1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* This file is part of wl1271
*
* Copyright (C) 2008-2009 Nokia Corporation
*
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include "wl1271.h"
#include "wl1271_reg.h"
#include "wl1271_spi.h"
#include "wl1271_event.h"
#include "wl1271_ps.h"
static int wl1271_event_scan_complete(struct wl1271 *wl,
struct event_mailbox *mbox)
{
wl1271_debug(DEBUG_EVENT, "status: 0x%x",
mbox->scheduled_scan_status);
if (wl->scanning) {
mutex_unlock(&wl->mutex);
ieee80211_scan_completed(wl->hw, false);
mutex_lock(&wl->mutex);
wl->scanning = false;
}
return 0;
}
static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
{
wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
wl1271_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
wl1271_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
}
static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
{
int ret;
u32 vector;
wl1271_event_mbox_dump(mbox);
vector = mbox->events_vector & ~(mbox->events_mask);
wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
ret = wl1271_event_scan_complete(wl, mbox);
if (ret < 0)
return ret;
}
if (vector & BSS_LOSE_EVENT_ID) {
wl1271_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
if (wl->psm_requested && wl->psm) {
ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE);
if (ret < 0)
return ret;
}
}
return 0;
}
int wl1271_event_unmask(struct wl1271 *wl)
{
int ret;
ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
if (ret < 0)
return ret;
return 0;
}
void wl1271_event_mbox_config(struct wl1271 *wl)
{
wl->mbox_ptr[0] = wl1271_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
wl->mbox_ptr[0], wl->mbox_ptr[1]);
}
int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
{
struct event_mailbox mbox;
int ret;
wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
if (mbox_num > 1)
return -EINVAL;
/* first we read the mbox descriptor */
wl1271_spi_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
sizeof(struct event_mailbox));
/* process the descriptor */
ret = wl1271_event_process(wl, &mbox);
if (ret < 0)
return ret;
/* then we let the firmware know it can go on...*/
wl1271_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);
return 0;
}
|
