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 79static int saa7164_encoder_buffers_dealloc(struct saa7164_port *port) 80{ 81 struct list_head *c, *n, *p, *q, *l, *v; 82 struct saa7164_dev *dev = port->dev; 83 struct saa7164_buffer *buf; 84 struct saa7164_user_buffer *ubuf; 85 86 /* Remove any allocated buffers */ 87 mutex_lock(&port->dmaqueue_lock); 88 89 dprintk(DBGLVL_ENC, "%s(port=%d) dmaqueue\n", __func__, port->nr); 90 list_for_each_safe(c, n, &port->dmaqueue.list) { 91 buf = list_entry(c, struct saa7164_buffer, list); 92 list_del(c); 93 saa7164_buffer_dealloc(buf); 94 } 95 96 dprintk(DBGLVL_ENC, "%s(port=%d) used\n", __func__, port->nr); 97 list_for_each_safe(p, q, &port->list_buf_used.list) { 98 ubuf = list_entry(p, struct saa7164_user_buffer, list); 99 list_del(p); 100 saa7164_buffer_dealloc_user(ubuf); 101 } 102 103 dprintk(DBGLVL_ENC, "%s(port=%d) free\n", __func__, port->nr); 104 list_for_each_safe(l, v, &port->list_buf_free.list) { 105 ubuf = list_entry(l, struct saa7164_user_buffer, list); 106 list_del(l); 107 saa7164_buffer_dealloc_user(ubuf); 108 } 109 110 mutex_unlock(&port->dmaqueue_lock); 111 dprintk(DBGLVL_ENC, "%s(port=%d) done\n", __func__, port->nr); 112 113 return 0; 114} 115 116/* Dynamic buffer switch at encoder start time */ 117static int saa7164_encoder_buffers_alloc(struct saa7164_port *port) 118{ 119 struct saa7164_dev *dev = port->dev; 120 struct saa7164_buffer *buf; 121 struct saa7164_user_buffer *ubuf; 122 struct tmHWStreamParameters *params = &port->hw_streamingparams; 123 int result = -ENODEV, i; 124 int len = 0; 125 126 dprintk(DBGLVL_ENC, "%s()\n", __func__); 127 128 if (port->encoder_params.stream_type == 129 V4L2_MPEG_STREAM_TYPE_MPEG2_PS) { 130 dprintk(DBGLVL_ENC, 131 "%s() type=V4L2_MPEG_STREAM_TYPE_MPEG2_PS\n", 132 __func__); 133 params->samplesperline = 128; 134 params->numberoflines = 256; 135 params->pitch = 128; 136 params->numpagetables = 2 + 137 ((SAA7164_PS_NUMBER_OF_LINES * 128) / PAGE_SIZE); 138 } else 139 if (port->encoder_params.stream_type == 140 V4L2_MPEG_STREAM_TYPE_MPEG2_TS) { 141 dprintk(DBGLVL_ENC, 142 "%s() type=V4L2_MPEG_STREAM_TYPE_MPEG2_TS\n", 143 __func__); 144 params->samplesperline = 188; 145 params->numberoflines = 312; 146 params->pitch = 188; 147 params->numpagetables = 2 + 148 ((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE); 149 } else 150 BUG(); 151 152 /* Init and establish defaults */ 153 params->bitspersample = 8; 154 params->linethreshold = 0; 155 params->pagetablelistvirt = NULL; 156 params->pagetablelistphys = NULL; 157 params->numpagetableentries = port->hwcfg.buffercount; 158 159 /* Allocate the PCI resources, buffers (hard) */ 160 for (i = 0; i < port->hwcfg.buffercount; i++) { 161 buf = saa7164_buffer_alloc(port, 162 params->numberoflines * 163 params->pitch); 164 165 if (!buf) { 166 printk(KERN_ERR "%s() failed " 167 "(errno = %d), unable to allocate buffer\n", 168 __func__, result); 169 result = -ENOMEM; 170 goto failed; 171 } else { 172 173 mutex_lock(&port->dmaqueue_lock); 174 list_add_tail(&buf->list, &port->dmaqueue.list); 175 mutex_unlock(&port->dmaqueue_lock); 176 177 } 178 } 179 180 /* Allocate some kernel buffers for copying 181 * to userpsace. 182 */ 183 len = params->numberoflines * params->pitch; 184 185 if (encoder_buffers < 16) 186 encoder_buffers = 16; 187 if (encoder_buffers > 512) 188 encoder_buffers = 512; 189 190 for (i = 0; i < encoder_buffers; i++) { 191 192 ubuf = saa7164_buffer_alloc_user(dev, len); 193 if (ubuf) { 194 mutex_lock(&port->dmaqueue_lock); 195 list_add_tail(&ubuf->list, &port->list_buf_free.list); 196 mutex_unlock(&port->dmaqueue_lock); 197 } 198 199 } 200 201 result = 0; 202 203failed: 204 return result; 205} 206 207static int saa7164_encoder_initialize(struct saa7164_port *port) 208{ 209 saa7164_encoder_configure(port); 210 return 0; 211} 212 213/* -- V4L2 --------------------------------------------------------- */ 214static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) 215{ 216 struct saa7164_encoder_fh *fh = file->private_data; 217 struct saa7164_port *port = fh->port; 218 struct saa7164_dev *dev = port->dev; 219 unsigned int i; 220 221 dprintk(DBGLVL_ENC, "%s(id=0x%x)\n", __func__, (u32)id); 222 223 for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) { 224 if (id & saa7164_tvnorms[i].id) 225 break; 226 } 227 if (i == ARRAY_SIZE(saa7164_tvnorms)) 228 return -EINVAL; 229 230 port->encodernorm = saa7164_tvnorms[i]; 231 port->std = id; 232 233 /* Update the audio decoder while is not running in 234 * auto detect mode. 235 */ 236 saa7164_api_set_audio_std(port); 237 238 dprintk(DBGLVL_ENC, "%s(id=0x%x) OK\n", __func__, (u32)id); 239 240 return 0; 241} 242 243static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) 244{ 245 struct saa7164_encoder_fh *fh = file->private_data; 246 struct saa7164_port *port = fh->port; 247 248 *id = port->std; 249 return 0; 250} 251 252static int vidioc_enum_input(struct file *file, void *priv, 253 struct v4l2_input *i) 254{ 255 int n; 256 257 char *inputs[] = { "tuner", "composite", "svideo", "aux", 258 "composite 2", "svideo 2", "aux 2" }; 259 260 if (i->index >= 7) 261 return -EINVAL; 262 263 strcpy(i->name, inputs[i->index]); 264 265 if (i->index == 0) 266 i->type = V4L2_INPUT_TYPE_TUNER; 267 else 268 i->type = V4L2_INPUT_TYPE_CAMERA; 269 270 for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++) 271 i->std |= saa7164_tvnorms[n].id; 272 273 return 0; 274} 275 276static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 277{ 278 struct saa7164_encoder_fh *fh = file->private_data; 279 struct saa7164_port *port = fh->port; 280 struct saa7164_dev *dev = port->dev; 281 282 if (saa7164_api_get_videomux(port) != SAA_OK) 283 return -EIO; 284 285 *i = (port->mux_input - 1); 286 287 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, *i); 288 289 return 0; 290} 291 292static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 293{ 294 struct saa7164_encoder_fh *fh = file->private_data; 295 struct saa7164_port *port = fh->port; 296 struct saa7164_dev *dev = port->dev; 297 298 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, i); 299 300 if (i >= 7) 301 return -EINVAL; 302 303 port->mux_input = i + 1; 304 305 if (saa7164_api_set_videomux(port) != SAA_OK) 306 return -EIO; 307 308 return 0; 309} 310 311static int vidioc_g_tuner(struct file *file, void *priv, 312 struct v4l2_tuner *t) 313{ 314 struct saa7164_encoder_fh *fh = file->private_data; 315 struct saa7164_port *port = fh->port; 316 struct saa7164_dev *dev = port->dev; 317 318 if (0 != t->index) 319 return -EINVAL; 320 321 strcpy(t->name, "tuner"); 322 t->type = V4L2_TUNER_ANALOG_TV; 323 t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO; 324 325 dprintk(DBGLVL_ENC, "VIDIOC_G_TUNER: tuner type %d\n", t->type); 326 327 return 0; 328} 329 330static int vidioc_s_tuner(struct file *file, void *priv, 331 const struct v4l2_tuner *t) 332{ 333 /* Update the A/V core */ 334 return 0; 335} 336 337static int vidioc_g_frequency(struct file *file, void *priv, 338 struct v4l2_frequency *f) 339{ 340 struct saa7164_encoder_fh *fh = file->private_data; 341 struct saa7164_port *port = fh->port; 342 343 f->type = V4L2_TUNER_ANALOG_TV; 344 f->frequency = port->freq; 345 346 return 0; 347} 348 349static int vidioc_s_frequency(struct file *file, void *priv, 350 const struct v4l2_frequency *f) 351{ 352 struct saa7164_encoder_fh *fh = file->private_data; 353 struct saa7164_port *port = fh->port; 354 struct saa7164_dev *dev = port->dev; 355 struct saa7164_port *tsport; 356 struct dvb_frontend *fe; 357 358 /* TODO: Pull this for the std */ 359 struct analog_parameters params = { 360 .mode = V4L2_TUNER_ANALOG_TV, 361 .audmode = V4L2_TUNER_MODE_STEREO, 362 .std = port->encodernorm.id, 363 .frequency = f->frequency 364 }; 365 366 /* Stop the encoder */ 367 dprintk(DBGLVL_ENC, "%s() frequency=%d tuner=%d\n", __func__, 368 f->frequency, f->tuner); 369 370 if (f->tuner != 0) 371 return -EINVAL; 372 373 if (f->type != V4L2_TUNER_ANALOG_TV) 374 return -EINVAL; 375 376 port->freq = f->frequency; 377 378 /* Update the hardware */ 379 if (port->nr == SAA7164_PORT_ENC1) 380 tsport = &dev->ports[SAA7164_PORT_TS1]; 381 else 382 if (port->nr == SAA7164_PORT_ENC2) 383 tsport = &dev->ports[SAA7164_PORT_TS2]; 384 else 385 BUG(); 386 387 fe = tsport->dvb.frontend; 388 389 if (fe && fe->ops.tuner_ops.set_analog_params) 390 fe->ops.tuner_ops.set_analog_params(fe, ¶ms); 391 else 392 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); 393 394 saa7164_encoder_initialize(port); 395 396 return 0; 397} 398 399static int vidioc_g_ctrl(struct file *file, void *priv, 400 struct v4l2_control *ctl) 401{ 402 struct saa7164_encoder_fh *fh = file->private_data; 403 struct saa7164_port *port = fh->port; 404 struct saa7164_dev *dev = port->dev; 405 406 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 407 ctl->id, ctl->value); 408 409 switch (ctl->id) { 410 case V4L2_CID_BRIGHTNESS: 411 ctl->value = port->ctl_brightness; 412 break; 413 case V4L2_CID_CONTRAST: 414 ctl->value = port->ctl_contrast; 415 break; 416 case V4L2_CID_SATURATION: 417 ctl->value = port->ctl_saturation; 418 break; 419 case V4L2_CID_HUE: 420 ctl->value = port->ctl_hue; 421 break; 422 case V4L2_CID_SHARPNESS: 423 ctl->value = port->ctl_sharpness; 424 break; 425 case V4L2_CID_AUDIO_VOLUME: 426 ctl->value = port->ctl_volume; 427 break; 428 default: 429 return -EINVAL; 430 } 431 432 return 0; 433} 434 435static int vidioc_s_ctrl(struct file *file, void *priv, 436 struct v4l2_control *ctl) 437{ 438 struct saa7164_encoder_fh *fh = file->private_data; 439 struct saa7164_port *port = fh->port; 440 struct saa7164_dev *dev = port->dev; 441 int ret = 0; 442 443 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 444 ctl->id, ctl->value); 445 446 switch (ctl->id) { 447 case V4L2_CID_BRIGHTNESS: 448 if ((ctl->value >= 0) && (ctl->value <= 255)) { 449 port->ctl_brightness = ctl->value; 450 saa7164_api_set_usercontrol(port, 451 PU_BRIGHTNESS_CONTROL); 452 } else 453 ret = -EINVAL; 454 break; 455 case V4L2_CID_CONTRAST: 456 if ((ctl->value >= 0) && (ctl->value <= 255)) { 457 port->ctl_contrast = ctl->value; 458 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 459 } else 460 ret = -EINVAL; 461 break; 462 case V4L2_CID_SATURATION: 463 if ((ctl->value >= 0) && (ctl->value <= 255)) { 464 port->ctl_saturation = ctl->value; 465 saa7164_api_set_usercontrol(port, 466 PU_SATURATION_CONTROL); 467 } else 468 ret = -EINVAL; 469 break; 470 case V4L2_CID_HUE: 471 if ((ctl->value >= 0) && (ctl->value <= 255)) { 472 port->ctl_hue = ctl->value; 473 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 474 } else 475 ret = -EINVAL; 476 break; 477 case V4L2_CID_SHARPNESS: 478 if ((ctl->value >= 0) && (ctl->value <= 255)) { 479 port->ctl_sharpness = ctl->value; 480 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 481 } else 482 ret = -EINVAL; 483 break; 484 case V4L2_CID_AUDIO_VOLUME: 485 if ((ctl->value >= -83) && (ctl->value <= 24)) { 486 port->ctl_volume = ctl->value; 487 saa7164_api_set_audio_volume(port, port->ctl_volume); 488 } else 489 ret = -EINVAL; 490 break; 491 default: 492 ret = -EINVAL; 493 } 494 495 return ret; 496} 497 498static int saa7164_get_ctrl(struct saa7164_port *port, 499 struct v4l2_ext_control *ctrl) 500{ 501 struct saa7164_encoder_params *params = &port->encoder_params; 502 503 switch (ctrl->id) { 504 case V4L2_CID_MPEG_VIDEO_BITRATE: 505 ctrl->value = params->bitrate; 506 break; 507 case V4L2_CID_MPEG_STREAM_TYPE: 508 ctrl->value = params->stream_type; 509 break; 510 case V4L2_CID_MPEG_AUDIO_MUTE: 511 ctrl->value = params->ctl_mute; 512 break; 513 case V4L2_CID_MPEG_VIDEO_ASPECT: 514 ctrl->value = params->ctl_aspect; 515 break; 516 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 517 ctrl->value = params->bitrate_mode; 518 break; 519 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 520 ctrl->value = params->refdist; 521 break; 522 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 523 ctrl->value = params->bitrate_peak; 524 break; 525 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 526 ctrl->value = params->gop_size; 527 break; 528 default: 529 return -EINVAL; 530 } 531 return 0; 532} 533 534static int vidioc_g_ext_ctrls(struct file *file, void *priv, 535 struct v4l2_ext_controls *ctrls) 536{ 537 struct saa7164_encoder_fh *fh = file->private_data; 538 struct saa7164_port *port = fh->port; 539 int i, err = 0; 540 541 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 542 for (i = 0; i < ctrls->count; i++) { 543 struct v4l2_ext_control *ctrl = ctrls->controls + i; 544 545 err = saa7164_get_ctrl(port, ctrl); 546 if (err) { 547 ctrls->error_idx = i; 548 break; 549 } 550 } 551 return err; 552 553 } 554 555 return -EINVAL; 556} 557 558static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) 559{ 560 int ret = -EINVAL; 561 562 switch (ctrl->id) { 563 case V4L2_CID_MPEG_VIDEO_BITRATE: 564 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 565 (ctrl->value <= ENCODER_MAX_BITRATE)) 566 ret = 0; 567 break; 568 case V4L2_CID_MPEG_STREAM_TYPE: 569 if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) || 570 (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)) 571 ret = 0; 572 break; 573 case V4L2_CID_MPEG_AUDIO_MUTE: 574 if ((ctrl->value >= 0) && 575 (ctrl->value <= 1)) 576 ret = 0; 577 break; 578 case V4L2_CID_MPEG_VIDEO_ASPECT: 579 if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) && 580 (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100)) 581 ret = 0; 582 break; 583 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 584 if ((ctrl->value >= 0) && 585 (ctrl->value <= 255)) 586 ret = 0; 587 break; 588 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 589 if ((ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) || 590 (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)) 591 ret = 0; 592 break; 593 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 594 if ((ctrl->value >= 1) && 595 (ctrl->value <= 3)) 596 ret = 0; 597 break; 598 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 599 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 600 (ctrl->value <= ENCODER_MAX_BITRATE)) 601 ret = 0; 602 break; 603 default: 604 ret = -EINVAL; 605 } 606 607 return ret; 608} 609 610static int vidioc_try_ext_ctrls(struct file *file, void *priv, 611 struct v4l2_ext_controls *ctrls) 612{ 613 int i, err = 0; 614 615 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 616 for (i = 0; i < ctrls->count; i++) { 617 struct v4l2_ext_control *ctrl = ctrls->controls + i; 618 619 err = saa7164_try_ctrl(ctrl, 0); 620 if (err) { 621 ctrls->error_idx = i; 622 break; 623 } 624 } 625 return err; 626 } 627 628 return -EINVAL; 629} 630 631static int saa7164_set_ctrl(struct saa7164_port *port, 632 struct v4l2_ext_control *ctrl) 633{ 634 struct saa7164_encoder_params *params = &port->encoder_params; 635 int ret = 0; 636 637 switch (ctrl->id) { 638 case V4L2_CID_MPEG_VIDEO_BITRATE: 639 