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 43 u16 cx18_service2vbi(int type) 44 { 45 switch (type) { 46 case V4L2_SLICED_TELETEXT_B: 47 return CX18_SLICED_TYPE_TELETEXT_B; 48 case V4L2_SLICED_CAPTION_525: 49 return CX18_SLICED_TYPE_CAPTION_525; 50 case V4L2_SLICED_WSS_625: 51 return CX18_SLICED_TYPE_WSS_625; 52 case V4L2_SLICED_VPS: 53 return CX18_SLICED_TYPE_VPS; 54 default: 55 return 0; 56 } 57 } 58 59 /* Check if VBI services are allowed on the (field, line) for the video std */ 60 static int valid_service_line(int field, int line, int is_pal) 61 { 62 return (is_pal && line >= 6 && 63 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) || 64 (!is_pal && line >= 10 && line < 22); 65 } 66 67 /* 68 * For a (field, line, std) and inbound potential set of services for that line, 69 * return the first valid service of those passed in the incoming set for that 70 * line in priority order: 71 * CC, VPS, or WSS over TELETEXT for well known lines 72 * TELETEXT, before VPS, before CC, before WSS, for other lines 73 */ 74 static u16 select_service_from_set(int field, int line, u16 set, int is_pal) 75 { 76 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525); 77 int i; 78 79 set = set & valid_set; 80 if (set == 0 || !valid_service_line(field, line, is_pal)) 81 return 0; 82 if (!is_pal) { 83 if (line == 21 && (set & V4L2_SLICED_CAPTION_525)) 84 return V4L2_SLICED_CAPTION_525; 85 } else { 86 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS)) 87 return V4L2_SLICED_VPS; 88 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625)) 89 return V4L2_SLICED_WSS_625; 90 if (line == 23) 91 return 0; 92 } 93 for (i = 0; i < 32; i++) { 94 if ((1 << i) & set) 95 return 1 << i; 96 } 97 return 0; 98 } 99 100 /* 101 * Expand the service_set of *fmt into valid service_lines for the std, 102 * and clear the passed in fmt->service_set 103 */ 104 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 105 { 106 u16 set = fmt->service_set; 107 int f, l; 108 109 fmt->service_set = 0; 110 for (f = 0; f < 2; f++) { 111 for (l = 0; l < 24; l++) 112 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal); 113 } 114 } 115 116 /* 117 * Sanitize the service_lines in *fmt per the video std, and return 1 118 * if any service_line is left as valid after santization 119 */ 120 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) 121 { 122 int f, l; 123 u16 set = 0; 124 125 for (f = 0; f < 2; f++) { 126 for (l = 0; l < 24; l++) { 127 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); 128 set |= fmt->service_lines[f][l]; 129 } 130 } 131 return set != 0; 132 } 133 134 /* Compute the service_set from the assumed valid service_lines of *fmt */ 135 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) 136 { 137 int f, l; 138 u16 set = 0; 139 140 for (f = 0; f < 2; f++) { 141 for (l = 0; l < 24; l++) 142 set |= fmt->service_lines[f][l]; 143 } 144 return set; 145 } 146 147 static int cx18_g_fmt_vid_cap(struct file *file, void *fh, 148 struct v4l2_format *fmt) 149 { 150 struct cx18_open_id *id = fh2id(fh); 151 struct cx18 *cx = id->cx; 152 struct cx18_stream *s = &cx->streams[id->type]; 153 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 154 155 pixfmt->width = cx->cxhdl.width; 156 pixfmt->height = cx->cxhdl.height; 157 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; 158 pixfmt->field = V4L2_FIELD_INTERLACED; 159 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 160 pixfmt->pixelformat = s->pixelformat; 161 pixfmt->sizeimage = s->vb_bytes_per_frame; 162 pixfmt->bytesperline = s->vb_bytes_per_line; 163 } else { 164 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; 165 pixfmt->sizeimage = 128 * 1024; 166 pixfmt->bytesperline = 0; 167 } 168 return 0; 169 } 170 171 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, 172 struct v4l2_format *fmt) 173 { 174 struct cx18 *cx = fh2id(fh)->cx; 175 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; 176 177 vbifmt->sampling_rate = 27000000; 178 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */ 179 vbifmt->samples_per_line = vbi_active_samples - 4; 180 vbifmt->sample_format = V4L2_PIX_FMT_GREY; 181 vbifmt->start[0] = cx->vbi.start[0]; 182 vbifmt->start[1] = cx->vbi.start[1]; 183 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; 184 vbifmt->flags = 0; 185 vbifmt->reserved[0] = 0; 186 vbifmt->reserved[1] = 0; 187 return 0; 188 } 189 190 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, 191 struct v4l2_format *fmt) 192 { 193 struct cx18 *cx = fh2id(fh)->cx; 194 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 195 196 /* sane, V4L2 spec compliant, defaults */ 197 vbifmt->reserved[0] = 0; 198 vbifmt->reserved[1] = 0; 199 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 200 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); 201 vbifmt->service_set = 0; 202 203 /* 204 * Fetch the configured service_lines and total service_set from the 205 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in 206 * fmt->fmt.sliced under valid calling conditions 207 */ 208 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced)) 209 return -EINVAL; 210 211 vbifmt->service_set = cx18_get_service_set(vbifmt); 212 return 0; 213 } 214 215 static int cx18_try_fmt_vid_cap(struct file *file, void *fh, 216 struct v4l2_format *fmt) 217 { 218 struct cx18_open_id *id = fh2id(fh); 219 struct cx18 *cx = id->cx; 220 int w = fmt->fmt.pix.width; 221 int h = fmt->fmt.pix.height; 222 int min_h = 2; 223 224 w = min(w, 720); 225 w = max(w, 2); 226 if (id->type == CX18_ENC_STREAM_TYPE_YUV) { 227 /* YUV height must be a multiple of 32 */ 228 h &= ~0x1f; 229 min_h = 32; 230 } 231 h = min(h, cx->is_50hz ? 576 : 480); 232 h = max(h, min_h); 233 234 fmt->fmt.pix.width = w; 235 fmt->fmt.pix.height = h; 236 return 0; 237 } 238 239 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, 240 struct v4l2_format *fmt) 241 { 242 return cx18_g_fmt_vbi_cap(file, fh, fmt); 243 } 244 245 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, 246 struct v4l2_format *fmt) 247 { 248 struct cx18 *cx = fh2id(fh)->cx; 249 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 250 251 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; 252 vbifmt->reserved[0] = 0; 253 vbifmt->reserved[1] = 0; 254 255 /* If given a service set, expand it validly & clear passed in set */ 256 if (vbifmt->service_set) 257 cx18_expand_service_set(vbifmt, cx->is_50hz); 258 /* Sanitize the service_lines, and compute the new set if any valid */ 259 if (check_service_set(vbifmt, cx->is_50hz)) 260 vbifmt->service_set = cx18_get_service_set(vbifmt); 261 return 0; 262 } 263 264 static int cx18_s_fmt_vid_cap(struct file *file, void *fh, 265 struct v4l2_format *fmt) 266 { 267 struct cx18_open_id *id = fh2id(fh); 268 struct cx18 *cx = id->cx; 269 struct v4l2_mbus_framefmt mbus_fmt; 270 struct cx18_stream *s = &cx->streams[id->type]; 271 int ret; 272 int w, h; 273 274 ret = cx18_try_fmt_vid_cap(file, fh, fmt); 275 if (ret) 276 return ret; 277 w = fmt->fmt.pix.width; 278 h = fmt->fmt.pix.height; 279 280 if (cx->cxhdl.width == w && cx->cxhdl.height == h && 281 s->pixelformat == fmt->fmt.pix.pixelformat) 282 return 0; 283 284 if (atomic_read(&cx->ana_capturing) > 0) 285 return -EBUSY; 286 287 s->pixelformat = fmt->fmt.pix.pixelformat; 288 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) 289 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ 290 if (s->pixelformat == V4L2_PIX_FMT_HM12) { 291 s->vb_bytes_per_frame = h * 720 * 3 / 2; 292 s->vb_bytes_per_line = 720; /* First plane */ 293 } else { 294 s->vb_bytes_per_frame = h * 720 * 2; 295 s->vb_bytes_per_line = 1440; /* Packed */ 296 } 297 298 mbus_fmt.width = cx->cxhdl.width = w; 299 mbus_fmt.height = cx->cxhdl.height = h; 300 mbus_fmt.code = MEDIA_BUS_FMT_FIXED; 301 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt); 302 return cx18_g_fmt_vid_cap(file, fh, fmt); 303 } 304 305 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, 306 struct v4l2_format *fmt) 307 { 308 struct cx18_open_id *id = fh2id(fh); 309 struct cx18 *cx = id->cx; 310 int ret; 311 312 /* 313 * Changing the Encoder's Raw VBI parameters won't have any effect 314 * if any analog capture is ongoing 315 */ 316 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 317 return -EBUSY; 318 319 /* 320 * Set the digitizer registers for raw active VBI. 321 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid 322 * calling conditions 323 */ 324 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi); 325 if (ret) 326 return ret; 327 328 /* Store our new v4l2 (non-)sliced VBI state */ 329 cx->vbi.sliced_in->service_set = 0; 330 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; 331 332 return cx18_g_fmt_vbi_cap(file, fh, fmt); 333 } 334 335 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, 336 struct v4l2_format *fmt) 337 { 338 struct cx18_open_id *id = fh2id(fh); 339 struct cx18 *cx = id->cx; 340 int ret; 341 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; 342 343 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt); 344 345 /* 346 * Changing the Encoder's Raw VBI parameters won't have any effect 347 * if any analog capture is ongoing 348 */ 349 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0) 350 return -EBUSY; 351 352 /* 353 * Set the service_lines requested in the digitizer/slicer registers. 354 * Note, cx18_av_vbi() wipes some "impossible" service lines in the 355 * passed in fmt->fmt.sliced under valid calling conditions 356 */ 357 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced); 358 if (ret) 359 return ret; 360 /* Store our current v4l2 sliced VBI settings */ 361 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; 362 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); 363 return 0; 364 } 365 366 #ifdef CONFIG_VIDEO_ADV_DEBUG 367 static int cx18_g_register(struct file *file, void *fh, 368 struct v4l2_dbg_register *reg) 369 { 370 struct cx18 *cx = fh2id(fh)->cx; 371 372 if (reg->reg & 0x3) 373 return -EINVAL; 374 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 375 return -EINVAL; 376 reg->size = 4; 377 reg->val = cx18_read_enc(cx, reg->reg); 378 return 0; 379 } 380 381 static int cx18_s_register(struct file *file, void *fh, 382 const struct v4l2_dbg_register *reg) 383 { 384 struct cx18 *cx = fh2id(fh)->cx; 385 386 if (reg->reg & 0x3) 387 return -EINVAL; 388 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE) 389 return -EINVAL; 390 cx18_write_enc(cx, reg->val, reg->reg); 391 return 0; 392 } 393 #endif 394 395 static int cx18_querycap(struct file *file, void *fh, 396 struct v4l2_capability *vcap) 397 { 398 struct cx18_open_id *id = fh2id(fh); 399 struct cx18_stream *s = video_drvdata(file); 400 struct cx18 *cx = id->cx; 401 402 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); 403 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); 404 snprintf(vcap->bus_info, sizeof(vcap->bus_info), 405 "PCI:%s", pci_name(cx->pci_dev)); 406 vcap->capabilities = cx->v4l2_cap; /* capabilities */ 407 vcap->device_caps = s->v4l2_dev_caps; /* device capabilities */ 408 vcap->capabilities |= V4L2_CAP_DEVICE_CAPS; 409 return 0; 410 } 411 412 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) 413 { 414 struct cx18 *cx = fh2id(fh)->cx; 415 416 return cx18_get_audio_input(cx, vin->index, vin); 417 } 418 419 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) 420 { 421 struct cx18 *cx = fh2id(fh)->cx; 422 423 vin->index = cx->audio_input; 424 return cx18_get_audio_input(cx, vin->index, vin); 425 } 426 427 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout) 428 { 429 struct cx18 *cx = fh2id(fh)->cx; 430 431 if (vout->index >= cx->nof_audio_inputs) 432 return -EINVAL; 433 cx->audio_input = vout->index; 434 cx18_audio_set_io(cx); 435 return 0; 436 } 437 438 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) 439 { 440 struct cx18 *cx = fh2id(fh)->cx; 441 442 /* set it to defaults from our table */ 443 return cx18_get_input(cx, vin->index, vin); 444 } 445 446 static int cx18_cropcap(struct file *file, void *fh, 447 struct v4l2_cropcap *cropcap) 448 { 449 struct cx18 *cx = fh2id(fh)->cx; 450 451 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 452 return -EINVAL; 453 cropcap->bounds.top = cropcap->bounds.left = 0; 454 cropcap->bounds.width = 720; 455 cropcap->bounds.height = cx->is_50hz ? 