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src/system/mtdutils: Add files from mtd-utils

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- based on mtd-utils http://git.infradead.org/mtd-utils.git
 commit ab8c6fb93ce9db0f09401c4b819b0b277dc00340 (2013-07-01)
- Add files for create jffs2 image and using sumtool
- Creating classes for mkfs.jffs2 and sumtool


Origin commit data
------------------
Commit: d8957d17ac
Author: Michael Liebmann <tuxcode.bbg@gmail.com>
Date: 2013-09-01 (Sun, 01 Sep 2013)

Origin message was:
------------------
src/system/mtdutils: Add files from mtd-utils

- based on mtd-utils http://git.infradead.org/mtd-utils.git
 commit ab8c6fb93ce9db0f09401c4b819b0b277dc00340 (2013-07-01)
- Add files for create jffs2 image and using sumtool
- Creating classes for mkfs.jffs2 and sumtool
This commit is contained in:
Michael Liebmann
2013-09-01 17:57:41 +02:00
parent 1a4b568ceb
commit d87eeae5ce
33 changed files with 9672 additions and 0 deletions
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54
src/system/mtdutils/mcast_image.h Normal file
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#include <stdint.h>
#define PKT_SIZE 2820
struct image_pkt_hdr {
uint32_t resend;
uint32_t totcrc;
uint32_t nr_blocks;
uint32_t blocksize;
uint32_t block_crc;
uint32_t block_nr;
uint32_t pkt_sequence;
uint16_t pkt_nr;
uint16_t nr_pkts;
uint32_t thislen;
uint32_t thiscrc;
};
struct image_pkt {
struct image_pkt_hdr hdr;
unsigned char data[PKT_SIZE];
};
struct fec_parms;
/* k - number of actual data packets
* n - total number of packets including data and redundant packets
* (actual packet size isn't relevant here) */
struct fec_parms *fec_new(int k, int n);
void fec_free(struct fec_parms *p);
/* src - array of (n) pointers to data packets
* fec - buffer for packet to be generated
* index - index of packet to be generated (0 <= index < n)
* sz - data packet size
*
* _linear version just takes a pointer to the raw data; no
* mucking about with packet pointers.
*/
void fec_encode(struct fec_parms *code, unsigned char *src[],
unsigned char *fec, int index, int sz);
void fec_encode_linear(struct fec_parms *code, unsigned char *src,
unsigned char *fec, int index, int sz);
/* data - array of (k) pointers to data packets, in arbitrary order (see i)
* i - indices of (data) packets
* sz - data packet size
*
* Will never fail as long as you give it (k) individual data packets.
* Will re-order the (data) pointers but not the indices -- data packets
* are ordered on return.
*/
int fec_decode(struct fec_parms *code, unsigned char *data[],
int i[], int sz);