bus.h

Linux Kernel 2.6.9 for OMAP1710

/* 
 * linux/include/asm-arm/arch-omap2/bus.h
 * 
 * Virtual bus for OMAP2. Allows better power management, such as managing
 * shared clocks, and mapping of bus addresses to Local Bus addresses.
 *
 * Copyright (C) 2004 Texas Instruments, Inc. 
 * 
 * This package 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. 
 * 
 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 
 */

#ifndef __ASM_ARM_ARCH_OMAP2_BUS_H
#define __ASM_ARM_ARCH_OMAP2_BUS_H

extern struct bus_type omap_bus_types[];

/*
 * Description for physical device
 */
struct omap_dev {
	struct device dev;	/* Standard device description */
	char *name;
	unsigned int devid;	/* OMAP device id */
	unsigned int busid;	/* OMAP virtual busid */
	struct resource res;	/* Standard resource description */
	void *mapbase;		/* OMAP physical address */
	unsigned int irq[6];	/* OMAP interrupts */
};

#define OMAP_DEV(_d)	container_of((_d), struct omap_dev, dev)

#define omap_get_drvdata(d)	dev_get_drvdata(&(d)->dev)
#define omap_set_drvdata(d,p)	dev_set_drvdata(&(d)->dev, p)

#define OMAP24xx_MMC_DEVID 2
#define OMAP24xx_CAM_DEVID 0

/*
 * Description for device driver
 */
struct omap_driver {
	struct device_driver drv;	/* Standard driver description */
	unsigned int devid;	/* OMAP device id for bus */
	unsigned int busid;	/* OMAP virtual busid */
	unsigned int clocks;	/* OMAP shared clocks */
	int (*probe) (struct omap_dev *);
	int (*remove) (struct omap_dev *);
	int (*suspend) (struct omap_dev *, u32);
	int (*resume) (struct omap_dev *);
};

#define OMAP_DRV(_d)	container_of((_d), struct omap_driver, drv)
#define OMAP_DRIVER_NAME(_omapdev) ((_omapdev)->dev.driver->name)

/*
 * Device ID numbers for bus types
 */

/*
 * Virtual bus definitions for OMAP
 */
#define OMAP_NR_BUSES	2

#define OMAP_BUS_NAME_L3	"l3"
#define OMAP_BUS_NAME_L4	"l4"

enum {
	OMAP_BUS_L3 = 0,
	OMAP_BUS_L4,
};

/* See arch/arm/mach-omap2/bus.c for the rest of the bus definitions. */

extern int omap_driver_register(struct omap_driver *driver);
extern void omap_driver_unregister(struct omap_driver *driver);
extern int omap_device_register(struct omap_dev *odev);
extern void omap_device_unregister(struct omap_dev *odev);

#endif				/* __ASM_ARM_ARCH_OMAP2_BUS_H */