Blame view
drivers/media/common/saa7146_vbi.c
13.9 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 4 5 6 7 |
#include <media/saa7146_vv.h> static int vbi_pixel_to_capture = 720 * 2; static int vbi_workaround(struct saa7146_dev *dev) { struct saa7146_vv *vv = dev->vv_data; |
afd1a0c9a [PATCH] V4L/DVB: ... |
8 9 |
u32 *cpu; dma_addr_t dma_addr; |
1da177e4c Linux-2.6.12-rc2 |
10 11 12 13 14 |
int count = 0; int i; DECLARE_WAITQUEUE(wait, current); |
44d0b80e5 [media] saa7146: ... |
15 16 |
DEB_VBI("dev:%p ", dev); |
1da177e4c Linux-2.6.12-rc2 |
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
/* once again, a bug in the saa7146: the brs acquisition is buggy and especially the BXO-counter does not work as specified. there is this workaround, but please don't let me explain it. ;-) */ cpu = pci_alloc_consistent(dev->pci, 4096, &dma_addr); if (NULL == cpu) return -ENOMEM; /* setup some basic programming, just for the workaround */ saa7146_write(dev, BASE_EVEN3, dma_addr); saa7146_write(dev, BASE_ODD3, dma_addr+vbi_pixel_to_capture); saa7146_write(dev, PROT_ADDR3, dma_addr+4096); saa7146_write(dev, PITCH3, vbi_pixel_to_capture); saa7146_write(dev, BASE_PAGE3, 0x0); saa7146_write(dev, NUM_LINE_BYTE3, (2<<16)|((vbi_pixel_to_capture)<<0)); saa7146_write(dev, MC2, MASK_04|MASK_20); /* load brs-control register */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); /* BXO = 1h, BRS to outbound */ WRITE_RPS1(0xc000008c); /* wait for vbi_a or vbi_b*/ if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { |
44d0b80e5 [media] saa7146: ... |
42 43 |
DEB_D("...using port b "); |
1da177e4c Linux-2.6.12-rc2 |
44 45 46 47 48 49 |
WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_E_FID_B); WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_O_FID_B); /* WRITE_RPS1(CMD_PAUSE | MASK_09); */ } else { |
44d0b80e5 [media] saa7146: ... |
50 51 |
DEB_D("...using port a "); |
1da177e4c Linux-2.6.12-rc2 |
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 |
WRITE_RPS1(CMD_PAUSE | MASK_10); } /* upload brs */ WRITE_RPS1(CMD_UPLOAD | MASK_08); /* load brs-control register */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); /* BYO = 1, BXO = NQBIL (=1728 for PAL, for NTSC this is 858*2) - NumByte3 (=1440) = 288 */ WRITE_RPS1(((1728-(vbi_pixel_to_capture)) << 7) | MASK_19); /* wait for brs_done */ WRITE_RPS1(CMD_PAUSE | MASK_08); /* upload brs */ WRITE_RPS1(CMD_UPLOAD | MASK_08); /* load video-dma3 NumLines3 and NumBytes3 */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (NUM_LINE_BYTE3/4)); /* dev->vbi_count*2 lines, 720 pixel (= 1440 Bytes) */ WRITE_RPS1((2 << 16) | (vbi_pixel_to_capture)); /* load brs-control register */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); /* Set BRS right: note: this is an experimental value for BXO (=> PAL!) */ WRITE_RPS1((540 << 7) | (5 << 19)); // 5 == vbi_start /* wait for brs_done */ WRITE_RPS1(CMD_PAUSE | MASK_08); /* upload brs and video-dma3*/ WRITE_RPS1(CMD_UPLOAD | MASK_08 | MASK_04); /* load mc2 register: enable dma3 */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC1/4)); WRITE_RPS1(MASK_20 | MASK_04); /* generate interrupt */ WRITE_RPS1(CMD_INTERRUPT); /* stop rps1 */ WRITE_RPS1(CMD_STOP); /* we have to do the workaround twice to be sure that everything is ok */ for(i = 0; i < 2; i++) { /* indicate to the irq handler that we do the workaround */ saa7146_write(dev, MC2, MASK_31|MASK_15); saa7146_write(dev, NUM_LINE_BYTE3, (1<<16)|(2<<0)); saa7146_write(dev, MC2, MASK_04|MASK_20); /* enable rps1 irqs */ SAA7146_IER_ENABLE(dev,MASK_28); /* prepare to wait to be woken up by the irq-handler */ add_wait_queue(&vv->vbi_wq, &wait); current->state = TASK_INTERRUPTIBLE; /* start rps1 to enable workaround */ saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); saa7146_write(dev, MC1, (MASK_13 | MASK_29)); schedule(); |
