330 lines
9.7 KiB
C
330 lines
9.7 KiB
C
/*
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* Copyright (c) 2025, LISTENAI
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file arcs_aon_timer.c
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* @brief AON Timer 适配 LISA硬件定时器驱动框架
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*/
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#include "lisa_hwtimer.h"
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#include "ClockManager.h"
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#include "Driver_AON_TIMER.h"
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#include <string.h>
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#include <lisa_mutex.h>
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#define LOG_TAG "arcs_aon_timer"
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#include <lisa_log.h>
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#define DEVICE_LOCK(priv) \
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do { \
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if (priv->mutex) { \
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lisa_mutex_lock(priv->mutex, LISA_OS_WAIT_FOREVER); \
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} \
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} while (0)
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#define DEVICE_UNLOCK(priv) \
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do { \
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if (priv->mutex) { \
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lisa_mutex_unlock(priv->mutex); \
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} \
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} while (0)
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/* XO32K 是外部32K晶振，固定频率 */
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#define AON_TIMER_CLK_XO32K 32768
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/* AON Timer 私有数据结构 */
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typedef struct {
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void *aon_timer_handler;
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lisa_hwtimer_callback_t callback;
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void *user_data;
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uint32_t frequency_hz; /* 当前设置的频率 */
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bool is_running;
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lisa_mutex_t *mutex; /* 互斥锁 */
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} arcs_aon_timer_priv_data_t;
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/* 静态实例数据 */
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static arcs_aon_timer_priv_data_t arcs_aon_timer_priv = {
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.is_running = false,
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.frequency_hz = 0, /* 在初始化时设置 */
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};
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/* AON Timer 事件回调 */
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static void arcs_aon_timer_event_callback(uint32_t event, void *workspace)
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{
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)workspace;
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if (data && data->callback) {
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data->callback(data->user_data);
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}
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}
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/* 获取硬件能力 */
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static int arcs_aon_timer_get_capabilities(lisa_device_t *dev, lisa_hwtimer_capabilities_t *caps)
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{
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if (!lisa_device_is_initialized(dev) || !caps) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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caps->channel_count = 1; /* AON Timer 只有1个通道 */
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caps->max_count = 0xFFFFFF; /* 24位计数器 */
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caps->min_count = 1;
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caps->max_freq_hz = data->frequency_hz; /* 使用实际的时钟频率 */
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caps->min_freq_hz = data->frequency_hz;
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caps->support_oneshot = true; /* 支持单次模式 */
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caps->support_periodic = true; /* 支持周期模式 */
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return LISA_DEVICE_OK;
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}
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/* 设置频率 */
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static int arcs_aon_timer_set_frequency(lisa_device_t *dev, uint8_t channel, uint32_t freq_hz)
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{
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if (!lisa_device_is_initialized(dev)) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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/* AON Timer 只支持 Kconfig 配置的时钟源频率 */
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if (freq_hz != data->frequency_hz) {
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LISA_LOGE(LOG_TAG, "Invalid frequency: %d Hz, only %d Hz is supported", freq_hz, data->frequency_hz);
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return LISA_DEVICE_ERR_RANGE;
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}
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data->frequency_hz = freq_hz;
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return LISA_DEVICE_OK;
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}
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/* 启动定时器 */
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static int arcs_aon_timer_start(lisa_device_t *dev, uint8_t channel, uint32_t count, lisa_hwtimer_mode_t mode)
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{
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if (!lisa_device_is_initialized(dev)) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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DEVICE_LOCK(data);
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/* 检查是否设置了回调函数，如果没有设置则不允许启动定时器
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* 避免 HAL 库中断处理时的空指针访问 */
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if (!data->callback) {
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LISA_LOGE(LOG_TAG, "Callback not set for channel %d, cannot start timer", channel);
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 配置定时器模式和时钟源 */
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uint32_t control = HAL_AON_TIMER_INTERRUPT_Enabled;
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/* 根据模式选择定时器模式 */
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if (mode == LISA_HWTIMER_MODE_ONESHOT) {
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control |= HAL_AON_TIMER_MODE_Normal;
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} else {
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control |= HAL_AON_TIMER_MODE_Repeat;
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}
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/* 根据 Kconfig 配置选择时钟源 */
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#ifdef CONFIG_LISA_HWTIMER_ARCS_AON_TIMER_CLK_XO32K
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control |= HAL_AON_TIMER_CLK_SEL_Xo32k;
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#else
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control |= HAL_AON_TIMER_CLK_SEL_Rc32k;
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#endif
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AON_TIMER_Control(data->aon_timer_handler, control);
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/* 设置计数周期 */
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AON_TIMER_SetTimerPeriodByCount(data->aon_timer_handler, count);
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/* 启动定时器 */
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AON_TIMER_StartTimer(data->aon_timer_handler);
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data->is_running = true;
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_OK;
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}
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/* 停止定时器 */
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static int arcs_aon_timer_stop(lisa_device_t *dev, uint8_t channel)
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{
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if (!lisa_device_is_initialized(dev)) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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DEVICE_LOCK(data);
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if (!data->is_running) {
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_ERR_INVALID;
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}
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AON_TIMER_StopTimer(data->aon_timer_handler);
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data->is_running = false;
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_OK;
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}
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/* 重置定时器 */
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static int arcs_aon_timer_reset(lisa_device_t *dev, uint8_t channel)
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{
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if (!lisa_device_is_initialized(dev)) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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DEVICE_LOCK(data);
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if (!data->is_running) {
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_ERR_INVALID;
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}
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/* AON Timer 没有独立的reset功能，通过停止再启动实现 */
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AON_TIMER_StopTimer(data->aon_timer_handler);
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AON_TIMER_StartTimer(data->aon_timer_handler);
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_OK;
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}
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/* 获取当前计数值 */
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static int arcs_aon_timer_get_value(lisa_device_t *dev, uint8_t channel, uint32_t *count)
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{
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if (!lisa_device_is_initialized(dev) || !count) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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AON_TIMER_ReadTimerCount(data->aon_timer_handler, count);
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return LISA_DEVICE_OK;
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}
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/* 设置回调函数 */
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static int arcs_aon_timer_set_callback(lisa_device_t *dev, uint8_t channel,
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lisa_hwtimer_callback_t callback, void *user_data)
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{
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if (!lisa_device_is_initialized(dev)) {
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return LISA_DEVICE_ERR_INVALID;
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}
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arcs_aon_timer_priv_data_t *data = (arcs_aon_timer_priv_data_t *)dev->priv_data;
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if (!data) {
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return LISA_DEVICE_ERR_INVALID;
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}
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/* 检查通道号 */
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if (channel != 0) {
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return LISA_DEVICE_ERR_RANGE;
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}
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DEVICE_LOCK(data);
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data->callback = callback;
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data->user_data = user_data;
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DEVICE_UNLOCK(data);
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return LISA_DEVICE_OK;
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}
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/* AON Timer API 实现 */
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static const lisa_hwtimer_api_t arcs_aon_timer_api = {
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.get_capabilities = arcs_aon_timer_get_capabilities,
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.set_frequency = arcs_aon_timer_set_frequency,
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.start = arcs_aon_timer_start,
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.stop = arcs_aon_timer_stop,
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.reset = arcs_aon_timer_reset,
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.get_value = arcs_aon_timer_get_value,
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.set_callback = arcs_aon_timer_set_callback,
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};
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/* AON Timer 初始化函数 */
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static int arcs_aon_timer_init(void)
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{
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/* 根据配置选择时钟源 */
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#ifdef CONFIG_LISA_HWTIMER_ARCS_AON_TIMER_CLK_XO32K
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/* 使用外部32K晶振，固定频率 */
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arcs_aon_timer_priv.frequency_hz = AON_TIMER_CLK_XO32K;
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#else
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/* 使用内部RC32K，通过CRM动态获取频率 */
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arcs_aon_timer_priv.frequency_hz = CRM_GetSrcFreq(CRM_IpSrcAon32kClk);
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#endif
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/* 创建互斥锁 */
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arcs_aon_timer_priv.mutex = lisa_mutex_create();
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if (!arcs_aon_timer_priv.mutex) {
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LISA_LOGE(LOG_TAG, "Failed to create mutex");
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return LISA_DEVICE_ERR_INIT_FAIL;
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}
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/* 初始化 AON Timer 硬件 */
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arcs_aon_timer_priv.aon_timer_handler = AON_TIMER();
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AON_TIMER_Initialize(arcs_aon_timer_priv.aon_timer_handler, arcs_aon_timer_event_callback,
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&arcs_aon_timer_priv);
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AON_TIMER_PowerControl(arcs_aon_timer_priv.aon_timer_handler, CSK_POWER_FULL);
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return LISA_DEVICE_OK;
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}
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LISA_DEVICE_REGISTER(aon_timer, &arcs_aon_timer_api, &arcs_aon_timer_priv, NULL, arcs_aon_timer_init,
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LISA_DEVICE_PRIORITY_NORMAL);
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