693 lines
16 KiB
C
693 lines
16 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 __WL12XX_H__
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#define __WL12XX_H__
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#include <linux/mutex.h>
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#include <linux/completion.h>
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <linux/bitops.h>
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#include <net/mac80211.h>
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#include "conf.h"
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#include "ini.h"
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#define WL127X_FW_NAME_MULTI "ti-connectivity/wl127x-fw-4-mr.bin"
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#define WL127X_FW_NAME_SINGLE "ti-connectivity/wl127x-fw-4-sr.bin"
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#define WL128X_FW_NAME_MULTI "ti-connectivity/wl128x-fw-4-mr.bin"
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#define WL128X_FW_NAME_SINGLE "ti-connectivity/wl128x-fw-4-sr.bin"
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#define WL127X_PLT_FW_NAME "ti-connectivity/wl127x-fw-4-plt.bin"
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#define WL128X_PLT_FW_NAME "ti-connectivity/wl128x-fw-4-plt.bin"
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/*
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* wl127x and wl128x are using the same NVS file name. However, the
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* ini parameters between them are different. The driver validates
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* the correct NVS size in wl1271_boot_upload_nvs().
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*/
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#define WL12XX_NVS_NAME "ti-connectivity/wl1271-nvs.bin"
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#define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
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#define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
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#define WL1271_TX_SQN_POST_RECOVERY_PADDING 0xff
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#define WL1271_CIPHER_SUITE_GEM 0x00147201
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#define WL1271_BUSY_WORD_CNT 1
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#define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
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#define WL1271_ELP_HW_STATE_ASLEEP 0
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#define WL1271_ELP_HW_STATE_IRQ 1
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#define WL1271_DEFAULT_BEACON_INT 100
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#define WL1271_DEFAULT_DTIM_PERIOD 1
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#define WL12XX_MAX_ROLES 4
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#define WL12XX_MAX_LINKS 12
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#define WL12XX_INVALID_ROLE_ID 0xff
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#define WL12XX_INVALID_LINK_ID 0xff
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#define WL12XX_MAX_RATE_POLICIES 16
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/* Defined by FW as 0. Will not be freed or allocated. */
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#define WL12XX_SYSTEM_HLID 0
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/*
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* When in AP-mode, we allow (at least) this number of packets
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* to be transmitted to FW for a STA in PS-mode. Only when packets are
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* present in the FW buffers it will wake the sleeping STA. We want to put
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* enough packets for the driver to transmit all of its buffered data before
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* the STA goes to sleep again. But we don't want to take too much memory
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* as it might hurt the throughput of active STAs.
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*/
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#define WL1271_PS_STA_MAX_PACKETS 2
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#define WL1271_AP_BSS_INDEX 0
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#define WL1271_AP_DEF_BEACON_EXP 20
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#define ACX_TX_DESCRIPTORS 16
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#define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
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enum wl1271_state {
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WL1271_STATE_OFF,
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WL1271_STATE_ON,
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};
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enum wl12xx_fw_type {
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WL12XX_FW_TYPE_NONE,
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WL12XX_FW_TYPE_NORMAL,
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WL12XX_FW_TYPE_MULTI,
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WL12XX_FW_TYPE_PLT,
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};
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enum wl1271_partition_type {
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PART_DOWN,
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PART_WORK,
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PART_DRPW,
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PART_TABLE_LEN
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};
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struct wl1271_partition {
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u32 size;
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u32 start;
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};
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struct wl1271_partition_set {
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struct wl1271_partition mem;
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struct wl1271_partition reg;
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struct wl1271_partition mem2;
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struct wl1271_partition mem3;
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};
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struct wl1271;
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enum {
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FW_VER_CHIP,
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FW_VER_IF_TYPE,
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FW_VER_MAJOR,
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FW_VER_SUBTYPE,
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FW_VER_MINOR,
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NUM_FW_VER
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};
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#define FW_VER_CHIP_WL127X 6
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#define FW_VER_CHIP_WL128X 7
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#define FW_VER_IF_TYPE_STA 1
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#define FW_VER_IF_TYPE_AP 2
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#define FW_VER_MINOR_1_SPARE_STA_MIN 58
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#define FW_VER_MINOR_1_SPARE_AP_MIN 47
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#define FW_VER_MINOR_FWLOG_STA_MIN 70
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struct wl1271_chip {
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u32 id;
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char fw_ver_str[ETHTOOL_BUSINFO_LEN];
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unsigned int fw_ver[NUM_FW_VER];
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};
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struct wl1271_stats {
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struct acx_statistics *fw_stats;
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unsigned long fw_stats_update;
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unsigned int retry_count;
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unsigned int excessive_retries;
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};
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#define NUM_TX_QUEUES 4
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#define NUM_RX_PKT_DESC 8
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#define AP_MAX_STATIONS 8
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/* FW status registers */
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struct wl12xx_fw_status {
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__le32 intr;
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u8 fw_rx_counter;
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u8 drv_rx_counter;
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u8 reserved;
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u8 tx_results_counter;
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__le32 rx_pkt_descs[NUM_RX_PKT_DESC];
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__le32 fw_localtime;
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/*
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* A bitmap (where each bit represents a single HLID)
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* to indicate if the station is in PS mode.
