1 /* 2 * cx18 ioctl system call 3 * 4 * Derived from ivtv-ioctl.c 5 * 6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> 7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 */ 19 20 #include "cx18-driver.h" 21 #include "cx18-io.h" 22 #include "cx18-version.h" 23 #include "cx18-mailbox.h" 24 #include "cx18-i2c.h" 25 #include "cx18-queue.h" 26 #include "cx18-fileops.h" 27 #include "cx18-vbi.h" 28 #include "cx18-audio.h" 29 #include "cx18-video.h" 30 #include "cx18-streams.h" 31 #include "cx18-ioctl.h" 32 #include "cx18-gpio.h" 33 #include "cx18-controls.h" 34 #include "cx18-cards.h" 35 #include "cx18-av-core.h" 36 #include <media/tveeprom.h> 37 #include <media/v4l2-event.h> 38 39 u16 cx18_service2vbi(int type) 40 { 41 switch (type) { 42 case V4L2_SLICED_TELETEXT_B: 43 return CX18_SLICED_TYPE_TELETEXT_B; 44 case V4L2_SLICED_CAPTION_525: 45 return CX18_SLICED_TYPE_CAPTION_525; 46 case V4L2_SLICED_WSS_625: 47 return CX18_SLICED_TYPE_WSS_625; 48 case V4L2_SLICED_VPS: 49 return CX18_SLICED_TYPE_VPS; 50 default: 51 return 0; 52 } 53 } 54 55 /* Check if VBI services are allowed on the (field, line) for the video std */ 56 static int valid_service_line(int field, int line, int is_pal) 57 { 58 return (is_pal && line >= 6 && 59 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || 60 (!is_pal && line >= 10 && line < 22); 61 } 62 63 /* 64 * For a (field, line, std) and inbound potential set of services for that line, 65 * return the first valid service of those passed in the incoming set for that 66 * line in priority order: 67 * CC, VPS, or WSS over TELETEXT for well known lines 68 * TELETEXT, before VPS, before CC, before WSS, for other lines 69 */ 70 static u16 select_service_from_set(int field, int line, u16 set, int is_pal) 71 { 72 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); 73 int i; 74 75 set = set & valid_set; 76 if (set == 0 || !valid_service_line(field, line, is_pal)) 77 return 0; 78 if (!is_pal) { 79 if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) 80 return V4L2_SLICED_CAPTION_525; 81 } else { 82 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) 83 return V4L2_SLICED_VPS; 84 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) 85 return V4L2_SLICED_WSS_625; 86 if (line == 23) 87 return 0; 88 } 89 for (i = 0; i < 32; i++) { 90 if ((1 << i) & set) 91 return 1 << i; 92 } 93 return 0; 94 } 95 96 /* 97 * Expand the service_set of *fmt into valid service_lines for the std, 98 * and clear the passed in fmt->service_set 99 */ 100 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 101 { 102 u16 set = fmt->service_set; 103 int f, l; 104 105 fmt->service_set = 0; 106 for (f = 0; f < 2; f++) { 107 for (l = 0; l < 24; l++) 108 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); 109 } 110 } 111 112 /* 113 * Sanitize the service_lines in *fmt per the video std, and return 1 114 * if any service_line is left as valid after santization 115 */ 116 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 117 { 118 int f, l; 119 u16 set = 0; 120 121 for (f = 0; f < 2; f++) { 122 for (l = 0; l < 24; l++) { 123 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); 124 set |= fmt->service_lines[f][l]; 125 } 126 } 127 return set != 0; 128 } 129 130 /* Compute the service_set from the assumed valid service_lines of *fmt */ 131 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) 132 { 133 int f, l; 134 u16 set = 0; 135 136 for (f = 0; f < 2; f++) { 137 for (l = 0; l < 24; l++) 138 set |= fmt->service_lines[f][l]; 139 } 140 return set; 141 } 142 143 static int cx18_g_fmt_vid_cap(struct file *file, void *fh, 144 struct v4l2_format *fmt) 145 { 146 struct cx18_open_id *id = fh2id(fh); 147 struct cx18 *cx = id->cx; 148 struct cx18_stream *s = &cx->streams[id->type]; 149 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 150 151 pixfmt->width = cx->cxhdl.width; 152 pixfmt->height = cx->cxhdl.height; 153 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 154 pixfmt->field = V4L2_FIELD_INTERLACED; 155 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 156 pixfmt->pixelformat = s->pixelformat; 157 