Merge branch 'master' into rcc-dev

Conflicts:
	Makefile

1 files changed, 219 insertions, 0 deletions

diff --git a/stm32lib/src/stm32f10x_exti.c b/stm32lib/src/stm32f10x_exti.c
new file mode 100644
index 0000000..021a051
--- /dev/null
+++ b/stm32lib/src/stm32f10x_exti.c
@@ -0,0 +1,219 @@
+/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************

+* File Name          : stm32f10x_exti.c

+* Author             : MCD Application Team

+* Version            : V2.0.2

+* Date               : 07/11/2008

+* Description        : This file provides all the EXTI firmware functions.

+********************************************************************************

+* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

+* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.

+* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,

+* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE

+* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING

+* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.

+*******************************************************************************/

+

+/* Includes ------------------------------------------------------------------*/

+#include "stm32f10x_exti.h"

+

+/* Private typedef -----------------------------------------------------------*/

+/* Private define ------------------------------------------------------------*/

+#define EXTI_LineNone    ((u32)0x00000)  /* No interrupt selected */

+

+/* Private macro -------------------------------------------------------------*/

+/* Private variables ---------------------------------------------------------*/

+/* Private function prototypes -----------------------------------------------*/

+/* Private functions ---------------------------------------------------------*/

+

+/*******************************************************************************

+* Function Name  : EXTI_DeInit

+* Description    : Deinitializes the EXTI peripheral registers to their default 

+*                  reset values.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_DeInit(void)

+{

+  EXTI->IMR = 0x00000000;

+  EXTI->EMR = 0x00000000;

+  EXTI->RTSR = 0x00000000; 

+  EXTI->FTSR = 0x00000000; 

+  EXTI->PR = 0x0007FFFF;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_Init

+* Description    : Initializes the EXTI peripheral according to the specified

+*                  parameters in the EXTI_InitStruct.

+* Input          : - EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure

+*                    that contains the configuration information for the EXTI

+*                    peripheral.

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct)

+{

+  /* Check the parameters */

+  assert_param(IS_EXTI_MODE(EXTI_InitStruct->EXTI_Mode));

+  assert_param(IS_EXTI_TRIGGER(EXTI_InitStruct->EXTI_Trigger));

+  assert_param(IS_EXTI_LINE(EXTI_InitStruct->EXTI_Line));  

+  assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->EXTI_LineCmd));

+     

+  if (EXTI_InitStruct->EXTI_LineCmd != DISABLE)

+  {

+    /* Clear EXTI line configuration */

+    EXTI->IMR &= ~EXTI_InitStruct->EXTI_Line;

+    EXTI->EMR &= ~EXTI_InitStruct->EXTI_Line;

+    

+    *(vu32 *)(EXTI_BASE + (u32)EXTI_InitStruct->EXTI_Mode)|= EXTI_InitStruct->EXTI_Line;

+

+    /* Clear Rising Falling edge configuration */

+    EXTI->RTSR &= ~EXTI_InitStruct->EXTI_Line;

+    EXTI->FTSR &= ~EXTI_InitStruct->EXTI_Line;

+    

+    /* Select the trigger for the selected external interrupts */

+    if (EXTI_InitStruct->EXTI_Trigger == EXTI_Trigger_Rising_Falling)

+    {

+      /* Rising Falling edge */

+      EXTI->RTSR |= EXTI_InitStruct->EXTI_Line;

+      EXTI->FTSR |= EXTI_InitStruct->EXTI_Line;

+    }

+    else

+    {

+      *(vu32 *)(EXTI_BASE + (u32)EXTI_InitStruct->EXTI_Trigger)|= EXTI_InitStruct->EXTI_Line;

+    }

+  }

+  else

+  {

+    /* Disable the selected external lines */

+    *(vu32 *)(EXTI_BASE + (u32)EXTI_InitStruct->EXTI_Mode)&= ~EXTI_InitStruct->EXTI_Line;

+  }

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_StructInit

+* Description    : Fills each EXTI_InitStruct member with its reset value.

