2 * Auvitek AU0828 USB Bridge (Analog video support)
4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
5 * Copyright (C) 2005-2008 Auvitek International, Ltd.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * As published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
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., 51 Franklin Street, Fifth Floor, Boston, MA
25 * VBI support is not yet working
26 * The hardware scaler supported is unimplemented
27 * AC97 audio support is unimplemented (only i2s audio mode)
31 #include <linux/module.h>
32 #include <linux/slab.h>
33 #include <linux/init.h>
34 #include <linux/device.h>
35 #include <linux/suspend.h>
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-chip-ident.h>
39 #include <media/tuner.h>
41 #include "au0828-reg.h"
43 static DEFINE_MUTEX(au0828_sysfs_lock);
45 /* ------------------------------------------------------------------
47 ------------------------------------------------------------------*/
49 static unsigned int isoc_debug;
50 module_param(isoc_debug, int, 0644);
51 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
53 #define au0828_isocdbg(fmt, arg...) \
56 printk(KERN_INFO "au0828 %s :"fmt, \
61 static inline void print_err_status(struct au0828_dev *dev,
62 int packet, int status)
64 char *errmsg = "Unknown";
68 errmsg = "unlinked synchronuously";
71 errmsg = "unlinked asynchronuously";
74 errmsg = "Buffer error (overrun)";
77 errmsg = "Stalled (device not responding)";
80 errmsg = "Babble (bad cable?)";
83 errmsg = "Bit-stuff error (bad cable?)";
86 errmsg = "CRC/Timeout (could be anything)";
89 errmsg = "Device does not respond";
93 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
95 au0828_isocdbg("URB packet %d, status %d [%s].\n",
96 packet, status, errmsg);
100 static int check_dev(struct au0828_dev *dev)
102 if (dev->dev_state & DEV_DISCONNECTED) {
103 printk(KERN_INFO "v4l2 ioctl: device not present\n");
107 if (dev->dev_state & DEV_MISCONFIGURED) {
108 printk(KERN_INFO "v4l2 ioctl: device is misconfigured; "
109 "close and open it again\n");
116 * IRQ callback, called by URB callback
118 static void au0828_irq_callback(struct urb *urb)
120 struct au0828_dmaqueue *dma_q = urb->context;
121 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
122 unsigned long flags = 0;
125 switch (urb->status) {
126 case 0: /* success */
127 case -ETIMEDOUT: /* NAK */
129 case -ECONNRESET: /* kill */
132 au0828_isocdbg("au0828_irq_callback called: status kill\n");
134 default: /* unknown error */
135 au0828_isocdbg("urb completition error %d.\n", urb->status);
139 /* Copy data from URB */
140 spin_lock_irqsave(&dev->slock, flags);
141 dev->isoc_ctl.isoc_copy(dev, urb);
142 spin_unlock_irqrestore(&dev->slock, flags);
144 /* Reset urb buffers */
145 for (i = 0; i < urb->number_of_packets; i++) {
146 urb->iso_frame_desc[i].status = 0;
147 urb->iso_frame_desc[i].actual_length = 0;
151 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
153 au0828_isocdbg("urb resubmit failed (error=%i)\n",
159 * Stop and Deallocate URBs
161 void au0828_uninit_isoc(struct au0828_dev *dev)
166 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
168 dev->isoc_ctl.nfields = -1;
169 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
170 urb = dev->isoc_ctl.urb[i];
172 if (!irqs_disabled())
177 if (dev->isoc_ctl.transfer_buffer[i]) {
178 usb_free_coherent(dev->usbdev,
179 urb->transfer_buffer_length,
180 dev->isoc_ctl.transfer_buffer[i],
184 dev->isoc_ctl.urb[i] = NULL;
186 dev->isoc_ctl.transfer_buffer[i] = NULL;
189 kfree(dev->isoc_ctl.urb);
190 kfree(dev->isoc_ctl.transfer_buffer);
192 dev->isoc_ctl.urb = NULL;
193 dev->isoc_ctl.transfer_buffer = NULL;
194 dev->isoc_ctl.num_bufs = 0;
198 * Allocate URBs and start IRQ
200 int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
201 int num_bufs, int max_pkt_size,
202 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
204 struct au0828_dmaqueue *dma_q = &dev->vidq;
211 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
213 /* De-allocates all pending stuff */
214 au0828_uninit_isoc(dev);
216 dev->isoc_ctl.isoc_copy = isoc_copy;
217 dev->isoc_ctl.num_bufs = num_bufs;
219 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
220 if (!dev->isoc_ctl.urb) {
221 au0828_isocdbg("cannot alloc memory for usb buffers\n");
225 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
227 if (!dev->isoc_ctl.transfer_buffer) {
228 au0828_isocdbg("cannot allocate memory for usb transfer\n");
229 kfree(dev->isoc_ctl.urb);
233 dev->isoc_ctl.max_pkt_size = max_pkt_size;
234 dev->isoc_ctl.buf = NULL;
236 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
238 /* allocate urbs and transfer buffers */
239 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
240 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
242 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
243 au0828_uninit_isoc(dev);
246 dev->isoc_ctl.urb[i] = urb;
248 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
249 sb_size, GFP_KERNEL, &urb->transfer_dma);
250 if (!dev->isoc_ctl.transfer_buffer[i]) {
251 printk("unable to allocate %i bytes for transfer"
254 in_interrupt() ? " while in int" : "");
255 au0828_uninit_isoc(dev);
258 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
260 pipe = usb_rcvisocpipe(dev->usbdev,
261 dev->isoc_in_endpointaddr),
263 usb_fill_int_urb(urb, dev->usbdev, pipe,
264 dev->isoc_ctl.transfer_buffer[i], sb_size,
265 au0828_irq_callback, dma_q, 1);
267 urb->number_of_packets = max_packets;
268 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
271 for (j = 0; j < max_packets; j++) {
272 urb->iso_frame_desc[j].offset = k;
273 urb->iso_frame_desc[j].length =
