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ASoC: msm: Add switch for slimbus 0 Rx hostless mode

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FM Radio playback session needs to be closed and re-opened
for every device switch session. Add a new switch control
to avoid this so that switch can be enabled and disabled
instead of session closure and reopen.

Signed-off-by: Sriranjan Srikantam <cssrika@codeaurora.org>
This commit is contained in:
Sriranjan Srikantam
2011-07-14 00:34:56 -07:00
committed by Bryan Huntsman
parent 6691f04641
commit a4969dd3a8
1 changed files with 35 additions and 2 deletions
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37
sound/soc/msm/msm-pcm-routing.c
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@@ -52,6 +52,8 @@ enum {
AUDIO_PORT_MIXER_MAX,
};
static int fm_switch_enable;
/* Tx mixer session is stored based on BE DAI ID
* Need to map to actual AFE port ID since AFE port
* ID can get really large.
@@ -315,6 +317,30 @@ static int msm_routing_put_voice_mixer(struct snd_kcontrol *kcontrol,
return 1;
}
static int msm_routing_get_switch_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = fm_switch_enable;
pr_debug("%s: FM Switch enable %ld\n", __func__,
ucontrol->value.integer.value[0]);
return 0;
}
static int msm_routing_put_switch_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
pr_debug("%s: FM Switch enable %ld\n", __func__,
ucontrol->value.integer.value[0]);
if (ucontrol->value.integer.value[0])
snd_soc_dapm_mixer_update_power(widget, kcontrol, 1);
else
snd_soc_dapm_mixer_update_power(widget, kcontrol, 0);
fm_switch_enable = ucontrol->value.integer.value[0];
return 1;
}
static int msm_routing_get_port_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@@ -482,6 +508,11 @@ static const struct snd_kcontrol_new sbus_0_rx_port_mixer_controls[] = {
msm_routing_put_port_mixer),
};
static const struct snd_kcontrol_new fm_switch_mixer_controls =
SOC_SINGLE_EXT("Switch", SND_SOC_NOPM,
0, 1, 0, msm_routing_get_switch_mixer,
msm_routing_put_switch_mixer);
static const struct snd_soc_dapm_widget msm_qdsp6_widgets[] = {
/* Frontend AIF */
/* Widget name equals to Front-End DAI name<Need confirmation>,
@@ -519,7 +550,9 @@ static const struct snd_soc_dapm_widget msm_qdsp6_widgets[] = {
0, 0, 0 , 0),
SND_SOC_DAPM_AIF_IN("INT_FM_TX", "Internal FM Capture",
0, 0, 0, 0),
/* Switch Definitions */
SND_SOC_DAPM_SWITCH("SBUS_0_RX", SND_SOC_NOPM, 0, 0,
&fm_switch_mixer_controls),
/* Mixer definitions */
SND_SOC_DAPM_MIXER("PRI_RX Audio Mixer", SND_SOC_NOPM, 0, 0,
pri_i2s_rx_mixer_controls, ARRAY_SIZE(pri_i2s_rx_mixer_controls)),
@@ -606,7 +639,7 @@ static const struct snd_soc_dapm_route intercon[] = {
{"Voip_Tx Mixer", "SLIM_0_TX_Voip", "SLIMBUS_0_TX"},
{"Voip_Tx Mixer", "INTERNAL_BT_SCO_TX_Voip", "INT_BT_SCO_TX"},
{"VOIP_UL", NULL, "Voip_Tx Mixer"},
{"SLIMBUS_0_RX", NULL, "SLIM0_DL_HL"},
{"SLIMBUS_0_RX", "Switch", "SLIM0_DL_HL"},
{"SLIM0_UL_HL", NULL, "SLIMBUS_0_TX"},
{"INT_FM_RX", NULL, "INTFM_DL_HL"},
{"INTFM_UL_HL", NULL, "INT_FM_TX"},