forked from Minki/linux
48e29340d5
If all the pieces of iwlwifi are built into the kernel then there's no need for it to export its symbols to other modules, so prevent that. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
142 lines
5.5 KiB
C
142 lines
5.5 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#ifndef __iwl_drv_h__
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#define __iwl_drv_h__
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#include <linux/module.h>
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/* for all modules */
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#define DRV_NAME "iwlwifi"
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#define IWLWIFI_VERSION "in-tree:"
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#define DRV_COPYRIGHT "Copyright(c) 2003-2013 Intel Corporation"
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#define DRV_AUTHOR "<ilw@linux.intel.com>"
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/**
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* DOC: Driver system flows - drv component
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*
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* This component implements the system flows such as bus enumeration, bus
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* removal. Bus dependent parts of system flows (such as iwl_pci_probe) are in
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* bus specific files (transport files). This is the code that is common among
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* different buses.
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*
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* This component is also in charge of managing the several implementations of
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* the wifi flows: it will allow to have several fw API implementation. These
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* different implementations will differ in the way they implement mac80211's
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* handlers too.
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* The init flow wrt to the drv component looks like this:
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* 1) The bus specific component is called from module_init
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* 2) The bus specific component registers the bus driver
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* 3) The bus driver calls the probe function
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* 4) The bus specific component configures the bus
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* 5) The bus specific component calls to the drv bus agnostic part
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* (iwl_drv_start)
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* 6) iwl_drv_start fetches the fw ASYNC, iwl_req_fw_callback
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* 7) iwl_req_fw_callback parses the fw file
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* 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
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*/
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struct iwl_drv;
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struct iwl_trans;
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struct iwl_cfg;
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/**
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* iwl_drv_start - start the drv
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*
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* @trans_ops: the ops of the transport
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* @cfg: device specific constants / virtual functions
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*
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* starts the driver: fetches the firmware. This should be called by bus
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* specific system flows implementations. For example, the bus specific probe
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* function should do bus related operations only, and then call to this
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* function. It returns the driver object or %NULL if an error occured.
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*/
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struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
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const struct iwl_cfg *cfg);
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/**
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* iwl_drv_stop - stop the drv
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*
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* @drv:
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*
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* Stop the driver. This should be called by bus specific system flows
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* implementations. For example, the bus specific remove function should first
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* call this function and then do the bus related operations only.
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*/
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void iwl_drv_stop(struct iwl_drv *drv);
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/*
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* exported symbol management
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*
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* The driver can be split into multiple modules, in which case some symbols
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* must be exported for the sub-modules. However, if it's not split and
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* everything is built-in, then we can avoid that.
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*/
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#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
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#define IWL_EXPORT_SYMBOL(sym) EXPORT_SYMBOL_GPL(sym)
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#else
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#define IWL_EXPORT_SYMBOL(sym)
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#endif
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#endif /* __iwl_drv_h__ */
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