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