109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/*
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* Copyright : (C) 2022 Phytium Information Technology, Inc.
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* All Rights Reserved.
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*
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* This program is OPEN SOURCE software: you can redistribute it and/or modify it
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* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
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* either version 1.0 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the Phytium Public License for more details.
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*
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*
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* FilePath: fpwm_intr.c
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* Date: 2022-02-10 14:53:42
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* LastEditTime: 2022-04-25 11:45:05
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* Description: This file is for pwm interrupt handler implementation.
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*
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* Modify History:
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* Ver Who Date Changes
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* ----- ------ -------- --------------------------------------
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* 1.0 wangxiaodong 2022/4/25 init commit
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*/
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#include "fparameters.h"
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#include "fassert.h"
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#include "fpwm.h"
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#include "fpwm_hw.h"
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#define FT_PWM_DEBUG_TAG "FT_PWM_INTR"
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#define FPWM_DEBUG(format, ...) FT_DEBUG_PRINT_D(FT_PWM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FPWM_INFO(format, ...) FT_DEBUG_PRINT_I(FT_PWM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FPWM_WARN(format, ...) FT_DEBUG_PRINT_W(FT_PWM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FPWM_ERROR(format, ...) FT_DEBUG_PRINT_E(FT_PWM_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FPWM_CALL_INTR_EVENT_HANDLDER(instance_p, event) \
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if (instance_p->event_handler[event]) \
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instance_p->event_handler[event](instance_p->event_param[event])
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/**
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* @name: FPwmRegisterInterruptHandler
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* @msg: register FPwm interrupt handler function
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* @param {FPwm} *instance_p, pointer to the pwm instance
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* @param {FPwmIntrEvtType} event_type, interrupt event type
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* @param {FPwmEvtHandler} handler, interrupt event handler
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* @param {void} *param, contains a pointer to the driver instance
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* @return {*}
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*/
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void FPwmRegisterInterruptHandler(FPwmCtrl *instance_p, FPwmIntrEventType event_type, FPwmIntrEventHandler handler, void *param)
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{
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FASSERT(instance_p);
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FASSERT(event_type < FPWM_INTR_EVENT_NUM);
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instance_p->event_handler[event_type] = handler;
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instance_p->event_param[event_type] = param;
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}
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/**
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* @name: FPwmIntrHandler
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* @msg: This function is the interrupt handler for the driver.
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* It must be connected to an interrupt system by the application such that it
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* can be called when an interrupt occurs.
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* @param vector Irq num ,Don't need attention .
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* @param args contains a pointer to the driver instance
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*/
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void FPwmIntrHandler(s32 vector, void *args)
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{
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u32 status;
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static int i = 0;
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FPwmCtrl *pctrl = (FPwmCtrl *)args;
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FASSERT(pctrl != NULL);
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FASSERT(pctrl->is_ready == FT_COMPONENT_IS_READY);
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uintptr pwm_base_addr = 0;
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u8 channel = 0;
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for (channel = 0; channel < FPWM_MODE_CHANNEL; channel++)
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{
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pwm_base_addr = pctrl->config.pwm_base_addr + FPWM_N(channel);
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status = FPWM_READ_REG32(pwm_base_addr, FPWM_CTRL_OFFSET);
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if (!(status & (FPWM_CTRL_INTR_COUNTER_ENABLE | FPWM_CTRL_INTR_FIFO_EMPTY_ENABLE)))
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{
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continue;
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}
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status = FPWM_READ_REG32(pwm_base_addr, FPWM_STATE_OFFSET);
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if (0 == status)
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{
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continue;
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}
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/* Check for the type of error interrupt and Processing it */
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if (status & FPWM_STATE_OVFIF_COUNTER)
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{
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status &= (~FPWM_STATE_OVFIF_COUNTER);
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FPWM_SETBIT(pwm_base_addr, FPWM_STATE_OFFSET, FPWM_STATE_COUNTER_CLEAR);
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FPWM_CALL_INTR_EVENT_HANDLDER(pctrl, FPWM_INTR_EVENT_COUNTER);
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}
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if (status & FPWM_STATE_FIFO_EMPTY)
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{
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FPWM_SETBIT(pwm_base_addr, FPWM_STATE_OFFSET, FPWM_STATE_FIFO_EMPTY);
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FPWM_CALL_INTR_EVENT_HANDLDER(pctrl, FPWM_INTR_EVENT_FIFO_EMPTY);
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}
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}
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}
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