649 lines
19 KiB
C
Executable File
649 lines
19 KiB
C
Executable File
/*
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* Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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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/i2c.h>
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#include <linux/slab.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.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/tlv.h>
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#include "ml26124.h"
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#define DVOL_CTL_DVMUTE_ON BIT(4) /* Digital volume MUTE On */
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#define DVOL_CTL_DVMUTE_OFF 0 /* Digital volume MUTE Off */
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#define ML26124_SAI_NO_DELAY BIT(1)
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#define ML26124_SAI_FRAME_SYNC (BIT(5) | BIT(0)) /* For mono (Telecodec) */
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#define ML26134_CACHESIZE 212
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#define ML26124_VMID BIT(1)
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#define ML26124_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 |\
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SNDRV_PCM_RATE_48000)
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#define ML26124_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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#define ML26124_NUM_REGISTER ML26134_CACHESIZE
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struct ml26124_priv {
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u32 mclk;
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u32 rate;
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struct regmap *regmap;
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int clk_in;
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struct snd_pcm_substream *substream;
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};
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struct clk_coeff {
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u32 mclk;
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u32 rate;
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u8 pllnl;
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u8 pllnh;
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u8 pllml;
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u8 pllmh;
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u8 plldiv;
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};
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/* ML26124 configuration */
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static const DECLARE_TLV_DB_SCALE(digital_tlv, -7150, 50, 0);
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static const DECLARE_TLV_DB_SCALE(alclvl, -2250, 150, 0);
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static const DECLARE_TLV_DB_SCALE(mingain, -1200, 600, 0);
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static const DECLARE_TLV_DB_SCALE(maxgain, -675, 600, 0);
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static const DECLARE_TLV_DB_SCALE(boost_vol, -1200, 75, 0);
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static const DECLARE_TLV_DB_SCALE(ngth, -7650, 150, 0);
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static const char * const ml26124_companding[] = {"16bit PCM", "u-law",
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"A-law"};
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static SOC_ENUM_SINGLE_DECL(ml26124_adc_companding_enum,
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ML26124_SAI_TRANS_CTL, 6, ml26124_companding);
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static SOC_ENUM_SINGLE_DECL(ml26124_dac_companding_enum,
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ML26124_SAI_RCV_CTL, 6, ml26124_companding);
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static const struct snd_kcontrol_new ml26124_snd_controls[] = {
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SOC_SINGLE_TLV("Capture Digital Volume", ML26124_RECORD_DIG_VOL, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("Playback Digital Volume", ML26124_PLBAK_DIG_VOL, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("Digital Boost Volume", ML26124_DIGI_BOOST_VOL, 0,
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0x3f, 0, boost_vol),
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SOC_SINGLE_TLV("EQ Band0 Volume", ML26124_EQ_GAIN_BRAND0, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("EQ Band1 Volume", ML26124_EQ_GAIN_BRAND1, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("EQ Band2 Volume", ML26124_EQ_GAIN_BRAND2, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("EQ Band3 Volume", ML26124_EQ_GAIN_BRAND3, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("EQ Band4 Volume", ML26124_EQ_GAIN_BRAND4, 0,
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0xff, 1, digital_tlv),
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SOC_SINGLE_TLV("ALC Target Level", ML26124_ALC_TARGET_LEV, 0,
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0xf, 1, alclvl),
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SOC_SINGLE_TLV("ALC Min Input Volume", ML26124_ALC_MAXMIN_GAIN, 0,
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7, 0, mingain),
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SOC_SINGLE_TLV("ALC Max Input Volume", ML26124_ALC_MAXMIN_GAIN, 4,
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7, 1, maxgain),
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SOC_SINGLE_TLV("Playback Limiter Min Input Volume",
