Unverified Commit 2b719fd2 authored by Shuming Fan's avatar Shuming Fan Committed by Mark Brown
Browse files

ASoC: rt1316: Add RT1316 SDCA vendor-specific driver 



This is the initial amplifier driver for rt1316 SDCA version.

Signed-off-by: default avatarShuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20210223090759.15323-1-shumingf@realtek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1b99d50b

sound/soc/codecs/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -182,6 +182,7 @@ config SND_SOC_ALL_CODECS 
	imply SND_SOC_RT711_SDW

	imply SND_SOC_RT715_SDW

	imply SND_SOC_RT1308_SDW

	imply SND_SOC_RT1316_SDW

	imply SND_SOC_SGTL5000

	imply SND_SOC_SI476X

	imply SND_SOC_SIMPLE_AMPLIFIER
@@ -1143,6 +1144,11 @@ config SND_SOC_RT1308_SDW 
	depends on I2C && SOUNDWIRE

	select REGMAP_SOUNDWIRE



config SND_SOC_RT1316_SDW

	tristate "Realtek RT1316 Codec - SDW"

	depends on SOUNDWIRE

	select REGMAP_SOUNDWIRE



config SND_SOC_RT5514

	tristate

	depends on I2C

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -173,6 +173,7 @@ snd-soc-rt1015p-objs := rt1015p.o 
snd-soc-rt1305-objs := rt1305.o

snd-soc-rt1308-objs := rt1308.o

snd-soc-rt1308-sdw-objs := rt1308-sdw.o

snd-soc-rt1316-sdw-objs := rt1316-sdw.o

snd-soc-rt274-objs := rt274.o

snd-soc-rt286-objs := rt286.o

snd-soc-rt298-objs := rt298.o
@@ -487,6 +488,7 @@ obj-$(CONFIG_SND_SOC_RT1015P) += snd-soc-rt1015p.o 
obj-$(CONFIG_SND_SOC_RT1305)	+= snd-soc-rt1305.o

obj-$(CONFIG_SND_SOC_RT1308)	+= snd-soc-rt1308.o

obj-$(CONFIG_SND_SOC_RT1308_SDW)	+= snd-soc-rt1308-sdw.o

obj-$(CONFIG_SND_SOC_RT1316_SDW)	+= snd-soc-rt1316-sdw.o

obj-$(CONFIG_SND_SOC_RT274)	+= snd-soc-rt274.o

obj-$(CONFIG_SND_SOC_RT286)	+= snd-soc-rt286.o

obj-$(CONFIG_SND_SOC_RT298)	+= snd-soc-rt298.o

sound/soc/codecs/rt1316-sdw.c

0 → 100644
+744 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

//

// rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver

//

// Copyright(c) 2021 Realtek Semiconductor Corp.

//

//

#include <linux/delay.h>

#include <linux/device.h>

#include <linux/pm_runtime.h>

#include <linux/mod_devicetable.h>

#include <linux/module.h>

#include <linux/regmap.h>

#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>

#include <sound/soc-dapm.h>

#include <sound/initval.h>

#include "rt1316-sdw.h"



