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- /*
- * Auvitek AU0828 USB Bridge (Analog video support)
- *
- * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
- * Copyright (C) 2005-2008 Auvitek International, Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * As published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
- /* Developer Notes:
- *
- * VBI support is not yet working
- * The hardware scaler supported is unimplemented
- * AC97 audio support is unimplemented (only i2s audio mode)
- *
- */
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/device.h>
- #include <linux/suspend.h>
- #include <linux/version.h>
- #include <media/v4l2-common.h>
- #include <media/v4l2-ioctl.h>
- #include <media/v4l2-chip-ident.h>
- #include <media/tuner.h>
- #include "au0828.h"
- #include "au0828-reg.h"
- static LIST_HEAD(au0828_devlist);
- static DEFINE_MUTEX(au0828_sysfs_lock);
- #define AU0828_VERSION_CODE KERNEL_VERSION(0, 0, 1)
- /* ------------------------------------------------------------------
- Videobuf operations
- ------------------------------------------------------------------*/
- static unsigned int isoc_debug;
- module_param(isoc_debug, int, 0644);
- MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
- #define au0828_isocdbg(fmt, arg...) \
- do {\
- if (isoc_debug) { \
- printk(KERN_INFO "au0828 %s :"fmt, \
- __func__ , ##arg); \
- } \
- } while (0)
- static inline void print_err_status(struct au0828_dev *dev,
- int packet, int status)
- {
- char *errmsg = "Unknown";
- switch (status) {
- case -ENOENT:
- errmsg = "unlinked synchronuously";
- break;
- case -ECONNRESET:
- errmsg = "unlinked asynchronuously";
- break;
- case -ENOSR:
- errmsg = "Buffer error (overrun)";
- break;
- case -EPIPE:
- errmsg = "Stalled (device not responding)";
- break;
- case -EOVERFLOW:
- errmsg = "Babble (bad cable?)";
- break;
- case -EPROTO:
- errmsg = "Bit-stuff error (bad cable?)";
- break;
- case -EILSEQ:
- errmsg = "CRC/Timeout (could be anything)";
- break;
- case -ETIME:
- errmsg = "Device does not respond";
- break;
- }
- if (packet < 0) {
- au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
- } else {
- au0828_isocdbg("URB packet %d, status %d [%s].\n",
- packet, status, errmsg);
- }
- }
- static int check_dev(struct au0828_dev *dev)
- {
- if (dev->dev_state & DEV_DISCONNECTED) {
- printk(KERN_INFO "v4l2 ioctl: device not present\n");
- return -ENODEV;
- }
- if (dev->dev_state & DEV_MISCONFIGURED) {
- printk(KERN_INFO "v4l2 ioctl: device is misconfigured; "
- "close and open it again\n");
- return -EIO;
- }
- return 0;
- }
- /*
- * IRQ callback, called by URB callback
- */
- static void au0828_irq_callback(struct urb *urb)
- {
- struct au0828_dmaqueue *dma_q = urb->context;
- struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
- int rc, i;
- switch (urb->status) {
- case 0: /* success */
- case -ETIMEDOUT: /* NAK */
- break;
- case -ECONNRESET: /* kill */
- case -ENOENT:
- case -ESHUTDOWN:
- au0828_isocdbg("au0828_irq_callback called: status kill\n");
- return;
- default: /* unknown error */
- au0828_isocdbg("urb completition error %d.\n", urb->status);
- break;
- }
- /* Copy data from URB */
- spin_lock(&dev->slock);
- rc = dev->isoc_ctl.isoc_copy(dev, urb);
- spin_unlock(&dev->slock);
- /* Reset urb buffers */
- for (i = 0; i < urb->number_of_packets; i++) {
- urb->iso_frame_desc[i].status = 0;
- urb->iso_frame_desc[i].actual_length = 0;
- }
- urb->status = 0;
- urb->status = usb_submit_urb(urb, GFP_ATOMIC);
- if (urb->status) {
- au0828_isocdbg("urb resubmit failed (error=%i)\n",
- urb->status);
- }
- }
- /*
- * Stop and Deallocate URBs
- */
- void au0828_uninit_isoc(struct au0828_dev *dev)
- {
- struct urb *urb;
- int i;
- au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
- dev->isoc_ctl.nfields = -1;
- for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
- urb = dev->isoc_ctl.urb[i];
- if (urb) {
- if (!irqs_disabled())
- usb_kill_urb(urb);
- else
- usb_unlink_urb(urb);
- if (dev->isoc_ctl.transfer_buffer[i]) {
- usb_buffer_free(dev->usbdev,
- urb->transfer_buffer_length,
- dev->isoc_ctl.transfer_buffer[i],
- urb->transfer_dma);
- }
- usb_free_urb(urb);
- dev->isoc_ctl.urb[i] = NULL;
