1 /******************************************************************************
2  *
3  * Copyright(c) 2012  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 /*****************************************************************
26  *   The following is for 8192E 2Ant BT Co-exist definition
27  *****************************************************************/
28 #define	BT_INFO_8192E_2ANT_B_FTP			BIT7
29 #define	BT_INFO_8192E_2ANT_B_A2DP			BIT6
30 #define	BT_INFO_8192E_2ANT_B_HID			BIT5
31 #define	BT_INFO_8192E_2ANT_B_SCO_BUSY			BIT4
32 #define	BT_INFO_8192E_2ANT_B_ACL_BUSY			BIT3
33 #define	BT_INFO_8192E_2ANT_B_INQ_PAGE			BIT2
34 #define	BT_INFO_8192E_2ANT_B_SCO_ESCO			BIT1
35 #define	BT_INFO_8192E_2ANT_B_CONNECTION			BIT0
36 
37 #define BTC_RSSI_COEX_THRESH_TOL_8192E_2ANT		2
38 
39 enum bt_info_src_8192e_2ant {
40 	BT_INFO_SRC_8192E_2ANT_WIFI_FW			= 0x0,
41 	BT_INFO_SRC_8192E_2ANT_BT_RSP			= 0x1,
42 	BT_INFO_SRC_8192E_2ANT_BT_ACTIVE_SEND		= 0x2,
43 	BT_INFO_SRC_8192E_2ANT_MAX
44 };
45 
46 enum bt_8192e_2ant_bt_status {
47 	BT_8192E_2ANT_BT_STATUS_NON_CONNECTED_IDLE	= 0x0,
48 	BT_8192E_2ANT_BT_STATUS_CONNECTED_IDLE		= 0x1,
49 	BT_8192E_2ANT_BT_STATUS_INQ_PAGE		= 0x2,
50 	BT_8192E_2ANT_BT_STATUS_ACL_BUSY		= 0x3,
51 	BT_8192E_2ANT_BT_STATUS_SCO_BUSY		= 0x4,
52 	BT_8192E_2ANT_BT_STATUS_ACL_SCO_BUSY		= 0x5,
53 	BT_8192E_2ANT_BT_STATUS_MAX
54 };
55 
56 enum bt_8192e_2ant_coex_algo {
57 	BT_8192E_2ANT_COEX_ALGO_UNDEFINED		= 0x0,
58 	BT_8192E_2ANT_COEX_ALGO_SCO			= 0x1,
59 	BT_8192E_2ANT_COEX_ALGO_SCO_PAN			= 0x2,
60 	BT_8192E_2ANT_COEX_ALGO_HID			= 0x3,
61 	BT_8192E_2ANT_COEX_ALGO_A2DP			= 0x4,
62 	BT_8192E_2ANT_COEX_ALGO_A2DP_PANHS		= 0x5,
63 	BT_8192E_2ANT_COEX_ALGO_PANEDR			= 0x6,
64 	BT_8192E_2ANT_COEX_ALGO_PANHS			= 0x7,
65 	BT_8192E_2ANT_COEX_ALGO_PANEDR_A2DP		= 0x8,
66 	BT_8192E_2ANT_COEX_ALGO_PANEDR_HID		= 0x9,
67 	BT_8192E_2ANT_COEX_ALGO_HID_A2DP_PANEDR		= 0xa,
68 	BT_8192E_2ANT_COEX_ALGO_HID_A2DP		= 0xb,
69 	BT_8192E_2ANT_COEX_ALGO_MAX			= 0xc
70 };
71 
72 struct coex_dm_8192e_2ant {
73 	/* fw mechanism */
74 	u8 pre_dec_bt_pwr;
75 	u8 cur_dec_bt_pwr;
76 	u8 pre_fw_dac_swing_lvl;
77 	u8 cur_fw_dac_swing_lvl;
78 	bool cur_ignore_wlan_act;
79 	bool pre_ignore_wlan_act;
80 	u8 pre_ps_tdma;
81 	u8 cur_ps_tdma;
82 	u8 ps_tdma_para[5];
83 	u8 tdma_adj_type;
84 	bool reset_tdma_adjust;
85 	bool auto_tdma_adjust;
86 	bool pre_ps_tdma_on;
87 	bool cur_ps_tdma_on;
88 	bool pre_bt_auto_report;
89 	bool cur_bt_auto_report;
90 
91 	/* sw mechanism */
92 	bool pre_rf_rx_lpf_shrink;
93 	bool cur_rf_rx_lpf_shrink;
94 	u32 bt_rf0x1e_backup;
95 	bool pre_low_penalty_ra;
96 	bool cur_low_penalty_ra;
97 	bool pre_dac_swing_on;
98 	u32 pre_dac_swing_lvl;
99 	bool cur_dac_swing_on;
100 	u32 cur_dac_swing_lvl;
101 	bool pre_adc_back_off;
102 	bool cur_adc_back_off;
