| /* |
| * wm8753.c -- WM8753 ALSA Soc Audio driver |
| * |
| * Copyright 2003 Wolfson Microelectronics PLC. |
| * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| * Notes: |
| * The WM8753 is a low power, high quality stereo codec with integrated PCM |
| * codec designed for portable digital telephony applications. |
| * |
| * Dual DAI:- |
| * |
| * This driver support 2 DAI PCM's. This makes the default PCM available for |
| * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for |
| * voice. |
| * |
| * Please note that the voice PCM can be connected directly to a Bluetooth |
| * codec or GSM modem and thus cannot be read or written to, although it is |
| * available to be configured with snd_hw_params(), etc and kcontrols in the |
| * normal alsa manner. |
| * |
| * Fast DAI switching:- |
| * |
| * The driver can now fast switch between the DAI configurations via a |
| * an alsa kcontrol. This allows the PCM to remain open. |
| * |
| */ |
| |
| #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/spi/spi.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 <asm/div64.h> |
| |
| #include "wm8753.h" |
| |
| static int caps_charge = 2000; |
| module_param(caps_charge, int, 0); |
| MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)"); |
| |
| static void wm8753_set_dai_mode(struct snd_soc_codec *codec, |
| unsigned int mode); |
| |
| /* |
| * wm8753 register cache |
| * We can't read the WM8753 register space when we |
| * are using 2 wire for device control, so we cache them instead. |
| */ |
| static const u16 wm8753_reg[] = { |
| 0x0008, 0x0000, 0x000a, 0x000a, |
| 0x0033, 0x0000, 0x0007, 0x00ff, |
| 0x00ff, 0x000f, 0x000f, 0x007b, |
| 0x0000, 0x0032, 0x0000, 0x00c3, |
| 0x00c3, 0x00c0, 0x0000, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0055, |
| 0x0005, 0x0050, 0x0055, 0x0050, |
| 0x0055, 0x0050, 0x0055, 0x0079, |
| 0x0079, 0x0079, 0x0079, 0x0079, |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0097, 0x0097, 0x0000, 0x0004, |
| 0x0000, 0x0083, 0x0024, 0x01ba, |
| 0x0000, 0x0083, 0x0024, 0x01ba, |
| 0x0000, 0x0000, 0x0000 |
| }; |
| |
| /* codec private data */ |
| struct wm8753_priv { |
| unsigned int sysclk; |
| unsigned int pcmclk; |
| struct snd_soc_codec codec; |
| u16 reg_cache[ARRAY_SIZE(wm8753_reg)]; |
| }; |
| |
| /* |
| * read wm8753 register cache |
| */ |
| static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec, |
| unsigned int reg) |
| { |
| u16 *cache = codec->reg_cache; |
| if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1)) |
| return -1; |
| return cache[reg - 1]; |
| } |
| |
| /* |
| * write wm8753 register cache |
| */ |
| static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec, |
| unsigned int reg, unsigned int value) |
| { |
| u16 *cache = codec->reg_cache; |
| if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1)) |
| return; |
| cache[reg - 1] = value; |
| } |
| |
| /* |
| * write to the WM8753 register space |
| */ |
| static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg, |
| unsigned int value) |
| { |
| u8 data[2]; |
| |
| /* data is |
| * D15..D9 WM8753 register offset |
| * D8...D0 register data |
| */ |
| data[0] = (reg << 1) | ((value >> 8) & 0x0001); |
| data[1] = value & 0x00ff; |
| |
| wm8753_write_reg_cache(codec, reg, value); |
| if (codec->hw_write(codec->control_data, data, 2) == 2) |
| return 0; |
| else |
| return -EIO; |
| } |
| |
| #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0) |
| |
| /* |
| * WM8753 Controls |
| */ |
| static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"}; |
| static const char *wm8753_base_filter[] = |
| {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz", |
| "100Hz @ 8kHz", "200Hz @ 8kHz"}; |
| static const char *wm8753_treble[] = {"8kHz", "4kHz"}; |
| static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"}; |
| static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"}; |
| static const char *wm8753_3d_func[] = {"Capture", "Playback"}; |
| static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"}; |
| static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"}; |
| static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"}; |
| static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"}; |
| static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"}; |
| static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2", |
| "Line 1", "Line 2"}; |
| static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"}; |
| static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"}; |
| static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"}; |
| static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"}; |
| static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2", |
| "Right PGA"}; |
| static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right", |
| "Left + Right"}; |
| static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"}; |
| static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"}; |
| static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"}; |
| static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"}; |
| static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left", |
| "Analogue Mix Right", "Digital Mono Mix"}; |
| static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k", |
| "82Hz @ 8kHz", "170Hz @ 8kHz"}; |
| static const char *wm8753_adc_filter[] = {"HiFi", "Voice"}; |
| static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"}; |
| static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"}; |
| static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC", |
| "Channel Swap"}; |
| static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"}; |
| |
| static const struct soc_enum wm8753_enum[] = { |
| SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base), |
| SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter), |
| SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble), |
| SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func), |
| SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type), |
| SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func), |
| SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc), |
| SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc), |
| SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp), |
| SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix), |
| SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase), |
| SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix), |
| SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux), |
| SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux), |
| SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux), |
| SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel), |
| SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux), |
| SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src), |
| SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3), |
| SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4), |
| SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel), |
| SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel), |
| SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc), |
| SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp), |
| SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter), |
| SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel), |
| SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode), |
| SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel), |
| SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase), |
| }; |
| |
| |
| static int wm8753_get_dai(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL); |
| |
| ucontrol->value.integer.value[0] = (mode & 0xc) >> 2; |
| return 0; |
| } |
| |
| static int wm8753_set_dai(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL); |
| |
| if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0]) |
| return 0; |
| |
| mode &= 0xfff3; |
| mode |= (ucontrol->value.integer.value[0] << 2); |
| |
| wm8753_write(codec, WM8753_IOCTL, mode); |
| wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]); |
| return 1; |
| } |
| |
| static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0); |
| static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0); |
| static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); |
| static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); |
| static const unsigned int out_tlv[] = { |
| TLV_DB_RANGE_HEAD(2), |
| /* 0000000 - 0101111 = "Analogue mute" */ |
| 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0), |
| 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0), |
| }; |
| static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0); |
| static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0); |
| static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); |
| |
| static const struct snd_kcontrol_new wm8753_snd_controls[] = { |
| SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv), |
| |
| SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0, |
| adc_tlv), |
| |
| SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, |
| 0, 127, 0, out_tlv), |
| SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, |
| 127, 0, out_tlv), |
| |
| SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv), |
| |
| SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, |
| 1, mix_tlv), |
| SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, |
| 7, 1, mix_tlv), |
| SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, |
| 1, voice_mix_tlv), |
| |
| SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7, |
| 1, 0), |
| SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, |
| 1, 0), |
| |
| SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv), |
| SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1, |
| mix_tlv), |
| SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1, |
| voice_mix_tlv), |
| SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0), |
| |
| SOC_ENUM("Bass Boost", wm8753_enum[0]), |
| SOC_ENUM("Bass Filter", wm8753_enum[1]), |
| SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1), |
| |
| SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1), |
| SOC_ENUM("Treble Cut-off", wm8753_enum[2]), |
| |
| SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1, |
| rec_mix_tlv), |
| SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1, |
| rec_mix_tlv), |
| |
| SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0, |
| pga_tlv), |
| SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0), |
| SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1), |
| |
| SOC_ENUM("Capture Filter Select", wm8753_enum[23]), |
| SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]), |
| SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1), |
| |
| SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0), |
| SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0), |
| SOC_ENUM("ALC Capture Function", wm8753_enum[3]), |
| SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0), |
| SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1), |
| SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1), |
| SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0), |
| SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0), |
| SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]), |
| SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0), |
| |
| SOC_ENUM("3D Function", wm8753_enum[5]), |
| SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]), |
| SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]), |
| SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0), |
| SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0), |
| |
| SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0), |
| SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0), |
| |
| SOC_ENUM("De-emphasis", wm8753_enum[8]), |
| SOC_ENUM("Playback Mono Mix", wm8753_enum[9]), |
| SOC_ENUM("Playback Phase", wm8753_enum[10]), |
| |
| SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv), |
| SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv), |
| |
| SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai), |
| |
| SOC_ENUM("ADC Data Select", wm8753_enum[27]), |
| SOC_ENUM("ROUT2 Phase", wm8753_enum[28]), |
| }; |
| |
| /* |
| * _DAPM_ Controls |
| */ |
| |
| /* Left Mixer */ |
| static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0), |
| SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0), |
| }; |
| |
| /* Right mixer */ |
| static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0), |
| SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0), |
| }; |
| |
| /* Mono mixer */ |
| static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0), |
| SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0), |
| SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0), |
| }; |
| |
| /* Mono 2 Mux */ |
| static const struct snd_kcontrol_new wm8753_mono2_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[17]); |
| |
| /* Out 3 Mux */ |
| static const struct snd_kcontrol_new wm8753_out3_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[18]); |
| |
| /* Out 4 Mux */ |
| static const struct snd_kcontrol_new wm8753_out4_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[19]); |
| |
| /* ADC Mono Mix */ |
| static const struct snd_kcontrol_new wm8753_adc_mono_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[22]); |
| |
| /* Record mixer */ |
| static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0), |
| SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0), |
| SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0), |
| }; |
| |
| /* Left ADC mux */ |
| static const struct snd_kcontrol_new wm8753_adc_left_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[21]); |
| |
| /* Right ADC mux */ |
| static const struct snd_kcontrol_new wm8753_adc_right_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[20]); |
| |
| /* MIC mux */ |
| static const struct snd_kcontrol_new wm8753_mic_mux_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[16]); |
| |
| /* ALC mixer */ |
| static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0), |
| SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0), |
| SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0), |
| SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0), |
| }; |
| |
| /* Left Line mux */ |
| static const struct snd_kcontrol_new wm8753_line_left_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[14]); |
| |
| /* Right Line mux */ |
| static const struct snd_kcontrol_new wm8753_line_right_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[13]); |
| |
| /* Mono Line mux */ |
| static const struct snd_kcontrol_new wm8753_line_mono_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[12]); |
| |
| /* Line mux and mixer */ |
| static const struct snd_kcontrol_new wm8753_line_mux_mix_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[11]); |
| |
| /* Rx mux and mixer */ |
| static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[15]); |
| |
| /* Mic Selector Mux */ |
| static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls = |
| SOC_DAPM_ENUM("Route", wm8753_enum[25]); |
| |
| static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { |
| SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0), |
| SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0, |
| &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)), |
| SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0), |
| SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0), |
| SND_SOC_DAPM_OUTPUT("LOUT1"), |
| SND_SOC_DAPM_OUTPUT("LOUT2"), |
| SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0, |
| &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)), |
| SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0), |
| SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0), |
| SND_SOC_DAPM_OUTPUT("ROUT1"), |
| SND_SOC_DAPM_OUTPUT("ROUT2"), |
| SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0, |
| &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)), |
| SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0), |
| SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0), |
| SND_SOC_DAPM_OUTPUT("MONO1"), |
| SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls), |
| SND_SOC_DAPM_OUTPUT("MONO2"), |
| SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0), |
| SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls), |
| SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0), |
| SND_SOC_DAPM_OUTPUT("OUT3"), |
| SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls), |
| SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0), |
| SND_SOC_DAPM_OUTPUT("OUT4"), |
| SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0, |
| &wm8753_record_mixer_controls[0], |
| ARRAY_SIZE(wm8753_record_mixer_controls)), |
| SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0), |
| SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0), |
| SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0, |
| &wm8753_adc_mono_controls), |
| SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0, |
| &wm8753_adc_mono_controls), |
| SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_adc_left_controls), |
| SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_adc_right_controls), |
| SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_mic_mux_controls), |
| SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0), |
| SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0, |
| &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)), |
| SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_line_left_controls), |
| SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_line_right_controls), |
| SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_line_mono_controls), |
| SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0, |
| &wm8753_line_mux_mix_controls), |
| SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0, |
| &wm8753_rx_mux_mix_controls), |
| SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0), |
| SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0, |
| &wm8753_mic_sel_mux_controls), |
| SND_SOC_DAPM_INPUT("LINE1"), |
| SND_SOC_DAPM_INPUT("LINE2"), |
| SND_SOC_DAPM_INPUT("RXP"), |
| SND_SOC_DAPM_INPUT("RXN"), |
| SND_SOC_DAPM_INPUT("ACIN"), |
| SND_SOC_DAPM_OUTPUT("ACOP"), |
| SND_SOC_DAPM_INPUT("MIC1N"), |
| SND_SOC_DAPM_INPUT("MIC1"), |
| SND_SOC_DAPM_INPUT("MIC2N"), |
| SND_SOC_DAPM_INPUT("MIC2"), |
| SND_SOC_DAPM_VMID("VREF"), |
| }; |
| |
| static const struct snd_soc_dapm_route audio_map[] = { |
| /* left mixer */ |
| {"Left Mixer", "Left Playback Switch", "Left DAC"}, |
| {"Left Mixer", "Voice Playback Switch", "Voice DAC"}, |
| {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, |
| {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"}, |
| |
| /* right mixer */ |
| {"Right Mixer", "Right Playback Switch", "Right DAC"}, |
| {"Right Mixer", "Voice Playback Switch", "Voice DAC"}, |
| {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, |
| {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"}, |
| |
| /* mono mixer */ |
| {"Mono Mixer", "Voice Playback Switch", "Voice DAC"}, |
| {"Mono Mixer", "Left Playback Switch", "Left DAC"}, |
| {"Mono Mixer", "Right Playback Switch", "Right DAC"}, |
| {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, |
| {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"}, |
| |
| /* left out */ |
| {"Left Out 1", NULL, "Left Mixer"}, |
| {"Left Out 2", NULL, "Left Mixer"}, |
| {"LOUT1", NULL, "Left Out 1"}, |
| {"LOUT2", NULL, "Left Out 2"}, |
| |
| /* right out */ |
| {"Right Out 1", NULL, "Right Mixer"}, |
| {"Right Out 2", NULL, "Right Mixer"}, |
| {"ROUT1", NULL, "Right Out 1"}, |
| {"ROUT2", NULL, "Right Out 2"}, |
| |
| /* mono 1 out */ |
| {"Mono Out 1", NULL, "Mono Mixer"}, |
| {"MONO1", NULL, "Mono Out 1"}, |
| |
| /* mono 2 out */ |
| {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"}, |
| {"Mono 2 Mux", "Inverted Mono 1", "MONO1"}, |
| {"Mono 2 Mux", "Left", "Left Mixer"}, |
| {"Mono 2 Mux", "Right", "Right Mixer"}, |
| {"Mono Out 2", NULL, "Mono 2 Mux"}, |
| {"MONO2", NULL, "Mono Out 2"}, |
| |
| /* out 3 */ |
| {"Out3 Left + Right", NULL, "Left Mixer"}, |
