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 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 { 470 .index = 0, 471 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 472 .description = "HM12 (YUV 4:1:1)", 473 .pixelformat = V4L2_PIX_FMT_NV12_16L16, 474 }, 475 { 476 .index = 1, 477 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 478 .flags = V4L2_FMT_FLAG_COMPRESSED, 479 .description = "MPEG", 480 .pixelformat = V4L2_PIX_FMT_MPEG, 481 }, 482 { 483 .index = 2, 484 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, 485 .description = "UYVY 4:2:2", 486 .pixelformat = V4L2_PIX_FMT_UYVY, 487 }, 488 }; 489 490 if (fmt->index > ARRAY_SIZE(formats) - 1) 491 return -EINVAL; 492 *fmt = formats[fmt->index]; 493 return 0; 494 } 495 496 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 497 { 498 struct cx18 *cx = fh2id(fh)->cx; 499 500 *i = cx->active_input; 501 return 0; 502 } 503 504 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 505 { 506 struct cx18_open_id *id = fh2id(fh); 507 struct cx18 *cx = id->cx; 508 v4l2_std_id std = V4L2_STD_ALL; 509 const struct cx18_card_video_input *card_input = 510 cx->card->video_inputs + inp; 511 512 if (inp >= cx->nof_inputs) 513 return -EINVAL; 514 515 if (inp == cx->active_input) { 516 CX18_DEBUG_INFO("Input unchanged\n"); 517 return 0; 518 } 519 520 CX18_DEBUG_INFO("Changing input from %d to %d\n", 521 cx->active_input, inp); 522 523 cx->active_input = inp; 524 /* Set the audio input to whatever is appropriate for the input type. */ 525 cx->audio_input = cx->card->video_inputs[inp].audio_index; 526 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 527 std = cx->tuner_std; 528 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 529 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 530 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 531 532 /* prevent others from messing with the streams until 533 we're finished changing inputs. */ 534 cx18_mute(cx); 535 cx18_video_set_io(cx); 536 cx18_audio_set_io(cx); 537 cx18_unmute(cx); 538 return 0; 539 } 540 541 static int cx18_g_frequency(struct file *file, void *fh, 542 struct v4l2_frequency *vf) 543 { 544 struct cx18 *cx = fh2id(fh)->cx; 545 546 if (vf->tuner != 0) 547 return -EINVAL; 548 549 cx18_call_all(cx, tuner, g_frequency, vf); 550 return 0; 551 } 552 553 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 554 { 555 struct cx18_open_id *id = fh2id(fh); 556 struct cx18 *cx = id->cx; 557 558 if (vf->tuner != 0) 559 return -EINVAL; 560 561 cx18_mute(cx); 562 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 563 cx18_call_all(cx, tuner, s_frequency, vf); 564 cx18_unmute(cx); 565 return 0; 566 } 567 568 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 569 { 570 struct cx18 *cx = fh2id(fh)->cx; 571 572 *std = cx->std; 573 return 0; 574 } 575 576 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 577 { 578 struct cx18_open_id *id = fh2id(fh); 579 struct cx18 *cx = id->cx; 580 581 if ((std & V4L2_STD_ALL) == 0) 582 return -EINVAL; 583 584 if (std == cx->std) 585 return 0; 586 587 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 588 atomic_read(&cx->ana_capturing) > 0) { 589 /* Switching standard would turn off the radio or mess 590 with already running streams, prevent that by 591 returning EBUSY. */ 592 return -EBUSY; 593 } 594 595 cx->std = std; 596 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 597 cx->is_50hz = !cx->is_60hz; 598 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 599 cx->cxhdl.width = 720; 600 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 601 cx->vbi.count = cx->is_50hz ? 18 : 12; 602 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 603 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 604 CX18_DEBUG_INFO("Switching standard to %llx.\n", 605 (unsigned long long) cx->std); 606 607 /* Tuner */ 608 cx18_call_all(cx, video, s_std, cx->std); 609 return 0; 610 } 611 612 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 613 { 614 struct cx18_open_id *id = fh2id(fh); 615 struct cx18 *cx = id->cx; 616 617 if (vt->index != 0) 618 return -EINVAL; 619 620 cx18_call_all(cx, tuner, s_tuner, vt); 621 return 0; 622 } 623 624 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 625 { 626 struct cx18 *cx = fh2id(fh)->cx; 627 628 if (vt->index != 0) 629 return -EINVAL; 630 631 cx18_call_all(cx, tuner, g_tuner, vt); 632 633 if (vt->type == V4L2_TUNER_RADIO) 634 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 635 else 636 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 637 return 0; 638 } 639 640 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 641 struct v4l2_sliced_vbi_cap *cap) 642 { 643 struct cx18 *cx = fh2id(fh)->cx; 644 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 645 int f, l; 646 647 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 648 return -EINVAL; 649 650 