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Diffstat (limited to 'drivers/media/usb/au0828/au0828-video.c')
-rw-r--r--drivers/media/usb/au0828/au0828-video.c1863
1 files changed, 1863 insertions, 0 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
new file mode 100644
index 000000000..1a362a041
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -0,0 +1,1863 @@
+/*
+ * 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:
+ *
+ * The hardware scaler supported is unimplemented
+ * AC97 audio support is unimplemented (only i2s audio mode)
+ *
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/tuner.h>
+#include "au0828-reg.h"
+
+static DEFINE_MUTEX(au0828_sysfs_lock);
+
+/* ------------------------------------------------------------------
+ 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) { \
+ pr_info("au0828 %s :"fmt, \
+ __func__ , ##arg); \
+ } \
+ } while (0)
+
+static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
+{
+ if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
+ dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
+}
+
+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) {
+ pr_info("v4l2 ioctl: device not present\n");
+ return -ENODEV;
+ }
+
+ if (dev->dev_state & DEV_MISCONFIGURED) {
+ pr_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);
+ unsigned long flags = 0;
+ int 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_irqsave(&dev->slock, flags);
+ dev->isoc_ctl.isoc_copy(dev, urb);
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ /* 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);
+ }
+ dev->stream_state = STREAM_ON;
+}
+
+/*
+ * Stop and Deallocate URBs
+ */
+static 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_free_coherent(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;
+
+ dev->stream_state = STREAM_OFF;
+}
+
+/*
+ * Allocate URBs and start IRQ
+ */
+static 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");
+
+ 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_alloc_coherent(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;
+ }
+ }
+
+ /* 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)
+{
+ struct vb2_buffer *vb = &buf->vb;
+ struct vb2_queue *q = vb->vb2_queue;
+
+ /* Advice that buffer was filled */
+ au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ vb->v4l2_buf.sequence = dev->frame_count++;
+ else
+ vb->v4l2_buf.sequence = dev->vbi_frame_count++;
+
+ vb->v4l2_buf.field = V4L2_FIELD_INTERLACED;
+ v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
+ vb2_buffer_done(vb, VB2_BUF_STATE_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 (len == 0)
+ return;
+
+ if (dma_q->pos + len > buf->length)
+ len = buf->length - 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->length) {
+ au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->length));
+ remain = (char *)outp + buf->length - (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->length) {
+ au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->length));
+ lencopy = remain = (char *)outp + buf->length -
+ (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, list);
+ /* Cleans up buffer - Useful for testing for frame/URB loss */
+ list_del(&(*buf)->list);
+ dma_q->pos = 0;
+ (*buf)->vb_buf = (*buf)->mem;
+ dev->isoc_ctl.buf = *buf;
+
+ return;
+}
+
+static void au0828_copy_vbi(struct au0828_dev *dev,
+ struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer *buf,
+ unsigned char *p,
+ unsigned char *outp, unsigned long len)
+{
+ unsigned char *startwrite, *startread;
+ int bytesperline;
+ int i, j = 0;
+
+ if (dev == NULL) {
+ au0828_isocdbg("dev is null\n");
+ return;
+ }
+
+ if (dma_q == NULL) {
+ au0828_isocdbg("dma_q is null\n");
+ return;
+ }
+ if (buf == NULL)
+ return;
+ if (p == NULL) {
+ au0828_isocdbg("p is null\n");
+ return;
+ }
+ if (outp == NULL) {
+ au0828_isocdbg("outp is null\n");
+ return;
+ }
+
+ bytesperline = dev->vbi_width;
+
+ if (dma_q->pos + len > buf->length)
+ len = buf->length - dma_q->pos;
+
+ startread = p;
+ startwrite = outp + (dma_q->pos / 2);
+
