/* * 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 premble */ #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);