937 lines
23 KiB
C
937 lines
23 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// ak4613.c -- Asahi Kasei ALSA Soc Audio driver
|
|
//
|
|
// Copyright (C) 2015 Renesas Electronics Corporation
|
|
// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
//
|
|
// Based on ak4642.c by Kuninori Morimoto
|
|
// Based on wm8731.c by Richard Purdie
|
|
// Based on ak4535.c by Richard Purdie
|
|
// Based on wm8753.c by Liam Girdwood
|
|
|
|
/*
|
|
* +-------+
|
|
* |AK4613 |
|
|
* SDTO1 <-| |
|
|
* | |
|
|
* SDTI1 ->| |
|
|
* SDTI2 ->| |
|
|
* SDTI3 ->| |
|
|
* +-------+
|
|
*
|
|
* +---+
|
|
* clk | |___________________________________________...
|
|
*
|
|
* [TDM512]
|
|
* SDTO1 [L1][R1][L2][R2]
|
|
* SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4][L5][R5][L6][R6]
|
|
*
|
|
* [TDM256]
|
|
* SDTO1 [L1][R1][L2][R2]
|
|
* SDTI1 [L1][R1][L2][R2][L3][R3][L4][R4]
|
|
* SDTI2 [L5][R5][L6][R6]
|
|
*
|
|
* [TDM128]
|
|
* SDTO1 [L1][R1][L2][R2]
|
|
* SDTI1 [L1][R1][L2][R2]
|
|
* SDTI2 [L3][R3][L4][R4]
|
|
* SDTI3 [L5][R5][L6][R6]
|
|
*
|
|
* [STEREO]
|
|
* Playback 2ch : SDTI1
|
|
* Capture 2ch : SDTO1
|
|
*
|
|
* [TDM512]
|
|
* Playback 12ch : SDTI1
|
|
* Capture 4ch : SDTO1
|
|
*
|
|
* [TDM256]
|
|
* Playback 12ch : SDTI1 + SDTI2
|
|
* Playback 8ch : SDTI1
|
|
* Capture 4ch : SDTO1
|
|
*
|
|
* [TDM128]
|
|
* Playback 12ch : SDTI1 + SDTI2 + SDTI3
|
|
* Playback 8ch : SDTI1 + SDTI2
|
|
* Playback 4ch : SDTI1
|
|
* Capture 4ch : SDTO1
|
|
*
|
|
*
|
|
* !!! NOTE !!!
|
|
*
|
|
* Renesas is the only user of ak4613 on upstream so far,
|
|
* but the chip connection is like below.
|
|
* Thus, Renesas can't test all connection case.
|
|
* Tested TDM is very limited.
|
|
*
|
|
* +-----+ +-----------+
|
|
* | SoC | | AK4613 |
|
|
* | |<-----|SDTO1 IN1|<-- Mic
|
|
* | | | IN2|
|
|
* | | | |
|
|
* | |----->|SDTI1 OUT1|--> Headphone
|
|
* +-----+ |SDTI2 OUT2|
|
|
* |SDTI3 OUT3|
|
|
* | OUT4|
|
|
* | OUT5|
|
|
* | OUT6|
|
|
* +-----------+
|
|
*
|
|
* Renesas SoC can handle [2, 6,8] channels.
|
|
* Ak4613 can handle [2,4, 8,12] channels.
|
|
*
|
|
* Because of above HW connection and available channels number,
|
|
* Renesas could test are ...
|
|
*
|
|
* [STEREO] Playback 2ch : SDTI1
|
|
* Capture 2ch : SDTO1
|
|
* [TDM256] Playback 8ch : SDTI1 (*)
|
|
*
|
|
* (*) it used 8ch data between SoC <-> AK4613 on TDM256 mode,
|
|
* but could confirm is only first 2ch because only 1
|
|
* Headphone is connected.
