cx23885-video.c revision 22b4e64f0a119e94090ef45285a5c311f1f6855f
1/* 2 * Driver for the Conexant CX23885 PCIe bridge 3 * 4 * Copyright (c) 2007 Steven Toth <stoth@hauppauge.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 <linux/init.h> 23#include <linux/list.h> 24#include <linux/module.h> 25#include <linux/moduleparam.h> 26#include <linux/kmod.h> 27#include <linux/kernel.h> 28#include <linux/slab.h> 29#include <linux/interrupt.h> 30#include <linux/delay.h> 31#include <linux/kthread.h> 32#include <asm/div64.h> 33 34#include "cx23885.h" 35#include <media/v4l2-common.h> 36 37#ifdef CONFIG_VIDEO_V4L1_COMPAT 38/* Include V4L1 specific functions. Should be removed soon */ 39#include <linux/videodev.h> 40#endif 41 42MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards"); 43MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>"); 44MODULE_LICENSE("GPL"); 45 46/* ------------------------------------------------------------------ */ 47 48static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 49static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 50static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 51 52module_param_array(video_nr, int, NULL, 0444); 53module_param_array(vbi_nr, int, NULL, 0444); 54module_param_array(radio_nr, int, NULL, 0444); 55 56MODULE_PARM_DESC(video_nr, "video device numbers"); 57MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 58MODULE_PARM_DESC(radio_nr, "radio device numbers"); 59 60static unsigned int video_debug; 61module_param(video_debug, int, 0644); 62MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 63 64static unsigned int irq_debug; 65module_param(irq_debug, int, 0644); 66MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); 67 68static unsigned int vid_limit = 16; 69module_param(vid_limit, int, 0644); 70MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); 71 72#define dprintk(level, fmt, arg...)\ 73 do { if (video_debug >= level)\ 74 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\ 75 } while (0) 76 77/* ------------------------------------------------------------------- */ 78/* static data */ 79 80#define FORMAT_FLAGS_PACKED 0x01 81 82static struct cx23885_fmt formats[] = { 83 { 84 .name = "8 bpp, gray", 85 .fourcc = V4L2_PIX_FMT_GREY, 86 .depth = 8, 87 .flags = FORMAT_FLAGS_PACKED, 88 }, { 89 .name = "15 bpp RGB, le", 90 .fourcc = V4L2_PIX_FMT_RGB555, 91 .depth = 16, 92 .flags = FORMAT_FLAGS_PACKED, 93 }, { 94 .name = "15 bpp RGB, be", 95 .fourcc = V4L2_PIX_FMT_RGB555X, 96 .depth = 16, 97 .flags = FORMAT_FLAGS_PACKED, 98 }, { 99 .name = "16 bpp RGB, le", 100 .fourcc = V4L2_PIX_FMT_RGB565, 101 .depth = 16, 102 .flags = FORMAT_FLAGS_PACKED, 103 }, { 104 .name = "16 bpp RGB, be", 105 .fourcc = V4L2_PIX_FMT_RGB565X, 106 .depth = 16, 107 .flags = FORMAT_FLAGS_PACKED, 108 }, { 109 .name = "24 bpp RGB, le", 110 .fourcc = V4L2_PIX_FMT_BGR24, 111 .depth = 24, 112 .flags = FORMAT_FLAGS_PACKED, 113 }, { 114 .name = "32 bpp RGB, le", 115 .fourcc = V4L2_PIX_FMT_BGR32, 116 .depth = 32, 117 .flags = FORMAT_FLAGS_PACKED, 118 }, { 119 .name = "32 bpp RGB, be", 120 .fourcc = V4L2_PIX_FMT_RGB32, 121 .depth = 32, 122 .flags = FORMAT_FLAGS_PACKED, 123 }, { 124 .name = "4:2:2, packed, YUYV", 125 .fourcc = V4L2_PIX_FMT_YUYV, 126 .depth = 16, 127 .flags = FORMAT_FLAGS_PACKED, 128 }, { 129 .name = "4:2:2, packed, UYVY", 130 .fourcc = V4L2_PIX_FMT_UYVY, 131 .depth = 16, 132 .flags = FORMAT_FLAGS_PACKED, 133 }, 134}; 135 136static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc) 137{ 138 unsigned int i; 139 140 for (i = 0; i < ARRAY_SIZE(formats); i++) 141 if (formats[i].fourcc == fourcc) 142 return formats+i; 143 144 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc); 145 return NULL; 146} 147 148/* ------------------------------------------------------------------- */ 149 150static const struct v4l2_queryctrl no_ctl = { 151 .name = "42", 152 .flags = V4L2_CTRL_FLAG_DISABLED, 153}; 154 155static struct cx23885_ctrl cx23885_ctls[] = { 156 /* --- video --- */ 157 { 158 .v = { 159 .id = V4L2_CID_BRIGHTNESS, 160 .name = "Brightness", 161 .minimum = 0x00, 162 .maximum = 0xff, 163 .step = 1, 164 .default_value = 0x7f, 165 .type = V4L2_CTRL_TYPE_INTEGER, 166 }, 167 .off = 128, 168 .reg = LUMA_CTRL, 169 .mask = 0x00ff, 170 .shift = 0, 171 }, { 172 .v = { 173 .id = V4L2_CID_CONTRAST, 174 .name = "Contrast", 175 .minimum = 0, 176 .maximum = 0xff, 177 .step = 1, 178 .default_value = 0x3f, 179 .type = V4L2_CTRL_TYPE_INTEGER, 180 }, 181 .off = 0, 182 .reg = LUMA_CTRL, 183 .mask = 0xff00, 184 .shift = 8, 185 }, { 186 .v = { 187 .id = V4L2_CID_HUE, 188 .name = "Hue", 189 .minimum = 0, 190 .maximum = 0xff, 191 .step = 1, 192 .default_value = 0x7f, 193 .type = V4L2_CTRL_TYPE_INTEGER, 194 }, 195 .off = 128, 196 .reg = CHROMA_CTRL, 197 .mask = 0xff0000, 198 .shift = 16, 199 }, { 200 /* strictly, this only describes only U saturation. 