mcp.h
1.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
/*
* linux/drivers/mfd/mcp.h
*
* Copyright (C) 2001 Russell King, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#ifndef MCP_H
#define MCP_H
#include <linux/device.h>
struct mcp_ops;
struct mcp {
struct module *owner;
struct mcp_ops *ops;
spinlock_t lock;
int use_count;
unsigned int sclk_rate;
unsigned int rw_timeout;
struct device attached_device;
};
struct mcp_ops {
void (*set_telecom_divisor)(struct mcp *, unsigned int);
void (*set_audio_divisor)(struct mcp *, unsigned int);
void (*reg_write)(struct mcp *, unsigned int, unsigned int);
unsigned int (*reg_read)(struct mcp *, unsigned int);
void (*enable)(struct mcp *);
void (*disable)(struct mcp *);
};
void mcp_set_telecom_divisor(struct mcp *, unsigned int);
void mcp_set_audio_divisor(struct mcp *, unsigned int);
void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
unsigned int mcp_reg_read(struct mcp *, unsigned int);
void mcp_enable(struct mcp *);
void mcp_disable(struct mcp *);
#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
struct mcp *mcp_host_alloc(struct device *, size_t);
int mcp_host_add(struct mcp *, void *);
void mcp_host_del(struct mcp *);
void mcp_host_free(struct mcp *);
struct mcp_driver {
struct device_driver drv;
int (*probe)(struct mcp *);
void (*remove)(struct mcp *);
};
int mcp_driver_register(struct mcp_driver *);
void mcp_driver_unregister(struct mcp_driver *);
#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
static inline void *mcp_priv(struct mcp *mcp)
{
return mcp + 1;
}
#endif