415 lines
12 KiB
C
415 lines
12 KiB
C
/*
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* wm9705.c -- ALSA Soc WM9705 codec support
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*
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* Copyright 2008 Ian Molton <spyro@f2s.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; Version 2 of the License only.
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*
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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_codec *codec = dai->codec;
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int reg;
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snd_soc_update_bits(codec, 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_write(codec, 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_codec *codec)
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{
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regcache_cache_bypass(codec->component.regmap, true);
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snd_soc_write(codec, AC97_POWERDOWN, 0xffff);
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regcache_cache_bypass(codec->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_codec *codec)
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{
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struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
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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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regcache_sync(codec->component.regmap);
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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_codec *codec)
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{
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struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
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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 {
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#ifdef CONFIG_SND_SOC_AC97_BUS
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wm9705->ac97 = snd_soc_new_ac97_codec(codec, 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(codec->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_codec(wm9705->ac97);
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return PTR_ERR(regmap);
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}
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#endif
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}
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snd_soc_codec_set_drvdata(codec, wm9705->ac97);
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snd_soc_codec_init_regmap(codec, regmap);
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return 0;
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}
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static int wm9705_soc_remove(struct snd_soc_codec *codec)
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{
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#ifdef CONFIG_SND_SOC_AC97_BUS
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struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
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if (!wm9705->mfd_pdata) {
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snd_soc_codec_exit_regmap(codec);
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snd_soc_free_ac97_codec(wm9705->ac97);
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}
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#endif
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return 0;
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}
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static const struct snd_soc_codec_driver soc_codec_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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.component_driver = {
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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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},
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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 snd_soc_register_codec(&pdev->dev,
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&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
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}
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static int wm9705_remove(struct platform_device *pdev)
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{
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snd_soc_unregister_codec(&pdev->dev);
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return 0;
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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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.remove = wm9705_remove,
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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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