// Only used if power-saving is needed
void board_power_down_devices(void) {
#ifdef ENVIRONMENT_SENSOR
#ifdef LED1
LED1 = 0;
LED2 = 0;
#endif
#ifdef REPORT_TYPE_LIGHT
light_sleep();
#endif
#ifdef REPORT_TYPE_GYRO
gyro_sleep();
#endif
#ifdef REPORT_TYPE_ACCEL
accel_sleep();
#endif
#ifdef REPORT_TYPE_HUMID
humid_sleep();
#endif
pir_sleep();
datalink_sleep();
#endif
}
uint8
accel_read_state(int *x, int *y, int *z)
{
struct i2c_msg msgs[2];
signed char values[6];
uint8 addr = 0x00; /* 10-bits read value */
uint8 result = 0;
accel_wakeup();
while (!accel_ready())
delay_us(1000);
msgs[0].addr = ACCEL_ADDR;
msgs[0].length = sizeof(byte);
msgs[0].data = &addr;
msgs[0].flags = 0;
msgs[1].addr = ACCEL_ADDR;
msgs[1].length = sizeof(values);
msgs[1].data = (uint8 *)values;
msgs[1].flags = I2C_MSG_READ;
if (switch_state(&back_switch))
result = i2c_master_xfer(i2c, msgs, 2, 1);
if (x)
*x = (values[1]<<2) | (values[0]);
if (y)
*y = (values[3]<<2) | (values[2]);
if (z)
*z = (values[5]<<2) | (values[4]);
accel_sleep();
return result;
}