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 * The hardware scaler supported is unimplemented
26 * AC97 audio support is unimplemented (only i2s audio mode)
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/init.h>
35 #include <linux/device.h>
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-event.h>
39 #include <media/tuner.h>
40 #include "au0828-reg.h"
42 static DEFINE_MUTEX(au0828_sysfs_lock);
44 /* ------------------------------------------------------------------
46 ------------------------------------------------------------------*/
48 static unsigned int isoc_debug;
49 module_param(isoc_debug, int, 0644);
50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
52 #define au0828_isocdbg(fmt, arg...) \
55 pr_info("au0828 %s :"fmt, \
60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
62 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
63 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
66 static inline void print_err_status(struct au0828_dev *dev,
67 int packet, int status)
69 char *errmsg = "Unknown";
73 errmsg = "unlinked synchronuously";
76 errmsg = "unlinked asynchronuously";
79 errmsg = "Buffer error (overrun)";
82 errmsg = "Stalled (device not responding)";
85 errmsg = "Babble (bad cable?)";
88 errmsg = "Bit-stuff error (bad cable?)";
91 errmsg = "CRC/Timeout (could be anything)";
94 errmsg = "Device does not respond";
98 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
100 au0828_isocdbg("URB packet %d, status %d [%s].\n",
101 packet, status, errmsg);
105 static int check_dev(struct au0828_dev *dev)
107 if (dev->dev_state & DEV_DISCONNECTED) {
108 pr_info("v4l2 ioctl: device not present\n");
112 if (dev->dev_state & DEV_MISCONFIGURED) {
113 pr_info("v4l2 ioctl: device is misconfigured; "
114 "close and open it again\n");
121 * IRQ callback, called by URB callback
123 static void au0828_irq_callback(struct urb *urb)
125 struct au0828_dmaqueue *dma_q = urb->context;
126 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
127 unsigned long flags = 0;
130 switch (urb->status) {
131 case 0: /* success */
132 case -ETIMEDOUT: /* NAK */
134 case -ECONNRESET: /* kill */
137 au0828_isocdbg("au0828_irq_callback called: status kill\n");
139 default: /* unknown error */
140 au0828_isocdbg("urb completition error %d.\n", urb->status);
144 /* Copy data from URB */
145 spin_lock_irqsave(&dev->slock, flags);
146 dev->isoc_ctl.isoc_copy(dev, urb);
147 spin_unlock_irqrestore(&dev->slock, flags);
149 /* Reset urb buffers */
150 for (i = 0; i < urb->number_of_packets; i++) {
151 urb->iso_frame_desc[i].status = 0;
152 urb->iso_frame_desc[i].actual_length = 0;
156 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
158 au0828_isocdbg("urb resubmit failed (error=%i)\n",
161 dev->stream_state = STREAM_ON;
165 * Stop and Deallocate URBs
167 static void au0828_uninit_isoc(struct au0828_dev *dev)
172 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
174 dev->isoc_ctl.nfields = -1;
175 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
176 urb = dev->isoc_ctl.urb[i];
178 if (!irqs_disabled())
183 if (dev->isoc_ctl.transfer_buffer[i]) {
184 usb_free_coherent(dev->usbdev,
185 urb->transfer_buffer_length,
186 dev->isoc_ctl.transfer_buffer[i],
190 dev->isoc_ctl.urb[i] = NULL;
192 dev->isoc_ctl.transfer_buffer[i] = NULL;
195 kfree(dev->isoc_ctl.urb);
196 kfree(dev->isoc_ctl.transfer_buffer);
198 dev->isoc_ctl.urb = NULL;
199 dev->isoc_ctl.transfer_buffer = NULL;
200 dev->isoc_ctl.num_bufs = 0;
202 dev->stream_state = STREAM_OFF;
206 * Allocate URBs and start IRQ
208 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
209 int num_bufs, int max_pkt_size,
210 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
212 struct au0828_dmaqueue *dma_q = &dev->vidq;
219 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
221 dev->isoc_ctl.isoc_copy = isoc_copy;
222 dev->isoc_ctl.num_bufs = num_bufs;
224 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
225 if (!dev->isoc_ctl.urb) {
226 au0828_isocdbg("cannot alloc memory for usb buffers\n");
230 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
232 if (!dev->isoc_ctl.transfer_buffer) {
233 au0828_isocdbg("cannot allocate memory for usb transfer\n");
234 kfree(dev->isoc_ctl.urb);
238 dev->isoc_ctl.max_pkt_size = max_pkt_size;
239 dev->isoc_ctl.buf = NULL;
241 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
243 /* allocate urbs and transfer buffers */
244 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
245 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
247 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
248 au0828_uninit_isoc(dev);
251 dev->isoc_ctl.urb[i] = urb;
253 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
254 sb_size, GFP_KERNEL, &urb->transfer_dma);
255 if (!dev->isoc_ctl.transfer_buffer[i]) {
256 printk("unable to allocate %i bytes for transfer"
259 in_interrupt() ? " while in int" : "");
260 au0828_uninit_isoc(dev);
263 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
265 pipe = usb_rcvisocpipe(dev->usbdev,
266 dev->isoc_in_endpointaddr),
268 usb_fill_int_urb(urb, dev->usbdev, pipe,
269 dev->isoc_ctl.transfer_buffer[i], sb_size,
270 au0828_irq_callback, dma_q, 1);
272 urb->number_of_packets = max_packets;
273 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
276 for (j = 0; j < max_packets; j++) {
277 urb->iso_frame_desc[j].offset = k;
278 urb->iso_frame_desc[j].length =
279 dev->isoc_ctl.max_pkt_size;
