212 lines
6.6 KiB
C
212 lines
6.6 KiB
C
|
/*
|
||
|
LUFA Library
|
||
|
Copyright (C) Dean Camera, 2017.
|
||
|
|
||
|
dean [at] fourwalledcubicle [dot] com
|
||
|
www.lufa-lib.org
|
||
|
*/
|
||
|
|
||
|
/*
|
||
|
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||
|
|
||
|
Permission to use, copy, modify, distribute, and sell this
|
||
|
software and its documentation for any purpose is hereby granted
|
||
|
without fee, provided that the above copyright notice appear in
|
||
|
all copies and that both that the copyright notice and this
|
||
|
permission notice and warranty disclaimer appear in supporting
|
||
|
documentation, and that the name of the author not be used in
|
||
|
advertising or publicity pertaining to distribution of the
|
||
|
software without specific, written prior permission.
|
||
|
|
||
|
The author disclaims all warranties with regard to this
|
||
|
software, including all implied warranties of merchantability
|
||
|
and fitness. In no event shall the author be liable for any
|
||
|
special, indirect or consequential damages or any damages
|
||
|
whatsoever resulting from loss of use, data or profits, whether
|
||
|
in an action of contract, negligence or other tortious action,
|
||
|
arising out of or in connection with the use or performance of
|
||
|
this software.
|
||
|
*/
|
||
|
|
||
|
#define __INCLUDE_FROM_USB_DRIVER
|
||
|
#include "../../Core/USBMode.h"
|
||
|
|
||
|
#if defined(USB_CAN_BE_DEVICE)
|
||
|
|
||
|
#define __INCLUDE_FROM_HID_DRIVER
|
||
|
#define __INCLUDE_FROM_HID_DEVICE_C
|
||
|
#include "HIDClassDevice.h"
|
||
|
|
||
|
void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
|
||
|
{
|
||
|
if (!(Endpoint_IsSETUPReceived()))
|
||
|
return;
|
||
|
|
||
|
if (USB_ControlRequest.wIndex != HIDInterfaceInfo->Config.InterfaceNumber)
|
||
|
return;
|
||
|
|
||
|
switch (USB_ControlRequest.bRequest)
|
||
|
{
|
||
|
case HID_REQ_GetReport:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
uint16_t ReportSize = 0;
|
||
|
uint8_t ReportID = (USB_ControlRequest.wValue & 0xFF);
|
||
|
uint8_t ReportType = (USB_ControlRequest.wValue >> 8) - 1;
|
||
|
uint8_t ReportData[HIDInterfaceInfo->Config.PrevReportINBufferSize];
|
||
|
|
||
|
memset(ReportData, 0, sizeof(ReportData));
|
||
|
|
||
|
CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportType, ReportData, &ReportSize);
|
||
|
|
||
|
if (HIDInterfaceInfo->Config.PrevReportINBuffer != NULL)
|
||
|
{
|
||
|
memcpy(HIDInterfaceInfo->Config.PrevReportINBuffer, ReportData,
|
||
|
HIDInterfaceInfo->Config.PrevReportINBufferSize);
|
||
|
}
|
||
|
|
||
|
Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
|
||
|
|
||
|
Endpoint_ClearSETUP();
|
||
|
|
||
|
if (ReportID)
|
||
|
Endpoint_Write_8(ReportID);
|
||
|
|
||
|
Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
|
||
|
Endpoint_ClearOUT();
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
case HID_REQ_SetReport:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
uint16_t ReportSize = USB_ControlRequest.wLength;
|
||
|
uint8_t ReportID = (USB_ControlRequest.wValue & 0xFF);
|
||
|
uint8_t ReportType = (USB_ControlRequest.wValue >> 8) - 1;
|
||
|
uint8_t ReportData[ReportSize];
|
||
|
|
||
|
Endpoint_ClearSETUP();
|
||
|
Endpoint_Read_Control_Stream_LE(ReportData, ReportSize);
|
||
|
Endpoint_ClearIN();
|
||
|
|
||
|
CALLBACK_HID_Device_ProcessHIDReport(HIDInterfaceInfo, ReportID, ReportType,
|
||
|
&ReportData[ReportID ? 1 : 0], ReportSize - (ReportID ? 1 : 0));
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
