2103 lines
57 KiB
C
2103 lines
57 KiB
C
/*
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* Copyright (c) 2014 Redpine Signals Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/etherdevice.h>
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#include "rsi_debugfs.h"
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#include "rsi_mgmt.h"
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#include "rsi_sdio.h"
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#include "rsi_common.h"
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#include "rsi_ps.h"
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static const struct ieee80211_channel rsi_2ghz_channels[] = {
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2412,
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.hw_value = 1 }, /* Channel 1 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2417,
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.hw_value = 2 }, /* Channel 2 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2422,
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.hw_value = 3 }, /* Channel 3 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2427,
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.hw_value = 4 }, /* Channel 4 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2432,
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.hw_value = 5 }, /* Channel 5 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2437,
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.hw_value = 6 }, /* Channel 6 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2442,
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.hw_value = 7 }, /* Channel 7 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2447,
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.hw_value = 8 }, /* Channel 8 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2452,
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.hw_value = 9 }, /* Channel 9 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2457,
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.hw_value = 10 }, /* Channel 10 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2462,
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.hw_value = 11 }, /* Channel 11 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2467,
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.hw_value = 12 }, /* Channel 12 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2472,
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.hw_value = 13 }, /* Channel 13 */
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{ .band = NL80211_BAND_2GHZ, .center_freq = 2484,
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.hw_value = 14 }, /* Channel 14 */
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};
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static const struct ieee80211_channel rsi_5ghz_channels[] = {
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5180,
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.hw_value = 36, }, /* Channel 36 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5200,
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.hw_value = 40, }, /* Channel 40 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5220,
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.hw_value = 44, }, /* Channel 44 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5240,
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.hw_value = 48, }, /* Channel 48 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5260,
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.hw_value = 52, }, /* Channel 52 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5280,
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.hw_value = 56, }, /* Channel 56 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5300,
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.hw_value = 60, }, /* Channel 60 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5320,
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.hw_value = 64, }, /* Channel 64 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5500,
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.hw_value = 100, }, /* Channel 100 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5520,
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.hw_value = 104, }, /* Channel 104 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5540,
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.hw_value = 108, }, /* Channel 108 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5560,
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.hw_value = 112, }, /* Channel 112 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5580,
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.hw_value = 116, }, /* Channel 116 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5600,
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.hw_value = 120, }, /* Channel 120 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5620,
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.hw_value = 124, }, /* Channel 124 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5640,
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.hw_value = 128, }, /* Channel 128 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5660,
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.hw_value = 132, }, /* Channel 132 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5680,
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.hw_value = 136, }, /* Channel 136 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5700,
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.hw_value = 140, }, /* Channel 140 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5745,
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.hw_value = 149, }, /* Channel 149 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5765,
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.hw_value = 153, }, /* Channel 153 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5785,
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.hw_value = 157, }, /* Channel 157 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5805,
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.hw_value = 161, }, /* Channel 161 */
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{ .band = NL80211_BAND_5GHZ, .center_freq = 5825,
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.hw_value = 165, }, /* Channel 165 */
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};
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struct ieee80211_rate rsi_rates[12] = {
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{ .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 },
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{ .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 },
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{ .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 },
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{ .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 },
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{ .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 },
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{ .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 },
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{ .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 },
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{ .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 },
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{ .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 },
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{ .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 },
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{ .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 },
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{ .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 },
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};
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const u16 rsi_mcsrates[8] = {
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RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3,
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RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7
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};
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static const u32 rsi_max_ap_stas[16] = {
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32, /* 1 - Wi-Fi alone */
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0, /* 2 */
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0, /* 3 */
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0, /* 4 - BT EDR alone */
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4, /* 5 - STA + BT EDR */
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32, /* 6 - AP + BT EDR */
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0, /* 7 */
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0, /* 8 - BT LE alone */
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4, /* 9 - STA + BE LE */
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0, /* 10 */
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0, /* 11 */
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0, /* 12 */
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1, /* 13 - STA + BT Dual */
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4, /* 14 - AP + BT Dual */
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};
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static const struct ieee80211_iface_limit rsi_iface_limits[] = {
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_STATION),
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_AP) |
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BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_P2P_GO),
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},
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{
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.max = 1,
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.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
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},
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};
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static const struct ieee80211_iface_combination rsi_iface_combinations[] = {
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{
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.num_different_channels = 1,
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.max_interfaces = 3,
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.limits = rsi_iface_limits,
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.n_limits = ARRAY_SIZE(rsi_iface_limits),
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},
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};
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/**
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* rsi_is_cipher_wep() - This function determines if the cipher is WEP or not.
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* @common: Pointer to the driver private structure.
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*
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* Return: If cipher type is WEP, a value of 1 is returned, else 0.
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*/
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bool rsi_is_cipher_wep(struct rsi_common *common)
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{
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if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) ||
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(common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) &&
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(!common->secinfo.ptk_cipher))
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return true;
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else
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return false;
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}
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/**
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* rsi_register_rates_channels() - This function registers channels and rates.
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* @adapter: Pointer to the adapter structure.
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* @band: Operating band to be set.
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*
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* Return: int - 0 on success, negative error on failure.
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*/
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static int rsi_register_rates_channels(struct rsi_hw *adapter, int band)
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{
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struct ieee80211_supported_band *sbands = &adapter->sbands[band];
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void *channels = NULL;
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if (band == NL80211_BAND_2GHZ) {
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channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels),
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GFP_KERNEL);
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if (!channels)
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return -ENOMEM;
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sbands->band = NL80211_BAND_2GHZ;
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sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels);
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sbands->bitrates = rsi_rates;
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sbands->n_bitrates = ARRAY_SIZE(rsi_rates);
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} else {
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channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels),
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GFP_KERNEL);
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if (!channels)
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return -ENOMEM;
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sbands->band = NL80211_BAND_5GHZ;
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sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels);
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sbands->bitrates = &rsi_rates[4];
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sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4;
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}
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sbands->channels = channels;
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memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap));
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sbands->ht_cap.ht_supported = true;
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sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
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IEEE80211_HT_CAP_SGI_20 |
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IEEE80211_HT_CAP_SGI_40);
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sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
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sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
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sbands->ht_cap.mcs.rx_mask[0] = 0xff;
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sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
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/* sbands->ht_cap.mcs.rx_highest = 0x82; */
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return 0;
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}
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static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_scan_request *hw_req)
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{
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struct cfg80211_scan_request *scan_req = &hw_req->req;
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struct rsi_hw *adapter = hw->priv;
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struct rsi_common *common = adapter->priv;
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rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n");
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common->mac_ops_resumed = false;
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if (common->fsm_state != FSM_MAC_INIT_DONE)
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return -ENODEV;
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if ((common->wow_flags & RSI_WOW_ENABLED) ||
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scan_req->n_channels == 0)
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return -EINVAL;
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/* Scan already in progress. So return */
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if (common->bgscan_en)
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return -EBUSY;
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/* If STA is not connected, return with special value 1, in order
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* to start sw_scan in mac80211
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*/
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if (!vif->cfg.assoc)
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return 1;
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mutex_lock(&common->mutex);
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common->hwscan = scan_req;
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if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) {
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if (!rsi_send_bgscan_probe_req(common, vif)) {
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rsi_dbg(INFO_ZONE, "Background scan started...\n");
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common->bgscan_en = true;
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}
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}
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mutex_unlock(&common->mutex);
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return 0;
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}
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static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif)
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{
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struct rsi_hw *adapter = hw->priv;
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struct rsi_common *common = adapter->priv;
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struct cfg80211_scan_info info;
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rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n");
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mutex_lock(&common->mutex);
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if (common->bgscan_en) {
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if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN))
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common->bgscan_en = false;
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info.aborted = false;
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ieee80211_scan_completed(adapter->hw, &info);
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rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n");
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}
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common->hwscan = NULL;
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mutex_unlock(&common->mutex);
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}
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/**
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* rsi_mac80211_detach() - This function is used to de-initialize the
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* Mac80211 stack.
