move USB handling into a separate file

2003-03-19 20:34:40 +00:00
parent b4776d1ad0
commit 567e1c533f
4 changed files with 199 additions and 169 deletions
@@ -0,0 +1,157 @@
+#include "global.h"
+#include "USB.h"
+#include "RageLog.h"
+#include "RageUtil.h"
+
+#pragma comment(lib, "ddk/setupapi.lib") 
+#pragma comment(lib, "ddk/hid.lib") 
+
+extern "C" {
+#include "ddk/setupapi.h"
+/* Quiet header warning: */
+#pragma warning( push )
+#pragma warning (disable : 4201)
+#include "ddk/hidsdi.h"
+#pragma warning( pop )
+}
+
+static char *GetUSBDevicePath (int num)
+{
+    GUID guid;
+    HidD_GetHidGuid(&guid);
+
+    HDEVINFO DeviceInfo = SetupDiGetClassDevs (&guid,
+                 NULL, NULL, (DIGCF_PRESENT | DIGCF_DEVICEINTERFACE));
+
+    SP_DEVICE_INTERFACE_DATA DeviceInterface;
+    DeviceInterface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+
+    char *ret = NULL;
+    PSP_INTERFACE_DEVICE_DETAIL_DATA DeviceDetail = NULL;
+
+    if (!SetupDiEnumDeviceInterfaces (DeviceInfo,
+               NULL, &guid, num, &DeviceInterface))
+		goto err;
+
+    unsigned long size;
+    SetupDiGetDeviceInterfaceDetail (DeviceInfo, &DeviceInterface, NULL, 0, &size, 0);
+
+    DeviceDetail = (PSP_INTERFACE_DEVICE_DETAIL_DATA) malloc(size);
+    DeviceDetail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);
+
+    if (SetupDiGetDeviceInterfaceDetail (DeviceInfo, &DeviceInterface,
+		DeviceDetail, size, &size, NULL)) 
+    {
+        ret = strdup(DeviceDetail->DevicePath);
+    }
+
+err:
+    SetupDiDestroyDeviceInfoList (DeviceInfo);
+    free (DeviceDetail);
+    return ret;
+}
+
+static HANDLE OpenUSB (int VID, int PID, int num)
+{
+    DWORD index = 0;
+
+    char *path;
+	HANDLE h = INVALID_HANDLE_VALUE;
+
+    while ((path = GetUSBDevicePath (index++)) != NULL)
+    {
+		if(h != INVALID_HANDLE_VALUE)
+			CloseHandle (h);
+
+		h = CreateFile (path, GENERIC_READ,
+			   FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
+
+		free(path);
+
+		if(h == INVALID_HANDLE_VALUE)
+			continue;
+
+		HIDD_ATTRIBUTES attr;
+		if (!HidD_GetAttributes (h, &attr))
+			continue;
+
+        if ((VID != -1 && attr.VendorID != VID) &&
+            (PID != -1 && attr.ProductID != PID))
+			continue; /* This isn't it. */
+
+		/* The VID and PID match. */
+		if(num-- == 0)
+            return h;
+    }
+	if(h != INVALID_HANDLE_VALUE)
+		CloseHandle (h);
+
+    return INVALID_HANDLE_VALUE;
+}
+
+USBDevice::USBDevice()
+{
+	ZeroMemory( &ov, sizeof(ov) );
+	pending=false;
+	h = INVALID_HANDLE_VALUE;
+}
+
+USBDevice::~USBDevice()
+{
+	if(h != INVALID_HANDLE_VALUE)
+		CloseHandle(h);
+}
+
+bool USBDevice::Open(int VID, int PID, int num)
+{
+	h = OpenUSB (VID, PID, num);
+	return h != INVALID_HANDLE_VALUE;
+}
+
+int USBDevice::GetPadEvent()
+{
+	if(h == INVALID_HANDLE_VALUE)
+		return -1;
+
+    int ret;
+
+    if(!pending)
+    {
+		/* Request feedback from the device. */
+	    unsigned long r;
+    	ret = ReadFile(h, &buf, sizeof(buf), &r, &ov);
+    	pending=true;
+    }
+
+	/* See if we have a response for our request (which we may
+	 * have made on a previous call): */
+    if(WaitForSingleObjectEx(h, 0, TRUE) == WAIT_TIMEOUT)
+		return -1;
+    
+	/* We do; get the result.  It'll go into the original &buf
+	 * we supplied on the original call; that's why buf is a
+	 * member instead of a local. */
+    unsigned long cnt;
+    ret = GetOverlappedResult(h, &ov, &cnt, FALSE);
+    pending=false;
+
+    if(ret == 0 && (GetLastError() == ERROR_IO_PENDING || GetLastError() == ERROR_IO_INCOMPLETE))
+		return -1;
+
+    if(ret == 0) {
+		// this prints too much info in Win98
+		// See if it's fixed--h should be INVALID_HANDLE_VALUE if
+		// the pad isn't there. -glenn
+		LOG->Warn(werr_ssprintf(GetLastError(), "Error reading Pump pad"));
+	    return -1;
+    }
+
+    return buf;
+}
+
+/*
+-----------------------------------------------------------------------------
+ Copyright (c) 2002-2003 by the person(s) listed below.  All rights reserved.
+	Glenn Maynard
+-----------------------------------------------------------------------------
+*/