drivers/net/wireless/wl12xx/event.h

   1 /*
   2  * This file is part of wl1271
   3  *
   4  * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
   5  * Copyright (C) 2008-2009 Nokia Corporation
   6  *
   7  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __EVENT_H__
  26 #define __EVENT_H__
  27
  28 /*
  29  * Mbox events
  30  *
  31  * The event mechanism is based on a pair of event buffers (buffers A and
  32  * B) at fixed locations in the target's memory. The host processes one
  33  * buffer while the other buffer continues to collect events. If the host
  34  * is not processing events, an interrupt is issued to signal that a buffer
  35  * is ready. Once the host is done with processing events from one buffer,
  36  * it signals the target (with an ACK interrupt) that the event buffer is
  37  * free.
  38  */
  39
  40 enum {
  41         RSSI_SNR_TRIGGER_0_EVENT_ID              = BIT(0),
  42         RSSI_SNR_TRIGGER_1_EVENT_ID              = BIT(1),
  43         RSSI_SNR_TRIGGER_2_EVENT_ID              = BIT(2),
  44         RSSI_SNR_TRIGGER_3_EVENT_ID              = BIT(3),
  45         RSSI_SNR_TRIGGER_4_EVENT_ID              = BIT(4),
  46         RSSI_SNR_TRIGGER_5_EVENT_ID              = BIT(5),
  47         RSSI_SNR_TRIGGER_6_EVENT_ID              = BIT(6),
  48         RSSI_SNR_TRIGGER_7_EVENT_ID              = BIT(7),
  49         MEASUREMENT_START_EVENT_ID               = BIT(8),
  50         MEASUREMENT_COMPLETE_EVENT_ID            = BIT(9),
  51         SCAN_COMPLETE_EVENT_ID                   = BIT(10),
  52         WFD_DISCOVERY_COMPLETE_EVENT_ID          = BIT(11),
  53         AP_DISCOVERY_COMPLETE_EVENT_ID           = BIT(12),
  54         PS_REPORT_EVENT_ID                       = BIT(13),
  55         PSPOLL_DELIVERY_FAILURE_EVENT_ID         = BIT(14),
  56         DISCONNECT_EVENT_COMPLETE_ID             = BIT(15),
  57         /* BIT(16) is reserved */
  58         CHANNEL_SWITCH_COMPLETE_EVENT_ID         = BIT(17),
  59         BSS_LOSE_EVENT_ID                        = BIT(18),
  60         REGAINED_BSS_EVENT_ID                    = BIT(19),
  61         MAX_TX_RETRY_EVENT_ID                    = BIT(20),
  62         DUMMY_PACKET_EVENT_ID                    = BIT(21),
  63         SOFT_GEMINI_SENSE_EVENT_ID               = BIT(22),
  64         CHANGE_AUTO_MODE_TIMEOUT_EVENT_ID        = BIT(23),
  65         SOFT_GEMINI_AVALANCHE_EVENT_ID           = BIT(24),
  66         PLT_RX_CALIBRATION_COMPLETE_EVENT_ID     = BIT(25),
  67         INACTIVE_STA_EVENT_ID                    = BIT(26),
  68         PEER_REMOVE_COMPLETE_EVENT_ID            = BIT(27),
  69         PERIODIC_SCAN_COMPLETE_EVENT_ID          = BIT(28),
  70         PERIODIC_SCAN_REPORT_EVENT_ID            = BIT(29),
  71         BA_SESSION_RX_CONSTRAINT_EVENT_ID        = BIT(30),
  72         REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID      = BIT(31),
  73         EVENT_MBOX_ALL_EVENT_ID                  = 0x7fffffff,
  74 };
  75
  76 enum {
  77         EVENT_ENTER_POWER_SAVE_FAIL = 0,
  78         EVENT_ENTER_POWER_SAVE_SUCCESS,
  79 };
  80
  81 #define NUM_OF_RSSI_SNR_TRIGGERS 8
  82
  83 struct event_mailbox {
  84         __le32 events_vector;
  85         __le32 events_mask;
  86         __le32 reserved_1;
  87         __le32 reserved_2;
  88
  89         u8 number_of_scan_results;
  90         u8 scan_tag;
  91         u8 completed_scan_status;
  92         u8 reserved_3;
  93
  94         u8 soft_gemini_sense_info;
  95         u8 soft_gemini_protective_info;
  96         s8 rssi_snr_trigger_metric[NUM_OF_RSSI_SNR_TRIGGERS];
  97         u8 channel_switch_status;
  98         u8 scheduled_scan_status;
  99         u8 ps_status;
 100         /* tuned channel (roc) */
 101         u8 roc_channel;
 102
 103         __le16 hlid_removed_bitmap;
 104
 105         /* bitmap of aged stations (by HLID) */
 106         __le16 sta_aging_status;
 107
 108         /* bitmap of stations (by HLID) which exceeded max tx retries */
 109         __le16 sta_tx_retry_exceeded;
 110
 111         /* discovery completed results */
 112         u8 discovery_tag;
 113         u8 number_of_preq_results;
 114         u8 number_of_prsp_results;
 115         u8 reserved_5;
 116
 117         /* rx ba constraint */
 118         u8 role_id; /* 0xFF means any role. */
 119         u8 rx_ba_allowed;
 120         u8 reserved_6[2];
 121
 122         u8 ps_poll_delivery_failure_role_ids;
 123         u8 stopped_role_ids;
 124         u8 started_role_ids;
 125         u8 change_auto_mode_timeout;
 126
 127         u8 reserved_7[12];
 128 } __packed;
 129
 130 int wl1271_event_unmask(struct wl1271 *wl);
 131 void wl1271_event_mbox_config(struct wl1271 *wl);
 132 int wl1271_event_handle(struct wl1271 *wl, u8 mbox);
 133 void wl1271_pspoll_work(struct work_struct *work);
 134
 135 /* Functions from main.c */
 136 bool wl1271_is_active_sta(struct wl1271 *wl, u8 hlid);
 137
 138 #endif