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_mbus_framefmt mbus_fmt; 271 struct cx18_stream *s = &cx->streams[id->type]; 272 int ret; 273 int w, h; 274 275 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 276 if (ret) 277 return ret; 278 w = fmt->fmt.pix.width; 279 h = fmt->fmt.pix.height; 280 281 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 282 s->pixelformat == fmt->fmt.pix.pixelformat) 283 return 0; 284 285 if (atomic_read(&cx->ana_capturing) > 0) 286 return -EBUSY; 287 288 s->pixelformat = fmt->fmt.pix.pixelformat; 289 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 290 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ 291 if (s->pixelformat == V4L2_PIX_FMT_HM12) { 292 s->vb_bytes_per_frame = h * 720 * 3 / 2; 293 s->vb_bytes_per_line = 720; /* First plane */ 294 } else { 295 s->vb_bytes_per_frame = h * 720 * 2; 296 s->vb_bytes_per_line = 1440; /* Packed */ 297 } 298 299 mbus_fmt.width = cx->cxhdl.width = w; 300 mbus_fmt.height = cx->cxhdl.height = h; 301 mbus_fmt.code = MEDIA_BUS_FMT_FIXED; 302 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt); 303 return cx18_g_fmt_vid_cap(file, fh, fmt); 304 } 305 306 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 307 struct v4l2_format *fmt) 308 { 309 struct cx18_open_id *id = fh2id(fh); 310 struct cx18 *cx = id->cx; 311 int ret; 312 313 /* 314 * Changing the Encoder's Raw VBI parameters won't have any effect 315 * if any analog capture is ongoing 316 */ 317 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 318 return -EBUSY; 319 320 /* 321 * Set the digitizer registers for raw active VBI. 322 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 323 * calling conditions 324 */ 325 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 326 if (ret) 327 return ret; 328 329 /* Store our new v4l2 (non-)sliced VBI state */ 330 cx->vbi.sliced_in->service_set = 0; 331 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 332 333 return cx18_g_fmt_vbi_cap(file, fh, fmt); 334 } 335 336 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 337 struct v4l2_format *fmt) 338 { 339 struct cx18_open_id *id = fh2id(fh); 340 struct cx18 *cx = id->cx; 341 int ret; 342 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 343 344 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 345 346 /* 347 * Changing the Encoder's Raw VBI parameters won't have any effect 348 * if any analog capture is ongoing 349 */ 350 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 351 return -EBUSY; 352 353 /* 354 * Set the service_lines requested in the digitizer/slicer registers. 355 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 356 * passed in fmt->fmt.sliced under valid calling conditions 357 */ 358 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 359 if (ret) 360 return ret; 361 /* Store our current v4l2 sliced VBI settings */ 362 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 363 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 364 return 0; 365 } 366 367 #ifdef CONFIG_VIDEO_ADV_DEBUG 368 static int cx18_g_register(struct file *file, void *fh, 369 struct v4l2_dbg_register *reg) 370 { 371 struct cx18 *cx = fh2id(fh)->cx; 372 373 if (reg->reg & 0x3) 374 return -EINVAL; 375 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 376 return -EINVAL; 377 reg->size = 4; 378 reg->val = cx18_read_enc(cx, reg->reg); 379 return 0; 380 } 381 382 static int cx18_s_register(struct file *file, void *fh, 383 const struct v4l2_dbg_register *reg) 384 { 385 struct cx18 *cx = fh2id(fh)->cx; 386 387 if (reg->reg & 0x3) 388 return -EINVAL; 389 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 390 return -EINVAL; 391 cx18_write_enc(cx, reg->val, reg->reg); 392 return 0; 393 } 394 #endif 395 396 static int cx18_querycap(struct file *file, void *fh, 397 struct v4l2_capability *vcap) 398 { 399 struct cx18_open_id *id = fh2id(fh); 400 struct cx18_stream *s = video_drvdata(file); 401 struct cx18 *cx = id->cx; 402 403 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 404 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); 405 snprintf(vcap->bus_info, sizeof(vcap->bus_info), 406 "PCI:%s", pci_name(cx->pci_dev)); 407 vcap->capabilities = cx->v4l2_cap; /* capabilities */ 408 vcap->device_caps = s->v4l2_dev_caps; /* device capabilities */ 409 vcap->capabilities |= V4L2_CAP_DEVICE_CAPS; 410 return 0; 411 } 412 413 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 414 { 415 struct cx18 *cx = fh2id(fh)->cx; 416 417 return cx18_get_audio_input(cx, vin->index, vin); 418 } 419 420 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 421 { 422 struct cx18 *cx = fh2id(fh)->cx; 423 424 vin->index = cx->audio_input; 425 return cx18_get_audio_input(cx, vin->index, vin); 426 } 427 428 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 429 { 430 struct cx18 *cx = fh2id(fh)->cx; 431 432 if (vout->index >= cx->nof_audio_inputs) 433 return -EINVAL; 434 cx->audio_input = vout->index; 435 cx18_audio_set_io(cx); 436 return 0; 437 } 438 439 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 440 { 441 struct cx18 *cx = fh2id(fh)->cx; 442 443 /* set it to defaults from our table */ 444 return cx18_get_input(cx, vin->index, vin); 445 } 446 447 static int cx18_cropcap(struct file *file, void *fh, 448 struct v4l2_cropcap *cropcap) 449 { 450 struct cx18 *cx = fh2id(fh)->cx; 451 452 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 453 return -EINVAL; 454 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10; 455 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11; 456 return 0; 457 } 458 459 static int cx18_g_selection(struct file *file, void *fh, 460 struct v4l2_selection *sel) 461 { 462 struct cx18 *cx = fh2id(fh)->cx; 463 464 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 465 return -EINVAL; 466 switch (sel->target) { 467 case V4L2_SEL_TGT_CROP_BOUNDS: 468 case V4L2_SEL_TGT_CROP_DEFAULT: 469 sel->r.top = sel->r.left = 0; 470 sel->r.width = 720; 471 sel->r.height = cx->is_50hz ? 576 : 480; 472 break; 473 default: 474 return -EINVAL; 475 } 476 return 0; 477 } 478 479 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 480 struct v4l2_fmtdesc *fmt) 481 { 482 static const struct v4l2_fmtdesc formats[] = { 483 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 484 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } 485 }, 486 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, 487 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } 488 }, 489 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 490 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } 491 }, 492 }; 493 494 if (fmt->index > ARRAY_SIZE(formats) - 1) 495 return -EINVAL; 496 *fmt = formats[fmt->index]; 497 return 0; 498 } 499 500 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 501 { 502 struct cx18 *cx = fh2id(fh)->cx; 503 504 *i = cx->active_input; 505 return 0; 506 } 507 508 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 509 { 510 struct cx18_open_id *id = fh2id(fh); 511 struct cx18 *cx = id->cx; 512 v4l2_std_id std = V4L2_STD_ALL; 513 const struct cx18_card_video_input *card_input = 514 cx->card->video_inputs + inp; 515 516 if (inp >= cx->nof_inputs) 517 return -EINVAL; 518 519 if (inp == cx->active_input) { 520 CX18_DEBUG_INFO("Input unchanged\n"); 521 return 0; 522 } 523 524 CX18_DEBUG_INFO("Changing input from %d to %d\n", 525 cx->active_input, inp); 526 527 cx->active_input = inp; 528 /* Set the audio input to whatever is appropriate for the input type. */ 529 cx->audio_input = cx->card->video_inputs[inp].audio_index; 530 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER) 531 std = cx->tuner_std; 532 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std; 533 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std; 534 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std; 535 536 /* prevent others from messing with the streams until 537 we're finished changing inputs. */ 538 cx18_mute(cx); 539 cx18_video_set_io(cx); 540 cx18_audio_set_io(cx); 541 cx18_unmute(cx); 542 return 0; 543 } 544 545 static int cx18_g_frequency(struct file *file, void *fh, 546 struct v4l2_frequency *vf) 547 { 548 struct cx18 *cx = fh2id(fh)->cx; 549 550 if (vf->tuner != 0) 551 return -EINVAL; 552 553 cx18_call_all(cx, tuner, g_frequency, vf); 554 return 0; 555 } 556 557 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 558 { 559 struct cx18_open_id *id = fh2id(fh); 560 struct cx18 *cx = id->cx; 561 562 if (vf->tuner != 0) 563 return -EINVAL; 564 565 cx18_mute(cx); 566 