cregit-Linux how code gets into the kernel

Release 4.11 sound/soc/codecs/tas5086.c

Directory: sound/soc/codecs
/*
 * TAS5086 ASoC codec driver
 *
 * Copyright (c) 2013 Daniel Mack <zonque@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * TODO:
 *  - implement DAPM and input muxing
 *  - implement modulation limit
 *  - implement non-default PWM start
 *
 * Note that this chip has a very unusual register layout, specifically
 * because the registers are of unequal size, and multi-byte registers
 * require bulk writes to take effect. Regmap does not support that kind
 * of devices.
 *
 * Currently, the driver does not touch any of the registers >= 0x20, so
 * it doesn't matter because the entire map can be accessed as 8-bit
 * array. In case more features will be added in the future
 * that require access to higher registers, the entire regmap H/W I/O
 * routines have to be open-coded.
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/tas5086.h>


#define TAS5086_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE  |             \
                             SNDRV_PCM_FMTBIT_S20_3LE |         \
                             SNDRV_PCM_FMTBIT_S24_3LE)


#define TAS5086_PCM_RATES   (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100  | \
                             SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200  | \
                             SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | \
                             SNDRV_PCM_RATE_192000)

/*
 * TAS5086 registers
 */

#define TAS5086_CLOCK_CONTROL		0x00	
/* Clock control register  */

#define TAS5086_CLOCK_RATE(val)		(val << 5)

#define TAS5086_CLOCK_RATE_MASK		(0x7 << 5)

#define TAS5086_CLOCK_RATIO(val)	(val << 2)

#define TAS5086_CLOCK_RATIO_MASK	(0x7 << 2)

#define TAS5086_CLOCK_SCLK_RATIO_48	(1 << 1)

#define TAS5086_CLOCK_VALID		(1 << 0)


#define TAS5086_DEEMPH_MASK		0x03

#define TAS5086_SOFT_MUTE_ALL		0x3f


#define TAS5086_DEV_ID			0x01	
/* Device ID register */

#define TAS5086_ERROR_STATUS		0x02	
/* Error status register */

#define TAS5086_SYS_CONTROL_1		0x03	
/* System control register 1 */

#define TAS5086_SERIAL_DATA_IF		0x04	
/* Serial data interface register  */

#define TAS5086_SYS_CONTROL_2		0x05	
/* System control register 2 */

#define TAS5086_SOFT_MUTE		0x06	
/* Soft mute register */

#define TAS5086_MASTER_VOL		0x07	
/* Master volume  */

#define TAS5086_CHANNEL_VOL(X)		(0x08 + (X))	
/* Channel 1-6 volume */

#define TAS5086_VOLUME_CONTROL		0x09	
/* Volume control register */

#define TAS5086_MOD_LIMIT		0x10	
/* Modulation limit register */

#define TAS5086_PWM_START		0x18	
/* PWM start register */

#define TAS5086_SURROUND		0x19	
/* Surround register */

#define TAS5086_SPLIT_CAP_CHARGE	0x1a	
/* Split cap charge period register */

#define TAS5086_OSC_TRIM		0x1b	
/* Oscillator trim register */

#define TAS5086_BKNDERR 		0x1c

#define TAS5086_INPUT_MUX		0x20

#define TAS5086_PWM_OUTPUT_MUX		0x25


#define TAS5086_MAX_REGISTER		TAS5086_PWM_OUTPUT_MUX


#define TAS5086_PWM_START_MIDZ_FOR_START_1	(1 << 7)

#define TAS5086_PWM_START_MIDZ_FOR_START_2	(1 << 6)

#define TAS5086_PWM_START_CHANNEL_MASK		(0x3f)

/*
 * Default TAS5086 power-up configuration
 */

static const struct reg_default tas5086_reg_defaults[] = {
	{ 0x00,	0x6c },
	{ 0x01,	0x03 },
	{ 0x02,	0x00 },
	{ 0x03,	0xa0 },
	{ 0x04,	0x05 },
	{ 0x05,	0x60 },
	{ 0x06,	0x00 },
	{ 0x07,	0xff },
	{ 0x08,	0x30 },
	{ 0x09,	0x30 },
	{ 0x0a,	0x30 },
	{ 0x0b,	0x30 },
	{ 0x0c,	0x30 },
	{ 0x0d,	0x30 },
	{ 0x0e,	0xb1 },
	{ 0x0f,	0x00 },
	{ 0x10,	0x02 },
	{ 0x11,	0x00 },
	{ 0x12,	0x00 },
	{ 0x13,	0x00 },
	{ 0x14,	0x00 },
	{ 0x15,	0x00 },
	{ 0x16,	0x00 },
	{ 0x17,	0x00 },
	{ 0x18,	0x3f },
	{ 0x19,	0x00 },
	{ 0x1a,	0x18 },
	{ 0x1b,	0x82 },
	{ 0x1c,	0x05 },
};


