| /* |
| * wm8900.c -- WM8900 ALSA Soc Audio driver |
| * |
| * Copyright 2007, 2008 Wolfson Microelectronics PLC. |
| * |
| * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * TODO: |
| * - Tristating. |
| * - TDM. |
| * - Jack detect. |
| * - FLL source configuration, currently only MCLK is supported. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/pm.h> |
| #include <linux/i2c.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/initval.h> |
| #include <sound/tlv.h> |
| |
| #include "wm8900.h" |
| |
| /* WM8900 register space */ |
| #define WM8900_REG_RESET 0x0 |
| #define WM8900_REG_ID 0x0 |
| #define WM8900_REG_POWER1 0x1 |
| #define WM8900_REG_POWER2 0x2 |
| #define WM8900_REG_POWER3 0x3 |
| #define WM8900_REG_AUDIO1 0x4 |
| #define WM8900_REG_AUDIO2 0x5 |
| #define WM8900_REG_CLOCKING1 0x6 |
| #define WM8900_REG_CLOCKING2 0x7 |
| #define WM8900_REG_AUDIO3 0x8 |
| #define WM8900_REG_AUDIO4 0x9 |
| #define WM8900_REG_DACCTRL 0xa |
| #define WM8900_REG_LDAC_DV 0xb |
| #define WM8900_REG_RDAC_DV 0xc |
| #define WM8900_REG_SIDETONE 0xd |
| #define WM8900_REG_ADCCTRL 0xe |
| #define WM8900_REG_LADC_DV 0xf |
| #define WM8900_REG_RADC_DV 0x10 |
| #define WM8900_REG_GPIO 0x12 |
| #define WM8900_REG_INCTL 0x15 |
| #define WM8900_REG_LINVOL 0x16 |
| #define WM8900_REG_RINVOL 0x17 |
| #define WM8900_REG_INBOOSTMIX1 0x18 |
| #define WM8900_REG_INBOOSTMIX2 0x19 |
| #define WM8900_REG_ADCPATH 0x1a |
| #define WM8900_REG_AUXBOOST 0x1b |
| #define WM8900_REG_ADDCTL 0x1e |
| #define WM8900_REG_FLLCTL1 0x24 |
| #define WM8900_REG_FLLCTL2 0x25 |
| #define WM8900_REG_FLLCTL3 0x26 |
| #define WM8900_REG_FLLCTL4 0x27 |
| #define WM8900_REG_FLLCTL5 0x28 |
| #define WM8900_REG_FLLCTL6 0x29 |
| #define WM8900_REG_LOUTMIXCTL1 0x2c |
| #define WM8900_REG_ROUTMIXCTL1 0x2d |
| #define WM8900_REG_BYPASS1 0x2e |
| #define WM8900_REG_BYPASS2 0x2f |
| #define WM8900_REG_AUXOUT_CTL 0x30 |
| #define WM8900_REG_LOUT1CTL 0x33 |
| #define WM8900_REG_ROUT1CTL 0x34 |
| #define WM8900_REG_LOUT2CTL 0x35 |
| #define WM8900_REG_ROUT2CTL 0x36 |
| #define WM8900_REG_HPCTL1 0x3a |
| #define WM8900_REG_OUTBIASCTL 0x73 |
| |
| #define WM8900_MAXREG 0x80 |
| |
| #define WM8900_REG_ADDCTL_OUT1_DIS 0x80 |
| #define WM8900_REG_ADDCTL_OUT2_DIS 0x40 |
| #define WM8900_REG_ADDCTL_VMID_DIS 0x20 |
| #define WM8900_REG_ADDCTL_BIAS_SRC 0x10 |
| #define WM8900_REG_ADDCTL_VMID_SOFTST 0x04 |
| #define WM8900_REG_ADDCTL_TEMP_SD 0x02 |
| |
| #define WM8900_REG_GPIO_TEMP_ENA 0x2 |
| |
| #define WM8900_REG_POWER1_STARTUP_BIAS_ENA 0x0100 |
| #define WM8900_REG_POWER1_BIAS_ENA 0x0008 |
| #define WM8900_REG_POWER1_VMID_BUF_ENA 0x0004 |
| #define WM8900_REG_POWER1_FLL_ENA 0x0040 |
| |
| #define WM8900_REG_POWER2_SYSCLK_ENA 0x8000 |
| #define WM8900_REG_POWER2_ADCL_ENA 0x0002 |
| #define WM8900_REG_POWER2_ADCR_ENA 0x0001 |
| |
| #define WM8900_REG_POWER3_DACL_ENA 0x0002 |
| #define WM8900_REG_POWER3_DACR_ENA 0x0001 |
| |
| #define WM8900_REG_AUDIO1_AIF_FMT_MASK 0x0018 |
| #define WM8900_REG_AUDIO1_LRCLK_INV 0x0080 |
| #define WM8900_REG_AUDIO1_BCLK_INV 0x0100 |
| |
| #define WM8900_REG_CLOCKING1_BCLK_DIR 0x1 |
| #define WM8900_REG_CLOCKING1_MCLK_SRC 0x100 |
| #define WM8900_REG_CLOCKING1_BCLK_MASK (~0x01e) |
| #define WM8900_REG_CLOCKING1_OPCLK_MASK (~0x7000) |
| |
| #define WM8900_REG_CLOCKING2_ADC_CLKDIV 0xe0 |
| #define WM8900_REG_CLOCKING2_DAC_CLKDIV 0x1c |
| |
| #define WM8900_REG_DACCTRL_MUTE 0x004 |
| #define WM8900_REG_DACCTRL_DAC_SB_FILT 0x100 |
| #define WM8900_REG_DACCTRL_AIF_LRCLKRATE 0x400 |
| |
| #define WM8900_REG_AUDIO3_ADCLRC_DIR 0x0800 |
| |
| #define WM8900_REG_AUDIO4_DACLRC_DIR 0x0800 |
| |
| #define WM8900_REG_FLLCTL1_OSC_ENA 0x100 |
| |
| #define WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF 0x100 |
| |
| #define WM8900_REG_HPCTL1_HP_IPSTAGE_ENA 0x80 |
| #define WM8900_REG_HPCTL1_HP_OPSTAGE_ENA 0x40 |
| #define WM8900_REG_HPCTL1_HP_CLAMP_IP 0x20 |
| #define WM8900_REG_HPCTL1_HP_CLAMP_OP 0x10 |
| #define WM8900_REG_HPCTL1_HP_SHORT 0x08 |
| #define WM8900_REG_HPCTL1_HP_SHORT2 0x04 |
| |
| #define WM8900_LRC_MASK 0xfc00 |
| |
| struct snd_soc_codec_device soc_codec_dev_wm8900; |
| |
| struct wm8900_priv { |
| struct snd_soc_codec codec; |
| |
| u16 reg_cache[WM8900_MAXREG]; |
| |
| u32 fll_in; /* FLL input frequency */ |
| u32 fll_out; /* FLL output frequency */ |
| }; |
| |
| /* |
| * wm8900 register cache. We can't read the entire register space and we |
| * have slow control buses so we cache the registers. |
| */ |
| static const u16 wm8900_reg_defaults[WM8900_MAXREG] = { |
| 0x8900, 0x0000, |
| 0xc000, 0x0000, |
| 0x4050, 0x4000, |
| 0x0008, 0x0000, |
| 0x0040, 0x0040, |
| 0x1004, 0x00c0, |
| 0x00c0, 0x0000, |
| 0x0100, 0x00c0, |
| 0x00c0, 0x0000, |
| 0xb001, 0x0000, |
| 0x0000, 0x0044, |
| 0x004c, 0x004c, |
| 0x0044, 0x0044, |
| 0x0000, 0x0044, |
| 0x0000, 0x0000, |
| 0x0002, 0x0000, |
| 0x0000, 0x0000, |
| 0x0000, 0x0000, |
| 0x0008, 0x0000, |
| 0x0000, 0x0008, |
| 0x0097, 0x0100, |
| 0x0000, 0x0000, |
| 0x0050, 0x0050, |
| 0x0055, 0x0055, |
| 0x0055, 0x0000, |
| 0x0000, 0x0079, |
| 0x0079, 0x0079, |
| 0x0079, 0x0000, |
| /* Remaining registers all zero */ |
| }; |
| |
| static int wm8900_volatile_register(unsigned int reg) |
| { |
| switch (reg) { |
| case WM8900_REG_ID: |
| case WM8900_REG_POWER1: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static void wm8900_reset(struct snd_soc_codec *codec) |
| { |
