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]; 231 232 /* Update the audio decoder while is not running in 233 * auto detect mode. 234 */ 235 saa7164_api_set_audio_std(port); 236 237 dprintk(DBGLVL_ENC, "%s(id=0x%x) OK\n", __func__, (u32)*id); 238 239 return 0; 240} 241 242static int vidioc_enum_input(struct file *file, void *priv, 243 struct v4l2_input *i) 244{ 245 int n; 246 247 char *inputs[] = { "tuner", "composite", "svideo", "aux", 248 "composite 2", "svideo 2", "aux 2" }; 249 250 if (i->index >= 7) 251 return -EINVAL; 252 253 strcpy(i->name, inputs[i->index]); 254 255 if (i->index == 0) 256 i->type = V4L2_INPUT_TYPE_TUNER; 257 else 258 i->type = V4L2_INPUT_TYPE_CAMERA; 259 260 for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++) 261 i->std |= saa7164_tvnorms[n].id; 262 263 return 0; 264} 265 266static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 267{ 268 struct saa7164_encoder_fh *fh = file->private_data; 269 struct saa7164_port *port = fh->port; 270 struct saa7164_dev *dev = port->dev; 271 272 if (saa7164_api_get_videomux(port) != SAA_OK) 273 return -EIO; 274 275 *i = (port->mux_input - 1); 276 277 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, *i); 278 279 return 0; 280} 281 282static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 283{ 284 struct saa7164_encoder_fh *fh = file->private_data; 285 struct saa7164_port *port = fh->port; 286 struct saa7164_dev *dev = port->dev; 287 288 dprintk(DBGLVL_ENC, "%s() input=%d\n", __func__, i); 289 290 if (i >= 7) 291 return -EINVAL; 292 293 port->mux_input = i + 1; 294 295 if (saa7164_api_set_videomux(port) != SAA_OK) 296 return -EIO; 297 298 return 0; 299} 300 301static int vidioc_g_tuner(struct file *file, void *priv, 302 struct v4l2_tuner *t) 303{ 304 struct saa7164_encoder_fh *fh = file->private_data; 305 struct saa7164_port *port = fh->port; 306 struct saa7164_dev *dev = port->dev; 307 308 if (0 != t->index) 309 return -EINVAL; 310 311 strcpy(t->name, "tuner"); 312 t->type = V4L2_TUNER_ANALOG_TV; 313 t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO; 314 315 dprintk(DBGLVL_ENC, "VIDIOC_G_TUNER: tuner type %d\n", t->type); 316 317 return 0; 318} 319 320static int vidioc_s_tuner(struct file *file, void *priv, 321 struct v4l2_tuner *t) 322{ 323 /* Update the A/V core */ 324 return 0; 325} 326 327static int vidioc_g_frequency(struct file *file, void *priv, 328 struct v4l2_frequency *f) 329{ 330 struct saa7164_encoder_fh *fh = file->private_data; 331 struct saa7164_port *port = fh->port; 332 333 f->type = V4L2_TUNER_ANALOG_TV; 334 f->frequency = port->freq; 335 336 return 0; 337} 338 339static int vidioc_s_frequency(struct file *file, void *priv, 340 struct v4l2_frequency *f) 341{ 342 struct saa7164_encoder_fh *fh = file->private_data; 343 struct saa7164_port *port = fh->port; 344 struct saa7164_dev *dev = port->dev; 345 struct saa7164_port *tsport; 346 struct dvb_frontend *fe; 347 348 /* TODO: Pull this for the std */ 349 struct analog_parameters params = { 350 .mode = V4L2_TUNER_ANALOG_TV, 351 .audmode = V4L2_TUNER_MODE_STEREO, 352 .std = port->encodernorm.id, 353 .frequency = f->frequency 354 }; 355 356 /* Stop the encoder */ 357 dprintk(DBGLVL_ENC, "%s() frequency=%d tuner=%d\n", __func__, 358 f->frequency, f->tuner); 359 360 if (f->tuner != 0) 361 return -EINVAL; 362 363 if (f->type != V4L2_TUNER_ANALOG_TV) 364 return -EINVAL; 365 366 port->freq = f->frequency; 367 368 /* Update the hardware */ 369 if (port->nr == SAA7164_PORT_ENC1) 370 tsport = &dev->ports[SAA7164_PORT_TS1]; 371 else 372 if (port->nr == SAA7164_PORT_ENC2) 373 tsport = &dev->ports[SAA7164_PORT_TS2]; 374 else 375 BUG(); 376 377 fe = tsport->dvb.frontend; 378 379 if (fe && fe->ops.tuner_ops.set_analog_params) 380 fe->ops.tuner_ops.set_analog_params(fe, ¶ms); 381 else 382 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); 383 384 saa7164_encoder_initialize(port); 385 386 return 0; 387} 388 389static int vidioc_g_ctrl(struct file *file, void *priv, 390 struct v4l2_control *ctl) 391{ 392 struct saa7164_encoder_fh *fh = file->private_data; 393 struct saa7164_port *port = fh->port; 394 struct saa7164_dev *dev = port->dev; 395 396 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 397 ctl->id, ctl->value); 398 399 switch (ctl->id) { 400 case V4L2_CID_BRIGHTNESS: 401 ctl->value = port->ctl_brightness; 402 break; 403 case V4L2_CID_CONTRAST: 404 ctl->value = port->ctl_contrast; 405 break; 406 case V4L2_CID_SATURATION: 407 ctl->value = port->ctl_saturation; 408 break; 409 case V4L2_CID_HUE: 410 ctl->value = port->ctl_hue; 411 break; 412 case V4L2_CID_SHARPNESS: 413 ctl->value = port->ctl_sharpness; 414 break; 415 case V4L2_CID_AUDIO_VOLUME: 416 ctl->value = port->ctl_volume; 417 break; 418 default: 419 return -EINVAL; 420 } 421 422 return 0; 423} 424 425static int vidioc_s_ctrl(struct file *file, void *priv, 426 struct v4l2_control *ctl) 427{ 428 struct saa7164_encoder_fh *fh = file->private_data; 429 struct saa7164_port *port = fh->port; 430 struct saa7164_dev *dev = port->dev; 431 int ret = 0; 432 433 dprintk(DBGLVL_ENC, "%s(id=%d, value=%d)\n", __func__, 434 ctl->id, ctl->value); 435 436 switch (ctl->id) { 437 case V4L2_CID_BRIGHTNESS: 438 if ((ctl->value >= 0) && (ctl->value <= 255)) { 439 port->ctl_brightness = ctl->value; 440 saa7164_api_set_usercontrol(port, 441 PU_BRIGHTNESS_CONTROL); 442 } else 443 ret = -EINVAL; 444 break; 445 case V4L2_CID_CONTRAST: 446 if ((ctl->value >= 0) && (ctl->value <= 255)) { 447 port->ctl_contrast = ctl->value; 448 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 449 } else 450 ret = -EINVAL; 451 break; 452 case V4L2_CID_SATURATION: 453 if ((ctl->value >= 0) && (ctl->value <= 255)) { 454 port->ctl_saturation = ctl->value; 455 saa7164_api_set_usercontrol(port, 456 PU_SATURATION_CONTROL); 457 } else 458 ret = -EINVAL; 459 break; 460 case V4L2_CID_HUE: 461 if ((ctl->value >= 0) && (ctl->value <= 255)) { 462 port->ctl_hue = ctl->value; 463 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 464 } else 465 ret = -EINVAL; 466 break; 467 case V4L2_CID_SHARPNESS: 468 if ((ctl->value >= 0) && (ctl->value <= 255)) { 469 port->ctl_sharpness = ctl->value; 470 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 471 } else 472 ret = -EINVAL; 473 break; 474 case V4L2_CID_AUDIO_VOLUME: 475 if ((ctl->value >= -83) && (ctl->value <= 24)) { 476 port->ctl_volume = ctl->value; 477 saa7164_api_set_audio_volume(port, port->ctl_volume); 478 } else 479 ret = -EINVAL; 480 break; 481 default: 482 ret = -EINVAL; 483 } 484 485 return ret; 486} 487 488static int saa7164_get_ctrl(struct saa7164_port *port, 489 struct v4l2_ext_control *ctrl) 490{ 491 struct saa7164_encoder_params *params = &port->encoder_params; 492 493 switch (ctrl->id) { 494 case V4L2_CID_MPEG_VIDEO_BITRATE: 495 ctrl->value = params->bitrate; 496 break; 497 case V4L2_CID_MPEG_STREAM_TYPE: 498 ctrl->value = params->stream_type; 499 break; 500 case V4L2_CID_MPEG_AUDIO_MUTE: 501 ctrl->value = params->ctl_mute; 502 break; 503 case V4L2_CID_MPEG_VIDEO_ASPECT: 504 ctrl->value = params->ctl_aspect; 505 break; 506 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 507 ctrl->value = params->bitrate_mode; 508 break; 509 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 510 ctrl->value = params->refdist; 511 break; 512 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 513 ctrl->value = params->bitrate_peak; 514 break; 515 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 516 ctrl->value = params->gop_size; 517 break; 518 default: 519 return -EINVAL; 520 } 521 return 0; 522} 523 524static int vidioc_g_ext_ctrls(struct file *file, void *priv, 525 struct v4l2_ext_controls *ctrls) 526{ 527 struct saa7164_encoder_fh *fh = file->private_data; 528 struct saa7164_port *port = fh->port; 529 int i, err = 0; 530 531 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 532 for (i = 0; i < ctrls->count; i++) { 533 struct v4l2_ext_control *ctrl = ctrls->controls + i; 534 535 err = saa7164_get_ctrl(port, ctrl); 536 if (err) { 537 ctrls->error_idx = i; 538 break; 539 } 540 } 541 return err; 542 543 } 544 545 return -EINVAL; 546} 547 548static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) 549{ 550 int ret = -EINVAL; 551 552 switch (ctrl->id) { 553 case V4L2_CID_MPEG_VIDEO_BITRATE: 554 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 555 (ctrl->value <= ENCODER_MAX_BITRATE)) 556 ret = 0; 557 break; 558 case V4L2_CID_MPEG_STREAM_TYPE: 559 if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) || 560 (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)) 561 ret = 0; 562 break; 563 case V4L2_CID_MPEG_AUDIO_MUTE: 564 if ((ctrl->value >= 0) && 565 (ctrl->value <= 1)) 566 ret = 0; 567 break; 568 case V4L2_CID_MPEG_VIDEO_ASPECT: 569 if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) && 570 (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100)) 571 ret = 0; 572 break; 573 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 574 if ((ctrl->value >= 0) && 575 (ctrl->value <= 255)) 576 ret = 0; 577 break; 578 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 579 if ((ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) || 580 (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)) 581 ret = 0; 582 break; 583 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 584 if ((ctrl->value >= 1) && 585 (ctrl->value <= 3)) 586 ret = 0; 587 break; 588 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 589 if ((ctrl->value >= ENCODER_MIN_BITRATE) && 590 (ctrl->value <= ENCODER_MAX_BITRATE)) 591 ret = 0; 592 break; 593 default: 594 ret = -EINVAL; 595 } 596 597 return ret; 598} 599 600static int vidioc_try_ext_ctrls(struct file *file, void *priv, 601 struct v4l2_ext_controls *ctrls) 602{ 603 int i, err = 0; 604 605 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 606 for (i = 0; i < ctrls->count; i++) { 607 struct v4l2_ext_control *ctrl = ctrls->controls + i; 608 609 err = saa7164_try_ctrl(ctrl, 0); 610 if (err) { 611 ctrls->error_idx = i; 612 break; 613 } 614 } 615 return err; 616 } 617 618 return -EINVAL; 619} 620 621static int saa7164_set_ctrl(struct saa7164_port *port, 622 struct v4l2_ext_control *ctrl) 623{ 624 struct saa7164_encoder_params *params = &port->encoder_params; 625 int ret = 0; 626 627 switch (ctrl->id) { 628 case V4L2_CID_MPEG_VIDEO_BITRATE: 629 params->bitrate = ctrl->value; 630 break; 631 case V4L2_CID_MPEG_STREAM_TYPE: 632 params->stream_type = ctrl->value; 633 break; 634 case V4L2_CID_MPEG_AUDIO_MUTE: 635 params->ctl_mute = ctrl->value; 636 ret = saa7164_api_audio_mute(port, params->ctl_mute); 637 if (ret != SAA_OK) { 638 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 639 ret); 640 ret = -EIO; 641 } 642 break; 643 case V4L2_CID_MPEG_VIDEO_ASPECT: 644 params->ctl_aspect = ctrl->value; 645 ret = saa7164_api_set_aspect_ratio(port); 646 if (ret != SAA_OK) { 647 printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, 648 ret); 649 ret = -EIO; 650 } 651 break; 652 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 653 params->bitrate_mode = ctrl->value; 654 break; 655 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 656 params->refdist = ctrl->value; 657 break; 658 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 659 params->bitrate_peak = ctrl->value; 660 break; 661 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 662 params->gop_size = ctrl->value; 663 break; 664 default: 665 return -EINVAL; 666 } 667 668 /* TODO: Update the hardware */ 669 670 return ret; 671} 672 673static int vidioc_s_ext_ctrls(struct file *file, void *priv, 674 struct v4l2_ext_controls *ctrls) 675{ 676 struct saa7164_encoder_fh *fh = file->private_data; 677 struct saa7164_port *port = fh->port; 678 int i, err = 0; 679 680 if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { 681 for (i = 0; i < ctrls->count; i++) { 682 struct v4l2_ext_control *ctrl = ctrls->controls + i; 683 684 err = saa7164_try_ctrl(ctrl, 0); 685 if (err) { 686 ctrls->error_idx = i; 687 break; 688 } 689 err = saa7164_set_ctrl(port, ctrl); 690 if (err) { 691 ctrls->error_idx = i; 692 break; 693 } 694 } 695 return err; 696 697 } 698 699 return -EINVAL; 700} 701 702static int vidioc_querycap(struct file *file, void *priv, 703 struct v4l2_capability *cap) 704{ 705 struct saa7164_encoder_fh *fh = file->private_data; 706 struct saa7164_port *port = fh->port; 707 struct saa7164_dev *dev = port->dev; 708 709 strcpy(cap->driver, dev->name); 710 strlcpy(cap->card, saa7164_boards[dev->board].name, 711 sizeof(cap->card)); 712 sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci)); 713 714 cap->capabilities = 715 V4L2_CAP_VIDEO_CAPTURE | 716 V4L2_CAP_READWRITE | 717 0; 718 719 cap->capabilities |= V4L2_CAP_TUNER; 720 cap->version = 0; 721 722 return 0; 723} 724 725static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 726 struct v4l2_fmtdesc *f) 727{ 728 if (f->index != 0) 729 return -EINVAL; 730 731 strlcpy(f->description, "MPEG", sizeof(f->description)); 732 f->pixelformat = V4L2_PIX_FMT_MPEG; 733 734 return 0; 735} 736 737static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 738 struct v4l2_format *f) 739{ 740 struct saa7164_encoder_fh *fh = file->private_data; 741 struct saa7164_port *port = fh->port; 742 struct saa7164_dev *dev = port->dev; 743 744 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 745 f->fmt.pix.bytesperline = 0; 746 f->fmt.pix.sizeimage = 747 port->ts_packet_size * port->ts_packet_count; 748 f->fmt.pix.colorspace = 0; 749 f->fmt.pix.width = port->width; 750 f->fmt.pix.height = port->height; 751 752 dprintk(DBGLVL_ENC, "VIDIOC_G_FMT: w: %d, h: %d\n", 753 port->width, port->height); 754 755 return 0; 756} 757 