static int tas5086_register_size(struct device *dev, unsigned int reg) { switch (reg) { case TAS5086_CLOCK_CONTROL ... TAS5086_BKNDERR: return 1; case TAS5086_INPUT_MUX: case TAS5086_PWM_OUTPUT_MUX: return 4; } dev_err(dev, "Unsupported register address: %d\n", reg); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack50100.00%3100.00%
Total50100.00%3100.00%


static bool tas5086_accessible_reg(struct device *dev, unsigned int reg) { switch (reg) { case 0x0f: case 0x11 ... 0x17: case 0x1d ... 0x1f: return false; default: return true; } }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack41100.00%2100.00%
Total41100.00%2100.00%


static bool tas5086_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case TAS5086_DEV_ID: case TAS5086_ERROR_STATUS: return true; } return false; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack33100.00%1100.00%
Total33100.00%1100.00%


static bool tas5086_writeable_reg(struct device *dev, unsigned int reg) { return tas5086_accessible_reg(dev, reg) && (reg != TAS5086_DEV_ID); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack29100.00%1100.00%
Total29100.00%1100.00%


static int tas5086_reg_write(void *context, unsigned int reg, unsigned int value) { struct i2c_client *client = context; unsigned int i, size; uint8_t buf[5]; int ret; size = tas5086_register_size(&client->dev, reg); if (size == 0) return -EINVAL; buf[0] = reg; for (i = size; i >= 1; --i) { buf[i] = value; value >>= 8; } ret = i2c_master_send(client, buf, size + 1); if (ret == size + 1) return 0; else if (ret < 0) return ret; else return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack134100.00%1100.00%
Total134100.00%1100.00%


static int tas5086_reg_read(void *context, unsigned int reg, unsigned int *value) { struct i2c_client *client = context; uint8_t send_buf, recv_buf[4]; struct i2c_msg msgs[2]; unsigned int size; unsigned int i; int ret; size = tas5086_register_size(&client->dev, reg); if (size == 0) return -EINVAL; send_buf = reg; msgs[0].addr = client->addr; msgs[0].len = sizeof(send_buf); msgs[0].buf = &send_buf; msgs[0].flags = 0; msgs[1].addr = client->addr; msgs[1].len = size; msgs[1].buf = recv_buf; msgs[1].flags = I2C_M_RD; ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); if (ret < 0) return ret; else if (ret != ARRAY_SIZE(msgs)) return -EIO; *value = 0; for (i = 0; i < size; i++) { *value <<= 8; *value |= recv_buf[i]; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack233100.00%1100.00%
Total233100.00%1100.00%

static const char * const supply_names[] = { "dvdd", "avdd" }; struct tas5086_private { struct regmap *regmap; unsigned int mclk, sclk; unsigned int format; bool deemph; unsigned int charge_period; unsigned int pwm_start_mid_z; /* Current sample rate for de-emphasis control */ int rate; /* GPIO driving Reset pin, if any */ int gpio_nreset; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; }; static int tas5086_deemph[] = { 0, 32000, 44100, 48000 };
static int tas5086_set_deemph(struct snd_soc_codec *codec) { struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); int i, val = 0; if (priv->deemph) { for (i = 0; i < ARRAY_SIZE(tas5086_deemph); i++) { if (tas5086_deemph[i] == priv->rate) { val = i; break; } } } return regmap_update_bits(priv->regmap, TAS5086_SYS_CONTROL_1, TAS5086_DEEMPH_MASK, val); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack7991.86%150.00%
Axel Lin78.14%150.00%
Total86100.00%2100.00%


static int tas5086_get_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); ucontrol->value.integer.value[0] = priv->deemph; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack5194.44%133.33%
Takashi Iwai23.70%133.33%
Lars-Peter Clausen11.85%133.33%
Total54100.00%3100.00%


