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dolphin/Externals/WiiUseSrc/Src/io_win.c

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/*
* wiiuse
*
* Written By:
* Michael Laforest < para >
* Email: < thepara (--AT--) g m a i l [--DOT--] com >
*
* Copyright 2006-2007
*
* This file is part of wiiuse.
*
* 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/>.
*
* $Header$
*
*/
/**
* @file
* @brief Handles device I/O for Windows.
*/
#ifdef WIN32
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <hidsdi.h>
#include <dbt.h>
#include <setupapi.h>
#include "definitions.h"
#include "wiiuse_internal.h"
#include "io.h"
int wiiuse_find(struct wiimote_t** wm, int max_wiimotes, int timeout) {
GUID device_id;
HANDLE dev;
HDEVINFO device_info;
int i, index;
DWORD len;
SP_DEVICE_INTERFACE_DATA device_data;
PSP_DEVICE_INTERFACE_DETAIL_DATA detail_data = NULL;
HIDD_ATTRIBUTES attr;
int found = 0;
(void) timeout; // unused
device_data.cbSize = sizeof(device_data);
index = 0;
/* get the device id */
HidD_GetHidGuid(&device_id);
/* get all hid devices connected */
device_info = SetupDiGetClassDevs(&device_id, NULL, NULL, (DIGCF_DEVICEINTERFACE | DIGCF_PRESENT));
for (;; ++index) {
if (detail_data) {
free(detail_data);
detail_data = NULL;
}
/* query the next hid device info */
if (!SetupDiEnumDeviceInterfaces(device_info, NULL, &device_id, index, &device_data))
break;
/* get the size of the data block required */
i = SetupDiGetDeviceInterfaceDetail(device_info, &device_data, NULL, 0, &len, NULL);
detail_data = malloc(len);
detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
/* query the data for this device */
if (!SetupDiGetDeviceInterfaceDetail(device_info, &device_data, detail_data, len, NULL, NULL))
continue;
/* open the device */
dev = CreateFile(detail_data->DevicePath,
(GENERIC_READ | GENERIC_WRITE),
(FILE_SHARE_READ | FILE_SHARE_WRITE),
NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (dev == INVALID_HANDLE_VALUE)
continue;
/* get device attributes */
attr.Size = sizeof(attr);
i = HidD_GetAttributes(dev, &attr);
if ((attr.VendorID == WM_VENDOR_ID) && (attr.ProductID == WM_PRODUCT_ID)) {
/* this is a wiimote */
wm[found]->dev_handle = dev;
wm[found]->hid_overlap.hEvent = CreateEvent(NULL, 1, 1, L"");
wm[found]->hid_overlap.Offset = 0;
wm[found]->hid_overlap.OffsetHigh = 0;
WIIMOTE_ENABLE_STATE(wm[found], WIIMOTE_STATE_DEV_FOUND);
WIIMOTE_ENABLE_STATE(wm[found], WIIMOTE_STATE_CONNECTED);
/* try to set the output report to see if the device is actually connected */
if (!wiiuse_set_report_type(wm[found])) {
Sleep(10);
WIIMOTE_DISABLE_STATE(wm[found], WIIMOTE_STATE_CONNECTED);
if (wm[found]->event == WIIUSE_UNEXPECTED_DISCONNECT)
break;
continue;
}
/* do the handshake * shouldn't be needed as well, I'm gonna leave first it tho*/
wiiuse_handshake(wm[found], NULL, 0);
WIIUSE_INFO("Connected to wiimote [id %i].", wm[found]->unid);
++found;
if (found >= max_wiimotes)
break;
} else {
/* not a wiimote */
CloseHandle(dev);
}
}
if (detail_data)
free(detail_data);
SetupDiDestroyDeviceInfoList(device_info);
return found;
}
int wiiuse_connect(struct wiimote_t** wm, int wiimotes) {
int connected = 0;
int i = 0;
for (; i < wiimotes; ++i) {
if (WIIMOTE_IS_SET(wm[i], WIIMOTE_STATE_CONNECTED))
++connected;
}
return connected;
}
void wiiuse_disconnect(struct wiimote_t* wm) {
if (!wm || WIIMOTE_IS_CONNECTED(wm))
return;
CloseHandle(wm->dev_handle);
wm->dev_handle = 0;
ResetEvent(&wm->hid_overlap);
wm->event = WIIUSE_NONE;
WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_CONNECTED);
WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_HANDSHAKE);
}
int wiiuse_io_read(struct wiimote_t* wm) {
DWORD b, r;
if (!wm || !WIIMOTE_IS_CONNECTED(wm))
return 0;
if (!ReadFile(wm->dev_handle, wm->event_buf, sizeof(wm->event_buf), &b, &wm->hid_overlap)) {
/* partial read */
b = GetLastError();
if ((b == ERROR_HANDLE_EOF) || (b == ERROR_DEVICE_NOT_CONNECTED)) {
/* remote disconnect */
wiiuse_disconnected(wm);
wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
return 0;
}
r = WaitForSingleObject(wm->hid_overlap.hEvent, wm->timeout);
if (r == WAIT_TIMEOUT) {
/* timeout - cancel and continue */
if (*wm->event_buf)
WIIUSE_WARNING("Packet ignored. This may indicate a problem (timeout is %i ms).", wm->timeout);
CancelIo(wm->dev_handle);
ResetEvent(wm->hid_overlap.hEvent);
return 0;
} else if (r == WAIT_FAILED) {
WIIUSE_WARNING("A wait error occured on reading from wiimote %i.", wm->unid);
return 0;
}
