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 received 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 -ENOENT; 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_PES_VIDEO: 955 dprintk(" pes_type: DMX_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_PES_AUDIO: 963 dprintk(" pes_type: DMX_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_PES_TELETEXT: 970 dec->pid[DMX_PES_TELETEXT] = dvbdmxfeed->pid; 971 dprintk(" pes_type: DMX_PES_TELETEXT(not supported)\n"); 972 return -ENOSYS; 973 974 case DMX_PES_PCR: 975 dprintk(" pes_type: DMX_PES_PCR\n"); 976 dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid; 977 ttusb_dec_set_pids(dec); 978 break; 979 980 case DMX_PES_OTHER: 981 dprintk(" pes_type: DMX_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_zalloc_consistent(NULL, 1155 ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT), 1156 &dec->iso_dma_handle); 1157 1158 if (!dec->iso_buffer) { 1159 dprintk("%s: pci_alloc_consistent - not enough memory\n", 1160 __func__); 1161 return -ENOMEM; 1162 } 1163 1164 for (i = 0; i < ISO_BUF_COUNT; i++) { 1165 struct urb *urb; 1166 1167 if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) { 1168 ttusb_dec_free_iso_urbs(dec); 1169 return -ENOMEM; 1170 } 1171 1172 dec->iso_urb[i] = urb; 1173 } 1174 1175 ttusb_dec_setup_urbs(dec); 1176 1177 return 0; 1178 } 1179 1180 static void ttusb_dec_init_tasklet(struct ttusb_dec *dec) 1181 { 1182 spin_lock_init(&dec->urb_frame_list_lock); 1183 INIT_LIST_HEAD(&dec->urb_frame_list); 1184 tasklet_init(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list, 1185 (unsigned long)dec); 1186 } 1187 1188 static int ttusb_init_rc( struct ttusb_dec *dec) 1189 { 1190 struct input_dev *input_dev; 1191 u8 b[] = { 0x00, 0x01 }; 1192 int i; 1193 int err; 1194 1195 usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys)); 1196 strlcat(dec->rc_phys, "/input0", sizeof(dec->rc_phys)); 1197 1198 input_dev = input_allocate_device(); 1199 if (!input_dev) 1200 return -ENOMEM; 1201 1202 input_dev->name = "ttusb_dec remote control"; 1203 input_dev->phys = dec->rc_phys; 1204 input_dev->evbit[0] = BIT_MASK(EV_KEY); 1205 input_dev->keycodesize = sizeof(u16); 1206 input_dev->keycodemax = 0x1a; 1207 input_dev->keycode = rc_keys; 1208 1209 for (i = 0; i < ARRAY_SIZE(rc_keys); i++) 1210 set_bit(rc_keys[i], input_dev->keybit); 1211 1212 err = input_register_device(input_dev); 1213 if (err) { 1214 input_free_device(input_dev); 1215 return err; 1216 } 1217 1218 dec->rc_input_dev = input_dev; 1219 if (usb_submit_urb(dec->irq_urb, GFP_KERNEL)) 1220 printk("%s: usb_submit_urb failed\n",__func__); 1221 /* enable irq pipe */ 1222 ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL); 1223 1224 return 0; 1225 } 1226 1227 static void ttusb_dec_init_v_pes(struct ttusb_dec *dec) 1228 { 1229 dprintk("%s\n", __func__); 1230 1231 dec->v_pes[0] = 0x00; 1232 dec->v_pes[1] = 0x00; 1233 dec->v_pes[2] = 0x01; 1234 dec->v_pes[3] = 0xe0; 1235 } 1236 1237 static int ttusb_dec_init_usb(struct ttusb_dec *dec) 1238 { 1239 int result; 1240 1241 dprintk("%s\n", __func__); 1242 1243 mutex_init(&dec->usb_mutex); 1244 mutex_init(&dec->iso_mutex); 1245 1246 dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE); 1247 dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE); 1248 dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE); 1249 dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE); 