/* * Copyright (c) 2016, Freescale Semiconductor, Inc. * Copyright 2016-2017 NXP * * 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 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. * * 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_adc_etc.h" /******************************************************************************* * Prototypes ******************************************************************************/ #if defined(ADC_ETC_CLOCKS) /*! * @brief Get instance number for ADC_ETC module. * * @param base ADC_ETC peripheral base address */ static uint32_t ADC_ETC_GetInstance(ADC_ETC_Type *base); /******************************************************************************* * Variables ******************************************************************************/ /*! @brief Pointers to ADC_ETC bases for each instance. */ static ADC_ETC_Type *const s_adcetcBases[] = ADC_ETC_BASE_PTRS; /*! @brief Pointers to ADC_ETC clocks for each instance. */ static const clock_ip_name_t s_adcetcClocks[] = ADC_ETC_CLOCKS; /******************************************************************************* * Code ******************************************************************************/ static uint32_t ADC_ETC_GetInstance(ADC_ETC_Type *base) { uint32_t instance = 0U; uint32_t adcetcArrayCount = (sizeof(s_adcetcBases) / sizeof(s_adcetcBases[0])); /* Find the instance index from base address mappings. */ for (instance = 0; instance < adcetcArrayCount; instance++) { if (s_adcetcBases[instance] == base) { break; } } return instance; } #endif /* ADC_ETC_CLOCKS */ void ADC_ETC_Init(ADC_ETC_Type *base, const adc_etc_config_t *config) { assert(NULL != config); uint32_t tmp32; #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) #if defined(ADC_ETC_CLOCKS) /* Open clock gate. */ CLOCK_EnableClock(s_adcetcClocks[ADC_ETC_GetInstance(base)]); #endif /* ADC_ETC_CLOCKS */ #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ /* Disable software reset. */ ADC_ETC_DoSoftwareReset(base, false); /* Set ADC_ETC_CTRL register. */ tmp32 = ADC_ETC_CTRL_EXT0_TRIG_PRIORITY(config->TSC0triggerPriority) | ADC_ETC_CTRL_EXT1_TRIG_PRIORITY(config->TSC1triggerPriority) | ADC_ETC_CTRL_PRE_DIVIDER(config->clockPreDivider) | ADC_ETC_CTRL_TRIG_ENABLE(config->XBARtriggerMask); if (config->enableTSCBypass) { tmp32 |= ADC_ETC_CTRL_TSC_BYPASS_MASK; } if (config->enableTSC0Trigger) { tmp32 |= ADC_ETC_CTRL_EXT0_TRIG_ENABLE_MASK; } if (config->enableTSC1Trigger) { tmp32 |= ADC_ETC_CTRL_EXT1_TRIG_ENABLE_MASK; } base->CTRL = tmp32; } void ADC_ETC_Deinit(ADC_ETC_Type *base) { /* Do software reset to clear all logical. */ ADC_ETC_DoSoftwareReset(base, true); #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) #if defined(ADC_ETC_CLOCKS) /* Close clock gate. */ CLOCK_DisableClock(s_adcetcClocks[ADC_ETC_GetInstance(base)]); #endif /* ADC_ETC_CLOCKS */ #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ } void ADC_ETC_GetDefaultConfig(adc_etc_config_t *config) { config->enableTSCBypass = true; config->enableTSC0Trigger = false; config->enableTSC1Trigger = false; config->TSC0triggerPriority = 0U; config->TSC1triggerPriority = 0U; config->clockPreDivider = 0U; config->XBARtriggerMask = 0U; } void ADC_ETC_SetTriggerConfig(ADC_ETC_Type *base, uint32_t triggerGroup, const adc_etc_trigger_config_t *config) { assert(triggerGroup < ADC_ETC_TRIGn_CTRL_COUNT); assert(ADC_ETC_TRIGn_COUNTER_COUNT > triggerGroup); uint32_t tmp32; /* Set ADC_ETC_TRGn_CTRL register. */ tmp32 = ADC_ETC_TRIGn_CTRL_TRIG_CHAIN(config->triggerChainLength) | ADC_ETC_TRIGn_CTRL_TRIG_PRIORITY(config->triggerPriority); if (config->enableSyncMode) { tmp32 |= ADC_ETC_TRIGn_CTRL_SYNC_MODE_MASK; } if (config->enableSWTriggerMode) { tmp32 |= ADC_ETC_TRIGn_CTRL_TRIG_MODE_MASK; } base->TRIG[triggerGroup].TRIGn_CTRL = tmp32; /* Set ADC_ETC_TRGn_COUNTER register. */ tmp32 = ADC_ETC_TRIGn_COUNTER_INIT_DELAY(config->initialDelay) | ADC_ETC_TRIGn_COUNTER_SAMPLE_INTERVAL(config->sampleIntervalDelay); base->TRIG[triggerGroup].TRIGn_COUNTER = tmp32; } void ADC_ETC_SetTriggerChainConfig(ADC_ETC_Type *base, uint32_t triggerGroup, uint32_t chainGroup, const adc_etc_trigger_chain_config_t *config) { assert(triggerGroup < ADC_ETC_TRIGn_CTRL_COUNT); uint32_t tmp; uint32_t tmp32; uint8_t mRemainder = chainGroup % 2U; /* Set ADC_ETC_TRIGn_CHAINm register. */ tmp = ADC_ETC_TRIGn_CHAIN_1_0_HWTS0(config->ADCHCRegisterSelect) | ADC_ETC_TRIGn_CHAIN_1_0_CSEL0(config->ADCChannelSelect) | ADC_ETC_TRIGn_CHAIN_1_0_IE0(config->InterruptEnable); if (config->enableB2BMode) { tmp |= ADC_ETC_TRIGn_CHAIN_1_0_B2B0_MASK; } switch (chainGroup / 2U) { case 0U: /* Configurate trigger chain0 and chain 1. */ tmp32 = base->TRIG[triggerGroup].TRIGn_CHAIN_1_0; if (mRemainder == 0U) /* Chain 0. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_1_0_CSEL0_MASK | ADC_ETC_TRIGn_CHAIN_1_0_HWTS0_MASK | ADC_ETC_TRIGn_CHAIN_1_0_B2B0_MASK | ADC_ETC_TRIGn_CHAIN_1_0_IE0_MASK); tmp32 |= tmp; } else /* Chain 1. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_1_0_CSEL1_MASK | ADC_ETC_TRIGn_CHAIN_1_0_HWTS1_MASK | ADC_ETC_TRIGn_CHAIN_1_0_B2B1_MASK | ADC_ETC_TRIGn_CHAIN_1_0_IE1_MASK); tmp32 |= (tmp << ADC_ETC_TRIGn_CHAIN_1_0_CSEL1_SHIFT); } base->TRIG[triggerGroup].TRIGn_CHAIN_1_0 = tmp32; break; case 1U: /* Configurate trigger chain2 and chain 3. */ tmp32 = base->TRIG[triggerGroup].TRIGn_CHAIN_3_2; if (mRemainder == 0U) /* Chain 2. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_3_2_CSEL2_MASK | ADC_ETC_TRIGn_CHAIN_3_2_HWTS2_MASK | ADC_ETC_TRIGn_CHAIN_3_2_B2B2_MASK | ADC_ETC_TRIGn_CHAIN_3_2_IE2_MASK); tmp32 |= tmp; } else /* Chain 3. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_3_2_CSEL3_MASK | ADC_ETC_TRIGn_CHAIN_3_2_HWTS3_MASK | ADC_ETC_TRIGn_CHAIN_3_2_B2B3_MASK | ADC_ETC_TRIGn_CHAIN_3_2_IE3_MASK); tmp32 |= (tmp << ADC_ETC_TRIGn_CHAIN_3_2_CSEL3_SHIFT); } base->TRIG[triggerGroup].TRIGn_CHAIN_3_2 = tmp32; break; case 2U: /* Configurate trigger chain4 and chain 5. */ tmp32 = base->TRIG[triggerGroup].TRIGn_CHAIN_5_4; if (mRemainder == 0U) /* Chain 4. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_5_4_CSEL4_MASK | ADC_ETC_TRIGn_CHAIN_5_4_HWTS4_MASK | ADC_ETC_TRIGn_CHAIN_5_4_B2B4_MASK | ADC_ETC_TRIGn_CHAIN_5_4_IE4_MASK); tmp32 |= tmp; } else /* Chain 5. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_5_4_CSEL5_MASK | ADC_ETC_TRIGn_CHAIN_5_4_HWTS5_MASK | ADC_ETC_TRIGn_CHAIN_5_4_B2B5_MASK | ADC_ETC_TRIGn_CHAIN_5_4_IE5_MASK); tmp32 |= (tmp << ADC_ETC_TRIGn_CHAIN_5_4_CSEL5_SHIFT); } base->TRIG[triggerGroup].TRIGn_CHAIN_5_4 = tmp32; break; case 3U: /* Configurate trigger chain6 and chain 7. */ tmp32 = base->TRIG[triggerGroup].TRIGn_CHAIN_7_6; if (mRemainder == 0U) /* Chain 6. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_7_6_CSEL6_MASK | ADC_ETC_TRIGn_CHAIN_7_6_HWTS6_MASK | ADC_ETC_TRIGn_CHAIN_7_6_B2B6_MASK | ADC_ETC_TRIGn_CHAIN_7_6_IE6_MASK); tmp32 |= tmp; } else /* Chain 7. */ { tmp32 &= ~(ADC_ETC_TRIGn_CHAIN_7_6_CSEL7_MASK | ADC_ETC_TRIGn_CHAIN_7_6_HWTS7_MASK | ADC_ETC_TRIGn_CHAIN_7_6_B2B7_MASK | ADC_ETC_TRIGn_CHAIN_7_6_IE7_MASK); tmp32 |= (tmp << ADC_ETC_TRIGn_CHAIN_7_6_CSEL7_SHIFT); } base->TRIG[triggerGroup].TRIGn_CHAIN_7_6 = tmp32; break; default: break; } } uint32_t ADC_ETC_GetInterruptStatusFlags(ADC_ETC_Type *base, adc_etc_external_trigger_source_t sourceIndex) { uint32_t tmp32 = 0U; if (((base->DONE0_1_IRQ) & (ADC_ETC_DONE0_1_IRQ_TRIG0_DONE0_MASK << sourceIndex)) != 0U) { tmp32 |= kADC_ETC_Done0StatusFlagMask; /* Customized DONE0 status flags mask, which is defined in fsl_adc_etc.h file. */ } if (((base->DONE0_1_IRQ) & (ADC_ETC_DONE0_1_IRQ_TRIG0_DONE1_MASK << sourceIndex)) != 0U) { tmp32 |= kADC_ETC_Done1StatusFlagMask; /* Customized DONE1 status flags mask, which is defined in fsl_adc_etc.h file. */ } if (((base->DONE2_ERR_IRQ) & (ADC_ETC_DONE2_ERR_IRQ_TRIG0_DONE2_MASK << sourceIndex)) != 0U) { tmp32 |= kADC_ETC_Done2StatusFlagMask; /* Customized DONE2 status flags mask, which is defined in fsl_adc_etc.h file. */ } if (((base->DONE2_ERR_IRQ) & (ADC_ETC_DONE2_ERR_IRQ_TRIG0_ERR_MASK << sourceIndex)) != 0U) { tmp32 |= kADC_ETC_ErrorStatusFlagMask; /* Customized ERROR status flags mask, which is defined in fsl_adc_etc.h file. */ } return tmp32; } void ADC_ETC_ClearInterruptStatusFlags(ADC_ETC_Type *base, adc_etc_external_trigger_source_t sourceIndex, uint32_t mask) { if (0U != (mask & kADC_ETC_Done0StatusFlagMask)) /* Write 1 to clear DONE0 status flags. */ { base->DONE0_1_IRQ = (ADC_ETC_DONE0_1_IRQ_TRIG0_DONE0_MASK << sourceIndex); } if (0U != (mask & kADC_ETC_Done1StatusFlagMask)) /* Write 1 to clear DONE1 status flags. */ { base->DONE0_1_IRQ = (ADC_ETC_DONE0_1_IRQ_TRIG0_DONE1_MASK << sourceIndex); } if (0U != (mask & kADC_ETC_Done2StatusFlagMask)) /* Write 1 to clear DONE2 status flags. */ { base->DONE2_ERR_IRQ = (ADC_ETC_DONE2_ERR_IRQ_TRIG0_DONE2_MASK << sourceIndex); } if (0U != (mask & kADC_ETC_ErrorStatusFlagMask)) /* Write 1 to clear ERROR status flags. */ { base->DONE2_ERR_IRQ = (ADC_ETC_DONE2_ERR_IRQ_TRIG0_ERR_MASK << sourceIndex); } } uint32_t ADC_ETC_GetADCConversionValue(ADC_ETC_Type *base, uint32_t triggerGroup, uint32_t chainGroup) { assert(triggerGroup < ADC_ETC_TRIGn_RESULT_1_0_COUNT); uint32_t mADCResult; uint8_t mRemainder = chainGroup % 2U; switch (chainGroup / 2U) { case 0U: if (0U == mRemainder) { mADCResult = ADC_ETC_TRIGn_RESULT_1_0_DATA0_MASK & (base->TRIG[triggerGroup].TRIGn_RESULT_1_0); } else { mADCResult = (base->TRIG[triggerGroup].TRIGn_RESULT_1_0) >> ADC_ETC_TRIGn_RESULT_1_0_DATA1_SHIFT; } break; case 1U: if (0U == mRemainder) { mADCResult = ADC_ETC_TRIGn_RESULT_3_2_DATA2_MASK & (base->TRIG[triggerGroup].TRIGn_RESULT_3_2); } else { mADCResult = (base->TRIG[triggerGroup].TRIGn_RESULT_3_2) >> ADC_ETC_TRIGn_RESULT_3_2_DATA3_SHIFT; } break; case 2U: if (0U == mRemainder) { mADCResult = ADC_ETC_TRIGn_RESULT_5_4_DATA4_MASK & (base->TRIG[triggerGroup].TRIGn_RESULT_5_4); } else { mADCResult = (base->TRIG[triggerGroup].TRIGn_RESULT_5_4) >> ADC_ETC_TRIGn_RESULT_5_4_DATA5_SHIFT; } break; case 3U: if (0U == mRemainder) { mADCResult = ADC_ETC_TRIGn_RESULT_7_6_DATA6_MASK & (base->TRIG[triggerGroup].TRIGn_RESULT_7_6); } else { mADCResult = (base->TRIG[triggerGroup].TRIGn_RESULT_7_6) >> ADC_ETC_TRIGn_RESULT_7_6_DATA7_SHIFT; } break; default: return 0U; } return mADCResult; }