New codec driver for Texas Instruments TLV320ADC3001 and TLV320ADC3101 audio ADCs.

Signed-off-by: Ricard Wanderlof ricardw@axis.com --- sound/soc/codecs/Kconfig | 8 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tlv320adc3xxx.c | 1311 ++++++++++++++++++++++++++++++ 3 files changed, 1321 insertions(+) create mode 100644 sound/soc/codecs/tlv320adc3xxx.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index c033ee7d82e4..22836ca9b478 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -220,6 +220,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_TDA7419 imply SND_SOC_TFA9879 imply SND_SOC_TFA989X + imply SND_SOC_TLV320ADC3XXX imply SND_SOC_TLV320ADCX140 imply SND_SOC_TLV320AIC23_I2C imply SND_SOC_TLV320AIC23_SPI @@ -1496,6 +1497,13 @@ config SND_SOC_TFA989X Note that the driver currently bypasses the built-in "CoolFlux DSP" and does not support (hardware) volume control.

+config SND_SOC_TLV320ADC3XXX + tristate "Texas Instruments TLV320ADC3001/3101 audio ADC" + depends on I2C + help + Enable support for Texas Instruments TLV320ADC3001 and TLV320ADC3101 + ADCs. + config SND_SOC_TLV320AIC23 tristate

diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 485eee75502b..24bc6b34ba2f 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -239,6 +239,7 @@ snd-soc-tda7419-objs := tda7419.o snd-soc-tas2770-objs := tas2770.o snd-soc-tfa9879-objs := tfa9879.o snd-soc-tfa989x-objs := tfa989x.o +snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o snd-soc-tlv320aic23-objs := tlv320aic23.o snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o @@ -574,6 +575,7 @@ obj-$(CONFIG_SND_SOC_TDA7419) += snd-soc-tda7419.o obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o obj-$(CONFIG_SND_SOC_TFA9879) += snd-soc-tfa9879.o obj-$(CONFIG_SND_SOC_TFA989X) += snd-soc-tfa989x.o +obj-$(CONFIG_SND_SOC_TLV320ADC3XXX) += snd-soc-tlv320adc3xxx.o obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI) += snd-soc-tlv320aic23-spi.o diff --git a/sound/soc/codecs/tlv320adc3xxx.c b/sound/soc/codecs/tlv320adc3xxx.c new file mode 100644 index 000000000000..a683bda7eb36 --- /dev/null +++ b/sound/soc/codecs/tlv320adc3xxx.c @@ -0,0 +1,1311 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Based on sound/soc/codecs/tlv320aic3x.c by Vladimir Barinov +// +// Copyright (C) 2010 Mistral Solutions Pvt Ltd. +// Author: Shahina Shaik shahina.s@mistralsolutions.com +// +// Copyright (C) 2014-2018, Ambarella, Inc. +// Author: Dongge wu dgwu@ambarella.com +// +// Copyright (C) 2021 Axis Communications AB +// Author: Ricard Wanderlof ricardw@axis.com +// + +#include <dt-bindings/sound/tlv320adc3xxx.h> +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/io.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/gpio/driver.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/cdev.h> +#include <linux/of_gpio.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h> +#include <sound/initval.h> + +/* + * General definitions defining exported functionality. + */ + +#define ADC3XXX_MICBIAS_PINS 2 + +/* Number of GPIO pins exposed via the gpiolib interface */ +#define ADC3XXX_GPIOS_MAX 2 + +#define ADC3XXX_RATES SNDRV_PCM_RATE_8000_96000 +#define ADC3XXX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_3LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +/* + * PLL modes, to be used for clk_id for set_sysclk callback. + * + * The default behavior (AUTO) is to take the first matching entry in the clock + * table, which is intended to be the PLL based one if there is more than one. + * + * Setting the clock source using simple-card (clocks or + * system-clock-frequency property) sets clk_id = 0 = ADC3XXX_PLL_AUTO. + */ +#define ADC3XXX_PLL_AUTO 0 /* Use first available mode */ +#define ADC3XXX_PLL_ENABLE 1 /* Use PLL for clock generation */ +#define ADC3XXX_PLL_BYPASS 2 /* Don't use PLL for clock generation */ + +/* Register definitions. */ + +#define ADC3XXX_PAGE_SIZE 128 +#define ADC3XXX_REG(page, reg) ((page * ADC3XXX_PAGE_SIZE) + reg) + +/* + * Page 0 registers. + */ + +#define ADC3XXX_PAGE_SELECT ADC3XXX_REG(0, 0) +#define ADC3XXX_RESET ADC3XXX_REG(0, 1) + +/* 2-3 Reserved */ + +#define ADC3XXX_CLKGEN_MUX ADC3XXX_REG(0, 4) +#define ADC3XXX_PLL_PROG_PR ADC3XXX_REG(0, 5) +#define ADC3XXX_PLL_PROG_J ADC3XXX_REG(0, 6) +#define ADC3XXX_PLL_PROG_D_MSB ADC3XXX_REG(0, 7) +#define ADC3XXX_PLL_PROG_D_LSB ADC3XXX_REG(0, 8) + +/* 9-17 Reserved */ + +#define ADC3XXX_ADC_NADC ADC3XXX_REG(0, 18) +#define ADC3XXX_ADC_MADC ADC3XXX_REG(0, 19) +#define ADC3XXX_ADC_AOSR ADC3XXX_REG(0, 20) +#define ADC3XXX_ADC_IADC ADC3XXX_REG(0, 21) + +/* 23-24 Reserved */ + +#define ADC3XXX_CLKOUT_MUX ADC3XXX_REG(0, 25) +#define ADC3XXX_CLKOUT_M_DIV ADC3XXX_REG(0, 26) +#define ADC3XXX_INTERFACE_CTRL_1 ADC3XXX_REG(0, 27) +#define ADC3XXX_CH_OFFSET_1 ADC3XXX_REG(0, 28) +#define ADC3XXX_INTERFACE_CTRL_2 ADC3XXX_REG(0, 29) +#define ADC3XXX_BCLK_N_DIV ADC3XXX_REG(0, 30) +#define ADC3XXX_INTERFACE_CTRL_3 ADC3XXX_REG(0, 31) +#define ADC3XXX_INTERFACE_CTRL_4 ADC3XXX_REG(0, 32) +#define ADC3XXX_INTERFACE_CTRL_5 ADC3XXX_REG(0, 33) +#define ADC3XXX_I2S_SYNC ADC3XXX_REG(0, 34) +/* 35 Reserved */ +#define ADC3XXX_ADC_FLAG ADC3XXX_REG(0, 36) +#define ADC3XXX_CH_OFFSET_2 ADC3XXX_REG(0, 37) +#define ADC3XXX_I2S_TDM_CTRL ADC3XXX_REG(0, 38) +/* 39-41 Reserved */ +#define ADC3XXX_INTR_FLAG_1 ADC3XXX_REG(0, 42) +#define ADC3XXX_INTR_FLAG_2 ADC3XXX_REG(0, 43) +/* 44 Reserved */ +#define ADC3XXX_INTR_FLAG_ADC1 ADC3XXX_REG(0, 45) +/* 46 Reserved */ +#define ADC3XXX_INTR_FLAG_ADC2 ADC3XXX_REG(0, 47) +#define ADC3XXX_INT1_CTRL ADC3XXX_REG(0, 48) +#define ADC3XXX_INT2_CTRL ADC3XXX_REG(0, 49) +/* 50 Reserved */ +#define ADC3XXX_GPIO2_CTRL ADC3XXX_REG(0, 51) +#define ADC3XXX_GPIO1_CTRL ADC3XXX_REG(0, 52) +#define ADC3XXX_DOUT_CTRL ADC3XXX_REG(0, 