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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 | // SPDX-License-Identifier: GPL-2.0-or-later /* saa6752hs - i2c-driver for the saa6752hs by Philips Copyright (C) 2004 Andrew de Quincey AC-3 support: Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/poll.h> #include <linux/i2c.h> #include <linux/types.h> #include <linux/videodev2.h> #include <linux/init.h> #include <linux/crc32.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-common.h> #define MPEG_VIDEO_TARGET_BITRATE_MAX 27000 #define MPEG_VIDEO_MAX_BITRATE_MAX 27000 #define MPEG_TOTAL_TARGET_BITRATE_MAX 27000 #define MPEG_PID_MAX ((1 << 14) - 1) MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder"); MODULE_AUTHOR("Andrew de Quincey"); MODULE_LICENSE("GPL"); enum saa6752hs_videoformat { SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */ SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */ SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */ SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */ SAA6752HS_VF_UNKNOWN, }; struct saa6752hs_mpeg_params { /* transport streams */ __u16 ts_pid_pmt; __u16 ts_pid_audio; __u16 ts_pid_video; __u16 ts_pid_pcr; /* audio */ enum v4l2_mpeg_audio_encoding au_encoding; enum v4l2_mpeg_audio_l2_bitrate au_l2_bitrate; enum v4l2_mpeg_audio_ac3_bitrate au_ac3_bitrate; /* video */ enum v4l2_mpeg_video_aspect vi_aspect; enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode; __u32 vi_bitrate; __u32 vi_bitrate_peak; }; static const struct v4l2_format v4l2_format_table[] = { [SAA6752HS_VF_D1] = { .fmt = { .pix = { .width = 720, .height = 576 }}}, [SAA6752HS_VF_2_3_D1] = { .fmt = { .pix = { .width = 480, .height = 576 }}}, [SAA6752HS_VF_1_2_D1] = { .fmt = { .pix = { .width = 352, .height = 576 }}}, [SAA6752HS_VF_SIF] = { .fmt = { .pix = { .width = 352, .height = 288 }}}, [SAA6752HS_VF_UNKNOWN] = { .fmt = { .pix = { .width = 0, .height = 0}}}, }; struct saa6752hs_state { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; struct { /* video bitrate mode control cluster */ struct v4l2_ctrl *video_bitrate_mode; struct v4l2_ctrl *video_bitrate; struct v4l2_ctrl *video_bitrate_peak; }; u32 revision; int has_ac3; struct saa6752hs_mpeg_params params; enum saa6752hs_videoformat video_format; v4l2_std_id standard; }; enum saa6752hs_command { SAA6752HS_COMMAND_RESET = 0, SAA6752HS_COMMAND_STOP = 1, SAA6752HS_COMMAND_START = 2, SAA6752HS_COMMAND_PAUSE = 3, SAA6752HS_COMMAND_RECONFIGURE = 4, SAA6752HS_COMMAND_SLEEP = 5, SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6, SAA6752HS_COMMAND_MAX }; static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd) { return container_of(sd, struct saa6752hs_state, sd); } /* ---------------------------------------------------------------------- */ static const u8 PAT[] = { 0xc2, /* i2c register */ 0x00, /* table number for encoder */ 0x47, /* sync */ 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */ 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ 0x00, /* PSI pointer to start of table */ 0x00, /* tid(0) */ 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */ 0x00, 0x01, /* transport_stream_id(1) */ 0xc1, /* version_number(0), current_next_indicator(1) */ 0x00, 0x00, /* section_number(0), last_section_number(0) */ 0x00, 0x01, /* program_number(1) */ 0xe0, 0x00, /* PMT PID */ 0x00, 0x00, 0x00, 0x00 /* CRC32 */ }; static const u8 PMT[] = { 0xc2, /* i2c register */ 0x01, /* table number for encoder */ 0x47, /* sync */ 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */ 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ 0x00, /* PSI pointer to start of table */ 0x02, /* tid(2) */ 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */ 0x00, 0x01, /* program_number(1) */ 0xc1, /* version_number(0), current_next_indicator(1) */ 0x00, 0x00, /* section_number(0), last_section_number(0) */ 0xe0, 0x00, /* PCR_PID */ 0xf0, 