|
|
*
|
|
* see
|
|
* AK4613_ENABLE_TDM_TEST
|
|
*/
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/of_graph.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/tlv.h>
|
|
|
|
#define PW_MGMT1 0x00 /* Power Management 1 */
|
|
#define PW_MGMT2 0x01 /* Power Management 2 */
|
|
#define PW_MGMT3 0x02 /* Power Management 3 */
|
|
#define CTRL1 0x03 /* Control 1 */
|
|
#define CTRL2 0x04 /* Control 2 */
|
|
#define DEMP1 0x05 /* De-emphasis1 */
|
|
#define DEMP2 0x06 /* De-emphasis2 */
|
|
#define OFD 0x07 /* Overflow Detect */
|
|
#define ZRD 0x08 /* Zero Detect */
|
|
#define ICTRL 0x09 /* Input Control */
|
|
#define OCTRL 0x0a /* Output Control */
|
|
#define LOUT1 0x0b /* LOUT1 Volume Control */
|
|
#define ROUT1 0x0c /* ROUT1 Volume Control */
|
|
#define LOUT2 0x0d /* LOUT2 Volume Control */
|
|
#define ROUT2 0x0e /* ROUT2 Volume Control */
|
|
#define LOUT3 0x0f /* LOUT3 Volume Control */
|
|
#define ROUT3 0x10 /* ROUT3 Volume Control */
|
|
#define LOUT4 0x11 /* LOUT4 Volume Control */
|
|
#define ROUT4 0x12 /* ROUT4 Volume Control */
|
|
#define LOUT5 0x13 /* LOUT5 Volume Control */
|
|
#define ROUT5 0x14 /* ROUT5 Volume Control */
|
|
#define LOUT6 0x15 /* LOUT6 Volume Control */
|
|
#define ROUT6 0x16 /* ROUT6 Volume Control */
|
|
|
|
/* PW_MGMT1 */
|
|
#define RSTN BIT(0)
|
|
#define PMDAC BIT(1)
|
|
#define PMADC BIT(2)
|
|
#define PMVR BIT(3)
|
|
|
|
/* PW_MGMT2 */
|
|
#define PMAD_ALL 0x7
|
|
|
|
/* PW_MGMT3 */
|
|
#define PMDA_ALL 0x3f
|
|
|
|
/* CTRL1 */
|
|
#define DIF0 BIT(3)
|
|
#define DIF1 BIT(4)
|
|
#define DIF2 BIT(5)
|
|
#define TDM0 BIT(6)
|
|
#define TDM1 BIT(7)
|
|
#define NO_FMT (0xff)
|
|
#define FMT_MASK (0xf8)
|
|
|
|
/* CTRL2 */
|
|
#define DFS_MASK (3 << 2)
|
|
#define DFS_NORMAL_SPEED (0 << 2)
|
|
#define DFS_DOUBLE_SPEED (1 << 2)
|
|
#define DFS_QUAD_SPEED (2 << 2)
|
|
|
|
/* ICTRL */
|
|
#define ICTRL_MASK (0x3)
|
|
|
|
/* OCTRL */
|
|
#define OCTRL_MASK (0x3F)
|
|
|
|
/*
|
|
* configs
|
|
*
|
|
* 0x000000BA
|
|
*
|
|
* B : AK4613_CONFIG_SDTI_x
|
|
* A : AK4613_CONFIG_MODE_x
|
|
*/
|
|
#define AK4613_CONFIG_SET(priv, x) priv->configs |= AK4613_CONFIG_##x
|
|
#define AK4613_CONFIG_GET(priv, x) (priv->configs & AK4613_CONFIG_##x##_MASK)
|
|
|
|
/*
|
|
* AK4613_CONFIG_SDTI_x
|
|
*
|
|
* It indicates how many SDTIx is connected.
|
|
*/
|
|
#define AK4613_CONFIG_SDTI_MASK (0xF << 4)
|
|
#define AK4613_CONFIG_SDTI(x) (((x) & 0xF) << 4)
|
|
#define AK4613_CONFIG_SDTI_set(priv, x) AK4613_CONFIG_SET(priv, SDTI(x))
|
|
#define AK4613_CONFIG_SDTI_get(priv) ((AK4613_CONFIG_GET(priv, SDTI) >> 4) & 0xF)
|
|
|
|
/*
|
|
* AK4613_CONFIG_MODE_x
|
|
*
|
|
* Same as Ctrl1 :: TDM1/TDM0
|
|
* No shift is requested
|
|
* see
|
|
* AK4613_CTRL1_TO_MODE()
|
|
* Table 11/12/13/14
|
|
*/
|
|
#define AK4613_CONFIG_MODE_MASK (0xF)
|
|
#define AK4613_CONFIG_MODE_STEREO (0x0)
|
|
#define AK4613_CONFIG_MODE_TDM512 (0x1)
|
|
#define AK4613_CONFIG_MODE_TDM256 (0x2)
|
|
#define AK4613_CONFIG_MODE_TDM128 (0x3)
|
|
|
|
/*
|
|
* !!!! FIXME !!!!