- }
- dev->isoc_ctl.transfer_buffer[i] = NULL;
- }
- kfree(dev->isoc_ctl.urb);
- kfree(dev->isoc_ctl.transfer_buffer);
- dev->isoc_ctl.urb = NULL;
- dev->isoc_ctl.transfer_buffer = NULL;
- dev->isoc_ctl.num_bufs = 0;
- }
- /*
- * Allocate URBs and start IRQ
- */
- int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
- int num_bufs, int max_pkt_size,
- int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
- {
- struct au0828_dmaqueue *dma_q = &dev->vidq;
- int i;
- int sb_size, pipe;
- struct urb *urb;
- int j, k;
- int rc;
- au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
- /* De-allocates all pending stuff */
- au0828_uninit_isoc(dev);
- dev->isoc_ctl.isoc_copy = isoc_copy;
- dev->isoc_ctl.num_bufs = num_bufs;
- dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
- if (!dev->isoc_ctl.urb) {
- au0828_isocdbg("cannot alloc memory for usb buffers\n");
- return -ENOMEM;
- }
- dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
- GFP_KERNEL);
- if (!dev->isoc_ctl.transfer_buffer) {
- au0828_isocdbg("cannot allocate memory for usb transfer\n");
- kfree(dev->isoc_ctl.urb);
- return -ENOMEM;
- }
- dev->isoc_ctl.max_pkt_size = max_pkt_size;
- dev->isoc_ctl.buf = NULL;
- sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
- /* allocate urbs and transfer buffers */
- for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
- urb = usb_alloc_urb(max_packets, GFP_KERNEL);
- if (!urb) {
- au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
- au0828_uninit_isoc(dev);
- return -ENOMEM;
- }
- dev->isoc_ctl.urb[i] = urb;
- dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->usbdev,
- sb_size, GFP_KERNEL, &urb->transfer_dma);
- if (!dev->isoc_ctl.transfer_buffer[i]) {
- printk("unable to allocate %i bytes for transfer"
- " buffer %i%s\n",
- sb_size, i,
- in_interrupt() ? " while in int" : "");
- au0828_uninit_isoc(dev);
- return -ENOMEM;
- }
- memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
- pipe = usb_rcvisocpipe(dev->usbdev,
- dev->isoc_in_endpointaddr),
- usb_fill_int_urb(urb, dev->usbdev, pipe,
- dev->isoc_ctl.transfer_buffer[i], sb_size,
- au0828_irq_callback, dma_q, 1);
- urb->number_of_packets = max_packets;
- urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
- k = 0;
- for (j = 0; j < max_packets; j++) {
- urb->iso_frame_desc[j].offset = k;
- urb->iso_frame_desc[j].length =
- dev->isoc_ctl.max_pkt_size;
- k += dev->isoc_ctl.max_pkt_size;
- }
- }
- init_waitqueue_head(&dma_q->wq);
- /* submit urbs and enables IRQ */
- for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
- rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
- if (rc) {
- au0828_isocdbg("submit of urb %i failed (error=%i)\n",
- i, rc);
- au0828_uninit_isoc(dev);
- return rc;
- }
- }
- return 0;
- }
- /*
- * Announces that a buffer were filled and request the next
- */
- static inline void buffer_filled(struct au0828_dev *dev,
- struct au0828_dmaqueue *dma_q,
- struct au0828_buffer *buf)
- {
- /* Advice that buffer was filled */
- au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
- buf->vb.state = VIDEOBUF_DONE;
- buf->vb.field_count++;
- do_gettimeofday(&buf->vb.ts);
- dev->isoc_ctl.buf = NULL;
- list_del(&buf->vb.queue);
- wake_up(&buf->vb.done);
- }
- /*
- * Identify the buffer header type and properly handles
- */
- static void au0828_copy_video(struct au0828_dev *dev,
- struct au0828_dmaqueue *dma_q,
- struct au0828_buffer *buf,
- unsigned char *p,
- unsigned char *outp, unsigned long len)
- {
- void *fieldstart, *startwrite, *startread;
- int linesdone, currlinedone, offset, lencopy, remain;
- int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
- if (dma_q->pos + len > buf->vb.size)
- len = buf->vb.size - dma_q->pos;
- startread = p;
- remain = len;
- /* Interlaces frame */
- if (buf->top_field)
- fieldstart = outp;
- else
- fieldstart = outp + bytesperline;
- linesdone = dma_q->pos / bytesperline;
- currlinedone = dma_q->pos % bytesperline;
- offset = linesdone * bytesperline * 2 + currlinedone;
- startwrite = fieldstart + offset;
- lencopy = bytesperline - currlinedone;
- lencopy = lencopy > remain ? remain : lencopy;
- if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