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ML26124_PL_MAXMIN_GAIN, 0, 7, 0, mingain),
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SOC_SINGLE_TLV("Playback Limiter Max Input Volume",
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ML26124_PL_MAXMIN_GAIN, 4, 7, 1, maxgain),
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SOC_SINGLE_TLV("Playback Boost Volume", ML26124_PLYBAK_BOST_VOL, 0,
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0x3f, 0, boost_vol),
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SOC_SINGLE("DC High Pass Filter Switch", ML26124_FILTER_EN, 0, 1, 0),
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SOC_SINGLE("Noise High Pass Filter Switch", ML26124_FILTER_EN, 1, 1, 0),
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SOC_SINGLE("ZC Switch", ML26124_PW_ZCCMP_PW_MNG, 1,
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1, 0),
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SOC_SINGLE("EQ Band0 Switch", ML26124_FILTER_EN, 2, 1, 0),
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SOC_SINGLE("EQ Band1 Switch", ML26124_FILTER_EN, 3, 1, 0),
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SOC_SINGLE("EQ Band2 Switch", ML26124_FILTER_EN, 4, 1, 0),
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SOC_SINGLE("EQ Band3 Switch", ML26124_FILTER_EN, 5, 1, 0),
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SOC_SINGLE("EQ Band4 Switch", ML26124_FILTER_EN, 6, 1, 0),
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SOC_SINGLE("Play Limiter", ML26124_DVOL_CTL, 0, 1, 0),
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SOC_SINGLE("Capture Limiter", ML26124_DVOL_CTL, 1, 1, 0),
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SOC_SINGLE("Digital Volume Fade Switch", ML26124_DVOL_CTL, 3, 1, 0),
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SOC_SINGLE("Digital Switch", ML26124_DVOL_CTL, 4, 1, 0),
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SOC_ENUM("DAC Companding", ml26124_dac_companding_enum),
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SOC_ENUM("ADC Companding", ml26124_adc_companding_enum),
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};
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static const struct snd_kcontrol_new ml26124_output_mixer_controls[] = {
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SOC_DAPM_SINGLE("DAC Switch", ML26124_SPK_AMP_OUT, 1, 1, 0),
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SOC_DAPM_SINGLE("Line in loopback Switch", ML26124_SPK_AMP_OUT, 3, 1,
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0),
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SOC_DAPM_SINGLE("PGA Switch", ML26124_SPK_AMP_OUT, 5, 1, 0),
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};
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/* Input mux */
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static const char * const ml26124_input_select[] = {"Analog MIC SingleEnded in",
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"Digital MIC in", "Analog MIC Differential in"};
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static SOC_ENUM_SINGLE_DECL(ml26124_insel_enum,
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ML26124_MIC_IF_CTL, 0, ml26124_input_select);
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static const struct snd_kcontrol_new ml26124_input_mux_controls =
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SOC_DAPM_ENUM("Input Select", ml26124_insel_enum);
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static const struct snd_kcontrol_new ml26124_line_control =
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SOC_DAPM_SINGLE("Switch", ML26124_PW_LOUT_PW_MNG, 1, 1, 0);
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static const struct snd_soc_dapm_widget ml26124_dapm_widgets[] = {
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SND_SOC_DAPM_SUPPLY("MCLKEN", ML26124_CLK_EN, 0, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY("PLLEN", ML26124_CLK_EN, 1, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY("PLLOE", ML26124_CLK_EN, 2, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY("MICBIAS", ML26124_PW_REF_PW_MNG, 2, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
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&ml26124_output_mixer_controls[0],
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ARRAY_SIZE(ml26124_output_mixer_controls)),
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SND_SOC_DAPM_DAC("DAC", "Playback", ML26124_PW_DAC_PW_MNG, 1, 0),
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SND_SOC_DAPM_ADC("ADC", "Capture", ML26124_PW_IN_PW_MNG, 1, 0),
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SND_SOC_DAPM_PGA("PGA", ML26124_PW_IN_PW_MNG, 3, 0, NULL, 0),
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SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
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&ml26124_input_mux_controls),
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SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
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&ml26124_line_control),
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SND_SOC_DAPM_INPUT("MDIN"),
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SND_SOC_DAPM_INPUT("MIN"),
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SND_SOC_DAPM_INPUT("LIN"),
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SND_SOC_DAPM_OUTPUT("SPOUT"),
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SND_SOC_DAPM_OUTPUT("LOUT"),
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};
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static const struct snd_soc_dapm_route ml26124_intercon[] = {