params->bitrate = ctrl->value; 640 break; 641 case V4L2_CID_MPEG_STREAM_TYPE: 642 params->stream_type = ctrl->value; 643 break; 644 case V4L2_CID_MPEG_AUDIO_MUTE: 645 params->ctl_mute = ctrl->value; 646 ret = saa7164_api_audio_mute(port, params->ctl_mute); 647 if (ret != SAA_OK) { 648 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 649 ret); 650 ret = -EIO; 651 } 652 break; 653 case V4L2_CID_MPEG_VIDEO_ASPECT: 654 params->ctl_aspect = ctrl->value; 655 ret = saa7164_api_set_aspect_ratio(port); 656 if (ret != SAA_OK) { 657 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 658 ret); 659 ret = -EIO; 660 } 661 break; 662 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 663 params->bitrate_mode = ctrl->value; 664 break; 665 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 666 params->refdist = ctrl->value; 667 break; 668 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 669 params->bitrate_peak = ctrl->value; 670 break; 671 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 672 params->gop_size = ctrl->value; 673 break; 674 default: 675 return -EINVAL; 676 } 677 678 /* TODO: Update the hardware */ 679 680 return ret; 681} 682 683static int vidioc_s_ext_ctrls(struct file *file, void *priv, 684 struct v4l2_ext_controls *ctrls) 685{ 686 struct saa7164_encoder_fh *fh = file->private_data; 687 struct saa7164_port *port = fh->port; 688 int i, err = 0; 689 690 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 691 for (i = 0; i < ctrls->count; i++) { 692 struct v4l2_ext_control *ctrl = ctrls->controls + i; 693 694 err = saa7164_try_ctrl(ctrl, 0); 695 if (err) { 696 ctrls->error_idx = i; 697 break; 698 } 699 err = saa7164_set_ctrl(port, ctrl); 700 if (err) { 701 ctrls->error_idx = i; 702 break; 703 } 704 } 705 return err; 706 707 } 708 709 return -EINVAL; 710} 711 712static int vidioc_querycap(struct file *file, void *priv, 713 struct v4l2_capability *cap) 714{ 715 struct saa7164_encoder_fh *fh = file->private_data; 716 struct saa7164_port *port = fh->port; 717 struct saa7164_dev *dev = port->dev; 718 719 strcpy(cap->driver, dev->name); 720 strlcpy(cap->card, saa7164_boards[dev->board].name, 721 sizeof(cap->card)); 722 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci)); 723 724 cap->device_caps = 725 V4L2_CAP_VIDEO_CAPTURE | 726 V4L2_CAP_READWRITE | 727 V4L2_CAP_TUNER; 728 729 cap->capabilities = cap->device_caps | 730 V4L2_CAP_VBI_CAPTURE | 731 V4L2_CAP_DEVICE_CAPS; 732 733 return 0; 734} 735 736static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 737 struct v4l2_fmtdesc *f) 738{ 739 if (f->index != 0) 740 return -EINVAL; 741 742 strlcpy(f->description, "MPEG", sizeof(f->description)); 743 f->pixelformat = V4L2_PIX_FMT_MPEG; 744 745 return 0; 746} 747 748static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 749 struct v4l2_format *f) 750{ 751 struct saa7164_encoder_fh *fh = file->private_data; 752 struct saa7164_port *port = fh->port; 753 struct saa7164_dev *dev = port->dev; 754 755 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 756 f->fmt.pix.bytesperline = 0; 757 f->fmt.pix.sizeimage = 758 port->ts_packet_size * port->ts_packet_count; 759 f->fmt.pix.colorspace = 0; 760 f->fmt.pix.width = port->width; 761 f->fmt.pix.height = port->height; 762 763 dprintk(DBGLVL_ENC, "VIDIOC_G_FMT: w: %d, h: %d\n", 764 port->width, port->height); 765 766 return 0; 767} 768 769static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 770 struct v4l2_format *f) 771{ 772 struct saa7164_encoder_fh *fh = file->private_data; 773 struct saa7164_port *port = fh->port; 774 struct saa7164_dev *dev = port->dev; 775 776 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 777 f->fmt.pix.bytesperline = 0; 778 f->fmt.pix.sizeimage = 779 port->ts_packet_size * port->ts_packet_count; 780 f->fmt.pix.colorspace = 0; 781 dprintk(DBGLVL_ENC, "VIDIOC_TRY_FMT: w: %d, h: %d\n", 782 port->width, port->height); 783 return 0; 784} 785 786static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 787 struct v4l2_format *f) 788{ 789 struct saa7164_encoder_fh *fh = file->private_data; 790 struct saa7164_port *port = fh->port; 791 struct saa7164_dev *dev = port->dev; 792 793 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 794 f->fmt.pix.bytesperline = 0; 795 f->fmt.pix.sizeimage = 796 port->ts_packet_size * port->ts_packet_count; 797 f->fmt.pix.colorspace = 0; 798 799 dprintk(DBGLVL_ENC, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n", 800 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); 801 802 return 0; 803} 804 805static int fill_queryctrl(struct saa7164_encoder_params *params, 806 struct v4l2_queryctrl *c) 807{ 808 switch (c->id) { 809 case V4L2_CID_BRIGHTNESS: 810 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127); 811 case V4L2_CID_CONTRAST: 812 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66); 813 case V4L2_CID_SATURATION: 814 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62); 815 case V4L2_CID_HUE: 816 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128); 