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 567 cx18_call_all(cx, tuner, s_frequency, vf); 568 cx18_unmute(cx); 569 return 0; 570 } 571 572 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 573 { 574 struct cx18 *cx = fh2id(fh)->cx; 575 576 *std = cx->std; 577 return 0; 578 } 579 580 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 581 { 582 struct cx18_open_id *id = fh2id(fh); 583 struct cx18 *cx = id->cx; 584 585 if ((std & V4L2_STD_ALL) == 0) 586 return -EINVAL; 587 588 if (std == cx->std) 589 return 0; 590 591 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 592 atomic_read(&cx->ana_capturing) > 0) { 593 /* Switching standard would turn off the radio or mess 594 with already running streams, prevent that by 595 returning EBUSY. */ 596 return -EBUSY; 597 } 598 599 cx->std = std; 600 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 601 cx->is_50hz = !cx->is_60hz; 602 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 603 cx->cxhdl.width = 720; 604 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 605 cx->vbi.count = cx->is_50hz ? 18 : 12; 606 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 607 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 608 CX18_DEBUG_INFO("Switching standard to %llx.\n", 609 (unsigned long long) cx->std); 610 611 /* Tuner */ 612 cx18_call_all(cx, video, s_std, cx->std); 613 return 0; 614 } 615 616 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 617 { 618 struct cx18_open_id *id = fh2id(fh); 619 struct cx18 *cx = id->cx; 620 621 if (vt->index != 0) 622 return -EINVAL; 623 624 cx18_call_all(cx, tuner, s_tuner, vt); 625 return 0; 626 } 627 628 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 629 { 630 struct cx18 *cx = fh2id(fh)->cx; 631 632 if (vt->index != 0) 633 return -EINVAL; 634 635 cx18_call_all(cx, tuner, g_tuner, vt); 636 637 if (vt->type == V4L2_TUNER_RADIO) 638 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 639 else 640 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 641 return 0; 642 } 643 644 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 645 struct v4l2_sliced_vbi_cap *cap) 646 { 647 struct cx18 *cx = fh2id(fh)->cx; 648 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 649 int f, l; 650 651 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 652 return -EINVAL; 653 654 cap->service_set = 0; 655 for (f = 0; f < 2; f++) { 656 for (l = 0; l < 24; l++) { 657 if (valid_service_line(f, l, cx->is_50hz)) { 658 /* 659 * We can find all v4l2 supported vbi services 660 * for the standard, on a valid line for the std 661 */ 662 cap->service_lines[f][l] = set; 663 cap->service_set |= set; 664 } else 665 cap->service_lines[f][l] = 0; 666 } 667 } 668 for (f = 0; f < 3; f++) 669 cap->reserved[f] = 0; 670 return 0; 671 } 672 673 static int _cx18_process_idx_data(struct cx18_buffer *buf, 674 struct v4l2_enc_idx *idx) 675 { 676 int consumed, remaining; 677 struct v4l2_enc_idx_entry *e_idx; 678 struct cx18_enc_idx_entry *e_buf; 679 680 /* Frame type lookup: 1=I, 2=P, 4=B */ 681 const int mapping[8] = { 682 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 683 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 684 }; 685 686 /* 687 * Assumption here is that a buf holds an integral number of 688 * struct cx18_enc_idx_entry objects and is properly aligned. 689 * This is enforced by the module options on IDX buffer sizes. 690 */ 691 remaining = buf->bytesused - buf->readpos; 692 consumed = 0; 693 e_idx = &idx->entry[idx->entries]; 694 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 695 696 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 697 idx->entries < V4L2_ENC_IDX_ENTRIES) { 698 699 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 700 | le32_to_cpu(e_buf->offset_low); 701 702 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 703 | le32_to_cpu(e_buf->pts_low); 704 705 e_idx->length = le32_to_cpu(e_buf->length); 706 707 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 708 709 e_idx->reserved[0] = 0; 710 e_idx->reserved[1] = 0; 711 712 idx->entries++; 713 e_idx = &idx->entry[idx->entries]; 714 e_buf++; 715 716 remaining -= sizeof(struct cx18_enc_idx_entry); 717 consumed += sizeof(struct cx18_enc_idx_entry); 718 } 719 720 /* Swallow any