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 30 u16 cx18_service2vbi(int type) 31 { 32 switch (type) { 33 case V4L2_SLICED_TELETEXT_B: 34 return CX18_SLICED_TYPE_TELETEXT_B; 35 case V4L2_SLICED_CAPTION_525: 36 return CX18_SLICED_TYPE_CAPTION_525; 37 case V4L2_SLICED_WSS_625: 38 return CX18_SLICED_TYPE_WSS_625; 39 case V4L2_SLICED_VPS: 40 return CX18_SLICED_TYPE_VPS; 41 default: 42 return 0; 43 } 44 } 45 46 /* Check if VBI services are allowed on the (field, line) for the video std */ 47 static int valid_service_line(int field, int line, int is_pal) 48 { 49 return (is_pal && line >= 6 && 50 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || 51 (!is_pal && line >= 10 && line < 22); 52 } 53 54 /* 55 * For a (field, line, std) and inbound potential set of services for that line, 56 * return the first valid service of those passed in the incoming set for that 57 * line in priority order: 58 * CC, VPS, or WSS over TELETEXT for well known lines 59 * TELETEXT, before VPS, before CC, before WSS, for other lines 60 */ 61 static u16 select_service_from_set(int field, int line, u16 set, int is_pal) 62 { 63 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); 64 int i; 65 66 set = set & valid_set; 67 if (set == 0 || !valid_service_line(field, line, is_pal)) 68 return 0; 69 if (!is_pal) { 70 if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) 71 return V4L2_SLICED_CAPTION_525; 72 } else { 73 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) 74 return V4L2_SLICED_VPS; 75 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) 76 return V4L2_SLICED_WSS_625; 77 if (line == 23) 78 return 0; 79 } 80 for (i = 0; i < 32; i++) { 81 if (BIT(i) & set) 82 return 1 << i; 83 } 84 return 0; 85 } 86 87 /* 88 * Expand the service_set of *fmt into valid service_lines for the std, 89 * and clear the passed in fmt->service_set 90 */ 91 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 92 { 93 u16 set = fmt->service_set; 94 int f, l; 95 96 fmt->service_set = 0; 97 for (f = 0; f < 2; f++) { 98 for (l = 0; l < 24; l++) 99 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); 100 } 101 } 102 103 /* 104 * Sanitize the service_lines in *fmt per the video std, and return 1 105 * if any service_line is left as valid after santization 106 */ 107 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 108 { 109 int f, l; 110 u16 set = 0; 111 112 for (f = 0; f < 2; f++) { 113 for (l = 0; l < 24; l++) { 114 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); 115 set |= fmt->service_lines[f][l]; 116 } 117 } 118 return set != 0; 119 } 120 121 /* Compute the service_set from the assumed valid service_lines of *fmt */ 122 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) 123 { 124 int f, l; 125 u16 set = 0; 126 127 for (f = 0; f < 2; f++) { 128 for (l = 0; l < 24; l++) 129 set |= fmt->service_lines[f][l]; 130 } 131 return set; 132 } 133 134 static int cx18_g_fmt_vid_cap(struct file *file, void *fh, 135 struct v4l2_format *fmt) 136 { 137 struct cx18_open_id *id = fh2id(fh); 138 struct cx18 *cx = id->cx; 139 struct cx18_stream *s = &cx->streams[id->type]; 140 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 141 142 pixfmt->width = cx->cxhdl.width; 143 pixfmt->height = cx->cxhdl.height; 144 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 145 pixfmt->field = V4L2_FIELD_INTERLACED; 146 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 147 pixfmt->pixelformat = s->pixelformat; 148 pixfmt->sizeimage = s->vb_bytes_per_frame; 149 pixfmt->bytesperline = s->vb_bytes_per_line; 150 } else { 151 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 152 pixfmt->sizeimage = 128 * 1024; 153 pixfmt->bytesperline = 0; 154 } 155 return 0; 156 } 157 158 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, 159 struct v4l2_format *fmt) 160 { 161 struct cx18 *cx = fh2id(fh)->cx; 162 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; 163 164 vbifmt->sampling_rate = 27000000; 165 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ 166 