Commit 8d9e4c9e authored by Chen-Yu Tsai's avatar Chen-Yu Tsai Committed by Mark Brown
Browse files

ASoC: sun4i-codec: Add support for A31 playback through headphone output 



The A31 has a similar codec to the A10/A20. The PCM parts are very
similar, with different register offsets. The analog paths are very
different. There are more inputs and outputs. The ADC mux has been
replaced with a proper mixer.

This patch adds support for the basic playback path of the A31 codec,
from the DAC to the headphones. Headphone detection, microphone,
signaling, other inputs/outputs and capture will be added later.

Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
Acked-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 730e2dd0

Documentation/devicetree/bindings/sound/sun4i-codec.txt

+20 −2
Original line number Diff line number Diff line 
* Allwinner A10 Codec



Required properties:

- compatible: must be either "allwinner,sun4i-a10-codec" or

  "allwinner,sun7i-a20-codec"

- compatible: must be one of the following compatibles:

		- "allwinner,sun4i-a10-codec"

		- "allwinner,sun6i-a31-codec"

		- "allwinner,sun7i-a20-codec"

- reg: must contain the registers location and length

- interrupts: must contain the codec interrupt

- dmas: DMA channels for tx and rx dma. See the DMA client binding,
@@ -17,6 +19,10 @@ Required properties: 
Optional properties:

- allwinner,pa-gpios: gpio to enable external amplifier



Required properties for the following compatibles:

		- "allwinner,sun6i-a31-codec"

- resets: phandle to the reset control for this device



Example:

codec: codec@01c22c00 {

	#sound-dai-cells = <0>;
@@ -28,3 +34,15 @@ codec: codec@01c22c00 { 
	dmas = <&dma 0 19>, <&dma 0 19>;

	dma-names = "rx", "tx";

};



codec: codec@01c22c00 {

	#sound-dai-cells = <0>;

	compatible = "allwinner,sun6i-a31-codec";

	reg = <0x01c22c00 0x98>;

	interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;

	clocks = <&ccu CLK_APB1_CODEC>, <&ccu CLK_CODEC>;

	clock-names = "apb", "codec";

	resets = <&ccu RST_APB1_CODEC>;

	dmas = <&dma 15>, <&dma 15>;

	dma-names = "rx", "tx";

};

sound/soc/sunxi/sun4i-codec.c

+267 −4
Original line number Diff line number Diff line
@@ -109,6 +109,109 @@ 
/* Microphone controls (sun7i only) */

#define SUN7I_CODEC_AC_MIC_PHONE_CAL		(0x3c)



/*

 * sun6i specific registers

 *

 * sun6i shares the same digital control and FIFO registers as sun4i,

 * but only the DAC digital controls are at the same offset. The others

 * have been moved around to accommodate extra analog controls.

 */



/* Codec DAC digital controls and FIFO registers */

#define SUN6I_CODEC_ADC_FIFOC			(0x10)

#define SUN6I_CODEC_ADC_FIFOC_EN_AD			(28)

#define SUN6I_CODEC_ADC_FIFOS			(0x14)

#define SUN6I_CODEC_ADC_RXDATA			(0x18)



/* Output mixer and gain controls */

#define SUN6I_CODEC_OM_DACA_CTRL		(0x20)

#define SUN6I_CODEC_OM_DACA_CTRL_DACAREN		(31)

#define SUN6I_CODEC_OM_DACA_CTRL_DACALEN		(30)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIXEN			(29)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIXEN			(28)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC1		(23)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC2		(22)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONE		(21)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONEP		(20)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR		(19)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR		(18)

#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL		(17)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC1		(16)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC2		(15)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONE		(14)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONEN		(13)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL		(12)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL		(11)

#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR		(10)

#define SUN6I_CODEC_OM_DACA_CTRL_RHPIS			(9)

#define SUN6I_CODEC_OM_DACA_CTRL_LHPIS			(8)

#define SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE		(7)

#define SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE		(6)

#define SUN6I_CODEC_OM_DACA_CTRL_HPVOL			(0)

#define SUN6I_CODEC_OM_PA_CTRL			(0x24)

#define SUN6I_CODEC_OM_PA_CTRL_HPPAEN			(31)

#define SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL		(29)