44d0b80e5 [media] saa7146: ... |
106 107 |
DEB_VBI("brs bug workaround %d/1 ", i); |
1da177e4c Linux-2.6.12-rc2 |
108 109 110 111 112 113 114 115 116 117 118 |
remove_wait_queue(&vv->vbi_wq, &wait); current->state = TASK_RUNNING; /* disable rps1 irqs */ SAA7146_IER_DISABLE(dev,MASK_28); /* stop video-dma3 */ saa7146_write(dev, MC1, MASK_20); if(signal_pending(current)) { |
44d0b80e5 [media] saa7146: ... |
119 120 121 |
DEB_VBI("aborted (rps:0x%08x) ", saa7146_read(dev, RPS_ADDR1)); |
1da177e4c Linux-2.6.12-rc2 |
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 |
/* stop rps1 for sure */ saa7146_write(dev, MC1, MASK_29); pci_free_consistent(dev->pci, 4096, cpu, dma_addr); return -EINTR; } } pci_free_consistent(dev->pci, 4096, cpu, dma_addr); return 0; } static void saa7146_set_vbi_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) { struct saa7146_vv *vv = dev->vv_data; struct saa7146_video_dma vdma3; int count = 0; unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B; unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B; /* vdma3.base_even = 0xc8000000+2560*70; vdma3.base_odd = 0xc8000000; vdma3.prot_addr = 0xc8000000+2560*164; vdma3.pitch = 2560; vdma3.base_page = 0; vdma3.num_line_byte = (64<<16)|((vbi_pixel_to_capture)<<0); // set above! */ vdma3.base_even = buf->pt[2].offset; vdma3.base_odd = buf->pt[2].offset + 16 * vbi_pixel_to_capture; vdma3.prot_addr = buf->pt[2].offset + 16 * 2 * vbi_pixel_to_capture; vdma3.pitch = vbi_pixel_to_capture; vdma3.base_page = buf->pt[2].dma | ME1; vdma3.num_line_byte = (16 << 16) | vbi_pixel_to_capture; saa7146_write_out_dma(dev, 3, &vdma3); /* write beginning of rps-program */ count = 0; /* wait for o_fid_a/b / e_fid_a/b toggle only if bit 1 is not set */ /* we don't wait here for the first field anymore. this is different from the video capture and might cause that the first buffer is only half filled (with only one field). but since this is some sort of streaming data, this is not that negative. |
c1accaa21 V4L/DVB (6252): A... |
170 |
but by doing this, we can use the whole engine from videobuf-dma-sg.c... */ |
1da177e4c Linux-2.6.12-rc2 |
171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 |
/* WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | e_wait); WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | o_wait); */ /* set bit 1 */ WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC2/4)); WRITE_RPS1(MASK_28 | MASK_12); /* turn on video-dma3 */ WRITE_RPS1(CMD_WR_REG_MASK | (MC1/4)); WRITE_RPS1(MASK_04 | MASK_20); /* => mask */ WRITE_RPS1(MASK_04 | MASK_20); /* => values */ /* wait for o_fid_a/b / e_fid_a/b toggle */ WRITE_RPS1(CMD_PAUSE | o_wait); WRITE_RPS1(CMD_PAUSE | e_wait); /* generate interrupt */ WRITE_RPS1(CMD_INTERRUPT); /* stop */ WRITE_RPS1(CMD_STOP); /* enable rps1 irqs */ SAA7146_IER_ENABLE(dev, MASK_28); /* write the address of the rps-program */ saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); /* turn on rps */ saa7146_write(dev, MC1, (MASK_13 | MASK_29)); } static int buffer_activate(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) { struct saa7146_vv *vv = dev->vv_data; |