0x00, /* program_info_length(0) */ 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */ 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */ 0x00, 0x00, 0x00, 0x00 /* CRC32 */ }; static const u8 PMT_AC3[] = { 0xc2, /* i2c register */ 0x01, /* table number for encoder(1) */ 0x47, /* sync */ 0x40, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0) */ 0x10, /* PMT PID (0x0010) */ 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ 0x00, /* PSI pointer to start of table */ 0x02, /* TID (2) */ 0xb0, 0x1a, /* section_syntax_indicator(1), section_length(26) */ 0x00, 0x01, /* program_number(1) */ 0xc1, /* version_number(0), current_next_indicator(1) */ 0x00, 0x00, /* section_number(0), last_section_number(0) */ 0xe1, 0x04, /* PCR_PID (0x0104) */ 0xf0, 0x00, /* program_info_length(0) */ 0x02, 0xe1, 0x00, 0xf0, 0x00, /* video stream type(2), pid */ 0x06, 0xe1, 0x03, 0xf0, 0x03, /* audio stream type(6), pid */ 0x6a, /* AC3 */ 0x01, /* Descriptor_length(1) */ 0x00, /* component_type_flag(0), bsid_flag(0), mainid_flag(0), asvc_flag(0), reserved flags(0) */ 0xED, 0xDE, 0x2D, 0xF3 /* CRC32 BE */ }; static const struct saa6752hs_mpeg_params param_defaults = { .ts_pid_pmt = 16, .ts_pid_video = 260, .ts_pid_audio = 256, .ts_pid_pcr = 259, .vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3, .vi_bitrate = 4000, .vi_bitrate_peak = 6000, .vi_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, .au_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2, .au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K, .au_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_256K, }; /* ---------------------------------------------------------------------- */ static int saa6752hs_chip_command(struct i2c_client *client, enum saa6752hs_command command) { unsigned char buf[3]; unsigned long timeout; int status = 0; /* execute the command */ switch(command) { case SAA6752HS_COMMAND_RESET: buf[0] = 0x00; break; case SAA6752HS_COMMAND_STOP: buf[0] = 0x03; break; case SAA6752HS_COMMAND_START: buf[0] = 0x02; break; case SAA6752HS_COMMAND_PAUSE: buf[0] = 0x04; break; case SAA6752HS_COMMAND_RECONFIGURE: buf[0] = 0x05; break; case SAA6752HS_COMMAND_SLEEP: buf[0] = 0x06; break; case SAA6752HS_COMMAND_RECONFIGURE_FORCE: buf[0] = 0x07; break; default: return -EINVAL; } /* set it and wait for it to be so */ i2c_master_send(client, buf, 1); timeout = jiffies + HZ * 3; for (;;) { /* get the current status */ buf[0] = 0x10; i2c_master_send(client, buf, 1); i2c_master_recv(client, buf, 1); if (!(buf[0] & 0x20)) break; if (time_after(jiffies,timeout)) { status = -ETIMEDOUT; break; } msleep(10); } /* delay a bit to let encoder settle */ msleep(50); return status; } static inline void set_reg8(struct i2c_client *client, uint8_t reg, uint8_t val) { u8 buf[2]; buf[0] = reg; buf[1] = val; i2c_master_send(client, buf, 2); } static inline void set_reg16(struct i2c_client *client, uint8_t reg, uint16_t val) { u8 buf[3]; buf[0] = reg; buf[1] = val >> 8; buf[2] = val & 0xff; i2c_master_send(client, buf, 3); } static int saa6752hs_set_bitrate(struct i2c_client *client, struct saa6752hs_state *h) { struct saa6752hs_mpeg_params *params = &h->params; int tot_bitrate; int is_384k; /* set the bitrate mode */ set_reg8(client, 0x71, params->vi_bitrate_mode != V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); /* set the video bitrate */ if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) { /* set the target bitrate */ set_reg16(client, 0x80, params->vi_bitrate); /* set the max bitrate */ set_reg16(client, 0x81, params->vi_bitrate_peak); tot_bitrate = params->vi_bitrate_peak; } else { /* set the target bitrate (no max bitrate for CBR) */ set_reg16(client, 0x81, params->vi_bitrate); tot_bitrate = params->vi_bitrate; } /* set the audio encoding */ set_reg8(client, 0x93, params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3); /* set the audio bitrate */ if (params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) is_384k = V4L2_MPEG_AUDIO_AC3_BITRATE_384K == params->au_ac3_bitrate; else is_384k = V4L2_MPEG_AUDIO_L2_BITRATE_384K == params->au_l2_bitrate; set_reg8(client, 0x94, is_384k); tot_bitrate += is_384k ? 