LXR linux/drivers/iio/dac/ad5624r.h

   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