- au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
- ((char *)startwrite + lencopy) -
- ((char *)outp + buf->vb.size));
- remain = (char *)outp + buf->vb.size - (char *)startwrite;
- lencopy = remain;
- }
- if (lencopy <= 0)
- return;
- memcpy(startwrite, startread, lencopy);
- remain -= lencopy;
- while (remain > 0) {
- startwrite += lencopy + bytesperline;
- startread += lencopy;
- if (bytesperline > remain)
- lencopy = remain;
- else
- lencopy = bytesperline;
- if ((char *)startwrite + lencopy > (char *)outp +
- buf->vb.size) {
- au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
- ((char *)startwrite + lencopy) -
- ((char *)outp + buf->vb.size));
- lencopy = remain = (char *)outp + buf->vb.size -
- (char *)startwrite;
- }
- if (lencopy <= 0)
- break;
- memcpy(startwrite, startread, lencopy);
- remain -= lencopy;
- }
- if (offset > 1440) {
- /* We have enough data to check for greenscreen */
- if (outp[0] < 0x60 && outp[1440] < 0x60)
- dev->greenscreen_detected = 1;
- }
- dma_q->pos += len;
- }
- /*
- * video-buf generic routine to get the next available buffer
- */
- static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
- struct au0828_buffer **buf)
- {
- struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
- if (list_empty(&dma_q->active)) {
- au0828_isocdbg("No active queue to serve\n");
- dev->isoc_ctl.buf = NULL;
- *buf = NULL;
- return;
- }
- /* Get the next buffer */
- *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
- dev->isoc_ctl.buf = *buf;
- return;
- }
- /*
- * Controls the isoc copy of each urb packet
- */
- static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
- {
- struct au0828_buffer *buf;
- struct au0828_dmaqueue *dma_q = urb->context;
- unsigned char *outp = NULL;
- int i, len = 0, rc = 1;
- unsigned char *p;
- unsigned char fbyte;
- if (!dev)
- return 0;
- if ((dev->dev_state & DEV_DISCONNECTED) ||
- (dev->dev_state & DEV_MISCONFIGURED))
- return 0;
- if (urb->status < 0) {
- print_err_status(dev, -1, urb->status);
- if (urb->status == -ENOENT)
- return 0;
- }
- buf = dev->isoc_ctl.buf;
- if (buf != NULL)
- outp = videobuf_to_vmalloc(&buf->vb);
- for (i = 0; i < urb->number_of_packets; i++) {
- int status = urb->iso_frame_desc[i].status;
- if (status < 0) {
- print_err_status(dev, i, status);
- if (urb->iso_frame_desc[i].status != -EPROTO)
- continue;
- }
- if (urb->iso_frame_desc[i].actual_length <= 0)
- continue;
- if (urb->iso_frame_desc[i].actual_length >
- dev->max_pkt_size) {
- au0828_isocdbg("packet bigger than packet size");
- continue;
- }
- p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
- fbyte = p[0];
- len = urb->iso_frame_desc[i].actual_length - 4;
- p += 4;
- if (fbyte & 0x80) {
- len -= 4;
- p += 4;
- au0828_isocdbg("Video frame %s\n",
- (fbyte & 0x40) ? "odd" : "even");
- if (!(fbyte & 0x40)) {
- if (buf != NULL)
- buffer_filled(dev, dma_q, buf);
- get_next_buf(dma_q, &buf);
- if (buf == NULL)
- outp = NULL;
- else
- outp = videobuf_to_vmalloc(&buf->vb);
- }
- if (buf != NULL) {
- if (fbyte & 0x40)
- buf->top_field = 1;
- else
- buf->top_field = 0;
- }
- dma_q->pos = 0;
- }
- if (buf != NULL)
- au0828_copy_video(dev, dma_q, buf, p, outp, len);
- }
- return rc;
- }
- static int
- buffer_setup(struct videobuf_queue *vq, unsigned int *count,
- unsigned int *size)
- {
- struct au0828_fh *fh = vq->priv_data;
- *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
- if (0 == *count)
- *count = AU0828_DEF_BUF;
- if (*count < AU0828_MIN_BUF)
- *count = AU0828_MIN_BUF;
- return 0;
- }
- /* This is called *without* dev->slock held; please keep it that way */
- static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
- {
- struct au0828_fh *fh = vq->priv_data;
- struct au0828_dev *dev = fh->dev;
- unsigned long flags = 0;
- if (in_interrupt())
- BUG();
- /* We used to wait for the buffer to finish here, but this didn't work
- because, as we were keeping the state as VIDEOBUF_QUEUED,
- videobuf_queue_cancel marked it as finished for us.
- (Also, it could wedge forever if the hardware was misconfigured.)
- This should be safe; by the time we get here, the buffer isn't
- queued anymore. If we ever start marking the buffers as
- VIDEOBUF_ACTIVE, it won't be, though.
