drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2013  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * The full GNU General Public License is included in this distribution in the
  15  * file called LICENSE.
  16  *
  17  * Contact Information:
  18  * wlanfae <wlanfae@realtek.com>
  19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20  * Hsinchu 300, Taiwan.
  21  *
  22  * Larry Finger <Larry.Finger@lwfinger.net>
  23  *
  24  *****************************************************************************/
  25 #include "../wifi.h"
  26 #include <linux/vmalloc.h>
  27 #include <linux/module.h>
  28
  29 #include "rtl_btc.h"
  30 #include "halbt_precomp.h"
  31
  32 static struct rtl_btc_ops rtl_btc_operation = {
  33         .btc_init_variables = rtl_btc_init_variables,
  34         .btc_init_hal_vars = rtl_btc_init_hal_vars,
  35         .btc_init_hw_config = rtl_btc_init_hw_config,
  36         .btc_ips_notify = rtl_btc_ips_notify,
  37         .btc_lps_notify = rtl_btc_lps_notify,
  38         .btc_scan_notify = rtl_btc_scan_notify,
  39         .btc_connect_notify = rtl_btc_connect_notify,
  40         .btc_mediastatus_notify = rtl_btc_mediastatus_notify,
  41         .btc_periodical = rtl_btc_periodical,
  42         .btc_halt_notify = rtl_btc_halt_notify,
  43         .btc_btinfo_notify = rtl_btc_btinfo_notify,
  44         .btc_is_limited_dig = rtl_btc_is_limited_dig,
  45         .btc_is_disable_edca_turbo = rtl_btc_is_disable_edca_turbo,
  46         .btc_is_bt_disabled = rtl_btc_is_bt_disabled,
  47         .btc_special_packet_notify = rtl_btc_special_packet_notify,
  48 };
  49
  50 void rtl_btc_init_variables(struct rtl_priv *rtlpriv)
  51 {
  52         exhalbtc_initlize_variables(rtlpriv);
  53 }
  54
  55 void rtl_btc_init_hal_vars(struct rtl_priv *rtlpriv)
  56 {
  57         u8 ant_num;
  58         u8 bt_exist;
  59         u8 bt_type;
  60
  61         ant_num = rtl_get_hwpg_ant_num(rtlpriv);
  62         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
  63                  "%s, antNum is %d\n", __func__, ant_num);
  64
  65         bt_exist = rtl_get_hwpg_bt_exist(rtlpriv);
  66         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
  67                  "%s, bt_exist is %d\n", __func__, bt_exist);
  68         exhalbtc_set_bt_exist(bt_exist);
  69
  70         bt_type = rtl_get_hwpg_bt_type(rtlpriv);
  71         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "%s, bt_type is %d\n",
  72                  __func__, bt_type);
  73         exhalbtc_set_chip_type(bt_type);
  74
  75         exhalbtc_set_ant_num(BT_COEX_ANT_TYPE_PG, ant_num);
  76 }
  77
  78 void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
  79 {
  80         exhalbtc_init_hw_config(&gl_bt_coexist);
  81         exhalbtc_init_coex_dm(&gl_bt_coexist);
  82 }
  83
  84 void rtl_btc_ips_notify(struct rtl_priv *rtlpriv, u8 type)
  85 {
  86         exhalbtc_ips_notify(&gl_bt_coexist, type);
  87 }
  88
  89 void rtl_btc_lps_notify(struct rtl_priv *rtlpriv, u8 type)
  90 {
  91         exhalbtc_lps_notify(&gl_bt_coexist, type);
  92 }
  93
  94 void rtl_btc_scan_notify(struct rtl_priv *rtlpriv, u8 scantype)
  95 {
  96         exhalbtc_scan_notify(&gl_bt_coexist, scantype);
  97 }
  98
  99 void rtl_btc_connect_notify(struct rtl_priv *rtlpriv, u8 action)
 100 {
 101         exhalbtc_connect_notify(&gl_bt_coexist, action);
 102 }
 103
 104 void rtl_btc_mediastatus_notify(struct rtl_priv *rtlpriv,
 105                                 enum rt_media_status mstatus)
 106 {
 107         exhalbtc_mediastatus_notify(&gl_bt_coexist, mstatus);
 108 }
 109
 110 void rtl_btc_periodical(struct rtl_priv *rtlpriv)
 111 {
