mcp.h

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/*
 *  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

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