static const struct reg_default rt1316_reg_defaults[] = {

	{ 0x3004, 0x00 },

	{ 0x3005, 0x00 },

	{ 0x3206, 0x00 },

	{ 0xc001, 0x00 },

	{ 0xc002, 0x00 },

	{ 0xc003, 0x00 },

	{ 0xc004, 0x00 },

	{ 0xc005, 0x00 },

	{ 0xc006, 0x00 },

	{ 0xc007, 0x00 },

	{ 0xc008, 0x00 },

	{ 0xc009, 0x00 },

	{ 0xc00a, 0x00 },

	{ 0xc00b, 0x00 },

	{ 0xc00c, 0x00 },

	{ 0xc00d, 0x00 },

	{ 0xc00e, 0x00 },

	{ 0xc00f, 0x00 },

	{ 0xc010, 0xa5 },

	{ 0xc011, 0x00 },

	{ 0xc012, 0xff },

	{ 0xc013, 0xff },

	{ 0xc014, 0x40 },

	{ 0xc015, 0x00 },

	{ 0xc016, 0x00 },

	{ 0xc017, 0x00 },

	{ 0xc605, 0x30 },

	{ 0xc700, 0x0a },

	{ 0xc701, 0xaa },

	{ 0xc702, 0x1a },

	{ 0xc703, 0x0a },

	{ 0xc710, 0x80 },

	{ 0xc711, 0x00 },

	{ 0xc712, 0x3e },

	{ 0xc713, 0x80 },

	{ 0xc714, 0x80 },

	{ 0xc715, 0x06 },

	{ 0xd101, 0x00 },

	{ 0xd102, 0x30 },

	{ 0xd103, 0x00 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },

	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },

};



static const struct reg_sequence rt1316_blind_write[] = {

	{ 0xc710, 0x17 },

	{ 0xc711, 0x80 },

	{ 0xc712, 0x26 },

	{ 0xc713, 0x06 },

	{ 0xc714, 0x80 },

	{ 0xc715, 0x06 },

	{ 0xc702, 0x0a },

	{ 0xc703, 0x0a },

	{ 0xc001, 0x45 },

	{ 0xc003, 0x00 },

	{ 0xc004, 0x11 },

	{ 0xc005, 0x00 },

	{ 0xc006, 0x00 },

	{ 0xc106, 0x00 },

	{ 0xc007, 0x11 },

	{ 0xc008, 0x11 },

	{ 0xc009, 0x00 },



	{ 0x2f0a, 0x00 },

	{ 0xd101, 0xf0 },

	{ 0xd103, 0x9b },

	{ 0x2f36, 0x8e },

	{ 0x3206, 0x80 },

	{ 0x3211, 0x0b },

	{ 0x3216, 0x06 },

	{ 0xc614, 0x20 },

	{ 0xc615, 0x0a },

	{ 0xc616, 0x02 },

	{ 0xc617, 0x00 },

	{ 0xc60b, 0x10 },

	{ 0xc60e, 0x05 },

	{ 0xc102, 0x00 },

	{ 0xc090, 0xb0 },

	{ 0xc00f, 0x01 },

	{ 0xc09c, 0x7b },



	{ 0xc602, 0x07 },

	{ 0xc603, 0x07 },

	{ 0xc0a3, 0x71 },

	{ 0xc00b, 0x30 },

	{ 0xc093, 0x80 },

	{ 0xc09d, 0x80 },

	{ 0xc0b0, 0x77 },

	{ 0xc010, 0xa5 },

	{ 0xc050, 0x83 },

	{ 0x2f55, 0x03 },

	{ 0x3217, 0xb5 },

	{ 0x3202, 0x02 },



	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 },



	/* for IV sense */

	{ 0x2232, 0x80 },

	{ 0xc0b0, 0x77 },

	{ 0xc011, 0x00 },

	{ 0xc020, 0x00 },

	{ 0xc023, 0x00 },

	{ 0x3101, 0x00 },

	{ 0x3004, 0xa0 },

	{ 0x3005, 0xb1 },

	{ 0xc007, 0x11 },

	{ 0xc008, 0x11 },

	{ 0xc009, 0x00 },

	{ 0xc022, 0xd6 },

	{ 0xc025, 0xd6 },



	{ 0xd001, 0x03 },

	{ 0xd002, 0xbf },

	{ 0xd003, 0x03 },

	{ 0xd004, 0xbf },

};



static bool rt1316_readable_register(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case 0x2f0a:

	case 0x2f36:

	case 0x3203 ... 0x320e:

	case 0xc000 ... 0xc7b4:

	case 0xcf00 ... 0xcf03:

	case 0xd101 ... 0xd103:

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):

	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):

		return true;

	default:

		return false;

	}

}



static bool rt1316_volatile_register(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case 0xc000:

	case 0xc093:

	case 0xc09d:

	case 0xc0a3:

	case 0xc201:

	case 0xc427 ... 0xc428:

	case 0xd102:

		return true;

	default:

		return false;

