// SPDX-License-Identifier: GPL-2.0-only /* * wm8962.c -- WM8962 ALSA SoC Audio driver * * Copyright 2010-2 Wolfson Microelectronics plc * * Author: Mark Brown <[email protected]> */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/gcd.h> #include <linux/gpio/driver.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/mutex.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/initval.h> #include <sound/tlv.h> #include <sound/wm8962.h> #include <trace/events/asoc.h> #include "wm8962.h" #define WM8962_NUM_SUPPLIES … static const char *wm8962_supply_names[WM8962_NUM_SUPPLIES] = …; /* codec private data */ struct wm8962_priv { … }; /* We can't use the same notifier block for more than one supply and * there's no way I can see to get from a callback to the caller * except container_of(). */ #define WM8962_REGULATOR_EVENT(n) … WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) WM8962_REGULATOR_EVENT(…) static const struct reg_default wm8962_reg[] = …; static bool wm8962_volatile_register(struct device *dev, unsigned int reg) { … } static bool wm8962_readable_register(struct device *dev, unsigned int reg) { … } static int wm8962_reset(struct wm8962_priv *wm8962) { … } static const DECLARE_TLV_DB_SCALE(inpga_tlv, -2325, 75, 0); static const DECLARE_TLV_DB_SCALE(mixin_tlv, -1500, 300, 0); static const DECLARE_TLV_DB_RANGE(mixinpga_tlv, 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0), 2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0), 3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0), 5, 5, TLV_DB_SCALE_ITEM(2400, 0, 0), 6, 7, TLV_DB_SCALE_ITEM(2700, 300, 0) ); static const DECLARE_TLV_DB_SCALE(beep_tlv, -9600, 600, 1); static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); static const DECLARE_TLV_DB_SCALE(st_tlv, -3600, 300, 0); static const DECLARE_TLV_DB_SCALE(inmix_tlv, -600, 600, 0); static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); static const DECLARE_TLV_DB_SCALE(hp_tlv, -700, 100, 0); static const DECLARE_TLV_DB_RANGE(classd_tlv, 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0) ); static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); static int wm8962_dsp2_write_config(struct snd_soc_component *component) { … } static int wm8962_dsp2_set_enable(struct snd_soc_component *component, u16 val) { … } static int wm8962_dsp2_start(struct snd_soc_component *component) { … } static int wm8962_dsp2_stop(struct snd_soc_component *component) { … } #define WM8962_DSP2_ENABLE(xname, xshift) … static int wm8962_dsp2_ena_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int wm8962_dsp2_ena_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int wm8962_dsp2_ena_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* The VU bits for the headphones are in a different register to the mute * bits and only take effect on the PGA if it is actually powered. */ static int wm8962_put_hp_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* The VU bits for the speakers are in a different register to the mute * bits and only take effect on the PGA if it is actually powered. */ static int wm8962_put_spk_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const char *cap_hpf_mode_text[] = …; static SOC_ENUM_SINGLE_DECL(cap_hpf_mode, WM8962_ADC_DAC_CONTROL_2, 10, cap_hpf_mode_text); static const char *cap_lhpf_mode_text[] = …; static SOC_ENUM_SINGLE_DECL(cap_lhpf_mode, WM8962_LHPF1, 1, cap_lhpf_mode_text); static const struct snd_kcontrol_new wm8962_snd_controls[] = …; static const struct snd_kcontrol_new wm8962_spk_mono_controls[] = …; static const struct snd_kcontrol_new wm8962_spk_stereo_controls[] = …; static int tp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int cp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } /* VU bits for the output PGAs only take effect while the PGA is powered */ static int out_pga_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static int dsp2_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { … } static const char *st_text[] = …; static SOC_ENUM_SINGLE_DECL(str_enum, WM8962_DAC_DSP_MIXING_1, 2, st_text); static const struct snd_kcontrol_new str_mux = …; static SOC_ENUM_SINGLE_DECL(stl_enum, WM8962_DAC_DSP_MIXING_2, 2, st_text); static const struct snd_kcontrol_new stl_mux = …; static const char *outmux_text[] = …; static SOC_ENUM_SINGLE_DECL(spkoutr_enum, WM8962_SPEAKER_MIXER_2, 7, outmux_text); static const struct snd_kcontrol_new spkoutr_mux = …; static SOC_ENUM_SINGLE_DECL(spkoutl_enum, WM8962_SPEAKER_MIXER_1, 7, outmux_text); static const struct snd_kcontrol_new spkoutl_mux = …; static SOC_ENUM_SINGLE_DECL(hpoutr_enum, WM8962_HEADPHONE_MIXER_2, 7, outmux_text); static const struct snd_kcontrol_new hpoutr_mux = …; static SOC_ENUM_SINGLE_DECL(hpoutl_enum, WM8962_HEADPHONE_MIXER_1, 7, outmux_text); static const struct snd_kcontrol_new hpoutl_mux = …; static const char * const input_mode_text[] = …; static SOC_ENUM_SINGLE_VIRT_DECL(input_mode_enum, input_mode_text); static const struct snd_kcontrol_new input_mode_mux = …; static const struct snd_kcontrol_new inpgal[] = …; static