/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * AD5624R SPI DAC driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 */
#ifndef SPI_AD5624R_H_
#define SPI_AD5624R_H_

#define AD5624R_DAC_CHANNELS                    4

#define AD5624R_ADDR_DAC0                       0x0
#define AD5624R_ADDR_DAC1                       0x1
#define AD5624R_ADDR_DAC2                       0x2
#define AD5624R_ADDR_DAC3                       0x3
#define AD5624R_ADDR_ALL_DAC                    0x7

#define AD5624R_CMD_WRITE_INPUT_N               0x0
#define AD5624R_CMD_UPDATE_DAC_N                0x1
#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL    0x2
#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N      0x3
#define AD5624R_CMD_POWERDOWN_DAC               0x4
#define AD5624R_CMD_RESET                       0x5
#define AD5624R_CMD_LDAC_SETUP                  0x6
#define AD5624R_CMD_INTERNAL_REFER_SETUP        0x7

#define AD5624R_LDAC_PWRDN_NONE                 0x0
#define AD5624R_LDAC_PWRDN_1K                   0x1
#define AD5624R_LDAC_PWRDN_100K                 0x2
#define AD5624R_LDAC_PWRDN_3STATE               0x3

/**
 * struct ad5624r_chip_info - chip specific information
 * @channels:           channel spec for the DAC
 * @int_vref_mv:        AD5620/40/60: the internal reference voltage
 */

struct ad5624r_chip_info {
        const struct iio_chan_spec      *channels;
        u16                             int_vref_mv;
};

/**
 * struct ad5624r_state - driver instance specific data
 * @us:                 spi_device
 * @chip_info:          chip model specific constants, available modes etc
 * @vref_mv:            actual reference voltage used
 * @pwr_down_mask       power down mask
 * @pwr_down_mode       current power down mode
 */

struct ad5624r_state {
        struct spi_device               *us;
        const struct ad5624r_chip_info  *chip_info;
        unsigned short                  vref_mv;
        unsigned                        pwr_down_mask;
        unsigned                        pwr_down_mode;
};

/**
 * ad5624r_supported_device_ids:
 * The AD5624/44/64 parts are available in different
 * fixed internal reference voltage options.
 */

enum ad5624r_supported_device_ids {
        ID_AD5624R3,
        ID_AD5644R3,
        ID_AD5664R3,
        ID_AD5624R5,
        ID_AD5644R5,
        ID_AD5664R5,
};

#endif /* SPI_AD5624R_H_ */