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* @adapter: Pointer to the adapter structure.
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*
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* Return: None.
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*/
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void rsi_mac80211_detach(struct rsi_hw *adapter)
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{
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struct ieee80211_hw *hw = adapter->hw;
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enum nl80211_band band;
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if (hw) {
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ieee80211_stop_queues(hw);
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ieee80211_unregister_hw(hw);
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ieee80211_free_hw(hw);
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adapter->hw = NULL;
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}
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for (band = 0; band < NUM_NL80211_BANDS; band++) {
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struct ieee80211_supported_band *sband =
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&adapter->sbands[band];
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kfree(sband->channels);
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}
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#ifdef CONFIG_RSI_DEBUGFS
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rsi_remove_dbgfs(adapter);
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kfree(adapter->dfsentry);
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#endif
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}
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EXPORT_SYMBOL_GPL(rsi_mac80211_detach);
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/**
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* rsi_indicate_tx_status() - This function indicates the transmit status.
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* @adapter: Pointer to the adapter structure.
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* @skb: Pointer to the socket buffer structure.
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* @status: Status
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*
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* Return: None.
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*/
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void rsi_indicate_tx_status(struct rsi_hw *adapter,
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struct sk_buff *skb,
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int status)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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struct skb_info *tx_params;
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if (!adapter->hw) {
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rsi_dbg(ERR_ZONE, "##### No MAC #####\n");
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return;
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}
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if (!status)
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info->flags |= IEEE80211_TX_STAT_ACK;
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tx_params = (struct skb_info *)info->driver_data;
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skb_pull(skb, tx_params->internal_hdr_size);
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memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
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ieee80211_tx_status_irqsafe(adapter->hw, skb);
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}
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/**
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* rsi_mac80211_tx() - This is the handler that 802.11 module calls for each
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* transmitted frame.SKB contains the buffer starting
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* from the IEEE 802.11 header.
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* @hw: Pointer to the ieee80211_hw structure.
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* @control: Pointer to the ieee80211_tx_control structure
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* @skb: Pointer to the socket buffer structure.
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*
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* Return: None
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*/
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static void rsi_mac80211_tx(struct ieee80211_hw *hw,
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struct ieee80211_tx_control *control,
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struct sk_buff *skb)
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{
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struct rsi_hw *adapter = hw->priv;
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struct rsi_common *common = adapter->priv;
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struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data;
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if (ieee80211_is_auth(wlh->frame_control))
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common->mac_ops_resumed = false;
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rsi_core_xmit(common, skb);
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}
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/**
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* rsi_mac80211_start() - This is first handler that 802.11 module calls, since
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* the driver init is complete by then, just
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* returns success.
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* @hw: Pointer to the ieee80211_hw structure.
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*
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* Return: 0 as success.
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*/
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static int rsi_mac80211_start(struct ieee80211_hw *hw)
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{
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struct rsi_hw *adapter = hw->priv;
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struct rsi_common *common = adapter->priv;
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rsi_dbg(ERR_ZONE, "===> Interface UP <===\n");
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mutex_lock(&common->mutex);
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if (common->hibernate_resume) {
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common->reinit_hw = true;
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adapter->host_intf_ops->reinit_device(adapter);
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wait_for_completion(&adapter->priv->wlan_init_completion);
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}
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common->iface_down = false;
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wiphy_rfkill_start_polling(hw->wiphy);
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rsi_send_rx_filter_frame(common, 0);
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mutex_unlock(&common->mutex);
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return 0;
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}
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/**
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* rsi_mac80211_stop() - This is the last handler that 802.11 module calls.
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* @hw: Pointer to the ieee80211_hw structure.
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*
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* Return: None.
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*/
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static void rsi_mac80211_stop(struct ieee80211_hw *hw)
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{
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struct rsi_hw *adapter = hw->priv;
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struct rsi_common *common = adapter->priv;
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rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n");
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mutex_lock(&common->mutex);
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common->iface_down = true;
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wiphy_rfkill_stop_polling(hw->wiphy);
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/* Block all rx frames */
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rsi_send_rx_filter_frame(common, 0xffff);
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mutex_unlock(&common->mutex);
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}
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static int rsi_map_intf_mode(enum nl80211_iftype vif_type)
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{
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switch (vif_type) {
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case NL80211_IFTYPE_STATION:
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return RSI_OPMODE_STA;
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case NL80211_IFTYPE_AP:
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return RSI_OPMODE_AP;
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case NL80211_IFTYPE_P2P_DEVICE:
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return RSI_OPMODE_P2P_CLIENT;
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case NL80211_IFTYPE_P2P_CLIENT:
|
|
return RSI_OPMODE_P2P_CLIENT;
|
|
case NL80211_IFTYPE_P2P_GO:
|
|
return RSI_OPMODE_P2P_GO;
|
|
default:
|
|
return RSI_OPMODE_UNSUPPORTED;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_add_interface() - This function is called when a netdevice
|
|
* attached to the hardware is enabled.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
*
|
|
* Return: ret: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv;
|
|
enum opmode intf_mode;
|
|
enum vap_status vap_status;
|
|
int vap_idx = -1, i;
|
|
|
|
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
|
|
mutex_lock(&common->mutex);
|
|
|
|
intf_mode = rsi_map_intf_mode(vif->type);
|
|
if (intf_mode == RSI_OPMODE_UNSUPPORTED) {
|
|
rsi_dbg(ERR_ZONE,
|
|
"%s: Interface type %d not supported\n", __func__,
|
|
vif->type);
|
|
mutex_unlock(&common->mutex);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO))
|
|
common->p2p_enabled = true;
|
|
|
|
/* Get free vap index */
|
|
for (i = 0; i < RSI_MAX_VIFS; i++) {
|
|
if (!adapter->vifs[i] ||
|
|
!memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) {
|
|
vap_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
if (vap_idx < 0) {
|
|
rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n");
|
|
mutex_unlock(&common->mutex);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
vif_info->vap_id = vap_idx;
|
|
adapter->vifs[vap_idx] = vif;
|
|
adapter->sc_nvifs++;
|
|
vap_status = VAP_ADD;
|
|
|
|
if (rsi_set_vap_capabilities(common, intf_mode, vif->addr,
|
|
vif_info->vap_id, vap_status)) {
|
|
rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n");
|
|
mutex_unlock(&common->mutex);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
rsi_send_rx_filter_frame(common, DISALLOW_BEACONS);
|
|
for (i = 0; i < common->max_stations; i++)
|
|
common->stations[i].sta = NULL;
|
|
}
|
|
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_remove_interface() - This function notifies driver that an
|
|
* interface is going down.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
*
|
|
* Return: None.
