added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
Diff: targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_tpm.c
- Revision:
- 144:ef7eb2e8f9f7
diff -r 423e1876dc07 -r ef7eb2e8f9f7 targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_tpm.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_tpm.c Fri Sep 02 15:07:44 2016 +0100 @@ -0,0 +1,725 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted 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 Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 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. + */ + +#include "fsl_tpm.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ +#define TPM_COMBINE_SHIFT (8U) + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Gets the instance from the base address + * + * @param base TPM peripheral base address + * + * @return The TPM instance + */ +static uint32_t TPM_GetInstance(TPM_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to TPM bases for each instance. */ +static TPM_Type *const s_tpmBases[] = TPM_BASE_PTRS; + +/*! @brief Pointers to TPM clocks for each instance. */ +static const clock_ip_name_t s_tpmClocks[] = TPM_CLOCKS; + +/******************************************************************************* + * Code + ******************************************************************************/ +static uint32_t TPM_GetInstance(TPM_Type *base) +{ + uint32_t instance; + uint32_t tpmArrayCount = (sizeof(s_tpmBases) / sizeof(s_tpmBases[0])); + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < tpmArrayCount; instance++) + { + if (s_tpmBases[instance] == base) + { + break; + } + } + + assert(instance < tpmArrayCount); + + return instance; +} + +void TPM_Init(TPM_Type *base, const tpm_config_t *config) +{ + assert(config); + + /* Enable the module clock */ + CLOCK_EnableClock(s_tpmClocks[TPM_GetInstance(base)]); + +#if defined(FSL_FEATURE_TPM_HAS_GLOBAL) && FSL_FEATURE_TPM_HAS_GLOBAL + /* TPM reset is available on certain SoC's */ + TPM_Reset(base); +#endif + + /* Set the clock prescale factor */ + base->SC = TPM_SC_PS(config->prescale); + + /* Setup the counter operation */ + base->CONF = TPM_CONF_DOZEEN(config->enableDoze) | TPM_CONF_GTBEEN(config->useGlobalTimeBase) | + TPM_CONF_CROT(config->enableReloadOnTrigger) | TPM_CONF_CSOT(config->enableStartOnTrigger) | + TPM_CONF_CSOO(config->enableStopOnOverflow) | +#if defined(FSL_FEATURE_TPM_HAS_PAUSE_COUNTER_ON_TRIGGER) && FSL_FEATURE_TPM_HAS_PAUSE_COUNTER_ON_TRIGGER + TPM_CONF_CPOT(config->enablePauseOnTrigger) | +#endif +#if defined(FSL_FEATURE_TPM_HAS_EXTERNAL_TRIGGER_SELECTION) && FSL_FEATURE_TPM_HAS_EXTERNAL_TRIGGER_SELECTION + TPM_CONF_TRGSRC(config->triggerSource) | +#endif + TPM_CONF_TRGSEL(config->triggerSelect); + if (config->enableDebugMode) + { + base->CONF |= TPM_CONF_DBGMODE_MASK; + } + else + { + base->CONF &= ~TPM_CONF_DBGMODE_MASK; + } +} + +void TPM_Deinit(TPM_Type *base) +{ + /* Stop the counter */ + base->SC &= ~TPM_SC_CMOD_MASK; + /* Gate the TPM clock */ + CLOCK_DisableClock(s_tpmClocks[TPM_GetInstance(base)]); +} + +void TPM_GetDefaultConfig(tpm_config_t *config) +{ + assert(config); + + /* TPM clock divide by 1 */ + config->prescale = kTPM_Prescale_Divide_1; + /* Use internal TPM counter as timebase */ + config->useGlobalTimeBase = false; + /* TPM counter continues in doze mode */ + config->enableDoze = false; + /* TPM counter pauses when in debug mode */ + config->enableDebugMode = false; + /* TPM counter will not be reloaded on input trigger */ + config->enableReloadOnTrigger = false; + /* TPM counter continues running after overflow */ + config->enableStopOnOverflow = false; + /* TPM counter starts immediately once it is enabled */ + config->enableStartOnTrigger = false; +#if defined(FSL_FEATURE_TPM_HAS_PAUSE_COUNTER_ON_TRIGGER) && FSL_FEATURE_TPM_HAS_PAUSE_COUNTER_ON_TRIGGER + config->enablePauseOnTrigger = false; +#endif + /* Choose trigger select 0 as input trigger for controlling counter operation */ + config->triggerSelect = kTPM_Trigger_Select_0; +#if defined(FSL_FEATURE_TPM_HAS_EXTERNAL_TRIGGER_SELECTION) && FSL_FEATURE_TPM_HAS_EXTERNAL_TRIGGER_SELECTION + /* Choose external trigger source to control counter operation */ + config->triggerSource = kTPM_TriggerSource_External; +#endif +} + +status_t TPM_SetupPwm(TPM_Type *base, + const tpm_chnl_pwm_signal_param_t *chnlParams, + uint8_t numOfChnls, + tpm_pwm_mode_t mode, + uint32_t pwmFreq_Hz, + uint32_t srcClock_Hz) +{ + assert(chnlParams); + assert(pwmFreq_Hz); + assert(numOfChnls); + assert(srcClock_Hz); + + uint32_t mod; + uint32_t tpmClock = (srcClock_Hz / (1U << (base->SC & TPM_SC_PS_MASK))); + uint16_t cnv; + uint8_t i; + +#if defined(FSL_FEATURE_TPM_HAS_QDCTRL) && FSL_FEATURE_TPM_HAS_QDCTRL + /* Clear quadrature Decoder mode because in quadrature Decoder mode PWM doesn't operate*/ + base->QDCTRL &= ~TPM_QDCTRL_QUADEN_MASK; +#endif + + switch (mode) + { + case kTPM_EdgeAlignedPwm: +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + case kTPM_CombinedPwm: +#endif + base->SC &= ~TPM_SC_CPWMS_MASK; + mod = (tpmClock / pwmFreq_Hz) - 1; + break; + case kTPM_CenterAlignedPwm: + base->SC |= TPM_SC_CPWMS_MASK; + mod = tpmClock / (pwmFreq_Hz * 2); + break; + default: + return kStatus_Fail; + } + + /* Return an error in case we overflow the registers, probably would require changing + * clock source to get the desired frequency */ + if (mod > 65535U) + { + return kStatus_Fail; + } + /* Set the PWM period */ + base->MOD = mod; + + /* Setup each TPM channel */ + for (i = 0; i < numOfChnls; i++) + { + /* Return error if requested dutycycle is greater than the max allowed */ + if (chnlParams->dutyCyclePercent > 100) + { + return kStatus_Fail; + } +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + if (mode == kTPM_CombinedPwm) + { + uint16_t cnvFirstEdge; + + /* This check is added for combined mode as the channel number should be the pair number */ + if (chnlParams->chnlNumber >= (FSL_FEATURE_TPM_CHANNEL_COUNTn(base) / 2)) + { + return kStatus_Fail; + } + + /* Return error if requested value is greater than the max allowed */ + if (chnlParams->firstEdgeDelayPercent > 100) + { + return kStatus_Fail; + } + /* Configure delay of the first edge */ + if (chnlParams->firstEdgeDelayPercent == 0) + { + /* No delay for the first edge */ + cnvFirstEdge = 0; + } + else + { + cnvFirstEdge = (mod * chnlParams->firstEdgeDelayPercent) / 100; + } + /* Configure dutycycle */ + if (chnlParams->dutyCyclePercent == 0) + { + /* Signal stays low */ + cnv = 0; + cnvFirstEdge = 0; + } + else + { + cnv = (mod * chnlParams->dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + } + + /* Set the combine bit for the channel pair */ + base->COMBINE |= (1U << (TPM_COMBINE_COMBINE0_SHIFT + (TPM_COMBINE_SHIFT * chnlParams->chnlNumber))); + + /* When switching mode, disable channel n first */ + base->CONTROLS[chnlParams->chnlNumber * 2].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlParams->chnlNumber * 2].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Set the requested PWM mode for channel n, PWM output requires mode select to be set to 2 */ + base->CONTROLS[chnlParams->chnlNumber * 2].CnSC |= + ((chnlParams->level << TPM_CnSC_ELSA_SHIFT) | (2U << TPM_CnSC_MSA_SHIFT)); + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[chnlParams->chnlNumber * 2].