402 lines
11 KiB
C
402 lines
11 KiB
C
/*
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* wiiuse
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*
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* Written By:
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* Michael Laforest < para >
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* Email: < thepara (--AT--) g m a i l [--DOT--] com >
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*
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* Copyright 2006-2007
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*
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* This file is part of wiiuse.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* $Header$
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*
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*/
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/**
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* @file
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* @brief Handles device I/O for Windows.
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*/
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#ifdef WIN32
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#include <stdio.h>
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#include <stdlib.h>
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#include <windows.h>
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#include <hidsdi.h>
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#include <dbt.h>
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#include <setupapi.h>
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#include "definitions.h"
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#include "wiiuse_internal.h"
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int wiiuse_find(struct wiimote_t** wm, int max_wiimotes, int wiimotes) {
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GUID device_id;
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HANDLE dev;
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HDEVINFO device_info;
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int i, x, found, index, udisc = 0;
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DWORD len;
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SP_DEVICE_INTERFACE_DATA device_data;
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PSP_DEVICE_INTERFACE_DETAIL_DATA detail_data = NULL;
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HIDD_ATTRIBUTES attr;
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// todo: handle/remove (unexpected and forced) disconnected wiimotes here
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// removal of unneeded wiimotes and exiting when we got enough wiimotes connected
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if(wiiuse_remove(wm, wiimotes, max_wiimotes))
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return wm;
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device_data.cbSize = sizeof(device_data);
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// get the device id
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HidD_GetHidGuid(&device_id);
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// get all hid devices connected
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device_info = SetupDiGetClassDevs(&device_id, NULL, NULL, (DIGCF_DEVICEINTERFACE | DIGCF_PRESENT));
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for (;wiimotes < max_wiimotes; ++index) {
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if (detail_data) {
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free(detail_data);
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detail_data = NULL;
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}
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found = 0;
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// query the next hid device info
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if (!SetupDiEnumDeviceInterfaces(device_info, NULL, &device_id, index, &device_data))
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break;
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// get the size of the data block required
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i = SetupDiGetDeviceInterfaceDetail(device_info, &device_data, NULL, 0, &len, NULL);
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detail_data = malloc(len);
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detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
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// query the data for this device
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if (!SetupDiGetDeviceInterfaceDetail(device_info, &device_data, detail_data, len, NULL, NULL))
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continue;
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// Wiimote already added
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for(x = 0; x < wiimotes; x++)
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{
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if(memcmp(wm[x]->devicepath,detail_data->DevicePath,197) == 0) {
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found = 1;
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break;
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}
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}
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if (found)
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continue;
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// open new device
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dev = CreateFile(detail_data->DevicePath,
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(GENERIC_READ | GENERIC_WRITE),
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(FILE_SHARE_READ | FILE_SHARE_WRITE),
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NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
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if (dev == INVALID_HANDLE_VALUE)
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continue;
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// get device attributes
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attr.Size = sizeof(attr);
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i = HidD_GetAttributes(dev, &attr);
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if ((attr.VendorID == WM_VENDOR_ID) && (attr.ProductID == WM_PRODUCT_ID)) {
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//this is a wiimote
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wm[wiimotes]->dev_handle = dev;
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wm[wiimotes]->hid_overlap.hEvent = CreateEvent(NULL, 1, 1, L"");
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wm[wiimotes]->hid_overlap.Offset = 0;
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wm[wiimotes]->hid_overlap.OffsetHigh = 0;
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WIIMOTE_ENABLE_STATE(wm[wiimotes], WIIMOTE_STATE_DEV_FOUND);
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WIIMOTE_ENABLE_STATE(wm[wiimotes], WIIMOTE_STATE_CONNECTED);
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WIIMOTE_ENABLE_STATE(wm[wiimotes], WIIUSE_CONTINUOUS);
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// try to set the output report to see if the device is actually connected
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if (!wiiuse_set_report_type(wm[wiimotes])) {
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WIIMOTE_DISABLE_STATE(wm[wiimotes], WIIMOTE_STATE_CONNECTED);
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if (wm[wiimotes]->event == WIIUSE_UNEXPECTED_DISCONNECT)
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{
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wiiuse_disconnect(wm[wiimotes]);
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memset(wm[wiimotes],0,sizeof(wm[wiimotes]));
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}
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continue;
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}
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memcpy(wm[wiimotes]->devicepath,detail_data->DevicePath,197);
