1 files changed, 51 insertions, 0 deletions

diff --git a/quantum/usb_device_state.c b/quantum/usb_device_state.c
new file mode 100644
index 000000000..5ccd309ec
--- /dev/null
+++ b/quantum/usb_device_state.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2021 Andrei Purdea <andrei@purdea.ro>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "usb_device_state.h"
+
+enum usb_device_state usb_device_state = USB_DEVICE_STATE_NO_INIT;
+
+__attribute__((weak)) void notify_usb_device_state_change_kb(enum usb_device_state usb_device_state) { notify_usb_device_state_change_user(usb_device_state); }
+
+__attribute__((weak)) void notify_usb_device_state_change_user(enum usb_device_state usb_device_state) {}
+
+static void notify_usb_device_state_change(enum usb_device_state usb_device_state) { notify_usb_device_state_change_kb(usb_device_state); }
+
+void usb_device_state_set_configuration(bool isConfigured, uint8_t configurationNumber) {
+    usb_device_state = isConfigured ? USB_DEVICE_STATE_CONFIGURED : USB_DEVICE_STATE_INIT;
+    notify_usb_device_state_change(usb_device_state);
+}
+
+void usb_device_state_set_suspend(bool isConfigured, uint8_t configurationNumber) {
+    usb_device_state = USB_DEVICE_STATE_SUSPEND;
+    notify_usb_device_state_change(usb_device_state);
+}
+
+void usb_device_state_set_resume(bool isConfigured, uint8_t configurationNumber) {
+    usb_device_state = isConfigured ? USB_DEVICE_STATE_CONFIGURED : USB_DEVICE_STATE_INIT;
+    notify_usb_device_state_change(usb_device_state);
+}
+
+void usb_device_state_set_reset(void) {
+    usb_device_state = USB_DEVICE_STATE_INIT;
+    notify_usb_device_state_change(usb_device_state);
+}
+
+void usb_device_state_init(void) {
+    usb_device_state = USB_DEVICE_STATE_INIT;
+    notify_usb_device_state_change(usb_device_state);
+}