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Diffstat (limited to 'include/linux/zorro.h')
| -rw-r--r-- | include/linux/zorro.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/include/linux/zorro.h b/include/linux/zorro.h new file mode 100644 index 000000000..63fbba074 --- /dev/null +++ b/include/linux/zorro.h @@ -0,0 +1,151 @@ +/* + * 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 zorro_driver *driver; /* which driver has allocated this device */ + 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 bus + */ + +extern struct bus_type zorro_bus_type; + + + /* + * 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(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 const struct zorro_device_id *zorro_match_device(const struct zorro_device_id *ids, const struct zorro_dev *z); +static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z) +{ + return z->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 64K chunk, for a maximum of 8MB + * (128 chunks, physical 0x00200000-0x009fffff). + * + * 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 (0x00200000) +#define Z2RAM_END (0x00a00000) +#define Z2RAM_SIZE (0x00800000) +#define Z2RAM_CHUNKSIZE (0x00010000) +#define Z2RAM_CHUNKMASK (0x0000ffff) +#define Z2RAM_CHUNKSHIFT (16) + + +#endif /* _LINUX_ZORRO_H */ |