cx23885-video.c revision 2ba588942c45a03a29a7a097e62bf0beceddb0e8
1/* 2 * Driver for the Conexant CX23885 PCIe bridge 3 * 4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> 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#include <media/v4l2-ioctl.h> 37 38#ifdef CONFIG_VIDEO_V4L1_COMPAT 39/* Include V4L1 specific functions. Should be removed soon */ 40#include <linux/videodev.h> 41#endif 42 43MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards"); 44MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>"); 45MODULE_LICENSE("GPL"); 46 47/* ------------------------------------------------------------------ */ 48 49static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 50static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 51static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET }; 52 53module_param_array(video_nr, int, NULL, 0444); 54module_param_array(vbi_nr, int, NULL, 0444); 55module_param_array(radio_nr, int, NULL, 0444); 56 57MODULE_PARM_DESC(video_nr, "video device numbers"); 58MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 59MODULE_PARM_DESC(radio_nr, "radio device numbers"); 60 61static unsigned int video_debug; 62module_param(video_debug, int, 0644); 63MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 64 65static unsigned int irq_debug; 66module_param(irq_debug, int, 0644); 67MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); 68 69static unsigned int vid_limit = 16; 70module_param(vid_limit, int, 0644); 71MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); 72 73#define dprintk(level, fmt, arg...)\ 74 do { if (video_debug >= level)\ 75 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\ 76 } while (0) 77 78/* ------------------------------------------------------------------- */ 79/* static data */ 80 81#define FORMAT_FLAGS_PACKED 0x01 82 83static struct cx23885_fmt formats[] = { 84 { 85 .name = "8 bpp, gray", 86 .fourcc = V4L2_PIX_FMT_GREY, 87 .depth = 8, 88 .flags = FORMAT_FLAGS_PACKED, 89 }, { 90 .name = "15 bpp RGB, le", 91 .fourcc = V4L2_PIX_FMT_RGB555, 92 .depth = 16, 93 .flags = FORMAT_FLAGS_PACKED, 94 }, { 95 .name = "15 bpp RGB, be", 96 .fourcc = V4L2_PIX_FMT_RGB555X, 97 .depth = 16, 98 .flags = FORMAT_FLAGS_PACKED, 99 }, { 100 .name = "16 bpp RGB, le", 101 .fourcc = V4L2_PIX_FMT_RGB565, 102 .depth = 16, 103 .flags = FORMAT_FLAGS_PACKED, 104 }, { 105 .name = "16 bpp RGB, be", 106 .fourcc = V4L2_PIX_FMT_RGB565X, 107 .depth = 16, 108 .flags = FORMAT_FLAGS_PACKED, 109 }, { 110 .name = "24 bpp RGB, le", 111 .fourcc = V4L2_PIX_FMT_BGR24, 112 .depth = 24, 113 .flags = FORMAT_FLAGS_PACKED, 114 }, { 115 .name = "32 bpp RGB, le", 116 .fourcc = V4L2_PIX_FMT_BGR32, 117 .depth = 32, 118 .flags = FORMAT_FLAGS_PACKED, 119 }, { 120 .name = "32 bpp RGB, be", 121 .fourcc = V4L2_PIX_FMT_RGB32, 122 .depth = 32, 123 .flags = FORMAT_FLAGS_PACKED, 124 }, { 125 .name = "4:2:2, packed, YUYV", 126 .fourcc = V4L2_PIX_FMT_YUYV, 127 .depth = 16, 128 .flags = FORMAT_FLAGS_PACKED, 129 }, { 130 .name = "4:2:2, packed, UYVY", 131 .fourcc = V4L2_PIX_FMT_UYVY, 132 .depth = 16, 133 .flags = FORMAT_FLAGS_PACKED, 134 }, 135}; 136 137static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc) 138{ 139 unsigned int i; 140 141 for (i = 0; i < ARRAY_SIZE(formats); i++) 142 if (formats[i].fourcc == fourcc) 143 return formats+i; 144 145 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc); 146 return NULL; 147} 148 149/* ------------------------------------------------------------------- */ 150 151static const struct v4l2_queryctrl no_ctl = { 152 .name = "42", 153 .flags = V4L2_CTRL_FLAG_DISABLED, 154}; 155 156static struct cx23885_ctrl cx23885_ctls[] = { 157 /* --- video --- */ 158 { 159 .v = { 160 .id = V4L2_CID_BRIGHTNESS, 161 .name = "Brightness", 162 .minimum = 0x00, 163 .maximum = 0xff, 164 .step = 1, 165 .default_value = 0x7f, 166 .type = V4L2_CTRL_TYPE_INTEGER, 167 }, 168 .off = 128, 169 .reg = LUMA_CTRL, 170 .mask = 0x00ff, 171 .shift = 0, 172 }, { 173 .v = { 174 .id = V4L2_CID_CONTRAST, 175 .name = "Contrast", 176 .minimum = 0, 177 .maximum = 0xff, 178 .step = 1, 179 .default_value = 0x3f, 180 .type = V4L2_CTRL_TYPE_INTEGER, 181 }, 182 .off = 0, 183 .reg = LUMA_CTRL, 184 .mask = 0xff00, 185 .shift = 8, 186 }, { 187 .v = { 188 .id = V4L2_CID_HUE, 189 .name = "Hue", 190 .minimum = 0, 191 .maximum = 0xff, 192 .step = 1, 193 .default_value = 0x7f, 194 .type = V4L2_CTRL_TYPE_INTEGER, 195 }, 196 .off = 128, 197 .reg = CHROMA_CTRL, 198 .mask = 0xff0000, 199 .shift = 16, 200 }, { 201 /* strictly, this only describes only U saturation. 