Lines Matching defs:usbvision
2 * usbvision-core.c - driver for NT100x USB video capture devices
8 * This module is part of usbvision driver project.
55 #include "usbvision.h"
105 static int usbvision_request_intra (struct usb_usbvision *usbvision);
106 static int usbvision_unrequest_intra (struct usb_usbvision *usbvision);
107 static int usbvision_adjust_compression (struct usb_usbvision *usbvision);
108 static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision);
182 static int scratch_len(struct usb_usbvision *usbvision) /*This returns the amount of data actually in the buffer */
184 int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr;
195 static int scratch_free(struct usb_usbvision *usbvision)
197 int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr;
212 static int scratch_put(struct usb_usbvision *usbvision, unsigned char *data,
217 if (usbvision->scratch_write_ptr + len < scratch_buf_size) {
218 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len);
219 usbvision->scratch_write_ptr += len;
222 len_part = scratch_buf_size - usbvision->scratch_write_ptr;
223 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part);
225 usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */
228 memcpy(usbvision->scratch, data + len_part, len - len_part);
229 usbvision->scratch_write_ptr = len - len_part;
233 PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr);
239 static void scratch_mark_header(struct usb_usbvision *usbvision)
241 PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr);
243 usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] =
244 usbvision->scratch_write_ptr;
245 usbvision->scratch_headermarker_write_ptr += 1;
246 usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER;
250 static int scratch_get_extra(struct usb_usbvision *usbvision,
255 memcpy(data, usbvision->scratch + *ptr, len);
260 memcpy(data, usbvision->scratch + *ptr, len_part);
265 memcpy(data + len_part, usbvision->scratch, len - len_part);
277 static void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr,
280 *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size;
296 static int scratch_get(struct usb_usbvision *usbvision, unsigned char *data,
300 if (usbvision->scratch_read_ptr + len < scratch_buf_size) {
301 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len);
302 usbvision->scratch_read_ptr += len;
305 len_part = scratch_buf_size - usbvision->scratch_read_ptr;
306 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part);
308 usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */
311 memcpy(data + len_part, usbvision->scratch, len - len_part);
312 usbvision->scratch_read_ptr = len - len_part;
316 PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr);
323 static int scratch_get_header(struct usb_usbvision *usbvision,
328 PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr);
330 while (usbvision->scratch_headermarker_write_ptr -
331 usbvision->scratch_headermarker_read_ptr != 0) {
332 usbvision->scratch_read_ptr =
333 usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr];
334 usbvision->scratch_headermarker_read_ptr += 1;
335 usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER;
336 scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH);
352 static void scratch_rm_old(struct usb_usbvision *usbvision, int len)
355 usbvision->scratch_read_ptr += len;
356 usbvision->scratch_read_ptr %= scratch_buf_size;
357 PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr);
362 static void scratch_reset(struct usb_usbvision *usbvision)
366 usbvision->scratch_read_ptr = 0;
367 usbvision->scratch_write_ptr = 0;
368 usbvision->scratch_headermarker_read_ptr = 0;
369 usbvision->scratch_headermarker_write_ptr = 0;
370 usbvision->isocstate = IsocState_NoFrame;
373 int usbvision_scratch_alloc(struct usb_usbvision *usbvision)
375 usbvision->scratch = vmalloc_32(scratch_buf_size);
376 scratch_reset(usbvision);
377 if(usbvision->scratch == NULL) {
385 void usbvision_scratch_free(struct usb_usbvision *usbvision)
387 if (usbvision->scratch != NULL) {
388 vfree(usbvision->scratch);
389 usbvision->scratch = NULL;
405 static void usbvision_testpattern(struct usb_usbvision *usbvision,
415 if (usbvision == NULL) {
416 printk(KERN_ERR "%s: usbvision == NULL\n", proc);
419 if (usbvision->curFrame == NULL) {
