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/* SPDX-License-Identifier: GPL-2.0
*
* CS35L41 ALSA HDA audio driver
*
* Copyright 2021 Cirrus Logic, Inc.
*
* Author: Lucas Tanure <tanureal@opensource.cirrus.com>
*/
#ifndef __CS35L41_HDA_H__
#define __CS35L41_HDA_H__
#include <linux/acpi.h>
#include <linux/efi.h>
#include <linux/regulator/consumer.h>
#include <linux/gpio/consumer.h>
#include <linux/device.h>
#include <sound/cs35l41.h>
#include <sound/cs-amp-lib.h>
#include <linux/firmware/cirrus/cs_dsp.h>
#include <linux/firmware/cirrus/wmfw.h>
#define CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ 1000000
#define DEFAULT_AMP_GAIN_PCM 17 /* 17.5dB Gain */
#define DEFAULT_AMP_GAIN_PDM 19 /* 19.5dB Gain */
struct cs35l41_amp_cal_data {
u32 calTarget[2];
u32 calTime[2];
s8 calAmbient;
u8 calStatus;
u16 calR;
} __packed;
struct cs35l41_amp_efi_data {
u32 size;
u32 count;
struct cs35l41_amp_cal_data data[];
} __packed;
enum cs35l41_hda_spk_pos {
CS35L41_LEFT,
CS35L41_RIGHT,
};
enum cs35l41_hda_gpio_function {
CS35L41_NOT_USED,
CS35l41_VSPK_SWITCH,
CS35L41_INTERRUPT,
CS35l41_SYNC,
};
enum control_bus {
I2C,
SPI
};
struct cs35l41_hda {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *reset_gpio;
struct gpio_desc *cs_gpio;
struct cs35l41_hw_cfg hw_cfg;
struct hda_codec *codec;
int irq;
int index;
int channel_index;
unsigned volatile long irq_errors;
const char *amp_name;
const char *acpi_subsystem_id;
int firmware_type;
int speaker_id;
struct mutex fw_mutex;
struct work_struct fw_load_work;
struct regmap_irq_chip_data *irq_data;
bool firmware_running;
bool request_fw_load;
bool fw_request_ongoing;
bool halo_initialized;
bool playback_started;
struct cs_dsp cs_dsp;
struct acpi_device *dacpi;
bool mute_override;
enum control_bus control_bus;
bool bypass_fw;
unsigned int tuning_gain;
struct cirrus_amp_cal_data cal_data;
bool cal_data_valid;
};
enum halo_state {
HALO_STATE_CODE_INIT_DOWNLOAD = 0,
HALO_STATE_CODE_START,
HALO_STATE_CODE_RUN
};
extern const struct dev_pm_ops cs35l41_hda_pm_ops;
int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
struct regmap *regmap, enum control_bus control_bus);
void cs35l41_hda_remove(struct device *dev);
int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id);
int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id);
#endif /*__CS35L41_HDA_H__*/
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