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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
* 2022-10-26 huanghe first commit
*
*/
#include "board.h"
#include "drv_usart.h"
#include "interrupt.h"
#include "fpl011.h"
#include "rtconfig.h"
#include "fprintk.h"
#ifdef RT_USING_SERIAL
extern u32 FUart_GetInterruptMask(FPl011 *uart_ptr);
static void Ft_Os_Uart_Callback(void *Args, u32 Event, u32 EventData);
static void rt_hw_uart_isr(int irqno, void *param)
{
FPl011InterruptHandler(irqno, param);
}
static rt_err_t uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
struct drv_usart *uart = RT_NULL;
FPl011 *uart_hw = RT_NULL;
u32 intr_mask;
FPl011Config config;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
uart = rt_container_of(serial, struct drv_usart, serial);
uart_hw = uart->handle;
config = *(const FPl011Config *)FPl011LookupConfig(uart->config.uart_instance);
RT_ASSERT(FPl011CfgInitialize(uart_hw, &config) == FT_SUCCESS);
FPl011SetHandler(uart_hw, Ft_Os_Uart_Callback, serial);
FPl011SetRxFifoThreadhold(uart_hw, FPL011IFLS_RXIFLSEL_1_4);
FPl011SetTxFifoThreadHold(uart_hw, FPL011IFLS_TXIFLSEL_1_2);
//<! 打开接收中断
intr_mask = uart->config.isr_event_mask;
FPl011SetInterruptMask(uart_hw, intr_mask);
FPl011SetOptions(uart_hw, FPL011_OPTION_UARTEN | FPL011_OPTION_RXEN | FPL011_OPTION_TXEN | FPL011_OPTION_FIFOEN);
rt_hw_interrupt_set_priority(uart_hw->config.irq_num, uart->config.isr_priority);
rt_hw_interrupt_install(uart_hw->config.irq_num, rt_hw_uart_isr, uart_hw, "uart");
rt_hw_interrupt_umask(uart_hw->config.irq_num);
return RT_EOK;
}
static rt_err_t uart_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct drv_usart *uart = RT_NULL;
FPl011 *uart_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct drv_usart, serial);
uart_ptr = uart->handle;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
rt_hw_interrupt_mask(uart_ptr->config.irq_num);
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
rt_hw_interrupt_umask(uart_ptr->config.irq_num);
break;
}
return RT_EOK;
}
static void Ft_Os_Uart_Callback(void *Args, u32 Event, u32 EventData)
{
struct rt_serial_device *serial = (struct rt_serial_device *)Args;
if (FPL011_EVENT_RECV_DATA == Event || FPL011_EVENT_RECV_TOUT == Event)
{
if (serial->serial_rx)
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
else if (FPL011_EVENT_RECV_ERROR == Event)
{
}
else if (FPL011_EVENT_SENT_DATA == Event)
{
}
else if (FPL011_EVENT_PARE_FRAME_BRKE == Event)
{
}
else if (FPL011_EVENT_RECV_ORERR == Event)
{
}
if (FPL011_EVENT_SENT_DATA == Event)
{
}
else
{
}
}
static int uart_putc(struct rt_serial_device *serial, char c)
{
struct drv_usart *uart = RT_NULL;
FPl011 *uart_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct drv_usart, serial);
uart_ptr = uart->handle;
FPl011SendByte(uart_ptr->config.base_address, c);
return 1;
}
u8 FPl011RecvByteNoBlocking(u32 addr)
{
u32 recieved_byte;
while (FUART_ISRECEIVEDATA(addr))
{
return 0xff;
}
recieved_byte = FUART_READREG32(addr, FPL011DR_OFFSET);
return recieved_byte;
}
static int uart_getc(struct rt_serial_device *serial)
{
int ch;
struct drv_usart *uart = RT_NULL;
FPl011 *uart_ptr = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct drv_usart, serial);
uart_ptr = uart->handle;
ch = FPl011RecvByteNoBlocking(uart_ptr->config.base_address);
if (ch == 0xff)
{
ch = -1;
rt_kprintf("") ;
}
else
{
//
}
return ch;
}
static const struct rt_uart_ops _uart_ops =
{
uart_configure,
uart_control,
uart_putc,
uart_getc,
NULL
};
#define RT_USING_UART0
#define RT_USING_UART1
#ifdef RT_USING_UART0
static FPl011 Ft_Uart0;
static struct drv_usart _RtUart0;
#endif
#ifdef RT_USING_UART1
static FPl011 Ft_Uart1;
static struct drv_usart _RtUart1;
#endif
int rt_hw_uart_init(void)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
#ifdef RT_USING_UART0
config.bufsz = RT_SERIAL_RB_BUFSZ;
_RtUart0.serial.ops = &_uart_ops;
_RtUart0.serial.config = config;
// Ft_Uart0.config.instance_id = FUART0_ID;
_RtUart0.handle = &Ft_Uart0;
_RtUart0.config.uart_instance = FUART0_ID;
_RtUart0.config.isr_priority = 0xd0;
_RtUart0.config.isr_event_mask = (RTOS_UART_ISR_OEIM_MASK | RTOS_UART_ISR_BEIM_MASK | RTOS_UART_ISR_PEIM_MASK | RTOS_UART_ISR_FEIM_MASK | RTOS_UART_ISR_RTIM_MASK | RTOS_UART_ISR_RXIM_MASK);
_RtUart0.config.uart_baudrate = 115200;
rt_hw_serial_register(&_RtUart0.serial, "uart0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
&_RtUart0);
#endif
#ifdef RT_USING_UART1
config.bufsz = RT_SERIAL_RB_BUFSZ;
_RtUart1.serial.ops = &_uart_ops;
_RtUart1.serial.config = config;
// Ft_Uart1.config.instance_id = FUART1_ID;
_RtUart1.handle = &Ft_Uart1;
_RtUart1.config.uart_instance = FUART1_ID;
_RtUart1.config.isr_priority = 0xd0;
_RtUart1.config.isr_event_mask = (RTOS_UART_ISR_OEIM_MASK | RTOS_UART_ISR_BEIM_MASK | RTOS_UART_ISR_PEIM_MASK | RTOS_UART_ISR_FEIM_MASK | RTOS_UART_ISR_RTIM_MASK | RTOS_UART_ISR_RXIM_MASK);
_RtUart1.config.uart_baudrate = 115200;
rt_hw_serial_register(&_RtUart1.serial, "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
&_RtUart1);
#endif
return 0;
}
INIT_BOARD_EXPORT(rt_hw_uart_init);
#endif /* RT_USING_SERIAL */
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