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rt-thread-official/bsp/lpc54114-lite/Libraries/devices/LPC54114/drivers/fsl_ctimer.h

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/*
* The Clear BSD License
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted (subject to the limitations in the disclaimer below) provided
* that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
* 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.
*/
#ifndef _FSL_CTIMER_H_
#define _FSL_CTIMER_H_
#include "fsl_common.h"
/*!
* @addtogroup ctimer
* @{
*/
/*! @file */
/*******************************************************************************
* Definitions
******************************************************************************/
/*! @name Driver version */
/*@{*/
#define FSL_CTIMER_DRIVER_VERSION (MAKE_VERSION(2, 0, 1)) /*!< Version 2.0.1 */
/*@}*/
/*! @brief List of Timer capture channels */
typedef enum _ctimer_capture_channel
{
kCTIMER_Capture_0 = 0U, /*!< Timer capture channel 0 */
kCTIMER_Capture_1, /*!< Timer capture channel 1 */
kCTIMER_Capture_2, /*!< Timer capture channel 2 */
#if defined(FSL_FEATURE_CTIMER_HAS_CCR_CAP3) && FSL_FEATURE_CTIMER_HAS_CCR_CAP3
kCTIMER_Capture_3 /*!< Timer capture channel 3 */
#endif /* FSL_FEATURE_CTIMER_HAS_IR_CR3INT */
} ctimer_capture_channel_t;
/*! @brief List of capture edge options */
typedef enum _ctimer_capture_edge
{
kCTIMER_Capture_RiseEdge = 1U, /*!< Capture on rising edge */
kCTIMER_Capture_FallEdge = 2U, /*!< Capture on falling edge */
kCTIMER_Capture_BothEdge = 3U, /*!< Capture on rising and falling edge */
} ctimer_capture_edge_t;
/*! @brief List of Timer match registers */
typedef enum _ctimer_match
{
kCTIMER_Match_0 = 0U, /*!< Timer match register 0 */
kCTIMER_Match_1, /*!< Timer match register 1 */
kCTIMER_Match_2, /*!< Timer match register 2 */
kCTIMER_Match_3 /*!< Timer match register 3 */
} ctimer_match_t;
/*! @brief List of output control options */
typedef enum _ctimer_match_output_control
{
kCTIMER_Output_NoAction = 0U, /*!< No action is taken */
kCTIMER_Output_Clear, /*!< Clear the EM bit/output to 0 */
kCTIMER_Output_Set, /*!< Set the EM bit/output to 1 */
kCTIMER_Output_Toggle /*!< Toggle the EM bit/output */
} ctimer_match_output_control_t;
/*! @brief List of Timer modes */
typedef enum _ctimer_timer_mode
{
kCTIMER_TimerMode = 0U, /* TC is incremented every rising APB bus clock edge */
kCTIMER_IncreaseOnRiseEdge, /* TC is incremented on rising edge of input signal */
kCTIMER_IncreaseOnFallEdge, /* TC is incremented on falling edge of input signal */
kCTIMER_IncreaseOnBothEdge /* TC is incremented on both edges of input signal */
} ctimer_timer_mode_t;
/*! @brief List of Timer interrupts */
typedef enum _ctimer_interrupt_enable
{
kCTIMER_Match0InterruptEnable = CTIMER_MCR_MR0I_MASK, /*!< Match 0 interrupt */
kCTIMER_Match1InterruptEnable = CTIMER_MCR_MR1I_MASK, /*!< Match 1 interrupt */
kCTIMER_Match2InterruptEnable = CTIMER_MCR_MR2I_MASK, /*!< Match 2 interrupt */
kCTIMER_Match3InterruptEnable = CTIMER_MCR_MR3I_MASK, /*!< Match 3 interrupt */
kCTIMER_Capture0InterruptEnable = CTIMER_CCR_CAP0I_MASK, /*!< Capture 0 interrupt */
kCTIMER_Capture1InterruptEnable = CTIMER_CCR_CAP1I_MASK, /*!< Capture 1 interrupt */
kCTIMER_Capture2InterruptEnable = CTIMER_CCR_CAP2I_MASK, /*!< Capture 2 interrupt */
#if defined(FSL_FEATURE_CTIMER_HAS_CCR_CAP3) && FSL_FEATURE_CTIMER_HAS_CCR_CAP3
kCTIMER_Capture3InterruptEnable = CTIMER_CCR_CAP3I_MASK, /*!< Capture 3 interrupt */
#endif /* FSL_FEATURE_CTIMER_HAS_CCR_CAP3 */
} ctimer_interrupt_enable_t;
/*! @brief List of Timer flags */
typedef enum _ctimer_status_flags
{
kCTIMER_Match0Flag = CTIMER_IR_MR0INT_MASK, /*!< Match 0 interrupt flag */
kCTIMER_Match1Flag = CTIMER_IR_MR1INT_MASK, /*!< Match 1 interrupt flag */
kCTIMER_Match2Flag = CTIMER_IR_MR2INT_MASK, /*!< Match 2 interrupt flag */