static int tas5086_put_deemph(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); priv->deemph = ucontrol->value.integer.value[0]; return tas5086_set_deemph(codec); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack5494.74%133.33%
Takashi Iwai23.51%133.33%
Lars-Peter Clausen11.75%133.33%
Total57100.00%3100.00%


static int tas5086_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); switch (clk_id) { case TAS5086_CLK_IDX_MCLK: priv->mclk = freq; break; case TAS5086_CLK_IDX_SCLK: priv->sclk = freq; break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack69100.00%1100.00%
Total69100.00%1100.00%


static int tas5086_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { struct snd_soc_codec *codec = codec_dai->codec; struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); /* The TAS5086 can only be slave to all clocks */ if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) { dev_err(codec->dev, "Invalid clocking mode\n"); return -EINVAL; } /* we need to refer to the data format from hw_params() */ priv->format = format; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack70100.00%1100.00%
Total70100.00%1100.00%

static const int tas5086_sample_rates[] = { 32000, 38000, 44100, 48000, 88200, 96000, 176400, 192000 }; static const int tas5086_ratios[] = { 64, 128, 192, 256, 384, 512 };
static int index_in_array(const int *array, int len, int needle) { int i; for (i = 0; i < len; i++) if (array[i] == needle) return i; return -ENOENT; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack49100.00%1100.00%
Total49100.00%1100.00%


static int tas5086_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); int val; int ret; priv->rate = params_rate(params); /* Look up the sample rate and refer to the offset in the list */ val = index_in_array(tas5086_sample_rates, ARRAY_SIZE(tas5086_sample_rates), priv->rate); if (val < 0) { dev_err(codec->dev, "Invalid sample rate\n"); return -EINVAL; } ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, TAS5086_CLOCK_RATE_MASK, TAS5086_CLOCK_RATE(val)); if (ret < 0) return ret; /* MCLK / Fs ratio */ val = index_in_array(tas5086_ratios, ARRAY_SIZE(tas5086_ratios), priv->mclk / priv->rate); if (val < 0) { dev_err(codec->dev, "Invalid MCLK / Fs ratio\n"); return -EINVAL; } ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, TAS5086_CLOCK_RATIO_MASK, TAS5086_CLOCK_RATIO(val)); if (ret < 0) return ret; ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, TAS5086_CLOCK_SCLK_RATIO_48, (priv->sclk == 48 * priv->rate) ? TAS5086_CLOCK_SCLK_RATIO_48 : 0); if (ret < 0) return ret; /* * The chip has a very unituitive register mapping and muxes information * about data format and sample depth into the same register, but not on * a logical bit-boundary. Hence, we have to refer to the format passed * in the set_dai_fmt() callback and set up everything from here. * * First, determine the 'base' value, using the format ... */ switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_RIGHT_J: val = 0x00; break; case SND_SOC_DAIFMT_I2S: val = 0x03; break; case SND_SOC_DAIFMT_LEFT_J: val = 0x06; break; default: dev_err(codec->dev, "Invalid DAI format\n"); return -EINVAL; } /* ... then add the offset for the sample bit depth. */ switch (params_width(params)) { case 16: val += 0; break; case 20: val += 1; break; case 24: val += 2; break; default: dev_err(codec->dev, "Invalid bit width\n"); return -EINVAL; } ret = regmap_write(priv->regmap, TAS5086_SERIAL_DATA_IF, val); if (ret < 0) return ret; /* clock is considered valid now */ ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, TAS5086_CLOCK_VALID, TAS5086_CLOCK_VALID); if (ret < 0) return ret; return tas5086_set_deemph(codec); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack37298.67%133.33%
Mark Brown41.06%133.33%
Colin Ian King10.27%133.33%
Total377100.00%3100.00%


static int tas5086_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { struct snd_soc_codec *codec = dai->codec; struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); unsigned int val = 0; if (mute) val = TAS5086_SOFT_MUTE_ALL; return regmap_write(priv->regmap, TAS5086_SOFT_MUTE, val); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack62100.00%1100.00%
Total62100.00%1100.00%


static void tas5086_reset(struct tas5086_private *priv) { if (gpio_is_valid(priv->gpio_nreset)) { /* Reset codec - minimum assertion time is 400ns */ gpio_direction_output(priv->gpio_nreset, 0); udelay(1); gpio_set_value(priv->gpio_nreset, 1); /* Codec needs ~15ms to wake up */ msleep(15); } }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack52100.00%2100.00%
Total52100.00%2100.00%