+ /* Make sure the bottom field populates the second half of the frame */
+ if (buf->top_field == 0)
+ startwrite += bytesperline * dev->vbi_height;
+
+ for (i = 0; i < len; i += 2)
+ startwrite[j++] = startread[i+1];
+
+ dma_q->pos += len;
+}
+
+
+/*
+ * video-buf generic routine to get the next available VBI buffer
+ */
+static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer **buf)
+{
+ struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
+
+ if (list_empty(&dma_q->active)) {
+ au0828_isocdbg("No active queue to serve\n");
+ dev->isoc_ctl.vbi_buf = NULL;
+ *buf = NULL;
+ return;
+ }
+
+ /* Get the next buffer */
+ *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
+ /* Cleans up buffer - Useful for testing for frame/URB loss */
+ list_del(&(*buf)->list);
+ dma_q->pos = 0;
+ (*buf)->vb_buf = (*buf)->mem;
+ dev->isoc_ctl.vbi_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_buffer *vbi_buf;
+ struct au0828_dmaqueue *dma_q = urb->context;
+ struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
+ unsigned char *outp = NULL;
+ unsigned char *vbioutp = NULL;
+ int i, len = 0, rc = 1;
+ unsigned char *p;
+ unsigned char fbyte;
+ unsigned int vbi_field_size;
+ unsigned int remain, lencopy;
+
+ 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 = vb2_plane_vaddr(&buf->vb, 0);
+
+ vbi_buf = dev->isoc_ctl.vbi_buf;
+ if (vbi_buf != NULL)
+ vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 0);
+
+ 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) {
+ /* VBI */
+ if (vbi_buf != NULL)
+ buffer_filled(dev, vbi_dma_q, vbi_buf);
+ vbi_get_next_buf(vbi_dma_q, &vbi_buf);
+ if (vbi_buf == NULL)
+ vbioutp = NULL;
+ else
+ vbioutp = vb2_plane_vaddr(
+ &vbi_buf->vb, 0);
+
+ /* Video */
+ if (buf != NULL)
+ buffer_filled(dev, dma_q, buf);
+ get_next_buf(dma_q, &buf);
+ if (buf == NULL)
+ outp = NULL;
+ else
+ outp = vb2_plane_vaddr(&buf->vb, 0);
+
+ /* As long as isoc traffic is arriving, keep
+ resetting the timer */
+ if (dev->vid_timeout_running)
+ mod_timer(&dev->vid_timeout,
+ jiffies + (HZ / 10));
+ if (dev->vbi_timeout_running)
+ mod_timer(&dev->vbi_timeout,
+ jiffies + (HZ / 10));
+ }
+
+ if (buf != NULL) {
+ if (fbyte & 0x40)
+ buf->top_field = 1;
+ else
+ buf->top_field = 0;
+ }
+
+ if (vbi_buf != NULL) {
+ if (fbyte & 0x40)
+ vbi_buf->top_field = 1;
+ else
+ vbi_buf->top_field = 0;
+ }
+
+ dev->vbi_read = 0;
+ vbi_dma_q->pos = 0;
+ dma_q->pos = 0;
+ }
+
+ vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
+ if (dev->vbi_read < vbi_field_size) {
+ remain = vbi_field_size - dev->vbi_read;
+ if (len < remain)
+ lencopy = len;
+ else
+ lencopy = remain;
+
+ if (vbi_buf != NULL)
+ au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
+ vbioutp, len);
+
+ len -= lencopy;
+ p += lencopy;
+ dev->vbi_read += lencopy;
+ }
+
+ if (dev->vbi_read >= vbi_field_size && buf != NULL)
+ au0828_copy_video(dev, dma_q, buf, p, outp, len);
+ }
+ return rc;
+}
+
+static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ unsigned long img_size = dev->height * dev->bytesperline;
+ unsigned long size;
+
+ size = fmt ? fmt->fmt.pix.sizeimage : img_size;
+ if (size < img_size)
+ return -EINVAL;
+
+ *nplanes = 1;
+ sizes[0] = size;
+
+ return 0;
+}
+
+static int
+buffer_prepare(struct vb2_buffer *vb)
+{
+ struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+ buf->length = dev->height * dev->bytesperline;
+
+ if (vb2_plane_size(vb, 0) < buf->length) {
+ pr_err("%s data will not fit into plane (%lu < %lu)\n",
+ __func__, vb2_plane_size(vb, 0), buf->length);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(&buf->vb, 0, buf->length);
+ return 0;
+}
+
+static void
+buffer_queue(struct vb2_buffer *vb)
+{
+ struct au0828_buffer *buf = container_of(vb,
+ struct au0828_buffer,
+ vb);
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct au0828_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
+
+ buf->mem = vb2_plane_vaddr(vb, 0);
+ buf->length = vb2_plane_size(vb, 0);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ list_add_tail(&buf->list, &vidq->active);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+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
