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/* SPDX-License-Identifier: GPL-2.0 */
//
// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
//
// Copyright (C) 2024 Texas Instruments Incorporated
// https://www.ti.com
//
// The TAS2781 driver implements a flexible and configurable
// algo coefficient setting for TAS2781 chips.
//
// Author: Baojun Xu <baojun.xu@ti.com>
//
#ifndef __TAS2781_SPI_H__
#define __TAS2781_SPI_H__
#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)
#define TASDEVICE_MAX_BOOK_NUM 256
#define TASDEVICE_MAX_PAGE 256
#define TASDEVICE_MAX_SIZE (TASDEVICE_MAX_BOOK_NUM * TASDEVICE_MAX_PAGE)
/* PAGE Control Register (available in page0 of each book) */
#define TASDEVICE_PAGE_SELECT 0x00
#define TASDEVICE_BOOKCTL_PAGE 0x00
#define TASDEVICE_BOOKCTL_REG GENMASK(7, 1)
#define TASDEVICE_BOOK_ID(reg) (((reg) & GENMASK(24, 16)) >> 16)
#define TASDEVICE_PAGE_ID(reg) (((reg) & GENMASK(15, 8)) >> 8)
#define TASDEVICE_REG_ID(reg) (((reg) & GENMASK(7, 1)) >> 1)
#define TASDEVICE_PAGE_REG(reg) ((reg) & GENMASK(15, 1))
#define TASDEVICE_REG(book, page, reg) \
(((book) << 16) | ((page) << 8) | ((reg) << 1))
/* Software Reset */
#define TAS2781_REG_SWRESET TASDEVICE_REG(0x0, 0x0, 0x01)
#define TAS2781_REG_SWRESET_RESET BIT(0)
/* System Reset Check Register */
#define TAS2781_REG_CLK_CONFIG TASDEVICE_REG(0x0, 0x0, 0x5c)
#define TAS2781_REG_CLK_CONFIG_RESET (0x19)
#define TAS2781_PRE_POST_RESET_CFG 3
/* Block Checksum */
#define TASDEVICE_CHECKSUM 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
#define TAS2781_SPI_MAX_FREQ (4 * HZ_PER_MHZ)
#define TASDEVICE_CRC8_POLYNOMIAL 0x4d
#define TASDEVICE_SPEAKER_CALIBRATION_SIZE 20
/* Flag of calibration registers address. */
#define TASDEVICE_CALIBRATION_REG_ADDRESS BIT(7)
#define TASDEVICE_CALIBRATION_DATA_NAME L"CALI_DATA"
#define TASDEVICE_CALIBRATION_DATA_SIZE 256
enum calib_data {
R0_VAL = 0,
INV_R0,
R0LOW,
POWER,
TLIM,
CALIB_MAX
};
struct tasdevice_priv {
struct tasdevice_fw *cali_data_fmw;
struct tasdevice_rca rcabin;
struct tasdevice_fw *fmw;
struct gpio_desc *reset;
struct mutex codec_lock;
struct regmap *regmap;
struct device *dev;
struct tm tm;
unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
unsigned char coef_binaryname[64];
unsigned char rca_binaryname[64];
unsigned char dev_name[32];
bool force_fwload_status;
bool playback_started;
bool is_loading;
bool is_loaderr;
unsigned int cali_reg_array[CALIB_MAX];
unsigned int cali_data[CALIB_MAX];
unsigned int err_code;
void *codec;
int cur_book;
int cur_prog;
int cur_conf;
int fw_state;
int index;
int irq;
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);
int (*save_calibration)(struct tasdevice_priv *tas_priv);
void (*apply_calibration)(struct tasdevice_priv *tas_priv);
};
int tasdevice_spi_dev_read(struct tasdevice_priv *tas_priv,
unsigned int reg, unsigned int *value);
int tasdevice_spi_dev_write(struct tasdevice_priv *tas_priv,
unsigned int reg, unsigned int value);
int tasdevice_spi_dev_bulk_write(struct tasdevice_priv *tas_priv,
unsigned int reg, unsigned char *p_data,
unsigned int n_length);
int tasdevice_spi_dev_bulk_read(struct tasdevice_priv *tas_priv,
unsigned int reg, unsigned char *p_data,
unsigned int n_length);
int tasdevice_spi_dev_update_bits(struct tasdevice_priv *tasdevice,
unsigned int reg, unsigned int mask,
unsigned int value);
void tasdevice_spi_select_cfg_blk(void *context, int conf_no,
unsigned char block_type);
void tasdevice_spi_config_info_remove(void *context);
int tasdevice_spi_dsp_parser(void *context);
int tasdevice_spi_rca_parser(void *context, const struct firmware *fmw);
void tasdevice_spi_dsp_remove(void *context);
void tasdevice_spi_calbin_remove(void *context);
int tasdevice_spi_select_tuningprm_cfg(void *context, int prm, int cfg_no,
int rca_conf_no);
int tasdevice_spi_prmg_load(void *context, int prm_no);
int tasdevice_spi_prmg_calibdata_load(void *context, int prm_no);
void tasdevice_spi_tuning_switch(void *context, int state);
int tas2781_spi_load_calibration(void *context, char *file_name,
unsigned short i);
#endif /* __TAS2781_SPI_H__ */
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