| snd_soc_write(codec, WM8900_REG_RESET, 0); |
| |
| memcpy(codec->reg_cache, wm8900_reg_defaults, |
| sizeof(wm8900_reg_defaults)); |
| } |
| |
| static int wm8900_hp_event(struct snd_soc_dapm_widget *w, |
| struct snd_kcontrol *kcontrol, int event) |
| { |
| struct snd_soc_codec *codec = w->codec; |
| u16 hpctl1 = snd_soc_read(codec, WM8900_REG_HPCTL1); |
| |
| switch (event) { |
| case SND_SOC_DAPM_PRE_PMU: |
| /* Clamp headphone outputs */ |
| hpctl1 = WM8900_REG_HPCTL1_HP_CLAMP_IP | |
| WM8900_REG_HPCTL1_HP_CLAMP_OP; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| break; |
| |
| case SND_SOC_DAPM_POST_PMU: |
| /* Enable the input stage */ |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_IP; |
| hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT | |
| WM8900_REG_HPCTL1_HP_SHORT2 | |
| WM8900_REG_HPCTL1_HP_IPSTAGE_ENA; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| |
| msleep(400); |
| |
| /* Enable the output stage */ |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_OP; |
| hpctl1 |= WM8900_REG_HPCTL1_HP_OPSTAGE_ENA; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| |
| /* Remove the shorts */ |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT2; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| break; |
| |
| case SND_SOC_DAPM_PRE_PMD: |
| /* Short the output */ |
| hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| |
| /* Disable the output stage */ |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_OPSTAGE_ENA; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| |
| /* Clamp the outputs and power down input */ |
| hpctl1 |= WM8900_REG_HPCTL1_HP_CLAMP_IP | |
| WM8900_REG_HPCTL1_HP_CLAMP_OP; |
| hpctl1 &= ~WM8900_REG_HPCTL1_HP_IPSTAGE_ENA; |
| snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1); |
| break; |
| |
| case SND_SOC_DAPM_POST_PMD: |
| /* Disable everything */ |
| snd_soc_write(codec, WM8900_REG_HPCTL1, 0); |
| break; |
| |
| default: |
| BUG(); |
| } |
| |
| return 0; |
| } |
| |
| static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -5700, 100, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(in_boost_tlv, -1200, 600, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1200, 100, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(dac_tlv, -7200, 75, 1); |
| |
| static const DECLARE_TLV_DB_SCALE(adc_svol_tlv, -3600, 300, 0); |
| |
| static const DECLARE_TLV_DB_SCALE(adc_tlv, -7200, 75, 1); |
| |
| static const char *mic_bias_level_txt[] = { "0.9*AVDD", "0.65*AVDD" }; |
| |
| static const struct soc_enum mic_bias_level = |
| SOC_ENUM_SINGLE(WM8900_REG_INCTL, 8, 2, mic_bias_level_txt); |
| |
| static const char *dac_mute_rate_txt[] = { "Fast", "Slow" }; |
| |
| static const struct soc_enum dac_mute_rate = |
| SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 7, 2, dac_mute_rate_txt); |
| |
| static const char *dac_deemphasis_txt[] = { |
| "Disabled", "32kHz", "44.1kHz", "48kHz" |
| }; |
| |
| static const struct soc_enum dac_deemphasis = |
| SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 4, 4, dac_deemphasis_txt); |
| |
| static const char *adc_hpf_cut_txt[] = { |
| "Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3" |
| }; |
| |
| static const struct soc_enum adc_hpf_cut = |
| SOC_ENUM_SINGLE(WM8900_REG_ADCCTRL, 5, 4, adc_hpf_cut_txt); |
| |
| static const char *lr_txt[] = { |
| "Left", "Right" |
| }; |
| |
| static const struct soc_enum aifl_src = |
| SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 15, 2, lr_txt); |
| |
| static const struct soc_enum aifr_src = |
| SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 14, 2, lr_txt); |
| |
| static const struct soc_enum dacl_src = |
| SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 15, 2, lr_txt); |
| |
| static const struct soc_enum dacr_src = |
| SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 14, 2, lr_txt); |
| |
| static const char *sidetone_txt[] = { |
| "Disabled", "Left ADC", "Right ADC" |
| }; |
| |
| static const struct soc_enum dacl_sidetone = |
| SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 2, 3, sidetone_txt); |
| |
| static const struct soc_enum dacr_sidetone = |
| SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 0, 3, sidetone_txt); |
| |
| static const struct snd_kcontrol_new wm8900_snd_controls[] = { |
| SOC_ENUM("Mic Bias Level", mic_bias_level), |
| |
| SOC_SINGLE_TLV("Left Input PGA Volume", WM8900_REG_LINVOL, 0, 31, 0, |
| in_pga_tlv), |
| SOC_SINGLE("Left Input PGA Switch", WM8900_REG_LINVOL, 6, 1, 1), |
| SOC_SINGLE("Left Input PGA ZC Switch", WM8900_REG_LINVOL, 7, 1, 0), |
| |
| SOC_SINGLE_TLV("Right Input PGA Volume", WM8900_REG_RINVOL, 0, 31, 0, |
| in_pga_tlv), |
| SOC_SINGLE("Right Input PGA Switch", WM8900_REG_RINVOL, 6, 1, 1), |
| SOC_SINGLE("Right Input PGA ZC Switch", WM8900_REG_RINVOL, 7, 1, 0), |
| |
| SOC_SINGLE("DAC Soft Mute Switch", WM8900_REG_DACCTRL, 6, 1, 1), |
| SOC_ENUM("DAC Mute Rate", dac_mute_rate), |
| SOC_SINGLE("DAC Mono Switch", WM8900_REG_DACCTRL, 9, 1, 0), |
| SOC_ENUM("DAC Deemphasis", dac_deemphasis), |
| SOC_SINGLE("DAC Sigma-Delta Modulator Clock Switch", WM8900_REG_DACCTRL, |
| 12, 1, 0), |
| |
| SOC_SINGLE("ADC HPF Switch", WM8900_REG_ADCCTRL, 8, 1, 0), |
| SOC_ENUM("ADC HPF Cut-Off", adc_hpf_cut), |
| SOC_DOUBLE("ADC Invert Switch", WM8900_REG_ADCCTRL, 1, 0, 1, 0), |
| SOC_SINGLE_TLV("Left ADC Sidetone Volume", WM8900_REG_SIDETONE, 9, 12, 0, |
| adc_svol_tlv), |
