/**********************************************************************
* $Id$		lpc18xx_mcpwm.c		2011-06-02
*//**
* @file		lpc18xx_mcpwm.c
* @brief	Contains all functions support for Motor Control PWM firmware
* 			library on LPC18XX
* @version	1.0
* @date		02. June. 2011
* @author	NXP MCU SW Application Team
*
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers.  This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/

/* Peripheral group ----------------------------------------------------------- */
/** @addtogroup MCPWM
 * @{
 */

/* Includes ------------------------------------------------------------------- */
#include "lpc18xx_mcpwm.h"
#include "lpc18xx_cgu.h"

/* If this source file built with example, the LPC18xx FW library configuration
 * file in each example directory ("lpc18xx_libcfg.h") must be included,
 * otherwise the default FW library configuration file must be included instead
 */
#ifdef __BUILD_WITH_EXAMPLE__
#include "lpc18xx_libcfg.h"
#else
#include "lpc18xx_libcfg_default.h"
#endif /* __BUILD_WITH_EXAMPLE__ */

#ifdef _MCPWM

/* Public Functions ----------------------------------------------------------- */
/** @addtogroup MCPWM_Public_Functions
 * @{
 */

/*********************************************************************//**
 * @brief		Initializes the MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @return		None
 **********************************************************************/
void MCPWM_Init(LPC_MCPWM_Type *MCPWMx)
{
	/* Turn On MCPWM PCLK */
	//LPC_CGU->BASE_VPB1_CLK = (SRC_PL160M_0<<24) | (1<<11);
	CGU_EntityConnect(CGU_CLKSRC_PLL1, CGU_BASE_APB1);

	MCPWMx->CAP_CLR = MCPWM_CAPCLR_CAP(0) | MCPWM_CAPCLR_CAP(1) | MCPWM_CAPCLR_CAP(2);

	MCPWMx->INTF_CLR = MCPWM_INT_ILIM(0) | MCPWM_INT_ILIM(1) | MCPWM_INT_ILIM(2) \
								| MCPWM_INT_IMAT(0) | MCPWM_INT_IMAT(1) | MCPWM_INT_IMAT(2) \
								| MCPWM_INT_ICAP(0) | MCPWM_INT_ICAP(1) | MCPWM_INT_ICAP(2);

	MCPWMx->INTEN_CLR = MCPWM_INT_ILIM(0) | MCPWM_INT_ILIM(1) | MCPWM_INT_ILIM(2) \
								| MCPWM_INT_IMAT(0) | MCPWM_INT_IMAT(1) | MCPWM_INT_IMAT(2) \
								| MCPWM_INT_ICAP(0) | MCPWM_INT_ICAP(1) | MCPWM_INT_ICAP(2);
}


/*********************************************************************//**
 * @brief		Configures each channel in MCPWM peripheral according to the
 * 				specified parameters in the MCPWM_CHANNEL_CFG_Type.
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channelNum	Channel number, should be: 0..2.
 * @param[in]	channelSetup Pointer to a MCPWM_CHANNEL_CFG_Type structure
 * 				that contains the configuration information for the specified
 * 				MCPWM channel.
 * @return		None
 **********************************************************************/
void MCPWM_ConfigChannel(LPC_MCPWM_Type *MCPWMx, uint32_t channelNum,
						MCPWM_CHANNEL_CFG_Type * channelSetup)
{
	if (channelNum <= 2)
	{
		if (channelNum == MCPWM_CHANNEL_0)
		{
			MCPWMx->TC[0] = channelSetup->channelTimercounterValue;
			MCPWMx->LIM[0] = channelSetup->channelPeriodValue;
			MCPWMx->MAT[0] = channelSetup->channelPulsewidthValue;
		}
		else if (channelNum == MCPWM_CHANNEL_1)
		{
			MCPWMx->TC[1] = channelSetup->channelTimercounterValue;
			MCPWMx->LIM[1] = channelSetup->channelPeriodValue;
			MCPWMx->MAT[1] = channelSetup->channelPulsewidthValue;
		}
		else if (channelNum == MCPWM_CHANNEL_2)
		{
			MCPWMx->TC[2] = channelSetup->channelTimercounterValue;
			MCPWMx->LIM[2] = channelSetup->channelPeriodValue;
			MCPWMx->MAT[2] = channelSetup->channelPulsewidthValue;
		}
		else
		{
			return;
		}

		if (channelSetup->channelType == MCPWM_CHANNEL_CENTER_MODE)
		{
			MCPWMx->CON_SET = MCPWM_CON_CENTER(channelNum);
		}
		else
		{
			MCPWMx->CON_CLR = MCPWM_CON_CENTER(channelNum);
		}

		if (channelSetup->channelPolarity == MCPWM_CHANNEL_PASSIVE_HI)
		{
			MCPWMx->CON_SET = MCPWM_CON_POLAR(channelNum);
		}
		else
		{
			MCPWMx->CON_CLR = MCPWM_CON_POLAR(channelNum);
		}

		if (channelSetup->channelDeadtimeEnable == ENABLE)
		{
			MCPWMx->CON_SET = MCPWM_CON_DTE(channelNum);

