[serial]增加at32的serial_v2驱动

bsp/at32/libraries/rt_drivers/SConscript

@@ -16,8 +16,11 @@ if GetDepend(['RT_USING_PIN']):
 if GetDepend(['RT_USING_WDT']):
     src += ['drv_wdt.c']
 
-if GetDepend(['BSP_USING_SERIAL']):
-    src += ['drv_usart.c']
+if GetDepend(['RT_USING_SERIAL']):
+    if GetDepend(['RT_USING_SERIAL_V2']):
+        src += ['drv_usart_v2.c']
+    else:
+        src += ['drv_usart.c']
 
 if GetDepend(['BSP_USING_PWM']):
     src += ['drv_pwm.c']

bsp/at32/libraries/rt_drivers/drv_usart_v2.c

@@ -0,0 +1,447 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-23     Jonas        first version
+ */
+
+#include "drv_usart_v2.h"
+
+#ifdef RT_USING_SERIAL_V2
+#if !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && \
+    !defined(BSP_USING_UART3) && !defined(BSP_USING_UART4) && \
+    !defined(BSP_USING_UART5) && !defined(BSP_USING_UART6) && \
+    !defined(BSP_USING_UART7) && !defined(BSP_USING_UART8)
+    #error "Please define at least one BSP_USING_UARTx"
+#endif
+
+enum
+{
+#ifdef BSP_USING_UART1
+    UART1_INDEX,
+#endif
+#ifdef BSP_USING_UART2
+    UART2_INDEX,
+#endif
+#ifdef BSP_USING_UART3
+    UART3_INDEX,
+#endif
+#ifdef BSP_USING_UART4
+    UART4_INDEX,
+#endif
+#ifdef BSP_USING_UART5
+    UART5_INDEX,
+#endif
+#ifdef BSP_USING_UART6
+    UART6_INDEX,
+#endif
+#ifdef BSP_USING_UART7
+    UART7_INDEX,
+#endif
+#ifdef BSP_USING_UART8
+    UART8_INDEX,
+#endif
+};
+
+static struct at32_usart usart_config[] =
+{
+#ifdef BSP_USING_UART1
+    {
+        "uart1",
+        USART1,
+        USART1_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART2
+    {
+        "uart2",
+        USART2,
+        USART2_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART3
+    {
+        "uart3",
+        USART3,
+        USART3_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART4
+    {
+        "uart4",
+        UART4,
+        UART4_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART5
+    {
+        "uart5",
+        UART5,
+        UART5_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART6
+    {
+        "uart6",
+        USART6,
+        USART6_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART7
+    {
+        "uart7",
+        UART7,
+        UART7_IRQn,
+    },
+#endif
+#ifdef BSP_USING_UART8
+    {
+        "uart8",
+        UART8,
+        UART8_IRQn,
+    },
+#endif
+};
+
+static rt_err_t at32_configure(struct rt_serial_device *serial,
+                               struct serial_configure *cfg)
+{
+    struct at32_usart *usart_instance = (struct at32_usart *) serial->parent.user_data;
+    usart_data_bit_num_type data_bit;
+    usart_stop_bit_num_type stop_bit;
+    usart_parity_selection_type parity_mode;
+
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+
+    RT_ASSERT(usart_instance != RT_NULL);
+
+    at32_msp_usart_init((void *)usart_instance->usart_x);
+
+    usart_receiver_enable(usart_instance->usart_x, TRUE);
+    usart_transmitter_enable(usart_instance->usart_x, TRUE);
+
+    usart_hardware_flow_control_set(usart_instance->usart_x, USART_HARDWARE_FLOW_NONE);
+
+    switch (cfg->data_bits)
+    {
+    case DATA_BITS_8:
+        data_bit = USART_DATA_8BITS;
+        break;
+    case DATA_BITS_9:
+        data_bit = USART_DATA_9BITS;
+        break;
+    default:
+        data_bit = USART_DATA_8BITS;
+        break;
+    }
+
+    switch (cfg->stop_bits)
+    {
+    case STOP_BITS_1:
+        stop_bit = USART_STOP_1_BIT;
+        break;
+    case STOP_BITS_2:
+        stop_bit = USART_STOP_2_BIT;
+        break;
+    default:
+        stop_bit = USART_STOP_1_BIT;
+        break;
+    }
+
+    switch (cfg->parity)
+    {
+    case PARITY_NONE:
+        parity_mode = USART_PARITY_NONE;
+        break;
+    case PARITY_ODD:
+        parity_mode = USART_PARITY_ODD;
+        break;
+    case PARITY_EVEN:
+        parity_mode = USART_PARITY_EVEN;
+        break;