| SOC_SINGLE_TLV("Right ADC Sidetone Volume", WM8900_REG_SIDETONE, 5, 12, 0, |
| adc_svol_tlv), |
| SOC_ENUM("Left Digital Audio Source", aifl_src), |
| SOC_ENUM("Right Digital Audio Source", aifr_src), |
| |
| SOC_SINGLE_TLV("DAC Input Boost Volume", WM8900_REG_AUDIO2, 10, 4, 0, |
| dac_boost_tlv), |
| SOC_ENUM("Left DAC Source", dacl_src), |
| SOC_ENUM("Right DAC Source", dacr_src), |
| SOC_ENUM("Left DAC Sidetone", dacl_sidetone), |
| SOC_ENUM("Right DAC Sidetone", dacr_sidetone), |
| SOC_DOUBLE("DAC Invert Switch", WM8900_REG_DACCTRL, 1, 0, 1, 0), |
| |
| SOC_DOUBLE_R_TLV("Digital Playback Volume", |
| WM8900_REG_LDAC_DV, WM8900_REG_RDAC_DV, |
| 1, 96, 0, dac_tlv), |
| SOC_DOUBLE_R_TLV("Digital Capture Volume", |
| WM8900_REG_LADC_DV, WM8900_REG_RADC_DV, 1, 119, 0, adc_tlv), |
| |
| SOC_SINGLE_TLV("LINPUT3 Bypass Volume", WM8900_REG_LOUTMIXCTL1, 4, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("RINPUT3 Bypass Volume", WM8900_REG_ROUTMIXCTL1, 4, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("Left AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 4, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("Right AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 0, 7, 0, |
| out_mix_tlv), |
| |
| SOC_SINGLE_TLV("LeftIn to RightOut Mixer Volume", WM8900_REG_BYPASS1, 0, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("LeftIn to LeftOut Mixer Volume", WM8900_REG_BYPASS1, 4, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("RightIn to LeftOut Mixer Volume", WM8900_REG_BYPASS2, 0, 7, 0, |
| out_mix_tlv), |
| SOC_SINGLE_TLV("RightIn to RightOut Mixer Volume", WM8900_REG_BYPASS2, 4, 7, 0, |
| out_mix_tlv), |
| |
| SOC_SINGLE_TLV("IN2L Boost Volume", WM8900_REG_INBOOSTMIX1, 0, 3, 0, |
| in_boost_tlv), |
| SOC_SINGLE_TLV("IN3L Boost Volume", WM8900_REG_INBOOSTMIX1, 4, 3, 0, |
| in_boost_tlv), |
| SOC_SINGLE_TLV("IN2R Boost Volume", WM8900_REG_INBOOSTMIX2, 0, 3, 0, |
| in_boost_tlv), |
| SOC_SINGLE_TLV("IN3R Boost Volume", WM8900_REG_INBOOSTMIX2, 4, 3, 0, |
| in_boost_tlv), |
| SOC_SINGLE_TLV("Left AUX Boost Volume", WM8900_REG_AUXBOOST, 4, 3, 0, |
| in_boost_tlv), |
| SOC_SINGLE_TLV("Right AUX Boost Volume", WM8900_REG_AUXBOOST, 0, 3, 0, |
| in_boost_tlv), |
| |
| SOC_DOUBLE_R_TLV("LINEOUT1 Volume", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL, |
| 0, 63, 0, out_pga_tlv), |
| SOC_DOUBLE_R("LINEOUT1 Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL, |
| 6, 1, 1), |
| SOC_DOUBLE_R("LINEOUT1 ZC Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL, |
| 7, 1, 0), |
| |
| SOC_DOUBLE_R_TLV("LINEOUT2 Volume", |
| WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, |
| 0, 63, 0, out_pga_tlv), |
| SOC_DOUBLE_R("LINEOUT2 Switch", |
| WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 6, 1, 1), |
| SOC_DOUBLE_R("LINEOUT2 ZC Switch", |
| WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 7, 1, 0), |
| SOC_SINGLE("LINEOUT2 LP -12dB", WM8900_REG_LOUTMIXCTL1, |
| 0, 1, 1), |
| |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_dapm_loutput2_control = |
| SOC_DAPM_SINGLE("LINEOUT2L Switch", WM8900_REG_POWER3, 6, 1, 0); |
| |
| static const struct snd_kcontrol_new wm8900_dapm_routput2_control = |
| SOC_DAPM_SINGLE("LINEOUT2R Switch", WM8900_REG_POWER3, 5, 1, 0); |
| |
| static const struct snd_kcontrol_new wm8900_loutmix_controls[] = { |
| SOC_DAPM_SINGLE("LINPUT3 Bypass Switch", WM8900_REG_LOUTMIXCTL1, 7, 1, 0), |
| SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 7, 1, 0), |
| SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 7, 1, 0), |
| SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 3, 1, 0), |
| SOC_DAPM_SINGLE("DACL Switch", WM8900_REG_LOUTMIXCTL1, 8, 1, 0), |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_routmix_controls[] = { |
| SOC_DAPM_SINGLE("RINPUT3 Bypass Switch", WM8900_REG_ROUTMIXCTL1, 7, 1, 0), |
| SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 3, 1, 0), |
| SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 3, 1, 0), |
| SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 7, 1, 0), |
| SOC_DAPM_SINGLE("DACR Switch", WM8900_REG_ROUTMIXCTL1, 8, 1, 0), |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_linmix_controls[] = { |
| SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INBOOSTMIX1, 2, 1, 1), |
| SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INBOOSTMIX1, 6, 1, 1), |
| SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 6, 1, 1), |
| SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 6, 1, 0), |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_rinmix_controls[] = { |
| SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INBOOSTMIX2, 2, 1, 1), |
| SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INBOOSTMIX2, 6, 1, 1), |
| SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 2, 1, 1), |
| SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 2, 1, 0), |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_linpga_controls[] = { |
| SOC_DAPM_SINGLE("LINPUT1 Switch", WM8900_REG_INCTL, 6, 1, 0), |
| SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INCTL, 5, 1, 0), |
| SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INCTL, 4, 1, 0), |
| }; |
| |
| static const struct snd_kcontrol_new wm8900_rinpga_controls[] = { |
| SOC_DAPM_SINGLE("RINPUT1 Switch", WM8900_REG_INCTL, 2, 1, 0), |
| SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INCTL, 1, 1, 0), |
| SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INCTL, 0, 1, 0), |
| }; |
| |
| static const char *wm9700_lp_mux[] = { "Disabled", "Enabled" }; |
| |
| static const struct soc_enum wm8900_lineout2_lp_mux = |
| SOC_ENUM_SINGLE(WM8900_REG_LOUTMIXCTL1, 1, 2, wm9700_lp_mux); |
| |
| static const struct snd_kcontrol_new wm8900_lineout2_lp = |
| SOC_DAPM_ENUM("Route", wm8900_lineout2_lp_mux); |
| |
| static const struct snd_soc_dapm_widget wm8900_dapm_widgets[] = { |
| |
| /* Externally visible pins */ |
| SND_SOC_DAPM_OUTPUT("LINEOUT1L"), |
| SND_SOC_DAPM_OUTPUT("LINEOUT1R"), |
| SND_SOC_DAPM_OUTPUT("LINEOUT2L"), |
| SND_SOC_DAPM_OUTPUT("LINEOUT2R"), |
| SND_SOC_DAPM_OUTPUT("HP_L"), |
| SND_SOC_DAPM_OUTPUT("HP_R"), |
| |
| SND_SOC_DAPM_INPUT("RINPUT1"), |
| SND_SOC_DAPM_INPUT("LINPUT1"), |
| SND_SOC_DAPM_INPUT("RINPUT2"), |
| SND_SOC_DAPM_INPUT("LINPUT2"), |
| SND_SOC_DAPM_INPUT("RINPUT3"), |
| SND_SOC_DAPM_INPUT("LINPUT3"), |
| SND_SOC_DAPM_INPUT("AUX"), |
| |
| SND_SOC_DAPM_VMID("VMID"), |
| |
| /* Input */ |
| SND_SOC_DAPM_MIXER("Left Input PGA", WM8900_REG_POWER2, 3, 0, |
| wm8900_linpga_controls, |
| ARRAY_SIZE(wm8900_linpga_controls)), |
| SND_SOC_DAPM_MIXER("Right Input PGA", WM8900_REG_POWER2, 2, 0, |
| wm8900_rinpga_controls, |
| ARRAY_SIZE(wm8900_rinpga_controls)), |
| |
| SND_SOC_DAPM_MIXER("Left Input Mixer", WM8900_REG_POWER2, 5, 0, |
| wm8900_linmix_controls, |
| ARRAY_SIZE(wm8900_linmix_controls)), |
| SND_SOC_DAPM_MIXER("Right Input Mixer", WM8900_REG_POWER2, 4, 0, |
| wm8900_rinmix_controls, |
| ARRAY_SIZE(wm8900_rinmix_controls)), |
| |
| SND_SOC_DAPM_MICBIAS("Mic Bias", WM8900_REG_POWER1, 4, 0), |
| |
| SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8900_REG_POWER2, 1, 0), |
| SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8900_REG_POWER2, 0, 0), |
| |
| /* Output */ |
| SND_SOC_DAPM_DAC("DACL", "Left HiFi Playback", WM8900_REG_POWER3, 1, 0), |
| SND_SOC_DAPM_DAC("DACR", "Right HiFi Playback", WM8900_REG_POWER3, 0, 0), |
| |
| SND_SOC_DAPM_PGA_E("Headphone Amplifier", WM8900_REG_POWER3, 7, 0, NULL, 0, |
| wm8900_hp_event, |
| SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | |
| SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), |
| |
| SND_SOC_DAPM_PGA("LINEOUT1L PGA", WM8900_REG_POWER2, 8, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("LINEOUT1R PGA", WM8900_REG_POWER2, 7, 0, NULL, 0), |
| |
| SND_SOC_DAPM_MUX("LINEOUT2 LP", SND_SOC_NOPM, 0, 0, &wm8900_lineout2_lp), |
| SND_SOC_DAPM_PGA("LINEOUT2L PGA", WM8900_REG_POWER3, 6, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("LINEOUT2R PGA", WM8900_REG_POWER3, 5, 0, NULL, 0), |
| |
| SND_SOC_DAPM_MIXER("Left Output Mixer", WM8900_REG_POWER3, 3, 0, |
| wm8900_loutmix_controls, |
| ARRAY_SIZE(wm8900_loutmix_controls)), |
| SND_SOC_DAPM_MIXER("Right Output Mixer", WM8900_REG_POWER3, 2, 0, |
| wm8900_routmix_controls, |
| ARRAY_SIZE(wm8900_routmix_controls)), |
| }; |
| |
| /* Target, Path, Source */ |
| static const struct snd_soc_dapm_route audio_map[] = { |
| /* Inputs */ |
| {"Left Input PGA", "LINPUT1 Switch", "LINPUT1"}, |
| {"Left Input PGA", "LINPUT2 Switch", "LINPUT2"}, |
| {"Left Input PGA", "LINPUT3 Switch", "LINPUT3"}, |
| |
| {"Right Input PGA", "RINPUT1 Switch", "RINPUT1"}, |
| {"Right Input PGA", "RINPUT2 Switch", "RINPUT2"}, |
| {"Right Input PGA", "RINPUT3 Switch", "RINPUT3"}, |
| |
| {"Left Input Mixer", "LINPUT2 Switch", "LINPUT2"}, |
| {"Left Input Mixer", "LINPUT3 Switch", "LINPUT3"}, |
| {"Left Input Mixer", "AUX Switch", "AUX"}, |
| {"Left Input Mixer", "Input PGA Switch", "Left Input PGA"}, |
| |
| {"Right Input Mixer", "RINPUT2 Switch", "RINPUT2"}, |
| {"Right Input Mixer", "RINPUT3 Switch", "RINPUT3"}, |
| {"Right Input Mixer", "AUX Switch", "AUX"}, |
| {"Right Input Mixer", "Input PGA Switch", "Right Input PGA"}, |
| |
| {"ADCL", NULL, "Left Input Mixer"}, |
| {"ADCR", NULL, "Right Input Mixer"}, |
| |
| /* Outputs */ |
| {"LINEOUT1L", NULL, "LINEOUT1L PGA"}, |
| {"LINEOUT1L PGA", NULL, "Left Output Mixer"}, |
| {"LINEOUT1R", NULL, "LINEOUT1R PGA"}, |
| {"LINEOUT1R PGA", NULL, "Right Output Mixer"}, |
| |
| {"LINEOUT2L PGA", NULL, "Left Output Mixer"}, |
| {"LINEOUT2 LP", "Disabled", "LINEOUT2L PGA"}, |
| {"LINEOUT2 LP", "Enabled", "Left Output Mixer"}, |
| {"LINEOUT2L", NULL, "LINEOUT2 LP"}, |
| |
| {"LINEOUT2R PGA", NULL, "Right Output Mixer"}, |
| {"LINEOUT2 LP", "Disabled", "LINEOUT2R PGA"}, |
| {"LINEOUT2 LP", "Enabled", "Right Output Mixer"}, |
| {"LINEOUT2R", NULL, "LINEOUT2 LP"}, |
| |
| {"Left Output Mixer", "LINPUT3 Bypass Switch", "LINPUT3"}, |
| {"Left Output Mixer", "AUX Bypass Switch", "AUX"}, |
| {"Left Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"}, |
| {"Left Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"}, |
| {"Left Output Mixer", "DACL Switch", "DACL"}, |
| |
| {"Right Output Mixer", "RINPUT3 Bypass Switch", "RINPUT3"}, |
| {"Right Output Mixer", "AUX Bypass Switch", "AUX"}, |
| {"Right Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"}, |
| {"Right Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"}, |
| {"Right Output Mixer", "DACR Switch", "DACR"}, |
| |
| /* Note that the headphone output stage needs to be connected |
| * externally to LINEOUT2 via DC blocking capacitors. Other |
| * configurations are not supported. |
| * |
| * Note also that left and right headphone paths are treated as a |
| * mono path. |
| */ |
