saa7164-encoder.c revision 46eeb8dd30d3651e6ea55c2e60594206cd591d79
1/* 2 * Driver for the NXP SAA7164 PCIe bridge 3 * 4 * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22#include "saa7164.h" 23 24#define ENCODER_MAX_BITRATE 6500000 25#define ENCODER_MIN_BITRATE 1000000 26#define ENCODER_DEF_BITRATE 5000000 27 28static struct saa7164_tvnorm saa7164_tvnorms[] = { 29 { 30 .name = "NTSC-M", 31 .id = V4L2_STD_NTSC_M, 32 }, { 33 .name = "NTSC-JP", 34 .id = V4L2_STD_NTSC_M_JP, 35 } 36}; 37 38static const u32 saa7164_v4l2_ctrls[] = { 39 V4L2_CID_BRIGHTNESS, 40 V4L2_CID_CONTRAST, 41 V4L2_CID_SATURATION, 42 V4L2_CID_HUE, 43 V4L2_CID_AUDIO_VOLUME, 44 V4L2_CID_SHARPNESS, 45 V4L2_CID_MPEG_STREAM_TYPE, 46 V4L2_CID_MPEG_VIDEO_ASPECT, 47 V4L2_CID_MPEG_VIDEO_B_FRAMES, 48 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 49 V4L2_CID_MPEG_AUDIO_MUTE, 50 V4L2_CID_MPEG_VIDEO_BITRATE_MODE, 51 V4L2_CID_MPEG_VIDEO_BITRATE, 52 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, 53 0 54}; 55 56/* Take the encoder configuration form the port struct and 57 * flush it to the hardware. 58 */ 59static void saa7164_encoder_configure(struct saa7164_port *port) 60{ 61 struct saa7164_dev *dev = port->dev; 62 dprintk(DBGLVL_ENC, "%s()\n", __func__); 63 64 port->encoder_params.width = port->width; 65 port->encoder_params.height = port->height; 66 port->encoder_params.is_50hz = 67 (port->encodernorm.id & V4L2_STD_625_50) != 0; 68 69 /* Set up the DIF (enable it) for analog mode by default */ 70 saa7164_api_initialize_dif(port); 71 72 /* Configure the correct video standard */ 73 saa7164_api_configure_dif(port, port->encodernorm.id); 74 75 /* Ensure the audio decoder is correct configured */ 76 saa7164_api_set_audio_std(port); 77} 78 79/* One time configuration at registration time */ 80static int saa7164_encoder_initialize(struct saa7164_port *port) 81{ 82 struct saa7164_dev *dev = port->dev; 83 84 dprintk(DBGLVL_ENC, "%s()\n", __func__); 85 86 saa7164_encoder_configure(port); 87 88 return 0; 89} 90 91/* -- V4L2 --------------------------------------------------------- */ 92static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id) 93{ 94 struct saa7164_fh *fh = file->private_data; 95 struct saa7164_port *port = fh->port; 96 struct saa7164_dev *dev = port->dev; 97 unsigned int i; 98 99 dprintk(DBGLVL_ENC, "%s(id=0x%x)\n", __func__, (u32)*id); 100 101 for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) { 102 if (*id & saa7164_tvnorms[i].id) 103 break; 104 } 105 if (i == ARRAY_SIZE(saa7164_tvnorms)) 106 return -EINVAL; 107 108 port->encodernorm = saa7164_tvnorms[i]; 109 110 /* Update the audio decoder while is not running in 111 * auto detect mode. 112 */ 113 saa7164_api_set_audio_std(port); 114 115 dprintk(DBGLVL_ENC, "%s(id=0x%x) OK\n", __func__, (u32)*id); 116 117 return 0; 118} 119 120static int vidioc_enum_input(struct file *file, void *priv, 121 struct v4l2_input *i) 122{ 123 int n; 124 125 char *inputs[] = { "tuner", "composite", "svideo", "aux", 126 "composite", "svideo", "aux" }; 127 128 if (i->index >= 7) 129 return -EINVAL; 130 131 strcpy(i->name, inputs[ i->index ]); 132 133 if (i->index == 0) 134 i->type = V4L2_INPUT_TYPE_TUNER; 135 else 136 i->type = V4L2_INPUT_TYPE_CAMERA; 137 138 for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++) 139 i->std |= saa7164_tvnorms[n].id; 140 141 return 0; 142} 143 144static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 145{ 146 struct saa7164_fh *fh = file->private_data; 147 struct saa7164_port *port = fh->port; 148 struct saa7164_dev *dev = port->dev; 149 150 if (saa7164_api_get_videomux(port) != SAA_OK) 151 return -EIO; 152 153 *i = (port->mux_input - 1); 154 155 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, *i); 156 157 return 0; 158} 159 160static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 161{ 162 struct saa7164_fh *fh = file->private_data; 163 struct saa7164_port *port = fh->port; 164 struct saa7164_dev *dev = port->dev; 165 166 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, i); 167 168 if (i >= 7) 169 return -EINVAL; 170 171 port->mux_input = i + 1; 172 173 if (saa7164_api_set_videomux(port) != SAA_OK) 174 return -EIO; 175 176 return 0; 177} 178 179static int vidioc_g_tuner(struct file *file, void *priv, 180 struct v4l2_tuner *t) 181{ 182 struct saa7164_fh *fh = file->private_data; 183 struct saa7164_port *port = fh->port; 184 struct saa7164_dev *dev = port->dev; 185 186 if (0 != t->index) 187 return -EINVAL; 188 189 strcpy(t->name, "tuner"); 190 t->type = V4L2_TUNER_ANALOG_TV; 191 t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO; 192 193 dprintk(DBGLVL_ENC, "VIDIOC_G_TUNER: tuner type %d\n", t->type); 194 195 return 0; 196} 197 198static int vidioc_s_tuner(struct file *file, void *priv, 199 struct v4l2_tuner *t) 200{ 201 202 /* Update the A/V core */ 203 204 return 0; 205} 206 207static int vidioc_g_frequency(struct file *file, void *priv, 208 struct v4l2_frequency *f) 209{ 210 struct saa7164_fh *fh = file->private_data; 211 struct saa7164_port *port = fh->port; 212 213 f->type = V4L2_TUNER_ANALOG_TV; 214 f->frequency = port->freq; 215 216 return 0; 217} 218 219static int vidioc_s_frequency(struct file *file, void *priv, 220 struct