Function xs_FT6202

modules/drivers/ft6206/modFt6206.c:111–166

}

void xs_FT6202(xsMachine *the)
{
	ft6206 ft;
	uint8_t data[2];
	uint8_t err;

	ft = c_calloc(1, sizeof(ft6206Record));
	if (!ft) xsUnknownError("out of memory");
	xsmcSetHostData(xsThis, ft);

	xsmcVars(1);

	modI2CConfig(ft->i2c, MODDEF_FT6206_HZ, MODDEF_FT6206_SDA, MODDEF_FT6206_SCL, MODDEF_FT6206_ADDR, 250);
	modI2CInit(&ft->i2c);

	data[0] = FT6206_REG_VENDID;
	err = modI2CWrite(&ft->i2c, data, 1, false);
	if (err) xsUnknownError("write FT6206_REG_VENDID failed");
	err = modI2CRead(&ft->i2c, data, 1, true);
	if (err) xsUnknownError("read FT6206_REG_VENDID failed");
	if ((0 != data[0]) && (1 != data[0]) && (2 != data[0]) && (17 != data[0]) && (32 != data[0])) xsUnknownError("bad FT6206_REG_VENDID");

	data[0] = FT6206_REG_CHIPID;
	err = modI2CWrite(&ft->i2c, data, 1, false);
	if (err) xsUnknownError("write FT6206_REG_CHIPID failed");
	err = modI2CRead(&ft->i2c, data, 1, true);
	if (err) xsUnknownError("read FT6206_REG_CHIPID failed");
	if ((6 != data[0]) && (100 != data[0])) xsUnknownError("bad FT6206_REG_CHIPID");

	data[0] = FT6206_REG_THRESHHOLD;
	data[1] = MODDEF_FT6206_THRESHOLD;
	err = modI2CWrite(&ft->i2c, data, 2, true);
	if (err) xsUnknownError("write failed setting threshold");

	data[0] = FT6206_REG_CTRL;
	data[1] = 1;		// switch to monitor mode when no touch
	err = modI2CWrite(&ft->i2c, data, 2, true);
	if (err) xsUnknownError("write failed setting ctrl");

#if MODDEF_FT6206_CALIBRATE
	ft->min_x = MODDEF_FT6206_RAW_LEFT;
	ft->max_x = MODDEF_FT6206_RAW_RIGHT;
	ft->min_y = MODDEF_FT6206_RAW_TOP;
	ft->max_y = MODDEF_FT6206_RAW_BOTTOM;

	uint8_t prefType;
	int16_t values[4];
	uint16_t byteCountOut;
	if (modPreferenceGet("ft6206", "calibrate", &prefType, (uint8_t *)values, sizeof(values), &byteCountOut)) {
		ft->min_x = values[0];
		ft->max_x = values[1];
		ft->min_y = values[2];
		ft->max_y = values[3];
	}
#endif
}

void xs_FT6202_read(xsMachine *the)