103 	bool pre_agc_table_en;
104 	bool cur_agc_table_en;
105 	u32 pre_val0x6c0;
106 	u32 cur_val0x6c0;
107 	u32 pre_val0x6c4;
108 	u32 cur_val0x6c4;
109 	u32 pre_val0x6c8;
110 	u32 cur_val0x6c8;
111 	u8 pre_val0x6cc;
112 	u8 cur_val0x6cc;
113 	bool limited_dig;
114 
115 	u32 backup_arfr_cnt1;	/* Auto Rate Fallback Retry cnt */
116 	u32 backup_arfr_cnt2;	/* Auto Rate Fallback Retry cnt */
117 	u16 backup_retry_limit;
118 	u8 backup_ampdu_maxtime;
119 
120 	/* algorithm related */
121 	u8 pre_algorithm;
122 	u8 cur_algorithm;
123 	u8 bt_status;
124 	u8 wifi_chnl_info[3];
125 
126 	u8 pre_ss_type;
127 	u8 cur_ss_type;
128 
129 	u32 pre_ra_mask;
130 	u32 cur_ra_mask;
131 	u8 cur_ra_mask_type;
132 	u8 pre_arfr_type;
133 	u8 cur_arfr_type;
134 	u8 pre_retry_limit_type;
135 	u8 cur_retry_limit_type;
136 	u8 pre_ampdu_time_type;
137 	u8 cur_ampdu_time_type;
138 };
139 
140 struct coex_sta_8192e_2ant {
141 	bool bt_link_exist;
142 	bool sco_exist;
143 	bool a2dp_exist;
144 	bool hid_exist;
145 	bool pan_exist;
146 
147 	bool under_lps;
148 	bool under_ips;
149 	u32 high_priority_tx;
150 	u32 high_priority_rx;
151 	u32 low_priority_tx;
152 	u32 low_priority_rx;
153 	u8 bt_rssi;
154 	u8 pre_bt_rssi_state;
155 	u8 pre_wifi_rssi_state[4];
156 	bool c2h_bt_info_req_sent;
157 	u8 bt_info_c2h[BT_INFO_SRC_8192E_2ANT_MAX][10];
158 	u32 bt_info_c2h_cnt[BT_INFO_SRC_8192E_2ANT_MAX];
159 	bool c2h_bt_inquiry_page;
160 	u8 bt_retry_cnt;
161 	u8 bt_info_ext;
162 };
163 
164 /****************************************************************
165  *    The following is interface which will notify coex module.
166  ****************************************************************/
167 void ex_btc8192e2ant_init_hwconfig(struct btc_coexist *btcoexist);
168 void ex_btc8192e2ant_init_coex_dm(struct btc_coexist *btcoexist);
169 void ex_btc8192e2ant_ips_notify(struct btc_coexist *btcoexist, u8 type);
170 void ex_btc8192e2ant_lps_notify(struct btc_coexist *btcoexist, u8 type);
171 void ex_btc8192e2ant_scan_notify(struct btc_coexist *btcoexist, u8 type);
172 void ex_btc8192e2ant_connect_notify(struct btc_coexist *btcoexist, u8 type);
173 void ex_btc8192e2ant_media_status_notify(struct btc_coexist *btcoexist,
174 					 u8 type);
175 void ex_btc8192e2ant_special_packet_notify(struct btc_coexist *btcoexist,
176 					   u8 type);
177 void ex_btc8192e2ant_bt_info_notify(struct btc_coexist *btcoexist,
178 				    u8 *tmpbuf, u8 length);
179 void ex_btc8192e2ant_stack_operation_notify(struct btc_coexist *btcoexist,
180 					    u8 type);
181 void ex_btc8192e2ant_halt_notify(struct btc_coexist *btcoexist);
182 void ex_btc8192e2ant_periodical(struct btc_coexist *btcoexist);
183 void ex_btc8192e2ant_display_coex_info(struct btc_coexist *btcoexist,
184 				       struct seq_file *m);
185