partial entries at the end, if there are any */ 721 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 722 consumed += remaining; 723 724 buf->readpos += consumed; 725 return consumed; 726 } 727 728 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 729 struct v4l2_enc_idx *idx) 730 { 731 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 732 return -EINVAL; 733 734 if (mdl->curr_buf == NULL) 735 mdl->curr_buf = list_first_entry(&mdl->buf_list, 736 struct cx18_buffer, list); 737 738 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 739 /* 740 * For some reason we've exhausted the buffers, but the MDL 741 * object still said some data was unread. 742 * Fix that and bail out. 743 */ 744 mdl->readpos = mdl->bytesused; 745 return 0; 746 } 747 748 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 749 750 /* Skip any empty buffers in the MDL */ 751 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 752 continue; 753 754 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 755 756 /* exit when MDL drained or request satisfied */ 757 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 758 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 759 mdl->readpos >= mdl->bytesused) 760 break; 761 } 762 return 0; 763 } 764 765 static int cx18_g_enc_index(struct file *file, void *fh, 766 struct v4l2_enc_idx *idx) 767 { 768 struct cx18 *cx = fh2id(fh)->cx; 769 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 770 s32 tmp; 771 struct cx18_mdl *mdl; 772 773 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 774 return -EINVAL; 775 776 /* Compute the best case number of entries we can buffer */ 777 tmp = s->buffers - 778 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 779 if (tmp <= 0) 780 tmp = 1; 781 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 782 783 /* Fill out the header of the return structure */ 784 idx->entries = 0; 785 idx->entries_cap = tmp; 786 memset(idx->reserved, 0, sizeof(idx->reserved)); 787 788 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 789 do { 790 mdl = cx18_dequeue(s, &s->q_full); 791 if (mdl == NULL) /* No more IDX data right now */ 792 break; 793 794 /* Extract the Index entry data from the MDL and buffers */ 795 cx18_process_idx_data(s, mdl, idx); 796 if (mdl->readpos < mdl->bytesused) { 797 /* We finished with data remaining, push the MDL back */ 798 cx18_push(s, mdl, &s->q_full); 799 break; 800 } 801 802 /* We drained this MDL, schedule it to go to the firmware */ 803 cx18_enqueue(s, mdl, &s->q_free); 804 805 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 806 807 /* Tell the work handler to send free IDX MDLs to the firmware */ 808 cx18_stream_load_fw_queue(s); 809 return 0; 810 } 811 812 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 813 { 814 struct videobuf_queue *q = NULL; 815 struct cx18 *cx = id->cx; 816 struct cx18_stream *s = &cx->streams[id->type]; 817 818 switch (s->vb_type) { 819 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 820 q = &s->vbuf_q; 821 break; 822 case V4L2_BUF_TYPE_VBI_CAPTURE: 823 break; 824 default: 825 break; 826 } 827 return q; 828 } 829 830 static int cx18_streamon(struct file *file, void *priv, 831 enum v4l2_buf_type type) 832 { 833 struct cx18_open_id *id = file->private_data; 834 struct cx18 *cx = id->cx; 835 struct cx18_stream *s = &cx->streams[id->type]; 836 837 /* Start the hardware only if we're the video device */ 838 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 839 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 840 return -EINVAL; 841 842 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 843 return -EINVAL; 844 845 /* Establish a buffer timeout */ 846 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 847 848 return videobuf_streamon(cx18_vb_queue(id)); 849 } 850 851 static int cx18_streamoff(struct file *file, void *priv, 852 enum v4l2_buf_type type) 853 { 854 struct cx18_open_id *id = file->private_data; 855 struct cx18 *cx = id->cx; 856 struct cx18_stream *s = &cx->streams[id->type]; 857 858 /* Start the hardware only if we're the video device */ 859 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 860 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 861 return -EINVAL; 862 863 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 