+ */
+static int au0828_analog_stream_enable(struct au0828_dev *d)
+{
+ struct usb_interface *iface;
+ int ret, h, w;
+
+ dprintk(1, "au0828_analog_stream_enable called\n");
+
+ iface = usb_ifnum_to_if(d->usbdev, 0);
+ if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
+ dprintk(1, "Changing intf#0 to alt 5\n");
+ /* set au0828 interface0 to AS5 here again */
+ ret = usb_set_interface(d->usbdev, 0, 5);
+ if (ret < 0) {
+ pr_info("Au0828 can't set alt setting to 5!\n");
+ return -EBUSY;
+ }
+ }
+
+ h = d->height / 2 + 2;
+ w = d->width * 2;
+
+ 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, w & 0xff);
+ au0828_writereg(d, 0x115, w >> 8);
+ /* set y position */
+ au0828_writereg(d, 0x112, 0x00);
+ au0828_writereg(d, 0x113, 0x00);
+ au0828_writereg(d, 0x116, h & 0xff);
+ au0828_writereg(d, 0x117, h >> 8);
+ au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
+
+ return 0;
+}
+
+static 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;
+}
+
+static 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;
+}
+
+int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ int rc = 0;
+
+ dprintk(1, "au0828_start_analog_streaming called %d\n",
+ dev->streaming_users);
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ dev->frame_count = 0;
+ else
+ dev->vbi_frame_count = 0;
+
+ if (dev->streaming_users == 0) {
+ /* If we were doing ac97 instead of i2s, it would go here...*/
+ au0828_i2s_init(dev);
+ rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
+ AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
+ au0828_isoc_copy);
+ if (rc < 0) {
+ pr_info("au0828_init_isoc failed\n");
+ return rc;
+ }
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video,
+ s_stream, 1);
+ dev->vid_timeout_running = 1;
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+ } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ dev->vbi_timeout_running = 1;
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+ }
+ }
+ dev->streaming_users++;
+ return rc;
+}
+
+static void au0828_stop_streaming(struct vb2_queue *vq)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ struct au0828_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
+
+ dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
+
+ if (dev->streaming_users-- == 1)
+ au0828_uninit_isoc(dev);
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
+ dev->vid_timeout_running = 0;
+ del_timer_sync(&dev->vid_timeout);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ if (dev->isoc_ctl.buf != NULL) {
+ vb2_buffer_done(&dev->isoc_ctl.buf->vb, VB2_BUF_STATE_ERROR);
+ dev->isoc_ctl.buf = NULL;
+ }
+ while (!list_empty(&vidq->active)) {
+ struct au0828_buffer *buf;
+
+ buf = list_entry(vidq->active.next, struct au0828_buffer, list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ list_del(&buf->list);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+void au0828_stop_vbi_streaming(struct vb2_queue *vq)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ struct au0828_dmaqueue *vbiq = &dev->vbiq;
+ unsigned long flags = 0;
+
+ dprintk(1, "au0828_stop_vbi_streaming called %d\n",
+ dev->streaming_users);
+
+ if (dev->streaming_users-- == 1)
+ au0828_uninit_isoc(dev);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ if (dev->isoc_ctl.vbi_buf != NULL) {
+ vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb,
+ VB2_BUF_STATE_ERROR);
+ dev->isoc_ctl.vbi_buf = NULL;
+ }
+ while (!list_empty(&vbiq->active)) {
+ struct au0828_buffer *buf;
+
+ buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ dev->vbi_timeout_running = 0;
+ del_timer_sync(&dev->vbi_timeout);
+}
+
+static struct vb2_ops au0828_video_qops = {
+ .queue_setup = queue_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .start_streaming = au0828_start_analog_streaming,
+ .stop_streaming = au0828_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+/* ------------------------------------------------------------------
+ V4L2 interface
+ ------------------------------------------------------------------*/
+/*
+ * au0828_analog_unregister
