668 lines
19 KiB
C
668 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// JZ4725B CODEC driver
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//
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// Copyright (C) 2019, Paul Cercueil <paul@crapouillou.net>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/io.h>
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#include <linux/iopoll.h>
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#include <linux/regmap.h>
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#include <linux/clk.h>
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#include <linux/delay.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/initval.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#define ICDC_RGADW_OFFSET 0x00
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#define ICDC_RGDATA_OFFSET 0x04
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/* ICDC internal register access control register(RGADW) */
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#define ICDC_RGADW_RGWR BIT(16)
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#define ICDC_RGADW_RGADDR_OFFSET 8
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#define ICDC_RGADW_RGADDR_MASK GENMASK(14, ICDC_RGADW_RGADDR_OFFSET)
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#define ICDC_RGADW_RGDIN_OFFSET 0
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#define ICDC_RGADW_RGDIN_MASK GENMASK(7, ICDC_RGADW_RGDIN_OFFSET)
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/* ICDC internal register data output register (RGDATA)*/
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#define ICDC_RGDATA_IRQ BIT(8)
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#define ICDC_RGDATA_RGDOUT_OFFSET 0
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#define ICDC_RGDATA_RGDOUT_MASK GENMASK(7, ICDC_RGDATA_RGDOUT_OFFSET)
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/* JZ internal register space */
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enum {
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JZ4725B_CODEC_REG_AICR,
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JZ4725B_CODEC_REG_CR1,
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JZ4725B_CODEC_REG_CR2,
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JZ4725B_CODEC_REG_CCR1,
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JZ4725B_CODEC_REG_CCR2,
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JZ4725B_CODEC_REG_PMR1,
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JZ4725B_CODEC_REG_PMR2,
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JZ4725B_CODEC_REG_CRR,
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JZ4725B_CODEC_REG_ICR,
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JZ4725B_CODEC_REG_IFR,
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JZ4725B_CODEC_REG_CGR1,
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JZ4725B_CODEC_REG_CGR2,
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JZ4725B_CODEC_REG_CGR3,
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JZ4725B_CODEC_REG_CGR4,
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JZ4725B_CODEC_REG_CGR5,
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JZ4725B_CODEC_REG_CGR6,
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JZ4725B_CODEC_REG_CGR7,
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JZ4725B_CODEC_REG_CGR8,
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JZ4725B_CODEC_REG_CGR9,
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JZ4725B_CODEC_REG_CGR10,
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JZ4725B_CODEC_REG_TR1,
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JZ4725B_CODEC_REG_TR2,
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JZ4725B_CODEC_REG_CR3,
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JZ4725B_CODEC_REG_AGC1,
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JZ4725B_CODEC_REG_AGC2,
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JZ4725B_CODEC_REG_AGC3,
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JZ4725B_CODEC_REG_AGC4,
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JZ4725B_CODEC_REG_AGC5,
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};
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#define REG_AICR_CONFIG1_OFFSET 0
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#define REG_AICR_CONFIG1_MASK (0xf << REG_AICR_CONFIG1_OFFSET)
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#define REG_CR1_SB_MICBIAS_OFFSET 7
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#define REG_CR1_MONO_OFFSET 6
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#define REG_CR1_DAC_MUTE_OFFSET 5
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#define REG_CR1_HP_DIS_OFFSET 4
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#define REG_CR1_DACSEL_OFFSET 3
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#define REG_CR1_BYPASS_OFFSET 2