- */
- spin_lock_irqsave(&dev->slock, flags);
- if (dev->isoc_ctl.buf == buf)
- dev->isoc_ctl.buf = NULL;
- spin_unlock_irqrestore(&dev->slock, flags);
- videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
- }
- static int
- buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
- enum v4l2_field field)
- {
- struct au0828_fh *fh = vq->priv_data;
- struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
- struct au0828_dev *dev = fh->dev;
- int rc = 0, urb_init = 0;
- buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
- buf->vb.width = dev->width;
- buf->vb.height = dev->height;
- buf->vb.field = field;
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- rc = videobuf_iolock(vq, &buf->vb, NULL);
- if (rc < 0) {
- printk(KERN_INFO "videobuf_iolock failed\n");
- goto fail;
- }
- }
- if (!dev->isoc_ctl.num_bufs)
- urb_init = 1;
- if (urb_init) {
- rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
- AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
- au0828_isoc_copy);
- if (rc < 0) {
- printk(KERN_INFO "au0828_init_isoc failed\n");
- goto fail;
- }
- }
- buf->vb.state = VIDEOBUF_PREPARED;
- return 0;
- fail:
- free_buffer(vq, buf);
- return rc;
- }
- static void
- buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
- {
- struct au0828_buffer *buf = container_of(vb,
- struct au0828_buffer,
- vb);
- struct au0828_fh *fh = vq->priv_data;
- struct au0828_dev *dev = fh->dev;
- struct au0828_dmaqueue *vidq = &dev->vidq;
- buf->vb.state = VIDEOBUF_QUEUED;
- list_add_tail(&buf->vb.queue, &vidq->active);
- }
- static void buffer_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
- {
- struct au0828_buffer *buf = container_of(vb,
- struct au0828_buffer,
- vb);
- free_buffer(vq, buf);
- }
- static struct videobuf_queue_ops au0828_video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
- };
- /* ------------------------------------------------------------------
- V4L2 interface
- ------------------------------------------------------------------*/
- static int au0828_i2s_init(struct au0828_dev *dev)
- {
- /* Enable i2s mode */
- au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
- return 0;
- }
- /*
- * Auvitek au0828 analog stream enable
- * Please set interface0 to AS5 before enable the stream
- */
- int au0828_analog_stream_enable(struct au0828_dev *d)
- {
- dprintk(1, "au0828_analog_stream_enable called\n");
- au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
- au0828_writereg(d, 0x106, 0x00);
- /* set x position */
- au0828_writereg(d, 0x110, 0x00);
- au0828_writereg(d, 0x111, 0x00);
- au0828_writereg(d, 0x114, 0xa0);
- au0828_writereg(d, 0x115, 0x05);
- /* set y position */
- au0828_writereg(d, 0x112, 0x02);
- au0828_writereg(d, 0x113, 0x00);
- au0828_writereg(d, 0x116, 0xf2);
- au0828_writereg(d, 0x117, 0x00);
- au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
- return 0;
- }
- int au0828_analog_stream_disable(struct au0828_dev *d)
- {
- dprintk(1, "au0828_analog_stream_disable called\n");
- au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
- return 0;
- }
- void au0828_analog_stream_reset(struct au0828_dev *dev)
- {
- dprintk(1, "au0828_analog_stream_reset called\n");
- au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
- mdelay(30);
- au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
- }
- /*
- * Some operations needs to stop current streaming
- */
- static int au0828_stream_interrupt(struct au0828_dev *dev)
- {
- int ret = 0;
- dev->stream_state = STREAM_INTERRUPT;
- if (dev->dev_state == DEV_DISCONNECTED)
- return -ENODEV;
- else if (ret) {
- dev->dev_state = DEV_MISCONFIGURED;
- dprintk(1, "%s device is misconfigured!\n", __func__);
- return ret;
- }
- return 0;
- }
- /*
- * au0828_release_resources
- * unregister v4l2 devices
- */
- void au0828_analog_unregister(struct au0828_dev *dev)
- {
- dprintk(1, "au0828_release_resources called\n");
- mutex_lock(&au0828_sysfs_lock);
- if (dev->vdev) {
- list_del(&dev->au0828list);
- video_unregister_device(dev->vdev);
- }
- if (dev->vbi_dev)
- video_unregister_device(dev->vbi_dev);
- mutex_unlock(&au0828_sysfs_lock);
- }
- /* Usage lock check functions */
- static int res_get(struct au0828_fh *fh)
- {
- struct au0828_dev *dev = fh->dev;
- int rc = 0;
- /* This instance already has stream_on */
- if (fh->stream_on)
- return rc;
- if (dev->stream_on)
- return -EBUSY;
- dev->stream_on = 1;
- fh->stream_on = 1;
- return rc;
- }
- static int res_check(struct au0828_fh *fh)
- {
- return fh->stream_on;
- }
- static void res_free(struct au0828_fh *fh)
- {
- struct au0828_dev *dev = fh->dev;
- fh->stream_on = 0;
- dev->stream_on = 0;
- }
- static int au0828_v4l2_open(struct file *filp)
- {
- int minor = video_devdata(filp)->minor;
- int ret = 0;
- struct au0828_dev *h, *dev = NULL;
- struct au0828_fh *fh;
- int type = 0;
- struct list_head *list;
- list_for_each(list, &au0828_devlist) {
- h = list_entry(list, struct au0828_dev, au0828list);
- if (h->vdev->minor == minor) {
- dev = h;