|
|
*
|
|
* Because of testable HW limitation, TDM256 8ch TDM was only tested.
|
|
* This driver uses AK4613_ENABLE_TDM_TEST instead of new DT property so far.
|
|
* Don't hesitate to update driver, you don't need to care compatible
|
|
* with Renesas.
|
|
*
|
|
* #define AK4613_ENABLE_TDM_TEST
|
|
*/
|
|
|
|
struct ak4613_interface {
|
|
unsigned int width;
|
|
unsigned int fmt;
|
|
u8 dif;
|
|
};
|
|
|
|
struct ak4613_priv {
|
|
struct mutex lock;
|
|
struct snd_pcm_hw_constraint_list constraint_rates;
|
|
struct snd_pcm_hw_constraint_list constraint_channels;
|
|
struct work_struct dummy_write_work;
|
|
struct snd_soc_component *component;
|
|
unsigned int rate;
|
|
unsigned int sysclk;
|
|
|
|
unsigned int fmt;
|
|
unsigned int configs;
|
|
int cnt;
|
|
u8 ctrl1;
|
|
u8 oc;
|
|
u8 ic;
|
|
};
|
|
|
|
/*
|
|
* Playback Volume
|
|
*
|
|
* max : 0x00 : 0 dB
|
|
* ( 0.5 dB step )
|
|
* min : 0xFE : -127.0 dB
|
|
* mute: 0xFF
|
|
*/
|
|
static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
|
|
|
|
static const struct snd_kcontrol_new ak4613_snd_controls[] = {
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
|
|
0, 0xFF, 1, out_tlv),
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
|
|
0, 0xFF, 1, out_tlv),
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
|
|
0, 0xFF, 1, out_tlv),
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
|
|
0, 0xFF, 1, out_tlv),
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
|
|
0, 0xFF, 1, out_tlv),
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
|
|
0, 0xFF, 1, out_tlv),
|
|
};
|
|
|
|
static const struct reg_default ak4613_reg[] = {
|
|
{ 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
|
|
{ 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
|
|
{ 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
|
|
{ 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
|
|
{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
|
|
{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
|
|
};
|
|
|
|
/*
|
|
* CTRL1 register
|
|
* see
|
|
* Table 11/12/13/14
|
|
*/
|
|
#define AUDIO_IFACE(_dif, _width, _fmt) \
|
|
{ \
|
|
.dif = _dif, \
|
|
.width = _width, \
|
|
.fmt = SND_SOC_DAIFMT_##_fmt,\
|
|
}
|
|
static const struct ak4613_interface ak4613_iface[] = {
|
|
/* It doesn't support asymmetric format */
|
|
|
|
AUDIO_IFACE(0x03, 24, LEFT_J),
|
|
AUDIO_IFACE(0x04, 24, I2S),
|
|
};
|
|
#define AK4613_CTRL1_TO_MODE(priv) ((priv)->ctrl1 >> 6) /* AK4613_CONFIG_MODE_x */
|
|
|
|
static const struct regmap_config ak4613_regmap_cfg = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = 0x16,
|
|
.reg_defaults = ak4613_reg,
|
|
.num_reg_defaults = ARRAY_SIZE(ak4613_reg),
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static const struct of_device_id ak4613_of_match[] = {
|
|
{ .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, ak4613_of_match);
|
|
|
|
static const struct i2c_device_id ak4613_i2c_id[] = {
|
|
{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
|
|
|
|
static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
|
|
|
|
/* Outputs */
|
|
SND_SOC_DAPM_OUTPUT("LOUT1"),
|
|
SND_SOC_DAPM_OUTPUT("LOUT2"),
|
|
SND_SOC_DAPM_OUTPUT("LOUT3"),
|
|
SND_SOC_DAPM_OUTPUT("LOUT4"),
|
|
SND_SOC_DAPM_OUTPUT("LOUT5"),
|
|
SND_SOC_DAPM_OUTPUT("LOUT6"),
|
|
|
|
SND_SOC_DAPM_OUTPUT("ROUT1"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT2"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT3"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT4"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT5"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT6"),
|
|
|
|
/* Inputs */
|
|
SND_SOC_DAPM_INPUT("LIN1"),
|
|
SND_SOC_DAPM_INPUT("LIN2"),
|
|
|
|
SND_SOC_DAPM_INPUT("RIN1"),
|
|
SND_SOC_DAPM_INPUT("RIN2"),
|
|
|
|
/* DAC */
|
|
SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
|
|
SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
|
|
SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
|
|
SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
|
|
SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
|
|
SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
|
|
|
|
/* ADC */
|
|
SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
|
|
SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route ak4613_intercon[] = {
|
|
{"LOUT1", NULL, "DAC1"},
|
|
{"LOUT2", NULL, "DAC2"},
|
|
{"LOUT3", NULL, "DAC3"},
|
|
{"LOUT4", NULL, "DAC4"},
|
|
{"LOUT5", NULL, "DAC5"},
|
|
{"LOUT6", NULL, "DAC6"},
|
|
|
|
{"ROUT1", NULL, "DAC1"},
|
|
{"ROUT2", NULL, "DAC2"},
|
|
{"ROUT3", NULL, "DAC3"},
|
|
{"ROUT4", NULL, "DAC4"},
|
|
{"ROUT5", NULL, "DAC5"},
|
|
{"ROUT6", NULL, "DAC6"},
|
|
|
|
{"DAC1", NULL, "Playback"},
|
|
{"DAC2", NULL, "Playback"},
|
|
{"DAC3", NULL, "Playback"},
|
|
{"DAC4", NULL, "Playback"},
|
|
{"DAC5", NULL, "Playback"},
|
|
{"DAC6", NULL, "Playback"},
|
|
|
|
{"Capture", NULL, "ADC1"},
|
|
{"Capture", NULL, "ADC2"},
|
|
|
|
{"ADC1", NULL, "LIN1"},
|
|
{"ADC2", NULL, "LIN2"},
|
|
|
|
{"ADC1", NULL, "RIN1"},
|
|
{"ADC2", NULL, "RIN2"},
|
|
};
|
|
|
|
static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
struct device *dev = component->dev;
|
|
|
|
mutex_lock(&priv->lock);
|
|
priv->cnt--;
|
|
if (priv->cnt < 0) {
|
|
dev_err(dev, "unexpected counter error\n");
|
|
priv->cnt = 0;
|
|
}
|
|
if (!priv->cnt)
|
|
priv->ctrl1 = 0;
|
|
mutex_unlock(&priv->lock);
|
|
}
|
|
|
|
static void ak4613_hw_constraints(struct ak4613_priv *priv,
|
|
struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
static const unsigned int ak4613_rates[] = {
|
|
32000,
|
|
44100,
|
|
48000,
|
|
64000,
|
|
88200,
|
|
96000,
|
|
176400,
|
|
192000,
|
|
};
|
|
#define AK4613_CHANNEL_2 0
|
|
#define AK4613_CHANNEL_4 1
|
|
#define AK4613_CHANNEL_8 2
|
|
#define AK4613_CHANNEL_12 3
|
|
#define AK4613_CHANNEL_NONE -1
|
|
static const unsigned int ak4613_channels[] = {
|
|
[AK4613_CHANNEL_2] = 2,
|
|
[AK4613_CHANNEL_4] = 4,
|
|
[AK4613_CHANNEL_8] = 8,
|
|
[AK4613_CHANNEL_12] = 12,
|
|
};
|
|
#define MODE_MAX 4
|
|
#define SDTx_MAX 4
|
|
#define MASK(x) (1 << AK4613_CHANNEL_##x)
|
|
static const int mask_list[MODE_MAX][SDTx_MAX] = {
|
|
/* SDTO SDTIx1 SDTIx2 SDTIx3 */
|
|
[AK4613_CONFIG_MODE_STEREO] = { MASK(2), MASK(2), MASK(2), MASK(2)},
|
|
[AK4613_CONFIG_MODE_TDM512] = { MASK(4), MASK(12), MASK(12), MASK(12)},
|
|
[AK4613_CONFIG_MODE_TDM256] = { MASK(4), MASK(8), MASK(8)|MASK(12), MASK(8)|MASK(12)},
|
|
[AK4613_CONFIG_MODE_TDM128] = { MASK(4), MASK(4), MASK(4)|MASK(8), MASK(4)|MASK(8)|MASK(12)},
|
|
};
|
|
struct snd_pcm_hw_constraint_list *constraint;
|
|
unsigned int mask;
