Make sure we send out a all zero report once when the a mouse report has been sent

This commit is contained in:
Kristian Sloth Lauszus
2018-06-07 02:10:27 +02:00
parent 1a0da7971a
commit b284e9fa58

View File

@@ -29,16 +29,20 @@ usb_status_t usbMouseAction(void)
usb_status_t UsbMouseCallback(class_handle_t handle, uint32_t event, void *param) usb_status_t UsbMouseCallback(class_handle_t handle, uint32_t event, void *param)
{ {
static bool usbMouseActionActive = false;
usb_status_t error = kStatus_USB_Error; usb_status_t error = kStatus_USB_Error;
switch (event) { switch (event) {
case kUSB_DeviceHidEventSendResponse: case kUSB_DeviceHidEventSendResponse:
if (UsbCompositeDevice.attach) { if (UsbCompositeDevice.attach) {
// Send out the mouse report continuously if the report is not zeros // Send out the report continuously if the report is not zeros
usb_mouse_report_t *mouseReport = getInactiveUsbMouseReport(); usb_mouse_report_t *report = getInactiveUsbMouseReport();
uint8_t zeroBuf[sizeof(usb_mouse_report_t)] = { 0 }; uint8_t zeroBuf[sizeof(usb_mouse_report_t)] = { 0 };
if (memcmp(mouseReport, zeroBuf, sizeof(usb_mouse_report_t)) != 0) bool reportChanged = memcmp(report, zeroBuf, sizeof(usb_mouse_report_t)) != 0;
if (usbMouseActionActive || reportChanged) {
usbMouseActionActive = reportChanged; // Used to send out all zeros once after a report has been sent
return usbMouseAction(); return usbMouseAction();
}
} }
case kUSB_DeviceHidEventGetReport: case kUSB_DeviceHidEventGetReport:
case kUSB_DeviceHidEventSetReport: case kUSB_DeviceHidEventSetReport: