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 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 22 * 02111-1307 USA 23 */ 24 25 #include "cx18-driver.h" 26 #include "cx18-io.h" 27 #include "cx18-version.h" 28 #include "cx18-mailbox.h" 29 #include "cx18-i2c.h" 30 #include "cx18-queue.h" 31 #include "cx18-fileops.h" 32 #include "cx18-vbi.h" 33 #include "cx18-audio.h" 34 #include "cx18-video.h" 35 #include "cx18-streams.h" 36 #include "cx18-ioctl.h" 37 #include "cx18-gpio.h" 38 #include "cx18-controls.h" 39 #include "cx18-cards.h" 40 #include "cx18-av-core.h" 41 #include <media/tveeprom.h> 42 #include <media/v4l2-event.h> 43 44 u16 cx18_service2vbi(int type) 45 { 46 switch (type) { 47 case V4L2_SLICED_TELETEXT_B: 48 return CX18_SLICED_TYPE_TELETEXT_B; 49 case V4L2_SLICED_CAPTION_525: 50 return CX18_SLICED_TYPE_CAPTION_525; 51 case V4L2_SLICED_WSS_625: 52 return CX18_SLICED_TYPE_WSS_625; 53 case V4L2_SLICED_VPS: 54 return CX18_SLICED_TYPE_VPS; 55 default: 56 return 0; 57 } 58 } 59 60 /* Check if VBI services are allowed on the (field, line) for the video std */ 61 static int valid_service_line(int field, int line, int is_pal) 62 { 63 return (is_pal && line >= 6 && 64 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || 65 (!is_pal && line >= 10 && line < 22); 66 } 67 68 /* 69 * For a (field, line, std) and inbound potential set of services for that line, 70 * return the first valid service of those passed in the incoming set for that 71 * line in priority order: 72 * CC, VPS, or WSS over TELETEXT for well known lines 73 * TELETEXT, before VPS, before CC, before WSS, for other lines 74 */ 75 static u16 select_service_from_set(int field, int line, u16 set, int is_pal) 76 { 77 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); 78 int i; 79 80 set = set & valid_set; 81 if (set == 0 || !valid_service_line(field, line, is_pal)) 82 return 0; 83 if (!is_pal) { 84 if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) 85 return V4L2_SLICED_CAPTION_525; 86 } else { 87 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) 88 return V4L2_SLICED_VPS; 89 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) 90 return V4L2_SLICED_WSS_625; 91 if (line == 23) 92 return 0; 93 } 94 for (i = 0; i < 32; i++) { 95 if ((1 << i) & set) 96 return 1 << i; 97 } 98 return 0; 99 } 100 101 /* 102 * Expand the service_set of *fmt into valid service_lines for the std, 103 * and clear the passed in fmt->service_set 104 */ 105 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 106 { 107 u16 set = fmt->service_set; 108 int f, l; 109 110 fmt->service_set = 0; 111 for (f = 0; f < 2; f++) { 112 for (l = 0; l < 24; l++) 113 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); 114 } 115 } 116 117 /* 118 * Sanitize the service_lines in *fmt per the video std, and return 1 119 * if any service_line is left as valid after santization 120 */ 121 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 122 { 123 int f, l; 124 u16 set = 0; 125 126 for (f = 0; f < 2; f++) { 127 for (l = 0; l < 24; l++) { 128 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); 129 set |= fmt->service_lines[f][l]; 130 } 131 } 132 return set != 0; 133 } 134 135 /* Compute the service_set from the assumed valid service_lines of *fmt */ 136 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) 137 { 138 int f, l; 139 u16 set = 0; 140 141 for (f = 0; f < 2; f++) { 142 for (l = 0; l < 24; l++) 143 set |= fmt->service_lines[f][l]; 144 } 145 return set; 146 } 147 148 static int cx18_g_fmt_vid_cap(struct file *file, void *fh, 149 struct v4l2_format *fmt) 150 { 151 struct cx18_open_id *id = fh2id(fh); 152 struct cx18 *cx = id->cx; 153 struct cx18_stream *s = &cx->streams[id->type]; 154 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 155 156 pixfmt->width = cx->cxhdl.width; 157 pixfmt->height = cx->cxhdl.height; 158 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 159 pixfmt->field = V4L2_FIELD_INTERLACED; 160 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 161 pixfmt->pixelformat = s->pixelformat; 162 pixfmt->sizeimage = s->vb_bytes_per_frame; 163 pixfmt->bytesperline = s->vb_bytes_per_line; 164 } else { 165 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 166 pixfmt->sizeimage = 128 * 1024; 167 pixfmt->bytesperline = 0; 168 } 169 return 0; 170 } 171 172 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, 173 struct v4l2_format *fmt) 174 { 175 struct cx18 *cx = fh2id(fh)->cx; 176 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; 177 178 vbifmt->sampling_rate = 27000000; 179 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ 180 vbifmt->samples_per_line = vbi_active_samples - 4; 181 vbifmt->sample_format = V4L2_PIX_FMT_GREY; 182 vbifmt->start[0] = cx->vbi.start[0]; 183 vbifmt->start[1] = cx->vbi.start[1]; 184 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; 185 vbifmt->flags = 0; 186 vbifmt->reserved[0] = 0; 187 vbifmt->reserved[1] = 0; 188 return 0; 189 } 190 191 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, 192 struct v4l2_format *fmt) 193 { 194 struct cx18 *cx = fh2id(fh)->cx; 195 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 196 197 /* sane, V4L2 spec compliant, defaults */ 198 vbifmt->reserved[0] = 0; 199 vbifmt->reserved[1] = 0; 200 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 201 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); 202 vbifmt->service_set = 0; 203 204 /* 205 * Fetch the configured service_lines and total service_set from the 206 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in 207 * fmt->fmt.sliced under valid calling conditions 208 */ 209 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) 210 return -EINVAL; 211 212 vbifmt->service_set = cx18_get_service_set(vbifmt); 213 return 0; 214 } 215 216 static int cx18_try_fmt_vid_cap(struct file *file, void *fh, 217 struct v4l2_format *fmt) 218 { 219 struct cx18_open_id *id = fh2id(fh); 220 struct cx18 *cx = id->cx; 221 int w = fmt->fmt.pix.width; 222 int h = fmt->fmt.pix.height; 223 int min_h = 2; 224 225 w = min(w, 720); 226 w = max(w, 2); 227 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 228 /* YUV height must be a multiple of 32 */ 229 h &= ~0x1f; 230 min_h = 32; 231 } 232 h = min(h, cx->is_50hz ? 576 : 480); 233 h = max(h, min_h); 234 235 fmt->fmt.pix.width = w; 236 fmt->fmt.pix.height = h; 237 return 0; 238 } 239 240 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, 241 struct v4l2_format *fmt) 242 { 243 return cx18_g_fmt_vbi_cap(file, fh, fmt); 244 } 245 246 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, 247 struct v4l2_format *fmt) 248 { 249 struct cx18 *cx = fh2id(fh)->cx; 250 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 251 252 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 253 vbifmt->reserved[0] = 0; 254 vbifmt->reserved[1] = 0; 255 256 /* If given a service set, expand it validly & clear passed in set */ 257 if (vbifmt->service_set) 258 cx18_expand_service_set(vbifmt, cx->is_50hz); 259 /* Sanitize the service_lines, and compute the new set if any valid */ 260 if (check_service_set(vbifmt, cx->is_50hz)) 261 vbifmt->service_set = cx18_get_service_set(vbifmt); 262 return 0; 263 } 264 265 static int cx18_s_fmt_vid_cap(struct file *file, void *fh, 266 struct v4l2_format *fmt) 267 { 268 struct cx18_open_id *id = fh2id(fh); 269 struct cx18 *cx = id->cx; 270 struct v4l2_subdev_format format = { 271 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 272 }; 273 struct cx18_stream *s = &cx->streams[id->type]; 274 int ret; 275 int w, h; 276 277 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 278 if (ret) 279 return ret; 280 w = fmt->fmt.pix.width; 281 h = fmt->fmt.pix.height; 282 283 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 284 s->pixelformat == fmt->fmt.pix.pixelformat) 285 return 0; 286 287 if (atomic_read(&cx->ana_capturing) > 0) 288 return -EBUSY; 289 290 s->pixelformat = fmt->fmt.pix.pixelformat; 291 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 292 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ 293 if (s->pixelformat == V4L2_PIX_FMT_HM12) { 294 s->vb_bytes_per_frame = h * 720 * 3 / 2; 295 s->vb_bytes_per_line = 720; /* First plane */ 296 } else { 297 s->vb_bytes_per_frame = h * 720 * 2; 298 s->vb_bytes_per_line = 1440; /* Packed */ 299 } 300 301 format.format.width = cx->cxhdl.width = w; 302 format.format.height = cx->cxhdl.height = h; 303 format.format.code = MEDIA_BUS_FMT_FIXED; 304 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); 305 return cx18_g_fmt_vid_cap(file, fh, fmt); 306 } 307 308 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 309 struct v4l2_format *fmt) 310 { 311 struct cx18_open_id *id = fh2id(fh); 312 struct cx18 *cx = id->cx; 313 int ret; 314 315 /* 316 * Changing the Encoder's Raw VBI parameters won't have any effect 317 * if any analog capture is ongoing 318 */ 319 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 320 return -EBUSY; 321 322 /* 323 * Set the digitizer registers for raw active VBI. 324 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 325 * calling conditions 326 */ 327 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 328 if (ret) 329 return ret; 330 331 /* Store our new v4l2 (non-)sliced VBI state */ 332 cx->vbi.sliced_in->service_set = 0; 333 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 334 335 return cx18_g_fmt_vbi_cap(file, fh, fmt); 336 } 337 338 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 339 struct v4l2_format *fmt) 340 { 341 struct cx18_open_id *id = fh2id(fh); 342 struct cx18 *cx = id->cx; 343 int ret; 344 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 345 346 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 347 348 /* 349 * Changing the Encoder's Raw VBI parameters won't have any effect 350 * if any analog capture is ongoing 351 */ 352 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 353 return -EBUSY; 354 355 /* 356 * Set the service_lines requested in the digitizer/slicer registers. 357 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 358 * passed in fmt->fmt.sliced under valid calling conditions 359 */ 360 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 361 if (ret) 362 return ret; 363 /* Store our current v4l2 sliced VBI settings */ 364 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 365 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 366 return 0; 367 } 368 369 #ifdef CONFIG_VIDEO_ADV_DEBUG 370 static int cx18_g_register(struct file *file, void *fh, 371 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 reg->size = 4; 380 reg->val = cx18_read_enc(cx, reg->reg); 381 return 0; 382 } 383 384 static int cx18_s_register(struct file *file, void *fh, 385 const struct v4l2_dbg_register *reg) 386 { 387 struct cx18 *cx = fh2id(fh)->cx; 388 389 if (reg->reg & 0x3) 390 return -EINVAL; 391 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 392 return -EINVAL; 393 cx18_write_enc(cx, reg->val, reg->reg); 394 return 0; 395 } 396 #endif 397 398 static int cx18_querycap(struct file *file, void *fh, 399 struct v4l2_capability *vcap) 400 { 401 struct cx18_open_id *id = fh2id(fh); 402 struct cx18_stream *s = video_drvdata(file); 403 struct cx18 *cx = id->cx; 404 405 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 406 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); 407 snprintf(vcap->bus_info, sizeof(vcap->bus_info), 408 "PCI:%s", pci_name(cx->pci_dev)); 409 vcap->capabilities = cx->v4l2_cap; /* capabilities */ 410 vcap->device_caps = s->v4l2_dev_caps; /* device capabilities */ 411 vcap->capabilities |= V4L2_CAP_DEVICE_CAPS; 412 return 0; 413 } 414 415 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 416 { 417 struct cx18 *cx = fh2id(fh)->cx; 418 419 return cx18_get_audio_input(cx, vin->index, vin); 420 } 421 422 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 423 { 424 struct cx18 *cx = fh2id(fh)->cx; 425 426 vin->index = cx->audio_input; 427 return cx18_get_audio_input(cx, vin->index, vin); 428 } 429 430 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 431 { 432 struct cx18 *cx = fh2id(fh)->cx; 433 434 if (vout->index >= cx->nof_audio_inputs) 435 return -EINVAL; 436 cx->audio_input = vout->index; 437 cx18_audio_set_io(cx); 438 return 0; 439 } 440 441 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 442 { 443 struct cx18 *cx = fh2id(fh)->cx; 444 445 /* set it to defaults from our table */ 446 return cx18_get_input(cx, vin->index, vin); 447 } 448 449 static int cx18_cropcap(struct file *file, void *fh, 450 struct v4l2_cropcap *cropcap) 451 { 452 struct cx18 *cx = fh2id(fh)->cx; 453 454 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 455 return -EINVAL; 456 cropcap->pixelaspect.numerator = cx->is_50hz ? 