240 lines
8.2 KiB
C
Executable File
240 lines
8.2 KiB
C
Executable File
/*
|
|
* Linux WiMax
|
|
* API for user space
|
|
*
|
|
*
|
|
* Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
* Intel Corporation <linux-wimax@intel.com>
|
|
* Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
|
|
* - Initial implementation
|
|
*
|
|
*
|
|
* This file declares the user/kernel protocol that is spoken over
|
|
* Generic Netlink, as well as any type declaration that is to be used
|
|
* by kernel and user space.
|
|
*
|
|
* It is intended for user space to clone it verbatim to use it as a
|
|
* primary reference for definitions.
|
|
*
|
|
* Stuff intended for kernel usage as well as full protocol and stack
|
|
* documentation is rooted in include/net/wimax.h.
|
|
*/
|
|
|
|
#ifndef __LINUX__WIMAX_H__
|
|
#define __LINUX__WIMAX_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
enum {
|
|
/**
|
|
* Version of the interface (unsigned decimal, MMm, max 25.5)
|
|
* M - Major: change if removing or modifying an existing call.
|
|
* m - minor: change when adding a new call
|
|
*/
|
|
WIMAX_GNL_VERSION = 01,
|
|
/* Generic NetLink attributes */
|
|
WIMAX_GNL_ATTR_INVALID = 0x00,
|
|
WIMAX_GNL_ATTR_MAX = 10,
|
|
};
|
|
|
|
|
|
/*
|
|
* Generic NetLink operations
|
|
*
|
|
* Most of these map to an API call; _OP_ stands for operation, _RP_
|
|
* for reply and _RE_ for report (aka: signal).
|
|
*/
|
|
enum {
|
|
WIMAX_GNL_OP_MSG_FROM_USER, /* User to kernel message */
|
|
WIMAX_GNL_OP_MSG_TO_USER, /* Kernel to user message */
|
|
WIMAX_GNL_OP_RFKILL, /* Run wimax_rfkill() */
|
|
WIMAX_GNL_OP_RESET, /* Run wimax_rfkill() */
|
|
WIMAX_GNL_RE_STATE_CHANGE, /* Report: status change */
|
|
WIMAX_GNL_OP_STATE_GET, /* Request for current state */
|
|
};
|
|
|
|
|
|
/* Message from user / to user */
|
|
enum {
|
|
WIMAX_GNL_MSG_IFIDX = 1,
|
|
WIMAX_GNL_MSG_PIPE_NAME,
|
|
WIMAX_GNL_MSG_DATA,
|
|
};
|
|
|
|
|
|
/*
|
|
* wimax_rfkill()
|
|
*
|
|
* The state of the radio (ON/OFF) is mapped to the rfkill subsystem's
|
|
* switch state (DISABLED/ENABLED).
|
|
*/
|
|
enum wimax_rf_state {
|
|
WIMAX_RF_OFF = 0, /* Radio is off, rfkill on/enabled */
|
|
WIMAX_RF_ON = 1, /* Radio is on, rfkill off/disabled */
|
|
WIMAX_RF_QUERY = 2,
|
|
};
|
|
|
|
/* Attributes */
|
|
enum {
|
|
WIMAX_GNL_RFKILL_IFIDX = 1,
|
|
WIMAX_GNL_RFKILL_STATE,
|
|
};
|
|
|
|
|
|
/* Attributes for wimax_reset() */
|
|
enum {
|
|
WIMAX_GNL_RESET_IFIDX = 1,
|
|
};
|
|
|
|
/* Attributes for wimax_state_get() */
|
|
enum {
|
|
WIMAX_GNL_STGET_IFIDX = 1,
|
|
};
|
|
|
|
/*
|
|
* Attributes for the Report State Change
|
|
*
|
|
* For now we just have the old and new states; new attributes might
|
|
* be added later on.
|
|
*/
|
|
enum {
|
|
WIMAX_GNL_STCH_IFIDX = 1,
|
|
WIMAX_GNL_STCH_STATE_OLD,
|
|
WIMAX_GNL_STCH_STATE_NEW,
|
|
};
|
|
|
|
|
|
/**
|
|
* enum wimax_st - The different states of a WiMAX device
|
|
* @__WIMAX_ST_NULL: The device structure has been allocated and zeroed,
|
|
* but still wimax_dev_add() hasn't been called. There is no state.
|
|
*
|
|
* @WIMAX_ST_DOWN: The device has been registered with the WiMAX and
|
|
* networking stacks, but it is not initialized (normally that is
|
|
* done with 'ifconfig DEV up' [or equivalent], which can upload
|
|
* firmware and enable communications with the device).
