From: "Damien.Horsley" Damien.Horsley@imgtec.com
Add driver for Texas Instruments pcm3168a codec
Signed-off-by: Damien.Horsley Damien.Horsley@imgtec.com --- sound/soc/codecs/Kconfig | 17 + sound/soc/codecs/Makefile | 6 + sound/soc/codecs/pcm3168a-i2c.c | 66 ++++ sound/soc/codecs/pcm3168a-spi.c | 65 ++++ sound/soc/codecs/pcm3168a.c | 766 ++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/pcm3168a.h | 111 ++++++ 6 files changed, 1031 insertions(+) create mode 100644 sound/soc/codecs/pcm3168a-i2c.c create mode 100644 sound/soc/codecs/pcm3168a-spi.c create mode 100644 sound/soc/codecs/pcm3168a.c create mode 100644 sound/soc/codecs/pcm3168a.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 2ab2436..3e5c54b 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -88,6 +88,8 @@ config SND_SOC_ALL_CODECS select SND_SOC_PCM1681 if I2C select SND_SOC_PCM1792A if SPI_MASTER select SND_SOC_PCM3008 + select SND_SOC_PCM3168A_I2C if I2C + select SND_SOC_PCM3168A_SPI if SPI_MASTER select SND_SOC_PCM512x_I2C if I2C select SND_SOC_PCM512x_SPI if SPI_MASTER select SND_SOC_RT286 if I2C @@ -525,6 +527,21 @@ config SND_SOC_PCM1792A config SND_SOC_PCM3008 tristate
+config SND_SOC_PCM3168A + tristate + +config SND_SOC_PCM3168A_I2C + tristate "Texas Instruments PCM3168A CODEC - I2C" + depends on I2C + select SND_SOC_PCM3168A + select REGMAP_I2C + +config SND_SOC_PCM3168A_SPI + tristate "Texas Instruments PCM3168A CODEC - SPI" + depends on SPI_MASTER + select SND_SOC_PCM3168A + select REGMAP_SPI + config SND_SOC_PCM512x tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 8438d79..5c90439 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -81,6 +81,9 @@ snd-soc-nau8825-objs := nau8825.o snd-soc-pcm1681-objs := pcm1681.o snd-soc-pcm1792a-codec-objs := pcm1792a.o snd-soc-pcm3008-objs := pcm3008.o +snd-soc-pcm3168a-objs := pcm3168a.o +snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o +snd-soc-pcm3168a-spi-objs := pcm3168a-spi.o snd-soc-pcm512x-objs := pcm512x.o snd-soc-pcm512x-i2c-objs := pcm512x-i2c.o snd-soc-pcm512x-spi-objs := pcm512x-spi.o @@ -280,6 +283,9 @@ obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o obj-$(CONFIG_SND_SOC_PCM1792A) += snd-soc-pcm1792a-codec.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o +obj-$(CONFIG_SND_SOC_PCM3168A) += snd-soc-pcm3168a.o +obj-$(CONFIG_SND_SOC_PCM3168A_I2C) += snd-soc-pcm3168a-i2c.o +obj-$(CONFIG_SND_SOC_PCM3168A_SPI) += snd-soc-pcm3168a-spi.o obj-$(CONFIG_SND_SOC_PCM512x) += snd-soc-pcm512x.o obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd-soc-pcm512x-i2c.o obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o diff --git a/sound/soc/codecs/pcm3168a-i2c.c b/sound/soc/codecs/pcm3168a-i2c.c new file mode 100644 index 0000000..6feb090 --- /dev/null +++ b/sound/soc/codecs/pcm3168a-i2c.c @@ -0,0 +1,66 @@ +/* + * PCM3168A codec i2c driver + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * + * Author: Damien Horsley Damien.Horsley@imgtec.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> + +#include <sound/soc.h> + +#include "pcm3168a.h" + +static int pcm3168a_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(i2c, &pcm3168a_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return pcm3168a_probe(&i2c->dev, regmap); +} + +static int pcm3168a_i2c_remove(struct i2c_client *i2c) +{ + pcm3168a_remove(&i2c->dev); + + return 0; +} + +static const struct i2c_device_id pcm3168a_i2c_id[] = { + { "pcm3168a", }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pcm3168a_i2c_id); + +static const struct of_device_id pcm3168a_of_match[] = { + { .compatible = "ti,pcm3168a", }, + { } +}; +MODULE_DEVICE_TABLE(of, pcm3168a_of_match); + +static struct i2c_driver pcm3168a_i2c_driver = { + .probe = pcm3168a_i2c_probe, + .remove = pcm3168a_i2c_remove, + .id_table = pcm3168a_i2c_id, + .driver = { + .name = "pcm3168a", + .of_match_table = pcm3168a_of_match, + .pm = &pcm3168a_pm_ops, + }, +}; +module_i2c_driver(pcm3168a_i2c_driver); + +MODULE_DESCRIPTION("PCM3168A I2C codec driver"); +MODULE_AUTHOR("Damien Horsley Damien.Horsley@imgtec.com"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3168a-spi.c b/sound/soc/codecs/pcm3168a-spi.c new file mode 100644 index 0000000..03945a2 --- /dev/null +++ b/sound/soc/codecs/pcm3168a-spi.c @@ -0,0 +1,65 @@ +/* + * PCM3168A codec spi driver + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * + * Author: Damien Horsley Damien.Horsley@imgtec.