v4l2_frequency *f) 221{ 222 struct saa7164_fh *fh = file->private_data; 223 struct saa7164_port *port = fh->port; 224 struct saa7164_dev *dev = port->dev; 225 struct saa7164_port *tsport; 226 struct dvb_frontend *fe; 227 228 /* TODO: Pull this for the std */ 229 struct analog_parameters params = { 230 .mode = V4L2_TUNER_ANALOG_TV, 231 .audmode = V4L2_TUNER_MODE_STEREO, 232 .std = port->encodernorm.id, 233 .frequency = f->frequency 234 }; 235 236 /* Stop the encoder */ 237 dprintk(DBGLVL_ENC, "%s() frequency=%d tuner=%d\n", __func__, 238 f->frequency, f->tuner); 239 240 if (f->tuner != 0) 241 return -EINVAL; 242 243 if (f->type != V4L2_TUNER_ANALOG_TV) 244 return -EINVAL; 245 246 port->freq = f->frequency; 247 248 /* Update the hardware */ 249 if (port->nr == SAA7164_PORT_ENC1) 250 tsport = &dev->ports[ SAA7164_PORT_TS1 ]; 251 else 252 if (port->nr == SAA7164_PORT_ENC2) 253 tsport = &dev->ports[ SAA7164_PORT_TS2 ]; 254 else 255 BUG(); 256 257 fe = tsport->dvb.frontend; 258 259 if (fe && fe->ops.tuner_ops.set_analog_params) 260 fe->ops.tuner_ops.set_analog_params(fe, ¶ms); 261 else 262 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); 263 264 saa7164_encoder_initialize(port); 265 266 return 0; 267} 268 269static int vidioc_g_ctrl(struct file *file, void *priv, 270 struct v4l2_control *ctl) 271{ 272 struct saa7164_fh *fh = file->private_data; 273 struct saa7164_port *port = fh->port; 274 struct saa7164_dev *dev = port->dev; 275 276 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 277 ctl->id, ctl->value); 278 279 switch (ctl->id) { 280 case V4L2_CID_BRIGHTNESS: 281 ctl->value = port->ctl_brightness; 282 break; 283 case V4L2_CID_CONTRAST: 284 ctl->value = port->ctl_contrast; 285 break; 286 case V4L2_CID_SATURATION: 287 ctl->value = port->ctl_saturation; 288 break; 289 case V4L2_CID_HUE: 290 ctl->value = port->ctl_hue; 291 break; 292 case V4L2_CID_SHARPNESS: 293 ctl->value = port->ctl_sharpness; 294 break; 295 case V4L2_CID_AUDIO_VOLUME: 296 ctl->value = port->ctl_volume; 297 break; 298 default: 299 return -EINVAL; 300 } 301 302 return 0; 303} 304 305static int vidioc_s_ctrl(struct file *file, void *priv, 306 struct v4l2_control *ctl) 307{ 308 struct saa7164_fh *fh = file->private_data; 309 struct saa7164_port *port = fh->port; 310 struct saa7164_dev *dev = port->dev; 311 int ret = 0; 312 313 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 314 ctl->id, ctl->value); 315 316 switch (ctl->id) { 317 case V4L2_CID_BRIGHTNESS: 318 if ((ctl->value >= 0) && (ctl->value <= 255)) { 319 port->ctl_brightness = ctl->value; 320 saa7164_api_set_usercontrol(port, 321 PU_BRIGHTNESS_CONTROL); 322 } else 323 ret = -EINVAL; 324 break; 325 case V4L2_CID_CONTRAST: 326 if ((ctl->value >= 0) && (ctl->value <= 255)) { 327 port->ctl_contrast = ctl->value; 328 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 329 } else 330 ret = -EINVAL; 331 break; 332 case V4L2_CID_SATURATION: 333 if ((ctl->value >= 0) && (ctl->value <= 255)) { 334 port->ctl_saturation = ctl->value; 335 saa7164_api_set_usercontrol(port, 336 PU_SATURATION_CONTROL); 337 } else 338 ret = -EINVAL; 339 break; 340 case V4L2_CID_HUE: 341 if ((ctl->value >= 0) && (ctl->value <= 255)) { 342 port->ctl_hue = ctl->value; 343 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 344 } else 345 ret = -EINVAL; 346 break; 347 case V4L2_CID_SHARPNESS: 348 if ((ctl->value >= 0) && (ctl->value <= 255)) { 349 port->ctl_sharpness = ctl->value; 350 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 351 } else 352 ret = -EINVAL; 353 break; 354 case V4L2_CID_AUDIO_VOLUME: 355 if ((ctl->value >= -83) && (ctl->value <= 24)) { 356 port->ctl_volume = ctl->value; 357 saa7164_api_set_audio_volume(port, port->ctl_volume); 358 } else 359 ret = -EINVAL; 360 break; 361 default: 362 ret = -EINVAL; 363 } 364 365 return ret; 366} 367 368static int saa7164_get_ctrl(struct saa7164_port *port, 369 struct v4l2_ext_control *ctrl) 370{ 371 struct saa7164_encoder_params *params = &port->encoder_params; 372 373 switch (ctrl->id) { 374 case V4L2_CID_MPEG_VIDEO_BITRATE: 375 ctrl->value = params->bitrate; 376 break; 377 case V4L2_CID_MPEG_STREAM_TYPE: 378 ctrl->value = params->stream_type; 379 break; 380 case V4L2_CID_MPEG_AUDIO_MUTE: 381 ctrl->value = params->ctl_mute; 382 break; 383 case V4L2_CID_MPEG_VIDEO_ASPECT: 384 ctrl->value = params->ctl_aspect; 385 break; 386 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 387 ctrl->value = params->bitrate_mode; 388 break; 389 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 390 ctrl->value = params->refdist; 391 break; 392 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 393 ctrl->value = params->bitrate_peak; 394 break; 395 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 396 ctrl->value = params->gop_size; 397 break; 398 default: 399 return -EINVAL; 400 } 401 return 0; 402} 403 404static int vidioc_g_ext_ctrls(struct file *file, void *priv, 405 struct v4l2_ext_controls *ctrls) 406{ 407 struct saa7164_fh *fh = file->private_data; 408 struct saa7164_port *port = fh->port; 409 int i, err = 0; 410 411 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 412 for (i = 0; i < ctrls->count; i++) { 413 struct v4l2_ext_control *ctrl = ctrls->controls + i; 414 415 err = saa7164_get_ctrl(port, ctrl); 416 if (err) { 417 ctrls->error_idx = i; 418 break; 419 } 420 } 421 return err; 422 423 } 424 425 return -EINVAL; 426} 427 428static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) 429{ 430 int ret = -EINVAL; 431 432 switch (ctrl->id) { 433 case V4L2_CID_MPEG_VIDEO_BITRATE: 434 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 435 (ctrl->value <= ENCODER_MAX_BITRATE)) 436 ret = 0; 437 break; 438 case V4L2_CID_MPEG_STREAM_TYPE: 439 if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) || 440 (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)) 441 ret = 0; 442 break; 443 case V4L2_CID_MPEG_AUDIO_MUTE: 444 if ((ctrl->value >= 0) && 445 (ctrl->value <= 1)) 446 ret = 0; 447 break; 448 case V4L2_CID_MPEG_VIDEO_ASPECT: 449 if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) && 450 (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100)) 451 ret = 0; 452 break; 453 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 454 if ((ctrl->value >= 0) && 455 (ctrl->value <= 255)) 456 ret = 0; 457 break; 458 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 459 if ((ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) || 460 (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)) 461 ret = 0; 462 break; 463 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 464 if ((ctrl->value >= 1) && 465 (ctrl->value <= 3)) 466 ret = 0; 467 break; 468 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 469 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 470 (ctrl->value <= ENCODER_MAX_BITRATE)) 471 ret = 0; 472 break; 473 default: 474 ret = -EINVAL; 475 } 476 477 return ret; 478} 479 480static int vidioc_try_ext_ctrls(struct file *file, void *priv, 481 struct v4l2_ext_controls *ctrls) 482{ 483 int i, err = 0; 484 485 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 486 for (i = 0; i < ctrls->count; i++) { 487 struct v4l2_ext_control *ctrl = ctrls->controls + i; 488 489 err = saa7164_try_ctrl(ctrl, 0); 490 if (err) { 491 ctrls->error_idx = i; 492 break; 493 } 494 } 495 return err; 496 } 497 498 return -EINVAL; 499} 500 501static int saa7164_set_ctrl(struct saa7164_port *port, 502 struct v4l2_ext_control *ctrl) 503{ 504 struct saa7164_encoder_params *params = &port->encoder_params; 505 int ret = 0; 506 507 switch (ctrl->id) { 508 case V4L2_CID_MPEG_VIDEO_BITRATE: 509 params->bitrate = ctrl->value; 510 break; 511 case V4L2_CID_MPEG_STREAM_TYPE: 512 params->stream_type = ctrl->value; 513 break; 514 case V4L2_CID_MPEG_AUDIO_MUTE: 515 params->ctl_mute = ctrl->value; 516 ret = saa7164_api_audio_mute(port, params->ctl_mute); 517 if (ret != SAA_OK) { 518 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 519 ret); 520 ret = -EIO; 521 } 522 break; 523 case V4L2_CID_MPEG_VIDEO_ASPECT: 524 params->ctl_aspect = ctrl->value; 525 ret = saa7164_api_set_aspect_ratio(port); 526 if (ret != SAA_OK) { 527 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 528 ret); 529 ret = -EIO; 530 } 531 break; 532 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 533 params->bitrate_mode = ctrl->value; 534 break; 535 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 536 params->refdist = ctrl->value; 537 break; 538 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 539 params->bitrate_peak = ctrl->value; 540 break; 541 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 542 params->gop_size = ctrl->value; 543 break; 544 default: 545 return -EINVAL; 546 } 547 548 /* TODO: Update the hardware */ 549 550 return ret; 551} 552 553static int vidioc_s_ext_ctrls(struct file *file, void *priv, 554 struct v4l2_ext_controls *ctrls) 555{ 556 struct saa7164_fh *fh = file->private_data; 557 struct saa7164_port *port = fh->port; 558 int i, err = 0; 559 560 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 561 for (i = 0; i < ctrls->count; i++) { 562 struct v4l2_ext_control *ctrl = ctrls->controls + i; 563 564 err = saa7164_try_ctrl(ctrl, 0); 565 if (err) { 566 ctrls->error_idx = i; 567 break; 568 } 569 err = saa7164_set_ctrl(port, ctrl); 570 if (err) { 571 ctrls->error_idx = i; 572 break; 573 } 574 } 575 return err; 576 577 } 578 579 return -EINVAL; 580} 581 582static int vidioc_querycap(struct file *file, void *priv, 583 struct v4l2_capability *cap) 584{ 585 struct saa7164_fh *fh = file->private_data; 586 struct saa7164_port *port = fh->port; 587 struct saa7164_dev *dev = port->dev; 588 589 strcpy(cap->driver, dev->name); 590 strlcpy(cap->card, saa7164_boards[dev->board].name, 591 sizeof(cap->card)); 592 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci)); 593 594 cap->capabilities = 595 V4L2_CAP_VIDEO_CAPTURE | 596 V4L2_CAP_READWRITE | 597 V4L2_CAP_STREAMING | 598 0; 599 600 cap->capabilities |= V4L2_CAP_TUNER; 601 cap->version = 0; 602 603 return 0; 604} 605 606static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 607 struct v4l2_fmtdesc *f) 608{ 609 if (f->index != 0) 610 return -EINVAL; 611 612 strlcpy(f->description, "MPEG", sizeof(f->description)); 613 f->pixelformat = V4L2_PIX_FMT_MPEG; 614 615 return 0; 616} 617 618static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 619 struct v4l2_format *f) 620{ 621 struct saa7164_fh *fh = file->private_data; 