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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-02-22 airm2m first version
*/
#include "board.h"
#include "drv_usart_v2.h"
#ifdef RT_USING_SERIAL_V2
//#define DRV_DEBUG
#define DBG_TAG "drv.usart"
#ifdef DRV_DEBUG
#define DBG_LVL DBG_LOG
#else
#define DBG_LVL DBG_INFO
#endif /* DRV_DEBUG */
#include <rtdbg.h>
#if !defined(BSP_USING_UART0) && !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3)
#error "Please define at least one BSP_USING_UARTx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#endif
static struct air_uart_config uart_config[] =
{
#ifdef BSP_USING_UART0
UART0_CONFIG,
#endif
#ifdef BSP_USING_UART1
UART1_CONFIG,
#endif
#ifdef BSP_USING_UART2
UART2_CONFIG,
#endif
#ifdef BSP_USING_UART3
UART3_CONFIG,
#endif
};
enum
{
#ifdef BSP_USING_UART0
UART0_INDEX,
#endif
#ifdef BSP_USING_UART1
UART1_INDEX,
#endif
#ifdef BSP_USING_UART2
UART2_INDEX,
#endif
#ifdef BSP_USING_UART3
UART3_INDEX,
#endif
};
static struct air_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
static void air_uart_get_config(void)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
#ifdef BSP_USING_UART0
uart_obj[UART0_INDEX].serial.config = config;
uart_obj[UART0_INDEX].serial.config.rx_bufsz = BSP_UART0_RX_BUFSIZE;
uart_obj[UART0_INDEX].serial.config.tx_bufsz = BSP_UART0_TX_BUFSIZE;
#endif
#ifdef BSP_USING_UART1
uart_obj[UART1_INDEX].serial.config = config;
uart_obj[UART1_INDEX].serial.config.rx_bufsz = BSP_UART1_RX_BUFSIZE;
uart_obj[UART1_INDEX].serial.config.tx_bufsz = BSP_UART1_TX_BUFSIZE;
#endif
#ifdef BSP_USING_UART2
uart_obj[UART2_INDEX].serial.config = config;
uart_obj[UART2_INDEX].serial.config.rx_bufsz = BSP_UART2_RX_BUFSIZE;
uart_obj[UART2_INDEX].serial.config.tx_bufsz = BSP_UART2_TX_BUFSIZE;
#endif
#ifdef BSP_USING_UART3
uart_obj[UART3_INDEX].serial.config = config;
uart_obj[UART3_INDEX].serial.config.rx_bufsz = BSP_UART3_RX_BUFSIZE;
uart_obj[UART3_INDEX].serial.config.tx_bufsz = BSP_UART3_TX_BUFSIZE;
#endif
}
static int air105_uart_irq(void *pData, void *pParam)
{
rt_uint32_t uartid = (rt_uint32_t)pData;
rt_uint32_t State = (rt_uint32_t)pParam;
uint8_t temp[32];
rt_uint32_t len;
struct rt_serial_device *serial = NULL;
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct air_uart);
for (int i = 0; i < obj_num; i++)
{
if (uart_obj[i].config->id == uartid)
serial = &(uart_obj[i].serial);
}
struct rt_serial_rx_fifo *rx_fifo;
switch (State){
case UART_CB_TX_BUFFER_DONE:
break;
case DMA_CB_DONE:
DMA_ClearStreamFlag(DBG_UART_TX_DMA_STREAM);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
break;
case UART_CB_TX_ALL_DONE:
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
break;
case UART_CB_RX_BUFFER_FULL:
break;
case UART_CB_RX_TIMEOUT:
case UART_CB_RX_NEW:
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
len = Uart_FifoRead(uartid, temp);
if (len)
{
rt_ringbuffer_put(&(rx_fifo->rb), temp, len);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
break;
case UART_CB_ERROR:
break;
case DMA_CB_ERROR:
break;
}
}
static rt_err_t air105_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
rt_uint32_t uart_id = serial->parent.user_data;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
switch (cfg->stop_bits)
{
case STOP_BITS_1:
