hostapd: Extend the sounding and BF steering capabilities

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>

hostapd/config_file.c

@@ -1160,9 +1160,21 @@ static int hostapd_config_vht_capab(struct hostapd_config *conf,
 	if (os_strstr(capab, "[BF-ANTENNA-2]") &&
 	    (conf->vht_capab & VHT_CAP_SU_BEAMFORMEE_CAPABLE))
 		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]") &&
 	    (conf->vht_capab & VHT_CAP_SU_BEAMFORMER_CAPABLE))
 		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]"))
 		conf->vht_capab |= VHT_CAP_MU_BEAMFORMER_CAPABLE;
 	if (os_strstr(capab, "[VHT-TXOP-PS]"))

hostapd/hostapd.conf

@@ -582,14 +582,16 @@ wmm_ac_vo_acm=0
 # 0 = Not supported (default)
 # 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
 #   antennas the beamformee can support when sending compressed beamforming
 #   feedback
 # If SU beamformer capable, set to maximum value minus 1
 # 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
 # in the TXVECTOR of a VHT NDP
 # If SU beamformer capable, set to maximum value minus 1