[libftdi] / examples / eeprom.c

/* LIBFTDI EEPROM access example

   This program is distributed under the GPL, version 2
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <getopt.h>
#include <ftdi.h>

int main(int argc, char **argv)
{
    struct ftdi_context *ftdi;
    unsigned char *buf;
    int f, i, j;
    int vid = 0x0403;
    int pid = 0x6010;
    char const *desc    = 0;
    char const *serial  = 0;
    int erase = 0;
    int use_defaults = 0;
    int large_chip = 0;
    int do_write = 0;
    int size;

    if ((ftdi = ftdi_new()) == 0)
    {
       fprintf(stderr, "Failed to allocate ftdi structure :%s \n", 
		   ftdi_get_error_string(ftdi));
        return EXIT_FAILURE;
    }

    while ((i = getopt(argc, argv, "d::ev:p:l:P:S:w")) != -1)
    {
        switch (i)
        {
        case 'd':
            use_defaults = 1;
            if(optarg)
                large_chip = 0x66; 
            break;
        case 'e':
            erase = 1;
            break;
        case 'v':
		vid = strtoul(optarg, NULL, 0);
		break;
	case 'p':
		pid = strtoul(optarg, NULL, 0);
		break;
	case 'P':
                desc = optarg;
		break;
	case 'S':
		serial = optarg;
		break;
	case 'w':
		do_write  = 1;
		break;
	default:
		fprintf(stderr, "usage: %s [options]\n", *argv);
		fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte "
                        "EEPROM or for 256 Byte EEPROm if some [num] is given\n");
		fprintf(stderr, "\t-e erase\n");
		fprintf(stderr, "\t-v verbose decoding\n");
		fprintf(stderr, "\t-p <number> Search for device with PID == number\n");
		fprintf(stderr, "\t-v <number> Search for device with VID == number\n");
		fprintf(stderr, "\t-P <string? Search for device with given "
                        "product description\n");
		fprintf(stderr, "\t-S <string? Search for device with given "
                        "serial number\n");
		exit(-1);
        }
    }

    // Select first interface
    ftdi_set_interface(ftdi, INTERFACE_ANY);

    // Open device
    f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial);
    if (f < 0)
    {
        fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid);
        if(desc)
            fprintf(stderr, " Desc %s", desc);
        if(serial)
            fprintf(stderr, " Serial %s", serial);
        fprintf(stderr, "\n");
        fprintf(stderr, "unable to open ftdi device: %d (%s)\n", 
		f, ftdi_get_error_string(ftdi));

        exit(-1);
    }

    if (erase)
    {
        f = ftdi_erase_eeprom(ftdi);
        if (f < 0)
        {
            fprintf(stderr, "Erase failed: %s", 
                    ftdi_get_error_string(ftdi));
            return -2;
        }
        if (ftdi->eeprom->chip == -1)
            fprintf(stderr, "No EEPROM\n");
        else if (ftdi->eeprom->chip == 0)
            fprintf(stderr, "Internal EEPROM\n");
        else
            fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip);
        return 0;
    }        

    if(use_defaults)
    {
        ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAF", "0001");
        ftdi->eeprom->max_power = 500;
        f=(ftdi_eeprom_build(ftdi));
        if (f < 0)
        {
            fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n", 
                    f, ftdi_get_error_string(ftdi));
            exit(-1);
        }
    }
    else if(do_write)
    {
        ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAG", "0001");
        ftdi->eeprom->max_power = 500;
        f = ftdi_erase_eeprom(ftdi);
        if (ftdi->eeprom->chip == -1)
            fprintf(stderr, "No EEPROM\n");
        else if (ftdi->eeprom->chip == 0)
            fprintf(stderr, "Internal EEPROM\n");
        else
            fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip);
        f=(ftdi_eeprom_build(ftdi));
        if (f < 0)
        {
            fprintf(stderr, "Erase failed: %s", 
                    ftdi_get_error_string(ftdi));
            return -2;
        }
        f = ftdi_write_eeprom(ftdi);
        {
            fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", 
                    f, ftdi_get_error_string(ftdi));
            exit(-1);
        }
        f = ftdi_read_eeprom(ftdi);
        if (f < 0)
        {
            fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n", 
                    f, ftdi_get_error_string(ftdi));
            exit(-1);
        }
     }
    else
    {
        f = ftdi_read_eeprom(ftdi);
        if (f < 0)
        {
            fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n", 
                    f, ftdi_get_error_string(ftdi));
            exit(-1);
        }
    }


    fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, ftdi->eeprom->size);
    buf = ftdi->eeprom->buf;
    if (ftdi->type == TYPE_R)
        size = 0xa0;
    else
        size = ftdi->eeprom->size;
    for(i=0; i < size; i += 16)
    {
	fprintf(stdout,"0x%03x:", i);
	
	for (j = 0; j< 8; j++)
	    fprintf(stdout," %02x", buf[i+j]);
	fprintf(stdout," ");
	for (; j< 16; j++)
	    fprintf(stdout," %02x", buf[i+j]);
	fprintf(stdout," ");
	for (j = 0; j< 8; j++)
	    fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	fprintf(stdout," ");
	for (; j< 16; j++)
	    fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	fprintf(stdout,"\n");
    }

    f = ftdi_eeprom_decode(ftdi, 1);
    if (f < 0)
    {
        fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", 
		f, ftdi_get_error_string(ftdi));
        exit(-1);
    }

    ftdi_usb_close(ftdi);
    ftdi_free(ftdi);
    return 0;
}
Commit	Line	Data
2db3a766 UB	1	/* LIBFTDI EEPROM access example
	2
	3	This program is distributed under the GPL, version 2
	4	*/
	5
	6	#include <stdio.h>
	7	#include <stdlib.h>
	8	#include <string.h>
	9	#include <ctype.h>
	10	#include <unistd.h>
	11	#include <getopt.h>
	12	#include <ftdi.h>
	13
	14	int main(int argc, char **argv)
	15	{
f38b0866	16	struct ftdi_context *ftdi;
a35aa9bd	17	unsigned char *buf;
2db3a766 UB	18	int f, i, j;
	19	int vid = 0x0403;
	20	int pid = 0x6010;
	21	char const *desc = 0;
	22	char const *serial = 0;
	23	int erase = 0;
4fb2ebbb	24	int use_defaults = 0;
2db3a766	25	int large_chip = 0;
0091182e	26	int do_write = 0;
a35aa9bd	27	int size;
2db3a766	28
f38b0866 UB	29	if ((ftdi = ftdi_new()) == 0)
f38b0866 UB	30	{
a35aa9bd UB	31	fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
a35aa9bd UB	32	ftdi_get_error_string(ftdi));
f38b0866 UB	33	return EXIT_FAILURE;
	34	}
	35
0091182e	36	while ((i = getopt(argc, argv, "d::ev:p:l:P:S:w")) != -1)
2db3a766 UB	37	{
	38	switch (i)
	39	{
	40	case 'd':
	41	use_defaults = 1;
	42	if(optarg)
	43	large_chip = 0x66;
	44	break;
	45	case 'e':
	46	erase = 1;
	47	break;
	48	case 'v':
	49	vid = strtoul(optarg, NULL, 0);
	50	break;
	51	case 'p':
	52	pid = strtoul(optarg, NULL, 0);
	53	break;
	54	case 'P':
	55	desc = optarg;
	56	break;
	57	case 'S':
	58	serial = optarg;
	59	break;
0091182e UB	60	case 'w':
	61	do_write = 1;
	62	break;
2db3a766 UB	63	default:
	64	fprintf(stderr, "usage: %s [options]\n", *argv);
	65	fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte "
	66	"EEPROM or for 256 Byte EEPROm if some [num] is given\n");
	67	fprintf(stderr, "\t-e erase\n");
	68	fprintf(stderr, "\t-v verbose decoding\n");
	69	fprintf(stderr, "\t-p <number> Search for device with PID == number\n");
	70	fprintf(stderr, "\t-v <number> Search for device with VID == number\n");
	71	fprintf(stderr, "\t-P <string? Search for device with given "
	72	"product description\n");
	73	fprintf(stderr, "\t-S <string? Search for device with given "
	74	"serial number\n");
	75	exit(-1);
	76	}
	77	}
	78
2db3a766	79	// Select first interface
f38b0866	80	ftdi_set_interface(ftdi, INTERFACE_ANY);
2db3a766 UB	81
2db3a766 UB	82	// Open device
f38b0866	83	f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial);
2db3a766 UB	84	if (f < 0)
	85	{
	86	fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid);
	87	if(desc)
	88	fprintf(stderr, " Desc %s", desc);
	89	if(serial)
	90	fprintf(stderr, " Serial %s", serial);
	91	fprintf(stderr, "\n");