280 k += dev->isoc_ctl.max_pkt_size;
284 /* submit urbs and enables IRQ */
285 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
286 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
288 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
290 au0828_uninit_isoc(dev);
299 * Announces that a buffer were filled and request the next
301 static inline void buffer_filled(struct au0828_dev *dev,
302 struct au0828_dmaqueue *dma_q,
303 struct au0828_buffer *buf)
305 struct vb2_v4l2_buffer *vb = &buf->vb;
306 struct vb2_queue *q = vb->vb2_buf.vb2_queue;
308 /* Advice that buffer was filled */
309 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
311 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
312 vb->sequence = dev->frame_count++;
314 vb->sequence = dev->vbi_frame_count++;
316 vb->field = V4L2_FIELD_INTERLACED;
317 v4l2_get_timestamp(&vb->timestamp);
318 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
322 * Identify the buffer header type and properly handles
324 static void au0828_copy_video(struct au0828_dev *dev,
325 struct au0828_dmaqueue *dma_q,
326 struct au0828_buffer *buf,
328 unsigned char *outp, unsigned long len)
330 void *fieldstart, *startwrite, *startread;
331 int linesdone, currlinedone, offset, lencopy, remain;
332 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
337 if (dma_q->pos + len > buf->length)
338 len = buf->length - dma_q->pos;
343 /* Interlaces frame */
347 fieldstart = outp + bytesperline;
349 linesdone = dma_q->pos / bytesperline;
350 currlinedone = dma_q->pos % bytesperline;
351 offset = linesdone * bytesperline * 2 + currlinedone;
352 startwrite = fieldstart + offset;
353 lencopy = bytesperline - currlinedone;
354 lencopy = lencopy > remain ? remain : lencopy;
356 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
357 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
358 ((char *)startwrite + lencopy) -
359 ((char *)outp + buf->length));
360 remain = (char *)outp + buf->length - (char *)startwrite;
365 memcpy(startwrite, startread, lencopy);
370 startwrite += lencopy + bytesperline;
371 startread += lencopy;
372 if (bytesperline > remain)
375 lencopy = bytesperline;
377 if ((char *)startwrite + lencopy > (char *)outp +
379 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
380 ((char *)startwrite + lencopy) -
381 ((char *)outp + buf->length));
382 lencopy = remain = (char *)outp + buf->length -
388 memcpy(startwrite, startread, lencopy);
394 /* We have enough data to check for greenscreen */
395 if (outp[0] < 0x60 && outp[1440] < 0x60)
396 dev->greenscreen_detected = 1;
403 * video-buf generic routine to get the next available buffer
405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
406 struct au0828_buffer **buf)
408 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
410 if (list_empty(&dma_q->active)) {
411 au0828_isocdbg("No active queue to serve\n");
412 dev->isoc_ctl.buf = NULL;
417 /* Get the next buffer */
418 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
419 /* Cleans up buffer - Useful for testing for frame/URB loss */
420 list_del(&(*buf)->list);
422 (*buf)->vb_buf = (*buf)->mem;
423 dev->isoc_ctl.buf = *buf;
428 static void au0828_copy_vbi(struct au0828_dev *dev,
429 struct au0828_dmaqueue *dma_q,
430 struct au0828_buffer *buf,
432 unsigned char *outp, unsigned long len)
434 unsigned char *startwrite, *startread;
439 au0828_isocdbg("dev is null\n");
444 au0828_isocdbg("dma_q is null\n");
450 au0828_isocdbg("p is null\n");
454 au0828_isocdbg("outp is null\n");
458 bytesperline = dev->vbi_width;
460 if (dma_q->pos + len > buf->length)
461 len = buf->length - dma_q->pos;
464 startwrite = outp + (dma_q->pos / 2);
466 /* Make sure the bottom field populates the second half of the frame */
467 if (buf->top_field == 0)
468 startwrite += bytesperline * dev->vbi_height;
470 for (i = 0; i < len; i += 2)
471 startwrite[j++] = startread[i+1];
478 * video-buf generic routine to get the next available VBI buffer
480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
481 struct au0828_buffer **buf)
483 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
485 if (list_empty(&dma_q->active)) {
486 au0828_isocdbg("No active queue to serve\n");
487 dev->isoc_ctl.vbi_buf = NULL;
492 /* Get the next buffer */
493 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
494 /* Cleans up buffer - Useful for testing for frame/URB loss */
495 list_del(&(*buf)->list);
497 (*buf)->vb_buf = (*buf)->mem;
498 dev->isoc_ctl.vbi_buf = *buf;
503 * Controls the isoc copy of each urb packet
505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
507 struct au0828_buffer *buf;
508 struct au0828_buffer *vbi_buf;
509 struct au0828_dmaqueue *dma_q = urb->context;
510 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
511 unsigned char *outp = NULL;
512 unsigned char *vbioutp = NULL;
513 int i, len = 0, rc = 1;
516 unsigned int vbi_field_size;
517 unsigned int remain, lencopy;
522 if ((dev->dev_state & DEV_DISCONNECTED) ||
523 (dev->dev_state & DEV_MISCONFIGURED))
526 if (urb->status < 0) {
527 print_err_status(dev, -1, urb->status);
528 if (urb->status == -ENOENT)
532 buf = dev->isoc_ctl.buf;
534 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
536 vbi_buf = dev->isoc_ctl.vbi_buf;
538 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
540 for (i = 0; i < urb->number_of_packets; i++) {
541 int status = urb->iso_frame_desc[i].status;
