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400 lines
12 KiB
400 lines
12 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* wm9705.c -- ALSA Soc WM9705 codec support |
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* |
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* Copyright 2008 Ian Molton <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/mfd/wm97xx.h> |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/device.h> |
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#include <linux/regmap.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/ac97_codec.h> |
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#include <sound/ac97/codec.h> |
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#include <sound/ac97/compat.h> |
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#include <sound/initval.h> |
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#include <sound/soc.h> |
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#define WM9705_VENDOR_ID 0x574d4c05 |
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#define WM9705_VENDOR_ID_MASK 0xffffffff |
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struct wm9705_priv { |
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struct snd_ac97 *ac97; |
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struct wm97xx_platform_data *mfd_pdata; |
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}; |
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static const struct reg_default wm9705_reg_defaults[] = { |
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{ 0x02, 0x8000 }, |
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{ 0x04, 0x8000 }, |
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{ 0x06, 0x8000 }, |
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{ 0x0a, 0x8000 }, |
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{ 0x0c, 0x8008 }, |
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{ 0x0e, 0x8008 }, |
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{ 0x10, 0x8808 }, |
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{ 0x12, 0x8808 }, |
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{ 0x14, 0x8808 }, |
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{ 0x16, 0x8808 }, |
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{ 0x18, 0x8808 }, |
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{ 0x1a, 0x0000 }, |
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{ 0x1c, 0x8000 }, |
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{ 0x20, 0x0000 }, |
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{ 0x22, 0x0000 }, |
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{ 0x26, 0x000f }, |
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{ 0x28, 0x0605 }, |
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{ 0x2a, 0x0000 }, |
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{ 0x2c, 0xbb80 }, |
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{ 0x32, 0xbb80 }, |
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{ 0x34, 0x2000 }, |
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{ 0x5a, 0x0000 }, |
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{ 0x5c, 0x0000 }, |
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{ 0x72, 0x0808 }, |
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{ 0x74, 0x0000 }, |
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{ 0x76, 0x0006 }, |
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{ 0x78, 0x0000 }, |
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{ 0x7a, 0x0000 }, |
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}; |
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static const struct regmap_config wm9705_regmap_config = { |
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.reg_bits = 16, |
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.reg_stride = 2, |
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.val_bits = 16, |
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.max_register = 0x7e, |
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.cache_type = REGCACHE_RBTREE, |
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.volatile_reg = regmap_ac97_default_volatile, |
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.reg_defaults = wm9705_reg_defaults, |
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.num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), |
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}; |
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static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = { |
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SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), |
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SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), |
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SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), |
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SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), |
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SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), |
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SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), |
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SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), |
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SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), |
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SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1), |
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SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1), |
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SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1), |
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SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1), |
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SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1), |
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SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0), |
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SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0), |
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SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1), |
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}; |
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static const char *wm9705_mic[] = {"Mic 1", "Mic 2"}; |
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static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC", |
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"Line", "Stereo Mix", "Mono Mix", "Phone"}; |
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static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic, |
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AC97_GENERAL_PURPOSE, 8, wm9705_mic); |
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static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l, |
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AC97_REC_SEL, 8, wm9705_rec_sel); |
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static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r, |
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AC97_REC_SEL, 0, wm9705_rec_sel); |
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/* Headphone Mixer */ |
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static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = { |
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SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1), |
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SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1), |
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SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1), |
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SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1), |
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SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1), |
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}; |
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/* Mic source */ |
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static const struct snd_kcontrol_new wm9705_mic_src_controls = |
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SOC_DAPM_ENUM("Route", wm9705_enum_mic); |
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/* Capture source */ |
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static const struct snd_kcontrol_new wm9705_capture_selectl_controls = |
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SOC_DAPM_ENUM("Route", wm9705_enum_rec_l); |
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static const struct snd_kcontrol_new wm9705_capture_selectr_controls = |
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SOC_DAPM_ENUM("Route", wm9705_enum_rec_r); |
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/* DAPM widgets */ |
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static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = { |
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SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0, |
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&wm9705_mic_src_controls), |
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SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0, |
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&wm9705_capture_selectl_controls), |
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SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0, |
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&wm9705_capture_selectr_controls), |
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SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0, |
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&wm9705_hp_mixer_controls[0], |
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ARRAY_SIZE(wm9705_hp_mixer_controls)), |
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SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_OUTPUT("HPOUTL"), |
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SND_SOC_DAPM_OUTPUT("HPOUTR"), |
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SND_SOC_DAPM_OUTPUT("LOUT"), |
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SND_SOC_DAPM_OUTPUT("ROUT"), |
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SND_SOC_DAPM_OUTPUT("MONOOUT"), |
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SND_SOC_DAPM_INPUT("PHONE"), |
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SND_SOC_DAPM_INPUT("LINEINL"), |
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SND_SOC_DAPM_INPUT("LINEINR"), |
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SND_SOC_DAPM_INPUT("CDINL"), |
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SND_SOC_DAPM_INPUT("CDINR"), |
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SND_SOC_DAPM_INPUT("PCBEEP"), |
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SND_SOC_DAPM_INPUT("MIC1"), |
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SND_SOC_DAPM_INPUT("MIC2"), |
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}; |
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/* Audio map |
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* WM9705 has no switches to disable the route from the inputs to the HP mixer |
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* so in order to prevent active inputs from forcing the audio outputs to be |
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* constantly enabled, we use the mutes on those inputs to simulate such |
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* controls. |
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*/ |
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static const struct snd_soc_dapm_route wm9705_audio_map[] = { |
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/* HP mixer */ |
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{"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"}, |
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{"HP Mixer", "CD Playback Switch", "CD PGA"}, |
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{"HP Mixer", "Mic Playback Switch", "Mic PGA"}, |
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{"HP Mixer", "Phone Playback Switch", "Phone PGA"}, |
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{"HP Mixer", "Line Playback Switch", "Line PGA"}, |
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{"HP Mixer", NULL, "Left DAC"}, |
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{"HP Mixer", NULL, "Right DAC"}, |
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/* mono mixer */ |
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{"Mono Mixer", NULL, "HP Mixer"}, |
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/* outputs */ |
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{"Headphone PGA", NULL, "HP Mixer"}, |
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{"HPOUTL", NULL, "Headphone PGA"}, |
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{"HPOUTR", NULL, "Headphone PGA"}, |
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{"Line out PGA", NULL, "HP Mixer"}, |
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{"LOUT", NULL, "Line out PGA"}, |
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{"ROUT", NULL, "Line out PGA"}, |
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{"Mono PGA", NULL, "Mono Mixer"}, |
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{"MONOOUT", NULL, "Mono PGA"}, |
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/* inputs */ |
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{"CD PGA", NULL, "CDINL"}, |
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{"CD PGA", NULL, "CDINR"}, |
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{"Line PGA", NULL, "LINEINL"}, |
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{"Line PGA", NULL, "LINEINR"}, |
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{"Phone PGA", NULL, "PHONE"}, |
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{"Mic Source", "Mic 1", "MIC1"}, |
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{"Mic Source", "Mic 2", "MIC2"}, |
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{"Mic PGA", NULL, "Mic Source"}, |
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{"PCBEEP PGA", NULL, "PCBEEP"}, |
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/* Left capture selector */ |
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{"Left Capture Source", "Mic", "Mic Source"}, |
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{"Left Capture Source", "CD", "CDINL"}, |
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{"Left Capture Source", "Line", "LINEINL"}, |
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{"Left Capture Source", "Stereo Mix", "HP Mixer"}, |
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{"Left Capture Source", "Mono Mix", "HP Mixer"}, |
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{"Left Capture Source", "Phone", "PHONE"}, |
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/* Right capture source */ |
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{"Right Capture Source", "Mic", "Mic Source"}, |
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{"Right Capture Source", "CD", "CDINR"}, |
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{"Right Capture Source", "Line", "LINEINR"}, |
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{"Right Capture Source", "Stereo Mix", "HP Mixer"}, |
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{"Right Capture Source", "Mono Mix", "HP Mixer"}, |
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{"Right Capture Source", "Phone", "PHONE"}, |
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{"ADC PGA", NULL, "Left Capture Source"}, |
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{"ADC PGA", NULL, "Right Capture Source"}, |
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/* ADC's */ |
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{"Left ADC", NULL, "ADC PGA"}, |
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{"Right ADC", NULL, "ADC PGA"}, |
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}; |
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static int ac97_prepare(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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int reg; |
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snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x1, 0x1); |
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
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reg = AC97_PCM_FRONT_DAC_RATE; |
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else |
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reg = AC97_PCM_LR_ADC_RATE; |
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return snd_soc_component_write(component, reg, substream->runtime->rate); |
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} |
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#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \ |
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SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ |
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SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ |
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SNDRV_PCM_RATE_48000) |
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static const struct snd_soc_dai_ops wm9705_dai_ops = { |
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.prepare = ac97_prepare, |
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}; |
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static struct snd_soc_dai_driver wm9705_dai[] = { |
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{ |
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.name = "wm9705-hifi", |
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.playback = { |
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.stream_name = "HiFi Playback", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = WM9705_AC97_RATES, |
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.formats = SND_SOC_STD_AC97_FMTS, |
