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 && wl->psm) {
72 ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
78 if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID && wl->psm) {
79 wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT");
81 /* indicate to the stack, that beacons have been lost */
82 ieee80211_beacon_loss(wl->vif);
85 if (vector & REGAINED_BSS_EVENT_ID) {
86 if (wl->psm_requested) {
87 ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
93 if (wl->vif && wl->rssi_thold) {
94 if (vector & ROAMING_TRIGGER_LOW_RSSI_EVENT_ID) {
95 wl1251_debug(DEBUG_EVENT,
96 "ROAMING_TRIGGER_LOW_RSSI_EVENT");
97 ieee80211_cqm_rssi_notify(wl->vif,
98 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
102 if (vector & ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID) {
103 wl1251_debug(DEBUG_EVENT,
104 "ROAMING_TRIGGER_REGAINED_RSSI_EVENT");
105 ieee80211_cqm_rssi_notify(wl->vif,
106 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
115 * Poll the mailbox event field until any of the bits in the mask is set or a
116 * timeout occurs (WL1251_EVENT_TIMEOUT in msecs)
118 int wl1251_event_wait(struct wl1251 *wl, u32 mask, int timeout_ms)
120 u32 events_vector, event;
121 unsigned long timeout;
123 timeout = jiffies + msecs_to_jiffies(timeout_ms);
126 if (time_after(jiffies, timeout))
131 /* read from both event fields */
132 wl1251_mem_read(wl, wl->mbox_ptr[0], &events_vector,
133 sizeof(events_vector));
134 event = events_vector & mask;
135 wl1251_mem_read(wl, wl->mbox_ptr[1], &events_vector,
136 sizeof(events_vector));
137 event |= events_vector & mask;
143 int wl1251_event_unmask(struct wl1251 *wl)
147 ret = wl1251_acx_event_mbox_mask(wl, ~(wl->event_mask));
154 void wl1251_event_mbox_config(struct wl1251 *wl)
156 wl->mbox_ptr[0] = wl1251_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
157 wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
159 wl1251_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
160 wl->mbox_ptr[0], wl->mbox_ptr[1]);
163 int wl1251_event_handle(struct wl1251 *wl, u8 mbox_num)
165 struct event_mailbox mbox;
168 wl1251_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
173 /* first we read the mbox descriptor */
174 wl1251_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
175 sizeof(struct event_mailbox));
177 /* process the descriptor */
178 ret = wl1251_event_process(wl, &mbox);
182 /* then we let the firmware know it can go on...*/
183 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);