radio/src/timers.h

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #ifndef _TIMERS_H_
  22 #define _TIMERS_H_
  23
  24 #define TMR_OFF      0
  25 #define TMR_RUNNING  1
  26 #define TMR_NEGATIVE 2
  27 #define TMR_STOPPED  3
  28
  29 #if defined(CPUARM)
  30 typedef int32_t tmrval_t;
  31 typedef uint32_t tmrstart_t;
  32 #define TIMER_MAX     (0xffffff/2)
  33 #else
  34 typedef int16_t tmrval_t;
  35 typedef uint16_t tmrstart_t;
  36 #define TIMER_MAX     (0xffff/2)
  37 #endif
  38
  39 #define TIMER_MIN     (tmrval_t(-TIMER_MAX-1))
  40
  41 struct TimerState {
  42   uint16_t cnt;
  43   uint16_t sum;
  44   uint8_t  state;
  45   tmrval_t  val;
  46   uint8_t  val_10ms;
  47 };
  48
  49 extern TimerState timersStates[TIMERS];
  50
  51 void timerReset(uint8_t idx);
  52
  53 #if defined(CPUARM)
  54 void timerSet(int idx, int val);
  55 #endif // #if defined(CPUARM)
  56
  57 #if defined(CPUARM) || defined(CPUM2560)
  58   void saveTimers();
  59   void restoreTimers();
  60 #else
  61   #define saveTimers()
  62   #define restoreTimers()
  63 #endif
  64
  65 void evalTimers(int16_t throttle, uint8_t tick10ms);
  66
  67 #endif // _TIMERS_H_