640 lines
15 KiB
C
640 lines
15 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 DRIVER_NAME "wl1271"
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#define DRIVER_PREFIX DRIVER_NAME ": "
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/*
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* FW versions support BA 11n
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* versions marks x.x.x.50-60.x
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*/
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#define WL12XX_BA_SUPPORT_FW_COST_VER2_START 50
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#define WL12XX_BA_SUPPORT_FW_COST_VER2_END 60
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enum {
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DEBUG_NONE = 0,
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DEBUG_IRQ = BIT(0),
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DEBUG_SPI = BIT(1),
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DEBUG_BOOT = BIT(2),
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DEBUG_MAILBOX = BIT(3),
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DEBUG_TESTMODE = BIT(4),
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DEBUG_EVENT = BIT(5),
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DEBUG_TX = BIT(6),
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DEBUG_RX = BIT(7),
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DEBUG_SCAN = BIT(8),
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DEBUG_CRYPT = BIT(9),
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DEBUG_PSM = BIT(10),
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DEBUG_MAC80211 = BIT(11),
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DEBUG_CMD = BIT(12),
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DEBUG_ACX = BIT(13),
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DEBUG_SDIO = BIT(14),
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DEBUG_FILTERS = BIT(15),
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DEBUG_ADHOC = BIT(16),
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DEBUG_AP = BIT(17),
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DEBUG_MASTER = (DEBUG_ADHOC | DEBUG_AP),
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DEBUG_ALL = ~0,
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};
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extern u32 wl12xx_debug_level;
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#define DEBUG_DUMP_LIMIT 1024
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#define wl1271_error(fmt, arg...) \
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pr_err(DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
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#define wl1271_warning(fmt, arg...) \
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pr_warning(DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
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#define wl1271_notice(fmt, arg...) \
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pr_info(DRIVER_PREFIX fmt "\n", ##arg)
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#define wl1271_info(fmt, arg...) \
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pr_info(DRIVER_PREFIX fmt "\n", ##arg)
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#define wl1271_debug(level, fmt, arg...) \
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do { \
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if (level & wl12xx_debug_level) \
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pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
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} while (0)
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/* TODO: use pr_debug_hex_dump when it will be available */
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#define wl1271_dump(level, prefix, buf, len) \
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do { \
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if (level & wl12xx_debug_level) \
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print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
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DUMP_PREFIX_OFFSET, 16, 1, \
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buf, \
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min_t(size_t, len, DEBUG_DUMP_LIMIT), \
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0); \
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} while (0)
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#define wl1271_dump_ascii(level, prefix, buf, len) \
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do { \
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if (level & wl12xx_debug_level) \
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print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
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DUMP_PREFIX_OFFSET, 16, 1, \
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buf, \
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min_t(size_t, len, DEBUG_DUMP_LIMIT), \
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true); \
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} while (0)
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#define WL1271_DEFAULT_STA_RX_CONFIG (CFG_UNI_FILTER_EN | \
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CFG_BSSID_FILTER_EN | \
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CFG_MC_FILTER_EN)
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#define WL1271_DEFAULT_STA_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
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CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
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CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
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CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
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#define WL1271_DEFAULT_AP_RX_CONFIG 0
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#define WL1271_DEFAULT_AP_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PREQ_EN | \
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CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
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CFG_RX_CTL_EN | CFG_RX_AUTH_EN | \
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CFG_RX_ASSOC_EN)
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#define WL1271_FW_NAME "ti-connectivity/wl1271-fw-2.bin"
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#define WL128X_FW_NAME "ti-connectivity/wl128x-fw.bin"
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#define WL127X_AP_FW_NAME "ti-connectivity/wl1271-fw-ap.bin"
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#define WL128X_AP_FW_NAME "ti-connectivity/wl128x-fw-ap.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_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 WL1271_AP_GLOBAL_HLID 0
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#define WL1271_AP_BROADCAST_HLID 1
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#define WL1271_AP_STA_HLID_START 2
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/*
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* When in AP-mode, we allow (at least) this number of mem-blocks
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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 mem-blocks
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* as it might hurt the throughput of active STAs.
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* The number of blocks (18) is enough for 2 large packets.