|
|
unsigned int mode;
|
|
unsigned int fs;
|
|
int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
|
|
int sdti_num;
|
|
int i;
|
|
|
|
constraint = &priv->constraint_rates;
|
|
constraint->list = ak4613_rates;
|
|
constraint->mask = 0;
|
|
constraint->count = 0;
|
|
|
|
/*
|
|
* Slave Mode
|
|
* Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs
|
|
* Double: [64kHz, 96kHz] : 256fs
|
|
* Quad : [128kHz,192kHz]: 128fs
|
|
*
|
|
* Master mode
|
|
* Normal: [32kHz, 48kHz] : 256fs or 512fs
|
|
* Double: [64kHz, 96kHz] : 256fs
|
|
* Quad : [128kHz,192kHz]: 128fs
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) {
|
|
/* minimum fs on each range */
|
|
fs = (ak4613_rates[i] <= 96000) ? 256 : 128;
|
|
|
|
if (priv->sysclk >= ak4613_rates[i] * fs)
|
|
constraint->count = i + 1;
|
|
}
|
|
|
|
snd_pcm_hw_constraint_list(runtime, 0,
|
|
SNDRV_PCM_HW_PARAM_RATE, constraint);
|
|
|
|
|
|
sdti_num = AK4613_CONFIG_SDTI_get(priv);
|
|
if (WARN_ON(sdti_num >= SDTx_MAX))
|
|
return;
|
|
|
|
if (priv->cnt) {
|
|
/*
|
|
* If it was already working,
|
|
* the constraint is same as working mode.
|
|
*/
|
|
mode = AK4613_CTRL1_TO_MODE(priv);
|
|
mask = 0; /* no default */
|
|
} else {
|
|
/*
|
|
* It is not yet working,
|
|
* the constraint is based on board configs.
|
|
* STEREO mask is default
|
|
*/
|
|
mode = AK4613_CONFIG_GET(priv, MODE);
|
|
mask = mask_list[AK4613_CONFIG_MODE_STEREO][is_play * sdti_num];
|
|
}
|
|
|
|
if (WARN_ON(mode >= MODE_MAX))
|
|
return;
|
|
|
|
/* add each mode mask */
|
|
mask |= mask_list[mode][is_play * sdti_num];
|
|
|
|
constraint = &priv->constraint_channels;
|
|
constraint->list = ak4613_channels;
|
|
constraint->mask = mask;
|
|
constraint->count = sizeof(ak4613_channels);
|
|
snd_pcm_hw_constraint_list(runtime, 0,
|
|
SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
|
|
}
|
|
|
|
static int ak4613_dai_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
mutex_lock(&priv->lock);
|
|
ak4613_hw_constraints(priv, substream);
|
|
priv->cnt++;
|
|
mutex_unlock(&priv->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
priv->sysclk = freq;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int format)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
unsigned int fmt;
|
|
|
|
fmt = format & SND_SOC_DAIFMT_FORMAT_MASK;
|
|
switch (fmt) {
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
case SND_SOC_DAIFMT_I2S:
|
|
priv->fmt = fmt;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
fmt = format & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK;
|
|
switch (fmt) {
|
|
case SND_SOC_DAIFMT_CBC_CFC:
|
|
break;
|
|
default:
|
|
/*
|
|
* SUPPORTME
|
|
*
|
|
* "clock provider" is not yet supperted
|
|
*/
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ak4613_dai_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 ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
struct device *dev = component->dev;
|
|
unsigned int width = params_width(params);
|
|
unsigned int fmt = priv->fmt;
|
|
unsigned int rate;
|
|
int i, ret;
|
|
u8 ctrl2;
|
|
|
|
rate = params_rate(params);
|
|
switch (rate) {
|
|
case 32000:
|
|
case 44100:
|
|
case 48000:
|
|
ctrl2 = DFS_NORMAL_SPEED;
|
|
break;
|
|
case 64000:
|
|
case 88200:
|
|
case 96000:
|
|
ctrl2 = DFS_DOUBLE_SPEED;
|
|
break;
|
|