+* Input          : - EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure

+*                    which will be initialized.

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct)

+{

+  EXTI_InitStruct->EXTI_Line = EXTI_LineNone;

+  EXTI_InitStruct->EXTI_Mode = EXTI_Mode_Interrupt;

+  EXTI_InitStruct->EXTI_Trigger = EXTI_Trigger_Falling;

+  EXTI_InitStruct->EXTI_LineCmd = DISABLE;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_GenerateSWInterrupt

+* Description    : Generates a Software interrupt.

+* Input          : - EXTI_Line: specifies the EXTI lines to be enabled or

+*                    disabled.

+*                    This parameter can be any combination of EXTI_Linex where 

+*                    x can be (0..18).

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_GenerateSWInterrupt(u32 EXTI_Line)

+{

+  /* Check the parameters */

+  assert_param(IS_EXTI_LINE(EXTI_Line));

+  

+  EXTI->SWIER |= EXTI_Line;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_GetFlagStatus

+* Description    : Checks whether the specified EXTI line flag is set or not.

+* Input          : - EXTI_Line: specifies the EXTI line flag to check.

+*                    This parameter can be:

+*                       - EXTI_Linex: External interrupt line x where x(0..18)

+* Output         : None

+* Return         : The new state of EXTI_Line (SET or RESET).

+*******************************************************************************/

+FlagStatus EXTI_GetFlagStatus(u32 EXTI_Line)

+{

+  FlagStatus bitstatus = RESET;

+

+  /* Check the parameters */

+  assert_param(IS_GET_EXTI_LINE(EXTI_Line));

+  

+  if ((EXTI->PR & EXTI_Line) != (u32)RESET)

+  {

+    bitstatus = SET;

+  }

+  else

+  {

+    bitstatus = RESET;

+  }

+  return bitstatus;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_ClearFlag

+* Description    : Clears the EXTI’s line pending flags.

+* Input          : - EXTI_Line: specifies the EXTI lines flags to clear.

+*                    This parameter can be any combination of EXTI_Linex where 

+*                    x can be (0..18).

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_ClearFlag(u32 EXTI_Line)

+{

+  /* Check the parameters */

+  assert_param(IS_EXTI_LINE(EXTI_Line));

+  

+  EXTI->PR = EXTI_Line;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_GetITStatus

+* Description    : Checks whether the specified EXTI line is asserted or not.

+* Input          : - EXTI_Line: specifies the EXTI line to check.

+*                    This parameter can be:

+*                       - EXTI_Linex: External interrupt line x where x(0..18)

+* Output         : None

+* Return         : The new state of EXTI_Line (SET or RESET).

+*******************************************************************************/

+ITStatus EXTI_GetITStatus(u32 EXTI_Line)

+{

+  ITStatus bitstatus = RESET;

+  u32 enablestatus = 0;

+

+  /* Check the parameters */

+  assert_param(IS_GET_EXTI_LINE(EXTI_Line));

+  

+  enablestatus =  EXTI->IMR & EXTI_Line;

+

+  if (((EXTI->PR & EXTI_Line) != (u32)RESET) && (enablestatus != (u32)RESET))

+  {

+    bitstatus = SET;

+  }

+  else

+  {

+    bitstatus = RESET;

+  }

+  return bitstatus;

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_ClearITPendingBit

+* Description    : Clears the EXTI’s line pending bits.

+* Input          : - EXTI_Line: specifies the EXTI lines to clear.

+*                    This parameter can be any combination of EXTI_Linex where 

+*                    x can be (0..18).

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_ClearITPendingBit(u32 EXTI_Line)

+{

+  /* Check the parameters */

+  assert_param(IS_EXTI_LINE(EXTI_Line));

+  

+  EXTI->PR = EXTI_Line;

+}

+

+/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/