cap->service_set = 0; 651 for (f = 0; f < 2; f++) { 652 for (l = 0; l < 24; l++) { 653 if (valid_service_line(f, l, cx->is_50hz)) { 654 /* 655 * We can find all v4l2 supported vbi services 656 * for the standard, on a valid line for the std 657 */ 658 cap->service_lines[f][l] = set; 659 cap->service_set |= set; 660 } else 661 cap->service_lines[f][l] = 0; 662 } 663 } 664 for (f = 0; f < 3; f++) 665 cap->reserved[f] = 0; 666 return 0; 667 } 668 669 static int _cx18_process_idx_data(struct cx18_buffer *buf, 670 struct v4l2_enc_idx *idx) 671 { 672 int consumed, remaining; 673 struct v4l2_enc_idx_entry *e_idx; 674 struct cx18_enc_idx_entry *e_buf; 675 676 /* Frame type lookup: 1=I, 2=P, 4=B */ 677 static const int mapping[8] = { 678 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 679 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 680 }; 681 682 /* 683 * Assumption here is that a buf holds an integral number of 684 * struct cx18_enc_idx_entry objects and is properly aligned. 685 * This is enforced by the module options on IDX buffer sizes. 686 */ 687 remaining = buf->bytesused - buf->readpos; 688 consumed = 0; 689 e_idx = &idx->entry[idx->entries]; 690 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 691 692 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 693 idx->entries < V4L2_ENC_IDX_ENTRIES) { 694 695 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 696 | le32_to_cpu(e_buf->offset_low); 697 698 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 699 | le32_to_cpu(e_buf->pts_low); 700 701 e_idx->length = le32_to_cpu(e_buf->length); 702 703 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 704 705 e_idx->reserved[0] = 0; 706 e_idx->reserved[1] = 0; 707 708 idx->entries++; 709 e_idx = &idx->entry[idx->entries]; 710 e_buf++; 711 712 remaining -= sizeof(struct cx18_enc_idx_entry); 713 consumed += sizeof(struct cx18_enc_idx_entry); 714 } 715 716 /* Swallow any partial entries at the end, if there are any */ 717 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 718 consumed += remaining; 719 720 buf->readpos += consumed; 721 return consumed; 722 } 723 724 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 725 struct v4l2_enc_idx *idx) 726 { 727 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 728 return -EINVAL; 729 730 if (mdl->curr_buf == NULL) 731 mdl->curr_buf = list_first_entry(&mdl->buf_list, 732 struct cx18_buffer, list); 733 734 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 735 /* 736 * For some reason we've exhausted the buffers, but the MDL 737 * object still said some data was unread. 738 * Fix that and bail out. 739 */ 740 mdl->readpos = mdl->bytesused; 741 return 0; 742 } 743 744 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 745 746 /* Skip any empty buffers in the MDL */ 747 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 748 continue; 749 750 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 751 752 /* exit when MDL drained or request satisfied */ 753 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 754 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 755 mdl->readpos >= mdl->bytesused) 756 break; 757 } 758 return 0; 759 } 760 761 static int cx18_g_enc_index(struct file *file, void *fh, 762 struct v4l2_enc_idx *idx) 763 { 764 struct cx18 *cx = fh2id(fh)->cx; 765 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 766 s32 tmp; 767 struct cx18_mdl *mdl; 768 769 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 770 return -EINVAL; 771 772 /* Compute the best case number of entries we can buffer */ 773 tmp = s->buffers - 774 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 775 if (tmp <= 0) 776 tmp = 1; 777 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 778 779 /* Fill out the header of the return structure */ 780 idx->entries = 0; 781 idx->entries_cap = tmp; 782 memset(idx->reserved, 0, sizeof(idx->reserved)); 783 784 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 785 do { 786 mdl = cx18_dequeue(s, &s->q_full); 787 if (mdl == NULL) /* No more IDX data right now */ 788 break; 789 790 /* Extract the Index entry data from the MDL and buffers */ 791 cx18_process_idx_data(s, mdl, idx); 792 if (mdl->readpos < mdl->bytesused) { 793 /* We finished with data remaining, push the MDL back */ 794 cx18_push(s, mdl, &s->q_full); 795 break; 796 } 797 798 /* We drained this MDL, schedule it to go to the firmware */ 799 cx18_enqueue(s, mdl, &s->q_free); 800 801 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 802 803 /* Tell the work handler to send free IDX MDLs to the firmware */ 804 cx18_stream_load_fw_queue(s); 805 return 0; 806 } 807 808 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 809 { 810 struct videobuf_queue *q = NULL; 811 struct cx18 *cx = id->cx; 812 struct cx18_stream *s = &cx->streams[id->type]; 813 814 switch (s->vb_type) { 815 