linux/drivers/net/wireless/intel/iwlwifi/iwl-drv.h
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   1/******************************************************************************
   2 *
   3 * This file is provided under a dual BSD/GPLv2 license.  When using or
   4 * redistributing this file, you may do so under either license.
   5 *
   6 * GPL LICENSE SUMMARY
   7 *
   8 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
   9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of version 2 of the GNU General Public License as
  13 * published by the Free Software Foundation.
  14 *
  15 * This program is distributed in the hope that it will be useful, but
  16 * WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 * General Public License for more details.
  19 *
  20 * The full GNU General Public License is included in this distribution
  21 * in the file called COPYING.
  22 *
  23 * Contact Information:
  24 *  Intel Linux Wireless <linuxwifi@intel.com>
  25 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26 *
  27 * BSD LICENSE
  28 *
  29 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  30 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  31 * All rights reserved.
  32 *
  33 * Redistribution and use in source and binary forms, with or without
  34 * modification, are permitted provided that the following conditions
  35 * are met:
  36 *
  37 *  * Redistributions of source code must retain the above copyright
  38 *    notice, this list of conditions and the following disclaimer.
  39 *  * Redistributions in binary form must reproduce the above copyright
  40 *    notice, this list of conditions and the following disclaimer in
  41 *    the documentation and/or other materials provided with the
  42 *    distribution.
  43 *  * Neither the name Intel Corporation nor the names of its
  44 *    contributors may be used to endorse or promote products derived
  45 *    from this software without specific prior written permission.
  46 *
  47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  50 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  51 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  52 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  53 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  58 *****************************************************************************/
  59
  60#ifndef __iwl_drv_h__
  61#define __iwl_drv_h__
  62#include <linux/export.h>
  63
  64/* for all modules */
  65#define DRV_NAME        "iwlwifi"
  66#define DRV_COPYRIGHT   "Copyright(c) 2003- 2015 Intel Corporation"
  67#define DRV_AUTHOR     "<linuxwifi@intel.com>"
  68
  69/* radio config bits (actual values from NVM definition) */
  70#define NVM_RF_CFG_DASH_MSK(x)   (x & 0x3)         /* bits 0-1   */
  71#define NVM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
  72#define NVM_RF_CFG_TYPE_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
  73#define NVM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
  74#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
  75#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
  76
  77#define EXT_NVM_RF_CFG_FLAVOR_MSK(x)   ((x) & 0xF)
  78#define EXT_NVM_RF_CFG_DASH_MSK(x)   (((x) >> 4) & 0xF)
  79#define EXT_NVM_RF_CFG_STEP_MSK(x)   (((x) >> 8) & 0xF)
  80#define EXT_NVM_RF_CFG_TYPE_MSK(x)   (((x) >> 12) & 0xFFF)
  81#define EXT_NVM_RF_CFG_TX_ANT_MSK(x) (((x) >> 24) & 0xF)
  82#define EXT_NVM_RF_CFG_RX_ANT_MSK(x) (((x) >> 28) & 0xF)
  83
  84/**
  85 * DOC: Driver system flows - drv component
  86 *
  87 * This component implements the system flows such as bus enumeration, bus
  88 * removal. Bus dependent parts of system flows (such as iwl_pci_probe) are in
  89 * bus specific files (transport files). This is the code that is common among
  90 * different buses.
  91 *
  92 * This component is also in charge of managing the several implementations of
  93 * the wifi flows: it will allow to have several fw API implementation. These
  94 * different implementations will differ in the way they implement mac80211's
  95 * handlers too.
  96
  97 * The init flow wrt to the drv component looks like this:
  98 * 1) The bus specific component is called from module_init
  99 * 2) The bus specific component registers the bus driver
 100 * 3) The bus driver calls the probe function
 101 * 4) The bus specific component configures the bus
 102 * 5) The bus specific component calls to the drv bus agnostic part
 103 *    (iwl_drv_start)
 104 * 6) iwl_drv_start fetches the fw ASYNC, iwl_req_fw_callback
 105 * 7) iwl_req_fw_callback parses the fw file
 106 * 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
 107 */
 108
 109struct iwl_drv;
 110struct iwl_trans;
 111struct iwl_cfg;
 112/**
 113 * iwl_drv_start - start the drv
 114 *
 115 * @trans_ops: the ops of the transport
 116 *
 117 * starts the driver: fetches the firmware. This should be called by bus
 118 * specific system flows implementations. For example, the bus specific probe
 119 * function should do bus related operations only, and then call to this
 120 * function. It returns the driver object or %NULL if an error occurred.
 121 */
 122struct iwl_drv *iwl_drv_start(struct iwl_trans *trans);
 123
 124/**
 125 * iwl_drv_stop - stop the drv
 126 *
 127 * @drv:
 128 *
 129 * Stop the driver. This should be called by bus specific system flows
 130 * implementations. For example, the bus specific remove function should first
 131 * call this function and then do the bus related operations only.
 132 */
 133void iwl_drv_stop(struct iwl_drv *drv);
 134
 135/*
 136 * exported symbol management
 137 *
 138 * The driver can be split into multiple modules, in which case some symbols
 139 * must be exported for the sub-modules. However, if it's not split and
 140 * everything is built-in, then we can avoid that.
 141 */
 142#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
 143#define IWL_EXPORT_SYMBOL(sym)  EXPORT_SYMBOL_GPL(sym)
 144#else
 145#define IWL_EXPORT_SYMBOL(sym)
 146#endif
 147
 148#endif /* __iwl_drv_h__ */
 149