This source file includes following definitions.
- wl1251_event_scan_complete
- wl1251_event_ps_report
- wl1251_event_mbox_dump
- wl1251_event_process
- wl1251_event_wait
- wl1251_event_unmask
- wl1251_event_mbox_config
- wl1251_event_handle
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9 #include "wl1251.h"
10 #include "reg.h"
11 #include "io.h"
12 #include "event.h"
13 #include "ps.h"
14
15 static int wl1251_event_scan_complete(struct wl1251 *wl,
16 struct event_mailbox *mbox)
17 {
18 int ret = 0;
19
20 wl1251_debug(DEBUG_EVENT, "status: 0x%x, channels: %d",
21 mbox->scheduled_scan_status,
22 mbox->scheduled_scan_channels);
23
24 if (wl->scanning) {
25 struct cfg80211_scan_info info = {
26 .aborted = false,
27 };
28
29 ieee80211_scan_completed(wl->hw, &info);
30 wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan completed");
31 wl->scanning = false;
32 if (wl->hw->conf.flags & IEEE80211_CONF_IDLE)
33 ret = wl1251_ps_set_mode(wl, STATION_IDLE);
34 }
35
36 return ret;
37 }
38
39 #define WL1251_PSM_ENTRY_RETRIES 3
40 static int wl1251_event_ps_report(struct wl1251 *wl,
41 struct event_mailbox *mbox)
42 {
43 int ret = 0;
44
45 wl1251_debug(DEBUG_EVENT, "ps status: %x", mbox->ps_status);
46
47 switch (mbox->ps_status) {
48 case EVENT_ENTER_POWER_SAVE_FAIL:
49 wl1251_debug(DEBUG_PSM, "PSM entry failed");
50
51 if (wl->station_mode != STATION_POWER_SAVE_MODE) {
52
53 wl->psm_entry_retry = 0;
54 break;
55 }
56
57 if (wl->psm_entry_retry < WL1251_PSM_ENTRY_RETRIES) {
58 wl->psm_entry_retry++;
59 ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
60 } else {
61 wl1251_error("Power save entry failed, giving up");
62 wl->psm_entry_retry = 0;
63 }
64 break;
65 case EVENT_ENTER_POWER_SAVE_SUCCESS:
66 case EVENT_EXIT_POWER_SAVE_FAIL:
67 case EVENT_EXIT_POWER_SAVE_SUCCESS:
68 default:
69 wl->psm_entry_retry = 0;
70 break;
71 }
72
73 return 0;
74 }
75
76 static void wl1251_event_mbox_dump(struct event_mailbox *mbox)
77 {
78 wl1251_debug(DEBUG_EVENT, "MBOX DUMP:");
79 wl1251_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
80 wl1251_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
81 }
82
83 static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox)
84 {
85 int ret;
86 u32 vector;
87
88 wl1251_event_mbox_dump(mbox);
89
90 vector = mbox->events_vector & ~(mbox->events_mask);
91 wl1251_debug(DEBUG_EVENT, "vector: 0x%x", vector);
92
93 if (vector & SCAN_COMPLETE_EVENT_ID) {
94 ret = wl1251_event_scan_complete(wl, mbox);
95 if (ret < 0)
96 return ret;
97 }
98
99 if (vector & BSS_LOSE_EVENT_ID) {
100 wl1251_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
101
102 if (wl->psm_requested &&
103 wl->station_mode != STATION_ACTIVE_MODE) {
104 ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
105 if (ret < 0)
106 return ret;
107 }
108 }
109
110 if (vector & PS_REPORT_EVENT_ID) {
111 wl1251_debug(DEBUG_EVENT, "PS_REPORT_EVENT");
112 ret = wl1251_event_ps_report(wl, mbox);
113 if (ret < 0)
114 return ret;
115 }
116
117 if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID) {
118 wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT");
119
120
121 if (wl->vif && wl->vif->type == NL80211_IFTYPE_STATION)
122 ieee80211_beacon_loss(wl->vif);
123 }
124
125 if (vector & REGAINED_BSS_EVENT_ID) {
126 if (wl->psm_requested) {
127 ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
128 if (ret < 0)
129 return ret;
130 }
131 }
132
133 if (wl->vif && wl->rssi_thold) {
134 if (vector & ROAMING_TRIGGER_LOW_RSSI_EVENT_ID) {
135 wl1251_debug(DEBUG_EVENT,
136 "ROAMING_TRIGGER_LOW_RSSI_EVENT");
137 ieee80211_cqm_rssi_notify(wl->vif,
138 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
139 0, GFP_KERNEL);
140 }
141
142 if (vector & ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID) {
143 wl1251_debug(DEBUG_EVENT,
144 "ROAMING_TRIGGER_REGAINED_RSSI_EVENT");
145 ieee80211_cqm_rssi_notify(wl->vif,
146 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
147 0, GFP_KERNEL);
148 }
149 }
150
151 return 0;
152 }
153
154
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157
158 int wl1251_event_wait(struct wl1251 *wl, u32 mask, int timeout_ms)
159 {
160 u32 events_vector, event;
161 unsigned long timeout;
162
163 timeout = jiffies + msecs_to_jiffies(timeout_ms);
164
165 do {
166 if (time_after(jiffies, timeout))
167 return -ETIMEDOUT;
168
169 msleep(1);
170
171
172 wl1251_mem_read(wl, wl->mbox_ptr[0], &events_vector,
173 sizeof(events_vector));
174 event = events_vector & mask;
175 wl1251_mem_read(wl, wl->mbox_ptr[1], &events_vector,
176 sizeof(events_vector));
177 event |= events_vector & mask;
178 } while (!event);
179
180 return 0;
181 }
182
183 int wl1251_event_unmask(struct wl1251 *wl)
184 {
185 int ret;
186
187 ret = wl1251_acx_event_mbox_mask(wl, ~(wl->event_mask));
188 if (ret < 0)
189 return ret;
190
191 return 0;
192 }
193
194 void wl1251_event_mbox_config(struct wl1251 *wl)
195 {
196 wl->mbox_ptr[0] = wl1251_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
197 wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
198
199 wl1251_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
200 wl->mbox_ptr[0], wl->mbox_ptr[1]);
201 }
202
203 int wl1251_event_handle(struct wl1251 *wl, u8 mbox_num)
204 {
205 struct event_mailbox mbox;
206 int ret;
207
208 wl1251_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
209
210 if (mbox_num > 1)
211 return -EINVAL;
212
213
214 wl1251_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
215 sizeof(struct event_mailbox));
216
217
218 ret = wl1251_event_process(wl, &mbox);
219 if (ret < 0)
220 return ret;
221
222
223 wl1251_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);
224
225 return 0;
226 }