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  *
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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
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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__ */
154