1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * cx18 ioctl system call 4 * 5 * Derived from ivtv-ioctl.c 6 * 7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> 8 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> 9 */ 10 11#include "cx18-driver.h" 12#include "cx18-io.h" 13#include "cx18-version.h" 14#include "cx18-mailbox.h" 15#include "cx18-i2c.h" 16#include "cx18-queue.h" 17#include "cx18-fileops.h" 18#include "cx18-vbi.h" 19#include "cx18-audio.h" 20#include "cx18-video.h" 21#include "cx18-streams.h" 22#include "cx18-ioctl.h" 23#include "cx18-gpio.h" 24#include "cx18-controls.h" 25#include "cx18-cards.h" 26#include "cx18-av-core.h" 27#include <media/tveeprom.h> 28#include <media/v4l2-event.h> 29 30static const struct v4l2_fmtdesc cx18_formats_yuv[] = { 31 { 32 .index = 0, 33 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 34 .pixelformat = V4L2_PIX_FMT_NV12_16L16, 35 }, 36 { 37 .index = 1, 38 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 39 .pixelformat = V4L2_PIX_FMT_UYVY, 40 }, 41}; 42 43static const struct v4l2_fmtdesc cx18_formats_mpeg[] = { 44 { 45 .index = 0, 46 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 47 .flags = V4L2_FMT_FLAG_COMPRESSED, 48 .pixelformat = V4L2_PIX_FMT_MPEG, 49 }, 50}; 51 52static int cx18_g_fmt_vid_cap(struct file *file, void *fh, 53 struct v4l2_format *fmt) 54{ 55 struct cx18_open_id *id = fh2id(fh); 56 struct cx18 *cx = id->cx; 57 struct cx18_stream *s = &cx->streams[id->type]; 58 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 59 60 pixfmt->width = cx->cxhdl.width; 61 pixfmt->height = cx->cxhdl.height; 62 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 63 pixfmt->field = V4L2_FIELD_INTERLACED; 64 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 65 pixfmt->pixelformat = s->pixelformat; 66 pixfmt->sizeimage = s->vb_bytes_per_frame; 67 pixfmt->bytesperline = s->vb_bytes_per_line; 68 } else { 69 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 70 pixfmt->sizeimage = 128 * 1024; 71 pixfmt->bytesperline = 0; 72 } 73 return 0; 74} 75 76static int cx18_try_fmt_vid_cap(struct file *file, void *fh, 77 struct v4l2_format *fmt) 78{ 79 struct cx18_open_id *id = fh2id(fh); 80 struct cx18 *cx = id->cx; 81 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 82 int w = pixfmt->width; 83 int h = pixfmt->height; 84 85 w = min(w, 720); 86 w = max(w, 720 / 16); 87 88 h = min(h, cx->is_50hz ? 576 : 480); 89 h = max(h, (cx->is_50hz ? 576 : 480) / 8); 90 91 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 92 if (pixfmt->pixelformat != V4L2_PIX_FMT_NV12_16L16 && 93 pixfmt->pixelformat != V4L2_PIX_FMT_UYVY) 94 pixfmt->pixelformat = V4L2_PIX_FMT_UYVY; 95 /* YUV height must be a multiple of 32 */ 96 h = round_up(h, 32); 97 /* 98 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 99 * UYUV YUV size is (Y=(h*720) + UV=(h*(720))) 100 */ 101 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12_16L16) { 102 pixfmt->sizeimage = h * 720 * 3 / 2; 103 pixfmt->bytesperline = 720; /* First plane */ 104 } else { 105 pixfmt->sizeimage = h * 720 * 2; 106 pixfmt->bytesperline = 1440; /* Packed */ 107 } 108 } else { 109 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 110 pixfmt->sizeimage = 128 * 1024; 111 pixfmt->bytesperline = 0; 112 } 113 114 pixfmt->width = w; 115 pixfmt->height = h; 116 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 117 pixfmt->field = V4L2_FIELD_INTERLACED; 118 return 0; 119} 120 121static int cx18_s_fmt_vid_cap(struct file *file, void *fh, 122 struct v4l2_format *fmt) 123{ 124 struct cx18_open_id *id = fh2id(fh); 125 struct cx18 *cx = id->cx; 126 struct v4l2_subdev_format format = { 127 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 128 }; 129 struct cx18_stream *s = &cx->streams[id->type]; 130 int ret; 131 int w, h; 132 133 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 134 if (ret) 135 return ret; 136 w = fmt->fmt.pix.width; 137 h = fmt->fmt.pix.height; 138 139 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 140 s->pixelformat == fmt->fmt.pix.pixelformat) 141 return 0; 142 143 if (atomic_read(&cx->ana_capturing) > 0) 144 return -EBUSY; 145 146 s->pixelformat = fmt->fmt.pix.pixelformat; 147 s->vb_bytes_per_frame = fmt->fmt.pix.sizeimage; 148 s->vb_bytes_per_line = fmt->fmt.pix.bytesperline; 149 150 format.format.width = cx->cxhdl.width = w; 151 format.format.height = cx->cxhdl.height = h; 152 