+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 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 disclaim 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 "HID.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();
- 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;
-
- if (!(Endpoint_ConfigureEndpoint(HIDInterfaceInfo->Config.ReportINEndpointNumber, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_IN, HIDInterfaceInfo->Config.ReportINEndpointSize,
- HIDInterfaceInfo->Config.ReportINEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))
- {
- return false;
- }
-
- return true;
-}
-
-void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)
-{
- if (USB_DeviceState != DEVICE_STATE_Configured)
- return;
-
- Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpointNumber);
-
- 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.ReportINEndpointNumber);
-
- if (ReportID)
- Endpoint_Write_8(ReportID);
-
- Endpoint_Write_Stream_LE(ReportINData, ReportINSize, NULL);
-
- Endpoint_ClearIN();
- }
- }
-}
-
-#endif
-
projects / pub / lufa.git / blobdiff