| {"Headphone Amplifier", NULL, "LINEOUT2 LP"}, |
| {"Headphone Amplifier", NULL, "LINEOUT2 LP"}, |
| {"HP_L", NULL, "Headphone Amplifier"}, |
| {"HP_R", NULL, "Headphone Amplifier"}, |
| }; |
| |
| static int wm8900_add_widgets(struct snd_soc_codec *codec) |
| { |
| snd_soc_dapm_new_controls(codec, wm8900_dapm_widgets, |
| ARRAY_SIZE(wm8900_dapm_widgets)); |
| |
| snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
| |
| return 0; |
| } |
| |
| static int wm8900_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params, |
| struct snd_soc_dai *dai) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_device *socdev = rtd->socdev; |
| struct snd_soc_codec *codec = socdev->card->codec; |
| u16 reg; |
| |
| reg = snd_soc_read(codec, WM8900_REG_AUDIO1) & ~0x60; |
| |
| switch (params_format(params)) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| break; |
| case SNDRV_PCM_FORMAT_S20_3LE: |
| reg |= 0x20; |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| reg |= 0x40; |
| break; |
| case SNDRV_PCM_FORMAT_S32_LE: |
| reg |= 0x60; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_write(codec, WM8900_REG_AUDIO1, reg); |
| |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| reg = snd_soc_read(codec, WM8900_REG_DACCTRL); |
| |
| if (params_rate(params) <= 24000) |
| reg |= WM8900_REG_DACCTRL_DAC_SB_FILT; |
| else |
| reg &= ~WM8900_REG_DACCTRL_DAC_SB_FILT; |
| |
| snd_soc_write(codec, WM8900_REG_DACCTRL, reg); |
| } |
| |
| return 0; |
| } |
| |
| /* FLL divisors */ |
| struct _fll_div { |
| u16 fll_ratio; |
| u16 fllclk_div; |
| u16 fll_slow_lock_ref; |
| u16 n; |
| u16 k; |
| }; |
| |
| /* The size in bits of the FLL divide multiplied by 10 |
| * to allow rounding later */ |
| #define FIXED_FLL_SIZE ((1 << 16) * 10) |
| |
| static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, |
| unsigned int Fout) |
| { |
| u64 Kpart; |
| unsigned int K, Ndiv, Nmod, target; |
| unsigned int div; |
| |
| BUG_ON(!Fout); |
| |
| /* The FLL must run at 90-100MHz which is then scaled down to |
| * the output value by FLLCLK_DIV. */ |
| target = Fout; |
| div = 1; |
| while (target < 90000000) { |
| div *= 2; |
| target *= 2; |
| } |
| |
| if (target > 100000000) |
| printk(KERN_WARNING "wm8900: FLL rate %u out of range, Fref=%u" |
| " Fout=%u\n", target, Fref, Fout); |
| if (div > 32) { |
| printk(KERN_ERR "wm8900: Invalid FLL division rate %u, " |
| "Fref=%u, Fout=%u, target=%u\n", |
| div, Fref, Fout, target); |
| return -EINVAL; |
| } |
| |
| fll_div->fllclk_div = div >> 2; |
| |
| if (Fref < 48000) |
| fll_div->fll_slow_lock_ref = 1; |
| else |
| fll_div->fll_slow_lock_ref = 0; |
| |
| Ndiv = target / Fref; |
| |
| if (Fref < 1000000) |
| fll_div->fll_ratio = 8; |
| else |
| fll_div->fll_ratio = 1; |
| |
| fll_div->n = Ndiv / fll_div->fll_ratio; |
| Nmod = (target / fll_div->fll_ratio) % Fref; |
| |
| /* Calculate fractional part - scale up so we can round. */ |
| Kpart = FIXED_FLL_SIZE * (long long)Nmod; |
| |
| do_div(Kpart, Fref); |
| |
| K = Kpart & 0xFFFFFFFF; |
| |
| if ((K % 10) >= 5) |
| K += 5; |
| |
| /* Move down to proper range now rounding is done */ |
| fll_div->k = K / 10; |
| |
| BUG_ON(target != Fout * (fll_div->fllclk_div << 2)); |
| BUG_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n); |
| |
| return 0; |
| } |
| |
| static int wm8900_set_fll(struct snd_soc_codec *codec, |
| int fll_id, unsigned int freq_in, unsigned int freq_out) |
| { |
| struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec); |
| struct _fll_div fll_div; |
| unsigned int reg; |
| |
| if (wm8900->fll_in == freq_in && wm8900->fll_out == freq_out) |
| return 0; |
| |
| /* The digital side should be disabled during any change. */ |
| reg = snd_soc_read(codec, WM8900_REG_POWER1); |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| reg & (~WM8900_REG_POWER1_FLL_ENA)); |
| |
| /* Disable the FLL? */ |
| if (!freq_in || !freq_out) { |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING1); |
| snd_soc_write(codec, WM8900_REG_CLOCKING1, |
| reg & (~WM8900_REG_CLOCKING1_MCLK_SRC)); |
| |
| reg = snd_soc_read(codec, WM8900_REG_FLLCTL1); |
| snd_soc_write(codec, WM8900_REG_FLLCTL1, |
| reg & (~WM8900_REG_FLLCTL1_OSC_ENA)); |
| |
| wm8900->fll_in = freq_in; |
| wm8900->fll_out = freq_out; |
| |
| return 0; |
| } |
| |
| if (fll_factors(&fll_div, freq_in, freq_out) != 0) |
| goto reenable; |
| |
| wm8900->fll_in = freq_in; |
| wm8900->fll_out = freq_out; |
| |
| /* The osclilator *MUST* be enabled before we enable the |
| * digital circuit. */ |
| snd_soc_write(codec, WM8900_REG_FLLCTL1, |
| fll_div.fll_ratio | WM8900_REG_FLLCTL1_OSC_ENA); |
| |
| snd_soc_write(codec, WM8900_REG_FLLCTL4, fll_div.n >> 5); |
| snd_soc_write(codec, WM8900_REG_FLLCTL5, |
| (fll_div.fllclk_div << 6) | (fll_div.n & 0x1f)); |
| |
| if (fll_div.k) { |
| snd_soc_write(codec, WM8900_REG_FLLCTL2, |
| (fll_div.k >> 8) | 0x100); |
| snd_soc_write(codec, WM8900_REG_FLLCTL3, fll_div.k & 0xff); |
| } else |
| snd_soc_write(codec, WM8900_REG_FLLCTL2, 0); |
| |
| if (fll_div.fll_slow_lock_ref) |
| snd_soc_write(codec, WM8900_REG_FLLCTL6, |
| WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF); |
| else |
| snd_soc_write(codec, WM8900_REG_FLLCTL6, 0); |
| |
| reg = snd_soc_read(codec, WM8900_REG_POWER1); |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| reg | WM8900_REG_POWER1_FLL_ENA); |
| |