758static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 759 struct v4l2_format *f) 760{ 761 struct saa7164_encoder_fh *fh = file->private_data; 762 struct saa7164_port *port = fh->port; 763 struct saa7164_dev *dev = port->dev; 764 765 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 766 f->fmt.pix.bytesperline = 0; 767 f->fmt.pix.sizeimage = 768 port->ts_packet_size * port->ts_packet_count; 769 f->fmt.pix.colorspace = 0; 770 dprintk(DBGLVL_ENC, "VIDIOC_TRY_FMT: w: %d, h: %d\n", 771 port->width, port->height); 772 return 0; 773} 774 775static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 776 struct v4l2_format *f) 777{ 778 struct saa7164_encoder_fh *fh = file->private_data; 779 struct saa7164_port *port = fh->port; 780 struct saa7164_dev *dev = port->dev; 781 782 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; 783 f->fmt.pix.bytesperline = 0; 784 f->fmt.pix.sizeimage = 785 port->ts_packet_size * port->ts_packet_count; 786 f->fmt.pix.colorspace = 0; 787 788 dprintk(DBGLVL_ENC, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n", 789 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); 790 791 return 0; 792} 793 794static int fill_queryctrl(struct saa7164_encoder_params *params, 795 struct v4l2_queryctrl *c) 796{ 797 switch (c->id) { 798 case V4L2_CID_BRIGHTNESS: 799 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127); 800 case V4L2_CID_CONTRAST: 801 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66); 802 case V4L2_CID_SATURATION: 803 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62); 804 case V4L2_CID_HUE: 805 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128); 806 case V4L2_CID_SHARPNESS: 807 return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8); 808 case V4L2_CID_MPEG_AUDIO_MUTE: 809 return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0); 810 case V4L2_CID_AUDIO_VOLUME: 811 return v4l2_ctrl_query_fill(c, -83, 24, 1, 20); 812 case V4L2_CID_MPEG_VIDEO_BITRATE: 813 return v4l2_ctrl_query_fill(c, 814 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 815 100000, ENCODER_DEF_BITRATE); 816 case V4L2_CID_MPEG_STREAM_TYPE: 817 return v4l2_ctrl_query_fill(c, 818 V4L2_MPEG_STREAM_TYPE_MPEG2_PS, 819 V4L2_MPEG_STREAM_TYPE_MPEG2_TS, 820 1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS); 821 case V4L2_CID_MPEG_VIDEO_ASPECT: 822 return v4l2_ctrl_query_fill(c, 823 V4L2_MPEG_VIDEO_ASPECT_1x1, 824 V4L2_MPEG_VIDEO_ASPECT_221x100, 825 1, V4L2_MPEG_VIDEO_ASPECT_4x3); 826 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 827 return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); 828 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: 829 return v4l2_ctrl_query_fill(c, 830 V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, 831 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 832 1, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); 833 case V4L2_CID_MPEG_VIDEO_B_FRAMES: 834 return v4l2_ctrl_query_fill(c, 835 1, 3, 1, 1); 836 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: 837 return v4l2_ctrl_query_fill(c, 838 ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE, 839 100000, ENCODER_DEF_BITRATE); 840 default: 841 return -EINVAL; 842 } 843} 844 845static int vidioc_queryctrl(struct file *file, void *priv, 846 struct v4l2_queryctrl *c) 847{ 848 struct saa7164_encoder_fh *fh = priv; 849 struct saa7164_port *port = fh->port; 850 int i, next; 851 u32 id = c->id; 852 853 memset(c, 0, sizeof(*c)); 854 855 next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); 856 c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; 857 858 for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) { 859 if (next) { 860 if (c->id < saa7164_v4l2_ctrls[i]) 861 c->id = saa7164_v4l2_ctrls[i]; 862 else 863 continue; 864 } 865 866 if (c->id == saa7164_v4l2_ctrls[i]) 867 return fill_queryctrl(&port->encoder_params, c); 868 869 if (c->id < saa7164_v4l2_ctrls[i]) 870 break; 871 } 872 873 return -EINVAL; 874} 875 876static int saa7164_encoder_stop_port(struct saa7164_port *port) 877{ 878 struct saa7164_dev *dev = port->dev; 879 int ret; 880 881 ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 882 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 883 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n", 884 __func__, ret); 885 ret = -EIO; 886 } else { 887 dprintk(DBGLVL_ENC, "%s() Stopped\n", __func__); 888 ret = 0; 889 } 890 891 return ret; 892} 893 894static int saa7164_encoder_acquire_port(struct saa7164_port *port) 895{ 896 struct saa7164_dev *dev = port->dev; 897 int ret; 898 899 ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 900 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 901 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n", 902 __func__, ret); 903 ret = -EIO; 904 } else { 905 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 906 ret = 0; 907 } 908 909 return ret; 910} 911 912static int saa7164_encoder_pause_port(struct saa7164_port *port) 913{ 914 struct saa7164_dev *dev = port->dev; 915 int ret; 916 917 ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 918 if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { 919 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n", 920 __func__, ret); 921 ret = -EIO; 922 } else { 923 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 924 ret = 0; 925 } 926 927 return ret; 928} 929 930/* Firmware is very windows centric, meaning you have to transition 931 * the part through AVStream / KS Windows stages, forwards or backwards. 932 * States are: stopped, acquired (h/w), paused, started. 933 * We have to leave here will all of the soft buffers on the free list, 934 * else the cfg_post() func won't have soft buffers to correctly configure. 935 */ 936static int saa7164_encoder_stop_streaming(struct saa7164_port *port) 937{ 938 struct saa7164_dev *dev = port->dev; 939 struct saa7164_buffer *buf; 940 struct saa7164_user_buffer *ubuf; 941 struct list_head *c, *n; 942 int ret; 943 944 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 945 946 ret = saa7164_encoder_pause_port(port); 947 ret = saa7164_encoder_acquire_port(port); 948 ret = saa7164_encoder_stop_port(port); 949 950 dprintk(DBGLVL_ENC, "%s(port=%d) Hardware stopped\n", __func__, 951 port->nr); 952 953 /* Reset the state of any allocated buffer resources */ 954 mutex_lock(&port->dmaqueue_lock); 955 956 /* Reset the hard and soft buffer state */ 957 list_for_each_safe(c, n, &port->dmaqueue.list) { 958 buf = list_entry(c, struct saa7164_buffer, list); 959 buf->flags = SAA7164_BUFFER_FREE; 960 buf->pos = 0; 961 } 962 963 list_for_each_safe(c, n, &port->list_buf_used.list) { 964 ubuf = list_entry(c, struct saa7164_user_buffer, list); 965 ubuf->pos = 0; 966 list_move_tail(&ubuf->list, &port->list_buf_free.list); 967 } 968 969 mutex_unlock(&port->dmaqueue_lock); 970 971 /* Free any allocated resources */ 972 saa7164_encoder_buffers_dealloc(port); 973 974 dprintk(DBGLVL_ENC, "%s(port=%d) Released\n", __func__, port->nr); 975 976 return ret; 977} 978 979static int saa7164_encoder_start_streaming(struct saa7164_port *port) 980{ 981 struct saa7164_dev *dev = port->dev; 982 int result, ret = 0; 983 984 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 985 986 port->done_first_interrupt = 0; 987 988 /* allocate all of the PCIe DMA buffer resources on the fly, 989 * allowing switching between TS and PS payloads without 990 * requiring a complete driver reload. 991 */ 992 saa7164_encoder_buffers_alloc(port); 993 994 /* Configure the encoder with any cache values */ 995 saa7164_api_set_encoder(port); 996 saa7164_api_get_encoder(port); 997 998 /* Place the empty buffers on the hardware */ 999 saa7164_buffer_cfg_port(port); 1000 1001 /* Acquire the hardware */ 1002 result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); 1003 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1004 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n", 1005 __func__, result); 1006 1007 /* Stop the hardware, regardless */ 1008 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1009 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1010 printk(KERN_ERR "%s() acquire/forced stop transition " 1011 "failed, res = 0x%x\n", __func__, result); 1012 } 1013 ret = -EIO; 1014 goto out; 1015 } else 1016 dprintk(DBGLVL_ENC, "%s() Acquired\n", __func__); 1017 1018 /* Pause the hardware */ 1019 result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); 1020 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1021 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n", 1022 __func__, result); 1023 1024 /* Stop the hardware, regardless */ 1025 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1026 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1027 printk(KERN_ERR "%s() pause/forced stop transition " 1028 "failed, res = 0x%x\n", __func__, result); 1029 } 1030 1031 ret = -EIO; 1032 goto out; 1033 } else 1034 dprintk(DBGLVL_ENC, "%s() Paused\n", __func__); 1035 1036 /* Start the hardware */ 1037 result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN); 1038 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1039 