274 dev->isoc_ctl.max_pkt_size;
275 k += dev->isoc_ctl.max_pkt_size;
279 init_waitqueue_head(&dma_q->wq);
281 /* submit urbs and enables IRQ */
282 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
283 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
285 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
287 au0828_uninit_isoc(dev);
296 * Announces that a buffer were filled and request the next
298 static inline void buffer_filled(struct au0828_dev *dev,
299 struct au0828_dmaqueue *dma_q,
300 struct au0828_buffer *buf)
302 /* Advice that buffer was filled */
303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
305 buf->vb.state = VIDEOBUF_DONE;
306 buf->vb.field_count++;
307 do_gettimeofday(&buf->vb.ts);
309 dev->isoc_ctl.buf = NULL;
311 list_del(&buf->vb.queue);
312 wake_up(&buf->vb.done);
315 static inline void vbi_buffer_filled(struct au0828_dev *dev,
316 struct au0828_dmaqueue *dma_q,
317 struct au0828_buffer *buf)
319 /* Advice that buffer was filled */
320 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
322 buf->vb.state = VIDEOBUF_DONE;
323 buf->vb.field_count++;
324 do_gettimeofday(&buf->vb.ts);
326 dev->isoc_ctl.vbi_buf = NULL;
328 list_del(&buf->vb.queue);
329 wake_up(&buf->vb.done);
333 * Identify the buffer header type and properly handles
335 static void au0828_copy_video(struct au0828_dev *dev,
336 struct au0828_dmaqueue *dma_q,
337 struct au0828_buffer *buf,
339 unsigned char *outp, unsigned long len)
341 void *fieldstart, *startwrite, *startread;
342 int linesdone, currlinedone, offset, lencopy, remain;
343 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
348 if (dma_q->pos + len > buf->vb.size)
349 len = buf->vb.size - dma_q->pos;
354 /* Interlaces frame */
358 fieldstart = outp + bytesperline;
360 linesdone = dma_q->pos / bytesperline;
361 currlinedone = dma_q->pos % bytesperline;
362 offset = linesdone * bytesperline * 2 + currlinedone;
363 startwrite = fieldstart + offset;
364 lencopy = bytesperline - currlinedone;
365 lencopy = lencopy > remain ? remain : lencopy;
367 if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
368 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
369 ((char *)startwrite + lencopy) -
370 ((char *)outp + buf->vb.size));
371 remain = (char *)outp + buf->vb.size - (char *)startwrite;
376 memcpy(startwrite, startread, lencopy);
381 startwrite += lencopy + bytesperline;
382 startread += lencopy;
383 if (bytesperline > remain)
386 lencopy = bytesperline;
388 if ((char *)startwrite + lencopy > (char *)outp +
390 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
391 ((char *)startwrite + lencopy) -
392 ((char *)outp + buf->vb.size));
393 lencopy = remain = (char *)outp + buf->vb.size -
399 memcpy(startwrite, startread, lencopy);
405 /* We have enough data to check for greenscreen */
406 if (outp[0] < 0x60 && outp[1440] < 0x60)
407 dev->greenscreen_detected = 1;
414 * video-buf generic routine to get the next available buffer
416 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
417 struct au0828_buffer **buf)
419 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
421 if (list_empty(&dma_q->active)) {
422 au0828_isocdbg("No active queue to serve\n");
423 dev->isoc_ctl.buf = NULL;
428 /* Get the next buffer */
429 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
430 dev->isoc_ctl.buf = *buf;
435 static void au0828_copy_vbi(struct au0828_dev *dev,
436 struct au0828_dmaqueue *dma_q,
437 struct au0828_buffer *buf,
439 unsigned char *outp, unsigned long len)
441 unsigned char *startwrite, *startread;
446 au0828_isocdbg("dev is null\n");
451 au0828_isocdbg("dma_q is null\n");
457 au0828_isocdbg("p is null\n");
461 au0828_isocdbg("outp is null\n");
465 bytesperline = dev->vbi_width;
467 if (dma_q->pos + len > buf->vb.size)
468 len = buf->vb.size - dma_q->pos;
471 startwrite = outp + (dma_q->pos / 2);
473 /* Make sure the bottom field populates the second half of the frame */
474 if (buf->top_field == 0)
475 startwrite += bytesperline * dev->vbi_height;
477 for (i = 0; i < len; i += 2)
478 startwrite[j++] = startread[i+1];
485 * video-buf generic routine to get the next available VBI buffer
487 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
488 struct au0828_buffer **buf)
490 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
493 if (list_empty(&dma_q->active)) {
494 au0828_isocdbg("No active queue to serve\n");
495 dev->isoc_ctl.vbi_buf = NULL;
500 /* Get the next buffer */
501 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
502 /* Cleans up buffer - Useful for testing for frame/URB loss */
503 outp = videobuf_to_vmalloc(&(*buf)->vb);
504 memset(outp, 0x00, (*buf)->vb.size);
506 dev->isoc_ctl.vbi_buf = *buf;
512 * Controls the isoc copy of each urb packet
514 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
516 struct au0828_buffer *buf;
517 struct au0828_buffer *vbi_buf;
518 struct au0828_dmaqueue *dma_q = urb->context;
519 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
520 unsigned char *outp = NULL;
521 unsigned char *vbioutp = NULL;
522 int i, len = 0, rc = 1;
525 unsigned int vbi_field_size;
526 unsigned int remain, lencopy;
531 if ((dev->dev_state & DEV_DISCONNECTED) ||
532 (dev->dev_state & DEV_MISCONFIGURED))
535 if (urb->status < 0) {
536 print_err_status(dev, -1, urb->status);
537 if (urb->status == -ENOENT)
541 buf = dev->isoc_ctl.buf;
543 outp = videobuf_to_vmalloc(&buf->vb);
545 vbi_buf = dev->isoc_ctl.vbi_buf;
547 vbioutp = videobuf_to_vmalloc(&vbi_buf->vb);
549 for (i = 0; i < urb->number_of_packets; i++) {
550 int status = urb->iso_frame_desc[i].status;
553 print_err_status(dev, i, status);
554 if (urb->iso_frame_desc[i].status != -EPROTO)