0fc0686e6 V4L/DVB (6600): V... |
210 |
buf->vb.state = VIDEOBUF_ACTIVE; |
1da177e4c Linux-2.6.12-rc2 |
211 |
|
44d0b80e5 [media] saa7146: ... |
212 213 |
DEB_VBI("dev:%p, buf:%p, next:%p ", dev, buf, next); |
1da177e4c Linux-2.6.12-rc2 |
214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 |
saa7146_set_vbi_capture(dev,buf,next); mod_timer(&vv->vbi_q.timeout, jiffies+BUFFER_TIMEOUT); return 0; } static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field) { struct file *file = q->priv_data; struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; struct saa7146_buf *buf = (struct saa7146_buf *)vb; int err = 0; int lines, llength, size; lines = 16 * 2 ; /* 2 fields */ llength = vbi_pixel_to_capture; size = lines * llength; |
44d0b80e5 [media] saa7146: ... |
233 234 |
DEB_VBI("vb:%p ", vb); |
1da177e4c Linux-2.6.12-rc2 |
235 236 |
if (0 != buf->vb.baddr && buf->vb.bsize < size) { |
44d0b80e5 [media] saa7146: ... |
237 238 |
DEB_VBI("size mismatch "); |
1da177e4c Linux-2.6.12-rc2 |
239 240 241 242 |
return -EINVAL; } if (buf->vb.size != size) |
c7b0ac054 V4L/DVB (3516): M... |
243 |
saa7146_dma_free(dev,q,buf); |
1da177e4c Linux-2.6.12-rc2 |
244 |
|
0fc0686e6 V4L/DVB (6600): V... |
245 |
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
c1accaa21 V4L/DVB (6252): A... |
246 |
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
1da177e4c Linux-2.6.12-rc2 |
247 248 249 250 251 252 253 |
buf->vb.width = llength; buf->vb.height = lines; buf->vb.size = size; buf->vb.field = field; // FIXME: check this saa7146_pgtable_free(dev->pci, &buf->pt[2]); saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); |
c7b0ac054 V4L/DVB (3516): M... |
254 |
err = videobuf_iolock(q,&buf->vb, NULL); |
1da177e4c Linux-2.6.12-rc2 |
255 256 |
if (err) goto oops; |
c1accaa21 V4L/DVB (6252): A... |
257 258 |
err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2], dma->sglist, dma->sglen); |
1da177e4c Linux-2.6.12-rc2 |
259 260 261 |
if (0 != err) return err; } |
0fc0686e6 V4L/DVB (6600): V... |
262 |
buf->vb.state = VIDEOBUF_PREPARED; |
1da177e4c Linux-2.6.12-rc2 |
263 264 265 266 267 |
buf->activate = buffer_activate; return 0; oops: |
44d0b80e5 [media] saa7146: ... |
268 269 |
DEB_VBI("error out "); |
c7b0ac054 V4L/DVB (3516): M... |
270 |
saa7146_dma_free(dev,q,buf); |
1da177e4c Linux-2.6.12-rc2 |
271 272 273 274 275 276 277 278 279 280 281 282 283 |
return err; } static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) { int llength,lines; lines = 16 * 2 ; /* 2 fields */ llength = vbi_pixel_to_capture; *size = lines * llength; *count = 2; |
44d0b80e5 [media] saa7146: ... |
284 285 |
DEB_VBI("count:%d, size:%d ", *count, *size); |
1da177e4c Linux-2.6.12-rc2 |
286 287 288 289 290 291 292 293 294 295 296 |
return 0; } static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) { struct file *file = q->priv_data; struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
44d0b80e5 [media] saa7146: ... |
297 298 |
DEB_VBI("vb:%p ", vb); |
1da177e4c Linux-2.6.12-rc2 |
299 300 301 302 303 304 305 306 307 |
saa7146_buffer_queue(dev,&vv->vbi_q,buf); } static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) { struct file *file = q->priv_data; struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
44d0b80e5 [media] saa7146: ... |
308 309 |
DEB_VBI("vb:%p ", vb); |
c7b0ac054 V4L/DVB (3516): M... |
310 |
saa7146_dma_free(dev,q,buf); |
1da177e4c Linux-2.6.12-rc2 |
311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 |
