297 lines
7.3 KiB
C
297 lines
7.3 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2019-10-23 yuzrain the first version
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <rtthread.h>
|
||
|
|
#include <rtdevice.h>
|
||
|
|
#include "board.h"
|
||
|
|
#include "drv_uart.h"
|
||
|
|
#include "md_gpio.h"
|
||
|
|
#include "md_uart.h"
|
||
|
|
|
||
|
|
#ifdef RT_USING_SERIAL
|
||
|
|
|
||
|
|
/* es32 uart driver */
|
||
|
|
struct es32_uart
|
||
|
|
{
|
||
|
|
UART_TypeDef *huart;
|
||
|
|
IRQn_Type irq;
|
||
|
|
};
|
||
|
|
|
||
|
|
static rt_err_t es32f0x_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
|
||
|
|
{
|
||
|
|
struct es32_uart *uart;
|
||
|
|
RT_ASSERT(serial != RT_NULL);
|
||
|
|
RT_ASSERT(cfg != RT_NULL);
|
||
|
|
uart = (struct es32_uart *)serial->parent.user_data;
|
||
|
|
|
||
|
|
/* Close TX/RX temporarily */
|
||
|
|
md_uart_disable_lcon_txen(uart->huart);
|
||
|
|
md_uart_disable_lcon_rxen(uart->huart);
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART1
|
||
|
|
/* Open UART1 clock */
|
||
|
|
SET_BIT(RCU->APB2EN, RCU_APB2EN_UART1EN_MSK);
|
||
|
|
|
||
|
|
/* Config UART1 GPIO pin */
|
||
|
|
md_gpio_set_pull (GPIOB, MD_GPIO_PIN_7, MD_GPIO_PULL_UP);
|
||
|
|
md_gpio_set_mode (GPIOB, MD_GPIO_PIN_6, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_mode (GPIOB, MD_GPIO_PIN_7, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_function0_7 (GPIOB, MD_GPIO_PIN_6, MD_GPIO_AF2);
|
||
|
|
md_gpio_set_function0_7 (GPIOB, MD_GPIO_PIN_7, MD_GPIO_AF2);
|
||
|
|
#endif /* uart2 gpio init */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART2
|
||
|
|
/* Open UART2 clock */
|
||
|
|
SET_BIT(RCU->APB1EN, RCU_APB1EN_UART2EN_MSK);
|
||
|
|
|
||
|
|
/* Config UART2 GPIO pin */
|
||
|
|
md_gpio_set_pull (GPIOA, MD_GPIO_PIN_3, MD_GPIO_PULL_UP);
|
||
|
|
md_gpio_set_mode (GPIOA, MD_GPIO_PIN_2, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_mode (GPIOA, MD_GPIO_PIN_3, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_function0_7 (GPIOA, MD_GPIO_PIN_2, MD_GPIO_AF2);
|
||
|
|
md_gpio_set_function0_7 (GPIOA, MD_GPIO_PIN_3, MD_GPIO_AF2);
|
||
|
|
#endif /* uart1 gpio init */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART3
|
||
|
|
/* Open UART3 clock */
|
||
|
|
SET_BIT(RCU->APB1EN, RCU_APB1EN_UART3EN_MSK);
|
||
|
|
|
||
|
|
/* Config UART3 GPIO pin */
|
||
|
|
md_gpio_set_pull (GPIOC, MD_GPIO_PIN_7, MD_GPIO_PULL_UP);
|
||
|
|
md_gpio_set_mode (GPIOC, MD_GPIO_PIN_6, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_mode (GPIOC, MD_GPIO_PIN_7, MD_GPIO_MODE_FUNCTION);
|
||
|
|
md_gpio_set_function0_7 (GPIOC, MD_GPIO_PIN_6, MD_GPIO_AF2);
|
||
|
|
md_gpio_set_function0_7 (GPIOC, MD_GPIO_PIN_7, MD_GPIO_AF2);
|
||
|
|
#endif /* uart3 gpio init */
|
||
|
|
|
||
|
|
if (cfg->bit_order == BIT_ORDER_MSB)
|
||
|
|
{
|
||
|
|
md_uart_set_lcon_msb(uart->huart, MD_UART_LCON_MSB_FIRST);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
md_uart_set_lcon_msb(uart->huart, MD_UART_LCON_LSB_FIRST);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (cfg->invert == NRZ_INVERTED)
|
||
|
|
{
|
||
|
|
md_uart_enable_lcon_datainv(uart->huart);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
md_uart_disable_lcon_datainv(uart->huart);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Config buadrate */
|
||
|
|
md_uart_set_brr(uart->huart, SystemCoreClock/cfg->baud_rate);
|
||
|
|
/* Config data width */
|
||
|
|
md_uart_set_lcon_dls(uart->huart, 8-cfg->data_bits);
|
||
|
|
/* Config stop bits */
|
||
|
|
md_uart_set_lcon_stop(uart->huart, cfg->stop_bits);
|
||
|
|
/* Config parity */
|
||
|
|
if (cfg->parity > PARITY_NONE)
|
||
|
|
{
|
||
|
|
md_uart_set_lcon_ps(uart->huart, cfg->parity-1);
|
||
|
|
md_uart_enable_lcon_pe(uart->huart);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
md_uart_disable_lcon_pe(uart->huart);
|
||
|
|
|
||
|
|
/* enable rx int */
|
||
|
|
md_uart_set_fcon_rxth(uart->huart, MD_UART_FCON_RXTH_1);
|
||
|
|
md_uart_enable_ier_rfth(uart->huart);
|
||
|
|
md_uart_enable_lcon_txen(uart->huart);
|
||
|
|
md_uart_enable_lcon_rxen(uart->huart);
