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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Email: [email protected]
*
* Change Logs:
* Date Author Notes
* 2025-05-23 liyilun first commit
*/
#include "rtconfig.h"
#include <rtdevice.h>
#include "board.h"
#include <mmu.h>
#include "drv_usart_msg.h"
#include "interrupt.h"
#include "fio_mux.h"
#include "fparameters.h"
#ifdef RT_USING_SMART
#include <ioremap.h>
#endif
#define RING_BUFFER_WAIT_TIMEOUT 10000
#define RING_BUFFER_SIZE 64
struct rt_ringbuffer *recv_ringbuffer = NULL;
rt_inline enum rt_ringbuffer_state rt_ringbuffer_status(struct rt_ringbuffer *rb)
{
if (rb->read_index == rb->write_index)
{
if (rb->read_mirror == rb->write_mirror)
return RT_RINGBUFFER_EMPTY;
else
return RT_RINGBUFFER_FULL;
}
return RT_RINGBUFFER_HALFFULL;
}
static void Ft_Os_Uart_Msg_Callback(void *Args, u32 Event, u32 EventData);
static void rt_hw_uart_msg_isr(int irqno, void *param)
{
FUartMsgInterruptHandler(irqno, param);
}
static rt_err_t uart_msg_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
struct drv_usart_msg *uart_msg = RT_NULL;
FUartMsg *uart_msg_hw = RT_NULL;
FUartMsgConfig config;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
uart_msg = rt_container_of(serial, struct drv_usart_msg, serial);
uart_msg_hw = uart_msg->handle;
config = *(const FUartMsgConfig *)FUartMsgLookupConfig(uart_msg->config.uart_instance);
#ifdef RT_USING_SMART
config.msg.regfile = (uintptr)rt_ioremap((void *)config.msg.regfile, 0x1000);
config.msg.shmem = (uintptr)rt_ioremap((void *)config.msg.shmem, 0x1000);
#endif
FIOPadSetUartMux(uart_msg->config.uart_instance);
RT_ASSERT(FUartMsgCfgInitialize(uart_msg_hw, &config) == FT_SUCCESS);
FUartMsgSetStartUp(uart_msg_hw);
FUartMsgSetHandler(uart_msg_hw, Ft_Os_Uart_Msg_Callback, serial);
//<! 打开接收中断
rt_hw_interrupt_set_priority(uart_msg_hw->config.irq_num, uart_msg->config.isr_priority);
rt_hw_interrupt_install(uart_msg_hw->config.irq_num, rt_hw_uart_msg_isr, uart_msg_hw, "uart");
rt_hw_interrupt_umask(uart_msg_hw->config.irq_num);
FUartMsgEnableInterrups(uart_msg_hw);
return RT_EOK;
}
static rt_err_t uart_msg_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct drv_usart_msg *uart_msg = RT_NULL;
FUartMsg *uart_msg_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart_msg = rt_container_of(serial, struct drv_usart_msg, serial);
uart_msg_ptr = uart_msg->handle;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
rt_hw_interrupt_mask(uart_msg_ptr->config.irq_num);
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
rt_hw_interrupt_umask(uart_msg_ptr->config.irq_num);
break;
}
return RT_EOK;
}
static int uart_msg_putc(struct rt_serial_device *serial, char c)
{
struct drv_usart_msg *uart_msg = RT_NULL;
FUartMsg *uart_msg_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart_msg = rt_container_of(serial, struct drv_usart_msg, serial);
uart_msg_ptr = uart_msg->handle;
while(-1 == FUartMsgTxChar(&(uart_msg_ptr->config.msg), (u8)c))
{
}
return 1;
}
void FUartMsgRecvBufferNoBlocking(FUartMsg *uart_p)
