Author: stevenhoneyman (http://www.stevenhoneyman.co.uk/2015/02/reconstructing-mtk-lcm-drivers.html)

lcmsplitter.c

/* Author: stevenhoneyman (http://www.stevenhoneyman.co.uk/2015/02/reconstructing-mtk-lcm-drivers.html) */

#include <stdio.h>

struct LCM_setting_table {
    unsigned int cmd; // 4 bytes
    unsigned char count; // 1 byte
    unsigned char para_list[66]; // 66 bytes
    // total size should be 71 for xc_rm68200 lcm
};

void print_hex_array(unsigned char *arr, int count)
{
    int i;
    for (i=0; i<count; i++) {
        printf("0x%02X", arr[i]);
        if (i<count-1) printf(",");
        if (i>=66) {
            printf(" *** BAD DATA *** ");
            break;
        }
    }
}
 
int main(int argc, char **argv)
{
    int c, err;
    FILE *ptr_file;
    struct LCM_setting_table lcmdata;
 
    if (argc<2) {
        printf("Usage: %s <filename>\n", argv[0]);
        return 1;
    }
 
    ptr_file=fopen(argv[1],"rb");
 
    if (!ptr_file) {
        printf("Failed to open file\n");
        return 1;
    }
 
    fseek(ptr_file, sizeof(struct LCM_setting_table), SEEK_END);
    rewind(ptr_file);
 
    while (fread(&lcmdata,sizeof(struct LCM_setting_table),1,ptr_file)) {
        printf("{0x%02X,%d,{", lcmdata.cmd, lcmdata.count);
        print_hex_array(lcmdata.para_list, lcmdata.count);
        printf("}},\n");
    }
 
    fclose(ptr_file);
    return 0;
}