From 4907cf0953c352ba23517ee51160263b39aa3940 Mon Sep 17 00:00:00 2001 From: Satish Kodishala Date: Thu, 18 May 2017 19:19:30 +0530 Subject: [PATCH] btfm: provide a way to query wcn3990 status provide a way to query wcn3990 status. Audio hal uses this to cleanup its stack when BT is turned off or SCO is disconnected during SCO devices selection. CRs-Fixed: 2061191 Change-Id: I3c10559c6ca34692c7f147b5cc2f0101b0bfbbf9 Signed-off-by: Satish Kodishala --- drivers/bluetooth/btfm_slim_codec.c | 31 +++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/bluetooth/btfm_slim_codec.c b/drivers/bluetooth/btfm_slim_codec.c index 1faebb1759e2..96be0e2f9183 100644 --- a/drivers/bluetooth/btfm_slim_codec.c +++ b/drivers/bluetooth/btfm_slim_codec.c @@ -26,6 +26,9 @@ #include #include +static int bt_soc_enable_status; + + static int btfm_slim_codec_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { @@ -38,8 +41,31 @@ static unsigned int btfm_slim_codec_read(struct snd_soc_codec *codec, return 0; } +static int bt_soc_status_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = bt_soc_enable_status; + return 1; +} + +static int bt_soc_status_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return 1; +} + +static const struct snd_kcontrol_new status_controls[] = { + SOC_SINGLE_EXT("BT SOC status", 0, 0, 1, 0, + bt_soc_status_get, + bt_soc_status_put) + +}; + + static int btfm_slim_codec_probe(struct snd_soc_codec *codec) { + snd_soc_add_codec_controls(codec, status_controls, + ARRAY_SIZE(status_controls)); return 0; } @@ -130,6 +156,7 @@ int btfm_slim_dai_prepare(struct snd_pcm_substream *substream, struct btfmslim *btfmslim = dai->dev->platform_data; struct btfmslim_ch *ch; uint8_t rxport, grp = false, nchan = 1; + bt_soc_enable_status = 0; BTFMSLIM_DBG("dai->name: %s, dai->id: %d, dai->rate: %d", dai->name, dai->id, dai->rate); @@ -171,6 +198,10 @@ int btfm_slim_dai_prepare(struct snd_pcm_substream *substream, } ret = btfm_slim_enable_ch(btfmslim, ch, rxport, dai->rate, grp, nchan); + + /* save the enable channel status */ + if (ret == 0) + bt_soc_enable_status = 1; return ret; }