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WIIUSE_INFO("Connected to wiimote [id %i].", wm[wiimotes]->unid);
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++wiimotes;
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} else {
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// not a wiimote
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CloseHandle(dev);
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}
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}
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if (detail_data)
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free(detail_data);
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SetupDiDestroyDeviceInfoList(device_info);
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return wiimotes;
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}
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int wiiuse_connect(struct wiimote_t** wm, int wiimotes) {
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int i,connected=0;
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for (i = 0; i < wiimotes; ++i) {
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if (WIIMOTE_IS_SET(wm[i], WIIMOTE_STATE_CONNECTED))
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++connected;
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}
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return connected;
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}
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void wiiuse_disconnect(struct wiimote_t* wm) {
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if (!wm || WIIMOTE_IS_CONNECTED(wm))
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return;
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CloseHandle(wm->dev_handle);
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wm->dev_handle = 0;
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ResetEvent(&wm->hid_overlap);
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wm->event = WIIUSE_NONE;
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WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_CONNECTED);
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WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_HANDSHAKE);
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}
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int wiiuse_io_read(struct wiimote_t* wm) {
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DWORD b, r;
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if (!wm || !WIIMOTE_IS_CONNECTED(wm))
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return 0;
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if (!ReadFile(wm->dev_handle, wm->event_buf, sizeof(wm->event_buf), &b, &wm->hid_overlap)) {
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/* partial read */
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b = GetLastError();
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if ((b == ERROR_HANDLE_EOF) || (b == ERROR_DEVICE_NOT_CONNECTED)) {
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/* remote disconnect */
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wiiuse_disconnected(wm);
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wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
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return 0;
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}
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r = WaitForSingleObject(wm->hid_overlap.hEvent, wm->timeout);
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if (r == WAIT_TIMEOUT) {
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/* timeout - cancel and continue */
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if (*wm->event_buf)
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WIIUSE_WARNING("Packet ignored. This may indicate a problem (timeout is %i ms).", wm->timeout);
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CancelIo(wm->dev_handle);
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ResetEvent(wm->hid_overlap.hEvent);
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return 0;
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} else if (r == WAIT_FAILED) {
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WIIUSE_WARNING("A wait error occured on reading from wiimote %i.", wm->unid);
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return 0;
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}
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if (!GetOverlappedResult(wm->dev_handle, &wm->hid_overlap, &b, 0))
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return 0;
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}
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// This needs to be done even if ReadFile fails, essential during init
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// Move the data over one, so we can add back in data report indicator byte (here, 0xa1)
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memmove(wm->event_buf + 1, wm->event_buf, sizeof(wm->event_buf) - 1);
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wm->event_buf[0] = 0xa1;
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ResetEvent(wm->hid_overlap.hEvent);
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return 1;
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}
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int wiiuse_io_write(struct wiimote_t* wm, byte* buf, int len) {
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DWORD bytes, dw;
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int i;
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if (!wm || !WIIMOTE_IS_CONNECTED(wm))
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return 0;
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switch (wm->stack) {
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case WIIUSE_STACK_UNKNOWN:
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{
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/* try to auto-detect the stack type */
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if (i = WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap)) {
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/* bluesoleil will always return 1 here, even if it's not connected */
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wm->stack = WIIUSE_STACK_BLUESOLEIL;
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return i;
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}
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if (i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1)) {
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wm->stack = WIIUSE_STACK_MS;
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return i;
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}
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/*--------------------------------------------------------------
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dw = GetLastError(); //checking for 121 = timeout on semaphore/device off/disconnected to avoid trouble with other stacks toshiba/widcomm
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//995 = The I/O operation has been aborted because of either a thread exit or an application request.
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if ( (dw == 121) || (dw == 995) ) {
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WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT");
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wiiuse_disconnected(wm);
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wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
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}
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else WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT ERROR: %08x", dw);
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--------------------------------------------------------------*/
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//If the part below causes trouble on WIDCOMM/TOSHIBA stack uncomment the lines above, and comment out the 3 lines below instead.