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#define REG_CR2_DAC_DEEMP_OFFSET 7
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#define REG_CR2_DAC_ADWL_OFFSET 5
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#define REG_CR2_DAC_ADWL_MASK (0x3 << REG_CR2_DAC_ADWL_OFFSET)
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#define REG_CR2_ADC_ADWL_OFFSET 3
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#define REG_CR2_ADC_ADWL_MASK (0x3 << REG_CR2_ADC_ADWL_OFFSET)
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#define REG_CR2_ADC_HPF_OFFSET 2
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#define REG_CR3_SB_MIC1_OFFSET 7
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#define REG_CR3_SB_MIC2_OFFSET 6
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#define REG_CR3_SIDETONE1_OFFSET 5
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#define REG_CR3_SIDETONE2_OFFSET 4
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#define REG_CR3_MICDIFF_OFFSET 3
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#define REG_CR3_MICSTEREO_OFFSET 2
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#define REG_CR3_INSEL_OFFSET 0
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#define REG_CR3_INSEL_MASK (0x3 << REG_CR3_INSEL_OFFSET)
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#define REG_CCR1_CONFIG4_OFFSET 0
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#define REG_CCR1_CONFIG4_MASK (0xf << REG_CCR1_CONFIG4_OFFSET)
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#define REG_CCR2_DFREQ_OFFSET 4
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#define REG_CCR2_DFREQ_MASK (0xf << REG_CCR2_DFREQ_OFFSET)
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#define REG_CCR2_AFREQ_OFFSET 0
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#define REG_CCR2_AFREQ_MASK (0xf << REG_CCR2_AFREQ_OFFSET)
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#define REG_PMR1_SB_DAC_OFFSET 7
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#define REG_PMR1_SB_OUT_OFFSET 6
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#define REG_PMR1_SB_MIX_OFFSET 5
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#define REG_PMR1_SB_ADC_OFFSET 4
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#define REG_PMR1_SB_LIN_OFFSET 3
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#define REG_PMR1_SB_IND_OFFSET 0
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#define REG_PMR2_LRGI_OFFSET 7
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#define REG_PMR2_RLGI_OFFSET 6
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#define REG_PMR2_LRGOD_OFFSET 5
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#define REG_PMR2_RLGOD_OFFSET 4
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#define REG_PMR2_GIM_OFFSET 3
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#define REG_PMR2_SB_MC_OFFSET 2
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#define REG_PMR2_SB_OFFSET 1
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#define REG_PMR2_SB_SLEEP_OFFSET 0
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#define REG_IFR_RAMP_UP_DONE_OFFSET 3
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#define REG_IFR_RAMP_DOWN_DONE_OFFSET 2
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#define REG_CGR1_GODL_OFFSET 4
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#define REG_CGR1_GODL_MASK (0xf << REG_CGR1_GODL_OFFSET)
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#define REG_CGR1_GODR_OFFSET 0
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#define REG_CGR1_GODR_MASK (0xf << REG_CGR1_GODR_OFFSET)
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#define REG_CGR2_GO1R_OFFSET 0
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#define REG_CGR2_GO1R_MASK (0x1f << REG_CGR2_GO1R_OFFSET)
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#define REG_CGR3_GO1L_OFFSET 0
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#define REG_CGR3_GO1L_MASK (0x1f << REG_CGR3_GO1L_OFFSET)
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#define REG_CGR4_GO2R_OFFSET 0
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#define REG_CGR4_GO2R_MASK (0x1f << REG_CGR4_GO2R_OFFSET)
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#define REG_CGR5_GO2L_OFFSET 0
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#define REG_CGR5_GO2L_MASK (0x1f << REG_CGR5_GO2L_OFFSET)
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#define REG_CGR6_GO3R_OFFSET 0
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#define REG_CGR6_GO3R_MASK (0x1f << REG_CGR6_GO3R_OFFSET)
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#define REG_CGR7_GO3L_OFFSET 0
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#define REG_CGR7_GO3L_MASK (0x1f << REG_CGR7_GO3L_OFFSET)
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#define REG_CGR8_GOR_OFFSET 0
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#define REG_CGR8_GOR_MASK (0x1f << REG_CGR8_GOR_OFFSET)
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#define REG_CGR9_GOL_OFFSET 0
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#define REG_CGR9_GOL_MASK (0x1f << REG_CGR9_GOL_OFFSET)
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#define REG_CGR10_GIL_OFFSET 0
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#define REG_CGR10_GIR_OFFSET 4
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struct jz_icdc {
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struct regmap *regmap;
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void __iomem *base;
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struct clk *clk;
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};
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(jz4725b_adc_tlv, 0, 150, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(jz4725b_dac_tlv, -2250, 150, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(jz4725b_mix_tlv,
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0, 11, TLV_DB_SCALE_ITEM(-2250, 0, 0),
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12, 31, TLV_DB_SCALE_ITEM(-2250, 150, 0),
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);
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static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(jz4725b_out_tlv,
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0, 11, TLV_DB_SCALE_ITEM(-3350, 200, 0),
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12, 23, TLV_DB_SCALE_ITEM(-1050, 100, 0),
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24, 31, TLV_DB_SCALE_ITEM( 100, 50, 0),
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);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(jz4725b_mic_boost_tlv, 0, 2000, 0);
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static const char * const jz4725b_mic_mode_texts[] = {
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"Single Ended", "Differential",
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};
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static const struct soc_enum jz4725b_mic_mode_enum =
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SOC_ENUM_SINGLE(JZ4725B_CODEC_REG_CR3, REG_CR3_MICDIFF_OFFSET,
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2, jz4725b_mic_mode_texts);
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static const struct snd_kcontrol_new jz4725b_codec_controls[] = {
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SOC_DOUBLE_TLV("DAC Playback Volume",
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JZ4725B_CODEC_REG_CGR1,
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REG_CGR1_GODL_OFFSET,
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REG_CGR1_GODR_OFFSET,
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0xf, 1, jz4725b_dac_tlv),
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SOC_DOUBLE_TLV("Master Capture Volume",
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JZ4725B_CODEC_REG_CGR10,
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REG_CGR10_GIL_OFFSET,
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REG_CGR10_GIR_OFFSET,
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0xf, 0, jz4725b_adc_tlv),
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SOC_DOUBLE_R_TLV("Mixer Line In Bypass Playback Volume",
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JZ4725B_CODEC_REG_CGR3,
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JZ4725B_CODEC_REG_CGR2,
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REG_CGR2_GO1R_OFFSET,
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0x1f, 1, jz4725b_mix_tlv),
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SOC_DOUBLE_R_TLV("Mixer Mic 1 Bypass Playback Volume",
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JZ4725B_CODEC_REG_CGR5,
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JZ4725B_CODEC_REG_CGR4,
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REG_CGR4_GO2R_OFFSET,
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0x1f, 1, jz4725b_mix_tlv),
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SOC_DOUBLE_R_TLV("Mixer Mic 2 Bypass Playback Volume",
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JZ4725B_CODEC_REG_CGR7,
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JZ4725B_CODEC_REG_CGR6,
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REG_CGR6_GO3R_OFFSET,
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0x1f, 1, jz4725b_mix_tlv),
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SOC_DOUBLE_R_TLV("Master Playback Volume",
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JZ4725B_CODEC_REG_CGR9,
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JZ4725B_CODEC_REG_CGR8,
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REG_CGR8_GOR_OFFSET,
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0x1f, 1, jz4725b_out_tlv),