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4; 167 vbifmt->sample_format = V4L2_PIX_FMT_GREY; 168 vbifmt->start[0] = cx->vbi.start[0]; 169 vbifmt->start[1] = cx->vbi.start[1]; 170 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; 171 vbifmt->flags = 0; 172 vbifmt->reserved[0] = 0; 173 vbifmt->reserved[1] = 0; 174 return 0; 175 } 176 177 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, 178 struct v4l2_format *fmt) 179 { 180 struct cx18 *cx = fh2id(fh)->cx; 181 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 182 183 /* sane, V4L2 spec compliant, defaults */ 184 vbifmt->reserved[0] = 0; 185 vbifmt->reserved[1] = 0; 186 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 187 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); 188 vbifmt->service_set = 0; 189 190 /* 191 * Fetch the configured service_lines and total service_set from the 192 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in 193 * fmt->fmt.sliced under valid calling conditions 194 */ 195 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) 196 return -EINVAL; 197 198 vbifmt->service_set = cx18_get_service_set(vbifmt); 199 return 0; 200 } 201 202 static int cx18_try_fmt_vid_cap(struct file *file, void *fh, 203 struct v4l2_format *fmt) 204 { 205 struct cx18_open_id *id = fh2id(fh); 206 struct cx18 *cx = id->cx; 207 int w = fmt->fmt.pix.width; 208 int h = fmt->fmt.pix.height; 209 int min_h = 2; 210 211 w = min(w, 720); 212 w = max(w, 2); 213 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 214 /* YUV height must be a multiple of 32 */ 215 h &= ~0x1f; 216 min_h = 32; 217 } 218 h = min(h, cx->is_50hz ? 576 : 480); 219 h = max(h, min_h); 220 221 fmt->fmt.pix.width = w; 222 fmt->fmt.pix.height = h; 223 return 0; 224 } 225 226 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, 227 struct v4l2_format *fmt) 228 { 229 return cx18_g_fmt_vbi_cap(file, fh, fmt); 230 } 231 232 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, 233 struct v4l2_format *fmt) 234 { 235 struct cx18 *cx = fh2id(fh)->cx; 236 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 237 238 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 239 vbifmt->reserved[0] = 0; 240 vbifmt->reserved[1] = 0; 241 242 /* If given a service set, expand it validly & clear passed in set */ 243 if (vbifmt->service_set) 244 cx18_expand_service_set(vbifmt, cx->is_50hz); 245 /* Sanitize the service_lines, and compute the new set if any valid */ 246 if (check_service_set(vbifmt, cx->is_50hz)) 247 vbifmt->service_set = cx18_get_service_set(vbifmt); 248 return 0; 249 } 250 251 static int cx18_s_fmt_vid_cap(struct file *file, void *fh, 252 struct v4l2_format *fmt) 253 { 254 struct cx18_open_id *id = fh2id(fh); 255 struct cx18 *cx = id->cx; 256 struct v4l2_subdev_format format = { 257 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 258 }; 259 struct cx18_stream *s = &cx->streams[id->type]; 260 int ret; 261 int w, h; 262 263 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 264 if (ret) 265 return ret; 266 w = fmt->fmt.pix.width; 267 h = fmt->fmt.pix.height; 268 269 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 270 s->pixelformat == fmt->fmt.pix.pixelformat) 271 return 0; 272 273 if (atomic_read(&cx->ana_capturing) > 0) 274 return -EBUSY; 275 276 s->pixelformat = fmt->fmt.pix.pixelformat; 277 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 278 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ 279 if (s->pixelformat == V4L2_PIX_FMT_NV12_16L16) { 280 s->vb_bytes_per_frame = h * 720 * 3 / 2; 281 s->vb_bytes_per_line = 720; /* First plane */ 282 } else { 283 s->vb_bytes_per_frame = h * 720 * 2; 284 s->vb_bytes_per_line = 1440; /* Packed */ 285 } 286 287 format.format.width = cx->cxhdl.width = w; 288 format.format.height = cx->cxhdl.height = h; 289 format.format.code = MEDIA_BUS_FMT_FIXED; 290 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); 291 return cx18_g_fmt_vid_cap(file, fh, fmt); 292 } 293 294 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 295 struct