584 lines
20 KiB
C
584 lines
20 KiB
C
/****************************************************************************
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* arch/arm/src/efm32/efm32_adc.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_EFM32_EFM32_ADC_H
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#define __ARCH_ARM_SRC_EFM32_EFM32_ADC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "hardware/efm32_adc.h"
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#include <nuttx/analog/adc.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Timer devices may be used for different purposes. One special purpose is
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* to control periodic ADC sampling. If CONFIG_EFM32_TIMn is defined then
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* CONFIG_EFM32_TIMn_ADC must also be defined to indicate that timer "n" is
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* intended to be used for that purpose.
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*/
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/* For the EFM32 F1 line, timers 1-4 may be used.
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* For EFM32 F4 line, timers 1-5 and 8 may be used.
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*/
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#ifndef CONFIG_EFM32_TIM1
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# undef CONFIG_EFM32_TIM1_ADC
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# undef CONFIG_EFM32_TIM1_ADC1
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# undef CONFIG_EFM32_TIM1_ADC2
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# undef CONFIG_EFM32_TIM1_ADC3
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#endif
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#ifndef CONFIG_EFM32_TIM2
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# undef CONFIG_EFM32_TIM2_ADC
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# undef CONFIG_EFM32_TIM2_ADC1
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# undef CONFIG_EFM32_TIM2_ADC2
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# undef CONFIG_EFM32_TIM2_ADC3
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#endif
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#ifndef CONFIG_EFM32_TIM3
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# undef CONFIG_EFM32_TIM3_ADC
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# undef CONFIG_EFM32_TIM3_ADC1
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# undef CONFIG_EFM32_TIM3_ADC2
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# undef CONFIG_EFM32_TIM3_ADC3
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#endif
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#ifndef CONFIG_EFM32_TIM4
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# undef CONFIG_EFM32_TIM4_ADC
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# undef CONFIG_EFM32_TIM4_ADC1
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# undef CONFIG_EFM32_TIM4_ADC2
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# undef CONFIG_EFM32_TIM4_ADC3
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#endif
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#ifndef CONFIG_EFM32_TIM5
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# undef CONFIG_EFM32_TIM5_ADC
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# undef CONFIG_EFM32_TIM5_ADC1
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# undef CONFIG_EFM32_TIM5_ADC2
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# undef CONFIG_EFM32_TIM5_ADC3
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#endif
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#ifndef CONFIG_EFM32_TIM8
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# undef CONFIG_EFM32_TIM8_ADC
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# undef CONFIG_EFM32_TIM8_ADC1
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# undef CONFIG_EFM32_TIM8_ADC2
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# undef CONFIG_EFM32_TIM8_ADC3
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#endif
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/* Timers 6, 7,
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* and 10-14 are not used with the ADC by any supported family
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*/
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#undef CONFIG_EFM32_TIM6_ADC
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#undef CONFIG_EFM32_TIM6_ADC1
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#undef CONFIG_EFM32_TIM6_ADC2
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#undef CONFIG_EFM32_TIM6_ADC3
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#undef CONFIG_EFM32_TIM7_ADC
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#undef CONFIG_EFM32_TIM7_ADC1
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#undef CONFIG_EFM32_TIM7_ADC2
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#undef CONFIG_EFM32_TIM7_ADC3
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#undef CONFIG_EFM32_TIM9_ADC
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#undef CONFIG_EFM32_TIM9_ADC1
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#undef CONFIG_EFM32_TIM9_ADC2
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#undef CONFIG_EFM32_TIM9_ADC3
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#undef CONFIG_EFM32_TIM10_ADC
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#undef CONFIG_EFM32_TIM10_ADC1
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#undef CONFIG_EFM32_TIM10_ADC2
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#undef CONFIG_EFM32_TIM10_ADC3
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#undef CONFIG_EFM32_TIM11_ADC
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#undef CONFIG_EFM32_TIM11_ADC1
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#undef CONFIG_EFM32_TIM11_ADC2
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#undef CONFIG_EFM32_TIM11_ADC3
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#undef CONFIG_EFM32_TIM12_ADC
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#undef CONFIG_EFM32_TIM12_ADC1
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#undef CONFIG_EFM32_TIM12_ADC2
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#undef CONFIG_EFM32_TIM12_ADC3
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#undef CONFIG_EFM32_TIM13_ADC
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#undef CONFIG_EFM32_TIM13_ADC1
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#undef CONFIG_EFM32_TIM13_ADC2
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#undef CONFIG_EFM32_TIM13_ADC3
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#undef CONFIG_EFM32_TIM14_ADC
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#undef CONFIG_EFM32_TIM14_ADC1
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#undef CONFIG_EFM32_TIM14_ADC2
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#undef CONFIG_EFM32_TIM14_ADC3
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/* Up to 3 ADC interfaces are supported */
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#if EFM32_NADC < 3
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# undef CONFIG_EFM32_ADC3
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#endif
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#if EFM32_NADC < 2
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# undef CONFIG_EFM32_ADC2
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#endif
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#if EFM32_NADC < 1
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# undef CONFIG_EFM32_ADC1
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#endif
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#if defined(CONFIG_EFM32_ADC1) || defined(CONFIG_EFM32_ADC2) || defined(CONFIG_EFM32_ADC3)
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/* DMA support is not yet implemented for this driver */
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#ifdef CONFIG_ADC_DMA
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# warning "DMA is not supported by the current driver"
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#endif
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/* Timer configuration:
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* If a timer trigger is specified, then get information about the timer.
