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
  19 extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
  20                                  u8 hopcount, int ftr);
  21 extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
  22 extern int rio_enum_mport(struct rio_mport *mport);
  23 extern int rio_disc_mport(struct rio_mport *mport);
  24
  25 /* Structures internal to the RIO core code */
  26 extern struct device_attribute rio_dev_attrs[];
  27 extern spinlock_t rio_global_list_lock;
  28
  29 /* Helpers internal to the RIO core code */
  30 #define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook)  \
  31         static struct rio_route_ops __rio_route_ops __attribute_used__   \
  32                 __attribute__((__section__(#section))) = { vid, did, add_hook, get_hook };
  33
  34 /**
  35  * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
  36  * @vid: RIO vendor ID
  37  * @did: RIO device ID
  38  * @add_hook: Callback that adds a route entry
  39  * @get_hook: Callback that gets a route entry
  40  *
  41  * Manipulating switch route tables in RIO is switch specific. This
  42  * registers a switch by vendor and device ID with two callbacks for
  43  * modifying and retrieving route entries in a switch. A &struct
  44  * rio_route_ops is initialized with the ops and placed into a
  45  * RIO-specific kernel section.
  46  */
  47 #define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook)             \
  48         DECLARE_RIO_ROUTE_SECTION(.rio_route_ops,                       \
  49                         vid, did, add_hook, get_hook)
  50
  51 #ifdef CONFIG_RAPIDIO_8_BIT_TRANSPORT
  52 #define RIO_GET_DID(x)  ((x & 0x00ff0000) >> 16)
  53 #define RIO_SET_DID(x)  ((x & 0x000000ff) << 16)
  54 #else
  55 #define RIO_GET_DID(x)  (x & 0xffff)
  56 #define RIO_SET_DID(x)  (x & 0xffff)
  57 #endif