622 struct saa7164_port *port = fh->port; 623 struct saa7164_dev *dev = port->dev; 624 625 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 626 f->fmt.pix.bytesperline = 0; 627 f->fmt.pix.sizeimage = 628 port->ts_packet_size * port->ts_packet_count; 629 f->fmt.pix.colorspace = 0; 630 f->fmt.pix.width = port->width; 631 f->fmt.pix.height = port->height; 632 633 dprintk(DBGLVL_ENC, "VIDIOC_G_FMT: w: %d, h: %d\n", 634 port->width, port->height); 635 636 return 0; 637} 638 639static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 640 struct v4l2_format *f) 641{ 642 struct saa7164_fh *fh = file->private_data; 643 struct saa7164_port *port = fh->port; 644 struct saa7164_dev *dev = port->dev; 645 646 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 647 f->fmt.pix.bytesperline = 0; 648 f->fmt.pix.sizeimage = 649 port->ts_packet_size * port->ts_packet_count; 650 f->fmt.pix.colorspace = 0; 651 dprintk(DBGLVL_ENC, "VIDIOC_TRY_FMT: w: %d, h: %d\n", 652 port->width, port->height); 653 return 0; 654} 655 656static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 657 struct v4l2_format *f) 658{ 659 struct saa7164_fh *fh = file->private_data; 660 struct saa7164_port *port = fh->port; 661 struct saa7164_dev *dev = port->dev; 662 663 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 664 f->fmt.pix.bytesperline = 0; 665 f->fmt.pix.sizeimage = 666 port->ts_packet_size * port->ts_packet_count; 667 f->fmt.pix.colorspace = 0; 668 669 dprintk(DBGLVL_ENC, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n", 670 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); 671 672 return 0; 673} 674 675static int vidioc_log_status(struct file *file, void *priv) 676{ 677 return 0; 678} 679 680static int fill_queryctrl(struct saa7164_encoder_params *params, 681 struct v4l2_queryctrl *c) 682{ 683 switch (c->id) { 684 case V4L2_CID_BRIGHTNESS: 685 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127); 686 case V4L2_CID_CONTRAST: 687 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66); 688 case V4L2_CID_SATURATION: 689 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62); 690 case V4L2_CID_HUE: 691 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128); 692 case V4L2_CID_SHARPNESS: 693 return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8); 694 case V4L2_CID_MPEG_AUDIO_MUTE: 695 return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0); 696 case V4L2_CID_AUDIO_VOLUME: 697 return v4l2_ctrl_query_fill(c, -83, 24, 1, 20); 698 case V4L2_CID_MPEG_VIDEO_BITRATE: 699 return v4l2_ctrl_query_fill(c, 700 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 701 100000, ENCODER_DEF_BITRATE); 702 case V4L2_CID_MPEG_STREAM_TYPE: 703 return v4l2_ctrl_query_fill(c, 704 V4L2_MPEG_STREAM_TYPE_MPEG2_PS, 705 V4L2_MPEG_STREAM_TYPE_MPEG2_TS, 706 1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS); 707 case V4L2_CID_MPEG_VIDEO_ASPECT: 708 return v4l2_ctrl_query_fill(c, 709 V4L2_MPEG_VIDEO_ASPECT_1x1, 710 V4L2_MPEG_VIDEO_ASPECT_221x100, 711 1, V4L2_MPEG_VIDEO_ASPECT_4x3); 712 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 713 return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); 714 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 715 return v4l2_ctrl_query_fill(c, 716 V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 717 1, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); 718 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 719 return v4l2_ctrl_query_fill(c, 720 1, 3, 1, 1); 721 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 722 return v4l2_ctrl_query_fill(c, 723 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 724 100000, ENCODER_DEF_BITRATE); 725 default: 726 return -EINVAL; 727 } 728} 729 730static int vidioc_queryctrl(struct file *file, void *priv, 731 struct v4l2_queryctrl *c) 732{ 733 struct saa7164_fh *fh = priv; 734 struct saa7164_port *port = fh->port; 735 int i, next; 736 u32 id = c->id; 737 738 memset(c, 0, sizeof(*c)); 739 740 next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); 741 c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; 742 743 for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) { 744 if (next) { 745 if (c->id < saa7164_v4l2_ctrls[i]) 746 c->id = saa7164_v4l2_ctrls[i]; 747 else 748 continue; 749 } 750 751 if (c->id == saa7164_v4l2_ctrls[i]) 752 return fill_queryctrl(&port->encoder_params, c); 753 754 if (c->id < saa7164_v4l2_ctrls[i]) 755 break; 756 } 757 758 return -EINVAL; 759} 760 761static int saa7164_encoder_stop_port(struct saa7164_port *port) 762{ 763 struct saa7164_dev *dev = port->dev; 764 int ret; 765 766 ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 767 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 768 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n", 769 __func__, ret); 770 ret = -EIO; 771 } else { 772 dprintk(DBGLVL_ENC, "%s() Stopped\n", __func__); 773 ret = 0; 774 } 775 776 return ret; 777} 778 779static int saa7164_encoder_acquire_port(struct saa7164_port *port) 780{ 781 struct saa7164_dev *dev = port->dev; 782 int ret; 783 784 ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 785 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 786 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n", 787 __func__, ret); 788 ret = -EIO; 789 } else { 790 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 791 ret = 0; 792 } 793 794 return ret; 795} 796 797static int saa7164_encoder_pause_port(struct saa7164_port *port) 798{ 799 struct saa7164_dev *dev = port->dev; 800 int ret; 801 802 ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 803 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 804 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n", 805 __func__, ret); 806 ret = -EIO; 807 } else { 808 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 809 ret = 0; 810 } 811 812 return ret; 813} 814 815/* Firmware is very windows centric, meaning you have to transition 816 * the part through AVStream / KS Windows stages, forwards or backwards. 