From 709236d92f4ff9508042d6762a235c6fe40df1ba Mon Sep 17 00:00:00 2001
From: robertl <robertl>
Date: Mon, 15 Sep 2008 06:42:24 +0000
Subject: [PATCH] Rough in Garmin protocol "file" support for Windows.  Crashes
 inside the XML parser, of all places.  Will recheck on Mac soon to ensure
 that recent UTF-8 changes didn't hose us.

---
 jeeps/gpsusbwin.c | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/jeeps/gpsusbwin.c b/jeeps/gpsusbwin.c
index c87e3de6e..b0b087c18 100644
--- a/jeeps/gpsusbwin.c
+++ b/jeeps/gpsusbwin.c
@@ -31,6 +31,7 @@
 #include "gpsapp.h"
 #include "garminusb.h"
 #include "gpsusbcommon.h"
+#include "../garmin_device_xml.h"
 
 /* Constants from Garmin doc. */
 
@@ -54,6 +55,7 @@ typedef struct {
 
 static HANDLE *usb_handle = INVALID_HANDLE_VALUE;
 static int usb_tx_packet_size ;
+static const gdx_info *gdx;
 
 static int 
 gusb_win_close(gpsdevh *handle)
@@ -182,6 +184,29 @@ HANDLE * garmin_usb_start(HDEVINFO* hdevinfo, SP_DEVICE_INTERFACE_DATA *infodata
 	return usb_handle;
 }
 
+
+static char ** get_garmin_mountpoints() {
+#define BUFSIZE 512
+  TCHAR szTemp[MAX_PATH];
+  char *p = szTemp;
+  char **dlist = xmalloc(0);
+  int i = 0;
+
+  fprintf(stderr, "eek!\n");
+  if (GetLogicalDriveStrings(BUFSIZE-1, szTemp)) 
+  {
+    while(*p) {
+      dlist = xrealloc(dlist, sizeof (*dlist ) * ++i);
+      //            fprintf(stderr, "Found: %d, %s\n", i, p);
+      dlist[i-1] = xstrdup(p);
+      dlist[i] = NULL;
+      while (*p++);
+    }
+  }
+
+  return dlist;
+}
+
 /*
  * Main entry point from the upper layer.   Walk the device tree, find our
  * device, and light it up.
@@ -224,8 +249,17 @@ gusb_init(const char *pname, gpsdevh **dh)
 		if (!SetupDiEnumDeviceInterfaces(hdevinfo, NULL, 
 				(GUID *) &GARMIN_GUID, 
 				req_unit_number, &devinterface)) {
+        // If there were zero matches, we may be trying to talk to a "GPX Mode" device.
+      
+   
+          char **dlist = get_garmin_mountpoints();
+          gdx = gdx_find_file(dlist);
+          if (gdx) return 1;
+       
+
+         // Plan C.
 			GPS_Serial_Error("SetupDiEnumDeviceInterfaces");
-			warning("Is the Garmin USB unit number %d powered up and connected?\nIs it really a USB unit?  If it's serial, don't choose USB, choose serial.\nAre the Garmin USB drivers installed and functioning with other programs?\nIs it a storage based device like Nuvi, CO, or OR?\n  If so, send GPX files to it, don't use this module.", un);
+			warning("Is the Garmin USB unit number %d powered up and connected?\nIs it really a USB unit?  If it's serial, don't choose USB, choose serial.\nAre the Garmin USB drivers installed and functioning with other programs?\nIs it a storage based device like Nuvi, CO, or OR?\n  If so, send GPX files to it, don't use this module.\n", un);
 			return 0;
 		}
 		/* We've matched.  Now start the specific unit. */
@@ -241,8 +275,10 @@ gusb_init(const char *pname, gpsdevh **dh)
 		if (!SetupDiEnumDeviceInterfaces(hdevinfo, NULL, 
 			(GUID *) &GARMIN_GUID, match, &devinterface)) {
 			if (GetLastError() == ERROR_NO_MORE_ITEMS) {
+ 
 				break;
 			} else {
+
 				GPS_Serial_Error("SetupDiEnumDeviceInterfaces");
 				warning("Is the Garmin USB unit number %d powered up and connected?", un);
 				return 0;
-- 
2.30.2