lsm303dlhc.c File Reference

Driver for ST LSM303DLHC 3D accelerometer and magnetometer. More...

#include "peripherals/lsm303dlhc.h"
#include "std.h"

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Macros
#define	LSM303DLHC_DEFAULT_ODR   0x90
#define	LSM303DLHC_DEFAULT_LP   0x00
#define	LSM303DLHC_DEFAULT_FS   0x00
#define	LSM303DLHC_DEFAULT_HR   0x04
#define	LSM303DLHC_DEFAULT_DO   (0x6 << 2)
#define	LSM303DLHC_DEFAULT_GN   (0x1 << 5)
#define	LSM303DLHC_DEFAULT_MD   0x00
#define	Int16FromBuf(_buf, _idx)   ((int16_t)((_buf[_idx+1]<<8) | _buf[_idx]))

Functions
static void	lsm303dlhc_acc_set_default_config (struct Lsm303dlhcAccConfig *c)
static void	lsm303dlhc_mag_set_default_config (struct Lsm303dlhcMagConfig *c)
void	lsm303dlhc_init (struct Lsm303dlhc *lsm, struct i2c_periph *i2c_p, uint8_t addr)
	Initialize Lsm303dlhc struct and set default config options. More...
static void	lsm303dlhc_i2c_tx_reg (struct Lsm303dlhc *lsm, uint8_t reg, uint8_t val)
static void	lsm303dlhc_send_config (struct Lsm303dlhc *lsm)
	Configuration function called once before normal use. More...
void	lsm303dlhc_start_configure (struct Lsm303dlhc *lsm)
void	lsm303dlhc_read (struct Lsm303dlhc *lsm)
void	lsm303dlhc_event (struct Lsm303dlhc *lsm)

Detailed Description

Driver for ST LSM303DLHC 3D accelerometer and magnetometer.

Definition in file lsm303dlhc.c.

Macro Definition Documentation

#define Int16FromBuf	(		_buf,
			_idx
	)		((int16_t)((_buf[_idx+1]<<8) | _buf[_idx]))

Definition at line 207 of file lsm303dlhc.c.

Referenced by lsm303dlhc_event().

#define LSM303DLHC_DEFAULT_DO   (0x6 << 2)

Definition at line 50 of file lsm303dlhc.c.

Referenced by lsm303dlhc_mag_set_default_config().

#define LSM303DLHC_DEFAULT_FS   0x00

Definition at line 42 of file lsm303dlhc.c.

Referenced by lsm303dlhc_acc_set_default_config().

#define LSM303DLHC_DEFAULT_GN   (0x1 << 5)

Definition at line 54 of file lsm303dlhc.c.

Referenced by lsm303dlhc_mag_set_default_config().

#define LSM303DLHC_DEFAULT_HR   0x04

Definition at line 46 of file lsm303dlhc.c.

Referenced by lsm303dlhc_acc_set_default_config(), and lsm303dlhc_send_config().

#define LSM303DLHC_DEFAULT_LP   0x00

Definition at line 38 of file lsm303dlhc.c.

Referenced by lsm303dlhc_acc_set_default_config().

#define LSM303DLHC_DEFAULT_MD   0x00

Definition at line 58 of file lsm303dlhc.c.

Referenced by lsm303dlhc_mag_set_default_config().

#define LSM303DLHC_DEFAULT_ODR   0x90

Definition at line 34 of file lsm303dlhc.c.

Referenced by lsm303dlhc_acc_set_default_config().

Function Documentation

static void lsm303dlhc_acc_set_default_config ( struct Lsm303dlhcAccConfig *  c )

static

Definition at line 61 of file lsm303dlhc.c.

References Lsm303dlhcAccConfig::hres, Lsm303dlhcAccConfig::lp_mode, LSM303DLHC_DEFAULT_FS, LSM303DLHC_DEFAULT_HR, LSM303DLHC_DEFAULT_LP, LSM303DLHC_DEFAULT_ODR, Lsm303dlhcAccConfig::rate, and Lsm303dlhcAccConfig::scale.

Referenced by lsm303dlhc_init().

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void lsm303dlhc_event

(

struct Lsm303dlhc *

lsm

)

Definition at line 209 of file lsm303dlhc.c.

References i2c_transaction::buf, Lsm303dlhc::data, Lsm303dlhc::data_available, Lsm303dlhc::i2c_trans, I2CTransDone, I2CTransFailed, I2CTransSuccess, Lsm303dlhc::init_status, Lsm303dlhc::initialized, Int16FromBuf, LSM303DLHC_ACC_ADDR, lsm303dlhc_send_config(), LSM_CONF_ACC_UNINIT, LSM_CONF_MAG_UNINIT, i2c_transaction::slave_addr, i2c_transaction::status, and TRUE.

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static void lsm303dlhc_i2c_tx_reg ( struct Lsm303dlhc *  lsm, uint8_t  reg, uint8_t  val  )

static

Definition at line 100 of file lsm303dlhc.c.

