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/*
* Copyright : (C) 2022 Phytium Information Technology, Inc.
* All Rights Reserved.
*
* This program is OPEN SOURCE software: you can redistribute it and/or modify it
* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
* either version 1.0 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Phytium Public License for more details.
*
*
* FilePath: fpl011_intr.c
* Date: 2022-02-10 14:53:42
* LastEditTime: 2022-02-18 09:06:30
* Description: This files is for uart irq functions
*
* Modify History:
* Ver Who Date Changes
* ----- ------ -------- --------------------------------------
*/
/***************************** Include Files *********************************/
#include "fpl011.h"
/************************** Constant Definitions *****************************/
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Variable Definitions *****************************/
/************************** Function Prototypes ******************************/
/*****************************************************************************/
extern u32 FPl011SendBuffer(FPl011 *uart_p);
extern u32 FPl011ReceiveBuffer(FPl011 *uart_p);
static void FPl011ReceiveErrorHandler(FPl011 *uart_p, u32 InterruptStatus);
static void FPl011ReceiveDataHandler(FPl011 *uart_p);
static void FPl011ReceiveTimeoutHandler(FPl011 *uart_p);
static void FPl011SendDataHandler(FPl011 *uart_p, u32 InterruptStatus);
/**
* @name: FPl011GetInterruptMask
* @msg: 此函数获取所有串口中断的mask。
* @param uart_p
* @return mask
*/
/**
* @name: FPl011GetInterruptMask
* @msg: This function gets the interrupt mask.
* @param uart_p is a pointer to the uart instance
* @return {*}
*/
u32 FPl011GetInterruptMask(FPl011 *uart_p)
{
FASSERT(uart_p != NULL);
return FUART_READREG32(uart_p->config.base_address, FPL011IMSC_OFFSET);
}
/**
* @name: FPl011SetInterruptMask
* @msg: This function sets the interrupt mask.
* @param uart_p is a pointer to the uart instance
* @param mask contains the interrupts to be enabled or disabled.
* A '1' enables an interrupt, and a '0' disables.
*/
void FPl011SetInterruptMask(FPl011 *uart_p, u32 mask)
{
u32 temp_mask = mask;
FASSERT(uart_p != NULL);
temp_mask &= FPL011IMSC_ALLM;
FUART_WRITEREG32(uart_p->config.base_address, FPL011IMSC_OFFSET, temp_mask);
}
/**
* @name: FPl011SetHandler
* @msg: This function sets the handler that will be called when an event (interrupt)
* occurs that needs application's attention.
* @param uart_p is a pointer to the uart instance
* @param fun_p is the pointer to the callback function.
* @param args is the upper layer callback reference passed back
* when the callback function is invoked.
* @return {*}
*/
void FPl011SetHandler(FPl011 *uart_p, FPl011EventHandler fun_p, void *args)
{
FASSERT(uart_p != NULL);
FASSERT(fun_p != NULL);
FASSERT(uart_p->is_ready == FT_COMPONENT_IS_READY);
uart_p->handler = fun_p;
uart_p->args = args;
}
/**
* @name: FPl011InterruptHandler
* @msg: This function is the interrupt handler for the driver.
* It must be connected to an interrupt system by the application such that it
* can be called when an interrupt occurs.
* @param vector Irq num ,Don't need attention .
* @param param contains a pointer to the driver instance
*/
void FPl011InterruptHandler(s32 vector, void *param)
{
FPl011 *uart_p = (FPl011 *)param;
u32 reg_value = 0;
FASSERT(uart_p != NULL);
FASSERT(uart_p->is_ready == FT_COMPONENT_IS_READY);
reg_value = FUART_READREG32(uart_p->config.base_address, FPL011IMSC_OFFSET);
reg_value &= FUART_READREG32(uart_p->config.base_address, FPL011MIS_OFFSET);
if ((reg_value & ((u32)FPL011MIS_RXMIS)) != (u32)0)
{
/* Received data interrupt */
FPl011ReceiveDataHandler(uart_p);
}
if ((reg_value & ((u32)FPL011MIS_TXMIS)) != (u32)0)
{
/* Transmit data interrupt */
FPl011SendDataHandler(uart_p, reg_value);
}
if (((reg_value) & ((u32)FPL011MIS_OEMIS | (u32)FPL011MIS_BEMIS | (u32)FPL011MIS_PEMIS | (u32)FPL011MIS_FEMIS)) != (u32)0)
{
/* Received Error Status interrupt */
FPl011ReceiveErrorHandler(uart_p, reg_value);
}
if ((reg_value & ((u32)FPL011MIS_RTMIS)) != (u32)0)
{
/* Received Timeout interrupt */
FPl011ReceiveTimeoutHandler(uart_p);
}
if (((reg_value) & ((u32)FPL011MIS_DSRMMIS | (u32)FPL011MIS_DCDMMIS | (u32)FPL011MIS_CTSMMIS | (u32)FPL011MIS_RIMMIS)) != (u32)0)
{
/* Modem status interrupt */
}
/* Clear the interrupt status. */
FUART_WRITEREG32(uart_p->config.base_address, FPL011ICR_OFFSET,
reg_value);
}
static void FPl011ReceiveErrorHandler(FPl011 *uart_p, u32 InterruptStatus)
{
uart_p->rxbs_error = 0;
if (((InterruptStatus) & ((u32)FPL011MIS_OEMIS | (u32)FPL011MIS_BEMIS | (u32)FPL011MIS_PEMIS | (u32)FPL011MIS_FEMIS)) != 0)
{
uart_p->rxbs_error = 1;
}
(void)FPl011ReceiveBuffer(uart_p);
if (0 == uart_p->rxbs_error)
{
if (uart_p->handler)
{
uart_p->handler(uart_p->args, FPL011_EVENT_RECV_ERROR, uart_p->receive_buffer.requested_bytes - uart_p->receive_buffer.remaining_bytes);
}
}
}
/**
* @name: FPl011ReceiveDataHandler
* @msg:
* @param {*}
* @return {*}
*/
static void FPl011ReceiveDataHandler(FPl011 *uart_p)
{
if ((u32)0 != uart_p->receive_buffer.remaining_bytes)
{
(void)FPl011ReceiveBuffer(uart_p);
}
if ((u32)0 == uart_p->receive_buffer.remaining_bytes)
{
if (uart_p->handler)
{
uart_p->handler(uart_p->args, FPL011_EVENT_RECV_DATA, uart_p->receive_buffer.requested_bytes - uart_p->receive_buffer.remaining_bytes);
}
}
}
static void FPl011ReceiveTimeoutHandler(FPl011 *uart_p)
{
u32 event;
if ((u32)0 != uart_p->receive_buffer.remaining_bytes)
{
(void)FPl011ReceiveBuffer(uart_p);
}
if ((u32)0 == uart_p->receive_buffer.remaining_bytes)
{
event = FPL011_EVENT_RECV_TOUT;
}
else
{
event = FPL011_EVENT_RECV_DATA;
}
if (uart_p->handler)
{
uart_p->handler(uart_p->args, event, uart_p->receive_buffer.requested_bytes - uart_p->receive_buffer.remaining_bytes);
}
}
static void FPl011SendDataHandler(FPl011 *uart_p, u32 InterruptStatus)
{
FPl011SendBuffer(uart_p);
if (uart_p->send_buffer.remaining_bytes == (u32)0)
{
if (uart_p->handler)
{
uart_p->handler(uart_p->args, FPL011_EVENT_SENT_DATA, uart_p->send_buffer.requested_bytes);
}
}
}
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