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wlan-ap-Telecominfraproject/feeds/ipq95xx/hostapd/patches/p00-002-mesh-enable-more-160MHz-channels-in-6GHz.patch
John Crispin b9b03a6e38 ipq95xx: add Qualcomm wifi-7 support 
Signed-off-by: John Crispin <john@phrozen.org>
2023-04-10 14:25:48 +02:00

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From d6e52c4ef2bb8e915cae088564c412583f1794c9 Mon Sep 17 00:00:00 2001
From: P Praneesh <quic_ppranees@quicinc.com>
Date: Fri, 21 Jan 2022 09:44:15 +0530
Subject: [PATCH] mesh: enable more 160MHz channels in 6GHz
Current 160MHz implementation supports mesh bringup in limited channels.
Allow all the 6GHz 80MHz channels to support 160MHz if the secondary 80MHz
is available.
Ex: User can bringup 160MHz in 49th channel (primary 80MHz) based on 33rd
channel(secondary 80MHz) availablity.
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
---
wpa_supplicant/wpa_supplicant.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
Index: hostapd-2021-12-13-b26f5c0f/hostapd/config_file.c
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/hostapd/config_file.c
+++ hostapd-2021-12-13-b26f5c0f/hostapd/config_file.c
@@ -4280,6 +4280,8 @@ static int hostapd_config_fill(struct ho
} else if (os_strcmp(buf, "wowlan_triggers") == 0) {
os_free(bss->wowlan_triggers);
bss->wowlan_triggers = os_strdup(pos);
+ } else if (os_strcmp(buf, "enable_160mhz_bw") == 0) {
+ conf->enable_160mhz_bw = atoi(pos);
} else if (os_strcmp(buf, "disable_40mhz_scan") == 0) {
conf->disable_40mhz_scan = atoi(pos);
#ifdef CONFIG_FST
Index: hostapd-2021-12-13-b26f5c0f/src/ap/ap_config.h
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/src/ap/ap_config.h
+++ hostapd-2021-12-13-b26f5c0f/src/ap/ap_config.h
@@ -1083,6 +1083,7 @@ struct hostapd_config {
} *acs_chan_bias;
unsigned int num_acs_chan_bias;
#endif /* CONFIG_ACS */
+ int enable_160mhz_bw;
int disable_40mhz_scan;
struct wpabuf *lci;
Index: hostapd-2021-12-13-b26f5c0f/src/drivers/driver.h
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/src/drivers/driver.h
+++ hostapd-2021-12-13-b26f5c0f/src/drivers/driver.h
@@ -1236,6 +1236,10 @@ struct wpa_driver_associate_params {
* 2 = BURST beacon tx mode
*/
int beacon_tx_mode;
+ /**
+ * Enable 160MHz BW - set it 1 to enable mesh 160MHz 6G
+ */
+ int enable_160mhz_bw;
};
enum hide_ssid {
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config.c
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/config.c
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config.c
@@ -2742,6 +2742,7 @@ static const struct parse_data ssid_fiel
{ INT_RANGE(sae_pk, 0, 2) },
{ INT_RANGE(disable_40mhz_scan, 0, 1)},
{ INT_RANGE(beacon_tx_mode, 1, 2)},
+ { INT_RANGE(enable_160mhz_bw, 0, 1)},
};
#undef OFFSET
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config_file.c
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/config_file.c
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config_file.c
@@ -890,6 +890,7 @@ static void wpa_config_write_network(FIL
#endif /* CONFIG_HE_OVERRIDES */
INT(disable_40mhz_scan);
INT(beacon_tx_mode);
+ INT(enable_160mhz_bw);
#undef STR
#undef INT
#undef INT_DEF
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config_ssid.h
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/config_ssid.h
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/config_ssid.h
@@ -1208,6 +1208,11 @@ struct wpa_ssid {
* 2 = BURST MODE
*/
int beacon_tx_mode;
+
+ /**
+ * Enable 160MHz BW - set it 1 to enable mesh 160MHz 6G
+ */
+ int enable_160mhz_bw;
};
#endif /* CONFIG_SSID_H */
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_cli.c
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/wpa_cli.c
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_cli.c
@@ -1491,6 +1491,7 @@ static const char *network_fields[] = {
"mac_addr", "pbss", "wps_disabled",
"disable_40mhz_scan",
"beacon_tx_mode",
+ "enable_160mhz_bw",
};
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_supplicant.conf
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/wpa_supplicant.conf
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_supplicant.conf
@@ -1699,6 +1699,11 @@ fast_reauth=1
# In STA mode it defines the EDMG channel for connection (if supported by AP).
#edmg_channel=9
+#To configure 80MHz and 160MHz in Mesh mode.
