1 /*
2  * Copyright (c) 2010-2011 Atheros Communications Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef MCI_H
18 #define MCI_H
19 
20 #include "ar9003_mci.h"
21 
22 #define ATH_MCI_SCHED_BUF_SIZE		(16 * 16) /* 16 entries, 4 dword each */
23 #define ATH_MCI_GPM_MAX_ENTRY		16
24 #define ATH_MCI_GPM_BUF_SIZE		(ATH_MCI_GPM_MAX_ENTRY * 16)
25 #define ATH_MCI_DEF_BT_PERIOD		40
26 #define ATH_MCI_BDR_DUTY_CYCLE		20
27 #define ATH_MCI_MAX_DUTY_CYCLE		90
28 
29 #define ATH_MCI_DEF_AGGR_LIMIT		6 /* in 0.24 ms */
30 #define ATH_MCI_MAX_ACL_PROFILE		7
31 #define ATH_MCI_MAX_SCO_PROFILE		1
32 #define ATH_MCI_MAX_PROFILE		(ATH_MCI_MAX_ACL_PROFILE +\
33 					 ATH_MCI_MAX_SCO_PROFILE)
34 
35 #define ATH_MCI_INQUIRY_PRIO         62
36 #define ATH_MCI_HI_PRIO              60
37 #define ATH_MCI_NUM_BT_CHANNELS      79
38 #define ATH_MCI_CONCUR_TX_SWITCH      5
39 
40 #define MCI_GPM_SET_CHANNEL_BIT(_p_gpm, _bt_chan)			  \
41 	do {								  \
42 		if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {		  \
43 			*(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
44 				(_bt_chan / 8)) |= (1 << (_bt_chan & 7)); \
45 		}							  \
46 	} while (0)
47 
48 #define MCI_GPM_CLR_CHANNEL_BIT(_p_gpm, _bt_chan)			  \
49 	do {								  \
50 		if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {		  \
51 			*(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
52 				(_bt_chan / 8)) &= ~(1 << (_bt_chan & 7));\
53 		}							  \
54 	} while (0)
55 
56 #define INC_PROF(_mci, _info) do {		 \
57 		switch (_info->type) {		 \
58 		case MCI_GPM_COEX_PROFILE_RFCOMM:\
59 			_mci->num_other_acl++;	 \
60 			break;			 \
61 		case MCI_GPM_COEX_PROFILE_A2DP:	 \
62 			_mci->num_a2dp++;	 \
63 			if (!_info->edr)	 \
64 				_mci->num_bdr++; \
65 			break;			 \
66 		case MCI_GPM_COEX_PROFILE_HID:	 \
67 			_mci->num_hid++;	 \
68 			break;			 \
69 		case MCI_GPM_COEX_PROFILE_BNEP:	 \
70 			_mci->num_pan++;	 \
71 			break;			 \
72 		case MCI_GPM_COEX_PROFILE_VOICE: \
73 		case MCI_GPM_COEX_PROFILE_A2DPVO:\
74 			_mci->num_sco++;	 \
75 			break;			 \
76 		default:			 \
77 			break;			 \
78 		}				 \
79 	} while (0)
80 
81 #define DEC_PROF(_mci, _info) do {		 \
82 		switch (_info->type) {		 \
83 		case MCI_GPM_COEX_PROFILE_RFCOMM:\
84 			_mci->num_other_acl--;	 \
85 			break;			 \
86 		case MCI_GPM_COEX_PROFILE_A2DP:	 \
87 			_mci->num_a2dp--;	 \
88 			if (!_info->edr)	 \
89 				_mci->num_bdr--; \
90 			break;			 \
91 		case MCI_GPM_COEX_PROFILE_HID:	 \
92 			_mci->num_hid--;	 \
93 			break;			 \
94 		case MCI_GPM_COEX_PROFILE_BNEP:	 \
95 			_mci->num_pan--;	 \
96 			break;			 \
97 		case MCI_GPM_COEX_PROFILE_VOICE: \
98 		case MCI_GPM_COEX_PROFILE_A2DPVO:\
99 			_mci->num_sco--;	 \
100 			break;			 \
101 		default:			 \
102 			break;			 \
103 		}				 \
104 	} while (0)
105 
106 #define NUM_PROF(_mci)	(_mci->num_other_acl + _mci->num_a2dp + \
107 			 _mci->num_hid + _mci->num_pan + _mci->num_sco)
108 
109 struct ath_mci_profile_info {
110 	u8 type;
111 	u8 conn_handle;
112 	bool start;
113 	bool master;
114 	bool edr;
115 	u8 voice_type;
116 	u16 T;		/* Voice: Tvoice, HID: Tsniff,        in slots */
117 	u8 W;		/* Voice: Wvoice, HID: Sniff timeout, in slots */
118 	u8 A;		/*		  HID: Sniff attempt, in slots */
119 	struct list_head list;
120 };
121 
122 struct ath_mci_profile_status {
123 	bool is_critical;
124 	bool is_link;
125 	u8 conn_handle;
126 };
127 
128 struct ath_mci_profile {
129 	struct list_head info;
130 	DECLARE_BITMAP(status, ATH_MCI_MAX_PROFILE);
131 	u16 aggr_limit;
132 	u8 num_mgmt;
133 	u8 num_sco;
134 	u8 num_a2dp;
135 	u8 num_hid;
136 	u8 num_pan;
137 	u8 num_other_acl;
138 	u8 num_bdr;
139 	u8 voice_priority;
140 };
141 
142 struct ath_mci_buf {
143 	void *bf_addr;		/* virtual addr of desc */
144 	dma_addr_t bf_paddr;    /* physical addr of buffer */
145 	u32 bf_len;		/* len of data */
146 };
147 
148 struct ath_mci_coex {
149 	struct ath_mci_buf sched_buf;
150 	struct ath_mci_buf gpm_buf;
151 };
152 
153 void ath_mci_flush_profile(struct ath_mci_profile *mci);
154 int ath_mci_setup(struct ath_softc *sc);
155 void ath_mci_cleanup(struct ath_softc *sc);
156 void ath_mci_intr(struct ath_softc *sc);
157 void ath9k_mci_update_rssi(struct ath_softc *sc);
158 
159 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
160 void ath_mci_enable(struct ath_softc *sc);
161 void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all);
162 void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
163 			   bool concur_tx);
164 #else
ath_mci_enable(struct ath_softc * sc)165 static inline void ath_mci_enable(struct ath_softc *sc)
166 {
167 }
ath9k_mci_update_wlan_channels(struct ath_softc * sc,bool allow_all)168 static inline void ath9k_mci_update_wlan_channels(struct ath_softc *sc,
169 						  bool allow_all)
170 {
171 }
ath9k_mci_set_txpower(struct ath_softc * sc,bool setchannel,bool concur_tx)172 static inline void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
173 					 bool concur_tx)
174 {
175 }
176 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
177 
178 #endif /* MCI_H*/
179