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/* Supply */
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{"DAC", NULL, "MCLKEN"},
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{"ADC", NULL, "MCLKEN"},
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{"DAC", NULL, "PLLEN"},
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{"ADC", NULL, "PLLEN"},
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{"DAC", NULL, "PLLOE"},
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{"ADC", NULL, "PLLOE"},
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/* output mixer */
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{"Output Mixer", "DAC Switch", "DAC"},
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{"Output Mixer", "Line in loopback Switch", "LIN"},
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/* outputs */
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{"LOUT", NULL, "Output Mixer"},
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{"SPOUT", NULL, "Output Mixer"},
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{"Line Out Enable", NULL, "LOUT"},
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/* input */
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{"ADC", NULL, "Input Mux"},
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{"Input Mux", "Analog MIC SingleEnded in", "PGA"},
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{"Input Mux", "Analog MIC Differential in", "PGA"},
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{"PGA", NULL, "MIN"},
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};
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/* PLLOutputFreq(Hz) = InputMclkFreq(Hz) * PLLM / (PLLN * PLLDIV) */
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static const struct clk_coeff coeff_div[] = {
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{12288000, 16000, 0xc, 0x0, 0x20, 0x0, 0x4},
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{12288000, 32000, 0xc, 0x0, 0x20, 0x0, 0x4},
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{12288000, 48000, 0xc, 0x0, 0x30, 0x0, 0x4},
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};
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static struct reg_default ml26124_reg[] = {
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/* CLOCK control Register */
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{0x00, 0x00 }, /* Sampling Rate */
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{0x02, 0x00}, /* PLL NL */
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{0x04, 0x00}, /* PLLNH */
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{0x06, 0x00}, /* PLLML */
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{0x08, 0x00}, /* MLLMH */
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{0x0a, 0x00}, /* PLLDIV */
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{0x0c, 0x00}, /* Clock Enable */
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{0x0e, 0x00}, /* CLK Input/Output Control */
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/* System Control Register */
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{0x10, 0x00}, /* Software RESET */
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{0x12, 0x00}, /* Record/Playback Run */
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{0x14, 0x00}, /* Mic Input/Output control */
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/* Power Management Register */
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{0x20, 0x00}, /* Reference Power Management */
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{0x22, 0x00}, /* Input Power Management */
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{0x24, 0x00}, /* DAC Power Management */
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{0x26, 0x00}, /* SP-AMP Power Management */
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{0x28, 0x00}, /* LINEOUT Power Management */
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{0x2a, 0x00}, /* VIDEO Power Management */
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{0x2e, 0x00}, /* AC-CMP Power Management */
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/* Analog reference Control Register */
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{0x30, 0x04}, /* MICBIAS Voltage Control */
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/* Input/Output Amplifier Control Register */
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{0x32, 0x10}, /* MIC Input Volume */
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{0x38, 0x00}, /* Mic Boost Volume */
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{0x3a, 0x33}, /* Speaker AMP Volume */
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{0x48, 0x00}, /* AMP Volume Control Function Enable */
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{0x4a, 0x00}, /* Amplifier Volume Fader Control */
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/* Analog Path Control Register */
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{0x54, 0x00}, /* Speaker AMP Output Control */
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{0x5a, 0x00}, /* Mic IF Control */
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{0xe8, 0x01}, /* Mic Select Control */
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/* Audio Interface Control Register */
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{0x60, 0x00}, /* SAI-Trans Control */
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{0x62, 0x00}, /* SAI-Receive Control */
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{0x64, 0x00}, /* SAI Mode select */
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/* DSP Control Register */