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/spi/spi.h> + +#include <sound/soc.h> + +#include "pcm3168a.h" + +static int pcm3168a_spi_probe(struct spi_device *spi) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &pcm3168a_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return pcm3168a_probe(&spi->dev, regmap); +} + +static int pcm3168a_spi_remove(struct spi_device *spi) +{ + pcm3168a_remove(&spi->dev); + + return 0; +} + +static const struct spi_device_id pcm3168a_spi_id[] = { + { "pcm3168a", }, + { }, +}; +MODULE_DEVICE_TABLE(spi, pcm3168a_spi_id); + +static const struct of_device_id pcm3168a_of_match[] = { + { .compatible = "ti,pcm3168a", }, + { } +}; +MODULE_DEVICE_TABLE(of, pcm3168a_of_match); + +static struct spi_driver pcm3168a_spi_driver = { + .probe = pcm3168a_spi_probe, + .remove = pcm3168a_spi_remove, + .id_table = pcm3168a_spi_id, + .driver = { + .name = "pcm3168a", + .of_match_table = pcm3168a_of_match, + .pm = &pcm3168a_pm_ops, + }, +}; +module_spi_driver(pcm3168a_spi_driver); + +MODULE_DESCRIPTION("PCM3168A SPI codec driver"); +MODULE_AUTHOR("Damien Horsley Damien.Horsley@imgtec.com"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c new file mode 100644 index 0000000..c334a45 --- /dev/null +++ b/sound/soc/codecs/pcm3168a.c @@ -0,0 +1,766 @@ +/* + * PCM3168A codec driver + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * + * Author: Damien Horsley Damien.Horsley@imgtec.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> + +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#include "pcm3168a.h" + +#define PCM3168A_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_3LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +#define PCM3168A_FMT_I2S 0x0 +#define PCM3168A_FMT_LEFT_J 0x1 +#define PCM3168A_FMT_RIGHT_J 0x2 +#define PCM3168A_FMT_RIGHT_J_16 0x3 +#define PCM3168A_FMT_DSP_A 0x4 +#define PCM3168A_FMT_DSP_B 0x5 +#define PCM3168A_FMT_DSP_MASK 0x4 + +#define PCM3168A_NUM_SUPPLIES 6 +static const char *const pcm3168a_supply_names[PCM3168A_NUM_SUPPLIES] = { + "VDD1", + "VDD2", + "VCCAD1", + "VCCAD2", + "VCCDA1", + "VCCDA2" +}; + +struct pcm3168a_priv { + struct regulator_bulk_data supplies[PCM3168A_NUM_SUPPLIES]; + struct regmap *regmap; + struct clk *scki; + bool adc_slave_mode; + bool dac_slave_mode; + unsigned long sysclk; + unsigned int adc_fmt; + unsigned int dac_fmt; +}; + +static const char *const pcm3168a_roll_off[] = { "Sharp", "Slow" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_d1_roll_off, PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_FLT_SHIFT, pcm3168a_roll_off); +static SOC_ENUM_SINGLE_DECL(pcm3168a_d2_roll_off, PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_FLT_SHIFT + 1, pcm3168a_roll_off); +static SOC_ENUM_SINGLE_DECL(pcm3168a_d3_roll_off, PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_FLT_SHIFT + 2, pcm3168a_roll_off); +static SOC_ENUM_SINGLE_DECL(pcm3168a_d4_roll_off, PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_FLT_SHIFT + 3, pcm3168a_roll_off); + +static const char *const pcm3168a_volume_type[] = { + "Individual", "Master + Individual" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_volume_type, PCM3168A_DAC_ATT_DEMP_ZF, + PCM3168A_DAC_ATMDDA_SHIFT, pcm3168a_volume_type); + +static const char *const