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1 /*
2  *  linux/include/asm-arm/hardware/amba.h
3  *
4  *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #ifndef ASMARM_AMBA_H
11 #define ASMARM_AMBA_H
12 
13 #define AMBA_NR_IRQS	2
14 
15 struct amba_device {
16 	struct device		dev;
17 	struct resource		res;
18 	u64			dma_mask;
19 	unsigned int		periphid;
20 	unsigned int		irq[AMBA_NR_IRQS];
21 };
22 
23 struct amba_id {
24 	unsigned int		id;
25 	unsigned int		mask;
26 	void			*data;
27 };
28 
29 struct amba_driver {
30 	struct device_driver	drv;
31 	int			(*probe)(struct amba_device *, void *);
32 	int			(*remove)(struct amba_device *);
33 	void			(*shutdown)(struct amba_device *);
34 	int			(*suspend)(struct amba_device *, pm_message_t);
35 	int			(*resume)(struct amba_device *);
36 	struct amba_id		*id_table;
37 };
38 
39 #define amba_get_drvdata(d)	dev_get_drvdata(&d->dev)
40 #define amba_set_drvdata(d,p)	dev_set_drvdata(&d->dev, p)
41 
42 int amba_driver_register(struct amba_driver *);
43 void amba_driver_unregister(struct amba_driver *);
44 int amba_device_register(struct amba_device *, struct resource *);
45 void amba_device_unregister(struct amba_device *);
46 struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
47 int amba_request_regions(struct amba_device *, const char *);
48 void amba_release_regions(struct amba_device *);
49 
50 #define amba_config(d)	(((d)->periphid >> 24) & 0xff)
51 #define amba_rev(d)	(((d)->periphid >> 20) & 0x0f)
52 #define amba_manf(d)	(((d)->periphid >> 12) & 0xff)
53 #define amba_part(d)	((d)->periphid & 0xfff)
54 
55 #endif
56