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{0x66, 0x01}, /* Filter Func Enable */
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{0x68, 0x00}, /* Volume Control Func Enable */
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{0x6A, 0x00}, /* Mixer & Volume Control*/
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{0x6C, 0xff}, /* Record Digital Volume */
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{0x70, 0xff}, /* Playback Digital Volume */
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{0x72, 0x10}, /* Digital Boost Volume */
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{0x74, 0xe7}, /* EQ gain Band0 */
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{0x76, 0xe7}, /* EQ gain Band1 */
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{0x78, 0xe7}, /* EQ gain Band2 */
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{0x7A, 0xe7}, /* EQ gain Band3 */
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{0x7C, 0xe7}, /* EQ gain Band4 */
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{0x7E, 0x00}, /* HPF2 CutOff*/
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{0x80, 0x00}, /* EQ Band0 Coef0L */
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{0x82, 0x00}, /* EQ Band0 Coef0H */
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{0x84, 0x00}, /* EQ Band0 Coef0L */
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{0x86, 0x00}, /* EQ Band0 Coef0H */
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{0x88, 0x00}, /* EQ Band1 Coef0L */
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{0x8A, 0x00}, /* EQ Band1 Coef0H */
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{0x8C, 0x00}, /* EQ Band1 Coef0L */
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{0x8E, 0x00}, /* EQ Band1 Coef0H */
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{0x90, 0x00}, /* EQ Band2 Coef0L */
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{0x92, 0x00}, /* EQ Band2 Coef0H */
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{0x94, 0x00}, /* EQ Band2 Coef0L */
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{0x96, 0x00}, /* EQ Band2 Coef0H */
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{0x98, 0x00}, /* EQ Band3 Coef0L */
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{0x9A, 0x00}, /* EQ Band3 Coef0H */
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{0x9C, 0x00}, /* EQ Band3 Coef0L */
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{0x9E, 0x00}, /* EQ Band3 Coef0H */
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{0xA0, 0x00}, /* EQ Band4 Coef0L */
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{0xA2, 0x00}, /* EQ Band4 Coef0H */
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{0xA4, 0x00}, /* EQ Band4 Coef0L */
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{0xA6, 0x00}, /* EQ Band4 Coef0H */
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/* ALC Control Register */
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{0xb0, 0x00}, /* ALC Mode */
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{0xb2, 0x02}, /* ALC Attack Time */
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{0xb4, 0x03}, /* ALC Decay Time */
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{0xb6, 0x00}, /* ALC Hold Time */
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{0xb8, 0x0b}, /* ALC Target Level */
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{0xba, 0x70}, /* ALC Max/Min Gain */
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{0xbc, 0x00}, /* Noise Gate Threshold */
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{0xbe, 0x00}, /* ALC ZeroCross TimeOut */
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/* Playback Limiter Control Register */
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{0xc0, 0x04}, /* PL Attack Time */
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{0xc2, 0x05}, /* PL Decay Time */
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{0xc4, 0x0d}, /* PL Target Level */
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{0xc6, 0x70}, /* PL Max/Min Gain */
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{0xc8, 0x10}, /* Playback Boost Volume */
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{0xca, 0x00}, /* PL ZeroCross TimeOut */
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/* Video Amplifier Control Register */
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{0xd0, 0x01}, /* VIDEO AMP Gain Control */
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{0xd2, 0x01}, /* VIDEO AMP Setup 1 */
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{0xd4, 0x01}, /* VIDEO AMP Control2 */
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};
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/* Get sampling rate value of sampling rate setting register (0x0) */
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static inline int get_srate(int rate)
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{
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int srate;
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switch (rate) {
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case 16000:
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srate = 3;
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break;
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case 32000:
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srate = 6;
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break;
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case 48000:
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srate = 8;
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break;