| {"Out3 Left + Right", NULL, "Right Mixer"}, |
| {"Out3 Mux", "VREF", "VREF"}, |
| {"Out3 Mux", "Left + Right", "Out3 Left + Right"}, |
| {"Out3 Mux", "ROUT2", "ROUT2"}, |
| {"Out 3", NULL, "Out3 Mux"}, |
| {"OUT3", NULL, "Out 3"}, |
| |
| /* out 4 */ |
| {"Out4 Mux", "VREF", "VREF"}, |
| {"Out4 Mux", "Capture ST", "Playback Mixer"}, |
| {"Out4 Mux", "LOUT2", "LOUT2"}, |
| {"Out 4", NULL, "Out4 Mux"}, |
| {"OUT4", NULL, "Out 4"}, |
| |
| /* record mixer */ |
| {"Playback Mixer", "Left Capture Switch", "Left Mixer"}, |
| {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"}, |
| {"Playback Mixer", "Right Capture Switch", "Right Mixer"}, |
| |
| /* Mic/SideTone Mux */ |
| {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"}, |
| {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"}, |
| {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"}, |
| {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"}, |
| |
| /* Capture Left Mux */ |
| {"Capture Left Mux", "PGA", "Left Capture Volume"}, |
| {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"}, |
| {"Capture Left Mux", "Line", "LINE1"}, |
| |
| /* Capture Right Mux */ |
| {"Capture Right Mux", "PGA", "Right Capture Volume"}, |
| {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"}, |
| {"Capture Right Mux", "Sidetone", "Playback Mixer"}, |
| |
| /* Mono Capture mixer-mux */ |
| {"Capture Right Mixer", "Stereo", "Capture Right Mux"}, |
| {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"}, |
| {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"}, |
| {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"}, |
| {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"}, |
| {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"}, |
| {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"}, |
| {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"}, |
| {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"}, |
| |
| /* ADC */ |
| {"Left ADC", NULL, "Capture Left Mixer"}, |
| {"Right ADC", NULL, "Capture Right Mixer"}, |
| |
| /* Left Capture Volume */ |
| {"Left Capture Volume", NULL, "ACIN"}, |
| |
| /* Right Capture Volume */ |
| {"Right Capture Volume", NULL, "Mic 2 Volume"}, |
| |
| /* ALC Mixer */ |
| {"ALC Mixer", "Line Capture Switch", "Line Mixer"}, |
| {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"}, |
| {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"}, |
| {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"}, |
| |
| /* Line Left Mux */ |
| {"Line Left Mux", "Line 1", "LINE1"}, |
| {"Line Left Mux", "Rx Mix", "Rx Mixer"}, |
| |
| /* Line Right Mux */ |
| {"Line Right Mux", "Line 2", "LINE2"}, |
| {"Line Right Mux", "Rx Mix", "Rx Mixer"}, |
| |
| /* Line Mono Mux */ |
| {"Line Mono Mux", "Line Mix", "Line Mixer"}, |
| {"Line Mono Mux", "Rx Mix", "Rx Mixer"}, |
| |
| /* Line Mixer/Mux */ |
| {"Line Mixer", "Line 1 + 2", "LINE1"}, |
| {"Line Mixer", "Line 1 - 2", "LINE1"}, |
| {"Line Mixer", "Line 1 + 2", "LINE2"}, |
| {"Line Mixer", "Line 1 - 2", "LINE2"}, |
| {"Line Mixer", "Line 1", "LINE1"}, |
| {"Line Mixer", "Line 2", "LINE2"}, |
| |
| /* Rx Mixer/Mux */ |
| {"Rx Mixer", "RXP - RXN", "RXP"}, |
| {"Rx Mixer", "RXP + RXN", "RXP"}, |
| {"Rx Mixer", "RXP - RXN", "RXN"}, |
| {"Rx Mixer", "RXP + RXN", "RXN"}, |
| {"Rx Mixer", "RXP", "RXP"}, |
| {"Rx Mixer", "RXN", "RXN"}, |
| |
| /* Mic 1 Volume */ |
| {"Mic 1 Volume", NULL, "MIC1N"}, |
| {"Mic 1 Volume", NULL, "Mic Selection Mux"}, |
| |
| /* Mic 2 Volume */ |
| {"Mic 2 Volume", NULL, "MIC2N"}, |
| {"Mic 2 Volume", NULL, "MIC2"}, |
| |
| /* Mic Selector Mux */ |
| {"Mic Selection Mux", "Mic 1", "MIC1"}, |
| {"Mic Selection Mux", "Mic 2", "MIC2N"}, |
| {"Mic Selection Mux", "Mic 3", "MIC2"}, |
| |
| /* ACOP */ |
| {"ACOP", NULL, "ALC Mixer"}, |
| }; |
| |
| static int wm8753_add_widgets(struct snd_soc_codec *codec) |
| { |
| snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets, |
| ARRAY_SIZE(wm8753_dapm_widgets)); |
| |
| snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
| |
| snd_soc_dapm_new_widgets(codec); |
| return 0; |
| } |
| |
| /* PLL divisors */ |
| struct _pll_div { |
| u32 div2:1; |
| u32 n:4; |
| u32 k:24; |
| }; |
| |
| /* The size in bits of the pll divide multiplied by 10 |
| * to allow rounding later */ |
| #define FIXED_PLL_SIZE ((1 << 22) * 10) |
| |
| static void pll_factors(struct _pll_div *pll_div, unsigned int target, |
| unsigned int source) |
| { |
| u64 Kpart; |
| unsigned int K, Ndiv, Nmod; |
| |
| Ndiv = target / source; |
| if (Ndiv < 6) { |
| source >>= 1; |
| pll_div->div2 = 1; |
| Ndiv = target / source; |
| } else |
| pll_div->div2 = 0; |
| |
| if ((Ndiv < 6) || (Ndiv > 12)) |
| printk(KERN_WARNING |
| "wm8753: unsupported N = %u\n", Ndiv); |
| |
| pll_div->n = Ndiv; |
| Nmod = target % source; |
| Kpart = FIXED_PLL_SIZE * (long long)Nmod; |
| |
| do_div(Kpart, source); |
| |
| K = Kpart & 0xFFFFFFFF; |
| |
| /* Check if we need to round */ |
| if ((K % 10) >= 5) |
| K += 5; |
| |
| /* Move down to proper range now rounding is done */ |
| K /= 10; |
| |
| pll_div->k = K; |
| } |
| |
| static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, |
| int source, unsigned int freq_in, unsigned int freq_out) |
| { |
| u16 reg, enable; |
| int offset; |
| struct snd_soc_codec *codec = codec_dai->codec; |
| |
| if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2) |
| return -ENODEV; |
| |
| if (pll_id == WM8753_PLL1) { |
| offset = 0; |
| enable = 0x10; |
| reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef; |
| } else { |
| offset = 4; |
| enable = 0x8; |
| reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7; |
| } |
| |
| if (!freq_in || !freq_out) { |
| /* disable PLL */ |
| wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026); |
| wm8753_write(codec, WM8753_CLOCK, reg); |
| return 0; |
| } else { |
| u16 value = 0; |
| struct _pll_div pll_div; |
| |
| pll_factors(&pll_div, freq_out * 8, freq_in); |
| |
| /* set up N and K PLL divisor ratios */ |
| /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */ |
| value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18); |
| wm8753_write(codec, WM8753_PLL1CTL2 + offset, value); |
| |
| /* bits 8:0 = PLL_K[17:9] */ |
| value = (pll_div.k & 0x03fe00) >> 9; |
| wm8753_write(codec, WM8753_PLL1CTL3 + offset, value); |
| |
| /* bits 8:0 = PLL_K[8:0] */ |
| value = pll_div.k & 0x0001ff; |
| wm8753_write(codec, WM8753_PLL1CTL4 + offset, value); |
| |
| /* set PLL as input and enable */ |
| wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 | |
| (pll_div.div2 << 3)); |
| wm8753_write(codec, WM8753_CLOCK, reg | enable); |
| } |
| return 0; |
| } |
| |
| struct _coeff_div { |
| u32 mclk; |
| u32 rate; |
| u8 sr:5; |
| u8 usb:1; |
| }; |
| |
