linux/drivers/net/wireless/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 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23 * USA
  24 *
  25 * The full GNU General Public License is included in this distribution
  26 * in the file called COPYING.
  27 *
  28 * Contact Information:
  29 *  Intel Linux Wireless <ilw@linux.intel.com>
  30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31 *
  32 * BSD LICENSE
  33 *
  34 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  36 * All rights reserved.
  37 *
  38 * Redistribution and use in source and binary forms, with or without
  39 * modification, are permitted provided that the following conditions
  40 * are met:
  41 *
  42 *  * Redistributions of source code must retain the above copyright
  43 *    notice, this list of conditions and the following disclaimer.
  44 *  * Redistributions in binary form must reproduce the above copyright
  45 *    notice, this list of conditions and the following disclaimer in
  46 *    the documentation and/or other materials provided with the
  47 *    distribution.
  48 *  * Neither the name Intel Corporation nor the names of its
  49 *    contributors may be used to endorse or promote products derived
  50 *    from this software without specific prior written permission.
  51 *
  52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63 *****************************************************************************/
  64
  65#ifndef __iwl_drv_h__
  66#define __iwl_drv_h__
  67#include <linux/export.h>
  68
  69/* for all modules */
  70#define DRV_NAME        "iwlwifi"
  71#define DRV_COPYRIGHT   "Copyright(c) 2003- 2015 Intel Corporation"
  72#define DRV_AUTHOR     "<ilw@linux.intel.com>"
  73
  74/* radio config bits (actual values from NVM definition) */
  75#define NVM_RF_CFG_DASH_MSK(x)   (x & 0x3)         /* bits 0-1   */
  76#define NVM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
  77#define NVM_RF_CFG_TYPE_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
  78#define NVM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
  79#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
  80#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
  81
  82#define NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(x)   (x & 0xF)
  83#define NVM_RF_CFG_DASH_MSK_FAMILY_8000(x)   ((x >> 4) & 0xF)
  84#define NVM_RF_CFG_STEP_MSK_FAMILY_8000(x)   ((x >> 8) & 0xF)
  85#define NVM_RF_CFG_TYPE_MSK_FAMILY_8000(x)   ((x >> 12) & 0xFFF)
  86#define NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(x) ((x >> 24) & 0xF)
  87#define NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(x) ((x >> 28) & 0xF)
  88
  89/**
  90 * DOC: Driver system flows - drv component
  91 *
  92 * This component implements the system flows such as bus enumeration, bus
  93 * removal. Bus dependent parts of system flows (such as iwl_pci_probe) are in
  94 * bus specific files (transport files). This is the code that is common among
  95 * different buses.
  96 *
  97 * This component is also in charge of managing the several implementations of
  98 * the wifi flows: it will allow to have several fw API implementation. These
  99 * different implementations will differ in the way they implement mac80211's
 100 * handlers too.
 101
 102 * The init flow wrt to the drv component looks like this:
 103 * 1) The bus specific component is called from module_init
 104 * 2) The bus specific component registers the bus driver
 105 * 3) The bus driver calls the probe function
 106 * 4) The bus specific component configures the bus
 107 * 5) The bus specific component calls to the drv bus agnostic part
 108 *    (iwl_drv_start)
 109 * 6) iwl_drv_start fetches the fw ASYNC, iwl_req_fw_callback
 110 * 7) iwl_req_fw_callback parses the fw file
 111 * 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
 112 */
 113
 114struct iwl_drv;
 115struct iwl_trans;
 116struct iwl_cfg;
 117/**
 118 * iwl_drv_start - start the drv
 119 *
 120 * @trans_ops: the ops of the transport
 121 * @cfg: device specific constants / virtual functions
 122 *
 123 * starts the driver: fetches the firmware. This should be called by bus
 124 * specific system flows implementations. For example, the bus specific probe
 125 * function should do bus related operations only, and then call to this
 126 * function. It returns the driver object or %NULL if an error occurred.
 127 */
 128struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
 129                              const struct iwl_cfg *cfg);
 130
 131/**
 132 * iwl_drv_stop - stop the drv
 133 *
 134 * @drv:
 135 *
 136 * Stop the driver. This should be called by bus specific system flows
 137 * implementations. For example, the bus specific remove function should first
 138 * call this function and then do the bus related operations only.
 139 */
 140void iwl_drv_stop(struct iwl_drv *drv);
 141
 142/*
 143 * exported symbol management
 144 *
 145 * The driver can be split into multiple modules, in which case some symbols
 146 * must be exported for the sub-modules. However, if it's not split and
 147 * everything is built-in, then we can avoid that.
 148 */
 149#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
 150#define IWL_EXPORT_SYMBOL(sym)  EXPORT_SYMBOL_GPL(sym)
 151#else
 152#define IWL_EXPORT_SYMBOL(sym)
 153#endif
 154
 155#endif /* __iwl_drv_h__ */
 156