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                         name,                           \
  19                         "in_"tag spacer name"_en",      \
  20                         "in_"tag spacer name"_type",    \
  21                         "in_"tag spacer name"_index",   \
  22                         "in_"tag spacer name"_raw",     \
  23                         "in_"tag spacer name"_input",   \
  24                         "in_"tag spacer name"_scale",   \
  25                 },
  26
  27 #define DECLARE_NAMED_CHANNEL(tag, name)        DECLARE_CHANNEL(tag, "_", name)
  28
  29 #define DECLARE_GENERIC_CHANNEL(tag)            DECLARE_CHANNEL(tag, "", "")
  30
  31 #define DECLARE_VIRTUAL(type)                   \
  32 {                                                       \
  33         "", type, 0, 1,                         \
  34         {                                               \
  35                 DECLARE_GENERIC_CHANNEL("")             \
  36         }                                               \
  37 },
  38
  39 #define DECLARE_SENSOR0(tag, type)                      \
  40 {                                                       \
  41         tag, type, 1, 0,                                        \
  42         {                                               \
  43                 DECLARE_GENERIC_CHANNEL(tag)            \
  44         }                                               \
  45 },
  46
  47 #define DECLARE_SENSOR1(tag, type, ch1)                 \
  48 {                                                       \
  49         tag, type, 1, 0,                                        \
  50         {                                               \
  51                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  52         }                                               \
  53 },
  54
  55 #define DECLARE_SENSOR2(tag, type, ch1, ch2)            \
  56 {                                                       \
  57         tag, type, 2, 0,                                        \
  58         {                                               \
  59                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  60                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  61         }                                               \
  62 },
  63
  64 #define DECLARE_SENSOR3(tag, type, ch1, ch2, ch3)       \
  65 {                                                       \
  66         tag, type, 3, 0,                                \
  67         {                                               \
  68                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  69                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  70                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  71         }                                               \
  72 },
  73
  74 #define DECLARE_SENSOR4(tag, type, ch1, ch2, ch3, ch4)  \
  75 {                                                       \
  76         tag, type, 4, 0,                                        \
  77         {                                               \
  78                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  79                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  80                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  81                 DECLARE_NAMED_CHANNEL(tag, ch4)         \
  82         }                                               \
  83 },
  84
  85 int     get_sensors_list        (struct sensors_module_t* module,
  86                                  struct sensor_t const** list);
  87
  88 void    enumerate_sensors       (void);
  89 void    delete_enumeration_data (void);
  90
  91 #endif