2 * This file is part of wl1251
4 * Copyright (c) 1998-2007 Texas Instruments Incorporated
5 * Copyright (C) 2008 Nokia Corporation
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.
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.
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
29 static int wl1251_event_scan_complete(struct wl1251
*wl
,
30 struct event_mailbox
*mbox
)
32 wl1251_debug(DEBUG_EVENT
, "status: 0x%x, channels: %d",
33 mbox
->scheduled_scan_status
,
34 mbox
->scheduled_scan_channels
);
37 ieee80211_scan_completed(wl
->hw
, false);
38 wl1251_debug(DEBUG_MAC80211
, "mac80211 hw scan completed");
45 static void wl1251_event_mbox_dump(struct event_mailbox
*mbox
)
47 wl1251_debug(DEBUG_EVENT
, "MBOX DUMP:");
48 wl1251_debug(DEBUG_EVENT
, "\tvector: 0x%x", mbox
->events_vector
);
49 wl1251_debug(DEBUG_EVENT
, "\tmask: 0x%x", mbox
->events_mask
);
52 static int wl1251_event_process(struct wl1251
*wl
, struct event_mailbox
*mbox
)
57 wl1251_event_mbox_dump(mbox
);
59 vector
= mbox
->events_vector
& ~(mbox
->events_mask
);
60 wl1251_debug(DEBUG_EVENT
, "vector: 0x%x", vector
);
62 if (vector
& SCAN_COMPLETE_EVENT_ID
) {
63 ret
= wl1251_event_scan_complete(wl
, mbox
);
68 if (vector
& BSS_LOSE_EVENT_ID
) {
69 wl1251_debug(DEBUG_EVENT
, "BSS_LOSE_EVENT");
71 if (wl
->psm_requested
&&
72 wl
->station_mode
!= STATION_ACTIVE_MODE
) {
73 ret
= wl1251_ps_set_mode(wl
, STATION_ACTIVE_MODE
);
79 if (vector
& SYNCHRONIZATION_TIMEOUT_EVENT_ID
) {
80 wl1251_debug(DEBUG_EVENT
, "SYNCHRONIZATION_TIMEOUT_EVENT");
82 /* indicate to the stack, that beacons have been lost */
83 ieee80211_beacon_loss(wl
->vif
);
86 if (vector
& REGAINED_BSS_EVENT_ID
) {
87 if (wl
->psm_requested
) {
88 ret
= wl1251_ps_set_mode(wl
, STATION_POWER_SAVE_MODE
);
94 if (wl
->vif
&& wl
->rssi_thold
) {
95 if (vector
& ROAMING_TRIGGER_LOW_RSSI_EVENT_ID
) {
96 wl1251_debug(DEBUG_EVENT
,
97 "ROAMING_TRIGGER_LOW_RSSI_EVENT");
98 ieee80211_cqm_rssi_notify(wl
->vif
,
99 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW
,
103 if (vector
& ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID
) {
104 wl1251_debug(DEBUG_EVENT
,
105 "ROAMING_TRIGGER_REGAINED_RSSI_EVENT");
106 ieee80211_cqm_rssi_notify(wl
->vif
,
107 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH
,
116 * Poll the mailbox event field until any of the bits in the mask is set or a
117 * timeout occurs (WL1251_EVENT_TIMEOUT in msecs)
119 int wl1251_event_wait(struct wl1251
*wl
, u32 mask
, int timeout_ms
)
121 u32 events_vector
, event
;
122 unsigned long timeout
;
124 timeout
= jiffies
+ msecs_to_jiffies(timeout_ms
);
127 if (time_after(jiffies
, timeout
))
132 /* read from both event fields */
133 wl1251_mem_read(wl
, wl
->mbox_ptr
[0], &events_vector
,
134 sizeof(events_vector
));
135 event
= events_vector
& mask
;
136 wl1251_mem_read(wl
, wl
->mbox_ptr
[1], &events_vector
,
137 sizeof(events_vector
));
138 event
|= events_vector
& mask
;
144 int wl1251_event_unmask(struct wl1251
*wl
)
148 ret
= wl1251_acx_event_mbox_mask(wl
, ~(wl
->event_mask
));
155 void wl1251_event_mbox_config(struct wl1251
*wl
)
157 wl
->mbox_ptr
[0] = wl1251_reg_read32(wl
, REG_EVENT_MAILBOX_PTR
);
158 wl
->mbox_ptr
[1] = wl
->mbox_ptr
[0] + sizeof(struct event_mailbox
);
160 wl1251_debug(DEBUG_EVENT
, "MBOX ptrs: 0x%x 0x%x",
161 wl
->mbox_ptr
[0], wl
->mbox_ptr
[1]);
164 int wl1251_event_handle(struct wl1251
*wl
, u8 mbox_num
)
166 struct event_mailbox mbox
;
169 wl1251_debug(DEBUG_EVENT
, "EVENT on mbox %d", mbox_num
);
174 /* first we read the mbox descriptor */
175 wl1251_mem_read(wl
, wl
->mbox_ptr
[mbox_num
], &mbox
,
176 sizeof(struct event_mailbox
));
178 /* process the descriptor */
179 ret
= wl1251_event_process(wl
, &mbox
);
183 /* then we let the firmware know it can go on...*/
184 wl1251_reg_write32(wl
, ACX_REG_INTERRUPT_TRIG
, INTR_TRIG_EVENT_ACK
);