201 * V saturation is handled specially through code. 202 */ 203 .v = { 204 .id = V4L2_CID_SATURATION, 205 .name = "Saturation", 206 .minimum = 0, 207 .maximum = 0xff, 208 .step = 1, 209 .default_value = 0x7f, 210 .type = V4L2_CTRL_TYPE_INTEGER, 211 }, 212 .off = 0, 213 .reg = CHROMA_CTRL, 214 .mask = 0x00ff, 215 .shift = 0, 216 }, { 217 /* --- audio --- */ 218 .v = { 219 .id = V4L2_CID_AUDIO_MUTE, 220 .name = "Mute", 221 .minimum = 0, 222 .maximum = 1, 223 .default_value = 1, 224 .type = V4L2_CTRL_TYPE_BOOLEAN, 225 }, 226 .reg = PATH1_CTL1, 227 .mask = (0x1f << 24), 228 .shift = 24, 229 }, { 230 .v = { 231 .id = V4L2_CID_AUDIO_VOLUME, 232 .name = "Volume", 233 .minimum = 0, 234 .maximum = 0x3f, 235 .step = 1, 236 .default_value = 0x3f, 237 .type = V4L2_CTRL_TYPE_INTEGER, 238 }, 239 .reg = PATH1_VOL_CTL, 240 .mask = 0xff, 241 .shift = 0, 242 } 243}; 244static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls); 245 246const u32 cx23885_user_ctrls[] = { 247 V4L2_CID_USER_CLASS, 248 V4L2_CID_BRIGHTNESS, 249 V4L2_CID_CONTRAST, 250 V4L2_CID_SATURATION, 251 V4L2_CID_HUE, 252 V4L2_CID_AUDIO_VOLUME, 253 V4L2_CID_AUDIO_MUTE, 254 0 255}; 256EXPORT_SYMBOL(cx23885_user_ctrls); 257 258static const u32 *ctrl_classes[] = { 259 cx23885_user_ctrls, 260 NULL 261}; 262 263void cx23885_video_wakeup(struct cx23885_dev *dev, 264 struct cx23885_dmaqueue *q, u32 count) 265{ 266 struct cx23885_buffer *buf; 267 int bc; 268 269 for (bc = 0;; bc++) { 270 if (list_empty(&q->active)) 271 break; 272 buf = list_entry(q->active.next, 273 struct cx23885_buffer, vb.queue); 274 275 /* count comes from the hw and is is 16bit wide -- 276 * this trick handles wrap-arounds correctly for 277 * up to 32767 buffers in flight... */ 278 if ((s16) (count - buf->count) < 0) 279 break; 280 281 do_gettimeofday(&buf->vb.ts); 282 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, 283 count, buf->count); 284 buf->vb.state = VIDEOBUF_DONE; 285 list_del(&buf->vb.queue); 286 wake_up(&buf->vb.done); 287 } 288 if (list_empty(&q->active)) { 289 del_timer(&q->timeout); 290 } else { 291 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 292 } 293 if (bc != 1) 294 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", 295 __func__, bc); 296} 297 298int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm) 299{ 300 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", 301 __func__, 302 (unsigned int)norm, 303 v4l2_norm_to_name(norm)); 304 305 dev->tvnorm = norm; 306 307 /* Tell the analog tuner/demods */ 308 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm); 309 310 /* Tell the internal A/V decoder */ 311 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm); 312 313 return 0; 314} 315 316struct video_device *cx23885_vdev_init(struct cx23885_dev *dev, 317 struct pci_dev *pci, 318 struct video_device *template, 319 char *type) 320{ 321 struct video_device *vfd; 322 dprintk(1, "%s()\n", __func__); 323 324 vfd = video_device_alloc(); 325 if (NULL == vfd) 326 return NULL; 327 *vfd = *template; 328 vfd->minor = -1; 329 vfd->dev = &pci->dev; 330 vfd->release = video_device_release; 331 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", 332 dev->name, type, cx23885_boards[dev->board].name); 333 return vfd; 334} 335 336int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl) 337{ 338 int i; 339 340 if (qctrl->id < V4L2_CID_BASE || 341 qctrl->id >= V4L2_CID_LASTP1) 342 return -EINVAL; 343 for (i = 0; i < CX23885_CTLS; i++) 344 if (cx23885_ctls[i].v.id == qctrl->id) 345 break; 346 if (i == CX23885_CTLS) { 347 *qctrl = no_ctl; 348 return 0; 349 } 350 *qctrl = cx23885_ctls[i].v; 351 return 0; 352} 353EXPORT_SYMBOL(cx23885_ctrl_query); 354 355/* ------------------------------------------------------------------- */ 356/* resource management */ 357 358static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh, 359 unsigned int bit) 360{ 361 dprintk(1, "%s()\n", __func__); 362 if (fh->resources & bit) 363 /* have it already allocated */ 364 return 1; 365 366 /* is it free? */ 367 mutex_lock(&dev->lock); 368 if (dev->resources & bit) { 369 /* no, someone else uses it */ 370 mutex_unlock(&dev->lock); 371 return 0; 372 } 373 /* it's free, grab it */ 374 fh->resources |= bit; 375 dev->resources |= bit; 376 dprintk(1, "res: get %d\n", bit); 377 mutex_unlock(&dev->lock); 378 return 1; 379} 380 381static int res_check(struct cx23885_fh *fh, unsigned int bit) 382{ 383 return (fh->resources & bit); 384} 385 386static int res_locked(struct cx23885_dev *dev, unsigned int bit) 387{ 388 return (dev->resources & bit); 389} 390 391static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh, 392 unsigned int bits) 393{ 394 BUG_ON((fh->resources & bits) != bits); 395 dprintk(1, "%s()\n", __func__); 396 397 mutex_lock(&dev->lock); 398 fh->resources &= ~bits; 399 dev->resources &= ~bits; 400 dprintk(1, "res: put %d\n", bits); 401 mutex_unlock(&dev->lock); 402} 403 404int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) 405{ 406 struct v4l2_routing route; 407 memset(&route, 0, sizeof(route)); 408 409 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", 410 __func__, 411 input, INPUT(input)->vmux, 412 INPUT(input)->gpio0, INPUT(input)->gpio1, 413 INPUT(input)->gpio2, INPUT(input)->gpio3); 414 dev->input = input; 415 416 route.input = INPUT(input)->vmux; 417 418 /* Tell the internal A/V decoder */ 419 cx23885_call_i2c_clients(&dev->i2c_bus[2], 420 VIDIOC_INT_S_VIDEO_ROUTING, &route); 421 422 return 0; 423} 424EXPORT_SYMBOL(cx23885_video_mux); 425 426/* ------------------------------------------------------------------ */ 427int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width, 428 unsigned int height, enum