// SPDX-License-Identifier: GPL-2.0-only /* * ALSA SoC TLV320AIC23 codec driver * * Author: Arun KS, <[email protected]> * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., * * Based on sound/soc/codecs/wm8731.c by Richard Purdie * * Notes: * The AIC23 is a driver for a low power stereo audio * codec tlv320aic23 * * The machine layer should disable unsupported inputs/outputs by * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/regmap.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/tlv.h> #include <sound/initval.h> #include "tlv320aic23.h" /* * AIC23 register cache */ static const struct reg_default tlv320aic23_reg[] = …; const struct regmap_config tlv320aic23_regmap = …; EXPORT_SYMBOL(…); static const char *rec_src_text[] = …; static const char *deemph_text[] = …; static SOC_ENUM_SINGLE_DECL(rec_src_enum, TLV320AIC23_ANLG, 2, rec_src_text); static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = …; static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph, TLV320AIC23_DIGT, 1, deemph_text); static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = …; /* PGA Mixer controls for Line and Mic switch */ static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = …; static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = …; static const struct snd_soc_dapm_route tlv320aic23_intercon[] = …; /* AIC23 driver data */ struct aic23 { … }; /* * Common Crystals used * 11.2896 Mhz /128 = *88.2k /192 = 58.8k * 12.0000 Mhz /125 = *96k /136 = 88.235K * 12.2880 Mhz /128 = *96k /192 = 64k * 16.9344 Mhz /128 = 132.3k /192 = *88.2k * 18.4320 Mhz /128 = 144k /192 = *96k */ /* * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 * USB BOSR 0-250/2 = 125, 1-272/2 = 136 */ static const int bosr_usb_divisor_table[] = …; #define LOWER_GROUP … #define UPPER_GROUP … static const unsigned short sr_valid_mask[] = …; /* * Every divisor is a factor of 11*12 */ #define SR_MULT … #define A(x) … static const unsigned char sr_adc_mult_table[] = …; static const unsigned char sr_dac_mult_table[] = …; static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, int dac, int dac_l, int dac_h, int need_dac) { … } static int find_rate(int mclk, u32 need_adc, u32 need_dac) { … } #ifdef DEBUG static void get_current_sample_rates(struct snd_soc_component *component, int mclk, u32 *sample_rate_adc, u32 *sample_rate_dac) { int src = snd_soc_component_read(component, TLV320AIC23_SRATE); int sr = (src >> 2) & 0x0f; int val = (mclk / bosr_usb_divisor_table[src & 3]); int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; if (src & TLV320AIC23_CLKIN_HALF) { adc >>= 1; dac >>= 1; } *sample_rate_adc = adc; *sample_rate_dac = dac; } #endif static int set_sample_rate_control(struct snd_soc_component *component, int mclk, u32 sample_rate_adc, u32 sample_rate_dac) { … } static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { … } static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction) { … } static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { … } static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { … } static int tlv320aic23_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } #define AIC23_RATES … #define AIC23_FORMATS … static const struct snd_soc_dai_ops tlv320aic23_dai_ops = …; static struct snd_soc_dai_driver tlv320aic23_dai = …; static int tlv320aic23_resume(struct snd_soc_component *component) { … } static int tlv320aic23_component_probe(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = …; int tlv320aic23_probe(struct device *dev, struct regmap *regmap) { … } EXPORT_SYMBOL(…); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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