l3gd20_spi.c File Reference

Driver for L3GD20 3-axis gyroscope from ST using SPI. More...

#include "peripherals/l3gd20_spi.h"

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

Functions
void	l3gd20_spi_init (struct L3gd20_Spi *l3g, struct spi_periph *spi_p, uint8_t slave_idx)
static void	l3gd20_spi_write_to_reg (struct L3gd20_Spi *l3g, uint8_t _reg, uint8_t _val)
static void	l3gd20_spi_send_config (struct L3gd20_Spi *l3g)
void	l3gd20_spi_start_configure (struct L3gd20_Spi *l3g)
void	l3gd20_spi_read (struct L3gd20_Spi *l3g)
void	l3gd20_spi_event (struct L3gd20_Spi *l3g)

Detailed Description

Driver for L3GD20 3-axis gyroscope from ST using SPI.

Definition in file l3gd20_spi.c.

Macro Definition Documentation

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

Definition at line 133 of file l3gd20_spi.c.

Referenced by l3gd20_spi_event().

Function Documentation

void l3gd20_spi_event

(

struct L3gd20_Spi *

l3g

)

Definition at line 135 of file l3gd20_spi.c.

References L3gd20_Spi::data_available, L3gd20_Spi::data_rates, L3gd20_Spi::init_status, L3gd20_Spi::initialized, Int16FromBuf, L3G_CONF_UNINIT, L3G_CONF_WHO_AM_I, L3G_CONF_WHO_AM_I_OK, l3gd20_spi_send_config(), L3GD20_WHO_AM_I, L3gd20_Spi::rx_buf, L3gd20_Spi::spi_trans, SPITransDone, SPITransFailed, SPITransSuccess, spi_transaction::status, and TRUE.

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void l3gd20_spi_init	(	struct L3gd20_Spi *	l3g,
		struct spi_periph *	spi_p,
		uint8_t	slave_idx
	)

Definition at line 30 of file l3gd20_spi.c.

References spi_transaction::after_cb, spi_transaction::before_cb, spi_transaction::bitorder, spi_transaction::cdiv, L3gd20_Spi::config, spi_transaction::cpha, spi_transaction::cpol, L3gd20_Spi::data_available, spi_transaction::dss, FALSE, L3gd20_Spi::init_status, L3gd20_Spi::initialized, spi_transaction::input_buf, spi_transaction::input_length, L3G_CONF_UNINIT, l3gd20_set_default_config(), spi_transaction::output_buf, spi_transaction::output_length, L3gd20_Spi::rx_buf, spi_transaction::select, spi_transaction::slave_idx, L3gd20_Spi::spi_p, L3gd20_Spi::spi_trans, SPICphaEdge2, SPICpolIdleHigh, SPIDiv64, SPIDss8bit, SPIMSBFirst, SPISelectUnselect, SPITransDone, spi_transaction::status, and L3gd20_Spi::tx_buf.

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void l3gd20_spi_read

(

struct L3gd20_Spi *

l3g

)

Definition at line 122 of file l3gd20_spi.c.

References L3gd20_Spi::initialized, spi_transaction::input_length, L3GD20_REG_STATUS_REG, spi_transaction::output_length, L3gd20_Spi::spi_p, spi_submit(), L3gd20_Spi::spi_trans, SPITransDone, spi_transaction::status, and L3gd20_Spi::tx_buf.

Referenced by l3gd20_spi_periodic().

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static void l3gd20_spi_send_config ( struct L3gd20_Spi *  l3g )

static

Definition at line 74 of file l3gd20_spi.c.

References L3gd20_Spi::config, L3gd20Config::drbw, L3gd20Config::full_scale, L3gd20_Spi::init_status, L3gd20_Spi::initialized, spi_transaction::input_length, L3G_CONF_DONE, L3G_CONF_ENABLE, L3G_CONF_REG4, L3G_CONF_WHO_AM_I, L3GD20_PD, L3GD20_REG_CTRL_REG1, L3GD20_REG_CTRL_REG4, L3GD20_REG_WHO_AM_I, l3gd20_spi_write_to_reg(), L3GD20_Xen, L3GD20_Yen, L3GD20_Zen, spi_transaction::output_length, L3gd20Config::spi_3_wire, L3gd20_Spi::spi_p, spi_submit(), L3gd20_Spi::spi_trans, SPITransDone, spi_transaction::status, TRUE, and L3gd20_Spi::tx_buf.

Referenced by l3gd20_spi_event(), and l3gd20_spi_start_configure().

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void l3gd20_spi_start_configure

(

struct L3gd20_Spi *

l3g

)

Definition at line 112 of file l3gd20_spi.c.

References L3gd20_Spi::init_status, L3G_CONF_UNINIT, l3gd20_spi_send_config(), L3gd20_Spi::spi_trans, SPITransDone, SPITransSuccess, and spi_transaction::status.

Referenced by l3gd20_spi_periodic().

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static void l3gd20_spi_write_to_reg ( struct L3gd20_Spi *  l3g, uint8_t  _reg, uint8_t  _val  )

static

Definition at line 64 of file l3gd20_spi.c.

References spi_transaction::input_length, spi_transaction::output_length, L3gd20_Spi::spi_p, spi_submit(), L3gd20_Spi::spi_trans, and L3gd20_Spi::tx_buf.

Referenced by l3gd20_spi_send_config().

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