- type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- }
- #ifdef VBI_IS_WORKING
- if (h->vbi_dev->minor == minor) {
- dev = h;
- type = V4L2_BUF_TYPE_VBI_CAPTURE;
- }
- #endif
- }
- if (NULL == dev)
- return -ENODEV;
- fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
- if (NULL == fh) {
- dprintk(1, "Failed allocate au0828_fh struct!\n");
- return -ENOMEM;
- }
- fh->type = type;
- fh->dev = dev;
- filp->private_data = fh;
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
- /* set au0828 interface0 to AS5 here again */
- ret = usb_set_interface(dev->usbdev, 0, 5);
- if (ret < 0) {
- printk(KERN_INFO "Au0828 can't set alternate to 5!\n");
- return -EBUSY;
- }
- dev->width = NTSC_STD_W;
- dev->height = NTSC_STD_H;
- dev->frame_size = dev->width * dev->height * 2;
- dev->field_size = dev->width * dev->height;
- dev->bytesperline = dev->width * 2;
- au0828_analog_stream_enable(dev);
- au0828_analog_stream_reset(dev);
- /* If we were doing ac97 instead of i2s, it would go here...*/
- au0828_i2s_init(dev);
- dev->stream_state = STREAM_OFF;
- dev->dev_state |= DEV_INITIALIZED;
- }
- dev->users++;
- videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
- NULL, &dev->slock, fh->type,
- V4L2_FIELD_INTERLACED,
- sizeof(struct au0828_buffer), fh);
- return ret;
- }
- static int au0828_v4l2_close(struct file *filp)
- {
- int ret;
- struct au0828_fh *fh = filp->private_data;
- struct au0828_dev *dev = fh->dev;
- mutex_lock(&dev->lock);
- if (res_check(fh))
- res_free(fh);
- if (dev->users == 1) {
- videobuf_stop(&fh->vb_vidq);
- videobuf_mmap_free(&fh->vb_vidq);
- if (dev->dev_state & DEV_DISCONNECTED) {
- au0828_analog_unregister(dev);
- mutex_unlock(&dev->lock);
- kfree(dev);
- return 0;
- }
- au0828_analog_stream_disable(dev);
- au0828_uninit_isoc(dev);
- /* Save some power by putting tuner to sleep */
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_standby);
- /* When close the device, set the usb intf0 into alt0 to free
- USB bandwidth */
- ret = usb_set_interface(dev->usbdev, 0, 0);
- if (ret < 0)
- printk(KERN_INFO "Au0828 can't set alternate to 0!\n");
- }
- kfree(fh);
- dev->users--;
- wake_up_interruptible_nr(&dev->open, 1);
- mutex_unlock(&dev->lock);
- return 0;
- }
- static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
- size_t count, loff_t *pos)
- {
- struct au0828_fh *fh = filp->private_data;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- mutex_lock(&dev->lock);
- rc = res_get(fh);
- mutex_unlock(&dev->lock);
- if (unlikely(rc < 0))
- return rc;
- return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
- filp->f_flags & O_NONBLOCK);
- }
- return 0;
- }
- static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
- {
- struct au0828_fh *fh = filp->private_data;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- mutex_lock(&dev->lock);
- rc = res_get(fh);
- mutex_unlock(&dev->lock);
- if (unlikely(rc < 0))
- return POLLERR;
- if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
- return POLLERR;
- return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
- }
- static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
- {
- struct au0828_fh *fh = filp->private_data;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- mutex_lock(&dev->lock);
- rc = res_get(fh);
- mutex_unlock(&dev->lock);
- if (unlikely(rc < 0))
- return rc;
- rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
- return rc;
- }
- static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
- struct v4l2_format *format)
- {
- int ret;
- int width = format->fmt.pix.width;
- int height = format->fmt.pix.height;
- unsigned int maxwidth, maxheight;
- maxwidth = 720;
- maxheight = 480;
- #ifdef VBI_IS_WORKING
- if (format->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
- dprintk(1, "VBI format set: to be supported!\n");
- return 0;
- }
- if (format->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return 0;
- #endif
- if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- /* If they are demanding a format other than the one we support,
- bail out (tvtime asks for UYVY and then retries with YUYV) */
- if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
- return -EINVAL;
- /* format->fmt.pix.width only support 720 and height 480 */
- if (width != 720)
- width = 720;
- if (height != 480)
- height = 480;
- format->fmt.pix.width = width;
- format->fmt.pix.height = height;
- format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
- format->fmt.pix.bytesperline = width * 2;
- format->fmt.pix.sizeimage = width * height * 2;
- format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- format->fmt.pix.field = V4L2_FIELD_INTERLACED;
- if (cmd == VIDIOC_TRY_FMT)
- return 0;
- /* maybe set new image format, driver current only support 720*480 */
- dev->width = width;
- dev->height = height;
- dev->frame_size = width * height * 2;
- dev->field_size = width * height;
- dev->bytesperline = width * 2;
- if (dev->stream_state == STREAM_ON) {
- dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