} static struct videobuf_queue_ops vbi_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, }; /* ------------------------------------------------------------------ */ static void vbi_stop(struct saa7146_fh *fh, struct file *file) { struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; unsigned long flags; |
44d0b80e5 [media] saa7146: ... |
327 328 |
DEB_VBI("dev:%p, fh:%p ", dev, fh); |
1da177e4c Linux-2.6.12-rc2 |
329 330 331 332 333 334 335 336 337 338 339 340 341 |
spin_lock_irqsave(&dev->slock,flags); /* disable rps1 */ saa7146_write(dev, MC1, MASK_29); /* disable rps1 irqs */ SAA7146_IER_DISABLE(dev, MASK_28); /* shut down dma 3 transfers */ saa7146_write(dev, MC1, MASK_20); if (vv->vbi_q.curr) { |
0fc0686e6 V4L/DVB (6600): V... |
342 |
saa7146_buffer_finish(dev,&vv->vbi_q,VIDEOBUF_DONE); |
1da177e4c Linux-2.6.12-rc2 |
343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 |
} videobuf_queue_cancel(&fh->vbi_q); vv->vbi_streaming = NULL; del_timer(&vv->vbi_q.timeout); del_timer(&fh->vbi_read_timeout); spin_unlock_irqrestore(&dev->slock, flags); } static void vbi_read_timeout(unsigned long data) { struct file *file = (struct file*)data; struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; |
44d0b80e5 [media] saa7146: ... |
360 361 |
DEB_VBI("dev:%p, fh:%p ", dev, fh); |
1da177e4c Linux-2.6.12-rc2 |
362 363 364 365 366 367 |
vbi_stop(fh, file); } static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv) { |
44d0b80e5 [media] saa7146: ... |
368 369 |
DEB_VBI("dev:%p ", dev); |
1da177e4c Linux-2.6.12-rc2 |
370 371 372 373 374 375 376 377 378 379 380 381 382 |
INIT_LIST_HEAD(&vv->vbi_q.queue); init_timer(&vv->vbi_q.timeout); vv->vbi_q.timeout.function = saa7146_buffer_timeout; vv->vbi_q.timeout.data = (unsigned long)(&vv->vbi_q); vv->vbi_q.dev = dev; init_waitqueue_head(&vv->vbi_wq); } static int vbi_open(struct saa7146_dev *dev, struct file *file) { |
abf84383e V4L/DVB: drivers/... |
383 |
struct saa7146_fh *fh = file->private_data; |
1da177e4c Linux-2.6.12-rc2 |
384 385 386 |
u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); int ret = 0; |
44d0b80e5 [media] saa7146: ... |
387 388 |
DEB_VBI("dev:%p, fh:%p ", dev, fh); |
1da177e4c Linux-2.6.12-rc2 |
389 390 391 |
ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS); if (0 == ret) { |
44d0b80e5 [media] saa7146: ... |
392 393 |
DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource "); |
1da177e4c Linux-2.6.12-rc2 |
394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 |
return -EBUSY; } /* adjust arbitrition control for video dma 3 */ arbtr_ctrl &= ~0x1f0000; arbtr_ctrl |= 0x1d0000; saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); saa7146_write(dev, MC2, (MASK_04|MASK_20)); memset(&fh->vbi_fmt,0,sizeof(fh->vbi_fmt)); fh->vbi_fmt.sampling_rate = 27000000; fh->vbi_fmt.offset = 248; /* todo */ fh->vbi_fmt.samples_per_line = vbi_pixel_to_capture; fh->vbi_fmt.sample_format = V4L2_PIX_FMT_GREY; /* fixme: this only works for PAL */ fh->vbi_fmt.start[0] = 5; fh->vbi_fmt.count[0] = 16; fh->vbi_fmt.start[1] = 312; fh->vbi_fmt.count[1] = 16; |
0705135e5 V4L/DVB (7237): C... |
415 416 |
videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops, &dev->pci->dev, &dev->slock, |
1da177e4c Linux-2.6.12-rc2 |
417 418 419 |
V4L2_BUF_TYPE_VBI_CAPTURE, V4L2_FIELD_SEQ_TB, // FIXME: does this really work? sizeof(struct saa7146_buf), |
9af39713f [media] saa7146: ... |
420 |
file, &dev->v4l2_lock); |
1da177e4c Linux-2.6.12-rc2 |
421 422 423 424 425 426 427 428 429 430 431 432 |