544 print_err_status(dev, i, status);
545 if (urb->iso_frame_desc[i].status != -EPROTO)
549 if (urb->iso_frame_desc[i].actual_length <= 0)
552 if (urb->iso_frame_desc[i].actual_length >
554 au0828_isocdbg("packet bigger than packet size");
558 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
560 len = urb->iso_frame_desc[i].actual_length - 4;
566 au0828_isocdbg("Video frame %s\n",
567 (fbyte & 0x40) ? "odd" : "even");
571 buffer_filled(dev, vbi_dma_q, vbi_buf);
572 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
576 vbioutp = vb2_plane_vaddr(
577 &vbi_buf->vb.vb2_buf, 0);
581 buffer_filled(dev, dma_q, buf);
582 get_next_buf(dma_q, &buf);
586 outp = vb2_plane_vaddr(
587 &buf->vb.vb2_buf, 0);
589 /* As long as isoc traffic is arriving, keep
590 resetting the timer */
591 if (dev->vid_timeout_running)
592 mod_timer(&dev->vid_timeout,
593 jiffies + (HZ / 10));
594 if (dev->vbi_timeout_running)
595 mod_timer(&dev->vbi_timeout,
596 jiffies + (HZ / 10));
606 if (vbi_buf != NULL) {
608 vbi_buf->top_field = 1;
610 vbi_buf->top_field = 0;
618 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
619 if (dev->vbi_read < vbi_field_size) {
620 remain = vbi_field_size - dev->vbi_read;
627 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
632 dev->vbi_read += lencopy;
635 if (dev->vbi_read >= vbi_field_size && buf != NULL)
636 au0828_copy_video(dev, dma_q, buf, p, outp, len);
641 static int queue_setup(struct vb2_queue *vq, const void *parg,
642 unsigned int *nbuffers, unsigned int *nplanes,
643 unsigned int sizes[], void *alloc_ctxs[])
645 const struct v4l2_format *fmt = parg;
646 struct au0828_dev *dev = vb2_get_drv_priv(vq);
647 unsigned long img_size = dev->height * dev->bytesperline;
650 size = fmt ? fmt->fmt.pix.sizeimage : img_size;
661 buffer_prepare(struct vb2_buffer *vb)
663 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
664 struct au0828_buffer *buf = container_of(vbuf,
665 struct au0828_buffer, vb);
666 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
668 buf->length = dev->height * dev->bytesperline;
670 if (vb2_plane_size(vb, 0) < buf->length) {
671 pr_err("%s data will not fit into plane (%lu < %lu)\n",
672 __func__, vb2_plane_size(vb, 0), buf->length);
675 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
680 buffer_queue(struct vb2_buffer *vb)
682 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
683 struct au0828_buffer *buf = container_of(vbuf,
684 struct au0828_buffer,
686 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
687 struct au0828_dmaqueue *vidq = &dev->vidq;
688 unsigned long flags = 0;
690 buf->mem = vb2_plane_vaddr(vb, 0);
691 buf->length = vb2_plane_size(vb, 0);
693 spin_lock_irqsave(&dev->slock, flags);
694 list_add_tail(&buf->list, &vidq->active);
695 spin_unlock_irqrestore(&dev->slock, flags);
698 static int au0828_i2s_init(struct au0828_dev *dev)
700 /* Enable i2s mode */
701 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
706 * Auvitek au0828 analog stream enable
708 static int au0828_analog_stream_enable(struct au0828_dev *d)
710 struct usb_interface *iface;
713 dprintk(1, "au0828_analog_stream_enable called\n");
715 iface = usb_ifnum_to_if(d->usbdev, 0);
716 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
717 dprintk(1, "Changing intf#0 to alt 5\n");
718 /* set au0828 interface0 to AS5 here again */
719 ret = usb_set_interface(d->usbdev, 0, 5);
721 pr_info("Au0828 can't set alt setting to 5!\n");
726 h = d->height / 2 + 2;
729 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
730 au0828_writereg(d, 0x106, 0x00);
732 au0828_writereg(d, 0x110, 0x00);
733 au0828_writereg(d, 0x111, 0x00);
734 au0828_writereg(d, 0x114, w & 0xff);
735 au0828_writereg(d, 0x115, w >> 8);
737 au0828_writereg(d, 0x112, 0x00);
738 au0828_writereg(d, 0x113, 0x00);
739 au0828_writereg(d, 0x116, h & 0xff);
740 au0828_writereg(d, 0x117, h >> 8);
741 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
746 static int au0828_analog_stream_disable(struct au0828_dev *d)
748 dprintk(1, "au0828_analog_stream_disable called\n");
749 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
753 static void au0828_analog_stream_reset(struct au0828_dev *dev)
755 dprintk(1, "au0828_analog_stream_reset called\n");
756 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
758 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
762 * Some operations needs to stop current streaming
764 static int au0828_stream_interrupt(struct au0828_dev *dev)
768 dev->stream_state = STREAM_INTERRUPT;
769 if (dev->dev_state == DEV_DISCONNECTED)
772 dev->dev_state = DEV_MISCONFIGURED;
773 dprintk(1, "%s device is misconfigured!\n", __func__);
779 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
781 struct au0828_dev *dev = vb2_get_drv_priv(vq);
784 dprintk(1, "au0828_start_analog_streaming called %d\n",
785 dev->streaming_users);
787 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
788 dev->frame_count = 0;
790 dev->vbi_frame_count = 0;
792 if (dev->streaming_users == 0) {
793 /* If we were doing ac97 instead of i2s, it would go here...*/
794 au0828_i2s_init(dev);
795 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
796 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
799 pr_info("au0828_init_isoc failed\n");
803 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
804 v4l2_device_call_all(&dev->v4l2_dev, 0, video,
806 dev->vid_timeout_running = 1;
807 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