420 printk(KERN_ERR "%s: usbvision->curFrame is NULL.\n", proc);
425 frame = usbvision->curFrame;
437 f = frame->data + (usbvision->curwidth * 3 * frame->curline);
438 for (i = 0; i < usbvision->curwidth; i++) {
483 int usbvision_decompress_alloc(struct usb_usbvision *usbvision)
486 usbvision->IntraFrameBuffer = vmalloc_32(IFB_size);
487 if (usbvision->IntraFrameBuffer == NULL) {
499 void usbvision_decompress_free(struct usb_usbvision *usbvision)
501 if (usbvision->IntraFrameBuffer != NULL) {
502 vfree(usbvision->IntraFrameBuffer);
503 usbvision->IntraFrameBuffer = NULL;
515 static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision)
520 frame = usbvision->curFrame;
522 while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) {
536 if (usbvision->requestIntra) {
539 usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time
540 usbvision_unrequest_intra(usbvision);
551 frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width;
552 frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height;
557 scratch_reset(usbvision);
564 if (usbvision->lastIsocFrameNum >= 0) {
565 if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) {
568 usbvision_request_intra(usbvision);
572 usbvision->lastIsocFrameNum = frame->isocHeader.frameNum;
574 usbvision->header_count++;
579 usbvision_testpattern(usbvision, 1, 1);
585 static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision,
597 frame = usbvision->curFrame;
602 if (scratch_len(usbvision) < len) {
612 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
614 clipmask_add = usbvision->stretch_width;
616 for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) {
618 scratch_get(usbvision, &yuyv[0], 4);
685 frame->curline += usbvision->stretch_height;
686 *pcopylen += frame->v4l2_linesize * usbvision->stretch_height;
697 static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed,
728 usbvision->ComprBlockTypes[BlockType]++;
793 static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision,
810 frame = usbvision->curFrame;
834 usbvision_adjust_compression(usbvision);
837 if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) {
842 scratch_set_extra_ptr(usbvision, &StripPtr, 0);
843 scratch_get_extra(usbvision, &StripHeader[0], &StripPtr,
848 usbvision->stripMagicErrors++;
854 usbvision->stripLineNumberErrors++;
861 usbvision_request_intra(usbvision);
864 if (scratch_len(usbvision) < StripLen) {
869 if (usbvision->IntraFrameBuffer) {
870 Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline;
871 U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2);
872 V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2);
881 scratch_get(usbvision, StripData, StripLen);
888 usbvision->BlockPos = BlockPos;
890 if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) {
893 if (StripLen > usbvision->maxStripLen) {
894 usbvision->maxStripLen = StripLen;
898 if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
903 if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
908 if (BlockPos > usbvision->comprBlockPos) {
909 usbvision->comprBlockPos = BlockPos;
912 usbvision->stripLenErrors++;
994 static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision,
1014 frame = usbvision->curFrame;
1016 f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height;
1019 /* In this mode usbvision transfer 3 bytes for every 2 pixels */
1022 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
1025 clipmask_add = usbvision->stretch_width;
1028 if (scratch_len(usbvision) < (int)pixel_per_line * 3) {
1042 scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset);
1043 scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size);
1044 scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset
1052 scratch_get(usbvision, &y[0], 2);
1053 scratch_get_extra(usbvision, &u, &u_ptr, 1);
1054 scratch_get_extra(usbvision, &v, &v_ptr, 1);
1141 scratch_get_extra(usbvision, &y[0], &y_ptr, 2);
1222 scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size);
1231 scratch_rm_old(usbvision, pixel_per_line * 3 / 2
1234 frame->curline += 2 * usbvision->stretch_height;
1235 *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height;
1251 static void usbvision_parse_data(struct usb_usbvision *usbvision)
1258 frame = usbvision->curFrame;
1260 PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision));
1265 if (scratch_len(usbvision)) {
