2 * This file is part of wl1271
4 * Copyright (C) 2008-2009 Nokia Corporation
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
25 #include "wl1271_reg.h"
26 #include "wl1271_spi.h"
27 #include "wl1271_event.h"
28 #include "wl1271_ps.h"
29 #include "wl12xx_80211.h"
31 static int wl1271_event_scan_complete(struct wl1271 *wl,
32 struct event_mailbox *mbox)
34 int size = sizeof(struct wl12xx_probe_req_template);
35 wl1271_debug(DEBUG_EVENT, "status: 0x%x",
36 mbox->scheduled_scan_status);
39 if (wl->scan.state == WL1271_SCAN_BAND_DUAL) {
40 wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
42 /* 2.4 GHz band scanned, scan 5 GHz band, pretend
43 * to the wl1271_cmd_scan function that we are not
44 * scanning as it checks that.
47 wl1271_cmd_scan(wl, wl->scan.ssid, wl->scan.ssid_len,
50 WL1271_SCAN_BAND_5_GHZ,
51 wl->scan.probe_requests);
53 if (wl->scan.state == WL1271_SCAN_BAND_2_4_GHZ)
54 wl1271_cmd_template_set(wl,
55 CMD_TEMPL_CFG_PROBE_REQ_2_4,
58 wl1271_cmd_template_set(wl,
59 CMD_TEMPL_CFG_PROBE_REQ_5,
62 mutex_unlock(&wl->mutex);
63 ieee80211_scan_completed(wl->hw, false);
64 mutex_lock(&wl->mutex);
71 static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
73 wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
74 wl1271_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
75 wl1271_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
78 static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
83 wl1271_event_mbox_dump(mbox);
85 vector = mbox->events_vector & ~(mbox->events_mask);
86 wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
88 if (vector & SCAN_COMPLETE_EVENT_ID) {
89 ret = wl1271_event_scan_complete(wl, mbox);
95 * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
96 * filtering) is enabled. Without PSM, the stack will receive all
97 * beacons and can detect beacon loss by itself.
99 if (vector & BSS_LOSE_EVENT_ID && wl->psm) {
100 wl1271_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
102 /* indicate to the stack, that beacons have been lost */
103 ieee80211_beacon_loss(wl->vif);
109 int wl1271_event_unmask(struct wl1271 *wl)
113 ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
120 void wl1271_event_mbox_config(struct wl1271 *wl)
122 wl->mbox_ptr[0] = wl1271_spi_read32(wl, REG_EVENT_MAILBOX_PTR);
123 wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
125 wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
126 wl->mbox_ptr[0], wl->mbox_ptr[1]);
129 int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
131 struct event_mailbox mbox;
134 wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
139 /* first we read the mbox descriptor */
140 wl1271_spi_read(wl, wl->mbox_ptr[mbox_num], &mbox,
141 sizeof(struct event_mailbox), false);
143 /* process the descriptor */
144 ret = wl1271_event_process(wl, &mbox);
148 /* then we let the firmware know it can go on...*/
149 wl1271_spi_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);