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
13struct mcp_ops;
14
15struct 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
29struct 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
38void mcp_set_telecom_divisor(struct mcp *, unsigned int);
39void mcp_set_audio_divisor(struct mcp *, unsigned int);
40void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
41unsigned int mcp_reg_read(struct mcp *, unsigned int);
42void mcp_enable(struct mcp *);
43void mcp_disable(struct mcp *);
44#define mcp_get_sclk_rate(mcp)	((mcp)->sclk_rate)
45
46struct mcp *mcp_host_alloc(struct device *, size_t);
47int mcp_host_register(struct mcp *);
48void mcp_host_unregister(struct mcp *);
49
50struct 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
58int mcp_driver_register(struct mcp_driver *);
59void 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
67