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Fix to HID device mode Class driver, so that new reports are compared against the old, and updated reports made within the idle period are sent immediately to the host.

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This commit is contained in:
Dean Camera 2009-07-30 14:35:42 +00:00
parent ec079c71d8
commit 72932e2780
9 changed files with 30 additions and 32 deletions
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25
LUFA/Drivers/USB/Class/Device/HID.c
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@ -51,7 +51,7 @@ void HID_Device_ProcessControlPacket(USB_ClassInfo_HID_Device_t* const HIDInterf
{
Endpoint_ClearSETUP();
uint8_t ReportINData[HIDInterfaceInfo->Config.ReportINBufferSize];
uint8_t ReportINData[HID_MAX_REPORT_SIZE];
uint16_t ReportINSize;
uint8_t ReportID = (USB_ControlRequest.wValue & 0xFF);
@ -150,27 +150,32 @@ bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* const HIDInterfac
void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
{
static uint8_t PreviousReportINData[HID_MAX_REPORT_SIZE];
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpointNumber);
if (Endpoint_IsReadWriteAllowed() &&
!(HIDInterfaceInfo->State.IdleCount && HIDInterfaceInfo->State.IdleMSRemaining))
if (Endpoint_IsReadWriteAllowed())
{
if (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining))
HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;
uint8_t ReportINData[HIDInterfaceInfo->Config.ReportINBufferSize];
uint16_t ReportINSize;
uint8_t ReportINData[HID_MAX_REPORT_SIZE];
uint8_t ReportID = 0;
uint16_t ReportINSize;
memset(ReportINData, 0, sizeof(ReportINData));
ReportINSize = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportINData);
ReportINSize = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportINData);
if (ReportINSize)
bool StatesChanged = (memcmp(ReportINData, PreviousReportINData, ReportINSize) != 0);
bool IdlePeriodElapsed = (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining));
memcpy(PreviousReportINData, ReportINData, ReportINSize);
if (ReportINSize && (StatesChanged || IdlePeriodElapsed))
{
HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;
if (ReportID)
Endpoint_Write_Stream_LE(&ReportID, sizeof(ReportID), NO_STREAM_CALLBACK);