/*
* linux / zorro . h - - Amiga AutoConfig ( Zorro ) Bus Definitions
*
* Copyright ( C ) 1995 - - 2003 Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License . See the file COPYING in the main directory of this archive
* for more details .
*/
#ifndef _LINUX_ZORRO_H
#define _LINUX_ZORRO_H
#include <uapi/linux/zorro.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/mod_devicetable.h>
#include <asm /zorro.h>
/*
* Zorro devices
*/
struct zorro_dev {
struct ExpansionRom rom;
zorro_id id;
struct device dev; /* Generic device interface */
u16 slotaddr;
u16 slotsize;
char name[64 ];
struct resource resource;
};
#define to_zorro_dev(n) container_of(n, struct zorro_dev, dev)
/*
* Zorro device drivers
*/
struct zorro_driver {
struct list_head node;
char *name;
const struct zorro_device_id *id_table; /* NULL if wants all devices */
int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id); /* New device inserted */
void (*remove)(struct zorro_dev *z); /* Device removed (NULL if not a hot-plug capable driver) */
struct device_driver driver;
};
#define to_zorro_driver(drv) container_of_const(drv, struct zorro_driver, driver)
#define zorro_for_each_dev(dev) \
for (dev = &zorro_autocon[0 ]; dev < zorro_autocon+zorro_num_autocon; dev++)
/* New-style probing */
extern int zorro_register_driver(struct zorro_driver *);
extern void zorro_unregister_driver(struct zorro_driver *);
extern unsigned int zorro_num_autocon; /* # of autoconfig devices found */
extern struct zorro_dev *zorro_autocon;
/*
* Minimal information about a Zorro device , passed from bootinfo
* Only available temporarily , i . e . until initmem has been freed !
*/
struct zorro_dev_init {
struct ExpansionRom rom;
u16 slotaddr;
u16 slotsize;
u32 boardaddr;
u32 boardsize;
};
extern struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata;
/*
* Zorro Functions
*/
extern struct zorro_dev *zorro_find_device(zorro_id id,
struct zorro_dev *from);
#define zorro_resource_start(z) ((z)->resource.start)
#define zorro_resource_end(z) ((z)->resource.end)
#define zorro_resource_len(z) (resource_size(&(z)->resource))
#define zorro_resource_flags(z) ((z)->resource.flags)
#define zorro_request_device(z, name) \
request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name)
#define zorro_release_device(z) \
release_mem_region(zorro_resource_start(z), zorro_resource_len(z))
/* Similar to the helpers above, these manipulate per-zorro_dev
* driver - specific data . They are really just a wrapper around
* the generic device structure functions of these calls .
*/
static inline void *zorro_get_drvdata (struct zorro_dev *z)
{
return dev_get_drvdata(&z->dev);
}
static inline void zorro_set_drvdata (struct zorro_dev *z, void *data)
{
dev_set_drvdata(&z->dev, data);
}
/*
* Bitmask indicating portions of available Zorro II RAM that are unused
* by the system . Every bit represents a 64 K chunk , for a maximum of 8 MB
* ( 128 chunks , physical 0 x00200000 - 0 x009fffff ) .
*
* If you want to use ( = allocate ) portions of this RAM , you should clear
* the corresponding bits .
*/
extern DECLARE_BITMAP(zorro_unused_z2ram, 128 );
#define Z2RAM_START (0 x00200000)
#define Z2RAM_END (0 x00a00000)
#define Z2RAM_SIZE (0 x00800000)
#define Z2RAM_CHUNKSIZE (0 x00010000)
#define Z2RAM_CHUNKMASK (0 x0000ffff)
#define Z2RAM_CHUNKSHIFT (16 )
#endif /* _LINUX_ZORRO_H */
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