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LibrePilot/flight/Bootloaders/OpenPilot/inc/ymodem.h

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/**
******************************************************************************
*
* @file ymodem.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief YModem functions header
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* 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 3 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 YMODEM_H
#define YMODEM_H
/* Global Defines */
#define PACKET_SEQNO_INDEX (1)
#define PACKET_SEQNO_COMP_INDEX (2)
#define PACKET_HEADER (3)
#define PACKET_TRAILER (2)
#define PACKET_OVERHEAD (PACKET_HEADER + PACKET_TRAILER)
#define PACKET_SIZE (128)
#define PACKET_1K_SIZE (1024)
#define FILE_NAME_LENGTH (256)
#define FILE_SIZE_LENGTH (16)
#define SOH (0x01) /* start of 128-byte data packet */
#define STX (0x02) /* start of 1024-byte data packet */
#define EOT (0x04) /* end of transmission */
#define ACK (0x06) /* acknowledge */
#define NAK (0x15) /* negative acknowledge */
#define CA (0x18) /* two of these in succession aborts transfer */
#define CRC16 (0x43) /* 'C' == 0x43, request 16-bit CRC */
#define ABORT1 (0x41) /* 'A' == 0x41, abort by user */
#define ABORT2 (0x61) /* 'a' == 0x61, abort by user */
#define NAK_TIMEOUT (0x100000)
#define MAX_ERRORS (5)
/* Global Macros */
#define IS_AF(c) ((c >= 'A') && (c <= 'F'))
#define IS_af(c) ((c >= 'a') && (c <= 'f'))
#define IS_09(c) ((c >= '0') && (c <= '9'))
#define ISVALIDHEX(c) IS_AF(c) || IS_af(c) || IS_09(c)
#define ISVALIDDEC(c) IS_09(c)
#define CONVERTDEC(c) (c - '0')
#define CONVERTHEX_alpha(c) (IS_AF(c) ? (c - 'A'+10) : (c - 'a'+10))
#define CONVERTHEX(c) (IS_09(c) ? (c - '0') : CONVERTHEX_alpha(c))
/* Public Functions */
extern int32_t Ymodem_Receive(uint8_t *buf);
#endif /* YMODEM_H */