609 lines
17 KiB
C
609 lines
17 KiB
C
/*
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* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
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*
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* Copyright (c) 2010, ST-Ericsson
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* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
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*
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* Based on:
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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* Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
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* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
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*
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* Based on:
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* - the islsm (softmac prism54) driver, which is:
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* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
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* - stlc45xx driver
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <linux/etherdevice.h>
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#include <linux/vmalloc.h>
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#include <linux/random.h>
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#include <linux/sched.h>
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#include <net/mac80211.h>
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#include "cw1200.h"
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#include "txrx.h"
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#include "hwbus.h"
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#include "fwio.h"
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#include "hwio.h"
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#include "bh.h"
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#include "sta.h"
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#include "scan.h"
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#include "debug.h"
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#include "pm.h"
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MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
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MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("cw1200_core");
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/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
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static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
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module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
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MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
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static char *cw1200_sdd_path;
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module_param(cw1200_sdd_path, charp, 0644);
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MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
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static int cw1200_refclk;
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module_param(cw1200_refclk, int, 0644);
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MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
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int cw1200_power_mode = wsm_power_mode_quiescent;
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module_param(cw1200_power_mode, int, 0644);
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MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
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#define RATETAB_ENT(_rate, _rateid, _flags) \
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{ \
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.bitrate = (_rate), \
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.hw_value = (_rateid), \
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.flags = (_flags), \
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}
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static struct ieee80211_rate cw1200_rates[] = {
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RATETAB_ENT(10, 0, 0),
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RATETAB_ENT(20, 1, 0),
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RATETAB_ENT(55, 2, 0),
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RATETAB_ENT(110, 3, 0),
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RATETAB_ENT(60, 6, 0),
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RATETAB_ENT(90, 7, 0),
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RATETAB_ENT(120, 8, 0),
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RATETAB_ENT(180, 9, 0),
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RATETAB_ENT(240, 10, 0),
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RATETAB_ENT(360, 11, 0),
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RATETAB_ENT(480, 12, 0),
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RATETAB_ENT(540, 13, 0),
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};
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static struct ieee80211_rate cw1200_mcs_rates[] = {
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RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
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RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
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};
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#define cw1200_a_rates (cw1200_rates + 4)
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#define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
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#define cw1200_g_rates (cw1200_rates + 0)
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#define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
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#define cw1200_n_rates (cw1200_mcs_rates)
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#define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
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#define CHAN2G(_channel, _freq, _flags) { \
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.band = NL80211_BAND_2GHZ, \
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.center_freq = (_freq), \
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.hw_value = (_channel), \
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.flags = (_flags), \
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.max_antenna_gain = 0, \
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.max_power = 30, \