558 if (urb->iso_frame_desc[i].actual_length <= 0)
561 if (urb->iso_frame_desc[i].actual_length >
563 au0828_isocdbg("packet bigger than packet size");
567 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
569 len = urb->iso_frame_desc[i].actual_length - 4;
575 au0828_isocdbg("Video frame %s\n",
576 (fbyte & 0x40) ? "odd" : "even");
580 vbi_buffer_filled(dev,
583 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
587 vbioutp = videobuf_to_vmalloc(
592 buffer_filled(dev, dma_q, buf);
593 get_next_buf(dma_q, &buf);
597 outp = videobuf_to_vmalloc(&buf->vb);
599 /* As long as isoc traffic is arriving, keep
600 resetting the timer */
601 if (dev->vid_timeout_running)
602 mod_timer(&dev->vid_timeout,
603 jiffies + (HZ / 10));
604 if (dev->vbi_timeout_running)
605 mod_timer(&dev->vbi_timeout,
606 jiffies + (HZ / 10));
616 if (vbi_buf != NULL) {
618 vbi_buf->top_field = 1;
620 vbi_buf->top_field = 0;
628 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
629 if (dev->vbi_read < vbi_field_size) {
630 remain = vbi_field_size - dev->vbi_read;
637 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
642 dev->vbi_read += lencopy;
645 if (dev->vbi_read >= vbi_field_size && buf != NULL)
646 au0828_copy_video(dev, dma_q, buf, p, outp, len);
652 buffer_setup(struct videobuf_queue *vq, unsigned int *count,
655 struct au0828_fh *fh = vq->priv_data;
656 *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
659 *count = AU0828_DEF_BUF;
661 if (*count < AU0828_MIN_BUF)
662 *count = AU0828_MIN_BUF;
666 /* This is called *without* dev->slock held; please keep it that way */
667 static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
669 struct au0828_fh *fh = vq->priv_data;
670 struct au0828_dev *dev = fh->dev;
671 unsigned long flags = 0;
675 /* We used to wait for the buffer to finish here, but this didn't work
676 because, as we were keeping the state as VIDEOBUF_QUEUED,
677 videobuf_queue_cancel marked it as finished for us.
678 (Also, it could wedge forever if the hardware was misconfigured.)
680 This should be safe; by the time we get here, the buffer isn't
681 queued anymore. If we ever start marking the buffers as
682 VIDEOBUF_ACTIVE, it won't be, though.
684 spin_lock_irqsave(&dev->slock, flags);
685 if (dev->isoc_ctl.buf == buf)
686 dev->isoc_ctl.buf = NULL;
687 spin_unlock_irqrestore(&dev->slock, flags);
689 videobuf_vmalloc_free(&buf->vb);
690 buf->vb.state = VIDEOBUF_NEEDS_INIT;
694 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
695 enum v4l2_field field)
697 struct au0828_fh *fh = vq->priv_data;
698 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
699 struct au0828_dev *dev = fh->dev;
700 int rc = 0, urb_init = 0;
702 buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
704 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
707 buf->vb.width = dev->width;
708 buf->vb.height = dev->height;
709 buf->vb.field = field;
711 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
712 rc = videobuf_iolock(vq, &buf->vb, NULL);
714 printk(KERN_INFO "videobuf_iolock failed\n");
719 if (!dev->isoc_ctl.num_bufs)
723 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
724 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
727 printk(KERN_INFO "au0828_init_isoc failed\n");
732 buf->vb.state = VIDEOBUF_PREPARED;
736 free_buffer(vq, buf);
741 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
743 struct au0828_buffer *buf = container_of(vb,
744 struct au0828_buffer,
746 struct au0828_fh *fh = vq->priv_data;
747 struct au0828_dev *dev = fh->dev;
748 struct au0828_dmaqueue *vidq = &dev->vidq;
750 buf->vb.state = VIDEOBUF_QUEUED;
751 list_add_tail(&buf->vb.queue, &vidq->active);
754 static void buffer_release(struct videobuf_queue *vq,
755 struct videobuf_buffer *vb)
757 struct au0828_buffer *buf = container_of(vb,
758 struct au0828_buffer,
761 free_buffer(vq, buf);
764 static struct videobuf_queue_ops au0828_video_qops = {
765 .buf_setup = buffer_setup,
766 .buf_prepare = buffer_prepare,
767 .buf_queue = buffer_queue,
768 .buf_release = buffer_release,
771 /* ------------------------------------------------------------------
773 ------------------------------------------------------------------*/
775 static int au0828_i2s_init(struct au0828_dev *dev)
777 /* Enable i2s mode */
778 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
783 * Auvitek au0828 analog stream enable
784 * Please set interface0 to AS5 before enable the stream
786 int au0828_analog_stream_enable(struct au0828_dev *d)
788 dprintk(1, "au0828_analog_stream_enable called\n");
789 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
790 au0828_writereg(d, 0x106, 0x00);
792 au0828_writereg(d, 0x110, 0x00);
793 au0828_writereg(d, 0x111, 0x00);
794 au0828_writereg(d, 0x114, 0xa0);
795 au0828_writereg(d, 0x115, 0x05);
797 au0828_writereg(d, 0x112, 0x00);
798 au0828_writereg(d, 0x113, 0x00);
799 au0828_writereg(d, 0x116, 0xf2);
800 au0828_writereg(d, 0x117, 0x00);
801 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
806 int au0828_analog_stream_disable(struct au0828_dev *d)
808 dprintk(1, "au0828_analog_stream_disable called\n");
809 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
813 void au0828_analog_stream_reset(struct au0828_dev *dev)
815 dprintk(1, "au0828_analog_stream_reset called\n");
816 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
818 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
822 * Some operations needs to stop current streaming
824 static int au0828_stream_interrupt(struct au0828_dev *dev)
828 dev->stream_state = STREAM_INTERRUPT;
829 if (dev->dev_state == DEV_DISCONNECTED)
832 dev->dev_state = DEV_MISCONFIGURED;
833 dprintk(1, "%s device is misconfigured!\n", __func__);
