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Subject[PATCH 6/8] media/pci/saa7164-encoder Support for V4L2_CTRL_WHICH_DEF_VAL
Date
This driver does not use the control infrastructure.
Add support for the new field which on structure
v4l2_ext_controls

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
drivers/media/pci/saa7164/saa7164-encoder.c | 55 ++++++++++++++++-------------
1 file changed, 31 insertions(+), 24 deletions(-)

diff --git a/drivers/media/pci/saa7164/saa7164-encoder.c b/drivers/media/pci/saa7164/saa7164-encoder.c
index 4434e0f28c26..e897b83b66dd 100644
--- a/drivers/media/pci/saa7164/saa7164-encoder.c
+++ b/drivers/media/pci/saa7164/saa7164-encoder.c
@@ -531,30 +531,6 @@ static int saa7164_get_ctrl(struct saa7164_port *port,
return 0;
}

-static int vidioc_g_ext_ctrls(struct file *file, void *priv,
- struct v4l2_ext_controls *ctrls)
-{
- struct saa7164_encoder_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- int i, err = 0;
-
- if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
- for (i = 0; i < ctrls->count; i++) {
- struct v4l2_ext_control *ctrl = ctrls->controls + i;
-
- err = saa7164_get_ctrl(port, ctrl);
- if (err) {
- ctrls->error_idx = i;
- break;
- }
- }
- return err;
-
- }
-
- return -EINVAL;
-}
-
static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
{
int ret = -EINVAL;
@@ -884,6 +860,37 @@ static int vidioc_queryctrl(struct file *file, void *priv,
return -EINVAL;
}

+static int vidioc_g_ext_ctrls(struct file *file, void *priv,
+ struct v4l2_ext_controls *ctrls)
+{
+ struct saa7164_encoder_fh *fh = file->private_data;
+ struct saa7164_port *port = fh->port;
+ int i, err = 0;
+
+ if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG &&
+ ctrls->which != V4L2_CTRL_WHICH_DEF_VAL)
+ return -EINVAL;
+
+ for (i = 0; i < ctrls->count; i++) {
+ struct v4l2_ext_control *ctrl = ctrls->controls + i;
+
+ if (ctrls->which == V4L2_CTRL_WHICH_DEF_VAL) {
+ struct v4l2_queryctrl q;
+
+ err = fill_queryctrl(&port->encoder_params, &q);
+ if (!err)
+ ctrl->value = q.default_value;
+ } else
+ err = saa7164_get_ctrl(port, ctrl);
+
+ if (err) {
+ ctrls->error_idx = i;
+ break;
+ }
+ }
+ return err;
+}
+
static int saa7164_encoder_stop_port(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
--
2.5.0


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