576 : 480; 456 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10; 457 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11; 458 cropcap->defrect = cropcap->bounds; 459 return 0; 460 } 461 462 static int cx18_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop) 463 { 464 struct cx18_open_id *id = fh2id(fh); 465 struct cx18 *cx = id->cx; 466 467 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 468 return -EINVAL; 469 CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n"); 470 return -EINVAL; 471 } 472 473 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) 474 { 475 struct cx18 *cx = fh2id(fh)->cx; 476 477 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 478 return -EINVAL; 479 CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n"); 480 return -EINVAL; 481 } 482 483 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, 484 struct v4l2_fmtdesc *fmt) 485 { 486 static const struct v4l2_fmtdesc formats[] = { 487 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 488 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } 489 }, 490 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, 491 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } 492 }, 493 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, 494 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 } 495 }, 496 }; 497 498 if (fmt->index > ARRAY_SIZE(formats) - 1) 499 return -EINVAL; 500 *fmt = formats[fmt->index]; 501 return 0; 502 } 503 504 static int cx18_g_input(struct file *file, void *fh, unsigned int *i) 505 { 506 struct cx18 *cx = fh2id(fh)->cx; 507 508 *i = cx->active_input; 509 return 0; 510 } 511 512 int cx18_s_input(struct file *file, void *fh, unsigned int inp) 513 { 514 struct cx18_open_id *id = fh2id(fh); 515 struct cx18 *cx = id->cx; 516 517 if (inp >= cx->nof_inputs) 518 return -EINVAL; 519 520 if (inp == cx->active_input) { 521 CX18_DEBUG_INFO("Input unchanged\n"); 522 return 0; 523 } 524 525 CX18_DEBUG_INFO("Changing input from %d to %d\n", 526 cx->active_input, inp); 527 528 cx->active_input = inp; 529 /* Set the audio input to whatever is appropriate for the input type. */ 530 cx->audio_input = cx->card->video_inputs[inp].audio_index; 531 532 /* prevent others from messing with the streams until 533 we're finished changing inputs. */ 534 cx18_mute(cx); 535 cx18_video_set_io(cx); 536 cx18_audio_set_io(cx); 537 cx18_unmute(cx); 538 return 0; 539 } 540 541 static int cx18_g_frequency(struct file *file, void *fh, 542 struct v4l2_frequency *vf) 543 { 544 struct cx18 *cx = fh2id(fh)->cx; 545 546 if (vf->tuner != 0) 547 return -EINVAL; 548 549 cx18_call_all(cx, tuner, g_frequency, vf); 550 return 0; 551 } 552 553 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) 554 { 555 struct cx18_open_id *id = fh2id(fh); 556 struct cx18 *cx = id->cx; 557 558 if (vf->tuner != 0) 559 return -EINVAL; 560 561 cx18_mute(cx); 562 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); 563 cx18_call_all(cx, tuner, s_frequency, vf); 564 cx18_unmute(cx); 565 return 0; 566 } 567 568 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) 569 { 570 struct cx18 *cx = fh2id(fh)->cx; 571 572 *std = cx->std; 573 return 0; 574 } 575 576 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std) 577 { 578 struct cx18_open_id *id = fh2id(fh); 579 struct cx18 *cx = id->cx; 580 581 if ((std & V4L2_STD_ALL) == 0) 582 return -EINVAL; 583 584 if (std == cx->std) 585 return 0; 586 587 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || 588 atomic_read(&cx->ana_capturing) > 0) { 589 /* Switching standard would turn off the radio or mess 590 with already running streams, prevent that by 591 returning EBUSY. */ 592 return -EBUSY; 593 } 594 595 cx->std = std; 596 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; 597 cx->is_50hz = !cx->is_60hz; 598 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz); 599 cx->cxhdl.width = 720; 600 cx->cxhdl.height = cx->is_50hz ? 576 : 480; 601 cx->vbi.count = cx->is_50hz ? 18 : 12; 602 cx->vbi.start[0] = cx->is_50hz ? 6 : 10; 603 cx->vbi.start[1] = cx->is_50hz ? 318 : 273; 604 CX18_DEBUG_INFO("Switching standard to %llx.