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SOC_SINGLE("DAC Playback Switch", JZ4725B_CODEC_REG_CR1,
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REG_CR1_DAC_MUTE_OFFSET, 1, 1),
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SOC_SINGLE("Deemphasize Filter Playback Switch",
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JZ4725B_CODEC_REG_CR2,
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REG_CR2_DAC_DEEMP_OFFSET, 1, 0),
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SOC_SINGLE("High-Pass Filter Capture Switch",
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JZ4725B_CODEC_REG_CR2,
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REG_CR2_ADC_HPF_OFFSET, 1, 0),
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SOC_ENUM("Mic Mode Capture Switch", jz4725b_mic_mode_enum),
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SOC_SINGLE_TLV("Mic1 Boost Capture Volume",
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JZ4725B_CODEC_REG_PMR2,
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REG_PMR2_GIM_OFFSET,
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1, 0, jz4725b_mic_boost_tlv),
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};
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static const char * const jz4725b_codec_adc_src_texts[] = {
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"Mic 1", "Mic 2", "Line In", "Mixer",
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};
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static const unsigned int jz4725b_codec_adc_src_values[] = { 0, 1, 2, 3, };
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static SOC_VALUE_ENUM_SINGLE_DECL(jz4725b_codec_adc_src_enum,
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JZ4725B_CODEC_REG_CR3,
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REG_CR3_INSEL_OFFSET,
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REG_CR3_INSEL_MASK,
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jz4725b_codec_adc_src_texts,
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jz4725b_codec_adc_src_values);
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static const struct snd_kcontrol_new jz4725b_codec_adc_src_ctrl =
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SOC_DAPM_ENUM("ADC Source Capture Route", jz4725b_codec_adc_src_enum);
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static const struct snd_kcontrol_new jz4725b_codec_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line In Bypass Playback Switch", JZ4725B_CODEC_REG_CR1,
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REG_CR1_BYPASS_OFFSET, 1, 0),
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SOC_DAPM_SINGLE("Mic 1 Bypass Playback Switch", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SIDETONE1_OFFSET, 1, 0),
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SOC_DAPM_SINGLE("Mic 2 Bypass Playback Switch", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SIDETONE2_OFFSET, 1, 0),
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};
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static int jz4725b_out_stage_enable(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol,
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int event)
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{
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struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
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struct jz_icdc *icdc = snd_soc_component_get_drvdata(codec);
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struct regmap *map = icdc->regmap;
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unsigned int val;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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return regmap_clear_bits(map, JZ4725B_CODEC_REG_IFR,
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BIT(REG_IFR_RAMP_UP_DONE_OFFSET));
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case SND_SOC_DAPM_POST_PMU:
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return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR,
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val, val & BIT(REG_IFR_RAMP_UP_DONE_OFFSET),
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100000, 500000);
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case SND_SOC_DAPM_PRE_PMD:
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return regmap_clear_bits(map, JZ4725B_CODEC_REG_IFR,
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BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET));
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case SND_SOC_DAPM_POST_PMD:
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return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR,
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val, val & BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET),
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100000, 500000);
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default:
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return -EINVAL;
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}
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}
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static const struct snd_soc_dapm_widget jz4725b_codec_dapm_widgets[] = {
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/* DAC */
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SND_SOC_DAPM_DAC("DAC", "Playback",
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JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_DAC_OFFSET, 1),
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/* ADC */
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SND_SOC_DAPM_ADC("ADC", "Capture",
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JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_ADC_OFFSET, 1),
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SND_SOC_DAPM_MUX("ADC Source Capture Route", SND_SOC_NOPM, 0, 0,
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&jz4725b_codec_adc_src_ctrl),
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/* Mixer */
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SND_SOC_DAPM_MIXER("Mixer", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_MIX_OFFSET, 1,
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jz4725b_codec_mixer_controls,
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ARRAY_SIZE(jz4725b_codec_mixer_controls)),
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SND_SOC_DAPM_MIXER("DAC to Mixer", JZ4725B_CODEC_REG_CR1,
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REG_CR1_DACSEL_OFFSET, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("Line In", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_LIN_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER("HP Out", JZ4725B_CODEC_REG_CR1,
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REG_CR1_HP_DIS_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER("Mic 1", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SB_MIC1_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER("Mic 2", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SB_MIC2_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER_E("Out Stage", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_OUT_OFFSET, 1, NULL, 0,
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jz4725b_out_stage_enable,
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SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
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SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_MIXER("Mixer to ADC", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_IND_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_SUPPLY("Mic Bias", JZ4725B_CODEC_REG_CR1,
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REG_CR1_SB_MICBIAS_OFFSET, 1, NULL, 0),
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/* Pins */
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SND_SOC_DAPM_INPUT("MIC1P"),
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SND_SOC_DAPM_INPUT("MIC1N"),
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SND_SOC_DAPM_INPUT("MIC2P"),
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SND_SOC_DAPM_INPUT("MIC2N"),
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SND_SOC_DAPM_INPUT("LLINEIN"),
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SND_SOC_DAPM_INPUT("RLINEIN"),
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SND_SOC_DAPM_OUTPUT("LHPOUT"),
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SND_SOC_DAPM_OUTPUT("RHPOUT"),
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};
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static const struct snd_soc_dapm_route jz4725b_codec_dapm_routes[] = {
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{"Mic 1", NULL, "MIC1P"},
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{"Mic 1", NULL, "MIC1N"},
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{"Mic 2", NULL, "MIC2P"},
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{"Mic 2", NULL, "MIC2N"},
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{"Line In", NULL, "LLINEIN"},
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{"Line In", NULL, "RLINEIN"},
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{"Mixer", "Mic 1 Bypass Playback Switch", "Mic 1"},
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{"Mixer", "Mic 2 Bypass Playback Switch", "Mic 2"},
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{"Mixer", "Line In Bypass Playback Switch", "Line In"},
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{"DAC to Mixer", NULL, "DAC"},
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{"Mixer", NULL, "DAC to Mixer"},
