1/*
2 *  linux/drivers/mfd/mcp.h
3 *
4 *  Copyright (C) 2001 Russell King, 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 as published by
8 * the Free Software Foundation; either version 2 of the License.
9 */
10#ifndef MCP_H
11#define MCP_H
12
13#include <linux/device.h>
14
15struct mcp_ops;
16
17struct mcp {
18	struct module	*owner;
19	struct mcp_ops	*ops;
20	spinlock_t	lock;
21	int		use_count;
22	unsigned int	sclk_rate;
23	unsigned int	rw_timeout;
24	struct device	attached_device;
25};
26
27struct mcp_ops {
28	void		(*set_telecom_divisor)(struct mcp *, unsigned int);
29	void		(*set_audio_divisor)(struct mcp *, unsigned int);
30	void		(*reg_write)(struct mcp *, unsigned int, unsigned int);
31	unsigned int	(*reg_read)(struct mcp *, unsigned int);
32	void		(*enable)(struct mcp *);
33	void		(*disable)(struct mcp *);
34};
35
36void mcp_set_telecom_divisor(struct mcp *, unsigned int);
37void mcp_set_audio_divisor(struct mcp *, unsigned int);
38void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
39unsigned int mcp_reg_read(struct mcp *, unsigned int);
40void mcp_enable(struct mcp *);
41void mcp_disable(struct mcp *);
42#define mcp_get_sclk_rate(mcp)	((mcp)->sclk_rate)
43
44struct mcp *mcp_host_alloc(struct device *, size_t);
45int mcp_host_add(struct mcp *, void *);
46void mcp_host_del(struct mcp *);
47void mcp_host_free(struct mcp *);
48
49struct mcp_driver {
50	struct device_driver drv;
51	int (*probe)(struct mcp *);
52	void (*remove)(struct mcp *);
53};
54
55int mcp_driver_register(struct mcp_driver *);
56void mcp_driver_unregister(struct mcp_driver *);
57
58#define mcp_get_drvdata(mcp)	dev_get_drvdata(&(mcp)->attached_device)
59#define mcp_set_drvdata(mcp,d)	dev_set_drvdata(&(mcp)->attached_device, d)
60
61static inline void *mcp_priv(struct mcp *mcp)
62{
63	return mcp + 1;
64}
65
66#endif
67