#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/sbuf.h>
#include <machine/resource.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/include/amlcode.h>
#include <dev/acpica/acpivar.h>
#include <dev/iicbus/iiconf.h>
#include <dev/iicbus/iicbus.h>

Include dependency graph for acpi_iicbus.c:

Data Structures
struct	gsb_buffer

struct	acpi_iicbus_softc

struct	acpi_iicbus_ivars

Macros
#define	ACPI_IICBUS_LOCAL_BUFSIZE 32 /* Fits max SMBUS block size */

#define	ResourceSource_Handle ResourceSource.StringPtr

#define	_COMPONENT ACPI_BUS

#define	AML_FIELD_ATTRIB_MASK 0x0F

#define	AML_FIELD_ATTRIO(attr, io) (((attr) << 16) \| (io))

Typedefs
typedef ACPI_RESOURCE_I2C_SERIALBUS	ACPI_IICBUS_RESOURCE_I2C_SERIALBUS

Functions
	__FBSDID ("$FreeBSD$")

	TUNABLE_INT ("hw.iicbus.enable_acpi_space_handler", &install_space_handler)

static bool	acpi_resource_is_i2c_serialbus (ACPI_RESOURCE *res)

static int	acpi_iicbus_sendb (device_t dev, u_char slave, char byte)

static int	acpi_iicbus_recvb (device_t dev, u_char slave, char *byte)

static int	acpi_iicbus_write (device_t dev, u_char slave, char cmd, void *buf, uint16_t buflen)

static int	acpi_iicbus_read (device_t dev, u_char slave, char cmd, void *buf, uint16_t buflen)

static int	acpi_iicbus_bwrite (device_t dev, u_char slave, char cmd, u_char count, char *buf)

static int	acpi_iicbus_bread (device_t dev, u_char slave, char cmd, u_char count, char buf)

static ACPI_STATUS	acpi_iicbus_space_handler (UINT32 Function, ACPI_PHYSICAL_ADDRESS Address, UINT32 BitWidth, UINT64 Value, void HandlerContext, void *RegionContext)

static int	acpi_iicbus_install_address_space_handler (struct acpi_iicbus_softc *sc)

static int	acpi_iicbus_remove_address_space_handler (struct acpi_iicbus_softc *sc)

static ACPI_STATUS	acpi_iicbus_get_i2cres_cb (ACPI_RESOURCE res, void context)

static ACPI_STATUS	acpi_iicbus_get_i2cres (ACPI_HANDLE handle, ACPI_RESOURCE_I2C_SERIALBUS *sb)

static ACPI_STATUS	acpi_iicbus_parse_resources_cb (ACPI_RESOURCE res, void context)

static ACPI_STATUS	acpi_iicbus_parse_resources (ACPI_HANDLE handle, device_t dev)

static void	acpi_iicbus_dump_res (device_t dev, ACPI_IICBUS_RESOURCE_I2C_SERIALBUS *sb)

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

static ACPI_STATUS	acpi_iicbus_enumerate_child (ACPI_HANDLE handle, UINT32 level, void context, void *result)

static ACPI_STATUS	acpi_iicbus_enumerate_children (device_t dev)

static void	acpi_iicbus_set_power_children (device_t dev, int state, bool all_children)

static int	acpi_iicbus_probe (device_t dev)

static int	acpi_iicbus_attach (device_t dev)

static int	acpi_iicbus_detach (device_t dev)

static int	acpi_iicbus_suspend (device_t dev)

static int	acpi_iicbus_resume (device_t dev)

static void	acpi_iicbus_probe_nomatch (device_t bus, device_t child)

static void	acpi_iicbus_driver_added (device_t dev, driver_t *driver)

static void	acpi_iicbus_child_deleted (device_t bus, device_t child)

static int	acpi_iicbus_read_ivar (device_t bus, device_t child, int which, uintptr_t *res)

static int	acpi_iicbus_write_ivar (device_t bus, device_t child, int which, uintptr_t val)

static int	acpi_iicbus_child_location (device_t bus, device_t child, struct sbuf *sb)

static int	acpi_iicbus_child_pnpinfo (device_t bus, device_t child, struct sbuf *sb)

	DEFINE_CLASS_1 (iicbus, acpi_iicbus_driver, acpi_iicbus_methods, sizeof(struct acpi_iicbus_softc), iicbus_driver)

	MODULE_VERSION (acpi_iicbus, 1)

	MODULE_DEPEND (acpi_iicbus, acpi, 1, 1, 1)

Variables
struct gsb_buffer	__packed

static int	install_space_handler = 0

static device_method_t	acpi_iicbus_methods []

Macro Definition Documentation

◆ _COMPONENT

#define _COMPONENT ACPI_BUS

Definition at line 61 of file acpi_iicbus.c.

