litmus-rt.git - The LITMUS^RT kernel.

/*
 * cs_internal.h -- definitions internal to the PCMCIA core modules
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * The initial developer of the original code is David A. Hinds
 * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
 * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
 *
 * (C) 1999		David A. Hinds
 * (C) 2003 - 2010	Dominik Brodowski
 *
 *
 * This file contains definitions _only_ needed by the PCMCIA core modules.
 * It must not be included by PCMCIA socket drivers or by PCMCIA device
 * drivers.
 */

#ifndef _LINUX_CS_INTERNAL_H
#define _LINUX_CS_INTERNAL_H

#include <linux/kref.h>

/* Flags in client state */
#define CLIENT_WIN_REQ(i)	(0x1<<(i))

/* Flag to access all functions */
#define BIND_FN_ALL	0xff

/* Each card function gets one of these guys */
typedef struct config_t {
	struct kref	ref;
	unsigned int	state;

	struct resource io[MAX_IO_WIN]; /* io ports */
	struct resource mem[MAX_WIN];   /* mem areas */
} config_t;


struct cis_cache_entry {
	struct list_head	node;
	unsigned int		addr;
	unsigned int		len;
	unsigned int		attr;
	unsigned char		cache[0];
};

struct pccard_resource_ops {
	int	(*validate_mem)		(struct pcmcia_socket *s);
	int	(*find_io)		(struct pcmcia_socket *s,
					 unsigned int attr,
					 unsigned int *base,
					 unsigned int num,
					 unsigned int align,
					 struct resource **parent);
	struct resource* (*find_mem)	(unsigned long base, unsigned long num,
					 unsigned long align, int low,
					 struct pcmcia_socket *s);
	int	(*init)			(struct pcmcia_socket *s);
	void	(*exit)			(struct pcmcia_socket *s);
};

/* Flags in config state */
#define CONFIG_LOCKED		0x01
#define CONFIG_IRQ_REQ		0x02
#define CONFIG_IO_REQ		0x04

/* Flags in socket state */
#define SOCKET_PRESENT		0x0008
#define SOCKET_INUSE		0x0010
#define SOCKET_SUSPEND		0x0080
#define SOCKET_WIN_REQ(i)	(0x0100<<(i))
#define SOCKET_CARDBUS		0x8000
#define SOCKET_CARDBUS_CONFIG	0x10000


/*
 * Stuff internal to module "pcmcia_rsrc":
 */
extern int static_init(struct pcmcia_socket *s);
extern struct resource *pcmcia_make_resource(resource_size_t start,
					resource_size_t end,
					unsigned long flags, const char *name);

/*
 * Stuff internal to module "pcmcia_core":
 */

/* socket_sysfs.c */
extern int pccard_sysfs_add_socket(struct device *dev);
extern void pccard_sysfs_remove_socket(struct device *dev);

/* cardbus.c */
int cb_alloc(struct pcmcia_socket *s);
void cb_free(struct pcmcia_socket *s);



/*
 * Stuff exported by module "pcmcia_core" to module "pcmcia"
 */

struct pcmcia_callback{
	struct module	*owner;
	int		(*add) (struct pcmcia_socket *s);
	int		(*remove) (struct pcmcia_socket *s);
	void		(*requery) (struct pcmcia_socket *s);
	int		(*validate) (struct pcmcia_socket *s, unsigned int *i);
	int		(*suspend) (struct pcmcia_socket *s);
	int		(*early_resume) (struct pcmcia_socket *s);
	int		(*resume) (struct pcmcia_socket *s);
};

/* cs.c */
extern struct rw_semaphore pcmcia_socket_list_rwsem;
extern struct list_head pcmcia_socket_list;
extern struct class pcmcia_socket_class;


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