	}

}



static const struct regmap_config rt1316_sdw_regmap = {

	.reg_bits = 32,

	.val_bits = 8,

	.readable_reg = rt1316_readable_register,

	.volatile_reg = rt1316_volatile_register,

	.max_register = 0x4108ffff,

	.reg_defaults = rt1316_reg_defaults,

	.num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults),

	.cache_type = REGCACHE_RBTREE,

	.use_single_read = true,

	.use_single_write = true,

};



static int rt1316_read_prop(struct sdw_slave *slave)

{

	struct sdw_slave_prop *prop = &slave->prop;

	int nval;

	int i, j;

	u32 bit;

	unsigned long addr;

	struct sdw_dpn_prop *dpn;



	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;

	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;

	prop->is_sdca = true;



	prop->paging_support = true;



	/* first we need to allocate memory for set bits in port lists */

	prop->source_ports = 0x04; /* BITMAP: 00000100 */

	prop->sink_ports = 0x2; /* BITMAP:  00000010 */



	nval = hweight32(prop->source_ports);

	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,

		sizeof(*prop->src_dpn_prop), GFP_KERNEL);

	if (!prop->src_dpn_prop)

		return -ENOMEM;



	i = 0;

	dpn = prop->src_dpn_prop;

	addr = prop->source_ports;

	for_each_set_bit(bit, &addr, 32) {

		dpn[i].num = bit;

		dpn[i].type = SDW_DPN_FULL;

		dpn[i].simple_ch_prep_sm = true;

		dpn[i].ch_prep_timeout = 10;

		i++;

	}



	/* do this again for sink now */

	nval = hweight32(prop->sink_ports);

	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,

		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);

	if (!prop->sink_dpn_prop)

		return -ENOMEM;



	j = 0;

	dpn = prop->sink_dpn_prop;

	addr = prop->sink_ports;

	for_each_set_bit(bit, &addr, 32) {

		dpn[j].num = bit;

		dpn[j].type = SDW_DPN_FULL;

		dpn[j].simple_ch_prep_sm = true;

		dpn[j].ch_prep_timeout = 10;

		j++;

	}



	/* set the timeout values */

	prop->clk_stop_timeout = 20;



	dev_dbg(&slave->dev, "%s\n", __func__);



	return 0;

}



static int rt1316_io_init(struct device *dev, struct sdw_slave *slave)

{

	struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);



	if (rt1316->hw_init)

		return 0;



	if (rt1316->first_hw_init) {

		regcache_cache_only(rt1316->regmap, false);

		regcache_cache_bypass(rt1316->regmap, true);

	} else {

		/*

		 * PM runtime is only enabled when a Slave reports as Attached

		 */



		/* set autosuspend parameters */

		pm_runtime_set_autosuspend_delay(&slave->dev, 3000);

		pm_runtime_use_autosuspend(&slave->dev);



		/* update count of parent 'active' children */

		pm_runtime_set_active(&slave->dev);



		/* make sure the device does not suspend immediately */

		pm_runtime_mark_last_busy(&slave->dev);



		pm_runtime_enable(&slave->dev);

	}



	pm_runtime_get_noresume(&slave->dev);



	/* sw reset */

	regmap_write(rt1316->regmap, 0xc000, 0x02);



	/* initial settings - blind write */

	regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write,

		ARRAY_SIZE(rt1316_blind_write));



	if (rt1316->first_hw_init) {

		regcache_cache_bypass(rt1316->regmap, false);

		regcache_mark_dirty(rt1316->regmap);

	} else

		rt1316->first_hw_init = true;



	/* Mark Slave initialization complete */

	rt1316->hw_init = true;



	pm_runtime_mark_last_busy(&slave->dev);

	pm_runtime_put_autosuspend(&slave->dev);



	dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);

	return 0;

}



static int rt1316_update_status(struct sdw_slave *slave,

					enum sdw_slave_status status)

{

	struct  rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev);



	/* Update the status */

	rt1316->status = status;



	if (status == SDW_SLAVE_UNATTACHED)

		rt1316->hw_init = false;



	/*

	 * Perform initialization only if slave status is present and

	 * hw_init flag is false

	 */

	if (rt1316->hw_init || rt1316->status != SDW_SLAVE_ATTACHED)

		return 0;



	/* perform I/O transfers required for Slave initialization */

	return rt1316_io_init(&slave->dev, slave);