817 case V4L2_CID_SHARPNESS: 818 return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8); 819 case V4L2_CID_MPEG_AUDIO_MUTE: 820 return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0); 821 case V4L2_CID_AUDIO_VOLUME: 822 return v4l2_ctrl_query_fill(c, -83, 24, 1, 20); 823 case V4L2_CID_MPEG_VIDEO_BITRATE: 824 return v4l2_ctrl_query_fill(c, 825 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 826 100000, ENCODER_DEF_BITRATE); 827 case V4L2_CID_MPEG_STREAM_TYPE: 828 return v4l2_ctrl_query_fill(c, 829 V4L2_MPEG_STREAM_TYPE_MPEG2_PS, 830 V4L2_MPEG_STREAM_TYPE_MPEG2_TS, 831 1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS); 832 case V4L2_CID_MPEG_VIDEO_ASPECT: 833 return v4l2_ctrl_query_fill(c, 834 V4L2_MPEG_VIDEO_ASPECT_1x1, 835 V4L2_MPEG_VIDEO_ASPECT_221x100, 836 1, V4L2_MPEG_VIDEO_ASPECT_4x3); 837 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 838 return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); 839 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 840 return v4l2_ctrl_query_fill(c, 841 V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, 842 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 843 1, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); 844 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 845 return v4l2_ctrl_query_fill(c, 846 1, 3, 1, 1); 847 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 848 return v4l2_ctrl_query_fill(c, 849 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 850 100000, ENCODER_DEF_BITRATE); 851 default: 852 return -EINVAL; 853 } 854} 855 856static int vidioc_queryctrl(struct file *file, void *priv, 857 struct v4l2_queryctrl *c) 858{ 859 struct saa7164_encoder_fh *fh = priv; 860 struct saa7164_port *port = fh->port; 861 int i, next; 862 u32 id = c->id; 863 864 memset(c, 0, sizeof(*c)); 865 866 next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); 867 c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; 868 869 for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) { 870 if (next) { 871 if (c->id < saa7164_v4l2_ctrls[i]) 872 c->id = saa7164_v4l2_ctrls[i]; 873 else 874 continue; 875 } 876 877 if (c->id == saa7164_v4l2_ctrls[i]) 878 return fill_queryctrl(&port->encoder_params, c); 879 880 if (c->id < saa7164_v4l2_ctrls[i]) 881 break; 882 } 883 884 return -EINVAL; 885} 886 887static int saa7164_encoder_stop_port(struct saa7164_port *port) 888{ 889 struct saa7164_dev *dev = port->dev; 890 int ret; 891 892 ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 893 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 894 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n", 895 __func__, ret); 896 ret = -EIO; 897 } else { 898 dprintk(DBGLVL_ENC, "%s() Stopped\n", __func__); 899 ret = 0; 900 } 901 902 return ret; 903} 904 905static int saa7164_encoder_acquire_port(struct saa7164_port *port) 906{ 907 struct saa7164_dev *dev = port->dev; 908 int ret; 909 910 ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 911 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 912 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n", 913 __func__, ret); 914 ret = -EIO; 915 } else { 916 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 917 ret = 0; 918 } 919 920 return ret; 921} 922 923static int saa7164_encoder_pause_port(struct saa7164_port *port) 924{ 925 struct saa7164_dev *dev = port->dev; 926 int ret; 927 928 ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 929 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 930 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n", 931 __func__, ret); 932 ret = -EIO; 933 } else { 934 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 935 ret = 0; 936 } 937 938 return ret; 939} 940 941/* Firmware is very windows centric, meaning you have to transition 942 * the part through AVStream / KS Windows stages, forwards or backwards. 943 * States are: stopped, acquired (h/w), paused, started. 944 * We have to leave here will all of the soft buffers on the free list, 945 * else the cfg_post() func won't have soft buffers to correctly configure. 946 */ 947static int saa7164_encoder_stop_streaming(struct saa7164_port *port) 948{ 949 struct saa7164_dev *dev = port->dev; 950 struct saa7164_buffer *buf; 951 struct saa7164_user_buffer *ubuf; 952 struct list_head *c, *n; 953 int ret; 954 955 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 956 957 ret = saa7164_encoder_pause_port(port); 958 ret = saa7164_encoder_acquire_port(port); 959 ret = saa7164_encoder_stop_port(port); 960 961 dprintk(DBGLVL_ENC, "%s(port=%d) Hardware stopped\n", __func__, 962 port->nr); 963 964 /* Reset the state of any allocated buffer resources */ 965 mutex_lock(&port->dmaqueue_lock); 966 967 /* Reset the hard and soft buffer state */ 968 list_for_each_safe(c, n, &port->dmaqueue.list) { 969 buf = list_entry(c, struct saa7164_buffer, list); 970 buf->flags = SAA7164_BUFFER_FREE; 971 buf->pos = 0; 972 } 973 974 list_for_each_safe(c, n, &port->list_buf_used.list) { 