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 816 q = &s->vbuf_q; 817 break; 818 case V4L2_BUF_TYPE_VBI_CAPTURE: 819 break; 820 default: 821 break; 822 } 823 return q; 824 } 825 826 static int cx18_streamon(struct file *file, void *priv, 827 enum v4l2_buf_type type) 828 { 829 struct cx18_open_id *id = file->private_data; 830 struct cx18 *cx = id->cx; 831 struct cx18_stream *s = &cx->streams[id->type]; 832 833 /* Start the hardware only if we're the video device */ 834 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 835 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 836 return -EINVAL; 837 838 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 839 return -EINVAL; 840 841 /* Establish a buffer timeout */ 842 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 843 844 return videobuf_streamon(cx18_vb_queue(id)); 845 } 846 847 static int cx18_streamoff(struct file *file, void *priv, 848 enum v4l2_buf_type type) 849 { 850 struct cx18_open_id *id = file->private_data; 851 struct cx18 *cx = id->cx; 852 struct cx18_stream *s = &cx->streams[id->type]; 853 854 /* Start the hardware only if we're the video device */ 855 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 856 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 857 return -EINVAL; 858 859 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 860 return -EINVAL; 861 862 return videobuf_streamoff(cx18_vb_queue(id)); 863 } 864 865 static int cx18_reqbufs(struct file *file, void *priv, 866 struct v4l2_requestbuffers *rb) 867 { 868 struct cx18_open_id *id = file->private_data; 869 struct cx18 *cx = id->cx; 870 struct cx18_stream *s = &cx->streams[id->type]; 871 872 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 873 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 874 return -EINVAL; 875 876 return videobuf_reqbufs(cx18_vb_queue(id), rb); 877 } 878 879 static int cx18_querybuf(struct file *file, void *priv, 880 struct v4l2_buffer *b) 881 { 882 struct cx18_open_id *id = file->private_data; 883 struct cx18 *cx = id->cx; 884 struct cx18_stream *s = &cx->streams[id->type]; 885 886 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 887 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 888 return -EINVAL; 889 890 return videobuf_querybuf(cx18_vb_queue(id), b); 891 } 892 893 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 894 { 895 struct cx18_open_id *id = file->private_data; 896 struct cx18 *cx = id->cx; 897 struct cx18_stream *s = &cx->streams[id->type]; 898 899 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 900 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 901 return -EINVAL; 902 903 return videobuf_qbuf(cx18_vb_queue(id), b); 904 } 905 906 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 907 { 908 struct cx18_open_id *id = file->private_data; 909 struct cx18 *cx = id->cx; 910 struct cx18_stream *s = &cx->streams[id->type]; 911 912 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 913 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 914 return -EINVAL; 915 916 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 917 } 918 919 static int cx18_encoder_cmd(struct file *file, void *fh, 920 struct v4l2_encoder_cmd *enc) 921 { 922 struct cx18_open_id *id = fh2id(fh); 923 struct cx18 *cx = id->cx; 924 u32 h; 925 926 switch (enc->cmd) { 927 case V4L2_ENC_CMD_START: 928 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 929 enc->flags = 0; 930 return cx18_start_capture(id); 931 932 case V4L2_ENC_CMD_STOP: 933 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 934 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 935 cx18_stop_capture(id, 936 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 937 break; 938 939 case V4L2_ENC_CMD_PAUSE: 940 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 941 enc->flags = 0; 942 if (!atomic_read(&cx->ana_capturing)) 943 return -EPERM; 944 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 945 return 0; 946 h = cx18_find_handle(cx); 947 if (h == CX18_INVALID_TASK_HANDLE) { 948 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n"); 949 return -EBADFD; 950 } 951 cx18_mute(cx); 952 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 953 break; 954 955 case V4L2_ENC_CMD_RESUME: 956 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 957 enc->flags = 0; 958 if (!atomic_read(&cx->ana_capturing)) 959 return -EPERM; 960 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 961 return 0; 962 h = cx18_find_handle(cx); 963 if (h == CX18_INVALID_TASK_HANDLE) { 964 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n"); 965 return -EBADFD; 966 } 967 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 968 cx18_unmute(cx); 969 break; 970 971 default: 972 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 973 return -EINVAL; 974 } 975 return 0; 976 } 977 978 static int cx18_try_encoder_cmd(struct file *file, void *fh, 979 struct