From 341c97918ab7e84a155ea8b18759425304d213b6 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 4 Jan 2010 21:58:40 +0100 Subject: [PATCH] mwl8k: pass GET_HW_SPEC capability bitmask up the stack This enables HT association and AMPDU in the receive direction for STA firmware images on hardware that supports it. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 64 ++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 57ced0db910..23a5a344262 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1578,6 +1578,68 @@ struct mwl8k_cmd_get_hw_spec_sta { __le32 total_rxd; } __attribute__((packed)); +#define MWL8K_CAP_MAX_AMSDU 0x20000000 +#define MWL8K_CAP_GREENFIELD 0x08000000 +#define MWL8K_CAP_AMPDU 0x04000000 +#define MWL8K_CAP_RX_STBC 0x01000000 +#define MWL8K_CAP_TX_STBC 0x00800000 +#define MWL8K_CAP_SHORTGI_40MHZ 0x00400000 +#define MWL8K_CAP_SHORTGI_20MHZ 0x00200000 +#define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000 +#define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000 +#define MWL8K_CAP_DELAY_BA 0x00003000 +#define MWL8K_CAP_MIMO 0x00000200 +#define MWL8K_CAP_40MHZ 0x00000100 + +static void mwl8k_set_ht_caps(struct ieee80211_hw *hw, u32 cap) +{ + struct mwl8k_priv *priv = hw->priv; + int rx_streams; + int tx_streams; + + priv->band.ht_cap.ht_supported = 1; + + if (cap & MWL8K_CAP_MAX_AMSDU) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU; + if (cap & MWL8K_CAP_GREENFIELD) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD; + if (cap & MWL8K_CAP_AMPDU) { + hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION; + priv->band.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; + priv->band.ht_cap.ampdu_density = + IEEE80211_HT_MPDU_DENSITY_NONE; + } + if (cap & MWL8K_CAP_RX_STBC) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC; + if (cap & MWL8K_CAP_TX_STBC) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC; + if (cap & MWL8K_CAP_SHORTGI_40MHZ) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; + if (cap & MWL8K_CAP_SHORTGI_20MHZ) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; + if (cap & MWL8K_CAP_DELAY_BA) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA; + if (cap & MWL8K_CAP_40MHZ) + priv->band.ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; + + rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK); + tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK); + + priv->band.ht_cap.mcs.rx_mask[0] = 0xff; + if (rx_streams >= 2) + priv->band.ht_cap.mcs.rx_mask[1] = 0xff; + if (rx_streams >= 3) + priv->band.ht_cap.mcs.rx_mask[2] = 0xff; + priv->band.ht_cap.mcs.rx_mask[4] = 0x01; + priv->band.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; + + if (rx_streams != tx_streams) { + priv->band.ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; + priv->band.ht_cap.mcs.tx_params |= (tx_streams - 1) << + IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; + } +} + static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw) { struct mwl8k_priv *priv = hw->priv; @@ -1608,6 +1670,8 @@ static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw) priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); priv->fw_rev = le32_to_cpu(cmd->fw_rev); priv->hw_rev = cmd->hw_rev; + if (cmd->caps & cpu_to_le32(MWL8K_CAP_MIMO)) + mwl8k_set_ht_caps(hw, le32_to_cpu(cmd->caps)); } kfree(cmd); -- 2.46.0