ASoC: pcm186x: Add initial PCM1862/63/64/65 universal ADC driver
This is an initial version of the PCM186x codec driver supporting both 2-channel and 4-channel device variants. Not all device features are supported yet such as master/slave mode PLL configuration for which the codec driver currently relies on the PCM186x built-in clock auto-detection feature or the connection of digital microphones. However here is what's here and what should work: - Support for SPI and I2C low-level interfaces - Regmap support and basic register definitions - Input Mixer and Mux selection - I2C, LJ, and TDM DAI format support Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Michael Stecklein <m-stecklein@ti.com> Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andreas Dannenberg
committed by
Mark Brown
Mark Brown
orang tua
4fbd8d194f
melakukan
993a345071
719
sound/soc/codecs/pcm186x.c
Normal file
719
sound/soc/codecs/pcm186x.c
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@@ -0,0 +1,719 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Texas Instruments PCM186x Universal Audio ADC
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*
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* Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com
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* Andreas Dannenberg <dannenberg@ti.com>
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* Andrew F. Davis <afd@ti.com>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/pm_runtime.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#include "pcm186x.h"
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static const char * const pcm186x_supply_names[] = {
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"avdd", /* Analog power supply. Connect to 3.3-V supply. */
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"dvdd", /* Digital power supply. Connect to 3.3-V supply. */
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"iovdd", /* I/O power supply. Connect to 3.3-V or 1.8-V. */
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};
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#define PCM186x_NUM_SUPPLIES ARRAY_SIZE(pcm186x_supply_names)
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struct pcm186x_priv {
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struct regmap *regmap;
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struct regulator_bulk_data supplies[PCM186x_NUM_SUPPLIES];
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unsigned int sysclk;
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unsigned int tdm_offset;
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bool is_tdm_mode;
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bool is_master_mode;
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};
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static const DECLARE_TLV_DB_SCALE(pcm186x_pga_tlv, -1200, 4000, 50);
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static const struct snd_kcontrol_new pcm1863_snd_controls[] = {
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SOC_DOUBLE_R_S_TLV("ADC Capture Volume", PCM186X_PGA_VAL_CH1_L,
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PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
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pcm186x_pga_tlv),
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};
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static const struct snd_kcontrol_new pcm1865_snd_controls[] = {
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SOC_DOUBLE_R_S_TLV("ADC1 Capture Volume", PCM186X_PGA_VAL_CH1_L,
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PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
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pcm186x_pga_tlv),
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SOC_DOUBLE_R_S_TLV("ADC2 Capture Volume", PCM186X_PGA_VAL_CH2_L,
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PCM186X_PGA_VAL_CH2_R, 0, -24, 80, 7, 0,
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pcm186x_pga_tlv),
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};
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const unsigned int pcm186x_adc_input_channel_sel_value[] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x20, 0x30
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};
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static const char * const pcm186x_adcl_input_channel_sel_text[] = {
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"No Select",
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"VINL1[SE]", /* Default for ADC1L */
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"VINL2[SE]", /* Default for ADC2L */
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"VINL2[SE] + VINL1[SE]",
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"VINL3[SE]",
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"VINL3[SE] + VINL1[SE]",
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"VINL3[SE] + VINL2[SE]",
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"VINL3[SE] + VINL2[SE] + VINL1[SE]",
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"VINL4[SE]",
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"VINL4[SE] + VINL1[SE]",
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"VINL4[SE] + VINL2[SE]",
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"VINL4[SE] + VINL2[SE] + VINL1[SE]",
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"VINL4[SE] + VINL3[SE]",
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"VINL4[SE] + VINL3[SE] + VINL1[SE]",
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"VINL4[SE] + VINL3[SE] + VINL2[SE]",
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"VINL4[SE] + VINL3[SE] + VINL2[SE] + VINL1[SE]",
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"{VIN1P, VIN1M}[DIFF]",
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"{VIN4P, VIN4M}[DIFF]",
