Refactoring of BigBuf handling in order to prepare for more efficient memory allocati...

[proxmark3-svn] / armsrc / BigBuf.h

diff --git a/armsrc/BigBuf.h b/armsrc/BigBuf.h
new file mode 100644 (file)
index 0000000..0753527
--- /dev/null
+++ b/armsrc/BigBuf.h
@@ -0,0 +1,40 @@
+//-----------------------------------------------------------------------------
+// Jonathan Westhues, Aug 2005
+// Gerhard de Koning Gans, April 2008, May 2011
+//
+// 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.
+//-----------------------------------------------------------------------------
+// BigBuf and functions to allocate/free parts of it.
+//-----------------------------------------------------------------------------
+
+#ifndef __BIGBUF_H
+#define __BIGBUF_H
+
+
+#define BIGBUF_SIZE                            40000
+#define TRACE_OFFSET                   0
+#define TRACE_SIZE                             3000
+#define RECV_CMD_OFFSET                        (TRACE_OFFSET + TRACE_SIZE)
+#define MAX_FRAME_SIZE                 256
+#define MAX_PARITY_SIZE                        ((MAX_FRAME_SIZE + 1)/ 8)
+#define RECV_CMD_PAR_OFFSET            (RECV_CMD_OFFSET + MAX_FRAME_SIZE)
+#define RECV_RESP_OFFSET               (RECV_CMD_PAR_OFFSET + MAX_PARITY_SIZE)
+#define RECV_RESP_PAR_OFFSET   (RECV_RESP_OFFSET + MAX_FRAME_SIZE)
+#define CARD_MEMORY_OFFSET             (RECV_RESP_PAR_OFFSET + MAX_PARITY_SIZE)
+#define CARD_MEMORY_SIZE               4096    
+#define DMA_BUFFER_OFFSET              CARD_MEMORY_OFFSET
+#define DMA_BUFFER_SIZE                CARD_MEMORY_SIZE
+#define FREE_BUFFER_OFFSET             (CARD_MEMORY_OFFSET + CARD_MEMORY_SIZE)
+#define FREE_BUFFER_SIZE               (BIGBUF_SIZE - FREE_BUFFER_OFFSET - 1)
+
+extern uint8_t *BigBuf_get_addr(void);
+extern uint16_t BigBuf_max_trace_len(void);
+void BigBuf_Clear(void);
+extern uint8_t *BigBuf_malloc(uint16_t);
+extern void BigBuf_free(void);
+
+extern uint16_t traceLen;
+
+#endif /* __BIGBUF_H */