975 ubuf = list_entry(c, struct saa7164_user_buffer, list); 976 ubuf->pos = 0; 977 list_move_tail(&ubuf->list, &port->list_buf_free.list); 978 } 979 980 mutex_unlock(&port->dmaqueue_lock); 981 982 /* Free any allocated resources */ 983 saa7164_encoder_buffers_dealloc(port); 984 985 dprintk(DBGLVL_ENC, "%s(port=%d) Released\n", __func__, port->nr); 986 987 return ret; 988} 989 990static int saa7164_encoder_start_streaming(struct saa7164_port *port) 991{ 992 struct saa7164_dev *dev = port->dev; 993 int result, ret = 0; 994 995 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 996 997 port->done_first_interrupt = 0; 998 999 /* allocate all of the PCIe DMA buffer resources on the fly, 1000 * allowing switching between TS and PS payloads without 1001 * requiring a complete driver reload. 1002 */ 1003 saa7164_encoder_buffers_alloc(port); 1004 1005 /* Configure the encoder with any cache values */ 1006 saa7164_api_set_encoder(port); 1007 saa7164_api_get_encoder(port); 1008 1009 /* Place the empty buffers on the hardware */ 1010 saa7164_buffer_cfg_port(port); 1011 1012 /* Acquire the hardware */ 1013 result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 1014 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1015 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n", 1016 __func__, result); 1017 1018 /* Stop the hardware, regardless */ 1019 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1020 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1021 printk(KERN_ERR "%s() acquire/forced stop transition " 1022 "failed, res = 0x%x\n", __func__, result); 1023 } 1024 ret = -EIO; 1025 goto out; 1026 } else 1027 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 1028 1029 /* Pause the hardware */ 1030 result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 1031 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1032 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n", 1033 __func__, result); 1034 1035 /* Stop the hardware, regardless */ 1036 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1037 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1038 printk(KERN_ERR "%s() pause/forced stop transition " 1039 "failed, res = 0x%x\n", __func__, result); 1040 } 1041 1042 ret = -EIO; 1043 goto out; 1044 } else 1045 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 1046 1047 /* Start the hardware */ 1048 result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN); 1049 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1050 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n", 1051 __func__, result); 1052 1053 /* Stop the hardware, regardless */ 1054 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1055 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1056 printk(KERN_ERR "%s() run/forced stop transition " 1057 "failed, res = 0x%x\n", __func__, result); 1058 } 1059 1060 ret = -EIO; 1061 } else 1062 dprintk(DBGLVL_ENC, "%s() Running\n", __func__); 1063 1064out: 1065 return ret; 1066} 1067 1068static int fops_open(struct file *file) 1069{ 1070 struct saa7164_dev *dev; 1071 struct saa7164_port *port; 1072 struct saa7164_encoder_fh *fh; 1073 1074 port = (struct saa7164_port *)video_get_drvdata(video_devdata(file)); 1075 if (!port) 1076 return -ENODEV; 1077 1078 dev = port->dev; 1079 1080 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1081 1082 /* allocate + initialize per filehandle data */ 1083 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 1084 if (NULL == fh) 1085 return -ENOMEM; 1086 1087 file->private_data = fh; 1088 fh->port = port; 1089 1090 return 0; 1091} 1092 1093static int fops_release(struct file *file) 1094{ 1095 struct saa7164_encoder_fh *fh = file->private_data; 1096 struct saa7164_port *port = fh->port; 1097 struct saa7164_dev *dev = port->dev; 1098 1099 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1100 1101 /* Shut device down on last close */ 1102 if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) { 1103 if (atomic_dec_return(&port->v4l_reader_count) == 0) { 1104 /* stop mpeg capture then cancel buffers */ 1105 saa7164_encoder_stop_streaming(port); 1106 } 1107 } 1108 1109 file->private_data = NULL; 1110 kfree(fh); 1111 1112 return 0; 1113} 1114 1115static struct 1116saa7164_user_buffer *saa7164_enc_next_buf(struct saa7164_port *port) 1117{ 1118 struct saa7164_user_buffer *ubuf = NULL; 1119 struct saa7164_dev *dev = port->dev; 1120 u32 crc; 1121 1122 mutex_lock(&port->dmaqueue_lock); 1123 if (!list_empty(&port->list_buf_used.list)) { 1124 ubuf = list_first_entry(&port->list_buf_used.list, 1125 struct saa7164_user_buffer, list); 1126 1127 if (crc_checking) { 1128 crc = crc32(0, ubuf->data, ubuf->actual_size); 1129 if (crc != ubuf->crc) { 1130 printk(KERN_ERR 1131 "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n", 1132 __func__, 1133 ubuf, ubuf->crc, crc); 1134 } 1135 } 1136 1137 } 1138 mutex_unlock(&port->dmaqueue_lock); 1139 1140 dprintk(DBGLVL_ENC, "%s() returns %p\n", __func__, ubuf); 1141 1142 return ubuf; 