202 * V saturation is handled specially through code. 203 */ 204 .v = { 205 .id = V4L2_CID_SATURATION, 206 .name = "Saturation", 207 .minimum = 0, 208 .maximum = 0xff, 209 .step = 1, 210 .default_value = 0x7f, 211 .type = V4L2_CTRL_TYPE_INTEGER, 212 }, 213 .off = 0, 214 .reg = CHROMA_CTRL, 215 .mask = 0x00ff, 216 .shift = 0, 217 }, { 218 /* --- audio --- */ 219 .v = { 220 .id = V4L2_CID_AUDIO_MUTE, 221 .name = "Mute", 222 .minimum = 0, 223 .maximum = 1, 224 .default_value = 1, 225 .type = V4L2_CTRL_TYPE_BOOLEAN, 226 }, 227 .reg = PATH1_CTL1, 228 .mask = (0x1f << 24), 229 .shift = 24, 230 }, { 231 .v = { 232 .id = V4L2_CID_AUDIO_VOLUME, 233 .name = "Volume", 234 .minimum = 0, 235 .maximum = 0x3f, 236 .step = 1, 237 .default_value = 0x3f, 238 .type = V4L2_CTRL_TYPE_INTEGER, 239 }, 240 .reg = PATH1_VOL_CTL, 241 .mask = 0xff, 242 .shift = 0, 243 } 244}; 245static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls); 246 247/* Must be sorted from low to high control ID! */ 248static const u32 cx23885_user_ctrls[] = { 249 V4L2_CID_USER_CLASS, 250 V4L2_CID_BRIGHTNESS, 251 V4L2_CID_CONTRAST, 252 V4L2_CID_SATURATION, 253 V4L2_CID_HUE, 254 V4L2_CID_AUDIO_VOLUME, 255 V4L2_CID_AUDIO_MUTE, 256 0 257}; 258 259static const u32 *ctrl_classes[] = { 260 cx23885_user_ctrls, 261 NULL 262}; 263 264static void cx23885_video_wakeup(struct cx23885_dev *dev, 265 struct cx23885_dmaqueue *q, u32 count) 266{ 267 struct cx23885_buffer *buf; 268 int bc; 269 270 for (bc = 0;; bc++) { 271 if (list_empty(&q->active)) 272 break; 273 buf = list_entry(q->active.next, 274 struct cx23885_buffer, vb.queue); 275 276 /* count comes from the hw and is is 16bit wide -- 277 * this trick handles wrap-arounds correctly for 278 * up to 32767 buffers in flight... */ 279 if ((s16) (count - buf->count) < 0) 280 break; 281 282 do_gettimeofday(&buf->vb.ts); 283 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, 284 count, buf->count); 285 buf->vb.state = VIDEOBUF_DONE; 286 list_del(&buf->vb.queue); 287 wake_up(&buf->vb.done); 288 } 289 if (list_empty(&q->active)) 290 del_timer(&q->timeout); 291 else 292 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 293 if (bc != 1) 294 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", 295 __func__, bc); 296} 297 298static int 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 316static struct 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->parent = &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 336static int 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} 353 354/* ------------------------------------------------------------------- */ 355/* resource management */ 356 357static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh, 358 unsigned int bit) 359{ 360 dprintk(1, "%s()\n", __func__); 361 if (fh->resources & bit) 362 /* have it already allocated */ 363 return 1; 364 365 /* is it free? */ 366 mutex_lock(&dev->lock); 367 if (dev->resources & bit) { 368 /* no, someone else uses it */ 369 mutex_unlock(&dev->lock); 370 return 0; 371 } 372 /* it's free, grab it */ 373 fh->resources |= bit; 374 dev->resources |= bit; 375 dprintk(1, "res: get %d\n", bit); 376 mutex_unlock(&dev->lock); 377 return 1; 378} 379 380static int res_check(struct cx23885_fh *fh, unsigned int bit) 381{ 382 return fh->resources & bit; 383} 384 385static int res_locked(struct cx23885_dev *dev, unsigned int bit) 386{ 387 return dev->resources & bit; 388} 389 390static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh, 391 unsigned int bits) 392{ 393 BUG_ON((fh->resources & bits) != bits); 394 dprintk(1, "%s()\n", __func__); 395 396 mutex_lock(&dev->lock); 397 fh->resources &= ~bits; 398 dev->resources &= ~bits; 399 dprintk(1, "res: put %d\n", bits); 400 mutex_unlock(&dev->lock); 401} 402 403static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) 404{ 405 struct v4l2_routing route; 406 memset(&route, 0, sizeof(route)); 407 408 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", 409 __func__, 410 input, INPUT(input)->vmux, 411 INPUT(input)->gpio0, INPUT(input)->gpio1, 412 INPUT(input)->gpio2, INPUT(input)->gpio3); 413 dev->input = input; 414 415 route.input = INPUT(input)->vmux; 416 417 /* Tell the internal A/V decoder */ 418 cx23885_call_i2c_clients(&dev->i2c_bus[2], 419 VIDIOC_INT_S_VIDEO_ROUTING, &route); 420 421 return 0; 422} 423 424/* ------------------------------------------------------------------ */ 425static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width, 426 unsigned int height, enum v4l2_field field) 427{ 428 dprintk(1, "%s()\n", __func__); 429 return 0; 430} 431 432static int cx23885_start_video_dma(struct cx23885_dev *dev, 433 struct cx23885_dmaqueue *q, 434 struct cx23885_buffer *buf) 435{ 436 dprintk(1, "%s()\n", __func__); 437 438 /* setup fifo + format */ 439 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], 440 buf->bpl, buf->risc.dma); 441 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field); 442 443 /* reset counter */ 444 cx_write(VID_A_GPCNT_CTL, 3); 445 q->count = 1; 446 447 /* enable irq */ 448 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01); 449 cx_set(VID_A_INT_MSK, 0x000011); 450 451 /* start dma */ 452 cx_set(DEV_CNTRL2, (1<<5)); 453 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */ 454 455 return 0; 456} 457 458 459static int cx23885_restart_video_queue(struct cx23885_dev *dev, 460 struct cx23885_dmaqueue *q) 461{ 462 struct cx23885_buffer *buf, *prev; 463 struct list_head *item; 464 dprintk(1, "%s()\n", __func__); 465 466 if (!list_empty(&q->active)) { 467 buf = list_entry(q->active.next, struct cx23885_buffer, 468 vb.queue); 469 dprintk(2, "restart_queue [%p/%d]: restart dma\n", 470 buf, buf->vb.i); 471 cx23885_start_video_dma(dev, q, buf); 472 list_for_each(item, &q->active) { 473 buf = list_entry(item, struct cx23885_buffer, 474 vb.queue); 475 buf->count = q->count++; 476 } 477 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 478 return 0; 479 } 480 481 prev = NULL; 482 for (;;) { 483 if (list_empty(&q->queued)) 484 return 0; 485 buf = list_entry(q->queued.next, struct cx23885_buffer, 486 vb.queue); 487 if (NULL == prev) { 488 list_move_tail(&buf->vb.queue, &q->active); 489 cx23885_start_video_dma(dev, q, buf); 490 buf->vb.state = VIDEOBUF_ACTIVE; 491 buf->count = q->count++; 492 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 493 dprintk(2, "[%p/%d] restart_queue - first active\n", 494 buf, buf->vb.i); 495 496 } else if (prev->vb.width == buf->vb.width && 497 prev->vb.height == buf->vb.height && 498 prev->fmt == buf->fmt) { 499 list_move_tail(&buf->vb.queue, &q->active); 500 buf->vb.state = VIDEOBUF_ACTIVE; 501 buf->count = q->count++; 502 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 503 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ 504 dprintk(2, "[%p/%d] restart_queue - move to active\n", 505 buf, buf->vb.i); 506 } else { 507 return 0; 508 } 509 prev = buf; 510 } 511} 512 513static int buffer_setup(struct videobuf_queue *q, unsigned int *count, 514 unsigned int *size) 515{ 516 struct cx23885_fh *fh = q->priv_data; 517 518 *size = fh->fmt->depth*fh->width*fh->height >> 3; 519 if (0 == *count) 520 *count = 32; 521 while (*size * *count > vid_limit * 1024 * 1024) 522 (*count)--; 523 return 0; 524} 525 526static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, 527 enum v4l2_field field) 528{ 529 struct cx23885_fh *fh = q->priv_data; 530 struct cx23885_dev *dev = fh->dev; 531 struct cx23885_buffer *buf = 532 container_of(vb, struct cx23885_buffer, vb); 533 int rc, init_buffer = 0; 534 u32 line0_offset, line1_offset; 535 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); 536 537 BUG_ON(NULL == fh->fmt); 538 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) || 539 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm)) 540 return -EINVAL; 541 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; 542 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 543 return -EINVAL; 544 545 if (buf->fmt != fh->fmt || 546 buf->vb.width != fh->width || 547 buf->vb.height != fh->height || 548 buf->vb.field != field) { 549 buf->fmt = fh->fmt; 550 buf->vb.width = fh->width; 551 buf->vb.height = fh->height; 552 buf->vb.field = field; 553 init_buffer = 1; 554 } 555 556 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 557 init_buffer = 1; 558 rc = videobuf_iolock(q, &buf->vb, NULL); 559 if (0 != rc) 560 goto fail; 561 } 562 563 if (init_buffer) { 564 buf->bpl = buf->vb.width * buf->fmt->depth >> 3; 565 switch (buf->vb.field) { 566 case V4L2_FIELD_TOP: 567 cx23885_risc_buffer(dev->pci, &buf->risc, 568 dma->sglist, 0, UNSET, 569 buf->bpl, 0, buf->vb.height); 570 break; 571 case V4L2_FIELD_BOTTOM: 572 cx23885_risc_buffer(dev->pci, &buf->risc, 573 dma->sglist, UNSET, 0, 574 buf->bpl, 0, buf->vb.height); 575 break; 576 case V4L2_FIELD_INTERLACED: 577 if (dev->tvnorm & V4L2_STD_NTSC) { 578 /* cx25840 transmits NTSC bottom field first */ 579 dprintk(1, "%s() Creating NTSC risc\n", 580 __func__); 581 line0_offset = buf->bpl; 582 line1_offset = 0; 583 } else { 584 /* All other formats are top field first */ 585 dprintk(1, "%s() Creating PAL/SECAM risc\n", 586 __func__); 587 line0_offset = 0; 588 line1_offset = buf->bpl; 589 } 590 cx23885_risc_buffer(dev->pci, &buf->risc, 591 dma->sglist, line0_offset, 592 line1_offset, 593 buf->bpl, buf->bpl, 594 buf->vb.height >> 1); 595 break; 596 case V4L2_FIELD_SEQ_TB: 597 cx23885_risc_buffer(dev->pci, &buf->risc, 598 dma->sglist, 599 0, buf->bpl * (buf->vb.height >> 1), 600 buf->bpl, 0, 601 buf->vb.height >> 1); 602 break; 603 case V4L2_FIELD_SEQ_BT: 604 cx23885_risc_buffer(dev->pci, &buf->risc, 605 dma->sglist, 606 buf->bpl * (buf->vb.height >> 1), 0, 607 buf->bpl, 0, 608 buf->vb.height >> 1); 609 break; 610 default: 611 BUG(); 612 } 613 } 614 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", 615 buf, buf->vb.i, 616 fh->width, fh->height, fh->fmt->depth, fh->fmt->name, 617 (unsigned long)buf->risc.dma); 618 619 buf->vb.state = VIDEOBUF_PREPARED; 620 return 0; 621 622 fail: 623 cx23885_free_buffer(q, buf); 624 return rc; 625} 626 627static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 628{ 629 struct cx23885_buffer *buf = container_of(vb, 630 struct cx23885_buffer, vb); 631 struct cx23885_buffer *prev; 632 struct cx23885_fh *fh = vq->priv_data; 633 struct cx23885_dev *dev = fh->dev; 634 struct cx23885_dmaqueue *q = &dev->vidq; 635 636 /* add jump to stopper */ 637 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); 638 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); 639 