			MCPWMx->DT &= ~(MCPWM_DT(channelNum, 0x3FF));

			MCPWMx->DT |= MCPWM_DT(channelNum, channelSetup->channelDeadtimeValue);
		}
		else
		{
			MCPWMx->CON_CLR = MCPWM_CON_DTE(channelNum);
		}

		if (channelSetup->channelUpdateEnable == ENABLE)
		{
			MCPWMx->CON_CLR = MCPWM_CON_DISUP(channelNum);
		}
		else
		{
			MCPWMx->CON_SET = MCPWM_CON_DISUP(channelNum);
		}
	}
}


/*********************************************************************//**
 * @brief		Write to MCPWM shadow registers - Update the value for period
 * 				and pulse width in MCPWM peripheral.
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channelNum	Channel Number, should be: 0..2.
 * @param[in]	channelSetup Pointer to a MCPWM_CHANNEL_CFG_Type structure
 * 				that contains the configuration information for the specified
 * 				MCPWM channel.
 * @return		None
 **********************************************************************/
void MCPWM_WriteToShadow(LPC_MCPWM_Type *MCPWMx, uint32_t channelNum,
													MCPWM_CHANNEL_CFG_Type *channelSetup)
{
	if (channelNum == MCPWM_CHANNEL_0)
	{
		MCPWMx->LIM[0] = channelSetup->channelPeriodValue;
		MCPWMx->MAT[0] = channelSetup->channelPulsewidthValue;
	}
	else if (channelNum == MCPWM_CHANNEL_1)
	{
		MCPWMx->LIM[1] = channelSetup->channelPeriodValue;
		MCPWMx->MAT[1] = channelSetup->channelPulsewidthValue;
	}
	else if (channelNum == MCPWM_CHANNEL_2)
	{
		MCPWMx->LIM[2] = channelSetup->channelPeriodValue;
		MCPWMx->MAT[2] = channelSetup->channelPulsewidthValue;
	}
}



/*********************************************************************//**
 * @brief		Configures capture function in MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channelNum	MCI (Motor Control Input pin) number, should be: 0..2
 * @param[in]	captureConfig	Pointer to a MCPWM_CAPTURE_CFG_Type structure
 * 				that contains the configuration information for the
 * 				specified MCPWM capture.
 * @return
 **********************************************************************/
void MCPWM_ConfigCapture(LPC_MCPWM_Type *MCPWMx, uint32_t channelNum,
												MCPWM_CAPTURE_CFG_Type *captureConfig)
{
	if ((channelNum <= MCPWM_CHANNEL_2))
	{

		if (captureConfig->captureFalling == ENABLE)
		{
			MCPWMx->CAPCON_SET = MCPWM_CAPCON_CAPMCI_FE(captureConfig->captureChannel, channelNum);
		}
		else
		{
			MCPWMx->CAPCON_CLR = MCPWM_CAPCON_CAPMCI_FE(captureConfig->captureChannel, channelNum);
		}

		if (captureConfig->captureRising == ENABLE)
		{
			MCPWMx->CAPCON_SET = MCPWM_CAPCON_CAPMCI_RE(captureConfig->captureChannel, channelNum);
		}
		else
		{
			MCPWMx->CAPCON_CLR = MCPWM_CAPCON_CAPMCI_RE(captureConfig->captureChannel, channelNum);
		}

		if (captureConfig->timerReset == ENABLE)
		{
			MCPWMx->CAPCON_SET = MCPWM_CAPCON_RT(captureConfig->captureChannel);
		}
		else
		{
			MCPWMx->CAPCON_CLR = MCPWM_CAPCON_RT(captureConfig->captureChannel);
		}

		if (captureConfig->hnfEnable == ENABLE)
		{
			MCPWMx->CAPCON_SET = MCPWM_CAPCON_HNFCAP(channelNum);
		}
		else
		{
			MCPWMx->CAPCON_CLR = MCPWM_CAPCON_HNFCAP(channelNum);
		}
	}
}


/*********************************************************************//**
 * @brief		Clears current captured value in specified capture channel
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	captureChannel	Capture channel number, should be: 0..2
 * @return		None
 **********************************************************************/
void MCPWM_ClearCapture(LPC_MCPWM_Type *MCPWMx, uint32_t captureChannel)
{
	MCPWMx->CAP_CLR = MCPWM_CAPCLR_CAP(captureChannel);
}

/*********************************************************************//**
 * @brief		Get current captured value in specified capture channel
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	captureChannel	Capture channel number, should be: 0..2
 * @return		None
 **********************************************************************/
uint32_t MCPWM_GetCapture(LPC_MCPWM_Type *MCPWMx, uint32_t captureChannel)
{
	if (captureChannel == MCPWM_CHANNEL_0)
	{
		return (MCPWMx->CAP[0]);
	}
	else if (captureChannel == MCPWM_CHANNEL_1)
	{
		return (MCPWMx->CAP[1]);
	}
	else if (captureChannel == MCPWM_CHANNEL_2)
	{
		return (MCPWMx->CAP[2]);
	}
	return (0);
}


/*********************************************************************//**
 * @brief		Configures Count control in MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channelNum	Channel number, should be: 0..2
 * @param[in]	countMode	Count mode, should be:
 * 					- ENABLE: Enables count mode.
 * 					- DISABLE: Disable count mode, the channel is in timer mode.
 * @param[in]	countConfig	Pointer to a MCPWM_COUNT_CFG_Type structure
 * 				that contains the configuration information for the
 * 				specified MCPWM count control.
 * @return		None
 **********************************************************************/
void MCPWM_CountConfig(LPC_MCPWM_Type *MCPWMx, uint32_t channelNum,
									uint32_t countMode, MCPWM_COUNT_CFG_Type *countConfig)
{
	if ((channelNum <= 2))
	{
		if (countMode == ENABLE)
		{
			MCPWMx->CNTCON_SET = MCPWM_CNTCON_CNTR(channelNum);

			if (countConfig->countFalling == ENABLE)
			{
				MCPWMx->CNTCON_SET = MCPWM_CNTCON_TCMCI_FE(countConfig->counterChannel,channelNum);
			}
			else
			{
				MCPWMx->CNTCON_CLR = MCPWM_CNTCON_TCMCI_FE(countConfig->counterChannel,channelNum);
			}

			if (countConfig->countRising == ENABLE)
			{
				MCPWMx->CNTCON_SET = MCPWM_CNTCON_TCMCI_RE(countConfig->counterChannel,channelNum);
			}
			else
			{
				MCPWMx->CNTCON_CLR = MCPWM_CNTCON_TCMCI_RE(countConfig->counterChannel,channelNum);
			}
		}
		else
		{
			MCPWMx->CNTCON_CLR = MCPWM_CNTCON_CNTR(channelNum);
		}
	}
}


/*********************************************************************//**
 * @brief		Start MCPWM activity for each MCPWM channel
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channel0 State of this command on channel 0:
 * 					- ENABLE: 'Start' command will effect on channel 0
 * 					- DISABLE: 'Start' command will not effect on channel 0
 * @param[in]	channel1 State of this command on channel 1:
 * 					- ENABLE: 'Start' command will effect on channel 1
 * 					- DISABLE: 'Start' command will not effect on channel 1
 * @param[in]	channel2 State of this command on channel 2:
 * 					- ENABLE: 'Start' command will effect on channel 2
 * 					- DISABLE: 'Start' command will not effect on channel 2
 * @return		None
 **********************************************************************/
void MCPWM_Start(LPC_MCPWM_Type *MCPWMx, uint32_t channel0,
									uint32_t channel1, uint32_t channel2)
{
	uint32_t regVal = 0;

	regVal = (channel0 ? MCPWM_CON_RUN(0) : 0) | (channel1 ? MCPWM_CON_RUN(1) : 0) \
				| (channel2 ? MCPWM_CON_RUN(2) : 0);

	MCPWMx->CON_SET = regVal;
}


/*********************************************************************//**
 * @brief		Stop MCPWM activity for each MCPWM channel
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	channel0 State of this command on channel 0:
 * 					- ENABLE: 'Stop' command will effect on channel 0
 * 					- DISABLE: 'Stop' command will not effect on channel 0
 * @param[in]	channel1 State of this command on channel 1:
 * 					- ENABLE: 'Stop' command will effect on channel 1
 * 					- DISABLE: 'Stop' command will not effect on channel 1
 * @param[in]	channel2 State of this command on channel 2:
 * 					- ENABLE: 'Stop' command will effect on channel 2
 * 					- DISABLE: 'Stop' command will not effect on channel 2
 * @return		None
 **********************************************************************/
void MCPWM_Stop(LPC_MCPWM_Type *MCPWMx, uint32_t channel0,
		uint32_t channel1, uint32_t channel2)
{
	uint32_t regVal = 0;

	regVal = (channel0 ? MCPWM_CON_RUN(0) : 0) | (channel1 ? MCPWM_CON_RUN(1) : 0) \
				| (channel2 ? MCPWM_CON_RUN(2) : 0);

