/** * * @brief Initialize one UART as the console/debug port * * @return 0 if successful, otherwise failed. */ static int uart_console_init(struct device *arg) { ARG_UNUSED(arg); uart_console_dev = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME); #if defined(CONFIG_USB_UART_CONSOLE) && defined(CONFIG_USB_UART_DTR_WAIT) while (1) { u32_t dtr = 0; uart_line_ctrl_get(uart_console_dev, LINE_CTRL_DTR, &dtr); if (dtr) { break; } } k_busy_wait(1000000); #endif uart_console_hook_install(); return 0; }
void main(void) { struct device *dev; u32_t baudrate, dtr = 0; int ret; dev = device_get_binding(CONFIG_CDC_ACM_PORT_NAME); if (!dev) { SYS_LOG_ERR("CDC ACM device not found"); return; } SYS_LOG_DBG("Wait for DTR"); while (1) { uart_line_ctrl_get(dev, LINE_CTRL_DTR, &dtr); if (dtr) break; } uart_dev = dev; SYS_LOG_DBG("DTR set, continue"); #if CONFIG_DCD_DSR /* They are optional, we use them to test the interrupt endpoint */ ret = uart_line_ctrl_set(dev, LINE_CTRL_DCD, 1); if (ret) printk("Failed to set DCD, ret code %d\n", ret); ret = uart_line_ctrl_set(dev, LINE_CTRL_DSR, 1); if (ret) printk("Failed to set DSR, ret code %d\n", ret); /* Wait 1 sec for the host to do all settings */ sys_thread_busy_wait(1000000); #endif ret = uart_line_ctrl_get(dev, LINE_CTRL_BAUD_RATE, &baudrate); if (ret) printk("Failed to get baudrate, ret code %d\n", ret); else printk("Baudrate detected: %d\n", baudrate); SYS_LOG_INF("USB serial initialized"); /* Initialize net_pkt */ net_pkt_init(); /* Initialize RX queue */ init_rx_queue(); /* Initialize TX queue */ init_tx_queue(); /* Initialize ieee802154 device */ if (!init_ieee802154()) { SYS_LOG_ERR("Unable to initialize ieee802154"); return; }; uart_irq_callback_set(dev, interrupt_handler); /* Enable rx interrupts */ uart_irq_rx_enable(dev); /* Enable tx interrupts */ uart_irq_tx_enable(dev); }