iiconf.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include <dev/iicbus/iiconf.h>
#include <dev/iicbus/iicbus.h>
#include "iicbus_if.h"

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Functions
	__FBSDID ("$FreeBSD$")
int	errno2iic (int errno)
int	iic2errno (int iic_status)
void	iicbus_intr (device_t bus, int event, char *buf)
static int	iicbus_poll (struct iicbus_softc *sc, int how)
int	iicbus_request_bus (device_t bus, device_t dev, int how)
int	iicbus_release_bus (device_t bus, device_t dev)
int	iicbus_started (device_t bus)
int	iicbus_start (device_t bus, u_char slave, int timeout)
int	iicbus_repeated_start (device_t bus, u_char slave, int timeout)
int	iicbus_stop (device_t bus)
int	iicbus_write (device_t bus, const char *buf, int len, int *sent, int timeout)
int	iicbus_read (device_t bus, char *buf, int len, int *read, int last, int delay)
int	iicbus_write_byte (device_t bus, char byte, int timeout)
int	iicbus_read_byte (device_t bus, char *byte, int timeout)
int	iicbus_block_write (device_t bus, u_char slave, char *buf, int len, int *sent)
int	iicbus_block_read (device_t bus, u_char slave, char *buf, int len, int *read)
int	iicbus_transfer (device_t bus, struct iic_msg *msgs, uint32_t nmsgs)
int	iicbus_transfer_excl (device_t dev, struct iic_msg *msgs, uint32_t nmsgs, int how)
int	iicbus_transfer_gen (device_t dev, struct iic_msg *msgs, uint32_t nmsgs)
int	iicdev_readfrom (device_t slavedev, uint8_t regaddr, void *buffer, uint16_t buflen, int waithow)
int	iicdev_writeto (device_t slavedev, uint8_t regaddr, void *buffer, uint16_t buflen, int waithow)

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

errno2iic()

int errno2iic

(

int

errno

)

Definition at line 51 of file iiconf.c.

References IIC_ERRNO.

Referenced by acpi_iicbus_bread(), acpi_iicbus_bwrite(), iicbus_poll(), and iicdev_writeto().

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iic2errno()

int iic2errno

(

int

iic_status

)

Definition at line 60 of file iiconf.c.

References IIC_EBUSBSY, IIC_EBUSERR, IIC_ENOACK, IIC_ENOADDR, IIC_ENOTSUPP, IIC_EOVERFLOW, IIC_ERESOURCE, IIC_ERRNO, IIC_ESTATUS, IIC_ETIMEOUT, IIC_EUNDERFLOW, and IIC_NOERR.

Referenced by ads111x_read_2(), icee_read(), icee_write(), iichid_get_rdesc(), iichid_get_report(), iichid_ioctl(), iichid_read(), iichid_set_report(), iichid_write(), iicmux_callback(), pcf8574_read(), pcf8574_write(), tca6416_read(), and tca6416_write().

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iicbus_block_read()

int iicbus_block_read	(	device_t	bus,
		u_char	slave,
		char *	buf,
		int	len,
		int *	read
	)

Definition at line 414 of file iiconf.c.

References addr, buf, IIC_LAST_READ, iicbus_read(), iicbus_start(), iicbus_stop(), len, LSB, read, and slave.

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iicbus_block_write()

int iicbus_block_write	(	device_t	bus,
		u_char	slave,
		char *	buf,
		int	len,
		int *	sent
	)

Definition at line 393 of file iiconf.c.

References addr, buf, iicbus_start(), iicbus_stop(), iicbus_write(), len, and slave.

Referenced by icoutput().

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iicbus_intr()

void iicbus_intr	(	device_t	bus,
		int	event,
		char *	buf
	)

Definition at line 97 of file iiconf.c.

References buf, event, and iicbus_softc::owner.

Referenced by iicmux_intr().

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iicbus_poll()

static int iicbus_poll ( struct iicbus_softc *  sc, int  how  )

static

Definition at line 109 of file iiconf.c.

References errno2iic(), IIC_EBUSBSY, IIC_INTR, IIC_INTRWAIT, IIC_NOINTR, IIC_WAIT, IICBUS_ASSERT_LOCKED, IICPRI, and iicbus_softc::lock.

Referenced by iicbus_request_bus().

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iicbus_read()

int iicbus_read	(	device_t	bus,
		char *	buf,
		int	len,
		int *	read,
		int	last,
		int	delay
	)

Definition at line 339 of file iiconf.c.

References buf, delay, IIC_ESTATUS, last, len, LSB, read, iicbus_softc::started, and iicbus_softc::strict.