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}
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#define CHAN5G(_channel, _flags) { \
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.band = NL80211_BAND_5GHZ, \
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.center_freq = 5000 + (5 * (_channel)), \
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.hw_value = (_channel), \
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.flags = (_flags), \
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.max_antenna_gain = 0, \
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.max_power = 30, \
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}
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static struct ieee80211_channel cw1200_2ghz_chantable[] = {
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CHAN2G(1, 2412, 0),
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CHAN2G(2, 2417, 0),
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CHAN2G(3, 2422, 0),
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CHAN2G(4, 2427, 0),
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CHAN2G(5, 2432, 0),
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CHAN2G(6, 2437, 0),
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CHAN2G(7, 2442, 0),
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CHAN2G(8, 2447, 0),
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CHAN2G(9, 2452, 0),
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CHAN2G(10, 2457, 0),
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CHAN2G(11, 2462, 0),
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CHAN2G(12, 2467, 0),
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CHAN2G(13, 2472, 0),
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CHAN2G(14, 2484, 0),
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};
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static struct ieee80211_channel cw1200_5ghz_chantable[] = {
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CHAN5G(34, 0), CHAN5G(36, 0),
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CHAN5G(38, 0), CHAN5G(40, 0),
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CHAN5G(42, 0), CHAN5G(44, 0),
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CHAN5G(46, 0), CHAN5G(48, 0),
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CHAN5G(52, 0), CHAN5G(56, 0),
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CHAN5G(60, 0), CHAN5G(64, 0),
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CHAN5G(100, 0), CHAN5G(104, 0),
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CHAN5G(108, 0), CHAN5G(112, 0),
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CHAN5G(116, 0), CHAN5G(120, 0),
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CHAN5G(124, 0), CHAN5G(128, 0),
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CHAN5G(132, 0), CHAN5G(136, 0),
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CHAN5G(140, 0), CHAN5G(149, 0),
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CHAN5G(153, 0), CHAN5G(157, 0),
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CHAN5G(161, 0), CHAN5G(165, 0),
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CHAN5G(184, 0), CHAN5G(188, 0),
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CHAN5G(192, 0), CHAN5G(196, 0),
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CHAN5G(200, 0), CHAN5G(204, 0),
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CHAN5G(208, 0), CHAN5G(212, 0),
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CHAN5G(216, 0),
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};
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static struct ieee80211_supported_band cw1200_band_2ghz = {
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.channels = cw1200_2ghz_chantable,
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.n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
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.bitrates = cw1200_g_rates,
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.n_bitrates = cw1200_g_rates_size,
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.ht_cap = {
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.cap = IEEE80211_HT_CAP_GRN_FLD |
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(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
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IEEE80211_HT_CAP_MAX_AMSDU,
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.ht_supported = 1,
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.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
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.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
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.mcs = {
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.rx_mask[0] = 0xFF,
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.rx_highest = __cpu_to_le16(0x41),
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.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
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},
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},
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};
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static struct ieee80211_supported_band cw1200_band_5ghz = {
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.channels = cw1200_5ghz_chantable,
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.n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
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.bitrates = cw1200_a_rates,
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.n_bitrates = cw1200_a_rates_size,
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.ht_cap = {
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.cap = IEEE80211_HT_CAP_GRN_FLD |
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(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
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IEEE80211_HT_CAP_MAX_AMSDU,
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.ht_supported = 1,
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.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
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.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
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.mcs = {
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.rx_mask[0] = 0xFF,
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.rx_highest = __cpu_to_le16(0x41),
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.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
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},
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},
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};