54 : 11; 457 cropcap->pixelaspect.denominator = cx->is_50hz ? 59 : 10; 458 return 0; 459 } 460 461 static int cx18_g_selection(struct file *file, void *fh, 462 struct v4l2_selection *sel) 463 { 464 struct cx18 *cx = fh2id(fh)->cx; 465 466 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 467 return -EINVAL; 468 switch (sel->target) { 469 case V4L2_SEL_TGT_CROP_BOUNDS: 470 case V4L2_SEL_TGT_CROP_DEFAULT: 471 sel->r.top = sel->r.left = 0; 472 sel->r.width = 720; 473 sel->r.height = cx->is_50hz ? 576 : 480; 474 break; 475 default: 476 return -EINVAL; 477 } 478 return 0; 479 } 480 481 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 482 struct v4l2_fmtdesc *fmt) 483 { 484 static const struct v4l2_fmtdesc formats[] = { 485 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 486 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } 487 }, 488 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, 489 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } 490 }, 491 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 492 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } 493 }, 494 }; 495 496 if (fmt->index > ARRAY_SIZE(formats) - 1) 497 return -EINVAL; 498 *fmt = formats[fmt->index]; 499 return 0; 500 } 501 502 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 503 { 504 struct cx18 *cx = fh2id(fh)->cx; 505 506 *i = cx->active_input; 507 return 0; 508 } 509 510 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 511 { 512 struct cx18_open_id *id = fh2id(fh); 513 struct cx18 *cx = id->cx; 514 v4l2_std_id std = V4L2_STD_ALL; 515 const struct cx18_card_video_input *card_input = 516 cx->card->video_inputs + inp; 517 518 if (inp >= cx->nof_inputs) 519 return -EINVAL; 520 521 if (inp == cx->active_input) { 522 CX18_DEBUG_INFO("Input unchanged\n"); 523 return 0; 524 } 525 526 CX18_DEBUG_INFO("Changing input from %d to %d\n", 527 cx->active_input, inp); 528 529 cx->active_input = inp; 530 /* Set the audio input to whatever is appropriate for the input type. */ 531 cx->audio_input = cx->card->video_inputs[inp].audio_index; 532 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 533 std = cx->tuner_std; 534 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 535 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 536 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 537 538 /* prevent others from messing with the streams until 539 we're finished changing inputs. */ 540 cx18_mute(cx); 541 cx18_video_set_io(cx); 542 cx18_audio_set_io(cx); 543 cx18_unmute(cx); 544 return 0; 545 } 546 547 static int cx18_g_frequency(struct file *file, void *fh, 548 struct v4l2_frequency *vf) 549 { 550 struct cx18 *cx = fh2id(fh)->cx; 551 552 if (vf->tuner != 0) 553 return -EINVAL; 554 555 cx18_call_all(cx, tuner, g_frequency, vf); 556 return 0; 557 } 558 559 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 560 { 561 struct cx18_open_id *id = fh2id(fh); 562 struct cx18 *cx = id->cx; 563 564 if (vf->tuner != 0) 565 return -EINVAL; 566 567 cx18_mute(cx); 568 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 569 cx18_call_all(cx, tuner, s_frequency, vf); 570 cx18_unmute(cx); 571 return 0; 572 } 573 574 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 575 { 576 struct cx18 *cx = fh2id(fh)->cx; 577 578 *std = cx->std; 579 return 0; 580 } 581 582 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 583 { 584 struct cx18_open_id *id = fh2id(fh); 585 struct cx18 *cx = id->cx; 586 587 if ((std & V4L2_STD_ALL) == 0) 588 return -EINVAL; 589 590 if (std == cx->std) 591 return 0; 592 593 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 594 atomic_read(&cx->ana_capturing) > 0) { 595 /* Switching standard would turn off the radio or mess 596 with already running streams, prevent that by 597 returning EBUSY. */ 598 return -EBUSY; 599 } 600 601 cx->std = std; 602 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 603 cx->is_50hz = !cx->is_60hz; 604 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 605 cx->cxhdl.width = 720; 606 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 607 cx->vbi.count = cx->is_50hz ? 