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| author | Joey Castillo <joeycastillo@utexas.edu> | 2021-12-01 09:41:11 -0500 |
|---|---|---|
| committer | Joey Castillo <joeycastillo@utexas.edu> | 2021-12-01 09:41:48 -0500 |
| commit | 36be251e893a0f9c186e409952c06e93d1031f7d (patch) | |
| tree | e6298b80704d1e7f9756241d788aa899d0983c16 /watch-library | |
| parent | b60d63f2634358e50de4aa77aa2f3b567c94f7aa (diff) | |
| download | Sensor-Watch-36be251e893a0f9c186e409952c06e93d1031f7d.tar.gz Sensor-Watch-36be251e893a0f9c186e409952c06e93d1031f7d.tar.bz2 Sensor-Watch-36be251e893a0f9c186e409952c06e93d1031f7d.zip | |
lis2dh: add support for interrupt latching (stays active until cleared)
Diffstat (limited to 'watch-library')
| -rw-r--r-- | watch-library/driver/lis2dh.c | 8 | ||||
| -rw-r--r-- | watch-library/driver/lis2dh.h | 4 |
2 files changed, 8 insertions, 4 deletions
diff --git a/watch-library/driver/lis2dh.c b/watch-library/driver/lis2dh.c index 8266905f..21087bef 100644 --- a/watch-library/driver/lis2dh.c +++ b/watch-library/driver/lis2dh.c @@ -115,22 +115,26 @@ lis2dh_data_rate_t lis2dh_get_data_rate() { return watch_i2c_read8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL1) >> 4; } -void lis2dh_configure_aoi_int1(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration) { +void lis2dh_configure_aoi_int1(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration, bool latch) { watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL3, LIS2DH_CTRL3_VAL_I1_AOI1); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT1_CFG, configuration); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT1_THS, threshold); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT1_DUR, duration); + uint8_t val = watch_i2c_read8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL5) & 0xF7; + watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL5, val | latch ? LIS2DH_CTRL5_VAL_LIR_INT1 : 0); } lis2dh_interrupt_state lis2dh_get_int1_state() { return (lis2dh_interrupt_state) watch_i2c_read8(LIS2DH_ADDRESS, LIS2DH_REG_INT1_SRC); } -void lis2dh_configure_aoi_int2(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration) { +void lis2dh_configure_aoi_int2(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration, bool latch) { watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL6, LIS2DH_CTRL6_VAL_I2_INT2); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT2_CFG, configuration); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT2_THS, threshold); watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_INT2_DUR, duration); + uint8_t val = watch_i2c_read8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL5) & 0xFD; + watch_i2c_write8(LIS2DH_ADDRESS, LIS2DH_REG_CTRL5, val | latch ? LIS2DH_CTRL5_VAL_LIR_INT2 : 0); } lis2dh_interrupt_state lis2dh_get_int2_state() { diff --git a/watch-library/driver/lis2dh.h b/watch-library/driver/lis2dh.h index f3e7ec84..ddd42126 100644 --- a/watch-library/driver/lis2dh.h +++ b/watch-library/driver/lis2dh.h @@ -102,11 +102,11 @@ void lis2dh_set_data_rate(lis2dh_data_rate_t dataRate); lis2dh_data_rate_t lis2dh_get_data_rate(); -void lis2dh_configure_aoi_int1(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration); +void lis2dh_configure_aoi_int1(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration, bool latch); lis2dh_interrupt_state lis2dh_get_int1_state(); -void lis2dh_configure_aoi_int2(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration); +void lis2dh_configure_aoi_int2(lis2dh_interrupt_configuration configuration, uint8_t threshold, uint8_t duration, bool latch); lis2dh_interrupt_state lis2dh_get_int2_state(); |