	MCPWMx->CON_CLR = regVal;
}


/*********************************************************************//**
 * @brief		Enables/Disables 3-phase AC motor mode on MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	acMode	State of this command, should be:
 * 					- ENABLE.
 * 					- DISABLE.
 * @return		None
 **********************************************************************/
void MCPWM_ACMode(LPC_MCPWM_Type *MCPWMx, uint32_t acMode)
{
	if (acMode)
	{
		MCPWMx->CON_SET = MCPWM_CON_ACMODE;
	}
	else
	{
		MCPWMx->CON_CLR = MCPWM_CON_ACMODE;
	}
}


/*********************************************************************//**
 * @brief		Enables/Disables 3-phase DC motor mode on MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	dcMode	State of this command, should be:
 * 					- ENABLE.
 * 					- DISABLE.
 * @param[in]	outputInvered	Polarity of the MCOB outputs for all 3 channels,
 * 				should be:
 * 					- ENABLE	:The MCOB outputs have opposite polarity from the MCOA outputs.
 * 					- DISABLE	:The MCOB outputs have the same basic polarity as the MCOA outputs.
 * @param[in]	outputPattern	A value contains bits that enables/disables the specified
 * 				output pins route to the internal MCOA0 signal, should be:
 * 					- MCPWM_PATENT_A0	:MCOA0 tracks internal MCOA0
 * 					- MCPWM_PATENT_B0	:MCOB0 tracks internal MCOA0
 * 					- MCPWM_PATENT_A1	:MCOA1 tracks internal MCOA0
 * 					- MCPWM_PATENT_B1	:MCOB1 tracks internal MCOA0
 * 					- MCPWM_PATENT_A2	:MCOA2 tracks internal MCOA0
 * 					- MCPWM_PATENT_B2	:MCOB2 tracks internal MCOA0
 * @return		None
 *
 * Note: all these outputPatent values above can be ORed together for using as input parameter.
 **********************************************************************/
void MCPWM_DCMode(LPC_MCPWM_Type *MCPWMx, uint32_t dcMode,
					uint32_t outputInvered, uint32_t outputPattern)
{
	if (dcMode)
	{
		MCPWMx->CON_SET = MCPWM_CON_DCMODE;
	}
	else
	{
		MCPWMx->CON_CLR = MCPWM_CON_DCMODE;
	}

	if (outputInvered)
	{
		MCPWMx->CON_SET = MCPWM_CON_INVBDC;
	}
	else
	{
		MCPWMx->CON_CLR = MCPWM_CON_INVBDC;
	}

	MCPWMx->CCP = outputPattern;
}


/*********************************************************************//**
 * @brief		Configures the specified interrupt in MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	ulIntType	Interrupt type, should be:
 * 					- MCPWM_INTFLAG_LIM0	:Limit interrupt for channel (0)
 * 					- MCPWM_INTFLAG_MAT0	:Match interrupt for channel (0)
 * 					- MCPWM_INTFLAG_CAP0	:Capture interrupt for channel (0)
 * 					- MCPWM_INTFLAG_LIM1	:Limit interrupt for channel (1)
 * 					- MCPWM_INTFLAG_MAT1	:Match interrupt for channel (1)
 * 					- MCPWM_INTFLAG_CAP1	:Capture interrupt for channel (1)
 * 					- MCPWM_INTFLAG_LIM2	:Limit interrupt for channel (2)
 * 					- MCPWM_INTFLAG_MAT2	:Match interrupt for channel (2)
 * 					- MCPWM_INTFLAG_CAP2	:Capture interrupt for channel (2)
 * 					- MCPWM_INTFLAG_ABORT	:Fast abort interrupt
 * @param[in]	NewState	New State of this command, should be:
 * 					- ENABLE.
 * 					- DISABLE.
 * @return		None
 *
 * Note: all these ulIntType values above can be ORed together for using as input parameter.
 **********************************************************************/
void MCPWM_IntConfig(LPC_MCPWM_Type *MCPWMx, uint32_t ulIntType, FunctionalState NewState)
{
	if (NewState)
	{
		MCPWMx->INTEN_SET = ulIntType;
	}
	else
	{
		MCPWMx->INTEN_CLR = ulIntType;
	}
}


