diff --git a/drivers/net/wireless/wl12xx/Kconfig b/drivers/net/wireless/wl12xx/Kconfig index b447559f1db5..1b3b7bdd6a19 100644 --- a/drivers/net/wireless/wl12xx/Kconfig +++ b/drivers/net/wireless/wl12xx/Kconfig @@ -18,6 +18,16 @@ config WL1271 If you choose to build a module, it'll be called wl1271. Say N if unsure. +config WL1271_HT + bool "TI wl1271 802.11 HT support (EXPERIMENTAL)" + depends on WL1271 && EXPERIMENTAL + default n + ---help--- + This will enable 802.11 HT support for TI wl1271 chipset. + + That configuration is temporary due to the code incomplete and + still in testing process. + config WL1271_SPI tristate "TI wl1271 SPI support" depends on WL1271 && SPI_MASTER diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c index 5d5f4c6a9644..532ccd01cf6f 100644 --- a/drivers/net/wireless/wl12xx/wl1271_main.c +++ b/drivers/net/wireless/wl12xx/wl1271_main.c @@ -861,12 +861,32 @@ static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) struct ieee80211_sta *sta = txinfo->control.sta; unsigned long flags; - /* peek into the rates configured in the STA entry */ + /* + * peek into the rates configured in the STA entry. + * The rates set after connection stage, The first block only BG sets: + * the compare is for bit 0-16 of sta_rate_set. The second block add + * HT rates in case of HT supported. + */ spin_lock_irqsave(&wl->wl_lock, flags); - if (sta && sta->supp_rates[conf->channel->band] != wl->sta_rate_set) { + if (sta && + (sta->supp_rates[conf->channel->band] != + (wl->sta_rate_set & HW_BG_RATES_MASK))) { wl->sta_rate_set = sta->supp_rates[conf->channel->band]; set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags); } + +#ifdef CONFIG_WL1271_HT + if (sta && + sta->ht_cap.ht_supported && + ((wl->sta_rate_set >> HW_HT_RATES_OFFSET) != + sta->ht_cap.mcs.rx_mask[0])) { + /* Clean MCS bits before setting them */ + wl->sta_rate_set &= HW_BG_RATES_MASK; + wl->sta_rate_set |= + (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET); + set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags); + } +#endif spin_unlock_irqrestore(&wl->wl_lock, flags); /* queue the packet */ @@ -1720,6 +1740,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, { enum wl1271_cmd_ps_mode mode; struct wl1271 *wl = hw->priv; + struct ieee80211_sta *sta = ieee80211_find_sta(vif, bss_conf->bssid); bool do_join = false; bool set_assoc = false; int ret; @@ -1938,6 +1959,37 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, } } + /* + * Takes care of: New association with HT enable, + * HT information change in beacon. + */ + if (sta && + (changed & BSS_CHANGED_HT) && + (bss_conf->channel_type != NL80211_CHAN_NO_HT)) { + ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true); + if (ret < 0) { + wl1271_warning("Set ht cap true failed %d", ret); + goto out_sleep; + } + ret = wl1271_acx_set_ht_information(wl, + bss_conf->ht_operation_mode); + if (ret < 0) { + wl1271_warning("Set ht information failed %d", ret); + goto out_sleep; + } + } + /* + * Takes care of: New association without HT, + * Disassociation. + */ + else if (sta && (changed & BSS_CHANGED_ASSOC)) { + ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, false); + if (ret < 0) { + wl1271_warning("Set ht cap false failed %d", ret); + goto out_sleep; + } + } + if (changed & BSS_CHANGED_ARP_FILTER) { __be32 addr = bss_conf->arp_addr_list[0]; WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS); @@ -2118,14 +2170,14 @@ static struct