LXR linux/drivers/rapidio/rio.h

   1/*
   2 * RapidIO interconnect services
   3 *
   4 * Copyright 2005 MontaVista Software, Inc.
   5 * Matt Porter <mporter@kernel.crashing.org>
   6 *
   7 * This program is free software; you can redistribute  it and/or modify it
   8 * under  the terms of  the GNU General  Public License as published by the
   9 * Free Software Foundation;  either version 2 of the  License, or (at your
  10 * option) any later version.
  11 */
  12
  13#include <linux/device.h>
  14#include <linux/list.h>
  15#include <linux/rio.h>
  16
  17/* Functions internal to the RIO core code */
  18
  19extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
  20                                 u8 hopcount, int ftr);
  21extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
  22extern int rio_enum_mport(struct rio_mport *mport);
  23extern int rio_disc_mport(struct rio_mport *mport);
  24
  25/* Structures internal to the RIO core code */
  26extern struct device_attribute rio_dev_attrs[];
  27extern spinlock_t rio_global_list_lock;
  28
  29extern struct rio_route_ops __start_rio_route_ops[];
  30extern struct rio_route_ops __end_rio_route_ops[];
  31
  32/* Helpers internal to the RIO core code */
  33#define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook)  \
  34        static struct rio_route_ops __rio_route_ops __attribute_used__   \
  35                __attribute__((__section__(#section))) = { vid, did, add_hook, get_hook };
  36
  37/**
  38 * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
  39 * @vid: RIO vendor ID
  40 * @did: RIO device ID
  41 * @add_hook: Callback that adds a route entry
  42 * @get_hook: Callback that gets a route entry
  43 *
  44 * Manipulating switch route tables in RIO is switch specific. This
  45 * registers a switch by vendor and device ID with two callbacks for
  46 * modifying and retrieving route entries in a switch. A &struct
  47 * rio_route_ops is initialized with the ops and placed into a
  48 * RIO-specific kernel section.
  49 */
  50#define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook)             \
  51        DECLARE_RIO_ROUTE_SECTION(.rio_route_ops,                       \
  52                        vid, did, add_hook, get_hook)
  53
  54#ifdef CONFIG_RAPIDIO_8_BIT_TRANSPORT
  55#define RIO_GET_DID(x)  ((x & 0x00ff0000) >> 16)
  56#define RIO_SET_DID(x)  ((x & 0x000000ff) << 16)
  57#else
  58#define RIO_GET_DID(x)  (x & 0xffff)
  59#define RIO_SET_DID(x)  (x & 0xffff)
  60#endif
  61