#define SUN6I_CODEC_OM_PA_CTRL_COMPTEN			(28)

#define SUN6I_CODEC_OM_PA_CTRL_MIC1G			(15)

#define SUN6I_CODEC_OM_PA_CTRL_MIC2G			(12)

#define SUN6I_CODEC_OM_PA_CTRL_LINEING			(9)

#define SUN6I_CODEC_OM_PA_CTRL_PHONEG			(6)

#define SUN6I_CODEC_OM_PA_CTRL_PHONEPG			(3)

#define SUN6I_CODEC_OM_PA_CTRL_PHONENG			(0)



/* Microphone, line out and phone out controls */

#define SUN6I_CODEC_MIC_CTRL			(0x28)

#define SUN6I_CODEC_MIC_CTRL_HBIASEN			(31)

#define SUN6I_CODEC_MIC_CTRL_MBIASEN			(30)

#define SUN6I_CODEC_MIC_CTRL_MIC1AMPEN			(28)

#define SUN6I_CODEC_MIC_CTRL_MIC1BOOST			(25)

#define SUN6I_CODEC_MIC_CTRL_MIC2AMPEN			(24)

#define SUN6I_CODEC_MIC_CTRL_MIC2BOOST			(21)

#define SUN6I_CODEC_MIC_CTRL_MIC2SLT			(20)

#define SUN6I_CODEC_MIC_CTRL_LINEOUTLEN			(19)

#define SUN6I_CODEC_MIC_CTRL_LINEOUTREN			(18)

#define SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC		(17)

#define SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC		(16)

#define SUN6I_CODEC_MIC_CTRL_LINEOUTVC			(11)

#define SUN6I_CODEC_MIC_CTRL_PHONEPREG			(8)



/* ADC mixer controls */

#define SUN6I_CODEC_ADC_ACTL			(0x2c)

#define SUN6I_CODEC_ADC_ACTL_ADCREN			(31)

#define SUN6I_CODEC_ADC_ACTL_ADCLEN			(30)

#define SUN6I_CODEC_ADC_ACTL_ADCRG			(27)

#define SUN6I_CODEC_ADC_ACTL_ADCLG			(24)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC1		(13)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC2		(12)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONE		(11)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONEP		(10)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_LINEINR		(9)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXR		(8)

#define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXL		(7)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC1		(6)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC2		(5)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONE		(4)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONEN		(3)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_LINEINL		(2)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXL		(1)

#define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXR		(0)



/* Analog performance tuning controls */

#define SUN6I_CODEC_ADDA_TUNE			(0x30)



/* Calibration controls */

#define SUN6I_CODEC_CALIBRATION			(0x34)



/* FIFO counters */

#define SUN6I_CODEC_DAC_TXCNT			(0x40)

#define SUN6I_CODEC_ADC_RXCNT			(0x44)



/* headset jack detection and button support registers */

#define SUN6I_CODEC_HMIC_CTL			(0x50)

#define SUN6I_CODEC_HMIC_DATA			(0x54)



/* TODO sun6i DAP (Digital Audio Processing) bits */



struct sun4i_codec {

	struct device	*dev;

	struct regmap	*regmap;
@@ -214,9 +317,14 @@ static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream, 
	 *        Allwinner's code mentions that it is related

	 *        related to microphone gain

	 */

	if (of_device_is_compatible(scodec->dev->of_node,

				    "allwinner,sun4i-a10-codec") ||

	    of_device_is_compatible(scodec->dev->of_node,

				    "allwinner,sun7i-a20-codec")) {

		regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL,

				   0x3 << 25,

				   0x1 << 25);

	}



	if (of_device_is_compatible(scodec->dev->of_node,

				    "allwinner,sun7i-a20-codec"))
@@ -516,7 +624,7 @@ static struct snd_soc_dai_driver sun4i_codec_dai = { 
	},

};



/*** Codec ***/

/*** sun4i Codec ***/

static const struct snd_kcontrol_new sun4i_codec_pa_mute =

	SOC_DAPM_SINGLE("Switch", SUN4I_CODEC_DAC_ACTL,

			SUN4I_CODEC_DAC_ACTL_PA_MUTE, 1, 0);
@@ -652,6 +760,122 @@ static struct snd_soc_codec_driver sun4i_codec_codec = { 
	},