References i2c_transaction::buf, Lsm303dlhc::i2c_p, i2c_submit(), Lsm303dlhc::i2c_trans, I2CTransTx, i2c_transaction::len_r, i2c_transaction::len_w, i2c_transaction::type, and val.

Referenced by lsm303dlhc_send_config().

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void lsm303dlhc_init	(	struct Lsm303dlhc *	lsm,
		struct i2c_periph *	i2c_p,
		uint8_t	addr
	)

Initialize Lsm303dlhc struct and set default config options.

Parameters

lsm	Lsm303dlhc struct
i2c_p	I2C peripheral to use
addr	I2C address of Lsm303dlhc

Definition at line 82 of file lsm303dlhc.c.

References Lsm303dlhc::config, FALSE, Lsm303dlhc::i2c_p, Lsm303dlhc::i2c_trans, I2CTransDone, Lsm303dlhc::init_status, Lsm303dlhc::initialized, LSM303DLHC_ACC_ADDR, lsm303dlhc_acc_set_default_config(), lsm303dlhc_mag_set_default_config(), LSM_CONF_ACC_UNINIT, LSM_CONF_MAG_UNINIT, i2c_transaction::slave_addr, and i2c_transaction::status.

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static void lsm303dlhc_mag_set_default_config ( struct Lsm303dlhcMagConfig *  c )

static

Definition at line 69 of file lsm303dlhc.c.

References Lsm303dlhcMagConfig::gain, LSM303DLHC_DEFAULT_DO, LSM303DLHC_DEFAULT_GN, LSM303DLHC_DEFAULT_MD, LSM303DLHC_DO0_MASK, LSM303DLHC_GN_MASK, LSM303DLHC_MD_MASK, Lsm303dlhcMagConfig::mode, and Lsm303dlhcMagConfig::rate.

Referenced by lsm303dlhc_init().

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void lsm303dlhc_read

(

struct Lsm303dlhc *

lsm

)

Definition at line 185 of file lsm303dlhc.c.

References i2c_transaction::buf, Lsm303dlhc::i2c_p, i2c_submit(), Lsm303dlhc::i2c_trans, I2CTransDone, I2CTransTxRx, Lsm303dlhc::initialized, i2c_transaction::len_r, i2c_transaction::len_w, LSM303DLHC_ACC_ADDR, LSM303DLHC_REG_OUT_X_H_M, LSM303DLHC_REG_OUT_X_L_A, i2c_transaction::slave_addr, i2c_transaction::status, and i2c_transaction::type.

Referenced by lsm303dlhc_periodic(), and lsm303dlhc_send_config().

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static void lsm303dlhc_send_config ( struct Lsm303dlhc *  lsm )

static

Configuration function called once before normal use.

Definition at line 111 of file lsm303dlhc.c.

References Lsm303dlhc::config, Lsm303dlhc::i2c_trans, I2CTransDone, Lsm303dlhc::init_status, Lsm303dlhc::initialized, LSM303DLHC_ACC_ADDR, LSM303DLHC_DEFAULT_HR, LSM303DLHC_FS_MASK, LSM303DLHC_I1_DRDY1, lsm303dlhc_i2c_tx_reg(), LSM303DLHC_LPen, LSM303DLHC_ODR_MASK, lsm303dlhc_read(), LSM303DLHC_REG_CRA_REG_M, LSM303DLHC_REG_CRB_REG_M, LSM303DLHC_REG_CTRL_REG1_A, LSM303DLHC_REG_CTRL_REG3_A, LSM303DLHC_REG_CTRL_REG4_A, LSM303DLHC_REG_MR_REG_M, LSM303DLHC_Xen, LSM303DLHC_Yen, LSM303DLHC_Zen, LSM_CONF_ACC_CTRL_REG1_A, LSM_CONF_ACC_CTRL_REG3_A, LSM_CONF_ACC_CTRL_REG4_A, LSM_CONF_ACC_DONE, LSM_CONF_MAG_CRA_REG_M, LSM_CONF_MAG_CRB_REG_M, LSM_CONF_MAG_DONE, LSM_CONF_MAG_MR_REG_M, i2c_transaction::slave_addr, i2c_transaction::status, and TRUE.

Referenced by lsm303dlhc_event(), and lsm303dlhc_start_configure().

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void lsm303dlhc_start_configure

(

struct Lsm303dlhc *

lsm

)

Definition at line 165 of file lsm303dlhc.c.

References Lsm303dlhc::i2c_trans, I2CTransDone, I2CTransSuccess, Lsm303dlhc::init_status, LSM303DLHC_ACC_ADDR, lsm303dlhc_send_config(), LSM_CONF_ACC_UNINIT, LSM_CONF_MAG_UNINIT, i2c_transaction::slave_addr, and i2c_transaction::status.

Referenced by lsm303dlhc_periodic().

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