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static const unsigned long cw1200_ttl[] = {
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1 * HZ, /* VO */
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2 * HZ, /* VI */
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5 * HZ, /* BE */
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10 * HZ /* BK */
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};
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static const struct ieee80211_ops cw1200_ops = {
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.start = cw1200_start,
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.stop = cw1200_stop,
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.add_interface = cw1200_add_interface,
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.remove_interface = cw1200_remove_interface,
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.change_interface = cw1200_change_interface,
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.tx = cw1200_tx,
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.hw_scan = cw1200_hw_scan,
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.set_tim = cw1200_set_tim,
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.sta_notify = cw1200_sta_notify,
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.sta_add = cw1200_sta_add,
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.sta_remove = cw1200_sta_remove,
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.set_key = cw1200_set_key,
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.set_rts_threshold = cw1200_set_rts_threshold,
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.config = cw1200_config,
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.bss_info_changed = cw1200_bss_info_changed,
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.prepare_multicast = cw1200_prepare_multicast,
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.configure_filter = cw1200_configure_filter,
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.conf_tx = cw1200_conf_tx,
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.get_stats = cw1200_get_stats,
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.ampdu_action = cw1200_ampdu_action,
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.flush = cw1200_flush,
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#ifdef CONFIG_PM
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.suspend = cw1200_wow_suspend,
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.resume = cw1200_wow_resume,
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#endif
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/* Intentionally not offloaded: */
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/*.channel_switch = cw1200_channel_switch, */
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/*.remain_on_channel = cw1200_remain_on_channel, */
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/*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
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};
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static int cw1200_ba_rx_tids = -1;
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static int cw1200_ba_tx_tids = -1;
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module_param(cw1200_ba_rx_tids, int, 0644);
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module_param(cw1200_ba_tx_tids, int, 0644);
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MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
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MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
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#ifdef CONFIG_PM
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static const struct wiphy_wowlan_support cw1200_wowlan_support = {
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/* Support only for limited wowlan functionalities */
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.flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
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};
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#endif
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static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
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const bool have_5ghz)
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{
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int i, band;
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struct ieee80211_hw *hw;
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struct cw1200_common *priv;
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hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
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if (!hw)
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return NULL;
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priv = hw->priv;
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priv->hw = hw;
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priv->hw_type = -1;
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priv->mode = NL80211_IFTYPE_UNSPECIFIED;
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priv->rates = cw1200_rates; /* TODO: fetch from FW */
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priv->mcs_rates = cw1200_n_rates;
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if (cw1200_ba_rx_tids != -1)
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priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
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else
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priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
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if (cw1200_ba_tx_tids != -1)
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priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
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else
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priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
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ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
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ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
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ieee80211_hw_set(hw, AMPDU_AGGREGATION);
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ieee80211_hw_set(hw, CONNECTION_MONITOR);
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ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
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ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
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ieee80211_hw_set(hw, SIGNAL_DBM);
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ieee80211_hw_set(hw, SUPPORTS_PS);
