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authorHans Verkuil <hverkuil@xs4all.nl>2008-07-17 19:26:45 +0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-07-20 14:28:07 +0400
commitca130eef2ca185739a440b893e69fe36038b87c9 (patch)
treee35b288f2a6c1ba816e0ba524ca8966cbab9d147 /drivers/media/video/cx25840
parentcb5aa1c62df81ba2cdbae7f7ce469b231d43aba6 (diff)
downloadlinux-ca130eef2ca185739a440b893e69fe36038b87c9.tar.xz
V4L/DVB (8377): ivtv/cx18: ensure the default control values are correct
For several MPEG controls and the volume control the default as returned by VIDIOC_QUERYCTRL was incorrect and did not match the actual initial value. This is now fixed for cx18 and ivtv. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/cx25840')
-rw-r--r--drivers/media/video/cx25840/cx25840-core.c4
-rw-r--r--drivers/media/video/cx25840/cx25840-core.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index 120c498cb60c..e7bf4f4c1319 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -1204,6 +1204,8 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
switch (qc->id) {
case V4L2_CID_AUDIO_VOLUME:
+ return v4l2_ctrl_query_fill(qc, 0, 65535,
+ 65535 / 100, state->default_volume);
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
@@ -1411,6 +1413,8 @@ static int cx25840_probe(struct i2c_client *client,
state->pvr150_workaround = 0;
state->audmode = V4L2_TUNER_MODE_LANG1;
state->unmute_volume = -1;
+ state->default_volume = 228 - cx25840_read(client, 0x8d4);
+ state->default_volume = ((state->default_volume / 2) + 23) << 9;
state->vbi_line_offset = 8;
state->id = id;
state->rev = device_id;
diff --git a/drivers/media/video/cx25840/cx25840-core.h b/drivers/media/video/cx25840/cx25840-core.h
index 27d8e52cd67e..72916ba975a8 100644
--- a/drivers/media/video/cx25840/cx25840-core.h
+++ b/drivers/media/video/cx25840/cx25840-core.h
@@ -44,6 +44,7 @@ struct cx25840_state {
u32 audclk_freq;
int audmode;
int unmute_volume; /* -1 if not muted */
+ int default_volume;
int vbi_line_offset;
u32 id;
u32 rev;