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"{VIN1P, VIN1M}[DIFF] + {VIN4P, VIN4M}[DIFF]"
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};
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static const char * const pcm186x_adcr_input_channel_sel_text[] = {
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"No Select",
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"VINR1[SE]", /* Default for ADC1R */
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"VINR2[SE]", /* Default for ADC2R */
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"VINR2[SE] + VINR1[SE]",
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"VINR3[SE]",
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"VINR3[SE] + VINR1[SE]",
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"VINR3[SE] + VINR2[SE]",
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"VINR3[SE] + VINR2[SE] + VINR1[SE]",
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"VINR4[SE]",
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"VINR4[SE] + VINR1[SE]",
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"VINR4[SE] + VINR2[SE]",
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"VINR4[SE] + VINR2[SE] + VINR1[SE]",
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"VINR4[SE] + VINR3[SE]",
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"VINR4[SE] + VINR3[SE] + VINR1[SE]",
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"VINR4[SE] + VINR3[SE] + VINR2[SE]",
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"VINR4[SE] + VINR3[SE] + VINR2[SE] + VINR1[SE]",
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"{VIN2P, VIN2M}[DIFF]",
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"{VIN3P, VIN3M}[DIFF]",
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"{VIN2P, VIN2M}[DIFF] + {VIN3P, VIN3M}[DIFF]"
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};
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static const struct soc_enum pcm186x_adc_input_channel_sel[] = {
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SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_L, 0,
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PCM186X_ADC_INPUT_SEL_MASK,
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ARRAY_SIZE(pcm186x_adcl_input_channel_sel_text),
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pcm186x_adcl_input_channel_sel_text,
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pcm186x_adc_input_channel_sel_value),
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SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_R, 0,
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PCM186X_ADC_INPUT_SEL_MASK,
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ARRAY_SIZE(pcm186x_adcr_input_channel_sel_text),
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pcm186x_adcr_input_channel_sel_text,
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pcm186x_adc_input_channel_sel_value),
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SOC_VALUE_ENUM_SINGLE(PCM186X_ADC2_INPUT_SEL_L, 0,
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PCM186X_ADC_INPUT_SEL_MASK,
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ARRAY_SIZE(pcm186x_adcl_input_channel_sel_text),
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pcm186x_adcl_input_channel_sel_text,
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pcm186x_adc_input_channel_sel_value),
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SOC_VALUE_ENUM_SINGLE(PCM186X_ADC2_INPUT_SEL_R, 0,
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PCM186X_ADC_INPUT_SEL_MASK,
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ARRAY_SIZE(pcm186x_adcr_input_channel_sel_text),
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pcm186x_adcr_input_channel_sel_text,
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pcm186x_adc_input_channel_sel_value),
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};
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static const struct snd_kcontrol_new pcm186x_adc_mux_controls[] = {
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SOC_DAPM_ENUM("ADC1 Left Input", pcm186x_adc_input_channel_sel[0]),
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SOC_DAPM_ENUM("ADC1 Right Input", pcm186x_adc_input_channel_sel[1]),
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SOC_DAPM_ENUM("ADC2 Left Input", pcm186x_adc_input_channel_sel[2]),
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SOC_DAPM_ENUM("ADC2 Right Input", pcm186x_adc_input_channel_sel[3]),
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};
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static const struct snd_soc_dapm_widget pcm1863_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("VINL1"),
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SND_SOC_DAPM_INPUT("VINR1"),
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SND_SOC_DAPM_INPUT("VINL2"),
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SND_SOC_DAPM_INPUT("VINR2"),
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SND_SOC_DAPM_INPUT("VINL3"),
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SND_SOC_DAPM_INPUT("VINR3"),
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SND_SOC_DAPM_INPUT("VINL4"),
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SND_SOC_DAPM_INPUT("VINR4"),
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SND_SOC_DAPM_MUX("ADC Left Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[0]),
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SND_SOC_DAPM_MUX("ADC Right Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[1]),
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/*
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* Put the codec into SLEEP mode when not in use, allowing the
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* Energysense mechanism to operate.
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*/
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SND_SOC_DAPM_ADC("ADC", "HiFi Capture", PCM186X_POWER_CTRL, 1, 0),
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};
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static const struct snd_soc_dapm_widget pcm1865_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("VINL1"),
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SND_SOC_DAPM_INPUT("VINR1"),
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SND_SOC_DAPM_INPUT("VINL2"),
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SND_SOC_DAPM_INPUT("VINR2"),
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SND_SOC_DAPM_INPUT("VINL3"),
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SND_SOC_DAPM_INPUT("VINR3"),
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SND_SOC_DAPM_INPUT("VINL4"),
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SND_SOC_DAPM_INPUT("VINR4"),
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SND_SOC_DAPM_MUX("ADC1 Left Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[0]),
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SND_SOC_DAPM_MUX("ADC1 Right Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[1]),
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SND_SOC_DAPM_MUX("ADC2 Left Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[2]),
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SND_SOC_DAPM_MUX("ADC2 Right Capture Source", SND_SOC_NOPM, 0, 0,
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&pcm186x_adc_mux_controls[3]),
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/*
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* Put the codec into SLEEP mode when not in use, allowing the
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* Energysense mechanism to operate.
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*/
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SND_SOC_DAPM_ADC("ADC1", "HiFi Capture 1", PCM186X_POWER_CTRL, 1, 0),
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SND_SOC_DAPM_ADC("ADC2", "HiFi Capture 2", PCM186X_POWER_CTRL, 1, 0),
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};
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static const struct snd_soc_dapm_route pcm1863_dapm_routes[] = {
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{ "ADC Left Capture Source", NULL, "VINL1" },
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{ "ADC Left Capture Source", NULL, "VINR1" },
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{ "ADC Left Capture Source", NULL, "VINL2" },
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{ "ADC Left Capture Source", NULL, "VINR2" },
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{ "ADC Left Capture Source", NULL, "VINL3" },
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{ "ADC Left Capture Source", NULL, "VINR3" },
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{ "ADC Left Capture Source", NULL, "VINL4" },
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{ "ADC Left Capture Source", NULL, "VINR4" },
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{ "ADC", NULL, "ADC Left Capture Source" },
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{ "ADC Right Capture Source", NULL, "VINL1" },
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{ "ADC Right Capture Source", NULL, "VINR1" },
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{ "ADC Right Capture Source", NULL, "VINL2" },
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{ "ADC Right Capture Source", NULL, "VINR2" },
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{ "ADC Right Capture Source", NULL, "VINL3" },
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{ "ADC Right Capture Source", NULL, "VINR3" },
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{ "ADC Right Capture Source", NULL, "VINL4" },
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{ "ADC Right Capture Source", NULL, "VINR4" },
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{ "ADC", NULL, "ADC Right Capture Source" },
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};
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static const struct snd_soc_dapm_route pcm1865_dapm_routes[] = {
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{ "ADC1 Left Capture Source", NULL, "VINL1" },
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{ "ADC1 Left Capture Source", NULL, "VINR1" },
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{ "ADC1 Left Capture Source", NULL, "VINL2" },
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{ "ADC1 Left Capture Source", NULL, "VINR2" },
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{ "ADC1 Left Capture Source", NULL, "VINL3" },
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{ "ADC1 Left Capture Source", NULL, "VINR3" },
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{ "ADC1 Left Capture Source", NULL, "VINL4" },
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{ "ADC1 Left Capture Source", NULL, "VINR4" },
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{ "ADC1", NULL, "ADC1 Left Capture Source" },
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{ "ADC1 Right Capture Source", NULL, "VINL1" },
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{ "ADC1 Right Capture Source", NULL, "VINR1" },
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{ "ADC1 Right Capture Source", NULL, "VINL2" },
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{ "ADC1 Right Capture Source", NULL, "VINR2" },
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{ "ADC1 Right Capture Source", NULL, "VINL3" },
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{ "ADC1 Right Capture Source", NULL, "VINR3" },
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{ "ADC1 Right Capture Source", NULL, "VINL4" },
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{ "ADC1 Right Capture Source", NULL, "VINR4" },
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{ "ADC1", NULL, "ADC1 Right Capture Source" },
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{ "ADC2 Left Capture Source", NULL, "VINL1" },
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{ "ADC2 Left Capture Source", NULL, "VINR1" },
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{ "ADC2 Left Capture Source", NULL, "VINL2" },
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{ "ADC2 Left Capture Source", NULL, "VINR2" },
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{ "ADC2 Left Capture Source", NULL, "VINL3" },
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{ "ADC2 Left Capture Source", NULL, "VINR3" },
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{ "ADC2 Left Capture Source", NULL, "VINL4" },
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{ "ADC2 Left Capture Source", NULL, "VINR4" },
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{ "ADC2", NULL, "ADC2 Left Capture Source" },
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{ "ADC2 Right Capture Source", NULL, "VINL1" },
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{ "ADC2 Right Capture Source", NULL, "VINR1" },
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{ "ADC2 Right Capture Source", NULL, "VINL2" },
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{ "ADC2 Right Capture Source", NULL, "VINR2" },
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{ "ADC2 Right Capture Source", NULL, "VINL3" },
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{ "ADC2 Right Capture Source", NULL, "VINR3" },
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{ "ADC2 Right Capture Source", NULL, "VINL4" },
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{ "ADC2 Right Capture Source", NULL, "VINR4" },
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{ "ADC2", NULL, "ADC2 Right Capture Source" },
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};
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static int pcm186x_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
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unsigned int rate = params_rate(params);
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unsigned int format = params_format(params);
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unsigned int width = params_width(params);
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unsigned int channels = params_channels(params);
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unsigned int div_lrck;
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unsigned int div_bck;
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u8 tdm_tx_sel = 0;
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u8 pcm_cfg = 0;
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dev_dbg(codec->dev, "%s() rate=%u format=0x%x width=%u channels=%u\n",
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__func__, rate, format, width, channels);
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switch (width) {
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case 16:
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pcm_cfg = PCM186X_PCM_CFG_RX_WLEN_16 <<
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PCM186X_PCM_CFG_RX_WLEN_SHIFT |
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PCM186X_PCM_CFG_TX_WLEN_16 <<
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PCM186X_PCM_CFG_TX_WLEN_SHIFT;
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break;
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case 20:
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pcm_cfg = PCM186X_PCM_CFG_RX_WLEN_20 <<
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PCM186X_PCM_CFG_RX_WLEN_SHIFT |