- ret = au0828_stream_interrupt(dev);
- if (ret != 0) {
- dprintk(1, "error interrupting video stream!\n");
- return ret;
- }
- }
- /* set au0828 interface0 to AS5 here again */
- ret = usb_set_interface(dev->usbdev, 0, 5);
- if (ret < 0) {
- printk(KERN_INFO "Au0828 can't set alt setting to 5!\n");
- return -EBUSY;
- }
- au0828_analog_stream_enable(dev);
- return 0;
- }
- static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc);
- if (qc->type)
- return 0;
- else
- return -EINVAL;
- }
- static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *cap)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- strlcpy(cap->driver, "au0828", sizeof(cap->driver));
- strlcpy(cap->card, dev->board.name, sizeof(cap->card));
- strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info));
- cap->version = AU0828_VERSION_CODE;
- /*set the device capabilities */
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
- #ifdef VBI_IS_WORKING
- V4L2_CAP_VBI_CAPTURE |
- #endif
- V4L2_CAP_AUDIO |
- V4L2_CAP_READWRITE |
- V4L2_CAP_STREAMING |
- V4L2_CAP_TUNER;
- return 0;
- }
- static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
- {
- if (f->index)
- return -EINVAL;
- f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- strcpy(f->description, "Packed YUV2");
- f->flags = 0;
- f->pixelformat = V4L2_PIX_FMT_UYVY;
- return 0;
- }
- static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- f->fmt.pix.width = dev->width;
- f->fmt.pix.height = dev->height;
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
- f->fmt.pix.bytesperline = dev->bytesperline;
- f->fmt.pix.sizeimage = dev->frame_size;
- f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
- f->fmt.pix.field = V4L2_FIELD_INTERLACED;
- return 0;
- }
- static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
- }
- static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- if (videobuf_queue_is_busy(&fh->vb_vidq)) {
- printk(KERN_INFO "%s queue busy\n", __func__);
- rc = -EBUSY;
- goto out;
- }
- if (dev->stream_on && !fh->stream_on) {
- printk(KERN_INFO "%s device in use by another fh\n", __func__);
- rc = -EBUSY;
- goto out;
- }
- return au0828_set_format(dev, VIDIOC_S_FMT, f);
- out:
- return rc;
- }
- static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- /* FIXME: when we support something other than NTSC, we are going to
- have to make the au0828 bridge adjust the size of its capture
- buffer, which is currently hardcoded at 720x480 */
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, *norm);
- return 0;
- }
- static int vidioc_enum_input(struct file *file, void *priv,
- struct v4l2_input *input)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- unsigned int tmp;
- static const char *inames[] = {
- [AU0828_VMUX_UNDEFINED] = "Undefined",
- [AU0828_VMUX_COMPOSITE] = "Composite",
- [AU0828_VMUX_SVIDEO] = "S-Video",
- [AU0828_VMUX_CABLE] = "Cable TV",
- [AU0828_VMUX_TELEVISION] = "Television",
- [AU0828_VMUX_DVB] = "DVB",
- [AU0828_VMUX_DEBUG] = "tv debug"
- };
- tmp = input->index;
- if (tmp > AU0828_MAX_INPUT)
- return -EINVAL;
- if (AUVI_INPUT(tmp).type == 0)
- return -EINVAL;
- input->index = tmp;
- strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
- if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
- (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE))
- input->type |= V4L2_INPUT_TYPE_TUNER;
- else
- input->type |= V4L2_INPUT_TYPE_CAMERA;
- input->std = dev->vdev->tvnorms;
- return 0;
- }
- static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- *i = dev->ctrl_input;
- return 0;
- }
- static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int i;
- dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
- index);
- if (index >= AU0828_MAX_INPUT)
- return -EINVAL;
- if (AUVI_INPUT(index).type == 0)
- return -EINVAL;
- dev->ctrl_input = index;
- switch (AUVI_INPUT(index).type) {
- case AU0828_VMUX_SVIDEO:
- dev->input_type = AU0828_VMUX_SVIDEO;
- break;
- case AU0828_VMUX_COMPOSITE:
- dev->input_type = AU0828_VMUX_COMPOSITE;
- break;
- case AU0828_VMUX_TELEVISION:
- dev->input_type = AU0828_VMUX_TELEVISION;
- break;
- default:
- dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n",
- AUVI_INPUT(index).type);
- break;
- }
- v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
- AUVI_INPUT(index).vmux, 0, 0);
- for (i = 0; i < AU0828_MAX_INPUT; i++) {
- int enable = 0;
- if (AUVI_INPUT(i).audio_setup == NULL)
- continue;
- if (i == index)
- enable = 1;
- else
- enable = 0;
- if (enable) {
- (AUVI_INPUT(i).audio_setup)(dev, enable);
- } else {
- /* Make sure we leave it turned on if some
- other input is routed to this callback */
- if ((AUVI_INPUT(i).audio_setup) !=
- ((AUVI_INPUT(index).audio_setup))) {
- (AUVI_INPUT(i).audio_setup)(dev, enable);
- }
- }
- }
- v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
- AUVI_INPUT(index).amux, 0, 0);
- return 0;
- }
- static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- unsigned int index = a->index;
- if (a->index > 1)
- return -EINVAL;
- index = dev->ctrl_ainput;