840 * au0828_release_resources
841 * unregister v4l2 devices
843 void au0828_analog_unregister(struct au0828_dev *dev)
845 dprintk(1, "au0828_release_resources called\n");
846 mutex_lock(&au0828_sysfs_lock);
849 video_unregister_device(dev->vdev);
851 video_unregister_device(dev->vbi_dev);
853 mutex_unlock(&au0828_sysfs_lock);
857 /* Usage lock check functions */
858 static int res_get(struct au0828_fh *fh, unsigned int bit)
860 struct au0828_dev *dev = fh->dev;
862 if (fh->resources & bit)
863 /* have it already allocated */
867 if (dev->resources & bit) {
868 /* no, someone else uses it */
871 /* it's free, grab it */
872 fh->resources |= bit;
873 dev->resources |= bit;
874 dprintk(1, "res: get %d\n", bit);
879 static int res_check(struct au0828_fh *fh, unsigned int bit)
881 return fh->resources & bit;
884 static int res_locked(struct au0828_dev *dev, unsigned int bit)
886 return dev->resources & bit;
889 static void res_free(struct au0828_fh *fh, unsigned int bits)
891 struct au0828_dev *dev = fh->dev;
893 BUG_ON((fh->resources & bits) != bits);
895 fh->resources &= ~bits;
896 dev->resources &= ~bits;
897 dprintk(1, "res: put %d\n", bits);
900 static int get_ressource(struct au0828_fh *fh)
903 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
904 return AU0828_RESOURCE_VIDEO;
905 case V4L2_BUF_TYPE_VBI_CAPTURE:
906 return AU0828_RESOURCE_VBI;
913 /* This function ensures that video frames continue to be delivered even if
914 the ITU-656 input isn't receiving any data (thereby preventing applications
915 such as tvtime from hanging) */
916 void au0828_vid_buffer_timeout(unsigned long data)
918 struct au0828_dev *dev = (struct au0828_dev *) data;
919 struct au0828_dmaqueue *dma_q = &dev->vidq;
920 struct au0828_buffer *buf;
921 unsigned char *vid_data;
922 unsigned long flags = 0;
924 spin_lock_irqsave(&dev->slock, flags);
926 buf = dev->isoc_ctl.buf;
928 vid_data = videobuf_to_vmalloc(&buf->vb);
929 memset(vid_data, 0x00, buf->vb.size); /* Blank green frame */
930 buffer_filled(dev, dma_q, buf);
932 get_next_buf(dma_q, &buf);
934 if (dev->vid_timeout_running == 1)
935 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
937 spin_unlock_irqrestore(&dev->slock, flags);
940 void au0828_vbi_buffer_timeout(unsigned long data)
942 struct au0828_dev *dev = (struct au0828_dev *) data;
943 struct au0828_dmaqueue *dma_q = &dev->vbiq;
944 struct au0828_buffer *buf;
945 unsigned char *vbi_data;
946 unsigned long flags = 0;
948 spin_lock_irqsave(&dev->slock, flags);
950 buf = dev->isoc_ctl.vbi_buf;
952 vbi_data = videobuf_to_vmalloc(&buf->vb);
953 memset(vbi_data, 0x00, buf->vb.size);
954 vbi_buffer_filled(dev, dma_q, buf);
956 vbi_get_next_buf(dma_q, &buf);
958 if (dev->vbi_timeout_running == 1)
959 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
960 spin_unlock_irqrestore(&dev->slock, flags);
964 static int au0828_v4l2_open(struct file *filp)
967 struct video_device *vdev = video_devdata(filp);
968 struct au0828_dev *dev = video_drvdata(filp);
969 struct au0828_fh *fh;
972 switch (vdev->vfl_type) {
973 case VFL_TYPE_GRABBER:
974 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
977 type = V4L2_BUF_TYPE_VBI_CAPTURE;
983 fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
985 dprintk(1, "Failed allocate au0828_fh struct!\n");
991 filp->private_data = fh;
993 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
994 /* set au0828 interface0 to AS5 here again */
995 ret = usb_set_interface(dev->usbdev, 0, 5);
997 printk(KERN_INFO "Au0828 can't set alternate to 5!\n");
1000 dev->width = NTSC_STD_W;
1001 dev->height = NTSC_STD_H;
1002 dev->frame_size = dev->width * dev->height * 2;
1003 dev->field_size = dev->width * dev->height;
1004 dev->bytesperline = dev->width * 2;
1006 au0828_analog_stream_enable(dev);
1007 au0828_analog_stream_reset(dev);
1009 /* If we were doing ac97 instead of i2s, it would go here...*/
1010 au0828_i2s_init(dev);
1012 dev->stream_state = STREAM_OFF;
1013 dev->dev_state |= DEV_INITIALIZED;
1018 videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
1020 V4L2_BUF_TYPE_VIDEO_CAPTURE,
1021 V4L2_FIELD_INTERLACED,
1022 sizeof(struct au0828_buffer), fh,
1026 dev->vbi_width = 720;
1027 dev->vbi_height = 1;
1028 videobuf_queue_vmalloc_init(&fh->vb_vbiq, &au0828_vbi_qops,
1030 V4L2_BUF_TYPE_VBI_CAPTURE,
1032 sizeof(struct au0828_buffer), fh,
1037 static int au0828_v4l2_close(struct file *filp)
1040 struct au0828_fh *fh = filp->private_data;
1041 struct au0828_dev *dev = fh->dev;
1043 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
1044 /* Cancel timeout thread in case they didn't call streamoff */
1045 dev->vid_timeout_running = 0;
1046 del_timer_sync(&dev->vid_timeout);
1048 videobuf_stop(&fh->vb_vidq);
1049 res_free(fh, AU0828_RESOURCE_VIDEO);
1052 if (res_check(fh, AU0828_RESOURCE_VBI)) {
1053 /* Cancel timeout thread in case they didn't call streamoff */
1054 dev->vbi_timeout_running = 0;
1055 del_timer_sync(&dev->vbi_timeout);
1057 videobuf_stop(&fh->vb_vbiq);
1058 res_free(fh, AU0828_RESOURCE_VBI);
1061 if (dev->users == 1) {
1062 if (dev->dev_state & DEV_DISCONNECTED) {
1063 au0828_analog_unregister(dev);
1068 au0828_analog_stream_disable(dev);
1070 au0828_uninit_isoc(dev);
1072 /* Save some power by putting tuner to sleep */
1073 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1075 /* When close the device, set the usb intf0 into alt0 to free
1077 ret = usb_set_interface(dev->usbdev, 0, 0);
1079 printk(KERN_INFO "Au0828 can't set alternate to 0!\n");
1082 videobuf_mmap_free(&fh->vb_vidq);
1083 videobuf_mmap_free(&fh->vb_vbiq);
1086 wake_up_interruptible_nr(&dev->open, 1);
