motion: cleanup include file

Use test_export_static for static variable/function that needs to by
used by tests/motion_lid.c

BRANCH=smaug
BUG=none
TEST=Compile, make buildall -j

Change-Id: I2f3eb72ce319622842885be9125b91e58f47133a
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/311754
Reviewed-by: Alec Berg <alecaberg@chromium.org>

common/motion_sense.c

@@ -34,7 +34,7 @@
 /*
  * Sampling interval for measuring acceleration and calculating lid angle.
  */
-unsigned int motion_interval;
+test_export_static unsigned int motion_interval;
 
 /* Delay between FIFO interruption. */
 static unsigned int motion_int_interval;
@@ -62,7 +62,7 @@ static struct mutex g_sensor_mutex;
 /*
  * Current power level (S0, S3, S5, ...)
  */
-enum chipset_state_mask sensor_active;
+test_export_static enum chipset_state_mask sensor_active;
 
 #ifdef CONFIG_ACCEL_FIFO
 /* Need to wake up the AP */
@@ -296,7 +296,7 @@ static int motion_sense_ec_rate(struct motion_sensor_t *sensor)
  *
  * Note: Not static to be tested.
  */
-int motion_sense_set_motion_intervals(void)
+static int motion_sense_set_motion_intervals(void)
 {
 	int i, sensor_ec_rate, ec_rate = 0, ec_int_rate_ms = 0, wake_up = 0;
 	struct motion_sensor_t *sensor;

include/motion_sense.h

@@ -135,11 +135,6 @@ struct motion_sensor_t {
 extern struct motion_sensor_t motion_sensors[];
 extern const unsigned motion_sensor_count;
 
-/* For testing purposes: export the sampling interval. */
-extern enum chipset_state_mask sensor_active;
-extern unsigned motion_interval;
-int motion_sense_set_motion_intervals(void);
-
 /*
  * Priority of the motion sense resume/suspend hooks, to be sure associated
  * hooks are scheduled properly.

test/motion_lid.c

@@ -19,6 +19,8 @@
 #include "timer.h"
 #include "util.h"
 
+extern enum chipset_state_mask sensor_active;
+extern unsigned motion_interval;
 
 /*
  * Period in us for the motion task period.