};



/*** sun6i Codec ***/



/* mixer controls */

static const struct snd_kcontrol_new sun6i_codec_mixer_controls[] = {

	SOC_DAPM_DOUBLE("DAC Playback Switch",

			SUN6I_CODEC_OM_DACA_CTRL,

			SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL,

			SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR, 1, 0),

	SOC_DAPM_DOUBLE("DAC Reversed Playback Switch",

			SUN6I_CODEC_OM_DACA_CTRL,

			SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR,

			SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL, 1, 0),

};



/* headphone controls */

static const char * const sun6i_codec_hp_src_enum_text[] = {

	"DAC", "Mixer",

};



static SOC_ENUM_DOUBLE_DECL(sun6i_codec_hp_src_enum,

			    SUN6I_CODEC_OM_DACA_CTRL,

			    SUN6I_CODEC_OM_DACA_CTRL_LHPIS,

			    SUN6I_CODEC_OM_DACA_CTRL_RHPIS,

			    sun6i_codec_hp_src_enum_text);



static const struct snd_kcontrol_new sun6i_codec_hp_src[] = {

	SOC_DAPM_ENUM("Headphone Source Playback Route",

		      sun6i_codec_hp_src_enum),

};



/* volume / mute controls */

static const DECLARE_TLV_DB_SCALE(sun6i_codec_dvol_scale, -7308, 116, 0);

static const DECLARE_TLV_DB_SCALE(sun6i_codec_hp_vol_scale, -6300, 100, 1);



static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {

	SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,

		       SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,

		       sun6i_codec_dvol_scale),

	SOC_SINGLE_TLV("Headphone Playback Volume",

		       SUN6I_CODEC_OM_DACA_CTRL,

		       SUN6I_CODEC_OM_DACA_CTRL_HPVOL, 0x3f, 0,

		       sun6i_codec_hp_vol_scale),

	SOC_DOUBLE("Headphone Playback Switch",

		   SUN6I_CODEC_OM_DACA_CTRL,

		   SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE,

		   SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),

};



static const struct snd_soc_dapm_widget sun6i_codec_codec_dapm_widgets[] = {

	/* Digital parts of the DACs */

	SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,

			    SUN4I_CODEC_DAC_DPC_EN_DA, 0,

			    NULL, 0),



	/* Analog parts of the DACs */

	SND_SOC_DAPM_DAC("Left DAC", "Codec Playback",

			 SUN6I_CODEC_OM_DACA_CTRL,

			 SUN6I_CODEC_OM_DACA_CTRL_DACALEN, 0),

	SND_SOC_DAPM_DAC("Right DAC", "Codec Playback",

			 SUN6I_CODEC_OM_DACA_CTRL,

			 SUN6I_CODEC_OM_DACA_CTRL_DACAREN, 0),



	/* Mixers */

	SOC_MIXER_ARRAY("Left Mixer", SUN6I_CODEC_OM_DACA_CTRL,

			SUN6I_CODEC_OM_DACA_CTRL_LMIXEN, 0,

			sun6i_codec_mixer_controls),

	SOC_MIXER_ARRAY("Right Mixer", SUN6I_CODEC_OM_DACA_CTRL,

			SUN6I_CODEC_OM_DACA_CTRL_RMIXEN, 0,

			sun6i_codec_mixer_controls),



	/* Headphone output path */

	SND_SOC_DAPM_MUX("Headphone Source Playback Route",

			 SND_SOC_NOPM, 0, 0, sun6i_codec_hp_src),

	SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN6I_CODEC_OM_PA_CTRL,

			     SUN6I_CODEC_OM_PA_CTRL_HPPAEN, 0, NULL, 0),

	SND_SOC_DAPM_SUPPLY("HPCOM Protection", SUN6I_CODEC_OM_PA_CTRL,

			    SUN6I_CODEC_OM_PA_CTRL_COMPTEN, 0, NULL, 0),

	SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUN6I_CODEC_OM_PA_CTRL,

			 SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL, 0x3, 0x3, 0),

	SND_SOC_DAPM_OUTPUT("HP"),

};



