250 lines
6.8 KiB
C
250 lines
6.8 KiB
C
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/*
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* @brief LPC5410x RITimer driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2014
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __RITIMER_5410X_H_
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#define __RITIMER_5410X_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @defgroup RITIMER_5410X CHIP: LPC5410x Repetitive Interrupt Timer driver
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* @ingroup CHIP_5410X_DRIVERS
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* @{
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*/
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/**
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* @brief Repetitive Interrupt Timer register block structure
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*/
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typedef struct { /*!< RITIMER Structure */
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__IO uint32_t COMPVAL; /*!< Compare register */
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__IO uint32_t MASK; /*!< Mask register */
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__IO uint32_t CTRL; /*!< Control register */
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__IO uint32_t COUNTER; /*!< 32-bit counter */
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__IO uint32_t COMPVAL_H; /*!< Compare register, upper 16-bits */
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__IO uint32_t MASK_H; /*!< Compare register, upper 16-bits */
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__I uint32_t reserved;
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__IO uint32_t COUNTER_H; /*!< Counter register, upper 16-bits */
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} LPC_RITIMER_T;
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/*
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* @brief RITIMER register support bitfields and mask
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*/
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/*
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* RIT control register
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*/
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/** Set by H/W when the counter value equals the masked compare value */
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#define RIT_CTRL_INT ((uint32_t) (1))
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/** Set timer enable clear to 0 when the counter value equals the masked compare value */
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#define RIT_CTRL_ENCLR ((uint32_t) _BIT(1))
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/** Set timer enable on debug */
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#define RIT_CTRL_ENBR ((uint32_t) _BIT(2))
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/** Set timer enable */
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#define RIT_CTRL_TEN ((uint32_t) _BIT(3))
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/**
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* @brief Initialize the RIT
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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void Chip_RIT_Init(LPC_RITIMER_T *pRITimer);
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/**
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* @brief Shutdown the RIT
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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void Chip_RIT_DeInit(LPC_RITIMER_T *pRITimer);
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/**
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* @brief Enable Timer
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_Enable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL |= RIT_CTRL_TEN;
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}
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/**
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* @brief Disable Timer
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_Disable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL &= ~RIT_CTRL_TEN;
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}
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/**
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* @brief Enable timer debug
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_DebugEnable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL |= RIT_CTRL_ENBR;
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}
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/**
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* @brief Disable timer debug
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_DebugDisable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL &= ~RIT_CTRL_ENBR;
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}
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/**
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* @brief Enable clear on compare match
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_CompClearEnable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL |= RIT_CTRL_ENCLR;
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}
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/**
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* @brief Disable clear on compare match
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_CompClearDisable(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL &= ~RIT_CTRL_ENCLR;
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}
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/**
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* @brief Check whether interrupt flag is set or not
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* @param pRITimer : RITimer peripheral selected
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* @return Current interrupt status, either ET or UNSET
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*/
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IntStatus Chip_RIT_GetIntStatus(LPC_RITIMER_T *pRITimer);
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/**
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* @brief Set a tick value for the interrupt to time out
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* @param pRITimer : RITimer peripheral selected
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* @param val : value (in ticks) of the interrupt to be set
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* @return None
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*/
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STATIC INLINE void Chip_RIT_SetCOMPVAL(LPC_RITIMER_T *pRITimer, uint32_t val)
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{
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pRITimer->COMPVAL = val;
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pRITimer->COMPVAL_H = 0;
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}
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/**
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* @brief Set a tick value for the interrupt to time out (48-bits)
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* @param pRITimer : RITimer peripheral selected
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* @param val : value (in ticks) of the interrupt to be set, 48-bits max
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* @return None
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*/
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STATIC INLINE void Chip_RIT_SetCOMPVAL64(LPC_RITIMER_T *pRITimer, uint64_t val)
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{
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pRITimer->COMPVAL = (uint32_t) (val & 0xFFFFFFFF);
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pRITimer->COMPVAL_H = (uint32_t) ((val >> 32) & 0xFFFF);
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}
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/**
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* @brief Enables or clears the RIT or interrupt
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* @param pRITimer : RITimer peripheral selected
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* @param val : RIT to be set, one or more RIT_CTRL_* values
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* @return None
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*/
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STATIC INLINE void Chip_RIT_EnableCTRL(LPC_RITIMER_T *pRITimer, uint32_t val)
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{
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pRITimer->CTRL |= val;
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}
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/**
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* @brief Clears the RIT interrupt
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* @param pRITimer : RITimer peripheral selected
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* @return None
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*/
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STATIC INLINE void Chip_RIT_ClearInt(LPC_RITIMER_T *pRITimer)
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{
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pRITimer->CTRL |= RIT_CTRL_INT;
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}
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/**
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* @brief Returns the current RIT Counter value
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* @param pRITimer : RITimer peripheral selected
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* @return the current timer counter value
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*/
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STATIC INLINE uint32_t Chip_RIT_GetCounter(LPC_RITIMER_T *pRITimer)
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{
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return pRITimer->COUNTER;
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}
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/**
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* @brief Returns the current RIT Counter value (48-bit)
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* @param pRITimer : RITimer peripheral selected
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* @return the current timer counter value
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*/
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STATIC INLINE uint64_t Chip_RIT_GetCounter64(LPC_RITIMER_T *pRITimer)
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{
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uint64_t retVal;
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retVal = (uint64_t) pRITimer->COUNTER;
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retVal = retVal | (((uint64_t) pRITimer->COUNTER_H) << 32);
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return retVal;
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}
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/**
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* @brief Set timer interval value
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* @param pRITimer : RITimer peripheral selected
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* @param time_interval : timer interval value (ms)
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* @return None
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*/
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void Chip_RIT_SetTimerInterval(LPC_RITIMER_T *pRITimer, uint32_t time_interval);
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/**
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* @brief Set timer interval value (48-bit)
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* @param pRITimer : RITimer peripheral selected
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* @param time_interval : timer interval value (ms)
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* @return None
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*/
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void Chip_RIT_SetTimerInterval64(LPC_RITIMER_T *pRITimer, uint64_t time_interval);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __RITIMER_5410X_H_ */
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