[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[256];
    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;
    int value;

    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-w write\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); /* needed to determine EEPROM chip type */
        if (f < 0)
        {
            fprintf(stderr, "Erase failed: %s",
                    ftdi_get_error_string(ftdi));
            return -2;
        }
        if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
        {
            fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
                    f, ftdi_get_error_string(ftdi));
        }
        if (value == -1)
            fprintf(stderr, "No EEPROM\n");
        else if (value == 0)
            fprintf(stderr, "Internal EEPROM\n");
        else
            fprintf(stderr, "Found 93x%02x\n", value);
        return 0;
    }

    if (use_defaults)
    {
        ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAG", "0001");
        if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
        {
            fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
                    f, ftdi_get_error_string(ftdi));
        }
        if (large_chip)
            if (ftdi_set_eeprom_value(ftdi, CHIP_TYPE, 0x66) <0)
            {
                fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
                        f, ftdi_get_error_string(ftdi));
            }
        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");
        f = ftdi_erase_eeprom(ftdi);
        if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
        {
            fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
                    f, ftdi_get_error_string(ftdi));
        }
        f = ftdi_erase_eeprom(ftdi);/* needed to determine EEPROM chip type */
        if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
        {
            fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
                    f, ftdi_get_error_string(ftdi));
        }
        if (value == -1)
            fprintf(stderr, "No EEPROM\n");
        else if (value == 0)
            fprintf(stderr, "Internal EEPROM\n");
        else
            fprintf(stderr, "Found 93x%02x\n", value);
        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);
    }


    ftdi_get_eeprom_value(ftdi, CHIP_SIZE, & value);
    if (value <0)
    {
        fprintf(stderr, "No EEPROM found\n");
        return -1;