format.format.code = MEDIA_BUS_FMT_FIXED; 153 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); 154 return cx18_g_fmt_vid_cap(file, fh, fmt); 155} 156 157u16 cx18_service2vbi(int type) 158{ 159 switch (type) { 160 case V4L2_SLICED_TELETEXT_B: 161 return CX18_SLICED_TYPE_TELETEXT_B; 162 case V4L2_SLICED_CAPTION_525: 163 return CX18_SLICED_TYPE_CAPTION_525; 164 case V4L2_SLICED_WSS_625: 165 return CX18_SLICED_TYPE_WSS_625; 166 case V4L2_SLICED_VPS: 167 return CX18_SLICED_TYPE_VPS; 168 default: 169 return 0; 170 } 171} 172 173/* Check if VBI services are allowed on the (field, line) for the video std */ 174static int valid_service_line(int field, int line, int is_pal) 175{ 176 return (is_pal && line >= 6 && 177 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || 178 (!is_pal && line >= 10 && line < 22); 179} 180 181/* 182 * For a (field, line, std) and inbound potential set of services for that line, 183 * return the first valid service of those passed in the incoming set for that 184 * line in priority order: 185 * CC, VPS, or WSS over TELETEXT for well known lines 186 * TELETEXT, before VPS, before CC, before WSS, for other lines 187 */ 188static u16 select_service_from_set(int field, int line, u16 set, int is_pal) 189{ 190 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); 191 int i; 192 193 set = set & valid_set; 194 if (set == 0 || !valid_service_line(field, line, is_pal)) 195 return 0; 196 if (!is_pal) { 197 if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) 198 return V4L2_SLICED_CAPTION_525; 199 } else { 200 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) 201 return V4L2_SLICED_VPS; 202 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) 203 return V4L2_SLICED_WSS_625; 204 if (line == 23) 205 return 0; 206 } 207 for (i = 0; i < 32; i++) { 208 if (BIT(i) & set) 209 return 1 << i; 210 } 211 return 0; 212} 213 214/* 215 * Expand the service_set of *fmt into valid service_lines for the std, 216 * and clear the passed in fmt->service_set 217 */ 218void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 219{ 220 u16 set = fmt->service_set; 221 int f, l; 222 223 fmt->service_set = 0; 224 for (f = 0; f < 2; f++) { 225 for (l = 0; l < 24; l++) 226 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); 227 } 228} 229 230/* 231 * Sanitize the service_lines in *fmt per the video std, and return 1 232 * if any service_line is left as valid after santization 233 */ 234static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 235{ 236 int f, l; 237 u16 set = 0; 238 239 for (f = 0; f < 2; f++) { 240 for (l = 0; l < 24; l++) { 241 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); 242 set |= fmt->service_lines[f][l]; 243 } 244 } 245 return set != 0; 246} 247 248/* Compute the service_set from the assumed valid service_lines of *fmt */ 249u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) 250{ 251 int f, l; 252 u16 set = 0; 253 254 for (f = 0; f < 2; f++) { 255 for (l = 0; l < 24; l++) 256 set |= fmt->service_lines[f][l]; 257 } 258 return set; 259} 260 261static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, 262 struct v4l2_format *fmt) 263{ 264 struct cx18 *cx = fh2id(fh)->cx; 265 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; 266 267 vbifmt->sampling_rate = 27000000; 268 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ 269 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4; 270 vbifmt->sample_format = V4L2_PIX_FMT_GREY; 271 vbifmt->start[0] = cx->vbi.start[0]; 272 vbifmt->start[1] = cx->vbi.start[1]; 273 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; 274 vbifmt->flags = 0; 275 vbifmt->reserved[0] = 0; 276 vbifmt->reserved[1] = 0; 277 return 0; 278} 279 280static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, 281 struct v4l2_format *fmt) 282{ 283 struct cx18 *cx = fh2id(fh)->cx; 284 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 285 286 /* sane, V4L2 spec compliant, defaults */ 287 vbifmt->reserved[0] = 0; 288 vbifmt->reserved[1] = 0; 289 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 290 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); 291 vbifmt->service_set = 0; 292 293 /* 294 * Fetch the configured service_lines and total service_set from the 295 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in 296 * fmt->fmt.sliced under valid calling conditions 297 */ 298 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) 299 return -EINVAL; 300 301 vbifmt->service_set = cx18_get_service_set(vbifmt); 302 return 0; 303} 304 305static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, 306 struct v4l2_format *fmt) 307{ 308 return cx18_g_fmt_vbi_cap(file, fh, fmt); 309} 310 311static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, 312 struct v4l2_format *fmt) 313{ 314 struct cx18 *cx = fh2id(fh)->cx; 315 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 316 317 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 318 vbifmt->reserved[0] = 0; 319 vbifmt->reserved[1] = 0; 320 321 /* If given a service set, expand it validly & clear passed in set */ 322 if (vbifmt->service_set) 323 cx18_expand_service_set(vbifmt, cx->is_50hz); 324 /* Sanitize the service_lines, and compute the new set if any valid */ 325 if (check_service_set(vbifmt, cx->is_50hz)) 326 vbifmt->service_set = cx18_get_service_set(vbifmt); 327 return 0; 328} 329 330static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 331 struct v4l2_format *fmt) 332{ 333 struct cx18_open_id *id = fh2id(fh); 334 struct cx18 *cx = id->cx; 335 int ret; 336 337 /* 338 * Changing the Encoder's Raw VBI parameters won't have any effect 339 * if any analog capture is ongoing 340 */ 341 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 342 return -EBUSY; 343 344 /* 345 * Set the digitizer registers for raw active VBI. 346 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 347 * calling conditions 348 */ 349 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 350 if (ret) 351 return ret; 352 353 /* Store our new v4l2 (non-)sliced VBI state */ 354 cx->vbi.sliced_in->service_set = 0; 355 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 356 357 return cx18_g_fmt_vbi_cap(file, fh, fmt); 358} 359 360static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 361 struct v4l2_format *fmt) 362{ 363 struct cx18_open_id *id = fh2id(fh); 364 struct cx18 *cx = id->cx; 365 int ret; 366 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 367 368 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 369 370 /* 371 * Changing the Encoder's Raw VBI parameters won't have any effect 372 * if any analog capture is ongoing 373 */ 374 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 375 return -EBUSY; 376 377 /* 378 * Set the service_lines requested in the digitizer/slicer registers. 379 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 380 * passed in fmt->fmt.sliced under valid calling conditions 381 */ 382 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 383 if (ret) 384 return ret; 385 /* Store our current v4l2 sliced VBI settings */ 386 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 387 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 388 return 0; 389} 390 391#ifdef CONFIG_VIDEO_ADV_DEBUG 392static int cx18_g_register(struct file *file, void *fh, 393 struct v4l2_dbg_register *reg) 394{ 395 struct cx18 *cx = fh2id(fh)->cx; 396 397 if (reg->reg & 0x3) 398 return -EINVAL; 399 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 400 return -EINVAL; 401 reg->size = 4; 402 reg->val = cx18_read_enc(cx, reg->reg); 403 return 0; 404} 405 406static int cx18_s_register(struct file *file, void *fh, 407 const struct v4l2_dbg_register *reg) 408{ 409 struct cx18 *cx = fh2id(fh)->cx; 410 411 if (reg->reg & 0x3) 412 return -EINVAL; 413 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 414 return -EINVAL; 415 cx18_write_enc(cx, reg->val, reg->reg); 416 return 0; 417} 418#endif 419 420static int cx18_querycap(struct file *file, void *fh, 421 struct v4l2_capability *vcap) 422{ 423 struct cx18_open_id *id = fh2id(fh); 424 struct cx18 *cx = id->cx; 425 426 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 427 strscpy(vcap->card, cx->card_name, sizeof(vcap->card)); 428 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS; 429 return 0; 430} 431 432static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 433{ 434 struct cx18 *cx = fh2id(fh)->cx; 435 436 return cx18_get_audio_input(cx, vin->index, vin); 437} 438 439static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 440{ 441 struct cx18 *cx = fh2id(fh)->cx; 442 443 vin->index = cx->audio_input; 444 return cx18_get_audio_input(cx, vin->index, vin); 445} 446 447static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 448{ 449 struct cx18 *cx = fh2id(fh)->cx; 450 451 if (vout->index >= cx->nof_audio_inputs) 452 return -EINVAL; 453 cx->audio_input = vout->index; 454 cx18_audio_set_io(cx); 455 return 0; 456} 457 458static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 459{ 460 struct cx18 *cx = fh2id(fh)->cx; 461 462 /* set it to defaults from our table */ 463 return cx18_get_input(cx, vin->index, vin); 464} 465 466static int cx18_g_pixelaspect(struct file *file, void *fh, 467 int type, struct v4l2_fract *f) 468{ 469 struct cx18 *cx = fh2id(fh)->cx; 470 471 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 472 return -EINVAL; 473 474 f->numerator = cx->is_50hz ? 