- if (index == 0)
- strcpy(a->name, "Television");
- else
- strcpy(a->name, "Line in");
- a->capability = V4L2_AUDCAP_STEREO;
- a->index = index;
- return 0;
- }
- static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- if (a->index != dev->ctrl_ainput)
- return -EINVAL;
- return 0;
- }
- static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl);
- return 0;
- }
- static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl);
- return 0;
- }
- static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- if (t->index != 0)
- return -EINVAL;
- strcpy(t->name, "Auvitek tuner");
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
- return 0;
- }
- static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *t)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- if (t->index != 0)
- return -EINVAL;
- t->type = V4L2_TUNER_ANALOG_TV;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
- dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
- t->afc);
- return 0;
- }
- static int vidioc_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *freq)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- freq->type = V4L2_TUNER_ANALOG_TV;
- freq->frequency = dev->ctrl_freq;
- return 0;
- }
- static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *freq)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- if (freq->tuner != 0)
- return -EINVAL;
- if (freq->type != V4L2_TUNER_ANALOG_TV)
- return -EINVAL;
- dev->ctrl_freq = freq->frequency;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
- au0828_analog_stream_reset(dev);
- return 0;
- }
- static int vidioc_g_chip_ident(struct file *file, void *priv,
- struct v4l2_dbg_chip_ident *chip)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- chip->ident = V4L2_IDENT_NONE;
- chip->revision = 0;
- if (v4l2_chip_match_host(&chip->match)) {
- chip->ident = V4L2_IDENT_AU0828;
- return 0;
- }
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
- if (chip->ident == V4L2_IDENT_NONE)
- return -EINVAL;
- return 0;
- }
- static int vidioc_cropcap(struct file *file, void *priv,
- struct v4l2_cropcap *cc)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- cc->bounds.left = 0;
- cc->bounds.top = 0;
- cc->bounds.width = dev->width;
- cc->bounds.height = dev->height;
- cc->defrect = cc->bounds;
- cc->pixelaspect.numerator = 54;
- cc->pixelaspect.denominator = 59;
- return 0;
- }
- static int vidioc_streamon(struct file *file, void *priv,
- enum v4l2_buf_type type)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- au0828_analog_stream_enable(dev);
- v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
- }
- mutex_lock(&dev->lock);
- rc = res_get(fh);
- if (likely(rc >= 0))
- rc = videobuf_streamon(&fh->vb_vidq);
- mutex_unlock(&dev->lock);
- return rc;
- }
- static int vidioc_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type type)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int i;
- int ret;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- if (type != fh->type)
- return -EINVAL;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
- ret = au0828_stream_interrupt(dev);
- if (ret != 0)
- return ret;
- }
- for (i = 0; i < AU0828_MAX_INPUT; i++) {
- if (AUVI_INPUT(i).audio_setup == NULL)
- continue;
- (AUVI_INPUT(i).audio_setup)(dev, 0);
- }
- mutex_lock(&dev->lock);
- videobuf_streamoff(&fh->vb_vidq);
- res_free(fh);
- mutex_unlock(&dev->lock);
- return 0;
- }
- #ifdef CONFIG_VIDEO_ADV_DEBUG
- static int vidioc_g_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- switch (reg->match.type) {
- case V4L2_CHIP_MATCH_I2C_DRIVER:
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
- return 0;
- default:
- return -EINVAL;
- }
- }
- static int vidioc_s_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- switch (reg->match.type) {
- case V4L2_CHIP_MATCH_I2C_DRIVER:
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
- return 0;
- default:
- return -EINVAL;
- }
- return 0;
- }
- #endif
- static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *rb)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- return videobuf_reqbufs(&fh->vb_vidq, rb);
- }
- static int vidioc_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *b)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- return videobuf_querybuf(&fh->vb_vidq, b);
- }
- static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- return videobuf_qbuf(&fh->vb_vidq, b);
- }
- static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
- {
- struct au0828_fh *fh = priv;
- struct au0828_dev *dev = fh->dev;
- int rc;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
- /* Workaround for a bug in the au0828 hardware design that sometimes
- results in the colorspace being inverted */
- if (dev->greenscreen_detected == 1) {
- dprintk(1, "Detected green frame. Resetting stream...\n");
- au0828_analog_stream_reset(dev);
- dev->greenscreen_detected = 0;
- }
- return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
- }
- #ifdef CONFIG_VIDEO_V4L1_COMPAT
- static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