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ 640 641 if (!list_empty(&q->queued)) { 642 list_add_tail(&buf->vb.queue, &q->queued); 643 buf->vb.state = VIDEOBUF_QUEUED; 644 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", 645 buf, buf->vb.i); 646 647 } else if (list_empty(&q->active)) { 648 list_add_tail(&buf->vb.queue, &q->active); 649 cx23885_start_video_dma(dev, q, buf); 650 buf->vb.state = VIDEOBUF_ACTIVE; 651 buf->count = q->count++; 652 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); 653 dprintk(2, "[%p/%d] buffer_queue - first active\n", 654 buf, buf->vb.i); 655 656 } else { 657 prev = list_entry(q->active.prev, struct cx23885_buffer, 658 vb.queue); 659 if (prev->vb.width == buf->vb.width && 660 prev->vb.height == buf->vb.height && 661 prev->fmt == buf->fmt) { 662 list_add_tail(&buf->vb.queue, &q->active); 663 buf->vb.state = VIDEOBUF_ACTIVE; 664 buf->count = q->count++; 665 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); 666 /* 64 bit bits 63-32 */ 667 prev->risc.jmp[2] = cpu_to_le32(0); 668 dprintk(2, "[%p/%d] buffer_queue - append to active\n", 669 buf, buf->vb.i); 670 671 } else { 672 list_add_tail(&buf->vb.queue, &q->queued); 673 buf->vb.state = VIDEOBUF_QUEUED; 674 dprintk(2, "[%p/%d] buffer_queue - first queued\n", 675 buf, buf->vb.i); 676 } 677 } 678} 679 680static void buffer_release(struct videobuf_queue *q, 681 struct videobuf_buffer *vb) 682{ 683 struct cx23885_buffer *buf = container_of(vb, 684 struct cx23885_buffer, vb); 685 686 cx23885_free_buffer(q, buf); 687} 688 689static struct videobuf_queue_ops cx23885_video_qops = { 690 .buf_setup = buffer_setup, 691 .buf_prepare = buffer_prepare, 692 .buf_queue = buffer_queue, 693 .buf_release = buffer_release, 694}; 695 696static struct videobuf_queue *get_queue(struct cx23885_fh *fh) 697{ 698 switch (fh->type) { 699 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 700 return &fh->vidq; 701 case V4L2_BUF_TYPE_VBI_CAPTURE: 702 return &fh->vbiq; 703 default: 704 BUG(); 705 return NULL; 706 } 707} 708 709static int get_resource(struct cx23885_fh *fh) 710{ 711 switch (fh->type) { 712 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 713 return RESOURCE_VIDEO; 714 case V4L2_BUF_TYPE_VBI_CAPTURE: 715 return RESOURCE_VBI; 716 default: 717 BUG(); 718 return 0; 719 } 720} 721 722static int video_open(struct file *file) 723{ 724 int minor = video_devdata(file)->minor; 725 struct cx23885_dev *h, *dev = NULL; 726 struct cx23885_fh *fh; 727 struct list_head *list; 728 enum v4l2_buf_type type = 0; 729 int radio = 0; 730 731 lock_kernel(); 732 list_for_each(list, &cx23885_devlist) { 733 h = list_entry(list, struct cx23885_dev, devlist); 734 if (h->video_dev && 735 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 unlock_kernel(); 752 return -ENODEV; 753 } 754 755 dprintk(1, "open minor=%d radio=%d type=%s\n", 756 minor, radio, v4l2_type_names[type]); 757 758 /* allocate + initialize per filehandle data */ 759 fh = kzalloc(sizeof(*fh), GFP_KERNEL); 760 if (NULL == fh) { 761 unlock_kernel(); 762 return -ENOMEM; 763 } 764 file->private_data = fh; 765 fh->dev = dev; 766 fh->radio = radio; 767 fh->type = type; 768 fh->width = 320; 769 fh->height = 240; 770 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); 771 772 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops, 773 &dev->pci->dev, &dev->slock, 774 V4L2_BUF_TYPE_VIDEO_CAPTURE, 775 V4L2_FIELD_INTERLACED, 776 sizeof(struct cx23885_buffer), 777 fh); 778 779 dprintk(1, "post videobuf_queue_init()\n"); 780 781 unlock_kernel(); 782 783 return 0; 784} 785 786static ssize_t video_read(struct file *file, char __user *data, 787 size_t count, loff_t *ppos) 788{ 789 struct cx23885_fh *fh = file->private_data; 790 791 switch (fh->type) { 792 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 793 if (res_locked(fh->dev, RESOURCE_VIDEO)) 794 return -EBUSY; 795 return videobuf_read_one(&fh->vidq, data, count, ppos, 796 file->f_flags & O_NONBLOCK); 797 case V4L2_BUF_TYPE_VBI_CAPTURE: 798 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 799 return -EBUSY; 800 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1, 801 file->f_flags & O_NONBLOCK); 802 default: 803 BUG(); 804 return 0; 805 } 806} 807 808static unsigned int video_poll(struct file *file, 809 struct poll_table_struct *wait) 810{ 811 struct cx23885_fh *fh = file->private_data; 812 struct cx23885_buffer *buf; 813 814 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { 815 if (!res_get(fh->dev, fh, RESOURCE_VBI)) 816 return POLLERR; 817 return videobuf_poll_stream(file, &fh->vbiq, wait); 818 } 819 820 if (res_check(fh, RESOURCE_VIDEO)) { 821 /* streaming capture */ 822 if (list_empty(&fh->vidq.stream)) 823 return POLLERR; 824 buf = list_entry(fh->vidq.stream.next, 825 struct cx23885_buffer, vb.stream); 826 } else { 827 /* read() capture */ 828 buf = (struct cx23885_buffer *)fh->vidq.read_buf; 829 if (NULL == buf) 830 return POLLERR; 831 } 832 poll_wait(file, &buf->vb.done, wait); 833 if (buf->vb.state == VIDEOBUF_DONE || 834 buf->vb.state == VIDEOBUF_ERROR) 