v4l2_field field) 429{ 430 dprintk(1, "%s()\n", __func__); 431 return 0; 432} 433 434static int cx23885_start_video_dma(struct cx23885_dev *dev, 435 struct cx23885_dmaqueue *q, 436 struct cx23885_buffer *buf) 437{ 438 dprintk(1, "%s()\n", __func__); 439 440 /* setup fifo + format */ 441 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], 442 buf->bpl, buf->risc.dma); 443 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field); 444 445 /* reset counter */ 446 cx_write(VID_A_GPCNT_CTL, 3); 447 q->count = 1; 448 449 /* enable irq */ 450 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01); 451 cx_set(VID_A_INT_MSK, 0x000011); 452 453 /* start dma */ 454 cx_set(DEV_CNTRL2, (1<<5)); 455 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */ 456 457 return 0; 458} 459 460 461static int cx23885_restart_video_queue(struct cx23885_dev *dev, 462 struct cx23885_dmaqueue *q) 463{ 464 struct cx23885_buffer *buf, *prev; 465 struct list_head *item; 466 dprintk(1, "%s()\n", __func__); 467 468 if (!list_empty(&q->active)) { 469 buf = list_entry(q->active.next, struct cx23885_buffer, 470 vb.queue); 471 dprintk(2, "restart_queue [%p/%d]: restart dma\n", 472 buf, buf->vb.i); 473 cx23885_start_video_dma(dev, q, buf); 474 list_for_each(item, &q->active) { 475 buf = list_entry(item, struct cx23885_buffer, 476 vb.queue); 477 buf->count = q->count++; 478 } 479 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 480 return 0; 481 } 482 483 prev = NULL; 484 for (;;) { 485 if (list_empty(&q->queued)) 486 return 0; 487 buf = list_entry(q->queued.next, struct cx23885_buffer, 488 vb.queue); 489 if (NULL == prev) { 490 list_move_tail(&buf->vb.queue, &q->active); 491 cx23885_start_video_dma(dev, q, buf); 492 buf->vb.state = VIDEOBUF_ACTIVE; 493 buf->count = q->count++; 494 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 495 dprintk(2, "[%p/%d] restart_queue - first active\n", 496 buf, buf->vb.i); 497 498 } else if (prev->vb.width == buf->vb.width && 499 prev->vb.height == buf->vb.height && 500 prev->fmt == buf->fmt) { 501 list_move_tail(&buf->vb.queue, &q->active); 502 buf->vb.state = VIDEOBUF_ACTIVE; 503 buf->count = q->count++; 504 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 505 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ 506 dprintk(2, "[%p/%d] restart_queue - move to active\n", 507 buf, buf->vb.i); 508 } else { 509 return 0; 510 } 511 prev = buf; 512 } 513} 514 515static int buffer_setup(struct videobuf_queue *q, unsigned int *count, 516 unsigned int *size) 517{ 518 struct cx23885_fh *fh = q->priv_data; 519 520 *size = fh->fmt->depth*fh->width*fh->height >> 3; 521 if (0 == *count) 522 *count = 32; 523 while (*size * *count > vid_limit * 1024 * 1024) 524 (*count)--; 525 return 0; 526} 527 528static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 529 enum v4l2_field field) 530{ 531 struct cx23885_fh *fh = q->priv_data; 532 struct cx23885_dev *dev = fh->dev; 533 struct cx23885_buffer *buf = 534 container_of(vb, struct cx23885_buffer, vb); 535 int rc, init_buffer = 0; 536 u32 line0_offset, line1_offset; 537 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); 538 539 BUG_ON(NULL == fh->fmt); 540 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) || 541 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm)) 542 return -EINVAL; 543 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; 544 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 545 return -EINVAL; 546 547 if (buf->fmt != fh->fmt || 548 buf->vb.width != fh->width || 549 buf->vb.height != fh->height || 550 buf->vb.field != field) { 551 buf->fmt = fh->fmt; 552 buf->vb.width = fh->width; 553 buf->vb.height = fh->height; 554 buf->vb.field = field; 555 init_buffer = 1; 556 } 557 558 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 559 init_buffer = 1; 560 rc = videobuf_iolock(q, &buf->vb, NULL); 561 if (0 != rc) 562 goto fail; 563 } 564 565 if (init_buffer) { 566 buf->bpl = buf->vb.width * buf->fmt->depth >> 3; 567 switch (buf->vb.field) { 568 case V4L2_FIELD_TOP: 569 cx23885_risc_buffer(dev->pci, &buf->risc, 570 dma->sglist, 0, UNSET, 571 buf->bpl, 0, buf->vb.height); 572 break; 573 case V4L2_FIELD_BOTTOM: 574 cx23885_risc_buffer(dev->pci, &buf->risc, 575 dma->sglist, UNSET, 0, 576 buf->bpl, 0, buf->vb.height); 577 break; 578 case V4L2_FIELD_INTERLACED: 579 if (dev->tvnorm & V4L2_STD_NTSC) { 580 /* cx25840 transmits NTSC bottom field first */ 581 dprintk(1, "%s() Creating NTSC risc\n", 582 __func__); 583 line0_offset = buf->bpl; 584 line1_offset = 0; 585 } else { 586 /* All other formats are top field first */ 587 dprintk(1, "%s() Creating PAL/SECAM risc\n", 588 __func__); 589 line0_offset = 0; 590 line1_offset = buf->bpl; 591 } 592 cx23885_risc_buffer(dev->pci, &buf->risc, 593 dma->sglist, line0_offset, 594 line1_offset, 595 buf->bpl, buf->bpl, 596 buf->vb.height >> 1); 597 break; 598 case V4L2_FIELD_SEQ_TB: 599 cx23885_risc_buffer(dev->pci, &buf->risc, 600 dma->sglist, 601 0, buf->bpl * (buf->vb.height >> 1), 602 buf->bpl, 0, 603 buf->vb.height >> 1); 604 break; 605 case V4L2_FIELD_SEQ_BT: 606 cx23885_risc_buffer(dev->pci, &buf->risc, 607 dma->sglist, 608 buf->bpl * (buf->vb.height >> 1), 0, 609 buf->bpl, 0, 610 buf->vb.height >> 1); 611 break; 612 default: 613 BUG(); 614 } 615 } 616 