case 176400:
|
|
case 192000:
|
|
ctrl2 = DFS_QUAD_SPEED;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
priv->rate = rate;
|
|
|
|
/*
|
|
* FIXME
|
|
*
|
|
* It doesn't have full TDM suppert yet
|
|
*/
|
|
ret = -EINVAL;
|
|
|
|
mutex_lock(&priv->lock);
|
|
if (priv->cnt > 1) {
|
|
/*
|
|
* If it was already working, use current priv->ctrl1
|
|
*/
|
|
ret = 0;
|
|
} else {
|
|
/*
|
|
* It is not yet working,
|
|
*/
|
|
unsigned int channel = params_channels(params);
|
|
u8 tdm;
|
|
|
|
/* STEREO or TDM */
|
|
if (channel == 2)
|
|
tdm = AK4613_CONFIG_MODE_STEREO;
|
|
else
|
|
tdm = AK4613_CONFIG_GET(priv, MODE);
|
|
|
|
for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) {
|
|
const struct ak4613_interface *iface = ak4613_iface + i;
|
|
|
|
if ((iface->fmt == fmt) && (iface->width == width)) {
|
|
/*
|
|
* Ctrl1
|
|
* | D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
|
|
* |TDM1|TDM0|DIF2|DIF1|DIF0|ATS1|ATS0|SMUTE|
|
|
* < tdm > < iface->dif >
|
|
*/
|
|
priv->ctrl1 = (tdm << 6) | (iface->dif << 3);
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
mutex_unlock(&priv->lock);
|
|
|
|
if (ret < 0)
|
|
goto hw_params_end;
|
|
|
|
snd_soc_component_update_bits(component, CTRL1, FMT_MASK, priv->ctrl1);
|
|
snd_soc_component_update_bits(component, CTRL2, DFS_MASK, ctrl2);
|
|
|
|
snd_soc_component_update_bits(component, ICTRL, ICTRL_MASK, priv->ic);
|
|
snd_soc_component_update_bits(component, OCTRL, OCTRL_MASK, priv->oc);
|
|
|
|
hw_params_end:
|
|
if (ret < 0)
|
|
dev_warn(dev, "unsupported data width/format combination\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ak4613_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
u8 mgmt1 = 0;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
mgmt1 |= RSTN;
|
|
fallthrough;
|
|
case SND_SOC_BIAS_PREPARE:
|
|
mgmt1 |= PMADC | PMDAC;
|
|
fallthrough;
|
|
case SND_SOC_BIAS_STANDBY:
|
|
mgmt1 |= PMVR;
|
|
fallthrough;
|
|
case SND_SOC_BIAS_OFF:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
snd_soc_component_write(component, PW_MGMT1, mgmt1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ak4613_dummy_write(struct work_struct *work)
|
|
{
|
|
struct ak4613_priv *priv = container_of(work,
|
|
struct ak4613_priv,
|
|
dummy_write_work);
|
|
struct snd_soc_component *component = priv->component;
|
|
unsigned int mgmt1;
|
|
unsigned int mgmt3;
|
|
|
|
/*
|
|
* PW_MGMT1 / PW_MGMT3 needs dummy write at least after 5 LR clocks
|
|
*
|
|
* Note
|
|
*
|
|
* To avoid extra delay, we want to avoid preemption here,
|
|
* but we can't. Because it uses I2C access which is using IRQ
|
|
* and sleep. Thus, delay might be more than 5 LR clocks
|
|
* see also
|
|
* ak4613_dai_trigger()
|
|
*/
|
|
udelay(5000000 / priv->rate);
|
|
|
|
mgmt1 = snd_soc_component_read(component, PW_MGMT1);
|
|
mgmt3 = snd_soc_component_read(component, PW_MGMT3);
|
|
|
|
snd_soc_component_write(component, PW_MGMT1, mgmt1);
|
|
snd_soc_component_write(component, PW_MGMT3, mgmt3);
|
|
}
|
|
|
|
static int ak4613_dai_trigger(struct snd_pcm_substream *substream, int cmd,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
|
|
|
|
/*
|
|
* FIXME
|
|
*
|
|
* PW_MGMT1 / PW_MGMT3 needs dummy write at least after 5 LR clocks
|
|
* from Power Down Release. Otherwise, Playback volume will be 0dB.