1090 static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
1091 size_t count, loff_t *pos)
1093 struct au0828_fh *fh = filp->private_data;
1094 struct au0828_dev *dev = fh->dev;
1097 rc = check_dev(dev);
1101 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1102 if (res_locked(dev, AU0828_RESOURCE_VIDEO))
1105 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1106 filp->f_flags & O_NONBLOCK);
1109 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1110 if (!res_get(fh, AU0828_RESOURCE_VBI))
1113 if (dev->vbi_timeout_running == 0) {
1114 /* Handle case where caller tries to read without
1115 calling streamon first */
1116 dev->vbi_timeout_running = 1;
1117 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1120 return videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
1121 filp->f_flags & O_NONBLOCK);
1127 static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
1129 struct au0828_fh *fh = filp->private_data;
1130 struct au0828_dev *dev = fh->dev;
1133 rc = check_dev(dev);
1137 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1138 if (!res_get(fh, AU0828_RESOURCE_VIDEO))
1140 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1141 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1142 if (!res_get(fh, AU0828_RESOURCE_VBI))
1144 return videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
1150 static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
1152 struct au0828_fh *fh = filp->private_data;
1153 struct au0828_dev *dev = fh->dev;
1156 rc = check_dev(dev);
1160 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1161 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1162 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1163 rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
1168 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1169 struct v4l2_format *format)
1172 int width = format->fmt.pix.width;
1173 int height = format->fmt.pix.height;
1175 if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1178 /* If they are demanding a format other than the one we support,
1179 bail out (tvtime asks for UYVY and then retries with YUYV) */
1180 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1183 /* format->fmt.pix.width only support 720 and height 480 */
1189 format->fmt.pix.width = width;
1190 format->fmt.pix.height = height;
1191 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1192 format->fmt.pix.bytesperline = width * 2;
1193 format->fmt.pix.sizeimage = width * height * 2;
1194 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1195 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1197 if (cmd == VIDIOC_TRY_FMT)
1200 /* maybe set new image format, driver current only support 720*480 */
1202 dev->height = height;
1203 dev->frame_size = width * height * 2;
1204 dev->field_size = width * height;
1205 dev->bytesperline = width * 2;
1207 if (dev->stream_state == STREAM_ON) {
1208 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1209 ret = au0828_stream_interrupt(dev);
1211 dprintk(1, "error interrupting video stream!\n");
1216 /* set au0828 interface0 to AS5 here again */
1217 ret = usb_set_interface(dev->usbdev, 0, 5);
1219 printk(KERN_INFO "Au0828 can't set alt setting to 5!\n");
1223 au0828_analog_stream_enable(dev);
1229 static int vidioc_queryctrl(struct file *file, void *priv,
1230 struct v4l2_queryctrl *qc)
1232 struct au0828_fh *fh = priv;
1233 struct au0828_dev *dev = fh->dev;
1234 v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc);
1241 static int vidioc_querycap(struct file *file, void *priv,
1242 struct v4l2_capability *cap)
1244 struct au0828_fh *fh = priv;
1245 struct au0828_dev *dev = fh->dev;
1247 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1248 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1249 strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info));
1251 /*set the device capabilities */
1252 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
1253 V4L2_CAP_VBI_CAPTURE |
1255 V4L2_CAP_READWRITE |
1256 V4L2_CAP_STREAMING |
1261 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1262 struct v4l2_fmtdesc *f)
1267 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1268 strcpy(f->description, "Packed YUV2");
1271 f->pixelformat = V4L2_PIX_FMT_UYVY;
1276 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1277 struct v4l2_format *f)
1279 struct au0828_fh *fh = priv;
1280 struct au0828_dev *dev = fh->dev;
1282 f->fmt.pix.width = dev->width;
1283 f->fmt.pix.height = dev->height;
1284 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1285 f->fmt.pix.bytesperline = dev->bytesperline;
1286 f->fmt.pix.sizeimage = dev->frame_size;
1287 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1288 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1292 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1293 struct v4l2_format *f)
1295 struct au0828_fh *fh = priv;
1296 struct au0828_dev *dev = fh->dev;
1298 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1301 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1302 struct v4l2_format *f)
1304 struct au0828_fh *fh = priv;
1305 struct au0828_dev *dev = fh->dev;
1308 rc = check_dev(dev);
1312 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1313 printk(KERN_INFO "%s queue busy\n", __func__);
1318 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1323 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
1325 struct au0828_fh *fh = priv;
1326 struct au0828_dev *dev = fh->dev;
1328 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1329 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1331 /* FIXME: when we support something other than NTSC, we are going to
1332 have to make the au0828 bridge adjust the size of its capture