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*/
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#define WL1271_PS_STA_MAX_BLOCKS (2 * 9)
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#define WL1271_AP_BSS_INDEX 0
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#define WL1271_AP_DEF_INACTIV_SEC 300
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#define WL1271_AP_DEF_BEACON_EXP 20
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#define ACX_TX_DESCRIPTORS 32
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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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WL1271_STATE_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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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 5
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/* Broadcast and Global links + links to stations */
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#define AP_MAX_LINKS (AP_MAX_STATIONS + 2)
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/* FW status registers common for AP/STA */
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struct wl1271_fw_common_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 tx_released_blks[NUM_TX_QUEUES];
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__le32 fw_localtime;
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} __packed;
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/* FW status registers for AP */
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struct wl1271_fw_ap_status {
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struct wl1271_fw_common_status common;
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/* Next fields valid only in AP FW */
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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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/* Number of freed MBs per HLID */
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u8 tx_lnk_free_blks[AP_MAX_LINKS];
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u8 padding_1[1];
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} __packed;
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/* FW status registers for STA */
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struct wl1271_fw_sta_status {
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struct wl1271_fw_common_status common;
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u8 tx_total;
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u8 reserved1;
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__le16 reserved2;
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/* Total structure size is 68 bytes */
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u32 padding;
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} __packed;
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struct wl1271_fw_full_status {
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union {
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struct wl1271_fw_common_status common;
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struct wl1271_fw_sta_status sta;
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struct wl1271_fw_ap_status ap;
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};
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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[IW_ESSID_MAX_SIZE+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 wl1271 *wl, int addr, void *buf, size_t len,
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bool fixed);
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void (*write)(struct wl1271 *wl, int addr, void *buf, size_t len,
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bool fixed);
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void (*reset)(struct wl1271 *wl);
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void (*init)(struct wl1271 *wl);
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int (*power)(struct wl1271 *wl, bool enable);
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struct device* (*dev)(struct wl1271 *wl);
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void (*enable_irq)(struct wl1271 *wl);
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void (*disable_irq)(struct wl1271 *wl);
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void (*set_block_size) (struct wl1271 *wl, 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_STA_ASSOCIATED,
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WL1271_FLAG_JOINED,
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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_PSM,
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WL1271_FLAG_PSM_REQUESTED,
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WL1271_FLAG_IRQ_RUNNING,
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WL1271_FLAG_IDLE,
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WL1271_FLAG_PSPOLL_FAILURE,
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WL1271_FLAG_STA_STATE_SENT,
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WL1271_FLAG_FW_TX_BUSY,
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WL1271_FLAG_AP_STARTED,
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WL1271_FLAG_IF_INITIALIZED,
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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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};
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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 / available TX blocks in FW */
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u8 allocated_blks;
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u8 prev_freed_blks;
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u8 addr[ETH_ALEN];
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};
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struct wl1271 {
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struct platform_device *plat_dev;
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struct ieee80211_hw *hw;
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bool mac80211_registered;
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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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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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u8 fw_bss_type;
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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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u8 bssid[ETH_ALEN];
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u8 mac_addr[ETH_ALEN];
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u8 bss_type;
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u8 set_bss_type;
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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int channel;
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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[NUM_TX_QUEUES];
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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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/* 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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/* Session counter for the chipset */
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int session_counter;
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/* Frames scheduled for transmission, not handled yet */
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struct sk_buff_head tx_queue[NUM_TX_QUEUES];
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int tx_queue_count;
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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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/* 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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/* Security sequence number counters */
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u8 tx_security_last_seq;
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s64 tx_security_seq;
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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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/* 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 wl1271_scan scan;
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struct delayed_work scan_complete_work;
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bool sched_scanning;
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/* probe-req template for the current AP */
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struct sk_buff *probereq;
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/* Our association ID */
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u16 aid;
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/*
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* currently configured rate set:
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* bits 0-15 - 802.11abg rates
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* bits 16-23 - 802.11n MCS index mask
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* support only 1 stream, thus only 8 bits for the MCS rates (0-7).
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*/
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u32 basic_rate_set;
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u32 basic_rate;
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u32 rate_set;
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/* The current band */
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enum ieee80211_band band;
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/* Beaconing interval (needed for ad-hoc) */
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u32 beacon_int;
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/* Default key (for WEP) */
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u32 default_key;
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unsigned int filters;
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unsigned int rx_config;
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unsigned int rx_filter;
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struct completion *elp_compl;
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struct completion *ps_compl;
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struct delayed_work elp_work;
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struct delayed_work pspoll_work;
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/* counter for ps-poll delivery failures */
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int ps_poll_failures;
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/* retry counter for PSM entries */
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u8 psm_entry_retry;
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/* in dBm */
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int power_level;
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int rssi_thold;
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int last_rssi_event;
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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 wl1271_fw_full_status *fw_status;
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struct wl1271_tx_hw_res_if *tx_res_if;
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struct ieee80211_vif *vif;
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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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/* map for HLIDs of associated stations - when operating in AP mode */
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unsigned long ap_hlid_map[BITS_TO_LONGS(AP_MAX_STATIONS)];
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/* recoreded keys for AP-mode - set here before AP startup */
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struct wl1271_ap_key *recorded_ap_keys[MAX_NUM_KEYS];
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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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/* RX BA constraint value */
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bool ba_support;
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u8 ba_rx_bitmap;
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|
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int tcxo_clock;
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|
|
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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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/*
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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[AP_MAX_LINKS];
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|
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/* the hlid of the link where the last transmitted skb came from */
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int last_tx_hlid;
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|
|
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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 */
|
|
unsigned long ap_ps_map;
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|
|
|
/* Quirks of specific hardware revisions */
|
|
unsigned int quirks;
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|
|
|
/* Platform limitations */
|
|
unsigned int platform_quirks;
|
|
};
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|
|
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struct wl1271_station {
|
|
u8 hlid;
|
|
};
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|
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int wl1271_plt_start(struct wl1271 *wl);
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int wl1271_plt_stop(struct wl1271 *wl);
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|
|
|
#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
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|
|
|
#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
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|
|
|
#define WL1271_DEFAULT_POWER_LEVEL 0
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|
|
|
#define WL1271_TX_QUEUE_LOW_WATERMARK 10
|
|
#define WL1271_TX_QUEUE_HIGH_WATERMARK 25
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|
|
|
#define WL1271_DEFERRED_QUEUE_LIMIT 64
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|
|
|
/* 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 */
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|
|
|
/* Macros to handle wl1271.sta_rate_set */
|
|
#define HW_BG_RATES_MASK 0xffff
|
|
#define HW_HT_RATES_OFFSET 16
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|
|
|
/* Quirks */
|
|
|
|
/* Each RX/TX transaction requires an end-of-transaction transfer */
|
|
#define WL12XX_QUIRK_END_OF_TRANSACTION BIT(0)
|
|
|
|
/*
|
|
* Older firmwares use 2 spare TX blocks
|
|
* (for STA < 6.1.3.50.58 or for AP < 6.2.0.0.47)
|
|
*/
|
|
#define WL12XX_QUIRK_USE_2_SPARE_BLOCKS BIT(1)
|
|
|
|
/* WL128X requires aggregated packets to be aligned to the SDIO block size */
|
|
#define WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT BIT(2)
|
|
|
|
#endif
|