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n", 1040 __func__, result); 1041 1042 /* Stop the hardware, regardless */ 1043 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); 1044 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { 1045 printk(KERN_ERR "%s() run/forced stop transition " 1046 "failed, res = 0x%x\n", __func__, result); 1047 } 1048 1049 ret = -EIO; 1050 } else 1051 dprintk(DBGLVL_ENC, "%s() Running\n", __func__); 1052 1053out: 1054 return ret; 1055} 1056 1057static int fops_open(struct file *file) 1058{ 1059 struct saa7164_dev *dev; 1060 struct saa7164_port *port; 1061 struct saa7164_encoder_fh *fh; 1062 1063 port = (struct saa7164_port *)video_get_drvdata(video_devdata(file)); 1064 if (!port) 1065 return -ENODEV; 1066 1067 dev = port->dev; 1068 1069 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1070 1071 /* allocate + initialize per filehandle data */ 1072 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 1073 if (NULL == fh) 1074 return -ENOMEM; 1075 1076 file->private_data = fh; 1077 fh->port = port; 1078 1079 return 0; 1080} 1081 1082static int fops_release(struct file *file) 1083{ 1084 struct saa7164_encoder_fh *fh = file->private_data; 1085 struct saa7164_port *port = fh->port; 1086 struct saa7164_dev *dev = port->dev; 1087 1088 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1089 1090 /* Shut device down on last close */ 1091 if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) { 1092 if (atomic_dec_return(&port->v4l_reader_count) == 0) { 1093 /* stop mpeg capture then cancel buffers */ 1094 saa7164_encoder_stop_streaming(port); 1095 } 1096 } 1097 1098 file->private_data = NULL; 1099 kfree(fh); 1100 1101 return 0; 1102} 1103 1104struct saa7164_user_buffer *saa7164_enc_next_buf(struct saa7164_port *port) 1105{ 1106 struct saa7164_user_buffer *ubuf = NULL; 1107 struct saa7164_dev *dev = port->dev; 1108 u32 crc; 1109 1110 mutex_lock(&port->dmaqueue_lock); 1111 if (!list_empty(&port->list_buf_used.list)) { 1112 ubuf = list_first_entry(&port->list_buf_used.list, 1113 struct saa7164_user_buffer, list); 1114 1115 if (crc_checking) { 1116 crc = crc32(0, ubuf->data, ubuf->actual_size); 1117 if (crc != ubuf->crc) { 1118 printk(KERN_ERR 1119 "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n", 1120 __func__, 1121 ubuf, ubuf->crc, crc); 1122 } 1123 } 1124 1125 } 1126 mutex_unlock(&port->dmaqueue_lock); 1127 1128 dprintk(DBGLVL_ENC, "%s() returns %p\n", __func__, ubuf); 1129 1130 return ubuf; 1131} 1132 1133static ssize_t fops_read(struct file *file, char __user *buffer, 1134 size_t count, loff_t *pos) 1135{ 1136 struct saa7164_encoder_fh *fh = file->private_data; 1137 struct saa7164_port *port = fh->port; 1138 struct saa7164_user_buffer *ubuf = NULL; 1139 struct saa7164_dev *dev = port->dev; 1140 int ret = 0; 1141 int rem, cnt; 1142 u8 *p; 1143 1144 port->last_read_msecs_diff = port->last_read_msecs; 1145 port->last_read_msecs = jiffies_to_msecs(jiffies); 1146 port->last_read_msecs_diff = port->last_read_msecs - 1147 port->last_read_msecs_diff; 1148 1149 saa7164_histogram_update(&port->read_interval, 1150 port->last_read_msecs_diff); 1151 1152 if (*pos) { 1153 printk(KERN_ERR "%s() ESPIPE\n", __func__); 1154 return -ESPIPE; 1155 } 1156 1157 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1158 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1159 1160 if (saa7164_encoder_initialize(port) < 0) { 1161 printk(KERN_ERR "%s() EINVAL\n", __func__); 1162 return -EINVAL; 1163 } 1164 1165 saa7164_encoder_start_streaming(port); 1166 msleep(200); 1167 } 1168 } 1169 1170 /* blocking wait for buffer */ 1171 if ((file->f_flags & O_NONBLOCK) == 0) { 1172 if (wait_event_interruptible(port->wait_read, 1173 saa7164_enc_next_buf(port))) { 1174 printk(KERN_ERR "%s() ERESTARTSYS\n", __func__); 1175 return -ERESTARTSYS; 1176 } 1177 } 1178 1179 /* Pull the first buffer from the used list */ 1180 ubuf = saa7164_enc_next_buf(port); 1181 1182 while ((count > 0) && ubuf) { 1183 1184 /* set remaining bytes to copy */ 1185 rem = ubuf->actual_size - ubuf->pos; 1186 cnt = rem > count ? count : rem; 1187 1188 p = ubuf->data + ubuf->pos; 1189 1190 dprintk(DBGLVL_ENC, 1191 "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n", 1192 __func__, (int)count, cnt, rem, ubuf, ubuf->pos); 1193 1194 if (copy_to_user(buffer, p, cnt)) { 1195 printk(KERN_ERR "%s() copy_to_user failed\n", __func__); 1196 if (!ret) { 1197 printk(KERN_ERR "%s() EFAULT\n", __func__); 1198 ret = -EFAULT; 1199 } 1200 goto err; 1201 } 1202 1203 ubuf->pos += cnt; 1204 count -= cnt; 1205 buffer += cnt; 1206 ret += cnt; 1207 1208 if (ubuf->pos > ubuf->actual_size) 1209 printk(KERN_ERR "read() pos > actual, huh?