808 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
809 dev->vbi_timeout_running = 1;
810 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
813 dev->streaming_users++;
817 static void au0828_stop_streaming(struct vb2_queue *vq)
819 struct au0828_dev *dev = vb2_get_drv_priv(vq);
820 struct au0828_dmaqueue *vidq = &dev->vidq;
821 unsigned long flags = 0;
823 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
825 if (dev->streaming_users-- == 1)
826 au0828_uninit_isoc(dev);
828 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
829 dev->vid_timeout_running = 0;
830 del_timer_sync(&dev->vid_timeout);
832 spin_lock_irqsave(&dev->slock, flags);
833 if (dev->isoc_ctl.buf != NULL) {
834 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
835 VB2_BUF_STATE_ERROR);
836 dev->isoc_ctl.buf = NULL;
838 while (!list_empty(&vidq->active)) {
839 struct au0828_buffer *buf;
841 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
842 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
843 list_del(&buf->list);
845 spin_unlock_irqrestore(&dev->slock, flags);
848 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
850 struct au0828_dev *dev = vb2_get_drv_priv(vq);
851 struct au0828_dmaqueue *vbiq = &dev->vbiq;
852 unsigned long flags = 0;
854 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
855 dev->streaming_users);
857 if (dev->streaming_users-- == 1)
858 au0828_uninit_isoc(dev);
860 spin_lock_irqsave(&dev->slock, flags);
861 if (dev->isoc_ctl.vbi_buf != NULL) {
862 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
863 VB2_BUF_STATE_ERROR);
864 dev->isoc_ctl.vbi_buf = NULL;
866 while (!list_empty(&vbiq->active)) {
867 struct au0828_buffer *buf;
869 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
870 list_del(&buf->list);
871 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
873 spin_unlock_irqrestore(&dev->slock, flags);
875 dev->vbi_timeout_running = 0;
876 del_timer_sync(&dev->vbi_timeout);
879 static struct vb2_ops au0828_video_qops = {
880 .queue_setup = queue_setup,
881 .buf_prepare = buffer_prepare,
882 .buf_queue = buffer_queue,
883 .start_streaming = au0828_start_analog_streaming,
884 .stop_streaming = au0828_stop_streaming,
885 .wait_prepare = vb2_ops_wait_prepare,
886 .wait_finish = vb2_ops_wait_finish,
889 /* ------------------------------------------------------------------
891 ------------------------------------------------------------------*/
893 * au0828_analog_unregister
894 * unregister v4l2 devices
896 void au0828_analog_unregister(struct au0828_dev *dev)
898 dprintk(1, "au0828_analog_unregister called\n");
899 mutex_lock(&au0828_sysfs_lock);
900 video_unregister_device(&dev->vdev);
901 video_unregister_device(&dev->vbi_dev);
902 mutex_unlock(&au0828_sysfs_lock);
905 /* This function ensures that video frames continue to be delivered even if
906 the ITU-656 input isn't receiving any data (thereby preventing applications
907 such as tvtime from hanging) */
908 static void au0828_vid_buffer_timeout(unsigned long data)
910 struct au0828_dev *dev = (struct au0828_dev *) data;
911 struct au0828_dmaqueue *dma_q = &dev->vidq;
912 struct au0828_buffer *buf;
913 unsigned char *vid_data;
914 unsigned long flags = 0;
916 spin_lock_irqsave(&dev->slock, flags);
918 buf = dev->isoc_ctl.buf;
920 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
921 memset(vid_data, 0x00, buf->length); /* Blank green frame */
922 buffer_filled(dev, dma_q, buf);
924 get_next_buf(dma_q, &buf);
926 if (dev->vid_timeout_running == 1)
927 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
929 spin_unlock_irqrestore(&dev->slock, flags);
932 static void au0828_vbi_buffer_timeout(unsigned long data)
934 struct au0828_dev *dev = (struct au0828_dev *) data;
935 struct au0828_dmaqueue *dma_q = &dev->vbiq;
936 struct au0828_buffer *buf;
937 unsigned char *vbi_data;
938 unsigned long flags = 0;
940 spin_lock_irqsave(&dev->slock, flags);
942 buf = dev->isoc_ctl.vbi_buf;
944 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
945 memset(vbi_data, 0x00, buf->length);
946 buffer_filled(dev, dma_q, buf);
948 vbi_get_next_buf(dma_q, &buf);
950 if (dev->vbi_timeout_running == 1)
951 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
952 spin_unlock_irqrestore(&dev->slock, flags);
955 static int au0828_v4l2_open(struct file *filp)
957 struct au0828_dev *dev = video_drvdata(filp);
961 "%s called std_set %d dev_state %d stream users %d users %d\n",
962 __func__, dev->std_set_in_tuner_core, dev->dev_state,
963 dev->streaming_users, dev->users);
965 if (mutex_lock_interruptible(&dev->lock))
968 ret = v4l2_fh_open(filp);
970 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
972 mutex_unlock(&dev->lock);
976 if (dev->users == 0) {
977 au0828_analog_stream_enable(dev);
978 au0828_analog_stream_reset(dev);
979 dev->stream_state = STREAM_OFF;
980 dev->dev_state |= DEV_INITIALIZED;
983 mutex_unlock(&dev->lock);
987 static int au0828_v4l2_close(struct file *filp)
990 struct au0828_dev *dev = video_drvdata(filp);
991 struct video_device *vdev = video_devdata(filp);
994 "%s called std_set %d dev_state %d stream users %d users %d\n",
995 __func__, dev->std_set_in_tuner_core, dev->dev_state,
996 dev->streaming_users, dev->users);
998 mutex_lock(&dev->lock);
999 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1000 /* Cancel timeout thread in case they didn't call streamoff */
1001 dev->vid_timeout_running = 0;