{
u8 data[16] = {0};
rt_size_t write_length = 0;
u32 received_count = 0;
while (!FUartMsgRxRingBufferIsEmpty(uart_p->config.msg.regfile))
{
received_count += FUartMsgRxChars(&(uart_p->config.msg), data, 16);
}
if(received_count > 0)
{
write_length = rt_ringbuffer_put(recv_ringbuffer, data, received_count);
RT_ASSERT(write_length == received_count);
}
}
static int uart_msg_getc(struct rt_serial_device *serial)
{
int ch;
struct drv_usart_msg *uart_msg = RT_NULL;
FUartMsg *uart_msg_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart_msg = rt_container_of(serial, struct drv_usart_msg, serial);
uart_msg_ptr = uart_msg->handle;
if(RT_RINGBUFFER_EMPTY == rt_ringbuffer_status(recv_ringbuffer))
{
FUartMsgRecvBufferNoBlocking(uart_msg_ptr);
}
if(0 == rt_ringbuffer_getchar(recv_ringbuffer, (rt_uint8_t *)&ch))
{
return -1;
}
if (ch == 0xffff)
{
ch = -1;
}
else
{
ch &= 0xff;
}
return ch;
}
static void Ft_Os_Uart_Msg_Callback(void *Args, u32 Event, u32 EventData)
{
struct rt_serial_device *serial = (struct rt_serial_device *)Args;
if(FUART_EVENT_RECV_DATA == Event)
{
if(serial->serial_rx)
{
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
}
else if(FUART_EVENT_SENT_DATA == Event)
{
}
else
{
}
}
static const struct rt_uart_ops _uart_ops =
{
uart_msg_configure,
uart_msg_control,
uart_msg_putc,
uart_msg_getc,
NULL
};
static int uart_msg_init(struct drv_usart_msg *uart_msg_dev)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
config.bufsz = RT_SERIAL_RB_BUFSZ;
uart_msg_dev->serial.ops = &_uart_ops;
uart_msg_dev->serial.config = config;
uart_msg_dev->config.isr_priority = 0xd0;
uart_msg_dev->config.isr_event_mask = RTOS_UART_MSG_RX_ISR_MASK | RTOS_UART_MSG_TX_ISR_MASK;
uart_msg_dev->config.uart_baudrate = BAUD_RATE_115200;
recv_ringbuffer = rt_ringbuffer_create(RING_BUFFER_SIZE);
RT_ASSERT(recv_ringbuffer != RT_NULL);
rt_hw_serial_register(&uart_msg_dev->serial, uart_msg_dev->name,
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
uart_msg_dev);
return 0;
}
#ifdef RT_USING_UART0_MSG
static FUartMsg Ft_Uart0_Msg;
static struct drv_usart_msg drv_uart0_msg;
#endif
#ifdef RT_USING_UART1_MSG
static FUartMsg Ft_Uart1_Msg;
static struct drv_usart_msg drv_uart1_msg;
#endif
#ifdef RT_USING_UART2_MSG
static FUartMsg Ft_Uart2_Msg;
static struct drv_usart_msg drv_uart2_msg;
#endif
int rt_hw_uart_init(void)
{
#ifdef RT_USING_UART0_MSG
drv_uart0_msg.name = "uart0";
drv_uart0_msg.handle = &Ft_Uart0_Msg;
drv_uart0_msg.config.uart_instance = FUART0_MSG_ID;
uart_msg_init(&drv_uart0_msg);
#endif
#ifdef RT_USING_UART1_MSG
drv_uart1_msg.name = "uart1";
drv_uart1_msg.handle = &Ft_Uart1_Msg;
drv_uart1_msg.config.uart_instance = FUART1_MSG_ID;
uart_msg_init(&drv_uart1_msg);
#endif
#ifdef RT_USING_UART2_MSG
drv_uart2_msg.name = "uart2";
drv_uart2_msg.handle = &Ft_Uart2_Msg;
drv_uart2_msg.config.uart_instance = FUART2_MSG_ID;
uart_msg_init(&drv_uart2_msg);
#endif
return 0;
}
INIT_BOARD_EXPORT(rt_hw_uart_init);
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