mirror of https://github.com/PCSX2/pcsx2.git
118 lines
4.6 KiB
C++
118 lines
4.6 KiB
C++
#include "Global.h"
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#include "HidDevice.h"
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#include <setupapi.h>
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// Tons of annoying junk to avoid the hid dependencies, so no one has to download the
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// DDK to compile.
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#define HIDP_STATUS_SUCCESS 0x110000
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struct HIDD_ATTRIBUTES {
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ULONG Size;
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USHORT VendorID;
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USHORT ProductID;
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USHORT VersionNumber;
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};
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struct HIDP_PREPARSED_DATA;
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typedef BOOLEAN (__stdcall *_HidD_GetAttributes) (HANDLE HidDeviceObject, HIDD_ATTRIBUTES *Attributes);
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typedef void (__stdcall *_HidD_GetHidGuid) (GUID* HidGuid);
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typedef BOOLEAN (__stdcall *_HidD_GetPreparsedData) (HANDLE HidDeviceObject, HIDP_PREPARSED_DATA **PreparsedData);
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typedef NTSTATUS (__stdcall *_HidP_GetCaps) (HIDP_PREPARSED_DATA* PreparsedData, HIDP_CAPS *caps);
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typedef BOOLEAN (__stdcall *_HidD_FreePreparsedData) (HIDP_PREPARSED_DATA *PreparsedData);
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typedef BOOLEAN (__stdcall *_HidD_GetFeature) (HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG ReportBufferLength);
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typedef BOOLEAN (__stdcall *_HidD_SetFeature) (HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG ReportBufferLength);
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GUID GUID_DEVINTERFACE_HID;
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_HidD_GetHidGuid pHidD_GetHidGuid;
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_HidD_GetAttributes pHidD_GetAttributes;
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_HidD_GetPreparsedData pHidD_GetPreparsedData;
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_HidP_GetCaps pHidP_GetCaps;
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_HidD_FreePreparsedData pHidD_FreePreparsedData;
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_HidD_GetFeature pHidD_GetFeature;
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_HidD_SetFeature pHidD_SetFeature;
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HMODULE hModHid = 0;
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int InitHid() {
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if (hModHid) {
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return 1;
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}
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hModHid = LoadLibraryA("hid.dll");
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if (hModHid) {
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if ((pHidD_GetHidGuid = (_HidD_GetHidGuid) GetProcAddress(hModHid, "HidD_GetHidGuid")) &&
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(pHidD_GetAttributes = (_HidD_GetAttributes) GetProcAddress(hModHid, "HidD_GetAttributes")) &&
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(pHidD_GetPreparsedData = (_HidD_GetPreparsedData) GetProcAddress(hModHid, "HidD_GetPreparsedData")) &&
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(pHidP_GetCaps = (_HidP_GetCaps) GetProcAddress(hModHid, "HidP_GetCaps")) &&
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(pHidD_FreePreparsedData = (_HidD_FreePreparsedData) GetProcAddress(hModHid, "HidD_FreePreparsedData")) &&
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(pHidD_GetFeature = (_HidD_GetFeature) GetProcAddress(hModHid, "HidD_GetFeature")) &&
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(pHidD_SetFeature = (_HidD_SetFeature) GetProcAddress(hModHid, "HidD_SetFeature"))) {
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pHidD_GetHidGuid(&GUID_DEVINTERFACE_HID);
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return 1;
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}
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UninitHid();
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}
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return 0;
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}
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int FindHids(HidDeviceInfo **foundDevs, int vid, int pid) {
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if (!InitHid()) return 0;
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int numFoundDevs = 0;
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*foundDevs = 0;
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HDEVINFO hdev = SetupDiGetClassDevsW(&GUID_DEVINTERFACE_HID, 0, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
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if (hdev != INVALID_HANDLE_VALUE) {
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SP_DEVICE_INTERFACE_DATA devInterfaceData;
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devInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
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for (int i=0; SetupDiEnumDeviceInterfaces(hdev, 0, &GUID_DEVINTERFACE_HID, i, &devInterfaceData); i++) {
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DWORD size = 0;
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SetupDiGetDeviceInterfaceDetail(hdev, &devInterfaceData, 0, 0, &size, 0);
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if (GetLastError() != ERROR_INSUFFICIENT_BUFFER || !size) continue;
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SP_DEVICE_INTERFACE_DETAIL_DATA *devInterfaceDetails = (SP_DEVICE_INTERFACE_DETAIL_DATA *) malloc(size);
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if (!devInterfaceDetails) continue;
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devInterfaceDetails->cbSize = sizeof(*devInterfaceDetails);
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SP_DEVINFO_DATA devInfoData;
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devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
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if (!SetupDiGetDeviceInterfaceDetail(hdev, &devInterfaceData, devInterfaceDetails, size, &size, &devInfoData)) continue;
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HANDLE hfile = CreateFileW(devInterfaceDetails->DevicePath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
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if (hfile != INVALID_HANDLE_VALUE) {
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HIDD_ATTRIBUTES attributes;
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attributes.Size = sizeof(attributes);
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if (pHidD_GetAttributes(hfile, &attributes)) {
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if (attributes.VendorID == vid && attributes.ProductID == pid) {
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HIDP_PREPARSED_DATA *pData;
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HIDP_CAPS caps;
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if (pHidD_GetPreparsedData(hfile, &pData)) {
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if (HIDP_STATUS_SUCCESS == pHidP_GetCaps(pData, &caps)) {
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if (numFoundDevs % 32 == 0) {
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*foundDevs = (HidDeviceInfo*) realloc(*foundDevs, sizeof(HidDeviceInfo) * (32 + numFoundDevs));
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}
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HidDeviceInfo *dev = &foundDevs[0][numFoundDevs++];
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dev->caps = caps;
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dev->vid = attributes.VendorID;
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dev->pid = attributes.ProductID;
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dev->path = wcsdup(devInterfaceDetails->DevicePath);
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}
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pHidD_FreePreparsedData(pData);
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}
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}
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}
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CloseHandle(hfile);
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}
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free(devInterfaceDetails);
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}
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SetupDiDestroyDeviceInfoList(hdev);
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}
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return numFoundDevs;
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}
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void UninitHid() {
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if (hModHid) {
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FreeLibrary(hModHid);
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hModHid = 0;
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}
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}
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