include/linux/amba/bus.h

   1 /*
   2  *  linux/include/asm-arm/hardware/amba.h
   3  *
   4  *  Copyright (C) 2003 Deep Blue Solutions Ltd, 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 version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef ASMARM_AMBA_H
  11 #define ASMARM_AMBA_H
  12
  13 #define AMBA_NR_IRQS    2
  14
  15 struct amba_device {
  16         struct device           dev;
  17         struct resource         res;
  18         u64                     dma_mask;
  19         unsigned int            periphid;
  20         unsigned int            irq[AMBA_NR_IRQS];
  21 };
  22
  23 struct amba_id {
  24         unsigned int            id;
  25         unsigned int            mask;
  26         void                    *data;
  27 };
  28
  29 struct amba_driver {
  30         struct device_driver    drv;
  31         int                     (*probe)(struct amba_device *, struct amba_id *);
  32         int                     (*remove)(struct amba_device *);
  33         void                    (*shutdown)(struct amba_device *);
  34         int                     (*suspend)(struct amba_device *, pm_message_t);
  35         int                     (*resume)(struct amba_device *);
  36         struct amba_id          *id_table;
  37 };
  38
  39 enum amba_vendor {
  40         AMBA_VENDOR_ARM = 0x41,
  41         AMBA_VENDOR_ST = 0x80,
  42 };
  43
  44 #define amba_get_drvdata(d)     dev_get_drvdata(&d->dev)
  45 #define amba_set_drvdata(d,p)   dev_set_drvdata(&d->dev, p)
  46
  47 int amba_driver_register(struct amba_driver *);
  48 void amba_driver_unregister(struct amba_driver *);
  49 int amba_device_register(struct amba_device *, struct resource *);
  50 void amba_device_unregister(struct amba_device *);
  51 struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
  52 int amba_request_regions(struct amba_device *, const char *);
  53 void amba_release_regions(struct amba_device *);
  54
  55 #define amba_config(d)  (((d)->periphid >> 24) & 0xff)
  56 #define amba_rev(d)     (((d)->periphid >> 20) & 0x0f)
  57 #define amba_manf(d)    (((d)->periphid >> 12) & 0xff)
  58 #define amba_part(d)    ((d)->periphid & 0xfff)
  59
  60 #endif