/*
* Virtual Gamepad Emulation Framework - Windows kernel-mode bus driver
* Copyright (C) 2016-2018  Benjamin Höglinger-Stelzer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/


#pragma once

#define HID_GET_FEATURE_REPORT_SIZE_0                   0x31
#define HID_GET_FEATURE_REPORT_SIZE_1                   0x25
#define HID_GET_FEATURE_REPORT_MAC_ADDRESSES_SIZE       0x10

#define HID_SET_FEATURE_REPORT_SIZE_0                   0x17
#define HID_SET_FEATURE_REPORT_SIZE_1                   0x11

#define HID_REPORT_ID_0                                 0xA3
#define HID_REPORT_ID_1                                 0x02
#define HID_REPORT_MAC_ADDRESSES_ID                     0x12
#define HID_REPORT_ID_3                                 0x13
#define HID_REPORT_ID_4                                 0x14

#define DS4_DESCRIPTOR_SIZE                             0x0029
#if defined(_X86_)
#define DS4_CONFIGURATION_SIZE                          0x0050
#else
#define DS4_CONFIGURATION_SIZE                          0x0070
#endif
#define DS4_HID_REPORT_DESCRIPTOR_SIZE                  0x01D3

#define DS4_MANUFACTURER_NAME_LENGTH                    0x38
#define DS4_PRODUCT_NAME_LENGTH                         0x28
#define DS4_OUTPUT_BUFFER_OFFSET                        0x04
#define DS4_OUTPUT_BUFFER_LENGTH                        0x05

#define DS4_REPORT_SIZE                                 0x40
#define DS4_QUEUE_FLUSH_PERIOD                          0x05


//
// DS4-specific device context data.
// 
typedef struct _DS4_DEVICE_DATA
{
    //
    // HID Input Report buffer
    //
    UCHAR Report[DS4_REPORT_SIZE];

    //
    // Output report cache
    //
    DS4_OUTPUT_REPORT OutputReport;

    //
    // Timer for dispatching interrupt transfer
    //
    WDFTIMER PendingUsbInRequestsTimer;

    //
    // Auto-generated MAC address of the target device
    //
    MAC_ADDRESS TargetMacAddress;

    //
    // Default MAC address of the host (not used)
    //
    MAC_ADDRESS HostMacAddress;

} DS4_DEVICE_DATA, *PDS4_DEVICE_DATA;

WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(DS4_DEVICE_DATA, Ds4GetData)


EVT_WDF_TIMER Ds4_PendingUsbRequestsTimerFunc;

NTSTATUS
Bus_Ds4SubmitReport(
    WDFDEVICE Device,
    ULONG SerialNo,
    PDS4_SUBMIT_REPORT Report,
    _In_ BOOLEAN FromInterface
);

//
// DS4-specific functions
// 
NTSTATUS Ds4_PreparePdo(PWDFDEVICE_INIT DeviceInit, PUNICODE_STRING DeviceId, PUNICODE_STRING DeviceDescription);
NTSTATUS Ds4_PrepareHardware(WDFDEVICE Device);
NTSTATUS Ds4_AssignPdoContext(WDFDEVICE Device, PPDO_IDENTIFICATION_DESCRIPTION Description);
VOID Ds4_GetConfigurationDescriptorType(PUCHAR Buffer, ULONG Length);
VOID Ds4_GetDeviceDescriptorType(PUSB_DEVICE_DESCRIPTOR pDescriptor, PPDO_DEVICE_DATA pCommon);
VOID Ds4_SelectConfiguration(PUSBD_INTERFACE_INFORMATION pInfo);