1333 buffer, which is currently hardcoded at 720x480 */
1335 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, *norm);
1336 dev->std_set_in_tuner_core = 1;
1338 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1339 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1344 static int vidioc_enum_input(struct file *file, void *priv,
1345 struct v4l2_input *input)
1347 struct au0828_fh *fh = priv;
1348 struct au0828_dev *dev = fh->dev;
1351 static const char *inames[] = {
1352 [AU0828_VMUX_UNDEFINED] = "Undefined",
1353 [AU0828_VMUX_COMPOSITE] = "Composite",
1354 [AU0828_VMUX_SVIDEO] = "S-Video",
1355 [AU0828_VMUX_CABLE] = "Cable TV",
1356 [AU0828_VMUX_TELEVISION] = "Television",
1357 [AU0828_VMUX_DVB] = "DVB",
1358 [AU0828_VMUX_DEBUG] = "tv debug"
1363 if (tmp >= AU0828_MAX_INPUT)
1365 if (AUVI_INPUT(tmp).type == 0)
1369 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1370 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1371 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE))
1372 input->type |= V4L2_INPUT_TYPE_TUNER;
1374 input->type |= V4L2_INPUT_TYPE_CAMERA;
1376 input->std = dev->vdev->tvnorms;
1381 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1383 struct au0828_fh *fh = priv;
1384 struct au0828_dev *dev = fh->dev;
1385 *i = dev->ctrl_input;
1389 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1391 struct au0828_fh *fh = priv;
1392 struct au0828_dev *dev = fh->dev;
1395 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1397 if (index >= AU0828_MAX_INPUT)
1399 if (AUVI_INPUT(index).type == 0)
1401 dev->ctrl_input = index;
1403 switch (AUVI_INPUT(index).type) {
1404 case AU0828_VMUX_SVIDEO:
1405 dev->input_type = AU0828_VMUX_SVIDEO;
1407 case AU0828_VMUX_COMPOSITE:
1408 dev->input_type = AU0828_VMUX_COMPOSITE;
1410 case AU0828_VMUX_TELEVISION:
1411 dev->input_type = AU0828_VMUX_TELEVISION;
1414 dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n",
1415 AUVI_INPUT(index).type);
1419 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1420 AUVI_INPUT(index).vmux, 0, 0);
1422 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1424 if (AUVI_INPUT(i).audio_setup == NULL)
1432 (AUVI_INPUT(i).audio_setup)(dev, enable);
1434 /* Make sure we leave it turned on if some
1435 other input is routed to this callback */
1436 if ((AUVI_INPUT(i).audio_setup) !=
1437 ((AUVI_INPUT(index).audio_setup))) {
1438 (AUVI_INPUT(i).audio_setup)(dev, enable);
1443 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1444 AUVI_INPUT(index).amux, 0, 0);
1448 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1450 struct au0828_fh *fh = priv;
1451 struct au0828_dev *dev = fh->dev;
1452 unsigned int index = a->index;
1457 index = dev->ctrl_ainput;
1459 strcpy(a->name, "Television");
1461 strcpy(a->name, "Line in");
1463 a->capability = V4L2_AUDCAP_STEREO;
1468 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1470 struct au0828_fh *fh = priv;
1471 struct au0828_dev *dev = fh->dev;
1472 if (a->index != dev->ctrl_ainput)
1477 static int vidioc_g_ctrl(struct file *file, void *priv,
1478 struct v4l2_control *ctrl)
1480 struct au0828_fh *fh = priv;
1481 struct au0828_dev *dev = fh->dev;
1483 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl);
1488 static int vidioc_s_ctrl(struct file *file, void *priv,
1489 struct v4l2_control *ctrl)
1491 struct au0828_fh *fh = priv;
1492 struct au0828_dev *dev = fh->dev;
1493 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl);
1497 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1499 struct au0828_fh *fh = priv;
1500 struct au0828_dev *dev = fh->dev;
1505 strcpy(t->name, "Auvitek tuner");
1506 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1510 static int vidioc_s_tuner(struct file *file, void *priv,
1511 struct v4l2_tuner *t)
1513 struct au0828_fh *fh = priv;
1514 struct au0828_dev *dev = fh->dev;
1519 t->type = V4L2_TUNER_ANALOG_TV;
1521 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1522 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1524 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1526 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1527 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1529 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1536 static int vidioc_g_frequency(struct file *file, void *priv,
1537 struct v4l2_frequency *freq)
1539 struct au0828_fh *fh = priv;
1540 struct au0828_dev *dev = fh->dev;
1542 freq->type = V4L2_TUNER_ANALOG_TV;
1543 freq->frequency = dev->ctrl_freq;
1547 static int vidioc_s_frequency(struct file *file, void *priv,
1548 struct v4l2_frequency *freq)
1550 struct au0828_fh *fh = priv;
1551 struct au0828_dev *dev = fh->dev;
1553 if (freq->tuner != 0)
1555 if (freq->type != V4L2_TUNER_ANALOG_TV)
1558 dev->ctrl_freq = freq->frequency;
1560 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1561 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1563 if (dev->std_set_in_tuner_core == 0) {
1564 /* If we've never sent the standard in tuner core, do so now. We
1565 don't do this at device probe because we don't want to incur
1566 the cost of a firmware load */
1567 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std,
1568 dev->vdev->tvnorms);
1569 dev->std_set_in_tuner_core = 1;
1572 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1574 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1575 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1577 au0828_analog_stream_reset(dev);
1583 /* RAW VBI ioctls */
1585 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1586 struct v4l2_format *format)
1588 struct au0828_fh *fh = priv;
1589 struct au0828_dev *dev = fh->dev;
1591 format->fmt.vbi.samples_per_line = dev->vbi_width;
1592 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1593 format->fmt.vbi.offset = 0;
1594 format->fmt.vbi.flags = 0;
1595 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1597 format->fmt.vbi.count[0] = dev->vbi_height;
1598 format->fmt.vbi.count[1] = dev->vbi_height;
1599 format->fmt.vbi.start[0] = 21;
1600 format->fmt.vbi.start[1] = 284;
1605 static int vidioc_g_chip_ident(struct file *file, void *priv,
1606 struct v4l2_dbg_chip_ident *chip)
1608 struct au0828_fh *fh = priv;
1609 struct au0828_dev *dev = fh->dev;
1610 chip->ident = V4L2_IDENT_NONE;
1613 if (v4l2_chip_match_host(&chip->match)) {
1614 chip->ident = V4L2_IDENT_AU0828;
1618 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
1619 if (chip->ident == V4L2_IDENT_NONE)
1625 static int vidioc_cropcap(struct file *file, void *priv,
1626 struct v4l2_cropcap *cc)
1628 struct au0828_fh *fh = priv;
1629 struct au0828_dev *dev = fh->dev;
1631 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1634 cc->bounds.left = 0;
1636 cc->bounds.width = dev->width;
1637 cc->bounds.height = dev->height;
1639 cc->defrect = cc->bounds;
1641 cc->pixelaspect.numerator = 54;
1642 cc->pixelaspect.denominator = 59;
1647 static int vidioc_streamon(struct file *file, void *priv,
1648 enum v4l2_buf_type type)
1650 struct au0828_fh *fh = priv;
1651 struct au0828_dev *dev = fh->dev;
1654 rc = check_dev(dev);
1658 if (unlikely(type != fh->type))
1661 dprintk(1, "vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
1662 fh, type, fh->resources, dev->resources);
1664 if (unlikely(!res_get(fh, get_ressource(fh))))
1667 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1668 au0828_analog_stream_enable(dev);
1669 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
1672 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1673 rc = videobuf_streamon(&fh->vb_vidq);
1674 dev->vid_timeout_running = 1;
1675 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1676 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1677 rc = videobuf_streamon(&fh->vb_vbiq);
1678 dev->vbi_timeout_running = 1;
1679 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1685 static int vidioc_streamoff(struct file *file, void *priv,
1686 enum v4l2_buf_type type)
1688 struct au0828_fh *fh = priv;
1689 struct au0828_dev *dev = fh->dev;
1693 rc = check_dev(dev);
1697 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1698 fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
1700 if (type != fh->type)
1703 dprintk(1, "vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
1704 fh, type, fh->resources, dev->resources);
1706 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1707 dev->vid_timeout_running = 0;
1708 del_timer_sync(&dev->vid_timeout);
1710 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
1711 rc = au0828_stream_interrupt(dev);
1715 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1716 if (AUVI_INPUT(i).audio_setup == NULL)
1718 (AUVI_INPUT(i).audio_setup)(dev, 0);
1721 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
1722 videobuf_streamoff(&fh->vb_vidq);
1723 res_free(fh, AU0828_RESOURCE_VIDEO);
1725 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1726 dev->vbi_timeout_running = 0;
1727 del_timer_sync(&dev->vbi_timeout);
1729 if (res_check(fh, AU0828_RESOURCE_VBI)) {
1730 videobuf_streamoff(&fh->vb_vbiq);
1731 res_free(fh, AU0828_RESOURCE_VBI);
1738 #ifdef CONFIG_VIDEO_ADV_DEBUG
1739 static int vidioc_g_register(struct file *file, void *priv,
1740 struct v4l2_dbg_register *reg)
1742 struct au0828_fh *fh = priv;
1743 struct au0828_dev *dev = fh->dev;
1745 switch (reg->match.type) {
1746 case V4L2_CHIP_MATCH_I2C_DRIVER:
1747 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
1750 if (!v4l2_chip_match_host(®->match))
1754 reg->val = au0828_read(dev, reg->reg);
1758 static int vidioc_s_register(struct file *file, void *priv,
1759 struct v4l2_dbg_register *reg)
1761 struct au0828_fh *fh = priv;
1762 struct au0828_dev *dev = fh->dev;
1764 switch (reg->match.type) {
1765 case V4L2_CHIP_MATCH_I2C_DRIVER:
1766 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
1769 if (!v4l2_chip_match_host(®->match))
1772 return au0828_writereg(dev, reg->reg, reg->val);
1776 static int vidioc_reqbufs(struct file *file, void *priv,
1777 struct v4l2_requestbuffers *rb)
1779 struct au0828_fh *fh = priv;
1780 struct au0828_dev *dev = fh->dev;
1783 rc = check_dev(dev);
1787 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1788 rc = videobuf_reqbufs(&fh->vb_vidq, rb);
1789 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1790 rc = videobuf_reqbufs(&fh->vb_vbiq, rb);
1795 static int vidioc_querybuf(struct file *file, void *priv,
1796 struct v4l2_buffer *b)
1798 struct au0828_fh *fh = priv;
1799 struct au0828_dev *dev = fh->dev;
1802 rc = check_dev(dev);
1806 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1807 rc = videobuf_querybuf(&fh->vb_vidq, b);
1808 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1809 rc = videobuf_querybuf(&fh->vb_vbiq, b);
1814 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1816 struct au0828_fh *fh = priv;
1817 struct au0828_dev *dev = fh->dev;
1820 rc = check_dev(dev);
1824 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1825 rc = videobuf_qbuf(&fh->vb_vidq, b);
1826 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1827 rc = videobuf_qbuf(&fh->vb_vbiq, b);
1832 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1834 struct au0828_fh *fh = priv;
1835 struct au0828_dev *dev = fh->dev;
1838 rc = check_dev(dev);
1842 /* Workaround for a bug in the au0828 hardware design that sometimes
1843 results in the colorspace being inverted */
1844 if (dev->greenscreen_detected == 1) {