|
|
*/
|
|
static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
enum opmode opmode;
|
|
int i;
|
|
|
|
rsi_dbg(INFO_ZONE, "Remove Interface Called\n");
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
if (adapter->sc_nvifs <= 0) {
|
|
mutex_unlock(&common->mutex);
|
|
return;
|
|
}
|
|
|
|
opmode = rsi_map_intf_mode(vif->type);
|
|
if (opmode == RSI_OPMODE_UNSUPPORTED) {
|
|
rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode);
|
|
mutex_unlock(&common->mutex);
|
|
return;
|
|
}
|
|
for (i = 0; i < RSI_MAX_VIFS; i++) {
|
|
if (!adapter->vifs[i])
|
|
continue;
|
|
if (vif == adapter->vifs[i]) {
|
|
rsi_set_vap_capabilities(common, opmode, vif->addr,
|
|
i, VAP_DELETE);
|
|
adapter->sc_nvifs--;
|
|
adapter->vifs[i] = NULL;
|
|
}
|
|
}
|
|
mutex_unlock(&common->mutex);
|
|
}
|
|
|
|
/**
|
|
* rsi_channel_change() - This function is a performs the checks
|
|
* required for changing a channel and sets
|
|
* the channel accordingly.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
*
|
|
* Return: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_channel_change(struct ieee80211_hw *hw)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
int status = -EOPNOTSUPP;
|
|
struct ieee80211_channel *curchan = hw->conf.chandef.chan;
|
|
u16 channel = curchan->hw_value;
|
|
struct ieee80211_vif *vif;
|
|
bool assoc = false;
|
|
int i;
|
|
|
|
rsi_dbg(INFO_ZONE,
|
|
"%s: Set channel: %d MHz type: %d channel_no %d\n",
|
|
__func__, curchan->center_freq,
|
|
curchan->flags, channel);
|
|
|
|
for (i = 0; i < RSI_MAX_VIFS; i++) {
|
|
vif = adapter->vifs[i];
|
|
if (!vif)
|
|
continue;
|
|
if (vif->type == NL80211_IFTYPE_STATION) {
|
|
if (vif->cfg.assoc) {
|
|
assoc = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (assoc) {
|
|
if (!common->hw_data_qs_blocked &&
|
|
(rsi_get_connected_channel(vif) != channel)) {
|
|
rsi_dbg(INFO_ZONE, "blk data q %d\n", channel);
|
|
if (!rsi_send_block_unblock_frame(common, true))
|
|
common->hw_data_qs_blocked = true;
|
|
}
|
|
}
|
|
|
|
status = rsi_band_check(common, curchan);
|
|
if (!status)
|
|
status = rsi_set_channel(adapter->priv, curchan);
|
|
|
|
if (assoc) {
|
|
if (common->hw_data_qs_blocked &&
|
|
(rsi_get_connected_channel(vif) == channel)) {
|
|
rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel);
|
|
if (!rsi_send_block_unblock_frame(common, false))
|
|
common->hw_data_qs_blocked = false;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* rsi_config_power() - This function configures tx power to device
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
*
|
|
* Return: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_config_power(struct ieee80211_hw *hw)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
|
|
if (adapter->sc_nvifs <= 0) {
|
|
rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
rsi_dbg(INFO_ZONE,
|
|
"%s: Set tx power: %d dBM\n", __func__, conf->power_level);
|
|
|
|
if (conf->power_level == common->tx_power)
|
|
return 0;
|
|
|
|
common->tx_power = conf->power_level;
|
|
|
|
return rsi_send_radio_params_update(common);
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_config() - This function is a handler for configuration
|
|
* requests. The stack calls this function to
|
|
* change hardware configuration, e.g., channel.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @changed: Changed flags set.
|
|
*
|
|
* Return: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_config(struct ieee80211_hw *hw,
|
|
u32 changed)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
int status = -EOPNOTSUPP;
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
|
|
status = rsi_channel_change(hw);
|
|
|
|
/* tx power */
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER) {
|
|
rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__);
|
|
status = rsi_config_power(hw);
|
|
}
|
|
|
|
/* Power save parameters */
|
|
if ((changed & IEEE80211_CONF_CHANGE_PS) &&
|
|
!common->mac_ops_resumed) {
|
|
struct ieee80211_vif *vif, *sta_vif = NULL;
|
|
unsigned long flags;
|
|
int i, set_ps = 1;
|
|
|
|
for (i = 0; i < RSI_MAX_VIFS; i++) {
|
|
vif = adapter->vifs[i];
|
|
if (!vif)
|
|
continue;
|
|
/* Don't go to power save if AP vap exists */
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
set_ps = 0;
|
|
break;
|
|
}
|
|
if ((vif->type == NL80211_IFTYPE_STATION ||
|
|
vif->type == NL80211_IFTYPE_P2P_CLIENT) &&
|
|
(!sta_vif || vif->cfg.assoc))
|
|
sta_vif = vif;
|
|
}
|
|
if (set_ps && sta_vif) {
|
|
spin_lock_irqsave(&adapter->ps_lock, flags);
|
|
if (conf->flags & IEEE80211_CONF_PS)
|
|
rsi_enable_ps(adapter, sta_vif);
|
|
else
|
|
rsi_disable_ps(adapter, sta_vif);
|
|
spin_unlock_irqrestore(&adapter->ps_lock, flags);
|
|
}
|
|
}
|
|
|
|
/* RTS threshold */
|
|
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
|
|
rsi_dbg(INFO_ZONE, "RTS threshold\n");
|
|
if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) {
|
|
rsi_dbg(INFO_ZONE,
|
|
"%s: Sending vap updates....\n", __func__);
|
|
status = rsi_send_vap_dynamic_update(common);
|
|
}
|
|
}
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* rsi_get_connected_channel() - This function is used to get the current
|
|
* connected channel number.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
*
|
|
* Return: Current connected AP's channel number is returned.
|
|
*/
|
|
u16 rsi_get_connected_channel(struct ieee80211_vif *vif)
|
|
{
|
|
struct ieee80211_bss_conf *bss;
|
|
struct ieee80211_channel *channel;
|
|
|
|
if (!vif)
|
|
return 0;
|
|
|
|
bss = &vif->bss_conf;
|
|
channel = bss->chandef.chan;
|
|
|
|
if (!channel)
|
|
return 0;
|
|
|
|
return channel->hw_value;
|
|
}
|
|
|
|
static void rsi_switch_channel(struct rsi_hw *adapter,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_channel *channel;
|
|
|
|
if (common->iface_down)
|
|
return;
|
|
if (!vif)
|
|
return;
|
|
|
|
channel = vif->bss_conf.chandef.chan;
|
|
|
|
if (!channel)
|
|
return;
|
|
|
|
rsi_band_check(common, channel);
|
|
rsi_set_channel(common, channel);
|
|
rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value);
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_bss_info_changed() - This function is a handler for config
|
|
* requests related to BSS parameters that
|
|
* may vary during BSS's lifespan.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @bss_conf: Pointer to the ieee80211_bss_conf structure.
|
|
* @changed: Changed flags set.
|
|
*
|
|
* Return: None.
|
|
*/
|
|
static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u64 changed)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_bss_conf *bss = &vif->bss_conf;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
u16 rx_filter_word = 0;
|
|
|
|
mutex_lock(&common->mutex);
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n",
|
|
__func__, vif->cfg.assoc);
|
|
if (vif->cfg.assoc) {
|
|
/* Send the RX filter frame */
|
|
rx_filter_word = (ALLOW_DATA_ASSOC_PEER |
|
|
ALLOW_CTRL_ASSOC_PEER |
|
|
ALLOW_MGMT_ASSOC_PEER);
|
|
rsi_send_rx_filter_frame(common, rx_filter_word);
|
|
}
|
|
rsi_inform_bss_status(common,
|
|
RSI_OPMODE_STA,
|
|
vif->cfg.assoc,
|
|
bss_conf->bssid,
|
|
bss_conf->qos,
|
|
vif->cfg.aid,
|
|
NULL, 0,
|
|
bss_conf->assoc_capability, vif);
|
|
adapter->ps_info.dtim_interval_duration = bss->dtim_period;
|
|
adapter->ps_info.listen_interval = conf->listen_interval;
|
|
|
|
/* If U-APSD is updated, send ps parameters to firmware */
|
|
if (vif->cfg.assoc) {
|
|
if (common->uapsd_bitmap) {
|
|
rsi_dbg(INFO_ZONE, "Configuring UAPSD\n");
|
|
rsi_conf_uapsd(adapter, vif);
|
|
}
|
|
} else {
|
|
common->uapsd_bitmap = 0;
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_CQM) {
|
|
common->cqm_info.last_cqm_event_rssi = 0;
|
|
common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold;
|
|
common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst;
|
|
rsi_dbg(INFO_ZONE, "RSSI threshold & hysteresis are: %d %d\n",
|
|
common->cqm_info.rssi_thold,
|
|
common->cqm_info.rssi_hyst);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BEACON_INT) {
|
|
rsi_dbg(INFO_ZONE, "%s: Changed Beacon interval: %d\n",
|
|
__func__, bss_conf->beacon_int);
|
|
if (common->beacon_interval != bss->beacon_int) {
|
|
common->beacon_interval = bss->beacon_int;
|
|
if (vif->type == NL80211_IFTYPE_AP) {
|
|
struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv;
|
|
|
|
rsi_set_vap_capabilities(common, RSI_OPMODE_AP,
|
|
vif->addr, vif_info->vap_id,
|
|
VAP_UPDATE);
|
|
}
|
|
}
|
|
adapter->ps_info.listen_interval =
|
|
bss->beacon_int * adapter->ps_info.num_bcns_per_lis_int;
|
|
}
|
|
|
|
if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
|
|
((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO))) {
|
|
if (bss->enable_beacon) {
|
|
rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n");
|
|
common->beacon_enabled = 1;
|
|
} else {
|
|
rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n");
|
|
common->beacon_enabled = 0;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&common->mutex);
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_conf_filter() - This function configure the device's RX filter.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @changed_flags: Changed flags set.