18 : 12; 608 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 609 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 610 CX18_DEBUG_INFO("Switching standard to %llx.\n", 611 (unsigned long long) cx->std); 612 613 /* Tuner */ 614 cx18_call_all(cx, video, s_std, cx->std); 615 return 0; 616 } 617 618 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 619 { 620 struct cx18_open_id *id = fh2id(fh); 621 struct cx18 *cx = id->cx; 622 623 if (vt->index != 0) 624 return -EINVAL; 625 626 cx18_call_all(cx, tuner, s_tuner, vt); 627 return 0; 628 } 629 630 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 631 { 632 struct cx18 *cx = fh2id(fh)->cx; 633 634 if (vt->index != 0) 635 return -EINVAL; 636 637 cx18_call_all(cx, tuner, g_tuner, vt); 638 639 if (vt->type == V4L2_TUNER_RADIO) 640 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 641 else 642 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 643 return 0; 644 } 645 646 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 647 struct v4l2_sliced_vbi_cap *cap) 648 { 649 struct cx18 *cx = fh2id(fh)->cx; 650 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 651 int f, l; 652 653 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 654 return -EINVAL; 655 656 cap->service_set = 0; 657 for (f = 0; f < 2; f++) { 658 for (l = 0; l < 24; l++) { 659 if (valid_service_line(f, l, cx->is_50hz)) { 660 /* 661 * We can find all v4l2 supported vbi services 662 * for the standard, on a valid line for the std 663 */ 664 cap->service_lines[f][l] = set; 665 cap->service_set |= set; 666 } else 667 cap->service_lines[f][l] = 0; 668 } 669 } 670 for (f = 0; f < 3; f++) 671 cap->reserved[f] = 0; 672 return 0; 673 } 674 675 static int _cx18_process_idx_data(struct cx18_buffer *buf, 676 struct v4l2_enc_idx *idx) 677 { 678 int consumed, remaining; 679 struct v4l2_enc_idx_entry *e_idx; 680 struct cx18_enc_idx_entry *e_buf; 681 682 /* Frame type lookup: 1=I, 2=P, 4=B */ 683 const int mapping[8] = { 684 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 685 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 686 }; 687 688 /* 689 * Assumption here is that a buf holds an integral number of 690 * struct cx18_enc_idx_entry objects and is properly aligned. 691 * This is enforced by the module options on IDX buffer sizes. 692 */ 693 remaining = buf->bytesused - buf->readpos; 694 consumed = 0; 695 e_idx = &idx->entry[idx->entries]; 696 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 697 698 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 699 idx->entries < V4L2_ENC_IDX_ENTRIES) { 700 701 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 702 | le32_to_cpu(e_buf->offset_low); 703 704 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 705 | le32_to_cpu(e_buf->pts_low); 706 707 e_idx->length = le32_to_cpu(e_buf->length); 708 709 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 710 711 e_idx->reserved[0] = 0; 712 e_idx->reserved[1] = 0; 713 714 idx->entries++; 715 e_idx = &idx->entry[idx->entries]; 716 e_buf++; 717 718 remaining -= sizeof(struct cx18_enc_idx_entry); 719 consumed += sizeof(struct cx18_enc_idx_entry); 720 } 721 722 /* Swallow any partial entries at the end, if there are any */ 723 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 724 consumed += remaining; 725 726 buf->readpos += consumed; 727 return consumed; 728 } 729 730 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 731 struct v4l2_enc_idx *idx) 732 { 733 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 734 return -EINVAL; 735 736 if (mdl->curr_buf == NULL) 737 mdl->curr_buf = list_first_entry(&mdl->buf_list, 738 struct cx18_buffer, list); 739 740 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 741 /* 742 * For some reason we've exhausted the buffers, but the MDL 743 * object still said some data was unread. 