53) +/* 54-56 Reserved */ +#define ADC3XXX_SYNC_CTRL_1 ADC3XXX_REG(0, 57) +#define ADC3XXX_SYNC_CTRL_2 ADC3XXX_REG(0, 58) +#define ADC3XXX_CIC_GAIN_CTRL ADC3XXX_REG(0, 59) +/* 60 Reserved */ +#define ADC3XXX_PRB_SELECT ADC3XXX_REG(0, 61) +#define ADC3XXX_INST_MODE_CTRL ADC3XXX_REG(0, 62) +/* 63-79 Reserved */ +#define ADC3XXX_MIC_POLARITY_CTRL ADC3XXX_REG(0, 80) +#define ADC3XXX_ADC_DIGITAL ADC3XXX_REG(0, 81) +#define ADC3XXX_ADC_FGA ADC3XXX_REG(0, 82) +#define ADC3XXX_LADC_VOL ADC3XXX_REG(0, 83) +#define ADC3XXX_RADC_VOL ADC3XXX_REG(0, 84) +#define ADC3XXX_ADC_PHASE_COMP ADC3XXX_REG(0, 85) +#define ADC3XXX_LEFT_CHN_AGC_1 ADC3XXX_REG(0, 86) +#define ADC3XXX_LEFT_CHN_AGC_2 ADC3XXX_REG(0, 87) +#define ADC3XXX_LEFT_CHN_AGC_3 ADC3XXX_REG(0, 88) +#define ADC3XXX_LEFT_CHN_AGC_4 ADC3XXX_REG(0, 89) +#define ADC3XXX_LEFT_CHN_AGC_5 ADC3XXX_REG(0, 90) +#define ADC3XXX_LEFT_CHN_AGC_6 ADC3XXX_REG(0, 91) +#define ADC3XXX_LEFT_CHN_AGC_7 ADC3XXX_REG(0, 92) +#define ADC3XXX_LEFT_AGC_GAIN ADC3XXX_REG(0, 93) +#define ADC3XXX_RIGHT_CHN_AGC_1 ADC3XXX_REG(0, 94) +#define ADC3XXX_RIGHT_CHN_AGC_2 ADC3XXX_REG(0, 95) +#define ADC3XXX_RIGHT_CHN_AGC_3 ADC3XXX_REG(0, 96) +#define ADC3XXX_RIGHT_CHN_AGC_4 ADC3XXX_REG(0, 97) +#define ADC3XXX_RIGHT_CHN_AGC_5 ADC3XXX_REG(0, 98) +#define ADC3XXX_RIGHT_CHN_AGC_6 ADC3XXX_REG(0, 99) +#define ADC3XXX_RIGHT_CHN_AGC_7 ADC3XXX_REG(0, 100) +#define ADC3XXX_RIGHT_AGC_GAIN ADC3XXX_REG(0, 101) +/* 102-127 Reserved */ + +/* + * Page 1 registers. + */ + +/* 1-25 Reserved */ +#define ADC3XXX_DITHER_CTRL ADC3XXX_REG(1, 26) +/* 27-50 Reserved */ +#define ADC3XXX_MICBIAS_CTRL ADC3XXX_REG(1, 51) +#define ADC3XXX_LEFT_PGA_SEL_1 ADC3XXX_REG(1, 52) +/* 53 Reserved */ +#define ADC3XXX_LEFT_PGA_SEL_2 ADC3XXX_REG(1, 54) +#define ADC3XXX_RIGHT_PGA_SEL_1 ADC3XXX_REG(1, 55) +#define ADC3XXX_RIGHT_PGA_SEL_2 ADC3XXX_REG(1, 57) +#define ADC3XXX_LEFT_APGA_CTRL ADC3XXX_REG(1, 59) +#define ADC3XXX_RIGHT_APGA_CTRL ADC3XXX_REG(1, 60) +#define ADC3XXX_LOW_CURRENT_MODES ADC3XXX_REG(1, 61) +#define ADC3XXX_ANALOG_PGA_FLAGS ADC3XXX_REG(1, 62) +/* 63-127 Reserved */ + +/* + * Register bits. + */ + +/* PLL Enable bits */ +#define ADC3XXX_ENABLE_PLL_SHIFT 7 +#define ADC3XXX_ENABLE_PLL (1 << ADC3XXX_ENABLE_PLL_SHIFT) +#define ADC3XXX_ENABLE_NADC_SHIFT 7 +#define ADC3XXX_ENABLE_NADC (1 << ADC3XXX_ENABLE_NADC_SHIFT) +#define ADC3XXX_ENABLE_MADC_SHIFT 7 +#define ADC3XXX_ENABLE_MADC (1 << ADC3XXX_ENABLE_MADC_SHIFT) +#define ADC3XXX_ENABLE_BCLK_SHIFT 7 +#define ADC3XXX_ENABLE_BCLK (1 << ADC3XXX_ENABLE_BCLK_SHIFT) + +/* Power bits */ +#define ADC3XXX_LADC_PWR_ON 0x80 +#define ADC3XXX_RADC_PWR_ON 0x40 + +#define ADC3XXX_SOFT_RESET 0x01 +#define ADC3XXX_BCLK_MASTER 0x08 +#define ADC3XXX_WCLK_MASTER 0x04 + +/* Interface register masks */ +#define ADC3XXX_FORMAT_MASK 0xc0 +#define ADC3XXX_FORMAT_SHIFT 6 +#define ADC3XXX_WLENGTH_MASK 0x30 +#define ADC3XXX_WLENGTH_SHIFT 4 +#define ADC3XXX_CLKDIR_MASK 0x0c +#define ADC3XXX_CLKDIR_SHIFT 2 + +/* Interface register bit patterns */ +#define ADC3XXX_FORMAT_I2S (0 << ADC3XXX_FORMAT_SHIFT) +#define ADC3XXX_FORMAT_DSP (1 << ADC3XXX_FORMAT_SHIFT) +#define ADC3XXX_FORMAT_RJF (2 << ADC3XXX_FORMAT_SHIFT) +#define ADC3XXX_FORMAT_LJF (3 << ADC3XXX_FORMAT_SHIFT) + +#define ADC3XXX_IFACE_16BITS (0 << ADC3XXX_WLENGTH_SHIFT) +#define ADC3XXX_IFACE_20BITS (1 << ADC3XXX_WLENGTH_SHIFT) +#define ADC3XXX_IFACE_24BITS (2 << ADC3XXX_WLENGTH_SHIFT) +#define ADC3XXX_IFACE_32BITS (3 << ADC3XXX_WLENGTH_SHIFT) + +/* PLL P/R bit offsets */ +#define ADC3XXX_PLLP_SHIFT 4 +#define ADC3XXX_PLLR_SHIFT 0 +#define ADC3XXX_PLL_PR_MASK 0x7f +#define ADC3XXX_PLLJ_MASK 0x3f +#define ADC3XXX_PLLD_MSB_MASK 0x3f +#define ADC3XXX_PLLD_LSB_MASK 0xff +#define ADC3XXX_NADC_MASK 0x7f +#define ADC3XXX_MADC_MASK 0x7f +#define ADC3XXX_AOSR_MASK 0xff +#define ADC3XXX_IADC_MASK 0xff +#define ADC3XXX_BDIV_MASK 0x7f + +/* PLL_CLKIN bits */ +#define ADC3XXX_PLL_CLKIN_SHIFT 2 +#define ADC3XXX_PLL_CLKIN_MCLK 0x0 +#define ADC3XXX_PLL_CLKIN_BCLK 0x1 +#define ADC3XXX_PLL_CLKIN_ZERO 0x3 + +/* CODEC_CLKIN bits */ +#define ADC3XXX_CODEC_CLKIN_SHIFT 0 +#define ADC3XXX_CODEC_CLKIN_MCLK 0x0 +#define ADC3XXX_CODEC_CLKIN_BCLK 0x1 +#define ADC3XXX_CODEC_CLKIN_PLL_CLK 0x3 + +#define ADC3XXX_USE_PLL ((ADC3XXX_PLL_CLKIN_MCLK << ADC3XXX_PLL_CLKIN_SHIFT) | \ + (ADC3XXX_CODEC_CLKIN_PLL_CLK << ADC3XXX_CODEC_CLKIN_SHIFT)) +#define ADC3XXX_NO_PLL ((ADC3XXX_PLL_CLKIN_ZERO << ADC3XXX_PLL_CLKIN_SHIFT) | \ + (ADC3XXX_CODEC_CLKIN_MCLK << ADC3XXX_CODEC_CLKIN_SHIFT)) + +/* Analog PGA control bits */ +#define ADC3XXX_LPGA_MUTE 0x80 +#define ADC3XXX_RPGA_MUTE 0x80 + +#define ADC3XXX_LPGA_GAIN_MASK 0x7f +#define ADC3XXX_RPGA_GAIN_MASK 0x7f + +/* ADC current modes */ +#define ADC3XXX_ADC_LOW_CURR_MODE 0x01 + +/* Left ADC Input selection bits */ +#define ADC3XXX_LCH_SEL1_SHIFT 0 +#define ADC3XXX_LCH_SEL2_SHIFT 2 +#define ADC3XXX_LCH_SEL3_SHIFT 4 +#define ADC3XXX_LCH_SEL4_SHIFT 6 + +#define ADC3XXX_LCH_SEL1X_SHIFT 0 +#define ADC3XXX_LCH_SEL2X_SHIFT 2 +#define ADC3XXX_LCH_SEL3X_SHIFT 4 +#define ADC3XXX_LCH_COMMON_MODE 0x40 +#define ADC3XXX_BYPASS_LPGA 0x80 + +/* Right ADC Input selection bits */ +#define ADC3XXX_RCH_SEL1_SHIFT 0 +#define ADC3XXX_RCH_SEL2_SHIFT 2 +#define ADC3XXX_RCH_SEL3_SHIFT 4 +#define ADC3XXX_RCH_SEL4_SHIFT 6 + +#define ADC3XXX_RCH_SEL1X_SHIFT 0 +#define ADC3XXX_RCH_SEL2X_SHIFT 2 +#define ADC3XXX_RCH_SEL3X_SHIFT 4 +#define ADC3XXX_RCH_COMMON_MODE 0x40 +#define ADC3XXX_BYPASS_RPGA 0x80 + +/* MICBIAS control bits */ +#define ADC3XXX_MICBIAS_MASK 0x2 +#define ADC3XXX_MICBIAS1_SHIFT 5 +#define ADC3XXX_MICBIAS2_SHIFT 3 + +#define ADC3XXX_ADC_MAX_VOLUME 64 +#define ADC3XXX_ADC_POS_VOL 24 + +/* GPIO control bits (GPIO1_CTRL and GPIO2_CTRL) */ +#define ADC3XXX_GPIO_CTRL_CFG_MASK 0x3c +#define ADC3XXX_GPIO_CTRL_CFG_SHIFT 2 +#define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK 0x01 +#define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT 0 +#define ADC3XXX_GPIO_CTRL_INPUT_VALUE_MASK 0x02 +#define ADC3XXX_GPIO_CTRL_INPUT_VALUE_SHIFT 1 + +enum adc3xxx_type { + ADC3001 = 0, + ADC3101 +}; + +struct adc3xxx { + struct device *dev; + enum adc3xxx_type type; + struct clk *mclk; + struct regmap *regmap; + struct gpio_desc *rst_pin; + unsigned int pll_mode; + unsigned int sysclk; + unsigned int gpio_cfg[ADC3XXX_GPIOS_MAX]; /* value+1 (0 => not set) */ + unsigned int micbias_vg[ADC3XXX_MICBIAS_PINS]; + int master; + u8 page_no; + int use_pll; + struct gpio_chip gpio_chip; +}; + +static const unsigned int adc3xxx_gpio_ctrl_reg[ADC3XXX_GPIOS_MAX] = { + ADC3XXX_GPIO1_CTRL, + ADC3XXX_GPIO2_CTRL +}; + +static const unsigned int adc3xxx_micbias_shift[ADC3XXX_MICBIAS_PINS] = { + ADC3XXX_MICBIAS1_SHIFT, + ADC3XXX_MICBIAS2_SHIFT +}; + +static const struct reg_default adc3xxx_defaults[] = { + /* Page 0 */ + { 0, 0x00 }, { 1, 0x00 }, { 2, 0x00 }, { 3, 0x00 }, + { 4, 0x00 }, { 5, 0x11 }, { 6, 0x04 }, { 7, 0x00 }, + { 8, 0x00 }, { 9, 0x00 }, { 10, 0x00 }, { 11, 0x00 }, + { 12, 0x00 }, { 13, 0x00 }, { 14, 0x00 }, { 15, 0x00 }, + { 16, 0x00 }, { 17, 0x00 }, { 18, 0x01 }, { 19, 0x01 }, + { 20, 0x80 }, { 21, 0x80 }, { 22, 0x04 }, { 23, 0x00 }, + { 24, 0x00 }, { 25, 0x00 }, { 26, 0x01 }, { 27, 0x00 }, + { 28, 0x00 }, { 29, 0x02 }, { 30, 0x01 }, { 31, 0x00 }, + { 32, 0x00 }, { 33, 0x10 }, { 34, 0x00 }, { 35, 0x00 }, + { 36, 0x00 }, { 37, 0x00 }, { 38, 0x02 }, { 39, 0x00 }, + { 40, 0x00 }, { 41, 0x00 }, { 42, 0x00 }, { 43, 0x00 }, + { 44, 0x00 }, { 45, 0x00 }, { 46, 0x00 }, { 47, 0x00 }, + { 48, 0x00 }, { 49, 0x00 }, { 50, 0x00 }, { 51, 0x00 }, + { 52, 0x00 }, { 53, 0x12 }, { 54, 0x00 }, { 55, 0x00 }, + { 56, 0x00 }, { 57, 0x00 }, { 58, 0x00 }, { 59, 0x44 }, + { 60, 0x00 }, { 61, 0x01 }, { 62, 0x00 }, { 63, 0x00 }, + { 64, 0x00 }, { 65, 0x00 }, { 66, 0x00 }, { 67, 0x00 }, + { 68, 0x00 }, { 69, 0x00 }, { 70, 0x00 }, { 71, 0x00 }, + { 72, 0x00 }, { 73, 0x00 }, { 74, 0x00 }, { 75, 0x00 }, + { 76, 0x00 }, { 77, 0x00 }, { 78, 0x00 }, { 79, 0x00 }, + { 80, 0x00 }, { 81, 0x00 }, { 82, 0x88 }, { 83, 0x00 }, + { 84, 0x00 }, { 85, 0x00 }, { 86, 0x00 }, { 87, 0x00 }, + { 88, 0x7f }, { 89, 0x00 }, { 90, 0x00 }, { 91, 0x00 }, + { 92, 0x00 }, { 93, 0x00 }, { 94, 0x00 }, { 95, 0x00 }, + { 96, 0x7f }, { 97, 0x00 }, { 98, 0x00 }, { 99, 0x00 }, + { 100, 0x00 }, { 101, 0x00 }, { 102, 0x00 }, { 103, 0x00 }, + { 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 }, + { 108, 0x00 }, { 109, 0x00 }, { 110, 0x00 }, { 111, 0x00 }, + { 112, 0x00 }, { 113, 0x00 }, { 114, 0x00 }, { 115, 0x00 }, + { 116, 0x00 }, { 117, 0x00 }, { 118, 0x00 }, { 119, 0x00 }, + { 120, 0x00 }, { 121, 0x00 }, { 122, 0x00 }, { 123, 0x00 }, + { 124, 0x00 }, { 125, 0x00 }, { 126, 0x00 }, { 127, 0x00 }, + + /* Page 1 */ + { 128, 0x00 }, { 129, 0x00 }, { 130, 0x00 }, { 131, 0x00 }, + { 132, 0x00 }, { 133, 0x00 }, { 134, 0x00 }, { 135, 0x00 }, + { 136, 0x00 }, { 137, 0x00 }, { 138, 0x00 }, { 139, 0x00 }, + { 140, 0x00 }, { 141, 0x00 }, { 142, 0x00 }, { 143, 0x00 }, + { 144, 0x00 }, { 145, 0x00 }, { 146, 0x00 }, { 147, 0x00 }, + { 148, 0x00 }, { 149, 0x00 }, { 150, 0x00 }, { 151, 0x00 }, + { 152, 0x00 }, { 153, 0x00 }, { 154, 0x00 }, { 155, 0x00 }, + { 156, 0x00 }, { 157, 0x00 }, { 158, 0x00 }, { 159, 0x00 }, + { 160, 0x00 }, { 161, 0x00 }, { 162, 0x00 }, { 163, 0x00 }, + { 164, 0x00 }, { 165, 0x00 }, { 166, 0x00 }, { 167, 0x00 }, + { 168, 0x00 }, { 169, 0x00 }, { 170, 0x00 }, { 171, 0x00 }, + { 172, 0x00 }, { 173, 0x00 }, { 174, 0x00 }, { 175, 0x00 }, + { 176, 0x00 }, { 177, 0x00 }, { 178, 0x00 }, { 179, 0x00 }, + { 180, 0xff }, { 181, 0x00 }, { 182, 0x3f }, { 183, 0xff }, + { 184, 0x00 }, { 185, 0x3f }, { 186, 0x00 }, { 187, 0x80 }, + { 188, 0x80 }, { 189, 0x00 }, { 190, 0x00 }, { 191, 0x00 }, +}; + +static bool adc3xxx_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case ADC3XXX_RESET: + return true; + default: + return false; + } +} + +static const struct regmap_range_cfg adc3xxx_ranges[] = { + { + .range_min = 0, + .range_max = 2 * ADC3XXX_PAGE_SIZE, + .selector_reg = ADC3XXX_PAGE_SELECT, + .selector_mask = 0xff, + .selector_shift = 0, + .window_start = 0, + .window_len = ADC3XXX_PAGE_SIZE, + } +}; + +static const struct regmap_config adc3xxx_regmap = { + .reg_bits = 8, + .val_bits = 8, + + .reg_defaults = adc3xxx_defaults, + .num_reg_defaults = ARRAY_SIZE(adc3xxx_defaults), + + .volatile_reg = adc3xxx_volatile_reg, + + .cache_type = REGCACHE_RBTREE, + + .ranges = adc3xxx_ranges, + .num_ranges = ARRAY_SIZE(adc3xxx_ranges), + .max_register = 2 * ADC3XXX_PAGE_SIZE, +}; + +struct adc3xxx_rate_divs { + u32 mclk; + u32 rate; + u8 pll_p; + u8 pll_r; + u8 pll_j; + u16 pll_d; + u8 nadc; + u8 madc; + u8 aosr; +}; + +/* + * PLL and Clock settings. + * If p member is 0, PLL is not used. + * The order of the entries in this table have the PLL entries before + * the non-PLL entries, so that the PLL modes are preferred unless + * the PLL mode setting says otherwise. + */ +static const struct adc3xxx_rate_divs adc3xxx_divs[] = { + /* mclk, rate, p, r, j, d, nadc, madc, aosr */ + /* 8k rate */ + { 12000000, 8000, 1, 1, 7, 1680, 42, 2, 128 }, + { 12288000, 8000, 1, 1, 7, 0000, 42, 2, 128 }, + /* 11.025k rate */ + { 12000000, 11025, 1, 1, 6, 8208, 29, 2, 128 }, + /* 16k rate */ + { 12000000, 16000, 1, 1, 7, 1680, 21, 2, 128 }, + { 12288000, 16000, 1, 1, 7, 0000, 21, 2, 128 }, + /* 22.05k rate */ + { 12000000, 22050, 1, 1, 7, 560, 15, 2, 128 }, + /* 32k rate */ + { 12000000, 32000, 1, 1, 8, 1920, 12, 2, 128 }, + { 12288000, 32000, 1, 1, 8, 0000, 12, 2, 128 }, + /* 44.1k rate */ + { 12000000, 44100, 1, 1, 7, 5264, 8, 2, 128 }, + /* 48k rate */ + { 12000000, 48000, 1, 1, 7, 1680, 7, 2, 128 }, + { 12288000, 48000, 1, 1, 7, 0000, 7, 2, 128 }, + { 24576000, 48000, 1, 1, 3, 5000, 7, 2, 128 }, /* With PLL */ + { 24576000, 48000, 0, 0, 0, 0000, 2, 2, 128 }, /* Without PLL */ + /* 88.2k rate */ + { 12000000, 88200, 1, 1, 7, 5264, 4, 4, 64 }, + /* 96k rate */ + { 12000000, 96000, 1, 1, 8, 1920, 4, 4, 64 }, +}; + +static int adc3xxx_get_divs(struct device *dev, int mclk, int rate, int pll_mode) +{ + int i; + + dev_dbg(dev, "mclk = %d, rate = %d, clock mode %u\n", + mclk, rate, pll_mode); + for (i = 0; i < ARRAY_SIZE(adc3xxx_divs); i++) { + const struct adc3xxx_rate_divs *mode = &adc3xxx_divs[i]; + + /* Skip this entry if it doesn't fulfill the intended clock + * mode requirement. We consider anything besides the two + * modes below to be the same as ADC3XXX_PLL_AUTO. + */ + if ((pll_mode == ADC3XXX_PLL_BYPASS && mode->pll_p) || + (pll_mode == ADC3XXX_PLL_ENABLE && !mode->pll_p)) + continue; + + if (mode->rate == rate && mode->mclk == mclk) + return i; + } + + dev_info(dev, "Master clock rate %d and sample rate %d is not supported\n", + mclk, rate); + return -EINVAL; +} + +static int adc3xxx_pll_delay(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + /* 10msec delay needed after PLL power-up to allow + * PLL and dividers to stabilize (datasheet p13). + */ + usleep_range(10000, 20000); + + return 0; +} + +static const char * const adc_softstepping_text[] = { "1 step", "2 step", "off" }; +static SOC_ENUM_SINGLE_DECL(adc_softstepping_enum, ADC3XXX_ADC_DIGITAL, 0, + adc_softstepping_text); + +static const char * const multiplier_text[] = { "1", "2", "4", "8", "16", "32", "64", "128" }; +static SOC_ENUM_SINGLE_DECL(left_agc_attack_mult_enum, + ADC3XXX_LEFT_CHN_AGC_4, 0, multiplier_text); +static SOC_ENUM_SINGLE_DECL(right_agc_attack_mult_enum, + ADC3XXX_RIGHT_CHN_AGC_4, 0, multiplier_text); +static SOC_ENUM_SINGLE_DECL(left_agc_decay_mult_enum, + ADC3XXX_LEFT_CHN_AGC_5, 0, multiplier_text); +static SOC_ENUM_SINGLE_DECL(right_agc_decay_mult_enum, + ADC3XXX_RIGHT_CHN_AGC_5, 0, multiplier_text); + +static const char * const dither_dc_offset_text[] = { + "0mV", "15mV", "30mV", "45mV", "60mV", "75mV", "90mV", "105mV", + "-15mV", "-30mV", "-45mV", "-60mV", "-75mV", "-90mV", "-105mV" +}; +static const unsigned int dither_dc_offset_values[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 +}; +static SOC_VALUE_ENUM_DOUBLE_DECL(dither_dc_offset_enum, + ADC3XXX_DITHER_CTRL, + 4, 0, 0xf, dither_dc_offset_text, + dither_dc_offset_values); + +static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 50, 0); +static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 50, 0); +static const DECLARE_TLV_DB_SCALE(adc_fine_tlv, -40, 10, 0); +/* AGC target: 8 values: -5.5, -8, -10, -12, -14, -17, -20, -24 dB */ +/* It would be nice to declare these in the order above, but empirically + * TLV_DB_SCALE_ITEM doesn't take lightly to the increment (second) parameter + * being negative, despite there being examples to the contrary in other + * drivers. So declare these in the order from lowest to highest, and + * set the invert flag in the SOC_DOUBLE_R_TLV declaration instead. + */ +static const DECLARE_TLV_DB_RANGE(agc_target_tlv, + 0, 0, TLV_DB_SCALE_ITEM(-2400, 0, 0), + 1, 3, TLV_DB_SCALE_ITEM(-2000, 300, 0), + 4, 6, TLV_DB_SCALE_ITEM(-1200, 200, 0), + 7, 7, TLV_DB_SCALE_ITEM(-550, 0, 0)); +/* Since the 'disabled' value (mute) is at the highest value in the dB + * range (i.e. just before -32 dB) rather than the lowest, we need to resort + * to using a TLV_DB_RANGE in order to get the mute value in the right place. + */ +static const DECLARE_TLV_DB_RANGE(agc_thresh_tlv, + 0, 30, TLV_DB_SCALE_ITEM(-9000, 200, 0), + 31, 31, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ +/* AGC hysteresis: 4 values: 1, 2, 4 dB, disabled (= mute) */ +static const DECLARE_TLV_DB_RANGE(agc_hysteresis_tlv, + 0, 1, TLV_DB_SCALE_ITEM(100, 100, 0), + 2, 2, TLV_DB_SCALE_ITEM(400, 0, 0), + 3, 3, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ +static const DECLARE_TLV_DB_SCALE(agc_max_tlv, 0, 50, 0); +/* Input attenuation: -6 dB or 0 dB */ +static const DECLARE_TLV_DB_SCALE(input_attenuation_tlv, -600, 600, 0); + +static const struct snd_kcontrol_new adc3xxx_snd_controls[] = { + SOC_DOUBLE_R_TLV("PGA Capture Volume", ADC3XXX_LEFT_APGA_CTRL, + ADC3XXX_RIGHT_APGA_CTRL, 0, 80, 0, pga_tlv), + SOC_DOUBLE("PGA Capture Switch", ADC3XXX_ADC_FGA, 7, 3, 1, 1), + SOC_DOUBLE_R("AGC Capture Switch", ADC3XXX_LEFT_CHN_AGC_1, + ADC3XXX_RIGHT_CHN_AGC_1, 7, 1, 0), + SOC_DOUBLE_R_TLV("AGC Target Level Capture Volume", ADC3XXX_LEFT_CHN_AGC_1, + ADC3XXX_RIGHT_CHN_AGC_2, 4, 0x07, 1, agc_target_tlv), + SOC_DOUBLE_R_TLV("AGC Noise Threshold Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, + ADC3XXX_RIGHT_CHN_AGC_2, 1, 0x1f, 1, agc_thresh_tlv), + SOC_DOUBLE_R_TLV("AGC Hysteresis Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, + ADC3XXX_RIGHT_CHN_AGC_2, 6, 3, 0, agc_hysteresis_tlv), + SOC_DOUBLE_R("AGC Clip Stepping Capture Switch", ADC3XXX_LEFT_CHN_AGC_2, + ADC3XXX_RIGHT_CHN_AGC_2, 0, 1, 0), + /* + * Oddly enough, the data sheet says the default value + * for the left/right AGC maximum gain register field + * (ADC3XXX_LEFT/RIGHT_CHN_AGC_3 bits 0..6) is 0x7f = 127 + * (verified empirically) even though this value (indeed, above + * 0x50) is specified as 'Reserved. Do not use.' in the accompanying + * table in the data sheet. + */ + SOC_DOUBLE_R_TLV("AGC Maximum Capture Volume", ADC3XXX_LEFT_CHN_AGC_3, + ADC3XXX_RIGHT_CHN_AGC_3, 0, 0x50, 0, agc_max_tlv), + SOC_DOUBLE_R("AGC Attack Time", ADC3XXX_LEFT_CHN_AGC_4, + ADC3XXX_RIGHT_CHN_AGC_4, 3, 0x1f, 0), + /* Would like to have the multipliers as LR pairs, but there is + * no SOC_ENUM_foo which accepts two values in separate