594 1595 ttusb_dec_free_iso_urbs(dec); 1596} 1597 1598static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec) 1599{ 1600 struct list_head *item; 1601 struct urb_frame *frame; 1602 1603 tasklet_kill(&dec->urb_tasklet); 1604 1605 while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) { 1606 frame = list_entry(item, struct urb_frame, urb_frame_list); 1607 list_del(&frame->urb_frame_list); 1608 kfree(frame); 1609 } 1610} 1611 1612static void ttusb_dec_init_filters(struct ttusb_dec *dec) 1613{ 1614 INIT_LIST_HEAD(&dec->filter_info_list); 1615 spin_lock_init(&dec->filter_info_list_lock); 1616} 1617 1618static void ttusb_dec_exit_filters(struct ttusb_dec *dec) 1619{ 1620 struct list_head *item; 1621 struct filter_info *finfo; 1622 1623 while ((item = dec->filter_info_list.next) != &dec->filter_info_list) { 1624 finfo = list_entry(item, struct filter_info, filter_info_list); 1625 list_del(&finfo->filter_info_list); 1626 kfree(finfo); 1627 } 1628} 1629 1630static int fe_send_command(struct dvb_frontend* fe, const u8 command, 1631 int param_length, const u8 params[], 1632 int *result_length, u8 cmd_result[]) 1633{ 1634 struct ttusb_dec* dec = fe->dvb->priv; 1635 return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result); 1636} 1637 1638static const struct ttusbdecfe_config fe_config = { 1639 .send_command = fe_send_command 1640}; 1641 1642static int ttusb_dec_probe(struct usb_interface *intf, 1643 const struct usb_device_id *id) 1644{ 1645 struct usb_device *udev; 1646 struct ttusb_dec *dec; 1647 int result; 1648 1649 dprintk("%s\n", __func__); 1650 1651 udev = interface_to_usbdev(intf); 1652 1653 if (!(dec = kzalloc(sizeof(struct ttusb_dec), GFP_KERNEL))) { 1654 printk("%s: couldn't allocate memory.\n", __func__); 1655 return -ENOMEM; 1656 } 1657 1658 usb_set_intfdata(intf, (void *)dec); 1659 1660 switch (id->idProduct) { 1661 case 0x1006: 1662 ttusb_dec_set_model(dec, TTUSB_DEC3000S); 1663 break; 1664 1665 case 0x1008: 1666 ttusb_dec_set_model(dec, TTUSB_DEC2000T); 1667 break; 1668 1669 case 0x1009: 1670 ttusb_dec_set_model(dec, TTUSB_DEC2540T); 1671 break; 1672 } 1673 1674 dec->udev = udev; 1675 1676 result = ttusb_dec_init_usb(dec); 1677 if (result) 1678 goto err_usb; 1679 result = ttusb_dec_init_stb(dec); 1680 if (result) 1681 goto err_stb; 1682 result = ttusb_dec_init_dvb(dec); 1683 if (result) 1684 goto err_stb; 1685 1686 dec->adapter.priv = dec; 1687 switch (id->idProduct) { 1688 case 0x1006: 1689 dec->fe = ttusbdecfe_dvbs_attach(&fe_config); 1690 break; 1691 1692 case 0x1008: 1693 case 0x1009: 1694 dec->fe = ttusbdecfe_dvbt_attach(&fe_config); 1695 break; 1696 } 1697 1698 if (dec->fe == NULL) { 1699 printk("dvb-ttusb-dec: A frontend driver was not found for device [%04x:%04x]\n", 1700 le16_to_cpu(dec->udev->descriptor.idVendor), 1701 le16_to_cpu(dec->udev->descriptor.idProduct)); 1702 } else { 1703 if (dvb_register_frontend(&dec->adapter, dec->fe)) { 1704 printk("budget-ci: Frontend registration failed!\n"); 1705 if (dec->fe->ops.release) 1706 dec->fe->ops.release(dec->fe); 1707 dec->fe = NULL; 1708 } 1709 } 1710 1711 ttusb_dec_init_v_pes(dec); 1712 ttusb_dec_init_filters(dec); 1713 ttusb_dec_init_tasklet(dec); 1714 1715 dec->active = 1; 1716 1717 ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN); 1718 1719 if (enable_rc) 1720 ttusb_init_rc(dec); 1721 1722 return 0; 1723err_stb: 1724 ttusb_dec_exit_usb(dec); 1725err_usb: 1726 kfree(dec); 1727 return result; 1728} 1729 1730static void ttusb_dec_disconnect(struct usb_interface *intf) 1731{ 1732 struct ttusb_dec *dec = usb_get_intfdata(intf); 1733 1734 usb_set_intfdata(intf, NULL); 1735 1736 dprintk("%s\n", __func__); 1737 1738 if (dec->active) { 1739 ttusb_dec_exit_tasklet(dec); 1740 ttusb_dec_exit_filters(dec); 1741 if(enable_rc) 1742 ttusb_dec_exit_rc(dec); 1743 ttusb_dec_exit_usb(dec); 1744 ttusb_dec_exit_dvb(dec); 1745 } 1746 1747 kfree(dec); 1748} 1749 1750static void ttusb_dec_set_model(struct ttusb_dec *dec, 1751 enum ttusb_dec_model model) 1752{ 1753 dec->model = model; 1754 1755 switch (model) { 1756 case TTUSB_DEC2000T: 1757 dec->model_name = "DEC2000-t"; 1758 dec->firmware_name = "dvb-ttusb-dec-2000t.fw"; 1759 break; 1760 1761 case TTUSB_DEC2540T: 1762 dec->model_name = "DEC2540-t"; 1763 dec->firmware_name = "dvb-ttusb-dec-2540t.fw"; 1764 break; 1765 1766 case TTUSB_DEC3000S: 1767 dec->model_name = "DEC3000-s"; 1768 dec->firmware_name = "dvb-ttusb-dec-3000s.fw"; 1769 break; 1770 } 1771} 1772 1773static const struct usb_device_id ttusb_dec_table[] = { 1774 {USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */ 1775 /*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */ 1776 {USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */ 1777 {USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */ 1778 {} 1779}; 1780 1781static struct usb_driver ttusb_dec_driver = { 1782 .name = "ttusb-dec", 1783 .probe = ttusb_dec_probe, 1784 .disconnect = ttusb_dec_disconnect, 1785 .id_table = ttusb_dec_table, 1786}; 1787 1788module_usb_driver(ttusb_dec_driver); 1789 1790MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>"); 1791MODULE_DESCRIPTION(DRIVER_NAME); 1792MODULE_LICENSE("GPL"); 1793MODULE_DEVICE_TABLE(usb, ttusb_dec_table); 1794