206 lines
6.5 KiB
C
206 lines
6.5 KiB
C
/**************************************************************************//**
|
|
* @file nu_hwsem.h
|
|
* @brief HWSEM driver header file
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
|
|
*****************************************************************************/
|
|
#ifndef __NU_HWSEM_H__
|
|
#define __NU_HWSEM_H__
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
#ifdef __has_include
|
|
#if __has_include("rtconfig.h")
|
|
#include "rtconfig.h"
|
|
#endif
|
|
#endif
|
|
|
|
/** @addtogroup Standard_Driver Standard Driver
|
|
@{
|
|
*/
|
|
|
|
/** @addtogroup HWSEM_Driver HWSEM Driver
|
|
@{
|
|
*/
|
|
|
|
/** @addtogroup HWSEM_EXPORTED_CONSTANTS HWSEM Exported Constants
|
|
@{
|
|
*/
|
|
#define HWSEM_CNT 8ul /*!<HWSEM count \hideinitializer */
|
|
#define HWSEM_NOLOCK 0ul /*!<Semaphore is non-lock \hideinitializer */
|
|
#define HWSEM_LOCK_BY_A35 1ul /*!<Semaphore lock by A35 \hideinitializer */
|
|
#define HWSEM_LOCK_BY_M4 2ul /*!<Semaphore lock by M4 \hideinitializer */
|
|
|
|
#if defined(USE_MA35D1_SUBM)
|
|
#define HWSEM_LOCK_BY_OWNER HWSEM_LOCK_BY_M4
|
|
#define INTSTS_CORE INTSTSM4
|
|
#define INTEN_CORE INTENM4
|
|
#else
|
|
#define HWSEM_LOCK_BY_OWNER HWSEM_LOCK_BY_A35
|
|
#define INTSTS_CORE INTSTSA35
|
|
#define INTEN_CORE INTENA35
|
|
#endif
|
|
#define HWSEM_INTSTS_SEM0IF_Pos 0
|
|
#define HWSEM_INTSTS_SEM0IF_Msk (1<<HWSEM_INTSTS_SEM0IF_Pos)
|
|
#define HWSEM_INTEN_SEM0IEN_Pos 0
|
|
#define HWSEM_INTEN_SEM0IEN_Msk (1<<HWSEM_INTEN_SEM0IEN_Pos)
|
|
|
|
/*@}*/ /* end of group HWSEM_EXPORTED_CONSTANTS */
|
|
|
|
|
|
/** @addtogroup HWSEM_EXPORTED_FUNCTIONS HWSEM Exported Functions
|
|
@{
|
|
*/
|
|
|
|
/**
|
|
* @brief Reset hardware semaphore
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_RESET(hwsem, u32Num) ((hwsem)->CTL |= (HWSEM_CTL_SEM0RST_Msk << (u32Num)))
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
* @retval 0 The specified semaphore is not locked.
|
|
* Otherwise The specified semaphore is locked.
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_IS_LOCKED(hwsem, u32Num) ((hwsem)->SEM[(u32Num)] & (HWSEM_SEM_ID_Msk))
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
* @retval 0 The key of specified semaphore.
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_GET_KEY(hwsem, u32Num) (((hwsem)->SEM[(u32Num)]&HWSEM_SEM_KEY_Msk) >> HWSEM_SEM_KEY_Pos)
|
|
|
|
/**
|
|
* @brief Enable specified HWSEM interrupt
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_ENABLE_INT(hwsem, u32Num) ((hwsem)->INTEN_CORE |= (HWSEM_INTEN_SEM0IEN_Msk << (u32Num)))
|
|
|
|
|
|
/**
|
|
* @brief Disable specified HWSEM interrupt
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_DISABLE_INT(hwsem, u32Num) ((hwsem)->INTEN_CORE &= ~(HWSEM_INTEN_SEM0IEN_Msk << (u32Num)))
|
|
|
|
/**
|
|
* @brief Get specified interrupt flag
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
* @retval 0 The specified interrupt is not happened.
|
|
* Otherwise The specified interrupt is happened.
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_GET_INT_FLAG(hwsem, u32Num) ((hwsem)->INTSTS_CORE & (HWSEM_INTSTS_SEM0IF_Msk << (u32Num)))
|
|
|
|
|
|
/**
|
|
* @brief Clear specified interrupt flag
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_CLR_INT_FLAG(hwsem, u32Num) ((hwsem)->INTSTS_CORE = (HWSEM_INTSTS_SEM0IF_Msk << (u32Num)))
|
|
|
|
|
|
/**
|
|
* @brief Unlock specified semaphore
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
* @param[in] u8Key HWSEM channel key
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
#define HWSEM_UNLOCK(hwsem, u32Num, u8Key) ((hwsem)->SEM[(u32Num)] = ((u8Key) << HWSEM_SEM_KEY_Pos) & HWSEM_SEM_KEY_Msk)
|
|
#define HWSEM_LOCK HWSEM_UNLOCK
|
|
|
|
/* Declare these inline functions here to avoid MISRA C 2004 rule 8.1 error */
|
|
__STATIC_INLINE int32_t HWSEM_Try_Lock(HWSEM_T *hwsem, uint32_t u32Num, uint8_t u8Key);
|
|
__STATIC_INLINE void HWSEM_Spin_Lock(HWSEM_T *hwsem, uint32_t u32Num, uint8_t u8Key);
|
|
|
|
/**
|
|
* @brief Try to lock specified semaphore
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
* @param[in] u8Key HWSEM channel key
|
|
* @retval 0 Successfully acquire semaphore
|
|
* @retval -1 Failed to acquire semaphore
|
|
* \hideinitializer
|
|
*/
|
|
__STATIC_INLINE int32_t HWSEM_Try_Lock(HWSEM_T *hwsem, uint32_t u32Num, uint8_t u8Key)
|
|
{
|
|
hwsem->SEM[u32Num] = (u8Key << HWSEM_SEM_KEY_Pos);
|
|
if ((hwsem->SEM[u32Num] & HWSEM_SEM_ID_Msk) == HWSEM_LOCK_BY_OWNER &&
|
|
(hwsem->SEM[u32Num] & HWSEM_SEM_KEY_Msk) == (u8Key << HWSEM_SEM_KEY_Pos))
|
|
return 0;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Spin until lock specified semaphore
|
|
*
|
|
* @param[in] hwsem The pointer of the specified HWSEM module.
|
|
* @param[in] u32Num HWSEM number, valid values are between 0~7
|
|
* @param[in] u8Key HWSEM channel key
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
__STATIC_INLINE void HWSEM_Spin_Lock(HWSEM_T *hwsem, uint32_t u32Num, uint8_t u8Key)
|
|
{
|
|
while (1)
|
|
{
|
|
hwsem->SEM[u32Num] = (u8Key << HWSEM_SEM_KEY_Pos);
|
|
if ((hwsem->SEM[u32Num] & HWSEM_SEM_ID_Msk) == HWSEM_LOCK_BY_OWNER &&
|
|
(hwsem->SEM[u32Num] & HWSEM_SEM_KEY_Msk) == (u8Key << HWSEM_SEM_KEY_Pos))
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*@}*/ /* end of group HWSEM_EXPORTED_FUNCTIONS */
|
|
|
|
/*@}*/ /* end of group HWSEM_Driver */
|
|
|
|
/*@}*/ /* end of group Standard_Driver */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|