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