\n"); 1210 1211 if (ubuf->pos == ubuf->actual_size) { 1212 1213 /* finished with current buffer, take next buffer */ 1214 1215 /* Requeue the buffer on the free list */ 1216 ubuf->pos = 0; 1217 1218 mutex_lock(&port->dmaqueue_lock); 1219 list_move_tail(&ubuf->list, &port->list_buf_free.list); 1220 mutex_unlock(&port->dmaqueue_lock); 1221 1222 /* Dequeue next */ 1223 if ((file->f_flags & O_NONBLOCK) == 0) { 1224 if (wait_event_interruptible(port->wait_read, 1225 saa7164_enc_next_buf(port))) { 1226 break; 1227 } 1228 } 1229 ubuf = saa7164_enc_next_buf(port); 1230 } 1231 } 1232err: 1233 if (!ret && !ubuf) 1234 ret = -EAGAIN; 1235 1236 return ret; 1237} 1238 1239static unsigned int fops_poll(struct file *file, poll_table *wait) 1240{ 1241 struct saa7164_encoder_fh *fh = 1242 (struct saa7164_encoder_fh *)file->private_data; 1243 struct saa7164_port *port = fh->port; 1244 unsigned int mask = 0; 1245 1246 port->last_poll_msecs_diff = port->last_poll_msecs; 1247 port->last_poll_msecs = jiffies_to_msecs(jiffies); 1248 port->last_poll_msecs_diff = port->last_poll_msecs - 1249 port->last_poll_msecs_diff; 1250 1251 saa7164_histogram_update(&port->poll_interval, 1252 port->last_poll_msecs_diff); 1253 1254 if (!video_is_registered(port->v4l_device)) 1255 return -EIO; 1256 1257 if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { 1258 if (atomic_inc_return(&port->v4l_reader_count) == 1) { 1259 if (saa7164_encoder_initialize(port) < 0) 1260 return -EINVAL; 1261 saa7164_encoder_start_streaming(port); 1262 msleep(200); 1263 } 1264 } 1265 1266 /* blocking wait for buffer */ 1267 if ((file->f_flags & O_NONBLOCK) == 0) { 1268 if (wait_event_interruptible(port->wait_read, 1269 saa7164_enc_next_buf(port))) { 1270 return -ERESTARTSYS; 1271 } 1272 } 1273 1274 /* Pull the first buffer from the used list */ 1275 if (!list_empty(&port->list_buf_used.list)) 1276 mask |= POLLIN | POLLRDNORM; 1277 1278 return mask; 1279} 1280 1281static const struct v4l2_file_operations mpeg_fops = { 1282 .owner = THIS_MODULE, 1283 .open = fops_open, 1284 .release = fops_release, 1285 .read = fops_read, 1286 .poll = fops_poll, 1287 .unlocked_ioctl = video_ioctl2, 1288}; 1289 1290int saa7164_g_chip_ident(struct file *file, void *fh, 1291 struct v4l2_dbg_chip_ident *chip) 1292{ 1293 struct saa7164_port *port = ((struct saa7164_encoder_fh *)fh)->port; 1294 struct saa7164_dev *dev = port->dev; 1295 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1296 1297 return 0; 1298} 1299 1300int saa7164_g_register(struct file *file, void *fh, 1301 struct v4l2_dbg_register *reg) 1302{ 1303 struct saa7164_port *port = ((struct saa7164_encoder_fh *)fh)->port; 1304 struct saa7164_dev *dev = port->dev; 1305 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1306 1307 if (!capable(CAP_SYS_ADMIN)) 1308 return -EPERM; 1309 1310 return 0; 1311} 1312 1313int saa7164_s_register(struct file *file, void *fh, 1314 struct v4l2_dbg_register *reg) 1315{ 1316 struct saa7164_port *port = ((struct saa7164_encoder_fh *)fh)->port; 1317 struct saa7164_dev *dev = port->dev; 1318 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1319 1320 if (!capable(CAP_SYS_ADMIN)) 1321 return -EPERM; 1322 1323 return 0; 1324} 1325 1326static const struct v4l2_ioctl_ops mpeg_ioctl_ops = { 1327 .vidioc_s_std = vidioc_s_std, 1328 .vidioc_enum_input = vidioc_enum_input, 1329 .vidioc_g_input = vidioc_g_input, 1330 .vidioc_s_input = vidioc_s_input, 1331 .vidioc_g_tuner = vidioc_g_tuner, 1332 .vidioc_s_tuner = vidioc_s_tuner, 1333 .vidioc_g_frequency = vidioc_g_frequency, 1334 .vidioc_s_frequency = vidioc_s_frequency, 1335 .vidioc_s_ctrl = vidioc_s_ctrl, 1336 .vidioc_g_ctrl = vidioc_g_ctrl, 1337 .vidioc_querycap = vidioc_querycap, 1338 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1339 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1340 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1341 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1342 .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls, 1343 .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, 1344 .