drivers/staging/rtl8192e/dot11d.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /******************************************************************************
   3  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * Contact Information:
   6  * wlanfae <wlanfae@realtek.com>
   7  ******************************************************************************/
   8 #ifndef __INC_DOT11D_H
   9 #define __INC_DOT11D_H
  10
  11 #include "rtllib.h"
  12
  13 struct chnl_txpow_triple {
  14         u8 first_channel;
  15         u8  num_channels;
  16         u8  max_tx_power;
  17 };
  18
  19 enum dot11d_state {
  20         DOT11D_STATE_NONE = 0,
  21         DOT11D_STATE_LEARNED,
  22         DOT11D_STATE_DONE,
  23 };
  24
  25 /**
  26  * struct rt_dot11d_info * @country_len: value greater than 0 if
  27  *                @country_buffer contains valid country information element.
  28  * @channel_map: holds channel values
  29  *              0 - invalid,
  30  *              1 - valid (active scan),
  31  *              2 - valid (passive scan)
  32  * @country_src_addr - Source AP of the country IE
  33  */
  34
  35 struct rt_dot11d_info {
  36         bool enabled;
  37
  38         u16 country_len;
  39         u8  country_buffer[MAX_IE_LEN];
  40         u8  country_src_addr[6];
  41         u8  country_watchdog;
  42
  43         u8  channel_map[MAX_CHANNEL_NUMBER + 1];
  44         u8  max_tx_power_list[MAX_CHANNEL_NUMBER + 1];
  45
  46         enum dot11d_state state;
  47 };
  48
  49 static inline void copy_mac_addr(unsigned char *des, unsigned char *src)
  50 {
  51         memcpy(des, src, 6);
  52 }
  53
  54 #define GET_DOT11D_INFO(__ieee_dev)                     \
  55          ((struct rt_dot11d_info *)((__ieee_dev)->dot11d_info))
  56
  57 #define IS_DOT11D_ENABLE(__ieee_dev)                    \
  58          (GET_DOT11D_INFO(__ieee_dev)->enabled)
  59 #define IS_COUNTRY_IE_VALID(__ieee_dev)                 \
  60         (GET_DOT11D_INFO(__ieee_dev)->country_len > 0)
  61
  62 #define IS_EQUAL_CIE_SRC(__ieee_dev, __address)         \
  63          ether_addr_equal_unaligned( \
  64                 GET_DOT11D_INFO(__ieee_dev)->country_src_addr, __address)
  65 #define UPDATE_CIE_SRC(__ieee_dev, __address)           \
  66         copy_mac_addr(GET_DOT11D_INFO(__ieee_dev)->country_src_addr, __address)
  67
  68 #define GET_CIE_WATCHDOG(__ieee_dev)                            \
  69          (GET_DOT11D_INFO(__ieee_dev)->country_watchdog)
  70 static inline void RESET_CIE_WATCHDOG(struct rtllib_device *__ieee_dev)
  71 {
  72         GET_CIE_WATCHDOG(__ieee_dev) = 0;
  73 }
  74
  75 #define UPDATE_CIE_WATCHDOG(__ieee_dev) (++GET_CIE_WATCHDOG(__ieee_dev))
  76
  77 void dot11d_init(struct rtllib_device *dev);
  78 void dot11d_channel_map(u8 channel_plan, struct rtllib_device *ieee);
  79 void dot11d_reset(struct rtllib_device *dev);
  80 void dot11d_update_country(struct rtllib_device *dev, u8 *address,
  81                            u16 country_len, u8 *country);
  82 void dot11d_scan_complete(struct rtllib_device *dev);
  83
  84 #endif