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
109struct 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
122struct ath_mci_profile_status {
123 bool is_critical;
124 bool is_link;
125 u8 conn_handle;
126};
127
128struct 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
142struct 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
148struct ath_mci_coex {
149 struct ath_mci_buf sched_buf;
150 struct ath_mci_buf gpm_buf;
151};
152
153void ath_mci_flush_profile(struct ath_mci_profile *mci);
154int ath_mci_setup(struct ath_softc *sc);
155void ath_mci_cleanup(struct ath_softc *sc);
156void ath_mci_intr(struct ath_softc *sc);
157void ath9k_mci_update_rssi(struct ath_softc *sc);
158
159#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
160void ath_mci_enable(struct ath_softc *sc);
161void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all);
162void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
163 bool concur_tx);
164#else
165static inline void ath_mci_enable(struct ath_softc *sc)
166{
167}
168static inline void ath9k_mci_update_wlan_channels(struct ath_softc *sc,
169 bool allow_all)
170{
171}
172static 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

source code of linux/drivers/net/wireless/ath/ath9k/mci.h