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", 617 buf, buf->vb.i, 618 fh->width, fh->height, fh->fmt->depth, fh->fmt->name, 619 (unsigned long)buf->risc.dma); 620 621 buf->vb.state = VIDEOBUF_PREPARED; 622 return 0; 623 624 fail: 625 cx23885_free_buffer(q, buf); 626 return rc; 627} 628 629static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 630{ 631 struct cx23885_buffer *buf = container_of(vb, 632 struct cx23885_buffer, vb); 633 struct cx23885_buffer *prev; 634 struct cx23885_fh *fh = vq->priv_data; 635 struct cx23885_dev *dev = fh->dev; 636 struct cx23885_dmaqueue *q = &dev->vidq; 637 638 /* add jump to stopper */ 639 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); 640 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); 641 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ 642 643 if (!list_empty(&q->queued)) { 644 list_add_tail(&buf->vb.queue, &q->queued); 645 buf->vb.state = VIDEOBUF_QUEUED; 646 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", 647 buf, buf->vb.i); 648 649 } else if (list_empty(&q->active)) { 650 list_add_tail(&buf->vb.queue, &q->active); 651 cx23885_start_video_dma(dev, q, buf); 652 buf->vb.state = VIDEOBUF_ACTIVE; 653 buf->count = q->count++; 654 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 655 dprintk(2, "[%p/%d] buffer_queue - first active\n", 656 buf, buf->vb.i); 657 658 } else { 659 prev = list_entry(q->active.prev, struct cx23885_buffer, 660 vb.queue); 661 if (prev->vb.width == buf->vb.width && 662 prev->vb.height == buf->vb.height && 663 prev->fmt == buf->fmt) { 664 list_add_tail(&buf->vb.queue, &q->active); 665 buf->vb.state = VIDEOBUF_ACTIVE; 666 buf->count = q->count++; 667 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 668 /* 64 bit bits 63-32 */ 669 prev->risc.jmp[2] = cpu_to_le32(0); 670 dprintk(2, "[%p/%d] buffer_queue - append to active\n", 671 buf, buf->vb.i); 672 673 } else { 674 list_add_tail(&buf->vb.queue, &q->queued); 675 buf->vb.state = VIDEOBUF_QUEUED; 676 dprintk(2, "[%p/%d] buffer_queue - first queued\n", 677 buf, buf->vb.i); 678 } 679 } 680} 681 682static void buffer_release(struct videobuf_queue *q, 683 struct videobuf_buffer *vb) 684{ 685 struct cx23885_buffer *buf = container_of(vb, 686 struct cx23885_buffer, vb); 687 688 cx23885_free_buffer(q, buf); 689} 690 691static struct videobuf_queue_ops cx23885_video_qops = { 692 .buf_setup = buffer_setup, 693 .buf_prepare = buffer_prepare, 694 .buf_queue = buffer_queue, 695 .buf_release = buffer_release, 696}; 697 698static struct videobuf_queue *get_queue(struct cx23885_fh *fh) 699{ 700 switch (fh->type) { 701 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 702 return &fh->vidq; 703 case V4L2_BUF_TYPE_VBI_CAPTURE: 704 return &fh->vbiq; 705 default: 706 BUG(); 707 return NULL; 708 } 709} 710 711static int get_resource(struct cx23885_fh *fh) 712{ 713 switch (fh->type) { 714 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 715 return RESOURCE_VIDEO; 716 case V4L2_BUF_TYPE_VBI_CAPTURE: 717 return RESOURCE_VBI; 718 default: 719 BUG(); 720 return 0; 721 } 722} 723 724static int video_open(struct inode *inode, struct file *file) 725{ 726 int minor = iminor(inode); 727 struct cx23885_dev *h, *dev = NULL; 728 struct cx23885_fh *fh; 729 struct list_head *list; 730 enum v4l2_buf_type type = 0; 731 int radio = 0; 732 733 list_for_each(list, &cx23885_devlist) { 734 h = list_entry(list, struct cx23885_dev, devlist); 735 if (h->video_dev->minor == minor) { 736 dev = h; 737 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 738 } 739 if (h->vbi_dev && 740 h->vbi_dev->minor == minor) { 741 dev = h; 742 type = V4L2_BUF_TYPE_VBI_CAPTURE; 743 } 744 if (h->radio_dev && 745 h->radio_dev->minor == minor) { 746 radio = 1; 747 dev = h; 748 } 749 } 750 if (NULL == dev) 751 return -ENODEV; 752 753 dprintk(1, "open minor=%d radio=%d type=%s\n", 754 minor, radio, v4l2_type_names[type]); 755 756 /* allocate + initialize per filehandle data */ 757 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 758 if (NULL == fh) 759 return -ENOMEM; 760 file->private_data = fh; 761 fh->dev = dev; 762 fh->radio = radio; 763 fh->type = type; 764 fh->width = 320; 765 fh->height = 240; 766 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 767 768 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops, 769 &dev->pci->dev, &dev->slock, 770 V4L2_BUF_TYPE_VIDEO_CAPTURE, 771 V4L2_FIELD_INTERLACED, 772 sizeof(struct cx23885_buffer), 773 fh); 774 775 dprintk(1, "post videobuf_queue_init()\n"); 776 777 778 return 0; 779} 780 781static ssize_t video_read(struct file *file, char __user *data, 782 size_t count, loff_t *ppos) 783{ 784 struct cx23885_fh *fh = file->private_data; 785 786 switch (fh->type) { 787 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 788 if (res_locked(fh->dev, RESOURCE_VIDEO)) 789 return -EBUSY; 790 return videobuf_read_one(&fh->vidq, data, count, ppos, 791 file->f_flags & O_NONBLOCK); 792 case V4L2_BUF_TYPE_VBI_CAPTURE: 793 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 794 return -EBUSY; 795 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1, 796 file->f_flags & O_NONBLOCK); 797 default: 798 BUG(); 799 return 0; 800 } 801} 802 803static unsigned int video_poll(struct file *file, 804 struct poll_table_struct *wait) 805{ 806 