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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * wm9705.c -- ALSA Soc WM9705 codec support
- *
- * Copyright 2008 Ian Molton <[email protected]>
- */
- #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_RBTREE,
- .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");
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