384 : 256; /* Note: the total max bitrate is determined by adding the video and audio bitrates together and also adding an extra 768kbit/s to stay on the safe side. If more control should be required, then an extra MPEG control should be added. */ tot_bitrate += 768; if (tot_bitrate > MPEG_TOTAL_TARGET_BITRATE_MAX) tot_bitrate = MPEG_TOTAL_TARGET_BITRATE_MAX; /* set the total bitrate */ set_reg16(client, 0xb1, tot_bitrate); return 0; } static int saa6752hs_try_ctrl(struct v4l2_ctrl *ctrl) { struct saa6752hs_state *h = container_of(ctrl->handler, struct saa6752hs_state, hdl); switch (ctrl->id) { case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: /* peak bitrate shall be >= normal bitrate */ if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR && h->video_bitrate_peak->val < h->video_bitrate->val) h->video_bitrate_peak->val = h->video_bitrate->val; break; } return 0; } static int saa6752hs_s_ctrl(struct v4l2_ctrl *ctrl) { struct saa6752hs_state *h = container_of(ctrl->handler, struct saa6752hs_state, hdl); struct saa6752hs_mpeg_params *params = &h->params; switch (ctrl->id) { case V4L2_CID_MPEG_STREAM_TYPE: break; case V4L2_CID_MPEG_STREAM_PID_PMT: params->ts_pid_pmt = ctrl->val; break; case V4L2_CID_MPEG_STREAM_PID_AUDIO: params->ts_pid_audio = ctrl->val; break; case V4L2_CID_MPEG_STREAM_PID_VIDEO: params->ts_pid_video = ctrl->val; break; case V4L2_CID_MPEG_STREAM_PID_PCR: params->ts_pid_pcr = ctrl->val; break; case V4L2_CID_MPEG_AUDIO_ENCODING: params->au_encoding = ctrl->val; break; case V4L2_CID_MPEG_AUDIO_L2_BITRATE: params->au_l2_bitrate = ctrl->val; break; case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: params->au_ac3_bitrate = ctrl->val; break; case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: break; case V4L2_CID_MPEG_VIDEO_ENCODING: break; case V4L2_CID_MPEG_VIDEO_ASPECT: params->vi_aspect = ctrl->val; break; case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: params->vi_bitrate_mode = ctrl->val; params->vi_bitrate = h->video_bitrate->val / 1000; params->vi_bitrate_peak = h->video_bitrate_peak->val / 1000; v4l2_ctrl_activate(h->video_bitrate_peak, ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); break; default: return -EINVAL; } return 0; } static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes) { unsigned char buf[9], buf2[4]; struct saa6752hs_state *h = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); unsigned size; u32 crc; unsigned char localPAT[256]; unsigned char localPMT[256]; /* Set video format - must be done first as it resets other settings */ set_reg8(client, 0x41, h->video_format); /* Set number of lines in input signal */ set_reg8(client, 0x40, (h->standard & V4L2_STD_525_60) ? 1 : 0); /* set bitrate */ saa6752hs_set_bitrate(client, h); /* Set GOP structure {3, 13} */ set_reg16(client, 0x72, 0x030d); /* Set minimum Q-scale {4} */ set_reg8(client, 0x82, 0x04); /* Set maximum Q-scale {12} */ set_reg8(client, 0x83, 0x0c); /* Set Output Protocol */ set_reg8(client, 0xd0, 0x81); /* Set video output stream format {TS} */ set_reg8(client, 0xb0, 0x05); /* Set leading null byte for TS */ set_reg16(client, 0xf6, leading_null_bytes); /* compute PAT */ memcpy(localPAT, PAT, sizeof(PAT)); localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f); localPAT[18] = h->params.ts_pid_pmt & 0xff; crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4); localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF; localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF; localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF; localPAT[sizeof(PAT) - 1] = crc & 0xFF; /* compute PMT */ if (h->params.au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) { size = sizeof(PMT_AC3); memcpy(localPMT, PMT_AC3, size); } else { size = sizeof(PMT); memcpy(localPMT, PMT, size); } localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f); localPMT[4] = h->params.ts_pid_pmt & 0xff; localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F); localPMT[16] = h->params.ts_pid_pcr & 0xFF; localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F); localPMT[21] = h->params.ts_pid_video & 0xFF; localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F); localPMT[26] = h->params.ts_pid_audio & 0xFF; crc = crc32_be(~0, &localPMT[7], size - 7 - 4); localPMT[size - 4] = (crc >> 24) & 0xFF; localPMT[size - 3] = (crc >> 16) & 0xFF; localPMT[size - 2] = (crc >> 8) & 0xFF; localPMT[size - 1] = crc & 0xFF; /* Set Audio PID */ set_reg16(client, 0xc1, h->params.ts_pid_audio); /* Set Video PID */ set_reg16(client, 0xc0, h->params.ts_pid_video); /* Set PCR PID */ set_reg16(client, 0xc4, h->params.ts_pid_pcr); /* Send SI tables */ i2c_master_send(client, localPAT, sizeof(PAT)); i2c_master_send(client, localPMT, size); /* mute then unmute audio. This removes buzzing artefacts */ set_reg8(client, 0xa4, 1); set_reg8(client, 0xa4, 0); /* start it going */ saa6752hs_chip_command(client, SAA6752HS_COMMAND_START); /* readout current state */ buf[0] = 0xE1; buf[1] = 0xA7; buf[2] = 0xFE; buf[3] = 0x82; buf[4] = 0xB0; i2c_master_send(client, buf, 5); i2c_master_recv(client, buf2, 4); /* change aspect ratio */ buf[0] = 0xE0; buf[1] = 0xA7; buf[2] = 0xFE; buf[3] = 0x82; buf[4] = 0xB0; buf[5] = buf2[0]; switch (h->params.vi_aspect) { case V4L2_MPEG_VIDEO_ASPECT_16x9: buf[6] = buf2[1] | 0x40; break; case V4L2_MPEG_VIDEO_ASPECT_4x3: default: buf[6] = buf2[1] & 0xBF; break; } buf[7] = buf2[2]; buf[8] = buf2[3]; i2c_master_send(client, buf, 9); return 0; } static int saa6752hs_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *f = &format->format; struct saa6752hs_state *h = to_state(sd); if (format->pad) return -EINVAL; if (h->video_format == SAA6752HS_VF_UNKNOWN) h->video_format = SAA6752HS_VF_D1; f->width = v4l2_format_table[h->video_format].fmt.pix.width; f->height = v4l2_format_table[h->video_format].fmt.pix.height; f->code = MEDIA_BUS_FMT_FIXED; f->field = V4L2_FIELD_INTERLACED; f->colorspace = V4L2_COLORSPACE_SMPTE170M; return 0; } static int saa6752hs_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *f = &format->format; struct saa6752hs_state *h = to_state(sd); int dist_352, dist_480, dist_720; if (format->pad) return -EINVAL; f->code = MEDIA_BUS_FMT_FIXED; dist_352 = abs(f->width - 352); dist_480 = abs(f->width - 480); dist_720 = abs(f->width - 720); if (dist_720 < dist_480) { f->width = 720; f->height = 576; } else if (dist_480 < dist_352) { f->width = 480; f->height = 576; } else { f->width = 352; if (abs(f->height - 576) < abs(f->height - 288)) f->height = 576; else f->height = 288; } f->field = V4L2_FIELD_INTERLACED; f->colorspace = V4L2_COLORSPACE_SMPTE170M; if (format->which == V4L2_SUBDEV_FORMAT_TRY) { sd_state->pads->try_fmt = *f; return 0; } /* FIXME: translate and round width/height into EMPRESS subsample type: type | PAL | NTSC --------------------------- SIF | 352x288 | 352x240 1/2 D1 | 352x576 | 352x480 2/3 D1 | 480x576 | 480x480 D1 | 720x576 | 720x480 */ if (f->code != MEDIA_BUS_FMT_FIXED) return -EINVAL; if (f->width == 720) h->video_format = SAA6752HS_VF_D1; else if (f->width == 480) h->video_format = SAA6752HS_VF_2_3_D1; else if (f->height == 576) h->video_format = SAA6752HS_VF_1_2_D1; else h->video_format = SAA6752HS_VF_SIF; return 0; } static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { struct saa6752hs_state *h = to_state(sd); h->standard = std; return 0; } /* ----------------------------------------------------------------------- */ static const struct v4l2_ctrl_ops saa6752hs_ctrl_ops = { .try_ctrl = saa6752hs_try_ctrl, .s_ctrl = saa6752hs_s_ctrl, }; static const