LXR linux/include/linux/platform

   1/*
   2 * Copyright 2012 Analog Devices Inc.
   3 *
   4 * Licensed under the GPL-2.
   5 */
   6#ifndef __LINUX_PLATFORM_DATA_AD5755_H__
   7#define __LINUX_PLATFORM_DATA_AD5755_H__
   8
   9enum ad5755_mode {
  10        AD5755_MODE_VOLTAGE_0V_5V               = 0,
  11        AD5755_MODE_VOLTAGE_0V_10V              = 1,
  12        AD5755_MODE_VOLTAGE_PLUSMINUS_5V        = 2,
  13        AD5755_MODE_VOLTAGE_PLUSMINUS_10V       = 3,
  14        AD5755_MODE_CURRENT_4mA_20mA            = 4,
  15        AD5755_MODE_CURRENT_0mA_20mA            = 5,
  16        AD5755_MODE_CURRENT_0mA_24mA            = 6,
  17};
  18
  19enum ad5755_dc_dc_phase {
  20        AD5755_DC_DC_PHASE_ALL_SAME_EDGE                = 0,
  21        AD5755_DC_DC_PHASE_A_B_SAME_EDGE_C_D_OPP_EDGE   = 1,
  22        AD5755_DC_DC_PHASE_A_C_SAME_EDGE_B_D_OPP_EDGE   = 2,
  23        AD5755_DC_DC_PHASE_90_DEGREE                    = 3,
  24};
  25
  26enum ad5755_dc_dc_freq {
  27        AD5755_DC_DC_FREQ_250kHZ = 0,
  28        AD5755_DC_DC_FREQ_410kHZ = 1,
  29        AD5755_DC_DC_FREQ_650kHZ = 2,
  30};
  31
  32enum ad5755_dc_dc_maxv {
  33        AD5755_DC_DC_MAXV_23V   = 0,
  34        AD5755_DC_DC_MAXV_24V5  = 1,
  35        AD5755_DC_DC_MAXV_27V   = 2,
  36        AD5755_DC_DC_MAXV_29V5  = 3,
  37};
  38
  39enum ad5755_slew_rate {
  40        AD5755_SLEW_RATE_64k    = 0,
  41        AD5755_SLEW_RATE_32k    = 1,
  42        AD5755_SLEW_RATE_16k    = 2,
  43        AD5755_SLEW_RATE_8k     = 3,
  44        AD5755_SLEW_RATE_4k     = 4,
  45        AD5755_SLEW_RATE_2k     = 5,
  46        AD5755_SLEW_RATE_1k     = 6,
  47        AD5755_SLEW_RATE_500    = 7,
  48        AD5755_SLEW_RATE_250    = 8,
  49        AD5755_SLEW_RATE_125    = 9,
  50        AD5755_SLEW_RATE_64     = 10,
  51        AD5755_SLEW_RATE_32     = 11,
  52        AD5755_SLEW_RATE_16     = 12,
  53        AD5755_SLEW_RATE_8      = 13,
  54        AD5755_SLEW_RATE_4      = 14,
  55        AD5755_SLEW_RATE_0_5    = 15,
  56};
  57
  58enum ad5755_slew_step_size {
  59        AD5755_SLEW_STEP_SIZE_1 = 0,
  60        AD5755_SLEW_STEP_SIZE_2 = 1,
  61        AD5755_SLEW_STEP_SIZE_4 = 2,
  62        AD5755_SLEW_STEP_SIZE_8 = 3,
  63        AD5755_SLEW_STEP_SIZE_16 = 4,
  64        AD5755_SLEW_STEP_SIZE_32 = 5,
  65        AD5755_SLEW_STEP_SIZE_64 = 6,
  66        AD5755_SLEW_STEP_SIZE_128 = 7,
  67        AD5755_SLEW_STEP_SIZE_256 = 8,
  68};
  69
  70/**
  71 * struct ad5755_platform_data - AD5755 DAC driver platform data
  72 * @ext_dc_dc_compenstation_resistor: Whether an external DC-DC converter
  73 * compensation register is used.
  74 * @dc_dc_phase: DC-DC converter phase.
  75 * @dc_dc_freq: DC-DC converter frequency.
  76 * @dc_dc_maxv: DC-DC maximum allowed boost voltage.
  77 * @dac.mode: The mode to be used for the DAC output.
  78 * @dac.ext_current_sense_resistor: Whether an external current sense resistor
  79 * is used.
  80 * @dac.enable_voltage_overrange: Whether to enable 20% voltage output overrange.
  81 * @dac.slew.enable: Whether to enable digital slew.
  82 * @dac.slew.rate: Slew rate of the digital slew.
  83 * @dac.slew.step_size: Slew step size of the digital slew.
  84 **/
  85struct ad5755_platform_data {
  86        bool ext_dc_dc_compenstation_resistor;
  87        enum ad5755_dc_dc_phase dc_dc_phase;
  88        enum ad5755_dc_dc_freq dc_dc_freq;
  89        enum ad5755_dc_dc_maxv dc_dc_maxv;
  90
  91        struct {
  92                enum ad5755_mode mode;
  93                bool ext_current_sense_resistor;
  94                bool enable_voltage_overrange;
  95                struct {
  96                        bool enable;
  97                        enum ad5755_slew_rate rate;
  98                        enum ad5755_slew_step_size step_size;
  99                } slew;
 100        } dac[4];
 101};
 102
 103#endif
 104