\n", 605 (unsigned long long) cx->std); 606 607 /* Tuner */ 608 cx18_call_all(cx, video, s_std, cx->std); 609 return 0; 610 } 611 612 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) 613 { 614 struct cx18_open_id *id = fh2id(fh); 615 struct cx18 *cx = id->cx; 616 617 if (vt->index != 0) 618 return -EINVAL; 619 620 cx18_call_all(cx, tuner, s_tuner, vt); 621 return 0; 622 } 623 624 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) 625 { 626 struct cx18 *cx = fh2id(fh)->cx; 627 628 if (vt->index != 0) 629 return -EINVAL; 630 631 cx18_call_all(cx, tuner, g_tuner, vt); 632 633 if (vt->type == V4L2_TUNER_RADIO) 634 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); 635 else 636 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); 637 return 0; 638 } 639 640 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, 641 struct v4l2_sliced_vbi_cap *cap) 642 { 643 struct cx18 *cx = fh2id(fh)->cx; 644 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; 645 int f, l; 646 647 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) 648 return -EINVAL; 649 650 cap->service_set = 0; 651 for (f = 0; f < 2; f++) { 652 for (l = 0; l < 24; l++) { 653 if (valid_service_line(f, l, cx->is_50hz)) { 654 /* 655 * We can find all v4l2 supported vbi services 656 * for the standard, on a valid line for the std 657 */ 658 cap->service_lines[f][l] = set; 659 cap->service_set |= set; 660 } else 661 cap->service_lines[f][l] = 0; 662 } 663 } 664 for (f = 0; f < 3; f++) 665 cap->reserved[f] = 0; 666 return 0; 667 } 668 669 static int _cx18_process_idx_data(struct cx18_buffer *buf, 670 struct v4l2_enc_idx *idx) 671 { 672 int consumed, remaining; 673 struct v4l2_enc_idx_entry *e_idx; 674 struct cx18_enc_idx_entry *e_buf; 675 676 /* Frame type lookup: 1=I, 2=P, 4=B */ 677 const int mapping[8] = { 678 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, 679 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1 680 }; 681 682 /* 683 * Assumption here is that a buf holds an integral number of 684 * struct cx18_enc_idx_entry objects and is properly aligned. 685 * This is enforced by the module options on IDX buffer sizes. 686 */ 687 remaining = buf->bytesused - buf->readpos; 688 consumed = 0; 689 e_idx = &idx->entry[idx->entries]; 690 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; 691 692 while (remaining >= sizeof(struct cx18_enc_idx_entry) && 693 idx->entries < V4L2_ENC_IDX_ENTRIES) { 694 695 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32) 696 | le32_to_cpu(e_buf->offset_low); 697 698 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32) 699 | le32_to_cpu(e_buf->pts_low); 700 701 e_idx->length = le32_to_cpu(e_buf->length); 702 703 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7]; 704 705 e_idx->reserved[0] = 0; 706 e_idx->reserved[1] = 0; 707 708 idx->entries++; 709 e_idx = &idx->entry[idx->entries]; 710 e_buf++; 711 712 remaining -= sizeof(struct cx18_enc_idx_entry); 713 consumed += sizeof(struct cx18_enc_idx_entry); 714 } 715 716 /* Swallow any partial entries at the end, if there are any */ 717 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry)) 718 consumed += remaining; 719 720 buf->readpos += consumed; 721 return consumed; 722 } 723 724 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl, 725 struct v4l2_enc_idx *idx) 726 { 727 if (s->type != CX18_ENC_STREAM_TYPE_IDX) 728 return -EINVAL; 729 730 if (mdl->curr_buf == NULL) 731 mdl->curr_buf = list_first_entry(&mdl->buf_list, 732 struct cx18_buffer, list); 733 734 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { 735 /* 736 * For some reason we've exhausted the buffers, but the MDL 737 * object still said some data was unread. 