+ * unregister v4l2 devices
+ */
+void au0828_analog_unregister(struct au0828_dev *dev)
+{
+ dprintk(1, "au0828_analog_unregister called\n");
+ mutex_lock(&au0828_sysfs_lock);
+ video_unregister_device(&dev->vdev);
+ video_unregister_device(&dev->vbi_dev);
+ mutex_unlock(&au0828_sysfs_lock);
+}
+
+/* This function ensures that video frames continue to be delivered even if
+ the ITU-656 input isn't receiving any data (thereby preventing applications
+ such as tvtime from hanging) */
+static void au0828_vid_buffer_timeout(unsigned long data)
+{
+ struct au0828_dev *dev = (struct au0828_dev *) data;
+ struct au0828_dmaqueue *dma_q = &dev->vidq;
+ struct au0828_buffer *buf;
+ unsigned char *vid_data;
+ unsigned long flags = 0;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ buf = dev->isoc_ctl.buf;
+ if (buf != NULL) {
+ vid_data = vb2_plane_vaddr(&buf->vb, 0);
+ memset(vid_data, 0x00, buf->length); /* Blank green frame */
+ buffer_filled(dev, dma_q, buf);
+ }
+ get_next_buf(dma_q, &buf);
+
+ if (dev->vid_timeout_running == 1)
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static void au0828_vbi_buffer_timeout(unsigned long data)
+{
+ struct au0828_dev *dev = (struct au0828_dev *) data;
+ struct au0828_dmaqueue *dma_q = &dev->vbiq;
+ struct au0828_buffer *buf;
+ unsigned char *vbi_data;
+ unsigned long flags = 0;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ buf = dev->isoc_ctl.vbi_buf;
+ if (buf != NULL) {
+ vbi_data = vb2_plane_vaddr(&buf->vb, 0);
+ memset(vbi_data, 0x00, buf->length);
+ buffer_filled(dev, dma_q, buf);
+ }
+ vbi_get_next_buf(dma_q, &buf);
+
+ if (dev->vbi_timeout_running == 1)
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static int au0828_v4l2_open(struct file *filp)
+{
+ struct au0828_dev *dev = video_drvdata(filp);
+ int ret;
+
+ dprintk(1,
+ "%s called std_set %d dev_state %d stream users %d users %d\n",
+ __func__, dev->std_set_in_tuner_core, dev->dev_state,
+ dev->streaming_users, dev->users);
+
+ if (mutex_lock_interruptible(&dev->lock))
+ return -ERESTARTSYS;
+
+ ret = v4l2_fh_open(filp);
+ if (ret) {
+ au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
+ __func__, ret);
+ mutex_unlock(&dev->lock);
+ return ret;
+ }
+
+ if (dev->users == 0) {
+ au0828_analog_stream_enable(dev);
+ au0828_analog_stream_reset(dev);
+ dev->stream_state = STREAM_OFF;
+ dev->dev_state |= DEV_INITIALIZED;
+ }
+ dev->users++;
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int au0828_v4l2_close(struct file *filp)
+{
+ int ret;
+ struct au0828_dev *dev = video_drvdata(filp);
+ struct video_device *vdev = video_devdata(filp);
+
+ dprintk(1,
+ "%s called std_set %d dev_state %d stream users %d users %d\n",
+ __func__, dev->std_set_in_tuner_core, dev->dev_state,
+ dev->streaming_users, dev->users);
+
+ mutex_lock(&dev->lock);
+ if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
+ /* Cancel timeout thread in case they didn't call streamoff */
+ dev->vid_timeout_running = 0;
+ del_timer_sync(&dev->vid_timeout);
+ } else if (vdev->vfl_type == VFL_TYPE_VBI &&
+ dev->vbi_timeout_running) {
+ /* Cancel timeout thread in case they didn't call streamoff */
+ dev->vbi_timeout_running = 0;
+ del_timer_sync(&dev->vbi_timeout);
+ }
+
+ if (dev->dev_state == DEV_DISCONNECTED)
+ goto end;
+
+ if (dev->users == 1) {
+ /* Save some power by putting tuner to sleep */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
+ dev->std_set_in_tuner_core = 0;
+
+ /* 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)
+ pr_info("Au0828 can't set alternate to 0!\n");
+ }
+end:
+ _vb2_fop_release(filp, NULL);
+ dev->users--;
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+/* Must be called with dev->lock held */
+static void au0828_init_tuner(struct au0828_dev *dev)
+{
+ struct v4l2_frequency f = {
+ .frequency = dev->ctrl_freq,
+ .type = V4L2_TUNER_ANALOG_TV,
+ };
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ if (dev->std_set_in_tuner_core)
+ return;
+ dev->std_set_in_tuner_core = 1;
+ i2c_gate_ctrl(dev, 1);
+ /* If we've never sent the standard in tuner core, do so now.
