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TOMOYO Linux Cross Reference
Linux/include/linux/zorro.h

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  1 /*
  2  *  linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
  3  *
  4  *  Copyright (C) 1995--2003 Geert Uytterhoeven
  5  *
  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
  8  *  for more details.
  9  */
 10 
 11 #ifndef _LINUX_ZORRO_H
 12 #define _LINUX_ZORRO_H
 13 
 14 
 15 #include <uapi/linux/zorro.h>
 16 
 17 #include <linux/device.h>
 18 #include <linux/init.h>
 19 #include <linux/ioport.h>
 20 #include <linux/mod_devicetable.h>
 21 
 22 #include <asm/zorro.h>
 23 
 24 
 25     /*
 26      *  Zorro devices
 27      */
 28 
 29 struct zorro_dev {
 30     struct ExpansionRom rom;
 31     zorro_id id;
 32     struct zorro_driver *driver;        /* which driver has allocated this device */
 33     struct device dev;                  /* Generic device interface */
 34     u16 slotaddr;
 35     u16 slotsize;
 36     char name[64];
 37     struct resource resource;
 38 };
 39 
 40 #define to_zorro_dev(n) container_of(n, struct zorro_dev, dev)
 41 
 42 
 43     /*
 44      *  Zorro bus
 45      */
 46 
 47 extern struct bus_type zorro_bus_type;
 48 
 49 
 50     /*
 51      *  Zorro device drivers
 52      */
 53 
 54 struct zorro_driver {
 55     struct list_head node;
 56     char *name;
 57     const struct zorro_device_id *id_table;     /* NULL if wants all devices */
 58     int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id);        /* New device inserted */
 59     void (*remove)(struct zorro_dev *z);        /* Device removed (NULL if not a hot-plug capable driver) */
 60     struct device_driver driver;
 61 };
 62 
 63 #define to_zorro_driver(drv)    container_of(drv, struct zorro_driver, driver)
 64 
 65 
 66 #define zorro_for_each_dev(dev) \
 67         for (dev = &zorro_autocon[0]; dev < zorro_autocon+zorro_num_autocon; dev++)
 68 
 69 
 70 /* New-style probing */
 71 extern int zorro_register_driver(struct zorro_driver *);
 72 extern void zorro_unregister_driver(struct zorro_driver *);
 73 extern const struct zorro_device_id *zorro_match_device(const struct zorro_device_id *ids, const struct zorro_dev *z);
 74 static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z)
 75 {
 76     return z->driver;
 77 }
 78 
 79 
 80 extern unsigned int zorro_num_autocon;  /* # of autoconfig devices found */
 81 extern struct zorro_dev *zorro_autocon;
 82 
 83 
 84     /*
 85      * Minimal information about a Zorro device, passed from bootinfo
 86      * Only available temporarily, i.e. until initmem has been freed!
 87      */
 88 
 89 struct zorro_dev_init {
 90         struct ExpansionRom rom;
 91         u16 slotaddr;
 92         u16 slotsize;
 93         u32 boardaddr;
 94         u32 boardsize;
 95 };
 96 
 97 extern struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata;
 98 
 99 
100     /*
101      *  Zorro Functions
102      */
103 
104 extern struct zorro_dev *zorro_find_device(zorro_id id,
105                                            struct zorro_dev *from);
106 
107 #define zorro_resource_start(z) ((z)->resource.start)
108 #define zorro_resource_end(z)   ((z)->resource.end)
109 #define zorro_resource_len(z)   (resource_size(&(z)->resource))
110 #define zorro_resource_flags(z) ((z)->resource.flags)
111 
112 #define zorro_request_device(z, name) \
113     request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name)
114 #define zorro_release_device(z) \
115     release_mem_region(zorro_resource_start(z), zorro_resource_len(z))
116 
117 /* Similar to the helpers above, these manipulate per-zorro_dev
118  * driver-specific data.  They are really just a wrapper around
119  * the generic device structure functions of these calls.
120  */
121 static inline void *zorro_get_drvdata (struct zorro_dev *z)
122 {
123         return dev_get_drvdata(&z->dev);
124 }
125 
126 static inline void zorro_set_drvdata (struct zorro_dev *z, void *data)
127 {
128         dev_set_drvdata(&z->dev, data);
129 }
130 
131 
132     /*
133      *  Bitmask indicating portions of available Zorro II RAM that are unused
134      *  by the system. Every bit represents a 64K chunk, for a maximum of 8MB
135      *  (128 chunks, physical 0x00200000-0x009fffff).
136      *
137      *  If you want to use (= allocate) portions of this RAM, you should clear
138      *  the corresponding bits.
139      */
140 
141 extern DECLARE_BITMAP(zorro_unused_z2ram, 128);
142 
143 #define Z2RAM_START             (0x00200000)
144 #define Z2RAM_END               (0x00a00000)
145 #define Z2RAM_SIZE              (0x00800000)
146 #define Z2RAM_CHUNKSIZE         (0x00010000)
147 #define Z2RAM_CHUNKMASK         (0x0000ffff)
148 #define Z2RAM_CHUNKSHIFT        (16)
149 
150 
151 #endif /* _LINUX_ZORRO_H */
152 

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