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);
232