diff --git a/drivers/net/wireless/wl12xx/Kconfig b/drivers/net/wireless/wl12xx/Kconfig
index b447559f1db52dbf2780afff4ca3454fbecf6dbd..1b3b7bdd6a192df3db47b31b1fced0344bb5ede7 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 5d5f4c6a964429a7a0d446ce716eab87b0485b3d..532ccd01cf6f0af918a02a825e692a499d48c936 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 bea133b6e4893e2d61cbeff1e4d1f31d1faa42c4..ac13f7d252198f2ee9542ac866260257ee83885a 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 dc3172bea0ddd224fe6fb0ccd68e62fe7291e707..87a5aed00c8c18f11efcf3fba68861f24db36f53 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;
}