Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / include / linux / superhyway.h
1 /*
2  * include/linux/superhyway.h
3  *
4  * SuperHyway Bus definitions
5  *
6  * Copyright (C) 2004, 2005  Paul Mundt <lethal@linux-sh.org>
7  *
8  * This file is subject to the terms and conditions of the GNU General Public
9  * License.  See the file "COPYING" in the main directory of this archive
10  * for more details.
11  */
12 #ifndef __LINUX_SUPERHYWAY_H
13 #define __LINUX_SUPERHYWAY_H
14
15 #include <linux/device.h>
16
17 /*
18  * SuperHyway IDs
19  */
20 #define SUPERHYWAY_DEVICE_ID_SH5_DMAC   0x0183
21
22 struct superhyway_vcr_info {
23         u8      perr_flags;     /* P-port Error flags */
24         u8      merr_flags;     /* Module Error flags */
25         u16     mod_vers;       /* Module Version */
26         u16     mod_id;         /* Module ID */
27         u8      bot_mb;         /* Bottom Memory block */
28         u8      top_mb;         /* Top Memory block */
29 };
30
31 struct superhyway_ops {
32         int (*read_vcr)(unsigned long base, struct superhyway_vcr_info *vcr);
33         int (*write_vcr)(unsigned long base, struct superhyway_vcr_info vcr);
34 };
35
36 struct superhyway_bus {
37         struct superhyway_ops *ops;
38 };
39
40 extern struct superhyway_bus superhyway_channels[];
41
42 struct superhyway_device_id {
43         unsigned int id;
44         unsigned long driver_data;
45 };
46
47 struct superhyway_device;
48 extern struct bus_type superhyway_bus_type;
49
50 struct superhyway_driver {
51         char *name;
52
53         const struct superhyway_device_id *id_table;
54         struct device_driver drv;
55
56         int (*probe)(struct superhyway_device *dev, const struct superhyway_device_id *id);
57         void (*remove)(struct superhyway_device *dev);
58 };
59
60 #define to_superhyway_driver(d) container_of((d), struct superhyway_driver, drv)
61
62 struct superhyway_device {
63         char name[32];
64
65         struct device dev;
66
67         struct superhyway_device_id id;
68         struct superhyway_driver *drv;
69         struct superhyway_bus *bus;
70
71         int num_resources;
72         struct resource *resource;
73         struct superhyway_vcr_info vcr;
74 };
75
76 #define to_superhyway_device(d) container_of((d), struct superhyway_device, dev)
77
78 #define superhyway_get_drvdata(d)       dev_get_drvdata(&(d)->dev)
79 #define superhyway_set_drvdata(d,p)     dev_set_drvdata(&(d)->dev, (p))
80
81 static inline int
82 superhyway_read_vcr(struct superhyway_device *dev, unsigned long base,
83                     struct superhyway_vcr_info *vcr)
84 {
85         return dev->bus->ops->read_vcr(base, vcr);
86 }
87
88 static inline int
89 superhyway_write_vcr(struct superhyway_device *dev, unsigned long base,
90                      struct superhyway_vcr_info vcr)
91 {
92         return dev->bus->ops->write_vcr(base, vcr);
93 }
94
95 extern int superhyway_scan_bus(struct superhyway_bus *);
96
97 /* drivers/sh/superhyway/superhyway.c */
98 int superhyway_register_driver(struct superhyway_driver *);
99 void superhyway_unregister_driver(struct superhyway_driver *);
100 int superhyway_add_device(unsigned long base, struct superhyway_device *, struct superhyway_bus *);
101 int superhyway_add_devices(struct superhyway_bus *bus, struct superhyway_device **devices, int nr_devices);
102
103 /* drivers/sh/superhyway/superhyway-sysfs.c */
104 extern struct device_attribute superhyway_dev_attrs[];
105
106 #endif /* __LINUX_SUPERHYWAY_H */
107