744 * Fix that and bail out. 745 */ 746 mdl->readpos = mdl->bytesused; 747 return 0; 748 } 749 750 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 751 752 /* Skip any empty buffers in the MDL */ 753 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 754 continue; 755 756 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 757 758 /* exit when MDL drained or request satisfied */ 759 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 760 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 761 mdl->readpos >= mdl->bytesused) 762 break; 763 } 764 return 0; 765 } 766 767 static int cx18_g_enc_index(struct file *file, void *fh, 768 struct v4l2_enc_idx *idx) 769 { 770 struct cx18 *cx = fh2id(fh)->cx; 771 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 772 s32 tmp; 773 struct cx18_mdl *mdl; 774 775 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 776 return -EINVAL; 777 778 /* Compute the best case number of entries we can buffer */ 779 tmp = s->buffers - 780 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 781 if (tmp <= 0) 782 tmp = 1; 783 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 784 785 /* Fill out the header of the return structure */ 786 idx->entries = 0; 787 idx->entries_cap = tmp; 788 memset(idx->reserved, 0, sizeof(idx->reserved)); 789 790 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 791 do { 792 mdl = cx18_dequeue(s, &s->q_full); 793 if (mdl == NULL) /* No more IDX data right now */ 794 break; 795 796 /* Extract the Index entry data from the MDL and buffers */ 797 cx18_process_idx_data(s, mdl, idx); 798 if (mdl->readpos < mdl->bytesused) { 799 /* We finished with data remaining, push the MDL back */ 800 cx18_push(s, mdl, &s->q_full); 801 break; 802 } 803 804 /* We drained this MDL, schedule it to go to the firmware */ 805 cx18_enqueue(s, mdl, &s->q_free); 806 807 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 808 809 /* Tell the work handler to send free IDX MDLs to the firmware */ 810 cx18_stream_load_fw_queue(s); 811 return 0; 812 } 813 814 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 815 { 816 struct videobuf_queue *q = NULL; 817 struct cx18 *cx = id->cx; 818 struct cx18_stream *s = &cx->streams[id->type]; 819 820 switch (s->vb_type) { 821 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 822 q = &s->vbuf_q; 823 break; 824 case V4L2_BUF_TYPE_VBI_CAPTURE: 825 break; 826 default: 827 break; 828 } 829 return q; 830 } 831 832 static int cx18_streamon(struct file *file, void *priv, 833 enum v4l2_buf_type type) 834 { 835 struct cx18_open_id *id = file->private_data; 836 struct cx18 *cx = id->cx; 837 struct cx18_stream *s = &cx->streams[id->type]; 838 839 /* Start the hardware only if we're the video device */ 840 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 841 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 842 return -EINVAL; 843 844 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 845 return -EINVAL; 846 847 /* Establish a buffer timeout */ 848 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 849 850 return videobuf_streamon(cx18_vb_queue(id)); 851 } 852 853 static int cx18_streamoff(struct file *file, void *priv, 854 enum v4l2_buf_type type) 855 { 856 struct cx18_open_id *id = file->private_data; 857 struct cx18 *cx = id->cx; 858 struct cx18_stream *s = &cx->streams[id->type]; 859 860 /* Start the hardware only if we're the video device */ 861 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 862 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 863 return -EINVAL; 864 865 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 866 return -EINVAL; 867 868 return videobuf_streamoff(cx18_vb_queue(id)); 869 } 870 871 static int cx18_reqbufs(struct file *file, void *priv, 872 struct v4l2_requestbuffers *rb) 873 { 