817 * States are: stopped, acquired (h/w), paused, started. 818 * We have to leave here will all of the soft buffers on the free list, 819 * else the cfg_post() func won't have soft buffers to correctly configure. 820 */ 821static int saa7164_encoder_stop_streaming(struct saa7164_port *port) 822{ 823 struct saa7164_dev *dev = port->dev; 824 struct saa7164_buffer *buf; 825 struct saa7164_user_buffer *ubuf; 826 struct list_head *c, *n; 827 int ret; 828 829 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 830 831 ret = saa7164_encoder_pause_port(port); 832 ret = saa7164_encoder_acquire_port(port); 833 ret = saa7164_encoder_stop_port(port); 834 835 dprintk(DBGLVL_ENC, "%s(port=%d) Hardware stopped\n", __func__, 836 port->nr); 837 838 mutex_lock(&port->dmaqueue_lock); 839 840 /* Reset the hard and soft buffer state */ 841 list_for_each_safe(c, n, &port->dmaqueue.list) { 842 buf = list_entry(c, struct saa7164_buffer, list); 843 buf->flags = SAA7164_BUFFER_FREE; 844 buf->pos = 0; 845 } 846 847 list_for_each_safe(c, n, &port->list_buf_used.list) { 848 ubuf = list_entry(c, struct saa7164_user_buffer, list); 849 ubuf->pos = 0; 850 list_move_tail(&ubuf->list, &port->list_buf_free.list); 851 } 852 853 mutex_unlock(&port->dmaqueue_lock); 854 dprintk(DBGLVL_ENC, "%s(port=%d) Released\n", __func__, port->nr); 855 856 return ret; 857} 858 859static int saa7164_encoder_start_streaming(struct saa7164_port *port) 860{ 861 struct saa7164_dev *dev = port->dev; 862 int result, ret = 0; 863 864 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 865 866 /* Configure the encoder with any cache values */ 867 saa7164_api_set_encoder(port); 868 869 saa7164_buffer_cfg_port(port); 870 871 /* Acquire the hardware */ 872 result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 873 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 874 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n", 875 __func__, result); 876 877 /* Stop the hardware, regardless */ 878 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 879 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 880 printk(KERN_ERR "%s() acquire/forced stop transition " 881 "failed, res = 0x%x\n", __func__, result); 882 } 883 ret = -EIO; 884 goto out; 885 } else 886 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 887 888 /* Pause the hardware */ 889 result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 890 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 891 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n", 892 __func__, result); 893 894 /* Stop the hardware, regardless */ 895 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 896 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 897 printk(KERN_ERR "%s() pause/forced stop transition " 898 "failed, res = 0x%x\n", __func__, result); 899 } 900 901 ret = -EIO; 902 goto out; 903 } else 904 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 905 906 /* Start the hardware */ 907 result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN); 908 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 909 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n", 910 __func__, result); 911 912 /* Stop the hardware, regardless */ 913 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 914 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 915 printk(KERN_ERR "%s() run/forced stop transition " 916 "failed, res = 0x%x\n", __func__, result); 917 } 918 919 ret = -EIO; 920 } else 921 dprintk(DBGLVL_ENC, "%s() Running\n", __func__); 922 923out: 924 return ret; 925} 926 927static int fops_open(struct file *file) 928{ 929 struct saa7164_dev *h, *dev = NULL; 930 struct saa7164_port *port = NULL; 931 struct saa7164_port *portc = NULL; 932 struct saa7164_port *portd = NULL; 933 struct saa7164_fh *fh; 934 struct list_head *list; 935 int minor = video_devdata(file)->minor; 936 937 dprintk(DBGLVL_ENC, "%s()\n", __func__); 938 939 /* TODO: Really, the BKL? - remove this */ 940 lock_kernel(); 941 list_for_each(list, &saa7164_devlist) { 942 h = list_entry(list, struct saa7164_dev, devlist); 943 944 portc = &h->ports[ SAA7164_PORT_ENC1 ]; 945 portd = &h->ports[ SAA7164_PORT_ENC2 ]; 946 947 if (portc->v4l_device && 948 portc->v4l_device->minor == minor) { 949 dev = h; 950 port = portc; 951 break; 952 } 953 954 if (portd->v4l_device && 955 portd->v4l_device->minor == minor) { 956 dev = h; 957 port = portd; 958 break; 959 } 960 961 } 962 963 if (port == NULL) { 964 