registers. + */ + SOC_ENUM("AGC Left Attack Time Multiplier", left_agc_attack_mult_enum), + SOC_ENUM("AGC Right Attack Time Multiplier", right_agc_attack_mult_enum), + SOC_DOUBLE_R("AGC Decay Time", ADC3XXX_LEFT_CHN_AGC_5, + ADC3XXX_RIGHT_CHN_AGC_5, 3, 0x1f, 0), + SOC_ENUM("AGC Left Decay Time Multiplier", left_agc_decay_mult_enum), + SOC_ENUM("AGC Right Decay Time Multiplier", right_agc_decay_mult_enum), + SOC_DOUBLE_R("AGC Noise Debounce", ADC3XXX_LEFT_CHN_AGC_6, + ADC3XXX_RIGHT_CHN_AGC_6, 0, 0x1f, 0), + SOC_DOUBLE_R("AGC Signal Debounce", ADC3XXX_LEFT_CHN_AGC_7, + ADC3XXX_RIGHT_CHN_AGC_7, 0, 0x0f, 0), + /* Read only register */ + SOC_DOUBLE_R_S_TLV("AGC Applied Capture Volume", ADC3XXX_LEFT_AGC_GAIN, + ADC3XXX_RIGHT_AGC_GAIN, 0, -24, 40, 6, 0, adc_tlv), + /* ADC soft stepping */ + SOC_ENUM("ADC Soft Stepping", adc_softstepping_enum), + /* Left/Right Input attenuation */ + SOC_SINGLE_TLV("Left Input IN_1L Capture Volume", + ADC3XXX_LEFT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input IN_2L Capture Volume", + ADC3XXX_LEFT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input IN_3L Capture Volume", + ADC3XXX_LEFT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input IN_1R Capture Volume", + ADC3XXX_LEFT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input DIF_2L_3L Capture Volume", + ADC3XXX_LEFT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input DIF_1L_1R Capture Volume", + ADC3XXX_LEFT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Left Input DIF_2R_3R Capture Volume", + ADC3XXX_LEFT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input IN_1R Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input IN_2R Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input IN_3R Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input IN_1L Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input DIF_2R_3R Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input DIF_1L_1R Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), + SOC_SINGLE_TLV("Right Input DIF_2L_3L Capture Volume", + ADC3XXX_RIGHT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), + SOC_DOUBLE_R_S_TLV("ADC Volume Control Capture Volume", ADC3XXX_LADC_VOL, + ADC3XXX_RADC_VOL, 0, -24, 40, 6, 0, adc_tlv), + /* Empirically, the following doesn't work the way it's supposed + * to. Values 0, -0.1, -0.2 and -0.3 dB result in the same level, and + * -0.4 dB drops about 0.12 dB on a specific chip. + */ + SOC_DOUBLE_TLV("ADC Fine Volume Control Capture Volume", ADC3XXX_ADC_FGA, + 4, 0, 4, 1, adc_fine_tlv), + SOC_SINGLE("Left ADC Unselected CM Bias Capture Switch", + ADC3XXX_LEFT_PGA_SEL_2, 6, 1, 0), + SOC_SINGLE("Right ADC Unselected CM Bias Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_2, 6, 1, 0), + SOC_ENUM("Dither Control DC Offset", dither_dc_offset_enum), +}; + +/* Left input selection, Single Ended inputs and Differential inputs */ +static const struct snd_kcontrol_new left_input_mixer_controls[] = { + SOC_DAPM_SINGLE("IN_1L Capture Switch", + ADC3XXX_LEFT_PGA_SEL_1, 1, 0x1, 1), + SOC_DAPM_SINGLE("IN_2L Capture Switch", + ADC3XXX_LEFT_PGA_SEL_1, 3, 0x1, 1), + SOC_DAPM_SINGLE("IN_3L Capture Switch", + ADC3XXX_LEFT_PGA_SEL_1, 5, 0x1, 1), + SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", + ADC3XXX_LEFT_PGA_SEL_1, 7, 0x1, 1), + SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", + ADC3XXX_LEFT_PGA_SEL_2, 5, 0x1, 1), + SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", + ADC3XXX_LEFT_PGA_SEL_2, 3, 0x1, 1), + SOC_DAPM_SINGLE("IN_1R Capture Switch", + ADC3XXX_LEFT_PGA_SEL_2, 1, 0x1, 1), +}; + +/* Right input selection, Single Ended inputs and Differential inputs */ +static const struct snd_kcontrol_new right_input_mixer_controls[] = { + SOC_DAPM_SINGLE("IN_1R Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_1, 1, 0x1, 1), + SOC_DAPM_SINGLE("IN_2R Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_1, 3, 0x1, 1), + SOC_DAPM_SINGLE("IN_3R Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_1, 5, 0x1, 1), + SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_1, 7, 0x1, 1), + SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_2, 5, 0x1, 1), + SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_2, 3, 0x1, 1), + SOC_DAPM_SINGLE("IN_1L Capture Switch", + ADC3XXX_RIGHT_PGA_SEL_2, 1, 0x1, 1), +}; + +/* Left Digital Mic input for left ADC */ +static const struct snd_kcontrol_new left_input_dmic_controls[] = { + SOC_DAPM_SINGLE("Left ADC Capture Switch", + ADC3XXX_ADC_DIGITAL, 3, 0x1, 0), +}; + +/* Right Digital Mic input for Right ADC */ +static const struct snd_kcontrol_new right_input_dmic_controls[] = { + SOC_DAPM_SINGLE("Right ADC Capture Switch", + ADC3XXX_ADC_DIGITAL, 2, 0x1, 0), +}; + +/* DAPM widgets */ +static const struct snd_soc_dapm_widget adc3xxx_dapm_widgets[] = { + + /* Left Input Selection */ + SND_SOC_DAPM_MIXER("Left Input", SND_SOC_NOPM, 0, 0, + &left_input_mixer_controls[0], + ARRAY_SIZE(left_input_mixer_controls)), + /* Right Input Selection */ + SND_SOC_DAPM_MIXER("Right Input", SND_SOC_NOPM, 0, 0, + &right_input_mixer_controls[0], + ARRAY_SIZE(right_input_mixer_controls)), + /* PGA selection */ + SND_SOC_DAPM_PGA("Left PGA", ADC3XXX_LEFT_APGA_CTRL, 7, 1, NULL, 0), + SND_SOC_DAPM_PGA("Right PGA", ADC3XXX_RIGHT_APGA_CTRL, 7, 1, NULL, 0), + + /* Digital Microphone Input Control for Left/Right ADC */ + SND_SOC_DAPM_MIXER("Left DMic Input", SND_SOC_NOPM, 0, 0, + &left_input_dmic_controls[0], + ARRAY_SIZE(left_input_dmic_controls)), + SND_SOC_DAPM_MIXER("Right DMic Input", SND_SOC_NOPM, 0, 0, + &right_input_dmic_controls[0], + ARRAY_SIZE(right_input_dmic_controls)), + + /* Left/Right ADC */ + SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ADC3XXX_ADC_DIGITAL, 7, 0), + SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ADC3XXX_ADC_DIGITAL, 