/* initialize for touch & calibration */
int touch_calibration_init(void)
{
rt_uint8_t magic = 0;
calculate_data_t data;
struct rtgui_calibration_ops *ops;
ops = calibration_get_ops();
/* initialization the eeprom on chip */
EEPROM_Init();
/* initialization the touch driver */
rtgui_touch_hw_init("spi10");
/* set callback to save calibration data */
calibration_set_after(calibration_data_save);
/* initialization rtgui tonch server */
rtgui_touch_init(ops);
/* restore calibration data */
EEPROM_Read(0, CALIBRATION_DATA_PAGE, &magic, MODE_8_BIT, 1);
if (CALIBRATION_DATA_MAGIC != magic)
{
rt_kprintf("touch is not calibration,now calibration it please.\n");
calibration_init(RT_NULL);
}
else
{
EEPROM_Read(CALIBRATION_DATA_OFFSET, CALIBRATION_DATA_PAGE, &data, MODE_8_BIT, sizeof(calculate_data_t));
calibration_set_data(&data);
}
/* power down the EEPROM */
EEPROM_PowerDown(ENABLE);
return 0;
}
void test_last_point(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(400, get_calibration(200));
}
void test_above_bounds(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(0, get_calibration(201));
}
void test_interpolation(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(142, get_calibration(42));
}
void test_middle_point(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(200, get_calibration(100));
}
void test_first_point(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(100, get_calibration(0));
}
void test_below_bounds(void)
{
calibration_set_data(calibration_data);
TEST_ASSERT_EQUAL(0, get_calibration(-10));
}
void test_empty(void)
{
calibration_set_data(calibration_empty_data);
TEST_ASSERT_EQUAL(0, get_calibration(10));
}