v4l2_format *fmt) 296 { 297 struct cx18_open_id *id = fh2id(fh); 298 struct cx18 *cx = id->cx; 299 int ret; 300 301 /* 302 * Changing the Encoder's Raw VBI parameters won't have any effect 303 * if any analog capture is ongoing 304 */ 305 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 306 return -EBUSY; 307 308 /* 309 * Set the digitizer registers for raw active VBI. 310 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 311 * calling conditions 312 */ 313 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 314 if (ret) 315 return ret; 316 317 /* Store our new v4l2 (non-)sliced VBI state */ 318 cx->vbi.sliced_in->service_set = 0; 319 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 320 321 return cx18_g_fmt_vbi_cap(file, fh, fmt); 322 } 323 324 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 325 struct v4l2_format *fmt) 326 { 327 struct cx18_open_id *id = fh2id(fh); 328 struct cx18 *cx = id->cx; 329 int ret; 330 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 331 332 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 333 334 /* 335 * Changing the Encoder's Raw VBI parameters won't have any effect 336 * if any analog capture is ongoing 337 */ 338 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 339 return -EBUSY; 340 341 /* 342 * Set the service_lines requested in the digitizer/slicer registers. 343 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 344 * passed in fmt->fmt.sliced under valid calling conditions 345 */ 346 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 347 if (ret) 348 return ret; 349 /* Store our current v4l2 sliced VBI settings */ 350 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 351 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 352 return 0; 353 } 354 355 #ifdef CONFIG_VIDEO_ADV_DEBUG 356 static int cx18_g_register(struct file *file, void *fh, 357 struct v4l2_dbg_register *reg) 358 { 359 struct cx18 *cx = fh2id(fh)->cx; 360 361 if (reg->reg & 0x3) 362 return -EINVAL; 363 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 364 return -EINVAL; 365 reg->size = 4; 366 reg->val = cx18_read_enc(cx, reg->reg); 367 return 0; 368 } 369 370 static int cx18_s_register(struct file *file, void *fh, 371 const struct v4l2_dbg_register *reg) 372 { 373 struct cx18 *cx = fh2id(fh)->cx; 374 375 if (reg->reg & 0x3) 376 return -EINVAL; 377 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 378 return -EINVAL; 379 cx18_write_enc(cx, reg->val, reg->reg); 380 return 0; 381 } 382 #endif 383 384 static int cx18_querycap(struct file *file, void *fh, 385 struct v4l2_capability *vcap) 386 { 387 struct cx18_open_id *id = fh2id(fh); 388 struct cx18 *cx = id->cx; 389 390 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 391 strscpy(vcap->card, cx->card_name, sizeof(vcap->card)); 392 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS; 393 return 0; 394 } 395 396 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 397 { 398 struct cx18 *cx = fh2id(fh)->cx; 399 400 return cx18_get_audio_input(cx, vin->index, vin); 401 } 402 403 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 404 { 405 struct cx18 *cx = fh2id(fh)->cx; 406 407 vin->index = cx->audio_input; 408 return cx18_get_audio_input(cx, vin->index, vin); 409 } 410 411 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 412 { 413 struct cx18 *cx = fh2id(fh)->cx; 414 415 if (vout->index >= cx->nof_audio_inputs) 416 return -EINVAL; 417 cx->audio_input = vout->index; 418 cx18_audio_set_io(cx); 419 return 0; 420 } 421 422 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 423 { 424 struct cx18 *cx = fh2id(fh)->cx; 425 426 /* set it to defaults from our table */ 427 return cx18_get_input(cx, vin->index, vin); 428 } 429 430 static int cx18_g_pixelaspect(struct file *file, void *fh, 431 int type, struct v4l2_fract *f) 432 { 433 struct cx18 *cx = fh2id(fh)->cx; 434 435 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 436 return -EINVAL; 437 438 f->numerator = cx->is_50hz ? 54 : 11; 439 f->denominator = cx->is_50hz ? 