| /* codec hifi mclk (after PLL) clock divider coefficients */ |
| static const struct _coeff_div coeff_div[] = { |
| /* 8k */ |
| {12288000, 8000, 0x6, 0x0}, |
| {11289600, 8000, 0x16, 0x0}, |
| {18432000, 8000, 0x7, 0x0}, |
| {16934400, 8000, 0x17, 0x0}, |
| {12000000, 8000, 0x6, 0x1}, |
| |
| /* 11.025k */ |
| {11289600, 11025, 0x18, 0x0}, |
| {16934400, 11025, 0x19, 0x0}, |
| {12000000, 11025, 0x19, 0x1}, |
| |
| /* 16k */ |
| {12288000, 16000, 0xa, 0x0}, |
| {18432000, 16000, 0xb, 0x0}, |
| {12000000, 16000, 0xa, 0x1}, |
| |
| /* 22.05k */ |
| {11289600, 22050, 0x1a, 0x0}, |
| {16934400, 22050, 0x1b, 0x0}, |
| {12000000, 22050, 0x1b, 0x1}, |
| |
| /* 32k */ |
| {12288000, 32000, 0xc, 0x0}, |
| {18432000, 32000, 0xd, 0x0}, |
| {12000000, 32000, 0xa, 0x1}, |
| |
| /* 44.1k */ |
| {11289600, 44100, 0x10, 0x0}, |
| {16934400, 44100, 0x11, 0x0}, |
| {12000000, 44100, 0x11, 0x1}, |
| |
| /* 48k */ |
| {12288000, 48000, 0x0, 0x0}, |
| {18432000, 48000, 0x1, 0x0}, |
| {12000000, 48000, 0x0, 0x1}, |
| |
| /* 88.2k */ |
| {11289600, 88200, 0x1e, 0x0}, |
| {16934400, 88200, 0x1f, 0x0}, |
| {12000000, 88200, 0x1f, 0x1}, |
| |
| /* 96k */ |
| {12288000, 96000, 0xe, 0x0}, |
| {18432000, 96000, 0xf, 0x0}, |
| {12000000, 96000, 0xe, 0x1}, |
| }; |
| |
| static int get_coeff(int mclk, int rate) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
| return i; |
| } |
| return -EINVAL; |
| } |
| |
| /* |
| * Clock after PLL and dividers |
| */ |
| static int wm8753_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 wm8753_priv *wm8753 = codec->private_data; |
| |
| switch (freq) { |
| case 11289600: |
| case 12000000: |
| case 12288000: |
| case 16934400: |
| case 18432000: |
| if (clk_id == WM8753_MCLK) { |
| wm8753->sysclk = freq; |
| return 0; |
| } else if (clk_id == WM8753_PCMCLK) { |
| wm8753->pcmclk = freq; |
| return 0; |
| } |
| break; |
| } |
| return -EINVAL; |
| } |
| |
| /* |
| * Set's ADC and Voice DAC format. |
| */ |
| static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec; |
| |
| /* interface format */ |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| voice |= 0x0002; |
| break; |
| case SND_SOC_DAIFMT_RIGHT_J: |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| voice |= 0x0001; |
| break; |
| case SND_SOC_DAIFMT_DSP_A: |
| voice |= 0x0003; |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| voice |= 0x0013; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wm8753_write(codec, WM8753_PCM, voice); |
| return 0; |
| } |
| |
| /* |
| * Set PCM DAI bit size and sample rate. |
| */ |
| static int wm8753_pcm_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; |
| struct wm8753_priv *wm8753 = codec->private_data; |
| u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3; |
| u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f; |
| |
| /* bit size */ |
| switch (params_format(params)) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| break; |
| case SNDRV_PCM_FORMAT_S20_3LE: |
| voice |= 0x0004; |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| voice |= 0x0008; |
| break; |
| case SNDRV_PCM_FORMAT_S32_LE: |
| voice |= 0x000c; |
| break; |
| } |
| |
| /* sample rate */ |
| if (params_rate(params) * 384 == wm8753->pcmclk) |
| srate |= 0x80; |
| wm8753_write(codec, WM8753_SRATE1, srate); |
| |
| wm8753_write(codec, WM8753_PCM, voice); |
| return 0; |
| } |
| |
| /* |
| * Set's PCM dai fmt and BCLK. |
| */ |
| static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 voice, ioctl; |
| |
| voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f; |
| ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d; |
| |
| /* set master/slave audio interface */ |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBS_CFS: |
| break; |
| case SND_SOC_DAIFMT_CBM_CFM: |
| ioctl |= 0x2; |
| case SND_SOC_DAIFMT_CBM_CFS: |
| voice |= 0x0040; |
| 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: |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| voice |= 0x0080; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case SND_SOC_DAIFMT_I2S: |
| case SND_SOC_DAIFMT_RIGHT_J: |
| case SND_SOC_DAIFMT_LEFT_J: |
| voice &= ~0x0010; |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| break; |
| case SND_SOC_DAIFMT_IB_IF: |
| voice |= 0x0090; |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| voice |= 0x0080; |
| break; |
| case SND_SOC_DAIFMT_NB_IF: |
| voice |= 0x0010; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wm8753_write(codec, WM8753_PCM, voice); |
| wm8753_write(codec, WM8753_IOCTL, ioctl); |
| return 0; |
| } |
| |
| static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai, |
| int div_id, int div) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 reg; |
| |
| switch (div_id) { |
| case WM8753_PCMDIV: |
| reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f; |
| wm8753_write(codec, WM8753_CLOCK, reg | div); |
| break; |
| case WM8753_BCLKDIV: |
| reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7; |
| wm8753_write(codec, WM8753_SRATE2, reg | div); |
| break; |
| case WM8753_VXCLKDIV: |
| reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f; |
| wm8753_write(codec, WM8753_SRATE2, reg | div); |
| break; |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /* |
| * Set's HiFi DAC format. |
| */ |
| static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0; |
| |
| /* interface format */ |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| hifi |= 0x0002; |
| break; |
| case SND_SOC_DAIFMT_RIGHT_J: |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| hifi |= 0x0001; |
| break; |
| case SND_SOC_DAIFMT_DSP_A: |
| hifi |= 0x0003; |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| hifi |= 0x0013; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wm8753_write(codec, WM8753_HIFI, hifi); |
| return 0; |
| } |
| |
| /* |
| * Set's I2S DAI format. |
| */ |
| static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 ioctl, hifi; |
| |
| hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f; |
| ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae; |
| |
| /* set master/slave audio interface */ |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBS_CFS: |
| break; |
| case SND_SOC_DAIFMT_CBM_CFM: |
| ioctl |= 0x1; |
| case SND_SOC_DAIFMT_CBM_CFS: |
| hifi |= 0x0040; |
| 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: |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| hifi |= 0x0080; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case SND_SOC_DAIFMT_I2S: |
| case SND_SOC_DAIFMT_RIGHT_J: |
| case SND_SOC_DAIFMT_LEFT_J: |
| hifi &= ~0x0010; |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| break; |
| case SND_SOC_DAIFMT_IB_IF: |
| hifi |= 0x0090; |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| hifi |= 0x0080; |
| break; |
| case SND_SOC_DAIFMT_NB_IF: |
