parse_ascii.c

/*
 * Copyright (c) 2019. Yizhou Shan. All rights reserved.
 * Contact: syzwhat@gmail.com
 *
 * This file can parse the ultrascale+ bitstream files.
 */
#include <arpa/inet.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdbool.h>

#define ARRAY_SIZE(x)		(sizeof(x) / sizeof((x)[0]))

#define NR_BYTES_OF_ICAP	(4)

#define REG_CRC		0
#define REG_FAR		1
#define REG_FDRI	2

/*
 * This file can parse .rba and .rbt file
 * They are ASICC files.
 */
int main(int argc, char **argv)
{
    char *fname, *str_nr_words_to_parse;
    int ret;
    int i, nr_words, val;
    FILE *fp;
    char *line;
    size_t len;
    ssize_t nread;

    bool p_idcode = false;

    if (argc != 3) {
        printf("Usage: ./parse bitstream.rba nr_icap_words\n");
        exit(-1);
    }

    fname = argv[1];
    str_nr_words_to_parse = argv[2];

    fp = fopen(fname, "r");

    if (!fp) {
        printf("Fail to open: %s\n", fname);
        exit(-1);
    }

    nr_words = atoi(str_nr_words_to_parse);
    printf("File Name: %s\n", fname);

    if (nr_words == -1) {
        nr_words = INT_MAX;
    }

    len = 512;
    line = malloc(len);

    i = 0;

    while (i < nr_words) {
        nread = getline(&line, &len, fp);

        if (nread == -1) {
            goto done;
        }

        if (line[0] != '0' && line[0] != '1') {
            continue;
        }

        val = strtol(line, NULL, 2);

        //if (val != 0) {
        if (1) {
            printf("[%10d] %08x ", i, val);

            /*
             * Don't bother.
             * Just keep it ugly.
             */
            if (val == 0xaa995566) {
                printf(" SYNC\n");
            }
            else if (val == 0x000000BB) {
                printf("Bus Width Sync\n");
            }
            else if (val == 0x30002001) {
                printf("Write to FAR\n");
            }
            else if (val == 0x28006000) {
                printf("Read from FDRO\n");
            }
            else if (val == 0x30000001) {
                printf("Write to CRC\n");
            }
            else if (val == 0x30018001) {
                printf("Write to IDCODE\n");
                p_idcode = true;
            }
            else if (val == 0x11220044) {
                printf("Bus Width Detect\n");
            }
            else if (val == 0x30004000) {
                printf("Write to FDRI\n");
            }
            else if (val == 0x30008001) {
                printf("Write to CMD\n");
            }
            else if ((val & 0xf0000000) == 0x30000000) {
                int regs;

                regs = val & 0x0003E000;
                regs = regs >> 13;
                printf("Write to regs %d\n", regs);
            }
            else if (p_idcode) {
                printf("IDCODE=%x\n", val & 0x0FFFFFFF);
                p_idcode = false;
            }
            else {
                printf("\n");
            }
        }

        i++;
    }

done:
    return 0;
}