X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9ab7a6c75566a2d06e56a8a97173c6382a3c5b3d..d19929cbe8d681b60496ca6d9d9cbd806822e163:/armsrc/fpgaloader.c

diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c
index 50a6521d..a719f5ed 100644
--- a/armsrc/fpgaloader.c
+++ b/armsrc/fpgaloader.c
@@ -1,9 +1,14 @@
 //-----------------------------------------------------------------------------
+// Jonathan Westhues, April 2006
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
 // Routines to load the FPGA image, and then to configure the FPGA's major
 // mode once it is configured.
-//
-// Jonathan Westhues, April 2006
 //-----------------------------------------------------------------------------
+
 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
@@ -131,13 +136,20 @@ void FpgaSetupSsc(void)
 // ourselves, not to another buffer). The stuff to manipulate those buffers
 // is in apps.h, because it should be inlined, for speed.
 //-----------------------------------------------------------------------------
-void FpgaSetupSscDma(uint8_t *buf, int len)
+bool FpgaSetupSscDma(uint8_t *buf, int len)
 {
+	if (buf == NULL) {
+        return false;
+    }
+
+	AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
 	AT91C_BASE_PDC_SSC->PDC_RPR = (uint32_t) buf;
 	AT91C_BASE_PDC_SSC->PDC_RCR = len;
 	AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) buf;
 	AT91C_BASE_PDC_SSC->PDC_RNCR = len;
 	AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN;
+    
+    return true;
 }
 
 static void DownloadFPGA_byte(unsigned char w)