/*********************************************************************//**
 * @brief		Sets/Forces the specified interrupt for MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	ulIntType	Interrupt type, should be:
 * 					- MCPWM_INTFLAG_LIM0	:Limit interrupt for channel (0)
 * 					- MCPWM_INTFLAG_MAT0	:Match interrupt for channel (0)
 * 					- MCPWM_INTFLAG_CAP0	:Capture interrupt for channel (0)
 * 					- MCPWM_INTFLAG_LIM1	:Limit interrupt for channel (1)
 * 					- MCPWM_INTFLAG_MAT1	:Match interrupt for channel (1)
 * 					- MCPWM_INTFLAG_CAP1	:Capture interrupt for channel (1)
 * 					- MCPWM_INTFLAG_LIM2	:Limit interrupt for channel (2)
 * 					- MCPWM_INTFLAG_MAT2	:Match interrupt for channel (2)
 * 					- MCPWM_INTFLAG_CAP2	:Capture interrupt for channel (2)
 * 					- MCPWM_INTFLAG_ABORT	:Fast abort interrupt
 * @return		None
 * Note: all these ulIntType values above can be ORed together for using as input parameter.
 **********************************************************************/
void MCPWM_IntSet(LPC_MCPWM_Type *MCPWMx, uint32_t ulIntType)
{
	MCPWMx->INTF_SET = ulIntType;
}


/*********************************************************************//**
 * @brief		Clear the specified interrupt pending for MCPWM peripheral
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	ulIntType	Interrupt type, should be:
 * 					- MCPWM_INTFLAG_LIM0	:Limit interrupt for channel (0)
 * 					- MCPWM_INTFLAG_MAT0	:Match interrupt for channel (0)
 * 					- MCPWM_INTFLAG_CAP0	:Capture interrupt for channel (0)
 * 					- MCPWM_INTFLAG_LIM1	:Limit interrupt for channel (1)
 * 					- MCPWM_INTFLAG_MAT1	:Match interrupt for channel (1)
 * 					- MCPWM_INTFLAG_CAP1	:Capture interrupt for channel (1)
 * 					- MCPWM_INTFLAG_LIM2	:Limit interrupt for channel (2)
 * 					- MCPWM_INTFLAG_MAT2	:Match interrupt for channel (2)
 * 					- MCPWM_INTFLAG_CAP2	:Capture interrupt for channel (2)
 * 					- MCPWM_INTFLAG_ABORT	:Fast abort interrupt
 * @return		None
 * Note: all these ulIntType values above can be ORed together for using as input parameter.
 **********************************************************************/
void MCPWM_IntClear(LPC_MCPWM_Type *MCPWMx, uint32_t ulIntType)
{
	MCPWMx->INTF_CLR = ulIntType;
}


/*********************************************************************//**
 * @brief		Check whether if the specified interrupt in MCPWM is set or not
 * @param[in]	MCPWMx 	Motor Control PWM peripheral selected, should be: LPC_MCPWM
 * @param[in]	ulIntType	Interrupt type, should be:
 * 					- MCPWM_INTFLAG_LIM0	:Limit interrupt for channel (0)
 * 					- MCPWM_INTFLAG_MAT0	:Match interrupt for channel (0)
 * 					- MCPWM_INTFLAG_CAP0	:Capture interrupt for channel (0)
 * 					- MCPWM_INTFLAG_LIM1	:Limit interrupt for channel (1)
 * 					- MCPWM_INTFLAG_MAT1	:Match interrupt for channel (1)
 * 					- MCPWM_INTFLAG_CAP1	:Capture interrupt for channel (1)
 * 					- MCPWM_INTFLAG_LIM2	:Limit interrupt for channel (2)
 * 					- MCPWM_INTFLAG_MAT2	:Match interrupt for channel (2)
 * 					- MCPWM_INTFLAG_CAP2	:Capture interrupt for channel (2)
 * 					- MCPWM_INTFLAG_ABORT	:Fast abort interrupt
 * @return		None
 **********************************************************************/
FlagStatus MCPWM_GetIntStatus(LPC_MCPWM_Type *MCPWMx, uint32_t ulIntType)
{
	return ((MCPWMx->INTF & ulIntType) ? SET : RESET);
}

/**
 * @}
 */

#endif /* _MCPWM */
/**
 * @}
 */

/* --------------------------------- End Of File ------------------------------ */