|
|
* @total_flags: Total initial flags set.
|
|
* @multicast: Multicast.
|
|
*
|
|
* Return: None.
|
|
*/
|
|
static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw,
|
|
u32 changed_flags,
|
|
u32 *total_flags,
|
|
u64 multicast)
|
|
{
|
|
/* Not doing much here as of now */
|
|
*total_flags &= RSI_SUPP_FILTERS;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_conf_tx() - This function configures TX queue parameters
|
|
* (EDCF (aifs, cw_min, cw_max), bursting)
|
|
* for a hardware TX queue.
|
|
* @hw: Pointer to the ieee80211_hw structure
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @queue: Queue number.
|
|
* @params: Pointer to ieee80211_tx_queue_params structure.
|
|
*
|
|
* Return: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
unsigned int link_id, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
u8 idx = 0;
|
|
|
|
if (queue >= IEEE80211_NUM_ACS)
|
|
return 0;
|
|
|
|
rsi_dbg(INFO_ZONE,
|
|
"%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n",
|
|
__func__, queue, params->aifs,
|
|
params->cw_min, params->cw_max, params->txop);
|
|
|
|
mutex_lock(&common->mutex);
|
|
/* Map into the way the f/w expects */
|
|
switch (queue) {
|
|
case IEEE80211_AC_VO:
|
|
idx = VO_Q;
|
|
break;
|
|
case IEEE80211_AC_VI:
|
|
idx = VI_Q;
|
|
break;
|
|
case IEEE80211_AC_BE:
|
|
idx = BE_Q;
|
|
break;
|
|
case IEEE80211_AC_BK:
|
|
idx = BK_Q;
|
|
break;
|
|
default:
|
|
idx = BE_Q;
|
|
break;
|
|
}
|
|
|
|
memcpy(&common->edca_params[idx],
|
|
params,
|
|
sizeof(struct ieee80211_tx_queue_params));
|
|
|
|
if (params->uapsd)
|
|
common->uapsd_bitmap |= idx;
|
|
else
|
|
common->uapsd_bitmap &= (~idx);
|
|
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_hal_key_config() - This function loads the keys into the firmware.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @key: Pointer to the ieee80211_key_conf structure.
|
|
* @sta: Pointer to the ieee80211_sta structure.
|
|
*
|
|
* Return: status: 0 on success, negative error codes on failure.
|
|
*/
|
|
static int rsi_hal_key_config(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_key_conf *key,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_sta *rsta = NULL;
|
|
int status;
|
|
u8 key_type;
|
|
s16 sta_id = 0;
|
|
|
|
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
|
|
key_type = RSI_PAIRWISE_KEY;
|
|
else
|
|
key_type = RSI_GROUP_KEY;
|
|
|
|
rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n",
|
|
__func__, key->cipher, key_type, key->keylen);
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
if (sta) {
|
|
rsta = rsi_find_sta(adapter->priv, sta->addr);
|
|
if (rsta)
|
|
sta_id = rsta->sta_id;
|
|
}
|
|
adapter->priv->key = key;
|
|
} else {
|
|
if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) ||
|
|
(key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
|
|
status = rsi_hal_load_key(adapter->priv,
|
|
key->key,
|
|
key->keylen,
|
|
RSI_PAIRWISE_KEY,
|
|
key->keyidx,
|
|
key->cipher,
|
|
sta_id,
|
|
vif);
|
|
if (status)
|
|
return status;
|
|
}
|
|
}
|
|
|
|
status = rsi_hal_load_key(adapter->priv,
|
|
key->key,
|
|
key->keylen,
|
|
key_type,
|
|
key->keyidx,
|
|
key->cipher,
|
|
sta_id,
|
|
vif);
|
|
if (status)
|
|
return status;
|
|
|
|
if (vif->type == NL80211_IFTYPE_STATION &&
|
|
(key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
|
|
key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
|
|
if (!rsi_send_block_unblock_frame(adapter->priv, false))
|
|
adapter->priv->hw_data_qs_blocked = false;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_set_key() - This function sets type of key to be loaded.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @cmd: enum set_key_cmd.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @sta: Pointer to the ieee80211_sta structure.
|
|
* @key: Pointer to the ieee80211_key_conf structure.
