除了显示驱动，其余全部测试通过

2026-08-30 14:13:24 +08:00
commit c0ace98dff
146 changed files with 9476 additions and 0 deletions
@@ -0,0 +1,119 @@
+#include "radar_uart.h"
+
+static struct device *radar_uart_hdl = NULL;//串口操作句柄
+static u8 radar_uart_rx_buf[RADAR_UART_RX_BUF_SIZE]//串口驱动环形缓冲区
+__attribute__((aligned(32)));
+
+/* UART1初始化 PC6 = TX  PC7 = RX */
+UART1_PLATFORM_DATA_BEGIN(radar_uart_data)
+    .baudrate = RADAR_UART_BAUDRATE,
+    .port = PORT_REMAP,
+
+    .tx_pin = IO_PORTC_06,
+    .rx_pin = IO_PORTC_07,
+
+    .output_channel = OUTPUT_CHANNEL3,
+    .input_channel = INPUT_CHANNEL3,
+
+    .max_continue_recv_cnt = RADAR_UART_RX_BUF_SIZE,
+    .idle_sys_clk_cnt = 500000,
+    .clk_src = PLL_48M,
+UART1_PLATFORM_DATA_END();
+
+/* 注册串口设备 */
+REGISTER_DEVICES(radar_uart_devices) = {
+    {
+        RADAR_UART_NAME,
+        &uart_dev_ops,
+        (void *)&radar_uart_data
+    },
+};
+int radar_uart_init(void)
+{
+    int ret;
+
+    if (radar_uart_hdl) {
+        return 0;
+    }
+
+    radar_uart_hdl = dev_open(RADAR_UART_NAME, NULL);
+    if (!radar_uart_hdl) {
+        return -1;
+    }//句柄写入失败跳出返回-1
+
+    ret = dev_ioctl(
+              radar_uart_hdl,
+              UART_SET_CIRCULAR_BUFF_ADDR,//配置驱动缓冲区地址
+              (u32)radar_uart_rx_buf
+          );
+    if (ret) {
+        goto error;
+    }
+
+    ret = dev_ioctl(
+              radar_uart_hdl,
+              UART_SET_CIRCULAR_BUFF_LENTH,//配置驱动缓冲区长度
+              sizeof(radar_uart_rx_buf)
+          );
+    if (ret) {
+        goto error;
+    }
+
+    ret = dev_ioctl(
+              radar_uart_hdl,
+              UART_SET_RECV_BLOCK,//配置为阻塞接收模式
+              1
+          );
+    if (ret) {
+        goto error;
+    }
+
+    ret = dev_ioctl(
+              radar_uart_hdl,
+              UART_SET_RECV_TIMEOUT,//配置接收超时时间
+              RADAR_UART_RX_TIMEOUT_MS
+          );
+    if (ret) {
+        goto error;
+    }
+
+    ret = dev_ioctl(
+              radar_uart_hdl,
+              UART_START,//启动串口
+              0
+          );
+    if (ret) {
+        goto error;
+    }
+
+    return 0;
+//goto error时会跳转至此，释放资源返回ret
+error:
+    dev_close(radar_uart_hdl);
+    radar_uart_hdl = NULL;
+    return ret;
+}
+
+
+int radar_uart_read(u8 *buf, u32 len)//从驱动缓冲区读取数据并存到buf中，len为读取的最大长度
+{
+    if (!radar_uart_hdl || !buf || !len) {
+        return -1;
+    }
+
+    return dev_read(radar_uart_hdl, buf, len);
+}
+
+
+int radar_uart_write(const u8 *data, u32 len)//给雷达写命令，data为写入数据，len为实际写入长度
+{
+    if (!radar_uart_hdl || !data || !len) {
+        return -1;
+    }
+
+    return dev_write(
+               radar_uart_hdl,
+               (void *)data,
+               len
+           );
+}