1143} 1144 1145static ssize_t fops_read(struct file *file, char __user *buffer, 1146 size_t count, loff_t *pos) 1147{ 1148 struct saa7164_encoder_fh *fh = file->private_data; 1149 struct saa7164_port *port = fh->port; 1150 struct saa7164_user_buffer *ubuf = NULL; 1151 struct saa7164_dev *dev = port->dev; 1152 int ret = 0; 1153 int rem, cnt; 1154 u8 *p; 1155 1156 port->last_read_msecs_diff = port->last_read_msecs; 1157 port->last_read_msecs = jiffies_to_msecs(jiffies); 1158 port->last_read_msecs_diff = port->last_read_msecs - 1159 port->last_read_msecs_diff; 1160 1161 saa7164_histogram_update(&port->read_interval, 1162 port->last_read_msecs_diff); 1163 1164 if (*pos) { 1165 printk(KERN_ERR "%s() ESPIPE\n", __func__); 1166 return -ESPIPE; 1167 } 1168 1169 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1170 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1171 1172 if (saa7164_encoder_initialize(port) < 0) { 1173 printk(KERN_ERR "%s() EINVAL\n", __func__); 1174 return -EINVAL; 1175 } 1176 1177 saa7164_encoder_start_streaming(port); 1178 msleep(200); 1179 } 1180 } 1181 1182 /* blocking wait for buffer */ 1183 if ((file->f_flags & O_NONBLOCK) == 0) { 1184 if (wait_event_interruptible(port->wait_read, 1185 saa7164_enc_next_buf(port))) { 1186 printk(KERN_ERR "%s() ERESTARTSYS\n", __func__); 1187 return -ERESTARTSYS; 1188 } 1189 } 1190 1191 /* Pull the first buffer from the used list */ 1192 ubuf = saa7164_enc_next_buf(port); 1193 1194 while ((count > 0) && ubuf) { 1195 1196 /* set remaining bytes to copy */ 1197 rem = ubuf->actual_size - ubuf->pos; 1198 cnt = rem > count ? count : rem; 1199 1200 p = ubuf->data + ubuf->pos; 1201 1202 dprintk(DBGLVL_ENC, 1203 "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n", 1204 __func__, (int)count, cnt, rem, ubuf, ubuf->pos); 1205 1206 if (copy_to_user(buffer, p, cnt)) { 1207 printk(KERN_ERR "%s() copy_to_user failed\n", __func__); 1208 if (!ret) { 1209 printk(KERN_ERR "%s() EFAULT\n", __func__); 1210 ret = -EFAULT; 1211 } 1212 goto err; 1213 } 1214 1215 ubuf->pos += cnt; 1216 count -= cnt; 1217 buffer += cnt; 1218 ret += cnt; 1219 1220 if (ubuf->pos > ubuf->actual_size) 1221 printk(KERN_ERR "read() pos > actual, huh?\n"); 1222 1223 if (ubuf->pos == ubuf->actual_size) { 1224 1225 /* finished with current buffer, take next buffer */ 1226 1227 /* Requeue the buffer on the free list */ 1228 ubuf->pos = 0; 1229 1230 mutex_lock(&port->dmaqueue_lock); 1231 list_move_tail(&ubuf->list, &port->list_buf_free.list); 1232 mutex_unlock(&port->dmaqueue_lock); 1233 1234 /* Dequeue next */ 1235 if ((file->f_flags & O_NONBLOCK) == 0) { 1236 if (wait_event_interruptible(port->wait_read, 1237 saa7164_enc_next_buf(port))) { 1238 break; 1239 } 1240 } 1241 ubuf = saa7164_enc_next_buf(port); 1242 } 1243 } 1244err: 1245 if (!ret && !ubuf) 1246 ret = -EAGAIN; 1247 1248 return ret; 1249} 1250 1251static unsigned int fops_poll(struct file *file, poll_table *wait) 1252{ 1253 struct saa7164_encoder_fh *fh = 1254 (struct saa7164_encoder_fh *)file->private_data; 1255 struct saa7164_port *port = fh->port; 1256 unsigned int mask = 0; 1257 1258 port->last_poll_msecs_diff = port->last_poll_msecs; 1259 port->last_poll_msecs = jiffies_to_msecs(jiffies); 1260 port->last_poll_msecs_diff = port->last_poll_msecs - 1261 port->last_poll_msecs_diff; 1262 1263 saa7164_histogram_update(&port->poll_interval, 1264 port->last_poll_msecs_diff); 1265 1266 if (!video_is_registered(port->v4l_device)) 1267 return -EIO; 1268 1269 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1270 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1271 if (saa7164_encoder_initialize(port) < 0) 1272 return -EINVAL; 1273 saa7164_encoder_start_streaming(port); 1274 msleep(200); 1275 } 1276 } 1277 1278 /* blocking wait for buffer */ 1279 if ((file->f_flags & O_NONBLOCK) == 0) { 1280 if (wait_event_interruptible(port->wait_read, 1281 saa7164_enc_next_buf(port))) { 1282 return -ERESTARTSYS; 1283 } 1284 } 1285 1286 /* Pull the first buffer from the used list */ 1287 if (!list_empty(&port->list_buf_used.list)) 1288 mask |= POLLIN | POLLRDNORM; 1289 1290 return mask; 1291} 1292 1293static const struct v4l2_file_operations mpeg_fops = { 1294 .owner = THIS_MODULE, 1295 .open = fops_open, 1296 .release = fops_release, 1297 .read = fops_read, 1298 .poll = fops_poll, 1299 .unlocked_ioctl = video_ioctl2, 1300}; 1301 1302static const struct v4l2_ioctl_ops mpeg_ioctl_ops = { 1303 .vidioc_s_std = vidioc_s_std, 1304 .vidioc_g_std = vidioc_g_std, 1305 .vidioc_enum_input = vidioc_enum_input, 1306 .vidioc_g_input = vidioc_g_input, 1307 .vidioc_s_input = vidioc_s_input, 1308 .vidioc_g_tuner = vidioc_g_tuner, 1309 .vidioc_s_tuner = vidioc_s_tuner, 1310 .vidioc_g_frequency = vidioc_g_frequency, 1311 .vidioc_s_frequency = vidioc_s_frequency, 1312 .vidioc_s_ctrl = vidioc_s_ctrl, 1313 .vidioc_g_ctrl = vidioc_g_ctrl, 1314 .vidioc_querycap = vidioc_querycap, 1315 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1316 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1317 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1318 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1319 .