|
||
|
|
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t es32f0x_control(struct rt_serial_device *serial, int cmd, void *arg)
|
||
|
|
{
|
||
|
|
struct es32_uart *uart;
|
||
|
|
RT_ASSERT(serial != RT_NULL);
|
||
|
|
|
||
|
|
uart = (struct es32_uart *)serial->parent.user_data;
|
||
|
|
switch (cmd)
|
||
|
|
{
|
||
|
|
case RT_DEVICE_CTRL_CLR_INT:
|
||
|
|
/* disable rx irq */
|
||
|
|
NVIC_DisableIRQ(uart->irq);
|
||
|
|
/* disable interrupt */
|
||
|
|
md_uart_disable_idr_rfth(uart->huart);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case RT_DEVICE_CTRL_SET_INT:
|
||
|
|
/* enable rx irq */
|
||
|
|
NVIC_EnableIRQ(uart->irq);
|
||
|
|
/* enable interrupt */
|
||
|
|
md_uart_enable_ier_rfth(uart->huart);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int es32f0x_putc(struct rt_serial_device *serial, char c)
|
||
|
|
{
|
||
|
|
struct es32_uart *uart;
|
||
|
|
RT_ASSERT(serial != RT_NULL);
|
||
|
|
uart = (struct es32_uart *)serial->parent.user_data;
|
||
|
|
|
||
|
|
while (uart->huart->STAT & UART_STAT_TSBUSY_MSK);
|
||
|
|
WRITE_REG(uart->huart->TXBUF, c);
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int es32f0x_getc(struct rt_serial_device *serial)
|
||
|
|
{
|
||
|
|
int ch = -1;
|
||
|
|
struct es32_uart *uart;
|
||
|
|
|
||
|
|
RT_ASSERT(serial != RT_NULL);
|
||
|
|
uart = (struct es32_uart *)serial->parent.user_data;
|
||
|
|
|
||
|
|
if (uart->huart->STAT & UART_STAT_RFTH_MSK)
|
||
|
|
{
|
||
|
|
ch = (uint8_t)(uart->huart->RXBUF & 0xFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
return ch;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct rt_uart_ops es32f0x_uart_ops =
|
||
|
|
{
|
||
|
|
es32f0x_configure,
|
||
|
|
es32f0x_control,
|
||
|
|
es32f0x_putc,
|
||
|
|
es32f0x_getc,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART1
|
||
|
|
/* UART1 device driver structure */
|
||
|
|
struct es32_uart uart1 =
|
||
|
|
{
|
||
|
|
UART1,
|
||
|
|
UART1_IRQn
|
||
|
|
};
|
||
|
|
|
||
|
|
struct rt_serial_device serial1;
|
||
|
|
|
||
|
|
void UART1_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
if (md_uart_is_active_flag_rif_rfth(UART1) == 1)
|
||
|
|
{
|
||
|
|
rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
|
||
|
|
md_uart_clear_flag_rfth(UART1);
|
||
|
|
}
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
#endif /* BSP_USING_UART1 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART2
|
||
|
|
/* UART2 device driver structure */
|
||
|
|
struct es32_uart uart2 =
|
||
|
|
{
|
||
|
|
UART2,
|
||
|
|
UART2_IRQn
|
||
|
|
};
|
||
|
|
|
||
|
|
struct rt_serial_device serial2;
|
||
|
|
|
||
|
|
void UART2_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
if (md_uart_is_active_flag_rif_rfth(UART2) == 1)
|
||
|
|
{
|
||
|
|
rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
|
||
|
|
md_uart_clear_flag_rfth(UART2);
|
||
|
|
}
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
#endif /* BSP_USING_UART2 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART3
|
||
|
|
/* UART3 device driver structure */
|
||
|
|
struct es32_uart uart3 =
|
||
|
|
{
|
||
|
|
UART3,
|
||
|
|
UART3_IRQn
|
||
|
|
};
|
||
|
|
|
||
|
|
struct rt_serial_device serial3;
|
||
|
|
|
||
|
|
void UART3_AES_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
if (md_uart_is_active_flag_rif_rfth(UART3) == 1)
|
||
|
|
{
|
||
|
|
rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
|
||
|
|
md_uart_clear_flag_rfth(UART3);
|
||
|
|
}
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
#endif /* BSP_USING_UART3 */
|
||
|
|
|
||
|
|
int rt_hw_uart_init(void)
|
||
|
|
{
|
||
|
|
struct es32_uart *uart;
|
||
|
|
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART1
|
||
|
|
uart = &uart1;
|
||
|
|
serial1.ops = &es32f0x_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 = &es32f0x_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 = &es32f0x_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 */
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
INIT_BOARD_EXPORT(rt_hw_uart_init);
|
||
|
|
|
||
|
|
#endif
|