|
|
* In this state, the device is powered down and using as less
|
|
* power as possible.
|
|
* This state is the default after a call to wimax_dev_add(). It
|
|
* is ok to have drivers move directly to %WIMAX_ST_UNINITIALIZED
|
|
* or %WIMAX_ST_RADIO_OFF in _probe() after the call to
|
|
* wimax_dev_add().
|
|
* It is recommended that the driver leaves this state when
|
|
* calling 'ifconfig DEV up' and enters it back on 'ifconfig DEV
|
|
* down'.
|
|
*
|
|
* @__WIMAX_ST_QUIESCING: The device is being torn down, so no API
|
|
* operations are allowed to proceed except the ones needed to
|
|
* complete the device clean up process.
|
|
*
|
|
* @WIMAX_ST_UNINITIALIZED: [optional] Communication with the device
|
|
* is setup, but the device still requires some configuration
|
|
* before being operational.
|
|
* Some WiMAX API calls might work.
|
|
*
|
|
* @WIMAX_ST_RADIO_OFF: The device is fully up; radio is off (wether
|
|
* by hardware or software switches).
|
|
* It is recommended to always leave the device in this state
|
|
* after initialization.
|
|
*
|
|
* @WIMAX_ST_READY: The device is fully up and radio is on.
|
|
*
|
|
* @WIMAX_ST_SCANNING: [optional] The device has been instructed to
|
|
* scan. In this state, the device cannot be actively connected to
|
|
* a network.
|
|
*
|
|
* @WIMAX_ST_CONNECTING: The device is connecting to a network. This
|
|
* state exists because in some devices, the connect process can
|
|
* include a number of negotiations between user space, kernel
|
|
* space and the device. User space needs to know what the device
|
|
* is doing. If the connect sequence in a device is atomic and
|
|
* fast, the device can transition directly to CONNECTED
|
|
*
|
|
* @WIMAX_ST_CONNECTED: The device is connected to a network.
|
|
*
|
|
* @__WIMAX_ST_INVALID: This is an invalid state used to mark the
|
|
* maximum numeric value of states.
|
|
*
|
|
* Description:
|
|
*
|
|
* Transitions from one state to another one are atomic and can only
|
|
* be caused in kernel space with wimax_state_change(). To read the
|
|
* state, use wimax_state_get().
|
|
*
|
|
* States starting with __ are internal and shall not be used or
|
|
* referred to by drivers or userspace. They look ugly, but that's the
|
|
* point -- if any use is made non-internal to the stack, it is easier
|
|
* to catch on review.
|
|
*
|
|
* All API operations [with well defined exceptions] will take the
|
|
* device mutex before starting and then check the state. If the state
|
|
* is %__WIMAX_ST_NULL, %WIMAX_ST_DOWN, %WIMAX_ST_UNINITIALIZED or
|
|
* %__WIMAX_ST_QUIESCING, it will drop the lock and quit with
|
|
* -%EINVAL, -%ENOMEDIUM, -%ENOTCONN or -%ESHUTDOWN.
|
|
*
|
|
* The order of the definitions is important, so we can do numerical
|
|
* comparisons (eg: < %WIMAX_ST_RADIO_OFF means the device is not ready
|
|
* to operate).
|
|
*/
|
|
/*
|
|
* The allowed state transitions are described in the table below
|
|
* (states in rows can go to states in columns where there is an X):
|
|
*
|
|
* UNINI RADIO READY SCAN CONNEC CONNEC
|
|
* NULL DOWN QUIESCING TIALIZED OFF NING TING TED
|
|
* NULL - x
|
|
* DOWN - x x x
|
|
* QUIESCING x -
|
|
* UNINITIALIZED x - x
|
|
* RADIO_OFF x - x
|
|
* READY x x - x x x
|
|
* SCANNING x x x - x x
|
|
* CONNECTING x x x x - x
|
|
* CONNECTED x x x -
|
|
*
|
|
* This table not available in kernel-doc because the formatting messes it up.
|
|
*/
|
|
enum wimax_st {
|
|
__WIMAX_ST_NULL = 0,
|
|
WIMAX_ST_DOWN,
|
|
__WIMAX_ST_QUIESCING,
|
|
WIMAX_ST_UNINITIALIZED,
|
|
WIMAX_ST_RADIO_OFF,
|
|
WIMAX_ST_READY,
|
|
WIMAX_ST_SCANNING,
|
|
WIMAX_ST_CONNECTING,
|
|
WIMAX_ST_CONNECTED,
|
|
__WIMAX_ST_INVALID /* Always keep last */
|
|
};
|
|
|
|
|
|
#endif /* #ifndef __LINUX__WIMAX_H__ */
|