◆ ACPI_IICBUS_LOCAL_BUFSIZE

#define ACPI_IICBUS_LOCAL_BUFSIZE 32 /* Fits max SMBUS block size */

Definition at line 50 of file acpi_iicbus.c.

◆ AML_FIELD_ATTRIB_MASK

#define AML_FIELD_ATTRIB_MASK 0x0F

◆ AML_FIELD_ATTRIO

#define AML_FIELD_ATTRIO	(	attr,
		io
	)	(((attr) << 16) \| (io))

◆ ResourceSource_Handle

#define ResourceSource_Handle ResourceSource.StringPtr

Definition at line 58 of file acpi_iicbus.c.

Typedef Documentation

◆ ACPI_IICBUS_RESOURCE_I2C_SERIALBUS

typedef ACPI_RESOURCE_I2C_SERIALBUS ACPI_IICBUS_RESOURCE_I2C_SERIALBUS

Definition at line 57 of file acpi_iicbus.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ acpi_iicbus_add_child()

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

static

Definition at line 452 of file acpi_iicbus.c.

References dev, and iicbus_add_child_common().

Here is the call graph for this function:

◆ acpi_iicbus_attach()

static int acpi_iicbus_attach ( device_t dev )

static

Definition at line 582 of file acpi_iicbus.c.

References acpi_iicbus_enumerate_children(), acpi_iicbus_install_address_space_handler(), acpi_iicbus_set_power_children(), iicbus_softc::bus_freq, dev, iicbus_attach_common(), install_space_handler, acpi_iicbus_softc::space_handler_installed, and acpi_iicbus_softc::super_sc.

Here is the call graph for this function:

◆ acpi_iicbus_bread()

static int acpi_iicbus_bread	(	device_t	dev,
		u_char	slave,
		char	cmd,
		u_char *	count,
		char *	buf
	)

static

Definition at line 173 of file acpi_iicbus.c.

References ACPI_IICBUS_LOCAL_BUFSIZE, iic_msg::buf, buf, dev, errno2iic(), IIC_M_NOSTART, IIC_M_NOSTOP, IIC_M_RD, IIC_M_WR, IIC_WAIT, iicbus_release_bus(), iicbus_request_bus(), iicbus_transfer(), iic_msg::len, len, msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_bwrite()

static int acpi_iicbus_bwrite	(	device_t	dev,
		u_char	slave,
		char	cmd,
		u_char	count,
		char *	buf
	)

static

Definition at line 158 of file acpi_iicbus.c.

References buf, bytes, dev, errno2iic(), IIC_M_NOSTART, IIC_M_NOSTOP, IIC_M_WR, iicbus_transfer(), msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_child_deleted()

static void acpi_iicbus_child_deleted	(	device_t	bus,
		device_t	child
	)

static

Definition at line 669 of file acpi_iicbus.c.

References acpi_iicbus_ivars::handle.

◆ acpi_iicbus_child_location()

static int acpi_iicbus_child_location	(	device_t	bus,
		device_t	child,
		struct sbuf *	sb
	)

static

Definition at line 713 of file acpi_iicbus.c.

References acpi_iicbus_ivars::handle, and iicbus_child_location().

Here is the call graph for this function:

◆ acpi_iicbus_child_pnpinfo()

static int acpi_iicbus_child_pnpinfo	(	device_t	bus,
		device_t	child,
		struct sbuf *	sb
	)

static

Definition at line 732 of file acpi_iicbus.c.

References acpi_iicbus_ivars::handle, and iicbus_child_pnpinfo().

Here is the call graph for this function:

◆ acpi_iicbus_detach()

static int acpi_iicbus_detach ( device_t dev )

static

Definition at line 600 of file acpi_iicbus.c.

