/***************************************************************************//** | |
* @file em_int.h | |
* @brief Interrupt enable/disable unit API | |
* @version 5.1.2 | |
******************************************************************************* | |
* @section License | |
* <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b> | |
******************************************************************************* | |
* | |
* Permission is granted to anyone to use this software for any purpose, | |
* including commercial applications, and to alter it and redistribute it | |
* freely, subject to the following restrictions: | |
* | |
* 1. The origin of this software must not be misrepresented; you must not | |
* claim that you wrote the original software. | |
* 2. Altered source versions must be plainly marked as such, and must not be | |
* misrepresented as being the original software. | |
* 3. This notice may not be removed or altered from any source distribution. | |
* | |
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no | |
* obligation to support this Software. Silicon Labs is providing the | |
* Software "AS IS", with no express or implied warranties of any kind, | |
* including, but not limited to, any implied warranties of merchantability | |
* or fitness for any particular purpose or warranties against infringement | |
* of any proprietary rights of a third party. | |
* | |
* Silicon Labs will not be liable for any consequential, incidental, or | |
* special damages, or any other relief, or for any claim by any third party, | |
* arising from your use of this Software. | |
* | |
******************************************************************************/ | |
#ifndef EM_INT_H | |
#define EM_INT_H | |
#include "em_device.h" | |
extern uint32_t INT_LockCnt; | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ | |
#ifndef UINT32_MAX | |
#define UINT32_MAX ((uint32_t)(0xFFFFFFFF)) | |
#endif | |
#warning "The INT module is deprecated and marked for removal in a later release. Please use the new CORE module instead. See \"Porting from em_int\" in the CORE documentation for instructions." | |
/** @endcond */ | |
/***************************************************************************//** | |
* @addtogroup emlib | |
* @{ | |
******************************************************************************/ | |
/***************************************************************************//** | |
* @addtogroup INT | |
* @{ | |
******************************************************************************/ | |
/***************************************************************************//** | |
* @brief | |
* Disable interrupts. | |
* | |
* @deprecated | |
* This function is deprecated and marked for removal in a later release. | |
* Please use the new CORE module instead. | |
* | |
* @details | |
* Disable interrupts and increment lock level counter. | |
* | |
* @return | |
* The resulting interrupt disable nesting level. | |
* | |
******************************************************************************/ | |
__STATIC_INLINE uint32_t INT_Disable(void) | |
{ | |
__disable_irq(); | |
if (INT_LockCnt < UINT32_MAX) | |
{ | |
INT_LockCnt++; | |
} | |
return INT_LockCnt; | |
} | |
/***************************************************************************//** | |
* @brief | |
* Enable interrupts. | |
* | |
* @deprecated | |
* This function is deprecated and marked for removal in a later release. | |
* Please use the new CORE module instead. | |
* | |
* @return | |
* The resulting interrupt disable nesting level. | |
* | |
* @details | |
* Decrement interrupt lock level counter and enable interrupts if counter | |
* reached zero. | |
* | |
******************************************************************************/ | |
__STATIC_INLINE uint32_t INT_Enable(void) | |
{ | |
uint32_t retVal; | |
if (INT_LockCnt > 0) | |
{ | |
INT_LockCnt--; | |
retVal = INT_LockCnt; | |
if (retVal == 0) | |
{ | |
__enable_irq(); | |
} | |
return retVal; | |
} | |
else | |
{ | |
return 0; | |
} | |
} | |
/** @} (end addtogroup INT) */ | |
/** @} (end addtogroup emlib) */ | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* EM_INT_H */ |