+ We don't do this at device probe because we don't want to
+ incur the cost of a firmware load */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
+ i2c_gate_ctrl(dev, 0);
+}
+
+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;
+
+ /* 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;
+ format->fmt.pix.priv = 0;
+
+ 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;
+ }
+ }
+
+ au0828_analog_stream_enable(dev);
+
+ return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ strlcpy(cap->driver, "au0828", sizeof(cap->driver));
+ strlcpy(cap->card, dev->board.name, sizeof(cap->card));
+ usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
+
+ /* set the device capabilities */
+ cap->device_caps = V4L2_CAP_AUDIO |
+ V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING |
+ V4L2_CAP_TUNER;
+ if (vdev->vfl_type == VFL_TYPE_GRABBER)
+ cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
+ else
+ cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
+ V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
+ return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ if (f->index)
+ return -EINVAL;
+
+ dprintk(1, "%s called\n", __func__);
+
+ 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_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ 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;
+ f->fmt.pix.priv = 0;
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ 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_dev *dev = video_drvdata(file);
+ int rc;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (vb2_is_busy(&dev->vb_vidq)) {
+ pr_info("%s queue busy\n", __func__);
+ rc = -EBUSY;
+ goto out;
+ }
+
+ rc = 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_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ if (norm == dev->std)
+ return 0;
+
+ if (dev->streaming_users > 0)
+ return -EBUSY;
+
+ dev->std = norm;
+
+ au0828_init_tuner(dev);
+
+ i2c_gate_ctrl(dev, 1);
+
+ /*
+ * FIXME: when we support something other than 60Hz standards,
+ * 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, video, s_std, norm);
+
+ i2c_gate_ctrl(dev, 0);
+
+ return 0;
+}
+
+static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ *norm = dev->std;
+ return 0;
+}
+
+static int vidioc_enum_input(struct file *file, void *priv,
+ struct v4l2_input *input)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ 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"
+ };
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ 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;
+ input->audioset = 1;
+ } else {
+ input->type |= V4L2_INPUT_TYPE_CAMERA;
+ input->audioset = 2;
+ }
+
+ input->std = dev->vdev.tvnorms;
+
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ *i = dev->ctrl_input;
+ return 0;
+}
+
+static void au0828_s_input(struct au0828_dev *dev, int index)
+{
+ int i;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ switch (AUVI_INPUT(index).type) {
+ case AU0828_VMUX_SVIDEO:
+ dev->input_type = AU0828_VMUX_SVIDEO;
+ dev->ctrl_ainput = 1;
+ break;
+ case AU0828_VMUX_COMPOSITE:
+ dev->input_type = AU0828_VMUX_COMPOSITE;
+ dev->ctrl_ainput = 1;
+ break;
+ case AU0828_VMUX_TELEVISION:
+ dev->input_type = AU0828_VMUX_TELEVISION;
+ dev->ctrl_ainput = 0;
+ break;
+ default:
+ dprintk(1, "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);
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ 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;
+ au0828_s_input(dev, index);
+ return 0;
+}
+
+static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ if (a->index > 1)
+ return -EINVAL;
+
+ dprintk(1, "%s called\n", __func__);
+
+ if (a->index == 0)
+ strcpy(a->name, "Television");
+ else
+ strcpy(a->name, "Line in");
+
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ a->index = dev->ctrl_ainput;
+ if (a->index == 0)
+ strcpy(a->name, "Television");
+ else
+ strcpy(a->name, "Line in");
+