References acpi_iicbus_remove_address_space_handler(), acpi_iicbus_set_power_children(), dev, iicbus_detach(), and acpi_iicbus_softc::space_handler_installed.

Here is the call graph for this function:

◆ acpi_iicbus_driver_added()

static void acpi_iicbus_driver_added	(	device_t	dev,
		driver_t *	driver
	)

static

Definition at line 648 of file acpi_iicbus.c.

References dev.

◆ acpi_iicbus_dump_res()

static void acpi_iicbus_dump_res	(	device_t	dev,
		ACPI_IICBUS_RESOURCE_I2C_SERIALBUS *	sb
	)

static

Definition at line 438 of file acpi_iicbus.c.

References dev.

Referenced by acpi_iicbus_enumerate_child().

Here is the caller graph for this function:

◆ acpi_iicbus_enumerate_child()

static ACPI_STATUS acpi_iicbus_enumerate_child	(	ACPI_HANDLE	handle,
		UINT32	level,
		void *	context,
		void **	result
	)

static

Definition at line 460 of file acpi_iicbus.c.

References acpi_iicbus_dump_res(), acpi_iicbus_get_i2cres(), acpi_iicbus_parse_resources(), iicbus_softc::bus_freq, and iicbus.

Referenced by acpi_iicbus_enumerate_children().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_enumerate_children()

static ACPI_STATUS acpi_iicbus_enumerate_children ( device_t dev )

static

Definition at line 537 of file acpi_iicbus.c.

References acpi_iicbus_enumerate_child(), and dev.

Referenced by acpi_iicbus_attach().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_get_i2cres()

static ACPI_STATUS acpi_iicbus_get_i2cres	(	ACPI_HANDLE	handle,
		ACPI_RESOURCE_I2C_SERIALBUS *	sb
	)

static

Definition at line 387 of file acpi_iicbus.c.

References acpi_iicbus_get_i2cres_cb().

Referenced by acpi_iicbus_enumerate_child().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_get_i2cres_cb()

static ACPI_STATUS acpi_iicbus_get_i2cres_cb	(	ACPI_RESOURCE *	res,
		void *	context
	)

static

Definition at line 361 of file acpi_iicbus.c.

References acpi_resource_is_i2c_serialbus(), and gsb_buffer::status.

Referenced by acpi_iicbus_get_i2cres().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_install_address_space_handler()

static int acpi_iicbus_install_address_space_handler ( struct acpi_iicbus_softc * sc )

static

Definition at line 325 of file acpi_iicbus.c.

References acpi_iicbus_space_handler(), iicbus_softc::dev, acpi_iicbus_softc::space_handler_info, and acpi_iicbus_softc::super_sc.

Referenced by acpi_iicbus_attach().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_parse_resources()

static ACPI_STATUS acpi_iicbus_parse_resources	(	ACPI_HANDLE	handle,
		device_t	dev
	)

static

Definition at line 430 of file acpi_iicbus.c.

References acpi_iicbus_parse_resources_cb(), and dev.

Referenced by acpi_iicbus_enumerate_child().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_parse_resources_cb()

static ACPI_STATUS acpi_iicbus_parse_resources_cb	(	ACPI_RESOURCE *	res,
		void *	context
	)

static

Definition at line 395 of file acpi_iicbus.c.

References dev, and iicbus_ivar::rl.

Referenced by acpi_iicbus_parse_resources().

Here is the caller graph for this function:

◆ acpi_iicbus_probe()

static int acpi_iicbus_probe ( device_t dev )

static

Definition at line 561 of file acpi_iicbus.c.

References dev.

◆ acpi_iicbus_probe_nomatch()

static void acpi_iicbus_probe_nomatch	(	device_t	bus,
		device_t	child
	)

static

Definition at line 637 of file acpi_iicbus.c.

References iicbus_probe_nomatch().

Here is the call graph for this function:

◆ acpi_iicbus_read()

static int acpi_iicbus_read	(	device_t	dev,
		u_char	slave,
		char	cmd,
		void *	buf,
		uint16_t	buflen
	)

static

Definition at line 134 of file acpi_iicbus.c.

References ACPI_IICBUS_LOCAL_BUFSIZE, iic_msg::buf, buf, dev, IIC_M_NOSTOP, IIC_M_RD, IIC_M_WR, iicbus_transfer(), msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_read_ivar()

static int acpi_iicbus_read_ivar	(	device_t	bus,
		device_t	child,
		int	which,
		uintptr_t *	res
	)

static

Definition at line 678 of file acpi_iicbus.c.