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PCM186X_PCM_CFG_TX_WLEN_20 <<
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PCM186X_PCM_CFG_TX_WLEN_SHIFT;
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break;
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case 24:
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pcm_cfg = PCM186X_PCM_CFG_RX_WLEN_24 <<
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PCM186X_PCM_CFG_RX_WLEN_SHIFT |
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PCM186X_PCM_CFG_TX_WLEN_24 <<
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PCM186X_PCM_CFG_TX_WLEN_SHIFT;
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break;
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case 32:
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pcm_cfg = PCM186X_PCM_CFG_RX_WLEN_32 <<
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PCM186X_PCM_CFG_RX_WLEN_SHIFT |
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PCM186X_PCM_CFG_TX_WLEN_32 <<
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PCM186X_PCM_CFG_TX_WLEN_SHIFT;
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break;
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default:
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return -EINVAL;
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}
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snd_soc_update_bits(codec, PCM186X_PCM_CFG,
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PCM186X_PCM_CFG_RX_WLEN_MASK |
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PCM186X_PCM_CFG_TX_WLEN_MASK,
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pcm_cfg);
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div_lrck = width * channels;
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if (priv->is_tdm_mode) {
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/* Select TDM transmission data */
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switch (channels) {
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case 2:
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tdm_tx_sel = PCM186X_TDM_TX_SEL_2CH;
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break;
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case 4:
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tdm_tx_sel = PCM186X_TDM_TX_SEL_4CH;
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break;
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case 6:
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tdm_tx_sel = PCM186X_TDM_TX_SEL_6CH;
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break;
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default:
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return -EINVAL;
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}
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snd_soc_update_bits(codec, PCM186X_TDM_TX_SEL,
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PCM186X_TDM_TX_SEL_MASK, tdm_tx_sel);
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/* In DSP/TDM mode, the LRCLK divider must be 256 */
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div_lrck = 256;
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/* Configure 1/256 duty cycle for LRCK */
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snd_soc_update_bits(codec, PCM186X_PCM_CFG,
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PCM186X_PCM_CFG_TDM_LRCK_MODE,
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PCM186X_PCM_CFG_TDM_LRCK_MODE);
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}
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/* Only configure clock dividers in master mode. */
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if (priv->is_master_mode) {
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div_bck = priv->sysclk / (div_lrck * rate);
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dev_dbg(codec->dev,
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"%s() master_clk=%u div_bck=%u div_lrck=%u\n",
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__func__, priv->sysclk, div_bck, div_lrck);
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snd_soc_write(codec, PCM186X_BCK_DIV, div_bck - 1);
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snd_soc_write(codec, PCM186X_LRK_DIV, div_lrck - 1);
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}
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return 0;
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}
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|
||||
static int pcm186x_set_fmt(struct snd_soc_dai *dai, unsigned int format)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
u8 clk_ctrl = 0;
|
||||
u8 pcm_cfg = 0;
|
||||
|
||||
dev_dbg(codec->dev, "%s() format=0x%x\n", __func__, format);
|
||||
|
||||
/* set master/slave audio interface */
|
||||
switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||
case SND_SOC_DAIFMT_CBM_CFM:
|
||||
if (!priv->sysclk) {
|
||||
dev_err(codec->dev, "operating in master mode requires sysclock to be configured\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
clk_ctrl |= PCM186X_CLK_CTRL_MST_MODE;
|
||||
priv->is_master_mode = true;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_CBS_CFS:
|
||||
priv->is_master_mode = false;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "Invalid DAI master/slave interface\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* set interface polarity */
|
||||
switch (format & SND_SOC_DAIFMT_INV_MASK) {
|
||||
case SND_SOC_DAIFMT_NB_NF:
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "Inverted DAI clocks not supported\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* set interface format */
|
||||
switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||
case SND_SOC_DAIFMT_I2S:
|
||||
pcm_cfg = PCM186X_PCM_CFG_FMT_I2S;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_LEFT_J:
|
||||
pcm_cfg = PCM186X_PCM_CFG_FMT_LEFTJ;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_DSP_A:
|
||||
priv->tdm_offset += 1;
|
||||
/* Fall through... DSP_A uses the same basic config as DSP_B
|
||||
* except we need to shift the TDM output by one BCK cycle
|
||||
*/
|
||||
case SND_SOC_DAIFMT_DSP_B:
|
||||
priv->is_tdm_mode = true;
|
||||
pcm_cfg = PCM186X_PCM_CFG_FMT_TDM;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "Invalid DAI format\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
snd_soc_update_bits(codec, PCM186X_CLK_CTRL,
|
||||
PCM186X_CLK_CTRL_MST_MODE, clk_ctrl);
|
||||
|
||||
snd_soc_write(codec, PCM186X_TDM_TX_OFFSET, priv->tdm_offset);
|
||||
|
||||
snd_soc_update_bits(codec, PCM186X_PCM_CFG,
|
||||
PCM186X_PCM_CFG_FMT_MASK, pcm_cfg);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcm186x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
|
||||
unsigned int rx_mask, int slots, int slot_width)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
unsigned int first_slot, last_slot, tdm_offset;
|
||||
|
||||
dev_dbg(codec->dev,
|
||||
"%s() tx_mask=0x%x rx_mask=0x%x slots=%d slot_width=%d\n",
|
||||
__func__, tx_mask, rx_mask, slots, slot_width);
|
||||
|
||||
if (!tx_mask) {
|
||||
dev_err(codec->dev, "tdm tx mask must not be 0\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
first_slot = __ffs(tx_mask);
|
||||
last_slot = __fls(tx_mask);
|
||||
|
||||
if (last_slot - first_slot != hweight32(tx_mask) - 1) {
|
||||
dev_err(codec->dev, "tdm tx mask must be contiguous\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
tdm_offset = first_slot * slot_width;
|
||||
|
||||
if (tdm_offset > 255) {
|
||||
dev_err(codec->dev, "tdm tx slot selection out of bounds\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
priv->tdm_offset = tdm_offset;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcm186x_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
|
||||
unsigned int freq, int dir)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
|
||||
dev_dbg(codec->dev, "%s() clk_id=%d freq=%u dir=%d\n",
|
||||
__func__, clk_id, freq, dir);
|
||||
|
||||
priv->sysclk = freq;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
const struct snd_soc_dai_ops pcm186x_dai_ops = {
|
||||
.set_sysclk = pcm186x_set_dai_sysclk,
|
||||
.set_tdm_slot = pcm186x_set_tdm_slot,
|
||||
.set_fmt = pcm186x_set_fmt,
|
||||
.hw_params = pcm186x_hw_params,
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver pcm1863_dai = {
|
||||
.name = "pcm1863-aif",
|
||||
.capture = {
|
||||
.stream_name = "Capture",
|
||||
.channels_min = 1,
|
||||
.channels_max = 2,
|
||||
.rates = PCM186X_RATES,
|
||||
.formats = PCM186X_FORMATS,
|
||||
},
|
||||
.ops = &pcm186x_dai_ops,
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver pcm1865_dai = {
|
||||
.name = "pcm1865-aif",
|
||||
.capture = {
|
||||
.stream_name = "Capture",
|
||||
.channels_min = 1,
|
||||
.channels_max = 4,
|
||||
.rates = PCM186X_RATES,
|
||||
.formats = PCM186X_FORMATS,
|
||||
},
|
||||
.ops = &pcm186x_dai_ops,
|
||||
};
|
||||
|
||||
static int pcm186x_power_on(struct snd_soc_codec *codec)
|
||||
{
|
||||
struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
int ret = 0;
|
||||
|
||||
ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
regcache_cache_only(priv->regmap, false);
|
||||
ret = regcache_sync(priv->regmap);
|
||||
if (ret) {
|
||||
dev_err(codec->dev, "Failed to restore cache\n");
|
||||
regcache_cache_only(priv->regmap, true);
|
||||
regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
return ret;
|
||||
}
|
||||
|
||||
snd_soc_update_bits(codec, PCM186X_POWER_CTRL,
|
||||
PCM186X_PWR_CTRL_PWRDN, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcm186x_power_off(struct snd_soc_codec *codec)
|
||||
{
|
||||
struct pcm186x_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
int ret;
|
||||
|
||||