59 : 10; 440 return 0; 441 } 442 443 static int cx18_g_selection(struct file *file, void *fh, 444 struct v4l2_selection *sel) 445 { 446 struct cx18 *cx = fh2id(fh)->cx; 447 448 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 449 return -EINVAL; 450 switch (sel->target) { 451 case V4L2_SEL_TGT_CROP_BOUNDS: 452 case V4L2_SEL_TGT_CROP_DEFAULT: 453 sel->r.top = sel->r.left = 0; 454 sel->r.width = 720; 455 sel->r.height = cx->is_50hz ? 576 : 480; 456 break; 457 default: 458 return -EINVAL; 459 } 460 return 0; 461 } 462 463 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 464 struct v4l2_fmtdesc *fmt) 465 { 466 static const struct v4l2_fmtdesc formats[] = { 467 { 468 .index = 0, 469 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 470 .description = "HM12 (YUV 4:1:1)", 471 .pixelformat = V4L2_PIX_FMT_NV12_16L16, 472 }, 473 { 474 .index = 1, 475 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 476 .flags = V4L2_FMT_FLAG_COMPRESSED, 477 .description = "MPEG", 478 .pixelformat = V4L2_PIX_FMT_MPEG, 479 }, 480 { 481 .index = 2, 482 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 483 .description = "UYVY 4:2:2", 484 .pixelformat = V4L2_PIX_FMT_UYVY, 485 }, 486 }; 487 488 if (fmt->index > ARRAY_SIZE(formats) - 1) 489 return -EINVAL; 490 *fmt = formats[fmt->index]; 491 return 0; 492 } 493 494 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 495 { 496 struct cx18 *cx = fh2id(fh)->cx; 497 498 *i = cx->active_input; 499 return 0; 500 } 501 502 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 503 { 504 struct cx18_open_id *id = fh2id(fh); 505 struct cx18 *cx = id->cx; 506 v4l2_std_id std = V4L2_STD_ALL; 507 const struct cx18_card_video_input *card_input = 508 cx->card->video_inputs + inp; 509 510 if (inp >= cx->nof_inputs) 511 return -EINVAL; 512 513 if (inp == cx->active_input) { 514 CX18_DEBUG_INFO("Input unchanged\n"); 515 return 0; 516 } 517 518 CX18_DEBUG_INFO("Changing input from %d to %d\n", 519 cx->active_input, inp); 520 521 cx->active_input = inp; 522 /* Set the audio input to whatever is appropriate for the input type. */ 523 cx->audio_input = cx->card->video_inputs[inp].audio_index; 524 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 525 std = cx->tuner_std; 526 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 527 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 528 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 529 530 /* prevent others from messing with the streams until 531 we're finished changing inputs. */ 532 cx18_mute(cx); 533 cx18_video_set_io(cx); 534 cx18_audio_set_io(cx); 535 cx18_unmute(cx); 536 return 0; 537 } 538 539 static int cx18_g_frequency(struct file *file, void *fh, 540 struct v4l2_frequency *vf) 541 { 542 struct cx18 *cx = fh2id(fh)->cx; 543 544 if (vf->tuner != 0) 545 return -EINVAL; 546 547 cx18_call_all(cx, tuner, g_frequency, vf); 548 return 0; 549 } 550 551 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 552 { 553 struct cx18_open_id *id = fh2id(fh); 554 struct cx18 *cx = id->cx; 555 556 if (vf->tuner != 0) 557 return -EINVAL; 558 559 cx18_mute(cx); 560 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 561 cx18_call_all(cx, tuner, s_frequency, vf); 562 cx18_unmute(cx); 563 return 0; 564 } 565 566 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 567 { 568 struct cx18 *cx = fh2id(fh)->cx; 569 570 *std = cx->std; 571 return 0; 572 } 573 574 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 575 { 576 struct cx18_open_id *id = fh2id(fh); 577 struct cx18 *cx = id->cx; 578 579 if ((std & V4L2_STD_ALL) == 0) 580 return -EINVAL; 581 582 if (std == cx->std) 583 return 0; 584 585 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 586 atomic_read(&cx->ana_capturing) > 0) { 587 /* Switching standard would turn off the radio or mess 588 with already running streams, prevent that by 589 returning EBUSY. */ 590 return -EBUSY; 591 } 592 593 cx->std = std; 594 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 595 cx->is_50hz = !cx->is_60hz; 596 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 597 cx->cxhdl.width = 720; 598 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 599 cx->vbi.count = cx->is_50hz ? 