/* charge period values in microseconds */ static const int tas5086_charge_period[] = { 13000, 16900, 23400, 31200, 41600, 54600, 72800, 96200, 130000, 156000, 234000, 312000, 416000, 546000, 728000, 962000, 1300000, 169000, 2340000, 3120000, 4160000, 5460000, 7280000, 9620000, };
static int tas5086_init(struct device *dev, struct tas5086_private *priv) { int ret, i; /* * If any of the channels is configured to start in Mid-Z mode, * configure 'part 1' of the PWM starts to use Mid-Z, and tell * all configured mid-z channels to start start under 'part 1'. */ if (priv->pwm_start_mid_z) regmap_write(priv->regmap, TAS5086_PWM_START, TAS5086_PWM_START_MIDZ_FOR_START_1 | priv->pwm_start_mid_z); /* lookup and set split-capacitor charge period */ if (priv->charge_period == 0) { regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0); } else { i = index_in_array(tas5086_charge_period, ARRAY_SIZE(tas5086_charge_period), priv->charge_period); if (i >= 0) regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, i + 0x08); else dev_warn(dev, "Invalid split-cap charge period of %d ns.\n", priv->charge_period); } /* enable factory trim */ ret = regmap_write(priv->regmap, TAS5086_OSC_TRIM, 0x00); if (ret < 0) return ret; /* start all channels */ ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x20); if (ret < 0) return ret; /* mute all channels for now */ ret = regmap_write(priv->regmap, TAS5086_SOFT_MUTE, TAS5086_SOFT_MUTE_ALL); if (ret < 0) return ret; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack187100.00%2100.00%
Total187100.00%2100.00%

