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hostapd: Extend the sounding and BF steering capabilities

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Depending on the number of antennas, the txbf sounding
and steering capabilites need to be extended.

Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
This commit is contained in:
Vivek Natarajan 2015-07-15 17:28:22 +05:30 committed by Jouni Malinen
parent 087632168b
commit 442ffc51ac
2 changed files with 16 additions and 2 deletions
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12
hostapd/config_file.c
View file

@ -1160,9 +1160,21 @@ static int hostapd_config_vht_capab(struct hostapd_config *conf,
if (os_strstr(capab, "[BF-ANTENNA-2]") && if (os_strstr(capab, "[BF-ANTENNA-2]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMEE_CAPABLE)) (conf->vht_capab & VHT_CAP_SU_BEAMFORMEE_CAPABLE))
conf->vht_capab |= (1 << VHT_CAP_BEAMFORMEE_STS_OFFSET); conf->vht_capab |= (1 << VHT_CAP_BEAMFORMEE_STS_OFFSET);
if (os_strstr(capab, "[BF-ANTENNA-3]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMEE_CAPABLE))
conf->vht_capab |= (2 << VHT_CAP_BEAMFORMEE_STS_OFFSET);
if (os_strstr(capab, "[BF-ANTENNA-4]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMEE_CAPABLE))
conf->vht_capab |= (3 << VHT_CAP_BEAMFORMEE_STS_OFFSET);
if (os_strstr(capab, "[SOUNDING-DIMENSION-2]") && if (os_strstr(capab, "[SOUNDING-DIMENSION-2]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMER_CAPABLE)) (conf->vht_capab & VHT_CAP_SU_BEAMFORMER_CAPABLE))
conf->vht_capab |= (1 << VHT_CAP_SOUNDING_DIMENSION_OFFSET); conf->vht_capab |= (1 << VHT_CAP_SOUNDING_DIMENSION_OFFSET);
if (os_strstr(capab, "[SOUNDING-DIMENSION-3]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMER_CAPABLE))
conf->vht_capab |= (2 << VHT_CAP_SOUNDING_DIMENSION_OFFSET);
if (os_strstr(capab, "[SOUNDING-DIMENSION-4]") &&
(conf->vht_capab & VHT_CAP_SU_BEAMFORMER_CAPABLE))
conf->vht_capab |= (3 << VHT_CAP_SOUNDING_DIMENSION_OFFSET);
if (os_strstr(capab, "[MU-BEAMFORMER]")) if (os_strstr(capab, "[MU-BEAMFORMER]"))
conf->vht_capab |= VHT_CAP_MU_BEAMFORMER_CAPABLE; conf->vht_capab |= VHT_CAP_MU_BEAMFORMER_CAPABLE;
if (os_strstr(capab, "[VHT-TXOP-PS]")) if (os_strstr(capab, "[VHT-TXOP-PS]"))

6
hostapd/hostapd.conf
View file

@ -582,14 +582,16 @@ wmm_ac_vo_acm=0
# 0 = Not supported (default) # 0 = Not supported (default)
# 1 = Supported # 1 = Supported
# #
# Compressed Steering Number of Beamformer Antennas Supported: [BF-ANTENNA-2] # Compressed Steering Number of Beamformer Antennas Supported:
# [BF-ANTENNA-2] [BF-ANTENNA-3] [BF-ANTENNA-4]
# Beamformee's capability indicating the maximum number of beamformer # Beamformee's capability indicating the maximum number of beamformer
# antennas the beamformee can support when sending compressed beamforming # antennas the beamformee can support when sending compressed beamforming
# feedback # feedback
# If SU beamformer capable, set to maximum value minus 1 # If SU beamformer capable, set to maximum value minus 1
# else reserved (default) # else reserved (default)
# #
# Number of Sounding Dimensions: [SOUNDING-DIMENSION-2] # Number of Sounding Dimensions:
# [SOUNDING-DIMENSION-2] [SOUNDING-DIMENSION-3] [SOUNDING-DIMENSION-4]
# Beamformer's capability indicating the maximum value of the NUM_STS parameter # Beamformer's capability indicating the maximum value of the NUM_STS parameter
# in the TXVECTOR of a VHT NDP # in the TXVECTOR of a VHT NDP
# If SU beamformer capable, set to maximum value minus 1 # If SU beamformer capable, set to maximum value minus 1