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authorLuciano Coelho <coelho@ti.com>2011-11-20 21:40:41 +0200
committerLuciano Coelho <coelho@ti.com>2012-04-12 08:43:55 +0300
commit90921014608d91a03766d0025fa32662dc7c5062 (patch)
treeadba69dd7be20600cdec0cc856263dc2ca3bfdb1 /drivers/net/wireless/wl12xx/event.c
parentwl12xx: increase scan timeout to 30s (diff)
downloadlinux-dev-90921014608d91a03766d0025fa32662dc7c5062.tar.xz
linux-dev-90921014608d91a03766d0025fa32662dc7c5062.zip
wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectory
Move wl12xx and wl1251 modules into a new drivers/net/wireless/ti directory. Add a TI WLAN Kconfig option and Makefile to support this change. Signed-off-by: Luciano Coelho <coelho@ti.com> Cc: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/event.c')
-rw-r--r--drivers/net/wireless/wl12xx/event.c313
1 files changed, 0 insertions, 313 deletions
diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c
deleted file mode 100644
index 96f06a89c2a9..000000000000
--- a/drivers/net/wireless/wl12xx/event.c
+++ /dev/null
@@ -1,313 +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 "wl12xx.h"
-#include "debug.h"
-#include "reg.h"
-#include "io.h"
-#include "event.h"
-#include "ps.h"
-#include "scan.h"
-#include "wl12xx_80211.h"
-
-static void wl1271_event_rssi_trigger(struct wl1271 *wl,
- struct wl12xx_vif *wlvif,
- struct event_mailbox *mbox)
-{
- struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
- 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 <= wlvif->rssi_thold)
- event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
- else
- event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
-
- if (event != wlvif->last_rssi_event)
- ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
- wlvif->last_rssi_event = event;
-}
-
-static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif)
-{
- struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
-
- if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
- if (!wlvif->sta.ba_rx_bitmap)
- return;
- ieee80211_stop_rx_ba_session(vif, wlvif->sta.ba_rx_bitmap,
- vif->bss_conf.bssid);
- } else {
- u8 hlid;
- struct wl1271_link *lnk;
- for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
- WL12XX_MAX_LINKS) {
- lnk = &wl->links[hlid];
- if (!lnk->ba_bitmap)
- continue;
-
- ieee80211_stop_rx_ba_session(vif,
- lnk->ba_bitmap,
- lnk->addr);
- }
- }
-}
-
-static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl,
- u8 enable)
-{
- struct wl12xx_vif *wlvif;
-
- if (enable) {
- set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
- } else {
- clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
- wl12xx_for_each_wlvif_sta(wl, wlvif) {
- wl1271_recalc_rx_streaming(wl, wlvif);
- }
- }
-
-}
-
-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 = wl->mbox;
- struct ieee80211_vif *vif;
- struct wl12xx_vif *wlvif;
- u32 vector;
- bool beacon_loss = false;
- bool disconnect_sta = false;
- unsigned long sta_bitmap = 0;
-
- 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) {
- wl1271_debug(DEBUG_EVENT, "status: 0x%x",
- mbox->scheduled_scan_status);
-
- wl1271_scan_stm(wl, wl->scan_vif);
- }
-
- if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
- wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_REPORT_EVENT "
- "(status 0x%0x)", mbox->scheduled_scan_status);
-
- wl1271_scan_sched_scan_results(wl);
- }
-
- if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) {
- wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT "
- "(status 0x%0x)", mbox->scheduled_scan_status);