54 : 11; 475 f->denominator = cx->is_50hz ? 59 : 10; 476 return 0; 477} 478 479static int cx18_g_selection(struct file *file, void *fh, 480 struct v4l2_selection *sel) 481{ 482 struct cx18 *cx = fh2id(fh)->cx; 483 484 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 485 return -EINVAL; 486 switch (sel->target) { 487 case V4L2_SEL_TGT_CROP_BOUNDS: 488 case V4L2_SEL_TGT_CROP_DEFAULT: 489 sel->r.top = sel->r.left = 0; 490 sel->r.width = 720; 491 sel->r.height = cx->is_50hz ? 576 : 480; 492 break; 493 default: 494 return -EINVAL; 495 } 496 return 0; 497} 498 499static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 500 struct v4l2_fmtdesc *fmt) 501{ 502 struct cx18_open_id *id = fh2id(fh); 503 504 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 505 if (fmt->index >= ARRAY_SIZE(cx18_formats_yuv)) 506 return -EINVAL; 507 *fmt = cx18_formats_yuv[fmt->index]; 508 return 0; 509 } 510 if (fmt->index) 511 return -EINVAL; 512 *fmt = cx18_formats_mpeg[0]; 513 return 0; 514} 515 516static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 517{ 518 struct cx18 *cx = fh2id(fh)->cx; 519 520 *i = cx->active_input; 521 return 0; 522} 523 524int cx18_s_input(struct file *file, void *fh, unsigned int inp) 525{ 526 struct cx18_open_id *id = fh2id(fh); 527 struct cx18 *cx = id->cx; 528 v4l2_std_id std = V4L2_STD_ALL; 529 const struct cx18_card_video_input *card_input = 530 cx->card->video_inputs + inp; 531 532 if (inp >= cx->nof_inputs) 533 return -EINVAL; 534 535 if (inp == cx->active_input) { 536 CX18_DEBUG_INFO("Input unchanged\n"); 537 return 0; 538 } 539 540 CX18_DEBUG_INFO("Changing input from %d to %d\n", 541 cx->active_input, inp); 542 543 cx->active_input = inp; 544 /* Set the audio input to whatever is appropriate for the input type. */ 545 cx->audio_input = cx->card->video_inputs[inp].audio_index; 546 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 547 std = cx->tuner_std; 548 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 549 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 550 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 551 552 /* prevent others from messing with the streams until 553 we're finished changing inputs. */ 554 cx18_mute(cx); 555 cx18_video_set_io(cx); 556 cx18_audio_set_io(cx); 557 cx18_unmute(cx); 558 return 0; 559} 560 561static int cx18_g_frequency(struct file *file, void *fh, 562 struct v4l2_frequency *vf) 563{ 564 struct cx18 *cx = fh2id(fh)->cx; 565 566 if (vf->tuner != 0) 567 return -EINVAL; 568 569 cx18_call_all(cx, tuner, g_frequency, vf); 570 return 0; 571} 572 573int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 574{ 575 struct cx18_open_id *id = fh2id(fh); 576 struct cx18 *cx = id->cx; 577 578 if (vf->tuner != 0) 579 return -EINVAL; 580 581 cx18_mute(cx); 582 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 583 cx18_call_all(cx, tuner, s_frequency, vf); 584 cx18_unmute(cx); 585 return 0; 586} 587 588static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 589{ 590 struct cx18 *cx = fh2id(fh)->cx; 591 592 *std = cx->std; 593 return 0; 594} 595 596int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 597{ 598 struct cx18_open_id *id = fh2id(fh); 599 struct cx18 *cx = id->cx; 600 601 if ((std & V4L2_STD_ALL) == 0) 602 return -EINVAL; 603 604 if (std == cx->std) 605 return 0; 606 607 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 608 atomic_read(&cx->ana_capturing) > 0) { 609 /* Switching standard would turn off the radio or mess 610 with already running streams, prevent that by 611 returning EBUSY. */ 612 return -EBUSY; 613 } 614 615 cx->std = std; 616 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 617 cx->is_50hz = !cx->is_60hz; 618 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 619 cx->cxhdl.width = 720; 620 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 621 /* 622 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 623 * UYUV YUV size is (Y=(h*720) + UV=(h*(720))) 624 */ 625 if (cx->streams[CX18_ENC_STREAM_TYPE_YUV].pixelformat == V4L2_PIX_FMT_NV12_16L16) { 626 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame = 627 cx->cxhdl.height * 720 * 3 / 2; 628 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 720; 629 } else { 630 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame = 631 cx->cxhdl.height * 720 * 2; 632 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 1440; 633 } 634 cx->vbi.count = cx->is_50hz ? 