cfg->stop_bits = UART_STOP_BIT1;
break;
case STOP_BITS_2:
cfg->stop_bits = UART_STOP_BIT2;
break;
default:
cfg->stop_bits = UART_STOP_BIT1_5;
break;
}
Uart_BaseInit(uart_id, cfg->baud_rate, 0, cfg->data_bits, cfg->parity, cfg->stop_bits, air105_uart_irq);
switch (uart_id){
case UART_ID0:
GPIO_Iomux(GPIOA_01, 0);
GPIO_Iomux(GPIOA_00, 0);
break;
case UART_ID1:
GPIO_Iomux(GPIOC_01, 3);
GPIO_Iomux(GPIOC_00, 3);
break;
case UART_ID2:
GPIO_Iomux(GPIOD_13, 0);
GPIO_Iomux(GPIOD_12, 0);
break;
case UART_ID3:
GPIO_Iomux(GPIOE_08, 2);
GPIO_Iomux(GPIOE_09, 2);
break;
default:
break;
}
return RT_EOK;
}
static rt_err_t air105_control(struct rt_serial_device *serial, int cmd, void *arg)
{
rt_uint32_t uart_id = serial->parent.user_data;
rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
RT_ASSERT(serial != RT_NULL);
switch (cmd)
{
/* disable interrupt */
case RT_DEVICE_CTRL_CLR_INT:
Uart_IrqOnOff(uart_id, 0);
if (DBG_UART_ID == uart_id)
{
DMA_StopStream(DBG_UART_TX_DMA_STREAM);
}
break;
case RT_DEVICE_CTRL_SET_INT:
break;
case RT_DEVICE_CTRL_CONFIG:
if (ctrl_arg & (RT_SERIAL_RX_NON_BLOCKING|RT_SERIAL_RX_BLOCKING))
{
Uart_EnableRxIrq(uart_id);
}
Uart_IrqOnOff(uart_id, 1);
break;
case RT_DEVICE_CHECK_OPTMODE:
return RT_SERIAL_TX_BLOCKING_NO_BUFFER;
case RT_DEVICE_CTRL_CLOSE:
Uart_DeInit(uart_id);
switch (uart_id){
case UART_ID0:
GPIO_Iomux(GPIOA_01, 1);
GPIO_Iomux(GPIOA_00, 1);
break;
case UART_ID1:
GPIO_Iomux(GPIOC_01, 1);
GPIO_Iomux(GPIOC_00, 1);
break;
case UART_ID2:
GPIO_Iomux(GPIOD_13, 1);
GPIO_Iomux(GPIOD_12, 1);
break;
case UART_ID3:
GPIO_Iomux(GPIOE_08, 1);
GPIO_Iomux(GPIOE_09, 1);
break;
default:
break;
}
break;
default:
return -RT_EINVAL;
}
return RT_EOK;
}
static int air105_putc(struct rt_serial_device *serial, char c)
{
rt_uint32_t uart_id = serial->parent.user_data;
RT_ASSERT(serial != RT_NULL);
Uart_NoBlockTx(uart_id, c);
return 1;
}
static int air105_getc(struct rt_serial_device *serial)
{
rt_uint32_t uart_id = serial->parent.user_data;
RT_ASSERT(serial != RT_NULL);
uint8_t data;
if (Uart_ReadByte(uart_id, &data) < 0)
{
return -1;
}
else
{
return data;
}
}
static rt_ssize_t air105_transmit(struct rt_serial_device *serial,
rt_uint8_t *buf,
rt_size_t size,
rt_uint32_t tx_flag)
{
rt_uint32_t uart_id = serial->parent.user_data;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(buf != RT_NULL);
if (DBG_UART_ID == uart_id)
{
Uart_BlockTx(uart_id, buf, size);
}
else
{
Uart_BufferTx(uart_id, buf, size);
}
return size;
}
static const struct rt_uart_ops air105_uart_ops =
{
.configure = air105_configure,
.control = air105_control,
.putc = air105_putc,
.getc = air105_getc,
.transmit = air105_transmit
};
int rt_hw_usart_init(void)
{
rt_err_t result = 0;
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct air_uart);
air_uart_get_config();
for (int i = 0; i < obj_num; i++)
{
/* init UART object */
uart_obj[i].config = &uart_config[i];
if (uart_obj[i].config->id == DBG_UART_ID)
uart_obj[i].serial.config.baud_rate = DBG_UART_BR;
uart_obj[i].serial.ops = &air105_uart_ops;
/* register UART device */
result = rt_hw_serial_register(&uart_obj[i].serial,uart_obj[i].config->name,
RT_DEVICE_FLAG_RDWR,
i);
RT_ASSERT(result == RT_EOK);
}
return result;
}
#endif /* RT_USING_SERIAL_V2 */
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