1250 dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE); 1251 1252 if(enable_rc) { 1253 dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 1254 if(!dec->irq_urb) { 1255 return -ENOMEM; 1256 } 1257 dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE, 1258 GFP_KERNEL, &dec->irq_dma_handle); 1259 if(!dec->irq_buffer) { 1260 usb_free_urb(dec->irq_urb); 1261 return -ENOMEM; 1262 } 1263 usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe, 1264 dec->irq_buffer, IRQ_PACKET_SIZE, 1265 ttusb_dec_handle_irq, dec, 1); 1266 dec->irq_urb->transfer_dma = dec->irq_dma_handle; 1267 dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 1268 } 1269 1270 result = ttusb_dec_alloc_iso_urbs(dec); 1271 if (result) { 1272 usb_free_urb(dec->irq_urb); 1273 usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, 1274 dec->irq_buffer, dec->irq_dma_handle); 1275 } 1276 return result; 1277 } 1278 1279 static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) 1280 { 1281 int i, j, actual_len, result, size, trans_count; 1282 u8 b0[] = { 0x00, 0x00, 0x00, 0x00, 1283 0x00, 0x00, 0x00, 0x00, 1284 0x61, 0x00 }; 1285 u8 b1[] = { 0x61 }; 1286 u8 *b; 1287 char idstring[21]; 1288 const u8 *firmware = NULL; 1289 size_t firmware_size = 0; 1290 u16 firmware_csum = 0; 1291 __be16 firmware_csum_ns; 1292 __be32 firmware_size_nl; 1293 u32 crc32_csum, crc32_check; 1294 __be32 tmp; 1295 const struct firmware *fw_entry = NULL; 1296 1297 dprintk("%s\n", __func__); 1298 1299 result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev); 1300 if (result) { 1301 printk(KERN_ERR "%s: Firmware (%s) unavailable.\n", 1302 __func__, dec->firmware_name); 1303 return result; 1304 } 1305 1306 firmware = fw_entry->data; 1307 firmware_size = fw_entry->size; 1308 1309 if (firmware_size < 60) { 1310 printk("%s: firmware size too small for DSP code (%zu < 60).\n", 1311 __func__, firmware_size); 1312 release_firmware(fw_entry); 1313 return -ENOENT; 1314 } 1315 1316 /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored 1317 at offset 56 of file, so use it to check if the firmware file is 1318 valid. */ 1319 crc32_csum = crc32(~0L, firmware, 56) ^ ~0L; 1320 memcpy(&tmp, &firmware[56], 4); 1321 crc32_check = ntohl(tmp); 1322 if (crc32_csum != crc32_check) { 1323 printk("%s: crc32 check of DSP code failed (calculated " 1324 "0x%08x != 0x%08x in file), file invalid.\n", 1325 __func__, crc32_csum, crc32_check); 1326 release_firmware(fw_entry); 1327 return -ENOENT; 1328 } 1329 memcpy(idstring, &firmware[36], 20); 1330 idstring[20] = '\0'; 1331 printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring); 1332 1333 firmware_size_nl = htonl(firmware_size); 1334 memcpy(b0, &firmware_size_nl, 4); 1335 firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0; 1336 firmware_csum_ns = htons(firmware_csum); 1337 memcpy(&b0[6], &firmware_csum_ns, 2); 1338 1339 result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL); 1340 1341 if (result) { 1342 release_firmware(fw_entry); 1343 return result; 1344 } 1345 1346 trans_count = 0; 1347 j = 0; 1348 1349 b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL); 1350 if (b == NULL) { 1351 release_firmware(fw_entry); 1352 return -ENOMEM; 1353 } 1354 1355 for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) { 1356 size = firmware_size - i; 1357 if (size > COMMAND_PACKET_SIZE) 1358 size = COMMAND_PACKET_SIZE; 1359 1360 b[j + 0] = 0xaa; 1361 b[j + 