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nuttx/arch/arm/src/efm32/efm32_adc.h
Xiang Xiao 68951e8d72 Remove exra whitespace from files (#189) 
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
2020-01-31 09:24:49 -06:00

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/************************************************************************************
* arch/arm/src/efm32/efm32_adc.h
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX 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 OWNER 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.
*
************************************************************************************/
#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 */
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