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authorHans Verkuil <hverkuil@xs4all.nl>2008-07-17 12:26:45 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-07-20 07:28:07 -0300
commitca130eef2ca185739a440b893e69fe36038b87c9 (patch)
treee35b288f2a6c1ba816e0ba524ca8966cbab9d147 /drivers/media/video/cx18
parentcb5aa1c62df81ba2cdbae7f7ce469b231d43aba6 (diff)
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/cx18')
-rw-r--r--drivers/media/video/cx18/cx18-av-core.c5
-rw-r--r--drivers/media/video/cx18/cx18-av-core.h1
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index 3ccdf613bce..12401425356 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -80,6 +80,7 @@ static void log_video_status(struct cx18 *cx);
static void cx18_av_initialize(struct cx18 *cx)
{
+ struct cx18_av_state *state = &cx->av_state;
u32 v;
cx18_av_loadfw(cx);
@@ -159,6 +160,8 @@ static void cx18_av_initialize(struct cx18 *cx)
/* CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x6628021F); */
/* } */
cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, 0x6628021F);
+ state->default_volume = 228 - cx18_av_read(cx, 0x8d4);
+ state->default_volume = ((state->default_volume / 2) + 23) << 9;
}
/* ----------------------------------------------------------------------- */
@@ -559,6 +562,8 @@ int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg)
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:
diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h
index b54239959a6..49e31bccc55 100644
--- a/drivers/media/video/cx18/cx18-av-core.h
+++ b/drivers/media/video/cx18/cx18-av-core.h
@@ -79,6 +79,7 @@ struct cx18_av_state {
u32 audclk_freq;
int audmode;
int vbi_line_offset;
+ int default_volume;
u32 id;
u32 rev;
int is_initialized;