if (!GetOverlappedResult(wm->dev_handle, &wm->hid_overlap, &b, 0))
return 0;
}
// This needs to be done even if ReadFile fails, essential during init
// Move the data over one, so we can add back in data report indicator byte (here, 0xa1)
memmove(wm->event_buf + 1, wm->event_buf, sizeof(wm->event_buf) - 1);
wm->event_buf[0] = 0xa1;
ResetEvent(wm->hid_overlap.hEvent);
return 1;
}
int wiiuse_io_write(struct wiimote_t* wm, byte* buf, int len) {
DWORD bytes, dw;
int i;
if (!wm || !WIIMOTE_IS_CONNECTED(wm))
return 0;
switch (wm->stack) {
case WIIUSE_STACK_UNKNOWN:
{
/* try to auto-detect the stack type */
if (i = WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap)) {
/* bluesoleil will always return 1 here, even if it's not connected */
wm->stack = WIIUSE_STACK_BLUESOLEIL;
return i;
}
if (i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1)) {
wm->stack = WIIUSE_STACK_MS;
return i;
}
/*--------------------------------------------------------------
dw = GetLastError(); //checking for 121 = timeout on semaphore/device off/disconnected to avoid trouble with other stacks toshiba/widcomm
//995 = The I/O operation has been aborted because of either a thread exit or an application request.
if ( (dw == 121) || (dw == 995) ) {
WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT");
wiiuse_disconnected(wm);
wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
}
else WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT ERROR: %08x", dw);
--------------------------------------------------------------*/
//If the part below causes trouble on WIDCOMM/TOSHIBA stack uncomment the lines above, and comment out the 3 lines below instead.
WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT - time out");
wiiuse_disconnected(wm);
wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
//WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: Unable to determine bluetooth stack type || Wiimote timed out.");
return 0;
}
case WIIUSE_STACK_MS:
i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1);
dw = GetLastError();
if (dw == 121) { // semaphore timeout
WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_MS]: WIIUSE_UNEXPECTED_DISCONNECT");
wiiuse_disconnected(wm);
wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
return 0;
}/* else if (dw)
WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_MS]: WIIUSE_UNEXPECTED_DISCONNECT ERROR: %08x", dw);
*/
// it is not important to catch all errors here at this place, rest will be covered by io_reads.
return i;
case WIIUSE_STACK_BLUESOLEIL:
return WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap);
}
return 0;
}
//Checks if the corresponding device to a system notification is a wiimote
//I placed the code here to avoid ddk/wdk dependencies @wiimote plugin
int wiiuse_check_system_notification(unsigned int nMsg, WPARAM wParam, LPARAM lParam) {
PDEV_BROADCAST_HDR pDevice = (PDEV_BROADCAST_HDR)lParam;
switch( pDevice->dbch_devicetype ) {
case DBT_DEVTYP_DEVICEINTERFACE:
{
PDEV_BROADCAST_DEVICEINTERFACE pDeviceInfo = (PDEV_BROADCAST_DEVICEINTERFACE)pDevice;
HIDD_ATTRIBUTES attr;
char stringbuf[255];
HANDLE dev = CreateFile(pDeviceInfo->dbcc_name,
0,(FILE_SHARE_READ | FILE_SHARE_WRITE),
NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (dev != INVALID_HANDLE_VALUE)
{
attr.Size = sizeof(attr);
HidD_GetAttributes(dev, &attr);
//Checking PID&VID
if ((attr.VendorID == WM_VENDOR_ID) && (attr.ProductID == WM_PRODUCT_ID)) {
CloseHandle(dev);
return 1;
}
CloseHandle(dev);
}
else { //different method to acquire the "wiimote vid/pid" for a comparison when the device is already unavailable @CreateFile()
wcstombs(stringbuf, pDeviceInfo->dbcc_name, 255);
//ms bt stack + bluesoleil vid/pid dbccname format
if ( (strstr(stringbuf, "VID&0002057e_PID&0306") != NULL) || (strstr(stringbuf, "VID_057e&PID_0306") != NULL) )
{
return 1;
}
}
return 0;
}
default:
return 0;
}
return 0;
}
//register a handle for device notifications
int wiiuse_register_system_notification(HWND hwnd) {
DEV_BROADCAST_DEVICEINTERFACE Filter;
ZeroMemory( &Filter, sizeof(Filter) );
//GUID wiimoteguid;
//CLSIDFromString(_T("745a17a0-74d3-11d0-b6fe-00a0c90f57da"),&wiimoteguid);
Filter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);
Filter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
//Filter.dbcc_classguid = wiimoteguid;
return RegisterDeviceNotification(hwnd,&Filter, DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);
}
#endif /* ifdef WIN32 */
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