18 : 12; 635 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 636 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 637 CX18_DEBUG_INFO("Switching standard to %llx.\n", 638 (unsigned long long) cx->std); 639 640 /* Tuner */ 641 cx18_call_all(cx, video, s_std, cx->std); 642 return 0; 643} 644 645static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 646{ 647 struct cx18_open_id *id = fh2id(fh); 648 struct cx18 *cx = id->cx; 649 650 if (vt->index != 0) 651 return -EINVAL; 652 653 cx18_call_all(cx, tuner, s_tuner, vt); 654 return 0; 655} 656 657static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 658{ 659 struct cx18 *cx = fh2id(fh)->cx; 660 661 if (vt->index != 0) 662 return -EINVAL; 663 664 cx18_call_all(cx, tuner, g_tuner, vt); 665 666 if (vt->type == V4L2_TUNER_RADIO) 667 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 668 else 669 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 670 return 0; 671} 672 673static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 674 struct v4l2_sliced_vbi_cap *cap) 675{ 676 struct cx18 *cx = fh2id(fh)->cx; 677 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 678 int f, l; 679 680 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 681 return -EINVAL; 682 683 cap->service_set = 0; 684 for (f = 0; f < 2; f++) { 685 for (l = 0; l < 24; l++) { 686 if (valid_service_line(f, l, cx->is_50hz)) { 687 /* 688 * We can find all v4l2 supported vbi services 689 * for the standard, on a valid line for the std 690 */ 691 cap->service_lines[f][l] = set; 692 cap->service_set |= set; 693 } else 694 cap->service_lines[f][l] = 0; 695 } 696 } 697 for (f = 0; f < 3; f++) 698 cap->reserved[f] = 0; 699 return 0; 700} 701 702static int _cx18_process_idx_data(struct cx18_buffer *buf, 703 struct v4l2_enc_idx *idx) 704{ 705 int consumed, remaining; 706 struct v4l2_enc_idx_entry *e_idx; 707 struct cx18_enc_idx_entry *e_buf; 708 709 /* Frame type lookup: 1=I, 2=P, 4=B */ 710 static const int mapping[8] = { 711 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 712 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 713 }; 714 715 /* 716 * Assumption here is that a buf holds an integral number of 717 * struct cx18_enc_idx_entry objects and is properly aligned. 718 * This is enforced by the module options on IDX buffer sizes. 719 */ 720 remaining = buf->bytesused - buf->readpos; 721 consumed = 0; 722 e_idx = &idx->entry[idx->entries]; 723 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 724 725 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 726 idx->entries < V4L2_ENC_IDX_ENTRIES) { 727 728 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 729 | le32_to_cpu(e_buf->offset_low); 730 731 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 732 | le32_to_cpu(e_buf->pts_low); 733 734 e_idx->length = le32_to_cpu(e_buf->length); 735 736 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 737 738 e_idx->reserved[0] = 0; 739 e_idx->reserved[1] = 0; 740 741 idx->entries++; 742 e_idx = &idx->entry[idx->entries]; 743 e_buf++; 744 745 remaining -= sizeof(struct cx18_enc_idx_entry); 746 consumed += sizeof(struct cx18_enc_idx_entry); 747 } 748 749 /* Swallow any partial entries at the end, if there are any */ 750 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 751 consumed += remaining; 752 753 buf->readpos += consumed; 754 return consumed; 755} 756 757static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 758 struct v4l2_enc_idx *idx) 759{ 760 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 761 return -EINVAL; 762 763 if (mdl->curr_buf == NULL) 764 mdl->curr_buf = list_first_entry(&mdl->buf_list, 765 struct cx18_buffer, list); 766 767 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 768 /* 769 * For some reason we've exhausted the buffers, but the MDL 770 * object still said some data was unread. 