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-rw-r--r--sound/soc/codecs/wm9705.c400
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 0000000000..5c6aebe29c
--- /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");