/* TAS5086 controls */ static const DECLARE_TLV_DB_SCALE(tas5086_dac_tlv, -10350, 50, 1); static const struct snd_kcontrol_new tas5086_controls[] = { SOC_SINGLE_TLV("Master Playback Volume", TAS5086_MASTER_VOL, 0, 0xff, 1, tas5086_dac_tlv), SOC_DOUBLE_R_TLV("Channel 1/2 Playback Volume", TAS5086_CHANNEL_VOL(0), TAS5086_CHANNEL_VOL(1), 0, 0xff, 1, tas5086_dac_tlv), SOC_DOUBLE_R_TLV("Channel 3/4 Playback Volume", TAS5086_CHANNEL_VOL(2), TAS5086_CHANNEL_VOL(3), 0, 0xff, 1, tas5086_dac_tlv), SOC_DOUBLE_R_TLV("Channel 5/6 Playback Volume", TAS5086_CHANNEL_VOL(4), TAS5086_CHANNEL_VOL(5), 0, 0xff, 1, tas5086_dac_tlv), SOC_SINGLE_BOOL_EXT("De-emphasis Switch", 0, tas5086_get_deemph, tas5086_put_deemph), }; /* Input mux controls */ static const char *tas5086_dapm_sdin_texts[] = { "SDIN1-L", "SDIN1-R", "SDIN2-L", "SDIN2-R", "SDIN3-L", "SDIN3-R", "Ground (0)", "nc" }; static const struct soc_enum tas5086_dapm_input_mux_enum[] = { SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 20, 8, tas5086_dapm_sdin_texts), SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 16, 8, tas5086_dapm_sdin_texts), SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 12, 8, tas5086_dapm_sdin_texts), SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 8, 8, tas5086_dapm_sdin_texts), SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 4, 8, tas5086_dapm_sdin_texts), SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 0, 8, tas5086_dapm_sdin_texts), }; static const struct snd_kcontrol_new tas5086_dapm_input_mux_controls[] = { SOC_DAPM_ENUM("Channel 1 input", tas5086_dapm_input_mux_enum[0]), SOC_DAPM_ENUM("Channel 2 input", tas5086_dapm_input_mux_enum[1]), SOC_DAPM_ENUM("Channel 3 input", tas5086_dapm_input_mux_enum[2]), SOC_DAPM_ENUM("Channel 4 input", tas5086_dapm_input_mux_enum[3]), SOC_DAPM_ENUM("Channel 5 input", tas5086_dapm_input_mux_enum[4]), SOC_DAPM_ENUM("Channel 6 input", tas5086_dapm_input_mux_enum[5]), }; /* Output mux controls */ static const char *tas5086_dapm_channel_texts[] = { "Channel 1 Mux", "Channel 2 Mux", "Channel 3 Mux", "Channel 4 Mux", "Channel 5 Mux", "Channel 6 Mux" }; static const struct soc_enum tas5086_dapm_output_mux_enum[] = { SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 20, 6, tas5086_dapm_channel_texts), SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 16, 6, tas5086_dapm_channel_texts), SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 12, 6, tas5086_dapm_channel_texts), SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 8, 6, tas5086_dapm_channel_texts), SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 4, 6, tas5086_dapm_channel_texts), SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 0, 6, tas5086_dapm_channel_texts), }; static const struct snd_kcontrol_new tas5086_dapm_output_mux_controls[] = { SOC_DAPM_ENUM("PWM1 Output", tas5086_dapm_output_mux_enum[0]), SOC_DAPM_ENUM("PWM2 Output", tas5086_dapm_output_mux_enum[1]), SOC_DAPM_ENUM("PWM3 Output", tas5086_dapm_output_mux_enum[2]), SOC_DAPM_ENUM("PWM4 Output", tas5086_dapm_output_mux_enum[3]), SOC_DAPM_ENUM("PWM5 Output", tas5086_dapm_output_mux_enum[4]), SOC_DAPM_ENUM("PWM6 Output", tas5086_dapm_output_mux_enum[5]), }; static const struct snd_soc_dapm_widget tas5086_dapm_widgets[] = { SND_SOC_DAPM_INPUT("SDIN1-L"), SND_SOC_DAPM_INPUT("SDIN1-R"), SND_SOC_DAPM_INPUT("SDIN2-L"), SND_SOC_DAPM_INPUT("SDIN2-R"), SND_SOC_DAPM_INPUT("SDIN3-L"), SND_SOC_DAPM_INPUT("SDIN3-R"), SND_SOC_DAPM_INPUT("SDIN4-L"), SND_SOC_DAPM_INPUT("SDIN4-R"), SND_SOC_DAPM_OUTPUT("PWM1"), SND_SOC_DAPM_OUTPUT("PWM2"), SND_SOC_DAPM_OUTPUT("PWM3"), SND_SOC_DAPM_OUTPUT("PWM4"), SND_SOC_DAPM_OUTPUT("PWM5"), SND_SOC_DAPM_OUTPUT("PWM6"), SND_SOC_DAPM_MUX("Channel 1 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[0]), SND_SOC_DAPM_MUX("Channel 2 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[1]), SND_SOC_DAPM_MUX("Channel 3 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[2]), SND_SOC_DAPM_MUX("Channel 4 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[3]), SND_SOC_DAPM_MUX("Channel 5 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[4]), SND_SOC_DAPM_MUX("Channel 6 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_input_mux_controls[5]), SND_SOC_DAPM_MUX("PWM1 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[0]), SND_SOC_DAPM_MUX("PWM2 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[1]), SND_SOC_DAPM_MUX("PWM3 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[2]), SND_SOC_DAPM_MUX("PWM4 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[3]), SND_SOC_DAPM_MUX("PWM5 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[4]), SND_SOC_DAPM_MUX("PWM6 Mux", SND_SOC_NOPM, 0, 0, &tas5086_dapm_output_mux_controls[5]), }; static const struct snd_soc_dapm_route tas5086_dapm_routes[] = { /* SDIN inputs -> channel muxes */ { "Channel 1 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 1 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 1 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 1 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 1 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 1 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 3 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 3 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 3 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 3 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 3 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 3 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 4 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 4 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 4 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 4 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 4 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 4 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 5 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 5 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 5 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 5 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 5 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 5 Mux", "SDIN3-R", "SDIN3-R" }, { "Channel 6 Mux", "SDIN1-L", "SDIN1-L" }, { "Channel 6 Mux", "SDIN1-R", "SDIN1-R" }, { "Channel 6 Mux", "SDIN2-L", "SDIN2-L" }, { "Channel 6 Mux", "SDIN2-R", "SDIN2-R" }, { "Channel 6 Mux", "SDIN3-L", "SDIN3-L" }, { "Channel 6 Mux", "SDIN3-R", "SDIN3-R" }, /* Channel muxes -> PWM muxes */ { "PWM1 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM2 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM3 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM4 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM5 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM6 Mux", "Channel 1 Mux", "Channel 1 Mux" }, { "PWM1 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM2 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM3 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM4 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM5 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM6 Mux", "Channel 2 Mux", "Channel 2 Mux" }, { "PWM1 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM2 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM3 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM4 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM5 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM6 Mux", "Channel 3 Mux", "Channel 3 Mux" }, { "PWM1 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM2 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM3 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM4 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM5 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM6 Mux", "Channel 4 Mux", "Channel 4 Mux" }, { "PWM1 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM2 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM3 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM4 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM5 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM6 Mux", "Channel 5 Mux", "Channel 5 Mux" }, { "PWM1 Mux", "Channel 6 Mux", "Channel 6 Mux" }, { "PWM2 Mux", "Channel 6 Mux", "Channel 6 Mux" }, { "PWM3 Mux", "Channel 6 Mux", "Channel 6 Mux" }, { "PWM4 Mux", "Channel 6 Mux", "Channel 6 Mux" }, { "PWM5 Mux", "Channel 6 Mux", "Channel 6 Mux" }, { "PWM6 Mux", "Channel 6 Mux", "Channel 6 Mux" }, /* The PWM muxes are directly connected to the PWM outputs */ { "PWM1", NULL, "PWM1 Mux" }, { "PWM2", NULL, "PWM2 Mux" }, { "PWM3", NULL, "PWM3 Mux" }, { "PWM4", NULL, "PWM4 Mux" }, { "PWM5", NULL, "PWM5 Mux" }, { "PWM6", NULL, "PWM6 Mux" }, }; static const struct snd_soc_dai_ops tas5086_dai_ops = { .hw_params = tas5086_hw_params, .set_sysclk = tas5086_set_dai_sysclk, .set_fmt = tas5086_set_dai_fmt, .mute_stream = tas5086_mute_stream, }; static struct snd_soc_dai_driver tas5086_dai = { .name = "tas5086-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, .channels_max = 6, .rates = TAS5086_PCM_RATES, .formats = TAS5086_PCM_FORMATS, }, .ops = &tas5086_dai_ops, }; #ifdef CONFIG_PM
static int tas5086_soc_suspend(struct snd_soc_codec *codec) { struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); int ret; /* Shut down all channels */ ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x60); if (ret < 0) return ret; regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack64100.00%2100.00%
Total64100.00%2100.00%