pixfmt->sizeimage = s->vb_bytes_per_frame; 158 pixfmt->bytesperline = s->vb_bytes_per_line; 159 } else { 160 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 161 pixfmt->sizeimage = 128 * 1024; 162 pixfmt->bytesperline = 0; 163 } 164 return 0; 165 } 166 167 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, 168 struct v4l2_format *fmt) 169 { 170 struct cx18 *cx = fh2id(fh)->cx; 171 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; 172 173 vbifmt->sampling_rate = 27000000; 174 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ 175 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4; 176 vbifmt->sample_format = V4L2_PIX_FMT_GREY; 177 vbifmt->start[0] = cx->vbi.start[0]; 178 vbifmt->start[1] = cx->vbi.start[1]; 179 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; 180 vbifmt->flags = 0; 181 vbifmt->reserved[0] = 0; 182 vbifmt->reserved[1] = 0; 183 return 0; 184 } 185 186 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, 187 struct v4l2_format *fmt) 188 { 189 struct cx18 *cx = fh2id(fh)->cx; 190 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 191 192 /* sane, V4L2 spec compliant, defaults */ 193 vbifmt->reserved[0] = 0; 194 vbifmt->reserved[1] = 0; 195 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 196 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); 197 vbifmt->service_set = 0; 198 199 /* 200 * Fetch the configured service_lines and total service_set from the 201 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in 202 * fmt->fmt.sliced under valid calling conditions 203 */ 204 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) 205 return -EINVAL; 206 207 vbifmt->service_set = cx18_get_service_set(vbifmt); 208 return 0; 209 } 210 211 static int cx18_try_fmt_vid_cap(struct file *file, void *fh, 212 struct v4l2_format *fmt) 213 { 214 struct cx18_open_id *id = fh2id(fh); 215 struct cx18 *cx = id->cx; 216 int w = fmt->fmt.pix.width; 217 int h = fmt->fmt.pix.height; 218 int min_h = 2; 219 220 w = min(w, 720); 221 w = max(w, 2); 222 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 223 /* YUV height must be a multiple of 32 */ 224 h &= ~0x1f; 225 min_h = 32; 226 } 227 h = min(h, cx->is_50hz ? 576 : 480); 228 h = max(h, min_h); 229 230 fmt->fmt.pix.width = w; 231 fmt->fmt.pix.height = h; 232 return 0; 233 } 234 235 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, 236 struct v4l2_format *fmt) 237 { 238 return cx18_g_fmt_vbi_cap(file, fh, fmt); 239 } 240 241 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, 242 struct v4l2_format *fmt) 243 { 244 struct cx18 *cx = fh2id(fh)->cx; 245 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 246 247 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 248 vbifmt->reserved[0] = 0; 249 vbifmt->reserved[1] = 0; 250 251 /* If given a service set, expand it validly & clear passed in set */ 252 if (vbifmt->service_set) 253 cx18_expand_service_set(vbifmt, cx->is_50hz); 254 /* Sanitize the service_lines, and compute the new set if any valid */ 255 if (check_service_set(vbifmt, cx->is_50hz)) 256 vbifmt->service_set = cx18_get_service_set(vbifmt); 257 return 0; 258 } 259 260 static int cx18_s_fmt_vid_cap(struct file *file, void *fh, 261 struct v4l2_format *fmt) 262 { 263 struct cx18_open_id *id = fh2id(fh); 264 struct cx18 *cx = id->cx; 265 struct v4l2_subdev_format format = { 266 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 267 }; 268 struct cx18_stream *s = &cx->streams[id->type]; 269 int ret; 270 int w, h; 271 272 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 273 if (ret) 274 return ret; 275 w = fmt->fmt.pix.width; 276 h = fmt->fmt.pix.height; 277 278 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 279 s->pixelformat == fmt->fmt.pix.pixelformat) 280 return 0; 281 282 if (atomic_read(&cx->ana_capturing) > 0) 283 return -EBUSY; 284 285 s->pixelformat = fmt->fmt.pix.pixelformat; 286 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 287 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ 288 if (s->pixelformat == V4L2_PIX_FMT_HM12) { 289 s->vb_bytes_per_frame = h * 720 * 3 / 2; 290 s->vb_bytes_per_line = 