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*/
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__le32 link_ps_bitmap;
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/*
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* A bitmap (where each bit represents a single HLID) to indicate
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* if the station is in Fast mode
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*/
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__le32 link_fast_bitmap;
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/* Cumulative counter of total released mem blocks since FW-reset */
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__le32 total_released_blks;
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/* Size (in Memory Blocks) of TX pool */
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__le32 tx_total;
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/* Cumulative counter of released packets per AC */
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u8 tx_released_pkts[NUM_TX_QUEUES];
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/* Cumulative counter of freed packets per HLID */
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u8 tx_lnk_free_pkts[WL12XX_MAX_LINKS];
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/* Cumulative counter of released Voice memory blocks */
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u8 tx_voice_released_blks;
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u8 padding_1[3];
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__le32 log_start_addr;
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} __packed;
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struct wl1271_rx_mem_pool_addr {
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u32 addr;
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u32 addr_extra;
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};
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#define WL1271_MAX_CHANNELS 64
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struct wl1271_scan {
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struct cfg80211_scan_request *req;
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unsigned long scanned_ch[BITS_TO_LONGS(WL1271_MAX_CHANNELS)];
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bool failed;
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u8 state;
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u8 ssid[IEEE80211_MAX_SSID_LEN+1];
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size_t ssid_len;
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};
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struct wl1271_if_operations {
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void (*read)(struct device *child, int addr, void *buf, size_t len,
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bool fixed);
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void (*write)(struct device *child, int addr, void *buf, size_t len,
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bool fixed);
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void (*reset)(struct device *child);
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void (*init)(struct device *child);
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int (*power)(struct device *child, bool enable);
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void (*set_block_size) (struct device *child, unsigned int blksz);
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};
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#define MAX_NUM_KEYS 14
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#define MAX_KEY_SIZE 32
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struct wl1271_ap_key {
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u8 id;
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u8 key_type;
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u8 key_size;
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u8 key[MAX_KEY_SIZE];
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u8 hlid;
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u32 tx_seq_32;
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u16 tx_seq_16;
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};
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enum wl12xx_flags {
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WL1271_FLAG_GPIO_POWER,
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WL1271_FLAG_TX_QUEUE_STOPPED,
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WL1271_FLAG_TX_PENDING,
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WL1271_FLAG_IN_ELP,
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WL1271_FLAG_ELP_REQUESTED,
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WL1271_FLAG_IRQ_RUNNING,
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WL1271_FLAG_FW_TX_BUSY,
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WL1271_FLAG_DUMMY_PACKET_PENDING,
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WL1271_FLAG_SUSPENDED,
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WL1271_FLAG_PENDING_WORK,
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WL1271_FLAG_SOFT_GEMINI,
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WL1271_FLAG_RECOVERY_IN_PROGRESS,
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WL1271_FLAG_VIF_CHANGE_IN_PROGRESS,
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};
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enum wl12xx_vif_flags {
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WLVIF_FLAG_INITIALIZED,
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WLVIF_FLAG_STA_ASSOCIATED,
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WLVIF_FLAG_IBSS_JOINED,
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WLVIF_FLAG_AP_STARTED,
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WLVIF_FLAG_IN_PS,
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WLVIF_FLAG_STA_STATE_SENT,
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WLVIF_FLAG_RX_STREAMING_STARTED,
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WLVIF_FLAG_PSPOLL_FAILURE,
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WLVIF_FLAG_CS_PROGRESS,
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WLVIF_FLAG_AP_PROBE_RESP_SET,
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WLVIF_FLAG_IN_USE,
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};
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struct wl1271_link {
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/* AP-mode - TX queue per AC in link */
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struct sk_buff_head tx_queue[NUM_TX_QUEUES];
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/* accounting for allocated / freed packets in FW */
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u8 allocated_pkts;
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u8 prev_freed_pkts;
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u8 addr[ETH_ALEN];
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/* bitmap of TIDs where RX BA sessions are active for this link */
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u8 ba_bitmap;
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};
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struct wl1271 {
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struct ieee80211_hw *hw;
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bool mac80211_registered;
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struct device *dev;
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void *if_priv;
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struct wl1271_if_operations *if_ops;
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void (*set_power)(bool enable);
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int irq;
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int ref_clock;
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spinlock_t wl_lock;
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enum wl1271_state state;
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enum wl12xx_fw_type fw_type;
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bool plt;
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u8 last_vif_count;
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struct mutex mutex;
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unsigned long flags;
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struct wl1271_partition_set part;
