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Make sure we do not try to send another report before the old one has finished sending

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This commit is contained in:
Kristian Sloth Lauszus
2018-06-23 17:33:20 +02:00
parent 14eb9c6ec0
commit 724378cf6c
5 changed files with 60 additions and 25 deletions
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17
right/src/usb_interfaces/usb_interface_system_keyboard.c
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@@ -3,6 +3,7 @@
uint32_t UsbSystemKeyboardActionCounter;
static usb_system_keyboard_report_t usbSystemKeyboardReports[2];
usb_system_keyboard_report_t* ActiveUsbSystemKeyboardReport = usbSystemKeyboardReports;
static volatile bool sendUsbSystemKeyboardReportCompleted = true;
usb_system_keyboard_report_t* GetInactiveUsbSystemKeyboardReport()
{
@@ -21,12 +22,17 @@ void ResetActiveUsbSystemKeyboardReport(void)
usb_status_t UsbSystemKeyboardAction(void)
{
if (!sendUsbSystemKeyboardReportCompleted)
return kStatus_USB_Busy; // The previous report has not been sent yet
UsbSystemKeyboardActionCounter++;
SwitchActiveUsbSystemKeyboardReport(); // Switch the active report
usb_status_t usb_status = USB_DeviceHidSend(
UsbCompositeDevice.systemKeyboardHandle, USB_SYSTEM_KEYBOARD_ENDPOINT_INDEX,
(uint8_t*)ActiveUsbSystemKeyboardReport, USB_SYSTEM_KEYBOARD_REPORT_LENGTH);
if (usb_status == kStatus_USB_Success)
SwitchActiveUsbSystemKeyboardReport(); // Switch the active report if the data was sent successfully
(uint8_t*)GetInactiveUsbSystemKeyboardReport(), USB_SYSTEM_KEYBOARD_REPORT_LENGTH);
if (usb_status == kStatus_USB_Success) {
sendUsbSystemKeyboardReportCompleted = false;
}
return usb_status;
}
@@ -35,7 +41,12 @@ usb_status_t UsbSystemKeyboardCallback(class_handle_t handle, uint32_t event, vo
usb_status_t error = kStatus_USB_Error;
switch (event) {
// This report is received when the report has been sent
case kUSB_DeviceHidEventSendResponse:
sendUsbSystemKeyboardReportCompleted = true;
error = kStatus_USB_Success;
break;
case kUSB_DeviceHidEventRecvResponse:
case kUSB_DeviceHidEventGetReport:
case kUSB_DeviceHidEventSetReport:
case kUSB_DeviceHidEventRequestReportBuffer: