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_power_on_setting = rtl_btc_power_on_setting,
  36         .btc_init_hw_config = rtl_btc_init_hw_config,
  37         .btc_ips_notify = rtl_btc_ips_notify,
  38         .btc_lps_notify = rtl_btc_lps_notify,
  39         .btc_scan_notify = rtl_btc_scan_notify,
  40         .btc_connect_notify = rtl_btc_connect_notify,
  41         .btc_mediastatus_notify = rtl_btc_mediastatus_notify,
  42         .btc_periodical = rtl_btc_periodical,
  43         .btc_halt_notify = rtl_btc_halt_notify,
  44         .btc_btinfo_notify = rtl_btc_btinfo_notify,
  45         .btc_btmpinfo_notify = rtl_btc_btmpinfo_notify,
  46         .btc_is_limited_dig = rtl_btc_is_limited_dig,
  47         .btc_is_disable_edca_turbo = rtl_btc_is_disable_edca_turbo,
  48         .btc_is_bt_disabled = rtl_btc_is_bt_disabled,
  49         .btc_special_packet_notify = rtl_btc_special_packet_notify,
  50         .btc_record_pwr_mode = rtl_btc_record_pwr_mode,
  51         .btc_get_lps_val = rtl_btc_get_lps_val,
  52         .btc_get_rpwm_val = rtl_btc_get_rpwm_val,
  53         .btc_is_bt_ctrl_lps = rtl_btc_is_bt_ctrl_lps,
  54         .btc_is_bt_lps_on = rtl_btc_is_bt_lps_on,
  55         .btc_get_ampdu_cfg = rtl_btc_get_ampdu_cfg,
  56 };
  57
  58 void rtl_btc_record_pwr_mode(struct rtl_priv *rtlpriv, u8 *buf, u8 len)
  59 {
  60         u8 safe_len;
  61
  62         safe_len = sizeof(gl_bt_coexist.pwr_mode_val);
  63
  64         if (safe_len > len)
  65                 safe_len = len;
  66
  67         memcpy(gl_bt_coexist.pwr_mode_val, buf, safe_len);
  68 }
  69
  70 u8 rtl_btc_get_lps_val(struct rtl_priv *rtlpriv)
  71 {
  72         return gl_bt_coexist.bt_info.lps_val;
  73 }
  74
  75 u8 rtl_btc_get_rpwm_val(struct rtl_priv *rtlpriv)
  76 {
  77         return gl_bt_coexist.bt_info.rpwm_val;
  78 }
  79
  80 bool rtl_btc_is_bt_ctrl_lps(struct rtl_priv *rtlpriv)
  81 {
  82         return gl_bt_coexist.bt_info.bt_ctrl_lps;
  83 }
  84
  85 bool rtl_btc_is_bt_lps_on(struct rtl_priv *rtlpriv)
  86 {
  87         return gl_bt_coexist.bt_info.bt_lps_on;
  88 }
  89
  90 void rtl_btc_get_ampdu_cfg(struct rtl_priv *rtlpriv, u8 *reject_agg,
  91                            u8 *ctrl_agg_size, u8 *agg_size)
  92 {
  93         if (reject_agg)
  94                 *reject_agg = gl_bt_coexist.bt_info.reject_agg_pkt;
  95         if (ctrl_agg_size)
  96                 *ctrl_agg_size = gl_bt_coexist.bt_info.bt_ctrl_agg_buf_size;
  97         if (agg_size)
  98                 *agg_size = gl_bt_coexist.bt_info.agg_buf_size;
  99 }
 100
 101 void rtl_btc_init_variables(struct rtl_priv *rtlpriv)
 102 {
 103         exhalbtc_initlize_variables();
 104         exhalbtc_bind_bt_coex_withadapter(rtlpriv);
 105 }
 106
 107 void rtl_btc_init_hal_vars(struct rtl_priv *rtlpriv)
 108 {
 109         /* move ant_num, bt_type and single_ant_path to
 110          * exhalbtc_bind_bt_coex_withadapter()
 111          */
 112 }
 113
 114 void rtl_btc_power_on_setting(struct rtl_priv *rtlpriv)
 115 {
 116         exhalbtc_power_on_setting(&gl_bt_coexist);
 117 }
 118
 119 void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
 120 {
 121         u8 bt_exist;
 122
 123         bt_exist = rtl_get_hwpg_bt_exist(rtlpriv);
 124         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 125                 "%s, bt_exist is %d\n", __func__, bt_exist);
 126
 127         exhalbtc_init_hw_config(&gl_bt_coexist, !bt_exist);
 128         exhalbtc_init_coex_dm(&gl_bt_coexist);
 129 }
 130
 131 void rtl_btc_ips_notify(struct rtl_priv *rtlpriv, u8 type)
 132 {
 133         exhalbtc_ips_notify(&gl_bt_coexist, type);
 134 }
 135
 136 void rtl_btc_lps_notify(struct rtl_priv *rtlpriv, u8 type)
 137 {
 138         exhalbtc_lps_notify(&gl_bt_coexist, type);
 139 }
 140
 141 void rtl_btc_scan_notify(struct rtl_priv *rtlpriv, u8 scantype)
 142 {
 143         exhalbtc_scan_notify(&gl_bt_coexist, scantype);
 144 }
 145
 146 void rtl_btc_connect_notify(struct rtl_priv *rtlpriv, u8 action)
 147 {
 148         exhalbtc_connect_notify(&gl_bt_coexist, action);
 149 }
 150
 151 void rtl_btc_mediastatus_notify(struct rtl_priv *rtlpriv,
 152                                 enum rt_media_status mstatus)
 153 {
 154         exhalbtc_mediastatus_notify(&gl_bt_coexist, mstatus);
 155 }
 156
 157 void rtl_btc_periodical(struct rtl_priv *rtlpriv)
 158 {
 159         /*rtl_bt_dm_monitor();*/
 160         exhalbtc_periodical(&gl_bt_coexist);
 161 }
 162
 163 void rtl_btc_halt_notify(void)
 164 {
 165         struct btc_coexist *btcoexist = &gl_bt_coexist;
 166
 167         exhalbtc_halt_notify(btcoexist);
 168 }
 169
 170 void rtl_btc_btinfo_notify(struct rtl_priv *rtlpriv, u8 *tmp_buf, u8 length)
 171 {
 172         exhalbtc_bt_info_notify(&gl_bt_coexist, tmp_buf, length);
 173 }
 174
 175 void rtl_btc_btmpinfo_notify(struct rtl_priv *rtlpriv, u8 *tmp_buf, u8 length)
 176 {
 177         u8 extid, seq, len;
 178         u16 bt_real_fw_ver;
 179         u8 bt_fw_ver;
 180
 181         if ((length < 4) || (!tmp_buf))
 182                 return;
 183
 184         extid = tmp_buf[0];
 185         /* not response from BT FW then exit*/
 186         if (extid != 1) /* C2H_TRIG_BY_BT_FW = 1 */
 187                 return;
 188
 189         len = tmp_buf[1] >> 4;
 190         seq = tmp_buf[2] >> 4;
 191
 192         /* BT Firmware version response */
 193         if (seq == 0x0E) {
 194                 bt_real_fw_ver = tmp_buf[3] | (tmp_buf[4] << 8);
 195                 bt_fw_ver = tmp_buf[5];
 196
 197                 gl_bt_coexist.bt_info.bt_real_fw_ver = bt_real_fw_ver;
 198                 gl_bt_coexist.bt_info.bt_fw_ver = bt_fw_ver;
 199         }
 200 }
 201
 202 bool rtl_btc_is_limited_dig(struct rtl_priv *rtlpriv)
 203 {
 204         return gl_bt_coexist.bt_info.limited_dig;
 205 }
 206
 207 bool rtl_btc_is_disable_edca_turbo(struct rtl_priv *rtlpriv)
 208 {
 209         bool bt_change_edca = false;
 210         u32 cur_edca_val;
 211         u32 edca_bt_hs_uplink = 0x5ea42b, edca_bt_hs_downlink = 0x5ea42b;
 212         u32 edca_hs;
 213         u32 edca_addr = 0x504;
 214
 215         cur_edca_val = rtl_read_dword(rtlpriv, edca_addr);
 216         if (halbtc_is_wifi_uplink(rtlpriv)) {
 217                 if (cur_edca_val != edca_bt_hs_uplink) {
 218                         edca_hs = edca_bt_hs_uplink;
 219                         bt_change_edca = true;
 220                 }
 221         } else {
 222                 if (cur_edca_val != edca_bt_hs_downlink) {
 223                         edca_hs = edca_bt_hs_downlink;
 224                         bt_change_edca = true;
 225                 }
 226         }
 227
 228         if (bt_change_edca)
 229                 rtl_write_dword(rtlpriv, edca_addr, edca_hs);
 230
 231         return true;
 232 }
 233
 234 bool rtl_btc_is_bt_disabled(struct rtl_priv *rtlpriv)
 235 {
 236         /* It seems 'bt_disabled' is never be initialized or set. */
 237         if (gl_bt_coexist.bt_info.bt_disabled)
 238                 return true;
 239         else
 240                 return false;
 241 }
 242
 243 void rtl_btc_special_packet_notify(struct rtl_priv *rtlpriv, u8 pkt_type)
 244 {
 245         return exhalbtc_special_packet_notify(&gl_bt_coexist, pkt_type);
 246 }
 247
 248 struct rtl_btc_ops *rtl_btc_get_ops_pointer(void)
 249 {
 250         return &rtl_btc_operation;
 251 }
 252 EXPORT_SYMBOL(rtl_btc_get_ops_pointer);
 253
 254
 255 enum rt_media_status mgnt_link_status_query(struct ieee80211_hw *hw)
 256 {
 257         struct rtl_priv *rtlpriv = rtl_priv(hw);
 258         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 259         enum rt_media_status    m_status = RT_MEDIA_DISCONNECT;
 260
 261         u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
 262
 263         if (bibss || rtlpriv->mac80211.link_state >= MAC80211_LINKED)
 264                 m_status = RT_MEDIA_CONNECT;
 265
 266         return m_status;
 267 }
 268
 269 u8 rtl_get_hwpg_bt_exist(struct rtl_priv *rtlpriv)
 270 {
 271         return rtlpriv->btcoexist.btc_info.btcoexist;
 272 }
 273
 274 MODULE_AUTHOR("Page He  <page_he@realsil.com.cn>");
 275 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
 276 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
 277 MODULE_LICENSE("GPL");
 278 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
 279
 280 static int __init rtl_btcoexist_module_init(void)
 281 {
 282         return 0;
 283 }
 284
 285 static void __exit rtl_btcoexist_module_exit(void)
 286 {
 287         return;
 288 }
 289
 290 module_init(rtl_btcoexist_module_init);
 291 module_exit(rtl_btcoexist_module_exit);