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + /* Set the channel pair values */ + base->CONTROLS[chnlParams->chnlNumber * 2].CnV = cnvFirstEdge; + + /* When switching mode, disable channel n + 1 first */ + base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Set the requested PWM mode for channel n + 1, PWM output requires mode select to be set to 2 */ + base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC |= + ((chnlParams->level << TPM_CnSC_ELSA_SHIFT) | (2U << TPM_CnSC_MSA_SHIFT)); + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + /* Set the channel pair values */ + base->CONTROLS[(chnlParams->chnlNumber * 2) + 1].CnV = cnvFirstEdge + cnv; + } + else + { +#endif + if (chnlParams->dutyCyclePercent == 0) + { + /* Signal stays low */ + cnv = 0; + } + else + { + cnv = (mod * chnlParams->dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + } + + /* When switching mode, disable channel first */ + base->CONTROLS[chnlParams->chnlNumber].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlParams->chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Set the requested PWM mode, PWM output requires mode select to be set to 2 */ + base->CONTROLS[chnlParams->chnlNumber].CnSC |= + ((chnlParams->level << TPM_CnSC_ELSA_SHIFT) | (2U << TPM_CnSC_MSA_SHIFT)); + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[chnlParams->chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + base->CONTROLS[chnlParams->chnlNumber].CnV = cnv; +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + } +#endif + + chnlParams++; + } + + return kStatus_Success; +} + +void TPM_UpdatePwmDutycycle(TPM_Type *base, + tpm_chnl_t chnlNumber, + tpm_pwm_mode_t currentPwmMode, + uint8_t dutyCyclePercent) +{ + assert(chnlNumber < FSL_FEATURE_TPM_CHANNEL_COUNTn(base)); + + uint16_t cnv, mod; + + mod = base->MOD; +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + if (currentPwmMode == kTPM_CombinedPwm) + { + uint16_t cnvFirstEdge; + + /* This check is added for combined mode as the channel number should be the pair number */ + if (chnlNumber >= (FSL_FEATURE_TPM_CHANNEL_COUNTn(base) / 2)) + { + return; + } + cnv = (mod * dutyCyclePercent) / 100; + cnvFirstEdge = base->CONTROLS[chnlNumber * 2].CnV; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + base->CONTROLS[(chnlNumber * 2) + 1].CnV = cnvFirstEdge + cnv; + } + else + { +#endif + cnv = (mod * dutyCyclePercent) / 100; + /* For 100% duty cycle */ + if (cnv >= mod) + { + cnv = mod + 1; + } + base->CONTROLS[chnlNumber].CnV = cnv; +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + } +#endif +} + +void TPM_UpdateChnlEdgeLevelSelect(TPM_Type *base, tpm_chnl_t chnlNumber, uint8_t level) +{ + assert(chnlNumber < FSL_FEATURE_TPM_CHANNEL_COUNTn(base)); + + uint32_t reg = base->CONTROLS[chnlNumber].CnSC & ~(TPM_CnSC_CHF_MASK); + + /* When switching mode, disable channel first */ + base->CONTROLS[chnlNumber].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Clear the field and write the new level value */ + reg &= ~(TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + reg |= ((uint32_t)level << TPM_CnSC_ELSA_SHIFT) & (TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + base->CONTROLS[chnlNumber].CnSC = reg; + + /* Wait till mode change is acknowledged */ + reg &= (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + while (reg != (base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } +} + +void TPM_SetupInputCapture(TPM_Type *base, tpm_chnl_t chnlNumber, tpm_input_capture_edge_t captureMode) +{ + assert(chnlNumber < FSL_FEATURE_TPM_CHANNEL_COUNTn(base)); + +#if defined(FSL_FEATURE_TPM_HAS_QDCTRL) && FSL_FEATURE_TPM_HAS_QDCTRL + /* Clear quadrature Decoder mode for channel 0 or 1*/ + if ((chnlNumber == 0) || (chnlNumber == 1)) + { + base->QDCTRL &= ~TPM_QDCTRL_QUADEN_MASK; + } +#endif + +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE + /* Clear the combine bit for chnlNumber */ + base->COMBINE &= ~(1U << TPM_COMBINE_SHIFT * (chnlNumber / 2)); +#endif + + /* When switching mode, disable channel first */ + base->CONTROLS[chnlNumber].