X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/68410a4892c9679abc0e2cf3c9c1efb95651fa4f..0b53530a100fb2fdcee2e292423e2dc7f501e026:/armsrc/iclass.c

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 8c3be1f6..42deea86 100644
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -677,7 +677,11 @@ void RAMFUNC SnoopIClass(void)
     FpgaSetupSsc();
     upTo = dmaBuf;
     lastRxCounter = DMA_BUFFER_SIZE;
-    FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE);
+	// Setup and start DMA.
+	if ( !FpgaSetupSscDma((uint8_t*) dmaBuf, DMA_BUFFER_SIZE) ){
+		if (MF_DBGLEVEL > 1) Dbprintf("FpgaSetupSscDma failed. Exiting"); 
+		return;
+	}
 
     // And the reader -> tag commands
     memset(&Uart, 0, sizeof(Uart));
@@ -807,7 +811,7 @@ void RAMFUNC SnoopIClass(void)
 	Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
 
 done:
-    AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
+    FpgaDisableSscDma();
     Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt);
 	Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]);
 	LEDsoff();
@@ -1539,9 +1543,15 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples,
 			if (elapsed) (*elapsed)++;
 		}
 		if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-			if(c < timeout) { c++; } else { return FALSE; }
+			if(c < timeout)
+				c++;
+			else 
+				return FALSE;
+			
 			b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
+			
 			skip = !skip;
+			
 			if(skip) continue;
 		
 			if(ManchesterDecoding(b & 0x0f)) {