1267 newstate = usbvision_find_header(usbvision);
1270 if (usbvision->isocMode == ISOC_MODE_YUV420) {
1271 newstate = usbvision_parse_lines_420(usbvision, ©len);
1273 else if (usbvision->isocMode == ISOC_MODE_YUV422) {
1274 newstate = usbvision_parse_lines_422(usbvision, ©len);
1276 else if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
1277 newstate = usbvision_parse_compress(usbvision, ©len);
1296 frame->sequence = usbvision->frame_num;
1298 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1299 list_move_tail(&(frame->frame), &usbvision->outqueue);
1300 usbvision->curFrame = NULL;
1301 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1303 usbvision->frame_num++;
1306 if (waitqueue_active(&usbvision->wait_frame)) {
1308 wake_up_interruptible(&usbvision->wait_frame);
1323 static int usbvision_compress_isochronous(struct usb_usbvision *usbvision,
1338 usbvision->isocErrCount++;
1345 usbvision->isocSkipCount++;
1350 usbvision->isocstate=IsocState_NoFrame;
1351 usbvision->isocSkipCount++;
1354 else if (packet_len > usbvision->isocPacketSize) {
1356 usbvision->isocSkipCount++;
1362 if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins
1363 usbvision->isocstate=IsocState_InFrame;
1364 scratch_mark_header(usbvision);
1365 usbvision_measure_bandwidth(usbvision);
1370 * If usbvision continues to feed us with data but there is no
1377 if (scratch_free(usbvision) < packet_len) {
1379 usbvision->scratch_ovf_count++;
1381 scratch_len(usbvision), packet_len);
1382 scratch_rm_old(usbvision, packet_len - scratch_free(usbvision));
1386 scratch_put(usbvision, packet_data, packet_len);
1388 usbvision->isocDataCount += packet_len;
1389 usbvision->isocPacketCount++;
1395 printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen);
1408 struct usb_usbvision *usbvision = urb->context;
1414 if (!USBVISION_IS_OPERATIONAL(usbvision))
1422 f = &usbvision->curFrame;
1425 if (usbvision->streaming == Stream_Interrupt) {
1426 usbvision->streaming = Stream_Idle;
1432 wake_up_interruptible(&usbvision->wait_stream);
1436 len = usbvision_compress_isochronous(usbvision, urb);
1438 usbvision->isocUrbCount++;
1439 usbvision->urb_length = len;
1441 if (usbvision->streaming == Stream_On) {
1444 if ((scratch_len(usbvision) > USBVISION_HEADER_LENGTH) &&
1445 (!list_empty(&(usbvision->inqueue))) ) {
1447 (*f) = list_entry(usbvision->inqueue.next,
1451 usbvision_parse_data(usbvision);
1458 scratch_reset(usbvision);
1463 scratch_reset(usbvision);
1466 usbvision->timeInIrq += jiffies - startTime;
1474 urb->dev = usbvision->dev;
1486 /* Low level usbvision access functions */
1496 int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg)
1501 if (!USBVISION_IS_OPERATIONAL(usbvision))
1504 errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1),
1520 * 0 -> usbvision is not yet ready
1524 int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
1529 if (!USBVISION_IS_OPERATIONAL(usbvision))
1532 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
1546 struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context;
1549 usbvision->ctrlUrbBusy = 0;
1550 if (waitqueue_active(&usbvision->ctrlUrb_wq)) {
1551 wake_up_interruptible(&usbvision->ctrlUrb_wq);
1556 static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address,
1565 // down(&usbvision->ctrlUrbLock);
1566 if (usbvision->ctrlUrbBusy) {
1567 // up(&usbvision->ctrlUrbLock);
1570 usbvision->ctrlUrbBusy = 1;
1571 // up(&usbvision->ctrlUrbLock);
1573 usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
1574 usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE;
1575 usbvision->ctrlUrbSetup.wValue = 0;
1576 usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address);
1577 usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len);
1578 usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev,
1579 usb_sndctrlpipe(usbvision->dev, 1),
1580 (unsigned char *)&usbvision->ctrlUrbSetup,
1581 (void *)usbvision->ctrlUrbBuffer, len,
1583 (void *)usbvision);
1585 memcpy(usbvision->ctrlUrbBuffer, data, len);
1587 errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC);
1590 usbvision->ctrlUrbBusy = 0;
1597 static int usbvision_init_compression(struct usb_usbvision *usbvision)
1601 usbvision->lastIsocFrameNum = -1;
1602 usbvision->isocDataCount = 0;
1603 usbvision->isocPacketCount = 0;
1604 usbvision->isocSkipCount = 0;