unlock_kernel(); 965 return -ENODEV; 966 } 967 968 /* allocate + initialize per filehandle data */ 969 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 970 if (NULL == fh) { 971 unlock_kernel(); 972 return -ENOMEM; 973 } 974 975 file->private_data = fh; 976 fh->port = port; 977 978 unlock_kernel(); 979 980 return 0; 981} 982 983static int fops_release(struct file *file) 984{ 985 struct saa7164_fh *fh = file->private_data; 986 struct saa7164_port *port = fh->port; 987 struct saa7164_dev *dev = port->dev; 988 989 dprintk(DBGLVL_ENC, "%s()\n", __func__); 990 991 /* Shut device down on last close */ 992 if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) { 993 if (atomic_dec_return(&port->v4l_reader_count) == 0) { 994 /* stop mpeg capture then cancel buffers */ 995 saa7164_encoder_stop_streaming(port); 996 } 997 } 998 999 file->private_data = NULL; 1000 kfree(fh); 1001 1002 return 0; 1003} 1004 1005struct saa7164_user_buffer *saa7164_enc_next_buf(struct saa7164_port *port) 1006{ 1007 struct saa7164_user_buffer *buf = 0; 1008 struct saa7164_dev *dev = port->dev; 1009 1010 mutex_lock(&port->dmaqueue_lock); 1011 if (!list_empty(&port->list_buf_used.list)) { 1012 buf = list_first_entry(&port->list_buf_used.list, 1013 struct saa7164_user_buffer, list); 1014 } 1015 mutex_unlock(&port->dmaqueue_lock); 1016 1017 dprintk(DBGLVL_ENC, "%s() returns %p\n", __func__, buf); 1018 1019 return buf; 1020} 1021 1022static ssize_t fops_read(struct file *file, char __user *buffer, 1023 size_t count, loff_t *pos) 1024{ 1025 struct saa7164_fh *fh = file->private_data; 1026 struct saa7164_port *port = fh->port; 1027 struct saa7164_user_buffer *ubuf = NULL; 1028 struct saa7164_dev *dev = port->dev; 1029 unsigned int ret = 0; 1030 int rem, cnt; 1031 u8 *p; 1032 1033 port->last_read_msecs_diff = port->last_read_msecs; 1034 port->last_read_msecs = jiffies_to_msecs(jiffies); 1035 port->last_read_msecs_diff = port->last_read_msecs - 1036 port->last_read_msecs_diff; 1037 1038 saa7164_histogram_update(&port->read_interval, 1039 port->last_read_msecs_diff); 1040 1041 if (*pos) { 1042 printk(KERN_ERR "%s() ESPIPE\n", __func__); 1043 return -ESPIPE; 1044 } 1045 1046 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1047 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1048 1049 if (saa7164_encoder_initialize(port) < 0) { 1050 printk(KERN_ERR "%s() EINVAL\n", __func__); 1051 return -EINVAL; 1052 } 1053 1054 saa7164_encoder_start_streaming(port); 1055 msleep(200); 1056 } 1057 } 1058 1059 /* blocking wait for buffer */ 1060 if ((file->f_flags & O_NONBLOCK) == 0) { 1061 if (wait_event_interruptible(port->wait_read, 1062 saa7164_enc_next_buf(port))) { 1063 printk(KERN_ERR "%s() ERESTARTSYS\n", __func__); 1064 return -ERESTARTSYS; 1065 } 1066 } 1067 1068 /* Pull the first buffer from the used list */ 1069 ubuf = saa7164_enc_next_buf(port); 1070 1071 while ((count > 0) && ubuf) { 1072 1073 /* set remaining bytes to copy */ 1074 rem = ubuf->actual_size - ubuf->pos; 1075 cnt = rem > count ? count : rem; 1076 1077 p = ubuf->data + ubuf->pos; 1078 1079 dprintk(DBGLVL_ENC, 1080 "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n", 1081 __func__, (int)count, cnt, rem, ubuf, ubuf->pos); 1082 1083 if (copy_to_user(buffer, p, cnt)) { 1084 printk(KERN_ERR "%s() copy_to_user failed\n", __func__); 1085 if (!ret) { 1086 printk(KERN_ERR "%s() EFAULT\n", __func__); 1087 ret = -EFAULT; 1088 } 1089 goto err; 1090 } 1091 1092 ubuf->pos += cnt; 1093 count -= cnt; 1094 buffer += cnt; 1095 ret += cnt; 1096 1097 if (ubuf->pos > ubuf->actual_size) { 1098 printk(KERN_ERR "read() pos > actual, huh?\n"); 1099 } 1100 1101 if (ubuf->pos == ubuf->actual_size) { 1102 1103 /* finished with current buffer, take next buffer */ 1104 1105 /* Requeue the buffer on the free list */ 1106 ubuf->pos = 0; 1107 1108 mutex_lock(&port->dmaqueue_lock); 1109 list_move_tail(&ubuf->list, &port->list_buf_free.list); 1110 mutex_unlock(&port->dmaqueue_lock); 1111 1112 /* Dequeue next */ 1113 if ((file->f_flags & O_NONBLOCK) == 0) { 1114 if (wait_event_interruptible(port->wait_read, 1115 saa7164_enc_next_buf(port))) { 1116 break; 1117 } 1118 } 1119 ubuf = saa7164_enc_next_buf(port); 1120 } 1121 } 1122err: 1123 if (!ret && !ubuf) { 1124 printk(KERN_ERR "%s() EAGAIN\n", __func__); 1125 ret = -EAGAIN; 1126 } 1127 1128 return ret; 1129} 1130 1131static unsigned int fops_poll(struct file *file, poll_table *wait) 1132{ 1133 struct saa7164_fh *fh = (struct saa7164_fh *)file->private_data; 1134 struct saa7164_port *port = fh->port; 1135 struct saa7164_user_buffer *ubuf; 1136 unsigned int mask = 0; 1137 1138 port->last_poll_msecs_diff = port->last_poll_msecs; 1139 port->last_poll_msecs = jiffies_to_msecs(jiffies); 1140 port->last_poll_msecs_diff = port->last_poll_msecs - 1141 port->last_poll_msecs_diff; 1142 1143 saa7164_histogram_update(&port->poll_interval, 1144 port->last_poll_msecs_diff); 1145 1146 if (!video_is_registered(port->v4l_device)) { 1147 return -EIO; 1148 } 1149 1150 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1151 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1152 if (saa7164_encoder_initialize(port) < 0) 1153 return -EINVAL; 1154 saa7164_encoder_start_streaming(port); 1155 