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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
/*--------------------------------------------------------------------------
*
* Motorola S-Record Format:
*
* Motorola S-Records are an industry-standard format for
* transmitting binary files to target systems and PROM
* programmers. LSI Logic have extended this standard to include
* an S4-record containing an address and a symbol.
*
* The extended S-record standard is as follows:
*
* S<type><length><address><data....><checksum>
* S4<length><address><name>,<checksum>
*
* Where:
*
* type
* is the record type. Where:
*
* 0 starting record (optional)
* 1 data record with 16-bit address
* 2 data record with 24-bit address
* 3 data record with 32-bit address
* 4 symbol record (LSI extension)
* 5 number of data records in preceeding block
* 6 unused
* 7 ending record for S3 records
* 8 ending record for S2 records
* 9 ending record for S1 records
*
* length
* is two hex characters. This defines the length of the
* record in bytes (not characters). It includes the address
* field, the data field, and the checksum field.
*
* address
* is 4, 6, or 8 characters. Corresponding to a 16-, 24-, or
* 32-bit address. The address field for S4 records is
* always 32 bits.
*
* data
*
* Are the data bytes. Each pair of hex characters represent
* one byte in memory.
*
* name
* Is the symbol name. The symbol is terminated by a ','.
*
* checksum
* Is the one's complement of the 8-bit checksum.
*
* Example
*
* S0030000FC
* .
* .
* S325000004403C0880018D08DD900000000011000026000000003C0880012508DC50C50000B401
* S32500000460C50100B8C50200BCC50300C0C50400C4C50500C8C50600CCC50700D0C50800D4FA
* S32500000480C50900D8C50A00DCC50B00E0C50C00E4C50D00E8C50E00ECC50F00F0C51000F49A
* S325000004A0C51100F8C51200FCC5130100C5140104C5150108C516010CC5170110C518011434
* .
* .
* S70500000000FA
*
* The S0 record starts the file. The S3 records contain the
* data. The S7 record contains the entry address and terminates
* the download.
*
*--------------------------------------------------------------------------
*/
#define SREC_START 0 /* Start Record (module name) */
#define SREC_DATA2 1 /* Data Record with 2 byte address */
#define SREC_DATA3 2 /* Data Record with 3 byte address */
#define SREC_DATA4 3 /* Data Record with 4 byte address */
#define SREC_COUNT 5 /* Count Record (previously transmitted) */
#define SREC_END4 7 /* End Record with 4 byte start address */
#define SREC_END3 8 /* End Record with 3 byte start address */
#define SREC_END2 9 /* End Record with 2 byte start address */
#define SREC_EMPTY 10 /* Empty Record without any data */
#define SREC_REC_OK SREC_EMPTY /* last code without error condition */
#define SREC_E_BADTYPE -1 /* no valid S-Record */
#define SREC_E_NOSREC -2 /* line format differs from s-record */
#define SREC_E_BADCHKS -3 /* checksum error in an s-record line */
#define SREC_MAXRECLEN (512 + 4) /* max ASCII record length */
#define SREC_MAXBINLEN 255 /* resulting binary length */
int srec_decode (char *input, int *count, ulong *addr, char *data);
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