|
|
*
|
|
* Return: status: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_set_key(struct ieee80211_hw *hw,
|
|
enum set_key_cmd cmd,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct security_info *secinfo = &common->secinfo;
|
|
int status;
|
|
|
|
mutex_lock(&common->mutex);
|
|
switch (cmd) {
|
|
case SET_KEY:
|
|
status = rsi_hal_key_config(hw, vif, key, sta);
|
|
if (status) {
|
|
mutex_unlock(&common->mutex);
|
|
return status;
|
|
}
|
|
|
|
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
|
|
secinfo->ptk_cipher = key->cipher;
|
|
else
|
|
secinfo->gtk_cipher = key->cipher;
|
|
|
|
key->hw_key_idx = key->keyidx;
|
|
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
|
|
rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__);
|
|
break;
|
|
|
|
case DISABLE_KEY:
|
|
rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__);
|
|
memset(key, 0, sizeof(struct ieee80211_key_conf));
|
|
status = rsi_hal_key_config(hw, vif, key, sta);
|
|
break;
|
|
|
|
default:
|
|
status = -EOPNOTSUPP;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&common->mutex);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_ampdu_action() - This function selects the AMPDU action for
|
|
* the corresponding mlme_action flag and
|
|
* informs the f/w regarding this.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @params: Pointer to A-MPDU action parameters
|
|
*
|
|
* Return: status: 0 on success, negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_ampdu_params *params)
|
|
{
|
|
int status = -EOPNOTSUPP;
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct rsi_sta *rsta = NULL;
|
|
u16 seq_no = 0, seq_start = 0;
|
|
u8 ii = 0;
|
|
struct ieee80211_sta *sta = params->sta;
|
|
u8 sta_id = 0;
|
|
enum ieee80211_ampdu_mlme_action action = params->action;
|
|
u16 tid = params->tid;
|
|
u16 *ssn = ¶ms->ssn;
|
|
u8 buf_size = params->buf_size;
|
|
|
|
for (ii = 0; ii < RSI_MAX_VIFS; ii++) {
|
|
if (vif == adapter->vifs[ii])
|
|
break;
|
|
}
|
|
|
|
if (ii >= RSI_MAX_VIFS)
|
|
return status;
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
if (ssn != NULL)
|
|
seq_no = *ssn;
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
rsta = rsi_find_sta(common, sta->addr);
|
|
if (!rsta) {
|
|
rsi_dbg(ERR_ZONE, "No station mapped\n");
|
|
status = 0;
|
|
goto unlock;
|
|
}
|
|
sta_id = rsta->sta_id;
|
|
}
|
|
|
|
rsi_dbg(INFO_ZONE,
|
|
"%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n",
|
|
__func__, tid, seq_no, buf_size, sta_id);
|
|
|
|
switch (action) {
|
|
case IEEE80211_AMPDU_RX_START:
|
|
status = rsi_send_aggregation_params_frame(common,
|
|
tid,
|
|
seq_no,
|
|
buf_size,
|
|
STA_RX_ADDBA_DONE,
|
|
sta_id);
|
|
break;
|
|
|
|
case IEEE80211_AMPDU_RX_STOP:
|
|
status = rsi_send_aggregation_params_frame(common,
|
|
tid,
|
|
0,
|
|
buf_size,
|
|
STA_RX_DELBA,
|
|
sta_id);
|
|
break;
|
|
|
|
case IEEE80211_AMPDU_TX_START:
|
|
if ((vif->type == NL80211_IFTYPE_STATION) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT))
|
|
common->vif_info[ii].seq_start = seq_no;
|
|
else if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO))
|
|
rsta->seq_start[tid] = seq_no;
|
|
status = IEEE80211_AMPDU_TX_START_IMMEDIATE;
|
|
break;
|
|
|
|
case IEEE80211_AMPDU_TX_STOP_CONT:
|
|
case IEEE80211_AMPDU_TX_STOP_FLUSH:
|
|
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
|
|
status = rsi_send_aggregation_params_frame(common,
|
|
tid,
|
|
seq_no,
|
|
buf_size,
|
|
STA_TX_DELBA,
|
|
sta_id);
|
|
if (!status)
|
|
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
break;
|
|
|
|
case IEEE80211_AMPDU_TX_OPERATIONAL:
|
|
if ((vif->type == NL80211_IFTYPE_STATION) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT))
|
|
seq_start = common->vif_info[ii].seq_start;
|
|
else if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO))
|
|
seq_start = rsta->seq_start[tid];
|
|
status = rsi_send_aggregation_params_frame(common,
|
|
tid,
|
|
seq_start,
|
|
buf_size,
|
|
STA_TX_ADDBA_DONE,
|
|
sta_id);
|
|
break;
|
|
|
|
default:
|
|
rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__);
|
|
break;
|
|
}
|
|
|
|
unlock:
|
|
mutex_unlock(&common->mutex);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_set_rts_threshold() - This function sets rts threshold value.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @value: Rts threshold value.
|
|
*
|
|
* Return: 0 on success.
|
|
*/
|
|
static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw,
|
|
u32 value)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
mutex_lock(&common->mutex);
|
|
common->rts_threshold = value;
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used.
|
|
* @hw: Pointer to the ieee80211_hw structure
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @mask: Pointer to the cfg80211_bitrate_mask structure.
|
|
*
|
|
* Return: 0 on success.
|
|
*/
|
|
static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
const struct cfg80211_bitrate_mask *mask)
|
|
{
|
|
const unsigned int mcs_offset = ARRAY_SIZE(rsi_rates);
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
int i;
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(common->rate_config); i++) {
|
|
struct rsi_rate_config *cfg = &common->rate_config[i];
|
|
u32 bm;
|
|
|
|
bm = mask->control[i].legacy | (mask->control[i].ht_mcs[0] << mcs_offset);
|
|
if (hweight32(bm) == 1) { /* single rate */
|
|
int rate_index = ffs(bm) - 1;
|
|
|
|
if (rate_index < mcs_offset)
|
|
cfg->fixed_hw_rate = rsi_rates[rate_index].hw_value;
|
|
else
|
|
cfg->fixed_hw_rate = rsi_mcsrates[rate_index - mcs_offset];
|
|
cfg->fixed_enabled = true;
|
|
} else {
|
|
cfg->configured_mask = bm;
|
|
cfg->fixed_enabled = false;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_perform_cqm() - This function performs cqm.
|
|
* @common: Pointer to the driver private structure.
|
|
* @bssid: pointer to the bssid.
|
|
* @rssi: RSSI value.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
*/
|
|
static void rsi_perform_cqm(struct rsi_common *common,
|
|
u8 *bssid,
|
|
s8 rssi,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
s8 last_event = common->cqm_info.last_cqm_event_rssi;
|
|
int thold = common->cqm_info.rssi_thold;
|
|
u32 hyst = common->cqm_info.rssi_hyst;
|
|
enum nl80211_cqm_rssi_threshold_event event;
|
|
|
|
if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst)))
|
|
event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
|
|
else if (rssi > thold &&
|
|
(last_event == 0 || rssi > (last_event + hyst)))
|
|
event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
|
|
else
|
|
return;
|
|
|
|
common->cqm_info.last_cqm_event_rssi = rssi;
|
|
rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event);
|
|
ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* rsi_fill_rx_status() - This function fills rx status in
|
|
* ieee80211_rx_status structure.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @skb: Pointer to the socket buffer structure.
|
|
* @common: Pointer to the driver private structure.
|
|
* @rxs: Pointer to the ieee80211_rx_status structure.
|
|
*
|
|
* Return: None.
|
|
*/
|
|
static void rsi_fill_rx_status(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb,
|
|
struct rsi_common *common,
|
|
struct ieee80211_rx_status *rxs)
|
|
{
|
|
struct rsi_hw *adapter = common->priv;
|
|
struct ieee80211_vif *vif;
|
|
struct ieee80211_bss_conf *bss = NULL;
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct skb_info *rx_params = (struct skb_info *)info->driver_data;
|
|
struct ieee80211_hdr *hdr;
|
|
char rssi = rx_params->rssi;
|
|
u8 hdrlen = 0;
|
|
u8 channel = rx_params->channel;
|
|
s32 freq;
|
|
int i;
|
|
|
|
hdr = ((struct ieee80211_hdr *)(skb->data));
|
|
hdrlen = ieee80211_hdrlen(hdr->frame_control);
|
|
|
|
memset(info, 0, sizeof(struct ieee80211_tx_info));
|
|
|
|
rxs->signal = -(rssi);
|
|
|
|
rxs->band = common->band;
|
|
|
|
freq = ieee80211_channel_to_frequency(channel, rxs->band);
|
|
|
|
if (freq)
|
|
rxs->freq = freq;
|
|
|
|
if (ieee80211_has_protected(hdr->frame_control)) {
|
|
if (rsi_is_cipher_wep(common)) {
|
|
memmove(skb->data + 4, skb->data, hdrlen);
|
|
skb_pull(skb, 4);
|
|
} else {
|
|
memmove(skb->data + 8, skb->data, hdrlen);
|
|
skb_pull(skb, 8);
|
|
rxs->flag |= RX_FLAG_MMIC_STRIPPED;
|
|
}
|
|
rxs->flag |= RX_FLAG_DECRYPTED;
|
|
rxs->flag |= RX_FLAG_IV_STRIPPED;
|
|
}
|
|
|
|
for (i = 0; i < RSI_MAX_VIFS; i++) {
|
|
vif = adapter->vifs[i];
|
|
if (!vif)
|
|
continue;
|
|
if (vif->type == NL80211_IFTYPE_STATION) {
|
|
bss = &vif->bss_conf;
|
|
break;
|
|
}
|
|
}
|
|
if (!bss)
|
|
return;
|
|
/* CQM only for connected AP beacons, the RSSI is a weighted avg */
|
|
if (vif->cfg.assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) {
|
|
if (ieee80211_is_beacon(hdr->frame_control))
|
|
rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* rsi_indicate_pkt_to_os() - This function sends received packet to mac80211.