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default:
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return -EINVAL;
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}
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return srate;
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}
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static inline int get_coeff(int mclk, int rate)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
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if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
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return i;
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}
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return -EINVAL;
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}
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static int ml26124_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_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 ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
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int i = get_coeff(priv->mclk, params_rate(hw_params));
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if (i < 0)
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return i;
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priv->substream = substream;
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priv->rate = params_rate(hw_params);
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if (priv->clk_in) {
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switch (priv->mclk / params_rate(hw_params)) {
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case 256:
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snd_soc_update_bits(codec, ML26124_CLK_CTL,
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BIT(0) | BIT(1), 1);
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break;
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case 512:
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snd_soc_update_bits(codec, ML26124_CLK_CTL,
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BIT(0) | BIT(1), 2);
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break;
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case 1024:
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snd_soc_update_bits(codec, ML26124_CLK_CTL,
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BIT(0) | BIT(1), 3);
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break;
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default:
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dev_err(codec->dev, "Unsupported MCLKI\n");
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break;
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}
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} else {
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snd_soc_update_bits(codec, ML26124_CLK_CTL,
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BIT(0) | BIT(1), 0);
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}
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switch (params_rate(hw_params)) {
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case 16000:
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snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
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get_srate(params_rate(hw_params)));
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snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
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coeff_div[i].pllnl);
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snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
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coeff_div[i].pllnh);
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snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
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coeff_div[i].pllml);
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snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
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coeff_div[i].pllmh);
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snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
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coeff_div[i].plldiv);
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break;
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case 32000:
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snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
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get_srate(params_rate(hw_params)));
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snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
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coeff_div[i].pllnl);
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snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
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coeff_div[i].pllnh);
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snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
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coeff_div[i].pllml);
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snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
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coeff_div[i].pllmh);
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snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
|
|
coeff_div[i].plldiv);
|
|
break;
|
|
case 48000:
|
|
snd_soc_update_bits(codec, ML26124_SMPLING_RATE, 0xf,
|
|
get_srate(params_rate(hw_params)));
|
|
snd_soc_update_bits(codec, ML26124_PLLNL, 0xff,
|
|
coeff_div[i].pllnl);
|
|
snd_soc_update_bits(codec, ML26124_PLLNH, 0x1,