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hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_ADHOC) |
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BIT(NL80211_IFTYPE_AP) |
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BIT(NL80211_IFTYPE_MESH_POINT) |
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BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_P2P_GO);
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#ifdef CONFIG_PM
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hw->wiphy->wowlan = &cw1200_wowlan_support;
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#endif
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hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
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hw->queues = 4;
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priv->rts_threshold = -1;
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hw->max_rates = 8;
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hw->max_rate_tries = 15;
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hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
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8; /* TKIP IV */
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hw->sta_data_size = sizeof(struct cw1200_sta_priv);
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hw->wiphy->bands[NL80211_BAND_2GHZ] = &cw1200_band_2ghz;
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if (have_5ghz)
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hw->wiphy->bands[NL80211_BAND_5GHZ] = &cw1200_band_5ghz;
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/* Channel params have to be cleared before registering wiphy again */
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for (band = 0; band < NUM_NL80211_BANDS; band++) {
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struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
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if (!sband)
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continue;
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for (i = 0; i < sband->n_channels; i++) {
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sband->channels[i].flags = 0;
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sband->channels[i].max_antenna_gain = 0;
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sband->channels[i].max_power = 30;
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}
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}
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hw->wiphy->max_scan_ssids = 2;
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hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
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if (macaddr)
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SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
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else
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SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
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/* Fix up mac address if necessary */
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if (hw->wiphy->perm_addr[3] == 0 &&
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hw->wiphy->perm_addr[4] == 0 &&
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hw->wiphy->perm_addr[5] == 0) {
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get_random_bytes(&hw->wiphy->perm_addr[3], 3);
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}
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mutex_init(&priv->wsm_cmd_mux);
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mutex_init(&priv->conf_mutex);
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priv->workqueue = create_singlethread_workqueue("cw1200_wq");
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if (!priv->workqueue) {
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ieee80211_free_hw(hw);
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return NULL;
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}
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sema_init(&priv->scan.lock, 1);
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INIT_WORK(&priv->scan.work, cw1200_scan_work);
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INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
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INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
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INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
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cw1200_clear_recent_scan_work);
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INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
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INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
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INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
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INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
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INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
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spin_lock_init(&priv->event_queue_lock);
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INIT_LIST_HEAD(&priv->event_queue);
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INIT_WORK(&priv->event_handler, cw1200_event_handler);
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INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
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INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
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spin_lock_init(&priv->bss_loss_lock);
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spin_lock_init(&priv->ps_state_lock);
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INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
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INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
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INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
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INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
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INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
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INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
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INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
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INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
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INIT_WORK(&priv->set_beacon_wakeup_period_work,