}



static int rt1316_classd_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_component *component =

		snd_soc_dapm_to_component(w->dapm);

	struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);

	unsigned char ps0 = 0x0, ps3 = 0x3;



	switch (event) {

	case SND_SOC_DAPM_POST_PMU:

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps0);

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps0);

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps0);

		break;

	case SND_SOC_DAPM_PRE_PMD:

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps3);

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps3);

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps3);

		break;



	default:

		break;

	}



	return 0;

}



static int rt1316_pde24_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_component *component =

		snd_soc_dapm_to_component(w->dapm);

	struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);

	unsigned char ps0 = 0x0, ps3 = 0x3;



	switch (event) {

	case SND_SOC_DAPM_POST_PMU:

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps0);

		break;

	case SND_SOC_DAPM_PRE_PMD:

		regmap_write(rt1316->regmap,

			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,

				RT1316_SDCA_CTL_REQ_POWER_STATE, 0),

				ps3);

		break;

	}

	return 0;

}



static const char * const rt1316_rx_data_ch_select[] = {

	"L,R",

	"L,L",

	"L,R",

	"L,L+R",

	"R,L",

	"R,R",

	"R,L+R",

	"L+R,L",

	"L+R,R",

	"L+R,L+R",

};



static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum,

	SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0,

	rt1316_rx_data_ch_select);



static const struct snd_kcontrol_new rt1316_snd_controls[] = {



	/* I2S Data Channel Selection */

	SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum),



	/* XU24 Bypass Control */

	SOC_SINGLE("XU24 Bypass Switch",

		SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0),



	/* Left/Right IV tag */

	SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0),

	SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0),

	SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0),

	SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0),



	/* IV mixer Control */

	SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1),

	SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1),

};



static const struct snd_kcontrol_new rt1316_sto_dac =

	SOC_DAPM_DOUBLE_R("Switch",

		SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L),

		SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R),

		0, 1, 1);



static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = {

	/* Audio Interface */

	SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),



	/* Digital Interface */

	SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac),



	/* Output Lines */

	SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,

		rt1316_classd_event,

		SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),

	SND_SOC_DAPM_OUTPUT("SPOL"),

	SND_SOC_DAPM_OUTPUT("SPOR"),



	SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0,

		rt1316_pde24_event,

		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),

	SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_SIGGEN("I Gen"),

	SND_SOC_DAPM_SIGGEN("V Gen"),

};



static const struct snd_soc_dapm_route rt1316_dapm_routes[] = {

	{ "DAC", "Switch", "DP1RX" },

	{ "CLASS D", NULL, "DAC" },

	{ "SPOL", NULL, "CLASS D" },

	{ "SPOR", NULL, "CLASS D" },



	{ "I Sense", NULL, "I Gen" },

	{ "V Sense", NULL, "V Gen" },

	{ "I Sense", NULL, "PDE 24" },

	{ "V Sense", NULL, "PDE 24" },

	{ "DP2TX", NULL, "I Sense" },

	{ "DP2TX", NULL, "V Sense" },

};



static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,

				int direction)

{

	struct sdw_stream_data *stream;



	if (!sdw_stream)

		return 0;



	stream = kzalloc(sizeof(*stream), GFP_KERNEL);

	if (!stream)

		return -ENOMEM;



	stream->sdw_stream = sdw_stream;



	/* Use tx_mask or rx_mask to configure stream tag and set dma_data */

	if (direction == SNDRV_PCM_STREAM_PLAYBACK)

		dai->playback_dma_data = stream;

	else

		dai->capture_dma_data = stream;



	return 0;

}



static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream,

				struct snd_soc_dai *dai)

{

	struct sdw_stream_data *stream;



	stream = snd_soc_dai_get_dma_data(dai, substream);

	snd_soc_dai_set_dma_data(dai, substream, NULL);

	kfree(stream);

}



static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream,

	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)