case HID_REQ_GetProtocol:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
Endpoint_ClearSETUP();
|
||
|
while (!(Endpoint_IsINReady()));
|
||
|
Endpoint_Write_8(HIDInterfaceInfo->State.UsingReportProtocol);
|
||
|
Endpoint_ClearIN();
|
||
|
Endpoint_ClearStatusStage();
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
case HID_REQ_SetProtocol:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
Endpoint_ClearSETUP();
|
||
|
Endpoint_ClearStatusStage();
|
||
|
|
||
|
HIDInterfaceInfo->State.UsingReportProtocol = ((USB_ControlRequest.wValue & 0xFF) != 0x00);
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
case HID_REQ_SetIdle:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
Endpoint_ClearSETUP();
|
||
|
Endpoint_ClearStatusStage();
|
||
|
|
||
|
HIDInterfaceInfo->State.IdleCount = ((USB_ControlRequest.wValue & 0xFF00) >> 6);
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
case HID_REQ_GetIdle:
|
||
|
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
|
||
|
{
|
||
|
Endpoint_ClearSETUP();
|
||
|
while (!(Endpoint_IsINReady()));
|
||
|
Endpoint_Write_8(HIDInterfaceInfo->State.IdleCount >> 2);
|
||
|
Endpoint_ClearIN();
|
||
|
Endpoint_ClearStatusStage();
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
|
||
|
{
|
||
|
memset(&HIDInterfaceInfo->State, 0x00, sizeof(HIDInterfaceInfo->State));
|
||
|
HIDInterfaceInfo->State.UsingReportProtocol = true;
|
||
|
HIDInterfaceInfo->State.IdleCount = 500;
|
||
|
|
||
|
HIDInterfaceInfo->Config.ReportINEndpoint.Type = EP_TYPE_INTERRUPT;
|
||
|
|
||
|
if (!(Endpoint_ConfigureEndpointTable(&HIDInterfaceInfo->Config.ReportINEndpoint, 1)))
|
||
|
return false;
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
|
||
|
{
|
||
|
if (USB_DeviceState != DEVICE_STATE_Configured)
|
||
|
return;
|
||
|
|
||
|
if (HIDInterfaceInfo->State.PrevFrameNum == USB_Device_GetFrameNumber())
|
||
|
{
|
||
|
#if defined(USB_DEVICE_OPT_LOWSPEED)
|
||
|
if (!(USB_Options & USB_DEVICE_OPT_LOWSPEED))
|
||
|
return;
|
||
|
#else
|
||
|
return;
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpoint.Address);
|
||
|
|
||
|
if (Endpoint_IsReadWriteAllowed())
|
||
|
{
|
||
|
uint8_t ReportINData[HIDInterfaceInfo->Config.PrevReportINBufferSize];
|
||
|
uint8_t ReportID = 0;
|
||
|
uint16_t ReportINSize = 0;
|
||
|
|
||
|
memset(ReportINData, 0, sizeof(ReportINData));
|
||
|
|
||
|
bool ForceSend = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, HID_REPORT_ITEM_In,
|
||
|
ReportINData, &ReportINSize);
|
||
|
bool StatesChanged = false;
|
||
|
bool IdlePeriodElapsed = (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining));
|
||
|
|
||
|
if (HIDInterfaceInfo->Config.PrevReportINBuffer != NULL)
|
||
|
{
|
||
|
StatesChanged = (memcmp(ReportINData, HIDInterfaceInfo->Config.PrevReportINBuffer, ReportINSize) != 0);
|
||
|
memcpy(HIDInterfaceInfo->Config.PrevReportINBuffer, ReportINData, HIDInterfaceInfo->Config.PrevReportINBufferSize);
|
||
|
}
|
||
|
|
||
|
if (ReportINSize && (ForceSend || StatesChanged || IdlePeriodElapsed))
|
||
|
{
|
||
|
HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;
|
||
|
|
||
|
Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpoint.Address);
|
||
|
|
||
|
if (ReportID)
|
||
|
Endpoint_Write_8(ReportID);
|
||
|
|
||
|
Endpoint_Write_Stream_LE(ReportINData, ReportINSize, NULL);
|
||
|
|
||
|
Endpoint_ClearIN();
|
||
|
}
|
||
|
|
||
|
HIDInterfaceInfo->State.PrevFrameNum = USB_Device_GetFrameNumber();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|