iicbus.c File Reference

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

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Macros
#define	SCAN_IICBUS   0

Functions
	__FBSDID ("$FreeBSD$")
	SYSCTL_NODE (_hw, OID_AUTO, i2c, CTLFLAG_RW, 0, "i2c controls")
static int	iicbus_probe (device_t dev)
int	iicbus_attach_common (device_t dev, u_int bus_freq)
static int	iicbus_attach (device_t dev)
int	iicbus_detach (device_t dev)
static int	iicbus_print_child (device_t dev, device_t child)
void	iicbus_probe_nomatch (device_t bus, device_t child)
int	iicbus_child_location (device_t bus, device_t child, struct sbuf *sb)
int	iicbus_child_pnpinfo (device_t bus, device_t child, struct sbuf *sb)
int	iicbus_read_ivar (device_t bus, device_t child, int which, uintptr_t *result)
int	iicbus_write_ivar (device_t bus, device_t child, int which, uintptr_t value)
device_t	iicbus_add_child_common (device_t dev, u_int order, const char *name, int unit, size_t ivars_size)
static device_t	iicbus_add_child (device_t dev, u_int order, const char *name, int unit)
static void	iicbus_hinted_child (device_t bus, const char *dname, int dunit)
static struct resource_list *	iicbus_get_resource_list (device_t bus __unused, device_t child)
int	iicbus_generic_intr (device_t dev, int event, char *buf)
int	iicbus_null_callback (device_t dev, int index, caddr_t data)
int	iicbus_null_repeated_start (device_t dev, u_char addr)
void	iicbus_init_frequency (device_t dev, u_int bus_freq)
static u_int	iicbus_get_frequency (device_t dev, u_char speed)
	MODULE_VERSION (iicbus, IICBUS_MODVER)
	DRIVER_MODULE (iicbus, iichb, iicbus_driver, iicbus_devclass, 0, 0)

Variables
static device_method_t	iicbus_methods []
driver_t	iicbus_driver
devclass_t	iicbus_devclass

Macro Definition Documentation

SCAN_IICBUS

#define SCAN_IICBUS   0

Definition at line 54 of file iicbus.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

DRIVER_MODULE()

DRIVER_MODULE	(	iicbus	,
		iichb	,
		iicbus_driver	,
		iicbus_devclass	,
		0	,
		0
	)

iicbus_add_child()

static device_t iicbus_add_child ( device_t  dev, u_int  order, const char *  name, int  unit  )

static

Definition at line 246 of file iicbus.c.

References dev, and iicbus_add_child_common().

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iicbus_add_child_common()

device_t iicbus_add_child_common	(	device_t	dev,
		u_int	order,
		const char *	name,
		int	unit,
		size_t	ivars_size
	)

Definition at line 226 of file iicbus.c.

References dev, and iicbus_ivar::rl.

Referenced by acpi_iicbus_add_child(), and iicbus_add_child().

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iicbus_attach()

static int iicbus_attach ( device_t  dev )

static

Definition at line 137 of file iicbus.c.

References dev, and iicbus_attach_common().

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iicbus_attach_common()

int iicbus_attach_common	(	device_t	dev,
		u_int	bus_freq
	)

Definition at line 96 of file iicbus.c.

References addr, iicbus_softc::bus_freq, iicbus_softc::dev, dev, IIC_FASTEST, iicbus_init_frequency(), iicbus_reset, IICBUS_SOFTC, iicbus_softc::lock, and iicbus_softc::strict.

Referenced by acpi_iicbus_attach(), and iicbus_attach().

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iicbus_child_location()

int iicbus_child_location	(	device_t	bus,
		device_t	child,
		struct sbuf *	sb
	)

Definition at line 180 of file iicbus.c.

References iicbus_ivar::addr, and IICBUS_IVAR.

Referenced by acpi_iicbus_child_location().

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iicbus_child_pnpinfo()

int iicbus_child_pnpinfo	(	device_t	bus,
		device_t	child,
		struct sbuf *	sb
	)

Definition at line 189 of file iicbus.c.

Referenced by acpi_iicbus_child_pnpinfo().

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iicbus_detach()

int iicbus_detach

(

device_t

dev

)

Definition at line 144 of file iicbus.c.

References dev, IIC_FASTEST, iicbus_reset, IICBUS_SOFTC, and iicbus_softc::lock.

Referenced by acpi_iicbus_detach().

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iicbus_generic_intr()

int iicbus_generic_intr	(	device_t	dev,
		int	event,
		char *	buf
	)

Definition at line 280 of file iicbus.c.

iicbus_get_frequency()

static u_int iicbus_get_frequency ( device_t  dev, u_char  speed  )

static

Definition at line 331 of file iicbus.c.

References iicbus_softc::bus_freq, dev, IIC_SLOW, IICBUS_SOFTC, and speed.

iicbus_get_resource_list()

static struct resource_list * iicbus_get_resource_list ( device_t bus  __unused, device_t  child  )

static

Definition at line 271 of file iicbus.c.

References IICBUS_IVAR, and iicbus_ivar::rl.

iicbus_hinted_child()

static void iicbus_hinted_child ( device_t  bus, const char *  dname, int  dunit  )

static

Definition at line 254 of file iicbus.c.

References iicbus_ivar::addr, and IICBUS_IVAR.

iicbus_init_frequency()

void iicbus_init_frequency	(	device_t	dev,
		u_int	bus_freq
	)

Definition at line 301 of file iicbus.c.

References iicbus_softc::bus_freq, dev, and IICBUS_SOFTC.

Referenced by iicbus_attach_common(), and ofw_iicbus_attach().

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iicbus_null_callback()

int iicbus_null_callback	(	device_t	dev,
		int	index,
		caddr_t	data
	)

Definition at line 287 of file iicbus.c.

iicbus_null_repeated_start()

int iicbus_null_repeated_start	(	device_t	dev,
		u_char	addr
	)

Definition at line 294 of file iicbus.c.

References IIC_ENOTSUPP.

iicbus_print_child()

static int iicbus_print_child ( device_t  dev, device_t  child  )

static

Definition at line 157 of file iicbus.c.

References iicbus_ivar::addr, dev, IICBUS_IVAR, and iicbus_ivar::rl.

iicbus_probe()

static int iicbus_probe ( device_t  dev )

static

Definition at line 59 of file iicbus.c.

References dev.

iicbus_probe_nomatch()

void iicbus_probe_nomatch	(	device_t	bus,
		device_t	child
	)

Definition at line 172 of file iicbus.c.

References iicbus_ivar::addr, and IICBUS_IVAR.

Referenced by acpi_iicbus_probe_nomatch().

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iicbus_read_ivar()

int iicbus_read_ivar	(	device_t	bus,
		device_t	child,
		int	which,
		uintptr_t *	result
	)

Definition at line 195 of file iicbus.c.

References iicbus_ivar::addr, IICBUS_IVAR, and IICBUS_IVAR_ADDR.

Referenced by acpi_iicbus_read_ivar().

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iicbus_write_ivar()

int iicbus_write_ivar	(	device_t	bus,
		device_t	child,
		int	which,
		uintptr_t	value
	)

Definition at line 210 of file iicbus.c.

References iicbus_ivar::addr, IICBUS_IVAR, and IICBUS_IVAR_ADDR.

Referenced by acpi_iicbus_write_ivar().

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MODULE_VERSION()

MODULE_VERSION	(	iicbus	,
		IICBUS_MODVER
	)

SYSCTL_NODE()

SYSCTL_NODE	(	_hw	,
		OID_AUTO	,
		i2c	,
		CTLFLAG_RW	,
		0	,
		"i2c controls"
	)

Variable Documentation

iicbus_devclass

devclass_t iicbus_devclass

Definition at line 386 of file iicbus.c.

iicbus_driver

driver_t iicbus_driver

Initial value:

= {
        "iicbus",
        iicbus_methods,
        sizeof(struct iicbus_softc),
}

Definition at line 380 of file iicbus.c.

iicbus_methods

device_method_t iicbus_methods[]

static

Definition at line 345 of file iicbus.c.