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

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pwpiwi 2015-01-16 11:00:17 +01:00
commit 117d9ec25c
14 changed files with 251 additions and 164 deletions
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armsrc/BigBuf.h Normal file
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//-----------------------------------------------------------------------------
// 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 */