| reenable: |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING1); |
| snd_soc_write(codec, WM8900_REG_CLOCKING1, |
| reg | WM8900_REG_CLOCKING1_MCLK_SRC); |
| |
| return 0; |
| } |
| |
| static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, |
| int source, unsigned int freq_in, unsigned int freq_out) |
| { |
| return wm8900_set_fll(codec_dai->codec, pll_id, freq_in, freq_out); |
| } |
| |
| static int wm8900_set_dai_clkdiv(struct snd_soc_dai *codec_dai, |
| int div_id, int div) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| unsigned int reg; |
| |
| switch (div_id) { |
| case WM8900_BCLK_DIV: |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING1); |
| snd_soc_write(codec, WM8900_REG_CLOCKING1, |
| div | (reg & WM8900_REG_CLOCKING1_BCLK_MASK)); |
| break; |
| case WM8900_OPCLK_DIV: |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING1); |
| snd_soc_write(codec, WM8900_REG_CLOCKING1, |
| div | (reg & WM8900_REG_CLOCKING1_OPCLK_MASK)); |
| break; |
| case WM8900_DAC_LRCLK: |
| reg = snd_soc_read(codec, WM8900_REG_AUDIO4); |
| snd_soc_write(codec, WM8900_REG_AUDIO4, |
| div | (reg & WM8900_LRC_MASK)); |
| break; |
| case WM8900_ADC_LRCLK: |
| reg = snd_soc_read(codec, WM8900_REG_AUDIO3); |
| snd_soc_write(codec, WM8900_REG_AUDIO3, |
| div | (reg & WM8900_LRC_MASK)); |
| break; |
| case WM8900_DAC_CLKDIV: |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING2); |
| snd_soc_write(codec, WM8900_REG_CLOCKING2, |
| div | (reg & WM8900_REG_CLOCKING2_DAC_CLKDIV)); |
| break; |
| case WM8900_ADC_CLKDIV: |
| reg = snd_soc_read(codec, WM8900_REG_CLOCKING2); |
| snd_soc_write(codec, WM8900_REG_CLOCKING2, |
| div | (reg & WM8900_REG_CLOCKING2_ADC_CLKDIV)); |
| break; |
| case WM8900_LRCLK_MODE: |
| reg = snd_soc_read(codec, WM8900_REG_DACCTRL); |
| snd_soc_write(codec, WM8900_REG_DACCTRL, |
| div | (reg & WM8900_REG_DACCTRL_AIF_LRCLKRATE)); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| unsigned int clocking1, aif1, aif3, aif4; |
| |
| clocking1 = snd_soc_read(codec, WM8900_REG_CLOCKING1); |
| aif1 = snd_soc_read(codec, WM8900_REG_AUDIO1); |
| aif3 = snd_soc_read(codec, WM8900_REG_AUDIO3); |
| aif4 = snd_soc_read(codec, WM8900_REG_AUDIO4); |
| |
| /* set master/slave audio interface */ |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBS_CFS: |
| clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR; |
| aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR; |
| aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR; |
| break; |
| case SND_SOC_DAIFMT_CBS_CFM: |
| clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR; |
| aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR; |
| aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR; |
| break; |
| case SND_SOC_DAIFMT_CBM_CFM: |
| clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR; |
| aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR; |
| aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR; |
| break; |
| case SND_SOC_DAIFMT_CBM_CFS: |
| clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR; |
| aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR; |
| aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_DSP_A: |
| aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK; |
| aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK; |
| aif1 |= WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_I2S: |
| aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK; |
| aif1 |= 0x10; |
| break; |
| case SND_SOC_DAIFMT_RIGHT_J: |
| aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK; |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK; |
| aif1 |= 0x8; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* Clock inversion */ |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_DSP_A: |
| case SND_SOC_DAIFMT_DSP_B: |
| /* frame inversion not valid for DSP modes */ |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| aif1 |= WM8900_REG_AUDIO1_BCLK_INV; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case SND_SOC_DAIFMT_I2S: |
| case SND_SOC_DAIFMT_RIGHT_J: |
| case SND_SOC_DAIFMT_LEFT_J: |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV; |
| aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_IB_IF: |
| aif1 |= WM8900_REG_AUDIO1_BCLK_INV; |
| aif1 |= WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| aif1 |= WM8900_REG_AUDIO1_BCLK_INV; |
| aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| case SND_SOC_DAIFMT_NB_IF: |
| aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV; |
| aif1 |= WM8900_REG_AUDIO1_LRCLK_INV; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_write(codec, WM8900_REG_CLOCKING1, clocking1); |
| snd_soc_write(codec, WM8900_REG_AUDIO1, aif1); |
| snd_soc_write(codec, WM8900_REG_AUDIO3, aif3); |
| snd_soc_write(codec, WM8900_REG_AUDIO4, aif4); |
| |
| return 0; |
| } |
| |
| static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 reg; |
| |
| reg = snd_soc_read(codec, WM8900_REG_DACCTRL); |
| |
| if (mute) |
| reg |= WM8900_REG_DACCTRL_MUTE; |
| else |
| reg &= ~WM8900_REG_DACCTRL_MUTE; |
| |
| snd_soc_write(codec, WM8900_REG_DACCTRL, reg); |
| |
| return 0; |
| } |
| |
| #define WM8900_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
| SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ |
| SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) |
| |
| #define WM8900_PCM_FORMATS \ |
| (SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \ |
| SNDRV_PCM_FORMAT_S24_LE) |
| |
| static struct snd_soc_dai_ops wm8900_dai_ops = { |
| .hw_params = wm8900_hw_params, |
| .set_clkdiv = wm8900_set_dai_clkdiv, |
| .set_pll = wm8900_set_dai_pll, |
| .set_fmt = wm8900_set_dai_fmt, |
| .digital_mute = wm8900_digital_mute, |
| }; |
| |
| struct snd_soc_dai wm8900_dai = { |
| .name = "WM8900 HiFi", |
| .playback = { |
| .stream_name = "HiFi Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8900_RATES, |
| .formats = WM8900_PCM_FORMATS, |
| }, |
| .capture = { |
| .stream_name = "HiFi Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8900_RATES, |
| .formats = WM8900_PCM_FORMATS, |
| }, |
| .ops = &wm8900_dai_ops, |
| }; |
| EXPORT_SYMBOL_GPL(wm8900_dai); |
| |
| static int wm8900_set_bias_level(struct snd_soc_codec *codec, |
| enum snd_soc_bias_level level) |
| { |
| u16 reg; |
| |
| switch (level) { |
| case SND_SOC_BIAS_ON: |
| /* Enable thermal shutdown */ |
| reg = snd_soc_read(codec, WM8900_REG_GPIO); |
| snd_soc_write(codec, WM8900_REG_GPIO, |
| reg | WM8900_REG_GPIO_TEMP_ENA); |
| reg = snd_soc_read(codec, WM8900_REG_ADDCTL); |
| snd_soc_write(codec, WM8900_REG_ADDCTL, |
| reg | WM8900_REG_ADDCTL_TEMP_SD); |
| break; |
| |
| case SND_SOC_BIAS_PREPARE: |
| break; |
| |
| case SND_SOC_BIAS_STANDBY: |
| /* Charge capacitors if initial power up */ |
| if (codec->bias_level == SND_SOC_BIAS_OFF) { |
| /* STARTUP_BIAS_ENA on */ |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| WM8900_REG_POWER1_STARTUP_BIAS_ENA); |
| |
| /* Startup bias mode */ |
| snd_soc_write(codec, WM8900_REG_ADDCTL, |
| WM8900_REG_ADDCTL_BIAS_SRC | |
| WM8900_REG_ADDCTL_VMID_SOFTST); |
| |
| /* VMID 2x50k */ |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| WM8900_REG_POWER1_STARTUP_BIAS_ENA | 0x1); |
| |
| /* Allow capacitors to charge */ |
| schedule_timeout_interruptible(msecs_to_jiffies(400)); |
| |
| /* Enable bias */ |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| WM8900_REG_POWER1_STARTUP_BIAS_ENA | |
| WM8900_REG_POWER1_BIAS_ENA | 0x1); |
| |
| snd_soc_write(codec, WM8900_REG_ADDCTL, 0); |
| |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| WM8900_REG_POWER1_BIAS_ENA | 0x1); |
| } |
| |
| reg = snd_soc_read(codec, WM8900_REG_POWER1); |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| (reg & WM8900_REG_POWER1_FLL_ENA) | |
| WM8900_REG_POWER1_BIAS_ENA | 0x1); |
| snd_soc_write(codec, WM8900_REG_POWER2, |
| WM8900_REG_POWER2_SYSCLK_ENA); |
| snd_soc_write(codec, WM8900_REG_POWER3, 0); |
| break; |
| |
| case SND_SOC_BIAS_OFF: |
| /* Startup bias enable */ |
| reg = snd_soc_read(codec, WM8900_REG_POWER1); |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| reg & WM8900_REG_POWER1_STARTUP_BIAS_ENA); |
| snd_soc_write(codec, WM8900_REG_ADDCTL, |
| WM8900_REG_ADDCTL_BIAS_SRC | |
| WM8900_REG_ADDCTL_VMID_SOFTST); |
| |
| /* Discharge caps */ |
| snd_soc_write(codec, WM8900_REG_POWER1, |
| WM8900_REG_POWER1_STARTUP_BIAS_ENA); |
| schedule_timeout_interruptible(msecs_to_jiffies(500)); |
| |
| /* Remove clamp */ |
| snd_soc_write(codec, WM8900_REG_HPCTL1, 0); |
| |
| /* Power down */ |
| snd_soc_write(codec, WM8900_REG_ADDCTL, 0); |
| snd_soc_write(codec, WM8900_REG_POWER1, 0); |
| snd_soc_write(codec, WM8900_REG_POWER2, 0); |
| snd_soc_write(codec, WM8900_REG_POWER3, 0); |
| |
| /* Need to let things settle before stopping the clock |
| * to ensure that restart works, see "Stopping the |
| * master clock" in the datasheet. */ |
| schedule_timeout_interruptible(msecs_to_jiffies(1)); |
| snd_soc_write(codec, WM8900_REG_POWER2, |
| WM8900_REG_POWER2_SYSCLK_ENA); |
| break; |
| } |
| codec->bias_level = level; |
| return 0; |
| } |
| |
| static int wm8900_suspend(struct platform_device *pdev, pm_message_t state) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| struct snd_soc_codec *codec = socdev->card->codec; |
| struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec); |
| int fll_out = wm8900->fll_out; |
| int fll_in = wm8900->fll_in; |
| int ret; |
| |
| /* Stop the FLL in an orderly fashion */ |
| ret = wm8900_set_fll(codec, 0, 0, 0); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to stop FLL\n"); |
| return ret; |
| } |
| |
| wm8900->fll_out = fll_out; |
| wm8900->fll_in = fll_in; |
| |
| wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| |
| return 0; |
| } |
| |
| static int wm8900_resume(struct platform_device *pdev) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| struct snd_soc_codec *codec = socdev->card->codec; |
| struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec); |
| u16 *cache; |
| int i, ret; |
| |
| cache = kmemdup(codec->reg_cache, sizeof(wm8900_reg_defaults), |
| GFP_KERNEL); |
| |
| wm8900_reset(codec); |
| wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| |
| /* Restart the FLL? */ |
| if (wm8900->fll_out) { |
| int fll_out = wm8900->fll_out; |
| int fll_in = wm8900->fll_in; |
| |
| wm8900->fll_in = 0; |
| wm8900->fll_out = 0; |
| |
| ret = wm8900_set_fll(codec, 0, fll_in, fll_out); |
| if (ret != 0) { |
| dev_err(&pdev->dev, "Failed to restart FLL\n"); |
| return ret; |
| } |
| } |
| |
| if (cache) { |
| for (i = 0; i < WM8900_MAXREG; i++) |
| snd_soc_write(codec, i, cache[i]); |
| kfree(cache); |
| } else |
| dev_err(&pdev->dev, "Unable to allocate register cache\n"); |
| |
| return 0; |
| } |
| |
| static struct snd_soc_codec *wm8900_codec; |
| |
| static __devinit int wm8900_i2c_probe(struct i2c_client *i2c, |