const struct snd_kcontrol_new inpgar[] = …; static const struct snd_kcontrol_new mixinl[] = …; static const struct snd_kcontrol_new mixinr[] = …; static const struct snd_kcontrol_new hpmixl[] = …; static const struct snd_kcontrol_new hpmixr[] = …; static const struct snd_kcontrol_new spkmixl[] = …; static const struct snd_kcontrol_new spkmixr[] = …; static const struct snd_soc_dapm_widget wm8962_dapm_widgets[] = …; static const struct snd_soc_dapm_widget wm8962_dapm_spk_mono_widgets[] = …; static const struct snd_soc_dapm_widget wm8962_dapm_spk_stereo_widgets[] = …; static const struct snd_soc_dapm_route wm8962_intercon[] = …; static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = …; static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = …; static int wm8962_add_widgets(struct snd_soc_component *component) { … } /* -1 for reserved values */ static const int bclk_divs[] = …; static const int sysclk_rates[] = …; static void wm8962_configure_bclk(struct snd_soc_component *component) { … } static int wm8962_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { … } static const struct { … } sr_vals[] = …; static int wm8962_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { … } static int wm8962_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { … } static int wm8962_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { … } struct _fll_div { … }; /* The size in bits of the FLL divide multiplied by 10 * to allow rounding later */ #define FIXED_FLL_SIZE … static struct { … } fll_fratios[] = …; static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, unsigned int Fout) { … } static int wm8962_set_fll(struct snd_soc_component *component, int fll_id, int source, unsigned int Fref, unsigned int Fout) { … } static int wm8962_mute(struct snd_soc_dai *dai, int mute, int direction) { … } #define WM8962_RATES … #define WM8962_FORMATS … static const struct snd_soc_dai_ops wm8962_dai_ops = …; static struct snd_soc_dai_driver wm8962_dai = …; static void wm8962_mic_work(struct work_struct *work) { … } static irqreturn_t wm8962_irq(int irq, void *data) { … } /** * wm8962_mic_detect - Enable microphone detection via the WM8962 IRQ * * @component: WM8962 component * @jack: jack to report detection events on * * Enable microphone detection via IRQ on the WM8962. If GPIOs are * being used to bring out signals to the processor then only platform * data configuration is needed for WM8962 and processor GPIOs should * be configured using snd_soc_jack_add_gpios() instead. * * If no jack is supplied detection will be disabled. */ int wm8962_mic_detect(struct snd_soc_component *component, struct snd_soc_jack *jack) { … } EXPORT_SYMBOL_GPL(…); static int beep_rates[] = …; static void wm8962_beep_work(struct work_struct *work) { … } /* For usability define a way of injecting beep events for the device - * many systems will not have a keyboard. */ static int wm8962_beep_event(struct input_dev *dev, unsigned int type, unsigned int code, int hz) { … } static ssize_t beep_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_WO(beep); static void wm8962_init_beep(struct snd_soc_component *component) { … } static void wm8962_free_beep(struct snd_soc_component *component) { … } static void wm8962_set_gpio_mode(struct wm8962_priv *wm8962, int gpio) { … } #ifdef CONFIG_GPIOLIB static int wm8962_gpio_request(struct gpio_chip *chip, unsigned offset) { … } static void wm8962_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { … } static int wm8962_gpio_direction_out(struct gpio_chip *chip, unsigned offset, int value) { … } static const struct gpio_chip wm8962_template_chip = …; static void wm8962_init_gpio(struct snd_soc_component *component) { … } static void wm8962_free_gpio(struct snd_soc_component *component) { … } #else static void wm8962_init_gpio(struct snd_soc_component *component) { } static void wm8962_free_gpio(struct snd_soc_component *component) { } #endif static int wm8962_probe(struct snd_soc_component *component) { … } static void wm8962_remove(struct snd_soc_component *component) { … } static const struct snd_soc_component_driver soc_component_dev_wm8962 = …; /* Improve power consumption for IN4 DC measurement mode */ static const struct reg_sequence wm8962_dc_measure[] = …; static const struct regmap_config wm8962_regmap = …; static int wm8962_set_pdata_from_of(struct i2c_client *i2c, struct wm8962_pdata *pdata) { … } static int wm8962_i2c_probe(struct i2c_client *i2c) { … } static void wm8962_i2c_remove(struct i2c_client *client) { … } #ifdef CONFIG_PM static int wm8962_runtime_resume(struct device *dev) { … } static int wm8962_runtime_suspend(struct device *dev) { … } #endif static const struct dev_pm_ops wm8962_pm = …; static const struct i2c_device_id wm8962_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, wm8962_i2c_id); static const struct of_device_id wm8962_of_match[] = …; MODULE_DEVICE_TABLE(of, wm8962_of_match); static struct i2c_driver wm8962_i2c_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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