738 * Fix that and bail out. 739 */ 740 mdl->readpos = mdl->bytesused; 741 return 0; 742 } 743 744 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { 745 746 /* Skip any empty buffers in the MDL */ 747 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) 748 continue; 749 750 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); 751 752 /* exit when MDL drained or request satisfied */ 753 if (idx->entries >= V4L2_ENC_IDX_ENTRIES || 754 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || 755 mdl->readpos >= mdl->bytesused) 756 break; 757 } 758 return 0; 759 } 760 761 static int cx18_g_enc_index(struct file *file, void *fh, 762 struct v4l2_enc_idx *idx) 763 { 764 struct cx18 *cx = fh2id(fh)->cx; 765 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX]; 766 s32 tmp; 767 struct cx18_mdl *mdl; 768 769 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */ 770 return -EINVAL; 771 772 /* Compute the best case number of entries we can buffer */ 773 tmp = s->buffers - 774 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN; 775 if (tmp <= 0) 776 tmp = 1; 777 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry); 778 779 /* Fill out the header of the return structure */ 780 idx->entries = 0; 781 idx->entries_cap = tmp; 782 memset(idx->reserved, 0, sizeof(idx->reserved)); 783 784 /* Pull IDX MDLs and buffers from q_full and populate the entries */ 785 do { 786 mdl = cx18_dequeue(s, &s->q_full); 787 if (mdl == NULL) /* No more IDX data right now */ 788 break; 789 790 /* Extract the Index entry data from the MDL and buffers */ 791 cx18_process_idx_data(s, mdl, idx); 792 if (mdl->readpos < mdl->bytesused) { 793 /* We finished with data remaining, push the MDL back */ 794 cx18_push(s, mdl, &s->q_full); 795 break; 796 } 797 798 /* We drained this MDL, schedule it to go to the firmware */ 799 cx18_enqueue(s, mdl, &s->q_free); 800 801 } while (idx->entries < V4L2_ENC_IDX_ENTRIES); 802 803 /* Tell the work handler to send free IDX MDLs to the firmware */ 804 cx18_stream_load_fw_queue(s); 805 return 0; 806 } 807 808 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id) 809 { 810 struct videobuf_queue *q = NULL; 811 struct cx18 *cx = id->cx; 812 struct cx18_stream *s = &cx->streams[id->type]; 813 814 switch (s->vb_type) { 815 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 816 q = &s->vbuf_q; 817 break; 818 case V4L2_BUF_TYPE_VBI_CAPTURE: 819 break; 820 default: 821 break; 822 } 823 return q; 824 } 825 826 static int cx18_streamon(struct file *file, void *priv, 827 enum v4l2_buf_type type) 828 { 829 struct cx18_open_id *id = file->private_data; 830 struct cx18 *cx = id->cx; 831 struct cx18_stream *s = &cx->streams[id->type]; 832 833 /* Start the hardware only if we're the video device */ 834 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 835 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 836 return -EINVAL; 837 838 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 839 return -EINVAL; 840 841 /* Establish a buffer timeout */ 842 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies); 843 844 return videobuf_streamon(cx18_vb_queue(id)); 845 } 846 847 static int cx18_streamoff(struct file *file, void *priv, 848 enum v4l2_buf_type type) 849 { 850 struct cx18_open_id *id = file->private_data; 851 struct cx18 *cx = id->cx; 852 struct cx18_stream *s = &cx->streams[id->type]; 853 854 /* Start the hardware only if we're the video device */ 855 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 856 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 857 return -EINVAL; 858 859 if (id->type != CX18_ENC_STREAM_TYPE_YUV) 860 return -EINVAL; 861 862 return videobuf_streamoff(cx18_vb_queue(id)); 863 } 864 865 static int cx18_reqbufs(struct file *file, void *priv, 866 struct v4l2_requestbuffers *rb) 867 { 868 struct cx18_open_id *id = file->private_data; 869 struct cx18 *cx = id->cx; 870 struct cx18_stream *s = &cx->streams[id->type]; 871 872 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 873 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 874 return -EINVAL; 875 876 return videobuf_reqbufs(cx18_vb_queue(id), rb); 877 } 878 879 static int cx18_querybuf(struct file *file, void *priv, 880 struct v4l2_buffer *b) 881 { 882 struct cx18_open_id *id = file->private_data; 883 struct cx18 *cx = id->cx; 884 struct cx18_stream *s = &cx->streams[id->type]; 885 886 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 887 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 888 return -EINVAL; 889 890 return videobuf_querybuf(cx18_vb_queue(id), b); 891 } 892 893 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 