6, 0), + + /* Inputs */ + SND_SOC_DAPM_INPUT("IN_1L"), + SND_SOC_DAPM_INPUT("IN_1R"), + SND_SOC_DAPM_INPUT("IN_2L"), + SND_SOC_DAPM_INPUT("IN_2R"), + SND_SOC_DAPM_INPUT("IN_3L"), + SND_SOC_DAPM_INPUT("IN_3R"), + SND_SOC_DAPM_INPUT("DIFL_1L_1R"), + SND_SOC_DAPM_INPUT("DIFL_2L_3L"), + SND_SOC_DAPM_INPUT("DIFL_2R_3R"), + SND_SOC_DAPM_INPUT("DIFR_1L_1R"), + SND_SOC_DAPM_INPUT("DIFR_2L_3L"), + SND_SOC_DAPM_INPUT("DIFR_2R_3R"), + SND_SOC_DAPM_INPUT("DMic_L"), + SND_SOC_DAPM_INPUT("DMic_R"), + + /* Digital audio interface output */ + SND_SOC_DAPM_AIF_OUT("AIF_OUT", "Capture", 0, SND_SOC_NOPM, 0, 0), + + /* Clocks */ + SND_SOC_DAPM_SUPPLY("PLL_CLK", ADC3XXX_PLL_PROG_PR, ADC3XXX_ENABLE_PLL_SHIFT, + 0, adc3xxx_pll_delay, SND_SOC_DAPM_POST_PMU), + + SND_SOC_DAPM_SUPPLY("ADC_CLK", ADC3XXX_ADC_NADC, ADC3XXX_ENABLE_NADC_SHIFT, + 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_MOD_CLK", ADC3XXX_ADC_MADC, ADC3XXX_ENABLE_MADC_SHIFT, + 0, NULL, 0), + + /* This refers to the generated BCLK in master mode. */ + SND_SOC_DAPM_SUPPLY("BCLK", ADC3XXX_BCLK_N_DIV, ADC3XXX_ENABLE_BCLK_SHIFT, + 0, NULL, 0), +}; + +static const struct snd_soc_dapm_route adc3xxx_intercon[] = { + /* Left input selection from switches */ + { "Left Input", "IN_1L Capture Switch", "IN_1L" }, + { "Left Input", "IN_2L Capture Switch", "IN_2L" }, + { "Left Input", "IN_3L Capture Switch", "IN_3L" }, + { "Left Input", "DIF_2L_3L Capture Switch", "DIFL_2L_3L" }, + { "Left Input", "DIF_1L_1R Capture Switch", "DIFL_1L_1R" }, + { "Left Input", "DIF_2R_3R Capture Switch", "DIFL_2R_3R" }, + { "Left Input", "IN_1R Capture Switch", "IN_1R" }, + + /* Left input selection to left PGA */ + { "Left PGA", NULL, "Left Input" }, + + /* Left PGA to left ADC */ + { "Left ADC", NULL, "Left PGA" }, + + /* Right input selection from switches */ + { "Right Input", "IN_1R Capture Switch", "IN_1R" }, + { "Right Input", "IN_2R Capture Switch", "IN_2R" }, + { "Right Input", "IN_3R Capture Switch", "IN_3R" }, + { "Right Input", "DIF_2R_3R Capture Switch", "DIFR_2R_3R" }, + { "Right Input", "DIF_1L_1R Capture Switch", "DIFR_1L_1R" }, + { "Right Input", "DIF_2L_3L Capture Switch", "DIFR_2L_3L" }, + { "Right Input", "IN_1L Capture Switch", "IN_1L" }, + + /* Right input selection to right PGA */ + { "Right PGA", NULL, "Right Input" }, + + /* Right PGA to right ADC */ + { "Right ADC", NULL, "Right PGA" }, + + /* Left DMic Input selection from switch */ + { "Left DMic Input", "Left ADC Capture Switch", "DMic_L" }, + + /* Left DMic to left ADC */ + { "Left ADC", NULL, "Left DMic Input" }, + + /* Right DMic Input selection from switch */ + { "Right DMic Input", "Right ADC Capture Switch", "DMic_R" }, + + /* Right DMic to right ADC */ + { "Right ADC", NULL, "Right DMic Input" }, + + /* ADC to AIF output */ + { "AIF_OUT", NULL, "Left ADC" }, + { "AIF_OUT", NULL, "Right ADC" }, + + /* Clocking */ + { "ADC_MOD_CLK", NULL, "ADC_CLK" }, + { "Left ADC", NULL, "ADC_MOD_CLK" }, + { "Right ADC", NULL, "ADC_MOD_CLK" }, + + { "BCLK", NULL, "ADC_CLK" }, +}; + +static const struct snd_soc_dapm_route adc3xxx_pll_intercon[] = { + { "ADC_CLK", NULL, "PLL_CLK" }, +}; + +static const struct snd_soc_dapm_route adc3xxx_bclk_out_intercon[] = { + { "AIF_OUT", NULL, "BCLK" } +}; + +static int adc3xxx_gpio_request(struct gpio_chip *chip, unsigned int offset) +{ + struct adc3xxx *adc3xxx = gpiochip_get_data(chip); + + if (offset >= ADC3XXX_GPIOS_MAX) + return -EINVAL; + + /* GPIO1 is offset 0, GPIO2 is offset 1 */ + /* We check here that the GPIO pins are either not configured in the + * DT, or that they purposely are set as outputs. + * (Input mode not yet implemented). + */ + if (adc3xxx->gpio_cfg[offset] != 0 && + adc3xxx->gpio_cfg[offset] != ADC3XXX_GPIO_GPO + 1) + return -EINVAL; + + return 0; +} + +static int adc3xxx_gpio_direction_out(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct adc3xxx *adc3xxx = gpiochip_get_data(chip); + + /* Set GPIO output function. */ + return regmap_update_bits(adc3xxx->regmap, + adc3xxx_gpio_ctrl_reg[offset], + ADC3XXX_GPIO_CTRL_CFG_MASK | + ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK, + ADC3XXX_GPIO_GPO << ADC3XXX_GPIO_CTRL_CFG_SHIFT | + !!value << ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT); +} + +/* With only GPIO outputs configured, we never get the .direction_out call, + * so we set the output mode and output value in the same call. Hence + * .set in practice does the same thing as .direction_out . + */ +static void adc3xxx_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) +{ + (void) adc3xxx_gpio_direction_out(chip, offset, value); +} + +/* Even though we only support GPIO output for now, some GPIO clients + * want to read the current pin state using the .get callback. + */ +static int adc3xxx_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + struct adc3xxx *adc3xxx = gpiochip_get_data(chip); + unsigned int regval; + int ret; + + /* We only allow output pins, so just read the value set in the output + * pin register field. + */ + ret = regmap_read(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[offset], &regval); + if (ret) + return ret; + return !!