LXR linux/drivers/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        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