static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {

	/* DAC Routes */

	{ "Left DAC", NULL, "DAC Enable" },

	{ "Right DAC", NULL, "DAC Enable" },



	/* Left Mixer Routes */

	{ "Left Mixer", "DAC Playback Switch", "Left DAC" },

	{ "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" },



	/* Right Mixer Routes */

	{ "Right Mixer", "DAC Playback Switch", "Right DAC" },

	{ "Right Mixer", "DAC Reversed Playback Switch", "Left DAC" },



	/* Headphone Routes */

	{ "Headphone Source Playback Route", "DAC", "Left DAC" },

	{ "Headphone Source Playback Route", "DAC", "Right DAC" },

	{ "Headphone Source Playback Route", "Mixer", "Left Mixer" },

	{ "Headphone Source Playback Route", "Mixer", "Right Mixer" },

	{ "Headphone Amp", NULL, "Headphone Source Playback Route" },

	{ "HP", NULL, "Headphone Amp" },

	{ "HPCOM", NULL, "HPCOM Protection" },

};



static struct snd_soc_codec_driver sun6i_codec_codec = {

	.component_driver = {

		.controls		= sun6i_codec_codec_widgets,

		.num_controls		= ARRAY_SIZE(sun6i_codec_codec_widgets),

		.dapm_widgets		= sun6i_codec_codec_dapm_widgets,

		.num_dapm_widgets	= ARRAY_SIZE(sun6i_codec_codec_dapm_widgets),

		.dapm_routes		= sun6i_codec_codec_dapm_routes,

		.num_dapm_routes	= ARRAY_SIZE(sun6i_codec_codec_dapm_routes),

	},

};



static const struct snd_soc_component_driver sun4i_codec_component = {

	.name = "sun4i-codec",

};
@@ -756,6 +980,24 @@ static struct snd_soc_card *sun4i_codec_create_card(struct device *dev) 
	return card;

};



static struct snd_soc_card *sun6i_codec_create_card(struct device *dev)

{

	struct snd_soc_card *card;



	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);

	if (!card)

		return ERR_PTR(-ENOMEM);



	card->dai_link = sun4i_codec_create_link(dev, &card->num_links);

	if (!card->dai_link)

		return ERR_PTR(-ENOMEM);



	card->dev	= dev;

	card->name	= "A31 Audio Codec";



	return card;

};



static const struct regmap_config sun4i_codec_regmap_config = {

	.reg_bits	= 32,

	.reg_stride	= 4,
@@ -763,6 +1005,13 @@ static const struct regmap_config sun4i_codec_regmap_config = { 
	.max_register	= SUN4I_CODEC_ADC_RXCNT,

};



static const struct regmap_config sun6i_codec_regmap_config = {

	.reg_bits	= 32,

	.reg_stride	= 4,

	.val_bits	= 32,

	.max_register	= SUN6I_CODEC_HMIC_DATA,

};



static const struct regmap_config sun7i_codec_regmap_config = {

	.reg_bits	= 32,

	.reg_stride	= 4,
@@ -788,6 +1037,16 @@ static const struct sun4i_codec_quirks sun4i_codec_quirks = { 
	.reg_adc_rxdata	= SUN4I_CODEC_ADC_RXDATA,

};



static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {

	.regmap_config	= &sun6i_codec_regmap_config,

	.codec		= &sun6i_codec_codec,

	.create_card	= sun6i_codec_create_card,

	.reg_adc_fifoc	= REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),

	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,

	.reg_adc_rxdata	= SUN6I_CODEC_ADC_RXDATA,

	.has_reset	= true,

};



static const struct sun4i_codec_quirks sun7i_codec_quirks = {

	.regmap_config	= &sun7i_codec_regmap_config,

	.codec		= &sun4i_codec_codec,
@@ -802,6 +1061,10 @@ static const struct of_device_id sun4i_codec_of_match[] = { 
		.compatible = "allwinner,sun4i-a10-codec",

		.data = &sun4i_codec_quirks,

	},

	{

		.compatible = "allwinner,sun6i-a31-codec",

		.data = &sun6i_a31_codec_quirks,

	},

	{

		.compatible = "allwinner,sun7i-a20-codec",

		.data = &sun7i_codec_quirks,

CRA Git | Maintained and supported by SUSTech CRA and CCSE