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{"Mixer to ADC", NULL, "Mixer"},
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{"ADC Source Capture Route", "Mixer", "Mixer to ADC"},
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{"ADC Source Capture Route", "Line In", "Line In"},
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{"ADC Source Capture Route", "Mic 1", "Mic 1"},
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{"ADC Source Capture Route", "Mic 2", "Mic 2"},
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{"ADC", NULL, "ADC Source Capture Route"},
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{"Out Stage", NULL, "Mixer"},
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{"HP Out", NULL, "Out Stage"},
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{"LHPOUT", NULL, "HP Out"},
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{"RHPOUT", NULL, "HP Out"},
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};
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static int jz4725b_codec_set_bias_level(struct snd_soc_component *component,
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enum snd_soc_bias_level level)
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{
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struct jz_icdc *icdc = snd_soc_component_get_drvdata(component);
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struct regmap *map = icdc->regmap;
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switch (level) {
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case SND_SOC_BIAS_ON:
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regmap_clear_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_SLEEP_OFFSET));
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break;
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case SND_SOC_BIAS_PREPARE:
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/* Enable sound hardware */
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regmap_clear_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_OFFSET));
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msleep(224);
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break;
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case SND_SOC_BIAS_STANDBY:
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regmap_set_bits(map, JZ4725B_CODEC_REG_PMR2,
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|
BIT(REG_PMR2_SB_SLEEP_OFFSET));
|
|
break;
|
|
case SND_SOC_BIAS_OFF:
|
|
regmap_set_bits(map, JZ4725B_CODEC_REG_PMR2,
|
|
BIT(REG_PMR2_SB_OFFSET));
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4725b_codec_dev_probe(struct snd_soc_component *component)
|
|
{
|
|
struct jz_icdc *icdc = snd_soc_component_get_drvdata(component);
|
|
struct regmap *map = icdc->regmap;
|
|
|
|
clk_prepare_enable(icdc->clk);
|
|
|
|
/* Write CONFIGn (n=1 to 8) bits.
|
|
* The value 0x0f is specified in the datasheet as a requirement.
|
|
*/
|
|
regmap_write(map, JZ4725B_CODEC_REG_AICR,
|
|
0xf << REG_AICR_CONFIG1_OFFSET);
|
|
regmap_write(map, JZ4725B_CODEC_REG_CCR1,
|
|
0x0 << REG_CCR1_CONFIG4_OFFSET);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jz4725b_codec_dev_remove(struct snd_soc_component *component)
|
|
{
|
|
struct jz_icdc *icdc = snd_soc_component_get_drvdata(component);
|
|
|
|
clk_disable_unprepare(icdc->clk);
|
|
}
|
|
|
|
static const struct snd_soc_component_driver jz4725b_codec = {
|
|
.probe = jz4725b_codec_dev_probe,
|
|
.remove = jz4725b_codec_dev_remove,
|
|
.set_bias_level = jz4725b_codec_set_bias_level,
|
|
.controls = jz4725b_codec_controls,
|
|
.num_controls = ARRAY_SIZE(jz4725b_codec_controls),
|
|
.dapm_widgets = jz4725b_codec_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(jz4725b_codec_dapm_widgets),
|
|
.dapm_routes = jz4725b_codec_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(jz4725b_codec_dapm_routes),
|
|
.suspend_bias_off = 1,
|
|
.use_pmdown_time = 1,
|
|
};
|
|
|
|
static const unsigned int jz4725b_codec_sample_rates[] = {
|
|
96000, 48000, 44100, 32000,
|
|
24000, 22050, 16000, 12000,
|
|
11025, 9600, 8000,
|
|
};
|
|
|
|
static int jz4725b_codec_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
|
|
{
|
|
struct jz_icdc *icdc = snd_soc_component_get_drvdata(dai->component);
|
|
unsigned int rate, bit_width;
|
|
|
|
switch (params_format(params)) {
|
|
case SNDRV_PCM_FORMAT_S16_LE:
|
|
bit_width = 0;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S18_3LE:
|
|
bit_width = 1;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S20_3LE:
|
|
bit_width = 2;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S24_3LE:
|
|
bit_width = 3;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (rate = 0; rate < ARRAY_SIZE(jz4725b_codec_sample_rates); rate++) {
|
|
if (jz4725b_codec_sample_rates[rate] == params_rate(params))
|
|
break;
|
|
}
|
|
|
|
if (rate == ARRAY_SIZE(jz4725b_codec_sample_rates))
|
|
return -EINVAL;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
