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