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Commit 79f2f5ea authored by Patrick Lai's avatar Patrick Lai Committed by Banajit Goswami
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ASoC: msm: msm8994: add mixer command for SLIM0 TX bit format 



As part of effort to support 24-bit recording on MSM8994, add
mixer control so user-space can choose bit format of SLIMBUS_0_TX
back-end through mixer control.

Change-Id: I9395ce4bfd56a3a48c8a86ab403b6f433ef0e626
Signed-off-by: default avatarPatrick Lai <plai@codeaurora.org>
parent c76fd0cf

sound/soc/msm/msm8994.c

+46 −0
Original line number Diff line number Diff line
@@ -799,6 +799,50 @@ static int msm_slim_0_rx_ch_put(struct snd_kcontrol *kcontrol, 
	return 1;

}



static int slim0_tx_bit_format_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{



	switch (slim0_tx_bit_format) {

	case SNDRV_PCM_FORMAT_S24_LE:

		ucontrol->value.integer.value[0] = 1;

		break;



	case SNDRV_PCM_FORMAT_S16_LE:

	default:

		ucontrol->value.integer.value[0] = 0;

		break;

	}



	pr_debug("%s: slim0_tx_bit_format = %d, ucontrol value = %ld\n",

			 __func__, slim0_tx_bit_format,

			ucontrol->value.integer.value[0]);



	return 0;

}



static int slim0_tx_bit_format_put(struct snd_kcontrol *kcontrol,

				   struct snd_ctl_elem_value *ucontrol)

{

	int rc = 0;



	switch (ucontrol->value.integer.value[0]) {

	case 1:

		slim0_tx_bit_format = SNDRV_PCM_FORMAT_S24_LE;

		break;

	case 0:

		slim0_tx_bit_format = SNDRV_PCM_FORMAT_S16_LE;

		break;

	default:

		pr_err("%s: invalid value %ld\n", __func__,

		       ucontrol->value.integer.value[0]);

		rc = -EINVAL;

		break;

	}



	return rc;

}



static int msm_slim_0_tx_ch_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{
@@ -1616,6 +1660,8 @@ static const struct snd_kcontrol_new msm_snd_controls[] = { 
		     msm_btsco_rate_get, msm_btsco_rate_put),

	SOC_ENUM_EXT("HDMI_RX SampleRate", msm_snd_enum[7],

			hdmi_rx_sample_rate_get, hdmi_rx_sample_rate_put),

	SOC_ENUM_EXT("SLIM_0_TX Format", msm_snd_enum[4],

			slim0_tx_bit_format_get, slim0_tx_bit_format_put),

};



static bool msm8994_swap_gnd_mic(struct snd_soc_codec *codec)