|
|
* @common: Pointer to the driver private structure.
|
|
* @skb: Pointer to the socket buffer structure.
|
|
*
|
|
* Return: None.
|
|
*/
|
|
void rsi_indicate_pkt_to_os(struct rsi_common *common,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct rsi_hw *adapter = common->priv;
|
|
struct ieee80211_hw *hw = adapter->hw;
|
|
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
|
|
|
|
if ((common->iface_down) || (!adapter->sc_nvifs)) {
|
|
dev_kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
/* filling in the ieee80211_rx_status flags */
|
|
rsi_fill_rx_status(hw, skb, common, rx_status);
|
|
|
|
ieee80211_rx_irqsafe(hw, skb);
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_sta_add() - This function notifies driver about a peer getting
|
|
* connected.
|
|
* @hw: pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @sta: Pointer to the ieee80211_sta structure.
|
|
*
|
|
* Return: 0 on success, negative error codes on failure.
|
|
*/
|
|
static int rsi_mac80211_sta_add(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
bool sta_exist = false;
|
|
struct rsi_sta *rsta;
|
|
int status = 0;
|
|
|
|
rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr);
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
u8 cnt;
|
|
int sta_idx = -1;
|
|
int free_index = -1;
|
|
|
|
/* Check if max stations reached */
|
|
if (common->num_stations >= common->max_stations) {
|
|
rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n");
|
|
status = -EOPNOTSUPP;
|
|
goto unlock;
|
|
}
|
|
for (cnt = 0; cnt < common->max_stations; cnt++) {
|
|
rsta = &common->stations[cnt];
|
|
|
|
if (!rsta->sta) {
|
|
if (free_index < 0)
|
|
free_index = cnt;
|
|
continue;
|
|
}
|
|
if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) {
|
|
rsi_dbg(INFO_ZONE, "Station exists\n");
|
|
sta_idx = cnt;
|
|
sta_exist = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!sta_exist) {
|
|
if (free_index >= 0)
|
|
sta_idx = free_index;
|
|
}
|
|
if (sta_idx < 0) {
|
|
rsi_dbg(ERR_ZONE,
|
|
"%s: Some problem reaching here...\n",
|
|
__func__);
|
|
status = -EINVAL;
|
|
goto unlock;
|
|
}
|
|
rsta = &common->stations[sta_idx];
|
|
rsta->sta = sta;
|
|
rsta->sta_id = sta_idx;
|
|
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
|
|
rsta->start_tx_aggr[cnt] = false;
|
|
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
|
|
rsta->seq_start[cnt] = 0;
|
|
if (!sta_exist) {
|
|
rsi_dbg(INFO_ZONE, "New Station\n");
|
|
|
|
/* Send peer notify to device */
|
|
rsi_dbg(INFO_ZONE, "Indicate bss status to device\n");
|
|
rsi_inform_bss_status(common, RSI_OPMODE_AP, 1,
|
|
sta->addr, sta->wme, sta->aid,
|
|
sta, sta_idx, 0, vif);
|
|
|
|
if (common->key) {
|
|
struct ieee80211_key_conf *key = common->key;
|
|
|
|
if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) ||
|
|
(key->cipher == WLAN_CIPHER_SUITE_WEP40))
|
|
rsi_hal_load_key(adapter->priv,
|
|
key->key,
|
|
key->keylen,
|
|
RSI_PAIRWISE_KEY,
|
|
key->keyidx,
|
|
key->cipher,
|
|
sta_idx,
|
|
vif);
|
|
}
|
|
|
|
common->num_stations++;
|
|
}
|
|
}
|
|
|
|
if ((vif->type == NL80211_IFTYPE_STATION) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) {
|
|
common->bitrate_mask[common->band] = sta->deflink.supp_rates[common->band];
|
|
common->vif_info[0].is_ht = sta->deflink.ht_cap.ht_supported;
|
|
if (sta->deflink.ht_cap.ht_supported) {
|
|
common->bitrate_mask[NL80211_BAND_2GHZ] =
|
|
sta->deflink.supp_rates[NL80211_BAND_2GHZ];
|
|
if ((sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ||
|
|
(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
|
|
common->vif_info[0].sgi = true;
|
|
ieee80211_start_tx_ba_session(sta, 0, 0);
|
|
}
|
|
}
|
|
|
|
unlock:
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_sta_remove() - This function notifies driver about a peer
|
|
* getting disconnected.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @vif: Pointer to the ieee80211_vif structure.
|
|
* @sta: Pointer to the ieee80211_sta structure.
|
|
*
|
|
* Return: 0 on success, negative error codes on failure.
|
|
*/
|
|
static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_bss_conf *bss = &vif->bss_conf;
|
|
struct rsi_sta *rsta;
|
|
|
|
rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr);
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
u8 sta_idx, cnt;
|
|
|
|
/* Send peer notify to device */
|
|
rsi_dbg(INFO_ZONE, "Indicate bss status to device\n");
|
|
for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) {
|
|
rsta = &common->stations[sta_idx];
|
|
|
|
if (!rsta->sta)
|
|
continue;
|
|
if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) {
|
|
rsi_inform_bss_status(common, RSI_OPMODE_AP, 0,
|
|
sta->addr, sta->wme,
|
|
sta->aid, sta, sta_idx,
|
|
0, vif);
|
|
rsta->sta = NULL;
|
|
rsta->sta_id = -1;
|
|
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
|
|
rsta->start_tx_aggr[cnt] = false;
|
|
if (common->num_stations > 0)
|
|
common->num_stations--;
|
|
break;
|
|
}
|
|
}
|
|
if (sta_idx >= common->max_stations)
|
|
rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__);
|
|
}
|
|
|
|
if ((vif->type == NL80211_IFTYPE_STATION) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) {
|
|
/* Resetting all the fields to default values */
|
|
memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN);
|
|
bss->qos = sta->wme;
|
|
common->bitrate_mask[NL80211_BAND_2GHZ] = 0;
|
|
common->bitrate_mask[NL80211_BAND_5GHZ] = 0;
|
|
common->vif_info[0].is_ht = false;
|
|
common->vif_info[0].sgi = false;
|
|
common->vif_info[0].seq_start = 0;
|
|
common->secinfo.ptk_cipher = 0;
|
|
common->secinfo.gtk_cipher = 0;
|
|
if (!common->iface_down)
|
|
rsi_send_rx_filter_frame(common, 0);
|
|
}
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_set_antenna() - This function is used to configure
|
|
* tx and rx antennas.
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @tx_ant: Bitmap for tx antenna
|
|
* @rx_ant: Bitmap for rx antenna
|
|
*
|
|
* Return: 0 on success, Negative error code on failure.
|
|
*/
|
|
static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw,
|
|
u32 tx_ant, u32 rx_ant)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
u8 antenna = 0;
|
|
|
|
if (tx_ant > 1 || rx_ant > 1) {
|
|
rsi_dbg(ERR_ZONE,
|
|
"Invalid antenna selection (tx: %d, rx:%d)\n",
|
|
tx_ant, rx_ant);
|
|
rsi_dbg(ERR_ZONE,
|
|
"Use 0 for int_ant, 1 for ext_ant\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n",
|
|
__func__, tx_ant, rx_ant);
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT;
|
|
if (common->ant_in_use != antenna)
|
|
if (rsi_set_antenna(common, antenna))
|
|
goto fail_set_antenna;
|
|
|
|
rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n",
|
|
tx_ant ? "UFL" : "INT");
|
|
|
|
common->ant_in_use = antenna;
|
|
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
|
|
fail_set_antenna:
|
|
rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__);
|
|
mutex_unlock(&common->mutex);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* rsi_mac80211_get_antenna() - This function is used to configure
|
|
* tx and rx antennas.
