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1 /*
2  * This file is part of wl1251
3  *
4  * Copyright (c) 1998-2007 Texas Instruments Incorporated
5  * Copyright (C) 2008 Nokia Corporation
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * version 2 as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19  * 02110-1301 USA
20  *
21  */
22 
23 #ifndef __WL1251_EVENT_H__
24 #define __WL1251_EVENT_H__
25 
26 /*
27  * Mbox events
28  *
29  * The event mechanism is based on a pair of event buffers (buffers A and
30  * B) at fixed locations in the target's memory. The host processes one
31  * buffer while the other buffer continues to collect events. If the host
32  * is not processing events, an interrupt is issued to signal that a buffer
33  * is ready. Once the host is done with processing events from one buffer,
34  * it signals the target (with an ACK interrupt) that the event buffer is
35  * free.
36  */
37 
38 enum {
39 	RESERVED1_EVENT_ID                       = BIT(0),
40 	RESERVED2_EVENT_ID                       = BIT(1),
41 	MEASUREMENT_START_EVENT_ID               = BIT(2),
42 	SCAN_COMPLETE_EVENT_ID                   = BIT(3),
43 	CALIBRATION_COMPLETE_EVENT_ID            = BIT(4),
44 	ROAMING_TRIGGER_LOW_RSSI_EVENT_ID        = BIT(5),
45 	PS_REPORT_EVENT_ID                       = BIT(6),
46 	SYNCHRONIZATION_TIMEOUT_EVENT_ID         = BIT(7),
47 	HEALTH_REPORT_EVENT_ID                   = BIT(8),
48 	ACI_DETECTION_EVENT_ID                   = BIT(9),
49 	DEBUG_REPORT_EVENT_ID                    = BIT(10),
50 	MAC_STATUS_EVENT_ID                      = BIT(11),
51 	DISCONNECT_EVENT_COMPLETE_ID             = BIT(12),
52 	JOIN_EVENT_COMPLETE_ID                   = BIT(13),
53 	CHANNEL_SWITCH_COMPLETE_EVENT_ID         = BIT(14),
54 	BSS_LOSE_EVENT_ID                        = BIT(15),
55 	ROAMING_TRIGGER_MAX_TX_RETRY_EVENT_ID    = BIT(16),
56 	MEASUREMENT_COMPLETE_EVENT_ID            = BIT(17),
57 	AP_DISCOVERY_COMPLETE_EVENT_ID           = BIT(18),
58 	SCHEDULED_SCAN_COMPLETE_EVENT_ID         = BIT(19),
59 	PSPOLL_DELIVERY_FAILURE_EVENT_ID 	 = BIT(20),
60 	RESET_BSS_EVENT_ID                       = BIT(21),
61 	REGAINED_BSS_EVENT_ID                    = BIT(22),
62 	ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID   = BIT(23),
63 	ROAMING_TRIGGER_LOW_SNR_EVENT_ID         = BIT(24),
64 	ROAMING_TRIGGER_REGAINED_SNR_EVENT_ID    = BIT(25),
65 
66 	DBG_EVENT_ID                             = BIT(26),
67 	BT_PTA_SENSE_EVENT_ID                    = BIT(27),
68 	BT_PTA_PREDICTION_EVENT_ID               = BIT(28),
69 	BT_PTA_AVALANCHE_EVENT_ID                = BIT(29),
70 
71 	PLT_RX_CALIBRATION_COMPLETE_EVENT_ID     = BIT(30),
72 
73 	EVENT_MBOX_ALL_EVENT_ID                  = 0x7fffffff,
74 };
75 
76 struct event_debug_report {
77 	u8 debug_event_id;
78 	u8 num_params;
79 	u16 pad;
80 	u32 report_1;
81 	u32 report_2;
82 	u32 report_3;
83 } __packed;
84 
85 struct event_mailbox {
86 	u32 events_vector;
87 	u32 events_mask;
88 	u32 reserved_1;
89 	u32 reserved_2;
90 
91 	char average_rssi_level;
92 	u8 ps_status;
93 	u8 channel_switch_status;
94 	u8 scheduled_scan_status;
95 
96 	/* Channels scanned by the scheduled scan */
97 	u16 scheduled_scan_channels;
98 
99 	/* If bit 0 is set -> target's fatal error */
100 	u16 health_report;
101 	u16 bad_fft_counter;
102 	u8 bt_pta_sense_info;
103 	u8 bt_pta_protective_info;
104 	u32 reserved;
105 	u32 debug_report[2];
106 
107 	/* Number of FCS errors since last event */
108 	u32 fcs_err_counter;
109 
110 	struct event_debug_report report;
111 	u8 average_snr_level;
112 	u8 padding[19];
113 } __packed;
114 
115 enum {
116 	EVENT_ENTER_POWER_SAVE_FAIL = 0,
117 	EVENT_ENTER_POWER_SAVE_SUCCESS,
118 	EVENT_EXIT_POWER_SAVE_FAIL,
119 	EVENT_EXIT_POWER_SAVE_SUCCESS,
120 };
121 
122 int wl1251_event_unmask(struct wl1251 *wl);
123 void wl1251_event_mbox_config(struct wl1251 *wl);
124 int wl1251_event_handle(struct wl1251 *wl, u8 mbox);
125 int wl1251_event_wait(struct wl1251 *wl, u32 mask, int timeout_ms);
126 
127 #endif
128