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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/hda/codecs/side-codecs/cs35l41_hda.h
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/* SPDX-License-Identifier: GPL-2.0

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 *

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 * CS35L41 ALSA HDA audio driver

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 *

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 * Copyright 2021 Cirrus Logic, Inc.

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 *

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 * Author: Lucas Tanure <[email protected]>

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 */

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#ifndef __CS35L41_HDA_H__

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#define __CS35L41_HDA_H__

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#include <linux/acpi.h>

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#include <linux/efi.h>

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#include <linux/regulator/consumer.h>

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#include <linux/gpio/consumer.h>

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#include <linux/device.h>

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#include <sound/cs35l41.h>

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#include <sound/cs-amp-lib.h>

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#include <linux/firmware/cirrus/cs_dsp.h>

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#include <linux/firmware/cirrus/wmfw.h>

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#define CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ	1000000

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#define DEFAULT_AMP_GAIN_PCM			17	/* 17.5dB Gain */

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#define DEFAULT_AMP_GAIN_PDM			19	/* 19.5dB Gain */

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struct cs35l41_amp_cal_data {

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	u32 calTarget[2];

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	u32 calTime[2];

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	s8 calAmbient;

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	u8 calStatus;

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	u16 calR;

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} __packed;

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struct cs35l41_amp_efi_data {

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	u32 size;

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	u32 count;

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	struct cs35l41_amp_cal_data data[];

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} __packed;

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enum cs35l41_hda_spk_pos {

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	CS35L41_LEFT,

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	CS35L41_RIGHT,

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	CS35L41_CENTER,

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};

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enum cs35l41_hda_gpio_function {

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	CS35L41_NOT_USED,

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	CS35l41_VSPK_SWITCH,

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	CS35L41_INTERRUPT,

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	CS35l41_SYNC,

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};

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enum control_bus {

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	I2C,

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	SPI

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};

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struct cs35l41_hda {

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	struct device *dev;

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	struct regmap *regmap;

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	struct gpio_desc *reset_gpio;

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	struct gpio_desc *cs_gpio;

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	struct cs35l41_hw_cfg hw_cfg;

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	struct hda_codec *codec;

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	int irq;

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	int index;

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	int channel_index;

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	unsigned volatile long irq_errors;

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	const char *amp_name;

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	const char *acpi_subsystem_id;

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	int firmware_type;

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	int speaker_id;

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	struct mutex fw_mutex;

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	struct work_struct fw_load_work;

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	struct regmap_irq_chip_data *irq_data;

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	bool firmware_running;

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	bool request_fw_load;

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	bool fw_request_ongoing;

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	bool halo_initialized;

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	bool playback_started;

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	struct cs_dsp cs_dsp;

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	struct acpi_device *dacpi;

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	bool mute_override;

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	enum control_bus control_bus;

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	bool bypass_fw;

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	unsigned int tuning_gain;

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	struct cirrus_amp_cal_data cal_data;

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	bool cal_data_valid;

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};

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enum halo_state {

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	HALO_STATE_CODE_INIT_DOWNLOAD = 0,

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	HALO_STATE_CODE_START,

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	HALO_STATE_CODE_RUN

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};

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extern const struct dev_pm_ops cs35l41_hda_pm_ops;

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int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,

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		      struct regmap *regmap, enum control_bus control_bus);

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void cs35l41_hda_remove(struct device *dev);

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int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id);

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int cs35l41_hda_parse_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id);

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#endif /*__CS35L41_HDA_H__*/

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