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_HM12) { 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 snprintf(vcap->bus_info, sizeof(vcap->bus_info), 393 "PCI:%s", pci_name(cx->pci_dev)); 394 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS; 395 return 0; 396 } 397 398 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 399 { 400 struct cx18 *cx = fh2id(fh)->cx; 401 402 return cx18_get_audio_input(cx, vin->index, vin); 403 } 404 405 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 406 { 407 struct cx18 *cx = fh2id(fh)->cx; 408 409 vin->index = cx->audio_input; 410 return cx18_get_audio_input(cx, vin->index, vin); 411 } 412 413 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 414 { 415 struct cx18 *cx = fh2id(fh)->cx; 416 417 if (vout->index >= cx->nof_audio_inputs) 418 return -EINVAL; 419 cx->audio_input = vout->index; 420 cx18_audio_set_io(cx); 421 return 0; 422 } 423 424 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 425 { 426 struct cx18 *cx = fh2id(fh)->cx; 427 428 /* set it to defaults from our table */ 429 return cx18_get_input(cx, vin->index, vin); 430 } 431 432 static int cx18_g_pixelaspect(struct file *file, void *fh, 433 int type, struct v4l2_fract *f) 434 { 435 struct cx18 *cx = fh2id(fh)->cx; 436 437 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 438 return -EINVAL; 439 440 f->numerator = cx->is_50hz ? 54 : 11; 441 f->denominator = cx->is_50hz ? 59 : 10; 442 return 0; 443 } 444 445 static int cx18_g_selection(struct file *file, void *fh, 446 struct v4l2_selection *sel) 447 { 448 struct cx18 *cx = fh2id(fh)->cx; 449 450 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 451 return -EINVAL; 452 switch (sel->target) { 453 case V4L2_SEL_TGT_CROP_BOUNDS: 454 case V4L2_SEL_TGT_CROP_DEFAULT: 455 sel->r.top = sel->r.left = 0; 456 sel->r.width = 720; 457 sel->r.height = cx->is_50hz ? 576 : 480; 458 break; 459 default: 460 return -EINVAL; 461 } 462 return 0; 463 } 464 465 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 466 struct v4l2_fmtdesc *fmt) 467 { 468 static const struct v4l2_fmtdesc formats[] = { 469 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 470 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } 471 }, 472 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, 473 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } 474 }, 475 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 476 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } 477 }, 478 }; 479 480 if (fmt->index > ARRAY_SIZE(formats) - 1) 481 return -EINVAL; 482 *fmt = formats[fmt->index]; 483 return 0; 484 } 485 486 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 487 { 488 struct cx18 *cx = fh2id(fh)->cx; 489 490 *i = cx->active_input; 491 return 0; 492 } 493 494 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 495 { 496 struct cx18_open_id *id = fh2id(fh); 497 struct cx18 *cx = id->cx; 498 v4l2_std_id std = V4L2_STD_ALL; 499 const struct cx18_card_video_input *card_input = 500 cx->card->video_inputs + inp; 501 502 if (inp >= cx->nof_inputs) 503 return -EINVAL; 504 505 if (inp == cx->active_input) { 506 CX18_DEBUG_INFO("Input unchanged\n"); 507 return 0; 508 } 509 510 CX18_DEBUG_INFO("Changing input from %d to %d\n", 511 cx->active_input, inp); 512 513 cx->active_input = inp; 514 /* Set the audio input to whatever is appropriate for the input type. */ 515 cx->audio_input = cx->card->video_inputs[inp].audio_index; 516 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 517 std = cx->tuner_std; 518 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 519 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 520 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 521 522 /* prevent others from messing with the streams until 523 we're finished changing inputs. */ 524 cx18_mute(cx); 525 cx18_video_set_io(cx); 526 cx18_audio_set_io(cx); 527 cx18_unmute(cx); 528 return 0; 529 } 530 531 static int cx18_g_frequency(struct file *file, void *fh, 532 struct v4l2_frequency *vf) 533 { 534 struct cx18 *cx = fh2id(fh)->cx; 535 536 if (vf->tuner != 0) 537 return -EINVAL; 538 539 cx18_call_all(cx, tuner, g_frequency, vf); 540 return 0; 541 } 542 543 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 544 { 545 struct cx18_open_id *id = fh2id(fh); 546 struct cx18 *cx = id->cx; 547 548 if (vf->tuner != 0) 549 return -EINVAL; 550 551 cx18_mute(cx); 552 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 553 cx18_call_all(cx, tuner, s_frequency, vf); 554 cx18_unmute(cx); 555 return 0; 556 } 557 558 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 559 { 560 struct cx18 *cx = fh2id(fh)->cx; 561 562 *std = cx->std; 563 return 0; 564 } 565 566 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 567 { 568 struct cx18_open_id *id = fh2id(fh); 569 struct cx18 *cx = id->cx; 570 571 if ((std & V4L2_STD_ALL) == 0) 572 return -EINVAL; 573 574 if (std == cx->std) 575 return 0; 576 577 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 578 atomic_read(&cx->ana_capturing) > 0) { 579 /* Switching standard would turn off the radio or mess 580 with already running streams, prevent that by 581 returning EBUSY. */ 582 return -EBUSY; 583 } 584 585 cx->std = std; 586 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 587 cx->is_50hz = !cx->is_60hz; 588 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 589 cx->cxhdl.width = 720; 590 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 591 cx->vbi.count = cx->is_50hz ? 18 : 12; 592 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 593 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 594 CX18_DEBUG_INFO("Switching standard to %llx.\n", 595 (unsigned long long) cx->std); 596 597 /* Tuner */ 598 cx18_call_all(cx, video, s_std, cx->std); 599 return 0; 600 } 601 602 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 603 { 604 struct cx18_open_id *id = fh2id(fh); 605 struct cx18 *cx = id->cx; 606 607 if (vt->index != 0) 608 return -EINVAL; 609 610 cx18_call_all(cx, tuner, s_tuner, vt); 611 return 0; 612 } 613 614 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 615 { 616 struct cx18 *cx = fh2id(fh)->cx; 617 618 if (vt->index != 0) 619 return -EINVAL; 620 621 cx18_call_all(cx, tuner, g_tuner, vt); 622 623 if (vt->type == V4L2_TUNER_RADIO) 624 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 625 else 626 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 627 return 0; 628 } 629 630 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 631 struct v4l2_sliced_vbi_cap *cap) 632 { 633 struct cx18 *cx = fh2id(fh)->cx; 634 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 635 int f, l; 636 637 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 638 return -EINVAL; 639 640 cap->service_set = 0; 641 for (f = 0; f < 2; f++) { 642 for (l = 0; l < 24; l++) { 643 if (valid_service_line(f, l, cx->is_50hz)) { 644 /* 645 * We can find all v4l2 supported vbi services 646 * for the standard, on a valid line for the std 647 */ 648 cap->service_lines[f][l] = set; 649 cap->service_set |= set; 650 } else 651 cap->service_lines[f][l] = 0; 652 } 653 } 654 for (f = 0; f < 3; f++) 655 cap->reserved[f] = 0; 656 return 0; 657 } 658 659 static int _cx18_process_idx_data(struct cx18_buffer *buf, 660 struct v4l2_enc_idx *idx) 661 { 662 int consumed, remaining; 663 struct v4l2_enc_idx_entry *e_idx; 664 struct cx18_enc_idx_entry *e_buf; 665 666 /* Frame type lookup: 1=I, 2=P, 4=B */ 667 static const int mapping[8] = { 668 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 669 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 670 }; 671 672 /* 673 * Assumption here is that a buf holds an integral number of 674 * struct cx18_enc_idx_entry objects and is properly aligned. 675 * This is enforced by the module options on IDX buffer sizes. 676 */ 677 remaining = buf->bytesused - buf->readpos; 678 consumed = 0; 679 e_idx = &idx->entry[idx->entries]; 680 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 681 682 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 683 idx->entries < V4L2_ENC_IDX_ENTRIES) { 684 685 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 686 | le32_to_cpu(e_buf->offset_low); 687 688 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 689 | le32_to_cpu(e_buf->pts_low); 690 691 e_idx->length = le32_to_cpu(e_buf->length); 692 693 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 694 695 e_idx->reserved[0] = 0; 696 e_idx->reserved[1] = 0; 697 698 idx->entries++; 699 e_idx = &idx->entry[idx->entries]; 700 e_buf++; 701 702 remaining -= sizeof(struct cx18_enc_idx_entry); 703 consumed += sizeof(struct cx18_enc_idx_entry); 704 } 705 706 /* Swallow any partial entries at the end, if there are any */ 707 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 708 consumed += remaining; 709 710 buf->readpos += consumed; 711 return consumed; 712 } 713 714 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 715 struct v4l2_enc_idx *idx) 716 { 717 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 718 return -EINVAL; 719 720 if (mdl->curr_buf == NULL) 721 mdl->curr_buf = list_first_entry(&mdl->buf_list, 722 struct cx18_buffer, list); 723 724 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 725 /* 726 * For some reason we've exhausted the buffers, but the MDL 727 * object still said some data was unread. 728 * Fix that and bail out. 729 */ 730 mdl->readpos = mdl->bytesused; 731 return 0; 732 } 733 734 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 735 736 /* Skip any empty buffers in the MDL */ 737 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 738 continue; 739 740 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 741 742 /* exit when MDL drained or request satisfied */ 743 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 744 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 745 mdl->readpos >= mdl->bytesused) 746 break; 747 } 748 return 0; 749 } 750 751 static int cx18_g_enc_index(struct file *file, void *fh, 752 struct v4l2_enc_idx *idx) 753 { 754 struct cx18 *cx = fh2id(fh)->cx; 755 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 756 s32 tmp; 757 struct cx18_mdl *mdl; 758 759 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 760 return -EINVAL; 761 762 /* Compute the best case number of entries we can buffer */ 763 tmp = s->buffers - 764 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 765 if (tmp <= 0) 766 tmp = 1; 767 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 768 769 /* Fill out the header of the return structure */ 770 idx->entries = 0; 771 idx->entries_cap = tmp; 772 memset(idx->reserved, 0, sizeof(idx->reserved)); 773 774 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 775 do { 776 mdl = cx18_dequeue(s, &s->q_full); 777 if (mdl == NULL) /* No more IDX data right now */ 778 break; 779 780 /* Extract the Index entry data from the MDL and buffers */ 781 cx18_process_idx_data(s, mdl, idx); 782 if (mdl->readpos < mdl->bytesused) { 783 /* We finished with data remaining, push the MDL back */ 784 cx18_push(s, mdl, &s->q_full); 785 break; 786 } 787 788 /* We drained this MDL, schedule it to go to the firmware */ 789 cx18_enqueue(s, mdl, &s->q_free); 790 791 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 792 793 /* Tell the work handler to send free IDX MDLs to the firmware */ 794 cx18_stream_load_fw_queue(s); 795 return 0; 796 } 797 798 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 799 { 800 struct videobuf_queue *q = NULL; 801 struct cx18 *cx = id->cx; 802 struct cx18_stream *s = &cx->streams[id->type]; 803 804 switch (s->vb_type) { 805 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 806 q = &s->vbuf_q; 807 break; 808 case V4L2_BUF_TYPE_VBI_CAPTURE: 809 break; 810 default: 811 break; 812 } 813 return q; 814 } 815 816 static int cx18_streamon(struct file *file, void *priv, 817 enum v4l2_buf_type type) 818 { 819 struct cx18_open_id *id = file->private_data; 820 struct cx18 *cx = id->cx; 821 struct cx18_stream *s = &cx->streams[id->type]; 822 823 /* Start the hardware only if we're the video device */ 824 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 825 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 826 return -EINVAL; 827 828 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 829 return -EINVAL; 830 831 /* Establish a buffer timeout */ 832 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 833 834 return videobuf_streamon(cx18_vb_queue(id)); 835 } 836 837 static int cx18_streamoff(struct file *file, void *priv, 838 enum v4l2_buf_type type) 839 { 840 struct cx18_open_id *id = file->private_data; 841 struct cx18 *cx = id->cx; 842 struct cx18_stream *s = &cx->streams[id->type]; 843 844 /* Start the hardware only if we're the video device */ 845 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 846 