720; /* First plane */ 291 } else { 292 s->vb_bytes_per_frame = h * 720 * 2; 293 s->vb_bytes_per_line = 1440; /* Packed */ 294 } 295 296 format.format.width = cx->cxhdl.width = w; 297 format.format.height = cx->cxhdl.height = h; 298 format.format.code = MEDIA_BUS_FMT_FIXED; 299 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); 300 return cx18_g_fmt_vid_cap(file, fh, fmt); 301 } 302 303 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 304 struct v4l2_format *fmt) 305 { 306 struct cx18_open_id *id = fh2id(fh); 307 struct cx18 *cx = id->cx; 308 int ret; 309 310 /* 311 * Changing the Encoder's Raw VBI parameters won't have any effect 312 * if any analog capture is ongoing 313 */ 314 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 315 return -EBUSY; 316 317 /* 318 * Set the digitizer registers for raw active VBI. 319 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 320 * calling conditions 321 */ 322 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 323 if (ret) 324 return ret; 325 326 /* Store our new v4l2 (non-)sliced VBI state */ 327 cx->vbi.sliced_in->service_set = 0; 328 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 329 330 return cx18_g_fmt_vbi_cap(file, fh, fmt); 331 } 332 333 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 334 struct v4l2_format *fmt) 335 { 336 struct cx18_open_id *id = fh2id(fh); 337 struct cx18 *cx = id->cx; 338 int ret; 339 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 340 341 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 342 343 /* 344 * Changing the Encoder's Raw VBI parameters won't have any effect 345 * if any analog capture is ongoing 346 */ 347 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 348 return -EBUSY; 349 350 /* 351 * Set the service_lines requested in the digitizer/slicer registers. 352 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 353 * passed in fmt->fmt.sliced under valid calling conditions 354 */ 355 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 356 if (ret) 357 return ret; 358 /* Store our current v4l2 sliced VBI settings */ 359 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 360 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 361 return 0; 362 } 363 364 #ifdef CONFIG_VIDEO_ADV_DEBUG 365 static int cx18_g_register(struct file *file, void *fh, 366 struct v4l2_dbg_register *reg) 367 { 368 struct cx18 *cx = fh2id(fh)->cx; 369 370 if (reg->reg & 0x3) 371 return -EINVAL; 372 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 373 return -EINVAL; 374 reg->size = 4; 375 reg->val = cx18_read_enc(cx, reg->reg); 376 return 0; 377 } 378 379 static int cx18_s_register(struct file *file, void *fh, 380 const struct v4l2_dbg_register *reg) 381 { 382 struct cx18 *cx = fh2id(fh)->cx; 383 384 if (reg->reg & 0x3) 385 return -EINVAL; 386 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 387 return -EINVAL; 388 cx18_write_enc(cx, reg->val, reg->reg); 389 return 0; 390 } 391 #endif 392 393 static int cx18_querycap(struct file *file, void *fh, 394 struct v4l2_capability *vcap) 395 { 396 struct cx18_open_id *id = fh2id(fh); 397 struct cx18_stream *s = video_drvdata(file); 398 struct cx18 *cx = id->cx; 399 400 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 401 strscpy(vcap->card, cx->card_name, sizeof(vcap->card)); 402 snprintf(vcap->bus_info, sizeof(vcap->bus_info), 403 "PCI:%s", pci_name(cx->pci_dev)); 404 vcap->capabilities = cx->v4l2_cap; /* capabilities */ 405 vcap->device_caps = s->v4l2_dev_caps; /* device capabilities */ 406 vcap->capabilities |= V4L2_CAP_DEVICE_CAPS; 407 return 0; 408 } 409 410 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 411 { 412 struct cx18 *cx = fh2id(fh)->cx; 413 414 return cx18_get_audio_input(cx, vin->index, vin); 415 } 416 417 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 418 { 419 struct cx18 *cx = fh2id(fh)->cx; 420 421 vin->index = cx->audio_input; 422 return cx18_get_audio_input(cx, vin->index, vin); 423 } 424 425 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 426 { 427 struct cx18 *cx = fh2id(fh)->cx; 428 429 if (vout->index >= cx->nof_audio_inputs) 430 return -EINVAL; 431 cx->audio_input = vout->index; 432 cx18_audio_set_io(cx); 433 return 0; 434 } 435 436 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 437 { 438 struct cx18 *cx = fh2id(fh)->cx; 439 440 /* set it to defaults from our table */ 441 return cx18_get_input(cx, vin->index, vin); 442 } 443 444 static int cx18_g_pixelaspect(struct file *file, void *fh, 445 int type, struct v4l2_fract *f) 446 { 447 struct cx18 *cx = fh2id(fh)->cx; 448 449 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 450 return -EINVAL; 451 452 f->numerator = cx->is_50hz ? 