894 { 895 struct cx18_open_id *id = file->private_data; 896 struct cx18 *cx = id->cx; 897 struct cx18_stream *s = &cx->streams[id->type]; 898 899 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 900 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 901 return -EINVAL; 902 903 return videobuf_qbuf(cx18_vb_queue(id), b); 904 } 905 906 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 907 { 908 struct cx18_open_id *id = file->private_data; 909 struct cx18 *cx = id->cx; 910 struct cx18_stream *s = &cx->streams[id->type]; 911 912 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && 913 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE)) 914 return -EINVAL; 915 916 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK); 917 } 918 919 static int cx18_encoder_cmd(struct file *file, void *fh, 920 struct v4l2_encoder_cmd *enc) 921 { 922 struct cx18_open_id *id = fh2id(fh); 923 struct cx18 *cx = id->cx; 924 u32 h; 925 926 switch (enc->cmd) { 927 case V4L2_ENC_CMD_START: 928 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); 929 enc->flags = 0; 930 return cx18_start_capture(id); 931 932 case V4L2_ENC_CMD_STOP: 933 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); 934 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; 935 cx18_stop_capture(id, 936 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); 937 break; 938 939 case V4L2_ENC_CMD_PAUSE: 940 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); 941 enc->flags = 0; 942 if (!atomic_read(&cx->ana_capturing)) 943 return -EPERM; 944 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 945 return 0; 946 h = cx18_find_handle(cx); 947 if (h == CX18_INVALID_TASK_HANDLE) { 948 CX18_ERR("Can't find valid task handle for " 949 "V4L2_ENC_CMD_PAUSE\n"); 950 return -EBADFD; 951 } 952 cx18_mute(cx); 953 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h); 954 break; 955 956 case V4L2_ENC_CMD_RESUME: 957 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); 958 enc->flags = 0; 959 if (!atomic_read(&cx->ana_capturing)) 960 return -EPERM; 961 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) 962 return 0; 963 h = cx18_find_handle(cx); 964 if (h == CX18_INVALID_TASK_HANDLE) { 965 CX18_ERR("Can't find valid task handle for " 966 "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_cropcap = cx18_cropcap, 1084 .vidioc_s_crop = cx18_s_crop, 1085 .vidioc_g_crop = cx18_g_crop, 1086 .vidioc_g_input = cx18_g_input, 1087 .vidioc_s_input = cx18_s_input, 1088 .vidioc_g_frequency = cx18_g_frequency, 1089 .vidioc_s_frequency = cx18_s_frequency, 1090 .vidioc_s_tuner = cx18_s_tuner, 1091 .vidioc_g_tuner = cx18_g_tuner, 1092 .vidioc_g_enc_index = cx18_g_enc_index, 1093 .vidioc_g_std = cx18_g_std, 1094 .vidioc_s_std = cx18_s_std, 1095 .vidioc_log_status = cx18_log_status, 1096 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap, 1097 .vidioc_encoder_cmd = cx18_encoder_cmd, 1098 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd, 1099 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap, 1100 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap, 1101 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap, 1102 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap, 1103 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap, 1104 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap, 1105 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap, 1106 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap, 1107 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap, 1108 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap, 1109 #ifdef CONFIG_VIDEO_ADV_DEBUG 1110 .vidioc_g_register = cx18_g_register, 1111 .vidioc_s_register = cx18_s_register, 1112 #endif 1113 .vidioc_default = cx18_default, 1114 .vidioc_streamon = cx18_streamon, 1115 .vidioc_streamoff = cx18_streamoff, 1116 .vidioc_reqbufs = cx18_reqbufs, 1117 .vidioc_querybuf = cx18_querybuf, 1118 .vidioc_qbuf = cx18_qbuf, 1119 .vidioc_dqbuf = cx18_dqbuf, 1120 }; 1121 1122 void cx18_set_funcs(struct video_device *vdev) 1123 { 1124 vdev->ioctl_ops = &cx18_ioctl_ops; 1125 } 1126