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Refactoring of BigBuf handling in order to prepare for more efficient memory allocation and longer traces.

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This commit is contained in:
pwpiwi 2015-01-16 11:00:17 +01:00
commit 117d9ec25c
14 changed files with 251 additions and 164 deletions
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43
armsrc/apps.h
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@ -17,50 +17,10 @@
#include "common.h"
#include "hitag2.h"
#include "mifare.h"
#include "../common/crc32.h"
// The large multi-purpose buffer, typically used to hold A/D samples,
// maybe processed in some way.
#define BIGBUF_SIZE 40000
uint32_t BigBuf[BIGBUF_SIZE / sizeof(uint32_t)];
#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)
/*
The statements above translates into this :
BIGBUF_SIZE = 40000
TRACE_OFFSET = 0
TRACE_SIZE = 3000
RECV_CMD_OFFSET = 3000
MAX_FRAME_SIZE = 256
MAX_PARITY_SIZE = 32
RECV_CMD_PAR_OFFSET = 3256
RECV_RESP_OFFSET = 3288
RECV_RESP_PAR_OFFSET= 3544
CARD_MEMORY_OFFSET = 3576
CARD_MEMORY_SIZE = 4096
DMA_BUFFER_OFFSET = 3576
DMA_BUFFER_SIZE = 4096
FREE_BUFFER_OFFSET = 7672
FREE_BUFFER_SIZE = 32327
*/
#include "BigBuf.h"
extern const uint8_t OddByteParity[256];
extern uint8_t *trace; // = (uint8_t *) BigBuf;
extern int traceLen; // = 0;
extern int rsamples; // = 0;
extern int tracing; // = TRUE;
extern uint8_t trigger;
@ -88,7 +48,6 @@ void SnoopLFRawAdcSamples(int divisor, int trigger_threshold);
void DoAcquisition125k(int trigger_threshold);
extern int ToSendMax;
extern uint8_t ToSend[];
extern uint32_t BigBuf[];
/// fpga.h
void FpgaSendCommand(uint16_t cmd, uint16_t v);