kCTIMER_Match3Flag = CTIMER_IR_MR3INT_MASK, /*!< Match 3 interrupt flag */
kCTIMER_Capture0Flag = CTIMER_IR_CR0INT_MASK, /*!< Capture 0 interrupt flag */
kCTIMER_Capture1Flag = CTIMER_IR_CR1INT_MASK, /*!< Capture 1 interrupt flag */
kCTIMER_Capture2Flag = CTIMER_IR_CR2INT_MASK, /*!< Capture 2 interrupt flag */
#if defined(FSL_FEATURE_CTIMER_HAS_IR_CR3INT) && FSL_FEATURE_CTIMER_HAS_IR_CR3INT
kCTIMER_Capture3Flag = CTIMER_IR_CR3INT_MASK, /*!< Capture 3 interrupt flag */
#endif /* FSL_FEATURE_CTIMER_HAS_IR_CR3INT */
} ctimer_status_flags_t;
typedef void (*ctimer_callback_t)(uint32_t flags);
/*! @brief Callback type when registering for a callback. When registering a callback
* an array of function pointers is passed the size could be 1 or 8, the callback
* type will tell that.
*/
typedef enum
{
kCTIMER_SingleCallback, /*!< Single Callback type where there is only one callback for the timer.
based on the status flags different channels needs to be handled differently */
kCTIMER_MultipleCallback /*!< Multiple Callback type where there can be 8 valid callbacks, one per channel.
for both match/capture */
} ctimer_callback_type_t;
/*!
* @brief Match configuration
*
* This structure holds the configuration settings for each match register.
*/
typedef struct _ctimer_match_config
{
uint32_t matchValue; /*!< This is stored in the match register */
bool enableCounterReset; /*!< true: Match will reset the counter
false: Match will not reser the counter */
bool enableCounterStop; /*!< true: Match will stop the counter
false: Match will not stop the counter */
ctimer_match_output_control_t outControl; /*!< Action to be taken on a match on the EM bit/output */
bool outPinInitState; /*!< Initial value of the EM bit/output */
bool enableInterrupt; /*!< true: Generate interrupt upon match
false: Do not generate interrupt on match */
} ctimer_match_config_t;
/*!
* @brief Timer configuration structure
*
* This structure holds the configuration settings for the Timer peripheral. To initialize this
* structure to reasonable defaults, call the CTIMER_GetDefaultConfig() function and pass a
* pointer to the configuration structure instance.
*
* The configuration structure can be made constant so as to reside in flash.
*/
typedef struct _ctimer_config
{
ctimer_timer_mode_t mode; /*!< Timer mode */
ctimer_capture_channel_t input; /*!< Input channel to increment the timer, used only in timer
modes that rely on this input signal to increment TC */
uint32_t prescale; /*!< Prescale value */
} ctimer_config_t;
/*******************************************************************************
* API
******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
/*!
* @name Initialization and deinitialization
* @{
*/
/*!
* @brief Ungates the clock and configures the peripheral for basic operation.
*
* @note This API should be called at the beginning of the application before using the driver.
*
* @param base Ctimer peripheral base address
* @param config Pointer to the user configuration structure.
*/
void CTIMER_Init(CTIMER_Type *base, const ctimer_config_t *config);
/*!
* @brief Gates the timer clock.
*
* @param base Ctimer peripheral base address
*/
void CTIMER_Deinit(CTIMER_Type *base);
/*!
* @brief Fills in the timers configuration structure with the default settings.
*
* The default values are:
* @code
* config->mode = kCTIMER_TimerMode;
* config->input = kCTIMER_Capture_0;
* config->prescale = 0;
* @endcode
* @param config Pointer to the user configuration structure.
*/
void CTIMER_GetDefaultConfig(ctimer_config_t *config);
/*! @}*/
/*!
* @name PWM setup operations
* @{
*/
/*!
* @brief Configures the PWM signal parameters.
*
* Enables PWM mode on the match channel passed in and will then setup the match value
* and other match parameters to generate a PWM signal.
* This function will assign match channel 3 to set the PWM cycle.