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls, 1320 .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, 1321 .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, 1322 .vidioc_queryctrl = vidioc_queryctrl, 1323}; 1324 1325static struct video_device saa7164_mpeg_template = { 1326 .name = "saa7164", 1327 .fops = &mpeg_fops, 1328 .ioctl_ops = &mpeg_ioctl_ops, 1329 .minor = -1, 1330 .tvnorms = SAA7164_NORMS, 1331}; 1332 1333static struct video_device *saa7164_encoder_alloc( 1334 struct saa7164_port *port, 1335 struct pci_dev *pci, 1336 struct video_device *template, 1337 char *type) 1338{ 1339 struct video_device *vfd; 1340 struct saa7164_dev *dev = port->dev; 1341 1342 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1343 1344 vfd = video_device_alloc(); 1345 if (NULL == vfd) 1346 return NULL; 1347 1348 *vfd = *template; 1349 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, 1350 type, saa7164_boards[dev->board].name); 1351 1352 vfd->v4l2_dev = &dev->v4l2_dev; 1353 vfd->release = video_device_release; 1354 return vfd; 1355} 1356 1357int saa7164_encoder_register(struct saa7164_port *port) 1358{ 1359 struct saa7164_dev *dev = port->dev; 1360 int result = -ENODEV; 1361 1362 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1363 1364 if (port->type != SAA7164_MPEG_ENCODER) 1365 BUG(); 1366 1367 /* Sanity check that the PCI configuration space is active */ 1368 if (port->hwcfg.BARLocation == 0) { 1369 printk(KERN_ERR "%s() failed " 1370 "(errno = %d), NO PCI configuration\n", 1371 __func__, result); 1372 result = -ENOMEM; 1373 goto failed; 1374 } 1375 1376 /* Establish encoder defaults here */ 1377 /* Set default TV standard */ 1378 port->encodernorm = saa7164_tvnorms[0]; 1379 port->width = 720; 1380 port->mux_input = 1; /* Composite */ 1381 port->video_format = EU_VIDEO_FORMAT_MPEG_2; 1382 port->audio_format = 0; 1383 port->video_resolution = 0; 1384 port->ctl_brightness = 127; 1385 port->ctl_contrast = 66; 1386 port->ctl_hue = 128; 1387 port->ctl_saturation = 62; 1388 port->ctl_sharpness = 8; 1389 port->encoder_params.bitrate = ENCODER_DEF_BITRATE; 1390 port->encoder_params.bitrate_peak = ENCODER_DEF_BITRATE; 1391 port->encoder_params.bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR; 1392 port->encoder_params.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS; 1393 port->encoder_params.ctl_mute = 0; 1394 port->encoder_params.ctl_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3; 1395 port->encoder_params.refdist = 1; 1396 port->encoder_params.gop_size = SAA7164_ENCODER_DEFAULT_GOP_SIZE; 1397 port->std = V4L2_STD_NTSC_M; 1398 1399 if (port->encodernorm.id & V4L2_STD_525_60) 1400 port->height = 480; 1401 else 1402 port->height = 576; 1403 1404 /* Allocate and register the video device node */ 1405 port->v4l_device = saa7164_encoder_alloc(port, 1406 dev->pci, &saa7164_mpeg_template, "mpeg"); 1407 1408 if (!port->v4l_device) { 1409 printk(KERN_INFO "%s: can't allocate mpeg device\n", 1410 dev->name); 1411 result = -ENOMEM; 1412 goto failed; 1413 } 1414 1415 video_set_drvdata(port->v4l_device, port); 1416 result = video_register_device(port->v4l_device, 1417 VFL_TYPE_GRABBER, -1); 1418 if (result < 0) { 1419 printk(KERN_INFO "%s: can't register mpeg device\n", 1420 dev->name); 1421 /* TODO: We're going to leak here if we don't dealloc 1422 The buffers above. The unreg function can't deal wit it. 1423 */ 1424 goto failed; 1425 } 1426 1427 printk(KERN_INFO "%s: registered device video%d [mpeg]\n", 1428 dev->name, port->v4l_device->num); 1429 1430 /* Configure the hardware defaults */ 1431 saa7164_api_set_videomux(port); 1432 saa7164_api_set_usercontrol(port, PU_BRIGHTNESS_CONTROL); 1433 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 1434 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 1435 saa7164_api_set_usercontrol(port, PU_SATURATION_CONTROL); 1436 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 1437 saa7164_api_audio_mute(port, 0); 1438 saa7164_api_set_audio_volume(port, 20); 1439 saa7164_api_set_aspect_ratio(port); 1440 1441 /* Disable audio standard detection, it's buggy */ 1442 saa7164_api_set_audio_detection(port, 0); 1443 1444 saa7164_api_set_encoder(port); 1445 saa7164_api_get_encoder(port); 1446 1447 result = 0; 1448failed: 1449 return result; 1450} 1451 1452void saa7164_encoder_unregister(struct saa7164_port *port) 1453{ 1454 struct saa7164_dev *dev = port->dev; 1455 1456 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 1457 1458 if (port->type != SAA7164_MPEG_ENCODER) 1459 BUG(); 1460 1461 if (port->v4l_device) { 1462 if (port->v4l_device->minor != -1) 1463 video_unregister_device(port->v4l_device); 1464 else 1465 video_device_release(port->v4l_device); 1466 1467 port->v4l_device = NULL; 1468 } 1469 1470 dprintk(DBGLVL_ENC, "%s(port=%d) done\n", __func__, port->nr); 1471} 1472 1473