835 return POLLIN|POLLRDNORM; 836 return 0; 837} 838 839static int video_release(struct file *file) 840{ 841 struct cx23885_fh *fh = file->private_data; 842 struct cx23885_dev *dev = fh->dev; 843 844 /* turn off overlay */ 845 if (res_check(fh, RESOURCE_OVERLAY)) { 846 /* FIXME */ 847 res_free(dev, fh, RESOURCE_OVERLAY); 848 } 849 850 /* stop video capture */ 851 if (res_check(fh, RESOURCE_VIDEO)) { 852 videobuf_queue_cancel(&fh->vidq); 853 res_free(dev, fh, RESOURCE_VIDEO); 854 } 855 if (fh->vidq.read_buf) { 856 buffer_release(&fh->vidq, fh->vidq.read_buf); 857 kfree(fh->vidq.read_buf); 858 } 859 860 /* stop vbi capture */ 861 if (res_check(fh, RESOURCE_VBI)) { 862 if (fh->vbiq.streaming) 863 videobuf_streamoff(&fh->vbiq); 864 if (fh->vbiq.reading) 865 videobuf_read_stop(&fh->vbiq); 866 res_free(dev, fh, RESOURCE_VBI); 867 } 868 869 videobuf_mmap_free(&fh->vidq); 870 file->private_data = NULL; 871 kfree(fh); 872 873 /* We are not putting the tuner to sleep here on exit, because 874 * we want to use the mpeg encoder in another session to capture 875 * tuner video. Closing this will result in no video to the encoder. 876 */ 877 878 return 0; 879} 880 881static int video_mmap(struct file *file, struct vm_area_struct *vma) 882{ 883 struct cx23885_fh *fh = file->private_data; 884 885 return videobuf_mmap_mapper(get_queue(fh), vma); 886} 887 888/* ------------------------------------------------------------------ */ 889/* VIDEO CTRL IOCTLS */ 890 891static int cx23885_get_control(struct cx23885_dev *dev, 892 struct v4l2_control *ctl) 893{ 894 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__); 895 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl); 896 return 0; 897} 898 899static int cx23885_set_control(struct cx23885_dev *dev, 900 struct v4l2_control *ctl) 901{ 902 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)" 903 " (disabled - no action)\n", __func__); 904 return 0; 905} 906 907static void init_controls(struct cx23885_dev *dev) 908{ 909 struct v4l2_control ctrl; 910 int i; 911 912 for (i = 0; i < CX23885_CTLS; i++) { 913 ctrl.id = cx23885_ctls[i].v.id; 914 ctrl.value = cx23885_ctls[i].v.default_value; 915 916 cx23885_set_control(dev, &ctrl); 917 } 918} 919 920/* ------------------------------------------------------------------ */ 921/* VIDEO IOCTLS */ 922 923static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 924 struct v4l2_format *f) 925{ 926 struct cx23885_fh *fh = priv; 927 928 f->fmt.pix.width = fh->width; 929 f->fmt.pix.height = fh->height; 930 f->fmt.pix.field = fh->vidq.field; 931 f->fmt.pix.pixelformat = fh->fmt->fourcc; 932 f->fmt.pix.bytesperline = 933 (f->fmt.pix.width * fh->fmt->depth) >> 3; 934 f->fmt.pix.sizeimage = 935 f->fmt.pix.height * f->fmt.pix.bytesperline; 936 937 return 0; 938} 939 940static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 941 struct v4l2_format *f) 942{ 943 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 944 struct cx23885_fmt *fmt; 945 enum v4l2_field field; 946 unsigned int maxw, maxh; 947 948 fmt = format_by_fourcc(f->fmt.pix.pixelformat); 949 if (NULL == fmt) 950 return -EINVAL; 951 952 field = f->fmt.pix.field; 953 maxw = norm_maxw(dev->tvnorm); 954 maxh = norm_maxh(dev->tvnorm); 955 956 if (V4L2_FIELD_ANY == field) { 957 field = (f->fmt.pix.height > maxh/2) 958 ? V4L2_FIELD_INTERLACED 959 : V4L2_FIELD_BOTTOM; 960 } 961 962 switch (field) { 963 case V4L2_FIELD_TOP: 964 case V4L2_FIELD_BOTTOM: 965 maxh = maxh / 2; 966 break; 967 case V4L2_FIELD_INTERLACED: 968 break; 969 default: 970 return -EINVAL; 971 } 972 973 f->fmt.pix.field = field; 974 if (f->fmt.pix.height < 32) 975 f->fmt.pix.height = 32; 976 if (f->fmt.pix.height > maxh) 977 f->fmt.pix.height = maxh; 978 if (f->fmt.pix.width < 48) 979 f->fmt.pix.width = 48; 980 if (f->fmt.pix.width > maxw) 981 f->fmt.pix.width = maxw; 982 f->fmt.pix.width &= ~0x03; 983 f->fmt.pix.bytesperline = 984 (f->fmt.pix.width * fmt->depth) >> 3; 985 f->fmt.pix.sizeimage = 986 f->fmt.pix.height * f->fmt.pix.bytesperline; 987 988 return 0; 989} 990 991static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 992 struct v4l2_format *f) 993{ 994 struct cx23885_fh *fh = priv; 995 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 996 int err; 997 998 dprintk(2, "%s()\n", __func__); 999 err = vidioc_try_fmt_vid_cap(file, priv, f); 1000 1001 if (0 != err) 1002 return err; 1003 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); 1004 fh->width = f->fmt.pix.width; 1005 fh->height = f->fmt.pix.height; 1006 fh->vidq.field = f->fmt.pix.field; 1007 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, 1008 fh->width, fh->height, fh->vidq.field); 1009 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f); 1010 return 0; 1011} 1012 1013static int vidioc_querycap(struct file *file, void *priv, 1014 struct v4l2_capability *cap) 1015{ 1016 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1017 1018 strcpy(cap->driver, "cx23885"); 1019 strlcpy(cap->card, cx23885_boards[dev->board].name, 1020 sizeof(cap->card)); 1021 