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
  32 #define DECLARE_SENSOR0(tag, type)                      \
  33 {                                                       \
  34         tag, type, 1,                                   \
  35         {                                               \
  36                 DECLARE_GENERIC_CHANNEL(tag)            \
  37         }                                               \
  38 },
  39
  40 #define DECLARE_SENSOR1(tag, type, ch1)                 \
  41 {                                                       \
  42         tag, type, 1,                                   \
  43         {                                               \
  44                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  45         }                                               \
  46 },
  47
  48 #define DECLARE_SENSOR2(tag, type, ch1, ch2)            \
  49 {                                                       \
  50         tag, type, 2,                                   \
  51         {                                               \
  52                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  53                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  54         }                                               \
  55 },
  56
  57 #define DECLARE_SENSOR3(tag, type, ch1, ch2, ch3)       \
  58 {                                                       \
  59         tag, type, 3,                                   \
  60         {                                               \
  61                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  62                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  63                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  64         }                                               \
  65 },
  66
  67 #define DECLARE_SENSOR4(tag, type, ch1, ch2, ch3, ch4)  \
  68 {                                                       \
  69         tag, type, 4,                                   \
  70         {                                               \
  71                 DECLARE_NAMED_CHANNEL(tag, ch1)         \
  72                 DECLARE_NAMED_CHANNEL(tag, ch2)         \
  73                 DECLARE_NAMED_CHANNEL(tag, ch3)         \
  74                 DECLARE_NAMED_CHANNEL(tag, ch4)         \
  75         }                                               \
  76 },
  77
  78 int     get_sensors_list        (struct sensors_module_t* module,
  79                                  struct sensor_t const** list);
  80
  81 void    enumerate_sensors       (void);
  82 void    delete_enumeration_data (void);
  83
  84 #endif