Add AVR XMega system tick low level driver files.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10375 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Theodore Ateba
parent
fa98e575d8
commit
7b1736c349
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_st_lld.c
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ifeq ($(USE_SMART_BUILD),yes)
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ifneq ($(findstring HAL_USE_GPT TRUE,$(HALCONF)),)
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_gpt_lld.c
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endif
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ifneq ($(findstring HAL_USE_ICU TRUE,$(HALCONF)),)
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_icu_lld.c
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endif
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ifneq ($(findstring HAL_USE_PWM TRUE,$(HALCONF)),)
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_pwm_lld.c
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endif
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else
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_gpt_lld.c
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_icu_lld.c
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PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1/hal_pwm_lld.c
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endif
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PLATFORMINC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/TIMv1
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/*
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ChibiOS - Copyright (C) 2017 Theodore Ateba
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file TIMv1/hal_st_lld.c
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* @brief AVR XMEGA ST subsystem low level driver source file.
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*
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* @addtogroup ST
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* @{
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*/
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#include "hal.h"
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#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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#if (OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC) || defined(__DOXYGEN__)
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/**
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* @brief Timer handler for periodic mode.
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*/
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OSAL_IRQ_HANDLER(TCC0_OVF_vect) {
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OSAL_IRQ_PROLOGUE();
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osalSysLockFromISR();
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osalOsTimerHandlerI();
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osalSysUnlockFromISR();
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OSAL_IRQ_EPILOGUE();
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}
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#endif /* OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC */
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#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) || defined(__DOXYGEN__)
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/* TODO: Add the Handler of the freerunning mode. */
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#endif /* OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING */
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level ST driver initialization.
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*
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* @notapi
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*/
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void st_lld_init(void) {
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#if (OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC) || defined(__DOXYGEN__)
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TCC0.PER = (F_CPU/OSAL_ST_FREQUENCY) - 1;
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TCC0.CTRLA = ( TCC0.CTRLA & ~TC0_CLKSEL_gm ) | TC_CLKSEL_DIV1_gc;
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TCC0.INTCTRLA = ( TCC0.INTCTRLA & ~TC0_OVFINTLVL_gm ) | TC_OVFINTLVL_MED_gc;
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PMIC.CTRL |= PMIC_MEDLVLEN_bm;
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sei();
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#endif /* OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC */
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#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) || defined(__DOXYGEN__)
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/* TODO: Add freerunning mode for. */
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#endif /* OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING */
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}
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#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
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/** @} */
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@ -0,0 +1,157 @@
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/*
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ChibiOS - Copyright (C) 2017 Theodore Ateba
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file TIMv1/hal_st_lld.h
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* @brief AVR XMEGA ST Driver subsystem low level driver header file.
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* @details This header is designed to be include-able without having to
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* include other files from the HAL.
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*
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* @addtogroup AVR
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* @{
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*/
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#ifndef HAL_ST_LLD_H
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#define HAL_ST_LLD_H
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#include <avr/io.h>
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*
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* TODO: for models that have many timers,
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* could add AVR_XMEGA_ST_USE_TIMER
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*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*
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* TODO: error checks for valid timer selected
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*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void st_lld_init(void);
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#ifdef __cplusplus
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}
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#endif
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#define TIFR_REG TCC0.INTFLAGS
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/*===========================================================================*/
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/* Driver inline functions. */
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/*===========================================================================*/
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/**
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* @brief Returns the time counter value.
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*
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* @return The counter value.
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*
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* @notapi
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*/
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static inline systime_t st_lld_get_counter(void) {
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return (systime_t) TCC0.CNT;
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}
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/**
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* @brief Starts the alarm.
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* @note Makes sure that no spurious alarms are triggered after
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* this call.
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*
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* @param[in] time the time to be set for the first alarm
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*
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* @notapi
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*/
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static inline void st_lld_start_alarm(systime_t time) {
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TCC0.INTCTRLA = ( TCC0.INTCTRLA & ~TC0_OVFINTLVL_gm ) | TC_OVFINTLVL_MED_gc;
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PMIC.CTRL |= PMIC_MEDLVLEN_bm;
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}
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/**
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* @brief Stops the alarm interrupt.
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*
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* @notapi
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*/
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static inline void st_lld_stop_alarm(void) {
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/* TODO: Implement this function. */
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}
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/**
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* @brief Sets the alarm time.
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*
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* @param[in] time the time to be set for the next alarm
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*
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* @notapi
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*/
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static inline void st_lld_set_alarm(systime_t time) {
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TCC0.PER = (uint16_t) time;;
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}
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/**
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* @brief Returns the current alarm time.
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*
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* @return The currently set alarm time.
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*
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* @notapi
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*/
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static inline systime_t st_lld_get_alarm(void) {
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return (systime_t)TCC0.PER;
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}
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/**
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* @brief Determines if the alarm is active.
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*
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* @return The alarm status.
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* @retval false if the alarm is not active.
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* @retval true is the alarm is active
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*
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* @notapi
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*/
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static inline bool st_lld_is_alarm_active(void) {
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/* TODO: Implement this function. */
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return (bool) 0;
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}
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#endif /* HAL_ST_LLD_H */
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/** @} */
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