/* SPDX-License-Identifier: GPL-2.0 */
//
// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
//
// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
// https://www.ti.com
//
// The TAS2781 driver implements a flexible and configurable
// algo coefficient setting for one, two, or even multiple
// TAS2781 chips.
//
// Author: Shenghao Ding <[email protected]>
// Author: Kevin Lu <[email protected]>
//

#ifndef __TAS2781_H__
#define __TAS2781_H__

#include "tas2781-dsp.h"

/* version number */
#define TAS2781_DRV_VER            1
#define SMARTAMP_MODULE_NAME        "tas2781"
#define TAS2781_GLOBAL_ADDR    0x40
#define TASDEVICE_RATES            (SNDRV_PCM_RATE_44100 |\
    SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
    SNDRV_PCM_RATE_88200)

#define TASDEVICE_FORMATS        (SNDRV_PCM_FMTBIT_S16_LE | \
    SNDRV_PCM_FMTBIT_S24_LE | \
    SNDRV_PCM_FMTBIT_S32_LE)

/*PAGE Control Register (available in page0 of each book) */
#define TASDEVICE_PAGE_SELECT        0x00
#define TASDEVICE_BOOKCTL_PAGE        0x00
#define TASDEVICE_BOOKCTL_REG        127
#define TASDEVICE_BOOK_ID(reg)        (reg / (256 * 128))
#define TASDEVICE_PAGE_ID(reg)        ((reg % (256 * 128)) / 128)
#define TASDEVICE_PAGE_REG(reg)        ((reg % (256 * 128)) % 128)
#define TASDEVICE_PGRG(reg)        (reg % (256 * 128))
#define TASDEVICE_REG(book, page, reg)    (((book * 256 * 128) + \
                    (page * 128)) + reg)

/*Software Reset */
#define TAS2781_REG_SWRESET        TASDEVICE_REG(0x0, 0X0, 0x01)
#define TAS2781_REG_SWRESET_RESET    BIT(0)

/*I2C Checksum */
#define TASDEVICE_I2CChecksum        TASDEVICE_REG(0x0, 0x0, 0x7E)

/* Volume control */
#define TAS2781_DVC_LVL            TASDEVICE_REG(0x0, 0x0, 0x1A)
#define TAS2781_AMP_LEVEL        TASDEVICE_REG(0x0, 0x0, 0x03)
#define TAS2781_AMP_LEVEL_MASK        GENMASK(5, 1)

#define TASDEVICE_CMD_SING_W        0x1
#define TASDEVICE_CMD_BURST        0x2
#define TASDEVICE_CMD_DELAY        0x3
#define TASDEVICE_CMD_FIELD_W        0x4

enum audio_device {
    TAS2781    = 0,
};

enum device_catlog_id {
    LENOVO = 0,
    OTHERS
};

struct tasdevice {
    struct tasdevice_fw *cali_data_fmw;
    unsigned int dev_addr;
    unsigned int err_code;
    unsigned char cur_book;
    short cur_prog;
    short cur_conf;
    bool is_loading;
    bool is_loaderr;
};

struct tasdevice_irqinfo {
    int irq_gpio;
    int irq;
};

struct calidata {
    unsigned char *data;
    unsigned long total_sz;
};

struct tasdevice_priv {
    struct tasdevice tasdevice[TASDEVICE_MAX_CHANNELS];
    struct tasdevice_irqinfo irq_info;
    struct tasdevice_rca rcabin;
    struct calidata cali_data;
    struct tasdevice_fw *fmw;
    struct gpio_desc *reset;
    struct mutex codec_lock;
    struct regmap *regmap;
    struct device *dev;
    struct tm tm;

    enum device_catlog_id catlog_id;
    const char *acpi_subsystem_id;
    unsigned char cal_binaryname[TASDEVICE_MAX_CHANNELS][64];
    unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
    unsigned char coef_binaryname[64];
    unsigned char rca_binaryname[64];
    unsigned char dev_name[32];
    unsigned char ndev;
    unsigned int magic_num;
    unsigned int chip_id;
    unsigned int sysclk;

    int cur_prog;
    int cur_conf;
    int fw_state;
    int index;
    void *client;
    void *codec;
    bool force_fwload_status;
    bool playback_started;
    bool isacpi;
    int (*fw_parse_variable_header)(struct tasdevice_priv *tas_priv,
        const struct firmware *fmw, int offset);
    int (*fw_parse_program_data)(struct tasdevice_priv *tas_priv,
        struct tasdevice_fw *tas_fmw,
        const struct firmware *fmw, int offset);
    int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_priv,
        struct tasdevice_fw *tas_fmw,
        const struct firmware *fmw, int offset);
    int (*tasdevice_load_block)(struct tasdevice_priv *tas_priv,
        struct tasdev_blk *block);
};

void tas2781_reset(struct tasdevice_priv *tas_dev);
int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
    void (*cont)(const struct firmware *fw, void *context));
struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c);
int tasdevice_init(struct tasdevice_priv *tas_priv);
void tasdevice_remove(struct tasdevice_priv *tas_priv);
int tasdevice_dev_read(struct tasdevice_priv *tas_priv,
    unsigned short chn, unsigned int reg, unsigned int *value);
int tasdevice_dev_write(struct tasdevice_priv *tas_priv,
    unsigned short chn, unsigned int reg, unsigned int value);
int tasdevice_dev_bulk_write(
    struct tasdevice_priv *tas_priv, unsigned short chn,
    unsigned int reg, unsigned char *p_data, unsigned int n_length);
int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_priv,
    unsigned short chn, unsigned int reg, unsigned char *p_data,
    unsigned int n_length);
int tasdevice_dev_update_bits(
    struct tasdevice_priv *tasdevice, unsigned short chn,
    unsigned int reg, unsigned int mask, unsigned int value);
int tasdevice_amp_putvol(struct tasdevice_priv *tas_priv,
    struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
int tasdevice_amp_getvol(struct tasdevice_priv *tas_priv,
    struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
int tasdevice_digital_putvol(struct tasdevice_priv *tas_priv,
    struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
int tasdevice_digital_getvol(struct tasdevice_priv *tas_priv,
    struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);

#endif /* __TAS2781_H__ */