msleep(200); 1156 } 1157 } 1158 1159 /* blocking wait for buffer */ 1160 if ((file->f_flags & O_NONBLOCK) == 0) { 1161 if (wait_event_interruptible(port->wait_read, 1162 saa7164_enc_next_buf(port))) { 1163 return -ERESTARTSYS; 1164 } 1165 } 1166 1167 /* Pull the first buffer from the used list */ 1168 ubuf = list_first_entry(&port->list_buf_used.list, 1169 struct saa7164_user_buffer, list); 1170 1171 if (ubuf) 1172 mask |= POLLIN | POLLRDNORM; 1173 1174 return mask; 1175} 1176 1177static const struct v4l2_file_operations mpeg_fops = { 1178 .owner = THIS_MODULE, 1179 .open = fops_open, 1180 .release = fops_release, 1181 .read = fops_read, 1182 .poll = fops_poll, 1183 .unlocked_ioctl = video_ioctl2, 1184}; 1185 1186int saa7164_g_chip_ident(struct file *file, void *fh, 1187 struct v4l2_dbg_chip_ident *chip) 1188{ 1189 struct saa7164_port *port = ((struct saa7164_fh *)fh)->port; 1190 struct saa7164_dev *dev = port->dev; 1191 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1192 1193 return 0; 1194} 1195 1196int saa7164_g_register(struct file *file, void *fh, 1197 struct v4l2_dbg_register *reg) 1198{ 1199 struct saa7164_port *port = ((struct saa7164_fh *)fh)->port; 1200 struct saa7164_dev *dev = port->dev; 1201 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1202 1203 if (!capable(CAP_SYS_ADMIN)) 1204 return -EPERM; 1205 1206 return 0; 1207} 1208 1209int saa7164_s_register(struct file *file, void *fh, 1210 struct v4l2_dbg_register *reg) 1211{ 1212 struct saa7164_port *port = ((struct saa7164_fh *)fh)->port; 1213 struct saa7164_dev *dev = port->dev; 1214 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1215 1216 if (!capable(CAP_SYS_ADMIN)) 1217 return -EPERM; 1218 1219 return 0; 1220} 1221 1222static const struct v4l2_ioctl_ops mpeg_ioctl_ops = { 1223 .vidioc_s_std = vidioc_s_std, 1224 .vidioc_enum_input = vidioc_enum_input, 1225 .vidioc_g_input = vidioc_g_input, 1226 .vidioc_s_input = vidioc_s_input, 1227 .vidioc_g_tuner = vidioc_g_tuner, 1228 .vidioc_s_tuner = vidioc_s_tuner, 1229 .vidioc_g_frequency = vidioc_g_frequency, 1230 .vidioc_s_frequency = vidioc_s_frequency, 1231 .vidioc_s_ctrl = vidioc_s_ctrl, 1232 .vidioc_g_ctrl = vidioc_g_ctrl, 1233 .vidioc_querycap = vidioc_querycap, 1234 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1235 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1236 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1237 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1238 .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls, 1239 .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, 1240 .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, 1241 .vidioc_log_status = vidioc_log_status, 1242 .vidioc_queryctrl = vidioc_queryctrl, 1243 .vidioc_g_chip_ident = saa7164_g_chip_ident, 1244#ifdef CONFIG_VIDEO_ADV_DEBUG 1245 .vidioc_g_register = saa7164_g_register, 1246 .vidioc_s_register = saa7164_s_register, 1247#endif 1248}; 1249 1250static struct video_device saa7164_mpeg_template = { 1251 .name = "saa7164", 1252 .fops = &mpeg_fops, 1253 .ioctl_ops = &mpeg_ioctl_ops, 1254 .minor = -1, 1255 .tvnorms = SAA7164_NORMS, 1256 .current_norm = V4L2_STD_NTSC_M, 1257}; 1258 1259static struct video_device *saa7164_encoder_alloc( 1260 struct saa7164_port *port, 1261 struct pci_dev *pci, 1262 struct video_device *template, 1263 char *type) 1264{ 1265 struct video_device *vfd; 1266 struct saa7164_dev *dev = port->dev; 1267 1268 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1269 1270 vfd = video_device_alloc(); 1271 if (NULL == vfd) 1272 return NULL; 1273 1274 *vfd = *template; 1275 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, 1276 type, saa7164_boards[dev->board].name); 1277 1278 vfd->parent = &pci->dev; 1279 vfd->release = video_device_release; 1280 return vfd; 1281} 1282 1283int saa7164_encoder_register(struct saa7164_port *port) 1284{ 1285 struct saa7164_dev *dev = port->dev; 1286 struct saa7164_buffer *buf; 1287 struct saa7164_user_buffer *ubuf; 1288 int result = -ENODEV, i; 1289 int len = 0; 1290 1291 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1292 1293 if (port->type != SAA7164_MPEG_ENCODER) 1294 BUG(); 1295 1296 /* Sanity check that the PCI configuration space is active */ 1297 if (port->hwcfg.BARLocation == 0) { 1298 printk(KERN_ERR "%s() failed " 1299 "(errno = %d), NO PCI configuration\n", 1300 __func__, result); 1301 result = -ENOMEM; 1302 goto failed; 1303 } 1304 1305 /* Init and establish defaults */ 1306 /* TODO: Check the umber of lines for PS */ 1307 port->hw_streamingparams.bitspersample = 8; 1308 port->hw_streamingparams.samplesperline = 188; 1309 port->hw_streamingparams.numberoflines = 1310 (SAA7164_TS_NUMBER_OF_LINES * 188) / 188; 1311 1312 port->hw_streamingparams.pitch = 188; 1313 port->hw_streamingparams.linethreshold = 0; 1314 port->hw_streamingparams.pagetablelistvirt = 0; 1315 port->hw_streamingparams.pagetablelistphys = 0; 1316 port->hw_streamingparams.numpagetables = 2 + 1317 ((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE); 1318 1319 port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount; 1320 1321 /* Allocate the PCI resources, buffers (hard) */ 1322 for (i = 0; i < port->hwcfg.buffercount; i++) { 1323 buf = saa7164_buffer_alloc(port, 1324 port->hw_streamingparams.numberoflines * 1325 port->hw_streamingparams.pitch); 1326 1327 if (!buf) { 1328 printk(KERN_ERR "%s() failed " 1329 "(errno = %d), unable to allocate buffer\n", 1330 __func__, result); 1331 result = -ENOMEM; 1332 goto failed; 1333 } else { 1334 1335 mutex_lock(&port->dmaqueue_lock); 1336 list_add_tail(&buf->list, &port->dmaqueue.list); 1337 mutex_unlock(&port->dmaqueue_lock); 1338 1339 } 1340 } 1341 1342 /* Allocate some kenrel kernel buffers for copying 1343 * to userpsace. 