Function set_chipdensity

util/ifdtool/ifdtool.c:1327–1382

}

static void set_chipdensity(const char *filename, char *image, int size,
			    unsigned int density)
{
	struct fcba *fcba = find_fcba(image, size);
	uint8_t mask, chip2_offset;
	if (!fcba)
		exit(EXIT_FAILURE);

	printf("Setting chip density to ");
	decode_component_density(density);
	printf("\n");

	switch (ifd_version) {
	case IFD_VERSION_1:
		/* fail if selected density is not supported by this version */
		if ( (density == COMPONENT_DENSITY_32MB) ||
		     (density == COMPONENT_DENSITY_64MB) ||
		     (density == COMPONENT_DENSITY_UNUSED) ) {
			printf("error: Selected density not supported in IFD version 1.\n");
			exit(EXIT_FAILURE);
		}
		mask = 0x7;
		chip2_offset = 3;
		break;
	case IFD_VERSION_1_5:
	case IFD_VERSION_2:
		mask = 0xf;
		chip2_offset = 4;
		break;
	default:
		printf("error: Unknown IFD version\n");
		exit(EXIT_FAILURE);
		break;
	}

	/* clear chip density for corresponding chip */
	switch (selected_chip) {
	case 1:
		fcba->flcomp &= ~mask;
		break;
	case 2:
		fcba->flcomp &= ~(mask << chip2_offset);
		break;
	default: /*both chips*/
		fcba->flcomp &= ~(mask | (mask << chip2_offset));
		break;
	}

	/* set the new density */
	if (selected_chip == 1 || selected_chip == 0)
		fcba->flcomp |= (density); /* first chip */
	if (selected_chip == 2 || selected_chip == 0)
		fcba->flcomp |= (density << chip2_offset); /* second chip */

	write_image(filename, image, size);
}

static int check_region(const struct frba *frba, unsigned int region_type)