874 struct cx18_open_id *id = file->private_data; 875 struct cx18 *cx = id->cx; 876 struct cx18_stream *s = &cx->streams[id->type]; 877 878 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 879 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 880 return -EINVAL; 881 882 return videobuf_reqbufs(cx18_vb_queue(id), rb); 883 } 884 885 static int cx18_querybuf(struct file *file, void *priv, 886 struct v4l2_buffer *b) 887 { 888 struct cx18_open_id *id = file->private_data; 889 struct cx18 *cx = id->cx; 890 struct cx18_stream *s = &cx->streams[id->type]; 891 892 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 893 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 894 return -EINVAL; 895 896 return videobuf_querybuf(cx18_vb_queue(id), b); 897 } 898 899 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 900 { 901 struct cx18_open_id *id = file->private_data; 902 struct cx18 *cx = id->cx; 903 struct cx18_stream *s = &cx->streams[id->type]; 904 905 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 906 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 907 return -EINVAL; 908 909 return videobuf_qbuf(cx18_vb_queue(id), b); 910 } 911 912 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 913 { 914 struct cx18_open_id *id = file->private_data; 915 struct cx18 *cx = id->cx; 916 struct cx18_stream *s = &cx->streams[id->type]; 917 918 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 919 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 920 return -EINVAL; 921 922 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 923 } 924 925 static int cx18_encoder_cmd(struct file *file, void *fh, 926 struct v4l2_encoder_cmd *enc) 927 { 928 struct cx18_open_id *id = fh2id(fh); 929 struct cx18 *cx = id->cx; 930 u32 h; 931 932 switch (enc->cmd) { 933 case V4L2_ENC_CMD_START: 934 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 935 enc->flags = 0; 936 return cx18_start_capture(id); 937 938 case V4L2_ENC_CMD_STOP: 939 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 940 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 941 cx18_stop_capture(id, 942 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 943 break; 944 945 case V4L2_ENC_CMD_PAUSE: 946 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 947 enc->flags = 0; 948 if (!atomic_read(&cx->ana_capturing)) 949 return -EPERM; 950 if (test_and_set_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 " 955 "V4L2_ENC_CMD_PAUSE\n"); 956 return -EBADFD; 957 } 958 cx18_mute(cx); 959 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 960 break; 961 962 case V4L2_ENC_CMD_RESUME: 963 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 964 enc->flags = 0; 965 if (!atomic_read(&cx->ana_capturing)) 966 return -EPERM; 967 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 968 return 0; 969 h = cx18_find_handle(cx); 970 if (h == CX18_INVALID_TASK_HANDLE) { 971 CX18_ERR("Can't find valid task handle for " 972 "V4L2_ENC_CMD_RESUME\n"); 973 return -EBADFD; 974 } 975 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 976 cx18_unmute(cx); 977 break; 978 979 default: 980 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 981 return -EINVAL; 982 } 983 return 0; 984 } 985 986 static int cx18_try_encoder_cmd(struct file *file, void *fh, 987 struct v4l2_encoder_cmd *enc) 988 { 989 struct cx18 *cx = fh2id(fh)->cx; 990 991 switch (enc->cmd) { 992 case V4L2_ENC_CMD_START: 993 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 994 enc->flags = 0; 995 break; 996 997 case V4L2_ENC_CMD_STOP: 998 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 999 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 1000 break; 1001 1002 case V4L2_ENC_CMD_PAUSE: 1003 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 1004 enc->flags = 0; 1005 break; 1006 1007 case V4L2_ENC_CMD_RESUME: 1008 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 1009 enc->flags = 0; 1010 break; 1011 1012 default: 1013 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 1014 return -EINVAL; 1015 } 1016 return 0; 1017 } 1018 1019 static int cx18_log_status(struct