struct cx23885_fh *fh = file->private_data; 807 struct cx23885_buffer *buf; 808 809 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 810 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 811 return POLLERR; 812 return videobuf_poll_stream(file, &fh->vbiq, wait); 813 } 814 815 if (res_check(fh, RESOURCE_VIDEO)) { 816 /* streaming capture */ 817 if (list_empty(&fh->vidq.stream)) 818 return POLLERR; 819 buf = list_entry(fh->vidq.stream.next, 820 struct cx23885_buffer, vb.stream); 821 } else { 822 /* read() capture */ 823 buf = (struct cx23885_buffer *)fh->vidq.read_buf; 824 if (NULL == buf) 825 return POLLERR; 826 } 827 poll_wait(file, &buf->vb.done, wait); 828 if (buf->vb.state == VIDEOBUF_DONE || 829 buf->vb.state == VIDEOBUF_ERROR) 830 return POLLIN|POLLRDNORM; 831 return 0; 832} 833 834static int video_release(struct inode *inode, struct file *file) 835{ 836 struct cx23885_fh *fh = file->private_data; 837 struct cx23885_dev *dev = fh->dev; 838 839 /* turn off overlay */ 840 if (res_check(fh, RESOURCE_OVERLAY)) { 841 /* FIXME */ 842 res_free(dev, fh, RESOURCE_OVERLAY); 843 } 844 845 /* stop video capture */ 846 if (res_check(fh, RESOURCE_VIDEO)) { 847 videobuf_queue_cancel(&fh->vidq); 848 res_free(dev, fh, RESOURCE_VIDEO); 849 } 850 if (fh->vidq.read_buf) { 851 buffer_release(&fh->vidq, fh->vidq.read_buf); 852 kfree(fh->vidq.read_buf); 853 } 854 855 /* stop vbi capture */ 856 if (res_check(fh, RESOURCE_VBI)) { 857 if (fh->vbiq.streaming) 858 videobuf_streamoff(&fh->vbiq); 859 if (fh->vbiq.reading) 860 videobuf_read_stop(&fh->vbiq); 861 res_free(dev, fh, RESOURCE_VBI); 862 } 863 864 videobuf_mmap_free(&fh->vidq); 865 file->private_data = NULL; 866 kfree(fh); 867 868 /* We are not putting the tuner to sleep here on exit, because 869 * we want to use the mpeg encoder in another session to capture 870 * tuner video. Closing this will result in no video to the encoder. 871 */ 872 873 return 0; 874} 875 876static int video_mmap(struct file *file, struct vm_area_struct *vma) 877{ 878 struct cx23885_fh *fh = file->private_data; 879 880 return videobuf_mmap_mapper(get_queue(fh), vma); 881} 882 883/* ------------------------------------------------------------------ */ 884/* VIDEO CTRL IOCTLS */ 885 886int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl) 887{ 888 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__); 889 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl); 890 return 0; 891} 892EXPORT_SYMBOL(cx23885_get_control); 893 894int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl) 895{ 896 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)" 897 " (disabled - no action)\n", __func__); 898 return 0; 899} 900EXPORT_SYMBOL(cx23885_set_control); 901 902static void init_controls(struct cx23885_dev *dev) 903{ 904 struct v4l2_control ctrl; 905 int i; 906 907 for (i = 0; i < CX23885_CTLS; i++) { 908 ctrl.id = cx23885_ctls[i].v.id; 909 ctrl.value = cx23885_ctls[i].v.default_value; 910 911 cx23885_set_control(dev, &ctrl); 912 } 913} 914 915/* ------------------------------------------------------------------ */ 916/* VIDEO IOCTLS */ 917 918static int vidioc_g_fmt_cap(struct file *file, void *priv, 919 struct v4l2_format *f) 920{ 921 struct cx23885_fh *fh = priv; 922 923 f->fmt.pix.width = fh->width; 924 f->fmt.pix.height = fh->height; 925 f->fmt.pix.field = fh->vidq.field; 926 f->fmt.pix.pixelformat = fh->fmt->fourcc; 927 f->fmt.pix.bytesperline = 928 (f->fmt.pix.width * fh->fmt->depth) >> 3; 929 f->fmt.pix.sizeimage = 930 f->fmt.pix.height * f->fmt.pix.bytesperline; 931 932 return 0; 933} 934 935static int vidioc_try_fmt_cap(struct file *file, void *priv, 936 struct v4l2_format *f) 937{ 938 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 939 struct cx23885_fmt *fmt; 940 enum v4l2_field field; 941 unsigned int maxw, maxh; 942 943 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 944 if (NULL == fmt) 945 return -EINVAL; 946 947 field = f->fmt.pix.field; 948 maxw = norm_maxw(dev->tvnorm); 949 maxh = norm_maxh(dev->tvnorm); 950 951 if (V4L2_FIELD_ANY == field) { 952 field = (f->fmt.pix.height > maxh/2) 953 ? V4L2_FIELD_INTERLACED 954 : V4L2_FIELD_BOTTOM; 955 } 956 957 switch (field) { 958 case V4L2_FIELD_TOP: 959 case V4L2_FIELD_BOTTOM: 960 maxh = maxh / 2; 961 break; 962 case V4L2_FIELD_INTERLACED: 963 break; 964 default: 965 return -EINVAL; 966 } 967 968 f->fmt.pix.field = field; 969 if (f->fmt.pix.height < 32) 970 f->fmt.pix.height = 32; 971 if (f->fmt.pix.height > maxh) 972 f->fmt.pix.height = maxh; 973 if (f->fmt.pix.width < 48) 974 f->fmt.pix.width = 48; 975 if (f->fmt.pix.width > maxw) 976 f->fmt.pix.width = maxw; 977 f->fmt.pix.width &= ~0x03; 978 f->fmt.pix.bytesperline = 979 (f->fmt.pix.width * fmt->depth) >> 3; 980 f->fmt.pix.sizeimage = 981 f->fmt.pix.height * f->fmt.pix.bytesperline; 982 983 return 0; 984} 985 986static int vidioc_s_fmt_cap(struct file *file, void *priv, 987 struct v4l2_format *f) 988{ 989 struct cx23885_fh *fh = priv; 990 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 991 int err; 992 993 dprintk(2, "%s()\n", __func__); 994 err = vidioc_try_fmt_cap(file, priv, f); 995 996 if (0 != err) 997 return err; 998 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); 999 fh->width = f->fmt.pix.width; 1000 fh->height = f->fmt.pix.height; 1001 fh->vidq.field = f->fmt.pix.field; 1002 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, 1003 fh->width, fh->height, fh->vidq.field); 1004 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f); 1005 return 0; 1006} 1007 1008static int vidioc_querycap(struct file *file, void *priv, 1009 struct v4l2_capability *cap) 1010{ 1011 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1012 1013 strcpy(cap->driver, "cx23885"); 1014 strlcpy(cap->card, cx23885_boards[dev->board].name, 1015 sizeof(cap->card)); 1016 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); 1017 cap->version = CX23885_VERSION_CODE; 1018 cap->capabilities = 1019 V4L2_CAP_VIDEO_CAPTURE | 1020 V4L2_CAP_READWRITE | 1021 V4L2_CAP_STREAMING | 1022 V4L2_CAP_VBI_CAPTURE; 1023 if (UNSET != dev->tuner_type) 1024 cap->capabilities |= V4L2_CAP_TUNER; 1025 return 0; 1026} 1027 1028static int vidioc_enum_fmt_cap(struct file *file, void *priv, 1029 struct v4l2_fmtdesc *f) 1030{ 1031 if (unlikely(f->index >= ARRAY_SIZE(formats))) 1032 return -EINVAL; 1033 1034 strlcpy(f->description, formats[f->index].name, 1035 sizeof(f->description)); 1036 f->pixelformat = formats[f->index].fourcc; 1037 1038 return 0; 1039} 1040 1041#ifdef CONFIG_VIDEO_V4L1_COMPAT 1042static int vidiocgmbuf(struct file *file, void *priv, 1043 struct video_mbuf *mbuf) 1044{ 1045 struct cx23885_fh *fh = priv; 1046 struct videobuf_queue *q; 1047 struct v4l2_requestbuffers req; 1048 unsigned int i; 1049 int err; 1050 1051 q = get_queue(fh); 1052 memset(&req, 0, sizeof(req)); 1053 req.type = q->type; 1054 req.count = 8; 1055 req.memory = V4L2_MEMORY_MMAP; 1056 err = videobuf_reqbufs(q, &req); 1057 if (err < 0) 1058 return err; 1059 1060 mbuf->frames = req.count; 1061 mbuf->size = 0; 1062 for (i = 0; i < mbuf->frames; i++) { 1063 mbuf->offsets[i] = q->bufs[i]->boff; 1064 mbuf->size += q->bufs[i]->bsize; 1065 } 1066 return 0; 1067} 1068#endif 1069 1070static int vidioc_reqbufs(struct file *file, void *priv, 1071 struct v4l2_requestbuffers *p) 1072{ 1073 struct cx23885_fh *fh = priv; 1074 return (videobuf_reqbufs(get_queue(fh), p)); 1075} 1076 1077static int vidioc_querybuf(struct file *file, void *priv, 1078 struct v4l2_buffer *p) 1079{ 1080 struct cx23885_fh *fh = priv; 1081 return (videobuf_querybuf(get_queue(fh), p)); 1082} 1083 1084static int vidioc_qbuf(struct file *file, void *priv, 1085 struct v4l2_buffer *p) 1086{ 1087 struct cx23885_fh *fh = priv; 1088 return (videobuf_qbuf(get_queue(fh), p)); 1089} 1090 1091static int vidioc_dqbuf(struct file *file, void *priv, 1092 struct v4l2_buffer *p) 1093{ 1094 struct cx23885_fh *fh = priv; 1095 return (videobuf_dqbuf(get_queue(fh), p, 1096 file->f_flags & O_NONBLOCK)); 1097} 1098 1099static int vidioc_streamon(struct file *file, void *priv, 1100 enum v4l2_buf_type i) 1101{ 1102 struct cx23885_fh *fh = priv; 1103 struct cx23885_dev *dev = fh->dev; 1104 dprintk(1, "%s()\n", __func__); 1105 1106 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) 1107 return -EINVAL; 1108 if (unlikely(i != fh->type)) 1109 return -EINVAL; 1110 1111 if (unlikely(!res_get(dev, fh, get_resource(fh)))) 1112 return -EBUSY; 1113 return videobuf_streamon(get_queue(fh)); 1114} 1115 1116static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) 1117{ 1118 struct cx23885_fh *fh = priv; 1119 struct cx23885_dev *dev = fh->dev; 1120 int err, res; 1121 dprintk(1, "%s()\n", __func__); 1122 1123 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1124 return -EINVAL; 1125 if (i != fh->type) 1126 return -EINVAL; 1127 1128 res = get_resource(fh); 1129 err = videobuf_streamoff(get_queue(fh)); 1130 if (err < 0) 1131 return err; 1132 res_free(dev, fh, res); 1133 return 0; 1134} 1135 1136static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms) 1137{ 1138 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1139 dprintk(1, "%s()\n", __func__); 1140 1141 mutex_lock(&dev->lock); 1142 cx23885_set_tvnorm(dev, *tvnorms); 1143 mutex_unlock(&dev->lock); 1144 1145 return 0; 1146} 1147 1148int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i) 1149{ 1150 static const char *iname[] = { 1151 [CX23885_VMUX_COMPOSITE1] = "Composite1", 1152 [CX23885_VMUX_COMPOSITE2] = "Composite2", 1153 [CX23885_VMUX_COMPOSITE3] = "Composite3", 1154 [CX23885_VMUX_COMPOSITE4] = "Composite4", 1155 [CX23885_VMUX_SVIDEO] = "S-Video", 1156 [CX23885_VMUX_TELEVISION] = "Television", 1157 [CX23885_VMUX_CABLE] = "Cable TV", 1158 [CX23885_VMUX_DVB] = "DVB", 1159 [CX23885_VMUX_DEBUG] = "for debug only", 1160 }; 1161 unsigned int n; 1162 dprintk(1, "%s()\n", __func__); 1163 1164 n = i->index; 1165 if (n >= 4) 1166 return -EINVAL; 1167 1168 if (0 == INPUT(n)->type) 1169 return -EINVAL; 1170 1171 memset(i, 0, sizeof(*i)); 1172 i->index = n; 1173 i->type = V4L2_INPUT_TYPE_CAMERA; 1174 strcpy(i->name, iname[INPUT(n)->type]); 1175 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) || 1176 (CX23885_VMUX_CABLE == INPUT(n)->type)) 1177 i->type = V4L2_INPUT_TYPE_TUNER; 1178 i->std = CX23885_NORMS; 1179 return 0; 1180} 1181EXPORT_SYMBOL(cx23885_enum_input); 1182 1183static int vidioc_enum_input(struct file *file, void *priv, 1184 struct v4l2_input *i) 1185{ 1186 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1187 dprintk(1, "%s()\n", __func__); 1188 