Linux upload and rescue tool for the JQ6500 MP3 player module
Check-in [bde3a708f9]
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Overview
Comment:cleanup
Downloads: Tarball | ZIP archive
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Files: files | file ages | folders
SHA1: bde3a708f908f00f024c6c2657633871a7d85203
User & Date: rmax 2017-01-23 15:04:35.789
Context
2017-01-23
16:28
Implement the force option check-in: fbedeafa99 user: rmax tags: trunk
15:04
cleanup check-in: bde3a708f9 user: rmax tags: trunk
2017-01-20
13:55
  • Implement raw mode
  • Implement writing to files
  • Allow specifying a write offset. This is useful for overwriting the CD image.
 check-in: 50ebed6eb3 user: rmax tags: trunk
Changes
Unified Diff Ignore Whitespace Patch
Changes to jq6500.c.
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#include <unistd.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>





#define JQ6500_CM




struct jqcmd {
    uint16_t j_cmd;
    uint32_t j_off;
    uint32_t j_foo;
    uint32_t j_len;
    uint16_t j_bar;
} __attribute__((packed));

#define FLASHSIZE 0x200000 /* 2MiB   */
#define BASE       0x40000 /* 256kiB */
#define MAXSIZE (FLASHSIZE - BASE)

off_t
filesize(char *file)
{
    int result;
    struct stat buf;
    result = stat(file, &buf);








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#include <unistd.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>

#define FLASHSIZE 0x200000 /* 2MiB   */
#define BASE       0x40000 /* 256kiB */
#define MAXSIZE (FLASHSIZE - BASE)

#define ERASE 0xfbd8
#define WRITE 0xfbd9
#define BLKSZ 0x1000
#define TIMEOUT 30000

struct jqcmd {
    uint16_t j_cmd;
    uint32_t j_off;
    uint32_t j_foo;
    uint32_t j_len;
    uint16_t j_bar;
} __attribute__((packed));

uint8_t buf[FLASHSIZE];
uint8_t force = 0;


off_t
filesize(char *file)
{
    int result;
    struct stat buf;
    result = stat(file, &buf);
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	   "  -s prefix   save the content of the pseudo file system on the device\n"
	   "              to a set of files named prefix-dirno-fileno\n"
	   "  -f          force operation (disable size checking).\n");
    
    exit(1);
}

uint8_t buf[FLASHSIZE];

int
mkjqfs(int count, char **files, int offset)
{
    int size, i, len;
    uint8_t *dir, *data;
    memset(buf, 0xff, FLASHSIZE);









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	   "  -s prefix   save the content of the pseudo file system on the device\n"
	   "              to a set of files named prefix-dirno-fileno\n"
	   "  -f          force operation (disable size checking).\n");
    
    exit(1);
}



int
mkjqfs(int count, char **files, int offset)
{
    int size, i, len;
    uint8_t *dir, *data;
    memset(buf, 0xff, FLASHSIZE);
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	w32le(&dir, offset + data - buf); /* File offset */
	w32le(&dir, len);                 /* File length */
	data += len;
    }
    return size;
}

#define ERASE 0xfbd8
#define WRITE 0xfbd9
#define BLKSZ 0x1000
#define TIMEOUT 30000

void
jqwrite(char *device, uint8_t *buf, int offset, int size)
{
    int dev, i;

    dev = open(device, O_RDWR);
    if (dev < 0)








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	w32le(&dir, offset + data - buf); /* File offset */
	w32le(&dir, len);                 /* File length */
	data += len;
    }
    return size;
}






void
jqwrite(char *device, uint8_t *buf, int offset, int size)
{
    int dev, i;

    dev = open(device, O_RDWR);
    if (dev < 0)
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