- if (wl->sched_scanning) {
- ieee80211_sched_scan_stopped(wl->hw);
- wl->sched_scanning = false;
- }
- }
-
- if (vector & SOFT_GEMINI_SENSE_EVENT_ID)
- wl12xx_event_soft_gemini_sense(wl,
- mbox->soft_gemini_sense_info);
-
- /*
- * 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) {
- /* TODO: check for multi-role */
- wl1271_info("Beacon loss detected.");
-
- /* indicate to the stack, that beacons have been lost */
- beacon_loss = true;
- }
-
- if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) {
- /* TODO: check actual multi-role support */
- wl1271_debug(DEBUG_EVENT, "RSSI_SNR_TRIGGER_0_EVENT");
- wl12xx_for_each_wlvif_sta(wl, wlvif) {
- wl1271_event_rssi_trigger(wl, wlvif, mbox);
- }
- }
-
- if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) {
- u8 role_id = mbox->role_id;
- wl1271_debug(DEBUG_EVENT, "BA_SESSION_RX_CONSTRAINT_EVENT_ID. "
- "ba_allowed = 0x%x, role_id=%d",
- mbox->rx_ba_allowed, role_id);
-
- wl12xx_for_each_wlvif(wl, wlvif) {
- if (role_id != 0xff && role_id != wlvif->role_id)
- continue;
-
- wlvif->ba_allowed = !!mbox->rx_ba_allowed;
- if (!wlvif->ba_allowed)
- wl1271_stop_ba_event(wl, wlvif);
- }
- }
-
- if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) {
- wl1271_debug(DEBUG_EVENT, "CHANNEL_SWITCH_COMPLETE_EVENT_ID. "
- "status = 0x%x",
- mbox->channel_switch_status);
- /*
- * That event uses for two cases:
- * 1) channel switch complete with status=0
- * 2) channel switch failed status=1
- */
-
- /* TODO: configure only the relevant vif */
- wl12xx_for_each_wlvif_sta(wl, wlvif) {
- bool success;
-
- if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
- &wlvif->flags))
- continue;
-
- success = mbox->channel_switch_status ? false : true;
- vif = wl12xx_wlvif_to_vif(wlvif);
-
- ieee80211_chswitch_done(vif, success);
- }
- }
-
- if ((vector & DUMMY_PACKET_EVENT_ID)) {
- wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
- wl1271_tx_dummy_packet(wl);
- }
-
- /*
- * "TX retries exceeded" has a different meaning according to mode.
- * In AP mode the offending station is disconnected.
- */
- if (vector & MAX_TX_RETRY_EVENT_ID) {
- wl1271_debug(DEBUG_EVENT, "MAX_TX_RETRY_EVENT_ID");
- sta_bitmap |= le16_to_cpu(mbox->sta_tx_retry_exceeded);
- disconnect_sta = true;
- }
-
- if (vector & INACTIVE_STA_EVENT_ID) {
- wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
- sta_bitmap |= le16_to_cpu(mbox->sta_aging_status);
- disconnect_sta = true;
- }
-
- if (disconnect_sta) {
- u32 num_packets = wl->conf.tx.max_tx_retries;
- struct ieee80211_sta *sta;
- const u8 *addr;
- int h;
-
- for_each_set_bit(h, &sta_bitmap, WL12XX_MAX_LINKS) {
- bool found = false;
- /* find the ap vif connected to this sta */
- wl12xx_for_each_wlvif_ap(wl, wlvif) {
- if (!test_bit(h, wlvif->ap.sta_hlid_map))
- continue;
- found = true;
- break;
- }
- if (!found)
- continue;
-
- vif = wl12xx_wlvif_to_vif(wlvif);
- addr = wl->links[h].addr;
-
- rcu_read_lock();
- sta = ieee80211_find_sta(vif, addr);
- if (sta) {
- wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
- ieee80211_report_low_ack(sta, num_packets);
- }
- rcu_read_unlock();
- }
- }
-
- if (beacon_loss)
- wl12xx_for_each_wlvif_sta(wl, wlvif) {
- vif = wl12xx_wlvif_to_vif(wlvif);
- ieee80211_connection_loss(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)
-{
- 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], wl->mbox,
- sizeof(*wl->mbox), false);
-
- /* process the descriptor */
- ret = wl1271_event_process(wl);
- 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;
-}