return cx23885_enum_input(dev, i); 1189} 1190 1191static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1192{ 1193 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1194 1195 *i = dev->input; 1196 dprintk(1, "%s() returns %d\n", __func__, *i); 1197 return 0; 1198} 1199 1200static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 1201{ 1202 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1203 1204 dprintk(1, "%s(%d)\n", __func__, i); 1205 1206 if (i >= 4) { 1207 dprintk(1, "%s() -EINVAL\n", __func__); 1208 return -EINVAL; 1209 } 1210 1211 mutex_lock(&dev->lock); 1212 cx23885_video_mux(dev, i); 1213 mutex_unlock(&dev->lock); 1214 return 0; 1215} 1216 1217static int vidioc_queryctrl(struct file *file, void *priv, 1218 struct v4l2_queryctrl *qctrl) 1219{ 1220 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); 1221 if (unlikely(qctrl->id == 0)) 1222 return -EINVAL; 1223 return cx23885_ctrl_query(qctrl); 1224} 1225 1226static int vidioc_g_ctrl(struct file *file, void *priv, 1227 struct v4l2_control *ctl) 1228{ 1229 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1230 1231 return cx23885_get_control(dev, ctl); 1232} 1233 1234static int vidioc_s_ctrl(struct file *file, void *priv, 1235 struct v4l2_control *ctl) 1236{ 1237 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1238 1239 return cx23885_set_control(dev, ctl); 1240} 1241 1242static int vidioc_g_tuner(struct file *file, void *priv, 1243 struct v4l2_tuner *t) 1244{ 1245 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1246 1247 if (unlikely(UNSET == dev->tuner_type)) 1248 return -EINVAL; 1249 if (0 != t->index) 1250 return -EINVAL; 1251 1252 strcpy(t->name, "Television"); 1253 t->type = V4L2_TUNER_ANALOG_TV; 1254 t->capability = V4L2_TUNER_CAP_NORM; 1255 t->rangehigh = 0xffffffffUL; 1256 t->signal = 0xffff ; /* LOCKED */ 1257 return 0; 1258} 1259 1260static int vidioc_s_tuner(struct file *file, void *priv, 1261 struct v4l2_tuner *t) 1262{ 1263 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1264 1265 if (UNSET == dev->tuner_type) 1266 return -EINVAL; 1267 if (0 != t->index) 1268 return -EINVAL; 1269 return 0; 1270} 1271 1272static int vidioc_g_frequency(struct file *file, void *priv, 1273 struct v4l2_frequency *f) 1274{ 1275 struct cx23885_fh *fh = priv; 1276 struct cx23885_dev *dev = fh->dev; 1277 1278 if (unlikely(UNSET == dev->tuner_type)) 1279 return -EINVAL; 1280 1281 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */ 1282 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 1283 f->frequency = dev->freq; 1284 1285 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f); 1286 1287 return 0; 1288} 1289 1290int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f) 1291{ 1292 if (unlikely(UNSET == dev->tuner_type)) 1293 return -EINVAL; 1294 if (unlikely(f->tuner != 0)) 1295 return -EINVAL; 1296 1297 mutex_lock(&dev->lock); 1298 dev->freq = f->frequency; 1299 1300 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f); 1301 1302 /* When changing channels it is required to reset TVAUDIO */ 1303 msleep(10); 1304 1305 mutex_unlock(&dev->lock); 1306 1307 return 0; 1308} 1309EXPORT_SYMBOL(cx23885_set_freq); 1310 1311static int vidioc_s_frequency(struct file *file, void *priv, 1312 struct v4l2_frequency *f) 1313{ 1314 struct cx23885_fh *fh = priv; 1315 struct cx23885_dev *dev = fh->dev; 1316 1317 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) 1318 return -EINVAL; 1319 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) 1320 return -EINVAL; 1321 1322 return 1323 cx23885_set_freq(dev, f); 1324} 1325 1326#ifdef CONFIG_VIDEO_ADV_DEBUG 1327static int vidioc_g_register(struct file *file, void *fh, 1328 struct v4l2_register *reg) 1329{ 1330 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1331 1332 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 1333 return -EINVAL; 1334 1335 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg); 1336 1337 return 0; 1338} 1339 1340static int vidioc_s_register(struct file *file, void *fh, 1341 struct v4l2_register *reg) 1342{ 1343 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1344 1345 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 1346 return -EINVAL; 1347 1348 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg); 1349 1350 return 0; 1351} 1352#endif 1353 1354/* ----------------------------------------------------------- */ 1355 1356static void cx23885_vid_timeout(unsigned long data) 1357{ 1358 struct cx23885_dev *dev = (struct cx23885_dev *)data; 1359 struct cx23885_dmaqueue *q = &dev->vidq; 1360 struct cx23885_buffer *buf; 1361 unsigned long flags; 1362 1363 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1364 1365 cx_clear(VID_A_DMA_CTL, 0x11); 1366 1367 spin_lock_irqsave(&dev->slock, flags); 1368 while (!list_empty(&q->active)) { 1369 buf = list_entry(q->active.next, 1370 struct cx23885_buffer, vb.queue); 1371 list_del(&buf->vb.queue); 1372 buf->vb.state = VIDEOBUF_ERROR; 1373 wake_up(&buf->vb.done); 1374 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n", 1375 dev->name, buf, buf->vb.i, 1376 (unsigned long)buf->risc.dma); 1377 } 1378 cx23885_restart_video_queue(dev, q); 1379 spin_unlock_irqrestore(&dev->slock, flags); 1380} 1381 1382int cx23885_video_irq(struct cx23885_dev *dev, u32 status) 1383{ 1384 u32 