/**
  ******************************************************************************
  * @file    stm32f1xx_it.c
  * @brief   Interrupt Service Routines.
  ******************************************************************************
  *
  * COPYRIGHT(c) 2016 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal.h"
#include "stm32f1xx.h"
#include "stm32f1xx_it.h"

/* USER CODE BEGIN 0 */
#include "utils.h"

/* USER CODE END 0 */

/* External variables --------------------------------------------------------*/
extern DMA_HandleTypeDef hdma_adc1;

/******************************************************************************/
/*            Cortex-M3 Processor Interruption and Exception Handlers         */
/******************************************************************************/

/**
* @brief This function handles Non maskable interrupt.
*/
void NMI_Handler(void)
{
  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */

  /* USER CODE END NonMaskableInt_IRQn 0 */
  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */

  /* USER CODE END NonMaskableInt_IRQn 1 */
}


/* USER CODE BEGIN prvGetRegistersFromStack */
/**
 * Hard Fault diagnosis function (for use with debugger)
 *
 * Source:
 * http://www.freertos.org/Debugging-Hard-Faults-On-Cortex-M-Microcontrollers.html
 */
static void __attribute__((noreturn)) __attribute__((used))
prvGetRegistersFromStack(uint32_t *pulFaultStackAddress)
{
	/* These are volatile to try and prevent the compiler/linker optimising them
	away as the variables never actually get used.  If the debugger won't show the
	values of the variables, make them global my moving their declaration outside
	of this function. */
	volatile __attribute__((unused)) uint32_t r0;
	volatile __attribute__((unused)) uint32_t r1;
	volatile __attribute__((unused)) uint32_t r2;
	volatile __attribute__((unused)) uint32_t r3;
	volatile __attribute__((unused)) uint32_t r12;
	volatile __attribute__((unused)) uint32_t lr; /* Link register. */
	volatile __attribute__((unused)) uint32_t pc; /* Program counter. */
	volatile __attribute__((unused)) uint32_t psr;/* Program status register. */

	r0 = pulFaultStackAddress[ 0 ];
	r1 = pulFaultStackAddress[ 1 ];
	r2 = pulFaultStackAddress[ 2 ];
	r3 = pulFaultStackAddress[ 3 ];

	r12 = pulFaultStackAddress[ 4 ];
	lr = pulFaultStackAddress[ 5 ];
	pc = pulFaultStackAddress[ 6 ];
	psr = pulFaultStackAddress[ 7 ];

	/* When the following line is hit, the variables contain the register values. */
	for (;;);
}
/* USER CODE END prvGetRegistersFromStack */

/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
  /* USER CODE BEGIN HardFault_IRQn 0 */
  __asm volatile
  (
    " tst lr, #4                                                \n"
    " ite eq                                                    \n"
    " mrseq r0, msp                                             \n"
    " mrsne r0, psp                                             \n"
    " ldr r1, [r0, #24]                                         \n"
    " ldr r2, =prvGetRegistersFromStack                         \n"
    " bx r2                                                     \n"
  );

  /* USER CODE END HardFault_IRQn 0 */
  while (1)
  {
  }
  /* USER CODE BEGIN HardFault_IRQn 1 */

  /* USER CODE END HardFault_IRQn 1 */
}

/**
* @brief This function handles Memory management fault.
*/
void MemManage_Handler(void)
{
  /* USER CODE BEGIN MemoryManagement_IRQn 0 */
  uart_print("MemManage fault.\n");

  /* USER CODE END MemoryManagement_IRQn 0 */
  while (1)
  {
  }
  /* USER CODE BEGIN MemoryManagement_IRQn 1 */

  /* USER CODE END MemoryManagement_IRQn 1 */
}

/**
* @brief This function handles Prefetch fault, memory access fault.
*/
void BusFault_Handler(void)
{
  /* USER CODE BEGIN BusFault_IRQn 0 */
  uart_print("Bus fault.\n");

  /* USER CODE END BusFault_IRQn 0 */
  while (1)
  {
  }
  /* USER CODE BEGIN BusFault_IRQn 1 */

  /* USER CODE END BusFault_IRQn 1 */
}

/**
* @brief This function handles Undefined instruction or illegal state.
*/
void UsageFault_Handler(void)
{
  /* USER CODE BEGIN UsageFault_IRQn 0 */
  uart_print("Usage fault.\n");

  /* USER CODE END UsageFault_IRQn 0 */
  while (1)
  {
  }
  /* USER CODE BEGIN UsageFault_IRQn 1 */

  /* USER CODE END UsageFault_IRQn 1 */
}

/**
* @brief This function handles System service call via SWI instruction.
*/
void SVC_Handler(void)
{
  /* USER CODE BEGIN SVCall_IRQn 0 */

  /* USER CODE END SVCall_IRQn 0 */
  /* USER CODE BEGIN SVCall_IRQn 1 */

  /* USER CODE END SVCall_IRQn 1 */
}

/**
* @brief This function handles Debug monitor.
*/
void DebugMon_Handler(void)
{
  /* USER CODE BEGIN DebugMonitor_IRQn 0 */

  /* USER CODE END DebugMonitor_IRQn 0 */
  /* USER CODE BEGIN DebugMonitor_IRQn 1 */

  /* USER CODE END DebugMonitor_IRQn 1 */
}

/**
* @brief This function handles Pendable request for system service.
*/
void PendSV_Handler(void)
{
  /* USER CODE BEGIN PendSV_IRQn 0 */

  /* USER CODE END PendSV_IRQn 0 */
  /* USER CODE BEGIN PendSV_IRQn 1 */

  /* USER CODE END PendSV_IRQn 1 */
}

/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */

  /* USER CODE END SysTick_IRQn 0 */
  HAL_IncTick();
  HAL_SYSTICK_IRQHandler();
  /* USER CODE BEGIN SysTick_IRQn 1 */

  /* USER CODE END SysTick_IRQn 1 */
}

/******************************************************************************/
/* STM32F1xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32f1xx.s).                    */
/******************************************************************************/

/**
* @brief This function handles DMA1 channel1 global interrupt.
*/
void DMA1_Channel1_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel1_IRQn 0 */

  /* USER CODE END DMA1_Channel1_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_adc1);
  /* USER CODE BEGIN DMA1_Channel1_IRQn 1 */

  /* USER CODE END DMA1_Channel1_IRQn 1 */
}

/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/