1] = trans_count++; 1362 b[j + 2] = 0xf0; 1363 b[j + 3] = size; 1364 memcpy(&b[j + 4], &firmware[i], size); 1365 1366 j += COMMAND_PACKET_SIZE + 4; 1367 1368 if (j >= ARM_PACKET_SIZE) { 1369 result = usb_bulk_msg(dec->udev, dec->command_pipe, b, 1370 ARM_PACKET_SIZE, &actual_len, 1371 100); 1372 j = 0; 1373 } else if (size < COMMAND_PACKET_SIZE) { 1374 result = usb_bulk_msg(dec->udev, dec->command_pipe, b, 1375 j - COMMAND_PACKET_SIZE + size, 1376 &actual_len, 100); 1377 } 1378 } 1379 1380 result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL); 1381 1382 release_firmware(fw_entry); 1383 kfree(b); 1384 1385 return result; 1386 } 1387 1388 static int ttusb_dec_init_stb(struct ttusb_dec *dec) 1389 { 1390 int result; 1391 unsigned int mode = 0, model = 0, version = 0; 1392 1393 dprintk("%s\n", __func__); 1394 1395 result = ttusb_dec_get_stb_state(dec, &mode, &model, &version); 1396 if (result) 1397 return result; 1398 1399 if (!mode) { 1400 if (version == 0xABCDEFAB) 1401 printk(KERN_INFO "ttusb_dec: no version " 1402 "info in Firmware\n"); 1403 else 1404 printk(KERN_INFO "ttusb_dec: Firmware " 1405 "%x.%02x%c%c\n", 1406 version >> 24, (version >> 16) & 0xff, 1407 (version >> 8) & 0xff, version & 0xff); 1408 1409 result = ttusb_dec_boot_dsp(dec); 1410 if (result) 1411 return result; 1412 } else { 1413 /* We can't trust the USB IDs that some firmwares 1414 give the box */ 1415 switch (model) { 1416 case 0x00070001: 1417 case 0x00070008: 1418 case 0x0007000c: 1419 ttusb_dec_set_model(dec, TTUSB_DEC3000S); 1420 break; 1421 case 0x00070009: 1422 case 0x00070013: 1423 ttusb_dec_set_model(dec, TTUSB_DEC2000T); 1424 break; 1425 case 0x00070011: 1426 ttusb_dec_set_model(dec, TTUSB_DEC2540T); 1427 break; 1428 default: 1429 printk(KERN_ERR "%s: unknown model returned " 1430 "by firmware (%08x) - please report\n", 1431 __func__, model); 1432 return -ENOENT; 1433 } 1434 if (version >= 0x01770000) 1435 dec->can_playback = 1; 1436 } 1437 return 0; 1438 } 1439 1440 static int ttusb_dec_init_dvb(struct ttusb_dec *dec) 1441 { 1442 int result; 1443 1444 dprintk("%s\n", __func__); 1445 1446 if ((result = dvb_register_adapter(&dec->adapter, 1447 dec->model_name, THIS_MODULE, 1448 &dec->udev->dev, 1449 adapter_nr)) < 0) { 1450 printk("%s: dvb_register_adapter failed: error %d\n", 1451 __func__, result); 1452 1453 return result; 1454 } 1455 1456 dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; 1457 1458 dec->demux.priv = (void *)dec; 1459 dec->demux.filternum = 31; 1460 dec->demux.feednum = 31; 1461 dec->demux.start_feed = ttusb_dec_start_feed; 1462 dec->demux.stop_feed = ttusb_dec_stop_feed; 1463 dec->demux.write_to_decoder = NULL; 1464 1465 if ((result = dvb_dmx_init(&dec->demux)) < 0) { 1466 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1467 result); 1468 1469 dvb_unregister_adapter(&dec->adapter); 1470 1471 return result; 1472 } 1473 1474 dec->dmxdev.filternum = 32; 1475 dec->dmxdev.demux = &dec->demux.dmx; 1476 dec->dmxdev.capabilities = 0; 1477 1478 if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) { 1479 printk("%s: dvb_dmxdev_init failed: error %d\n", 1480 __func__, result); 1481 1482 dvb_dmx_release(&dec->demux); 1483 dvb_unregister_adapter(&dec->adapter); 1484 1485 return result; 1486 } 1487 1488 dec->frontend.source = DMX_FRONTEND_0; 1489 1490 if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx, 1491 &dec->frontend)) < 0) { 1492 