mask, count; 1385 int handled = 0; 1386 1387 mask = cx_read(VID_A_INT_MSK); 1388 if (0 == (status & mask)) 1389 return handled; 1390 cx_write(VID_A_INT_STAT, status); 1391 1392 dprintk(2, "%s() status = 0x%08x\n", __func__, status); 1393 /* risc op code error */ 1394 if (status & (1 << 16)) { 1395 printk(KERN_WARNING "%s/0: video risc op code error\n", 1396 dev->name); 1397 cx_clear(VID_A_DMA_CTL, 0x11); 1398 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1399 } 1400 1401 /* risc1 y */ 1402 if (status & 0x01) { 1403 spin_lock(&dev->slock); 1404 count = cx_read(VID_A_GPCNT); 1405 cx23885_video_wakeup(dev, &dev->vidq, count); 1406 spin_unlock(&dev->slock); 1407 handled++; 1408 } 1409 /* risc2 y */ 1410 if (status & 0x10) { 1411 dprintk(2, "stopper video\n"); 1412 spin_lock(&dev->slock); 1413 cx23885_restart_video_queue(dev, &dev->vidq); 1414 spin_unlock(&dev->slock); 1415 handled++; 1416 } 1417 1418 return handled; 1419} 1420 1421/* ----------------------------------------------------------- */ 1422/* exported stuff */ 1423 1424static const struct file_operations video_fops = { 1425 .owner = THIS_MODULE, 1426 .open = video_open, 1427 .release = video_release, 1428 .read = video_read, 1429 .poll = video_poll, 1430 .mmap = video_mmap, 1431 .ioctl = video_ioctl2, 1432 .compat_ioctl = v4l_compat_ioctl32, 1433 .llseek = no_llseek, 1434}; 1435 1436static struct video_device cx23885_vbi_template; 1437static struct video_device cx23885_video_template = { 1438 .name = "cx23885-video", 1439 .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES, 1440 .fops = &video_fops, 1441 .minor = -1, 1442 .vidioc_querycap = vidioc_querycap, 1443 .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, 1444 .vidioc_g_fmt_cap = vidioc_g_fmt_cap, 1445 .vidioc_try_fmt_cap = vidioc_try_fmt_cap, 1446 .vidioc_s_fmt_cap = vidioc_s_fmt_cap, 1447 .vidioc_g_fmt_vbi = cx23885_vbi_fmt, 1448 .vidioc_try_fmt_vbi = cx23885_vbi_fmt, 1449 .vidioc_s_fmt_vbi = cx23885_vbi_fmt, 1450 .vidioc_reqbufs = vidioc_reqbufs, 1451 .vidioc_querybuf = vidioc_querybuf, 1452 .vidioc_qbuf = vidioc_qbuf, 1453 .vidioc_dqbuf = vidioc_dqbuf, 1454 .vidioc_s_std = vidioc_s_std, 1455 .vidioc_enum_input = vidioc_enum_input, 1456 .vidioc_g_input = vidioc_g_input, 1457 .vidioc_s_input = vidioc_s_input, 1458 .vidioc_queryctrl = vidioc_queryctrl, 1459 .vidioc_g_ctrl = vidioc_g_ctrl, 1460 .vidioc_s_ctrl = vidioc_s_ctrl, 1461 .vidioc_streamon = vidioc_streamon, 1462 .vidioc_streamoff = vidioc_streamoff, 1463#ifdef CONFIG_VIDEO_V4L1_COMPAT 1464 .vidiocgmbuf = vidiocgmbuf, 1465#endif 1466 .vidioc_g_tuner = vidioc_g_tuner, 1467 .vidioc_s_tuner = vidioc_s_tuner, 1468 .vidioc_g_frequency = vidioc_g_frequency, 1469 .vidioc_s_frequency = vidioc_s_frequency, 1470#ifdef CONFIG_VIDEO_ADV_DEBUG 1471 .vidioc_g_register = vidioc_g_register, 1472 .vidioc_s_register = vidioc_s_register, 1473#endif 1474 .tvnorms = CX23885_NORMS, 1475 .current_norm = V4L2_STD_NTSC_M, 1476}; 1477 1478static const struct file_operations radio_fops = { 1479 .owner = THIS_MODULE, 1480 .open = video_open, 1481 .release = video_release, 1482 .ioctl = video_ioctl2, 1483 .compat_ioctl = v4l_compat_ioctl32, 1484 .llseek = no_llseek, 1485}; 1486 1487 1488void cx23885_video_unregister(struct cx23885_dev *dev) 1489{ 1490 dprintk(1, "%s()\n", __func__); 1491 cx_clear(PCI_INT_MSK, 1); 1492 1493 if (dev->video_dev) { 1494 if (-1 != dev->video_dev->minor) 1495 video_unregister_device(dev->video_dev); 1496 else 1497 video_device_release(dev->video_dev); 1498 dev->video_dev = NULL; 1499 1500 btcx_riscmem_free(dev->pci, &dev->vidq.stopper); 1501 } 1502} 1503 1504int cx23885_video_register(struct cx23885_dev *dev) 1505{ 1506 int err; 1507 1508 dprintk(1, "%s()\n", __func__); 1509 spin_lock_init(&dev->slock); 1510 1511 /* Initialize VBI template */ 1512 memcpy(&cx23885_vbi_template, &cx23885_video_template, 1513 sizeof(cx23885_vbi_template)); 1514 strcpy(cx23885_vbi_template.name, "cx23885-vbi"); 1515 cx23885_vbi_template.type = VID_TYPE_TELETEXT|VID_TYPE_TUNER; 1516 1517 dev->tvnorm = cx23885_video_template.current_norm; 1518 1519 /* init video dma queues */ 1520 INIT_LIST_HEAD(&dev->vidq.active); 1521 INIT_LIST_HEAD(&dev->vidq.queued); 1522 dev->vidq.timeout.function = cx23885_vid_timeout; 1523 dev->vidq.timeout.data = (unsigned long)dev; 1524 init_timer(&dev->vidq.timeout); 1525 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper, 1526 VID_A_DMA_CTL, 0x11, 0x00); 1527 1528 /* Don't enable VBI yet */ 1529 cx_set(PCI_INT_MSK, 1); 1530 1531 1532 /* register v4l devices */ 1533 dev->video_dev = cx23885_vdev_init(dev, dev->pci, 1534 &cx23885_video_template, "video"); 1535 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, 1536 video_nr[dev->nr]); 1537 if (err < 0) { 1538 printk(KERN_INFO "%s: can't register video device\n", 1539 dev->name); 1540 goto fail_unreg; 1541 } 1542 printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n", 1543 dev->name, dev->video_dev->minor & 0x1f); 1544 /* initial device configuration */ 1545 mutex_lock(&dev->lock); 1546 cx23885_set_tvnorm(dev, dev->tvnorm); 1547 init_controls(dev); 1548 cx23885_video_mux(dev, 0); 1549 mutex_unlock(&dev->lock); 1550 1551 return 0; 1552 1553fail_unreg: 1554 cx23885_video_unregister(dev); 1555 return err; 1556} 1557 1558