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 INC_PROF(_mci, _info) do {		 \
36 		switch (_info->type) {		 \
37 		case MCI_GPM_COEX_PROFILE_RFCOMM:\
38 			_mci->num_other_acl++;	 \
39 			break;			 \
40 		case MCI_GPM_COEX_PROFILE_A2DP:	 \
41 			_mci->num_a2dp++;	 \
42 			if (!_info->edr)	 \
43 				_mci->num_bdr++; \
44 			break;			 \
45 		case MCI_GPM_COEX_PROFILE_HID:	 \
46 			_mci->num_hid++;	 \
47 			break;			 \
48 		case MCI_GPM_COEX_PROFILE_BNEP:	 \
49 			_mci->num_pan++;	 \
50 			break;			 \
51 		case MCI_GPM_COEX_PROFILE_VOICE: \
52 			_mci->num_sco++;	 \
53 			break;			 \
54 		default:			 \
55 			break;			 \
56 		}				 \
57 	} while (0)
58 
59 #define DEC_PROF(_mci, _info) do {		 \
60 		switch (_info->type) {		 \
61 		case MCI_GPM_COEX_PROFILE_RFCOMM:\
62 			_mci->num_other_acl--;	 \
63 			break;			 \
64 		case MCI_GPM_COEX_PROFILE_A2DP:	 \
65 			_mci->num_a2dp--;	 \
66 			if (!_info->edr)	 \
67 				_mci->num_bdr--; \
68 			break;			 \
69 		case MCI_GPM_COEX_PROFILE_HID:	 \
70 			_mci->num_hid--;	 \
71 			break;			 \
72 		case MCI_GPM_COEX_PROFILE_BNEP:	 \
73 			_mci->num_pan--;	 \
74 			break;			 \
75 		case MCI_GPM_COEX_PROFILE_VOICE: \
76 			_mci->num_sco--;	 \
77 			break;			 \
78 		default:			 \
79 			break;			 \
80 		}				 \
81 	} while (0)
82 
83 #define NUM_PROF(_mci)	(_mci->num_other_acl + _mci->num_a2dp + \
84 			 _mci->num_hid + _mci->num_pan + _mci->num_sco)
85 
86 struct ath_mci_profile_info {
87 	u8 type;
88 	u8 conn_handle;
89 	bool start;
90 	bool master;
91 	bool edr;
92 	u8 voice_type;
93 	u16 T;		/* Voice: Tvoice, HID: Tsniff,        in slots */
94 	u8 W;		/* Voice: Wvoice, HID: Sniff timeout, in slots */
95 	u8 A;		/*		  HID: Sniff attempt, in slots */
96 	struct list_head list;
97 };
98 
99 struct ath_mci_profile_status {
100 	bool is_critical;
101 	bool is_link;
102 	u8 conn_handle;
103 };
104 
105 struct ath_mci_profile {
106 	struct list_head info;
107 	DECLARE_BITMAP(status, ATH_MCI_MAX_PROFILE);
108 	u16 aggr_limit;
109 	u8 num_mgmt;
110 	u8 num_sco;
111 	u8 num_a2dp;
112 	u8 num_hid;
113 	u8 num_pan;
114 	u8 num_other_acl;
115 	u8 num_bdr;
116 };
117 
118 struct ath_mci_buf {
119 	void *bf_addr;		/* virtual addr of desc */
120 	dma_addr_t bf_paddr;    /* physical addr of buffer */
121 	u32 bf_len;		/* len of data */
122 };
123 
124 struct ath_mci_coex {
125 	struct ath_mci_buf sched_buf;
126 	struct ath_mci_buf gpm_buf;
127 };
128 
129 void ath_mci_flush_profile(struct ath_mci_profile *mci);
130 int ath_mci_setup(struct ath_softc *sc);
131 void ath_mci_cleanup(struct ath_softc *sc);
132 void ath_mci_intr(struct ath_softc *sc);
133 #endif
134