+    default:
+        parity_mode = USART_PARITY_NONE;
+        break;
+    }
+    usart_parity_selection_config(usart_instance->usart_x, parity_mode);
+    usart_init(usart_instance->usart_x, cfg->baud_rate, data_bit, stop_bit);
+    usart_enable(usart_instance->usart_x, TRUE);
+
+    return RT_EOK;
+}
+
+static rt_err_t at32_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    struct at32_usart *usart;
+
+    rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
+
+    RT_ASSERT(serial != RT_NULL);
+    usart = (struct at32_usart *) serial->parent.user_data;
+    RT_ASSERT(usart != RT_NULL);
+
+    if (ctrl_arg & (RT_DEVICE_FLAG_RX_BLOCKING | RT_DEVICE_FLAG_RX_NON_BLOCKING))
+    {
+        ctrl_arg = RT_DEVICE_FLAG_INT_RX;
+    }
+    else if (ctrl_arg & (RT_DEVICE_FLAG_TX_BLOCKING | RT_DEVICE_FLAG_TX_NON_BLOCKING))
+    {
+        ctrl_arg = RT_DEVICE_FLAG_INT_TX;
+    }
+
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_CLR_INT:
+        nvic_irq_disable(usart->irqn);
+        if (ctrl_arg == RT_DEVICE_FLAG_INT_RX)
+            usart_interrupt_enable(usart->usart_x, USART_RDBF_INT, FALSE);
+        else if (ctrl_arg == RT_DEVICE_FLAG_INT_TX)
+            usart_interrupt_enable(usart->usart_x, USART_TDBE_INT, FALSE);
+        break;
+    case RT_DEVICE_CTRL_SET_INT:
+        nvic_irq_enable(usart->irqn, 4, 1);
+        if (ctrl_arg == RT_DEVICE_FLAG_INT_RX)
+            usart_interrupt_enable(usart->usart_x, USART_RDBF_INT, TRUE);
+        else if (ctrl_arg == RT_DEVICE_FLAG_INT_TX)
+            usart_interrupt_enable(usart->usart_x, USART_TDBE_INT, TRUE);
+        break;
+    case RT_DEVICE_CTRL_CONFIG:
+        at32_control(serial, RT_DEVICE_CTRL_SET_INT, (void *)ctrl_arg);
+        break;
+    case RT_DEVICE_CHECK_OPTMODE:
+    {
+        return RT_SERIAL_TX_BLOCKING_BUFFER;
+    }
+    case RT_DEVICE_CTRL_CLOSE:
+        usart_reset(usart->usart_x);
+        break;
+    }
+
+    return RT_EOK;
+}
+
+static int at32_putc(struct rt_serial_device *serial, char ch)
+{
+    struct at32_usart *usart;
+
+    RT_ASSERT(serial != RT_NULL);
+    usart = (struct at32_usart *) serial->parent.user_data;
+    RT_ASSERT(usart != RT_NULL);
+
+    usart_data_transmit(usart->usart_x, (uint8_t)ch);
+    while (usart_flag_get(usart->usart_x, USART_TDC_FLAG) == RESET);
+
+    return 1;
+}
+
+static int at32_getc(struct rt_serial_device *serial)
+{
+    int ch;
+    struct at32_usart *usart;
+
+    RT_ASSERT(serial != RT_NULL);
+    usart = (struct at32_usart *) serial->parent.user_data;
+    RT_ASSERT(usart != RT_NULL);
+
+    ch = -1;
+    if (usart_flag_get(usart->usart_x, USART_RDBF_FLAG) != RESET)
+    {
+        ch = usart_data_receive(usart->usart_x) & 0xff;
+    }
+
+    return ch;
+}
+
+static rt_size_t at32_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, rt_uint32_t tx_flag)
+{
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(buf != RT_NULL);
+
+    at32_control(serial, RT_DEVICE_CTRL_SET_INT, (void *)tx_flag);
+
+    return size;
+}
+
+static const struct rt_uart_ops at32_usart_ops =
+{
+    at32_configure,
+    at32_control,
+    at32_putc,
+    at32_getc,
+    at32_transmit
+};
+
+static void usart_isr(struct rt_serial_device *serial)
+{
+    struct at32_usart *usart_instance;
+
+    RT_ASSERT(serial != RT_NULL);
+
+    usart_instance = (struct at32_usart *) serial->parent.user_data;
+    RT_ASSERT(usart_instance != RT_NULL);
+
+    if (usart_flag_get(usart_instance->usart_x, USART_RDBF_FLAG) != RESET)
+    {
+        struct rt_serial_rx_fifo *rx_fifo;
+        rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
+        RT_ASSERT(rx_fifo != RT_NULL);
+
+        rt_ringbuffer_putchar(&(rx_fifo->rb), usart_data_receive(usart_instance->usart_x));
+
+        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
+    }
+    else
+    {
+        if ((usart_flag_get(usart_instance->usart_x, USART_TDBE_FLAG) != RESET) && usart_instance->usart_x->ctrl1_bit.tdbeien)
