/* * AD5624R SPI DAC driver * * Copyright 2010-2011 Analog Devices Inc. * * Licensed under the GPL-2. */ #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 ad5446_state - driver instance specific data * @indio_dev: the industrial I/O device * @us: spi_device * @chip_info: chip model specific constants, available modes etc * @reg: supply regulator * @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; struct regulator *reg; 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_ */