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path: root/drivers/media/pci/saa7134/saa7134-empress.c
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Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-empress.c')
-rw-r--r--drivers/media/pci/saa7134/saa7134-empress.c187
1 files changed, 69 insertions, 118 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-empress.c b/drivers/media/pci/saa7134/saa7134-empress.c
index 0a9047e754b9..e65c760e4e8b 100644
--- a/drivers/media/pci/saa7134/saa7134-empress.c
+++ b/drivers/media/pci/saa7134/saa7134-empress.c
@@ -48,21 +48,16 @@ MODULE_PARM_DESC(debug,"enable debug messages");
/* ------------------------------------------------------------------ */
-static void ts_reset_encoder(struct saa7134_dev* dev)
-{
- if (!dev->empress_started)
- return;
-
- saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
- msleep(10);
- saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
- msleep(100);
- dev->empress_started = 0;
-}
-
-static int ts_init_encoder(struct saa7134_dev* dev)
+static int start_streaming(struct vb2_queue *vq, unsigned int count)
{
+ struct saa7134_dmaqueue *dmaq = vq->drv_priv;
+ struct saa7134_dev *dev = dmaq->dev;
u32 leading_null_bytes = 0;
+ int err;
+
+ err = saa7134_ts_start_streaming(vq, count);
+ if (err)
+ return err;
/* If more cards start to need this, then this
should probably be added to the card definitions. */
@@ -73,97 +68,43 @@ static int ts_init_encoder(struct saa7134_dev* dev)
leading_null_bytes = 1;
break;
}
- ts_reset_encoder(dev);
saa_call_all(dev, core, init, leading_null_bytes);
- dev->empress_started = 1;
- return 0;
-}
-
-/* ------------------------------------------------------------------ */
-
-static int ts_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7134_dev *dev = video_drvdata(file);
- struct saa7134_fh *fh;
-
- /* allocate + initialize per filehandle data */
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (NULL == fh)
- return -ENOMEM;
-
- v4l2_fh_init(&fh->fh, vdev);
- file->private_data = fh;
- fh->is_empress = true;
- v4l2_fh_add(&fh->fh);
-
/* Unmute audio */
saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
- saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
-
- return 0;
-}
-
-static int ts_release(struct file *file)
-{
- struct saa7134_dev *dev = video_drvdata(file);
- struct saa7134_fh *fh = file->private_data;
-
- if (res_check(fh, RESOURCE_EMPRESS)) {
- videobuf_stop(&dev->empress_tsq);
- videobuf_mmap_free(&dev->empress_tsq);
-
- /* stop the encoder */
- ts_reset_encoder(dev);
-
- /* Mute audio */
- saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
- saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
- }
-
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
+ saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
+ dev->empress_started = 1;
return 0;
}
-static ssize_t
-ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
+static void stop_streaming(struct vb2_queue *vq)
{
- struct saa7134_dev *dev = video_drvdata(file);
+ struct saa7134_dmaqueue *dmaq = vq->drv_priv;
+ struct saa7134_dev *dev = dmaq->dev;
- if (res_locked(dev, RESOURCE_EMPRESS))
- return -EBUSY;
- if (!dev->empress_started)
- ts_init_encoder(dev);
-
- return videobuf_read_stream(&dev->empress_tsq,
- data, count, ppos, 0,
- file->f_flags & O_NONBLOCK);
-}
-
-static unsigned int
-ts_poll(struct file *file, struct poll_table_struct *wait)
-{
- unsigned long req_events = poll_requested_events(wait);
- struct saa7134_dev *dev = video_drvdata(file);
- struct saa7134_fh *fh = file->private_data;
- unsigned int rc = 0;
-
- if (v4l2_event_pending(&fh->fh))
- rc = POLLPRI;
- else if (req_events & POLLPRI)
- poll_wait(file, &fh->fh.wait, wait);
- return rc | videobuf_poll_stream(file, &dev->empress_tsq, wait);
+ saa7134_ts_stop_streaming(vq);
+ saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
+ msleep(20);
+ saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
+ msleep(100);
+ /* Mute audio */
+ saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
+ saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
+ dev->empress_started = 0;
}
+static struct vb2_ops saa7134_empress_qops = {
+ .queue_setup = saa7134_ts_queue_setup,
+ .buf_init = saa7134_ts_buffer_init,
+ .buf_prepare = saa7134_ts_buffer_prepare,
+ .buf_finish = saa7134_ts_buffer_finish,
+ .buf_queue = saa7134_vb2_buffer_queue,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .start_streaming = start_streaming,
+ .stop_streaming = stop_streaming,
+};
-static int
-ts_mmap(struct file *file, struct vm_area_struct * vma)
-{
- struct saa7134_dev *dev = video_drvdata(file);
-
- return videobuf_mmap_mapper(&dev->empress_tsq, vma);
-}
+/* ------------------------------------------------------------------ */
static int empress_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
@@ -233,11 +174,11 @@ static int empress_try_fmt_vid_cap(struct file *file, void *priv,
static const struct v4l2_file_operations ts_fops =
{
.owner = THIS_MODULE,
- .open = ts_open,
- .release = ts_release,
- .read = ts_read,
- .poll = ts_poll,
- .mmap = ts_mmap,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
.ioctl = video_ioctl2,
};
@@ -247,12 +188,12 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
.vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap,
- .vidioc_reqbufs = saa7134_reqbufs,
- .vidioc_querybuf = saa7134_querybuf,
- .vidioc_qbuf = saa7134_qbuf,
- .vidioc_dqbuf = saa7134_dqbuf,
- .vidioc_streamon = saa7134_streamon,
- .vidioc_streamoff = saa7134_streamoff,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_frequency = saa7134_g_frequency,
.vidioc_s_frequency = saa7134_s_frequency,
.vidioc_g_tuner = saa7134_g_tuner,
@@ -262,6 +203,7 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
.vidioc_s_input = saa7134_s_input,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
+ .vidioc_querystd = saa7134_querystd,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
@@ -314,6 +256,7 @@ static bool empress_ctrl_filter(const struct v4l2_ctrl *ctrl)
static int empress_init(struct saa7134_dev *dev)
{
struct v4l2_ctrl_handler *hdl = &dev->empress_ctrl_handler;
+ struct vb2_queue *q;
int err;
dprintk("%s: %s\n",dev->name,__func__);
@@ -323,6 +266,7 @@ static int empress_init(struct saa7134_dev *dev)
*(dev->empress_dev) = saa7134_empress_template;
dev->empress_dev->v4l2_dev = &dev->v4l2_dev;
dev->empress_dev->release = video_device_release;
+ dev->empress_dev->lock = &dev->lock;
snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name),
"%s empress (%s)", dev->name,
saa7134_boards[dev->board].name);
@@ -339,6 +283,26 @@ static int empress_init(struct saa7134_dev *dev)
INIT_WORK(&dev->empress_workqueue, empress_signal_update);
+ q = &dev->empress_vbq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ /*
+ * Do not add VB2_USERPTR: the saa7134 DMA engine cannot handle
+ * transfers that do not start at the beginning of a page. A USERPTR
+ * can start anywhere in a page, so USERPTR support is a no-go.
+ */
+ q->io_modes = VB2_MMAP | VB2_READ;
+ q->drv_priv = &dev->ts_q;
+ q->ops = &saa7134_empress_qops;
+ q->gfp_flags = GFP_DMA32;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->buf_struct_size = sizeof(struct saa7134_buf);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &dev->lock;
+ err = vb2_queue_init(q);
+ if (err)
+ return err;
+ dev->empress_dev->queue = q;
+
video_set_drvdata(dev->empress_dev, dev);
err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER,
empress_nr[dev->nr]);
@@ -352,13 +316,6 @@ static int empress_init(struct saa7134_dev *dev)
printk(KERN_INFO "%s: registered device %s [mpeg]\n",
dev->name, video_device_node_name(dev->empress_dev));
- videobuf_queue_sg_init(&dev->empress_tsq, &saa7134_ts_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_ALTERNATE,
- sizeof(struct saa7134_buf),
- dev, NULL);
-
empress_signal_update(&dev->empress_workqueue);
return 0;
}
@@ -371,6 +328,7 @@ static int empress_fini(struct saa7134_dev *dev)
return 0;
flush_work(&dev->empress_workqueue);
video_unregister_device(dev->empress_dev);
+ vb2_queue_release(&dev->empress_vbq);
v4l2_ctrl_handler_free(&dev->empress_ctrl_handler);
dev->empress_dev = NULL;
return 0;
@@ -395,10 +353,3 @@ static void __exit empress_unregister(void)
module_init(empress_register);
module_exit(empress_unregister);
-
-/* ----------------------------------------------------------- */
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */