diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_event.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271_event.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c deleted file mode 100644 index cf37aa6eb13..00000000000 --- a/drivers/net/wireless/wl12xx/wl1271_event.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - * 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_io.h" -#include "wl1271_event.h" -#include "wl1271_ps.h" -#include "wl12xx_80211.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 (test_bit(WL1271_FLAG_SCANNING, &wl->flags)) { - if (wl->scan.state == WL1271_SCAN_BAND_DUAL) { - /* 2.4 GHz band scanned, scan 5 GHz band, pretend - * to the wl1271_cmd_scan function that we are not - * scanning as it checks that. - */ - clear_bit(WL1271_FLAG_SCANNING, &wl->flags); - /* FIXME: ie missing! */ - wl1271_cmd_scan(wl, wl->scan.ssid, wl->scan.ssid_len, - NULL, 0, - wl->scan.active, - wl->scan.high_prio, - WL1271_SCAN_BAND_5_GHZ, - wl->scan.probe_requests); - } else { - mutex_unlock(&wl->mutex); - ieee80211_scan_completed(wl->hw, false); - mutex_lock(&wl->mutex); - clear_bit(WL1271_FLAG_SCANNING, &wl->flags); - } - } - return 0; -} - -static int wl1271_event_ps_report(struct wl1271 *wl, - struct event_mailbox *mbox, - bool *beacon_loss) -{ - int ret = 0; - - wl1271_debug(DEBUG_EVENT, "ps_status: 0x%x", mbox->ps_status); - - switch (mbox->ps_status) { - case EVENT_ENTER_POWER_SAVE_FAIL: - wl1271_debug(DEBUG_PSM, "PSM entry failed"); - - if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) { - /* remain in active mode */ - wl->psm_entry_retry = 0; - break; - } - - if (wl->psm_entry_retry < wl->conf.conn.psm_entry_retries) { - wl->psm_entry_retry++; - ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE, - true); - } else { - wl1271_info("No ack to nullfunc from AP."); - wl->psm_entry_retry = 0; - *beacon_loss = true; - } - break; - case EVENT_ENTER_POWER_SAVE_SUCCESS: - wl->psm_entry_retry = 0; - - /* enable beacon filtering */ - ret = wl1271_acx_beacon_filter_opt(wl, true); - if (ret < 0) - break; - - /* enable beacon early termination */ - ret = wl1271_acx_bet_enable(wl, true); - if (ret < 0) - break; - - /* go to extremely low power mode */ - wl1271_ps_elp_sleep(wl); - if (ret < 0) - break; - break; - case EVENT_EXIT_POWER_SAVE_FAIL: - wl1271_debug(DEBUG_PSM, "PSM exit failed"); - - if (test_bit(WL1271_FLAG_PSM, &wl->flags)) { - wl->psm_entry_retry = 0; - break; - } - - /* make sure the firmware goes to active mode - the frame to - be sent next will indicate to the AP, that we are active. */ - ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE, - false); - break; - case EVENT_EXIT_POWER_SAVE_SUCCESS: - default: - break; - } - - return ret; -} - -static void wl1271_event_rssi_trigger(struct wl1271 *wl, - struct event_mailbox *mbox) -{ - enum nl80211_cqm_rssi_threshold_event event; - s8 metric = mbox->rssi_snr_trigger_metric[0]; - - wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric); - - if (metric <= wl->rssi_thold) - event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; - else - event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; - - if (event != wl->last_rssi_event) - ieee80211_cqm_rssi_notify(wl->vif, event, GFP_KERNEL); - wl->last_rssi_event = event; -} - -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; - bool beacon_loss = false; - - wl1271_event_mbox_dump(mbox); - - vector = le32_to_cpu(mbox->events_vector); - vector &= ~(le32_to_cpu(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; - } - - /* - * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon - * filtering) is enabled. Without PSM, the stack will receive all - * beacons and can detect beacon loss by itself. - * - * As there's possibility that the driver disables PSM before receiving - * BSS_LOSE_EVENT, beacon loss has to be reported to the stack. - * - */ - if (vector & BSS_LOSE_EVENT_ID) { - wl1271_info("Beacon loss detected."); - - /* indicate to the stack, that beacons have been lost */ - beacon_loss = true; - } - - if (vector & PS_REPORT_EVENT_ID) { - wl1271_debug(DEBUG_EVENT, "PS_REPORT_EVENT"); - ret = wl1271_event_ps_report(wl, mbox, &beacon_loss); - if (ret < 0) - return ret; - } - - if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) { - wl1271_debug(DEBUG_EVENT, "RSSI_SNR_TRIGGER_0_EVENT"); - if (wl->vif) - wl1271_event_rssi_trigger(wl, mbox); - } - - if (wl->vif && beacon_loss) - ieee80211_connection_loss(wl->vif); - - 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_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_read(wl, wl->mbox_ptr[mbox_num], &mbox, - sizeof(struct event_mailbox), false); - - /* 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_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK); - - return 0; -} |