Add KiCad files and USB CDC logging support

main/usb_cdc_log.c

@@ -0,0 +1,98 @@
+#include "usb_cdc_log.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "esp_check.h"
+#include "esp_log.h"
+#include "tinyusb.h"
+#include "tusb_cdc_acm.h"
+
+static const char *TAG = "usb_log";
+
+static bool s_initialized;
+static bool s_host_ready;
+static vprintf_like_t s_prev_vprintf;
+
+static int usb_cdc_vprintf(const char *fmt, va_list args)
+{
+    if (s_host_ready) {
+        char buffer[256];
+        va_list args_copy;
+        va_copy(args_copy, args);
+        int len = vsnprintf(buffer, sizeof(buffer), fmt, args_copy);
+        va_end(args_copy);
+        if (len > 0) {
+            if (len >= (int)sizeof(buffer)) {
+                len = sizeof(buffer) - 1;
+            }
+            if (tinyusb_cdcacm_write_queue(TINYUSB_CDC_ACM_0, (const uint8_t *)buffer, len) == ESP_OK) {
+                tinyusb_cdcacm_write_flush(TINYUSB_CDC_ACM_0, 0);
+            }
+        }
+        return len;
+    }
+
+    if (s_prev_vprintf) {
+        va_list args_copy;
+        va_copy(args_copy, args);
+        int ret = s_prev_vprintf(fmt, args_copy);
+        va_end(args_copy);
+        return ret;
+    }
+    return 0;
+}
+
+static void usb_cdc_line_state_changed_callback(int itf, cdcacm_event_t *event)
+{
+    (void)itf;
+    s_host_ready = event->line_state_changed_data.dtr;
+    if (s_host_ready) {
+        const char banner[] = "\r\nwatch-watch log over USB CDC\r\n";
+        tinyusb_cdcacm_write_queue(TINYUSB_CDC_ACM_0, (const uint8_t *)banner, sizeof(banner) - 1);
+        tinyusb_cdcacm_write_flush(TINYUSB_CDC_ACM_0, 0);
+    }
+}
+
+bool usb_cdc_log_ready(void)
+{
+    return s_host_ready;
+}
+
+esp_err_t usb_cdc_log_init(void)
+{
+    if (s_initialized) {
+        return ESP_OK;
+    }
+
+    const tinyusb_config_t tusb_cfg = {
+        .device_descriptor = NULL,
+        .string_descriptor = NULL,
+        .external_phy = false,
+#if (TUD_OPT_HIGH_SPEED)
+        .fs_configuration_descriptor = NULL,
+        .hs_configuration_descriptor = NULL,
+        .qualifier_descriptor = NULL,
+#else
+        .configuration_descriptor = NULL,
+#endif
+    };
+
+    ESP_RETURN_ON_ERROR(tinyusb_driver_install(&tusb_cfg), TAG, "TinyUSB init failed");
+
+    const tinyusb_config_cdcacm_t acm_cfg = {
+        .usb_dev = TINYUSB_USBDEV_0,
+        .cdc_port = TINYUSB_CDC_ACM_0,
+        .rx_unread_buf_sz = 64,
+        .callback_rx = NULL,
+        .callback_rx_wanted_char = NULL,
+        .callback_line_state_changed = usb_cdc_line_state_changed_callback,
+        .callback_line_coding_changed = NULL,
+    };
+    ESP_RETURN_ON_ERROR(tusb_cdc_acm_init(&acm_cfg), TAG, "CDC init failed");
+
+    s_prev_vprintf = esp_log_set_vprintf(usb_cdc_vprintf);
+    s_initialized = true;
+    ESP_LOGI(TAG, "ESP_LOG перенаправлено в USB CDC");
+    return ESP_OK;
+}