2 * linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
4 * Copyright (C) 1995--2003 Geert Uytterhoeven
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
11 #ifndef _LINUX_ZORRO_H
12 #define _LINUX_ZORRO_H
14 #include <linux/device.h>
18 * Each Zorro board has a 32-bit ID of the form
20 * mmmmmmmmmmmmmmmmppppppppeeeeeeee
24 * mmmmmmmmmmmmmmmm 16-bit Manufacturer ID (assigned by CBM (sigh))
25 * pppppppp 8-bit Product ID (assigned by manufacturer)
26 * eeeeeeee 8-bit Extended Product ID (currently only used
27 * for some GVP boards)
31 #define ZORRO_MANUF(id) ((id) >> 16)
32 #define ZORRO_PROD(id) (((id) >> 8) & 0xff)
33 #define ZORRO_EPC(id) ((id) & 0xff)
35 #define ZORRO_ID(manuf, prod, epc) \
36 ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc))
38 typedef __u32 zorro_id
;
41 /* Include the ID list */
42 #include <linux/zorro_ids.h>
46 * GVP identifies most of its products through the 'extended product code'
47 * (epc). The epc has to be ANDed with the GVP_PRODMASK before the
51 #define GVP_PRODMASK (0xf8)
52 #define GVP_SCSICLKMASK (0x01)
66 struct Node
*ln_Succ
; /* Pointer to next (successor) */
67 struct Node
*ln_Pred
; /* Pointer to previous (predecessor) */
69 __s8 ln_Pri
; /* Priority, for sorting */
70 __s8
*ln_Name
; /* ID string, null terminated */
71 } __attribute__ ((packed
));
74 /* -First 16 bytes of the expansion ROM */
75 __u8 er_Type
; /* Board type, size and flags */
76 __u8 er_Product
; /* Product number, assigned by manufacturer */
77 __u8 er_Flags
; /* Flags */
78 __u8 er_Reserved03
; /* Must be zero ($ff inverted) */
79 __u16 er_Manufacturer
; /* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */
80 __u32 er_SerialNumber
; /* Available for use by manufacturer */
81 __u16 er_InitDiagVec
; /* Offset to optional "DiagArea" structure */
86 } __attribute__ ((packed
));
88 /* er_Type board type bits */
89 #define ERT_TYPEMASK 0xc0
90 #define ERT_ZORROII 0xc0
91 #define ERT_ZORROIII 0x80
93 /* other bits defined in er_Type */
94 #define ERTB_MEMLIST 5 /* Link RAM into free memory list */
95 #define ERTF_MEMLIST (1<<5)
99 __u8 cd_Flags
; /* (read/write) */
100 __u8 cd_Pad
; /* reserved */
101 struct ExpansionRom cd_Rom
; /* copy of board's expansion ROM */
102 void *cd_BoardAddr
; /* where in memory the board was placed */
103 __u32 cd_BoardSize
; /* size of board in bytes */
104 __u16 cd_SlotAddr
; /* which slot number (PRIVATE) */
105 __u16 cd_SlotSize
; /* number of slots (PRIVATE) */
106 void *cd_Driver
; /* pointer to node of driver */
107 struct ConfigDev
*cd_NextCD
; /* linked list of drivers to config */
108 __u32 cd_Unused
[4]; /* for whatever the driver wants */
109 } __attribute__ ((packed
));
111 #define ZORRO_NUM_AUTO 16
115 #include <linux/init.h>
116 #include <linux/ioport.h>
117 #include <linux/mod_devicetable.h>
119 #include <asm/zorro.h>
127 struct ExpansionRom rom
;
129 struct zorro_driver
*driver
; /* which driver has allocated this device */
130 struct device dev
; /* Generic device interface */
134 struct resource resource
;
137 #define to_zorro_dev(n) container_of(n, struct zorro_dev, dev)
144 extern struct bus_type zorro_bus_type
;
148 * Zorro device drivers
151 struct zorro_driver
{
152 struct list_head node
;
154 const struct zorro_device_id
*id_table
; /* NULL if wants all devices */
155 int (*probe
)(struct zorro_dev
*z
, const struct zorro_device_id
*id
); /* New device inserted */
156 void (*remove
)(struct zorro_dev
*z
); /* Device removed (NULL if not a hot-plug capable driver) */
157 struct device_driver driver
;
160 #define to_zorro_driver(drv) container_of(drv, struct zorro_driver, driver)
163 #define zorro_for_each_dev(dev) \
164 for (dev = &zorro_autocon[0]; dev < zorro_autocon+zorro_num_autocon; dev++)
167 /* New-style probing */
168 extern int zorro_register_driver(struct zorro_driver
*);
169 extern void zorro_unregister_driver(struct zorro_driver
*);
170 extern const struct zorro_device_id
*zorro_match_device(const struct zorro_device_id
*ids
, const struct zorro_dev
*z
);
171 static inline struct zorro_driver
*zorro_dev_driver(const struct zorro_dev
*z
)
177 extern unsigned int zorro_num_autocon
; /* # of autoconfig devices found */
178 extern struct zorro_dev zorro_autocon
[ZORRO_NUM_AUTO
];
185 extern struct zorro_dev
*zorro_find_device(zorro_id id
,
186 struct zorro_dev
*from
);
188 #define zorro_resource_start(z) ((z)->resource.start)
189 #define zorro_resource_end(z) ((z)->resource.end)
190 #define zorro_resource_len(z) (resource_size(&(z)->resource))
191 #define zorro_resource_flags(z) ((z)->resource.flags)
193 #define zorro_request_device(z, name) \
194 request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name)
195 #define zorro_release_device(z) \
196 release_mem_region(zorro_resource_start(z), zorro_resource_len(z))
198 /* Similar to the helpers above, these manipulate per-zorro_dev
199 * driver-specific data. They are really just a wrapper around
200 * the generic device structure functions of these calls.
202 static inline void *zorro_get_drvdata (struct zorro_dev
*z
)
204 return dev_get_drvdata(&z
->dev
);
207 static inline void zorro_set_drvdata (struct zorro_dev
*z
, void *data
)
209 dev_set_drvdata(&z
->dev
, data
);
214 * Bitmask indicating portions of available Zorro II RAM that are unused
215 * by the system. Every bit represents a 64K chunk, for a maximum of 8MB
216 * (128 chunks, physical 0x00200000-0x009fffff).
218 * If you want to use (= allocate) portions of this RAM, you should clear
219 * the corresponding bits.
222 extern DECLARE_BITMAP(zorro_unused_z2ram
, 128);
224 #define Z2RAM_START (0x00200000)
225 #define Z2RAM_END (0x00a00000)
226 #define Z2RAM_SIZE (0x00800000)
227 #define Z2RAM_CHUNKSIZE (0x00010000)
228 #define Z2RAM_CHUNKMASK (0x0000ffff)
229 #define Z2RAM_CHUNKSHIFT (16)
232 #endif /* __KERNEL__ */
234 #endif /* _LINUX_ZORRO_H */
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