Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1/*
2 * linux/include/amba/bus.h
3 *
4 * This device type deals with ARM PrimeCells and anything else that
5 * presents a proper CID (0xB105F00D) at the end of the I/O register
6 * region or that is derived from a PrimeCell.
7 *
8 * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#ifndef ASMARM_AMBA_H
15#define ASMARM_AMBA_H
16
17#define AMBA_NR_IRQS 2
18
19struct amba_device {
20 struct device dev;
21 struct resource res;
22 u64 dma_mask;
23 unsigned int periphid;
24 unsigned int irq[AMBA_NR_IRQS];
25};
26
27struct amba_id {
28 unsigned int id;
29 unsigned int mask;
30 void *data;
31};
32
33struct amba_driver {
34 struct device_driver drv;
35 int (*probe)(struct amba_device *, struct amba_id *);
36 int (*remove)(struct amba_device *);
37 void (*shutdown)(struct amba_device *);
38 int (*suspend)(struct amba_device *, pm_message_t);
39 int (*resume)(struct amba_device *);
40 struct amba_id *id_table;
41};
42
43enum amba_vendor {
44 AMBA_VENDOR_ARM = 0x41,
45 AMBA_VENDOR_ST = 0x80,
46};
47
48#define amba_get_drvdata(d) dev_get_drvdata(&d->dev)
49#define amba_set_drvdata(d,p) dev_set_drvdata(&d->dev, p)
50
51int amba_driver_register(struct amba_driver *);
52void amba_driver_unregister(struct amba_driver *);
53int amba_device_register(struct amba_device *, struct resource *);
54void amba_device_unregister(struct amba_device *);
55struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
56int amba_request_regions(struct amba_device *, const char *);
57void amba_release_regions(struct amba_device *);
58
59#define amba_config(d) (((d)->periphid >> 24) & 0xff)
60#define amba_rev(d) (((d)->periphid >> 20) & 0x0f)
61#define amba_manf(d) (((d)->periphid >> 12) & 0xff)
62#define amba_part(d) ((d)->periphid & 0xfff)
63
64#endif