lps25h_i2c.c File Reference

Driver for LPS25H barometer I2C. More...

#include "peripherals/lps25h_i2c.h"
#include "std.h"
#include <stdio.h>
#include <math.h>

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Macros
#define	Int32FromBuf(buf, idx)   (int32_t)(int8_t)buf[idx+2] << 16 | (uint16_t)buf[idx+1] << 8 | buf[idx];

Functions
void	lps25h_i2c_init (struct Lps25h_I2c *lps, struct i2c_periph *i2c_p, uint8_t addr)
static void	lps25h_i2c_tx_reg (struct Lps25h_I2c *lps, uint8_t reg, uint8_t val)
static void	lps25h_i2c_send_config (struct Lps25h_I2c *lps)
void	lps25h_i2c_start_configure (struct Lps25h_I2c *lps)
void	lps25h_i2c_read (struct Lps25h_I2c *lps)
float	lps25h_readPressureMillibars (int32_t press)
float	pressureToAltMeters (float pressure_mbar, float altimeter_setting_mbar)
void	lps25h_i2c_event (struct Lps25h_I2c *lps)

Detailed Description

Driver for LPS25H barometer I2C.

Definition in file lps25h_i2c.c.

Macro Definition Documentation

Int32FromBuf

#define Int32FromBuf	(		buf,
			idx
	)		(int32_t)(int8_t)buf[idx+2] << 16 | (uint16_t)buf[idx+1] << 8 | buf[idx];

Definition at line 98 of file lps25h_i2c.c.

Function Documentation

lps25h_i2c_event()

void lps25h_i2c_event

(

struct Lps25h_I2c *

lps

)

Definition at line 110 of file lps25h_i2c.c.

References i2c_transaction::buf, Lps25h_I2c::data, Lps25h_I2c::data_available, Lps25h_I2c::i2c_trans, I2CTransDone, I2CTransFailed, I2CTransSuccess, Lps25h_I2c::init_status, Lps25h_I2c::initialized, Int32FromBuf, LPS25H_CONF_UNINIT, lps25h_i2c_send_config(), and i2c_transaction::status.

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lps25h_i2c_init()

void lps25h_i2c_init	(	struct Lps25h_I2c *	lps,
		struct i2c_periph *	i2c_p,
		uint8_t	addr
	)

Definition at line 33 of file lps25h_i2c.c.

References Lps25h_I2c::config, Lps25h_I2c::data_available, Lps25h_I2c::i2c_p, Lps25h_I2c::i2c_trans, I2CTransDone, Lps25h_I2c::init_status, Lps25h_I2c::initialized, LPS25H_CONF_UNINIT, lps25h_set_default_config(), i2c_transaction::slave_addr, and i2c_transaction::status.

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lps25h_i2c_read()

void lps25h_i2c_read

(

struct Lps25h_I2c *

lps

)

Definition at line 87 of file lps25h_i2c.c.

References i2c_transaction::buf, Lps25h_I2c::i2c_p, i2c_submit(), Lps25h_I2c::i2c_trans, I2CTransDone, I2CTransTxRx, Lps25h_I2c::initialized, i2c_transaction::len_r, i2c_transaction::len_w, LPS25H_REG_OUT_XL, i2c_transaction::status, and i2c_transaction::type.

Referenced by lps25h_i2c_periodic().

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lps25h_i2c_send_config()

static void lps25h_i2c_send_config ( struct Lps25h_I2c *  lps )

static

Definition at line 59 of file lps25h_i2c.c.

References Lps25h_I2c::config, Lps25hConfig::ctrl1, Lps25h_I2c::i2c_trans, I2CTransDone, Lps25h_I2c::init_status, Lps25h_I2c::initialized, LPS25H_CONF_CTRL1, LPS25H_CONF_DONE, LPS25H_CTRL_REG1, lps25h_i2c_tx_reg(), and i2c_transaction::status.

Referenced by lps25h_i2c_event(), and lps25h_i2c_start_configure().

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lps25h_i2c_start_configure()

void lps25h_i2c_start_configure

(

struct Lps25h_I2c *

lps

)

Definition at line 76 of file lps25h_i2c.c.

References Lps25h_I2c::i2c_trans, I2CTransDone, I2CTransSuccess, Lps25h_I2c::init_status, LPS25H_CONF_UNINIT, lps25h_i2c_send_config(), and i2c_transaction::status.

Referenced by lps25h_i2c_periodic().

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lps25h_i2c_tx_reg()

static void lps25h_i2c_tx_reg ( struct Lps25h_I2c *  lps, uint8_t  reg, uint8_t  val  )

static

Definition at line 48 of file lps25h_i2c.c.

References i2c_transaction::buf, Lps25h_I2c::i2c_p, i2c_submit(), Lps25h_I2c::i2c_trans, I2CTransTx, i2c_transaction::len_r, i2c_transaction::len_w, i2c_transaction::type, and val.

Referenced by lps25h_i2c_send_config().

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lps25h_readPressureMillibars()

float lps25h_readPressureMillibars

(

int32_t

press

)

Definition at line 101 of file lps25h_i2c.c.

pressureToAltMeters()

float pressureToAltMeters	(	float	pressure_mbar,
		float	altimeter_setting_mbar
	)

Definition at line 106 of file lps25h_i2c.c.