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Set the requested input capture mode */ + base->CONTROLS[chnlNumber].CnSC |= captureMode; + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } +} + +void TPM_SetupOutputCompare(TPM_Type *base, + tpm_chnl_t chnlNumber, + tpm_output_compare_mode_t compareMode, + uint32_t compareValue) +{ + assert(chnlNumber < FSL_FEATURE_TPM_CHANNEL_COUNTn(base)); + +#if defined(FSL_FEATURE_TPM_HAS_QDCTRL) && FSL_FEATURE_TPM_HAS_QDCTRL + /* Clear quadrature Decoder mode for channel 0 or 1 */ + if ((chnlNumber == 0) || (chnlNumber == 1)) + { + base->QDCTRL &= ~TPM_QDCTRL_QUADEN_MASK; + } +#endif + + /* When switching mode, disable channel first */ + base->CONTROLS[chnlNumber].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Setup the channel output behaviour when a match occurs with the compare value */ + base->CONTROLS[chnlNumber].CnSC |= compareMode; + + /* Setup the compare value */ + base->CONTROLS[chnlNumber].CnV = compareValue; + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[chnlNumber].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } +} + +#if defined(FSL_FEATURE_TPM_HAS_COMBINE) && FSL_FEATURE_TPM_HAS_COMBINE +void TPM_SetupDualEdgeCapture(TPM_Type *base, + tpm_chnl_t chnlPairNumber, + const tpm_dual_edge_capture_param_t *edgeParam, + uint32_t filterValue) +{ + assert(edgeParam); + assert(chnlPairNumber < FSL_FEATURE_TPM_CHANNEL_COUNTn(base) / 2); + + uint32_t reg; +/* Clear quadrature Decoder mode for channel 0 or 1*/ +#if defined(FSL_FEATURE_TPM_HAS_QDCTRL) && FSL_FEATURE_TPM_HAS_QDCTRL + if (chnlPairNumber == 0) + { + base->QDCTRL &= ~TPM_QDCTRL_QUADEN_MASK; + } +#endif + + /* Unlock: When switching mode, disable channel first */ + base->CONTROLS[chnlPairNumber * 2].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlPairNumber * 2].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + base->CONTROLS[chnlPairNumber * 2 + 1].CnSC &= + ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[chnlPairNumber * 2 + 1].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Now, the registers for input mode can be operated. */ + if (edgeParam->enableSwap) + { + /* Set the combine and swap bits for the channel pair */ + base->COMBINE |= (TPM_COMBINE_COMBINE0_MASK | TPM_COMBINE_COMSWAP0_MASK) + << (TPM_COMBINE_SHIFT * chnlPairNumber); + + /* Input filter setup for channel n+1 input */ + reg = base->FILTER; + reg &= ~(TPM_FILTER_CH0FVAL_MASK << (TPM_FILTER_CH1FVAL_SHIFT * (chnlPairNumber + 1))); + reg |= (filterValue << (TPM_FILTER_CH1FVAL_SHIFT * (chnlPairNumber + 1))); + base->FILTER = reg; + } + else + { + reg = base->COMBINE; + /* Clear the swap bit for the channel pair */ + reg &= ~(TPM_COMBINE_COMSWAP0_MASK << (TPM_COMBINE_COMSWAP0_SHIFT * chnlPairNumber)); + + /* Set the combine bit for the channel pair */ + reg |= TPM_COMBINE_COMBINE0_MASK << (TPM_COMBINE_SHIFT * chnlPairNumber); + base->COMBINE = reg; + + /* Input filter setup for channel n input */ + reg = base->FILTER; + reg &= ~(TPM_FILTER_CH0FVAL_MASK << (TPM_FILTER_CH1FVAL_SHIFT * chnlPairNumber)); + reg |= (filterValue << (TPM_FILTER_CH1FVAL_SHIFT * chnlPairNumber)); + base->FILTER = reg; + } + + /* Setup the edge detection from channel n */ + base->CONTROLS[chnlPairNumber * 2].CnSC |= edgeParam->currChanEdgeMode; + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[chnlPairNumber * 2].