ieee80211_channel wl1271_channels[] = { /* mapping to indexes for wl1271_rates */ static const u8 wl1271_rate_to_idx_2ghz[] = { /* MCS rates are used only with 11n */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */ + 7, /* CONF_HW_RXTX_RATE_MCS7 */ + 6, /* CONF_HW_RXTX_RATE_MCS6 */ + 5, /* CONF_HW_RXTX_RATE_MCS5 */ + 4, /* CONF_HW_RXTX_RATE_MCS4 */ + 3, /* CONF_HW_RXTX_RATE_MCS3 */ + 2, /* CONF_HW_RXTX_RATE_MCS2 */ + 1, /* CONF_HW_RXTX_RATE_MCS1 */ + 0, /* CONF_HW_RXTX_RATE_MCS0 */ 11, /* CONF_HW_RXTX_RATE_54 */ 10, /* CONF_HW_RXTX_RATE_48 */ @@ -2148,6 +2200,7 @@ static const u8 wl1271_rate_to_idx_2ghz[] = { /* 11n STA capabilities */ #define HW_RX_HIGHEST_RATE 72 +#ifdef CONFIG_WL1271_HT #define WL1271_HT_CAP { \ .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20, \ .ht_supported = true, \ @@ -2159,6 +2212,11 @@ static const u8 wl1271_rate_to_idx_2ghz[] = { .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \ }, \ } +#else +#define WL1271_HT_CAP { \ + .ht_supported = false, \ +} +#endif /* can't be const, mac80211 writes to this */ static struct ieee80211_supported_band wl1271_band_2ghz = { @@ -2166,6 +2224,7 @@ static struct ieee80211_supported_band wl1271_band_2ghz = { .n_channels = ARRAY_SIZE(wl1271_channels), .bitrates = wl1271_rates, .n_bitrates = ARRAY_SIZE(wl1271_rates), + .ht_cap = WL1271_HT_CAP, }; /* 5 GHz data rates for WL1273 */ @@ -2248,14 +2307,14 @@ static struct ieee80211_channel wl1271_channels_5ghz[] = { /* mapping to indexes for wl1271_rates_5ghz */ static const u8 wl1271_rate_to_idx_5ghz[] = { /* MCS rates are used only with 11n */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */ - CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS0 */ + 7, /* CONF_HW_RXTX_RATE_MCS7 */ + 6, /* CONF_HW_RXTX_RATE_MCS6 */ + 5, /* CONF_HW_RXTX_RATE_MCS5 */ + 4, /* CONF_HW_RXTX_RATE_MCS4 */ + 3, /* CONF_HW_RXTX_RATE_MCS3 */ + 2, /* CONF_HW_RXTX_RATE_MCS2 */ + 1, /* CONF_HW_RXTX_RATE_MCS1 */ + 0, /* CONF_HW_RXTX_RATE_MCS0 */ 7, /* CONF_HW_RXTX_RATE_54 */ 6, /* CONF_HW_RXTX_RATE_48 */ @@ -2280,6 +2339,7 @@ static struct ieee80211_supported_band wl1271_band_5ghz = { .n_channels = ARRAY_SIZE(wl1271_channels_5ghz), .bitrates = wl1271_rates_5ghz, .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz), + .ht_cap = WL1271_HT_CAP, }; static const u8 *wl1271_band_rate_to_idx[] = { diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.c b/drivers/net/wireless/wl12xx/wl1271_rx.c index bea133b6e489..ac13f7d25219 100644 --- a/drivers/net/wireless/wl12xx/wl1271_rx.c +++ b/drivers/net/wireless/wl12xx/wl1271_rx.c @@ -53,6 +53,12 @@ static void wl1271_rx_status(struct wl1271 *wl, status->band = wl->band; status->rate_idx = wl1271_rate_to_idx(wl, desc->rate); +#ifdef CONFIG_WL1271_HT + /* 11n support */ + if (desc->rate <= CONF_HW_RXTX_RATE_MCS0) + status->flag |= RX_FLAG_HT; +#endif + status->signal = desc->rssi; /* diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c index dc3172bea0dd..87a5aed00c8c 100644 --- a/drivers/net/wireless/wl12xx/wl1271_tx.c +++ b/drivers/net/wireless/wl12xx/wl1271_tx.c @@ -209,6 +209,17 @@ u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set) rate_set >>= 1; } +#ifdef CONFIG_WL1271_HT + /* MCS rates indication are on bits 16 - 23 */ + rate_set >>= HW_HT_RATES_OFFSET - band->n_bitrates; + + for (bit = 0; bit < 8; bit++) { + if (rate_set & 0x1) + enabled_rates |= (CONF_HW_BIT_RATE_MCS_0 << bit); + rate_set >>= 1; + } +#endif + return enabled_rates; }