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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 | ||
62480dc8 AA |
13 | #include <linux/device.h> |
14 | ||
a4e137ab RK |
15 | struct mcp_ops; |
16 | ||
17 | struct 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; | |
a4e137ab RK |
24 | struct device attached_device; |
25 | }; | |
26 | ||
27 | struct 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 | ||
36 | void mcp_set_telecom_divisor(struct mcp *, unsigned int); | |
37 | void mcp_set_audio_divisor(struct mcp *, unsigned int); | |
38 | void mcp_reg_write(struct mcp *, unsigned int, unsigned int); | |
39 | unsigned int mcp_reg_read(struct mcp *, unsigned int); | |
40 | void mcp_enable(struct mcp *); | |
41 | void mcp_disable(struct mcp *); | |
42 | #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) | |
43 | ||
44 | struct mcp *mcp_host_alloc(struct device *, size_t); | |
abe06082 | 45 | int mcp_host_add(struct mcp *, void *); |
30816ac0 RK |
46 | void mcp_host_del(struct mcp *); |
47 | void mcp_host_free(struct mcp *); | |
a4e137ab RK |
48 | |
49 | struct mcp_driver { | |
50 | struct device_driver drv; | |
51 | int (*probe)(struct mcp *); | |
52 | void (*remove)(struct mcp *); | |
a4e137ab RK |
53 | }; |
54 | ||
55 | int mcp_driver_register(struct mcp_driver *); | |
56 | void 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 | ||
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61 | static inline void *mcp_priv(struct mcp *mcp) |
62 | { | |
63 | return mcp + 1; | |
64 | } | |
a4e137ab RK |
65 | |
66 | #endif |