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, 1345 .vidioc_queryctrl = vidioc_queryctrl, 1346 .vidioc_g_chip_ident = saa7164_g_chip_ident, 1347#ifdef CONFIG_VIDEO_ADV_DEBUG 1348 .vidioc_g_register = saa7164_g_register, 1349 .vidioc_s_register = saa7164_s_register, 1350#endif 1351}; 1352 1353static struct video_device saa7164_mpeg_template = { 1354 .name = "saa7164", 1355 .fops = &mpeg_fops, 1356 .ioctl_ops = &mpeg_ioctl_ops, 1357 .minor = -1, 1358 .tvnorms = SAA7164_NORMS, 1359 .current_norm = V4L2_STD_NTSC_M, 1360}; 1361 1362static struct video_device *saa7164_encoder_alloc( 1363 struct saa7164_port *port, 1364 struct pci_dev *pci, 1365 struct video_device *template, 1366 char *type) 1367{ 1368 struct video_device *vfd; 1369 struct saa7164_dev *dev = port->dev; 1370 1371 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1372 1373 vfd = video_device_alloc(); 1374 if (NULL == vfd) 1375 return NULL; 1376 1377 *vfd = *template; 1378 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, 1379 type, saa7164_boards[dev->board].name); 1380 1381 vfd->parent = &pci->dev; 1382 vfd->release = video_device_release; 1383 return vfd; 1384} 1385 1386int saa7164_encoder_register(struct saa7164_port *port) 1387{ 1388 struct saa7164_dev *dev = port->dev; 1389 int result = -ENODEV; 1390 1391 dprintk(DBGLVL_ENC, "%s()\n", __func__); 1392 1393 if (port->type != SAA7164_MPEG_ENCODER) 1394 BUG(); 1395 1396 /* Sanity check that the PCI configuration space is active */ 1397 if (port->hwcfg.BARLocation == 0) { 1398 printk(KERN_ERR "%s() failed " 1399 "(errno = %d), NO PCI configuration\n", 1400 __func__, result); 1401 result = -ENOMEM; 1402 goto failed; 1403 } 1404 1405 /* Establish encoder defaults here */ 1406 /* Set default TV standard */ 1407 port->encodernorm = saa7164_tvnorms[0]; 1408 port->width = 720; 1409 port->mux_input = 1; /* Composite */ 1410 port->video_format = EU_VIDEO_FORMAT_MPEG_2; 1411 port->audio_format = 0; 1412 port->video_resolution = 0; 1413 port->ctl_brightness = 127; 1414 port->ctl_contrast = 66; 1415 port->ctl_hue = 128; 1416 port->ctl_saturation = 62; 1417 port->ctl_sharpness = 8; 1418 port->encoder_params.bitrate = ENCODER_DEF_BITRATE; 1419 port->encoder_params.bitrate_peak = ENCODER_DEF_BITRATE; 1420 port->encoder_params.bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR; 1421 port->encoder_params.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS; 1422 port->encoder_params.ctl_mute = 0; 1423 port->encoder_params.ctl_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3; 1424 port->encoder_params.refdist = 1; 1425 port->encoder_params.gop_size = SAA7164_ENCODER_DEFAULT_GOP_SIZE; 1426 1427 if (port->encodernorm.id & V4L2_STD_525_60) 1428 port->height = 480; 1429 else 1430 port->height = 576; 1431 1432 /* Allocate and register the video device node */ 1433 port->v4l_device = saa7164_encoder_alloc(port, 1434 dev->pci, &saa7164_mpeg_template, "mpeg"); 1435 1436 if (!port->v4l_device) { 1437 printk(KERN_INFO "%s: can't allocate mpeg device\n", 1438 dev->name); 1439 result = -ENOMEM; 1440 goto failed; 1441 } 1442 1443 video_set_drvdata(port->v4l_device, port); 1444 result = video_register_device(port->v4l_device, 1445 VFL_TYPE_GRABBER, -1); 1446 if (result < 0) { 1447 printk(KERN_INFO "%s: can't register mpeg device\n", 1448 dev->name); 1449 /* TODO: We're going to leak here if we don't dealloc 1450 The buffers above. The unreg function can't deal wit it. 1451 */ 1452 goto failed; 1453 } 1454 1455 printk(KERN_INFO "%s: registered device video%d [mpeg]\n", 1456 dev->name, port->v4l_device->num); 1457 1458 /* Configure the hardware defaults */ 1459 saa7164_api_set_videomux(port); 1460 saa7164_api_set_usercontrol(port, PU_BRIGHTNESS_CONTROL); 1461 saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); 1462 saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); 1463 saa7164_api_set_usercontrol(port, PU_SATURATION_CONTROL); 1464 saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); 1465 saa7164_api_audio_mute(port, 0); 1466 saa7164_api_set_audio_volume(port, 20); 1467 saa7164_api_set_aspect_ratio(port); 1468 1469 /* Disable audio standard detection, it's buggy */ 1470 saa7164_api_set_audio_detection(port, 0); 1471 1472 saa7164_api_set_encoder(port); 1473 saa7164_api_get_encoder(port); 1474 1475 result = 0; 1476failed: 1477 return result; 1478} 1479 1480void saa7164_encoder_unregister(struct saa7164_port *port) 1481{ 1482 struct saa7164_dev *dev = port->dev; 1483 1484 dprintk(DBGLVL_ENC, "%s(port=%d)\n", __func__, port->nr); 1485 1486 if (port->type != SAA7164_MPEG_ENCODER) 1487 BUG(); 1488 1489 if (port->v4l_device) { 1490 if (port->v4l_device->minor != -1) 1491 video_unregister_device(port->v4l_device); 1492 else 1493 video_device_release(port->v4l_device); 1494 1495 port->v4l_device = NULL; 1496 } 1497 1498 dprintk(DBGLVL_ENC, "%s(port=%d) done\n", __func__, port->nr); 1499} 1500 1501