54 : 11; 453 f->denominator = cx->is_50hz ? 59 : 10; 454 return 0; 455 } 456 457 static int cx18_g_selection(struct file *file, void *fh, 458 struct v4l2_selection *sel) 459 { 460 struct cx18 *cx = fh2id(fh)->cx; 461 462 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 463 return -EINVAL; 464 switch (sel->target) { 465 case V4L2_SEL_TGT_CROP_BOUNDS: 466 case V4L2_SEL_TGT_CROP_DEFAULT: 467 sel->r.top = sel->r.left = 0; 468 sel->r.width = 720; 469 sel->r.height = cx->is_50hz ? 576 : 480; 470 break; 471 default: 472 return -EINVAL; 473 } 474 return 0; 475 } 476 477 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 478 struct v4l2_fmtdesc *fmt) 479 { 480 static const struct v4l2_fmtdesc formats[] = { 481 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 482 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } 483 }, 484 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, 485 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } 486 }, 487 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 488 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } 489 }, 490 }; 491 492 if (fmt->index > ARRAY_SIZE(formats) - 1) 493 return -EINVAL; 494 *fmt = formats[fmt->index]; 495 return 0; 496 } 497 498 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 499 { 500 struct cx18 *cx = fh2id(fh)->cx; 501 502 *i = cx->active_input; 503 return 0; 504 } 505 506 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 507 { 508 struct cx18_open_id *id = fh2id(fh); 509 struct cx18 *cx = id->cx; 510 v4l2_std_id std = V4L2_STD_ALL; 511 const struct cx18_card_video_input *card_input = 512 cx->card->video_inputs + inp; 513 514 if (inp >= cx->nof_inputs) 515 return -EINVAL; 516 517 if (inp == cx->active_input) { 518 CX18_DEBUG_INFO("Input unchanged\n"); 519 return 0; 520 } 521 522 CX18_DEBUG_INFO("Changing input from %d to %d\n", 523 cx->active_input, inp); 524 525 cx->active_input = inp; 526 /* Set the audio input to whatever is appropriate for the input type. */ 527 cx->audio_input = cx->card->video_inputs[inp].audio_index; 528 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 529 std = cx->tuner_std; 530 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 531 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 532 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 533 534 /* prevent others from messing with the streams until 535 we're finished changing inputs. */ 536 cx18_mute(cx); 537 cx18_video_set_io(cx); 538 cx18_audio_set_io(cx); 539 cx18_unmute(cx); 540 return 0; 541 } 542 543 static int cx18_g_frequency(struct file *file, void *fh, 544 struct v4l2_frequency *vf) 545 { 546 struct cx18 *cx = fh2id(fh)->cx; 547 548 if (vf->tuner != 0) 549 return -EINVAL; 550 551 cx18_call_all(cx, tuner, g_frequency, vf); 552 return 0; 553 } 554 555 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 556 { 557 struct cx18_open_id *id = fh2id(fh); 558 struct cx18 *cx = id->cx; 559 560 if (vf->tuner != 0) 561 return -EINVAL; 562 563 cx18_mute(cx); 564 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 565 cx18_call_all(cx, tuner, s_frequency, vf); 566 cx18_unmute(cx); 567 return 0; 568 } 569 570 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 571 { 572 struct cx18 *cx = fh2id(fh)->cx; 573 574 *std = cx->std; 575 return 0; 576 } 577 578 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 579 { 580 struct cx18_open_id *id = fh2id(fh); 581 struct cx18 *cx = id->cx; 582 583 if ((std & V4L2_STD_ALL) == 0) 584 return -EINVAL; 585 586 if (std == cx->std) 587 return 0; 588 589 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 590 atomic_read(&cx->ana_capturing) > 0) { 591 /* Switching standard would turn off the radio or mess 592 with already running streams, prevent that by 593 returning EBUSY. */ 594 return -EBUSY; 595 } 596 597 cx->std = std; 598 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 599 cx->is_50hz = !cx->is_60hz; 600 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 601 cx->cxhdl.width = 720; 602 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 603 cx->vbi.count = cx->is_50hz ? 