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path: root/drivers/media/pci/saa7134/saa7134-video.c
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Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-video.c')
-rw-r--r--drivers/media/pci/saa7134/saa7134-video.c108
1 files changed, 91 insertions, 17 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index a63c1366a64e..ffa39543eb65 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -409,7 +409,8 @@ static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
static void video_mux(struct saa7134_dev *dev, int input)
{
- video_dbg("video input = %d [%s]\n", input, card_in(dev, input).name);
+ video_dbg("video input = %d [%s]\n",
+ input, saa7134_input_name[card_in(dev, input).type]);
dev->ctl_input = input;
set_tvnorm(dev, dev->tvnorm);
saa7134_tvaudio_setinput(dev, &card_in(dev, input));
@@ -478,8 +479,7 @@ void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
{
saa7134_set_decoder(dev);
- if (card_in(dev, dev->ctl_input).tv)
- saa_call_all(dev, video, s_std, dev->tvnorm->id);
+ saa_call_all(dev, video, s_std, dev->tvnorm->id);
/* Set the correct norm for the saa6752hs. This function
does nothing if there is no saa6752hs. */
saa_call_empress(dev, video, s_std, dev->tvnorm->id);
@@ -785,6 +785,63 @@ static int stop_preview(struct saa7134_dev *dev)
return 0;
}
+/*
+ * Media Controller helper functions
+ */
+
+static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device *mdev = dev->media_dev;
+ struct media_entity *source;
+ struct media_link *link, *found_link = NULL;
+ int ret, active_links = 0;
+
+ if (!mdev || !dev->decoder)
+ return 0;
+
+ /*
+ * This will find the tuner that is connected into the decoder.
+ * Technically, this is not 100% correct, as the device may be
+ * using an analog input instead of the tuner. However, as we can't
+ * do DVB streaming while the DMA engine is being used for V4L2,
+ * this should be enough for the actual needs.
+ */
+ list_for_each_entry(link, &dev->decoder->links, list) {
+ if (link->sink->entity == dev->decoder) {
+ found_link = link;
+ if (link->flags & MEDIA_LNK_FL_ENABLED)
+ active_links++;
+ break;
+ }
+ }
+
+ if (active_links == 1 || !found_link)
+ return 0;
+
+ source = found_link->source->entity;
+ list_for_each_entry(link, &source->links, list) {
+ struct media_entity *sink;
+ int flags = 0;
+
+ sink = link->sink->entity;
+
+ if (sink == dev->decoder)
+ flags = MEDIA_LNK_FL_ENABLED;
+
+ ret = media_entity_setup_link(link, flags);
+ if (ret) {
+ pr_err("Couldn't change link %s->%s to %s. Error %d\n",
+ source->name, sink->name,
+ flags ? "enabled" : "disabled",
+ ret);
+ return ret;
+ }
+ }
+#endif
+ return 0;
+}
+
/* ------------------------------------------------------------------ */
static int buffer_activate(struct saa7134_dev *dev,
@@ -924,6 +981,9 @@ static int queue_setup(struct vb2_queue *q,
*nplanes = 1;
sizes[0] = size;
alloc_ctxs[0] = dev->alloc_ctx;
+
+ saa7134_enable_analog_tuner(dev);
+
return 0;
}
@@ -1219,10 +1279,13 @@ static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
f->fmt.pix.height = dev->height;
f->fmt.pix.field = dev->field;
f->fmt.pix.pixelformat = dev->fmt->fourcc;
- f->fmt.pix.bytesperline =
- (f->fmt.pix.width * dev->fmt->depth) >> 3;
+ if (dev->fmt->planar)
+ f->fmt.pix.bytesperline = f->fmt.pix.width;
+ else
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * dev->fmt->depth) / 8;
f->fmt.pix.sizeimage =
- f->fmt.pix.height * f->fmt.pix.bytesperline;
+ (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
@@ -1298,10 +1361,13 @@ static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
if (f->fmt.pix.height > maxh)
f->fmt.pix.height = maxh;
f->fmt.pix.width &= ~0x03;
- f->fmt.pix.bytesperline =
- (f->fmt.pix.width * fmt->depth) >> 3;
+ if (fmt->planar)
+ f->fmt.pix.bytesperline = f->fmt.pix.width;
+ else
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * fmt->depth) / 8;
f->fmt.pix.sizeimage =
- f->fmt.pix.height * f->fmt.pix.bytesperline;
+ (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
@@ -1381,13 +1447,19 @@ int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
n = i->index;
if (n >= SAA7134_INPUT_MAX)
return -EINVAL;
- if (NULL == card_in(dev, i->index).name)
+ if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
return -EINVAL;
i->index = n;
- i->type = V4L2_INPUT_TYPE_CAMERA;
- strcpy(i->name, card_in(dev, n).name);
- if (card_in(dev, n).tv)
+ strcpy(i->name, saa7134_input_name[card_in(dev, n).type]);
+ switch (card_in(dev, n).type) {
+ case SAA7134_INPUT_TV:
+ case SAA7134_INPUT_TV_MONO:
i->type = V4L2_INPUT_TYPE_TUNER;
+ break;
+ default:
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ break;
+ }
if (n == dev->ctl_input) {
int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
@@ -1419,7 +1491,7 @@ int saa7134_s_input(struct file *file, void *priv, unsigned int i)
if (i >= SAA7134_INPUT_MAX)
return -EINVAL;
- if (NULL == card_in(dev, i).name)
+ if (card_in(dev, i).type == SAA7134_NO_INPUT)
return -EINVAL;
video_mux(dev, i);
return 0;
@@ -1656,12 +1728,13 @@ int saa7134_g_tuner(struct file *file, void *priv,
return -EINVAL;
memset(t, 0, sizeof(*t));
for (n = 0; n < SAA7134_INPUT_MAX; n++) {
- if (card_in(dev, n).tv)
+ if (card_in(dev, n).type == SAA7134_INPUT_TV ||
+ card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
break;
}
if (n == SAA7134_INPUT_MAX)
return -EINVAL;
- if (NULL != card_in(dev, n).name) {
+ if (card_in(dev, n).type != SAA7134_NO_INPUT) {
strcpy(t->name, "Television");
t->type = V4L2_TUNER_ANALOG_TV;
saa_call_all(dev, tuner, g_tuner, t);
@@ -1906,6 +1979,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_s_std = saa7134_s_std,
.vidioc_g_std = saa7134_g_std,
.vidioc_querystd = saa7134_querystd,
@@ -2089,7 +2163,7 @@ int saa7134_video_init1(struct saa7134_dev *dev)
* USERPTR support is a no-go unless the application knows about these
* limitations and has special support for this.
*/
- q->io_modes = VB2_MMAP | VB2_READ;
+ q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
if (saa7134_userptr)
q->io_modes |= VB2_USERPTR;
q->drv_priv = &dev->video_q;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.