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struct wl1271_chip chip;
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int cmd_box_addr;
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int event_box_addr;
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u8 *fw;
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size_t fw_len;
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void *nvs;
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size_t nvs_len;
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s8 hw_pg_ver;
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/* address read from the fuse ROM */
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u32 fuse_oui_addr;
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u32 fuse_nic_addr;
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/* we have up to 2 MAC addresses */
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struct mac_address addresses[2];
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int channel;
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u8 system_hlid;
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unsigned long links_map[BITS_TO_LONGS(WL12XX_MAX_LINKS)];
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unsigned long roles_map[BITS_TO_LONGS(WL12XX_MAX_ROLES)];
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unsigned long roc_map[BITS_TO_LONGS(WL12XX_MAX_ROLES)];
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unsigned long rate_policies_map[
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BITS_TO_LONGS(WL12XX_MAX_RATE_POLICIES)];
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struct list_head wlvif_list;
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u8 sta_count;
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u8 ap_count;
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struct wl1271_acx_mem_map *target_mem_map;
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/* Accounting for allocated / available TX blocks on HW */
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u32 tx_blocks_freed;
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u32 tx_blocks_available;
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u32 tx_allocated_blocks;
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u32 tx_results_count;
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/* amount of spare TX blocks to use */
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u32 tx_spare_blocks;
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/* Accounting for allocated / available Tx packets in HW */
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u32 tx_pkts_freed[NUM_TX_QUEUES];
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u32 tx_allocated_pkts[NUM_TX_QUEUES];
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/* Transmitted TX packets counter for chipset interface */
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u32 tx_packets_count;
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/* Time-offset between host and chipset clocks */
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s64 time_offset;
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/* Frames scheduled for transmission, not handled yet */
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int tx_queue_count[NUM_TX_QUEUES];
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long stopped_queues_map;
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/* Frames received, not handled yet by mac80211 */
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struct sk_buff_head deferred_rx_queue;
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/* Frames sent, not returned yet to mac80211 */
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struct sk_buff_head deferred_tx_queue;
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struct work_struct tx_work;
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struct workqueue_struct *freezable_wq;
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/* Pending TX frames */
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unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)];
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struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
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int tx_frames_cnt;
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/* FW Rx counter */
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u32 rx_counter;
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/* Rx memory pool address */
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struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;
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/* Intermediate buffer, used for packet aggregation */
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u8 *aggr_buf;
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/* Reusable dummy packet template */
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struct sk_buff *dummy_packet;
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/* Network stack work */
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struct work_struct netstack_work;
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/* FW log buffer */
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u8 *fwlog;
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/* Number of valid bytes in the FW log buffer */
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ssize_t fwlog_size;
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/* Sysfs FW log entry readers wait queue */
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wait_queue_head_t fwlog_waitq;
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/* Hardware recovery work */
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struct work_struct recovery_work;
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/* The mbox event mask */
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u32 event_mask;
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/* Mailbox pointers */
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u32 mbox_ptr[2];
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/* Are we currently scanning */
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struct ieee80211_vif *scan_vif;
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struct wl1271_scan scan;
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struct delayed_work scan_complete_work;
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bool sched_scanning;
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/* The current band */
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enum ieee80211_band band;
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struct completion *elp_compl;
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struct delayed_work elp_work;
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/* in dBm */
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int power_level;
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struct wl1271_stats stats;
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__le32 buffer_32;
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u32 buffer_cmd;
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u32 buffer_busyword[WL1271_BUSY_WORD_CNT];
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struct wl12xx_fw_status *fw_status;
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struct wl1271_tx_hw_res_if *tx_res_if;
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/* Current chipset configuration */
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struct conf_drv_settings conf;
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bool sg_enabled;
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bool enable_11a;
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struct list_head list;
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/* Most recently reported noise in dBm */
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s8 noise;
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/* bands supported by this instance of wl12xx */
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struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
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int tcxo_clock;
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/*
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* wowlan trigger was configured during suspend.
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* (currently, only "ANY" trigger is supported)
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*/
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bool wow_enabled;
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bool irq_wake_enabled;
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/*
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* AP-mode - links indexed by HLID. The global and broadcast links
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* are always active.
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*/
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struct wl1271_link links[WL12XX_MAX_LINKS];
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/* AP-mode - a bitmap of links currently in PS mode according to FW */
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u32 ap_fw_ps_map;
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/* AP-mode - a bitmap of links currently in PS mode in mac80211 */
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unsigned long ap_ps_map;
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/* Quirks of specific hardware revisions */
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unsigned int quirks;
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/* Platform limitations */
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unsigned int platform_quirks;
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/* number of currently active RX BA sessions */
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int ba_rx_session_count;
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/* AP-mode - number of currently connected stations */
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int active_sta_count;
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/* last wlvif we transmitted from */
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struct wl12xx_vif *last_wlvif;
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};
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struct wl1271_station {
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u8 hlid;
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};
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struct wl12xx_vif {
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struct wl1271 *wl;
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struct list_head list;
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unsigned long flags;
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u8 bss_type;
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u8 p2p; /* we are using p2p role */
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u8 role_id;
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/* sta/ibss specific */
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u8 dev_role_id;
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u8 dev_hlid;
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union {
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struct {
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u8 hlid;
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u8 ba_rx_bitmap;
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u8 basic_rate_idx;
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u8 ap_rate_idx;
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u8 p2p_rate_idx;
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bool qos;
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} sta;
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struct {
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u8 global_hlid;
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u8 bcast_hlid;
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/* HLIDs bitmap of associated stations */
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unsigned long sta_hlid_map[BITS_TO_LONGS(
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WL12XX_MAX_LINKS)];
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/* recoreded keys - set here before AP startup */
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struct wl1271_ap_key *recorded_keys[MAX_NUM_KEYS];
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u8 mgmt_rate_idx;
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u8 bcast_rate_idx;
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u8 ucast_rate_idx[CONF_TX_MAX_AC_COUNT];
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} ap;
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};
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/* the hlid of the last transmitted skb */
|
|
int last_tx_hlid;
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|
|
|
unsigned long links_map[BITS_TO_LONGS(WL12XX_MAX_LINKS)];
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|
|
|
u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
|
|
u8 ssid_len;
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|
|
|
/* The current band */
|
|
enum ieee80211_band band;
|
|
int channel;
|
|
|
|
u32 bitrate_masks[IEEE80211_NUM_BANDS];
|
|
u32 basic_rate_set;
|
|
|
|
/*
|
|
* currently configured rate set:
|
|
* bits 0-15 - 802.11abg rates
|
|
* bits 16-23 - 802.11n MCS index mask
|
|
* support only 1 stream, thus only 8 bits for the MCS rates (0-7).
|
|
*/
|
|
u32 basic_rate;
|
|
u32 rate_set;
|
|
|
|
/* probe-req template for the current AP */
|
|
struct sk_buff *probereq;
|
|
|
|
/* Beaconing interval (needed for ad-hoc) */
|
|
u32 beacon_int;
|
|
|
|
/* Default key (for WEP) */
|
|
u32 default_key;
|
|
|
|
/* Our association ID */
|
|
u16 aid;
|
|
|
|
/* Session counter for the chipset */
|
|
int session_counter;
|
|
|
|
/* retry counter for PSM entries */
|
|
u8 psm_entry_retry;
|
|
|
|
/* in dBm */
|
|
int power_level;
|
|
|
|
int rssi_thold;
|
|
int last_rssi_event;
|
|
|
|
/* save the current encryption type for auto-arp config */
|
|
u8 encryption_type;
|
|
__be32 ip_addr;
|
|
|
|
/* RX BA constraint value */
|
|
bool ba_support;
|
|
bool ba_allowed;
|
|
|
|
/* Rx Streaming */
|
|
struct work_struct rx_streaming_enable_work;
|
|
struct work_struct rx_streaming_disable_work;
|
|
struct timer_list rx_streaming_timer;
|
|
|
|
/*
|
|
* This struct must be last!
