suppress hid events from host when device is disconnected

hyperx_elite2.c

@@ -360,6 +360,7 @@ void startADC() {
 
 // forward HID report after processing
 bool forward_report(uint8_t instance, uint8_t const* report, uint16_t len) {
+	if (device_state == DEVICE_ACTIVE ) {
 		if (instance == 0x01 && report[0] == 0x03 && report[1] == 0xE2) {
 			mute = !mute;
 		}
@@ -367,6 +368,9 @@ bool forward_report(uint8_t instance, uint8_t const* report, uint16_t len) {
 		return tud_hid_n_report(instance, 0, report, len);
 	}
 
+	return true;
+}
+
 // save RGB configuration to flash
 void save_rgb_config(void) {
 	// set save signature and number of bytes to be written into config

usb_device.c

@@ -75,19 +75,17 @@ void usb_device_main(void) {
 	while (true) {
 		switch ( device_state ) {
 			case DEVICE_ACTIVE:
+				if (!tud_mounted()) {
+					device_state = DEVICE_INACTIVE;
+				}
 				break;
 			case DEVICE_INACTIVE:
 				break;
 			case DEVICE_RESTART:
 				if (tud_disconnect()) {
-					sleep_ms(10);
-					if (tud_connect()) {
-						if ( host_state == HOST_INACTIVE ) {
 					device_state = DEVICE_INACTIVE;
-						} else {
-							device_state = DEVICE_ACTIVE;
-						}
-					}
+					sleep_ms(10);
+					tud_connect();
 				}
 				break;
 			default:
@@ -214,7 +212,6 @@ uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
 	return NULL;
 }
 
-
 // Invoked when received SET_REPORT control request or
 // received data on OUT endpoint ( Report ID = 0, Type = 0 )
 void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize) {
@@ -238,6 +235,11 @@ uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_t
 	return 0;
 }
 
+// Invoked when device is mounted
+void tud_mount_cb(void) {
+	device_state = DEVICE_ACTIVE;
+}
+
 // print message to CDC in raw hex
 void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) {
 	(void) msg;