18 : 12; 604 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 605 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 606 CX18_DEBUG_INFO("Switching standard to %llx.\n", 607 (unsigned long long) cx->std); 608 609 /* Tuner */ 610 cx18_call_all(cx, video, s_std, cx->std); 611 return 0; 612 } 613 614 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 615 { 616 struct cx18_open_id *id = fh2id(fh); 617 struct cx18 *cx = id->cx; 618 619 if (vt->index != 0) 620 return -EINVAL; 621 622 cx18_call_all(cx, tuner, s_tuner, vt); 623 return 0; 624 } 625 626 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 627 { 628 struct cx18 *cx = fh2id(fh)->cx; 629 630 if (vt->index != 0) 631 return -EINVAL; 632 633 cx18_call_all(cx, tuner, g_tuner, vt); 634 635 if (vt->type == V4L2_TUNER_RADIO) 636 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 637 else 638 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 639 return 0; 640 } 641 642 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 643 struct v4l2_sliced_vbi_cap *cap) 644 { 645 struct cx18 *cx = fh2id(fh)->cx; 646 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 647 int f, l; 648 649 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 650 return -EINVAL; 651 652 cap->service_set = 0; 653 for (f = 0; f < 2; f++) { 654 for (l = 0; l < 24; l++) { 655 if (valid_service_line(f, l, cx->is_50hz)) { 656 /* 657 * We can find all v4l2 supported vbi services 658 * for the standard, on a valid line for the std 659 */ 660 cap->service_lines[f][l] = set; 661 cap->service_set |= set; 662 } else 663 cap->service_lines[f][l] = 0; 664 } 665 } 666 for (f = 0; f < 3; f++) 667 cap->reserved[f] = 0; 668 return 0; 669 } 670 671 static int _cx18_process_idx_data(struct cx18_buffer *buf, 672 struct v4l2_enc_idx *idx) 673 { 674 int consumed, remaining; 675 struct v4l2_enc_idx_entry *e_idx; 676 struct cx18_enc_idx_entry *e_buf; 677 678 /* Frame type lookup: 1=I, 2=P, 4=B */ 679 const int mapping[8] = { 680 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 681 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 682 }; 683 684 /* 685 * Assumption here is that a buf holds an integral number of 686 * struct cx18_enc_idx_entry objects and is properly aligned. 687 * This is enforced by the module options on IDX buffer sizes. 688 */ 689 remaining = buf->bytesused - buf->readpos; 690 consumed = 0; 691 e_idx = &idx->entry[idx->entries]; 692 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 693 694 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 695 idx->entries < V4L2_ENC_IDX_ENTRIES) { 696 697 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 698 | le32_to_cpu(e_buf->offset_low); 699 700 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 701 | le32_to_cpu(e_buf->pts_low); 702 703 e_idx->length = le32_to_cpu(e_buf->length); 704 705 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 706 707 e_idx->reserved[0] = 0; 708 e_idx->reserved[1] = 0; 709 710 idx->entries++; 711 e_idx = &idx->entry[idx->entries]; 712 e_buf++; 713 714 remaining -= sizeof(struct cx18_enc_idx_entry); 715 consumed += sizeof(struct cx18_enc_idx_entry); 716 } 717 718 /* Swallow any partial entries at the end, if there are any */ 719 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 720 consumed += remaining; 721 722 buf->readpos += consumed; 723 return consumed; 724 } 725 726 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 727 struct v4l2_enc_idx *idx) 728 { 729 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 730 return -EINVAL; 731 732 if (mdl->curr_buf == NULL) 733 mdl->curr_buf = list_first_entry(&mdl->buf_list, 734 struct cx18_buffer, list); 735 736 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 737 /* 738 * For some reason we've exhausted the buffers, but the MDL 739 * object still said some data was unread. 