On 2010-11-10 1:23 PM, Vivek Natarajan wrote:
> Enable beamforming if the driver and the AP are capable of sending
> and receiving beam-formed frames.
>
> Signed-off-by: Vivek Natarajan <vnatarajan@xxxxxxxxxxx>
> ---
> include/linux/ieee80211.h | 41 ++++++++++++++++++++++++++++++++++++++++-
> include/net/cfg80211.h | 6 ++++++
> include/net/mac80211.h | 9 +++++++--
> net/mac80211/cfg.c | 7 +++++++
> net/mac80211/ht.c | 18 ++++++++++++++++++
> net/mac80211/ieee80211_i.h | 1 +
> net/mac80211/mlme.c | 19 +++++++++++++++++++
> net/mac80211/rx.c | 10 ++++++++++
> net/mac80211/sta_info.c | 2 ++
> net/mac80211/sta_info.h | 6 ++++++
> net/mac80211/status.c | 19 +++++++++++++++++++
> net/mac80211/tx.c | 27 ++++++++++++++++++++++++---
> net/mac80211/work.c | 1 +
> 13 files changed, 160 insertions(+), 6 deletions(-)
>
> diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
> index ed5a03c..ba92b73 100644
> --- a/include/linux/ieee80211.h
> +++ b/include/linux/ieee80211.h
[...]
> /**
> * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
> * @fc: frame control bytes in little-endian byteorder
> @@ -827,6 +843,29 @@ struct ieee80211_mcs_info {
> u8 reserved[3];
> } __attribute__((packed));
>
> +struct ieee80211_txbf_caps {
> + u32 implicit_rx_capable:1,
> + rx_staggered_sounding:1,
> + tx_staggered_sounding:1,
> + rx_ndp_capable:1,
> + tx_ndp_capable:1,
> + implicit_txbf_capable:1,
> + calibration:2,
> + explicit_csi_txbf_capable:1,
> + explicit_noncomp_steering:1,
> + explicit_comp_steering:1,
> + explicit_csi_feedback:2,
> + explicit_noncomp_bf:2,
> + explicit_comp_bf:2,
> + minimal_grouping:2,
> + csi_bfer_antennas:2,
> + noncomp_bfer_antennas:2,
> + comp_bfer_antennas:2,
> + csi_max_rows_bfer:2,
> + channel_estimation_cap:2,
> + reserved:3;
> +};
> +
> /* 802.11n HT capability MSC set */
> #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
> #define IEEE80211_HT_MCS_TX_DEFINED 0x01
> @@ -862,7 +901,7 @@ struct ieee80211_ht_cap {
> struct ieee80211_mcs_info mcs;
>
> __le16 extended_ht_cap_info;
> - __le32 tx_BF_cap_info;
> + struct ieee80211_txbf_caps tx_BF_cap_info;
> u8 antenna_selection_info;
> } __attribute__ ((packed));
What about big endian? I think it's better to just use defines with the
proper masks - bitfields make handling endian differences harder.
- Felix
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