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  * 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 <linuxwifi@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.
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  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
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  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
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  50  *    from this software without specific prior written permission.
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  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  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     "<linuxwifi@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 EXT_NVM_RF_CFG_FLAVOR_MSK(x)   ((x) & 0xF)
  83 #define EXT_NVM_RF_CFG_DASH_MSK(x)   (((x) >> 4) & 0xF)
  84 #define EXT_NVM_RF_CFG_STEP_MSK(x)   (((x) >> 8) & 0xF)
  85 #define EXT_NVM_RF_CFG_TYPE_MSK(x)   (((x) >> 12) & 0xFFF)
  86 #define EXT_NVM_RF_CFG_TX_ANT_MSK(x) (((x) >> 24) & 0xF)
  87 #define EXT_NVM_RF_CFG_RX_ANT_MSK(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
 114 struct iwl_drv;
 115 struct iwl_trans;
 116 struct iwl_cfg;
 117 /**
 118  * iwl_drv_start - start the drv
 119  *
 120  * @trans_ops: the ops of the transport
 121  *
 122  * starts the driver: fetches the firmware. This should be called by bus
 123  * specific system flows implementations. For example, the bus specific probe
 124  * function should do bus related operations only, and then call to this
 125  * function. It returns the driver object or %NULL if an error occurred.
 126  */
 127 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans);
 128
 129 /**
 130  * iwl_drv_stop - stop the drv
 131  *
 132  * @drv:
 133  *
 134  * Stop the driver. This should be called by bus specific system flows
 135  * implementations. For example, the bus specific remove function should first
 136  * call this function and then do the bus related operations only.
 137  */
 138 void iwl_drv_stop(struct iwl_drv *drv);
 139
 140 /*
 141  * exported symbol management
 142  *
 143  * The driver can be split into multiple modules, in which case some symbols
 144  * must be exported for the sub-modules. However, if it's not split and
 145  * everything is built-in, then we can avoid that.
 146  */
 147 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
 148 #define IWL_EXPORT_SYMBOL(sym)  EXPORT_SYMBOL_GPL(sym)
 149 #else
 150 #define IWL_EXPORT_SYMBOL(sym)
 151 #endif
 152
 153 #endif /* __iwl_drv_h__ */