hostapd: Enable HE for channel switch commmand

Add HE as an accepted option ("he") in the CHAN_SWITCH command similarly
to the way VHT is addressed.

Signed-off-by: Muna Sinada <msinada@codeaurora.org>

src/ap/ap_config.h

@@ -1049,6 +1049,11 @@ struct hostapd_config {
 #define CH_SWITCH_VHT_DISABLED BIT(1)
 	unsigned int ch_switch_vht_config;
 
+	/* HE enable/disable config from CHAN_SWITCH */
+#define CH_SWITCH_HE_ENABLED BIT(0)
+#define CH_SWITCH_HE_DISABLED BIT(1)
+	unsigned int ch_switch_he_config;
+
 	int rssi_reject_assoc_rssi;
 	int rssi_reject_assoc_timeout;
 	int rssi_ignore_probe_request;

src/ap/ctrl_iface_ap.c

@@ -909,6 +909,7 @@ int hostapd_parse_csa_settings(const char *pos,
 	SET_CSA_SETTING(sec_channel_offset);
 	settings->freq_params.ht_enabled = !!os_strstr(pos, " ht");
 	settings->freq_params.vht_enabled = !!os_strstr(pos, " vht");
+	settings->freq_params.he_enabled = !!os_strstr(pos, " he");
 	settings->block_tx = !!os_strstr(pos, " blocktx");
 #undef SET_CSA_SETTING
 

src/ap/drv_callbacks.c

@@ -870,9 +870,10 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 
 	hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 		       HOSTAPD_LEVEL_INFO,
-		       "driver %s channel switch: freq=%d, ht=%d, vht_ch=0x%x, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
+		       "driver %s channel switch: freq=%d, ht=%d, vht_ch=0x%x, he_ch=0x%x, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
 		       finished ? "had" : "starting",
-		       freq, ht, hapd->iconf->ch_switch_vht_config, offset,
+		       freq, ht, hapd->iconf->ch_switch_vht_config,
+		       hapd->iconf->ch_switch_he_config, offset,
 		       width, channel_width_to_string(width), cf1, cf2);
 
 	if (!hapd->iface->current_mode) {
@@ -944,8 +945,17 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 		else if (hapd->iconf->ch_switch_vht_config &
 			 CH_SWITCH_VHT_DISABLED)
 			hapd->iconf->ieee80211ac = 0;
+	} else if (hapd->iconf->ch_switch_he_config) {
+		/* CHAN_SWITCH HE config */
+		if (hapd->iconf->ch_switch_he_config &
+		    CH_SWITCH_HE_ENABLED)
+			hapd->iconf->ieee80211ax = 1;
+		else if (hapd->iconf->ch_switch_he_config &
+			 CH_SWITCH_HE_DISABLED)
+			hapd->iconf->ieee80211ax = 0;
 	}
 	hapd->iconf->ch_switch_vht_config = 0;
+	hapd->iconf->ch_switch_he_config = 0;
 
 	hapd->iconf->secondary_channel = offset;
 	hostapd_set_oper_chwidth(hapd->iconf, chwidth);