References acpi_iicbus_ivars::handle, and iicbus_read_ivar().

Here is the call graph for this function:

◆ acpi_iicbus_recvb()

static int acpi_iicbus_recvb	(	device_t	dev,
		u_char	slave,
		char *	byte
	)

static

Definition at line 106 of file acpi_iicbus.c.

References buf, dev, IIC_M_RD, iicbus_transfer(), msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_remove_address_space_handler()

static int acpi_iicbus_remove_address_space_handler ( struct acpi_iicbus_softc * sc )

static

Definition at line 343 of file acpi_iicbus.c.

References acpi_iicbus_space_handler(), iicbus_softc::dev, and acpi_iicbus_softc::super_sc.

Referenced by acpi_iicbus_detach().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_resume()

static int acpi_iicbus_resume ( device_t dev )

static

Definition at line 624 of file acpi_iicbus.c.

References acpi_iicbus_set_power_children(), and dev.

Here is the call graph for this function:

◆ acpi_iicbus_sendb()

static int acpi_iicbus_sendb	(	device_t	dev,
		u_char	slave,
		char	byte
	)

static

Definition at line 96 of file acpi_iicbus.c.

References dev, IIC_M_WR, iicbus_transfer(), msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_set_power_children()

static void acpi_iicbus_set_power_children	(	device_t	dev,
		int	state,
		bool	all_children
	)

static

Definition at line 545 of file acpi_iicbus.c.

References dev.

Referenced by acpi_iicbus_attach(), acpi_iicbus_detach(), acpi_iicbus_resume(), and acpi_iicbus_suspend().

Here is the caller graph for this function:

◆ acpi_iicbus_space_handler()

static ACPI_STATUS acpi_iicbus_space_handler	(	UINT32	Function,
		ACPI_PHYSICAL_ADDRESS	Address,
		UINT32	BitWidth,
		UINT64 *	Value,
		void *	HandlerContext,
		void *	RegionContext
	)

static

Definition at line 219 of file acpi_iicbus.c.

References acpi_iicbus_bread(), acpi_iicbus_bwrite(), acpi_iicbus_read(), acpi_iicbus_recvb(), acpi_iicbus_sendb(), acpi_iicbus_write(), acpi_resource_is_i2c_serialbus(), AML_FIELD_ATTRIB_MASK, AML_FIELD_ATTRIO, gsb_buffer::data, iicbus_softc::dev, dev, gsb_buffer::len, gsb_buffer::status, acpi_iicbus_softc::super_sc, and val.

Referenced by acpi_iicbus_install_address_space_handler(), and acpi_iicbus_remove_address_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_suspend()

static int acpi_iicbus_suspend ( device_t dev )

static

Definition at line 612 of file acpi_iicbus.c.

References acpi_iicbus_set_power_children(), and dev.

Here is the call graph for this function:

◆ acpi_iicbus_write()

static int acpi_iicbus_write	(	device_t	dev,
		u_char	slave,
		char	cmd,
		void *	buf,
		uint16_t	buflen
	)

static

Definition at line 122 of file acpi_iicbus.c.

References buf, dev, IIC_M_NOSTART, IIC_M_NOSTOP, IIC_M_WR, iicbus_transfer(), msgs, and slave.

Referenced by acpi_iicbus_space_handler().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ acpi_iicbus_write_ivar()

static int acpi_iicbus_write_ivar	(	device_t	bus,
		device_t	child,
		int	which,
		uintptr_t	val
	)

static

Definition at line 694 of file acpi_iicbus.c.

References acpi_iicbus_ivars::handle, iicbus_write_ivar(), and val.

Here is the call graph for this function:

◆ acpi_resource_is_i2c_serialbus()

static bool acpi_resource_is_i2c_serialbus ( ACPI_RESOURCE * res )

inlinestatic

Definition at line 85 of file acpi_iicbus.c.

Referenced by acpi_iicbus_get_i2cres_cb(), and acpi_iicbus_space_handler().

