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Unverified Commit 92a2742f authored by Michal Oleszczyk's avatar Michal Oleszczyk Committed by Mark Brown
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ASoC: sgtl5000: add 5 band graphic equalizer 



Enable 5-band graphic equalizer which allows manipulation of
gain in range -11.75dB to 12dB for 5 specific sound bands:
115Hz, 330Hz, 990Hz, 3000Hz, 9900Hz.

Signed-off-by: default avatarMichal Oleszczyk <oleszczyk.m@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7f7d5239

sound/soc/codecs/sgtl5000.c

+21 −3
Original line number Diff line number Diff line
@@ -520,6 +520,9 @@ static const DECLARE_TLV_DB_RANGE(mic_gain_tlv, 
/* tlv for DAP channels, 0% - 100% - 200% */

static const DECLARE_TLV_DB_SCALE(dap_volume, 0, 1, 0);



/* tlv for bass bands, -11.75db to 12.0db, step .25db */

static const DECLARE_TLV_DB_SCALE(bass_band, -1175, 25, 0);



/* tlv for hp volume, -51.5db to 12.0db, step .5db */

static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0);
@@ -585,6 +588,21 @@ static const struct snd_kcontrol_new sgtl5000_snd_controls[] = { 
	SOC_SINGLE_EXT_TLV("AVC Threshold Volume", SGTL5000_DAP_AVC_THRESHOLD,

			0, 96, 0, avc_get_threshold, avc_put_threshold,

			avc_threshold),



	SOC_SINGLE_TLV("BASS 0", SGTL5000_DAP_EQ_BASS_BAND0,

	0, 0x5F, 0, bass_band),



	SOC_SINGLE_TLV("BASS 1", SGTL5000_DAP_EQ_BASS_BAND1,

	0, 0x5F, 0, bass_band),



	SOC_SINGLE_TLV("BASS 2", SGTL5000_DAP_EQ_BASS_BAND2,

	0, 0x5F, 0, bass_band),



	SOC_SINGLE_TLV("BASS 3", SGTL5000_DAP_EQ_BASS_BAND3,

	0, 0x5F, 0, bass_band),



	SOC_SINGLE_TLV("BASS 4", SGTL5000_DAP_EQ_BASS_BAND4,

	0, 0x5F, 0, bass_band),

};



/* mute the codec used by alsa core */
@@ -1303,11 +1321,11 @@ static int sgtl5000_probe(struct snd_soc_component *component) 
			SGTL5000_BIAS_VOLT_MASK,

			sgtl5000->micbias_voltage << SGTL5000_BIAS_VOLT_SHIFT);

	/*

	 * disable DAP

	 * enable DAP Graphic EQ

	 * TODO:

	 * Enable DAP in kcontrol and dapm.

	 * Add control for changing between PEQ/Tone Control/GEQ

	 */

	snd_soc_component_write(component, SGTL5000_DAP_CTRL, 0);

	snd_soc_component_write(component, SGTL5000_DAP_AUDIO_EQ, SGTL5000_DAP_SEL_GEQ);



	/* Unmute DAC after start */

	snd_soc_component_update_bits(component, SGTL5000_CHIP_ADCDAC_CTRL,

sound/soc/codecs/sgtl5000.h

+7 −0
Original line number Diff line number Diff line
@@ -399,4 +399,11 @@ 
#define SGTL5000_SYSCLK				0x00

#define SGTL5000_LRCLK				0x01



/*

 * SGTL5000_DAP_AUDIO_EQ

 */

#define SGTL5000_DAP_SEL_PEQ			1

#define SGTL5000_DAP_SEL_TONE_CTRL		2

#define SGTL5000_DAP_SEL_GEQ			3



#endif