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bfb
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bfb.h
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C/C++ Source or Header
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2006-05-08
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4KB
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126 lines
/*
* bfb/bfb.h
*
* Copyright (c) 2002 Christian W. Zuckschwerdt <zany@triq.net>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef BFB_H
#define BFB_H
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _WIN32
#include <windows.h>
typedef HANDLE fd_t;
#else
typedef int fd_t;
#endif
#define BFB_LOG_DOMAIN "bfb"
typedef struct {
uint8_t type;
uint8_t len;
uint8_t chk;
uint8_t payload[0]; /* ... up to 32 */
/* uint8_t xor; ? */
} bfb_frame_t;
typedef struct {
uint8_t cmd;
uint8_t chk;
uint8_t seq;
uint8_t len0;
uint8_t len1;
uint8_t data[0]; /* ... up to 518 ? */
/* uint16_t crc; */
} bfb_data_t;
#define BFB_FRAME_CONNECT 0x02 /* ^B */
#define BFB_FRAME_INTERFACE 0x01 /* ^A */
#define BFB_FRAME_KEY 0x05 /* ^E */
#define BFB_FRAME_AT 0x06 /* ^F */
#define BFB_FRAME_EEPROM 0x14 /* ^N */
#define BFB_FRAME_DATA 0x16 /* ^P */
#define BFB_CONNECT_HELLO 0x14 /* ^N */
#define BFB_CONNECT_HELLO_ACK 0xaa
#define BFB_KEY_PRESS 0x06 /* ^F */
#define MAX_PACKET_DATA 32
#define BFB_DATA_ACK 0x01 /* aka ok */
#define BFB_DATA_FIRST 0x02 /* first transmission in a row */
#define BFB_DATA_NEXT 0x03 /* continued transmission */
uint8_t bfb_checksum(uint8_t *data, int len);
int bfb_write_subcmd(fd_t fd, uint8_t type, uint8_t subtype);
int bfb_write_subcmd0(fd_t fd, uint8_t type, uint8_t subtype);
int bfb_write_subcmd8(fd_t fd, uint8_t type, uint8_t subtype, uint8_t p1);
int bfb_write_subcmd1(fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1);
/* send a cmd, subcmd packet, add chk (two word parameter) */
int bfb_write_subcmd2(fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1, uint16_t p2);
/* send a cmd, subcmd packet, add chk (three word parameter) */
int bfb_write_subcmd3(fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1, uint16_t p2, uint16_t p3);
/* send a cmd, subcmd packet, add long, word parameter */
int bfb_write_subcmd_lw(fd_t fd, uint8_t type, uint8_t subtype, uint32_t p1, uint16_t p2);
int bfb_stuff_data(/*@out@*/ uint8_t *buffer, uint8_t type, uint8_t *data, uint16_t len, uint8_t seq);
int bfb_write_packets(fd_t fd, uint8_t type, uint8_t *buffer, int length);
#define bfb_write_at(fd, data) \
bfb_write_packets(fd, BFB_FRAME_AT, data, strlen(data))
#define bfb_write_key(fd, data) \
bfb_write_subcmd8(fd, BFB_FRAME_KEY, BFB_KEY_PRESS, data)
int bfb_send_data(fd_t fd, uint8_t type, uint8_t *data, uint16_t length, uint8_t seq);
#define bfb_send_ack(fd) \
bfb_send_data(fd, BFB_DATA_ACK, NULL, 0, 0)
#define bfb_send_first(fd, data, length) \
bfb_send_data(fd, BFB_DATA_FIRST, data, length, 0)
#define bfb_send_next(fd, data, length, seq) \
bfb_send_data(fd, BFB_DATA_NEXT, data, length, seq)
/*@null@*/ bfb_frame_t *
bfb_read_packets(uint8_t *buffer, int *length);
int bfb_assemble_data(/*@null@*/ /*@out@*/ bfb_data_t **data, int *size, int *len, bfb_frame_t *frame);
int bfb_check_data(bfb_data_t *data, int len);
#ifdef __cplusplus
}
#endif
#endif /* BFB_H */