init_timer(&fh->vbi_read_timeout); fh->vbi_read_timeout.function = vbi_read_timeout; fh->vbi_read_timeout.data = (unsigned long)file; /* initialize the brs */ if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19)); } else { saa7146_write(dev, BRS_CTRL, 0x00000001); if (0 != (ret = vbi_workaround(dev))) { |
44d0b80e5 [media] saa7146: ... |
433 434 |
DEB_VBI("vbi workaround failed! "); |
1da177e4c Linux-2.6.12-rc2 |
435 436 437 438 439 440 441 442 443 444 445 |
/* return ret;*/ } } /* upload brs register */ saa7146_write(dev, MC2, (MASK_08|MASK_24)); return 0; } static void vbi_close(struct saa7146_dev *dev, struct file *file) { |
abf84383e V4L/DVB: drivers/... |
446 |
struct saa7146_fh *fh = file->private_data; |
1da177e4c Linux-2.6.12-rc2 |
447 |
struct saa7146_vv *vv = dev->vv_data; |
44d0b80e5 [media] saa7146: ... |
448 449 |
DEB_VBI("dev:%p, fh:%p ", dev, fh); |
1da177e4c Linux-2.6.12-rc2 |
450 451 452 453 454 455 456 457 458 459 460 461 462 |
if( fh == vv->vbi_streaming ) { vbi_stop(fh, file); } saa7146_res_free(fh, RESOURCE_DMA3_BRS); } static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) { struct saa7146_vv *vv = dev->vv_data; spin_lock(&dev->slock); if (vv->vbi_q.curr) { |
44d0b80e5 [media] saa7146: ... |
463 464 |
DEB_VBI("dev:%p, curr:%p ", dev, vv->vbi_q.curr); |
1da177e4c Linux-2.6.12-rc2 |
465 466 467 |
/* this must be += 2, one count for each field */ vv->vbi_fieldcount+=2; vv->vbi_q.curr->vb.field_count = vv->vbi_fieldcount; |
0fc0686e6 V4L/DVB (6600): V... |
468 |
saa7146_buffer_finish(dev,&vv->vbi_q,VIDEOBUF_DONE); |
1da177e4c Linux-2.6.12-rc2 |
469 |
} else { |
44d0b80e5 [media] saa7146: ... |
470 471 |
DEB_VBI("dev:%p ", dev); |
1da177e4c Linux-2.6.12-rc2 |
472 473 474 475 476 477 478 479 480 481 482 483 |
} saa7146_buffer_next(dev,&vv->vbi_q,1); spin_unlock(&dev->slock); } static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { struct saa7146_fh *fh = file->private_data; struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; ssize_t ret = 0; |
44d0b80e5 [media] saa7146: ... |
484 485 |
DEB_VBI("dev:%p, fh:%p ", dev, fh); |
1da177e4c Linux-2.6.12-rc2 |
486 487 488 489 490 491 492 493 |
if( NULL == vv->vbi_streaming ) { // fixme: check if dma3 is available // fixme: activate vbi engine here if necessary. (really?) vv->vbi_streaming = fh; } if( fh != vv->vbi_streaming ) { |
44d0b80e5 [media] saa7146: ... |
494 495 496 |
DEB_VBI("open %p is already using vbi capture ", vv->vbi_streaming); |
1da177e4c Linux-2.6.12-rc2 |
497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 |
return -EBUSY; } mod_timer(&fh->vbi_read_timeout, jiffies+BUFFER_TIMEOUT); ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1, file->f_flags & O_NONBLOCK); /* printk("BASE_ODD3: 0x%08x ", saa7146_read(dev, BASE_ODD3)); printk("BASE_EVEN3: 0x%08x ", saa7146_read(dev, BASE_EVEN3)); printk("PROT_ADDR3: 0x%08x ", saa7146_read(dev, PROT_ADDR3)); printk("PITCH3: 0x%08x ", saa7146_read(dev, PITCH3)); printk("BASE_PAGE3: 0x%08x ", saa7146_read(dev, BASE_PAGE3)); printk("NUM_LINE_BYTE3: 0x%08x ", saa7146_read(dev, NUM_LINE_BYTE3)); printk("BRS_CTRL: 0x%08x ", saa7146_read(dev, BRS_CTRL)); */ return ret; } struct saa7146_use_ops saa7146_vbi_uops = { |
50c25fff5 V4L/DVB (3218): W... |
523 524 |
.init = vbi_init, .open = vbi_open, |
1da177e4c Linux-2.6.12-rc2 |
525 526 |
.release = vbi_close, .irq_done = vbi_irq_done, |
50c25fff5 V4L/DVB (3218): W... |
527 |
.read = vbi_read, |
1da177e4c Linux-2.6.12-rc2 |
528 |
}; |