(regval & ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK); +} + +static const struct gpio_chip adc3xxx_gpio_chip = { + .label = "adc3xxx", + .owner = THIS_MODULE, + .request = adc3xxx_gpio_request, + .direction_output = adc3xxx_gpio_direction_out, + .set = adc3xxx_gpio_set, + .get = adc3xxx_gpio_get, + .can_sleep = 1, +}; + +static void adc3xxx_free_gpio(struct adc3xxx *adc3xxx) +{ + gpiochip_remove(&adc3xxx->gpio_chip); +} + +static void adc3xxx_init_gpio(struct adc3xxx *adc3xxx) +{ + int gpio, micbias; + int ret; + + adc3xxx->gpio_chip = adc3xxx_gpio_chip; + adc3xxx->gpio_chip.ngpio = ADC3XXX_GPIOS_MAX; + adc3xxx->gpio_chip.parent = adc3xxx->dev; + adc3xxx->gpio_chip.base = -1; + + ret = gpiochip_add_data(&adc3xxx->gpio_chip, adc3xxx); + if (ret) + dev_err(adc3xxx->dev, "Failed to add gpios: %d\n", ret); + + /* Set up potential GPIO configuration from the devicetree. + * This allows us to set up things which are not software + * controllable GPIOs, such as PDM microphone I/O, + */ + for (gpio = 0; gpio < ADC3XXX_GPIOS_MAX; gpio++) { + unsigned int cfg = adc3xxx->gpio_cfg[gpio]; + + if (cfg) { + cfg--; /* actual value to use is stored +1 */ + regmap_update_bits(adc3xxx->regmap, + adc3xxx_gpio_ctrl_reg[gpio], + ADC3XXX_GPIO_CTRL_CFG_MASK, + cfg << ADC3XXX_GPIO_CTRL_CFG_SHIFT); + } + } + + /* Set up micbias voltage */ + for (micbias = 0; micbias < ADC3XXX_MICBIAS_PINS; micbias++) { + unsigned int vg = adc3xxx->micbias_vg[micbias]; + + regmap_update_bits(adc3xxx->regmap, + ADC3XXX_MICBIAS_CTRL, + ADC3XXX_MICBIAS_MASK << adc3xxx_micbias_shift[micbias], + vg << adc3xxx_micbias_shift[micbias]); + } +} + +static int adc3xxx_parse_dt_gpio(struct adc3xxx *adc3xxx, + const char *propname, unsigned int *cfg) +{ + struct device *dev = adc3xxx->dev; + struct device_node *np = dev->of_node; + unsigned int val; + + if (!of_property_read_u32(np, propname, &val)) { + if (val & ~15 || val == 7 || val >= 11) { + dev_err(dev, "Invalid property value for '%s'\n", propname); + return -EINVAL; + } + if (val == ADC3XXX_GPIO_GPI) + dev_warn(dev, "GPIO Input read not yet implemented\n"); + *cfg = val + 1; /* 0 => not set up, all others shifted +1 */ + } + return 0; +} + +static int adc3xxx_parse_dt_micbias(struct adc3xxx *adc3xxx, + const char *propname, unsigned int *vg) +{ + struct device *dev = adc3xxx->dev; + struct device_node *np = dev->of_node; + unsigned int val; + + if (!of_property_read_u32(np, propname, &val)) { + if (val >= ADC3XXX_MICBIAS_AVDD) { + dev_err(dev, "Invalid property value for '%s'\n", propname); + return -EINVAL; + } + *vg = val; + } + return 0; +} + +static int adc3xxx_parse_pll_mode(uint32_t val, unsigned int *pll_mode) +{ + if (val != ADC3XXX_PLL_ENABLE && val != ADC3XXX_PLL_BYPASS && + val != ADC3XXX_PLL_AUTO) + return -EINVAL; + + *pll_mode = val; + + return 0; +} + +static void adc3xxx_setup_pll(struct snd_soc_component *component, + int div_entry) +{ + int i = div_entry; + + /* P & R values */ + snd_soc_component_write(component, ADC3XXX_PLL_PROG_PR, + (adc3xxx_divs[i].pll_p << ADC3XXX_PLLP_SHIFT) | + (adc3xxx_divs[i].pll_r << ADC3XXX_PLLR_SHIFT)); + /* J value */ + snd_soc_component_write(component, ADC3XXX_PLL_PROG_J, + adc3xxx_divs[i].pll_j & ADC3XXX_PLLJ_MASK); + /* D value */ + snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_LSB, + adc3xxx_divs[i].pll_d & ADC3XXX_PLLD_LSB_MASK); + snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_MSB, + (adc3xxx_divs[i].pll_d >> 8) & ADC3XXX_PLLD_MSB_MASK); +} + +static int adc3xxx_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 snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(dai->component); + struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); + int i, width = 16; + u8 iface_len, bdiv; + + i = adc3xxx_get_divs(component->dev, adc3xxx->sysclk, + params_rate(params), adc3xxx->pll_mode); + + if (i < 0) + return i; + + /* select data word length */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + iface_len = ADC3XXX_IFACE_16BITS; + width = 16; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + iface_len = ADC3XXX_IFACE_20BITS; + width = 20; + break; + case SNDRV_PCM_FORMAT_S24_LE: + iface_len = ADC3XXX_IFACE_24BITS; + width = 24; + break; + case SNDRV_PCM_FORMAT_S32_LE: + iface_len = ADC3XXX_IFACE_32BITS; + width = 32; + break; + default: + dev_err(component->dev, "Unsupported serial data format\n"); + return -EINVAL; + } + snd_soc_component_update_bits(component, ADC3XXX_INTERFACE_CTRL_1, + ADC3XXX_WLENGTH_MASK, iface_len); + if (adc3xxx_divs[i].pll_p) { /* If PLL used for this mode */ + adc3xxx_setup_pll(component, i); + snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_USE_PLL); + if (!adc3xxx->use_pll) { + snd_soc_dapm_add_routes(dapm, adc3xxx_pll_intercon, + ARRAY_SIZE(adc3xxx_pll_intercon)); + adc3xxx->use_pll = 1; + } + } else { + snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_NO_PLL); + if (adc3xxx->use_pll) { + snd_soc_dapm_del_routes(dapm, adc3xxx_pll_intercon, + ARRAY_SIZE(adc3xxx_pll_intercon)); + adc3xxx->use_pll = 0; + } + } + + /* NADC */ + snd_soc_component_update_bits(component, ADC3XXX_ADC_NADC, + ADC3XXX_NADC_MASK, adc3xxx_divs[i].nadc); + /* MADC */ + snd_soc_component_update_bits(component, ADC3XXX_ADC_MADC, + ADC3XXX_MADC_MASK, adc3xxx_divs[i].madc); + /* AOSR */ + snd_soc_component_update_bits(component, ADC3XXX_ADC_AOSR, + ADC3XXX_AOSR_MASK, adc3xxx_divs[i].aosr); + /* BDIV N Value */ + /* BCLK is (by default) set up to be derived from ADC_CLK */ + bdiv = (adc3xxx_divs[i].aosr * adc3xxx_divs[i].madc) / (2 * width); + snd_soc_component_update_bits(component, ADC3XXX_BCLK_N_DIV, + ADC3XXX_BDIV_MASK, bdiv); + + return 0; +} + +static const char *adc3xxx_pll_mode_text(int pll_mode) +{ + switch (pll_mode) { + case ADC3XXX_PLL_AUTO: + return "PLL auto"; + case ADC3XXX_PLL_ENABLE: + return "PLL enable"; + case ADC3XXX_PLL_BYPASS: + return "PLL bypass"; + default: + break; + } + + return "PLL unknown"; +} + +static int adc3xxx_set_dai_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_component *component = codec_dai->component; + struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); + int ret; + + ret = adc3xxx_parse_pll_mode(clk_id, &adc3xxx->pll_mode); + if (ret < 0) + return ret; + + adc3xxx->sysclk = freq; + dev_dbg(component->dev, "Set sysclk to %u Hz, %s\n", + freq, adc3xxx_pll_mode_text(adc3xxx->pll_mode)); + return 