90494a90be
Some AP's (such as Zyxel Prestige 600) have totally broken ps-poll functionality. When powersave is enabled, these AP's will set the TIM bit for a STA in beacons, but when the STA responds with a ps-poll, the AP does not respond with data. The wl1271 firmware is able to send an indication to the host, when this problem occurs. This patch adds implementation, which temporarily disables power-save in response to this indication, allowing the AP to transmit whatever data it has buffered for the STA / whatever data is inbound at that time. This patch does not make these AP's work reliably in PSM, but improves the chances of inbound data getting through. The side effect of this patch is increased power consumption when using a faulty AP. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __WL1271_EVENT_H__
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#define __WL1271_EVENT_H__
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/*
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* Mbox events
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*
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* The event mechanism is based on a pair of event buffers (buffers A and
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* B) at fixed locations in the target's memory. The host processes one
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* buffer while the other buffer continues to collect events. If the host
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* is not processing events, an interrupt is issued to signal that a buffer
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* is ready. Once the host is done with processing events from one buffer,
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* it signals the target (with an ACK interrupt) that the event buffer is
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* free.
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*/
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enum {
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RSSI_SNR_TRIGGER_0_EVENT_ID = BIT(0),
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RSSI_SNR_TRIGGER_1_EVENT_ID = BIT(1),
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RSSI_SNR_TRIGGER_2_EVENT_ID = BIT(2),
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RSSI_SNR_TRIGGER_3_EVENT_ID = BIT(3),
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RSSI_SNR_TRIGGER_4_EVENT_ID = BIT(4),
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RSSI_SNR_TRIGGER_5_EVENT_ID = BIT(5),
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RSSI_SNR_TRIGGER_6_EVENT_ID = BIT(6),
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RSSI_SNR_TRIGGER_7_EVENT_ID = BIT(7),
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MEASUREMENT_START_EVENT_ID = BIT(8),
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MEASUREMENT_COMPLETE_EVENT_ID = BIT(9),
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SCAN_COMPLETE_EVENT_ID = BIT(10),
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SCHEDULED_SCAN_COMPLETE_EVENT_ID = BIT(11),
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AP_DISCOVERY_COMPLETE_EVENT_ID = BIT(12),
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PS_REPORT_EVENT_ID = BIT(13),
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PSPOLL_DELIVERY_FAILURE_EVENT_ID = BIT(14),
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DISCONNECT_EVENT_COMPLETE_ID = BIT(15),
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JOIN_EVENT_COMPLETE_ID = BIT(16),
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CHANNEL_SWITCH_COMPLETE_EVENT_ID = BIT(17),
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BSS_LOSE_EVENT_ID = BIT(18),
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REGAINED_BSS_EVENT_ID = BIT(19),
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ROAMING_TRIGGER_MAX_TX_RETRY_EVENT_ID = BIT(20),
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SOFT_GEMINI_SENSE_EVENT_ID = BIT(22),
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SOFT_GEMINI_PREDICTION_EVENT_ID = BIT(23),
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SOFT_GEMINI_AVALANCHE_EVENT_ID = BIT(24),
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PLT_RX_CALIBRATION_COMPLETE_EVENT_ID = BIT(25),
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DBG_EVENT_ID = BIT(26),
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HEALTH_CHECK_REPLY_EVENT_ID = BIT(27),
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PERIODIC_SCAN_COMPLETE_EVENT_ID = BIT(28),
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PERIODIC_SCAN_REPORT_EVENT_ID = BIT(29),
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BA_SESSION_TEAR_DOWN_EVENT_ID = BIT(30),
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EVENT_MBOX_ALL_EVENT_ID = 0x7fffffff,
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};
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enum {
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EVENT_ENTER_POWER_SAVE_FAIL = 0,
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EVENT_ENTER_POWER_SAVE_SUCCESS,
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EVENT_EXIT_POWER_SAVE_FAIL,
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EVENT_EXIT_POWER_SAVE_SUCCESS,
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};
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struct event_debug_report {
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u8 debug_event_id;
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u8 num_params;
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__le16 pad;
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__le32 report_1;
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__le32 report_2;
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__le32 report_3;
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} __attribute__ ((packed));
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#define NUM_OF_RSSI_SNR_TRIGGERS 8
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struct event_mailbox {
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__le32 events_vector;
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__le32 events_mask;
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__le32 reserved_1;
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__le32 reserved_2;
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u8 dbg_event_id;
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u8 num_relevant_params;
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__le16 reserved_3;
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__le32 event_report_p1;
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__le32 event_report_p2;
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__le32 event_report_p3;
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u8 number_of_scan_results;
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u8 scan_tag;
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u8 reserved_4[2];
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__le32 compl_scheduled_scan_status;
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__le16 scheduled_scan_attended_channels;
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u8 soft_gemini_sense_info;
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u8 soft_gemini_protective_info;
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s8 rssi_snr_trigger_metric[NUM_OF_RSSI_SNR_TRIGGERS];
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u8 channel_switch_status;
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u8 scheduled_scan_status;
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u8 ps_status;
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u8 reserved_5[29];
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} __attribute__ ((packed));
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int wl1271_event_unmask(struct wl1271 *wl);
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void wl1271_event_mbox_config(struct wl1271 *wl);
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int wl1271_event_handle(struct wl1271 *wl, u8 mbox);
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void wl1271_pspoll_work(struct work_struct *work);
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#endif
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