|
|
* To avoid complex multiple delay/dummy_write method from
|
|
* ak4613_set_bias_level() / SND_SOC_DAPM_DAC_E("DACx", ...),
|
|
* call it once here.
|
|
*
|
|
* But, unfortunately, we can't "write" here because here is atomic
|
|
* context (It uses I2C access for writing).
|
|
* Thus, use schedule_work() to switching to normal context
|
|
* immediately.
|
|
*
|
|
* Note
|
|
*
|
|
* Calling ak4613_dummy_write() function might be delayed.
|
|
* In such case, ak4613 volume might be temporarily 0dB when
|
|
* beggining of playback.
|
|
* see also
|
|
* ak4613_dummy_write()
|
|
*/
|
|
|
|
if ((cmd != SNDRV_PCM_TRIGGER_START) &&
|
|
(cmd != SNDRV_PCM_TRIGGER_RESUME))
|
|
return 0;
|
|
|
|
if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
|
|
return 0;
|
|
|
|
priv->component = component;
|
|
schedule_work(&priv->dummy_write_work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Select below from Sound Card, not Auto
|
|
* SND_SOC_DAIFMT_CBC_CFC
|
|
* SND_SOC_DAIFMT_CBP_CFP
|
|
*/
|
|
static u64 ak4613_dai_formats =
|
|
SND_SOC_POSSIBLE_DAIFMT_I2S |
|
|
SND_SOC_POSSIBLE_DAIFMT_LEFT_J;
|
|
|
|
static const struct snd_soc_dai_ops ak4613_dai_ops = {
|
|
.startup = ak4613_dai_startup,
|
|
.shutdown = ak4613_dai_shutdown,
|
|
.set_sysclk = ak4613_dai_set_sysclk,
|
|
.set_fmt = ak4613_dai_set_fmt,
|
|
.trigger = ak4613_dai_trigger,
|
|
.hw_params = ak4613_dai_hw_params,
|
|
.auto_selectable_formats = &ak4613_dai_formats,
|
|
.num_auto_selectable_formats = 1,
|
|
};
|
|
|
|
#define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\
|
|
SNDRV_PCM_RATE_44100 |\
|
|
SNDRV_PCM_RATE_48000 |\
|
|
SNDRV_PCM_RATE_64000 |\
|
|
SNDRV_PCM_RATE_88200 |\
|
|
SNDRV_PCM_RATE_96000 |\
|
|
SNDRV_PCM_RATE_176400 |\
|
|
SNDRV_PCM_RATE_192000)
|
|
#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE)
|
|
|
|
static struct snd_soc_dai_driver ak4613_dai = {
|
|
.name = "ak4613-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 12,
|
|
.rates = AK4613_PCM_RATE,
|
|
.formats = AK4613_PCM_FMTBIT,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 2,
|
|
.channels_max = 4,
|
|
.rates = AK4613_PCM_RATE,
|
|
.formats = AK4613_PCM_FMTBIT,
|
|
},
|
|
.ops = &ak4613_dai_ops,
|
|
.symmetric_rate = 1,
|
|
};
|
|
|
|
static int ak4613_suspend(struct snd_soc_component *component)
|
|
{
|
|
struct regmap *regmap = dev_get_regmap(component->dev, NULL);
|
|
|
|
regcache_cache_only(regmap, true);
|
|
regcache_mark_dirty(regmap);
|
|
return 0;
|
|
}
|
|
|
|
static int ak4613_resume(struct snd_soc_component *component)
|
|
{
|
|
struct regmap *regmap = dev_get_regmap(component->dev, NULL);
|
|
|
|
regcache_cache_only(regmap, false);
|
|
return regcache_sync(regmap);
|
|
}
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_ak4613 = {
|
|
.suspend = ak4613_suspend,
|
|
.resume = ak4613_resume,
|
|
.set_bias_level = ak4613_set_bias_level,
|
|
.controls = ak4613_snd_controls,
|
|