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (a->index != dev->ctrl_ainput)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+ return 0;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (t->index != 0)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ strcpy(t->name, "Auvitek tuner");
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
+ i2c_gate_ctrl(dev, 0);
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+ const struct v4l2_tuner *t)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (t->index != 0)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
+ i2c_gate_ctrl(dev, 0);
+
+ 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_dev *dev = video_drvdata(file);
+
+ if (freq->tuner != 0)
+ return -EINVAL;
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+ freq->frequency = dev->ctrl_freq;
+ return 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ const struct v4l2_frequency *freq)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ struct v4l2_frequency new_freq = *freq;
+
+ if (freq->tuner != 0)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
+ /* Get the actual set (and possibly clamped) frequency */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
+ dev->ctrl_freq = new_freq.frequency;
+
+ i2c_gate_ctrl(dev, 0);
+
+ au0828_analog_stream_reset(dev);
+
+ return 0;
+}
+
+
+/* RAW VBI ioctls */
+
+static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *format)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ format->fmt.vbi.samples_per_line = dev->vbi_width;
+ format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+ format->fmt.vbi.offset = 0;
+ format->fmt.vbi.flags = 0;
+ format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
+
+ format->fmt.vbi.count[0] = dev->vbi_height;
+ format->fmt.vbi.count[1] = dev->vbi_height;
+ format->fmt.vbi.start[0] = 21;
+ format->fmt.vbi.start[1] = 284;
+ memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
+
+ return 0;
+}
+
+static int vidioc_cropcap(struct file *file, void *priv,
+ struct v4l2_cropcap *cc)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ 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;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ reg->val = au0828_read(dev, reg->reg);
+ reg->size = 1;
+ return 0;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+ const struct v4l2_dbg_register *reg)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ return au0828_writereg(dev, reg->reg, reg->val);
+}
+#endif
+
+static int vidioc_log_status(struct file *file, void *fh)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ dprintk(1, "%s called\n", __func__);
+
+ v4l2_ctrl_log_status(file, fh);
+ v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
+ return 0;
+}
+
+void au0828_v4l2_suspend(struct au0828_dev *dev)
+{
+ struct urb *urb;
+ int i;
+
+ pr_info("stopping V4L2\n");
+
+ if (dev->stream_state == STREAM_ON) {
+ pr_info("stopping V4L2 active URBs\n");
+ au0828_analog_stream_disable(dev);
+ /* stop urbs */
+ 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->vid_timeout_running)
+ del_timer_sync(&dev->vid_timeout);
+ if (dev->vbi_timeout_running)
+ del_timer_sync(&dev->vbi_timeout);
+}
+
+void au0828_v4l2_resume(struct au0828_dev *dev)
+{
+ int i, rc;
+
+ pr_info("restarting V4L2\n");
+
+ if (dev->stream_state == STREAM_ON) {
+ au0828_stream_interrupt(dev);
+ au0828_init_tuner(dev);
+ }
+
+ if (dev->vid_timeout_running)
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+ if (dev->vbi_timeout_running)
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+
+ /* If we were doing ac97 instead of i2s, it would go here...*/
+ au0828_i2s_init(dev);
+
+ au0828_analog_stream_enable(dev);
+
+ if (!(dev->stream_state == STREAM_ON)) {
+ au0828_analog_stream_reset(dev);
+ /* submit urbs */
+ 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);
+ }
+ }
+ }
+}
+
+static struct v4l2_file_operations au0828_v4l_fops = {
+ .owner = THIS_MODULE,
+ .open = au0828_v4l2_open,
+ .release = au0828_v4l2_close,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+ .unlocked_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,