Here is the caller graph for this function:

◆ DEFINE_CLASS_1()

DEFINE_CLASS_1	(	iicbus	,
		acpi_iicbus_driver	,
		acpi_iicbus_methods	,
		sizeof(struct acpi_iicbus_softc)	,
		iicbus_driver
	)

◆ MODULE_DEPEND()

MODULE_DEPEND	(	acpi_iicbus	,
		acpi	,
		1	,
		1	,
		1
	)

◆ MODULE_VERSION()

MODULE_VERSION	(	acpi_iicbus	,
		1
	)

◆ TUNABLE_INT()

TUNABLE_INT	(	"hw.iicbus.enable_acpi_space_handler"	,
		&	install_space_handler
	)

Variable Documentation

◆ __packed

struct gsb_buffer __packed

◆ acpi_iicbus_methods

device_method_t acpi_iicbus_methods[]

static

Initial value:

= {
        
        DEVMETHOD(device_probe,         acpi_iicbus_probe),
        DEVMETHOD(device_attach,        acpi_iicbus_attach),
        DEVMETHOD(device_detach,        acpi_iicbus_detach),
        DEVMETHOD(device_suspend,       acpi_iicbus_suspend),
        DEVMETHOD(device_resume,        acpi_iicbus_resume),
 
        
        DEVMETHOD(bus_add_child,        acpi_iicbus_add_child),
        DEVMETHOD(bus_probe_nomatch,    acpi_iicbus_probe_nomatch),
        DEVMETHOD(bus_driver_added,     acpi_iicbus_driver_added),
        DEVMETHOD(bus_child_deleted,    acpi_iicbus_child_deleted),
        DEVMETHOD(bus_read_ivar,        acpi_iicbus_read_ivar),
        DEVMETHOD(bus_write_ivar,       acpi_iicbus_write_ivar),
        DEVMETHOD(bus_child_location,   acpi_iicbus_child_location),
        DEVMETHOD(bus_child_pnpinfo,    acpi_iicbus_child_pnpinfo),
        DEVMETHOD(bus_get_device_path,  acpi_get_acpi_device_path),
 
        DEVMETHOD_END,
}

Definition at line 750 of file acpi_iicbus.c.

◆ install_space_handler

int install_space_handler = 0

static

Definition at line 81 of file acpi_iicbus.c.

Referenced by acpi_iicbus_attach().

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ _COMPONENT

◆ ACPI_IICBUS_LOCAL_BUFSIZE

◆ AML_FIELD_ATTRIB_MASK

◆ AML_FIELD_ATTRIO

◆ ResourceSource_Handle

Typedef Documentation

◆ ACPI_IICBUS_RESOURCE_I2C_SERIALBUS

Function Documentation

◆ __FBSDID()

◆ acpi_iicbus_add_child()

◆ acpi_iicbus_attach()

◆ acpi_iicbus_bread()

◆ acpi_iicbus_bwrite()

◆ acpi_iicbus_child_deleted()

◆ acpi_iicbus_child_location()

◆ acpi_iicbus_child_pnpinfo()

◆ acpi_iicbus_detach()

◆ acpi_iicbus_driver_added()

◆ acpi_iicbus_dump_res()

◆ acpi_iicbus_enumerate_child()

◆ acpi_iicbus_enumerate_children()

◆ acpi_iicbus_get_i2cres()

◆ acpi_iicbus_get_i2cres_cb()

◆ acpi_iicbus_install_address_space_handler()

◆ acpi_iicbus_parse_resources()

◆ acpi_iicbus_parse_resources_cb()

◆ acpi_iicbus_probe()

◆ acpi_iicbus_probe_nomatch()

◆ acpi_iicbus_read()

◆ acpi_iicbus_read_ivar()

◆ acpi_iicbus_recvb()

◆ acpi_iicbus_remove_address_space_handler()

◆ acpi_iicbus_resume()

◆ acpi_iicbus_sendb()

◆ acpi_iicbus_set_power_children()

◆ acpi_iicbus_space_handler()

◆ acpi_iicbus_suspend()

◆ acpi_iicbus_write()

◆ acpi_iicbus_write_ivar()

◆ acpi_resource_is_i2c_serialbus()

◆ DEFINE_CLASS_1()

◆ MODULE_DEPEND()

◆ MODULE_VERSION()

◆ TUNABLE_INT()

Variable Documentation

◆ __packed

◆ acpi_iicbus_methods

◆ install_space_handler