{

	struct snd_soc_component *component = dai->component;

	struct rt1316_sdw_priv *rt1316 =

		snd_soc_component_get_drvdata(component);

	struct sdw_stream_config stream_config;

	struct sdw_port_config port_config;

	enum sdw_data_direction direction;

	struct sdw_stream_data *stream;

	int retval, port, num_channels, ch_mask;



	dev_dbg(dai->dev, "%s %s", __func__, dai->name);

	stream = snd_soc_dai_get_dma_data(dai, substream);



	if (!stream)

		return -EINVAL;



	if (!rt1316->sdw_slave)

		return -EINVAL;



	/* SoundWire specific configuration */

	/* port 1 for playback */

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {

		direction = SDW_DATA_DIR_RX;

		port = 1;

	} else {

		direction = SDW_DATA_DIR_TX;

		port = 2;

	}



	num_channels = params_channels(params);

	ch_mask = (1 << num_channels) - 1;



	stream_config.frame_rate = params_rate(params);

	stream_config.ch_count = num_channels;

	stream_config.bps = snd_pcm_format_width(params_format(params));

	stream_config.direction = direction;



	port_config.ch_mask = ch_mask;

	port_config.num = port;



	retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config,

				&port_config, 1, stream->sdw_stream);

	if (retval) {

		dev_err(dai->dev, "Unable to configure port\n");

		return retval;

	}



	return 0;

}



static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream,

				struct snd_soc_dai *dai)

{

	struct snd_soc_component *component = dai->component;

	struct rt1316_sdw_priv *rt1316 =

		snd_soc_component_get_drvdata(component);

	struct sdw_stream_data *stream =

		snd_soc_dai_get_dma_data(dai, substream);



	if (!rt1316->sdw_slave)

		return -EINVAL;



	sdw_stream_remove_slave(rt1316->sdw_slave, stream->sdw_stream);

	return 0;

}



/*

 * slave_ops: callbacks for get_clock_stop_mode, clock_stop and

 * port_prep are not defined for now

 */

static struct sdw_slave_ops rt1316_slave_ops = {

	.read_prop = rt1316_read_prop,

	.update_status = rt1316_update_status,

};



static const struct snd_soc_component_driver soc_component_sdw_rt1316 = {

	.controls = rt1316_snd_controls,

	.num_controls = ARRAY_SIZE(rt1316_snd_controls),

	.dapm_widgets = rt1316_dapm_widgets,

	.num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets),

	.dapm_routes = rt1316_dapm_routes,

	.num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes),

};



static const struct snd_soc_dai_ops rt1316_aif_dai_ops = {

	.hw_params = rt1316_sdw_hw_params,

	.hw_free	= rt1316_sdw_pcm_hw_free,

	.set_sdw_stream	= rt1316_set_sdw_stream,

	.shutdown	= rt1316_sdw_shutdown,

};



#define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000

#define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \

			SNDRV_PCM_FMTBIT_S24_LE)



static struct snd_soc_dai_driver rt1316_sdw_dai[] = {

	{

		.name = "rt1316-aif",

		.playback = {

			.stream_name = "DP1 Playback",

			.channels_min = 1,

			.channels_max = 2,

			.rates = RT1316_STEREO_RATES,

			.formats = RT1316_FORMATS,

		},

		.capture = {

			.stream_name = "DP2 Capture",

			.channels_min = 1,

			.channels_max = 2,

			.rates = RT1316_STEREO_RATES,

			.formats = RT1316_FORMATS,

		},

		.ops = &rt1316_aif_dai_ops,

	},

};



static int rt1316_sdw_init(struct device *dev, struct regmap *regmap,

				struct sdw_slave *slave)

{

	struct rt1316_sdw_priv *rt1316;

	int ret;



	rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL);

	if (!rt1316)

		return -ENOMEM;



	dev_set_drvdata(dev, rt1316);

	rt1316->sdw_slave = slave;

	rt1316->regmap = regmap;



	/*

	 * Mark hw_init to false

	 * HW init will be performed when device reports present

	 */

	rt1316->hw_init = false;

	rt1316->first_hw_init = false;



	ret =  devm_snd_soc_register_component(dev,

				&soc_component_sdw_rt1316,

				rt1316_sdw_dai,

				ARRAY_SIZE(rt1316_sdw_dai));



	dev_dbg(&slave->dev, "%s\n", __func__);



	return ret;

