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/*
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-07-12 wangyq the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include "board.h"
#include "drv_uart.h"
#include <lib_gpio.h>
#include <lib_uart.h>
#ifdef RT_USING_SERIAL
/* es8p uart driver */
struct es8p_uart
{
UART_TypeDef *huart;
IRQn_Type irq;
};
static rt_err_t es8px_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
GPIO_InitStruType gpio_initstruct;
UART_InitStruType uart_initstruct;
struct es8p_uart *uart;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
uart = (struct es8p_uart *)serial->parent.user_data;
gpio_initstruct.GPIO_Signal = GPIO_Pin_Signal_Digital;
gpio_initstruct.GPIO_OD = GPIO_ODE_Output_Disable;
gpio_initstruct.GPIO_PUEN = GPIO_PUE_Input_Enable;
gpio_initstruct.GPIO_PDEN = GPIO_PDE_Input_Disable;
gpio_initstruct.GPIO_DS = GPIO_DS_Output_Normal;
#ifdef BSP_USING_UART0
gpio_initstruct.GPIO_Func = GPIO_Func_2;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOB, GPIO_Pin_0, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOB, GPIO_Pin_1, &gpio_initstruct);
#endif
#ifdef BSP_USING_UART1
gpio_initstruct.GPIO_Func = GPIO_Func_1;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOA, GPIO_Pin_18, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOA, GPIO_Pin_17, &gpio_initstruct);
#endif
#ifdef BSP_USING_UART2
gpio_initstruct.GPIO_Func = GPIO_Func_2;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOA, GPIO_Pin_4, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOA, GPIO_Pin_5, &gpio_initstruct);
#endif
#ifdef BSP_USING_UART3
gpio_initstruct.GPIO_Func = GPIO_Func_2;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOA, GPIO_Pin_30, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOA, GPIO_Pin_29, &gpio_initstruct);
#endif
#ifdef BSP_USING_UART4
gpio_initstruct.GPIO_Func = GPIO_Func_1;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOB, GPIO_Pin_10, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOB, GPIO_Pin_11, &gpio_initstruct);
#endif
#ifdef BSP_USING_UART5
gpio_initstruct.GPIO_Func = GPIO_Func_1;
/* Initialize rx pin */
gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
GPIO_Init(GPIOB, GPIO_Pin_12, &gpio_initstruct);
/* Initialize tx pin ,the same as rx pin except mode */
gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
GPIO_Init(GPIOB, GPIO_Pin_13, &gpio_initstruct);
#endif
uart_initstruct.UART_ClockSet = UART_Clock_1;
uart_initstruct.UART_BaudRate = cfg->baud_rate;
uart_initstruct.UART_RxPolar = UART_Polar_Normal;
uart_initstruct.UART_TxPolar = UART_Polar_Normal;
if (cfg->data_bits == DATA_BITS_7)
{
uart_initstruct.UART_RxMode = UART_DataMode_7;
uart_initstruct.UART_TxMode = UART_DataMode_7;
if (cfg->parity == PARITY_EVEN)
{
uart_initstruct.UART_RxMode = UART_DataMode_7Even;
uart_initstruct.UART_TxMode = UART_DataMode_7Even;
}
else if (cfg->parity == PARITY_ODD)
{
uart_initstruct.UART_RxMode = UART_DataMode_7Odd;
uart_initstruct.UART_TxMode = UART_DataMode_7Odd;
}
}
else if (cfg->data_bits == DATA_BITS_8)
{
uart_initstruct.UART_RxMode = UART_DataMode_8;
uart_initstruct.UART_TxMode = UART_DataMode_8;
if (cfg->parity == PARITY_EVEN)
{
uart_initstruct.UART_RxMode = UART_DataMode_8Even;
uart_initstruct.UART_TxMode = UART_DataMode_8Even;
}
else if (cfg->parity == PARITY_ODD)
{
uart_initstruct.UART_RxMode = UART_DataMode_8Odd;
uart_initstruct.UART_TxMode = UART_DataMode_8Odd;
}
}
else if (cfg->data_bits == DATA_BITS_9)
{
uart_initstruct.UART_RxMode = UART_DataMode_9;
uart_initstruct.UART_TxMode = UART_DataMode_9;
}
if (cfg->bit_order == BIT_ORDER_MSB)
{
return RT_EINVAL;
}
if (cfg->invert == NRZ_INVERTED)
{
uart_initstruct.UART_RxPolar = UART_Polar_Opposite;
uart_initstruct.UART_TxPolar = UART_Polar_Opposite;
}
/* config uart function */
UART_Init(uart->huart, &uart_initstruct);
/* enable rx and tx */
uart->huart->CON.RXEN = 1;
uart->huart->CON.TXEN = 1;
NVIC_SetPriority(uart->irq, 1);
return RT_EOK;
}
static rt_err_t es8px_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct es8p_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct es8p_uart *)serial->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
NVIC_DisableIRQ(uart->irq);
/* disable interrupt */
UART_ITConfig(uart->huart, UART_IT_RB, DISABLE);