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1493 result); 1494 1495 dvb_dmxdev_release(&dec->dmxdev); 1496 dvb_dmx_release(&dec->demux); 1497 dvb_unregister_adapter(&dec->adapter); 1498 1499 return result; 1500 } 1501 1502 if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx, 1503 &dec->frontend)) < 0) { 1504 printk("%s: dvb_dmx_init failed: error %d\n", __func__, 1505 result); 1506 1507 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); 1508 dvb_dmxdev_release(&dec->dmxdev); 1509 dvb_dmx_release(&dec->demux); 1510 dvb_unregister_adapter(&dec->adapter); 1511 1512 return result; 1513 } 1514 1515 dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx); 1516 1517 return 0; 1518 } 1519 1520 static void ttusb_dec_exit_dvb(struct ttusb_dec *dec) 1521 { 1522 dprintk("%s\n", __func__); 1523 1524 dvb_net_release(&dec->dvb_net); 1525 dec->demux.dmx.close(&dec->demux.dmx); 1526 dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); 1527 dvb_dmxdev_release(&dec->dmxdev); 1528 dvb_dmx_release(&dec->demux); 1529 if (dec->fe) { 1530 dvb_unregister_frontend(dec->fe); 1531 if (dec->fe->ops.release) 1532 dec->fe->ops.release(dec->fe); 1533 } 1534 dvb_unregister_adapter(&dec->adapter); 1535 } 1536 1537 static void ttusb_dec_exit_rc(struct ttusb_dec *dec) 1538 { 1539 dprintk("%s\n", __func__); 1540 1541 if (dec->rc_input_dev) { 1542 input_unregister_device(dec->rc_input_dev); 1543 dec->rc_input_dev = NULL; 1544 } 1545 } 1546 1547 1548 static void ttusb_dec_exit_usb(struct ttusb_dec *dec) 1549 { 1550 int i; 1551 1552 dprintk("%s\n", __func__); 1553 1554 if (enable_rc) { 1555 /* we have to check whether the irq URB is already submitted. 1556 * As the irq is submitted after the interface is changed, 1557 * this is the best method i figured out. 1558 * Any others?*/ 1559 if (dec->interface == TTUSB_DEC_INTERFACE_IN) 1560 usb_kill_urb(dec->irq_urb); 1561 1562 usb_free_urb(dec->irq_urb); 1563 1564 usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, 1565 dec->irq_buffer, dec->irq_dma_handle); 1566 } 1567 1568 dec->iso_stream_count = 0; 1569 1570 for (i = 0; i < ISO_BUF_COUNT; i++) 1571 usb_kill_urb(dec->iso_urb[i]); 1572 1573 ttusb_dec_free_iso_urbs(dec); 1574 } 1575 1576 static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec) 1577 { 1578 struct list_head *item; 1579 struct urb_frame *frame; 1580 1581 tasklet_kill(&dec->urb_tasklet); 1582 1583 while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) { 1584 frame = list_entry(item, struct urb_frame, urb_frame_list); 1585 list_del(&frame->urb_frame_list); 1586 kfree(frame); 1587 } 1588 } 1589 1590 static void ttusb_dec_init_filters(struct ttusb_dec *dec) 1591 { 1592 INIT_LIST_HEAD(&dec->filter_info_list); 1593 spin_lock_init(&dec->filter_info_list_lock); 1594 } 1595 1596 static void ttusb_dec_exit_filters(struct ttusb_dec *dec) 1597 { 1598 struct list_head *item; 1599 struct filter_info *finfo; 1600 1601 while ((item = dec->filter_info_list.next) != &dec->filter_info_list) { 1602 finfo = list_entry(item, struct filter_info, filter_info_list); 1603 list_del(&finfo->filter_info_list); 1604 kfree(finfo); 1605 } 1606 } 1607 1608 static int fe_send_command(struct dvb_frontend* fe, const u8 command, 1609 int param_length, const u8 params[], 1610 int *result_length, u8 cmd_result[]) 1611 { 1612 struct ttusb_dec* dec = fe->dvb->priv; 1613 return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result); 1614 } 1615 1616 static struct ttusbdecfe_config fe_config = { 1617 .send_command = fe_send_command 1618 }; 1619 1620 static int ttusb_dec_probe(struct usb_interface *intf, 1621 const struct usb_device_id *id) 1622 { 1623 struct usb_device *udev; 1624 struct ttusb_dec *dec; 1625 int result; 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 result = ttusb_dec_init_usb(dec); 1655 if (result) 1656 goto err_usb; 1657 result = ttusb_dec_init_stb(dec); 1658 if (result) 1659 goto err_stb; 1660 result = ttusb_dec_init_dvb(dec); 1661 if (result) 1662 goto err_stb; 1663 1664 dec->adapter.priv = dec; 1665 switch (id->idProduct) { 1666 case 0x1006: 1667 dec->fe = ttusbdecfe_dvbs_attach(&fe_config); 1668 break; 1669 1670 case 0x1008: 1671 case 0x1009: 1672 dec->fe = ttusbdecfe_dvbt_attach(&fe_config); 1673 break; 1674 } 1675 1676 if (dec->fe == NULL) { 1677 printk("dvb-ttusb-dec: A frontend driver was not found for device [%04x:%04x]\n", 1678 le16_to_cpu(dec->udev->descriptor.idVendor), 1679 le16_to_cpu(dec->udev->descriptor.idProduct)); 1680 } else { 1681 if (dvb_register_frontend(&dec->adapter, dec->fe)) { 1682 printk("budget-ci: Frontend registration failed!\n"); 1683 if (dec->fe->ops.release) 1684 dec->fe->ops.release(dec->fe); 1685 dec->fe = NULL; 1686 } 1687 } 1688 1689 ttusb_dec_init_v_pes(dec); 1690 ttusb_dec_init_filters(dec); 1691 ttusb_dec_init_tasklet(dec); 1692 1693 dec->active = 1; 1694 1695 ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN); 1696 1697 if (enable_rc) 1698 ttusb_init_rc(dec); 1699 1700 return 0; 1701 err_stb: 1702 ttusb_dec_exit_usb(dec); 1703 err_usb: 1704 kfree(dec); 1705 return result; 1706 } 1707 1708 static void ttusb_dec_disconnect(struct usb_interface *intf) 1709 { 1710 struct ttusb_dec *dec = usb_get_intfdata(intf); 1711 1712 usb_set_intfdata(intf, NULL); 1713 1714 dprintk("%s\n", __func__); 1715 1716 if (dec->active) { 1717 ttusb_dec_exit_tasklet(dec); 1718 ttusb_dec_exit_filters(dec); 1719 if(enable_rc) 1720 ttusb_dec_exit_rc(dec); 1721 ttusb_dec_exit_usb(dec); 1722 ttusb_dec_exit_dvb(dec); 1723 } 1724 1725 kfree(dec); 1726 } 1727 1728 static void ttusb_dec_set_model(struct ttusb_dec *dec, 1729 enum ttusb_dec_model model) 1730 { 1731 dec->model = model; 1732 1733 switch (model) { 1734 case TTUSB_DEC2000T: 1735 dec->model_name = "DEC2000-t"; 1736 dec->firmware_name = "dvb-ttusb-dec-2000t.fw"; 1737 break; 1738 1739 case TTUSB_DEC2540T: 1740 dec->model_name = "DEC2540-t"; 1741 dec->firmware_name = "dvb-ttusb-dec-2540t.fw"; 1742 break; 1743 1744 case TTUSB_DEC3000S: 1745 dec->model_name = "DEC3000-s"; 1746 dec->firmware_name = "dvb-ttusb-dec-3000s.fw"; 1747 break; 1748 } 1749 } 1750 1751 static struct usb_device_id ttusb_dec_table[] = { 1752 {USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */ 1753 /*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */ 1754 {USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */ 1755 {USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */ 1756 {} 1757 }; 1758 1759 static struct usb_driver ttusb_dec_driver = { 1760 .name = "ttusb-dec", 1761 .probe = ttusb_dec_probe, 1762 .disconnect = ttusb_dec_disconnect, 1763 .id_table = ttusb_dec_table, 1764 }; 1765 1766 module_usb_driver(ttusb_dec_driver); 1767 1768 MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>"); 1769 MODULE_DESCRIPTION(DRIVER_NAME); 1770 MODULE_LICENSE("GPL"); 1771 MODULE_DEVICE_TABLE(usb, ttusb_dec_table); 1772