v4l2_encoder_cmd *enc) 980 { 981 struct cx18 *cx = fh2id(fh)->cx; 982 983 switch (enc->cmd) { 984 case V4L2_ENC_CMD_START: 985 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 986 enc->flags = 0; 987 break; 988 989 case V4L2_ENC_CMD_STOP: 990 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 991 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 992 break; 993 994 case V4L2_ENC_CMD_PAUSE: 995 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 996 enc->flags = 0; 997 break; 998 999 case V4L2_ENC_CMD_RESUME: 1000 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 1001 enc->flags = 0; 1002 break; 1003 1004 default: 1005 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 1006 return -EINVAL; 1007 } 1008 return 0; 1009 } 1010 1011 static int cx18_log_status(struct file *file, void *fh) 1012 { 1013 struct cx18 *cx = fh2id(fh)->cx; 1014 struct v4l2_input vidin; 1015 struct v4l2_audio audin; 1016 int i; 1017 1018 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1019 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1020 struct tveeprom tv; 1021 1022 cx18_read_eeprom(cx, &tv); 1023 } 1024 cx18_call_all(cx, core, log_status); 1025 cx18_get_input(cx, cx->active_input, &vidin); 1026 cx18_get_audio_input(cx, cx->audio_input, &audin); 1027 CX18_INFO("Video Input: %s\n", vidin.name); 1028 CX18_INFO("Audio Input: %s\n", audin.name); 1029 mutex_lock(&cx->gpio_lock); 1030 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1031 cx->gpio_dir, cx->gpio_val); 1032 mutex_unlock(&cx->gpio_lock); 1033 CX18_INFO("Tuner: %s\n", 1034 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1035 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1036 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1037 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1038 struct cx18_stream *s = &cx->streams[i]; 1039 1040 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1041 continue; 1042 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1043 s->name, s->s_flags, 1044 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1045 / s->buffers, 1046 (s->buffers * s->buf_size) / 1024, s->buffers); 1047 } 1048 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1049 (long long)cx->mpg_data_received, 1050 (long long)cx->vbi_data_inserted); 1051 return 0; 1052 } 1053 1054 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1055 unsigned int cmd, void *arg) 1056 { 1057 struct cx18 *cx = fh2id(fh)->cx; 1058 1059 switch (cmd) { 1060 case VIDIOC_INT_RESET: { 1061 u32 val = *(u32 *)arg; 1062 1063 if ((val == 0) || (val & 0x01)) 1064 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1065 (u32) CX18_GPIO_RESET_Z8F0811); 1066 break; 1067 } 1068 1069 default: 1070 return -ENOTTY; 1071 } 1072 return 0; 1073 } 1074 1075 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1076 .vidioc_querycap = cx18_querycap, 1077 .vidioc_s_audio = cx18_s_audio, 1078 .vidioc_g_audio = cx18_g_audio, 1079 .vidioc_enumaudio = cx18_enumaudio, 1080 .vidioc_enum_input = cx18_enum_input, 1081 .vidioc_g_pixelaspect = cx18_g_pixelaspect, 1082 .vidioc_g_selection = cx18_g_selection, 1083 .vidioc_g_input = cx18_g_input, 1084 .vidioc_s_input = cx18_s_input, 1085 .vidioc_g_frequency = cx18_g_frequency, 1086 .vidioc_s_frequency = cx18_s_frequency, 1087 .vidioc_s_tuner = cx18_s_tuner, 1088 .vidioc_g_tuner = cx18_g_tuner, 1089 .vidioc_g_enc_index = cx18_g_enc_index, 1090 .vidioc_g_std = cx18_g_std, 1091 .vidioc_s_std = cx18_s_std, 1092 .vidioc_log_status = cx18_log_status, 1093 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1094 .vidioc_encoder_cmd = cx18_encoder_cmd, 1095 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1096 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1097 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1098 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1099 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1100 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1101 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1102 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1103 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1104 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1105 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1106 #ifdef CONFIG_VIDEO_ADV_DEBUG 1107 .vidioc_g_register = cx18_g_register, 1108 .vidioc_s_register = cx18_s_register, 1109 #endif 1110 .vidioc_default = cx18_default, 1111 .vidioc_streamon = cx18_streamon, 1112 .vidioc_streamoff = cx18_streamoff, 1113 .vidioc_reqbufs = cx18_reqbufs, 1114 .vidioc_querybuf = cx18_querybuf, 1115 .vidioc_qbuf = cx18_qbuf, 1116 .vidioc_dqbuf = cx18_dqbuf, 1117 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1118 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1119 }; 1120 1121 void cx18_set_funcs(struct video_device *vdev) 1122 { 1123 vdev->ioctl_ops = &cx18_ioctl_ops; 1124 } 1125