| const struct i2c_device_id *id) |
| { |
| struct wm8900_priv *wm8900; |
| struct snd_soc_codec *codec; |
| unsigned int reg; |
| int ret; |
| |
| wm8900 = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL); |
| if (wm8900 == NULL) |
| return -ENOMEM; |
| |
| codec = &wm8900->codec; |
| snd_soc_codec_set_drvdata(codec, wm8900); |
| codec->reg_cache = &wm8900->reg_cache[0]; |
| codec->reg_cache_size = WM8900_MAXREG; |
| |
| mutex_init(&codec->mutex); |
| INIT_LIST_HEAD(&codec->dapm_widgets); |
| INIT_LIST_HEAD(&codec->dapm_paths); |
| |
| codec->name = "WM8900"; |
| codec->owner = THIS_MODULE; |
| codec->dai = &wm8900_dai; |
| codec->num_dai = 1; |
| codec->control_data = i2c; |
| codec->set_bias_level = wm8900_set_bias_level; |
| codec->volatile_register = wm8900_volatile_register; |
| codec->dev = &i2c->dev; |
| |
| ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); |
| if (ret != 0) { |
| dev_err(&i2c->dev, "Failed to set cache I/O: %d\n", ret); |
| goto err; |
| } |
| |
| reg = snd_soc_read(codec, WM8900_REG_ID); |
| if (reg != 0x8900) { |
| dev_err(&i2c->dev, "Device is not a WM8900 - ID %x\n", reg); |
| ret = -ENODEV; |
| goto err; |
| } |
| |
| /* Read back from the chip */ |
| reg = snd_soc_read(codec, WM8900_REG_POWER1); |
| reg = (reg >> 12) & 0xf; |
| dev_info(&i2c->dev, "WM8900 revision %d\n", reg); |
| |
| wm8900_reset(codec); |
| |
| /* Turn the chip on */ |
| wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| |
| /* Latch the volume update bits */ |
| snd_soc_write(codec, WM8900_REG_LINVOL, |
| snd_soc_read(codec, WM8900_REG_LINVOL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_RINVOL, |
| snd_soc_read(codec, WM8900_REG_RINVOL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_LOUT1CTL, |
| snd_soc_read(codec, WM8900_REG_LOUT1CTL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_ROUT1CTL, |
| snd_soc_read(codec, WM8900_REG_ROUT1CTL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_LOUT2CTL, |
| snd_soc_read(codec, WM8900_REG_LOUT2CTL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_ROUT2CTL, |
| snd_soc_read(codec, WM8900_REG_ROUT2CTL) | 0x100); |
| snd_soc_write(codec, WM8900_REG_LDAC_DV, |
| snd_soc_read(codec, WM8900_REG_LDAC_DV) | 0x100); |
| snd_soc_write(codec, WM8900_REG_RDAC_DV, |
| snd_soc_read(codec, WM8900_REG_RDAC_DV) | 0x100); |
| snd_soc_write(codec, WM8900_REG_LADC_DV, |
| snd_soc_read(codec, WM8900_REG_LADC_DV) | 0x100); |
| snd_soc_write(codec, WM8900_REG_RADC_DV, |
| snd_soc_read(codec, WM8900_REG_RADC_DV) | 0x100); |
| |
| /* Set the DAC and mixer output bias */ |
| snd_soc_write(codec, WM8900_REG_OUTBIASCTL, 0x81); |
| |
| wm8900_dai.dev = &i2c->dev; |
| |
| wm8900_codec = codec; |
| |
| ret = snd_soc_register_codec(codec); |
| if (ret != 0) { |
| dev_err(&i2c->dev, "Failed to register codec: %d\n", ret); |
| goto err; |
| } |
| |
| ret = snd_soc_register_dai(&wm8900_dai); |
| if (ret != 0) { |
| dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret); |
| goto err_codec; |
| } |
| |
| return ret; |
| |
| err_codec: |
| snd_soc_unregister_codec(codec); |
| err: |
| kfree(wm8900); |
| wm8900_codec = NULL; |
| return ret; |
| } |
| |
| static __devexit int wm8900_i2c_remove(struct i2c_client *client) |
| { |
| snd_soc_unregister_dai(&wm8900_dai); |
| snd_soc_unregister_codec(wm8900_codec); |
| |
| wm8900_set_bias_level(wm8900_codec, SND_SOC_BIAS_OFF); |
| |
| wm8900_dai.dev = NULL; |
| kfree(snd_soc_codec_get_drvdata(wm8900_codec)); |
| wm8900_codec = NULL; |
| |
| return 0; |
| } |
| |
| static const struct i2c_device_id wm8900_i2c_id[] = { |
| { "wm8900", 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id); |
| |
| static struct i2c_driver wm8900_i2c_driver = { |
| .driver = { |
| .name = "WM8900", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wm8900_i2c_probe, |
| .remove = __devexit_p(wm8900_i2c_remove), |
| .id_table = wm8900_i2c_id, |
| }; |
| |
| static int wm8900_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| struct snd_soc_codec *codec; |
| int ret = 0; |
| |
| if (!wm8900_codec) { |
| dev_err(&pdev->dev, "I2C client not yet instantiated\n"); |
| return -ENODEV; |
| } |
| |
| codec = wm8900_codec; |
| socdev->card->codec = codec; |
| |
| /* Register pcms */ |
| ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "Failed to register new PCMs\n"); |
| goto pcm_err; |
| } |
| |
| snd_soc_add_controls(codec, wm8900_snd_controls, |
| ARRAY_SIZE(wm8900_snd_controls)); |
| wm8900_add_widgets(codec); |
| |
| pcm_err: |
| return ret; |
| } |
| |
| /* power down chip */ |
| static int wm8900_remove(struct platform_device *pdev) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| |
| snd_soc_free_pcms(socdev); |
| snd_soc_dapm_free(socdev); |
| |
| return 0; |
| } |
| |
| struct snd_soc_codec_device soc_codec_dev_wm8900 = { |
| .probe = wm8900_probe, |
| .remove = wm8900_remove, |
| .suspend = wm8900_suspend, |
| .resume = wm8900_resume, |
| }; |
| EXPORT_SYMBOL_GPL(soc_codec_dev_wm8900); |
| |
| static int __init wm8900_modinit(void) |
| { |
| return i2c_add_driver(&wm8900_i2c_driver); |
| } |
| module_init(wm8900_modinit); |
| |
| static void __exit wm8900_exit(void) |
| { |
| i2c_del_driver(&wm8900_i2c_driver); |
| } |
| module_exit(wm8900_exit); |
| |
| MODULE_DESCRIPTION("ASoC WM8900 driver"); |
| MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>"); |
| MODULE_LICENSE("GPL"); |