/*
 * This program reads a CP2102 EEPROM image from an Intel HEX file
 * and decodes the USB descriptors portion thereof.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include "cp210x_defs.h"

u_char eeprom[SIZE_EEPROM];

main(argc, argv)
	char **argv;
{
	if (argc != 2) {
		fprintf(stderr, "usage: %s ihex-file\n", argv[0]);
		exit(1);
	}
	read_intel_hex(argv[1]);
	printf("USB device descriptor at 0x3988:\n");
	printf("  bLength:            %u", eeprom[0x388]);
	if (eeprom[0x388] != 18)
		fputs(" (WRONG!)", stdout);
	putchar('\n');
	printf("  bDescriptorType:    0x%02X", eeprom[0x389]);
	if (eeprom[0x389] != 0x01)
		fputs(" (WRONG!)", stdout);
	putchar('\n');
	printf("  bcdUSB:             0x%02X%02X\n",
		eeprom[0x38B], eeprom[0x38A]);
	printf("  bDeviceClass:       0x%02X\n", eeprom[0x38C]);
	printf("  bDeviceSubClass:    0x%02X\n", eeprom[0x38D]);
	printf("  bDeviceProtocol:    0x%02X\n", eeprom[0x38E]);
	printf("  bMaxPacketSize0:    0x%02X\n", eeprom[0x38F]);
	printf("  idVendor:           0x%02X%02X\n",
		eeprom[0x391], eeprom[0x390]);
	printf("  idProduct:          0x%02X%02X\n",
		eeprom[0x393], eeprom[0x392]);
	printf("  bcdDevice:          0x%02X%02X\n",
		eeprom[0x395], eeprom[0x394]);
	printf("  iManufacturer:      %u\n", eeprom[0x396]);
	printf("  iProduct:           %u\n", eeprom[0x397]);
	printf("  iSerialNumber:      %u\n", eeprom[0x398]);
	printf("  bNumConfigurations: %u\n", eeprom[0x399]);
	/* decoding of other descriptors remains to be implemented */
	exit(0);
}