1605 usbvision->comprLevel = 50;
1606 usbvision->lastComprLevel = -1;
1607 usbvision->isocUrbCount = 0;
1608 usbvision->requestIntra = 1;
1609 usbvision->isocMeasureBandwidthCount = 0;
1618 static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision)
1622 if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames
1623 usbvision->isocMeasureBandwidthCount++;
1626 if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) {
1627 usbvision->usedBandwidth = usbvision->isocDataCount /
1628 (usbvision->isocPacketCount + usbvision->isocSkipCount) *
1629 100 / usbvision->isocPacketSize;
1631 usbvision->isocMeasureBandwidthCount = 0;
1632 usbvision->isocDataCount = 0;
1633 usbvision->isocPacketCount = 0;
1634 usbvision->isocSkipCount = 0;
1638 static int usbvision_adjust_compression (struct usb_usbvision *usbvision)
1644 if ((adjustCompression) && (usbvision->usedBandwidth > 0)) {
1645 usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2;
1646 RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100);
1647 if (usbvision->comprLevel != usbvision->lastComprLevel) {
1649 if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) {
1650 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1
1651 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2
1652 distorsion = 7 + 248 * usbvision->comprLevel / 100;
1655 distorsion = 1 + 42 * usbvision->comprLevel / 100;
1660 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1
1661 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2
1662 distorsion = 2 + 253 * usbvision->comprLevel / 100;
1665 distorsion = 0 + 43 * usbvision->comprLevel / 100;
1669 errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6);
1673 usbvision->lastComprLevel = usbvision->comprLevel;
1680 static int usbvision_request_intra (struct usb_usbvision *usbvision)
1686 usbvision->requestIntra = 1;
1688 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
1692 static int usbvision_unrequest_intra (struct usb_usbvision *usbvision)
1698 usbvision->requestIntra = 0;
1700 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
1705 * usbvision utility functions
1708 int usbvision_power_off(struct usb_usbvision *usbvision)
1714 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
1716 usbvision->power = 0;
1726 static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format)
1732 if (!USBVISION_IS_OPERATIONAL(usbvision))
1740 printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420",
1746 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
1756 usbvision->isocMode = format;
1765 int usbvision_set_output(struct usb_usbvision *usbvision, int width,
1773 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1779 usbvision->stretch_width = 2;
1783 usbvision->stretch_width = 1;
1788 usbvision->stretch_height = 2;
1792 usbvision->stretch_height = 1;
1802 usbvision->stretch_width, usbvision->stretch_height);
1805 if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) {
1811 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
1820 usbvision->curwidth = usbvision->stretch_width * UsbWidth;
1821 usbvision->curheight = usbvision->stretch_height * UsbHeight;
1824 if (usbvision->isocMode == ISOC_MODE_YUV422) {
1825 frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2);
1827 else if (usbvision->isocMode == ISOC_MODE_YUV420) {
1828 frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8);
1834 if (usbvision->tvnorm->id & V4L2_STD_625_50) {
1837 else if (usbvision->tvnorm->id & V4L2_STD_525_60) {
1855 errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop);
1864 int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames)
1869 usbvision->max_frame_size = PAGE_ALIGN(usbvision->curwidth *
1870 usbvision->curheight *
1871 usbvision->palette.bytes_per_pixel);
1874 usbvision->num_frames = number_of_frames;
1875 while (usbvision->num_frames > 0) {
1876 usbvision->fbuf_size = usbvision->num_frames * usbvision->max_frame_size;
1877 if((usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size))) {
1880 usbvision->num_frames--;
1883 spin_lock_init(&usbvision->queue_lock);
1884 init_waitqueue_head(&usbvision->wait_frame);
1885 init_waitqueue_head(&usbvision->wait_stream);
1888 for (i = 0; i < usbvision->num_frames; i++) {
1889 usbvision->frame[i].index = i;
1890 usbvision->frame[i].grabstate = FrameState_Unused;