|
|
coeff_div[i].pllnh);
|
|
snd_soc_update_bits(codec, ML26124_PLLML, 0xff,
|
|
coeff_div[i].pllml);
|
|
snd_soc_update_bits(codec, ML26124_PLLMH, 0x3f,
|
|
coeff_div[i].pllmh);
|
|
snd_soc_update_bits(codec, ML26124_PLLDIV, 0x1f,
|
|
coeff_div[i].plldiv);
|
|
break;
|
|
default:
|
|
pr_err("%s:this rate is no support for ml26124\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ml26124_mute(struct snd_soc_dai *dai, int mute)
|
|
{
|
|
struct snd_soc_codec *codec = dai->codec;
|
|
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
|
|
|
|
switch (priv->substream->stream) {
|
|
case SNDRV_PCM_STREAM_CAPTURE:
|
|
snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(0), 1);
|
|
break;
|
|
case SNDRV_PCM_STREAM_PLAYBACK:
|
|
snd_soc_update_bits(codec, ML26124_REC_PLYBAK_RUN, BIT(1), 2);
|
|
break;
|
|
}
|
|
|
|
if (mute)
|
|
snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
|
|
DVOL_CTL_DVMUTE_ON);
|
|
else
|
|
snd_soc_update_bits(codec, ML26124_DVOL_CTL, BIT(4),
|
|
DVOL_CTL_DVMUTE_OFF);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ml26124_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
|
unsigned int fmt)
|
|
{
|
|
unsigned char mode;
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
|
|
/* set master/slave audio interface */
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
mode = 1;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
mode = 0;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
snd_soc_update_bits(codec, ML26124_SAI_MODE_SEL, BIT(0), mode);
|
|
|
|
/* interface format */
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_I2S:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* clock inversion */
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ml26124_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
|
|
|
|
switch (clk_id) {
|
|
case ML26124_USE_PLLOUT:
|
|
priv->clk_in = ML26124_USE_PLLOUT;
|
|
break;
|
|
case ML26124_USE_MCLKI:
|
|
priv->clk_in = ML26124_USE_MCLKI;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv->mclk = freq;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ml26124_set_bias_level(struct snd_soc_codec *codec,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
|
|
ML26124_R26_MASK, ML26124_BLT_PREAMP_ON);
|
|
msleep(100);
|
|
snd_soc_update_bits(codec, ML26124_PW_SPAMP_PW_MNG,
|
|
ML26124_R26_MASK,
|
|
ML26124_MICBEN_ON | ML26124_BLT_ALL_ON);
|
|
break;
|
|
case SND_SOC_BIAS_PREPARE:
|
|
break;
|
|
case SND_SOC_BIAS_STANDBY:
|
|
/* VMID ON */
|
|
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
|
|
snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
|
|
ML26124_VMID, ML26124_VMID);
|
|
msleep(500);
|
|
regcache_sync(priv->regmap);
|
|
}
|
|
break;
|
|
case SND_SOC_BIAS_OFF:
|
|
/* VMID OFF */
|
|
snd_soc_update_bits(codec, ML26124_PW_REF_PW_MNG,
|
|
ML26124_VMID, 0);
|
|
break;
|
|
}
|
|
codec->dapm.bias_level = level;
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops ml26124_dai_ops = {
|
|
.hw_params = ml26124_hw_params,
|
|
.digital_mute = ml26124_mute,
|
|
.set_fmt = ml26124_set_dai_fmt,
|
|
.set_sysclk = ml26124_set_dai_sysclk,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver ml26124_dai = {
|
|
.name = "ml26124-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = ML26124_RATES,
|
|
.formats = ML26124_FORMATS,},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = ML26124_RATES,
|
|
.formats = ML26124_FORMATS,},
|
|
.ops = &ml26124_dai_ops,
|
|
.symmetric_rates = 1,
|
|
};
|
|
|
|
static int ml26124_probe(struct snd_soc_codec *codec)
|
|
{
|
|
/* Software Reset */
|
|
snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 1);
|
|
snd_soc_update_bits(codec, ML26124_SW_RST, 0x01, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_ml26124 = {
|
|
.probe = ml26124_probe,
|
|
.set_bias_level = ml26124_set_bias_level,
|
|
.suspend_bias_off = true,
|
|
.dapm_widgets = ml26124_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(ml26124_dapm_widgets),
|
|
.dapm_routes = ml26124_intercon,
|
|
.num_dapm_routes = ARRAY_SIZE(ml26124_intercon),
|
|
.controls = ml26124_snd_controls,
|
|
.num_controls = ARRAY_SIZE(ml26124_snd_controls),
|
|
};
|
|
|
|
static const struct regmap_config ml26124_i2c_regmap = {
|
|
.val_bits = 8,
|
|
.reg_bits = 8,
|
|
.max_register = ML26124_NUM_REGISTER,
|
|
.reg_defaults = ml26124_reg,
|
|
.num_reg_defaults = ARRAY_SIZE(ml26124_reg),
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.write_flag_mask = 0x01,
|
|
};
|
|
|
|
static int ml26124_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct ml26124_priv *priv;
|
|
int ret;
|
|
|
|
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, priv);
|
|
|
|
priv->regmap = devm_regmap_init_i2c(i2c, &ml26124_i2c_regmap);
|
|
if (IS_ERR(priv->regmap)) {
|
|
ret = PTR_ERR(priv->regmap);
|
|
dev_err(&i2c->dev, "regmap_init_i2c() failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return snd_soc_register_codec(&i2c->dev,
|
|
&soc_codec_dev_ml26124, &ml26124_dai, 1);
|
|
}
|
|
|
|
static int ml26124_i2c_remove(struct i2c_client *client)
|
|
{
|
|
snd_soc_unregister_codec(&client->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id ml26124_i2c_id[] = {
|
|
{ "ml26124", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, ml26124_i2c_id);
|
|
|
|
static struct i2c_driver ml26124_i2c_driver = {
|
|
.driver = {
|
|
.name = "ml26124",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = ml26124_i2c_probe,
|
|
.remove = ml26124_i2c_remove,
|
|
.id_table = ml26124_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(ml26124_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Tomoya MORINAGA <tomoya.rohm@gmail.com>");
|
|
MODULE_DESCRIPTION("LAPIS Semiconductor ML26124 ALSA SoC codec driver");
|
|
MODULE_LICENSE("GPL");
|