+        {
+            struct rt_serial_tx_fifo *tx_fifo;
+            tx_fifo = (struct rt_serial_tx_fifo *) serial->serial_tx;
+            RT_ASSERT(tx_fifo != RT_NULL);
+
+            rt_uint8_t put_char = 0;
+            if (rt_ringbuffer_getchar(&(tx_fifo->rb), &put_char))
+            {
+                usart_data_transmit(usart_instance->usart_x, put_char);
+            }
+            else
+            {
+                usart_interrupt_enable(usart_instance->usart_x, USART_TDBE_INT, FALSE);
+                usart_interrupt_enable(usart_instance->usart_x, USART_TDC_INT, TRUE);
+            }
+            usart_flag_clear(usart_instance->usart_x, USART_TDBE_FLAG);
+        }
+        else if (usart_flag_get(usart_instance->usart_x, USART_TDC_FLAG) != RESET)
+        {
+
+            usart_interrupt_enable(usart_instance->usart_x, USART_TDC_INT, FALSE);
+
+            rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
+
+            usart_flag_clear(usart_instance->usart_x, USART_TDC_FLAG);
+        }
+        if (usart_flag_get(usart_instance->usart_x, USART_CTSCF_FLAG) != RESET)
+        {
+            usart_flag_clear(usart_instance->usart_x, USART_CTSCF_FLAG);
+        }
+
+        if (usart_flag_get(usart_instance->usart_x, USART_BFF_FLAG) != RESET)
+        {
+            usart_flag_clear(usart_instance->usart_x, USART_BFF_FLAG);
+        }
+
+    }
+}
+
+#ifdef BSP_USING_UART1
+void USART1_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART1_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART2
+void USART2_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART2_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART3
+void USART3_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART3_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART4
+void UART4_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART4_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART5
+void UART5_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART5_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART6
+void USART6_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART6_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART7
+void UART7_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART7_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_UART8
+void UART8_IRQHandler(void)
+{
+    rt_interrupt_enter();
+
+    usart_isr(&usart_config[UART8_INDEX].serial);
+
+    rt_interrupt_leave();
+}
+#endif
+
+int rt_hw_usart_init(void)
+{
+    rt_size_t obj_num;
+    int index;
+
+    obj_num = sizeof(usart_config) / sizeof(struct at32_usart);
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+    rt_err_t result = 0;
+
+    for (index = 0; index < obj_num; index++)
+    {
+        usart_config[index].serial.config = config;
+        usart_config[index].serial.ops = &at32_usart_ops;
+
+        /* register uart device */
+        result = rt_hw_serial_register(&usart_config[index].serial,
+                                       usart_config[index].name,
+                                       RT_DEVICE_FLAG_RDWR |
+                                       RT_DEVICE_FLAG_INT_RX |
+                                       RT_DEVICE_FLAG_INT_TX,
+                                       &usart_config[index]);
+        RT_ASSERT(result == RT_EOK);
+    }
+
+    return result;
+}
+
+#endif /* RT_USING_SERIAL_V2 */

bsp/at32/libraries/rt_drivers/drv_usart_v2.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-23     Jonas        first version
+ */
+
+#ifndef __DRV_USART_V2_H__
+#define __DRV_USART_V2_H__
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <drv_common.h>
+
+struct at32_usart
+{
+    char *name;
+    usart_type *usart_x;
+    IRQn_Type irqn;
+    struct rt_serial_device serial;
+};
+
+int rt_hw_usart_init(void);
+
+#endif /* __DRV_USART_V2_H__ */