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 847 return -EINVAL; 848 849 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 850 return -EINVAL; 851 852 return videobuf_streamoff(cx18_vb_queue(id)); 853 } 854 855 static int cx18_reqbufs(struct file *file, void *priv, 856 struct v4l2_requestbuffers *rb) 857 { 858 struct cx18_open_id *id = file->private_data; 859 struct cx18 *cx = id->cx; 860 struct cx18_stream *s = &cx->streams[id->type]; 861 862 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 863 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 864 return -EINVAL; 865 866 return videobuf_reqbufs(cx18_vb_queue(id), rb); 867 } 868 869 static int cx18_querybuf(struct file *file, void *priv, 870 struct v4l2_buffer *b) 871 { 872 struct cx18_open_id *id = file->private_data; 873 struct cx18 *cx = id->cx; 874 struct cx18_stream *s = &cx->streams[id->type]; 875 876 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 877 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 878 return -EINVAL; 879 880 return videobuf_querybuf(cx18_vb_queue(id), b); 881 } 882 883 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 884 { 885 struct cx18_open_id *id = file->private_data; 886 struct cx18 *cx = id->cx; 887 struct cx18_stream *s = &cx->streams[id->type]; 888 889 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 890 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 891 return -EINVAL; 892 893 return videobuf_qbuf(cx18_vb_queue(id), b); 894 } 895 896 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 897 { 898 struct cx18_open_id *id = file->private_data; 899 struct cx18 *cx = id->cx; 900 struct cx18_stream *s = &cx->streams[id->type]; 901 902 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 903 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 904 return -EINVAL; 905 906 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 907 } 908 909 static int cx18_encoder_cmd(struct file *file, void *fh, 910 struct v4l2_encoder_cmd *enc) 911 { 912 struct cx18_open_id *id = fh2id(fh); 913 struct cx18 *cx = id->cx; 914 u32 h; 915 916 switch (enc->cmd) { 917 case V4L2_ENC_CMD_START: 918 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 919 enc->flags = 0; 920 return cx18_start_capture(id); 921 922 case V4L2_ENC_CMD_STOP: 923 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 924 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 925 cx18_stop_capture(id, 926 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 927 break; 928 929 case V4L2_ENC_CMD_PAUSE: 930 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 931 enc->flags = 0; 932 if (!atomic_read(&cx->ana_capturing)) 933 return -EPERM; 934 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 935 return 0; 936 h = cx18_find_handle(cx); 937 if (h == CX18_INVALID_TASK_HANDLE) { 938 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n"); 939 return -EBADFD; 940 } 941 cx18_mute(cx); 942 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 943 break; 944 945 case V4L2_ENC_CMD_RESUME: 946 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 947 enc->flags = 0; 948 if (!atomic_read(&cx->ana_capturing)) 949 return -EPERM; 950 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 951 return 0; 952 h = cx18_find_handle(cx); 953 if (h == CX18_INVALID_TASK_HANDLE) { 954 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n"); 955 return -EBADFD; 956 } 957 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 958 cx18_unmute(cx); 959 break; 960 961 default: 962 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 963 return -EINVAL; 964 } 965 return 0; 966 } 967 968 static int cx18_try_encoder_cmd(struct file *file, void *fh, 969 struct v4l2_encoder_cmd *enc) 970 { 971 struct cx18 *cx = fh2id(fh)->cx; 972 973 switch (enc->cmd) { 974 case V4L2_ENC_CMD_START: 975 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 976 enc->flags = 0; 977 break; 978 979 case V4L2_ENC_CMD_STOP: 980 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 981 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 982 break; 983 984 case V4L2_ENC_CMD_PAUSE: 985 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 986 enc->flags = 0; 987 break; 988 989 case V4L2_ENC_CMD_RESUME: 990 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 991 