LXR linux/include/linux/mfd/mcp.h

   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        struct device   attached_device;
  23};
  24
  25struct mcp_ops {
  26        void            (*set_telecom_divisor)(struct mcp *, unsigned int);
  27        void            (*set_audio_divisor)(struct mcp *, unsigned int);
  28        void            (*reg_write)(struct mcp *, unsigned int, unsigned int);
  29        unsigned int    (*reg_read)(struct mcp *, unsigned int);
  30        void            (*enable)(struct mcp *);
  31        void            (*disable)(struct mcp *);
  32};
  33
  34void mcp_set_telecom_divisor(struct mcp *, unsigned int);
  35void mcp_set_audio_divisor(struct mcp *, unsigned int);
  36void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
  37unsigned int mcp_reg_read(struct mcp *, unsigned int);
  38void mcp_enable(struct mcp *);
  39void mcp_disable(struct mcp *);
  40#define mcp_get_sclk_rate(mcp)  ((mcp)->sclk_rate)
  41
  42struct mcp *mcp_host_alloc(struct device *, size_t);
  43int mcp_host_add(struct mcp *, void *);
  44void mcp_host_del(struct mcp *);
  45void mcp_host_free(struct mcp *);
  46
  47struct mcp_driver {
  48        struct device_driver drv;
  49        int (*probe)(struct mcp *);
  50        void (*remove)(struct mcp *);
  51};
  52
  53int mcp_driver_register(struct mcp_driver *);
  54void mcp_driver_unregister(struct mcp_driver *);
  55
  56#define mcp_get_drvdata(mcp)    dev_get_drvdata(&(mcp)->attached_device)
  57#define mcp_set_drvdata(mcp,d)  dev_set_drvdata(&(mcp)->attached_device, d)
  58
  59static inline void *mcp_priv(struct mcp *mcp)
  60{
  61        return mcp + 1;
  62}
  63
  64#endif
  65