| hifi |= 0x0010; |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wm8753_write(codec, WM8753_HIFI, hifi); |
| wm8753_write(codec, WM8753_IOCTL, ioctl); |
| return 0; |
| } |
| |
| /* |
| * Set PCM DAI bit size and sample rate. |
| */ |
| static int wm8753_i2s_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; |
| struct wm8753_priv *wm8753 = codec->private_data; |
| u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0; |
| u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3; |
| int coeff; |
| |
| /* is digital filter coefficient valid ? */ |
| coeff = get_coeff(wm8753->sysclk, params_rate(params)); |
| if (coeff < 0) { |
| printk(KERN_ERR "wm8753 invalid MCLK or rate\n"); |
| return coeff; |
| } |
| wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) | |
| coeff_div[coeff].usb); |
| |
| /* bit size */ |
| switch (params_format(params)) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| break; |
| case SNDRV_PCM_FORMAT_S20_3LE: |
| hifi |= 0x0004; |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| hifi |= 0x0008; |
| break; |
| case SNDRV_PCM_FORMAT_S32_LE: |
| hifi |= 0x000c; |
| break; |
| } |
| |
| wm8753_write(codec, WM8753_HIFI, hifi); |
| return 0; |
| } |
| |
| static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 clock; |
| |
| /* set clk source as pcmclk */ |
| clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; |
| wm8753_write(codec, WM8753_CLOCK, clock); |
| |
| if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) |
| return -EINVAL; |
| return wm8753_pcm_set_dai_fmt(codec_dai, fmt); |
| } |
| |
| static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0) |
| return -EINVAL; |
| return wm8753_i2s_set_dai_fmt(codec_dai, fmt); |
| } |
| |
| static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 clock; |
| |
| /* set clk source as pcmclk */ |
| clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; |
| wm8753_write(codec, WM8753_CLOCK, clock); |
| |
| if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) |
| return -EINVAL; |
| return wm8753_i2s_set_dai_fmt(codec_dai, fmt); |
| } |
| |
| static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 clock; |
| |
| /* set clk source as mclk */ |
| clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; |
| wm8753_write(codec, WM8753_CLOCK, clock | 0x4); |
| |
| if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0) |
| return -EINVAL; |
| if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) |
| return -EINVAL; |
| return wm8753_i2s_set_dai_fmt(codec_dai, fmt); |
| } |
| |
| static int wm8753_mute(struct snd_soc_dai *dai, int mute) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7; |
| |
| /* the digital mute covers the HiFi and Voice DAC's on the WM8753. |
| * make sure we check if they are not both active when we mute */ |
| if (mute && dai->id == 1) { |
| if (!wm8753_dai[WM8753_DAI_VOICE].playback.active || |
| !wm8753_dai[WM8753_DAI_HIFI].playback.active) |
| wm8753_write(codec, WM8753_DAC, mute_reg | 0x8); |
| } else { |
| if (mute) |
| wm8753_write(codec, WM8753_DAC, mute_reg | 0x8); |
| else |
| wm8753_write(codec, WM8753_DAC, mute_reg); |
| } |
| |
| return 0; |
| } |
| |
| static int wm8753_set_bias_level(struct snd_soc_codec *codec, |
| enum snd_soc_bias_level level) |
| { |
| u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e; |
| |
| switch (level) { |
| case SND_SOC_BIAS_ON: |
| /* set vmid to 50k and unmute dac */ |
| wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0); |
| break; |
| case SND_SOC_BIAS_PREPARE: |
| /* set vmid to 5k for quick power up */ |
| wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1); |
| break; |
| case SND_SOC_BIAS_STANDBY: |
| /* mute dac and set vmid to 500k, enable VREF */ |
| wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141); |
| break; |
| case SND_SOC_BIAS_OFF: |
| wm8753_write(codec, WM8753_PWR1, 0x0001); |
| break; |
| } |
| codec->bias_level = level; |
| return 0; |
| } |
| |
| #define WM8753_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 |\ |
| SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| |
| #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| SNDRV_PCM_FMTBIT_S24_LE) |
| |
| /* |
| * The WM8753 supports upto 4 different and mutually exclusive DAI |
| * configurations. This gives 2 PCM's available for use, hifi and voice. |
| * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI |
| * is connected between the wm8753 and a BT codec or GSM modem. |
| * |
| * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI |
| * 2. Voice over HIFI DAI - HIFI disabled |
| * 3. Voice disabled - HIFI over HIFI |
| * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture |
| */ |
| static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = { |
| .hw_params = wm8753_i2s_hw_params, |
| .digital_mute = wm8753_mute, |
| .set_fmt = wm8753_mode1h_set_dai_fmt, |
| .set_clkdiv = wm8753_set_dai_clkdiv, |
| .set_pll = wm8753_set_dai_pll, |
| .set_sysclk = wm8753_set_dai_sysclk, |
| }; |
| |
| static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = { |
| .hw_params = wm8753_pcm_hw_params, |
| .digital_mute = wm8753_mute, |
| .set_fmt = wm8753_mode1v_set_dai_fmt, |
| .set_clkdiv = wm8753_set_dai_clkdiv, |
| .set_pll = wm8753_set_dai_pll, |
| .set_sysclk = wm8753_set_dai_sysclk, |
| }; |
| |
| static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = { |
| .hw_params = wm8753_pcm_hw_params, |
| .digital_mute = wm8753_mute, |
| .set_fmt = wm8753_mode2_set_dai_fmt, |
| .set_clkdiv = wm8753_set_dai_clkdiv, |
| .set_pll = wm8753_set_dai_pll, |
| .set_sysclk = wm8753_set_dai_sysclk, |
| }; |
| |
| static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3 = { |
| .hw_params = wm8753_i2s_hw_params, |
| .digital_mute = wm8753_mute, |
| .set_fmt = wm8753_mode3_4_set_dai_fmt, |
| .set_clkdiv = wm8753_set_dai_clkdiv, |
| .set_pll = wm8753_set_dai_pll, |
| .set_sysclk = wm8753_set_dai_sysclk, |
| }; |
| |
| static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4 = { |
| .hw_params = wm8753_i2s_hw_params, |
| .digital_mute = wm8753_mute, |
| .set_fmt = wm8753_mode3_4_set_dai_fmt, |
| .set_clkdiv = wm8753_set_dai_clkdiv, |
| .set_pll = wm8753_set_dai_pll, |
| .set_sysclk = wm8753_set_dai_sysclk, |
| }; |
| |
| static const struct snd_soc_dai wm8753_all_dai[] = { |
| /* DAI HiFi mode 1 */ |
| { .name = "WM8753 HiFi", |
| .id = 1, |
| .playback = { |
| .stream_name = "HiFi Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS}, |
| .capture = { /* dummy for fast DAI switching */ |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS}, |
| .ops = &wm8753_dai_ops_hifi_mode1, |
| }, |
| /* DAI Voice mode 1 */ |
| { .name = "WM8753 Voice", |
| .id = 1, |
| .playback = { |
| .stream_name = "Voice Playback", |
| .channels_min = 1, |