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + + /* Setup the edge detection from channel n+1 */ + base->CONTROLS[(chnlPairNumber * 2) + 1].CnSC |= edgeParam->nextChanEdgeMode; + + /* Wait till mode change is acknowledged */ + while (!(base->CONTROLS[(chnlPairNumber * 2) + 1].CnSC & + (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } +} +#endif + +#if defined(FSL_FEATURE_TPM_HAS_QDCTRL) && FSL_FEATURE_TPM_HAS_QDCTRL +void TPM_SetupQuadDecode(TPM_Type *base, + const tpm_phase_params_t *phaseAParams, + const tpm_phase_params_t *phaseBParams, + tpm_quad_decode_mode_t quadMode) +{ + assert(phaseAParams); + assert(phaseBParams); + + base->CONTROLS[0].CnSC &= ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[0].CnSC & (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + uint32_t reg; + + /* Set Phase A filter value */ + reg = base->FILTER; + reg &= ~(TPM_FILTER_CH0FVAL_MASK); + reg |= TPM_FILTER_CH0FVAL(phaseAParams->phaseFilterVal); + base->FILTER = reg; + +#if defined(FSL_FEATURE_TPM_HAS_POL) && FSL_FEATURE_TPM_HAS_POL + /* Set Phase A polarity */ + if (phaseAParams->phasePolarity) + { + base->POL |= TPM_POL_POL0_MASK; + } + else + { + base->POL &= ~TPM_POL_POL0_MASK; + } +#endif + + base->CONTROLS[1].CnSC &= ~(TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK); + + /* Wait till mode change to disable channel is acknowledged */ + while ((base->CONTROLS[1].CnSC & (TPM_CnSC_MSA_MASK | TPM_CnSC_MSB_MASK | TPM_CnSC_ELSA_MASK | TPM_CnSC_ELSB_MASK))) + { + } + /* Set Phase B filter value */ + reg = base->FILTER; + reg &= ~(TPM_FILTER_CH1FVAL_MASK); + reg |= TPM_FILTER_CH1FVAL(phaseBParams->phaseFilterVal); + base->FILTER = reg; +#if defined(FSL_FEATURE_TPM_HAS_POL) && FSL_FEATURE_TPM_HAS_POL + /* Set Phase B polarity */ + if (phaseBParams->phasePolarity) + { + base->POL |= TPM_POL_POL1_MASK; + } + else + { + base->POL &= ~TPM_POL_POL1_MASK; + } +#endif + + /* Set Quadrature mode */ + reg = base->QDCTRL; + reg &= ~(TPM_QDCTRL_QUADMODE_MASK); + reg |= TPM_QDCTRL_QUADMODE(quadMode); + base->QDCTRL = reg; + + /* Enable Quad decode */ + base->QDCTRL |= TPM_QDCTRL_QUADEN_MASK; +} + +#endif + +void TPM_EnableInterrupts(TPM_Type *base, uint32_t mask) +{ + uint32_t chnlInterrupts = (mask & 0xFF); + uint8_t chnlNumber = 0; + + /* Enable the timer overflow interrupt */ + if (mask & kTPM_TimeOverflowInterruptEnable) + { + base->SC |= TPM_SC_TOIE_MASK; + } + + /* Enable the channel interrupts */ + while (chnlInterrupts) + { + if (chnlInterrupts & 0x1) + { + base->CONTROLS[chnlNumber].CnSC |= TPM_CnSC_CHIE_MASK; + } + chnlNumber++; + chnlInterrupts = chnlInterrupts >> 1U; + } +} + +void TPM_DisableInterrupts(TPM_Type *base, uint32_t mask) +{ + uint32_t chnlInterrupts = (mask & 0xFF); + uint8_t chnlNumber = 0; + + /* Disable the timer overflow interrupt */ + if (mask & kTPM_TimeOverflowInterruptEnable) + { + base->SC &= ~TPM_SC_TOIE_MASK; + } + + /* Disable the channel interrupts */ + while (chnlInterrupts) + { + if (chnlInterrupts & 0x1) + { + base->CONTROLS[chnlNumber].CnSC &= ~TPM_CnSC_CHIE_MASK; + } + chnlNumber++; + chnlInterrupts = chnlInterrupts >> 1U; + } +} + +uint32_t TPM_GetEnabledInterrupts(TPM_Type *base) +{ + uint32_t enabledInterrupts = 0; + int8_t chnlCount = FSL_FEATURE_TPM_CHANNEL_COUNTn(base); + + /* The CHANNEL_COUNT macro returns -1 if it cannot match the TPM instance */ + assert(chnlCount != -1); + + /* Check if timer overflow interrupt is enabled */ + if (base->SC & TPM_SC_TOIE_MASK) + { + enabledInterrupts |= kTPM_TimeOverflowInterruptEnable; + } + + /* Check if the channel interrupts are enabled */ + while (chnlCount > 0) + { + chnlCount--; + if (base->CONTROLS[chnlCount].CnSC & TPM_CnSC_CHIE_MASK) + { + enabledInterrupts |= (1U << chnlCount); + } + } + + return enabledInterrupts; +}