|
|
*
|
|
* @hw: Pointer to the ieee80211_hw structure.
|
|
* @tx_ant: Bitmap for tx antenna
|
|
* @rx_ant: Bitmap for rx antenna
|
|
*
|
|
* Return: 0 on success, negative error codes on failure.
|
|
*/
|
|
static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw,
|
|
u32 *tx_ant, u32 *rx_ant)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
*tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0;
|
|
*rx_ant = 0;
|
|
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rsi_map_region_code(enum nl80211_dfs_regions region_code)
|
|
{
|
|
switch (region_code) {
|
|
case NL80211_DFS_FCC:
|
|
return RSI_REGION_FCC;
|
|
case NL80211_DFS_ETSI:
|
|
return RSI_REGION_ETSI;
|
|
case NL80211_DFS_JP:
|
|
return RSI_REGION_TELEC;
|
|
case NL80211_DFS_UNSET:
|
|
return RSI_REGION_WORLD;
|
|
}
|
|
return RSI_REGION_WORLD;
|
|
}
|
|
|
|
static void rsi_reg_notify(struct wiphy *wiphy,
|
|
struct regulatory_request *request)
|
|
{
|
|
struct ieee80211_supported_band *sband;
|
|
struct ieee80211_channel *ch;
|
|
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
|
|
struct rsi_hw * adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
int i;
|
|
|
|
mutex_lock(&common->mutex);
|
|
|
|
rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n",
|
|
request->alpha2, request->dfs_region);
|
|
|
|
if (common->num_supp_bands > 1) {
|
|
sband = wiphy->bands[NL80211_BAND_5GHZ];
|
|
|
|
for (i = 0; i < sband->n_channels; i++) {
|
|
ch = &sband->channels[i];
|
|
if (ch->flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
if (ch->flags & IEEE80211_CHAN_RADAR)
|
|
ch->flags |= IEEE80211_CHAN_NO_IR;
|
|
}
|
|
}
|
|
adapter->dfs_region = rsi_map_region_code(request->dfs_region);
|
|
rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region);
|
|
|
|
adapter->country[0] = request->alpha2[0];
|
|
adapter->country[1] = request->alpha2[1];
|
|
|
|
mutex_unlock(&common->mutex);
|
|
}
|
|
|
|
static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
mutex_lock(&common->mutex);
|
|
if (common->fsm_state != FSM_MAC_INIT_DONE)
|
|
wiphy_rfkill_set_hw_state(hw->wiphy, true);
|
|
else
|
|
wiphy_rfkill_set_hw_state(hw->wiphy, false);
|
|
mutex_unlock(&common->mutex);
|
|
}
|
|
|
|
static void rsi_resume_conn_channel(struct rsi_common *common)
|
|
{
|
|
struct rsi_hw *adapter = common->priv;
|
|
struct ieee80211_vif *vif;
|
|
int cnt;
|
|
|
|
for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) {
|
|
vif = adapter->vifs[cnt];
|
|
if (!vif)
|
|
continue;
|
|
|
|
if ((vif->type == NL80211_IFTYPE_AP) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_GO)) {
|
|
rsi_switch_channel(adapter, vif);
|
|
break;
|
|
}
|
|
if (((vif->type == NL80211_IFTYPE_STATION) ||
|
|
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) &&
|
|
vif->cfg.assoc) {
|
|
rsi_switch_channel(adapter, vif);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void rsi_roc_timeout(struct timer_list *t)
|
|
{
|
|
struct rsi_common *common = from_timer(common, t, roc_timer);
|
|
|
|
rsi_dbg(INFO_ZONE, "Remain on channel expired\n");
|
|
|
|
mutex_lock(&common->mutex);
|
|
ieee80211_remain_on_channel_expired(common->priv->hw);
|
|
|
|
if (timer_pending(&common->roc_timer))
|
|
del_timer(&common->roc_timer);
|
|
|
|
rsi_resume_conn_channel(common);
|
|
mutex_unlock(&common->mutex);
|
|
}
|
|
|
|
static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
|
struct ieee80211_channel *chan, int duration,
|
|
enum ieee80211_roc_type type)
|
|
{
|
|
struct rsi_hw *adapter = (struct rsi_hw *)hw->priv;
|
|
struct rsi_common *common = (struct rsi_common *)adapter->priv;
|
|
int status = 0;
|
|
|
|
rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n");
|
|
|
|
mutex_lock(&common->mutex);
|
|
rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n",
|
|
__func__, chan->hw_value, duration);
|
|
|
|
if (timer_pending(&common->roc_timer)) {
|
|
rsi_dbg(INFO_ZONE, "Stop on-going ROC\n");
|
|
del_timer(&common->roc_timer);
|
|
}
|
|
common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies;
|
|
add_timer(&common->roc_timer);
|
|
|
|
/* Configure band */
|
|
if (rsi_band_check(common, chan)) {
|
|
rsi_dbg(ERR_ZONE, "Failed to set band\n");
|
|
status = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/* Configure channel */
|
|
if (rsi_set_channel(common, chan)) {
|
|
rsi_dbg(ERR_ZONE, "Failed to set the channel\n");
|
|
status = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
common->roc_vif = vif;
|
|
ieee80211_ready_on_channel(hw);
|
|
rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n",
|
|
__func__, chan->hw_value);
|
|
|
|
out:
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
rsi_dbg(INFO_ZONE, "Cancel remain on channel\n");
|
|
|
|
mutex_lock(&common->mutex);
|
|
if (!timer_pending(&common->roc_timer)) {
|
|
mutex_unlock(&common->mutex);
|
|
return 0;
|
|
}
|
|
|
|
del_timer(&common->roc_timer);
|
|
|
|
rsi_resume_conn_channel(common);
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static const struct wiphy_wowlan_support rsi_wowlan_support = {
|
|
.flags = WIPHY_WOWLAN_ANY |
|
|
WIPHY_WOWLAN_MAGIC_PKT |
|
|
WIPHY_WOWLAN_DISCONNECT |
|
|
WIPHY_WOWLAN_GTK_REKEY_FAILURE |
|
|
WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
|
|
WIPHY_WOWLAN_EAP_IDENTITY_REQ |
|
|
WIPHY_WOWLAN_4WAY_HANDSHAKE,
|
|
};
|
|
|
|
static u16 rsi_wow_map_triggers(struct rsi_common *common,
|
|
struct cfg80211_wowlan *wowlan)
|
|
{
|
|
u16 wow_triggers = 0;
|
|
|
|
rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n");
|
|
|
|
if (wowlan->any)
|
|
wow_triggers |= RSI_WOW_ANY;
|
|
if (wowlan->magic_pkt)
|
|
wow_triggers |= RSI_WOW_MAGIC_PKT;
|
|
if (wowlan->disconnect)
|
|
wow_triggers |= RSI_WOW_DISCONNECT;
|
|
if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req ||
|
|
wowlan->four_way_handshake)
|
|
wow_triggers |= RSI_WOW_GTK_REKEY;
|
|
|
|
return wow_triggers;
|
|
}
|
|
|
|
int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan)
|
|
{
|
|
struct rsi_common *common = adapter->priv;
|
|
struct ieee80211_vif *vif = adapter->vifs[0];
|
|
u16 triggers = 0;
|
|
u16 rx_filter_word = 0;
|
|
|
|
rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n");
|
|
|
|
if (!vif)
|
|
return -EINVAL;
|
|
|
|
if (WARN_ON(!wowlan)) {
|
|
rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
common->wow_flags |= RSI_WOW_ENABLED;
|
|
triggers = rsi_wow_map_triggers(common, wowlan);
|
|
if (!triggers) {
|
|
rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
if (!vif->cfg.assoc) {
|
|
rsi_dbg(ERR_ZONE,
|
|
"Cannot configure WoWLAN (Station not connected)\n");
|
|
common->wow_flags |= RSI_WOW_NO_CONNECTION;
|
|
return 0;
|
|
}
|
|
rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers);
|
|
|
|
if (common->coex_mode > 1)
|
|
rsi_disable_ps(adapter, adapter->vifs[0]);
|
|
|
|
rsi_send_wowlan_request(common, triggers, 1);
|
|
|
|
/**
|
|
* Increase the beacon_miss threshold & keep-alive timers in
|
|
* vap_update frame
|
|
*/
|
|
rsi_send_vap_dynamic_update(common);
|
|
|
|
rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS);
|
|
rsi_send_rx_filter_frame(common, rx_filter_word);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(rsi_config_wowlan);
|
|
|
|
static int rsi_mac80211_suspend(struct ieee80211_hw *hw,
|
|
struct cfg80211_wowlan *wowlan)
|
|
{
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__);
|
|
mutex_lock(&common->mutex);
|
|
if (rsi_config_wowlan(adapter, wowlan)) {
|
|
rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");
|
|
mutex_unlock(&common->mutex);
|
|
return 1;
|
|
}
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rsi_mac80211_resume(struct ieee80211_hw *hw)
|
|
{
|
|
u16 rx_filter_word = 0;
|
|
struct rsi_hw *adapter = hw->priv;
|
|
struct rsi_common *common = adapter->priv;
|
|
|
|
common->wow_flags = 0;
|
|
|
|
rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__);
|
|
|
|
if (common->hibernate_resume) {
|
|
common->mac_ops_resumed = true;
|
|
/* Device need a complete restart of all MAC operations.