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
NVIC_EnableIRQ(uart->irq);
/* enable interrupt */
UART_ITConfig(uart->huart, UART_IT_RB, ENABLE);
break;
}
return RT_EOK;
}
static int es8px_putc(struct rt_serial_device *serial, char c)
{
struct es8p_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct es8p_uart *)serial->parent.user_data;
while (UART_GetFlagStatus(uart->huart, UART_FLAG_TB) == RESET) ;
UART_SendByte(uart->huart, c);
return 1;
}
static int es8px_getc(struct rt_serial_device *serial)
{
int ch = -1;
struct es8p_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct es8p_uart *)serial->parent.user_data;
if (UART_GetFlagStatus(uart->huart, UART_FLAG_RB))
{
ch = UART_RecByte(uart->huart);
}
return ch;
}
static const struct rt_uart_ops es8px_uart_ops =
{
es8px_configure,
es8px_control,
es8px_putc,
es8px_getc,
};
#ifdef BSP_USING_UART0
/* UART0 device driver structure */
struct es8p_uart uart0 =
{
UART0,
UART0_IRQn
};
struct rt_serial_device serial0;
void UART0_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART0->IF.RBIF)
{
rt_hw_serial_isr(&serial0, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART0 */
#ifdef BSP_USING_UART1
/* UART1 device driver structure */
struct es8p_uart uart1 =
{
UART1,
UART1_IRQn
};
struct rt_serial_device serial1;
void UART1_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART1->IF.RBIF)
{
rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART1 */
#ifdef BSP_USING_UART2
/* UART1 device driver structure */
struct es8p_uart uart2 =
{
UART2,
UART2_IRQn
};
struct rt_serial_device serial2;
void UART2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART2->IF.RBIF)
{
rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART2 */
#ifdef BSP_USING_UART3
/* UART3 device driver structure */
struct es8p_uart uart3 =
{
UART3,
UART3_IRQn
};
struct rt_serial_device serial3;
void UART3_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART3->IF.RBIF)
{
rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART3 */
#ifdef BSP_USING_UART4
/* UART4 device driver structure */
struct es8p_uart uart4 =
{
UART4,
UART4_IRQn
};
struct rt_serial_device serial4;
void UART4_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART4->IF.RBIF)
{
rt_hw_serial_isr(&serial4, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART4 */
#ifdef BSP_USING_UART5
/* UART5 device driver structure */
struct es8p_uart uart5 =
{
UART5,
UART5_IRQn
};
struct rt_serial_device serial5;
void UART5_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
if (UART5->IF.RBIF)
{
rt_hw_serial_isr(&serial5, RT_SERIAL_EVENT_RX_IND);
}
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* BSP_USING_UART5 */
int rt_hw_uart_init(void)
{
struct es8p_uart *uart;
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
#ifdef BSP_USING_UART0
uart = &uart0;
serial0.ops = &es8px_uart_ops;
serial0.config = config;
/* register UART0 device */
rt_hw_serial_register(&serial0, "uart0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART0 */
#ifdef BSP_USING_UART1
uart = &uart1;
serial1.ops = &es8px_uart_ops;
serial1.config = config;
/* register UART1 device */
rt_hw_serial_register(&serial1, "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART1 */
#ifdef BSP_USING_UART2
uart = &uart2;
serial2.ops = &es8px_uart_ops;
serial2.config = config;
/* register UART2 device */
rt_hw_serial_register(&serial2, "uart2",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART2 */
#ifdef BSP_USING_UART3
uart = &uart3;
serial3.ops = &es8px_uart_ops;
serial3.config = config;
/* register UART3 device */
rt_hw_serial_register(&serial3, "uart3",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART3 */
#ifdef BSP_USING_UART4
uart = &uart4;
serial4.ops = &es8px_uart_ops;
serial4.config = config;
/* register UART4 device */
rt_hw_serial_register(&serial4, "uart4",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART4 */
#ifdef BSP_USING_UART5
uart = &uart5;
serial5.ops = &es8px_uart_ops;
serial5.config = config;
/* register UART5 device */
rt_hw_serial_register(&serial5, "uart5",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
#endif /* BSP_USING_UART5 */
return 0;
}
INIT_BOARD_EXPORT(rt_hw_uart_init);
#endif
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