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WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: WIIUSE_UNEXPECTED_DISCONNECT - time out");
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wiiuse_disconnected(wm);
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wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
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//WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_UNKNOWN]: Unable to determine bluetooth stack type || Wiimote timed out.");
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return 0;
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}
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case WIIUSE_STACK_MS:
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i = HidD_SetOutputReport(wm->dev_handle, buf + 1, len - 1);
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dw = GetLastError();
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if (dw == 121) { // semaphore timeout
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WIIUSE_INFO("wiiuse_io_write[WIIUSE_STACK_MS]: WIIUSE_UNEXPECTED_DISCONNECT");
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wiiuse_disconnected(wm);
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wm->event = WIIUSE_UNEXPECTED_DISCONNECT;
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return 0;
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}/* else if (dw)
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WIIUSE_ERROR("wiiuse_io_write[WIIUSE_STACK_MS]: WIIUSE_UNEXPECTED_DISCONNECT ERROR: %08x", dw);
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*/
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// it is not important to catch all errors here at this place, rest will be covered by io_reads.
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return i;
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case WIIUSE_STACK_BLUESOLEIL:
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return WriteFile(wm->dev_handle, buf + 1, 22, &bytes, &wm->hid_overlap);
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}
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return 0;
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}
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//Checks if the corresponding device to a system notification is a wiimote
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//I placed the code here to avoid ddk/wdk dependencies @wiimote plugin
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int wiiuse_check_system_notification(unsigned int nMsg, WPARAM wParam, LPARAM lParam) {
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PDEV_BROADCAST_HDR pDevice = (PDEV_BROADCAST_HDR)lParam;
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switch( pDevice->dbch_devicetype ) {
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case DBT_DEVTYP_DEVICEINTERFACE:
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{
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PDEV_BROADCAST_DEVICEINTERFACE pDeviceInfo = (PDEV_BROADCAST_DEVICEINTERFACE)pDevice;
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HIDD_ATTRIBUTES attr;
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char stringbuf[255];
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HANDLE dev = CreateFile(pDeviceInfo->dbcc_name,
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0,(FILE_SHARE_READ | FILE_SHARE_WRITE),
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NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
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if (dev != INVALID_HANDLE_VALUE)
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{
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attr.Size = sizeof(attr);
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HidD_GetAttributes(dev, &attr);
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//Checking PID&VID
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if ((attr.VendorID == WM_VENDOR_ID) && (attr.ProductID == WM_PRODUCT_ID)) {
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CloseHandle(dev);
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return 1;
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}
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CloseHandle(dev);
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}
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else { //different method to acquire the "wiimote vid/pid" for a comparison when the device is already unavailable @CreateFile()
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wcstombs(stringbuf, pDeviceInfo->dbcc_name, 255);
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//ms bt stack + bluesoleil vid/pid dbccname format
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if ( (strstr(stringbuf, "VID&0002057e_PID&0306") != NULL) || (strstr(stringbuf, "VID_057e&PID_0306") != NULL) )
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{
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return 1;
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}
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}
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return 0;
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}
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default:
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return 0;
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}
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return 0;
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}
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//register a handle for device notifications
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int wiiuse_register_system_notification(HWND hwnd) {
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DEV_BROADCAST_DEVICEINTERFACE Filter;
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ZeroMemory( &Filter, sizeof(Filter) );
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//GUID wiimoteguid;
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//CLSIDFromString(_T("745a17a0-74d3-11d0-b6fe-00a0c90f57da"),&wiimoteguid);
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Filter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);
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Filter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
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//Filter.dbcc_classguid = wiimoteguid;
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return RegisterDeviceNotification(hwnd,&Filter, DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);
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}
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int wiiuse_remove(struct wiimote_t** wm, int wiimotes, int max_wiimotes) {
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int i = 0;
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WIIUSE_INFO("Remove Wiimotes, WM: %i MAX_WM: %i",wiimotes, max_wiimotes);
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//No cleanup needed, less wiimotes available than needed
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if (wiimotes <= max_wiimotes)
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return 0;
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else if (!wm)
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return 0;
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for (i = max_wiimotes; i < wiimotes; i++) {
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if(wm[i]) {
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wiiuse_disconnect(wm[i]);
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wm[i]->state = WIIMOTE_INIT_STATES;
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wm[i]->flags = WIIUSE_INIT_FLAGS;
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wm[i]->event = WIIUSE_NONE;
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}
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}
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return i;
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}
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#endif /* ifdef WIN32 */
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