1845 dprintk(1, "Detected green frame. Resetting stream...\n");
1846 au0828_analog_stream_reset(dev);
1847 dev->greenscreen_detected = 0;
1850 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1851 rc = videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1852 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1853 rc = videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & O_NONBLOCK);
1858 static struct v4l2_file_operations au0828_v4l_fops = {
1859 .owner = THIS_MODULE,
1860 .open = au0828_v4l2_open,
1861 .release = au0828_v4l2_close,
1862 .read = au0828_v4l2_read,
1863 .poll = au0828_v4l2_poll,
1864 .mmap = au0828_v4l2_mmap,
1865 .unlocked_ioctl = video_ioctl2,
1868 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1869 .vidioc_querycap = vidioc_querycap,
1870 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1871 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1872 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1873 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1874 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1875 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1876 .vidioc_g_audio = vidioc_g_audio,
1877 .vidioc_s_audio = vidioc_s_audio,
1878 .vidioc_cropcap = vidioc_cropcap,
1879 .vidioc_reqbufs = vidioc_reqbufs,
1880 .vidioc_querybuf = vidioc_querybuf,
1881 .vidioc_qbuf = vidioc_qbuf,
1882 .vidioc_dqbuf = vidioc_dqbuf,
1883 .vidioc_s_std = vidioc_s_std,
1884 .vidioc_enum_input = vidioc_enum_input,
1885 .vidioc_g_input = vidioc_g_input,
1886 .vidioc_s_input = vidioc_s_input,
1887 .vidioc_queryctrl = vidioc_queryctrl,
1888 .vidioc_g_ctrl = vidioc_g_ctrl,
1889 .vidioc_s_ctrl = vidioc_s_ctrl,
1890 .vidioc_streamon = vidioc_streamon,
1891 .vidioc_streamoff = vidioc_streamoff,
1892 .vidioc_g_tuner = vidioc_g_tuner,
1893 .vidioc_s_tuner = vidioc_s_tuner,
1894 .vidioc_g_frequency = vidioc_g_frequency,
1895 .vidioc_s_frequency = vidioc_s_frequency,
1896 #ifdef CONFIG_VIDEO_ADV_DEBUG
1897 .vidioc_g_register = vidioc_g_register,
1898 .vidioc_s_register = vidioc_s_register,
1900 .vidioc_g_chip_ident = vidioc_g_chip_ident,
1903 static const struct video_device au0828_video_template = {
1904 .fops = &au0828_v4l_fops,
1905 .release = video_device_release,
1906 .ioctl_ops = &video_ioctl_ops,
1907 .tvnorms = V4L2_STD_NTSC_M,
1908 .current_norm = V4L2_STD_NTSC_M,
1911 /**************************************************************************/
1913 int au0828_analog_register(struct au0828_dev *dev,
1914 struct usb_interface *interface)
1916 int retval = -ENOMEM;
1917 struct usb_host_interface *iface_desc;
1918 struct usb_endpoint_descriptor *endpoint;
1921 dprintk(1, "au0828_analog_register called!\n");
1923 /* set au0828 usb interface0 to as5 */
1924 retval = usb_set_interface(dev->usbdev,
1925 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1927 printk(KERN_INFO "Failure setting usb interface0 to as5\n");
1931 /* Figure out which endpoint has the isoc interface */
1932 iface_desc = interface->cur_altsetting;
1933 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1934 endpoint = &iface_desc->endpoint[i].desc;
1935 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1937 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1938 == USB_ENDPOINT_XFER_ISOC)) {
1940 /* we find our isoc in endpoint */
1941 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1942 dev->max_pkt_size = (tmp & 0x07ff) *
1943 (((tmp & 0x1800) >> 11) + 1);
1944 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1947 if (!(dev->isoc_in_endpointaddr)) {
1948 printk(KERN_INFO "Could not locate isoc endpoint\n");
1953 init_waitqueue_head(&dev->open);
1954 spin_lock_init(&dev->slock);
1956 /* init video dma queues */
1957 INIT_LIST_HEAD(&dev->vidq.active);
1958 INIT_LIST_HEAD(&dev->vidq.queued);
1959 INIT_LIST_HEAD(&dev->vbiq.active);
1960 INIT_LIST_HEAD(&dev->vbiq.queued);
1962 dev->vid_timeout.function = au0828_vid_buffer_timeout;
1963 dev->vid_timeout.data = (unsigned long) dev;
1964 init_timer(&dev->vid_timeout);
1966 dev->vbi_timeout.function = au0828_vbi_buffer_timeout;
1967 dev->vbi_timeout.data = (unsigned long) dev;
1968 init_timer(&dev->vbi_timeout);
1970 dev->width = NTSC_STD_W;
1971 dev->height = NTSC_STD_H;
1972 dev->field_size = dev->width * dev->height;
1973 dev->frame_size = dev->field_size << 1;
1974 dev->bytesperline = dev->width << 1;
1975 dev->ctrl_ainput = 0;
1977 /* allocate and fill v4l2 video struct */
1978 dev->vdev = video_device_alloc();
1979 if (NULL == dev->vdev) {
1980 dprintk(1, "Can't allocate video_device.\n");
1984 /* allocate the VBI struct */
1985 dev->vbi_dev = video_device_alloc();
1986 if (NULL == dev->vbi_dev) {
1987 dprintk(1, "Can't allocate vbi_device.\n");
1992 /* Fill the video capture device struct */
1993 *dev->vdev = au0828_video_template;
1994 dev->vdev->parent = &dev->usbdev->dev;
1995 dev->vdev->lock = &dev->lock;
1996 strcpy(dev->vdev->name, "au0828a video");
1998 /* Setup the VBI device */
1999 *dev->vbi_dev = au0828_video_template;
2000 dev->vbi_dev->parent = &dev->usbdev->dev;
2001 dev->vbi_dev->lock = &dev->lock;
2002 strcpy(dev->vbi_dev->name, "au0828a vbi");
2004 /* Register the v4l2 device */
2005 video_set_drvdata(dev->vdev, dev);
2006 retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
2008 dprintk(1, "unable to register video device (error = %d).\n",
2014 /* Register the vbi device */
2015 video_set_drvdata(dev->vbi_dev, dev);
2016 retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
2018 dprintk(1, "unable to register vbi device (error = %d).\n",
2024 dprintk(1, "%s completed!\n", __func__);
2029 video_device_release(dev->vbi_dev);
2031 video_device_release(dev->vdev);