forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
244 lines
8.0 KiB
244 lines
8.0 KiB
/* |
|
* Copyright (c) 2008-2011 Atheros Communications Inc. |
|
* |
|
* Permission to use, copy, modify, and/or distribute this software for any |
|
* purpose with or without fee is hereby granted, provided that the above |
|
* copyright notice and this permission notice appear in all copies. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
|
|
|
/* We use the hw_value as an index into our private channel structure */ |
|
|
|
#include "common.h" |
|
|
|
#define CHAN2G(_freq, _idx) { \ |
|
.band = NL80211_BAND_2GHZ, \ |
|
.center_freq = (_freq), \ |
|
.hw_value = (_idx), \ |
|
.max_power = 20, \ |
|
} |
|
|
|
#define CHAN5G(_freq, _idx) { \ |
|
.band = NL80211_BAND_5GHZ, \ |
|
.center_freq = (_freq), \ |
|
.hw_value = (_idx), \ |
|
.max_power = 20, \ |
|
} |
|
|
|
/* Some 2 GHz radios are actually tunable on 2312-2732 |
|
* on 5 MHz steps, we support the channels which we know |
|
* we have calibration data for all cards though to make |
|
* this static */ |
|
static const struct ieee80211_channel ath9k_2ghz_chantable[] = { |
|
CHAN2G(2412, 0), /* Channel 1 */ |
|
CHAN2G(2417, 1), /* Channel 2 */ |
|
CHAN2G(2422, 2), /* Channel 3 */ |
|
CHAN2G(2427, 3), /* Channel 4 */ |
|
CHAN2G(2432, 4), /* Channel 5 */ |
|
CHAN2G(2437, 5), /* Channel 6 */ |
|
CHAN2G(2442, 6), /* Channel 7 */ |
|
CHAN2G(2447, 7), /* Channel 8 */ |
|
CHAN2G(2452, 8), /* Channel 9 */ |
|
CHAN2G(2457, 9), /* Channel 10 */ |
|
CHAN2G(2462, 10), /* Channel 11 */ |
|
CHAN2G(2467, 11), /* Channel 12 */ |
|
CHAN2G(2472, 12), /* Channel 13 */ |
|
CHAN2G(2484, 13), /* Channel 14 */ |
|
}; |
|
|
|
/* Some 5 GHz radios are actually tunable on XXXX-YYYY |
|
* on 5 MHz steps, we support the channels which we know |
|
* we have calibration data for all cards though to make |
|
* this static */ |
|
static const struct ieee80211_channel ath9k_5ghz_chantable[] = { |
|
/* _We_ call this UNII 1 */ |
|
CHAN5G(5180, 14), /* Channel 36 */ |
|
CHAN5G(5200, 15), /* Channel 40 */ |
|
CHAN5G(5220, 16), /* Channel 44 */ |
|
CHAN5G(5240, 17), /* Channel 48 */ |
|
/* _We_ call this UNII 2 */ |
|
CHAN5G(5260, 18), /* Channel 52 */ |
|
CHAN5G(5280, 19), /* Channel 56 */ |
|
CHAN5G(5300, 20), /* Channel 60 */ |
|
CHAN5G(5320, 21), /* Channel 64 */ |
|
/* _We_ call this "Middle band" */ |
|
CHAN5G(5500, 22), /* Channel 100 */ |
|
CHAN5G(5520, 23), /* Channel 104 */ |
|
CHAN5G(5540, 24), /* Channel 108 */ |
|
CHAN5G(5560, 25), /* Channel 112 */ |
|
CHAN5G(5580, 26), /* Channel 116 */ |
|
CHAN5G(5600, 27), /* Channel 120 */ |
|
CHAN5G(5620, 28), /* Channel 124 */ |
|
CHAN5G(5640, 29), /* Channel 128 */ |
|
CHAN5G(5660, 30), /* Channel 132 */ |
|
CHAN5G(5680, 31), /* Channel 136 */ |
|
CHAN5G(5700, 32), /* Channel 140 */ |
|
/* _We_ call this UNII 3 */ |
|
CHAN5G(5745, 33), /* Channel 149 */ |
|
CHAN5G(5765, 34), /* Channel 153 */ |
|
CHAN5G(5785, 35), /* Channel 157 */ |
|
CHAN5G(5805, 36), /* Channel 161 */ |
|
CHAN5G(5825, 37), /* Channel 165 */ |
|
}; |
|
|
|
/* Atheros hardware rate code addition for short preamble */ |
|
#define SHPCHECK(__hw_rate, __flags) \ |
|
((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0) |
|
|
|
#define RATE(_bitrate, _hw_rate, _flags) { \ |
|
.bitrate = (_bitrate), \ |
|
.flags = (_flags), \ |
|
.hw_value = (_hw_rate), \ |
|
.hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ |
|
} |
|
|
|
static struct ieee80211_rate ath9k_legacy_rates[] = { |
|
RATE(10, 0x1b, 0), |
|
RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(60, 0x0b, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(90, 0x0f, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(120, 0x0a, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(180, 0x0e, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(240, 0x09, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(360, 0x0d, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(480, 0x08, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
RATE(540, 0x0c, (IEEE80211_RATE_SUPPORTS_5MHZ | |
|
IEEE80211_RATE_SUPPORTS_10MHZ)), |
|
}; |
|
|