0; +} + +static int adc3xxx_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); + u8 clkdir = 0, format = 0; + int master = 0; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + master = 1; + clkdir = ADC3XXX_BCLK_MASTER | ADC3XXX_WCLK_MASTER; + break; + case SND_SOC_DAIFMT_CBC_CFC: + master = 0; + break; + default: + dev_err(component->dev, "Invalid DAI clock setup\n"); + return -EINVAL; + } + + /* + * match both interface format and signal polarities since they + * are fixed + */ + switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK)) { + case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF: + format = ADC3XXX_FORMAT_I2S; + break; + case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF: + format = ADC3XXX_FORMAT_DSP; + break; + case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF: + format = ADC3XXX_FORMAT_DSP; + break; + case SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF: + format = ADC3XXX_FORMAT_RJF; + break; + case SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF: + format = ADC3XXX_FORMAT_LJF; + break; + default: + dev_err(component->dev, "Invalid DAI format\n"); + return -EINVAL; + } + + /* Add/del route enabling BCLK output as applicable */ + if (master && !adc3xxx->master) + snd_soc_dapm_add_routes(dapm, adc3xxx_bclk_out_intercon, + ARRAY_SIZE(adc3xxx_bclk_out_intercon)); + else if (!master && adc3xxx->master) + snd_soc_dapm_del_routes(dapm, adc3xxx_bclk_out_intercon, + ARRAY_SIZE(adc3xxx_bclk_out_intercon)); + adc3xxx->master = master; + + /* set clock direction and format */ + return snd_soc_component_update_bits(component, + ADC3XXX_INTERFACE_CTRL_1, + ADC3XXX_CLKDIR_MASK | ADC3XXX_FORMAT_MASK, + clkdir | format); +} + +static const struct snd_soc_dai_ops adc3xxx_dai_ops = { + .hw_params = adc3xxx_hw_params, + .set_sysclk = adc3xxx_set_dai_sysclk, + .set_fmt = adc3xxx_set_dai_fmt, +}; + +static struct snd_soc_dai_driver adc3xxx_dai = { + .name = "tlv320adc3xxx-hifi", + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = ADC3XXX_RATES, + .formats = ADC3XXX_FORMATS, + }, + .ops = &adc3xxx_dai_ops, +}; + +static const struct snd_soc_component_driver soc_component_dev_adc3xxx = { + .controls = adc3xxx_snd_controls, + .num_controls = ARRAY_SIZE(adc3xxx_snd_controls), + .dapm_widgets = adc3xxx_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(adc3xxx_dapm_widgets), + .dapm_routes = adc3xxx_intercon, + .num_dapm_routes = ARRAY_SIZE(adc3xxx_intercon), +}; + +static int adc3xxx_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct adc3xxx *adc3xxx = NULL; + int ret; + + adc3xxx = devm_kzalloc(dev, sizeof(struct adc3xxx), GFP_KERNEL); + if (!adc3xxx) + return -ENOMEM; + adc3xxx->dev = dev; + + adc3xxx->rst_pin = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(adc3xxx->rst_pin)) { + return dev_err_probe(dev, PTR_ERR(adc3xxx->rst_pin), + "Failed to request rst_pin\n"); + } + + adc3xxx->mclk = devm_clk_get(dev, NULL); + if (IS_ERR(adc3xxx->mclk)) { + /* + * The chip itself supports running off the BCLK either + * directly or via the PLL, but the driver does not (yet), so + * having a specified mclk is required. Otherwise, we could + * use the lack of a clocks property to indicate when BCLK is + * intended as the clock source. + */ + return dev_err_probe(dev, PTR_ERR(adc3xxx->mclk), + "Failed to acquire MCLK\n"); + } else if (adc3xxx->mclk) { + ret = clk_prepare_enable(adc3xxx->mclk); + if (ret < 0) + return ret; + dev_dbg(dev, "Enabled MCLK, freq %lu Hz\n", clk_get_rate(adc3xxx->mclk)); + } + + ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmdin-gpio1", &adc3xxx->gpio_cfg[0]); + if (ret < 0) + return ret; + ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmclk-gpio2", &adc3xxx->gpio_cfg[1]); + if (ret < 0) + return ret; + ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias1-vg", &adc3xxx->micbias_vg[0]); + if (ret < 0) + return ret; + ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias2-vg", &adc3xxx->micbias_vg[1]); + if (ret < 0) + return ret; + + adc3xxx->regmap = devm_regmap_init_i2c(i2c, &adc3xxx_regmap); + if (IS_ERR(adc3xxx->regmap)) { + ret = PTR_ERR(adc3xxx->regmap); + return ret; + } + + i2c_set_clientdata(i2c, adc3xxx); + + adc3xxx->type = id->driver_data; + + /* Reset codec chip */ + gpiod_set_value_cansleep(adc3xxx->rst_pin, 1); + usleep_range(2000, 100000); /* Requirement: > 10 ns (datasheet p13) */ + gpiod_set_value_cansleep(adc3xxx->rst_pin, 0); + + /* Potentially set up pins used as GPIOs */ + adc3xxx_init_gpio(adc3xxx); + + ret = snd_soc_register_component(dev, + &soc_component_dev_adc3xxx, &adc3xxx_dai, 1); + if (ret < 0) + dev_err(dev, "Failed to register codec: %d\n", ret); + + return ret; +} + +static int __exit adc3xxx_i2c_remove(struct i2c_client *client) +{ + struct adc3xxx *adc3xxx = i2c_get_clientdata(client); + + if (adc3xxx->mclk) + clk_disable_unprepare(adc3xxx->mclk); + adc3xxx_free_gpio(adc3xxx); + snd_soc_unregister_component(&client->dev); + return 0; +} + +static const struct of_device_id tlv320adc3xxx_of_match[] = { + { .compatible = "ti,tlv320adc3001", }, + { .compatible = "ti,tlv320adc3101", }, + {}, +}; +MODULE_DEVICE_TABLE(of, tlv320adc3xxx_of_match); + +static const struct i2c_device_id adc3xxx_i2c_id[] = { + { "tlv320adc3001", ADC3001 }, + { "tlv320adc3101", ADC3101 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id); + +static struct i2c_driver adc3xxx_i2c_driver = { + .driver = { + .name = "tlv320adc3xxx-codec", + .of_match_table = tlv320adc3xxx_of_match, + }, + .probe = adc3xxx_i2c_probe, + .remove = adc3xxx_i2c_remove, + .id_table = adc3xxx_i2c_id, +}; + +module_i2c_driver(adc3xxx_i2c_driver); + +MODULE_DESCRIPTION("ASoC TLV320ADC3xxx codec driver"); +MODULE_AUTHOR("shahina.s@mistralsolutions.com"); +MODULE_LICENSE("GPL v2");