 112         /*rtl_bt_dm_monitor();*/
 113         exhalbtc_periodical(&gl_bt_coexist);
 114 }
 115
 116 void rtl_btc_halt_notify(void)
 117 {
 118         exhalbtc_halt_notify(&gl_bt_coexist);
 119 }
 120
 121 void rtl_btc_btinfo_notify(struct rtl_priv *rtlpriv, u8 *tmp_buf, u8 length)
 122 {
 123         exhalbtc_bt_info_notify(&gl_bt_coexist, tmp_buf, length);
 124 }
 125
 126 bool rtl_btc_is_limited_dig(struct rtl_priv *rtlpriv)
 127 {
 128         return gl_bt_coexist.bt_info.limited_dig;
 129 }
 130
 131 bool rtl_btc_is_disable_edca_turbo(struct rtl_priv *rtlpriv)
 132 {
 133         bool bt_change_edca = false;
 134         u32 cur_edca_val;
 135         u32 edca_bt_hs_uplink = 0x5ea42b, edca_bt_hs_downlink = 0x5ea42b;
 136         u32 edca_hs;
 137         u32 edca_addr = 0x504;
 138
 139         cur_edca_val = rtl_read_dword(rtlpriv, edca_addr);
 140         if (halbtc_is_wifi_uplink(rtlpriv)) {
 141                 if (cur_edca_val != edca_bt_hs_uplink) {
 142                         edca_hs = edca_bt_hs_uplink;
 143                         bt_change_edca = true;
 144                 }
 145         } else {
 146                 if (cur_edca_val != edca_bt_hs_downlink) {
 147                         edca_hs = edca_bt_hs_downlink;
 148                         bt_change_edca = true;
 149                 }
 150         }
 151
 152         if (bt_change_edca)
 153                 rtl_write_dword(rtlpriv, edca_addr, edca_hs);
 154
 155         return true;
 156 }
 157
 158 bool rtl_btc_is_bt_disabled(struct rtl_priv *rtlpriv)
 159 {
 160         /* It seems 'bt_disabled' is never be initialized or set. */
 161         if (gl_bt_coexist.bt_info.bt_disabled)
 162                 return true;
 163         else
 164                 return false;
 165 }
 166
 167 void rtl_btc_special_packet_notify(struct rtl_priv *rtlpriv, u8 pkt_type)
 168 {
 169         return exhalbtc_special_packet_notify(&gl_bt_coexist, pkt_type);
 170 }
 171
 172 struct rtl_btc_ops *rtl_btc_get_ops_pointer(void)
 173 {
 174         return &rtl_btc_operation;
 175 }
 176 EXPORT_SYMBOL(rtl_btc_get_ops_pointer);
 177
 178 u8 rtl_get_hwpg_ant_num(struct rtl_priv *rtlpriv)
 179 {
 180         u8 num;
 181
 182         if (rtlpriv->btcoexist.btc_info.ant_num == ANT_X2)
 183                 num = 2;
 184         else
 185                 num = 1;
 186
 187         return num;
 188 }
 189
 190 enum rt_media_status mgnt_link_status_query(struct ieee80211_hw *hw)
 191 {
 192         struct rtl_priv *rtlpriv = rtl_priv(hw);
 193         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 194         enum rt_media_status    m_status = RT_MEDIA_DISCONNECT;
 195
 196         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 197
 198         if (bibss || rtlpriv->mac80211.link_state >= MAC80211_LINKED)
 199                 m_status = RT_MEDIA_CONNECT;
 200
 201         return m_status;
 202 }
 203
 204 u8 rtl_get_hwpg_bt_exist(struct rtl_priv *rtlpriv)
 205 {
 206         return rtlpriv->btcoexist.btc_info.btcoexist;
 207 }
 208
 209 u8 rtl_get_hwpg_bt_type(struct rtl_priv *rtlpriv)
 210 {
 211         return rtlpriv->btcoexist.btc_info.bt_type;
 212 }
 213
 214 MODULE_AUTHOR("Page He  <page_he@realsil.com.cn>");
 215 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
 216 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
 217 MODULE_LICENSE("GPL");
 218 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
 219
 220 static int __init rtl_btcoexist_module_init(void)
 221 {
 222         return 0;
 223 }
 224
 225 static void __exit rtl_btcoexist_module_exit(void)
 226 {
 227         return;
 228 }
 229
 230 module_init(rtl_btcoexist_module_init);
 231 module_exit(rtl_btcoexist_module_exit);