src/main/drivers/system.h

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #pragma once
  19
  20 void systemInit(void);
  21 void delayMicroseconds(uint32_t us);
  22 void delay(uint32_t ms);
  23
  24 uint32_t micros(void);
  25 uint32_t millis(void);
  26
  27 // failure
  28 void failureMode(uint8_t mode);
  29
  30 // bootloader/IAP
  31 void systemReset(void);
  32 void systemResetToBootloader(void);
  33 bool isMPUSoftReset(void);
  34
  35 void enableGPIOPowerUsageAndNoiseReductions(void);
  36 // current crystal frequency - 8 or 12MHz
  37 extern uint32_t hse_value;
  38
  39 typedef void extiCallbackHandlerFunc(void);
  40
  41 void registerExtiCallbackHandler(IRQn_Type irqn, extiCallbackHandlerFunc *fn);
  42 void unregisterExtiCallbackHandler(IRQn_Type irqn, extiCallbackHandlerFunc *fn);
  43
  44 extern uint32_t cachedRccCsrValue;
  45
  46 typedef enum {
  47     FAILURE_DEVELOPER = 0,
  48     FAILURE_MISSING_ACC,
  49     FAILURE_ACC_INIT,
  50     FAILURE_ACC_INCOMPATIBLE,
  51     FAILURE_INVALID_EEPROM_CONTENTS,
  52     FAILURE_FLASH_WRITE_FAILED,
  53     FAILURE_GYRO_INIT_FAILED
  54 } failureMode_e;
  55