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ASoC: SOF: control: return true when kcontrol values change 

All the kcontrol put() functions are currently returning 0 when
successful. This does not go well with alsamixer as it does
not seem to get notified on SND_CTL_EVENT_MASK_VALUE callbacks
when values change for (some of) the sof kcontrols.
This patch fixes that by returning true for volume, switch
and enum type kcontrols when values do change in put().

Signed-off-by: Dragos Tarcatu <dragos_tarcatu@mentor.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191018123806.18063-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dragos Tarcatu 2019-10-18 07:38:06 -05:00 committed by Mark Brown
parent 9b7a7f9216
commit 95a32c9805
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 18 additions and 8 deletions
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26
sound/soc/sof/control.c
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@ -60,13 +60,16 @@ int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
struct snd_sof_dev *sdev = scontrol->sdev;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
cdata->chanv[i].value =
mixer_to_ipc(ucontrol->value.integer.value[i],
value = mixer_to_ipc(ucontrol->value.integer.value[i],
scontrol->volume_table, sm->max + 1);
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
/* notify DSP of mixer updates */
@ -76,8 +79,7 @@ int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
SOF_CTRL_TYPE_VALUE_CHAN_GET,
SOF_CTRL_CMD_VOLUME,
true);
return 0;
return change;
}
int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
@ -105,11 +107,15 @@ int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
struct snd_sof_dev *sdev = scontrol->sdev;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
cdata->chanv[i].value = ucontrol->value.integer.value[i];
value = ucontrol->value.integer.value[i];
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
/* notify DSP of mixer updates */
@ -120,7 +126,7 @@ int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
SOF_CTRL_CMD_SWITCH,
true);
return 0;
return change;
}
int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
@ -148,11 +154,15 @@ int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
struct snd_sof_dev *sdev = scontrol->sdev;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
unsigned int i, channels = scontrol->num_channels;
bool change = false;
u32 value;
/* update each channel */
for (i = 0; i < channels; i++) {
cdata->chanv[i].value = ucontrol->value.enumerated.item[i];
value = ucontrol->value.enumerated.item[i];
change = change || (value != cdata->chanv[i].value);
cdata->chanv[i].channel = i;
cdata->chanv[i].value = value;
}
/* notify DSP of enum updates */
@ -163,7 +173,7 @@ int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
SOF_CTRL_CMD_ENUM,
true);
return 0;
return change;
}
int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,