*
* @note When setting PWM output from multiple output pins, all should use the same PWM
* period
*
* @param base Ctimer peripheral base address
* @param matchChannel Match pin to be used to output the PWM signal
* @param pwmPeriod PWM period match value
* @param pulsePeriod Pulse width match value
* @param enableInt Enable interrupt when the timer value reaches the match value of the PWM pulse,
* if it is 0 then no interrupt is generated
*
* @return kStatus_Success on success
* kStatus_Fail If matchChannel passed in is 3; this channel is reserved to set the PWM period
*/
status_t CTIMER_SetupPwmPeriod(CTIMER_Type *base,
ctimer_match_t matchChannel,
uint32_t pwmPeriod,
uint32_t pulsePeriod,
bool enableInt);
/*!
* @brief Configures the PWM signal parameters.
*
* Enables PWM mode on the match channel passed in and will then setup the match value
* and other match parameters to generate a PWM signal.
* This function will assign match channel 3 to set the PWM cycle.
*
* @note When setting PWM output from multiple output pins, all should use the same PWM
* frequency. Please use CTIMER_SetupPwmPeriod to set up the PWM with high resolution.
*
* @param base Ctimer peripheral base address
* @param matchChannel Match pin to be used to output the PWM signal
* @param dutyCyclePercent PWM pulse width; the value should be between 0 to 100
* @param pwmFreq_Hz PWM signal frequency in Hz
* @param srcClock_Hz Timer counter clock in Hz
* @param enableInt Enable interrupt when the timer value reaches the match value of the PWM pulse,
* if it is 0 then no interrupt is generated
*
* @return kStatus_Success on success
* kStatus_Fail If matchChannel passed in is 3; this channel is reserved to set the PWM cycle
*/
status_t CTIMER_SetupPwm(CTIMER_Type *base,
ctimer_match_t matchChannel,
uint8_t dutyCyclePercent,
uint32_t pwmFreq_Hz,
uint32_t srcClock_Hz,
bool enableInt);
/*!
* @brief Updates the pulse period of an active PWM signal.
*
* @param base Ctimer peripheral base address
* @param matchChannel Match pin to be used to output the PWM signal
* @param pulsePeriod New PWM pulse width match value
*/
static inline void CTIMER_UpdatePwmPulsePeriod(CTIMER_Type *base, ctimer_match_t matchChannel, uint32_t pulsePeriod)
{
/* Update PWM pulse period match value */
base->MR[matchChannel] = pulsePeriod;
}
/*!
* @brief Updates the duty cycle of an active PWM signal.
*
* @note Please use CTIMER_UpdatePwmPulsePeriod to update the PWM with high resolution.
*
* @param base Ctimer peripheral base address
* @param matchChannel Match pin to be used to output the PWM signal
* @param dutyCyclePercent New PWM pulse width; the value should be between 0 to 100
*/
void CTIMER_UpdatePwmDutycycle(CTIMER_Type *base, ctimer_match_t matchChannel, uint8_t dutyCyclePercent);
/*! @}*/
/*!
* @brief Setup the match register.
*
* User configuration is used to setup the match value and action to be taken when a match occurs.
*
* @param base Ctimer peripheral base address
* @param matchChannel Match register to configure
* @param config Pointer to the match configuration structure
*/
void CTIMER_SetupMatch(CTIMER_Type *base, ctimer_match_t matchChannel, const ctimer_match_config_t *config);
/*!
* @brief Setup the capture.
*
* @param base Ctimer peripheral base address
* @param capture Capture channel to configure
* @param edge Edge on the channel that will trigger a capture
* @param enableInt Flag to enable channel interrupts, if enabled then the registered call back
* is called upon capture
*/
void CTIMER_SetupCapture(CTIMER_Type *base,
ctimer_capture_channel_t capture,
ctimer_capture_edge_t edge,
bool enableInt);
/*!
* @brief Register callback.
*
* @param base Ctimer peripheral base address
* @param cb_func callback function
* @param cb_type callback function type, singular or multiple
*/
void CTIMER_RegisterCallBack(CTIMER_Type *base, ctimer_callback_t *cb_func, ctimer_callback_type_t cb_type);
/*!
* @name Interrupt Interface
* @{
*/
/*!
* @brief Enables the selected Timer interrupts.
*
* @param base Ctimer peripheral base address
* @param mask The interrupts to enable. This is a logical OR of members of the
* enumeration ::ctimer_interrupt_enable_t
*/
static inline void CTIMER_EnableInterrupts(CTIMER_Type *base, uint32_t mask)
{
/* Enable match interrupts */
base->MCR |= mask & (CTIMER_MCR_MR0I_MASK | CTIMER_MCR_MR1I_MASK | CTIMER_MCR_MR2I_MASK | CTIMER_MCR_MR3I_MASK);
/* Enable capture interrupts */
base->CCR |= mask & (CTIMER_CCR_CAP0I_MASK | CTIMER_CCR_CAP1I_MASK | CTIMER_CCR_CAP2I_MASK
#if defined(FSL_FEATURE_CTIMER_HAS_CCR_CAP3) && FSL_FEATURE_CTIMER_HAS_CCR_CAP3
| CTIMER_CCR_CAP3I_MASK
#endif /* FSL_FEATURE_CTIMER_HAS_CCR_CAP3 */
);
}
/*!
