131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0
|
|
*
|
|
* soc-jack.h
|
|
*
|
|
* Copyright (C) 2019 Renesas Electronics Corp.
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
*/
|
|
#ifndef __SOC_JACK_H
|
|
#define __SOC_JACK_H
|
|
|
|
/**
|
|
* struct snd_soc_jack_pin - Describes a pin to update based on jack detection
|
|
*
|
|
* @pin: name of the pin to update
|
|
* @mask: bits to check for in reported jack status
|
|
* @invert: if non-zero then pin is enabled when status is not reported
|
|
* @list: internal list entry
|
|
*/
|
|
struct snd_soc_jack_pin {
|
|
struct list_head list;
|
|
const char *pin;
|
|
int mask;
|
|
bool invert;
|
|
};
|
|
|
|
/**
|
|
* struct snd_soc_jack_zone - Describes voltage zones of jack detection
|
|
*
|
|
* @min_mv: start voltage in mv
|
|
* @max_mv: end voltage in mv
|
|
* @jack_type: type of jack that is expected for this voltage
|
|
* @debounce_time: debounce_time for jack, codec driver should wait for this
|
|
* duration before reading the adc for voltages
|
|
* @list: internal list entry
|
|
*/
|
|
struct snd_soc_jack_zone {
|
|
unsigned int min_mv;
|
|
unsigned int max_mv;
|
|
unsigned int jack_type;
|
|
unsigned int debounce_time;
|
|
struct list_head list;
|
|
};
|
|
|
|
/**
|
|
* struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
|
|
*
|
|
* @idx: gpio descriptor index within the function of the GPIO
|
|
* consumer device
|
|
* @gpiod_dev: GPIO consumer device
|
|
* @name: gpio name. Also as connection ID for the GPIO consumer
|
|
* device function name lookup
|
|
* @report: value to report when jack detected
|
|
* @invert: report presence in low state
|
|
* @debounce_time: debounce time in ms
|
|
* @wake: enable as wake source
|
|
* @jack_status_check: callback function which overrides the detection
|
|
* to provide more complex checks (eg, reading an
|
|
* ADC).
|
|
*/
|
|
struct snd_soc_jack_gpio {
|
|
unsigned int idx;
|
|
struct device *gpiod_dev;
|
|
const char *name;
|
|
int report;
|
|
int invert;
|
|
int debounce_time;
|
|
bool wake;
|
|
|
|
/* private: */
|
|
struct snd_soc_jack *jack;
|
|
struct delayed_work work;
|
|
struct notifier_block pm_notifier;
|
|
struct gpio_desc *desc;
|
|
|
|
void *data;
|
|
/* public: */
|
|
int (*jack_status_check)(void *data);
|
|
};
|
|
|
|
struct snd_soc_jack {
|
|
struct mutex mutex;
|
|
struct snd_jack *jack;
|
|
struct snd_soc_card *card;
|
|
struct list_head pins;
|
|
int status;
|
|
struct blocking_notifier_head notifier;
|
|
struct list_head jack_zones;
|
|
};
|
|
|
|
/* Jack reporting */
|
|
void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
|
|
int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_pin *pins);
|
|
void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
|
|
struct notifier_block *nb);
|
|
void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
|
|
struct notifier_block *nb);
|
|
int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_zone *zones);
|
|
int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
|
|
#ifdef CONFIG_GPIOLIB
|
|
int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_gpio *gpios);
|
|
int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
|
|
struct snd_soc_jack *jack,
|
|
int count, struct snd_soc_jack_gpio *gpios);
|
|
void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_gpio *gpios);
|
|
#else
|
|
static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_gpio *gpios)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
|
|
struct snd_soc_jack *jack,
|
|
int count,
|
|
struct snd_soc_jack_gpio *gpios)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
|
|
struct snd_soc_jack_gpio *gpios)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif /* __SOC_JACK_H */
|