1344 */ 1345 len = port->hw_streamingparams.numberoflines * 1346 port->hw_streamingparams.pitch; 1347 1348 if (encoder_buffers < 16) 1349 encoder_buffers = 16; 1350 if (encoder_buffers > 512) 1351 encoder_buffers = 512; 1352 1353 for (i = 0; i < encoder_buffers; i++) { 1354 1355 ubuf = saa7164_buffer_alloc_user(dev, len); 1356 if (ubuf) { 1357 mutex_lock(&port->dmaqueue_lock); 1358 list_add_tail(&ubuf->list, &port->list_buf_free.list); 1359 mutex_unlock(&port->dmaqueue_lock); 1360 } 1361 1362 } 1363 1364 /* Establish encoder defaults here */ 1365 /* Set default TV standard */ 1366 port->encodernorm = saa7164_tvnorms[0]; 1367 port->width = 720; 1368 port->mux_input = 1; /* Composite */ 1369 port->video_format = EU_VIDEO_FORMAT_MPEG_2; 1370 port->audio_format = 0; 1371 port->video_resolution = 0; 1372 port->ctl_brightness = 127; 1373 port->ctl_contrast = 66; 1374 port->ctl_hue = 128; 1375 port->ctl_saturation = 62; 1376 port->ctl_sharpness = 8; 1377 port->encoder_params.bitrate = ENCODER_DEF_BITRATE; 1378 port->encoder_params.bitrate_peak = ENCODER_DEF_BITRATE; 1379 port->encoder_params.bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR; 1380 port->encoder_params.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS; 1381 port->encoder_params.ctl_mute = 0; 1382 port->encoder_params.ctl_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3; 1383 port->encoder_params.refdist = 1; 1384 port->encoder_params.gop_size = SAA7164_ENCODER_DEFAULT_GOP_SIZE; 1385 1386 if (port->encodernorm.id & V4L2_STD_525_60) 1387 port->height = 480; 1388 else 1389 port->height = 576; 1390 1391 /* Allocate and register the video device node */ 1392 port->v4l_device = saa7164_encoder_alloc(port, 1393 dev->pci, &saa7164_mpeg_template, "mpeg"); 1394 1395 if (port->v4l_device == NULL) { 1396 printk(KERN_INFO "%s: can't allocate mpeg device\n", 1397 dev->name); 1398 result = -ENOMEM; 1399 goto failed; 1400 } 1401 1402 result = video_register_device(port->v4l_device, 1403 VFL_TYPE_GRABBER, -1); 1404 if (result < 0) { 1405 printk(KERN_INFO "%s: can't register mpeg device\n", 1406 dev->name); 1407 /* TODO: We're going to leak here if we don't dealloc 1408 The buffers above. The unreg function can't deal wit it. 1409 */ 1410 goto failed; 1411 } 1412 1413 printk(KERN_INFO "%s: registered device video%d [mpeg]\n", 1414 dev->name, port->v4l_device->num); 1415 1416 /* Configure the hardware defaults */ 1417 saa7164_api_set_videomux(port); 1418 saa7164_api_set_usercontrol(port, PU_BRIGHTNESS_CONTROL); 1419 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 1420 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 1421 saa7164_api_set_usercontrol(port, PU_SATURATION_CONTROL); 1422 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 1423 saa7164_api_audio_mute(port, 0); 1424 saa7164_api_set_audio_volume(port, 20); 1425 saa7164_api_set_aspect_ratio(port); 1426 1427 /* Disable audio standard detection, it's buggy */ 1428 saa7164_api_set_audio_detection(port, 0); 1429 1430 saa7164_api_set_encoder(port); 1431 saa7164_api_get_encoder(port); 1432 1433 result = 0; 1434failed: 1435 return result; 1436} 1437 1438void saa7164_encoder_unregister(struct saa7164_port *port) 1439{ 1440 struct saa7164_dev *dev = port->dev; 1441 struct saa7164_buffer *buf; 1442 struct saa7164_user_buffer *ubuf; 1443 struct list_head *c, *n, *p, *q, *l, *v; 1444 1445 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 1446 1447 if (port->type != SAA7164_MPEG_ENCODER) 1448 BUG(); 1449 1450 if (port->v4l_device) { 1451 if (port->v4l_device->minor != -1) 1452 video_unregister_device(port->v4l_device); 1453 else 1454 video_device_release(port->v4l_device); 1455 1456 port->v4l_device = NULL; 1457 } 1458 1459 /* Remove any allocated buffers */ 1460 mutex_lock(&port->dmaqueue_lock); 1461 1462 dprintk(DBGLVL_ENC, "%s(port=%d) dmaqueue\n", __func__, port->nr); 1463 list_for_each_safe(c, n, &port->dmaqueue.list) { 1464 buf = list_entry(c, struct saa7164_buffer, list); 1465 list_del(c); 1466 saa7164_buffer_dealloc(buf); 1467 } 1468 1469 dprintk(DBGLVL_ENC, "%s(port=%d) used\n", __func__, port->nr); 1470 list_for_each_safe(p, q, &port->list_buf_used.list) { 1471 ubuf = list_entry(p, struct saa7164_user_buffer, list); 1472 list_del(p); 1473 saa7164_buffer_dealloc_user(ubuf); 1474 } 1475 1476 dprintk(DBGLVL_ENC, "%s(port=%d) free\n", __func__, port->nr); 1477 list_for_each_safe(l, v, &port->list_buf_free.list) { 1478 ubuf = list_entry(l, struct saa7164_user_buffer, list); 1479 list_del(l); 1480 saa7164_buffer_dealloc_user(ubuf); 1481 } 1482 1483 mutex_unlock(&port->dmaqueue_lock); 1484 dprintk(DBGLVL_ENC, "%s(port=%d) done\n", __func__, port->nr); 1485} 1486 1487