drivers/net/wireless/intel/iwlwifi/iwl-drv.h

   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
 109 struct iwl_drv;
 110 struct iwl_trans;
 111 struct 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  */
 122 struct 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  */
 133 void 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__ */