pcm3168a_att_speed_mult[] = { "2048", "4096" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_att_mult, PCM3168A_DAC_ATT_DEMP_ZF, + PCM3168A_DAC_ATSPDA_SHIFT, pcm3168a_att_speed_mult); + +static const char *const pcm3168a_demp[] = { + "Disabled", "48khz", "44.1khz", "32khz" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_demp, PCM3168A_DAC_ATT_DEMP_ZF, + PCM3168A_DAC_DEMP_SHIFT, pcm3168a_demp); + +static const char *const pcm3168a_zf_func[] = { + "DAC 1/2/3/4 AND", "DAC 1/2/3/4 OR", "DAC 1/2/3 AND", + "DAC 1/2/3 OR", "DAC 4 AND", "DAC 4 OR" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_zf_func, PCM3168A_DAC_ATT_DEMP_ZF, + PCM3168A_DAC_AZRO_SHIFT, pcm3168a_zf_func); + +static const char *const pcm3168a_pol[] = { "Active High", "Active Low" }; + +static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_zf_pol, PCM3168A_DAC_ATT_DEMP_ZF, + PCM3168A_DAC_ATSPDA_SHIFT, pcm3168a_pol); + +static const char *const pcm3168a_con[] = { "Differential", "Single-Ended" }; + +static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc1_con, PCM3168A_ADC_SEAD, + 0, 1, pcm3168a_con); +static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc2_con, PCM3168A_ADC_SEAD, + 2, 3, pcm3168a_con); +static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc3_con, PCM3168A_ADC_SEAD, + 4, 5, pcm3168a_con); + +static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_volume_type, PCM3168A_ADC_ATT_OVF, + PCM3168A_ADC_ATMDAD_SHIFT, pcm3168a_volume_type); + +static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_att_mult, PCM3168A_ADC_ATT_OVF, + PCM3168A_ADC_ATSPAD_SHIFT, pcm3168a_att_speed_mult); + +static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_ov_pol, PCM3168A_ADC_ATT_OVF, + PCM3168A_ADC_OVFP_SHIFT, pcm3168a_pol); + +/* -100db to 0db, register values 0-54 cause mute */ +static const DECLARE_TLV_DB_SCALE(pcm3168a_dac_tlv, -10050, 50, 1); + +/* -100db to 20db, register values 0-14 cause mute */ +static const DECLARE_TLV_DB_SCALE(pcm3168a_adc_tlv, -10050, 50, 1); + +static const struct snd_kcontrol_new pcm3168a_snd_controls[] = { + SOC_SINGLE("DAC Power-Save Switch", PCM3168A_DAC_PWR_MST_FMT, + PCM3168A_DAC_PSMDA_SHIFT, 1, 1), + SOC_ENUM("DAC1 Digital Filter roll-off", pcm3168a_d1_roll_off), + SOC_ENUM("DAC2 Digital Filter roll-off", pcm3168a_d2_roll_off), + SOC_ENUM("DAC3 Digital Filter roll-off", pcm3168a_d3_roll_off), + SOC_ENUM("DAC4 Digital Filter roll-off", pcm3168a_d4_roll_off), + SOC_DOUBLE("DAC1 Invert Switch", PCM3168A_DAC_INV, 0, 1, 1, 0), + SOC_DOUBLE("DAC2 Invert Switch", PCM3168A_DAC_INV, 2, 3, 1, 0), + SOC_DOUBLE("DAC3 Invert Switch", PCM3168A_DAC_INV, 4, 5, 1, 0), + SOC_DOUBLE("DAC4 Invert Switch", PCM3168A_DAC_INV, 6, 7, 1, 0), + PCM3168A_DOUBLE_STS("DAC1 Zero Flag", PCM3168A_DAC_ZERO, 0, 1, 1, 0), + PCM3168A_DOUBLE_STS("DAC2 Zero Flag", PCM3168A_DAC_ZERO, 2, 3, 1, 0), + PCM3168A_DOUBLE_STS("DAC3 Zero Flag", PCM3168A_DAC_ZERO, 4, 5, 1, 0), + PCM3168A_DOUBLE_STS("DAC4 Zero Flag", PCM3168A_DAC_ZERO, 6, 7, 1, 0), + SOC_ENUM("DAC Volume Control Type", pcm3168a_dac_volume_type), + SOC_ENUM("DAC Volume Rate Multiplier", pcm3168a_dac_att_mult), + SOC_ENUM("DAC De-Emphasis", pcm3168a_dac_demp), + SOC_ENUM("DAC Zero Flag Function", pcm3168a_dac_zf_func), + SOC_ENUM("DAC Zero Flag Polarity", pcm3168a_dac_zf_pol), + SOC_SINGLE_RANGE_TLV("Master Playback Volume", + PCM3168A_DAC_VOL_MASTER, 0, 54, 255, 0, + pcm3168a_dac_tlv), + SOC_DOUBLE_R_RANGE_TLV("DAC1 Playback Volume", + PCM3168A_DAC_VOL_CHAN_START, + PCM3168A_DAC_VOL_CHAN_START + 1, + 0, 54, 255, 0, pcm3168a_dac_tlv), + SOC_DOUBLE_R_RANGE_TLV("DAC2 Playback Volume", + PCM3168A_DAC_VOL_CHAN_START + 2, + PCM3168A_DAC_VOL_CHAN_START + 3, + 0, 54, 255, 0, pcm3168a_dac_tlv), + SOC_DOUBLE_R_RANGE_TLV("DAC3 Playback Volume", + PCM3168A_DAC_VOL_CHAN_START + 4, + PCM3168A_DAC_VOL_CHAN_START + 5, + 0, 54, 255, 0, pcm3168a_dac_tlv), + SOC_DOUBLE_R_RANGE_TLV("DAC4 Playback Volume", + PCM3168A_DAC_VOL_CHAN_START + 6, + PCM3168A_DAC_VOL_CHAN_START + 7, + 0, 54, 255, 0, pcm3168a_dac_tlv), + SOC_SINGLE("ADC1 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_BYP_SHIFT, 1, 1), + SOC_SINGLE("ADC2 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_BYP_SHIFT + 1, 1, 1), + SOC_SINGLE("ADC3 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_BYP_SHIFT + 2, 1, 1), + SOC_ENUM("ADC1 Connection Type", pcm3168a_adc1_con), + SOC_ENUM("ADC2 Connection Type", pcm3168a_adc2_con), + SOC_ENUM("ADC3 Connection Type", pcm3168a_adc3_con), + SOC_DOUBLE("ADC1 Invert Switch", PCM3168A_ADC_INV, 0, 1, 1, 0), + SOC_DOUBLE("ADC2 Invert Switch", PCM3168A_ADC_INV, 2, 3, 1, 0), + SOC_DOUBLE("ADC3 Invert Switch", PCM3168A_ADC_INV, 4, 5, 1, 0), + SOC_DOUBLE("ADC1 Mute Switch", PCM3168A_ADC_MUTE, 0, 1, 1, 0), + SOC_DOUBLE("ADC2 Mute Switch", PCM3168A_ADC_MUTE, 2, 3, 1, 0), + SOC_DOUBLE("ADC3 Mute Switch", PCM3168A_ADC_MUTE, 4, 5, 1, 0), + PCM3168A_DOUBLE_STS("ADC1 Overflow Flag", PCM3168A_ADC_OV, 0, 1, 1, 0), + PCM3168A_DOUBLE_STS("ADC2 Overflow Flag", PCM3168A_ADC_OV, 2, 3, 1, 0), + PCM3168A_DOUBLE_STS("ADC3 Overflow Flag", PCM3168A_ADC_OV, 4, 5, 1, 0), + SOC_ENUM("ADC Volume Control Type", pcm3168a_adc_volume_type), + SOC_ENUM("ADC Volume Rate Multiplier", pcm3168a_adc_att_mult), + SOC_ENUM("ADC Overflow Flag Polarity", pcm3168a_adc_ov_pol), + SOC_SINGLE_RANGE_TLV("Master Capture Volume", + PCM3168A_ADC_VOL_MASTER, 0, 14, 255, 0, + pcm3168a_adc_tlv), + SOC_DOUBLE_R_RANGE_TLV("ADC1 Capture Volume", + PCM3168A_ADC_VOL_CHAN_START, + PCM3168A_ADC_VOL_CHAN_START + 1, + 0, 14, 255, 0, pcm3168a_adc_tlv), + SOC_DOUBLE_R_RANGE_TLV("ADC2 Capture Volume", + PCM3168A_ADC_VOL_CHAN_START + 2, + PCM3168A_ADC_VOL_CHAN_START + 3, + 0, 14, 255, 0, pcm3168a_adc_tlv), + SOC_DOUBLE_R_RANGE_TLV("ADC3 Capture Volume", + PCM3168A_ADC_VOL_CHAN_START + 4, + PCM3168A_ADC_VOL_CHAN_START + 5, + 0, 14, 255, 0, pcm3168a_adc_tlv) +}; + +static const struct snd_soc_dapm_widget pcm3168a_dapm_widgets[] = { + SND_SOC_DAPM_DAC("DAC1", "Playback", PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_OPEDA_SHIFT, 1), + SND_SOC_DAPM_DAC("DAC2", "Playback", PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_OPEDA_SHIFT + 1, 1), + SND_SOC_DAPM_DAC("DAC3", "Playback", PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_OPEDA_SHIFT + 2, 1), + SND_SOC_DAPM_DAC("DAC4", "Playback", PCM3168A_DAC_OP_FLT, + PCM3168A_DAC_OPEDA_SHIFT + 3, 1), + + SND_SOC_DAPM_OUTPUT("AOUT1L"), + SND_SOC_DAPM_OUTPUT("AOUT1R"), + SND_SOC_DAPM_OUTPUT("AOUT2L"), + SND_SOC_DAPM_OUTPUT("AOUT2R"), + SND_SOC_DAPM_OUTPUT("AOUT3L"), + SND_SOC_DAPM_OUTPUT("AOUT3R"), + SND_SOC_DAPM_OUTPUT("AOUT4L"), + SND_SOC_DAPM_OUTPUT("AOUT4R"), + + SND_SOC_DAPM_ADC("ADC1", "Capture", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_PSVAD_SHIFT, 1), + SND_SOC_DAPM_ADC("ADC2", "Capture", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_PSVAD_SHIFT + 1, 1), + SND_SOC_DAPM_ADC("ADC3", "Capture", PCM3168A_ADC_PWR_HPFB, + PCM3168A_ADC_PSVAD_SHIFT + 2, 1), + + SND_SOC_DAPM_INPUT("AIN1L"), + SND_SOC_DAPM_INPUT("AIN1R"), + SND_SOC_DAPM_INPUT("AIN2L"), + SND_SOC_DAPM_INPUT("AIN2R"), + SND_SOC_DAPM_INPUT("AIN3L"), + SND_SOC_DAPM_INPUT("AIN3R") +}; + +static const struct snd_soc_dapm_route pcm3168a_dapm_routes[] = { + /* Playback */ + { "AOUT1L", NULL, "DAC1" }, + { "AOUT1R", NULL, "DAC1" }, + + { "AOUT2L", NULL, "DAC2" }, + { "AOUT2R", NULL, "DAC2" }, + + { "AOUT3L", NULL, "DAC3" }, + { "AOUT3R", NULL, "DAC3" }, + + { "AOUT4L", NULL, "DAC4" }, + { "AOUT4R", NULL, "DAC4" }, + + /* Capture */ + { "ADC1", NULL, "AIN1L" }, + { "ADC1", NULL, "AIN1R" }, + + { "ADC2", NULL, "AIN2L" }, + { "ADC2", NULL, "AIN2R" }, + + { "ADC3", NULL, "AIN3L" }, + { "ADC3", NULL, "AIN3R" } +}; + +static unsigned int pcm3168a_scki_ratios[] = { + 768, + 512, + 384, + 256, + 192, + 128 +}; + +#define PCM3168A_NUM_SCKI_RATIOS_DAC