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authorTakashi Iwai <tiwai@suse.de>2008-12-19 12:13:18 +0100
committerTakashi Iwai <tiwai@suse.de>2008-12-19 12:13:18 +0100
commit3d4758299fa6180ff9304634c67ffdd44272c8e8 (patch)
treec3ba2244cd191cfc4b9904b076e8d61fc9fb8834 /sound/pci/ca0106/ca0106_mixer.c
parent86effd7e12ca63cecfd218717473d606e138e5e1 (diff)
ALSA: ca0106 - Add IEC958 PCM Stream controls
Added "IEC958 PCM Stream" controls for the per-stream IEC958 status bits. Using this instead of "IEC958 Default" is safer since the status bits will be recovered to the default states after closing the PCM stream. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/ca0106/ca0106_mixer.c')
-rw-r--r--sound/pci/ca0106/ca0106_mixer.c83
1 files changed, 66 insertions, 17 deletions
diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index cccc32cdb94..8727881a10b 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -148,7 +148,7 @@ static void ca0106_set_capture_mic_line_in(struct snd_ca0106 *emu)
static void ca0106_set_spdif_bits(struct snd_ca0106 *emu, int idx)
{
- snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, emu->spdif_bits[idx]);
+ snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, emu->spdif_str_bits[idx]);
}
/*
@@ -353,16 +353,33 @@ static int snd_ca0106_spdif_info(struct snd_kcontrol *kcontrol,
return 0;
}
-static int snd_ca0106_spdif_get(struct snd_kcontrol *kcontrol,
+static void decode_spdif_bits(unsigned char *status, unsigned int bits)
+{
+ status[0] = (bits >> 0) & 0xff;
+ status[1] = (bits >> 8) & 0xff;
+ status[2] = (bits >> 16) & 0xff;
+ status[3] = (bits >> 24) & 0xff;
+}
+
+static int snd_ca0106_spdif_get_default(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
- ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
- ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
- ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
- ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
+ decode_spdif_bits(ucontrol->value.iec958.status,
+ emu->spdif_bits[idx]);
+ return 0;
+}
+
+static int snd_ca0106_spdif_get_stream(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+ decode_spdif_bits(ucontrol->value.iec958.status,
+ emu->spdif_str_bits[idx]);
return 0;
}
@@ -376,24 +393,48 @@ static int snd_ca0106_spdif_get_mask(struct snd_kcontrol *kcontrol,
return 0;
}
-static int snd_ca0106_spdif_put(struct snd_kcontrol *kcontrol,
+static unsigned int encode_spdif_bits(unsigned char *status)
+{
+ return ((unsigned int)status[0] << 0) |
+ ((unsigned int)status[1] << 8) |
+ ((unsigned int)status[2] << 16) |
+ ((unsigned int)status[3] << 24);
+}
+
+static int snd_ca0106_spdif_put_default(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
- int change;
unsigned int val;
- val = (ucontrol->value.iec958.status[0] << 0) |
- (ucontrol->value.iec958.status[1] << 8) |
- (ucontrol->value.iec958.status[2] << 16) |
- (ucontrol->value.iec958.status[3] << 24);
- change = val != emu->spdif_bits[idx];
- if (change) {
+ val = encode_spdif_bits(ucontrol->value.iec958.status);
+ if (val != emu->spdif_bits[idx]) {
emu->spdif_bits[idx] = val;
+ /* FIXME: this isn't safe, but needed to keep the compatibility
+ * with older alsa-lib config
+ */
+ emu->spdif_str_bits[idx] = val;
ca0106_set_spdif_bits(emu, idx);
+ return 1;
}
- return change;
+ return 0;
+}
+
+static int snd_ca0106_spdif_put_stream(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+ unsigned int val;
+
+ val = encode_spdif_bits(ucontrol->value.iec958.status);
+ if (val != emu->spdif_str_bits[idx]) {
+ emu->spdif_str_bits[idx] = val;
+ ca0106_set_spdif_bits(emu, idx);
+ return 1;
+ }
+ return 0;
}
static int snd_ca0106_volume_info(struct snd_kcontrol *kcontrol,
@@ -604,8 +645,16 @@ static struct snd_kcontrol_new snd_ca0106_volume_ctls[] __devinitdata = {
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
.count = 4,
.info = snd_ca0106_spdif_info,
- .get = snd_ca0106_spdif_get,
- .put = snd_ca0106_spdif_put
+ .get = snd_ca0106_spdif_get_default,
+ .put = snd_ca0106_spdif_put_default
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
+ .count = 4,
+ .info = snd_ca0106_spdif_info,
+ .get = snd_ca0106_spdif_get_stream,
+ .put = snd_ca0106_spdif_put_stream
},
};