	92	fprintf(stderr, "unable to open ftdi device: %d (%s)\n",
f38b0866	93	f, ftdi_get_error_string(ftdi));
2db3a766 UB	94
	95	exit(-1);
	96	}
	97
	98	if (erase)
	99	{
f38b0866	100	f = ftdi_erase_eeprom(ftdi);
2db3a766 UB	101	if (f < 0)
	102	{
	103	fprintf(stderr, "Erase failed: %s",
f38b0866	104	ftdi_get_error_string(ftdi));
2db3a766 UB	105	return -2;
2db3a766 UB	106	}
f38b0866	107	if (ftdi->eeprom->chip == -1)
2db3a766	108	fprintf(stderr, "No EEPROM\n");
f38b0866	109	else if (ftdi->eeprom->chip == 0)
2db3a766 UB	110	fprintf(stderr, "Internal EEPROM\n");
2db3a766 UB	111	else
f38b0866	112	fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip);
2db3a766 UB	113	return 0;
	114	}
	115
2db3a766 UB	116	if(use_defaults)
2db3a766 UB	117	{
0091182e UB	118	ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAF", "0001");
0091182e UB	119	ftdi->eeprom->max_power = 500;
a35aa9bd	120	f=(ftdi_eeprom_build(ftdi));
2db3a766 UB	121	if (f < 0)
	122	{
	123	fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n",
f38b0866	124	f, ftdi_get_error_string(ftdi));
2db3a766 UB	125	exit(-1);
	126	}
	127	}
0091182e UB	128	else if(do_write)
	129	{
	130	ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAG", "0001");
	131	ftdi->eeprom->max_power = 500;
	132	f = ftdi_erase_eeprom(ftdi);
	133	if (ftdi->eeprom->chip == -1)
	134	fprintf(stderr, "No EEPROM\n");
	135	else if (ftdi->eeprom->chip == 0)
	136	fprintf(stderr, "Internal EEPROM\n");
	137	else
	138	fprintf(stderr, "Found 93x%02x\n",ftdi->eeprom->chip);
	139	f=(ftdi_eeprom_build(ftdi));
	140	if (f < 0)
	141	{
	142	fprintf(stderr, "Erase failed: %s",
	143	ftdi_get_error_string(ftdi));
	144	return -2;
	145	}
	146	f = ftdi_write_eeprom(ftdi);
	147	{
	148	fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
	149	f, ftdi_get_error_string(ftdi));
	150	exit(-1);
	151	}
	152	f = ftdi_read_eeprom(ftdi);
	153	if (f < 0)
	154	{
	155	fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n",
	156	f, ftdi_get_error_string(ftdi));
	157	exit(-1);
	158	}
	159	}
2db3a766 UB	160	else
2db3a766 UB	161	{
a35aa9bd	162	f = ftdi_read_eeprom(ftdi);
2db3a766 UB	163	if (f < 0)
	164	{
	165	fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n",
f38b0866	166	f, ftdi_get_error_string(ftdi));
2db3a766 UB	167	exit(-1);
	168	}
	169	}
0091182e UB	170
0091182e UB	171
f38b0866	172	fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, ftdi->eeprom->size);
a35aa9bd UB	173	buf = ftdi->eeprom->buf;
	174	if (ftdi->type == TYPE_R)
	175	size = 0xa0;
	176	else
	177	size = ftdi->eeprom->size;
	178	for(i=0; i < size; i += 16)
2db3a766 UB	179	{
	180	fprintf(stdout,"0x%03x:", i);
	181
	182	for (j = 0; j< 8; j++)
	183	fprintf(stdout," %02x", buf[i+j]);
	184	fprintf(stdout," ");
	185	for (; j< 16; j++)
	186	fprintf(stdout," %02x", buf[i+j]);
	187	fprintf(stdout," ");
	188	for (j = 0; j< 8; j++)
	189	fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	190	fprintf(stdout," ");
	191	for (; j< 16; j++)
	192	fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	193	fprintf(stdout,"\n");
	194	}
	195
a35aa9bd	196	f = ftdi_eeprom_decode(ftdi, 1);
0091182e	197	if (f < 0)
2db3a766 UB	198	{
2db3a766 UB	199	fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
f38b0866	200	f, ftdi_get_error_string(ftdi));
2db3a766 UB	201	exit(-1);
2db3a766 UB	202	}
2db3a766	203
f38b0866 UB	204	ftdi_usb_close(ftdi);
f38b0866 UB	205	ftdi_free(ftdi);
0091182e	206	return 0;
2db3a766	207	}