18 : 12; 600 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 601 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 602 CX18_DEBUG_INFO("Switching standard to %llx.\n", 603 (unsigned long long) cx->std); 604 605 /* Tuner */ 606 cx18_call_all(cx, video, s_std, cx->std); 607 return 0; 608 } 609 610 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 611 { 612 struct cx18_open_id *id = fh2id(fh); 613 struct cx18 *cx = id->cx; 614 615 if (vt->index != 0) 616 return -EINVAL; 617 618 cx18_call_all(cx, tuner, s_tuner, vt); 619 return 0; 620 } 621 622 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 623 { 624 struct cx18 *cx = fh2id(fh)->cx; 625 626 if (vt->index != 0) 627 return -EINVAL; 628 629 cx18_call_all(cx, tuner, g_tuner, vt); 630 631 if (vt->type == V4L2_TUNER_RADIO) 632 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 633 else 634 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 635 return 0; 636 } 637 638 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 639 struct v4l2_sliced_vbi_cap *cap) 640 { 641 struct cx18 *cx = fh2id(fh)->cx; 642 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 643 int f, l; 644 645 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 646 return -EINVAL; 647 648 cap->service_set = 0; 649 for (f = 0; f < 2; f++) { 650 for (l = 0; l < 24; l++) { 651 if (valid_service_line(f, l, cx->is_50hz)) { 652 /* 653 * We can find all v4l2 supported vbi services 654 * for the standard, on a valid line for the std 655 */ 656 cap->service_lines[f][l] = set; 657 cap->service_set |= set; 658 } else 659 cap->service_lines[f][l] = 0; 660 } 661 } 662 for (f = 0; f < 3; f++) 663 cap->reserved[f] = 0; 664 return 0; 665 } 666 667 static int _cx18_process_idx_data(struct cx18_buffer *buf, 668 struct v4l2_enc_idx *idx) 669 { 670 int consumed, remaining; 671 struct v4l2_enc_idx_entry *e_idx; 672 struct cx18_enc_idx_entry *e_buf; 673 674 /* Frame type lookup: 1=I, 2=P, 4=B */ 675 static const int mapping[8] = { 676 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 677 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 678 }; 679 680 /* 681 * Assumption here is that a buf holds an integral number of 682 * struct cx18_enc_idx_entry objects and is properly aligned. 683 * This is enforced by the module options on IDX buffer sizes. 684 */ 685 remaining = buf->bytesused - buf->readpos; 686 consumed = 0; 687 e_idx = &idx->entry[idx->entries]; 688 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 689 690 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 691 idx->entries < V4L2_ENC_IDX_ENTRIES) { 692 693 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 694 | le32_to_cpu(e_buf->offset_low); 695 696 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 697 | le32_to_cpu(e_buf->pts_low); 698 699 e_idx->length = le32_to_cpu(e_buf->length); 700 701 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 702 703 e_idx->reserved[0] = 0; 704 e_idx->reserved[1] = 0; 705 706 idx->entries++; 707 e_idx = &idx->entry[idx->entries]; 708 e_buf++; 709 710 remaining -= sizeof(struct cx18_enc_idx_entry); 711 consumed += sizeof(struct cx18_enc_idx_entry); 712 } 713 714 /* Swallow any partial entries at the end, if there are any */ 715 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 716 consumed += remaining; 717 718 buf->readpos += consumed; 719 return consumed; 720 } 721 722 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 723 struct v4l2_enc_idx *idx) 724 { 725 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 726 return -EINVAL; 727 728 if (mdl->curr_buf == NULL) 729 mdl->curr_buf = list_first_entry(&mdl->buf_list, 730 struct cx18_buffer, list); 731 732 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 733 /* 734 * For some reason we've exhausted the buffers, but the MDL 735 * object still said some data was unread. 