Referenced by iicbus_block_read(), iicbus_read_byte(), iicbus_transfer_gen(), iicmux_read(), and iicuio_move().

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iicbus_read_byte()

int iicbus_read_byte	(	device_t	bus,
		char *	byte,
		int	timeout
	)

Definition at line 375 of file iiconf.c.

References IIC_ESTATUS, IIC_LAST_READ, iicbus_read(), LSB, read, iicbus_softc::started, iicbus_softc::strict, and timeout.

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iicbus_release_bus()

int iicbus_release_bus	(	device_t	bus,
		device_t	dev
	)

Definition at line 206 of file iiconf.c.

References iic_reqbus_data::bus, iicbus_softc::busydev, iic_reqbus_data::dev, dev, iic_reqbus_data::flags, IIC_EBUSBSY, IIC_RELEASE_BUS, IIC_REQBUS_DEV, IICBUS_LOCK, IICBUS_UNLOCK, iicbus_softc::owncount, and iicbus_softc::owner.

Referenced by acpi_iicbus_bread(), icioctl(), iicbus_transfer_excl(), iicdtor(), iichid_intr(), iichid_read(), iichid_set_power_state(), iicioctl(), iicmux_callback(), iicrdwr(), iicsmb_bread(), iicsmb_callback(), iicuio(), isl12xx_gettime(), isl12xx_settime(), nxprtc_gettime(), nxprtc_settime(), rtc8583_gettime(), and rtc8583_settime().

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iicbus_repeated_start()

int iicbus_repeated_start	(	device_t	bus,
		u_char	slave,
		int	timeout
	)

Definition at line 276 of file iiconf.c.

References IIC_ESTATUS, slave, iicbus_softc::started, and timeout.

Referenced by iicbus_transfer_gen(), iicioctl(), and iicmux_repeated_start().

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iicbus_request_bus()

int iicbus_request_bus	(	device_t	bus,
		device_t	dev,
		int	how
	)

Definition at line 138 of file iiconf.c.

References iic_reqbus_data::bus, iicbus_softc::busydev, iic_reqbus_data::dev, dev, iic_reqbus_data::flags, IIC_RECURSIVE, IIC_REQBUS_DEV, IIC_REQUEST_BUS, IICBUS_LOCK, iicbus_poll(), IICBUS_UNLOCK, iicbus_softc::owncount, and iicbus_softc::owner.

Referenced by acpi_iicbus_bread(), icioctl(), iicbus_transfer_excl(), iichid_intr(), iichid_read(), iichid_set_power_state(), iicioctl(), iicmux_callback(), iicrdwr(), iicsmb_bread(), iicsmb_callback(), iicuio(), isl12xx_gettime(), isl12xx_settime(), nxprtc_gettime(), nxprtc_settime(), rtc8583_gettime(), and rtc8583_settime().

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iicbus_start()

int iicbus_start	(	device_t	bus,
		u_char	slave,
		int	timeout
	)

Definition at line 254 of file iiconf.c.

References IIC_ESTATUS, slave, iicbus_softc::started, and timeout.

Referenced by iicbus_block_read(), iicbus_block_write(), iicbus_transfer_gen(), iicioctl(), iicmux_start(), and iicuio().

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iicbus_started()

int iicbus_started

(

device_t

bus

)

Definition at line 241 of file iiconf.c.

References iicbus_softc::started.

iicbus_stop()

int iicbus_stop

(

device_t

bus

)

Definition at line 298 of file iiconf.c.

References IIC_ESTATUS, and iicbus_softc::started.

Referenced by iicbus_block_read(), iicbus_block_write(), iicbus_transfer_gen(), iicdtor(), iicioctl(), iicmux_stop(), and iicuio().

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iicbus_transfer()

int iicbus_transfer	(	device_t	bus,
		struct iic_msg *	msgs,
		uint32_t	nmsgs
	)

Definition at line 442 of file iiconf.c.

References msgs, and nmsgs.

Referenced by acpi_iicbus_bread(), acpi_iicbus_bwrite(), acpi_iicbus_read(), acpi_iicbus_recvb(), acpi_iicbus_sendb(), acpi_iicbus_write(), ad7417_read_1(), ad7417_read_2(), ad7417_write(), ad7417_write_read(), ad7418_read_1(), ad7418_read_2(), ad7418_write_1(), adm1030_write_byte(), adt746x_read(), adt746x_write(), ds1631_read_1(), ds1631_read_2(), ds1631_write(), ds1672_read(), ds1672_write(), ds1775_read_2(), iichid_cmd_get_hid_desc(), iichid_cmd_get_report(), iichid_cmd_get_report_desc(), iichid_cmd_read(), iichid_cmd_set_report(), iichid_ioctl(), iicmux_transfer(), iicrdwr(), lm75_read(), lm75_write(), max6690_read(), pca954x_bus_select(), sy8106a_read(), and sy8106a_write().

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iicbus_transfer_excl()

int iicbus_transfer_excl	(	device_t	dev,
		struct iic_msg *	msgs,
		uint32_t	nmsgs,
		int	how
	)

Definition at line 449 of file iiconf.c.

References dev, iicbus_release_bus(), iicbus_request_bus(), msgs, and nmsgs.

Referenced by act8846_read(), act8846_read_buf(), act8846_write(), act8846_write_buf(), ads111x_write_2(), fan53555_read(), fan53555_write(), htu21_get_cfg(), htu21_get_measurement(), htu21_get_measurement_nohold(), htu21_get_serial(), htu21_set_cfg(), icee_read(), icee_write(), iicdev_readfrom(), iicdev_writeto(), max44009_get_reading(), nxprtc_readfrom(), pcf8574_read(), pcf8574_write(), pcf8591_get_reading(), pcf8591_set_config(), rtc8583_writeto(), s390rtc_read(), s390rtc_write(), tca6416_read(), and tca6416_write().

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iicbus_transfer_gen()

int iicbus_transfer_gen	(	device_t	dev,
		struct iic_msg *	msgs,
		uint32_t	nmsgs
	)

Definition at line 469 of file iiconf.c.

References addr, buf, dev, IIC_ENOTSUPP, IIC_ERESOURCE, IIC_LAST_READ, IIC_M_NOSTART, IIC_M_NOSTOP, IIC_M_RD, iicbus_read(), iicbus_repeated_start(), iicbus_start(), iicbus_stop(), iicbus_write(), len, LSB, msgs, nmsgs, iic_msg::slave, and iicbus_softc::started.

Referenced by iicbb_transfer(), and twsi_transfer().

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iicbus_write()

int iicbus_write	(	device_t	bus,
		const char *	buf,
		int	len,
		int *	sent,
		int	timeout
	)

Definition at line 321 of file iiconf.c.

References buf, IIC_ESTATUS, len, LSB, iicbus_softc::started, iicbus_softc::strict, and timeout.

Referenced by iicbus_block_write(), iicbus_transfer_gen(), iicbus_write_byte(), iicmux_write(), and iicuio_move().

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iicbus_write_byte()

int iicbus_write_byte	(	device_t	bus,
		char	byte,
		int	timeout
	)

Definition at line 356 of file iiconf.c.

References data, IIC_ESTATUS, iicbus_write(), LSB, iicbus_softc::started, iicbus_softc::strict, and timeout.

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iicdev_readfrom()

int iicdev_readfrom	(	device_t	slavedev,
		uint8_t	regaddr,
		void *	buffer,
		uint16_t	buflen,
		int	waithow
	)

Definition at line 524 of file iiconf.c.

References iic_msg::buf, iic_msg::flags, IIC_M_NOSTOP, IIC_M_RD, IIC_M_WR, iicbus_transfer_excl(), iic_msg::len, msgs, and iic_msg::slave.

Referenced by ads111x_read_2(), ds1307_gettime(), ds1307_read1(), ds3231_gettime(), ds3231_read1(), ds3231_temp_read(), hym8563_read_1(), hym8563_read_buf(), isl12xx_gettime(), isl12xx_read1(), pcf85063_check_status(), pcf85063_get_time(), pcf85063_set_time(), read_reg(), read_timeregs(), read_timeword(), rk8xx_read(), rtc8583_gettime(), rtc8583_read1(), rx8803_check_status(), rx8803_gettime(), rx8803_settime(), syr827_read(), tca6408_read1(), and tmp461_read_1().

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iicdev_writeto()

int iicdev_writeto	(	device_t	slavedev,
		uint8_t	regaddr,
		void *	buffer,
		uint16_t	buflen,
		int	waithow
	)

Definition at line 549 of file iiconf.c.

References iic_msg::buf, errno2iic(), iic_msg::flags, IIC_M_WR, IIC_WAIT, iicbus_transfer_excl(), iic_msg::len, and iic_msg::slave.

Referenced by ds1307_settime(), ds1307_write1(), ds3231_settime(), ds3231_write1(), hym8563_write_1(), hym8563_write_buf(), isl12xx_settime(), isl12xx_write1(), ltc430x_attach(), ltc430x_bus_select(), pca9547_bus_select(), pcf85063_set_time(), rk8xx_write(), rx8803_settime(), syr827_write(), tca6408_write1(), write_reg(), write_timeregs(), and write_timeword().

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