.num_controls = ARRAY_SIZE(ak4613_snd_controls),
|
|
.dapm_widgets = ak4613_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
|
|
.dapm_routes = ak4613_intercon,
|
|
.num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
|
|
.idle_bias_on = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
static void ak4613_parse_of(struct ak4613_priv *priv,
|
|
struct device *dev)
|
|
{
|
|
struct device_node *np = dev->of_node;
|
|
char prop[32];
|
|
int sdti_num;
|
|
int i;
|
|
|
|
/* Input 1 - 2 */
|
|
for (i = 0; i < 2; i++) {
|
|
snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
|
|
if (!of_get_property(np, prop, NULL))
|
|
priv->ic |= 1 << i;
|
|
}
|
|
|
|
/* Output 1 - 6 */
|
|
for (i = 0; i < 6; i++) {
|
|
snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
|
|
if (!of_get_property(np, prop, NULL))
|
|
priv->oc |= 1 << i;
|
|
}
|
|
|
|
/*
|
|
* enable TDM256 test
|
|
*
|
|
* !!! FIXME !!!
|
|
*
|
|
* It should be configured by DT or other way
|
|
* if it was full supported.
|
|
* But it is using ifdef style for now for test
|
|
* purpose.
|
|
*/
|
|
#if defined(AK4613_ENABLE_TDM_TEST)
|
|
AK4613_CONFIG_SET(priv, MODE_TDM256);
|
|
#endif
|
|
|
|
/*
|
|
* connected STDI
|
|
* TDM support is assuming it is probed via Audio-Graph-Card style here.
|
|
* Default is SDTIx1 if it was probed via Simple-Audio-Card for now.
|
|
*/
|
|
sdti_num = of_graph_get_endpoint_count(np);
|
|
if ((sdti_num >= SDTx_MAX) || (sdti_num < 1))
|
|
sdti_num = 1;
|
|
|
|
AK4613_CONFIG_SDTI_set(priv, sdti_num);
|
|
}
|
|
|
|
static int ak4613_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct device *dev = &i2c->dev;
|
|
struct device_node *np = dev->of_node;
|
|
const struct regmap_config *regmap_cfg;
|
|
struct regmap *regmap;
|
|
struct ak4613_priv *priv;
|
|
|
|
regmap_cfg = NULL;
|
|
if (np)
|
|
regmap_cfg = of_device_get_match_data(dev);
|
|
else {
|
|
const struct i2c_device_id *id =
|
|
i2c_match_id(ak4613_i2c_id, i2c);
|
|
regmap_cfg = (const struct regmap_config *)id->driver_data;
|
|
}
|
|
|
|
if (!regmap_cfg)
|
|
return -EINVAL;
|
|
|
|
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
ak4613_parse_of(priv, dev);
|
|
|
|
priv->ctrl1 = 0;
|
|
priv->cnt = 0;
|
|
priv->sysclk = 0;
|
|
INIT_WORK(&priv->dummy_write_work, ak4613_dummy_write);
|
|
|
|
mutex_init(&priv->lock);
|
|
|
|
i2c_set_clientdata(i2c, priv);
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
return devm_snd_soc_register_component(dev, &soc_component_dev_ak4613,
|
|
&ak4613_dai, 1);
|
|
}
|
|
|
|
static struct i2c_driver ak4613_i2c_driver = {
|
|
.driver = {
|
|
.name = "ak4613-codec",
|
|
.of_match_table = ak4613_of_match,
|
|
},
|
|
.probe_new = ak4613_i2c_probe,
|
|
.id_table = ak4613_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(ak4613_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("Soc AK4613 driver");
|
|
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|
|
MODULE_LICENSE("GPL v2");
|