enumeration.h

   1 /*
   2  * Copyright (C) 2014 Intel Corporation.
   3  */
   4
   5 #ifndef __ENUMERATION_H__
   6 #define __ENUMERATION_H__
   7
   8 #include "common.h"
   9
  10 /*
  11  * Macros associating iio sysfs entries to to sensor types ; see
  12  * linux/kernel/drivers/iio/industrialio-core.c and
  13  * hardware/libhardware/include/hardware/sensor.h
  14  */
  15
  16 #define DECLARE_CHANNEL(tag, spacer, name)              \
  17                 {                                       \
  18                         "in_"tag spacer name"_en",      \
  19                         "in_"tag spacer name"_type",    \
  20                         "in_"tag spacer name"_index",   \
  21                         "in_"tag spacer name"_raw",     \
  22                         "in_"tag spacer name"_input",   \
  23                         "in_"tag spacer name"_scale",   \
  24                 },
  25
  26 #define DECLARE_NAMED_CHANNEL(tag, name)        DECLARE_CHANNEL(tag, "_", name)
  27
  28 #define DECLARE_GENERIC_CHANNEL(tag)            DECLARE_CHANNEL(tag, "", "")
  29
  30
  31 #define DECLARE_SENSOR0(tag, type)                      \
  32 {                                                       \
  33         tag, type, 1,                                   \
  34         {                                               \
  35                 DECLARE_GENERIC_CHANNEL(tag)            \
  36         }                                               \
  37 },
  38
  39 #define DECLARE_SENSOR1(tag, type, ch1)                 \
  40 {                                                       \
  41         tag, type, 1,                                   \
  42         {                                               \
  43                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  44         }                                               \
  45 },
  46
  47 #define DECLARE_SENSOR2(tag, type, ch1, ch2)            \
  48 {                                                       \
  49         tag, type, 2,                                   \
  50         {                                               \
  51                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  52                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  53         }                                               \
  54 },
  55
  56 #define DECLARE_SENSOR3(tag, type, ch1, ch2, ch3)       \
  57 {                                                       \
  58         tag, type, 3,                                   \
  59         {                                               \
  60                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  61                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  62                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  63         }                                               \
  64 },
  65
  66 #define DECLARE_SENSOR4(tag, type, ch1, ch2, ch3, ch4)  \
  67 {                                                       \
  68         tag, type, 4,                                   \
  69         {                                               \
  70                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  71                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  72                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  73                 DECLARE_NAMED_CHANNEL(tag, ch4)         \
  74         }                                               \
  75 },
  76
  77 int     get_sensors_list        (struct sensors_module_t* module,
  78                                  struct sensor_t const** list);
  79
  80 void    enumerate_sensors       (void);
  81 void    delete_enumeration_data (void);
  82
  83 #endif