1002 del_timer_sync(&dev->vid_timeout);
1003 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1004 dev->vbi_timeout_running) {
1005 /* Cancel timeout thread in case they didn't call streamoff */
1006 dev->vbi_timeout_running = 0;
1007 del_timer_sync(&dev->vbi_timeout);
1010 if (dev->dev_state == DEV_DISCONNECTED)
1013 if (dev->users == 1) {
1014 /* Save some power by putting tuner to sleep */
1015 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1016 dev->std_set_in_tuner_core = 0;
1018 /* When close the device, set the usb intf0 into alt0 to free
1020 ret = usb_set_interface(dev->usbdev, 0, 0);
1022 pr_info("Au0828 can't set alternate to 0!\n");
1025 _vb2_fop_release(filp, NULL);
1027 mutex_unlock(&dev->lock);
1031 /* Must be called with dev->lock held */
1032 static void au0828_init_tuner(struct au0828_dev *dev)
1034 struct v4l2_frequency f = {
1035 .frequency = dev->ctrl_freq,
1036 .type = V4L2_TUNER_ANALOG_TV,
1039 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1040 dev->std_set_in_tuner_core, dev->dev_state);
1042 if (dev->std_set_in_tuner_core)
1044 dev->std_set_in_tuner_core = 1;
1045 i2c_gate_ctrl(dev, 1);
1046 /* If we've never sent the standard in tuner core, do so now.
1047 We don't do this at device probe because we don't want to
1048 incur the cost of a firmware load */
1049 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1050 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1051 i2c_gate_ctrl(dev, 0);
1054 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1055 struct v4l2_format *format)
1058 int width = format->fmt.pix.width;
1059 int height = format->fmt.pix.height;
1061 /* If they are demanding a format other than the one we support,
1062 bail out (tvtime asks for UYVY and then retries with YUYV) */
1063 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1066 /* format->fmt.pix.width only support 720 and height 480 */
1072 format->fmt.pix.width = width;
1073 format->fmt.pix.height = height;
1074 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1075 format->fmt.pix.bytesperline = width * 2;
1076 format->fmt.pix.sizeimage = width * height * 2;
1077 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1078 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1079 format->fmt.pix.priv = 0;
1081 if (cmd == VIDIOC_TRY_FMT)
1084 /* maybe set new image format, driver current only support 720*480 */
1086 dev->height = height;
1087 dev->frame_size = width * height * 2;
1088 dev->field_size = width * height;
1089 dev->bytesperline = width * 2;
1091 if (dev->stream_state == STREAM_ON) {
1092 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1093 ret = au0828_stream_interrupt(dev);
1095 dprintk(1, "error interrupting video stream!\n");
1100 au0828_analog_stream_enable(dev);
1105 static int vidioc_querycap(struct file *file, void *priv,
1106 struct v4l2_capability *cap)
1108 struct video_device *vdev = video_devdata(file);
1109 struct au0828_dev *dev = video_drvdata(file);
1111 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1112 dev->std_set_in_tuner_core, dev->dev_state);
1114 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1115 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1116 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1118 /* set the device capabilities */
1119 cap->device_caps = V4L2_CAP_AUDIO |
1120 V4L2_CAP_READWRITE |
1121 V4L2_CAP_STREAMING |
1123 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1124 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1126 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1127 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1128 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1132 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1133 struct v4l2_fmtdesc *f)
1138 dprintk(1, "%s called\n", __func__);
1140 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1141 strcpy(f->description, "Packed YUV2");
1144 f->pixelformat = V4L2_PIX_FMT_UYVY;
1149 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1150 struct v4l2_format *f)
1152 struct au0828_dev *dev = video_drvdata(file);
1154 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1155 dev->std_set_in_tuner_core, dev->dev_state);
1157 f->fmt.pix.width = dev->width;
1158 f->fmt.pix.height = dev->height;
1159 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1160 f->fmt.pix.bytesperline = dev->bytesperline;
1161 f->fmt.pix.sizeimage = dev->frame_size;
1162 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1163 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1164 f->fmt.pix.priv = 0;
1168 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1169 struct v4l2_format *f)
1171 struct au0828_dev *dev = video_drvdata(file);
1173 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1174 dev->std_set_in_tuner_core, dev->dev_state);
1176 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1179 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1180 struct v4l2_format *f)
1182 struct au0828_dev *dev = video_drvdata(file);
1185 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1186 dev->std_set_in_tuner_core, dev->dev_state);
1188 rc = check_dev(dev);
1192 if (vb2_is_busy(&dev->vb_vidq)) {
1193 pr_info("%s queue busy\n", __func__);
1198 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1203 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1205 struct au0828_dev *dev = video_drvdata(file);
