From a1a45757405449563dbed163a2185b2a7af80d21 Mon Sep 17 00:00:00 2001
From: Dominik Riebeling <Dominik.Riebeling@gmail.com>
Date: Sun, 23 Sep 2007 10:34:28 +0000
Subject: w32: add USB autodetection based on PID / VID values.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14826 a1c6a512-1295-4272-9138-f99709370657
---
 rbutil/rbutilqt/autodetection.cpp | 88 ++++++++++++++++++++++++++++++++++++++-
 rbutil/rbutilqt/rbutilqt.pro      |  5 +--
 2 files changed, 89 insertions(+), 4 deletions(-)

(limited to 'rbutil/rbutilqt')

diff --git a/rbutil/rbutilqt/autodetection.cpp b/rbutil/rbutilqt/autodetection.cpp
index 9b547bdb88..def1d12ef7 100644
--- a/rbutil/rbutilqt/autodetection.cpp
+++ b/rbutil/rbutilqt/autodetection.cpp
@@ -24,6 +24,15 @@
 #include <mntent.h>
 #include <usb.h>
 #endif
+#if defined(Q_OS_WIN32)
+#if defined(UNICODE)
+#define _UNICODE
+#endif
+#include <stdio.h>
+#include <tchar.h>
+#include <windows.h>
+#include <setupapi.h>
+#endif
 
 Autodetection::Autodetection(QObject* parent): QObject(parent)
 {
@@ -207,7 +216,7 @@ QString Autodetection::resolveMountPoint(QString device)
  */
 bool Autodetection::detectUsb()
 {
-        // autodetection only uses the buildin device settings only
+    // autodetection uses the buildin device settings only
     QSettings dev(":/ini/rbutil.ini", QSettings::IniFormat, this);
 
     // get a list of ID -> target name
@@ -268,6 +277,83 @@ bool Autodetection::detectUsb()
         }
         b = b->next;
     }
+#endif
+
+#if defined(Q_OS_WIN32)
+    HDEVINFO deviceInfo;
+    SP_DEVINFO_DATA infoData;
+    DWORD i;
+
+    // Iterate over all devices
+    // by doing it this way it's unneccessary to use GUIDs which might be not
+    // present in current MinGW. It also seemed to be more reliably than using
+    // a GUID.
+    // See KB259695 for an example.
+    deviceInfo = SetupDiGetClassDevs(NULL, NULL, NULL, DIGCF_ALLCLASSES | DIGCF_PRESENT);
+
+    infoData.cbSize = sizeof(SP_DEVINFO_DATA);
+
+    for(i = 0; SetupDiEnumDeviceInfo(deviceInfo, i, &infoData); i++) {
+        DWORD data;
+        LPTSTR buffer = NULL;
+        DWORD buffersize = 0;
+
+        // get device desriptor first
+        // for some reason not doing so results in bad things (tm)
+        while(!SetupDiGetDeviceRegistryProperty(deviceInfo, &infoData,
+            SPDRP_DEVICEDESC,&data, (PBYTE)buffer, buffersize, &buffersize)) {
+            if(GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+                if(buffer) free(buffer);
+                // double buffer size to avoid problems as per KB888609
+                buffer = (LPTSTR)malloc(buffersize * 2);
+            }
+            else {
+                break;
+            }
+        }
+
+        // now get the hardware id, which contains PID and VID.
+        while(!SetupDiGetDeviceRegistryProperty(deviceInfo, &infoData,
+            SPDRP_HARDWAREID,&data, (PBYTE)buffer, buffersize, &buffersize)) {
+            if(GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+                if(buffer) free(buffer);
+                // double buffer size to avoid problems as per KB888609
+                buffer = (LPTSTR)malloc(buffersize * 2);
+            }
+            else {
+                break;
+            }
+        }
+
+        unsigned int vid, pid, rev;
+        if(_stscanf(buffer, _TEXT("USB\\Vid_%x&Pid_%x&Rev_%x"), &vid, &pid, &rev) != 3) {
+            qDebug() << "Error getting USB ID -- possibly no USB device";
+        }
+        else {
+            uint32_t id;
+            id = vid << 16 | pid;
+            qDebug("VID: %04x PID: %04x", vid, pid);
+            if(usbids.contains(id)) {
+                    m_device = usbids.value(id);
+                    if(buffer) free(buffer);
+                    SetupDiDestroyDeviceInfoList(deviceInfo);
+                    qDebug() << "detectUsb: Got" << m_device;
+                    return true;
+                }
+                if(usberror.contains(id)) {
+                    m_errdev = usberror.value(id);
+                    // we detected something, so return true
+                    if(buffer) free(buffer);
+                    SetupDiDestroyDeviceInfoList(deviceInfo);
+                    qDebug() << "detectUsb: Got" << m_device;
+                    qDebug() << "detected device with problems via usb!";
+                    return true;
+                }
+        }
+        if(buffer) free(buffer);
+    }
+    SetupDiDestroyDeviceInfoList(deviceInfo);
+
 #endif
     return false;
 }
diff --git a/rbutil/rbutilqt/rbutilqt.pro b/rbutil/rbutilqt/rbutilqt.pro
index 947ffe5ce9..a4cbb886e5 100644
--- a/rbutil/rbutilqt/rbutilqt.pro
+++ b/rbutil/rbutilqt/rbutilqt.pro
@@ -115,20 +115,19 @@ win32 {
     SOURCES +=  ../ipodpatcher/ipodio-win32.c
     SOURCES +=  ../sansapatcher/sansaio-win32.c
     RC_FILE = rbutilqt.rc
+    LIBS += -lsetupapi
 }
 
 unix {
     SOURCES +=  ../ipodpatcher/ipodio-posix.c
     SOURCES +=  ../sansapatcher/sansaio-posix.c
+    LIBS += -lusb
 }
 
 macx {
     QMAKE_MAC_SDK=/Developer/SDKs/MacOSX10.4u.sdk
     CONFIG+=x86 ppc
 }
-unix {
-    LIBS += -lusb
-}
 
 static {
     QTPLUGIN += qtaccessiblewidgets
-- 
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