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); 1022 cap->version = CX23885_VERSION_CODE; 1023 cap->capabilities = 1024 V4L2_CAP_VIDEO_CAPTURE | 1025 V4L2_CAP_READWRITE | 1026 V4L2_CAP_STREAMING | 1027 V4L2_CAP_VBI_CAPTURE; 1028 if (UNSET != dev->tuner_type) 1029 cap->capabilities |= V4L2_CAP_TUNER; 1030 return 0; 1031} 1032 1033static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1034 struct v4l2_fmtdesc *f) 1035{ 1036 if (unlikely(f->index >= ARRAY_SIZE(formats))) 1037 return -EINVAL; 1038 1039 strlcpy(f->description, formats[f->index].name, 1040 sizeof(f->description)); 1041 f->pixelformat = formats[f->index].fourcc; 1042 1043 return 0; 1044} 1045 1046#ifdef CONFIG_VIDEO_V4L1_COMPAT 1047static int vidiocgmbuf(struct file *file, void *priv, 1048 struct video_mbuf *mbuf) 1049{ 1050 struct cx23885_fh *fh = priv; 1051 struct videobuf_queue *q; 1052 struct v4l2_requestbuffers req; 1053 unsigned int i; 1054 int err; 1055 1056 q = get_queue(fh); 1057 memset(&req, 0, sizeof(req)); 1058 req.type = q->type; 1059 req.count = 8; 1060 req.memory = V4L2_MEMORY_MMAP; 1061 err = videobuf_reqbufs(q, &req); 1062 if (err < 0) 1063 return err; 1064 1065 mbuf->frames = req.count; 1066 mbuf->size = 0; 1067 for (i = 0; i < mbuf->frames; i++) { 1068 mbuf->offsets[i] = q->bufs[i]->boff; 1069 mbuf->size += q->bufs[i]->bsize; 1070 } 1071 return 0; 1072} 1073#endif 1074 1075static int vidioc_reqbufs(struct file *file, void *priv, 1076 struct v4l2_requestbuffers *p) 1077{ 1078 struct cx23885_fh *fh = priv; 1079 return videobuf_reqbufs(get_queue(fh), p); 1080} 1081 1082static int vidioc_querybuf(struct file *file, void *priv, 1083 struct v4l2_buffer *p) 1084{ 1085 struct cx23885_fh *fh = priv; 1086 return videobuf_querybuf(get_queue(fh), p); 1087} 1088 1089static int vidioc_qbuf(struct file *file, void *priv, 1090 struct v4l2_buffer *p) 1091{ 1092 struct cx23885_fh *fh = priv; 1093 return videobuf_qbuf(get_queue(fh), p); 1094} 1095 1096static int vidioc_dqbuf(struct file *file, void *priv, 1097 struct v4l2_buffer *p) 1098{ 1099 struct cx23885_fh *fh = priv; 1100 return videobuf_dqbuf(get_queue(fh), p, 1101 file->f_flags & O_NONBLOCK); 1102} 1103 1104static int vidioc_streamon(struct file *file, void *priv, 1105 enum v4l2_buf_type i) 1106{ 1107 struct cx23885_fh *fh = priv; 1108 struct cx23885_dev *dev = fh->dev; 1109 dprintk(1, "%s()\n", __func__); 1110 1111 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) 1112 return -EINVAL; 1113 if (unlikely(i != fh->type)) 1114 return -EINVAL; 1115 1116 if (unlikely(!res_get(dev, fh, get_resource(fh)))) 1117 return -EBUSY; 1118 return videobuf_streamon(get_queue(fh)); 1119} 1120 1121static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) 1122{ 1123 struct cx23885_fh *fh = priv; 1124 struct cx23885_dev *dev = fh->dev; 1125 int err, res; 1126 dprintk(1, "%s()\n", __func__); 1127 1128 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1129 return -EINVAL; 1130 if (i != fh->type) 1131 return -EINVAL; 1132 1133 res = get_resource(fh); 1134 err = videobuf_streamoff(get_queue(fh)); 1135 if (err < 0) 1136 return err; 1137 res_free(dev, fh, res); 1138 return 0; 1139} 1140 1141static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms) 1142{ 1143 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1144 dprintk(1, "%s()\n", __func__); 1145 1146 mutex_lock(&dev->lock); 1147 cx23885_set_tvnorm(dev, *tvnorms); 1148 mutex_unlock(&dev->lock); 1149 1150 return 0; 1151} 1152 1153static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i) 1154{ 1155 static const char *iname[] = { 1156 [CX23885_VMUX_COMPOSITE1] = "Composite1", 1157 [CX23885_VMUX_COMPOSITE2] = "Composite2", 1158 [CX23885_VMUX_COMPOSITE3] = "Composite3", 1159 [CX23885_VMUX_COMPOSITE4] = "Composite4", 1160 [CX23885_VMUX_SVIDEO] = "S-Video", 1161 [CX23885_VMUX_TELEVISION] = "Television", 1162 [CX23885_VMUX_CABLE] = "Cable TV", 1163 [CX23885_VMUX_DVB] = "DVB", 1164 [CX23885_VMUX_DEBUG] = "for debug only", 1165 }; 1166 unsigned int n; 1167 dprintk(1, "%s()\n", __func__); 1168 1169 n = i->index; 1170 if (n >= 4) 1171 return -EINVAL; 1172 1173 if (0 == INPUT(n)->type) 1174 return -EINVAL; 1175 1176 memset(i, 0, sizeof(*i)); 1177 i->index = n; 1178 i->type = V4L2_INPUT_TYPE_CAMERA; 1179 strcpy(i->name, iname[INPUT(n)->type]); 1180 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) || 1181 (CX23885_VMUX_CABLE == INPUT(n)->type)) 1182 i->type = V4L2_INPUT_TYPE_TUNER; 1183 i->std = CX23885_NORMS; 1184 return 0; 1185} 1186 1187static int vidioc_enum_input(struct file *file, void *priv, 1188 struct v4l2_input *i) 1189{ 1190 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1191 dprintk(1, "%s()\n", __func__); 1192 return cx23885_enum_input(dev, i); 1193} 1194 1195static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1196{ 1197 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1198 1199 *i = dev->input; 1200 dprintk(1, "%s() returns %d\n", __func__, *i); 1201 return 0; 1202} 1203 1204static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 1205{ 1206 