1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * AD5624R SPI DAC driver 4 * 5 * Copyright 2010-2011 Analog Devices Inc. 6 */ 7#ifndef SPI_AD5624R_H_ 8#define SPI_AD5624R_H_ 9 10#define AD5624R_DAC_CHANNELS 4 11 12#define AD5624R_ADDR_DAC0 0x0 13#define AD5624R_ADDR_DAC1 0x1 14#define AD5624R_ADDR_DAC2 0x2 15#define AD5624R_ADDR_DAC3 0x3 16#define AD5624R_ADDR_ALL_DAC 0x7 17 18#define AD5624R_CMD_WRITE_INPUT_N 0x0 19#define AD5624R_CMD_UPDATE_DAC_N 0x1 20#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL 0x2 21#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N 0x3 22#define AD5624R_CMD_POWERDOWN_DAC 0x4 23#define AD5624R_CMD_RESET 0x5 24#define AD5624R_CMD_LDAC_SETUP 0x6 25#define AD5624R_CMD_INTERNAL_REFER_SETUP 0x7 26 27#define AD5624R_LDAC_PWRDN_NONE 0x0 28#define AD5624R_LDAC_PWRDN_1K 0x1 29#define AD5624R_LDAC_PWRDN_100K 0x2 30#define AD5624R_LDAC_PWRDN_3STATE 0x3 31 32/** 33 * struct ad5624r_chip_info - chip specific information 34 * @channels: channel spec for the DAC 35 * @int_vref_mv: AD5620/40/60: the internal reference voltage 36 */ 37 38struct ad5624r_chip_info { 39 const struct iio_chan_spec *channels; 40 u16 int_vref_mv; 41}; 42 43/** 44 * struct ad5446_state - driver instance specific data 45 * @indio_dev: the industrial I/O device 46 * @us: spi_device 47 * @chip_info: chip model specific constants, available modes etc 48 * @reg: supply regulator 49 * @vref_mv: actual reference voltage used 50 * @pwr_down_mask power down mask 51 * @pwr_down_mode current power down mode 52 */ 53 54struct ad5624r_state { 55 struct spi_device *us; 56 const struct ad5624r_chip_info *chip_info; 57 struct regulator *reg; 58 unsigned short vref_mv; 59 unsigned pwr_down_mask; 60 unsigned pwr_down_mode; 61}; 62 63/** 64 * ad5624r_supported_device_ids: 65 * The AD5624/44/64 parts are available in different 66 * fixed internal reference voltage options. 67 */ 68 69enum ad5624r_supported_device_ids { 70 ID_AD5624R3, 71 ID_AD5644R3, 72 ID_AD5664R3, 73 ID_AD5624R5, 74 ID_AD5644R5, 75 ID_AD5664R5, 76}; 77 78#endif /* SPI_AD5624R_H_ */ 79