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}, |
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.capture = { |
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.stream_name = "HiFi Capture", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = WM9705_AC97_RATES, |
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.formats = SND_SOC_STD_AC97_FMTS, |
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}, |
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.ops = &wm9705_dai_ops, |
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}, |
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{ |
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.name = "wm9705-aux", |
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.playback = { |
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.stream_name = "Aux Playback", |
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.channels_min = 1, |
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.channels_max = 1, |
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.rates = WM9705_AC97_RATES, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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} |
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}; |
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#ifdef CONFIG_PM |
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static int wm9705_soc_suspend(struct snd_soc_component *component) |
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{ |
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regcache_cache_bypass(component->regmap, true); |
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snd_soc_component_write(component, AC97_POWERDOWN, 0xffff); |
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regcache_cache_bypass(component->regmap, false); |
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return 0; |
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} |
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static int wm9705_soc_resume(struct snd_soc_component *component) |
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{ |
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struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
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int ret; |
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ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID, |
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WM9705_VENDOR_ID_MASK); |
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if (ret < 0) |
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return ret; |
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snd_soc_component_cache_sync(component); |
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return 0; |
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} |
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#else |
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#define wm9705_soc_suspend NULL |
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#define wm9705_soc_resume NULL |
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#endif |
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static int wm9705_soc_probe(struct snd_soc_component *component) |
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{ |
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struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
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struct regmap *regmap; |
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if (wm9705->mfd_pdata) { |
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wm9705->ac97 = wm9705->mfd_pdata->ac97; |
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regmap = wm9705->mfd_pdata->regmap; |
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} else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) { |
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wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID, |
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WM9705_VENDOR_ID_MASK); |
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if (IS_ERR(wm9705->ac97)) { |
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dev_err(component->dev, "Failed to register AC97 codec\n"); |
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return PTR_ERR(wm9705->ac97); |
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} |
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regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config); |
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if (IS_ERR(regmap)) { |
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snd_soc_free_ac97_component(wm9705->ac97); |
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return PTR_ERR(regmap); |
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} |
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} else { |
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return -ENXIO; |
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} |
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snd_soc_component_set_drvdata(component, wm9705->ac97); |
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snd_soc_component_init_regmap(component, regmap); |
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return 0; |
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} |
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static void wm9705_soc_remove(struct snd_soc_component *component) |
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{ |
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struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
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if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) { |
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snd_soc_component_exit_regmap(component); |
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snd_soc_free_ac97_component(wm9705->ac97); |
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} |
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} |
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static const struct snd_soc_component_driver soc_component_dev_wm9705 = { |
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.probe = wm9705_soc_probe, |
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.remove = wm9705_soc_remove, |
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.suspend = wm9705_soc_suspend, |
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.resume = wm9705_soc_resume, |
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.controls = wm9705_snd_ac97_controls, |
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.num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls), |
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.dapm_widgets = wm9705_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets), |
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.dapm_routes = wm9705_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(wm9705_audio_map), |
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.idle_bias_on = 1, |
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.use_pmdown_time = 1, |
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.endianness = 1, |
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}; |
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static int wm9705_probe(struct platform_device *pdev) |
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{ |
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struct wm9705_priv *wm9705; |
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wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL); |
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if (wm9705 == NULL) |
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return -ENOMEM; |
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wm9705->mfd_pdata = dev_get_platdata(&pdev->dev); |
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platform_set_drvdata(pdev, wm9705); |
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return devm_snd_soc_register_component(&pdev->dev, |
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&soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai)); |
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} |
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static struct platform_driver wm9705_codec_driver = { |
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.driver = { |
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.name = "wm9705-codec", |
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}, |
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.probe = wm9705_probe, |
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}; |
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module_platform_driver(wm9705_codec_driver); |
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MODULE_DESCRIPTION("ASoC WM9705 driver"); |
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MODULE_AUTHOR("Ian Molton"); |
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MODULE_LICENSE("GPL v2");
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