1207 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1208 dev->std_set_in_tuner_core, dev->dev_state);
1210 if (norm == dev->std)
1213 if (dev->streaming_users > 0)
1218 au0828_init_tuner(dev);
1220 i2c_gate_ctrl(dev, 1);
1223 * FIXME: when we support something other than 60Hz standards,
1224 * we are going to have to make the au0828 bridge adjust the size
1225 * of its capture buffer, which is currently hardcoded at 720x480
1228 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1230 i2c_gate_ctrl(dev, 0);
1235 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1237 struct au0828_dev *dev = video_drvdata(file);
1239 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1240 dev->std_set_in_tuner_core, dev->dev_state);
1246 static int vidioc_enum_input(struct file *file, void *priv,
1247 struct v4l2_input *input)
1249 struct au0828_dev *dev = video_drvdata(file);
1252 static const char *inames[] = {
1253 [AU0828_VMUX_UNDEFINED] = "Undefined",
1254 [AU0828_VMUX_COMPOSITE] = "Composite",
1255 [AU0828_VMUX_SVIDEO] = "S-Video",
1256 [AU0828_VMUX_CABLE] = "Cable TV",
1257 [AU0828_VMUX_TELEVISION] = "Television",
1258 [AU0828_VMUX_DVB] = "DVB",
1259 [AU0828_VMUX_DEBUG] = "tv debug"
1262 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1263 dev->std_set_in_tuner_core, dev->dev_state);
1267 if (tmp >= AU0828_MAX_INPUT)
1269 if (AUVI_INPUT(tmp).type == 0)
1273 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1274 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1275 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1276 input->type |= V4L2_INPUT_TYPE_TUNER;
1277 input->audioset = 1;
1279 input->type |= V4L2_INPUT_TYPE_CAMERA;
1280 input->audioset = 2;
1283 input->std = dev->vdev.tvnorms;
1288 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1290 struct au0828_dev *dev = video_drvdata(file);
1292 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1293 dev->std_set_in_tuner_core, dev->dev_state);
1295 *i = dev->ctrl_input;
1299 static void au0828_s_input(struct au0828_dev *dev, int index)
1303 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1304 dev->std_set_in_tuner_core, dev->dev_state);
1306 switch (AUVI_INPUT(index).type) {
1307 case AU0828_VMUX_SVIDEO:
1308 dev->input_type = AU0828_VMUX_SVIDEO;
1309 dev->ctrl_ainput = 1;
1311 case AU0828_VMUX_COMPOSITE:
1312 dev->input_type = AU0828_VMUX_COMPOSITE;
1313 dev->ctrl_ainput = 1;
1315 case AU0828_VMUX_TELEVISION:
1316 dev->input_type = AU0828_VMUX_TELEVISION;
1317 dev->ctrl_ainput = 0;
1320 dprintk(1, "unknown input type set [%d]\n",
1321 AUVI_INPUT(index).type);
1325 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1326 AUVI_INPUT(index).vmux, 0, 0);
1328 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1330 if (AUVI_INPUT(i).audio_setup == NULL)
1338 (AUVI_INPUT(i).audio_setup)(dev, enable);
1340 /* Make sure we leave it turned on if some
1341 other input is routed to this callback */
1342 if ((AUVI_INPUT(i).audio_setup) !=
1343 ((AUVI_INPUT(index).audio_setup))) {
1344 (AUVI_INPUT(i).audio_setup)(dev, enable);
1349 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1350 AUVI_INPUT(index).amux, 0, 0);
1353 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1355 struct au0828_dev *dev = video_drvdata(file);
1357 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1359 if (index >= AU0828_MAX_INPUT)
1361 if (AUVI_INPUT(index).type == 0)
1363 dev->ctrl_input = index;
1364 au0828_s_input(dev, index);
1368 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1373 dprintk(1, "%s called\n", __func__);
1376 strcpy(a->name, "Television");
1378 strcpy(a->name, "Line in");
1380 a->capability = V4L2_AUDCAP_STEREO;
1384 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1386 struct au0828_dev *dev = video_drvdata(file);
1388 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1389 dev->std_set_in_tuner_core, dev->dev_state);
1391 a->index = dev->ctrl_ainput;
1393 strcpy(a->name, "Television");
1395 strcpy(a->name, "Line in");
1397 a->capability = V4L2_AUDCAP_STEREO;
1401 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1403 struct au0828_dev *dev = video_drvdata(file);
1405 if (a->index != dev->ctrl_ainput)
1408 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1409 dev->std_set_in_tuner_core, dev->dev_state);
1413 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1415 struct au0828_dev *dev = video_drvdata(file);
1420 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1421 dev->std_set_in_tuner_core, dev->dev_state);
1423 strcpy(t->name, "Auvitek tuner");
1425 au0828_init_tuner(dev);
1426 i2c_gate_ctrl(dev, 1);
1427 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1428 i2c_gate_ctrl(dev, 0);
1432 static int vidioc_s_tuner(struct file *file, void *priv,
1433 const struct v4l2_tuner *t)
1435 struct au0828_dev *dev = video_drvdata(file);
1440 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1441 dev->std_set_in_tuner_core, dev->dev_state);
1443 au0828_init_tuner(dev);
1444 i2c_gate_ctrl(dev, 1);
1445 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1446 i2c_gate_ctrl(dev, 0);
1448 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1455 static int vidioc_g_frequency(struct file *file, void *priv,
1456 struct v4l2_frequency *freq)
1458 struct au0828_dev *dev = video_drvdata(file);
1460 if (freq->tuner != 0)
1462 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1463 dev->std_set_in_tuner_core, dev->dev_state);
1464 freq->frequency = dev->ctrl_freq;
