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