xushaoxiang
220 lines
7.3 KiB
C
220 lines
7.3 KiB
C
/*!
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* \file xc_drv_aotimer.c
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*
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* \brief Target xinchip aotimer driver implementation
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*
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* \copyright Revised BSD License, see section \ref LICENSE.
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*
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* \code
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*
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* _ __ _ ________ _
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* | |/ /(_)___ / ____/ /_ (_)___
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* | // / __ \/ / / __ \/ / __ \
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* / |/ / / / / /___/ / / / / /_/ /
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* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
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* /_/
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* (C) 2022-2025 XinChip
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*
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* \endcode
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*
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* \author ( XinChip ) Alex-J
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*
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* \author ( XinChip )
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*/
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/*-----------------------------------------------------------------------------------
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INCLUDE HEADE FILES
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------------------------------------------------------------------------------------*/
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#include "xc_drv_aotimer.h"
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/*------------------------------------------------------------------------------------
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Local Variables
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-------------------------------------------------------------------------------------*/
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static bool aotimer_rst_flag = false;
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/*------------------------------------------------------------------------------------
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Func Prototype
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-------------------------------------------------------------------------------------*/
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aotimer_handler_callback aotimer_n_callback[2] = {aotimer0_callback,
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aotimer1_callback};
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/*------------------------------------------------------------------------------------
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Functions
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-------------------------------------------------------------------------------------*/
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/**
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**************************************************************************************
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* @brief xc_aotimer_init
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* @details Example Initialize the aotimer according to its number
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* @param[in] reg_idx : aotimer number idx; AOTIMER0_IDX or AOTIMER1_IDX
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* @param[in] *init_cfg : This is the structure parameter that the AOTimer initializes
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void xc_aotimer_init(uint8_t reg_idx, AOTimer_InitCfg_t *init_cfg)
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{
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if (aotimer_rst_flag == false) {
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cprao_aon_clken_grctl__timer_ao_pclk_en__setf(ENABLE);
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aotimer_rst_flag = true;
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}
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//The clocks for ao timer0 and ao timer1 need to be turned on at the same time.
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if (AOTIMER0_IDX == reg_idx) {
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cprao_aon_clken_grctl__timer0_ao_pclk_en__setf(ENABLE);
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cprao_aon_clken_grctl__timer1_ao_pclk_en__setf(ENABLE);
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} else if (AOTIMER1_IDX == reg_idx) {
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cprao_aon_clken_grctl__timer0_ao_pclk_en__setf(ENABLE);
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cprao_aon_clken_grctl__timer1_ao_pclk_en__setf(ENABLE);
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}
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cpr_lp_ctl__timer_sysclk_sel__setf(ENABLE);
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aotimer_tcr__tes__setf(reg_idx, DISABLE);
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aotimer_tcr__tms__setf(reg_idx, (uint8_t)init_cfg->aotimer_mode);
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(void)aotimer_tic__tic__getf(reg_idx);
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}
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/**
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**************************************************************************************
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* @brief xc_aotimer_us_to_ticks
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* @details Returns the number of ticks according to the time to be set by the aotimer
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* @param[in] us : Time set by the timer (Microsecond is the smallest unit)
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* @param[out] void
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* @retval ticks ( Tick count )
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***************************************************************************************
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*/
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static uint32_t xc_aotimer_us_to_ticks(uint32_t us)
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{
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uint32_t ticks = AOTIMER_TICK_CAL(us);
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if (ticks < AOTIMER_MIN_TLC_VAL)
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ticks = AOTIMER_MIN_TLC_VAL;
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return ticks;
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}
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/**
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**************************************************************************************
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* @brief xc_aotimer_set_value
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* @details Set the timing time according to the aotimer number
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* @param[in] reg_idx : aotimer number idx; AOTIMER0_IDX or AOTIMER1_IDX
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* @param[in] us : Time set by the timer (Microsecond is the smallest unit)
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void xc_aotimer_set_value(uint8_t reg_idx, uint32_t us)
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{
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uint32_t ticks = xc_aotimer_us_to_ticks(us);
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aotimer_tcr__tes__setf(reg_idx, AOTIMER_TCR_TES_DISABLE);
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aotimer_tlc_set(reg_idx, ticks);
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}
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/**
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**************************************************************************************
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* @brief xc_aotimer_start
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* @details Start the timer according to the aotimer number
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* @param[in] reg_idx : aotimer number idx; AOTIMER0_IDX or AOTIMER1_IDX
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void xc_aotimer_start(uint8_t reg_idx)
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{
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NVIC_EnableIRQ( (IRQn_Type)(TIMER_AO0_IRQn+reg_idx) );
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aotimer_tcr__tim__setf(reg_idx, 0);
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aotimer_tcr__tes__setf(reg_idx, ENABLE);
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// Wait for timer enable
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while(aotimer_tcr__tes__getf(reg_idx) != ENABLE)
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{
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__nop();
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}
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}
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/**
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**************************************************************************************
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* @brief xc_aotimer_stop
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* @details Stop the timer according to the aotimer number
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* @param[in] reg_idx : aotimer number idx; AOTIMER0_IDX or AOTIMER1_IDX
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void xc_aotimer_stop(uint8_t reg_idx)
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{
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aotimer_tcr__tes__setf(reg_idx, DISABLE);
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}
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/**
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**************************************************************************************
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* @brief AOTIMER0_Handler
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* @details AOTIMER0 Interrupt function
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* @param[in] void
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void AOTIMER0_Handler(void)
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{
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cprao_aon_reg1__timer_ao_sleep_clksw__setf(0);
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(void)aotimer_tic__tic__getf(AOTIMER0_IDX);
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if (aotimer_n_callback[0] != NULL)
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aotimer_n_callback[0](NULL);
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}
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/**
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**************************************************************************************
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* @brief AOTIMER1_Handler
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* @details AOTIMER1 Interrupt function
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* @param[in] void
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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void AOTIMER1_Handler(void)
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{
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cprao_aon_reg1__timer_ao_sleep_clksw__setf(0);
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(void)aotimer_tic__tic__getf(AOTIMER1_IDX);
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if (aotimer_n_callback[1] != NULL)
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aotimer_n_callback[1](NULL);
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}
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/**
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**************************************************************************************
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* @brief aotimer0_callback
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* @details AOTIMER0 Interrupt the callback function
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* @param[in] void
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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__WEAK void aotimer0_callback(void *context)
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{ /* AOTimer0 中断回调处理事件 */
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}
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/**
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**************************************************************************************
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* @brief aotimer1_callback
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* @details AOTIMER1 Interrupt the callback function
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* @param[in] void
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* @param[out] void
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* @retval void
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***************************************************************************************
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*/
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__WEAK void aotimer1_callback(void *context)
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{ /* AOTimer1 中断回调处理事件 */
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}
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