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driver: bmi160: Allow double tap to be set by the host.

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In S0, allow the host to enable/disable double tap.
Set S0 accel frequency to 100Hz to track double tap event.

BRANCH=smaug
BUG=chrome-os-partner:44754
TEST=check CTS results are identical to previous runs.
Check we can enable/disable double tap from the host.

Change-Id: Ic36bdd77005a1152fd413fb3869c8a77ef680117
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/298685
This commit is contained in:
Gwendal Grignou
2015-09-08 10:00:10 -07:00
committed by chrome-bot
parent 8839b30b25
commit 241c2cb429
2 changed files with 30 additions and 9 deletions
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5
board/ryu/board.c
View File

@@ -298,13 +298,12 @@ struct motion_sensor_t motion_sensors[] = {
.odr = 0,
.ec_rate = 0,
},
/* EC needs accel for activity recognition. */
/* Used for double tap */
[SENSOR_CONFIG_EC_S0] = {
.odr = 12500,
.odr = 100000,
/* Interrupt driven, no polling */
.ec_rate = 0,
},
/* Used for double tap */
[SENSOR_CONFIG_EC_S3] = {
.odr = 100000,
.ec_rate = 0,

34
driver/accelgyro_bmi160.c
View File

@@ -645,7 +645,6 @@ int manage_activity(const struct motion_sensor_t *s,
#ifdef CONFIG_GESTURE_SIGMO
case MOTIONSENSE_ACTIVITY_SIG_MOTION: {
int tmp;
/* Set double tap interrupt and fifo*/
ret = raw_read8(s->addr, BMI160_INT_EN_0, &tmp);
if (ret)
return ret;
@@ -675,6 +674,23 @@ int manage_activity(const struct motion_sensor_t *s,
ret = EC_RES_UNAVAILABLE;
break;
}
#endif
#ifdef CONFIG_GESTURE_SENSOR_BATTERY_TAP
case MOTIONSENSE_ACTIVITY_DOUBLE_TAP: {
int tmp;
/* Set double tap interrupt */
ret = raw_read8(s->addr, BMI160_INT_EN_0, &tmp);
if (ret)
return ret;
if (enable)
tmp |= BMI160_INT_D_TAP_EN;
else
tmp &= ~BMI160_INT_D_TAP_EN;
ret = raw_write8(s->addr, BMI160_INT_EN_0, tmp);
if (ret)
ret = EC_RES_UNAVAILABLE;
break;
}
#endif
default:
ret = EC_RES_INVALID_PARAM;
@@ -765,10 +781,7 @@ static int config_interrupt(const struct motion_sensor_t *s)
BMI160_FIFO_HEADER_EN);
#endif
/* Set double tap interrupt and fifo*/
#ifdef CONFIG_GESTURE_SENSOR_BATTERY_TAP
ret = raw_write8(s->addr, BMI160_INT_EN_0, BMI160_INT_D_TAP_EN);
#endif
/* Set fifo*/
#ifdef CONFIG_ACCEL_FIFO
ret = raw_read8(s->addr, BMI160_INT_EN_1, &tmp);
tmp |= BMI160_INT_FWM_EN | BMI160_INT_FFUL_EN;
@@ -1052,6 +1065,10 @@ static int init(const struct motion_sensor_t *s)
data->disabled_activities |=
1 << MOTIONSENSE_ACTIVITY_SIG_MOTION;
#endif
#ifdef CONFIG_GESTURE_SENSOR_BATTERY_TAP
data->disabled_activities |=
1 << MOTIONSENSE_ACTIVITY_DOUBLE_TAP;
#endif
#endif
/* To avoid gyro wakeup */
raw_write8(s->addr, BMI160_PMU_TRIGGER, 0);
@@ -1135,10 +1152,15 @@ static int init(const struct motion_sensor_t *s)
set_range(s, s->default_range, 0);
if (s->type == MOTIONSENSE_TYPE_ACCEL) {
#ifdef CONFIG_ACCEL_INTERRUPTS
if (s->type == MOTIONSENSE_TYPE_ACCEL)
ret = config_interrupt(s);
#endif
#ifdef CONFIG_GESTURE_SENSOR_BATTERY_TAP
/* enable double tap, as soon as the chip is ready */
manage_activity(s, MOTIONSENSE_ACTIVITY_DOUBLE_TAP, 1, NULL);
#endif
}
CPRINTF("[%T %s: MS Done Init type:0x%X range:%d]\n",
s->name, s->type, get_range(s));
return ret;