EttusResearch_uhd/mpm/tools/eeprom-set-flags.c

//
// Copyright 2017 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include "eeprom.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>

void usage(char* argv[])
{
    printf("-- Usage -- \n");
    printf("%s flags\n", argv[0]);
    printf("Example:\n");
    printf("$ %s 0x1\n", argv[0]);
}

int main(int argc, char* argv[])
{
    struct usrp_sulfur_eeprom* ep;
    u32 flags;

    if (argc != 2) {
        usage(argv);
        return EXIT_FAILURE;
    }

    errno = 0;
    flags = strtol(argv[1], NULL, 16);
    if (errno) {
        printf("Failed to convert flags, make sure you enter as hex\n");
        return EXIT_FAILURE;
    }

    ep = usrp_sulfur_eeprom_from_file(NVMEM_PATH_MB);
    if (!ep) {
        printf("eeprom not found\n");
        return EXIT_FAILURE;
    }

    usrp_sulfur_eeprom_print(ep);

    /* Set flag */
    ep->mcu_flags[0] = htonl(flags);
    usrp_sulfur_eeprom_recrc(ep);

    /* Write out to eeprom */
    usrp_sulfur_eeprom_to_i2c(ep, "/dev/i2c-2");
    free(ep);

    printf("-- Reading back \n");
    ep = usrp_sulfur_eeprom_from_file(NVMEM_PATH_MB);
    usrp_sulfur_eeprom_print(ep);
    free(ep);
}