1891 usbvision->frame[i].data = usbvision->fbuf +
1892 i * usbvision->max_frame_size;
1896 usbvision->stretch_width = 1;
1897 usbvision->stretch_height = 1;
1898 usbvision->frame[i].width = usbvision->curwidth;
1899 usbvision->frame[i].height = usbvision->curheight;
1900 usbvision->frame[i].bytes_read = 0;
1902 PDEBUG(DBG_FUNC, "allocated %d frames (%d bytes per frame)",usbvision->num_frames,usbvision->max_frame_size);
1903 return usbvision->num_frames;
1910 void usbvision_frames_free(struct usb_usbvision *usbvision)
1913 PDEBUG(DBG_FUNC, "free %d frames",usbvision->num_frames);
1915 if (usbvision->fbuf != NULL) {
1916 usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
1917 usbvision->fbuf = NULL;
1919 usbvision->num_frames = 0;
1926 void usbvision_empty_framequeues(struct usb_usbvision *usbvision)
1930 INIT_LIST_HEAD(&(usbvision->inqueue));
1931 INIT_LIST_HEAD(&(usbvision->outqueue));
1934 usbvision->frame[i].grabstate = FrameState_Unused;
1935 usbvision->frame[i].bytes_read = 0;
1943 int usbvision_stream_interrupt(struct usb_usbvision *usbvision)
1949 usbvision->streaming = Stream_Interrupt;
1950 ret = wait_event_timeout(usbvision->wait_stream,
1951 (usbvision->streaming == Stream_Idle),
1961 static int usbvision_set_compress_params(struct usb_usbvision *usbvision)
1980 if (!USBVISION_IS_OPERATIONAL(usbvision))
1983 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
1995 if (usbvision->bridgeType == BRIDGE_NT1004) {
2012 if (!USBVISION_IS_OPERATIONAL(usbvision))
2015 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2039 int usbvision_set_input(struct usb_usbvision *usbvision)
2046 if (!USBVISION_IS_OPERATIONAL(usbvision))
2050 if (usbvision_device_data[usbvision->DevModel].Vin_Reg1_override) {
2051 value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1;
2052 } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
2062 rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]);
2070 if (usbvision->tvnorm->id & V4L2_STD_PAL) {
2079 } else if (usbvision->tvnorm->id & V4L2_STD_SECAM) {
2099 if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) {
2100 value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff;
2101 value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8;
2104 if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) {
2105 value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff;
2106 value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8;
2109 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2122 if(usbvision_device_data[usbvision->DevModel].Dvi_yuv_override){
2123 dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv;
2125 else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
2130 return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value));
2137 * Set the buffer address needed by the usbvision dram to operate
2142 static int usbvision_set_dram_settings(struct usb_usbvision *usbvision)
2147 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
2183 if (!USBVISION_IS_OPERATIONAL(usbvision))
2186 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2198 if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR |
2201 rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00);
2214 int usbvision_power_on(struct usb_usbvision *usbvision)
2220 usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
2221 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
2224 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
2226 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG,
2229 usbvision->power = 1;
2237 * usbvision timer stuff
2243 struct usb_usbvision *usbvision = container_of(work, struct usb_usbvision, powerOffWork);
2246 down_interruptible(&usbvision->lock);
2247 if(usbvision->user == 0) {
2248 usbvision_i2c_unregister(usbvision);
2250 usbvision_power_off(usbvision);
2251 usbvision->initialized = 0;
2253 up(&usbvision->lock);
2258 struct usb_usbvision *usbvision = (void *) data;
2261 del_timer(&usbvision->powerOffTimer);
2262 INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off);
2263 (void) schedule_work(&usbvision->powerOffWork);
2267 void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision)
2269 init_timer(&usbvision->powerOffTimer);
2270 usbvision->powerOffTimer.data = (long) usbvision;
2271 usbvision->powerOffTimer.function = usbvision_powerOffTimer;
2274 void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision)