1468 static int vidioc_s_frequency(struct file *file, void *priv,
1469 const struct v4l2_frequency *freq)
1471 struct au0828_dev *dev = video_drvdata(file);
1472 struct v4l2_frequency new_freq = *freq;
1474 if (freq->tuner != 0)
1477 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1478 dev->std_set_in_tuner_core, dev->dev_state);
1480 au0828_init_tuner(dev);
1481 i2c_gate_ctrl(dev, 1);
1483 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1484 /* Get the actual set (and possibly clamped) frequency */
1485 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1486 dev->ctrl_freq = new_freq.frequency;
1488 i2c_gate_ctrl(dev, 0);
1490 au0828_analog_stream_reset(dev);
1496 /* RAW VBI ioctls */
1498 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1499 struct v4l2_format *format)
1501 struct au0828_dev *dev = video_drvdata(file);
1503 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1504 dev->std_set_in_tuner_core, dev->dev_state);
1506 format->fmt.vbi.samples_per_line = dev->vbi_width;
1507 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1508 format->fmt.vbi.offset = 0;
1509 format->fmt.vbi.flags = 0;
1510 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1512 format->fmt.vbi.count[0] = dev->vbi_height;
1513 format->fmt.vbi.count[1] = dev->vbi_height;
1514 format->fmt.vbi.start[0] = 21;
1515 format->fmt.vbi.start[1] = 284;
1516 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1521 static int vidioc_cropcap(struct file *file, void *priv,
1522 struct v4l2_cropcap *cc)
1524 struct au0828_dev *dev = video_drvdata(file);
1526 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1529 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1530 dev->std_set_in_tuner_core, dev->dev_state);
1532 cc->bounds.left = 0;
1534 cc->bounds.width = dev->width;
1535 cc->bounds.height = dev->height;
1537 cc->defrect = cc->bounds;
1539 cc->pixelaspect.numerator = 54;
1540 cc->pixelaspect.denominator = 59;
1545 #ifdef CONFIG_VIDEO_ADV_DEBUG
1546 static int vidioc_g_register(struct file *file, void *priv,
1547 struct v4l2_dbg_register *reg)
1549 struct au0828_dev *dev = video_drvdata(file);
1551 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1552 dev->std_set_in_tuner_core, dev->dev_state);
1554 reg->val = au0828_read(dev, reg->reg);
1559 static int vidioc_s_register(struct file *file, void *priv,
1560 const struct v4l2_dbg_register *reg)
1562 struct au0828_dev *dev = video_drvdata(file);
1564 dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1565 dev->std_set_in_tuner_core, dev->dev_state);
1567 return au0828_writereg(dev, reg->reg, reg->val);
1571 static int vidioc_log_status(struct file *file, void *fh)
1573 struct video_device *vdev = video_devdata(file);
1575 dprintk(1, "%s called\n", __func__);
1577 v4l2_ctrl_log_status(file, fh);
1578 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1582 void au0828_v4l2_suspend(struct au0828_dev *dev)
1587 pr_info("stopping V4L2\n");
1589 if (dev->stream_state == STREAM_ON) {
1590 pr_info("stopping V4L2 active URBs\n");
1591 au0828_analog_stream_disable(dev);
1593 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1594 urb = dev->isoc_ctl.urb[i];
1596 if (!irqs_disabled())
1599 usb_unlink_urb(urb);
1604 if (dev->vid_timeout_running)
1605 del_timer_sync(&dev->vid_timeout);
1606 if (dev->vbi_timeout_running)
1607 del_timer_sync(&dev->vbi_timeout);
1610 void au0828_v4l2_resume(struct au0828_dev *dev)
1614 pr_info("restarting V4L2\n");
1616 if (dev->stream_state == STREAM_ON) {
1617 au0828_stream_interrupt(dev);
1618 au0828_init_tuner(dev);
1621 if (dev->vid_timeout_running)
1622 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1623 if (dev->vbi_timeout_running)
1624 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1626 /* If we were doing ac97 instead of i2s, it would go here...*/
1627 au0828_i2s_init(dev);
1629 au0828_analog_stream_enable(dev);
1631 if (!(dev->stream_state == STREAM_ON)) {
1632 au0828_analog_stream_reset(dev);
1634 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1635 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1637 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1639 au0828_uninit_isoc(dev);
1645 static struct v4l2_file_operations au0828_v4l_fops = {
1646 .owner = THIS_MODULE,
1647 .open = au0828_v4l2_open,
1648 .release = au0828_v4l2_close,
1649 .read = vb2_fop_read,
1650 .poll = vb2_fop_poll,
1651 .mmap = vb2_fop_mmap,
1652 .unlocked_ioctl = video_ioctl2,
1655 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1656 .vidioc_querycap = vidioc_querycap,
1657 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1658 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1659 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1660 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1661 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1662 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1663 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1664 .vidioc_enumaudio = vidioc_enumaudio,
1665 .vidioc_g_audio = vidioc_g_audio,
1666 .vidioc_s_audio = vidioc_s_audio,
1667 .vidioc_cropcap = vidioc_cropcap,
1669 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1670 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1671 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1672 .vidioc_querybuf = vb2_ioctl_querybuf,
1673 .vidioc_qbuf = vb2_ioctl_qbuf,
1674 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1675 .vidioc_expbuf = vb2_ioctl_expbuf,