| .channels_max = 1, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .ops = &wm8753_dai_ops_voice_mode1, |
| }, |
| /* DAI HiFi mode 2 - dummy */ |
| { .name = "WM8753 HiFi", |
| .id = 2, |
| }, |
| /* DAI Voice mode 2 */ |
| { .name = "WM8753 Voice", |
| .id = 2, |
| .playback = { |
| .stream_name = "Voice Playback", |
| .channels_min = 1, |
| .channels_max = 1, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .ops = &wm8753_dai_ops_voice_mode2, |
| }, |
| /* DAI HiFi mode 3 */ |
| { .name = "WM8753 HiFi", |
| .id = 3, |
| .playback = { |
| .stream_name = "HiFi Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .ops = &wm8753_dai_ops_hifi_mode3, |
| }, |
| /* DAI Voice mode 3 - dummy */ |
| { .name = "WM8753 Voice", |
| .id = 3, |
| }, |
| /* DAI HiFi mode 4 */ |
| { .name = "WM8753 HiFi", |
| .id = 4, |
| .playback = { |
| .stream_name = "HiFi Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8753_RATES, |
| .formats = WM8753_FORMATS,}, |
| .ops = &wm8753_dai_ops_hifi_mode4, |
| }, |
| /* DAI Voice mode 4 - dummy */ |
| { .name = "WM8753 Voice", |
| .id = 4, |
| }, |
| }; |
| |
| struct snd_soc_dai wm8753_dai[] = { |
| { |
| .name = "WM8753 DAI 0", |
| }, |
| { |
| .name = "WM8753 DAI 1", |
| }, |
| }; |
| EXPORT_SYMBOL_GPL(wm8753_dai); |
| |
| static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode) |
| { |
| if (mode < 4) { |
| int playback_active, capture_active, codec_active, pop_wait; |
| void *private_data; |
| struct list_head list; |
| |
| playback_active = wm8753_dai[0].playback.active; |
| capture_active = wm8753_dai[0].capture.active; |
| codec_active = wm8753_dai[0].active; |
| private_data = wm8753_dai[0].private_data; |
| pop_wait = wm8753_dai[0].pop_wait; |
| list = wm8753_dai[0].list; |
| wm8753_dai[0] = wm8753_all_dai[mode << 1]; |
| wm8753_dai[0].playback.active = playback_active; |
| wm8753_dai[0].capture.active = capture_active; |
| wm8753_dai[0].active = codec_active; |
| wm8753_dai[0].private_data = private_data; |
| wm8753_dai[0].pop_wait = pop_wait; |
| wm8753_dai[0].list = list; |
| |
| playback_active = wm8753_dai[1].playback.active; |
| capture_active = wm8753_dai[1].capture.active; |
| codec_active = wm8753_dai[1].active; |
| private_data = wm8753_dai[1].private_data; |
| pop_wait = wm8753_dai[1].pop_wait; |
| list = wm8753_dai[1].list; |
| wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1]; |
| wm8753_dai[1].playback.active = playback_active; |
| wm8753_dai[1].capture.active = capture_active; |
| wm8753_dai[1].active = codec_active; |
| wm8753_dai[1].private_data = private_data; |
| wm8753_dai[1].pop_wait = pop_wait; |
| wm8753_dai[1].list = list; |
| } |
| wm8753_dai[0].codec = codec; |
| wm8753_dai[1].codec = codec; |
| } |
| |
| static void wm8753_work(struct work_struct *work) |
| { |
| struct snd_soc_codec *codec = |
| container_of(work, struct snd_soc_codec, delayed_work.work); |
| wm8753_set_bias_level(codec, codec->bias_level); |
| } |
| |
| static int wm8753_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; |
| |
| /* we only need to suspend if we are a valid card */ |
| if (!codec->card) |
| return 0; |
| |
| wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| return 0; |
| } |
| |
| static int wm8753_resume(struct platform_device *pdev) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| struct snd_soc_codec *codec = socdev->card->codec; |
| int i; |
| u8 data[2]; |
| u16 *cache = codec->reg_cache; |
| |
| /* we only need to resume if we are a valid card */ |
| if (!codec->card) |
| return 0; |
| |
| /* Sync reg_cache with the hardware */ |
| for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) { |
| if (i + 1 == WM8753_RESET) |
| continue; |
| |
| /* No point in writing hardware default values back */ |
| if (cache[i] == wm8753_reg[i]) |
| continue; |
| |
| data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001); |
| data[1] = cache[i] & 0x00ff; |
| codec->hw_write(codec->control_data, data, 2); |
| } |
| |
| wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| |
| /* charge wm8753 caps */ |
| if (codec->suspend_bias_level == SND_SOC_BIAS_ON) { |
| wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE); |
| codec->bias_level = SND_SOC_BIAS_ON; |
| schedule_delayed_work(&codec->delayed_work, |
| msecs_to_jiffies(caps_charge)); |
| } |
| |
| return 0; |
| } |
| |
| static struct snd_soc_codec *wm8753_codec; |
| |
| static int wm8753_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| struct snd_soc_codec *codec; |
| int ret = 0; |
| |
| if (!wm8753_codec) { |
| dev_err(&pdev->dev, "WM8753 codec not yet registered\n"); |
| return -EINVAL; |
| } |
| |
| socdev->card->codec = wm8753_codec; |
| codec = wm8753_codec; |
| |
| wm8753_set_dai_mode(codec, 0); |
| |
| /* register pcms */ |
| ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); |
| if (ret < 0) { |
| printk(KERN_ERR "wm8753: failed to create pcms\n"); |
| goto pcm_err; |
| } |
| |
| snd_soc_add_controls(codec, wm8753_snd_controls, |
| ARRAY_SIZE(wm8753_snd_controls)); |
| wm8753_add_widgets(codec); |
| ret = snd_soc_init_card(socdev); |
| if (ret < 0) { |
| printk(KERN_ERR "wm8753: failed to register card\n"); |
| goto card_err; |
| } |
| |
| return 0; |
| |
| card_err: |
| snd_soc_free_pcms(socdev); |
| snd_soc_dapm_free(socdev); |
| |
| pcm_err: |
| return ret; |
| } |
| |
| /* |
| * This function forces any delayed work to be queued and run. |
| */ |
| static int run_delayed_work(struct delayed_work *dwork) |
| { |
| int ret; |
| |
| /* cancel any work waiting to be queued. */ |
| ret = cancel_delayed_work(dwork); |
| |
| /* if there was any work waiting then we run it now and |
| * wait for it's completion */ |
| if (ret) { |
| schedule_delayed_work(dwork, 0); |
| flush_scheduled_work(); |
| } |
| return ret; |
| } |
| |
| /* power down chip */ |
| static int wm8753_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_wm8753 = { |
| .probe = wm8753_probe, |
| .remove = wm8753_remove, |
| .suspend = wm8753_suspend, |
| .resume = wm8753_resume, |
| }; |
| EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753); |
| |
| static int wm8753_register(struct wm8753_priv *wm8753) |
| { |
| int ret, i; |
| struct snd_soc_codec *codec = &wm8753->codec; |
| u16 reg; |
| |
| if (wm8753_codec) { |
| dev_err(codec->dev, "Multiple WM8753 devices not supported\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| mutex_init(&codec->mutex); |
| INIT_LIST_HEAD(&codec->dapm_widgets); |
| INIT_LIST_HEAD(&codec->dapm_paths); |
| |
| codec->name = "WM8753"; |
| codec->owner = THIS_MODULE; |
| codec->read = wm8753_read_reg_cache; |
| codec->write = wm8753_write; |
| codec->bias_level = SND_SOC_BIAS_STANDBY; |
| codec->set_bias_level = wm8753_set_bias_level; |
| codec->dai = wm8753_dai; |
| codec->num_dai = 2; |