snd_soc_update_bits(codec, PCM186X_POWER_CTRL,
|
||||
PCM186X_PWR_CTRL_PWRDN, PCM186X_PWR_CTRL_PWRDN);
|
||||
|
||||
regcache_cache_only(priv->regmap, true);
|
||||
|
||||
ret = regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pcm186x_set_bias_level(struct snd_soc_codec *codec,
|
||||
enum snd_soc_bias_level level)
|
||||
{
|
||||
dev_dbg(codec->dev, "## %s: %d -> %d\n", __func__,
|
||||
snd_soc_codec_get_bias_level(codec), level);
|
||||
|
||||
switch (level) {
|
||||
case SND_SOC_BIAS_ON:
|
||||
break;
|
||||
case SND_SOC_BIAS_PREPARE:
|
||||
break;
|
||||
case SND_SOC_BIAS_STANDBY:
|
||||
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF)
|
||||
pcm186x_power_on(codec);
|
||||
break;
|
||||
case SND_SOC_BIAS_OFF:
|
||||
pcm186x_power_off(codec);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_soc_codec_driver soc_codec_dev_pcm1863 = {
|
||||
.set_bias_level = pcm186x_set_bias_level,
|
||||
|
||||
.component_driver = {
|
||||
.controls = pcm1863_snd_controls,
|
||||
.num_controls = ARRAY_SIZE(pcm1863_snd_controls),
|
||||
.dapm_widgets = pcm1863_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(pcm1863_dapm_widgets),
|
||||
.dapm_routes = pcm1863_dapm_routes,
|
||||
.num_dapm_routes = ARRAY_SIZE(pcm1863_dapm_routes),
|
||||
},
|
||||
};
|
||||
|
||||
static struct snd_soc_codec_driver soc_codec_dev_pcm1865 = {
|
||||
.set_bias_level = pcm186x_set_bias_level,
|
||||
.suspend_bias_off = true,
|
||||
|
||||
.component_driver = {
|
||||
.controls = pcm1865_snd_controls,
|
||||
.num_controls = ARRAY_SIZE(pcm1865_snd_controls),
|
||||
.dapm_widgets = pcm1865_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(pcm1865_dapm_widgets),
|
||||
.dapm_routes = pcm1865_dapm_routes,
|
||||
.num_dapm_routes = ARRAY_SIZE(pcm1865_dapm_routes),
|
||||
},
|
||||
};
|
||||
|
||||
static bool pcm186x_volatile(struct device *dev, unsigned int reg)
|
||||
{
|
||||
switch (reg) {
|
||||
case PCM186X_PAGE:
|
||||
case PCM186X_DEVICE_STATUS:
|
||||
case PCM186X_FSAMPLE_STATUS:
|
||||
case PCM186X_DIV_STATUS:
|
||||
case PCM186X_CLK_STATUS:
|
||||
case PCM186X_SUPPLY_STATUS:
|
||||
case PCM186X_MMAP_STAT_CTRL:
|
||||
case PCM186X_MMAP_ADDRESS:
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static const struct regmap_range_cfg pcm186x_range = {
|
||||
.name = "Pages",
|
||||
.range_max = PCM186X_MAX_REGISTER,
|
||||
.selector_reg = PCM186X_PAGE,
|
||||
.selector_mask = 0xff,
|
||||
.window_len = PCM186X_PAGE_LEN,
|
||||
};
|
||||
|
||||
const struct regmap_config pcm186x_regmap = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
|
||||
.volatile_reg = pcm186x_volatile,
|
||||
|
||||
.ranges = &pcm186x_range,
|
||||
.num_ranges = 1,
|
||||
|
||||
.max_register = PCM186X_MAX_REGISTER,
|
||||
|
||||
.cache_type = REGCACHE_RBTREE,
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(pcm186x_regmap);
|
||||
|
||||
int pcm186x_probe(struct device *dev, enum pcm186x_type type, int irq,
|
||||
struct regmap *regmap)
|
||||
{
|
||||
struct pcm186x_priv *priv;
|
||||
int i, ret;
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(struct pcm186x_priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
dev_set_drvdata(dev, priv);
|
||||
priv->regmap = regmap;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(priv->supplies); i++)
|
||||
priv->supplies[i].supply = pcm186x_supply_names[i];
|
||||
|
||||
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
if (ret) {
|
||||
dev_err(dev, "failed to request supplies: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
if (ret) {
|
||||
dev_err(dev, "failed enable supplies: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Reset device registers for a consistent power-on like state */
|
||||
ret = regmap_write(regmap, PCM186X_PAGE, PCM186X_RESET);
|
||||
if (ret) {
|
||||
dev_err(dev, "failed to write device: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
|
||||
priv->supplies);
|
||||
if (ret) {
|
||||
dev_err(dev, "failed disable supplies: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case PCM1865:
|
||||
case PCM1864:
|
||||
ret = snd_soc_register_codec(dev, &soc_codec_dev_pcm1865,
|
||||
&pcm1865_dai, 1);
|
||||
break;
|
||||
case PCM1863:
|
||||
case PCM1862:
|
||||
default:
|
||||
ret = snd_soc_register_codec(dev, &soc_codec_dev_pcm1863,
|
||||
&pcm1863_dai, 1);
|
||||
}
|
||||
if (ret) {
|
||||
dev_err(dev, "failed to register CODEC: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pcm186x_probe);
|
||||
|
||||
int pcm186x_remove(struct device *dev)
|
||||
{
|
||||
snd_soc_unregister_codec(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(pcm186x_remove);
|
||||
|
||||
MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");
|
||||
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
|
||||
MODULE_DESCRIPTION("PCM186x Universal Audio ADC driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Reference in New Issue
Block a user