diff options
| author | lawrence rust <lawrence@softsystem.co.uk> | 2010-10-18 07:06:02 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-10-23 01:17:52 -0200 |
| commit | fcb9757333df37cf4a7feccef7ef6f5300643864 (patch) | |
| tree | b04e8567ef7fd1d6a67c291122dbd2476c38bcc8 /drivers/media/video/cx88/cx88-video.c | |
| parent | cb0ed22270129b980257fa9c83b152f09ecd9eda (diff) | |
[media] Nova-S-Plus audio line input
This patch adds audio DMA capture and ALSA mixer elements for the line
input jack of the Hauppauge Nova-S-plus DVB-S PCI card. The Nova-S-plus
has a WM8775 ADC that is currently not detected. This patch enables
this chip and exports volume, balance mute and ALC elements for ALSA
mixer controls.
[mchehab@redhat.com: Fix CodingStyle issues]
Signed-off-by: Lawrence Rust <lawrence@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx88/cx88-video.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-video.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index e3cff585215..d2f159daa8b 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -41,6 +41,7 @@ #include "cx88.h" #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> +#include <media/wm8775.h> MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards"); MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); @@ -977,6 +978,7 @@ int cx88_set_control(struct cx88_core *core, struct v4l2_control *ctl) const struct cx88_ctrl *c = NULL; u32 value,mask; int i; + struct v4l2_control client_ctl; for (i = 0; i < CX8800_CTLS; i++) { if (cx8800_ctls[i].v.id == ctl->id) { @@ -990,6 +992,27 @@ int cx88_set_control(struct cx88_core *core, struct v4l2_control *ctl) ctl->value = c->v.minimum; if (ctl->value > c->v.maximum) ctl->value = c->v.maximum; + + /* Pass changes onto any WM8775 */ + client_ctl.id = ctl->id; + switch (ctl->id) { + case V4L2_CID_AUDIO_MUTE: + client_ctl.value = ctl->value; + break; + case V4L2_CID_AUDIO_VOLUME: + client_ctl.value = (ctl->value) ? + (0x90 + ctl->value) << 8 : 0; + break; + case V4L2_CID_AUDIO_BALANCE: + client_ctl.value = ctl->value << 9; + break; + default: + client_ctl.id = 0; + break; + } + if (client_ctl.id) + call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); + mask=c->mask; switch (ctl->id) { case V4L2_CID_AUDIO_BALANCE: @@ -1536,7 +1559,9 @@ static int radio_queryctrl (struct file *file, void *priv, if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1) return -EINVAL; - if (c->id == V4L2_CID_AUDIO_MUTE) { + if (c->id == V4L2_CID_AUDIO_MUTE || + c->id == V4L2_CID_AUDIO_VOLUME || + c->id == V4L2_CID_AUDIO_BALANCE) { for (i = 0; i < CX8800_CTLS; i++) { if (cx8800_ctls[i].v.id == c->id) break; |