ARRAY_SIZE(pcm3168a_scki_ratios) +#define PCM3168A_NUM_SCKI_RATIOS_ADC (ARRAY_SIZE(pcm3168a_scki_ratios) - 2) + +#define PCM1368A_MAX_SYSCLK 36864000 + +static int pcm3168a_reset(struct pcm3168a_priv *pcm3168a) +{ + int ret; + + ret = regmap_write(pcm3168a->regmap, PCM3168A_RST_SMODE, 0); + if (ret) + return ret; + + /* Internal reset is de-asserted after 3846 SCKI cycles */ + msleep(DIV_ROUND_UP(3846 * 1000, pcm3168a->sysclk)); + + return regmap_write(pcm3168a->regmap, PCM3168A_RST_SMODE, + PCM3168A_MRST_MASK | PCM3168A_SRST_MASK); +} + +static int pcm3168a_digital_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec); + + regmap_write(pcm3168a->regmap, PCM3168A_DAC_MUTE, mute ? 0xff : 0); + + return 0; +} + +static int pcm3168a_set_dai_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(dai->codec); + + if (freq > PCM1368A_MAX_SYSCLK) + return -EINVAL; + + pcm3168a->sysclk = freq; + + return 0; +} + +static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai, + unsigned int format, bool dac) +{ + struct snd_soc_codec *codec = dai->codec; + struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec); + u32 fmt, reg, mask, shift; + bool slave_mode; + + switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_LEFT_J: + fmt = PCM3168A_FMT_LEFT_J; + break; + case SND_SOC_DAIFMT_I2S: + fmt = PCM3168A_FMT_I2S; + break; + case SND_SOC_DAIFMT_RIGHT_J: + fmt = PCM3168A_FMT_RIGHT_J; + break; + case SND_SOC_DAIFMT_DSP_A: + fmt = PCM3168A_FMT_DSP_A; + break; + case SND_SOC_DAIFMT_DSP_B: + fmt = PCM3168A_FMT_DSP_B; + break; + default: + dev_err(codec->dev, "unsupported dai format\n"); + return -EINVAL; + } + + switch (format & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + slave_mode = true; + break; + case SND_SOC_DAIFMT_CBM_CFM: + slave_mode = false; + break; + default: + dev_err(codec->dev, "unsupported master/slave mode\n"); + return -EINVAL; + } + + switch (format & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + default: + return -EINVAL; + } + + if (dac) { + reg = PCM3168A_DAC_PWR_MST_FMT; + mask = PCM3168A_DAC_FMT_MASK; + shift = PCM3168A_DAC_FMT_SHIFT; + pcm3168a->dac_slave_mode = slave_mode; + pcm3168a->dac_fmt = fmt; + } else { + reg = PCM3168A_ADC_MST_FMT; + mask = PCM3168A_ADC_FMTAD_MASK; + shift = PCM3168A_ADC_FMTAD_SHIFT; + pcm3168a->adc_slave_mode = slave_mode; + pcm3168a->adc_fmt = fmt; + } + + regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift); + + return 0; +} + +static int pcm3168a_set_dai_fmt_dac(struct snd_soc_dai *dai, + unsigned int format) +{ + return pcm3168a_set_dai_fmt(dai, format, true); +} + +static int pcm3168a_set_dai_fmt_adc(struct snd_soc_dai *dai, + unsigned int format) +{ + return pcm3168a_set_dai_fmt(dai, format, false); +} + +static int pcm3168a_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 pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec); + bool tx, slave_mode; + u32 val, mask, shift, reg; + unsigned int rate, channels, fmt, ratio, max_ratio; + int i; + snd_pcm_format_t format; + + rate = params_rate(params); + format = params_format(params); + channels = params_channels(params); + + ratio = pcm3168a->sysclk / rate; + + tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + if (tx) { + max_ratio = PCM3168A_NUM_SCKI_RATIOS_DAC; + reg = PCM3168A_DAC_PWR_MST_FMT; + mask = PCM3168A_DAC_MSDA_MASK; + shift = PCM3168A_DAC_MSDA_SHIFT; + slave_mode = pcm3168a->dac_slave_mode; + fmt = pcm3168a->dac_fmt; + } else { + max_ratio = PCM3168A_NUM_SCKI_RATIOS_ADC; + reg = PCM3168A_ADC_MST_FMT; + mask = PCM3168A_ADC_MSAD_MASK; + shift = PCM3168A_ADC_MSAD_SHIFT; + slave_mode = pcm3168a->adc_slave_mode; + fmt = pcm3168a->adc_fmt; + } + + for (i = 0; i < max_ratio; i++) { + if (pcm3168a_scki_ratios[i] == ratio) + break; + } + + if (i == max_ratio) { + dev_err(codec->dev, "unsupported sysclk ratio\n"); + return -EINVAL; + } + + if ((!slave_mode || (fmt & PCM3168A_FMT_DSP_MASK)) && + (format == SNDRV_PCM_FORMAT_S24_3LE)) { + dev_err(codec->dev, "48-bit frames not supported in master mode or slave mode using DSP(A/B)\n"); + return -EINVAL; + } + + if ((!slave_mode || ((fmt != PCM3168A_FMT_RIGHT_J) && + (fmt != PCM3168A_FMT_LEFT_J))) && + (format == SNDRV_PCM_FORMAT_S16)) { + dev_err(codec->dev, "32-bit frames are supported only for slave mode using left/right justified\n"); + return -EINVAL; + } + + val = slave_mode ? 