}



static int rt1316_sdw_probe(struct sdw_slave *slave,

				const struct sdw_device_id *id)

{

	struct regmap *regmap;



	/* Regmap Initialization */

	regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap);

	if (!regmap)

		return -EINVAL;



	return rt1316_sdw_init(&slave->dev, regmap, slave);

}



static const struct sdw_device_id rt1316_id[] = {

	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0),

	{},

};

MODULE_DEVICE_TABLE(sdw, rt1316_id);



static int __maybe_unused rt1316_dev_suspend(struct device *dev)

{

	struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);



	if (!rt1316->hw_init)

		return 0;



	regcache_cache_only(rt1316->regmap, true);



	return 0;

}



#define RT1316_PROBE_TIMEOUT 5000



static int __maybe_unused rt1316_dev_resume(struct device *dev)

{

	struct sdw_slave *slave = dev_to_sdw_dev(dev);

	struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);

	unsigned long time;



	if (!rt1316->hw_init)

		return 0;



	if (!slave->unattach_request)

		goto regmap_sync;



	time = wait_for_completion_timeout(&slave->initialization_complete,

				msecs_to_jiffies(RT1316_PROBE_TIMEOUT));

	if (!time) {

		dev_err(&slave->dev, "Initialization not complete, timed out\n");

		return -ETIMEDOUT;

	}



regmap_sync:

	slave->unattach_request = 0;

	regcache_cache_only(rt1316->regmap, false);

	regcache_sync(rt1316->regmap);



	return 0;

}



static const struct dev_pm_ops rt1316_pm = {

	SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume)

	SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL)

};



static struct sdw_driver rt1316_sdw_driver = {

	.driver = {

		.name = "rt1316-sdca",

		.owner = THIS_MODULE,

		.pm = &rt1316_pm,

	},

	.probe = rt1316_sdw_probe,

	.ops = &rt1316_slave_ops,

	.id_table = rt1316_id,

};

module_sdw_driver(rt1316_sdw_driver);



MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW");

MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");

MODULE_LICENSE("GPL");

sound/soc/codecs/rt1316-sdw.h

0 → 100644
+55 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * rt1316-sdw.h -- RT1316 SDCA ALSA SoC audio driver header

 *

 * Copyright(c) 2021 Realtek Semiconductor Corp.

 */



#ifndef __RT1316_SDW_H__

#define __RT1316_SDW_H__



#include <linux/regmap.h>

#include <linux/soundwire/sdw.h>

#include <linux/soundwire/sdw_type.h>

#include <linux/soundwire/sdw_registers.h>

#include <sound/soc.h>



/* RT1316 SDCA Control - function number */

#define FUNC_NUM_SMART_AMP 0x04



/* RT1316 SDCA entity */

#define RT1316_SDCA_ENT_PDE23 0x31

#define RT1316_SDCA_ENT_PDE27 0x32

#define RT1316_SDCA_ENT_PDE22 0x33

#define RT1316_SDCA_ENT_PDE24 0x34

#define RT1316_SDCA_ENT_XU24 0x24

#define RT1316_SDCA_ENT_FU21 0x03

#define RT1316_SDCA_ENT_UDMPU21 0x02



/* RT1316 SDCA control */

#define RT1316_SDCA_CTL_SAMPLE_FREQ_INDEX 0x10

#define RT1316_SDCA_CTL_REQ_POWER_STATE 0x01

#define RT1316_SDCA_CTL_BYPASS 0x01

#define RT1316_SDCA_CTL_FU_MUTE 0x01

#define RT1316_SDCA_CTL_FU_VOLUME 0x02

#define RT1316_SDCA_CTL_UDMPU_CLUSTER 0x10



/* RT1316 SDCA channel */

#define CH_L 0x01

#define CH_R 0x02



struct rt1316_sdw_priv {

	struct snd_soc_component *component;

	struct regmap *regmap;

	struct sdw_slave *sdw_slave;

	enum sdw_slave_status status;

	struct sdw_bus_params params;

	bool hw_init;

	bool first_hw_init;

};



struct sdw_stream_data {

	struct sdw_stream_runtime *sdw_stream;

};



#endif /* __RT1316_SDW_H__ */