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
  13#include <mach/dma.h>
  14
  15struct mcp_ops;
  16
  17struct mcp {
  18        struct module   *owner;
  19        struct mcp_ops  *ops;
  20        spinlock_t      lock;
  21        int             use_count;
  22        unsigned int    sclk_rate;
  23        unsigned int    rw_timeout;
  24        dma_device_t    dma_audio_rd;
  25        dma_device_t    dma_audio_wr;
  26        dma_device_t    dma_telco_rd;
  27        dma_device_t    dma_telco_wr;
  28        struct device   attached_device;
  29        int             gpio_base;
  30};
  31
  32struct mcp_ops {
  33        void            (*set_telecom_divisor)(struct mcp *, unsigned int);
  34        void            (*set_audio_divisor)(struct mcp *, unsigned int);
  35        void            (*reg_write)(struct mcp *, unsigned int, unsigned int);
  36        unsigned int    (*reg_read)(struct mcp *, unsigned int);
  37        void            (*enable)(struct mcp *);
  38        void            (*disable)(struct mcp *);
  39};
  40
  41void mcp_set_telecom_divisor(struct mcp *, unsigned int);
  42void mcp_set_audio_divisor(struct mcp *, unsigned int);
  43void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
  44unsigned int mcp_reg_read(struct mcp *, unsigned int);
  45void mcp_enable(struct mcp *);
  46void mcp_disable(struct mcp *);
  47#define mcp_get_sclk_rate(mcp)  ((mcp)->sclk_rate)
  48
  49struct mcp *mcp_host_alloc(struct device *, size_t);
  50int mcp_host_register(struct mcp *);
  51void mcp_host_unregister(struct mcp *);
  52
  53struct mcp_driver {
  54        struct device_driver drv;
  55        int (*probe)(struct mcp *);
  56        void (*remove)(struct mcp *);
  57        int (*suspend)(struct mcp *, pm_message_t);
  58        int (*resume)(struct mcp *);
  59};
  60
  61int mcp_driver_register(struct mcp_driver *);
  62void mcp_driver_unregister(struct mcp_driver *);
  63
  64#define mcp_get_drvdata(mcp)    dev_get_drvdata(&(mcp)->attached_device)
  65#define mcp_set_drvdata(mcp,d)  dev_set_drvdata(&(mcp)->attached_device, d)
  66
  67#define mcp_priv(mcp)           ((void *)((mcp)+1))
  68
  69#endif
  70