flight/pios/inc/pios_exti.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @addtogroup PIOS PIOS Core hardware abstraction layer
   5  * @{
   6  * @addtogroup PIOS_EXTI External Interrupt Handlers
   7  * @{
   8  *
   9  * @file       pios_exti.h
  10  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
  11  * @brief      External Interrupts Handlers header.
  12  * @see        The GNU Public License (GPL) Version 3
  13  *
  14  *****************************************************************************/
  15 /*
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 3 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful, but
  22  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  23  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  24  * for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License along
  27  * with this program; if not, write to the Free Software Foundation, Inc.,
  28  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #ifndef PIOS_EXTI_H
  32 #define PIOS_EXTI_H
  33
  34 /* Public Functions */
  35
  36 #include <pios_stm32.h>
  37
  38 typedef bool (*pios_exti_vector_t)(void);
  39
  40 struct pios_exti_cfg {
  41     pios_exti_vector_t vector;
  42     uint32_t line; /* use EXTI_LineN macros */
  43     struct stm32_gpio  pin;
  44     struct stm32_irq   irq;
  45     struct stm32_exti  exti;
  46 };
  47
  48 /* must be added to any pios_exti_cfg definition for it to be valid */
  49 // #define __exti_config __attribute__((section("_exti")))
  50
  51 #define __exti_config
  52
  53 extern int32_t PIOS_EXTI_Init(const struct pios_exti_cfg *cfg);
  54 extern int32_t PIOS_EXTI_DeInit(const struct pios_exti_cfg *cfg);
  55
  56 #endif /* PIOS_EXTI_H */
  57
  58 /**
  59  * @}
  60  * @}
  61  */