* @brief Disables the selected Timer interrupts.
*
* @param base Ctimer peripheral base address
* @param mask The interrupts to enable. This is a logical OR of members of the
* enumeration ::ctimer_interrupt_enable_t
*/
static inline void CTIMER_DisableInterrupts(CTIMER_Type *base, uint32_t mask)
{
/* Disable match interrupts */
base->MCR &= ~(mask & (CTIMER_MCR_MR0I_MASK | CTIMER_MCR_MR1I_MASK | CTIMER_MCR_MR2I_MASK | CTIMER_MCR_MR3I_MASK));
/* Disable capture interrupts */
base->CCR &= ~(mask & (CTIMER_CCR_CAP0I_MASK | CTIMER_CCR_CAP1I_MASK | CTIMER_CCR_CAP2I_MASK
#if defined(FSL_FEATURE_CTIMER_HAS_CCR_CAP3) && FSL_FEATURE_CTIMER_HAS_CCR_CAP3
| CTIMER_CCR_CAP3I_MASK
#endif /* FSL_FEATURE_CTIMER_HAS_CCR_CAP3 */
));
}
/*!
* @brief Gets the enabled Timer interrupts.
*
* @param base Ctimer peripheral base address
*
* @return The enabled interrupts. This is the logical OR of members of the
* enumeration ::ctimer_interrupt_enable_t
*/
static inline uint32_t CTIMER_GetEnabledInterrupts(CTIMER_Type *base)
{
uint32_t enabledIntrs = 0;
/* Get all the match interrupts enabled */
enabledIntrs =
base->MCR & (CTIMER_MCR_MR0I_MASK | CTIMER_MCR_MR1I_MASK | CTIMER_MCR_MR2I_MASK | CTIMER_MCR_MR3I_MASK);
/* Get all the capture interrupts enabled */
enabledIntrs |= base->CCR & (CTIMER_CCR_CAP0I_MASK | CTIMER_CCR_CAP1I_MASK | CTIMER_CCR_CAP2I_MASK
#if defined(FSL_FEATURE_CTIMER_HAS_CCR_CAP3) && FSL_FEATURE_CTIMER_HAS_CCR_CAP3
| CTIMER_CCR_CAP3I_MASK
#endif /* FSL_FEATURE_CTIMER_HAS_CCR_CAP3 */
);
return enabledIntrs;
}
/*! @}*/
/*!
* @name Status Interface
* @{
*/
/*!
* @brief Gets the Timer status flags.
*
* @param base Ctimer peripheral base address
*
* @return The status flags. This is the logical OR of members of the
* enumeration ::ctimer_status_flags_t
*/
static inline uint32_t CTIMER_GetStatusFlags(CTIMER_Type *base)
{
return base->IR;
}
/*!
* @brief Clears the Timer status flags.
*
* @param base Ctimer peripheral base address
* @param mask The status flags to clear. This is a logical OR of members of the
* enumeration ::ctimer_status_flags_t
*/
static inline void CTIMER_ClearStatusFlags(CTIMER_Type *base, uint32_t mask)
{
base->IR = mask;
}
/*! @}*/
/*!
* @name Counter Start and Stop
* @{
*/
/*!
* @brief Starts the Timer counter.
*
* @param base Ctimer peripheral base address
*/
static inline void CTIMER_StartTimer(CTIMER_Type *base)
{
base->TCR |= CTIMER_TCR_CEN_MASK;
}
/*!
* @brief Stops the Timer counter.
*
* @param base Ctimer peripheral base address
*/
static inline void CTIMER_StopTimer(CTIMER_Type *base)
{
base->TCR &= ~CTIMER_TCR_CEN_MASK;
}
/*! @}*/
/*!
* @brief Reset the counter.
*
* The timer counter and prescale counter are reset on the next positive edge of the APB clock.
*
* @param base Ctimer peripheral base address
*/
static inline void CTIMER_Reset(CTIMER_Type *base)
{
base->TCR |= CTIMER_TCR_CRST_MASK;
base->TCR &= ~CTIMER_TCR_CRST_MASK;
}
#if defined(__cplusplus)
}
#endif
/*! @}*/
#endif /* _FSL_CTIMER_H_ */
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