diff options
Diffstat (limited to 'sound/soc/codecs/wm9705.c')
| -rw-r--r-- | sound/soc/codecs/wm9705.c | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c new file mode 100644 index 000000000..5c6aebe29 --- /dev/null +++ b/sound/soc/codecs/wm9705.c @@ -0,0 +1,400 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * wm9705.c -- ALSA Soc WM9705 codec support + * + * Copyright 2008 Ian Molton <spyro@f2s.com> + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/mfd/wm97xx.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/ac97_codec.h> +#include <sound/ac97/codec.h> +#include <sound/ac97/compat.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#define WM9705_VENDOR_ID 0x574d4c05 +#define WM9705_VENDOR_ID_MASK 0xffffffff + +struct wm9705_priv { + struct snd_ac97 *ac97; + struct wm97xx_platform_data *mfd_pdata; +}; + +static const struct reg_default wm9705_reg_defaults[] = { + { 0x02, 0x8000 }, + { 0x04, 0x8000 }, + { 0x06, 0x8000 }, + { 0x0a, 0x8000 }, + { 0x0c, 0x8008 }, + { 0x0e, 0x8008 }, + { 0x10, 0x8808 }, + { 0x12, 0x8808 }, + { 0x14, 0x8808 }, + { 0x16, 0x8808 }, + { 0x18, 0x8808 }, + { 0x1a, 0x0000 }, + { 0x1c, 0x8000 }, + { 0x20, 0x0000 }, + { 0x22, 0x0000 }, + { 0x26, 0x000f }, + { 0x28, 0x0605 }, + { 0x2a, 0x0000 }, + { 0x2c, 0xbb80 }, + { 0x32, 0xbb80 }, + { 0x34, 0x2000 }, + { 0x5a, 0x0000 }, + { 0x5c, 0x0000 }, + { 0x72, 0x0808 }, + { 0x74, 0x0000 }, + { 0x76, 0x0006 }, + { 0x78, 0x0000 }, + { 0x7a, 0x0000 }, +}; + +static const struct regmap_config wm9705_regmap_config = { + .reg_bits = 16, + .reg_stride = 2, + .val_bits = 16, + .max_register = 0x7e, + .cache_type = REGCACHE_MAPLE, + + .volatile_reg = regmap_ac97_default_volatile, + + .reg_defaults = wm9705_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), +}; + +static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = { + SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), + SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), + SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), + SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), + SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), + SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), + SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), + SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), + SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1), + SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1), + SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1), + SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1), + SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1), + SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0), + SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0), + SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1), +}; + +static const char *wm9705_mic[] = {"Mic 1", "Mic 2"}; +static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC", + "Line", "Stereo Mix", "Mono Mix", "Phone"}; + +static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic, + AC97_GENERAL_PURPOSE, 8, wm9705_mic); +static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l, + AC97_REC_SEL, 8, wm9705_rec_sel); +static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r, + AC97_REC_SEL, 0, wm9705_rec_sel); + +/* Headphone Mixer */ +static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = { + SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1), + SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1), + SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1), + SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1), + SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1), +}; + +/* Mic source */ +static const struct snd_kcontrol_new wm9705_mic_src_controls = + SOC_DAPM_ENUM("Route", wm9705_enum_mic); + +/* Capture source */ +static const struct snd_kcontrol_new wm9705_capture_selectl_controls = + SOC_DAPM_ENUM("Route", wm9705_enum_rec_l); +static const struct snd_kcontrol_new wm9705_capture_selectr_controls = + SOC_DAPM_ENUM("Route", wm9705_enum_rec_r); + +/* DAPM widgets */ +static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = { + SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0, + &wm9705_mic_src_controls), + SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0, + &wm9705_capture_selectl_controls), + SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0, + &wm9705_capture_selectr_controls), + SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0, + &wm9705_hp_mixer_controls[0], + ARRAY_SIZE(wm9705_hp_mixer_controls)), + SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_OUTPUT("HPOUTL"), + SND_SOC_DAPM_OUTPUT("HPOUTR"), + SND_SOC_DAPM_OUTPUT("LOUT"), + SND_SOC_DAPM_OUTPUT("ROUT"), + SND_SOC_DAPM_OUTPUT("MONOOUT"), + SND_SOC_DAPM_INPUT("PHONE"), + SND_SOC_DAPM_INPUT("LINEINL"), + SND_SOC_DAPM_INPUT("LINEINR"), + SND_SOC_DAPM_INPUT("CDINL"), + SND_SOC_DAPM_INPUT("CDINR"), + SND_SOC_DAPM_INPUT("PCBEEP"), + SND_SOC_DAPM_INPUT("MIC1"), + SND_SOC_DAPM_INPUT("MIC2"), +}; + +/* Audio map + * WM9705 has no switches to disable the route from the inputs to the HP mixer + * so in order to prevent active inputs from forcing the audio outputs to be + * constantly enabled, we use the mutes on those inputs to simulate such + * controls. + */ +static const struct snd_soc_dapm_route wm9705_audio_map[] = { + /* HP mixer */ + {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"}, + {"HP Mixer", "CD Playback Switch", "CD PGA"}, + {"HP Mixer", "Mic Playback Switch", "Mic PGA"}, + {"HP Mixer", "Phone Playback Switch", "Phone PGA"}, + {"HP Mixer", "Line Playback Switch", "Line PGA"}, + {"HP Mixer", NULL, "Left DAC"}, + {"HP Mixer", NULL, "Right DAC"}, + + /* mono mixer */ + {"Mono Mixer", NULL, "HP Mixer"}, + + /* outputs */ + {"Headphone PGA", NULL, "HP Mixer"}, + {"HPOUTL", NULL, "Headphone PGA"}, + {"HPOUTR", NULL, "Headphone PGA"}, + {"Line out PGA", NULL, "HP Mixer"}, + {"LOUT", NULL, "Line out PGA"}, + {"ROUT", NULL, "Line out PGA"}, + {"Mono PGA", NULL, "Mono Mixer"}, + {"MONOOUT", NULL, "Mono PGA"}, + + /* inputs */ + {"CD PGA", NULL, "CDINL"}, + {"CD PGA", NULL, "CDINR"}, + {"Line PGA", NULL, "LINEINL"}, + {"Line PGA", NULL, "LINEINR"}, + {"Phone PGA", NULL, "PHONE"}, + {"Mic Source", "Mic 1", "MIC1"}, + {"Mic Source", "Mic 2", "MIC2"}, + {"Mic PGA", NULL, "Mic Source"}, + {"PCBEEP PGA", NULL, "PCBEEP"}, + + /* Left capture selector */ + {"Left Capture Source", "Mic", "Mic Source"}, + {"Left Capture Source", "CD", "CDINL"}, + {"Left Capture Source", "Line", "LINEINL"}, + {"Left Capture Source", "Stereo Mix", "HP Mixer"}, + {"Left Capture Source", "Mono Mix", "HP Mixer"}, + {"Left Capture Source", "Phone", "PHONE"}, + + /* Right capture source */ + {"Right Capture Source", "Mic", "Mic Source"}, + {"Right Capture Source", "CD", "CDINR"}, + {"Right Capture Source", "Line", "LINEINR"}, + {"Right Capture Source", "Stereo Mix", "HP Mixer"}, + {"Right Capture Source", "Mono Mix", "HP Mixer"}, + {"Right Capture Source", "Phone", "PHONE"}, + + {"ADC PGA", NULL, "Left Capture Source"}, + {"ADC PGA", NULL, "Right Capture Source"}, + + /* ADC's */ + {"Left ADC", NULL, "ADC PGA"}, + {"Right ADC", NULL, "ADC PGA"}, +}; + +static int ac97_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int reg; + + snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x1, 0x1); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg = AC97_PCM_FRONT_DAC_RATE; + else + reg = AC97_PCM_LR_ADC_RATE; + + return