rpp/src/rpp/irc.c

   1 /* Copyright (C) 2013-2014 Czech Technical University in Prague
   2  *
   3  * Authors:
   4  *     - Karel Kočí
   5  *
   6  * This document contains proprietary information belonging to Czech
   7  * Technical University in Prague. Passing on and copying of this
   8  * document, and communication of its contents is not permitted
   9  * without prior written authorization.
  10  *
  11  * File : irc.c
  12  * Abstract:
  13  *     IRC sensor input driver RPP API implementation file.
  14  *
  15  * References:
  16  *     irc.h
  17  *     RPP API documentation.
  18  */
  19
  20 #include "rpp/rpp.h"
  21
  22 #ifndef FREERTOS_POSIX
  23 #include "sys/sys.h"
  24 #else
  25 #define setMuxForIRC(a, b)
  26 #define ircEnable(a)
  27 #define ircDisable(a)
  28 #endif
  29
  30 static boolean_t initialized = FALSE;
  31
  32 static boolean_t rpp_irc_enabled[2] = {FALSE, FALSE};
  33
  34 int8_t rpp_irc_init()
  35 {
  36
  37         if (initialized)
  38                 return FAILURE;
  39
  40 #ifndef FREERTOS_POSIX
  41         het2Init();
  42 #endif
  43
  44         initialized = TRUE;
  45         return SUCCESS;
  46 }
  47
  48 int8_t rpp_irc_enable(uint8_t irc)
  49 {
  50
  51         if (!initialized)
  52                 return FAILURE;
  53
  54         if (irc < 1 || irc > 2)
  55                 return -RPP_EINVAL;
  56
  57         rpp_irc_enabled[irc-1] = TRUE;
  58
  59         setMuxForIRC(irc, TRUE);
  60         ircEnable(irc);
  61
  62         return SUCCESS;
  63 }
  64
  65 int8_t rpp_irc_status(uint8_t irc)
  66 {
  67
  68         if (!initialized)
  69                 return FAILURE;
  70
  71         if (irc < 1 || irc > 2)
  72                 return -RPP_EINVAL;
  73
  74         return rpp_irc_enabled[irc-1];
  75 }
  76
  77 int32_t rpp_irc_get(uint8_t irc)
  78 {
  79
  80         if (!initialized)
  81                 return FAILURE;
  82
  83         if (irc < 1 || irc > 2)
  84                 return 0;
  85
  86         if (rpp_irc_status(irc) != 1)
  87                 return FAILURE;
  88
  89 #ifndef FREERTOS_POSIX
  90         return ircGet(irc);
  91 #else
  92         return 1;
  93 #endif
  94 }
  95
  96 int8_t rpp_irc_disable(uint8_t irc)
  97 {
  98
  99         if (!initialized)
 100                 return FAILURE;
 101
 102         if (irc < 1 || irc > 2)
 103                 return -RPP_EINVAL;
 104
 105         if (rpp_irc_status(irc) != 1)
 106                 return FAILURE;
 107
 108         ircDisable(irc);
 109         setMuxForIRC(irc, FALSE);
 110         rpp_irc_enabled[irc-1] = FALSE;
 111         return SUCCESS;
 112 }