771 * Fix that and bail out. 772 */ 773 mdl->readpos = mdl->bytesused; 774 return 0; 775 } 776 777 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 778 779 /* Skip any empty buffers in the MDL */ 780 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 781 continue; 782 783 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 784 785 /* exit when MDL drained or request satisfied */ 786 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 787 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 788 mdl->readpos >= mdl->bytesused) 789 break; 790 } 791 return 0; 792} 793 794static int cx18_g_enc_index(struct file *file, void *fh, 795 struct v4l2_enc_idx *idx) 796{ 797 struct cx18 *cx = fh2id(fh)->cx; 798 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 799 s32 tmp; 800 struct cx18_mdl *mdl; 801 802 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 803 return -EINVAL; 804 805 /* Compute the best case number of entries we can buffer */ 806 tmp = s->buffers - 807 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 808 if (tmp <= 0) 809 tmp = 1; 810 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 811 812 /* Fill out the header of the return structure */ 813 idx->entries = 0; 814 idx->entries_cap = tmp; 815 memset(idx->reserved, 0, sizeof(idx->reserved)); 816 817 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 818 do { 819 mdl = cx18_dequeue(s, &s->q_full); 820 if (mdl == NULL) /* No more IDX data right now */ 821 break; 822 823 /* Extract the Index entry data from the MDL and buffers */ 824 cx18_process_idx_data(s, mdl, idx); 825 if (mdl->readpos < mdl->bytesused) { 826 /* We finished with data remaining, push the MDL back */ 827 cx18_push(s, mdl, &s->q_full); 828 break; 829 } 830 831 /* We drained this MDL, schedule it to go to the firmware */ 832 cx18_enqueue(s, mdl, &s->q_free); 833 834 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 835 836 /* Tell the work handler to send free IDX MDLs to the firmware */ 837 cx18_stream_load_fw_queue(s); 838 return 0; 839} 840 841static int cx18_encoder_cmd(struct file *file, void *fh, 842 struct v4l2_encoder_cmd *enc) 843{ 844 struct cx18_open_id *id = fh2id(fh); 845 struct cx18 *cx = id->cx; 846 u32 h; 847 848 switch (enc->cmd) { 849 case V4L2_ENC_CMD_START: 850 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 851 enc->flags = 0; 852 return cx18_start_capture(id); 853 854 case V4L2_ENC_CMD_STOP: 855 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 856 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 857 cx18_stop_capture(&cx->streams[id->type], 858 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 859 break; 860 861 case V4L2_ENC_CMD_PAUSE: 862 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 863 enc->flags = 0; 864 if (!atomic_read(&cx->ana_capturing)) 865 return -EPERM; 866 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 867 return 0; 868 h = cx18_find_handle(cx); 869 if (h == CX18_INVALID_TASK_HANDLE) { 870 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n"); 871 return -EBADFD; 872 } 873 cx18_mute(cx); 874 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 875 break; 876 877 case V4L2_ENC_CMD_RESUME: 878 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 879 enc->flags = 0; 880 if (!atomic_read(&cx->ana_capturing)) 881 return -EPERM; 882 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 883 return 0; 884 h = cx18_find_handle(cx); 885 if (h == CX18_INVALID_TASK_HANDLE) { 886 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n"); 887 return -EBADFD; 888 } 889 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 890 cx18_unmute(cx); 891 break; 892 893 default: 894 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 895 return -EINVAL; 896 } 897 return 0; 898} 899 900static int cx18_try_encoder_cmd(struct file *file, void *fh, 901 struct v4l2_encoder_cmd *enc) 902{ 903 struct cx18 *cx = fh2id(fh)->cx; 904 905 switch (enc->cmd) { 906 case V4L2_ENC_CMD_START: 907 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 908 enc->flags = 0; 909 break; 910 911 case V4L2_ENC_CMD_STOP: 912 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 913 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 914 break; 915 916 case V4L2_ENC_CMD_PAUSE: 917 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 918 enc->flags = 0; 919 break; 920 921 case V4L2_ENC_CMD_RESUME: 922 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 