Merge pull request #5182 from NU-LL/tkm32f499

1 files changed, 254 insertions, 0 deletions

diff --git a/bsp/tkm32F499/drivers/drv_uart.c b/bsp/tkm32F499/drivers/drv_uart.c
new file mode 100644
index 0000000000..336367d9be
--- /dev/null
+++ b/bsp/tkm32F499/drivers/drv_uart.c
@@ -0,0 +1,254 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-10-02     spaceman           first version
+ */
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <board.h>
+#include "drv_uart.h"
+
+#ifdef RT_USING_SERIAL
+
+//#define DRV_DEBUG
+#define LOG_TAG             "drv.uart"
+#include <drv_log.h>
+
+#if !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3) && \
+    !defined(BSP_USING_UART4)
+#error "Please define at least one BSP_USING_UARTx"
+/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
+#endif
+
+
+/* UART1 */
+#define UART1_GPIO_TX           GPIO_Pin_9
+#define UART1_GPIO_RX           GPIO_Pin_10
+#define UART1_GPIO_AF           GPIO_AF_UART_1
+#define UART1_GPIO              GPIOA
+
+/* UART2 */
+#define UART2_GPIO_TX           GPIO_Pin_2
+#define UART2_GPIO_RX           GPIO_Pin_3
+#define UART2_GPIO_AF           GPIO_AF_UART_2345
+#define UART2_GPIO              GPIOA
+
+
+static rt_err_t tkm32_uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+    struct tkm32_uart *uart;
+    UART_InitTypeDef UART_InitStructure;
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+    uart = (struct tkm32_uart *)serial->parent.user_data;
+    UART_InitStructure.UART_BaudRate = cfg->baud_rate;
+    if (cfg->data_bits == DATA_BITS_8)
+        UART_InitStructure.UART_WordLength = UART_WordLength_8b;
+    if (cfg->stop_bits == STOP_BITS_1)
+        UART_InitStructure.UART_StopBits = UART_StopBits_1;
+    else if (cfg->stop_bits == STOP_BITS_2)
+        UART_InitStructure.UART_StopBits = UART_StopBits_2;
+    UART_InitStructure.UART_Parity = UART_Parity_No;
+    UART_InitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_None;
+    UART_InitStructure.UART_Mode = UART_Mode_Rx | UART_Mode_Tx;
+    UART_Init(uart->uart, &UART_InitStructure);
+    /* Enable UART */
+    UART_Cmd(uart->uart, ENABLE);
+    return RT_EOK;
+}
+
+static rt_err_t tkm32_uart_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    struct tkm32_uart *uart;
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct tkm32_uart *)serial->parent.user_data;
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_CLR_INT:
+        /* disable rx irq */
+        NVIC_DisableIRQ(uart->irq);
+        UART_ITConfig(uart->uart, UART_IT_RXIEN, DISABLE);
+        break;
+    case RT_DEVICE_CTRL_SET_INT:
+        /* enable rx irq */
+        NVIC_EnableIRQ(uart->irq);
+        /* enable interrupt */
+        UART_ITConfig(uart->uart, UART_IT_RXIEN, ENABLE);
+        break;
+    }
+    return RT_EOK;
+}
+
+static int tkm32_uart_putc(struct rt_serial_device *serial, char c)
+{
+    struct tkm32_uart *uart;
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct tkm32_uart *)serial->parent.user_data;
+    while ((uart->uart->CSR & UART_IT_TXIEN) == 0);
+    uart->uart->TDR = (c & (uint16_t)0x00FF);
+    return 1;
+}
+
+static int tkm32_uart_getc(struct rt_serial_device *serial)
+{
+    int ch;
+    struct tkm32_uart *uart;
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct tkm32_uart *)serial->parent.user_data;
+    ch = -1;
+    if (uart->uart->CSR & UART_FLAG_RXAVL)
+    {
+        ch = uart->uart->RDR & 0xff;
+    }
+    return ch;
+}
+
+static const struct rt_uart_ops tkm32_uart_ops =
+{
+    tkm32_uart_configure,
+    tkm32_uart_control,
+    tkm32_uart_putc,
+    tkm32_uart_getc,
+};
+
+#if defined(BSP_USING_UART1)
+/* UART1 device driver structure */
+static struct tkm32_uart uart1;
+struct rt_serial_device serial1;
+void UART1_IRQHandler(void)
+{
+    struct tkm32_uart *uart;