snd_soc_component_write(component, reg, substream->runtime->rate); +} + +#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000) + +static const struct snd_soc_dai_ops wm9705_dai_ops = { + .prepare = ac97_prepare, +}; + +static struct snd_soc_dai_driver wm9705_dai[] = { + { + .name = "wm9705-hifi", + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = WM9705_AC97_RATES, + .formats = SND_SOC_STD_AC97_FMTS, + }, + .capture = { + .stream_name = "HiFi Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM9705_AC97_RATES, + .formats = SND_SOC_STD_AC97_FMTS, + }, + .ops = &wm9705_dai_ops, + }, + { + .name = "wm9705-aux", + .playback = { + .stream_name = "Aux Playback", + .channels_min = 1, + .channels_max = 1, + .rates = WM9705_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + } +}; + +#ifdef CONFIG_PM +static int wm9705_soc_suspend(struct snd_soc_component *component) +{ + regcache_cache_bypass(component->regmap, true); + snd_soc_component_write(component, AC97_POWERDOWN, 0xffff); + regcache_cache_bypass(component->regmap, false); + + return 0; +} + +static int wm9705_soc_resume(struct snd_soc_component *component) +{ + struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); + int ret; + + ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID, + WM9705_VENDOR_ID_MASK); + if (ret < 0) + return ret; + + snd_soc_component_cache_sync(component); + + return 0; +} +#else +#define wm9705_soc_suspend NULL +#define wm9705_soc_resume NULL +#endif + +static int wm9705_soc_probe(struct snd_soc_component *component) +{ + struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); + struct regmap *regmap; + + if (wm9705->mfd_pdata) { + wm9705->ac97 = wm9705->mfd_pdata->ac97; + regmap = wm9705->mfd_pdata->regmap; + } else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) { + wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID, + WM9705_VENDOR_ID_MASK); + if (IS_ERR(wm9705->ac97)) { + dev_err(component->dev, "Failed to register AC97 codec\n"); + return PTR_ERR(wm9705->ac97); + } + + regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config); + if (IS_ERR(regmap)) { + snd_soc_free_ac97_component(wm9705->ac97); + return PTR_ERR(regmap); + } + } else { + return -ENXIO; + } + + snd_soc_component_set_drvdata(component, wm9705->ac97); + snd_soc_component_init_regmap(component, regmap); + + return 0; +} + +static void wm9705_soc_remove(struct snd_soc_component *component) +{ + struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); + + if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) { + snd_soc_component_exit_regmap(component); + snd_soc_free_ac97_component(wm9705->ac97); + } +} + +static const struct snd_soc_component_driver soc_component_dev_wm9705 = { + .probe = wm9705_soc_probe, + .remove = wm9705_soc_remove, + .suspend = wm9705_soc_suspend, + .resume = wm9705_soc_resume, + .controls = wm9705_snd_ac97_controls, + .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls), + .dapm_widgets = wm9705_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets), + .dapm_routes = wm9705_audio_map, + .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static int wm9705_probe(struct platform_device *pdev) +{ + struct wm9705_priv *wm9705; + + wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL); + if (wm9705 == NULL) + return -ENOMEM; + + wm9705->mfd_pdata = dev_get_platdata(&pdev->dev); + platform_set_drvdata(pdev, wm9705); + + return devm_snd_soc_register_component(&pdev->dev, + &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai)); +} + +static struct platform_driver wm9705_codec_driver = { + .driver = { + .name = "wm9705-codec", + }, + + .probe = wm9705_probe, +}; + +module_platform_driver(wm9705_codec_driver); + +MODULE_DESCRIPTION("ASoC WM9705 driver"); +MODULE_AUTHOR("Ian Molton"); +MODULE_LICENSE("GPL v2"); |