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cw1200_set_beacon_wakeup_period_work);
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setup_timer(&priv->mcast_timeout, cw1200_mcast_timeout,
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(unsigned long)priv);
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if (cw1200_queue_stats_init(&priv->tx_queue_stats,
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CW1200_LINK_ID_MAX,
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cw1200_skb_dtor,
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priv)) {
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destroy_workqueue(priv->workqueue);
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ieee80211_free_hw(hw);
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return NULL;
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}
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for (i = 0; i < 4; ++i) {
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if (cw1200_queue_init(&priv->tx_queue[i],
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&priv->tx_queue_stats, i, 16,
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cw1200_ttl[i])) {
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for (; i > 0; i--)
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cw1200_queue_deinit(&priv->tx_queue[i - 1]);
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cw1200_queue_stats_deinit(&priv->tx_queue_stats);
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destroy_workqueue(priv->workqueue);
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ieee80211_free_hw(hw);
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return NULL;
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}
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}
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init_waitqueue_head(&priv->channel_switch_done);
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init_waitqueue_head(&priv->wsm_cmd_wq);
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init_waitqueue_head(&priv->wsm_startup_done);
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init_waitqueue_head(&priv->ps_mode_switch_done);
|
|
wsm_buf_init(&priv->wsm_cmd_buf);
|
|
spin_lock_init(&priv->wsm_cmd.lock);
|
|
priv->wsm_cmd.done = 1;
|
|
tx_policy_init(priv);
|
|
|
|
return hw;
|
|
}
|
|
|
|
static int cw1200_register_common(struct ieee80211_hw *dev)
|
|
{
|
|
struct cw1200_common *priv = dev->priv;
|
|
int err;
|
|
|
|
#ifdef CONFIG_PM
|
|
err = cw1200_pm_init(&priv->pm_state, priv);
|
|
if (err) {
|
|
pr_err("Cannot init PM. (%d).\n",
|
|
err);
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
err = ieee80211_register_hw(dev);
|
|
if (err) {
|
|
pr_err("Cannot register device (%d).\n",
|
|
err);
|
|
#ifdef CONFIG_PM
|
|
cw1200_pm_deinit(&priv->pm_state);
|
|
#endif
|
|
return err;
|
|
}
|
|
|
|
cw1200_debug_init(priv);
|
|
|
|
pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
|
|
return 0;
|
|
}
|
|
|
|
static void cw1200_free_common(struct ieee80211_hw *dev)
|
|
{
|
|
ieee80211_free_hw(dev);
|
|
}
|
|
|
|
static void cw1200_unregister_common(struct ieee80211_hw *dev)
|
|
{
|
|
struct cw1200_common *priv = dev->priv;
|
|
int i;
|
|
|
|
ieee80211_unregister_hw(dev);
|
|
|
|
del_timer_sync(&priv->mcast_timeout);
|
|
cw1200_unregister_bh(priv);
|
|
|
|
cw1200_debug_release(priv);
|
|
|
|
mutex_destroy(&priv->conf_mutex);
|
|
|
|
wsm_buf_deinit(&priv->wsm_cmd_buf);
|
|
|
|
destroy_workqueue(priv->workqueue);
|
|
priv->workqueue = NULL;
|
|
|
|
if (priv->sdd) {
|
|
release_firmware(priv->sdd);
|
|
priv->sdd = NULL;
|
|
}
|
|
|
|
for (i = 0; i < 4; ++i)
|
|
cw1200_queue_deinit(&priv->tx_queue[i]);
|
|
|
|
cw1200_queue_stats_deinit(&priv->tx_queue_stats);
|
|
#ifdef CONFIG_PM
|
|
cw1200_pm_deinit(&priv->pm_state);
|
|
#endif
|
|
}
|
|
|
|
/* Clock is in KHz */
|
|
u32 cw1200_dpll_from_clk(u16 clk_khz)
|
|
{
|
|
switch (clk_khz) {
|
|
case 0x32C8: /* 13000 KHz */
|
|
return 0x1D89D241;
|
|
case 0x3E80: /* 16000 KHz */
|
|
return 0x000001E1;
|
|
case 0x41A0: /* 16800 KHz */
|
|
return 0x124931C1;
|
|
case 0x4B00: /* 19200 KHz */
|
|
return 0x00000191;
|
|
case 0x5DC0: /* 24000 KHz */
|
|
return 0x00000141;
|
|
case 0x6590: /* 26000 KHz */
|
|
return 0x0EC4F121;
|
|
case 0x8340: /* 33600 KHz */
|
|
return 0x092490E1;
|
|
case 0x9600: /* 38400 KHz */
|
|
return 0x100010C1;
|
|
case 0x9C40: /* 40000 KHz */
|
|
return 0x000000C1;
|
|
case 0xBB80: /* 48000 KHz */
|
|
return 0x000000A1;
|
|
case 0xCB20: /* 52000 KHz */
|
|
return 0x07627091;
|
|
default:
|
|
pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
|
|
clk_khz);
|
|
return 0x0EC4F121;
|
|
}
|
|
}
|
|
|
|
int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
|
|
struct hwbus_priv *hwbus,
|
|
struct device *pdev,
|
|
struct cw1200_common **core,
|
|
int ref_clk, const u8 *macaddr,
|
|
const char *sdd_path, bool have_5ghz)
|
|
{
|
|
int err = -EINVAL;
|
|
struct ieee80211_hw *dev;
|
|
struct cw1200_common *priv;
|
|
struct wsm_operational_mode mode = {
|
|
.power_mode = cw1200_power_mode,
|
|
.disable_more_flag_usage = true,
|
|
};
|
|
|
|
dev = cw1200_init_common(macaddr, have_5ghz);
|
|
if (!dev)
|
|
goto err;
|
|
|
|
priv = dev->priv;
|
|
priv->hw_refclk = ref_clk;
|
|
if (cw1200_refclk)
|
|
priv->hw_refclk = cw1200_refclk;
|
|
|
|
priv->sdd_path = (char *)sdd_path;
|
|
if (cw1200_sdd_path)
|
|
priv->sdd_path = cw1200_sdd_path;
|
|
|
|
priv->hwbus_ops = hwbus_ops;
|
|
priv->hwbus_priv = hwbus;
|
|
priv->pdev = pdev;
|
|
SET_IEEE80211_DEV(priv->hw, pdev);
|
|
|
|
/* Pass struct cw1200_common back up */
|
|
*core = priv;
|
|
|
|
err = cw1200_register_bh(priv);
|
|
if (err)
|
|
goto err1;
|
|
|
|
err = cw1200_load_firmware(priv);
|
|
if (err)
|
|
goto err2;
|
|
|
|
if (wait_event_interruptible_timeout(priv->wsm_startup_done,
|
|
priv->firmware_ready,
|
|
3*HZ) <= 0) {
|
|
/* TODO: Need to find how to reset device
|
|
in QUEUE mode properly.
|
|
*/
|
|
pr_err("Timeout waiting on device startup\n");
|
|
err = -ETIMEDOUT;
|
|
goto err2;
|
|
}
|
|
|
|
/* Set low-power mode. */
|
|
wsm_set_operational_mode(priv, &mode);
|
|
|
|
/* Enable multi-TX confirmation */
|
|
wsm_use_multi_tx_conf(priv, true);
|
|
|
|
err = cw1200_register_common(dev);
|
|
if (err)
|
|
goto err2;
|
|
|
|
return err;
|
|
|
|
err2:
|
|
cw1200_unregister_bh(priv);
|
|
err1:
|
|
cw1200_free_common(dev);
|
|
err:
|
|
*core = NULL;
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cw1200_core_probe);
|
|
|
|
void cw1200_core_release(struct cw1200_common *self)
|
|
{
|
|
/* Disable device interrupts */
|
|
self->hwbus_ops->lock(self->hwbus_priv);
|
|
__cw1200_irq_enable(self, 0);
|
|
self->hwbus_ops->unlock(self->hwbus_priv);
|
|
|
|
/* And then clean up */
|
|
cw1200_unregister_common(self->hw);
|
|
cw1200_free_common(self->hw);
|
|
return;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cw1200_core_release);
|