static int tas5086_soc_resume(struct snd_soc_codec *codec) { struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); int ret; ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); if (ret < 0) return ret; tas5086_reset(priv); regcache_mark_dirty(priv->regmap); ret = tas5086_init(codec->dev, priv); if (ret < 0) return ret; ret = regcache_sync(priv->regmap); if (ret < 0) return ret; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack102100.00%3100.00%
Total102100.00%3100.00%

#else #define tas5086_soc_suspend NULL #define tas5086_soc_resume NULL #endif /* CONFIG_PM */ #ifdef CONFIG_OF static const struct of_device_id tas5086_dt_ids[] = { { .compatible = "ti,tas5086", }, { } }; MODULE_DEVICE_TABLE(of, tas5086_dt_ids); #endif
static int tas5086_probe(struct snd_soc_codec *codec) { struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); int i, ret; ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); if (ret < 0) { dev_err(codec->dev, "Failed to enable regulators: %d\n", ret); return ret; } priv->pwm_start_mid_z = 0; priv->charge_period = 1300000; /* hardware default is 1300 ms */ if (of_match_device(of_match_ptr(tas5086_dt_ids), codec->dev)) { struct device_node *of_node = codec->dev->of_node; of_property_read_u32(of_node, "ti,charge-period", &priv->charge_period); for (i = 0; i < 6; i++) { char name[25]; snprintf(name, sizeof(name), "ti,mid-z-channel-%d", i + 1); if (of_get_property(of_node, name, NULL) != NULL) priv->pwm_start_mid_z |= 1 << i; } } tas5086_reset(priv); ret = tas5086_init(codec->dev, priv); if (ret < 0) goto exit_disable_regulators; /* set master volume to 0 dB */ ret = regmap_write(priv->regmap, TAS5086_MASTER_VOL, 0x30); if (ret < 0) goto exit_disable_regulators; return 0; exit_disable_regulators: regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack244100.00%6100.00%
Total244100.00%6100.00%


static int tas5086_remove(struct snd_soc_codec *codec) { struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); if (gpio_is_valid(priv->gpio_nreset)) /* Set codec to the reset state */ gpio_set_value(priv->gpio_nreset, 0); regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack57100.00%2100.00%
Total57100.00%2100.00%