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*/
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#if defined(CONFIG_EFM32_TIM1_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM1_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM1_CLKIN
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#elif defined(CONFIG_EFM32_TIM2_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM2_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM2_CLKIN
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#elif defined(CONFIG_EFM32_TIM3_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM3_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM3_CLKIN
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#elif defined(CONFIG_EFM32_TIM4_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM4_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM4_CLKIN
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#elif defined(CONFIG_EFM32_TIM5_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM5_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM5_CLKIN
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#elif defined(CONFIG_EFM32_TIM8_ADC1)
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# define ADC1_HAVE_TIMER 1
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# define ADC1_TIMER_BASE EFM32_TIM8_BASE
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# define ADC1_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM8_CLKIN
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#else
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# undef ADC1_HAVE_TIMER
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#endif
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#ifdef ADC1_HAVE_TIMER
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# ifndef CONFIG_EFM32_ADC1_SAMPLE_FREQUENCY
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# error "CONFIG_EFM32_ADC1_SAMPLE_FREQUENCY not defined"
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# endif
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# ifndef CONFIG_EFM32_ADC1_TIMTRIG
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# error "CONFIG_EFM32_ADC1_TIMTRIG not defined"
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# warning "Values 0:CC1 1:CC2 2:CC3 3:CC4 4:TRGO"
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# endif
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#endif
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#if defined(CONFIG_EFM32_TIM1_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM1_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM1_CLKIN
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#elif defined(CONFIG_EFM32_TIM2_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM2_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM2_CLKIN
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#elif defined(CONFIG_EFM32_TIM3_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM3_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM3_CLKIN
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#elif defined(CONFIG_EFM32_TIM4_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM4_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM4_CLKIN
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#elif defined(CONFIG_EFM32_TIM5_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM5_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM5_CLKIN
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#elif defined(CONFIG_EFM32_TIM8_ADC2)
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# define ADC2_HAVE_TIMER 1
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# define ADC2_TIMER_BASE EFM32_TIM8_BASE
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# define ADC2_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM8_CLKIN
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#else
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# undef ADC2_HAVE_TIMER
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#endif
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#ifdef ADC2_HAVE_TIMER
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# ifndef CONFIG_EFM32_ADC2_SAMPLE_FREQUENCY
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# error "CONFIG_EFM32_ADC2_SAMPLE_FREQUENCY not defined"
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# endif
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# ifndef CONFIG_EFM32_ADC2_TIMTRIG
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# error "CONFIG_EFM32_ADC2_TIMTRIG not defined"
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# warning "Values 0:CC1 1:CC2 2:CC3 3:CC4 4:TRGO"
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# endif
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#endif
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#if defined(CONFIG_EFM32_TIM1_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM1_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM1_CLKIN
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#elif defined(CONFIG_EFM32_TIM2_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM2_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM2_CLKIN
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#elif defined(CONFIG_EFM32_TIM3_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM3_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM3_CLKIN
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#elif defined(CONFIG_EFM32_TIM4_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM4_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM4_CLKIN
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#elif defined(CONFIG_EFM32_TIM5_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM5_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB1_TIM5_CLKIN
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#elif defined(CONFIG_EFM32_TIM8_ADC3)
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# define ADC3_HAVE_TIMER 1
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# define ADC3_TIMER_BASE EFM32_TIM8_BASE
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# define ADC3_TIMER_PCLK_FREQUENCY EFM32_APB2_TIM8_CLKIN
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#else
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# undef ADC3_HAVE_TIMER
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#endif
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#ifdef ADC3_HAVE_TIMER
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# ifndef CONFIG_EFM32_ADC3_SAMPLE_FREQUENCY
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# error "CONFIG_EFM32_ADC3_SAMPLE_FREQUENCY not defined"
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# endif
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# ifndef CONFIG_EFM32_ADC3_TIMTRIG
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# error "CONFIG_EFM32_ADC3_TIMTRIG not defined"
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# warning "Values 0:CC1 1:CC2 2:CC3 3:CC4 4:TRGO"
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# endif
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#endif
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#if defined(ADC1_HAVE_TIMER) || defined(ADC2_HAVE_TIMER) || defined(ADC3_HAVE_TIMER)
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# define ADC_HAVE_TIMER 1
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# if defined(CONFIG_EFM32_EFM32F10XX) && !defined(CONFIG_EFM32_FORCEPOWER)
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# warning "CONFIG_EFM32_FORCEPOWER must be defined to enable the timer(s)"
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# endif
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#else
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# undef ADC_HAVE_TIMER
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#endif
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/* NOTE:
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* The following assumes that all possible combinations of timers and values
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* are support EXTSEL. That is not so and it varies from one EFM32 to
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* another. But this (wrong) assumptions keeps the logic as simple as
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* possible. If un unsupported combination is used, an error will show
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* up later during compilation although it may be difficult to track it back
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* to this simplification.