|
|
* returning 1 will serve this purpose.
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
mutex_lock(&common->mutex);
|
|
rsi_send_wowlan_request(common, 0, 0);
|
|
|
|
rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER |
|
|
ALLOW_MGMT_ASSOC_PEER);
|
|
rsi_send_rx_filter_frame(common, rx_filter_word);
|
|
mutex_unlock(&common->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
static const struct ieee80211_ops mac80211_ops = {
|
|
.tx = rsi_mac80211_tx,
|
|
.start = rsi_mac80211_start,
|
|
.stop = rsi_mac80211_stop,
|
|
.add_interface = rsi_mac80211_add_interface,
|
|
.remove_interface = rsi_mac80211_remove_interface,
|
|
.config = rsi_mac80211_config,
|
|
.bss_info_changed = rsi_mac80211_bss_info_changed,
|
|
.conf_tx = rsi_mac80211_conf_tx,
|
|
.configure_filter = rsi_mac80211_conf_filter,
|
|
.set_key = rsi_mac80211_set_key,
|
|
.set_rts_threshold = rsi_mac80211_set_rts_threshold,
|
|
.set_bitrate_mask = rsi_mac80211_set_rate_mask,
|
|
.ampdu_action = rsi_mac80211_ampdu_action,
|
|
.sta_add = rsi_mac80211_sta_add,
|
|
.sta_remove = rsi_mac80211_sta_remove,
|
|
.set_antenna = rsi_mac80211_set_antenna,
|
|
.get_antenna = rsi_mac80211_get_antenna,
|
|
.rfkill_poll = rsi_mac80211_rfkill_poll,
|
|
.remain_on_channel = rsi_mac80211_roc,
|
|
.cancel_remain_on_channel = rsi_mac80211_cancel_roc,
|
|
#ifdef CONFIG_PM
|
|
.suspend = rsi_mac80211_suspend,
|
|
.resume = rsi_mac80211_resume,
|
|
#endif
|
|
.hw_scan = rsi_mac80211_hw_scan_start,
|
|
.cancel_hw_scan = rsi_mac80211_cancel_hw_scan,
|
|
};
|
|
|
|
/**
|
|
* rsi_mac80211_attach() - This function is used to initialize Mac80211 stack.
|
|
* @common: Pointer to the driver private structure.
|
|
*
|
|
* Return: 0 on success, negative error codes on failure.
|
|
*/
|
|
int rsi_mac80211_attach(struct rsi_common *common)
|
|
{
|
|
int status = 0;
|
|
struct ieee80211_hw *hw = NULL;
|
|
struct wiphy *wiphy = NULL;
|
|
struct rsi_hw *adapter = common->priv;
|
|
u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3};
|
|
|
|
rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__);
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops);
|
|
if (!hw) {
|
|
rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
wiphy = hw->wiphy;
|
|
|
|
SET_IEEE80211_DEV(hw, adapter->device);
|
|
|
|
hw->priv = adapter;
|
|
adapter->hw = hw;
|
|
|
|
ieee80211_hw_set(hw, SIGNAL_DBM);
|
|
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
|
|
ieee80211_hw_set(hw, AMPDU_AGGREGATION);
|
|
ieee80211_hw_set(hw, SUPPORTS_PS);
|
|
ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
|
|
|
|
hw->queues = MAX_HW_QUEUES;
|
|
hw->extra_tx_headroom = RSI_NEEDED_HEADROOM;
|
|
|
|
hw->max_rates = 1;
|
|
hw->max_rate_tries = MAX_RETRIES;
|
|
hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES;
|
|
hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL;
|
|
|
|
hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS;
|
|
hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS;
|
|
hw->rate_control_algorithm = "AARF";
|
|
|
|
SET_IEEE80211_PERM_ADDR(hw, common->mac_addr);
|
|
ether_addr_copy(hw->wiphy->addr_mask, addr_mask);
|
|
|
|
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_AP) |
|
|
BIT(NL80211_IFTYPE_P2P_DEVICE) |
|
|
BIT(NL80211_IFTYPE_P2P_CLIENT) |
|
|
BIT(NL80211_IFTYPE_P2P_GO);
|
|
|
|
wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
|
|
wiphy->retry_short = RETRY_SHORT;
|
|
wiphy->retry_long = RETRY_LONG;
|
|
wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
|
|
wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
|
|
wiphy->flags = 0;
|
|
|
|
wiphy->available_antennas_rx = 1;
|
|
wiphy->available_antennas_tx = 1;
|
|
|
|
status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ);
|
|
if (status)
|
|
return status;
|
|
wiphy->bands[NL80211_BAND_2GHZ] =
|
|
&adapter->sbands[NL80211_BAND_2GHZ];
|
|
if (common->num_supp_bands > 1) {
|
|
status = rsi_register_rates_channels(adapter,
|
|
NL80211_BAND_5GHZ);
|
|
if (status)
|
|
return status;
|
|
wiphy->bands[NL80211_BAND_5GHZ] =
|
|
&adapter->sbands[NL80211_BAND_5GHZ];
|
|
}
|
|
|
|
/* AP Parameters */
|
|
wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1];
|
|
common->max_stations = wiphy->max_ap_assoc_sta;
|
|
rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations);
|
|
hw->sta_data_size = sizeof(struct rsi_sta);
|
|
|
|
wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS;
|
|
wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN;
|
|
wiphy->flags = WIPHY_FLAG_REPORTS_OBSS;
|
|
wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
|
|
wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
|
|
wiphy->reg_notifier = rsi_reg_notify;
|
|
|
|
#ifdef CONFIG_PM
|
|
wiphy->wowlan = &rsi_wowlan_support;
|
|
#endif
|
|
|
|
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
|
|
|
|
/* Wi-Fi direct parameters */
|
|
wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
|
|
wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX;
|
|
wiphy->max_remain_on_channel_duration = 10000;
|
|
hw->max_listen_interval = 10;
|
|
wiphy->iface_combinations = rsi_iface_combinations;
|
|
wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations);
|
|
|
|
if (common->coex_mode > 1)
|
|
wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
|
|
|
|
status = ieee80211_register_hw(hw);
|
|
if (status)
|
|
return status;
|
|
|
|
return rsi_init_dbgfs(adapter);
|
|
}
|