736 * Fix that and bail out. 737 */ 738 mdl->readpos = mdl->bytesused; 739 return 0; 740 } 741 742 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 743 744 /* Skip any empty buffers in the MDL */ 745 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 746 continue; 747 748 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 749 750 /* exit when MDL drained or request satisfied */ 751 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 752 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 753 mdl->readpos >= mdl->bytesused) 754 break; 755 } 756 return 0; 757 } 758 759 static int cx18_g_enc_index(struct file *file, void *fh, 760 struct v4l2_enc_idx *idx) 761 { 762 struct cx18 *cx = fh2id(fh)->cx; 763 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 764 s32 tmp; 765 struct cx18_mdl *mdl; 766 767 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 768 return -EINVAL; 769 770 /* Compute the best case number of entries we can buffer */ 771 tmp = s->buffers - 772 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 773 if (tmp <= 0) 774 tmp = 1; 775 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 776 777 /* Fill out the header of the return structure */ 778 idx->entries = 0; 779 idx->entries_cap = tmp; 780 memset(idx->reserved, 0, sizeof(idx->reserved)); 781 782 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 783 do { 784 mdl = cx18_dequeue(s, &s->q_full); 785 if (mdl == NULL) /* No more IDX data right now */ 786 break; 787 788 /* Extract the Index entry data from the MDL and buffers */ 789 cx18_process_idx_data(s, mdl, idx); 790 if (mdl->readpos < mdl->bytesused) { 791 /* We finished with data remaining, push the MDL back */ 792 cx18_push(s, mdl, &s->q_full); 793 break; 794 } 795 796 /* We drained this MDL, schedule it to go to the firmware */ 797 cx18_enqueue(s, mdl, &s->q_free); 798 799 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 800 801 /* Tell the work handler to send free IDX MDLs to the firmware */ 802 cx18_stream_load_fw_queue(s); 803 return 0; 804 } 805 806 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 807 { 808 struct videobuf_queue *q = NULL; 809 struct cx18 *cx = id->cx; 810 struct cx18_stream *s = &cx->streams[id->type]; 811 812 switch (s->vb_type) { 813 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 814 q = &s->vbuf_q; 815 break; 816 case V4L2_BUF_TYPE_VBI_CAPTURE: 817 break; 818 default: 819 break; 820 } 821 return q; 822 } 823 824 static int cx18_streamon(struct file *file, void *priv, 825 enum v4l2_buf_type type) 826 { 827 struct cx18_open_id *id = file->private_data; 828 struct cx18 *cx = id->cx; 829 struct cx18_stream *s = &cx->streams[id->type]; 830 831 /* Start the hardware only if we're the video device */ 832 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 833 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 834 return -EINVAL; 835 836 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 837 return -EINVAL; 838 839 /* Establish a buffer timeout */ 840 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 841 842 return videobuf_streamon(cx18_vb_queue(id)); 843 } 844 845 static int cx18_streamoff(struct file *file, void *priv, 846 enum v4l2_buf_type type) 847 { 848 struct cx18_open_id *id = file->private_data; 849 struct cx18 *cx = id->cx; 850 struct cx18_stream *s = &cx->streams[id->type]; 851 852 /* Start the hardware only if we're the video device */ 853 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 854 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 855 return -EINVAL; 856 857 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 858 return -EINVAL; 859 860 return videobuf_streamoff(cx18_vb_queue(id)); 861 } 862 863 static int cx18_reqbufs(struct file *file, void *priv, 864 struct v4l2_requestbuffers *rb) 865 { 866 struct cx18_open_id *id = file->private_data; 867 struct cx18 *cx = id->cx; 868 struct cx18_stream *s = &cx->streams[id->type]; 869 870 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 871 