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*/
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#if defined(CONFIG_EFM32_TIM1_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T1TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM2_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T2TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM3_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T3TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM4_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T4TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM5_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T5TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM8_ADC1)
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# if CONFIG_EFM32_ADC1_TIMTRIG == 0
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC1
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 1
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC2
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 2
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC3
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 3
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC4
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# elif CONFIG_EFM32_ADC1_TIMTRIG == 4
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# define ADC1_EXTSEL_VALUE ADC_CR2_EXTSEL_T8TRGO
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# else
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# error "CONFIG_EFM32_ADC1_TIMTRIG is out of range"
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# endif
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#endif
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#if defined(CONFIG_EFM32_TIM1_ADC2)
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# if CONFIG_EFM32_ADC2_TIMTRIG == 0
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC1
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC2
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC3
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC4
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T1TRGO
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# else
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# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
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# endif
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#elif defined(CONFIG_EFM32_TIM2_ADC2)
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# if CONFIG_EFM32_ADC2_TIMTRIG == 0
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC1
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC2
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC3
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC4
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# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
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# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T2TRGO
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# else
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# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM3_ADC2)
|
|
# if CONFIG_EFM32_ADC2_TIMTRIG == 0
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC1
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC2
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC3
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC4
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T3TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM4_ADC2)
|
|
# if CONFIG_EFM32_ADC2_TIMTRIG == 0
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC1
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC2
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC3
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC4
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T4TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM5_ADC2)
|
|
# if CONFIG_EFM32_ADC2_TIMTRIG == 0
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC1
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC2
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC3
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC4
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T5TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM8_ADC2)
|
|
# if CONFIG_EFM32_ADC2_TIMTRIG == 0
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC1
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 1
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC2
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 2
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC3
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 3
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC4
|
|
# elif CONFIG_EFM32_ADC2_TIMTRIG == 4
|
|
# define ADC2_EXTSEL_VALUE ADC_CR2_EXTSEL_T8TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC2_TIMTRIG is out of range"
|
|
# endif
|
|
#endif
|
|
|
|
#if defined(CONFIG_EFM32_TIM1_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T1CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T1TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM2_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T2CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T2TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM3_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T3CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T3TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM4_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T4CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T4TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM5_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T5CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T5TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#elif defined(CONFIG_EFM32_TIM8_ADC3)
|
|
# if CONFIG_EFM32_ADC3_TIMTRIG == 0
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC1
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 1
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC2
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 2
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC3
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 3
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T8CC4
|
|
# elif CONFIG_EFM32_ADC3_TIMTRIG == 4
|
|
# define ADC3_EXTSEL_VALUE ADC_CR2_EXTSEL_T8TRGO
|
|
# else
|
|
# error "CONFIG_EFM32_ADC3_TIMTRIG is out of range"
|
|
# endif
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: efm32_adcinitialize
|
|
*
|
|
* Description:
|
|
* Initialize the ADC.
|
|
*
|
|
* Input Parameters:
|
|
* intf - Could be {1,2,3} for ADC1, ADC2, or ADC3
|
|
* chanlist - The list of channels
|
|
* nchannels - Number of channels
|
|
*
|
|
* Returned Value:
|
|
* Valid ADC device structure reference on success; a NULL on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
struct adc_dev_s;
|
|
struct adc_dev_s *efm32_adcinitialize(int intf, const uint8_t *chanlist,
|
|
int nchannels);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* CONFIG_EFM32_ADC || CONFIG_EFM32_ADC2 || CONFIG_EFM32_ADC3 */
|
|
#endif /* __ARCH_ARM_SRC_EFM32_EFM32_ADC_H */
|