|
int ath9k_cmn_init_channels_rates(struct ath_common *common) |
|
{ |
|
struct ath_hw *ah = (struct ath_hw *)common->ah; |
|
void *channels; |
|
|
|
BUILD_BUG_ON(ARRAY_SIZE(ath9k_2ghz_chantable) + |
|
ARRAY_SIZE(ath9k_5ghz_chantable) != |
|
ATH9K_NUM_CHANNELS); |
|
|
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) { |
|
channels = devm_kzalloc(ah->dev, |
|
sizeof(ath9k_2ghz_chantable), GFP_KERNEL); |
|
if (!channels) |
|
return -ENOMEM; |
|
|
|
memcpy(channels, ath9k_2ghz_chantable, |
|
sizeof(ath9k_2ghz_chantable)); |
|
common->sbands[NL80211_BAND_2GHZ].channels = channels; |
|
common->sbands[NL80211_BAND_2GHZ].band = NL80211_BAND_2GHZ; |
|
common->sbands[NL80211_BAND_2GHZ].n_channels = |
|
ARRAY_SIZE(ath9k_2ghz_chantable); |
|
common->sbands[NL80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; |
|
common->sbands[NL80211_BAND_2GHZ].n_bitrates = |
|
ARRAY_SIZE(ath9k_legacy_rates); |
|
} |
|
|
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) { |
|
channels = devm_kzalloc(ah->dev, |
|
sizeof(ath9k_5ghz_chantable), GFP_KERNEL); |
|
if (!channels) |
|
return -ENOMEM; |
|
|
|
memcpy(channels, ath9k_5ghz_chantable, |
|
sizeof(ath9k_5ghz_chantable)); |
|
common->sbands[NL80211_BAND_5GHZ].channels = channels; |
|
common->sbands[NL80211_BAND_5GHZ].band = NL80211_BAND_5GHZ; |
|
common->sbands[NL80211_BAND_5GHZ].n_channels = |
|
ARRAY_SIZE(ath9k_5ghz_chantable); |
|
common->sbands[NL80211_BAND_5GHZ].bitrates = |
|
ath9k_legacy_rates + 4; |
|
common->sbands[NL80211_BAND_5GHZ].n_bitrates = |
|
ARRAY_SIZE(ath9k_legacy_rates) - 4; |
|
} |
|
return 0; |
|
} |
|
EXPORT_SYMBOL(ath9k_cmn_init_channels_rates); |
|
|
|
void ath9k_cmn_setup_ht_cap(struct ath_hw *ah, |
|
struct ieee80211_sta_ht_cap *ht_info) |
|
{ |
|
struct ath_common *common = ath9k_hw_common(ah); |
|
u8 tx_streams, rx_streams; |
|
int i, max_streams; |
|
|
|
ht_info->ht_supported = true; |
|
ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
|
IEEE80211_HT_CAP_SM_PS | |
|
IEEE80211_HT_CAP_SGI_40 | |
|
IEEE80211_HT_CAP_DSSSCCK40; |
|
|
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_LDPC) |
|
ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; |
|
|
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20) |
|
ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
|
|
|
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
|
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; |
|
|
|
if (AR_SREV_9271(ah) || AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) |
|
max_streams = 1; |
|
else if (AR_SREV_9462(ah)) |
|
max_streams = 2; |
|
else if (AR_SREV_9300_20_OR_LATER(ah)) |
|
max_streams = 3; |
|
else |
|
max_streams = 2; |
|
|
|
if (AR_SREV_9280_20_OR_LATER(ah)) { |
|
if (max_streams >= 2) |
|
ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; |
|
ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); |
|
} |
|
|
|
/* set up supported mcs set */ |
|
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
|
tx_streams = ath9k_cmn_count_streams(ah->txchainmask, max_streams); |
|
rx_streams = ath9k_cmn_count_streams(ah->rxchainmask, max_streams); |
|
|
|
ath_dbg(common, CONFIG, "TX streams %d, RX streams: %d\n", |
|
tx_streams, rx_streams); |
|
|
|
if (tx_streams != rx_streams) { |
|
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
|
ht_info->mcs.tx_params |= ((tx_streams - 1) << |
|
IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
|
} |
|
|
|
for (i = 0; i < rx_streams; i++) |
|
ht_info->mcs.rx_mask[i] = 0xff; |
|
|
|
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; |
|
} |
|
EXPORT_SYMBOL(ath9k_cmn_setup_ht_cap); |
|
|
|
void ath9k_cmn_reload_chainmask(struct ath_hw *ah) |
|
{ |
|
struct ath_common *common = ath9k_hw_common(ah); |
|
|
|
if (!(ah->caps.hw_caps & ATH9K_HW_CAP_HT)) |
|
return; |
|
|
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) |
|
ath9k_cmn_setup_ht_cap(ah, |
|
&common->sbands[NL80211_BAND_2GHZ].ht_cap); |
|
if (ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) |
|
ath9k_cmn_setup_ht_cap(ah, |
|
&common->sbands[NL80211_BAND_5GHZ].ht_cap); |
|
} |
|
EXPORT_SYMBOL(ath9k_cmn_reload_chainmask);
|
|
|