2276 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
2279 void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision)
2281 if (timer_pending(&usbvision->powerOffTimer)) {
2282 del_timer(&usbvision->powerOffTimer);
2291 int usbvision_begin_streaming(struct usb_usbvision *usbvision)
2295 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
2296 usbvision_init_compression(usbvision);
2298 errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID |
2299 usbvision->Vin_Reg2_Preset);
2308 int usbvision_restart_isoc(struct usb_usbvision *usbvision)
2314 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
2319 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
2325 usbvision_write_reg(usbvision, USBVISION_VIN_REG2,
2327 usbvision->Vin_Reg2_Preset)) < 0) return ret;
2330 while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) & 0x01) != 1);
2335 int usbvision_audio_off(struct usb_usbvision *usbvision)
2337 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) {
2341 usbvision->AudioMute = 0;
2342 usbvision->AudioChannel = USBVISION_AUDIO_MUTE;
2346 int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel)
2348 if (!usbvision->AudioMute) {
2349 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) {
2354 usbvision->AudioChannel = AudioChannel;
2358 int usbvision_setup(struct usb_usbvision *usbvision,int format)
2360 usbvision_set_video_format(usbvision, format);
2361 usbvision_set_dram_settings(usbvision);
2362 usbvision_set_compress_params(usbvision);
2363 usbvision_set_input(usbvision);
2364 usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT);
2365 usbvision_restart_isoc(usbvision);
2368 return USBVISION_IS_OPERATIONAL(usbvision);
2401 int usbvision_init_isoc(struct usb_usbvision *usbvision)
2403 struct usb_device *dev = usbvision->dev;
2407 if (!USBVISION_IS_OPERATIONAL(usbvision))
2410 usbvision->curFrame = NULL;
2411 scratch_reset(usbvision);
2414 errCode = usbvision_set_alternate(usbvision);
2416 usbvision->last_error = errCode;
2419 sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize;
2421 regValue = (16 - usbvision_read_reg(usbvision,
2424 usbvision->usb_bandwidth = regValue >> 1;
2426 usbvision->usb_bandwidth);
2441 usbvision->sbuf[bufIdx].urb = urb;
2442 usbvision->sbuf[bufIdx].data =
2443 usb_buffer_alloc(usbvision->dev,
2448 urb->context = usbvision;
2449 urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
2452 urb->transfer_buffer = usbvision->sbuf[bufIdx].data;
2456 usbvision->isocPacketSize * USBVISION_URB_FRAMES;
2458 k += usbvision->isocPacketSize) {
2461 usbvision->isocPacketSize;
2468 errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb,
2476 usbvision->streaming = Stream_Idle;
2477 PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x",
2479 usbvision->video_endp);
2490 void usbvision_stop_isoc(struct usb_usbvision *usbvision)
2493 int sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize;
2495 if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL))
2500 usb_kill_urb(usbvision->sbuf[bufIdx].urb);
2501 if (usbvision->sbuf[bufIdx].data){
2502 usb_buffer_free(usbvision->dev,
2504 usbvision->sbuf[bufIdx].data,
2505 usbvision->sbuf[bufIdx].urb->transfer_dma);
2507 usb_free_urb(usbvision->sbuf[bufIdx].urb);
2508 usbvision->sbuf[bufIdx].urb = NULL;
2513 usbvision->streaming = Stream_Off;
2515 if (!usbvision->remove_pending) {
2518 usbvision->ifaceAlt=0;
2519 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
2520 usbvision->ifaceAlt);
2524 usbvision->last_error = errCode;
2526 regValue = (16-usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
2527 usbvision->isocPacketSize =
2530 usbvision->isocPacketSize);
2532 usbvision->usb_bandwidth = regValue >> 1;
2534 usbvision->usb_bandwidth);
2538 int usbvision_muxsel(struct usb_usbvision *usbvision, int channel)
2548 RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs);
2549 usbvision->ctl_input = channel;
2552 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
2553 call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->ctl_input);
2559 switch (usbvision_device_data[usbvision->DevModel].Codec) {
2567 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
2581 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
2582 usbvision->channel = channel;
2583 usbvision_set_audio(usbvision, audio[channel]);