864 return -EINVAL; 865 866 return videobuf_streamoff(cx18_vb_queue(id)); 867 } 868 869 static int cx18_reqbufs(struct file *file, void *priv, 870 struct v4l2_requestbuffers *rb) 871 { 872 struct cx18_open_id *id = file->private_data; 873 struct cx18 *cx = id->cx; 874 struct cx18_stream *s = &cx->streams[id->type]; 875 876 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 877 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 878 return -EINVAL; 879 880 return videobuf_reqbufs(cx18_vb_queue(id), rb); 881 } 882 883 static int cx18_querybuf(struct file *file, void *priv, 884 struct v4l2_buffer *b) 885 { 886 struct cx18_open_id *id = file->private_data; 887 struct cx18 *cx = id->cx; 888 struct cx18_stream *s = &cx->streams[id->type]; 889 890 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 891 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 892 return -EINVAL; 893 894 return videobuf_querybuf(cx18_vb_queue(id), b); 895 } 896 897 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 898 { 899 struct cx18_open_id *id = file->private_data; 900 struct cx18 *cx = id->cx; 901 struct cx18_stream *s = &cx->streams[id->type]; 902 903 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 904 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 905 return -EINVAL; 906 907 return videobuf_qbuf(cx18_vb_queue(id), b); 908 } 909 910 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 911 { 912 struct cx18_open_id *id = file->private_data; 913 struct cx18 *cx = id->cx; 914 struct cx18_stream *s = &cx->streams[id->type]; 915 916 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 917 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 918 return -EINVAL; 919 920 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 921 } 922 923 static int cx18_encoder_cmd(struct file *file, void *fh, 924 struct v4l2_encoder_cmd *enc) 925 { 926 struct cx18_open_id *id = fh2id(fh); 927 struct cx18 *cx = id->cx; 928 u32 h; 929 930 switch (enc->cmd) { 931 case V4L2_ENC_CMD_START: 932 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 933 enc->flags = 0; 934 return cx18_start_capture(id); 935 936 case V4L2_ENC_CMD_STOP: 937 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 938 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 939 cx18_stop_capture(id, 940 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 941 break; 942 943 case V4L2_ENC_CMD_PAUSE: 944 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 945 enc->flags = 0; 946 if (!atomic_read(&cx->ana_capturing)) 947 return -EPERM; 948 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 949 return 0; 950 h = cx18_find_handle(cx); 951 if (h == CX18_INVALID_TASK_HANDLE) { 952 CX18_ERR("Can't find valid task handle for " 953 "V4L2_ENC_CMD_PAUSE\n"); 954 return -EBADFD; 955 } 956 cx18_mute(cx); 957 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 958 break; 959 960 case V4L2_ENC_CMD_RESUME: 961 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 962 enc->flags = 0; 963 if (!atomic_read(&cx->ana_capturing)) 964 return -EPERM; 965 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 966 return 0; 967 h = cx18_find_handle(cx); 968 if (h == CX18_INVALID_TASK_HANDLE) { 969 CX18_ERR("Can't find valid task handle for " 970 "V4L2_ENC_CMD_RESUME\n"); 971 return -EBADFD; 972 } 973 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h); 974 cx18_unmute(cx); 975 break; 976 977 default: 978 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 979 return -EINVAL; 980 } 981 return 0; 982 } 983 984 static int cx18_try_encoder_cmd(struct file *file, void *fh, 985 struct v4l2_encoder_cmd *enc) 986 { 987 struct cx18 *cx = fh2id(fh)->cx; 988 989 switch (enc->cmd) { 990 case V4L2_ENC_CMD_START: 991 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 992 enc->flags = 0; 993 break; 994 995 case V4L2_ENC_CMD_STOP: 996 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 997 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 998 break; 999 1000 case V4L2_ENC_CMD_PAUSE: 1001 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 1002 enc->flags = 0; 1003 break; 1004 1005 case V4L2_ENC_CMD_RESUME: 1006 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 1007 enc->flags = 0; 1008 break; 1009 1010 default: 