| codec->reg_cache_size = ARRAY_SIZE(wm8753->reg_cache) + 1; |
| codec->reg_cache = &wm8753->reg_cache; |
| codec->private_data = wm8753; |
| |
| memcpy(codec->reg_cache, wm8753_reg, sizeof(wm8753->reg_cache)); |
| INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work); |
| |
| ret = wm8753_reset(codec); |
| if (ret < 0) { |
| dev_err(codec->dev, "Failed to issue reset\n"); |
| goto err; |
| } |
| |
| /* charge output caps */ |
| wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE); |
| schedule_delayed_work(&codec->delayed_work, |
| msecs_to_jiffies(caps_charge)); |
| |
| /* set the update bits */ |
| reg = wm8753_read_reg_cache(codec, WM8753_LDAC); |
| wm8753_write(codec, WM8753_LDAC, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_RDAC); |
| wm8753_write(codec, WM8753_RDAC, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_LADC); |
| wm8753_write(codec, WM8753_LADC, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_RADC); |
| wm8753_write(codec, WM8753_RADC, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V); |
| wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V); |
| wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V); |
| wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V); |
| wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_LINVOL); |
| wm8753_write(codec, WM8753_LINVOL, reg | 0x0100); |
| reg = wm8753_read_reg_cache(codec, WM8753_RINVOL); |
| wm8753_write(codec, WM8753_RINVOL, reg | 0x0100); |
| |
| wm8753_codec = codec; |
| |
| for (i = 0; i < ARRAY_SIZE(wm8753_dai); i++) |
| wm8753_dai[i].dev = codec->dev; |
| |
| ret = snd_soc_register_codec(codec); |
| if (ret != 0) { |
| dev_err(codec->dev, "Failed to register codec: %d\n", ret); |
| goto err; |
| } |
| |
| ret = snd_soc_register_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai)); |
| if (ret != 0) { |
| dev_err(codec->dev, "Failed to register DAIs: %d\n", ret); |
| goto err_codec; |
| } |
| |
| return 0; |
| |
| err_codec: |
| run_delayed_work(&codec->delayed_work); |
| snd_soc_unregister_codec(codec); |
| err: |
| kfree(wm8753); |
| return ret; |
| } |
| |
| static void wm8753_unregister(struct wm8753_priv *wm8753) |
| { |
| wm8753_set_bias_level(&wm8753->codec, SND_SOC_BIAS_OFF); |
| run_delayed_work(&wm8753->codec.delayed_work); |
| snd_soc_unregister_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai)); |
| snd_soc_unregister_codec(&wm8753->codec); |
| kfree(wm8753); |
| wm8753_codec = NULL; |
| } |
| |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| |
| static int wm8753_i2c_probe(struct i2c_client *i2c, |
| const struct i2c_device_id *id) |
| { |
| struct snd_soc_codec *codec; |
| struct wm8753_priv *wm8753; |
| |
| wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); |
| if (wm8753 == NULL) |
| return -ENOMEM; |
| |
| codec = &wm8753->codec; |
| codec->hw_write = (hw_write_t)i2c_master_send; |
| codec->control_data = i2c; |
| i2c_set_clientdata(i2c, wm8753); |
| |
| codec->dev = &i2c->dev; |
| |
| return wm8753_register(wm8753); |
| } |
| |
| static int wm8753_i2c_remove(struct i2c_client *client) |
| { |
| struct wm8753_priv *wm8753 = i2c_get_clientdata(client); |
| wm8753_unregister(wm8753); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int wm8753_i2c_suspend(struct i2c_client *client, pm_message_t msg) |
| { |
| return snd_soc_suspend_device(&client->dev); |
| } |
| |
| static int wm8753_i2c_resume(struct i2c_client *client) |
| { |
| return snd_soc_resume_device(&client->dev); |
| } |
| #else |
| #define wm8753_i2c_suspend NULL |
| #define wm8753_i2c_resume NULL |
| #endif |
| |
| static const struct i2c_device_id wm8753_i2c_id[] = { |
| { "wm8753", 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id); |
| |
| static struct i2c_driver wm8753_i2c_driver = { |
| .driver = { |
| .name = "wm8753", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wm8753_i2c_probe, |
| .remove = wm8753_i2c_remove, |
| .suspend = wm8753_i2c_suspend, |
| .resume = wm8753_i2c_resume, |
| .id_table = wm8753_i2c_id, |
| }; |
| #endif |
| |
| #if defined(CONFIG_SPI_MASTER) |
| static int wm8753_spi_write(struct spi_device *spi, const char *data, int len) |
| { |
| struct spi_transfer t; |
| struct spi_message m; |
| u8 msg[2]; |
| |
| if (len <= 0) |
| return 0; |
| |
| msg[0] = data[0]; |
| msg[1] = data[1]; |
| |
| spi_message_init(&m); |
| memset(&t, 0, (sizeof t)); |
| |
| t.tx_buf = &msg[0]; |
| t.len = len; |
| |
| spi_message_add_tail(&t, &m); |
| spi_sync(spi, &m); |
| |
| return len; |
| } |
| |
| static int __devinit wm8753_spi_probe(struct spi_device *spi) |
| { |
| struct snd_soc_codec *codec; |
| struct wm8753_priv *wm8753; |
| |
| wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); |
| if (wm8753 == NULL) |
| return -ENOMEM; |
| |
| codec = &wm8753->codec; |
| codec->control_data = spi; |
| codec->hw_write = (hw_write_t)wm8753_spi_write; |
| codec->dev = &spi->dev; |
| |
| dev_set_drvdata(&spi->dev, wm8753); |
| |
| return wm8753_register(wm8753); |
| } |
| |
| static int __devexit wm8753_spi_remove(struct spi_device *spi) |
| { |
| struct wm8753_priv *wm8753 = dev_get_drvdata(&spi->dev); |
| wm8753_unregister(wm8753); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int wm8753_spi_suspend(struct spi_device *spi, pm_message_t msg) |
| { |
| return snd_soc_suspend_device(&spi->dev); |
| } |
| |
| static int wm8753_spi_resume(struct spi_device *spi) |
| { |
| return snd_soc_resume_device(&spi->dev); |
| } |
| |
| #else |
| #define wm8753_spi_suspend NULL |
| #define wm8753_spi_resume NULL |
| #endif |
| |
| static struct spi_driver wm8753_spi_driver = { |
| .driver = { |
| .name = "wm8753", |
| .bus = &spi_bus_type, |
| .owner = THIS_MODULE, |
| }, |
| .probe = wm8753_spi_probe, |
| .remove = __devexit_p(wm8753_spi_remove), |
| .suspend = wm8753_spi_suspend, |
| .resume = wm8753_spi_resume, |
| }; |
| #endif |
| |
| static int __init wm8753_modinit(void) |
| { |
| int ret; |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| ret = i2c_add_driver(&wm8753_i2c_driver); |
| if (ret != 0) |
| pr_err("Failed to register WM8753 I2C driver: %d\n", ret); |
| #endif |
| #if defined(CONFIG_SPI_MASTER) |
| ret = spi_register_driver(&wm8753_spi_driver); |
| if (ret != 0) |
| pr_err("Failed to register WM8753 SPI driver: %d\n", ret); |
| #endif |
| return 0; |
| } |
| module_init(wm8753_modinit); |
| |
| static void __exit wm8753_exit(void) |
| { |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| i2c_del_driver(&wm8753_i2c_driver); |
| #endif |
| #if defined(CONFIG_SPI_MASTER) |
| spi_unregister_driver(&wm8753_spi_driver); |
| #endif |
| } |
| module_exit(wm8753_exit); |
| |
| MODULE_DESCRIPTION("ASoC WM8753 driver"); |
| MODULE_AUTHOR("Liam Girdwood"); |
| MODULE_LICENSE("GPL"); |