923 enc->flags = 0; 924 break; 925 926 default: 927 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 928 return -EINVAL; 929 } 930 return 0; 931} 932 933static int cx18_log_status(struct file *file, void *fh) 934{ 935 struct cx18 *cx = fh2id(fh)->cx; 936 struct v4l2_input vidin; 937 struct v4l2_audio audin; 938 int i; 939 940 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 941 if (cx->hw_flags & CX18_HW_TVEEPROM) { 942 struct tveeprom tv; 943 944 cx18_read_eeprom(cx, &tv); 945 } 946 cx18_call_all(cx, core, log_status); 947 cx18_get_input(cx, cx->active_input, &vidin); 948 cx18_get_audio_input(cx, cx->audio_input, &audin); 949 CX18_INFO("Video Input: %s\n", vidin.name); 950 CX18_INFO("Audio Input: %s\n", audin.name); 951 mutex_lock(&cx->gpio_lock); 952 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 953 cx->gpio_dir, cx->gpio_val); 954 mutex_unlock(&cx->gpio_lock); 955 CX18_INFO("Tuner: %s\n", 956 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 957 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 958 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 959 for (i = 0; i < CX18_MAX_STREAMS; i++) { 960 struct cx18_stream *s = &cx->streams[i]; 961 962 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 963 continue; 964 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 965 s->name, s->s_flags, 966 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 967 / s->buffers, 968 (s->buffers * s->buf_size) / 1024, s->buffers); 969 } 970 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 971 (long long)cx->mpg_data_received, 972 (long long)cx->vbi_data_inserted); 973 return 0; 974} 975 976static long cx18_default(struct file *file, void *fh, bool valid_prio, 977 unsigned int cmd, void *arg) 978{ 979 struct cx18 *cx = fh2id(fh)->cx; 980 981 switch (cmd) { 982 case VIDIOC_INT_RESET: { 983 u32 val = *(u32 *)arg; 984 985 if ((val == 0) || (val & 0x01)) 986 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 987 (u32) CX18_GPIO_RESET_Z8F0811); 988 break; 989 } 990 991 default: 992 return -ENOTTY; 993 } 994 return 0; 995} 996 997static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 998 .vidioc_querycap = cx18_querycap, 999 .vidioc_s_audio = cx18_s_audio, 1000 .vidioc_g_audio = cx18_g_audio, 1001 .vidioc_enumaudio = cx18_enumaudio, 1002 .vidioc_enum_input = cx18_enum_input, 1003 .vidioc_g_pixelaspect = cx18_g_pixelaspect, 1004 .vidioc_g_selection = cx18_g_selection, 1005 .vidioc_g_input = cx18_g_input, 1006 .vidioc_s_input = cx18_s_input, 1007 .vidioc_g_frequency = cx18_g_frequency, 1008 .vidioc_s_frequency = cx18_s_frequency, 1009 .vidioc_s_tuner = cx18_s_tuner, 1010 .vidioc_g_tuner = cx18_g_tuner, 1011 .vidioc_g_enc_index = cx18_g_enc_index, 1012 .vidioc_g_std = cx18_g_std, 1013 .vidioc_s_std = cx18_s_std, 1014 .vidioc_log_status = cx18_log_status, 1015 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1016 .vidioc_encoder_cmd = cx18_encoder_cmd, 1017 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1018 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1019 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1020 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1021 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1022 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1023 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1024 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1025 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1026 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1027 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1028#ifdef CONFIG_VIDEO_ADV_DEBUG 1029 .vidioc_g_register = cx18_g_register, 1030 .vidioc_s_register = cx18_s_register, 1031#endif 1032 .vidioc_default = cx18_default, 1033 1034 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1035 .vidioc_querybuf = vb2_ioctl_querybuf, 1036 .vidioc_qbuf = vb2_ioctl_qbuf, 1037 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1038 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1039 .vidioc_streamon = vb2_ioctl_streamon, 1040 .vidioc_streamoff = vb2_ioctl_streamoff, 1041 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1042 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1043 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1044}; 1045 1046void cx18_set_funcs(struct video_device *vdev) 1047{ 1048 vdev->ioctl_ops = &cx18_ioctl_ops; 1049} 1050