+    uart = &uart1;
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if (UART_GetITStatus(uart->uart, UART_IT_RXIEN) != RESET)
+    {
+        UART_ClearITPendingBit(uart->uart, UART_IT_RXIEN);
+        rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
+    }
+    if (UART_GetITStatus(uart->uart, UART_IT_TXIEN) != RESET)
+    {
+        /* clear interrupt */
+        UART_ClearITPendingBit(uart->uart, UART_IT_TXIEN);
+    }
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* BSP_USING_UART1 */
+
+#if defined(BSP_USING_UART2)
+/* UART2 device driver structure */
+static struct tkm32_uart uart2;
+struct rt_serial_device serial2;
+void UART2_IRQHandler(void)
+{
+    struct tkm32_uart *uart;
+    uart = &uart2;
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if (UART_GetITStatus(uart->uart, UART_IT_RXIEN) != RESET)
+    {
+        UART_ClearITPendingBit(uart->uart, UART_IT_RXIEN);
+        rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
+    }
+    if (UART_GetITStatus(uart->uart, UART_IT_TXIEN) != RESET)
+    {
+        /* clear interrupt */
+        UART_ClearITPendingBit(uart->uart, UART_IT_TXIEN);
+    }
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* BSP_USING_UART2 */
+
+#ifdef BSP_USING_UART1
+static void UART1PINconfigStepA(void)
+{
+    /* Enable UART clock */
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_UART1, ENABLE);
+}
+
+static void UART1PINconfigStepB(void)
+{
+
+    GPIO_InitTypeDef GPIO_InitStructure;
+    /* Configure USART Rx/tx PIN */
+    GPIO_InitStructure.GPIO_Pin = UART1_GPIO_TX;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
+    GPIO_InitStructure.GPIO_Pin = UART1_GPIO_RX;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+    GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
+    GPIO_PinAFConfig(UART1_GPIO, UART1_GPIO_TX | UART1_GPIO_RX, UART1_GPIO_AF);
+    UART_ClearITPendingBit(UART1, 0xFF);
+}
+#endif
+
+#ifdef BSP_USING_UART2
+static void UART2PINconfigStepA(void)
+{
+    /* Enable UART clock */
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART2, ENABLE);
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
+}
+
+static void UART2PINconfigStepB(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure;
+    /* Configure USART Rx/tx PIN */
+    GPIO_InitStructure.GPIO_Pin = UART2_GPIO_TX;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
+    GPIO_InitStructure.GPIO_Pin = UART2_GPIO_RX;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+    GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
+    GPIO_PinAFConfig(UART2_GPIO, UART2_GPIO_TX | UART2_GPIO_RX, UART2_GPIO_AF);
+    UART_ClearITPendingBit(UART2, 0xFF);
+}
+#endif
+
+int rt_hw_uart_init(void)
+{
+    struct tkm32_uart *uart;
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+#ifdef BSP_USING_UART1
+    UART1PINconfigStepA();
+    uart = &uart1;
+    uart->uart = UART1;
+    uart->irq = UART1_IRQn;
+    config.baud_rate = BAUD_RATE_115200;
+    serial1.ops    = &tkm32_uart_ops;
+    serial1.config = config;
+    /* register UART1 device */
+    rt_hw_serial_register(&serial1, "uart1",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_INT_TX,
+                          uart);
+    UART1PINconfigStepB();
+#endif /* BSP_USING_UART1 */
+
+#ifdef BSP_USING_UART2
+    UART2PINconfigStepA();
+    uart = &uart2;
+    uart->uart = UART2;
+    uart->irq = UART2_IRQn;
+    config.baud_rate = BAUD_RATE_115200;
+    serial2.ops    = &tkm32_uart_ops;
+    serial2.config = config;
+    /* register UART2 device */
+    rt_hw_serial_register(&serial2, "uart2",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_INT_TX,
+                          uart);
+    UART2PINconfigStepB();
+#endif /* BSP_USING_UART2 */
+    return 0;
+}
+INIT_BOARD_EXPORT(rt_hw_uart_init);
+
+#endif /* RT_USING_SERIAL */