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1207 1208 dprintk(1, "%s(%d)\n", __func__, i); 1209 1210 if (i >= 4) { 1211 dprintk(1, "%s() -EINVAL\n", __func__); 1212 return -EINVAL; 1213 } 1214 1215 mutex_lock(&dev->lock); 1216 cx23885_video_mux(dev, i); 1217 mutex_unlock(&dev->lock); 1218 return 0; 1219} 1220 1221static int vidioc_queryctrl(struct file *file, void *priv, 1222 struct v4l2_queryctrl *qctrl) 1223{ 1224 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); 1225 if (unlikely(qctrl->id == 0)) 1226 return -EINVAL; 1227 return cx23885_ctrl_query(qctrl); 1228} 1229 1230static int vidioc_g_ctrl(struct file *file, void *priv, 1231 struct v4l2_control *ctl) 1232{ 1233 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1234 1235 return cx23885_get_control(dev, ctl); 1236} 1237 1238static int vidioc_s_ctrl(struct file *file, void *priv, 1239 struct v4l2_control *ctl) 1240{ 1241 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1242 1243 return cx23885_set_control(dev, ctl); 1244} 1245 1246static int vidioc_g_tuner(struct file *file, void *priv, 1247 struct v4l2_tuner *t) 1248{ 1249 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1250 1251 if (unlikely(UNSET == dev->tuner_type)) 1252 return -EINVAL; 1253 if (0 != t->index) 1254 return -EINVAL; 1255 1256 strcpy(t->name, "Television"); 1257 t->type = V4L2_TUNER_ANALOG_TV; 1258 t->capability = V4L2_TUNER_CAP_NORM; 1259 t->rangehigh = 0xffffffffUL; 1260 t->signal = 0xffff ; /* LOCKED */ 1261 return 0; 1262} 1263 1264static int vidioc_s_tuner(struct file *file, void *priv, 1265 struct v4l2_tuner *t) 1266{ 1267 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; 1268 1269 if (UNSET == dev->tuner_type) 1270 return -EINVAL; 1271 if (0 != t->index) 1272 return -EINVAL; 1273 return 0; 1274} 1275 1276static int vidioc_g_frequency(struct file *file, void *priv, 1277 struct v4l2_frequency *f) 1278{ 1279 struct cx23885_fh *fh = priv; 1280 struct cx23885_dev *dev = fh->dev; 1281 1282 if (unlikely(UNSET == dev->tuner_type)) 1283 return -EINVAL; 1284 1285 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */ 1286 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 1287 f->frequency = dev->freq; 1288 1289 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f); 1290 1291 return 0; 1292} 1293 1294static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f) 1295{ 1296 if (unlikely(UNSET == dev->tuner_type)) 1297 return -EINVAL; 1298 if (unlikely(f->tuner != 0)) 1299 return -EINVAL; 1300 1301 mutex_lock(&dev->lock); 1302 dev->freq = f->frequency; 1303 1304 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f); 1305 1306 /* When changing channels it is required to reset TVAUDIO */ 1307 msleep(10); 1308 1309 mutex_unlock(&dev->lock); 1310 1311 return 0; 1312} 1313 1314static int vidioc_s_frequency(struct file *file, void *priv, 1315 struct v4l2_frequency *f) 1316{ 1317 struct cx23885_fh *fh = priv; 1318 struct cx23885_dev *dev = fh->dev; 1319 1320 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) 1321 return -EINVAL; 1322 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) 1323 return -EINVAL; 1324 1325 return 1326 cx23885_set_freq(dev, f); 1327} 1328 1329#ifdef CONFIG_VIDEO_ADV_DEBUG 1330static int vidioc_g_register(struct file *file, void *fh, 1331 struct v4l2_dbg_register *reg) 1332{ 1333 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1334 1335 if (!v4l2_chip_match_host(®->match)) 1336 return -EINVAL; 1337 1338 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg); 1339 1340 return 0; 1341} 1342 1343static int vidioc_s_register(struct file *file, void *fh, 1344 struct v4l2_dbg_register *reg) 1345{ 1346 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev; 1347 1348 if (!v4l2_chip_match_host(®->match)) 1349 return -EINVAL; 1350 1351 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg); 1352 1353 return 0; 1354} 1355#endif 1356 1357/* ----------------------------------------------------------- */ 1358 1359static void cx23885_vid_timeout(unsigned long data) 1360{ 1361 struct cx23885_dev *dev = (struct cx23885_dev *)data; 1362 struct cx23885_dmaqueue *q = &dev->vidq; 1363 struct cx23885_buffer *buf; 1364 unsigned long flags; 1365 1366 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1367 1368 cx_clear(VID_A_DMA_CTL, 0x11); 1369 1370 spin_lock_irqsave(&dev->slock, flags); 1371 while (!list_empty(&q->active)) { 1372 buf = list_entry(q->active.next, 1373 struct cx23885_buffer, vb.queue); 1374 list_del(&buf->vb.queue); 1375 buf->vb.state = VIDEOBUF_ERROR; 1376 wake_up(&buf->vb.done); 1377 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n", 1378 dev->name, buf, buf->vb.i, 1379 (unsigned long)buf->risc.dma); 1380 } 1381 cx23885_restart_video_queue(dev, q); 1382 spin_unlock_irqrestore(&dev->slock, flags); 1383} 1384 1385int cx23885_video_irq(struct cx23885_dev *dev, u32 status) 1386{ 1387 u32 mask, count; 1388 int handled = 0; 1389 1390 mask = cx_read(VID_A_INT_MSK); 1391 if (0 == (status & mask)) 1392 return handled; 1393 cx_write(VID_A_INT_STAT, status); 1394 1395 dprintk(2, "%s() status = 0x%08x\n", __func__, status); 1396 /* risc op code error */ 1397 if (status & (1 << 16)) { 1398 printk(KERN_WARNING "%s/0: video risc op code error\n", 1399 dev->name); 1400 cx_clear(VID_A_DMA_CTL, 0x11); 1401 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]); 1402 } 1403 1404 /* risc1 y */ 1405 if (status & 0x01) { 1406 spin_lock(&dev->slock); 1407 count = cx_read(VID_A_GPCNT); 1408 cx23885_video_wakeup(dev, &dev->vidq, count); 1409 spin_unlock(&dev->slock); 1410 handled++; 1411 } 1412 /* risc2 y */ 1413 if (status & 0x10) { 1414 dprintk(2, "stopper video\n"); 1415 spin_lock(&dev->slock); 1416 cx23885_restart_video_queue(dev, &dev->vidq); 1417 spin_unlock(&dev->slock); 1418 handled++; 1419 } 1420 1421 return handled; 1422} 1423 1424/* ----------------------------------------------------------- */ 1425/* exported stuff */ 1426 1427static const struct v4l2_file_operations video_fops = { 1428 .owner = THIS_MODULE, 1429 .open = video_open, 1430 .release = video_release, 1431 .read = video_read, 1432 .poll = video_poll, 1433 .mmap = video_mmap, 1434 .ioctl = video_ioctl2, 1435}; 1436 1437static const struct v4l2_ioctl_ops video_ioctl_ops = { 1438 .vidioc_querycap = vidioc_querycap, 1439 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1440 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1441 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1442 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1443 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt, 1444 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt, 1445 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt, 1446 .vidioc_reqbufs = vidioc_reqbufs, 1447 .vidioc_querybuf = vidioc_querybuf, 1448 .vidioc_qbuf = vidioc_qbuf, 1449 .vidioc_dqbuf = vidioc_dqbuf, 1450 .vidioc_s_std = vidioc_s_std, 1451 .vidioc_enum_input = vidioc_enum_input, 1452 .vidioc_g_input = vidioc_g_input, 1453 .vidioc_s_input = vidioc_s_input, 1454 .vidioc_queryctrl = vidioc_queryctrl, 1455 .vidioc_g_ctrl = vidioc_g_ctrl, 1456 .vidioc_s_ctrl = vidioc_s_ctrl, 1457 .vidioc_streamon = vidioc_streamon, 1458 .vidioc_streamoff = vidioc_streamoff, 1459#ifdef CONFIG_VIDEO_V4L1_COMPAT 1460 .vidiocgmbuf = vidiocgmbuf, 1461#endif 1462 .vidioc_g_tuner = vidioc_g_tuner, 1463 .vidioc_s_tuner = vidioc_s_tuner, 1464 .vidioc_g_frequency = vidioc_g_frequency, 1465 .vidioc_s_frequency = vidioc_s_frequency, 1466#ifdef CONFIG_VIDEO_ADV_DEBUG 1467 .vidioc_g_register = vidioc_g_register, 1468 .vidioc_s_register = vidioc_s_register, 1469#endif 1470}; 1471 1472static struct video_device cx23885_vbi_template; 1473static struct video_device cx23885_video_template = { 1474 .name = "cx23885-video", 1475 .fops = &video_fops, 1476 .minor = -1, 1477 .ioctl_ops = &video_ioctl_ops, 1478 .tvnorms = CX23885_NORMS, 1479 .current_norm = V4L2_STD_NTSC_M, 1480}; 1481 1482static const struct v4l2_file_operations radio_fops = { 1483 .owner = THIS_MODULE, 1484 .open = video_open, 1485 .release = video_release, 1486 .ioctl = video_ioctl2, 1487}; 1488 1489 1490void cx23885_video_unregister(struct cx23885_dev *dev) 1491{ 1492 dprintk(1, "%s()\n", __func__); 1493 cx_clear(PCI_INT_MSK, 1); 1494 1495 if (dev->video_dev) { 1496 if (-1 != dev->video_dev->minor) 1497 video_unregister_device(dev->video_dev); 1498 else 1499 video_device_release(dev->video_dev); 1500 dev->video_dev = NULL; 1501 1502 btcx_riscmem_free(dev->pci, &dev->vidq.stopper); 1503 } 1504} 1505 1506int cx23885_video_register(struct cx23885_dev *dev) 1507{ 1508 int err; 1509 1510 dprintk(1, "%s()\n", __func__); 1511 spin_lock_init(&dev->slock); 1512 1513 /* Initialize VBI template */ 1514 memcpy(&cx23885_vbi_template, &cx23885_video_template, 1515 sizeof(cx23885_vbi_template)); 1516 strcpy(cx23885_vbi_template.name, "cx23885-vbi"); 1517 1518 dev->tvnorm = cx23885_video_template.current_norm; 1519 1520 /* init video dma queues */ 1521 INIT_LIST_HEAD(&dev->vidq.active); 1522 INIT_LIST_HEAD(&dev->vidq.queued); 1523 dev->vidq.timeout.function = cx23885_vid_timeout; 1524 dev->vidq.timeout.data = (unsigned long)dev; 1525 init_timer(&dev->vidq.timeout); 1526 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper, 1527 VID_A_DMA_CTL, 0x11, 0x00); 1528 1529 /* Don't enable VBI yet */ 1530 cx_set(PCI_INT_MSK, 1); 1531 1532 1533 /* register v4l devices */ 1534 dev->video_dev = cx23885_vdev_init(dev, dev->pci, 1535 &cx23885_video_template, "video"); 1536 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, 1537 video_nr[dev->nr]); 1538 if (err < 0) { 1539 printk(KERN_INFO "%s: can't register video device\n", 1540 dev->name); 1541 goto fail_unreg; 1542 } 1543 printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n", 1544 dev->name, dev->video_dev->num); 1545 /* initial device configuration */ 1546 mutex_lock(&dev->lock); 1547 cx23885_set_tvnorm(dev, dev->tvnorm); 1548 init_controls(dev); 1549 cx23885_video_mux(dev, 0); 1550 mutex_unlock(&dev->lock); 1551 1552 return 0; 1553 1554fail_unreg: 1555 cx23885_video_unregister(dev); 1556 return err; 1557} 1558 1559