/*	$OpenBSD: acpivar.h,v 1.1 2005/06/02 20:09:39 tholo Exp $	*/
/*
 * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/timeout.h>

struct klist;

struct acpi_attach_args {
	char		*aaa_name;
	bus_space_tag_t	 aaa_iot;
	bus_space_tag_t	 aaa_memt;
	void		*aaa_table;
	paddr_t		 aaa_pbase;	/* Physical base address of ACPI tables */
};

struct acpi_mem_map {
	vaddr_t		 baseva;
	u_int8_t	*va;
	size_t		 vsize;
	paddr_t		 pa;
};

struct acpi_q {
	SIMPLEQ_ENTRY(acpi_q)	 q_next;
	void			*q_table;
	u_int8_t		 q_data[0];
};

typedef SIMPLEQ_HEAD(, acpi_q) acpi_qhead_t;

struct acpi_softc {
	struct device		 sc_dev;

	bus_space_tag_t		 sc_iot;
	bus_space_tag_t		 sc_memt;
#if 0
	bus_space_tag_t		 sc_pcit;
	bus_space_tag_t		 sc_smbust;
#endif

	/*
	 * First-level ACPI tables
	 */
	struct acpi_fadt	*sc_fadt;
	acpi_qhead_t		 sc_tables;

	/*
	 * Second-level information from FADT
	 */
	struct acpi_facs	*sc_facs;	/* Shared with firmware! */

	struct klist		*sc_note;
	bus_space_handle_t	 sc_ioh_pm1a_evt;

	void			*sc_interrupt;
#ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
	void			*sc_softih;
#else
	struct timeout		 sc_timeout;
#endif

	int			 sc_powerbtn;
	int			 sc_sleepbtn;
};

struct acpi_table {
	int	offset;
	size_t	size;
	void	*table;	
};

#define	ACPI_IOC_GETFACS	_IOR('A', 0, struct acpi_facs)
#define	ACPI_IOC_GETTABLE	_IOWR('A', 1, struct acpi_table)

#define	ACPI_EV_PWRBTN		0x0001	/* Power button was pushed */
#define	ACPI_EV_SLPBTN		0x0002	/* Sleep button was pushed */

#define	ACPI_EVENT_MASK		0x0003

#define	ACPI_EVENT_COMPOSE(t,i)	(((i) & 0x7fff) << 16 | ((t) & ACPI_EVENT_MASK))
#define	ACPI_EVENT_TYPE(e)	((e) & ACPI_EVENT_MASK)
#define	ACPI_EVENT_INDEX(e)	((e) >> 16)

/*
 * Sleep states
 */
#define	ACPI_STATE_S5		5

#if defined(_KERNEL)
int	 acpi_map(paddr_t, size_t, struct acpi_mem_map *);
void	 acpi_unmap(struct acpi_mem_map *);
int	 acpi_probe(struct device *, struct cfdata *, struct acpi_attach_args *);
u_int	 acpi_checksum(const void *, size_t);
void	 acpi_attach_machdep(struct acpi_softc *);
int	 acpi_interrupt(void *);
void	 acpi_enter_sleep_state(struct acpi_softc *, int);
#endif