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a4e137ab RK |
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 | struct mcp_ops; | |
14 | ||
15 | struct mcp { | |
16 | struct module *owner; | |
17 | struct mcp_ops *ops; | |
18 | spinlock_t lock; | |
19 | int use_count; | |
20 | unsigned int sclk_rate; | |
21 | unsigned int rw_timeout; | |
22 | dma_device_t dma_audio_rd; | |
23 | dma_device_t dma_audio_wr; | |
24 | dma_device_t dma_telco_rd; | |
25 | dma_device_t dma_telco_wr; | |
26 | struct device attached_device; | |
27 | }; | |
28 | ||
29 | struct mcp_ops { | |
30 | void (*set_telecom_divisor)(struct mcp *, unsigned int); | |
31 | void (*set_audio_divisor)(struct mcp *, unsigned int); | |
32 | void (*reg_write)(struct mcp *, unsigned int, unsigned int); | |
33 | unsigned int (*reg_read)(struct mcp *, unsigned int); | |
34 | void (*enable)(struct mcp *); | |
35 | void (*disable)(struct mcp *); | |
36 | }; | |
37 | ||
38 | void mcp_set_telecom_divisor(struct mcp *, unsigned int); | |
39 | void mcp_set_audio_divisor(struct mcp *, unsigned int); | |
40 | void mcp_reg_write(struct mcp *, unsigned int, unsigned int); | |
41 | unsigned int mcp_reg_read(struct mcp *, unsigned int); | |
42 | void mcp_enable(struct mcp *); | |
43 | void mcp_disable(struct mcp *); | |
44 | #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) | |
45 | ||
46 | struct mcp *mcp_host_alloc(struct device *, size_t); | |
47 | int mcp_host_register(struct mcp *); | |
48 | void mcp_host_unregister(struct mcp *); | |
49 | ||
50 | struct mcp_driver { | |
51 | struct device_driver drv; | |
52 | int (*probe)(struct mcp *); | |
53 | void (*remove)(struct mcp *); | |
54 | int (*suspend)(struct mcp *, pm_message_t); | |
55 | int (*resume)(struct mcp *); | |
56 | }; | |
57 | ||
58 | int mcp_driver_register(struct mcp_driver *); | |
59 | void mcp_driver_unregister(struct mcp_driver *); | |
60 | ||
61 | #define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device) | |
62 | #define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d) | |
63 | ||
64 | #define mcp_priv(mcp) ((void *)((mcp)+1)) | |
65 | ||
66 | #endif |