|
regmap_update_bits(icdc->regmap,
|
|
JZ4725B_CODEC_REG_CR2,
|
|
REG_CR2_DAC_ADWL_MASK,
|
|
bit_width << REG_CR2_DAC_ADWL_OFFSET);
|
|
|
|
regmap_update_bits(icdc->regmap,
|
|
JZ4725B_CODEC_REG_CCR2,
|
|
REG_CCR2_DFREQ_MASK,
|
|
rate << REG_CCR2_DFREQ_OFFSET);
|
|
} else {
|
|
regmap_update_bits(icdc->regmap,
|
|
JZ4725B_CODEC_REG_CR2,
|
|
REG_CR2_ADC_ADWL_MASK,
|
|
bit_width << REG_CR2_ADC_ADWL_OFFSET);
|
|
|
|
regmap_update_bits(icdc->regmap,
|
|
JZ4725B_CODEC_REG_CCR2,
|
|
REG_CCR2_AFREQ_MASK,
|
|
rate << REG_CCR2_AFREQ_OFFSET);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops jz4725b_codec_dai_ops = {
|
|
.hw_params = jz4725b_codec_hw_params,
|
|
};
|
|
|
|
#define JZ_ICDC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \
|
|
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_3LE)
|
|
|
|
static struct snd_soc_dai_driver jz4725b_codec_dai = {
|
|
.name = "jz4725b-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
|
.formats = JZ_ICDC_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
|
.formats = JZ_ICDC_FORMATS,
|
|
},
|
|
.ops = &jz4725b_codec_dai_ops,
|
|
};
|
|
|
|
static bool jz4725b_codec_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
return reg == JZ4725B_CODEC_REG_IFR;
|
|
}
|
|
|
|
static bool jz4725b_codec_can_access_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
return (reg != JZ4725B_CODEC_REG_TR1) && (reg != JZ4725B_CODEC_REG_TR2);
|
|
}
|
|
|
|
static int jz4725b_codec_io_wait(struct jz_icdc *icdc)
|
|
{
|
|
u32 reg;
|
|
|
|
return readl_poll_timeout(icdc->base + ICDC_RGADW_OFFSET, reg,
|
|
!(reg & ICDC_RGADW_RGWR), 1000, 10000);
|
|
}
|
|
|
|
static int jz4725b_codec_reg_read(void *context, unsigned int reg,
|
|
unsigned int *val)
|
|
{
|
|
struct jz_icdc *icdc = context;
|
|
unsigned int i;
|
|
u32 tmp;
|
|
int ret;
|
|
|
|
ret = jz4725b_codec_io_wait(icdc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
tmp = readl(icdc->base + ICDC_RGADW_OFFSET);
|
|
tmp = (tmp & ~ICDC_RGADW_RGADDR_MASK)
|
|
| (reg << ICDC_RGADW_RGADDR_OFFSET);
|
|
writel(tmp, icdc->base + ICDC_RGADW_OFFSET);
|
|
|
|
/* wait 6+ cycles */
|
|
for (i = 0; i < 6; i++)
|
|
*val = readl(icdc->base + ICDC_RGDATA_OFFSET) &
|
|
ICDC_RGDATA_RGDOUT_MASK;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4725b_codec_reg_write(void *context, unsigned int reg,
|
|
unsigned int val)
|
|
{
|
|
struct jz_icdc *icdc = context;
|
|
int ret;
|
|
|
|
ret = jz4725b_codec_io_wait(icdc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
writel(ICDC_RGADW_RGWR | (reg << ICDC_RGADW_RGADDR_OFFSET) | val,
|
|
icdc->base + ICDC_RGADW_OFFSET);
|
|
|
|
ret = jz4725b_codec_io_wait(icdc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const u8 jz4725b_codec_reg_defaults[] = {
|
|
0x0c, 0xaa, 0x78, 0x00, 0x00, 0xff, 0x03, 0x51,
|
|
0x3f, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04,
|
|
0x04, 0x0a, 0x0a, 0x00, 0x00, 0x00, 0xc0, 0x34,
|
|
0x07, 0x44, 0x1f, 0x00,
|
|
};
|
|
|
|
static const struct regmap_config jz4725b_codec_regmap_config = {
|
|
.reg_bits = 7,
|
|
.val_bits = 8,
|
|
|
|
.max_register = JZ4725B_CODEC_REG_AGC5,
|
|
.volatile_reg = jz4725b_codec_volatile,
|
|
.readable_reg = jz4725b_codec_can_access_reg,
|
|
.writeable_reg = jz4725b_codec_can_access_reg,
|
|
|
|
.reg_read = jz4725b_codec_reg_read,
|
|
.reg_write = jz4725b_codec_reg_write,
|
|
|
|
.reg_defaults_raw = jz4725b_codec_reg_defaults,
|
|
.num_reg_defaults_raw = ARRAY_SIZE(jz4725b_codec_reg_defaults),
|
|
.cache_type = REGCACHE_FLAT,
|
|
};
|
|
|
|
static int jz4725b_codec_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct jz_icdc *icdc;
|
|
int ret;
|
|
|
|
icdc = devm_kzalloc(dev, sizeof(*icdc), GFP_KERNEL);
|
|
if (!icdc)
|
|
return -ENOMEM;
|
|
|
|
icdc->base = devm_platform_ioremap_resource(pdev, 0);
|
|
if (IS_ERR(icdc->base))
|
|
return PTR_ERR(icdc->base);
|
|
|
|
icdc->regmap = devm_regmap_init(dev, NULL, icdc,
|
|
&jz4725b_codec_regmap_config);
|
|
if (IS_ERR(icdc->regmap))
|
|
return PTR_ERR(icdc->regmap);
|
|
|
|
icdc->clk = devm_clk_get(&pdev->dev, "aic");
|
|
if (IS_ERR(icdc->clk))
|
|
return PTR_ERR(icdc->clk);
|
|
|
|
platform_set_drvdata(pdev, icdc);
|
|
|
|
ret = devm_snd_soc_register_component(dev, &jz4725b_codec,
|
|
&jz4725b_codec_dai, 1);
|
|
if (ret)
|
|
dev_err(dev, "Failed to register codec\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct of_device_id jz4725b_codec_of_matches[] = {
|
|
{ .compatible = "ingenic,jz4725b-codec", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, jz4725b_codec_of_matches);
|
|
|
|
static struct platform_driver jz4725b_codec_driver = {
|
|
.probe = jz4725b_codec_probe,
|
|
.driver = {
|
|
.name = "jz4725b-codec",
|
|
.of_match_table = jz4725b_codec_of_matches,
|
|
},
|
|
};
|
|
module_platform_driver(jz4725b_codec_driver);
|
|
|
|
MODULE_DESCRIPTION("JZ4725B SoC internal codec driver");
|
|
MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
|
|
MODULE_LICENSE("GPL v2");
|