740 * Fix that and bail out. 741 */ 742 mdl->readpos = mdl->bytesused; 743 return 0; 744 } 745 746 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 747 748 /* Skip any empty buffers in the MDL */ 749 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 750 continue; 751 752 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 753 754 /* exit when MDL drained or request satisfied */ 755 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 756 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 757 mdl->readpos >= mdl->bytesused) 758 break; 759 } 760 return 0; 761 } 762 763 static int cx18_g_enc_index(struct file *file, void *fh, 764 struct v4l2_enc_idx *idx) 765 { 766 struct cx18 *cx = fh2id(fh)->cx; 767 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 768 s32 tmp; 769 struct cx18_mdl *mdl; 770 771 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 772 return -EINVAL; 773 774 /* Compute the best case number of entries we can buffer */ 775 tmp = s->buffers - 776 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 777 if (tmp <= 0) 778 tmp = 1; 779 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 780 781 /* Fill out the header of the return structure */ 782 idx->entries = 0; 783 idx->entries_cap = tmp; 784 memset(idx->reserved, 0, sizeof(idx->reserved)); 785 786 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 787 do { 788 mdl = cx18_dequeue(s, &s->q_full); 789 if (mdl == NULL) /* No more IDX data right now */ 790 break; 791 792 /* Extract the Index entry data from the MDL and buffers */ 793 cx18_process_idx_data(s, mdl, idx); 794 if (mdl->readpos < mdl->bytesused) { 795 /* We finished with data remaining, push the MDL back */ 796 cx18_push(s, mdl, &s->q_full); 797 break; 798 } 799 800 /* We drained this MDL, schedule it to go to the firmware */ 801 cx18_enqueue(s, mdl, &s->q_free); 802 803 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 804 805 /* Tell the work handler to send free IDX MDLs to the firmware */ 806 cx18_stream_load_fw_queue(s); 807 return 0; 808 } 809 810 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 811 { 812 struct videobuf_queue *q = NULL; 813 struct cx18 *cx = id->cx; 814 struct cx18_stream *s = &cx->streams[id->type]; 815 816 switch (s->vb_type) { 817 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 818 q = &s->vbuf_q; 819 break; 820 case V4L2_BUF_TYPE_VBI_CAPTURE: 821 break; 822 default: 823 break; 824 } 825 return q; 826 } 827 828 static int cx18_streamon(struct file *file, void *priv, 829 enum v4l2_buf_type type) 830 { 831 struct cx18_open_id *id = file->private_data; 832 struct cx18 *cx = id->cx; 833 struct cx18_stream *s = &cx->streams[id->type]; 834 835 /* Start the hardware only if we're the video device */ 836 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 837 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 838 return -EINVAL; 839 840 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 841 return -EINVAL; 842 843 /* Establish a buffer timeout */ 844 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 845 846 return videobuf_streamon(cx18_vb_queue(id)); 847 } 848 849 static int cx18_streamoff(struct file *file, void *priv, 850 enum v4l2_buf_type type) 851 { 852 struct cx18_open_id *id = file->private_data; 853 struct cx18 *cx = id->cx; 854 struct cx18_stream *s = &cx->streams[id->type]; 855 856 /* Start the hardware only if we're the video device */ 857 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 858 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 859 return -EINVAL; 860 861 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 862 return -EINVAL; 863 864 return videobuf_streamoff(cx18_vb_queue(id)); 865 } 866 867 static int cx18_reqbufs(struct file *file, void *priv, 868 struct v4l2_requestbuffers *rb) 869 { 870 struct cx18_open_id *id = file->private_data; 871 struct cx18 *cx = id->cx; 872 struct cx18_stream *s = &cx->streams[id->type]; 873 874 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 875 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 876 return -EINVAL; 877 878 return videobuf_reqbufs(cx18_vb_queue(id), rb); 879 } 880 881 static int cx18_querybuf(struct file *file, void *priv, 882 struct v4l2_buffer *b) 883 { 884 struct cx18_open_id *id = file->private_data; 885 struct cx18 *cx = id->cx; 886 struct cx18_stream *s = &cx->streams[id->type]; 887 888 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 889 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 890 return -EINVAL; 891 892 return videobuf_querybuf(cx18_vb_queue(id), b); 893 } 894 895 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 896 { 897 struct cx18_open_id *id = file->private_data; 898 struct cx18 *cx = id->cx; 899 struct cx18_stream *s = &cx->streams[id->type]; 900 901 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 902 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 903 return -EINVAL; 904 905 return videobuf_qbuf(cx18_vb_queue(id), b); 906 } 907 908 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 909 { 910 struct cx18_open_id *id = file->private_data; 911 struct cx18 *cx = id->cx; 912 struct cx18_stream *s = &cx->streams[id->type]; 913 914 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 915 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 916 return -EINVAL; 917 918 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 919 } 920 921 static int cx18_encoder_cmd(struct file *file, void *fh, 922 struct v4l2_encoder_cmd *enc) 923 { 924 struct cx18_open_id *id = fh2id(fh); 925 struct cx18 *cx = id->cx; 926 u32 h; 927 928 switch (enc->cmd) { 929 case V4L2_ENC_CMD_START: 930 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 931 enc->flags = 0; 932 return cx18_start_capture(id); 933 934 case V4L2_ENC_CMD_STOP: 935 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 936 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 937 cx18_stop_capture(id, 938 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 939 break; 940 941 case V4L2_ENC_CMD_PAUSE: 942 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 943 enc->flags = 0; 944 if (!atomic_read(&cx->ana_capturing)) 945 return -EPERM; 946 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 947 return 0; 948 h = cx18_find_handle(cx); 949 if (h == CX18_INVALID_TASK_HANDLE) { 950 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n"); 951 return -EBADFD; 952 } 953 cx18_mute(cx); 954 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 955 break; 956 957 case V4L2_ENC_CMD_RESUME: 958 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 959 enc->flags = 0; 960 if (!atomic_read(&cx->ana_capturing)) 961 return -EPERM; 962 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 963 return 0; 964 h = cx18_find_handle(cx); 965 if (h == CX18_INVALID_TASK_HANDLE) { 966 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n"); 967 return -EBADFD; 968 } 969 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 970 cx18_unmute(cx); 971 break; 972 973 default: 974 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 975 return -EINVAL; 976 } 977 return 0; 978 } 979 980 static int cx18_try_encoder_cmd(struct file *file, void *fh, 981 struct v4l2_encoder_cmd *enc) 982 { 983 struct cx18 *cx = fh2id(fh)->cx; 984 985 switch (enc->cmd) { 986 case V4L2_ENC_CMD_START: 987 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 988 enc->flags = 0; 989 break; 990 991 case V4L2_ENC_CMD_STOP: 992 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 993 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 994 break; 995 996 case V4L2_ENC_CMD_PAUSE: 997 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 998 enc->flags = 0; 999 break; 1000 1001 case V4L2_ENC_CMD_RESUME: 1002 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 1003 enc->flags = 0; 1004 break; 1005 1006 default: 1007 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 1008 return -EINVAL; 1009 } 1010 return 0; 1011 } 1012 1013 static