file *file, void *fh) 1020 { 1021 struct cx18 *cx = fh2id(fh)->cx; 1022 struct v4l2_input vidin; 1023 struct v4l2_audio audin; 1024 int i; 1025 1026 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1027 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1028 struct tveeprom tv; 1029 1030 cx18_read_eeprom(cx, &tv); 1031 } 1032 cx18_call_all(cx, core, log_status); 1033 cx18_get_input(cx, cx->active_input, &vidin); 1034 cx18_get_audio_input(cx, cx->audio_input, &audin); 1035 CX18_INFO("Video Input: %s\n", vidin.name); 1036 CX18_INFO("Audio Input: %s\n", audin.name); 1037 mutex_lock(&cx->gpio_lock); 1038 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1039 cx->gpio_dir, cx->gpio_val); 1040 mutex_unlock(&cx->gpio_lock); 1041 CX18_INFO("Tuner: %s\n", 1042 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1043 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1044 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1045 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1046 struct cx18_stream *s = &cx->streams[i]; 1047 1048 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1049 continue; 1050 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1051 s->name, s->s_flags, 1052 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1053 / s->buffers, 1054 (s->buffers * s->buf_size) / 1024, s->buffers); 1055 } 1056 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1057 (long long)cx->mpg_data_received, 1058 (long long)cx->vbi_data_inserted); 1059 return 0; 1060 } 1061 1062 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1063 unsigned int cmd, void *arg) 1064 { 1065 struct cx18 *cx = fh2id(fh)->cx; 1066 1067 switch (cmd) { 1068 case VIDIOC_INT_RESET: { 1069 u32 val = *(u32 *)arg; 1070 1071 if ((val == 0) || (val & 0x01)) 1072 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1073 (u32) CX18_GPIO_RESET_Z8F0811); 1074 break; 1075 } 1076 1077 default: 1078 return -ENOTTY; 1079 } 1080 return 0; 1081 } 1082 1083 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1084 .vidioc_querycap = cx18_querycap, 1085 .vidioc_s_audio = cx18_s_audio, 1086 .vidioc_g_audio = cx18_g_audio, 1087 .vidioc_enumaudio = cx18_enumaudio, 1088 .vidioc_enum_input = cx18_enum_input, 1089 .vidioc_cropcap = cx18_cropcap, 1090 .vidioc_g_selection = cx18_g_selection, 1091 .vidioc_g_input = cx18_g_input, 1092 .vidioc_s_input = cx18_s_input, 1093 .vidioc_g_frequency = cx18_g_frequency, 1094 .vidioc_s_frequency = cx18_s_frequency, 1095 .vidioc_s_tuner = cx18_s_tuner, 1096 .vidioc_g_tuner = cx18_g_tuner, 1097 .vidioc_g_enc_index = cx18_g_enc_index, 1098 .vidioc_g_std = cx18_g_std, 1099 .vidioc_s_std = cx18_s_std, 1100 .vidioc_log_status = cx18_log_status, 1101 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1102 .vidioc_encoder_cmd = cx18_encoder_cmd, 1103 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1104 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1105 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1106 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1107 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1108 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1109 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1110 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1111 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1112 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1113 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1114 #ifdef CONFIG_VIDEO_ADV_DEBUG 1115 .vidioc_g_register = cx18_g_register, 1116 .vidioc_s_register = cx18_s_register, 1117 #endif 1118 .vidioc_default = cx18_default, 1119 .vidioc_streamon = cx18_streamon, 1120 .vidioc_streamoff = cx18_streamoff, 1121 .vidioc_reqbufs = cx18_reqbufs, 1122 .vidioc_querybuf = cx18_querybuf, 1123 .vidioc_qbuf = cx18_qbuf, 1124 .vidioc_dqbuf = cx18_dqbuf, 1125 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1126 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1127 }; 1128 1129 void cx18_set_funcs(struct video_device *vdev) 1130 { 1131 vdev->ioctl_ops = &cx18_ioctl_ops; 1132 } 1133