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Power-down mode support added for smart power management #17

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2bcae2a
Magnetic, accelerometer and gyroscope sensing can be enabled or set i…
BlueAndi Jan 20, 2024
eba0bed
Brace style fixed.
BlueAndi Jan 20, 2024
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118 changes: 118 additions & 0 deletions Adafruit_LSM9DS0.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -419,6 +419,124 @@ void Adafruit_LSM9DS0::setupGyro(lsm9ds0GyroScale_t scale) {
}
}

/**************************************************************************/
/*!
@brief Power the accelerometer, magnetomer and gyroscope down
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerDown(void) {
powerAccelDown();
powerMagDown();
powerGyroDown();
}

/**************************************************************************/
/*!
@brief Power the accelerometer, magnetomer and gyroscope up
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerUp(void) {
powerAccelUp();
powerMagUp();
powerGyroUp();
}

/**************************************************************************/
/*!
@brief Power the accelerometer down
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerAccelDown(void) {
uint8_t value = read8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG1_XM);
const uint8_t CTRL_REG1_XM_ADOR_MASK = 0xF0;
const uint8_t CTRL_REG1_XM_AODR_POWER_DOWN = 0x00;

value &= ~(CTRL_REG1_XM_ADOR_MASK);
value |= CTRL_REG1_XM_AODR_POWER_DOWN;

write8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG1_XM, value);
}

/**************************************************************************/
/*!
@brief Power the accelerometer up
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerAccelUp(void) {
uint8_t value = read8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG1_XM);
const uint8_t CTRL_REG1_XM_ADOR_MASK = 0xF0;
const uint8_t CTRL_REG1_XM_AODR_100_HZ = 0x60;

value &= ~(CTRL_REG1_XM_ADOR_MASK);
value |= CTRL_REG1_XM_AODR_100_HZ;

write8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG1_XM, value);
}

/**************************************************************************/
/*!
@brief Power the magnetometer down
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerMagDown(void) {
uint8_t value = read8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG7_XM);
const uint8_t CTRL_REG7_XM_MD_MASK = 0x03;
const uint8_t CTRL_REG7_XM_MD_POWER_DOWN = 0x03;

value &= ~(CTRL_REG7_XM_MD_MASK);
value |= CTRL_REG7_XM_MD_POWER_DOWN;

write8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG7_XM, value);
}

/**************************************************************************/
/*!
@brief Power the magnetometer up
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerMagUp(void) {
uint8_t value = read8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG7_XM);
const uint8_t CTRL_REG7_XM_MD_MASK = 0x03;
const uint8_t CTRL_REG7_XM_MD_CONTINUOUIS_CONVERSION = 0x00;

value &= ~(CTRL_REG7_XM_MD_MASK);
value |= CTRL_REG7_XM_MD_CONTINUOUIS_CONVERSION;

write8(XMTYPE, LSM9DS0_REGISTER_CTRL_REG7_XM, value);
}

/**************************************************************************/
/*!
@brief Power the gyroscope down
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerGyroDown(void) {
uint8_t value = read8(GYROTYPE, LSM9DS0_REGISTER_CTRL_REG1_G);
const uint8_t CTRL_REG1_G_PD_MASK = 0x08;
const uint8_t CTRL_REG1_G_PD_POWER_DOWN = 0x00;

value &= ~(CTRL_REG1_G_PD_MASK);
value |= CTRL_REG1_G_PD_POWER_DOWN;

write8(GYROTYPE, LSM9DS0_REGISTER_CTRL_REG1_G, value);
}

/**************************************************************************/
/*!
@brief Power the gyroscope up
*/
/**************************************************************************/
void Adafruit_LSM9DS0::powerGyroUp(void) {
uint8_t value = read8(GYROTYPE, LSM9DS0_REGISTER_CTRL_REG1_G);
const uint8_t CTRL_REG1_G_PD_MASK = 0x08;
const uint8_t CTRL_REG1_G_PD_NORMAL = 0x08;

value &= ~(CTRL_REG1_G_PD_MASK);
value |= CTRL_REG1_G_PD_NORMAL;

write8(GYROTYPE, LSM9DS0_REGISTER_CTRL_REG1_G, value);
}

/***************************************************************************
UNIFIED SENSOR FUNCTIONS
***************************************************************************/
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8 changes: 8 additions & 0 deletions Adafruit_LSM9DS0.h
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Original file line number Diff line number Diff line change
Expand Up @@ -199,6 +199,14 @@ class Adafruit_LSM9DS0 {
void setupAccel(lsm9ds0AccelRange_t range);
void setupMag(lsm9ds0MagGain_t gain);
void setupGyro(lsm9ds0GyroScale_t scale);
void powerDown(void);
void powerUp(void);
void powerAccelDown(void);
void powerAccelUp(void);
void powerMagDown(void);
void powerMagUp(void);
void powerGyroDown(void);
void powerGyroUp(void);

/* Adafruit Unified Sensor Functions (not standard yet ... the current base
* class only */
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