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 872 return -EINVAL; 873 874 return videobuf_reqbufs(cx18_vb_queue(id), rb); 875 } 876 877 static int cx18_querybuf(struct file *file, void *priv, 878 struct v4l2_buffer *b) 879 { 880 struct cx18_open_id *id = file->private_data; 881 struct cx18 *cx = id->cx; 882 struct cx18_stream *s = &cx->streams[id->type]; 883 884 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 885 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 886 return -EINVAL; 887 888 return videobuf_querybuf(cx18_vb_queue(id), b); 889 } 890 891 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 892 { 893 struct cx18_open_id *id = file->private_data; 894 struct cx18 *cx = id->cx; 895 struct cx18_stream *s = &cx->streams[id->type]; 896 897 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 898 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 899 return -EINVAL; 900 901 return videobuf_qbuf(cx18_vb_queue(id), b); 902 } 903 904 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 905 { 906 struct cx18_open_id *id = file->private_data; 907 struct cx18 *cx = id->cx; 908 struct cx18_stream *s = &cx->streams[id->type]; 909 910 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 911 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 912 return -EINVAL; 913 914 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 915 } 916 917 static int cx18_encoder_cmd(struct file *file, void *fh, 918 struct v4l2_encoder_cmd *enc) 919 { 920 struct cx18_open_id *id = fh2id(fh); 921 struct cx18 *cx = id->cx; 922 u32 h; 923 924 switch (enc->cmd) { 925 case V4L2_ENC_CMD_START: 926 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 927 enc->flags = 0; 928 return cx18_start_capture(id); 929 930 case V4L2_ENC_CMD_STOP: 931 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 932 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 933 cx18_stop_capture(id, 934 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 935 break; 936 937 case V4L2_ENC_CMD_PAUSE: 938 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 939 enc->flags = 0; 940 if (!atomic_read(&cx->ana_capturing)) 941 return -EPERM; 942 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 943 return 0; 944 h = cx18_find_handle(cx); 945 if (h == CX18_INVALID_TASK_HANDLE) { 946 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n"); 947 return -EBADFD; 948 } 949 cx18_mute(cx); 950 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 951 break; 952 953 case V4L2_ENC_CMD_RESUME: 954 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 955 enc->flags = 0; 956 if (!atomic_read(&cx->ana_capturing)) 957 return -EPERM; 958 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 959 return 0; 960 h = cx18_find_handle(cx); 961 if (h == CX18_INVALID_TASK_HANDLE) { 962 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n"); 963 return -EBADFD; 964 } 965 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 966 cx18_unmute(cx); 967 break; 968 969 default: 970 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 971 return -EINVAL; 972 } 973 return 0; 974 } 975 976 static int cx18_try_encoder_cmd(struct file *file, void *fh, 977 struct v4l2_encoder_cmd *enc) 978 { 979 struct cx18 *cx = fh2id(fh)->cx; 980 981 switch (enc->cmd) { 982 case V4L2_ENC_CMD_START: 983 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 984 enc->flags = 0; 985 break; 986 987 case V4L2_ENC_CMD_STOP: 988 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 989 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 990 break; 991 992 case V4L2_ENC_CMD_PAUSE: 993 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 994 enc->flags = 0; 995 break; 996 997 case V4L2_ENC_CMD_RESUME: 998 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 999 enc->flags = 0; 1000 break; 1001 1002 default: 1003 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 1004 return -EINVAL; 1005 } 1006 return 0; 1007 } 1008 1009 static int cx18_log_status(struct file *file, void *fh) 1010 { 1011 struct cx18 *cx = fh2id(fh)->cx; 