ad5755.h
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/*
* Copyright 2012 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#ifndef __LINUX_PLATFORM_DATA_AD5755_H__
#define __LINUX_PLATFORM_DATA_AD5755_H__
enum ad5755_mode {
AD5755_MODE_VOLTAGE_0V_5V = 0,
AD5755_MODE_VOLTAGE_0V_10V = 1,
AD5755_MODE_VOLTAGE_PLUSMINUS_5V = 2,
AD5755_MODE_VOLTAGE_PLUSMINUS_10V = 3,
AD5755_MODE_CURRENT_4mA_20mA = 4,
AD5755_MODE_CURRENT_0mA_20mA = 5,
AD5755_MODE_CURRENT_0mA_24mA = 6,
};
enum ad5755_dc_dc_phase {
AD5755_DC_DC_PHASE_ALL_SAME_EDGE = 0,
AD5755_DC_DC_PHASE_A_B_SAME_EDGE_C_D_OPP_EDGE = 1,
AD5755_DC_DC_PHASE_A_C_SAME_EDGE_B_D_OPP_EDGE = 2,
AD5755_DC_DC_PHASE_90_DEGREE = 3,
};
enum ad5755_dc_dc_freq {
AD5755_DC_DC_FREQ_250kHZ = 0,
AD5755_DC_DC_FREQ_410kHZ = 1,
AD5755_DC_DC_FREQ_650kHZ = 2,
};
enum ad5755_dc_dc_maxv {
AD5755_DC_DC_MAXV_23V = 0,
AD5755_DC_DC_MAXV_24V5 = 1,
AD5755_DC_DC_MAXV_27V = 2,
AD5755_DC_DC_MAXV_29V5 = 3,
};
enum ad5755_slew_rate {
AD5755_SLEW_RATE_64k = 0,
AD5755_SLEW_RATE_32k = 1,
AD5755_SLEW_RATE_16k = 2,
AD5755_SLEW_RATE_8k = 3,
AD5755_SLEW_RATE_4k = 4,
AD5755_SLEW_RATE_2k = 5,
AD5755_SLEW_RATE_1k = 6,
AD5755_SLEW_RATE_500 = 7,
AD5755_SLEW_RATE_250 = 8,
AD5755_SLEW_RATE_125 = 9,
AD5755_SLEW_RATE_64 = 10,
AD5755_SLEW_RATE_32 = 11,
AD5755_SLEW_RATE_16 = 12,
AD5755_SLEW_RATE_8 = 13,
AD5755_SLEW_RATE_4 = 14,
AD5755_SLEW_RATE_0_5 = 15,
};
enum ad5755_slew_step_size {
AD5755_SLEW_STEP_SIZE_1 = 0,
AD5755_SLEW_STEP_SIZE_2 = 1,
AD5755_SLEW_STEP_SIZE_4 = 2,
AD5755_SLEW_STEP_SIZE_8 = 3,
AD5755_SLEW_STEP_SIZE_16 = 4,
AD5755_SLEW_STEP_SIZE_32 = 5,
AD5755_SLEW_STEP_SIZE_64 = 6,
AD5755_SLEW_STEP_SIZE_128 = 7,
AD5755_SLEW_STEP_SIZE_256 = 8,
};
/**
* struct ad5755_platform_data - AD5755 DAC driver platform data
* @ext_dc_dc_compenstation_resistor: Whether an external DC-DC converter
* compensation register is used.
* @dc_dc_phase: DC-DC converter phase.
* @dc_dc_freq: DC-DC converter frequency.
* @dc_dc_maxv: DC-DC maximum allowed boost voltage.
* @dac.mode: The mode to be used for the DAC output.
* @dac.ext_current_sense_resistor: Whether an external current sense resistor
* is used.
* @dac.enable_voltage_overrange: Whether to enable 20% voltage output overrange.
* @dac.slew.enable: Whether to enable digital slew.
* @dac.slew.rate: Slew rate of the digital slew.
* @dac.slew.step_size: Slew step size of the digital slew.
**/
struct ad5755_platform_data {
bool ext_dc_dc_compenstation_resistor;
enum ad5755_dc_dc_phase dc_dc_phase;
enum ad5755_dc_dc_freq dc_dc_freq;
enum ad5755_dc_dc_maxv dc_dc_maxv;
struct {
enum ad5755_mode mode;
bool ext_current_sense_resistor;
bool enable_voltage_overrange;
struct {
bool enable;
enum ad5755_slew_rate rate;
enum ad5755_slew_step_size step_size;
} slew;
} dac[4];
};
#endif