0 : ((i + 1) << shift); + + regmap_update_bits(pcm3168a->regmap, reg, mask, val); + + if (tx) { + mask = PCM3168A_DAC_FMT_MASK; + shift = PCM3168A_DAC_FMT_SHIFT; + } else { + mask = PCM3168A_ADC_FMTAD_MASK; + shift = PCM3168A_ADC_FMTAD_SHIFT; + } + + /* + * Justification has no effect for S32 and S16 as the whole frame + * is filled with the samples, but the register field + * must be set to a specific value for correct operation + */ + if ((fmt == PCM3168A_FMT_RIGHT_J) && + (format == SNDRV_PCM_FORMAT_S32)) { + fmt = PCM3168A_FMT_LEFT_J; + } else if (format == SNDRV_PCM_FORMAT_S16) { + fmt = PCM3168A_FMT_RIGHT_J_16; + } + + regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift); + + return 0; +} + +static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = { + .set_fmt = pcm3168a_set_dai_fmt_dac, + .set_sysclk = pcm3168a_set_dai_sysclk, + .hw_params = pcm3168a_hw_params, + .digital_mute = pcm3168a_digital_mute +}; + +static const struct snd_soc_dai_ops pcm3168a_adc_dai_ops = { + .set_fmt = pcm3168a_set_dai_fmt_adc, + .set_sysclk = pcm3168a_set_dai_sysclk, + .hw_params = pcm3168a_hw_params +}; + +static struct snd_soc_dai_driver pcm3168a_dais[] = { + { + .name = "pcm3168a-dac", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = PCM3168A_FORMATS + }, + .ops = &pcm3168a_dac_dai_ops + }, + { + .name = "pcm3168a-adc", + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 6, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = PCM3168A_FORMATS + }, + .ops = &pcm3168a_adc_dai_ops + }, +}; + +static const struct reg_default pcm3168a_reg_default[] = { + { PCM3168A_RST_SMODE, PCM3168A_MRST_MASK | PCM3168A_SRST_MASK }, + { PCM3168A_DAC_PWR_MST_FMT, 0x00 }, + { PCM3168A_DAC_OP_FLT, 0x00 }, + { PCM3168A_DAC_INV, 0x00 }, + { PCM3168A_DAC_MUTE, 0x00 }, + { PCM3168A_DAC_ZERO, 0x00 }, + { PCM3168A_DAC_ATT_DEMP_ZF, 0x00 }, + { PCM3168A_DAC_VOL_MASTER, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 1, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 2, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 3, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 4, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 5, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 6, 0xff }, + { PCM3168A_DAC_VOL_CHAN_START + 7, 0xff }, + { PCM3168A_ADC_SMODE, 0x00 }, + { PCM3168A_ADC_MST_FMT, 0x00 }, + { PCM3168A_ADC_PWR_HPFB, 0x00 }, + { PCM3168A_ADC_SEAD, 0x00 }, + { PCM3168A_ADC_INV, 0x00 }, + { PCM3168A_ADC_MUTE, 0x00 }, + { PCM3168A_ADC_OV, 0x00 }, + { PCM3168A_ADC_ATT_OVF, 0x00 }, + { PCM3168A_ADC_VOL_MASTER, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START + 1, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START + 2, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START + 3, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START + 4, 0xd3 }, + { PCM3168A_ADC_VOL_CHAN_START + 5, 0xd3 } +}; + +static bool pcm3168a_readable_register(struct device *dev, unsigned int reg) +{ + if (reg >= PCM3168A_RST_SMODE) + return true; + else + return false; +} + +static bool pcm3168a_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case PCM3168A_DAC_ZERO: + case PCM3168A_ADC_OV: + return true; + default: + return false; + } +} + +static bool pcm3168a_writeable_register(struct device *dev, unsigned int reg) +{ + if (reg < PCM3168A_RST_SMODE) + return false; + + switch (reg) { + case PCM3168A_DAC_ZERO: + case PCM3168A_ADC_OV: + return false; + default: + return true; + } +} + +const struct regmap_config pcm3168a_regmap = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = PCM3168A_ADC_VOL_CHAN_START + 5, + .reg_defaults = pcm3168a_reg_default, + .num_reg_defaults = ARRAY_SIZE(pcm3168a_reg_default), + .readable_reg = pcm3168a_readable_register, + .volatile_reg = pcm3168a_volatile_register, + .writeable_reg = pcm3168a_writeable_register, + .cache_type = REGCACHE_FLAT +}; +EXPORT_SYMBOL_GPL(pcm3168a_regmap); + +static const struct snd_soc_codec_driver pcm3168a_driver = { + .idle_bias_off = true, + .controls = pcm3168a_snd_controls, + .num_controls = ARRAY_SIZE(pcm3168a_snd_controls), + .dapm_widgets = pcm3168a_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(pcm3168a_dapm_widgets), + .dapm_routes = pcm3168a_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(pcm3168a_dapm_routes) +}; + +int pcm3168a_probe(struct device *dev, struct regmap *regmap) +{ + struct pcm3168a_priv *pcm3168a; + int ret, i; + + pcm3168a = devm_kzalloc(dev, sizeof(*pcm3168a), GFP_KERNEL); + if (pcm3168a == NULL) + return -ENOMEM; + + dev_set_drvdata(dev, pcm3168a); + + pcm3168a->scki = devm_clk_get(dev, "scki"); + if (IS_ERR(pcm3168a->scki)) { + if (PTR_ERR(pcm3168a->scki) != -EPROBE_DEFER) + dev_err(dev, "failed to acquire clock 'scki'\n"); + return PTR_ERR(pcm3168a->scki); + } + + ret = clk_prepare_enable(pcm3168a->scki); + if (ret) { + dev_err(dev, "Failed to enable mclk: %d\n", ret); + return ret; + } + + pcm3168a->sysclk = clk_get_rate(pcm3168a->scki); + + for (i = 0; i < ARRAY_SIZE(pcm3168a->supplies); i++) + pcm3168a->supplies[i].supply = pcm3168a_supply_names[i]; + + ret = devm_regulator_bulk_get(dev, + ARRAY_SIZE(pcm3168a->supplies), pcm3168a->supplies); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "failed to request supplies: %d\n", ret); + goto err_clk; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); + if (ret) { + dev_err(dev, "failed to enable supplies: %d\n", ret); + goto err_clk; + } + + pcm3168a->regmap = regmap; + if (IS_ERR(pcm3168a->regmap)) { + ret = PTR_ERR(pcm3168a->regmap); + dev_err(dev, "failed to allocate regmap: %d\n", ret); + goto err_regulator; + } + + ret = pcm3168a_reset(pcm3168a); + if (ret) { + dev_err(dev, "Failed to reset device: %d\n", ret); + goto err_regulator; + } + + ret = snd_soc_register_codec(dev, &pcm3168a_driver, pcm3168a_dais, + ARRAY_SIZE(pcm3168a_dais)); + if (ret) { + dev_err(dev, "failed to register codec: %d\n", ret); + goto err_regulator; + } + + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + pm_runtime_idle(dev); + + return 0; + +err_regulator: + regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); +err_clk: + clk_disable_unprepare(pcm3168a->scki); + + return ret; +} +EXPORT_SYMBOL_GPL(pcm3168a_probe); + +void pcm3168a_remove(struct device *dev) +{ + struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev); + + snd_soc_unregister_codec(dev); + pm_runtime_disable(dev); + regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); + clk_disable_unprepare(pcm3168a->scki); +} +EXPORT_SYMBOL_GPL(pcm3168a_remove); + +#ifdef CONFIG_PM +static int pcm3168a_rt_resume(struct device *dev) +{ + struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(pcm3168a->scki); + if (ret) { + dev_err(dev, "Failed to enable mclk: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); + if (ret) { + dev_err(dev, "Failed to enable supplies: %d\n", ret); + goto err_clk; + } + + ret = pcm3168a_reset(pcm3168a); + if (ret) { + dev_err(dev, "Failed to reset device: %d\n", ret); + goto err_regulator; + } + + regcache_cache_only(pcm3168a->regmap, false); + + regcache_mark_dirty(pcm3168a->regmap); + + ret = regcache_sync(pcm3168a->regmap); + if (ret) { + dev_err(dev, "Failed to sync regmap: %d\n", ret); + goto err_regulator; + } + + return 0; + +err_regulator: + regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); +err_clk: + clk_disable_unprepare(pcm3168a->scki); + + return ret; +} + +static int pcm3168a_rt_suspend(struct device *dev) +{ + struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev); + + regcache_cache_only(pcm3168a->regmap, true); + + regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies), + pcm3168a->supplies); + + clk_disable_unprepare(pcm3168a->scki); + + return 0; +} +#endif + +const struct dev_pm_ops pcm3168a_pm_ops = { + SET_RUNTIME_PM_OPS(pcm3168a_rt_suspend, pcm3168a_rt_resume, NULL) +}; +EXPORT_SYMBOL_GPL(pcm3168a_pm_ops); + +MODULE_DESCRIPTION("PCM3168A codec driver"); +MODULE_AUTHOR("Damien Horsley Damien.Horsley@imgtec.com"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/pcm3168a.h b/sound/soc/codecs/pcm3168a.h new file mode 100644 index 0000000..96ad593 --- /dev/null +++ b/sound/soc/codecs/pcm3168a.h @@ -0,0 +1,111 @@ +/* + * PCM3168A codec driver header + * + * Copyright (C) 2015 Imagination Technologies Ltd. + * + * Author: Damien Horsley Damien.Horsley@imgtec.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#ifndef __PCM3168A_H__ +#define __PCM3168A_H__ + +extern const struct dev_pm_ops pcm3168a_pm_ops; +extern const struct regmap_config pcm3168a_regmap; + +extern int pcm3168a_probe(struct device *dev, struct regmap *regmap); +extern void pcm3168a_remove(struct device *dev); + +#define PCM3168A_RST_SMODE 0x40 +#define PCM3168A_MRST_MASK 0x80 +#define PCM3168A_SRST_MASK 0x40 +#define PCM3168A_DAC_SRDA_SHIFT 0 +#define PCM3168A_DAC_SRDA_MASK 0x3 + +#define PCM3168A_DAC_PWR_MST_FMT 0x41 +#define PCM3168A_DAC_PSMDA_SHIFT 7 +#define PCM3168A_DAC_PSMDA_MASK 0x80 +#define PCM3168A_DAC_MSDA_SHIFT 4 +#define PCM3168A_DAC_MSDA_MASK 0x70 +#define PCM3168A_DAC_FMT_SHIFT 0 +#define PCM3168A_DAC_FMT_MASK 0xf + +#define PCM3168A_DAC_OP_FLT 0x42 +#define PCM3168A_DAC_OPEDA_SHIFT 4 +#define PCM3168A_DAC_OPEDA_MASK 0xf0 +#define PCM3168A_DAC_FLT_SHIFT 0 +#define PCM3168A_DAC_FLT_MASK 0xf + +#define PCM3168A_DAC_INV 0x43 + +#define PCM3168A_DAC_MUTE 0x44 + +#define PCM3168A_DAC_ZERO 0x45 + +#define PCM3168A_DAC_ATT_DEMP_ZF 0x46 +#define PCM3168A_DAC_ATMDDA_MASK 0x80 +#define PCM3168A_DAC_ATMDDA_SHIFT 7 +#define PCM3168A_DAC_ATSPDA_MASK 0x40 +#define PCM3168A_DAC_ATSPDA_SHIFT 6 +#define PCM3168A_DAC_DEMP_SHIFT 4 +#define PCM3168A_DAC_DEMP_MASK 0x30 +#define PCM3168A_DAC_AZRO_SHIFT 1 +#define PCM3168A_DAC_AZRO_MASK 0xe +#define PCM3168A_DAC_ZREV_MASK 0x1 +#define PCM3168A_DAC_ZREV_SHIFT 0 + +#define PCM3168A_DAC_VOL_MASTER 0x47 + +#define PCM3168A_DAC_VOL_CHAN_START 0x48 + +#define PCM3168A_ADC_SMODE 0x50 +#define PCM3168A_ADC_SRAD_SHIFT 0 +#define PCM3168A_ADC_SRAD_MASK 0x3 + +#define PCM3168A_ADC_MST_FMT 0x51 +#define PCM3168A_ADC_MSAD_SHIFT 4 +#define PCM3168A_ADC_MSAD_MASK 0x70 +#define PCM3168A_ADC_FMTAD_SHIFT 0 +#define PCM3168A_ADC_FMTAD_MASK 0x7 + +#define PCM3168A_ADC_PWR_HPFB 0x52 +#define PCM3168A_ADC_PSVAD_SHIFT 4 +#define PCM3168A_ADC_PSVAD_MASK 0x70 +#define PCM3168A_ADC_BYP_SHIFT 0 +#define PCM3168A_ADC_BYP_MASK 0x7 + +#define PCM3168A_ADC_SEAD 0x53 + +#define PCM3168A_ADC_INV 0x54 + +#define PCM3168A_ADC_MUTE 0x55 + +#define PCM3168A_ADC_OV 0x56 + +#define PCM3168A_ADC_ATT_OVF 0x57 +#define PCM3168A_ADC_ATMDAD_MASK 0x80 +#define PCM3168A_ADC_ATMDAD_SHIFT 7 +#define PCM3168A_ADC_ATSPAD_MASK 0x40 +#define PCM3168A_ADC_ATSPAD_SHIFT 6 +#define PCM3168A_ADC_OVFP_MASK 0x1 +#define PCM3168A_ADC_OVFP_SHIFT 0 + +#define PCM3168A_ADC_VOL_MASTER 0x58 + +#define PCM3168A_ADC_VOL_CHAN_START 0x59 + +#define PCM3168A_DOUBLE_STS(xname, reg, shift_left, shift_right, max, invert) \ +{ \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ + .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ + .put = snd_soc_put_volsw, \ + .access = SNDRV_CTL_ELEM_ACCESS_READ | \ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ + max, invert, 0) \ +} + +#endif