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driver: bmi160: Add config variable for INT2 setting

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BMI INT2 can be input or output.
It is not used currently, but configure it properly nevertheless.

BUG=none
BRANCH=none
TEST=On cave, (int2 is output), ensure FIFO headers are free of
interrupt information.

Change-Id: I9c058689a8676593aad542e33601cc11da105838
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/394066
This commit is contained in:
Gwendal Grignou
2016-10-05 14:17:49 -07:00
committed by chrome-bot
parent afcfb4b998
commit 0ea4603143
2 changed files with 13 additions and 8 deletions
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18
driver/accelgyro_bmi160.c
View File

@@ -793,12 +793,16 @@ static int config_interrupt(const struct motion_sensor_t *s)
BMI160_TAP_TH(s, CONFIG_GESTURE_TAP_THRES_MG));
#endif
/*
* configure int2 as an external input.
* Set a 5ms latch to be sure the EC can read the interrupt register
* properly, even when it is running more slowly.
*/
#ifdef CONFIG_ACCELGYRO_BMI160_INT2_OUTPUT
ret = raw_write8(s->port, s->addr, BMI160_INT_LATCH, BMI160_LATCH_5MS);
#else
/* Also, configure int2 as an external input. */
ret = raw_write8(s->port, s->addr, BMI160_INT_LATCH,
BMI160_INT2_INPUT_EN | BMI160_LATCH_5MS);
#endif
/* configure int1 as an interupt */
ret = raw_write8(s->port, s->addr, BMI160_INT_OUT_CTRL,
@@ -823,10 +827,14 @@ static int config_interrupt(const struct motion_sensor_t *s)
/* configure fifo watermark at 50% */
ret = raw_write8(s->port, s->addr, BMI160_FIFO_CONFIG_0,
512 / sizeof(uint32_t));
#ifdef CONFIG_ACCELGYRO_BMI160_INT2_OUTPUT
ret = raw_write8(s->port, s->addr, BMI160_FIFO_CONFIG_1,
BMI160_FIFO_HEADER_EN);
#else
ret = raw_write8(s->port, s->addr, BMI160_FIFO_CONFIG_1,
BMI160_FIFO_TAG_INT1_EN |
BMI160_FIFO_TAG_INT2_EN |
BMI160_FIFO_HEADER_EN);
#endif
/* Set fifo*/
ret = raw_read8(s->port, s->addr, BMI160_INT_EN_1, &tmp);
@@ -932,12 +940,6 @@ static int bmi160_decode_header(struct motion_sensor_t *s,
*bp += (i == MOTIONSENSE_TYPE_MAG ? 8 : 6);
}
}
#if 0
if (hdr & BMI160_FH_EXT_MASK)
CPRINTF("%s%s\n",
(hdr & 0x1 ? "INT1" : ""),
(hdr & 0x2 ? "INT2" : ""));
#endif
return 1;
} else {
return 0;

3
include/config.h
View File

@@ -82,6 +82,9 @@
*/
#undef CONFIG_ACCELGYRO_BMI160_INT_EVENT
/* Set when INT2 is an ouptut */
#undef CONFIG_ACCELGYRO_BMI160_INT2_OUTPUT
/* Specify type of Gyrometers attached. */
#undef CONFIG_GYRO_L3GD20H