int cx18_log_status(struct file *file, void *fh) 1014 { 1015 struct cx18 *cx = fh2id(fh)->cx; 1016 struct v4l2_input vidin; 1017 struct v4l2_audio audin; 1018 int i; 1019 1020 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1021 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1022 struct tveeprom tv; 1023 1024 cx18_read_eeprom(cx, &tv); 1025 } 1026 cx18_call_all(cx, core, log_status); 1027 cx18_get_input(cx, cx->active_input, &vidin); 1028 cx18_get_audio_input(cx, cx->audio_input, &audin); 1029 CX18_INFO("Video Input: %s\n", vidin.name); 1030 CX18_INFO("Audio Input: %s\n", audin.name); 1031 mutex_lock(&cx->gpio_lock); 1032 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1033 cx->gpio_dir, cx->gpio_val); 1034 mutex_unlock(&cx->gpio_lock); 1035 CX18_INFO("Tuner: %s\n", 1036 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1037 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1038 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1039 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1040 struct cx18_stream *s = &cx->streams[i]; 1041 1042 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1043 continue; 1044 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1045 s->name, s->s_flags, 1046 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1047 / s->buffers, 1048 (s->buffers * s->buf_size) / 1024, s->buffers); 1049 } 1050 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1051 (long long)cx->mpg_data_received, 1052 (long long)cx->vbi_data_inserted); 1053 return 0; 1054 } 1055 1056 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1057 unsigned int cmd, void *arg) 1058 { 1059 struct cx18 *cx = fh2id(fh)->cx; 1060 1061 switch (cmd) { 1062 case VIDIOC_INT_RESET: { 1063 u32 val = *(u32 *)arg; 1064 1065 if ((val == 0) || (val & 0x01)) 1066 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1067 (u32) CX18_GPIO_RESET_Z8F0811); 1068 break; 1069 } 1070 1071 default: 1072 return -ENOTTY; 1073 } 1074 return 0; 1075 } 1076 1077 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1078 .vidioc_querycap = cx18_querycap, 1079 .vidioc_s_audio = cx18_s_audio, 1080 .vidioc_g_audio = cx18_g_audio, 1081 .vidioc_enumaudio = cx18_enumaudio, 1082 .vidioc_enum_input = cx18_enum_input, 1083 .vidioc_g_pixelaspect = cx18_g_pixelaspect, 1084 .vidioc_g_selection = cx18_g_selection, 1085 .vidioc_g_input = cx18_g_input, 1086 .vidioc_s_input = cx18_s_input, 1087 .vidioc_g_frequency = cx18_g_frequency, 1088 .vidioc_s_frequency = cx18_s_frequency, 1089 .vidioc_s_tuner = cx18_s_tuner, 1090 .vidioc_g_tuner = cx18_g_tuner, 1091 .vidioc_g_enc_index = cx18_g_enc_index, 1092 .vidioc_g_std = cx18_g_std, 1093 .vidioc_s_std = cx18_s_std, 1094 .vidioc_log_status = cx18_log_status, 1095 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1096 .vidioc_encoder_cmd = cx18_encoder_cmd, 1097 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1098 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1099 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1100 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1101 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1102 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1103 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1104 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1105 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1106 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1107 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1108 #ifdef CONFIG_VIDEO_ADV_DEBUG 1109 .vidioc_g_register = cx18_g_register, 1110 .vidioc_s_register = cx18_s_register, 1111 #endif 1112 .vidioc_default = cx18_default, 1113 .vidioc_streamon = cx18_streamon, 1114 .vidioc_streamoff = cx18_streamoff, 1115 .vidioc_reqbufs = cx18_reqbufs, 1116 .vidioc_querybuf = cx18_querybuf, 1117 .vidioc_qbuf = cx18_qbuf, 1118 .vidioc_dqbuf = cx18_dqbuf, 1119 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1120 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1121 }; 1122 1123 void cx18_set_funcs(struct video_device *vdev) 1124 { 1125 vdev->ioctl_ops = &cx18_ioctl_ops; 1126 } 1127