enc->flags = 0; 992 break; 993 994 default: 995 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 996 return -EINVAL; 997 } 998 return 0; 999 } 1000 1001 static int cx18_log_status(struct file *file, void *fh) 1002 { 1003 struct cx18 *cx = fh2id(fh)->cx; 1004 struct v4l2_input vidin; 1005 struct v4l2_audio audin; 1006 int i; 1007 1008 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1009 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1010 struct tveeprom tv; 1011 1012 cx18_read_eeprom(cx, &tv); 1013 } 1014 cx18_call_all(cx, core, log_status); 1015 cx18_get_input(cx, cx->active_input, &vidin); 1016 cx18_get_audio_input(cx, cx->audio_input, &audin); 1017 CX18_INFO("Video Input: %s\n", vidin.name); 1018 CX18_INFO("Audio Input: %s\n", audin.name); 1019 mutex_lock(&cx->gpio_lock); 1020 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1021 cx->gpio_dir, cx->gpio_val); 1022 mutex_unlock(&cx->gpio_lock); 1023 CX18_INFO("Tuner: %s\n", 1024 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1025 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1026 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1027 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1028 struct cx18_stream *s = &cx->streams[i]; 1029 1030 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1031 continue; 1032 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1033 s->name, s->s_flags, 1034 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1035 / s->buffers, 1036 (s->buffers * s->buf_size) / 1024, s->buffers); 1037 } 1038 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1039 (long long)cx->mpg_data_received, 1040 (long long)cx->vbi_data_inserted); 1041 return 0; 1042 } 1043 1044 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1045 unsigned int cmd, void *arg) 1046 { 1047 struct cx18 *cx = fh2id(fh)->cx; 1048 1049 switch (cmd) { 1050 case VIDIOC_INT_RESET: { 1051 u32 val = *(u32 *)arg; 1052 1053 if ((val == 0) || (val & 0x01)) 1054 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1055 (u32) CX18_GPIO_RESET_Z8F0811); 1056 break; 1057 } 1058 1059 default: 1060 return -ENOTTY; 1061 } 1062 return 0; 1063 } 1064 1065 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1066 .vidioc_querycap = cx18_querycap, 1067 .vidioc_s_audio = cx18_s_audio, 1068 .vidioc_g_audio = cx18_g_audio, 1069 .vidioc_enumaudio = cx18_enumaudio, 1070 .vidioc_enum_input = cx18_enum_input, 1071 .vidioc_g_pixelaspect = cx18_g_pixelaspect, 1072 .vidioc_g_selection = cx18_g_selection, 1073 .vidioc_g_input = cx18_g_input, 1074 .vidioc_s_input = cx18_s_input, 1075 .vidioc_g_frequency = cx18_g_frequency, 1076 .vidioc_s_frequency = cx18_s_frequency, 1077 .vidioc_s_tuner = cx18_s_tuner, 1078 .vidioc_g_tuner = cx18_g_tuner, 1079 .vidioc_g_enc_index = cx18_g_enc_index, 1080 .vidioc_g_std = cx18_g_std, 1081 .vidioc_s_std = cx18_s_std, 1082 .vidioc_log_status = cx18_log_status, 1083 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1084 .vidioc_encoder_cmd = cx18_encoder_cmd, 1085 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1086 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1087 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1088 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1089 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1090 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1091 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1092 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1093 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1094 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1095 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1096 #ifdef CONFIG_VIDEO_ADV_DEBUG 1097 .vidioc_g_register = cx18_g_register, 1098 .vidioc_s_register = cx18_s_register, 1099 #endif 1100 .vidioc_default = cx18_default, 1101 .vidioc_streamon = cx18_streamon, 1102 .vidioc_streamoff = cx18_streamoff, 1103 .vidioc_reqbufs = cx18_reqbufs, 1104 .vidioc_querybuf = cx18_querybuf, 1105 .vidioc_qbuf = cx18_qbuf, 1106 .vidioc_dqbuf = cx18_dqbuf, 1107 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1108 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1109 }; 1110 1111 void cx18_set_funcs(struct video_device *vdev) 1112 { 1113 vdev->ioctl_ops = &cx18_ioctl_ops; 1114 } 1115