; static struct snd_soc_codec_driver soc_codec_dev_tas5086 = { .probe = tas5086_probe, .remove = tas5086_remove, .suspend = tas5086_soc_suspend, .resume = tas5086_soc_resume, .component_driver = { .controls = tas5086_controls, .num_controls = ARRAY_SIZE(tas5086_controls), .dapm_widgets = tas5086_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tas5086_dapm_widgets), .dapm_routes = tas5086_dapm_routes, .num_dapm_routes = ARRAY_SIZE(tas5086_dapm_routes), }, }; static const struct i2c_device_id tas5086_i2c_id[] = { { "tas5086", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, tas5086_i2c_id); static const struct regmap_config tas5086_regmap = { .reg_bits = 8, .val_bits = 32, .max_register = TAS5086_MAX_REGISTER, .reg_defaults = tas5086_reg_defaults, .num_reg_defaults = ARRAY_SIZE(tas5086_reg_defaults), .cache_type = REGCACHE_RBTREE, .volatile_reg = tas5086_volatile_reg, .writeable_reg = tas5086_writeable_reg, .readable_reg = tas5086_accessible_reg, .reg_read = tas5086_reg_read, .reg_write = tas5086_reg_write, };
static int tas5086_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct tas5086_private *priv; struct device *dev = &i2c->dev; int gpio_nreset = -EINVAL; int i, ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; for (i = 0; i < ARRAY_SIZE(supply_names); i++) priv->supplies[i].supply = supply_names[i]; ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies), priv->supplies); if (ret < 0) { dev_err(dev, "Failed to get regulators: %d\n", ret); return ret; } priv->regmap = devm_regmap_init(dev, NULL, i2c, &tas5086_regmap); if (IS_ERR(priv->regmap)) { ret = PTR_ERR(priv->regmap); dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret); return ret; } i2c_set_clientdata(i2c, priv); if (of_match_device(of_match_ptr(tas5086_dt_ids), dev)) { struct device_node *of_node = dev->of_node; gpio_nreset = of_get_named_gpio(of_node, "reset-gpio", 0); } if (gpio_is_valid(gpio_nreset)) if (devm_gpio_request(dev, gpio_nreset, "TAS5086 Reset")) gpio_nreset = -EINVAL; priv->gpio_nreset = gpio_nreset; ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators: %d\n", ret); return ret; } tas5086_reset(priv); /* The TAS5086 always returns 0x03 in its TAS5086_DEV_ID register */ ret = regmap_read(priv->regmap, TAS5086_DEV_ID, &i); if (ret == 0 && i != 0x3) { dev_err(dev, "Failed to identify TAS5086 codec (got %02x)\n", i); ret = -ENODEV; } /* * The chip has been identified, so we can turn off the power * again until the dai link is set up. */ regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); if (ret == 0) ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_tas5086, &tas5086_dai, 1); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack380100.00%4100.00%
Total380100.00%4100.00%


static int tas5086_i2c_remove(struct i2c_client *i2c) { snd_soc_unregister_codec(&i2c->dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack22100.00%1100.00%
Total22100.00%1100.00%

static struct i2c_driver tas5086_i2c_driver = { .driver = { .name = "tas5086", .of_match_table = of_match_ptr(tas5086_dt_ids), }, .id_table = tas5086_i2c_id, .probe = tas5086_i2c_probe, .remove = tas5086_i2c_remove, }; module_i2c_driver(tas5086_i2c_driver); MODULE_AUTHOR("Daniel Mack <zonque@gmail.com>"); MODULE_DESCRIPTION("Texas Instruments TAS5086 ALSA SoC Codec Driver"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack475699.44%1157.89%
Axel Lin70.15%15.26%
Kuninori Morimoto50.10%15.26%
Takashi Iwai40.08%15.26%
Mark Brown40.08%15.26%
Sachin Kamat30.06%15.26%
Lars-Peter Clausen20.04%15.26%
Wei Yongjun10.02%15.26%
Colin Ian King10.02%15.26%
Total4783100.00%19100.00%
Directory: sound/soc/codecs
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.