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ALSA: hdspm - Also check for TCO sync states

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This patch prepares snd_hdspm_get_sync_check() to also check the TCO
sync state. The added feature will be exposed to the user in a later
commit.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Adrian Knoth 2013-03-10 00:37:25 +01:00 committed by Takashi Iwai
parent e5b7b1fe3b
commit 345422133a
1 changed files with 42 additions and 0 deletions
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42
sound/pci/rme9652/hdspm.c
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@ -3447,6 +3447,16 @@ static int snd_hdspm_put_playback_mixer(struct snd_kcontrol *kcontrol,
.get = snd_hdspm_get_sync_check \
}
#define HDSPM_TCO_LOCK_CHECK(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = xname, \
.private_value = xindex, \
.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
.info = snd_hdspm_tco_info_lock_check, \
.get = snd_hdspm_get_sync_check \
}
static int snd_hdspm_info_sync_check(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
@ -3456,6 +3466,14 @@ static int snd_hdspm_info_sync_check(struct snd_kcontrol *kcontrol,
return 0;
}
static int snd_hdspm_tco_info_lock_check(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static char *texts[] = { "No Lock", "Lock" };
ENUMERATED_CTL_INFO(uinfo, texts);
return 0;
}
static int hdspm_wc_sync_check(struct hdspm *hdspm)
{
int status, status2;
@ -3585,6 +3603,14 @@ static int hdspm_aes_sync_check(struct hdspm *hdspm, int idx)
return 0;
}
static int hdspm_tco_input_check(struct hdspm *hdspm, u32 mask)
{
u32 status;
status = hdspm_read(hdspm, HDSPM_RD_TCO + 4);
return (status & mask) ? 1 : 0;
}
static int hdspm_tco_sync_check(struct hdspm *hdspm)
{
@ -3692,6 +3718,22 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol,
}
if (hdspm->tco) {
switch (kcontrol->private_value) {
case 11:
/* Check TCO for lock state of its current input */
val = hdspm_tco_input_check(hdspm, HDSPM_TCO1_TCO_lock);
break;
case 12:
/* Check TCO for valid time code on LTC input. */
val = hdspm_tco_input_check(hdspm,
HDSPM_TCO1_LTC_Input_valid);
break;
default:
break;
}
}
if (-1 == val)
val = 3;