|
|
* data that has to be saved acrossed reconfigs (e.g. recovery)
|
|
* should be declared in this struct.
|
|
*/
|
|
struct {
|
|
u8 persistent[0];
|
|
/*
|
|
* Security sequence number
|
|
* bits 0-15: lower 16 bits part of sequence number
|
|
* bits 16-47: higher 32 bits part of sequence number
|
|
* bits 48-63: not in use
|
|
*/
|
|
u64 tx_security_seq;
|
|
|
|
/* 8 bits of the last sequence number in use */
|
|
u8 tx_security_last_seq_lsb;
|
|
};
|
|
};
|
|
|
|
static inline struct wl12xx_vif *wl12xx_vif_to_data(struct ieee80211_vif *vif)
|
|
{
|
|
return (struct wl12xx_vif *)vif->drv_priv;
|
|
}
|
|
|
|
static inline
|
|
struct ieee80211_vif *wl12xx_wlvif_to_vif(struct wl12xx_vif *wlvif)
|
|
{
|
|
return container_of((void *)wlvif, struct ieee80211_vif, drv_priv);
|
|
}
|
|
|
|
#define wl12xx_for_each_wlvif(wl, wlvif) \
|
|
list_for_each_entry(wlvif, &wl->wlvif_list, list)
|
|
|
|
#define wl12xx_for_each_wlvif_continue(wl, wlvif) \
|
|
list_for_each_entry_continue(wlvif, &wl->wlvif_list, list)
|
|
|
|
#define wl12xx_for_each_wlvif_bss_type(wl, wlvif, _bss_type) \
|
|
wl12xx_for_each_wlvif(wl, wlvif) \
|
|
if (wlvif->bss_type == _bss_type)
|
|
|
|
#define wl12xx_for_each_wlvif_sta(wl, wlvif) \
|
|
wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_STA_BSS)
|
|
|
|
#define wl12xx_for_each_wlvif_ap(wl, wlvif) \
|
|
wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_AP_BSS)
|
|
|
|
int wl1271_plt_start(struct wl1271 *wl);
|
|
int wl1271_plt_stop(struct wl1271 *wl);
|
|
int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif);
|
|
void wl12xx_queue_recovery_work(struct wl1271 *wl);
|
|
size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen);
|
|
|
|
#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
|
|
|
|
#define SESSION_COUNTER_MAX 6 /* maximum value for the session counter */
|
|
#define SESSION_COUNTER_INVALID 7 /* used with dummy_packet */
|
|
|
|
#define WL1271_DEFAULT_POWER_LEVEL 0
|
|
|
|
#define WL1271_TX_QUEUE_LOW_WATERMARK 32
|
|
#define WL1271_TX_QUEUE_HIGH_WATERMARK 256
|
|
|
|
#define WL1271_DEFERRED_QUEUE_LIMIT 64
|
|
|
|
/* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
|
|
on in case is has been shut down shortly before */
|
|
#define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */
|
|
#define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */
|
|
|
|
/* Macros to handle wl1271.sta_rate_set */
|
|
#define HW_BG_RATES_MASK 0xffff
|
|
#define HW_HT_RATES_OFFSET 16
|
|
|
|
/* Quirks */
|
|
|
|
/* Each RX/TX transaction requires an end-of-transaction transfer */
|
|
#define WL12XX_QUIRK_END_OF_TRANSACTION BIT(0)
|
|
|
|
/* wl127x and SPI don't support SDIO block size alignment */
|
|
#define WL12XX_QUIRK_NO_BLOCKSIZE_ALIGNMENT BIT(2)
|
|
|
|
/* Older firmwares did not implement the FW logger over bus feature */
|
|
#define WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED BIT(4)
|
|
|
|
#define WL12XX_HW_BLOCK_SIZE 256
|
|
|
|
#endif
|