1012 struct v4l2_input vidin; 1013 struct v4l2_audio audin; 1014 int i; 1015 1016 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1017 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1018 struct tveeprom tv; 1019 1020 cx18_read_eeprom(cx, &tv); 1021 } 1022 cx18_call_all(cx, core, log_status); 1023 cx18_get_input(cx, cx->active_input, &vidin); 1024 cx18_get_audio_input(cx, cx->audio_input, &audin); 1025 CX18_INFO("Video Input: %s\n", vidin.name); 1026 CX18_INFO("Audio Input: %s\n", audin.name); 1027 mutex_lock(&cx->gpio_lock); 1028 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1029 cx->gpio_dir, cx->gpio_val); 1030 mutex_unlock(&cx->gpio_lock); 1031 CX18_INFO("Tuner: %s\n", 1032 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1033 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1034 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1035 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1036 struct cx18_stream *s = &cx->streams[i]; 1037 1038 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1039 continue; 1040 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1041 s->name, s->s_flags, 1042 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1043 / s->buffers, 1044 (s->buffers * s->buf_size) / 1024, s->buffers); 1045 } 1046 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1047 (long long)cx->mpg_data_received, 1048 (long long)cx->vbi_data_inserted); 1049 return 0; 1050 } 1051 1052 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1053 unsigned int cmd, void *arg) 1054 { 1055 struct cx18 *cx = fh2id(fh)->cx; 1056 1057 switch (cmd) { 1058 case VIDIOC_INT_RESET: { 1059 u32 val = *(u32 *)arg; 1060 1061 if ((val == 0) || (val & 0x01)) 1062 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1063 (u32) CX18_GPIO_RESET_Z8F0811); 1064 break; 1065 } 1066 1067 default: 1068 return -ENOTTY; 1069 } 1070 return 0; 1071 } 1072 1073 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1074 .vidioc_querycap = cx18_querycap, 1075 .vidioc_s_audio = cx18_s_audio, 1076 .vidioc_g_audio = cx18_g_audio, 1077 .vidioc_enumaudio = cx18_enumaudio, 1078 .vidioc_enum_input = cx18_enum_input, 1079 .vidioc_g_pixelaspect = cx18_g_pixelaspect, 1080 .vidioc_g_selection = cx18_g_selection, 1081 .vidioc_g_input = cx18_g_input, 1082 .vidioc_s_input = cx18_s_input, 1083 .vidioc_g_frequency = cx18_g_frequency, 1084 .vidioc_s_frequency = cx18_s_frequency, 1085 .vidioc_s_tuner = cx18_s_tuner, 1086 .vidioc_g_tuner = cx18_g_tuner, 1087 .vidioc_g_enc_index = cx18_g_enc_index, 1088 .vidioc_g_std = cx18_g_std, 1089 .vidioc_s_std = cx18_s_std, 1090 .vidioc_log_status = cx18_log_status, 1091 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1092 .vidioc_encoder_cmd = cx18_encoder_cmd, 1093 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1094 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1095 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1096 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1097 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1098 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1099 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1100 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1101 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1102 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1103 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1104 #ifdef CONFIG_VIDEO_ADV_DEBUG 1105 .vidioc_g_register = cx18_g_register, 1106 .vidioc_s_register = cx18_s_register, 1107 #endif 1108 .vidioc_default = cx18_default, 1109 .vidioc_streamon = cx18_streamon, 1110 .vidioc_streamoff = cx18_streamoff, 1111 .vidioc_reqbufs = cx18_reqbufs, 1112 .vidioc_querybuf = cx18_querybuf, 1113 .vidioc_qbuf = cx18_qbuf, 1114 .vidioc_dqbuf = cx18_dqbuf, 1115 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1116 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1117 }; 1118 1119 void cx18_set_funcs(struct video_device *vdev) 1120 { 1121 vdev->ioctl_ops = &cx18_ioctl_ops; 1122 } 1123