1011 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); 1012 return -EINVAL; 1013 } 1014 return 0; 1015 } 1016 1017 static int cx18_log_status(struct file *file, void *fh) 1018 { 1019 struct cx18 *cx = fh2id(fh)->cx; 1020 struct v4l2_input vidin; 1021 struct v4l2_audio audin; 1022 int i; 1023 1024 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name); 1025 if (cx->hw_flags & CX18_HW_TVEEPROM) { 1026 struct tveeprom tv; 1027 1028 cx18_read_eeprom(cx, &tv); 1029 } 1030 cx18_call_all(cx, core, log_status); 1031 cx18_get_input(cx, cx->active_input, &vidin); 1032 cx18_get_audio_input(cx, cx->audio_input, &audin); 1033 CX18_INFO("Video Input: %s\n", vidin.name); 1034 CX18_INFO("Audio Input: %s\n", audin.name); 1035 mutex_lock(&cx->gpio_lock); 1036 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", 1037 cx->gpio_dir, cx->gpio_val); 1038 mutex_unlock(&cx->gpio_lock); 1039 CX18_INFO("Tuner: %s\n", 1040 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); 1041 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name); 1042 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); 1043 for (i = 0; i < CX18_MAX_STREAMS; i++) { 1044 struct cx18_stream *s = &cx->streams[i]; 1045 1046 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0) 1047 continue; 1048 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", 1049 s->name, s->s_flags, 1050 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 1051 / s->buffers, 1052 (s->buffers * s->buf_size) / 1024, s->buffers); 1053 } 1054 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", 1055 (long long)cx->mpg_data_received, 1056 (long long)cx->vbi_data_inserted); 1057 return 0; 1058 } 1059 1060 static long cx18_default(struct file *file, void *fh, bool valid_prio, 1061 unsigned int cmd, void *arg) 1062 { 1063 struct cx18 *cx = fh2id(fh)->cx; 1064 1065 switch (cmd) { 1066 case VIDIOC_INT_RESET: { 1067 u32 val = *(u32 *)arg; 1068 1069 if ((val == 0) || (val & 0x01)) 1070 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset, 1071 (u32) CX18_GPIO_RESET_Z8F0811); 1072 break; 1073 } 1074 1075 default: 1076 return -ENOTTY; 1077 } 1078 return 0; 1079 } 1080 1081 static const struct v4l2_ioctl_ops cx18_ioctl_ops = { 1082 .vidioc_querycap = cx18_querycap, 1083 .vidioc_s_audio = cx18_s_audio, 1084 .vidioc_g_audio = cx18_g_audio, 1085 .vidioc_enumaudio = cx18_enumaudio, 1086 .vidioc_enum_input = cx18_enum_input, 1087 .vidioc_cropcap = cx18_cropcap, 1088 .vidioc_g_selection = cx18_g_selection, 1089 .vidioc_g_input = cx18_g_input, 1090 .vidioc_s_input = cx18_s_input, 1091 .vidioc_g_frequency = cx18_g_frequency, 1092 .vidioc_s_frequency = cx18_s_frequency, 1093 .vidioc_s_tuner = cx18_s_tuner, 1094 .vidioc_g_tuner = cx18_g_tuner, 1095 .vidioc_g_enc_index = cx18_g_enc_index, 1096 .vidioc_g_std = cx18_g_std, 1097 .vidioc_s_std = cx18_s_std, 1098 .vidioc_log_status = cx18_log_status, 1099 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1100 .vidioc_encoder_cmd = cx18_encoder_cmd, 1101 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1102 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1103 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1104 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1105 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1106 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1107 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1108 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1109 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1110 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1111 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1112 #ifdef CONFIG_VIDEO_ADV_DEBUG 1113 .vidioc_g_register = cx18_g_register, 1114 .vidioc_s_register = cx18_s_register, 1115 #endif 1116 .vidioc_default = cx18_default, 1117 .vidioc_streamon = cx18_streamon, 1118 .vidioc_streamoff = cx18_streamoff, 1119 .vidioc_reqbufs = cx18_reqbufs, 1120 .vidioc_querybuf = cx18_querybuf, 1121 .vidioc_qbuf = cx18_qbuf, 1122 .vidioc_dqbuf = cx18_dqbuf, 1123 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1124 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1125 }; 1126 1127 void cx18_set_funcs(struct video_device *vdev) 1128 { 1129 vdev->ioctl_ops = &cx18_ioctl_ops; 1130 } 1131