- {
- struct au0828_fh *fh = priv;
- return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
- }
- #endif
- static struct v4l2_file_operations au0828_v4l_fops = {
- .owner = THIS_MODULE,
- .open = au0828_v4l2_open,
- .release = au0828_v4l2_close,
- .read = au0828_v4l2_read,
- .poll = au0828_v4l2_poll,
- .mmap = au0828_v4l2_mmap,
- .ioctl = video_ioctl2,
- };
- static const struct v4l2_ioctl_ops video_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- #ifdef VBI_IS_WORKING
- .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
- .vidioc_try_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
- .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
- #endif
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_cropcap = vidioc_cropcap,
- #ifdef VBI_IS_WORKING
- .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
- .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
- .vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
- #endif
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_s_std = vidioc_s_std,
- .vidioc_enum_input = vidioc_enum_input,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
- .vidioc_g_tuner = vidioc_g_tuner,
- .vidioc_s_tuner = vidioc_s_tuner,
- .vidioc_g_frequency = vidioc_g_frequency,
- .vidioc_s_frequency = vidioc_s_frequency,
- #ifdef CONFIG_VIDEO_ADV_DEBUG
- .vidioc_g_register = vidioc_g_register,
- .vidioc_s_register = vidioc_s_register,
- #endif
- .vidioc_g_chip_ident = vidioc_g_chip_ident,
- #ifdef CONFIG_VIDEO_V4L1_COMPAT
- .vidiocgmbuf = vidiocgmbuf,
- #endif
- };
- static const struct video_device au0828_video_template = {
- .fops = &au0828_v4l_fops,
- .release = video_device_release,
- .ioctl_ops = &video_ioctl_ops,
- .minor = -1,
- .tvnorms = V4L2_STD_NTSC_M,
- .current_norm = V4L2_STD_NTSC_M,
- };
- /**************************************************************************/
- int au0828_analog_register(struct au0828_dev *dev,
- struct usb_interface *interface)
- {
- int retval = -ENOMEM;
- struct usb_host_interface *iface_desc;
- struct usb_endpoint_descriptor *endpoint;
- int i;
- dprintk(1, "au0828_analog_register called!\n");
- /* set au0828 usb interface0 to as5 */
- retval = usb_set_interface(dev->usbdev,
- interface->cur_altsetting->desc.bInterfaceNumber, 5);
- if (retval != 0) {
- printk(KERN_INFO "Failure setting usb interface0 to as5\n");
- return retval;
- }
- /* Figure out which endpoint has the isoc interface */
- iface_desc = interface->cur_altsetting;
- for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
- endpoint = &iface_desc->endpoint[i].desc;
- if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
- == USB_DIR_IN) &&
- ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- == USB_ENDPOINT_XFER_ISOC)) {
- /* we find our isoc in endpoint */
- u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
- dev->max_pkt_size = (tmp & 0x07ff) *
- (((tmp & 0x1800) >> 11) + 1);
- dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
- }
- }
- if (!(dev->isoc_in_endpointaddr)) {
- printk(KERN_INFO "Could not locate isoc endpoint\n");
- kfree(dev);
- return -ENODEV;
- }
- init_waitqueue_head(&dev->open);
- spin_lock_init(&dev->slock);
- mutex_init(&dev->lock);
- INIT_LIST_HEAD(&dev->vidq.active);
- INIT_LIST_HEAD(&dev->vidq.queued);
- dev->width = NTSC_STD_W;
- dev->height = NTSC_STD_H;
- dev->field_size = dev->width * dev->height;
- dev->frame_size = dev->field_size << 1;
- dev->bytesperline = dev->width << 1;
- dev->ctrl_ainput = 0;
- /* allocate and fill v4l2 video struct */
- dev->vdev = video_device_alloc();
- if (NULL == dev->vdev) {
- dprintk(1, "Can't allocate video_device.\n");
- return -ENOMEM;
- }
- #ifdef VBI_IS_WORKING
- dev->vbi_dev = video_device_alloc();
- if (NULL == dev->vbi_dev) {
- dprintk(1, "Can't allocate vbi_device.\n");
- kfree(dev->vdev);
- return -ENOMEM;
- }
- #endif
- /* Fill the video capture device struct */
- *dev->vdev = au0828_video_template;
- dev->vdev->parent = &dev->usbdev->dev;
- strcpy(dev->vdev->name, "au0828a video");
- #ifdef VBI_IS_WORKING
- /* Setup the VBI device */
- *dev->vbi_dev = au0828_video_template;
- dev->vbi_dev->parent = &dev->usbdev->dev;
- strcpy(dev->vbi_dev->name, "au0828a vbi");
- #endif
- list_add_tail(&dev->au0828list, &au0828_devlist);
- /* Register the v4l2 device */
- retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
- if (retval != 0) {
- dprintk(1, "unable to register video device (error = %d).\n",
- retval);
- list_del(&dev->au0828list);
- video_device_release(dev->vdev);
- return -ENODEV;
- }
- #ifdef VBI_IS_WORKING
- /* Register the vbi device */
- retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
- if (retval != 0) {
- dprintk(1, "unable to register vbi device (error = %d).\n",
- retval);
- list_del(&dev->au0828list);
- video_device_release(dev->vbi_dev);
- video_device_release(dev->vdev);
- return -ENODEV;
- }
- #endif
- dprintk(1, "%s completed!\n", __func__);
- return 0;
- }
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