    }
    fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, value);
    if (ftdi->type == TYPE_R)
        size = 0xa0;
    else
        size = value;
    ftdi_get_eeprom_buf(ftdi, buf, 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
	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	{
	16	struct ftdi_context *ftdi;
	17	unsigned char buf[256];
	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;
	24	int use_defaults = 0;
	25	int large_chip = 0;
	26	int do_write = 0;
	27	int size;
	28	int value;
	29
	30	if ((ftdi = ftdi_new()) == 0)
	31	{
	32	fprintf(stderr, "Failed to allocate ftdi structure :%s \n",
	33	ftdi_get_error_string(ftdi));
	34	return EXIT_FAILURE;
	35	}
	36
	37	while ((i = getopt(argc, argv, "d::ev:p:l:P:S:w")) != -1)
	38	{
	39	switch (i)
	40	{
	41	case 'd':
	42	use_defaults = 1;
	43	if (optarg)
	44	large_chip = 0x66;
	45	break;
	46	case 'e':
	47	erase = 1;
	48	break;
	49	case 'v':
	50	vid = strtoul(optarg, NULL, 0);
	51	break;
	52	case 'p':
	53	pid = strtoul(optarg, NULL, 0);
	54	break;
	55	case 'P':
	56	desc = optarg;
	57	break;
	58	case 'S':
	59	serial = optarg;
	60	break;
	61	case 'w':
	62	do_write = 1;
	63	break;
	64	default:
	65	fprintf(stderr, "usage: %s [options]\n", *argv);
	66	fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte "
	67	"EEPROM or for 256 Byte EEPROM if some [num] is given\n");
	68	fprintf(stderr, "\t-w write\n");
	69	fprintf(stderr, "\t-e erase\n");
	70	fprintf(stderr, "\t-v verbose decoding\n");
	71	fprintf(stderr, "\t-p <number> Search for device with PID == number\n");
	72	fprintf(stderr, "\t-v <number> Search for device with VID == number\n");
	73	fprintf(stderr, "\t-P <string? Search for device with given "
	74	"product description\n");
	75	fprintf(stderr, "\t-S <string? Search for device with given "
	76	"serial number\n");
	77	exit(-1);
	78	}
	79	}
	80
	81	// Select first interface
	82	ftdi_set_interface(ftdi, INTERFACE_ANY);
	83
	84	// Open device
	85	f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial);
	86	if (f < 0)
	87	{
	88	fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid);
	89	if (desc)
	90	fprintf(stderr, " Desc %s", desc);
	91	if (serial)
	92	fprintf(stderr, " Serial %s", serial);
	93	fprintf(stderr, "\n");
	94	fprintf(stderr, "unable to open ftdi device: %d (%s)\n",
	95	f, ftdi_get_error_string(ftdi));
	96
	97	exit(-1);
	98	}
	99
	100	if (erase)
	101	{
	102	f = ftdi_erase_eeprom(ftdi); /* needed to determine EEPROM chip type */
	103	if (f < 0)
	104	{
	105	fprintf(stderr, "Erase failed: %s",
	106	ftdi_get_error_string(ftdi));
	107	return -2;
	108	}
	109	if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
	110	{
	111	fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
	112	f, ftdi_get_error_string(ftdi));
	113	}
	114	if (value == -1)
	115	fprintf(stderr, "No EEPROM\n");
	116	else if (value == 0)
	117	fprintf(stderr, "Internal EEPROM\n");
	118	else
	119	fprintf(stderr, "Found 93x%02x\n", value);
	120	return 0;
	121	}
	122
	123	if (use_defaults)
	124	{
	125	ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAG", "0001");
	126	if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
	127	{
	128	fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
	129	f, ftdi_get_error_string(ftdi));
	130	}
	131	if (large_chip)
	132	if (ftdi_set_eeprom_value(ftdi, CHIP_TYPE, 0x66) <0)
	133	{
	134	fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
	135	f, ftdi_get_error_string(ftdi));
	136	}
	137	f=(ftdi_eeprom_build(ftdi));
	138	if (f < 0)
	139	{
	140	fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n",
	141	f, ftdi_get_error_string(ftdi));
	142	exit(-1);
	143	}
	144	}
	145	else if (do_write)
	146	{
	147	ftdi_eeprom_initdefaults(ftdi, "IKDA", "FTDIJTAG", "0001");
	148	f = ftdi_erase_eeprom(ftdi);
	149	if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0)
	150	{
	151	fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n",
	152	f, ftdi_get_error_string(ftdi));
	153	}
	154	f = ftdi_erase_eeprom(ftdi);/* needed to determine EEPROM chip type */
	155	if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0)
	156	{
	157	fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n",
	158	f, ftdi_get_error_string(ftdi));
	159	}
	160	if (value == -1)
	161	fprintf(stderr, "No EEPROM\n");
	162	else if (value == 0)
	163	fprintf(stderr, "Internal EEPROM\n");
	164	else
	165	fprintf(stderr, "Found 93x%02x\n", value);
	166	f=(ftdi_eeprom_build(ftdi));
	167	if (f < 0)
	168	{
	169	fprintf(stderr, "Erase failed: %s",
	170	ftdi_get_error_string(ftdi));
	171	return -2;
	172	}
	173	f = ftdi_write_eeprom(ftdi);
	174	{
	175	fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
	176	f, ftdi_get_error_string(ftdi));
	177	exit(-1);
	178	}
	179	}
	180	f = ftdi_read_eeprom(ftdi);
	181	if (f < 0)
	182	{
	183	fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n",
	184	f, ftdi_get_error_string(ftdi));
	185	exit(-1);
	186	}
	187
	188
	189	ftdi_get_eeprom_value(ftdi, CHIP_SIZE, & value);
	190	if (value <0)
	191	{
	192	fprintf(stderr, "No EEPROM found\n");
	193	return -1;
	194
	195	}
	196	fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, value);
	197	if (ftdi->type == TYPE_R)
	198	size = 0xa0;
	199	else
	200	size = value;
	201	ftdi_get_eeprom_buf(ftdi, buf, size);
	202	for (i=0; i < size; i += 16)
	203	{
	204	fprintf(stdout,"0x%03x:", i);
	205
	206	for (j = 0; j< 8; j++)
	207	fprintf(stdout," %02x", buf[i+j]);
	208	fprintf(stdout," ");
	209	for (; j< 16; j++)
	210	fprintf(stdout," %02x", buf[i+j]);
	211	fprintf(stdout," ");
	212	for (j = 0; j< 8; j++)
	213	fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	214	fprintf(stdout," ");
	215	for (; j< 16; j++)
	216	fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.');
	217	fprintf(stdout,"\n");
	218	}
	219
	220	f = ftdi_eeprom_decode(ftdi, 1);
	221	if (f < 0)
	222	{
	223	fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n",
	224	f, ftdi_get_error_string(ftdi));
	225	exit(-1);
	226	}
	227
	228	ftdi_usb_close(ftdi);
	229	ftdi_free(ftdi);
	230	return 0;
	231	}