suppress hid events from host when device is disconnected

This commit is contained in:
2026-05-08 11:40:49 -04:00
parent 9762476e4b
commit 75d8f87b40
2 changed files with 17 additions and 11 deletions
+7 -3
View File
@@ -360,11 +360,15 @@ void startADC() {
// forward HID report after processing // forward HID report after processing
bool forward_report(uint8_t instance, uint8_t const* report, uint16_t len) { bool forward_report(uint8_t instance, uint8_t const* report, uint16_t len) {
if (instance == 0x01 && report[0] == 0x03 && report[1] == 0xE2) { if (device_state == DEVICE_ACTIVE ) {
mute = !mute; if (instance == 0x01 && report[0] == 0x03 && report[1] == 0xE2) {
mute = !mute;
}
return tud_hid_n_report(instance, 0, report, len);
} }
return tud_hid_n_report(instance, 0, report, len); return true;
} }
// save RGB configuration to flash // save RGB configuration to flash
+10 -8
View File
@@ -75,19 +75,17 @@ void usb_device_main(void) {
while (true) { while (true) {
switch ( device_state ) { switch ( device_state ) {
case DEVICE_ACTIVE: case DEVICE_ACTIVE:
if (!tud_mounted()) {
device_state = DEVICE_INACTIVE;
}
break; break;
case DEVICE_INACTIVE: case DEVICE_INACTIVE:
break; break;
case DEVICE_RESTART: case DEVICE_RESTART:
if (tud_disconnect()) { if (tud_disconnect()) {
device_state = DEVICE_INACTIVE;
sleep_ms(10); sleep_ms(10);
if (tud_connect()) { tud_connect();
if ( host_state == HOST_INACTIVE ) {
device_state = DEVICE_INACTIVE;
} else {
device_state = DEVICE_ACTIVE;
}
}
} }
break; break;
default: default:
@@ -214,7 +212,6 @@ uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
return NULL; return NULL;
} }
// Invoked when received SET_REPORT control request or // Invoked when received SET_REPORT control request or
// received data on OUT endpoint ( Report ID = 0, Type = 0 ) // 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) { 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; return 0;
} }
// Invoked when device is mounted
void tud_mount_cb(void) {
device_state = DEVICE_ACTIVE;
}
// print message to CDC in raw hex // print message to CDC in raw hex
void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) { void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) {
(void) msg; (void) msg;