+ .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_enumaudio = vidioc_enumaudio,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_cropcap = vidioc_cropcap,
+
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_g_std = vidioc_g_std,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_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_log_status = vidioc_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct video_device au0828_video_template = {
+ .fops = &au0828_v4l_fops,
+ .release = video_device_release_empty,
+ .ioctl_ops = &video_ioctl_ops,
+ .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
+};
+
+static int au0828_vb2_setup(struct au0828_dev *dev)
+{
+ int rc;
+ struct vb2_queue *q;
+
+ /* Setup Videobuf2 for Video capture */
+ q = &dev->vb_vidq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct au0828_buffer);
+ q->ops = &au0828_video_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ /* Setup Videobuf2 for VBI capture */
+ q = &dev->vb_vbiq;
+ q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct au0828_buffer);
+ q->ops = &au0828_vbi_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ return 0;
+}
+
+/**************************************************************************/
+
+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, ret;
+
+ dprintk(1, "au0828_analog_register called for intf#%d!\n",
+ interface->cur_altsetting->desc.bInterfaceNumber);
+
+ /* set au0828 usb interface0 to as5 */
+ retval = usb_set_interface(dev->usbdev,
+ interface->cur_altsetting->desc.bInterfaceNumber, 5);
+ if (retval != 0) {
+ pr_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;
+ dprintk(1,
+ "Found isoc endpoint 0x%02x, max size = %d\n",
+ dev->isoc_in_endpointaddr, dev->max_pkt_size);
+ }
+ }
+ if (!(dev->isoc_in_endpointaddr)) {
+ pr_info("Could not locate isoc endpoint\n");
+ return -ENODEV;
+ }
+
+ init_waitqueue_head(&dev->open);
+ spin_lock_init(&dev->slock);
+
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->vidq.active);
+ INIT_LIST_HEAD(&dev->vbiq.active);
+
+ setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
+ (unsigned long)dev);
+ setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
+ (unsigned long)dev);
+
+ 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->vbi_width = 720;
+ dev->vbi_height = 1;
+ dev->ctrl_ainput = 0;
+ dev->ctrl_freq = 960;
+ dev->std = V4L2_STD_NTSC_M;
+ au0828_s_input(dev, 0);
+
+ mutex_init(&dev->vb_queue_lock);
+ mutex_init(&dev->vb_vbi_queue_lock);
+
+ /* Fill the video capture device struct */
+ dev->vdev = au0828_video_template;
+ dev->vdev.v4l2_dev = &dev->v4l2_dev;
+ dev->vdev.lock = &dev->lock;
+ dev->vdev.queue = &dev->vb_vidq;
+ dev->vdev.queue->lock = &dev->vb_queue_lock;
+ strcpy(dev->vdev.name, "au0828a video");
+
+ /* Setup the VBI device */
+ dev->vbi_dev = au0828_video_template;
+ dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
+ dev->vbi_dev.lock = &dev->lock;
+ dev->vbi_dev.queue = &dev->vb_vbiq;
+ dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
+ strcpy(dev->vbi_dev.name, "au0828a vbi");
+
+ /* initialize videobuf2 stuff */
+ retval = au0828_vb2_setup(dev);
+ if (retval != 0) {
+ dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
+ retval);
+ return -ENODEV;
+ }
+
+ /* Register the v4l2 device */
+ video_set_drvdata(&dev->vdev, dev);
+ retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
+ if (retval != 0) {
+ dprintk(1, "unable to register video device (error = %d).\n",
+ retval);
+ ret = -ENODEV;
+ goto err_reg_vdev;
+ }
+
+ /* Register the vbi device */
+ video_set_drvdata(&dev->vbi_dev, dev);
+ 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);
+ ret = -ENODEV;
+ goto err_reg_vbi_dev;
+ }
+
+ dprintk(1, "%s completed!\n", __func__);
+
+ return 0;
+
+err_reg_vbi_dev:
+ video_unregister_device(&dev->vdev);
+err_reg_vdev:
+ vb2_queue_release(&dev->vb_vidq);
+ vb2_queue_release(&dev->vb_vbiq);
+ return ret;
+}
+