1677 .vidioc_s_std = vidioc_s_std,
1678 .vidioc_g_std = vidioc_g_std,
1679 .vidioc_enum_input = vidioc_enum_input,
1680 .vidioc_g_input = vidioc_g_input,
1681 .vidioc_s_input = vidioc_s_input,
1683 .vidioc_streamon = vb2_ioctl_streamon,
1684 .vidioc_streamoff = vb2_ioctl_streamoff,
1686 .vidioc_g_tuner = vidioc_g_tuner,
1687 .vidioc_s_tuner = vidioc_s_tuner,
1688 .vidioc_g_frequency = vidioc_g_frequency,
1689 .vidioc_s_frequency = vidioc_s_frequency,
1690 #ifdef CONFIG_VIDEO_ADV_DEBUG
1691 .vidioc_g_register = vidioc_g_register,
1692 .vidioc_s_register = vidioc_s_register,
1694 .vidioc_log_status = vidioc_log_status,
1695 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1696 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1699 static const struct video_device au0828_video_template = {
1700 .fops = &au0828_v4l_fops,
1701 .release = video_device_release_empty,
1702 .ioctl_ops = &video_ioctl_ops,
1703 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1706 static int au0828_vb2_setup(struct au0828_dev *dev)
1709 struct vb2_queue *q;
1711 /* Setup Videobuf2 for Video capture */
1713 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1714 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1715 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1717 q->buf_struct_size = sizeof(struct au0828_buffer);
1718 q->ops = &au0828_video_qops;
1719 q->mem_ops = &vb2_vmalloc_memops;
1721 rc = vb2_queue_init(q);
1725 /* Setup Videobuf2 for VBI capture */
1727 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1728 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1729 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1731 q->buf_struct_size = sizeof(struct au0828_buffer);
1732 q->ops = &au0828_vbi_qops;
1733 q->mem_ops = &vb2_vmalloc_memops;
1735 rc = vb2_queue_init(q);
1742 /**************************************************************************/
1744 int au0828_analog_register(struct au0828_dev *dev,
1745 struct usb_interface *interface)
1747 int retval = -ENOMEM;
1748 struct usb_host_interface *iface_desc;
1749 struct usb_endpoint_descriptor *endpoint;
1752 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1753 interface->cur_altsetting->desc.bInterfaceNumber);
1755 /* set au0828 usb interface0 to as5 */
1756 retval = usb_set_interface(dev->usbdev,
1757 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1759 pr_info("Failure setting usb interface0 to as5\n");
1763 /* Figure out which endpoint has the isoc interface */
1764 iface_desc = interface->cur_altsetting;
1765 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1766 endpoint = &iface_desc->endpoint[i].desc;
1767 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1769 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1770 == USB_ENDPOINT_XFER_ISOC)) {
1772 /* we find our isoc in endpoint */
1773 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1774 dev->max_pkt_size = (tmp & 0x07ff) *
1775 (((tmp & 0x1800) >> 11) + 1);
1776 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1778 "Found isoc endpoint 0x%02x, max size = %d\n",
1779 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1782 if (!(dev->isoc_in_endpointaddr)) {
1783 pr_info("Could not locate isoc endpoint\n");
1787 init_waitqueue_head(&dev->open);
1788 spin_lock_init(&dev->slock);
1790 /* init video dma queues */
1791 INIT_LIST_HEAD(&dev->vidq.active);
1792 INIT_LIST_HEAD(&dev->vbiq.active);
1794 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1795 (unsigned long)dev);
1796 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1797 (unsigned long)dev);
1799 dev->width = NTSC_STD_W;
1800 dev->height = NTSC_STD_H;
1801 dev->field_size = dev->width * dev->height;
1802 dev->frame_size = dev->field_size << 1;
1803 dev->bytesperline = dev->width << 1;
1804 dev->vbi_width = 720;
1805 dev->vbi_height = 1;
1806 dev->ctrl_ainput = 0;
1807 dev->ctrl_freq = 960;
1808 dev->std = V4L2_STD_NTSC_M;
1809 au0828_s_input(dev, 0);
1811 mutex_init(&dev->vb_queue_lock);
1812 mutex_init(&dev->vb_vbi_queue_lock);
1814 /* Fill the video capture device struct */
1815 dev->vdev = au0828_video_template;
1816 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1817 dev->vdev.lock = &dev->lock;
1818 dev->vdev.queue = &dev->vb_vidq;
1819 dev->vdev.queue->lock = &dev->vb_queue_lock;
1820 strcpy(dev->vdev.name, "au0828a video");
1822 /* Setup the VBI device */
1823 dev->vbi_dev = au0828_video_template;
1824 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1825 dev->vbi_dev.lock = &dev->lock;
1826 dev->vbi_dev.queue = &dev->vb_vbiq;
1827 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1828 strcpy(dev->vbi_dev.name, "au0828a vbi");
1830 /* initialize videobuf2 stuff */
1831 retval = au0828_vb2_setup(dev);
1833 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1838 /* Register the v4l2 device */
1839 video_set_drvdata(&dev->vdev, dev);
1840 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
1842 dprintk(1, "unable to register video device (error = %d).\n",
1848 /* Register the vbi device */
1849 video_set_drvdata(&dev->vbi_dev, dev);
1850 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
1852 dprintk(1, "unable to register vbi device (error = %d).\n",
1855 goto err_reg_vbi_dev;
1858 dprintk(1, "%s completed!\n", __func__);
1863 video_unregister_device(&dev->vdev);
1865 vb2_queue_release(&dev->vb_vidq);
1866 vb2_queue_release(&dev->vb_vbiq);