struct v4l2_subdev_core_ops saa6752hs_core_ops = { .init = saa6752hs_init, }; static const struct v4l2_subdev_video_ops saa6752hs_video_ops = { .s_std = saa6752hs_s_std, }; static const struct v4l2_subdev_pad_ops saa6752hs_pad_ops = { .get_fmt = saa6752hs_get_fmt, .set_fmt = saa6752hs_set_fmt, }; static const struct v4l2_subdev_ops saa6752hs_ops = { .core = &saa6752hs_core_ops, .video = &saa6752hs_video_ops, .pad = &saa6752hs_pad_ops, }; static int saa6752hs_probe(struct i2c_client *client) { struct saa6752hs_state *h; struct v4l2_subdev *sd; struct v4l2_ctrl_handler *hdl; u8 addr = 0x13; u8 data[12]; v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); h = devm_kzalloc(&client->dev, sizeof(*h), GFP_KERNEL); if (h == NULL) return -ENOMEM; sd = &h->sd; v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops); i2c_master_send(client, &addr, 1); i2c_master_recv(client, data, sizeof(data)); h->revision = (data[8] << 8) | data[9]; h->has_ac3 = 0; if (h->revision == 0x0206) { h->has_ac3 = 1; v4l_info(client, "supports AC-3\n"); } h->params = param_defaults; hdl = &h->hdl; v4l2_ctrl_handler_init(hdl, 14); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_AUDIO_ENCODING, h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_LAYER_2, 0x0d, V4L2_MPEG_AUDIO_ENCODING_LAYER_2); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_AUDIO_L2_BITRATE, V4L2_MPEG_AUDIO_L2_BITRATE_384K, ~((1 << V4L2_MPEG_AUDIO_L2_BITRATE_256K) | (1 << V4L2_MPEG_AUDIO_L2_BITRATE_384K)), V4L2_MPEG_AUDIO_L2_BITRATE_256K); if (h->has_ac3) v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_AUDIO_AC3_BITRATE, V4L2_MPEG_AUDIO_AC3_BITRATE_384K, ~((1 << V4L2_MPEG_AUDIO_AC3_BITRATE_256K) | (1 << V4L2_MPEG_AUDIO_AC3_BITRATE_384K)), V4L2_MPEG_AUDIO_AC3_BITRATE_256K); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ, V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, ~(1 << V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000), V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_VIDEO_ENCODING, V4L2_MPEG_VIDEO_ENCODING_MPEG_2, ~(1 << V4L2_MPEG_VIDEO_ENCODING_MPEG_2), V4L2_MPEG_VIDEO_ENCODING_MPEG_2); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_VIDEO_ASPECT, V4L2_MPEG_VIDEO_ASPECT_16x9, 0x01, V4L2_MPEG_VIDEO_ASPECT_4x3); h->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, 1000000, 27000000, 1000, 8000000); v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_STREAM_TYPE, V4L2_MPEG_STREAM_TYPE_MPEG2_TS, ~(1 << V4L2_MPEG_STREAM_TYPE_MPEG2_TS), V4L2_MPEG_STREAM_TYPE_MPEG2_TS); h->video_bitrate_mode = v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_VIDEO_BITRATE_MODE, V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); h->video_bitrate = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_VIDEO_BITRATE, 1000000, 27000000, 1000, 6000000); v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_STREAM_PID_PMT, 0, (1 << 14) - 1, 1, 16); v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_STREAM_PID_AUDIO, 0, (1 << 14) - 1, 1, 260); v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_STREAM_PID_VIDEO, 0, (1 << 14) - 1, 1, 256); v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, V4L2_CID_MPEG_STREAM_PID_PCR, 0, (1 << 14) - 1, 1, 259); sd->ctrl_handler = hdl; if (hdl->error) { int err = hdl->error; v4l2_ctrl_handler_free(hdl); return err; } v4l2_ctrl_cluster(3, &h->video_bitrate_mode); v4l2_ctrl_handler_setup(hdl); h->standard = 0; /* Assume 625 input lines */ return 0; } static void saa6752hs_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); v4l2_ctrl_handler_free(&to_state(sd)->hdl); } static const struct i2c_device_id saa6752hs_id[] = { { "saa6752hs", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, saa6752hs_id); static struct i2c_driver saa6752hs_driver = { .driver = { .name = "saa6752hs", }, .probe = saa6752hs_probe, .remove = saa6752hs_remove, .id_table = saa6752hs_id, }; module_i2c_driver(saa6752hs_driver); |