+#Set 0 to enable 80MHz in Mesh mode
+#Set 1 to enable 160MHz in Mesh mode
+#enable_160mhz_bw=1
+
# Example blocks:
# Simple case: WPA-PSK, PSK as an ASCII passphrase, allow all valid ciphers
Index: hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_supplicant.c
===================================================================
--- hostapd-2021-12-13-b26f5c0f.orig/wpa_supplicant/wpa_supplicant.c
+++ hostapd-2021-12-13-b26f5c0f/wpa_supplicant/wpa_supplicant.c
@@ -2541,12 +2541,20 @@ void ibss_mesh_setup_freq(struct wpa_sup
struct hostapd_hw_modes *mode = NULL;
int ht40plus[] = { 1, 2, 3, 4, 5, 6, 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
165, 173, 184, 192 };
- int bw80[] = { 5180, 5260, 5500, 5580, 5660, 5745, 5825, 5955,
- 6035, 6115, 6195, 6275, 6355, 6435, 6515,
- 6595, 6675, 6755, 6835, 6915, 6995 };
- int bw160[] = { 5745, 5955, 6115, 6275, 6435, 6595, 6755, 6915 };
+ /* bw_80_160 array members are 80MHz start freq, 80MHz end freq and so on
+ */
+ unsigned int bw_80_160[] = { 5180, 5240, 5260, 5320,
+ 5500, 5560, 5580, 5660,
+ 5745, 5805, 5825, 5885,
+ 5955, 6015, 6035, 6095,
+ 6115, 6175, 6195, 6255,
+ 6275, 6335, 6355, 6415,
+ 6435, 6495, 6515, 6575,
+ 6595, 6655, 6675, 6735,
+ 6755, 6815, 6835, 6895,
+ 6915, 6975, 6995, 7055 };
struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
- u8 channel;
+ u8 channel, chan_80mhz;
int i, chan_idx, ht40 = -1, res, obss_scan = !(ssid->noscan);
unsigned int j, k;
struct hostapd_freq_params vht_freq;
@@ -2769,60 +2777,79 @@ skip_to_6ghz:
return;
/* Enable HE with VHT for 5 GHz */
- freq->he_enabled = mode->he_capab[ieee80211_mode].he_supported;
+ vht_freq.he_enabled = mode->he_capab[ieee80211_mode].he_supported;
#ifdef CONFIG_HE_OVERRIDES
if (is_24ghz)
goto skip_vht80;
#endif /* CONFIG_HE_OVERRIDES */
- /* setup center_freq1, bandwidth */
- for (j = 0; j < ARRAY_SIZE(bw80); j++) {
- if (freq->freq >= bw80[j] &&
- freq->freq < bw80[j] + 80)
+ for (j = 0; j < ARRAY_SIZE(bw_80_160); j+=2) {
+ /* If the config provided freq available between any of two indices
+ * get the starting range of the channel to check chan availability
+ */
+ if (freq->freq >= bw_80_160[j] && freq->freq <= bw_80_160[j+1]) {
+ ieee80211_freq_to_chan(bw_80_160[j], &chan_80mhz);
+ seg0 = chan_80mhz + 6;
break;
+ }
}
- if (j == ARRAY_SIZE(bw80) ||
- ieee80211_freq_to_chan(bw80[j], &channel) == NUM_HOSTAPD_MODES)
+ if (j == ARRAY_SIZE(bw_80_160))
return;
/* Back to HT configuration if channel not usable */
- if (!ibss_mesh_is_80mhz_avail(channel, mode))
+ if (!ibss_mesh_is_80mhz_avail(chan_80mhz, mode))
return;
chwidth = CHANWIDTH_80MHZ;
- seg0 = channel + 6;
seg1 = 0;
if ((mode->he_capab[ieee80211_mode].phy_cap[
HE_PHYCAP_CHANNEL_WIDTH_SET_IDX] &
- HE_PHYCAP_CHANNEL_WIDTH_SET_160MHZ_IN_5G)) {
- /* In 160 MHz, the initial four 20 MHz channels were validated
- * above; check the remaining four 20 MHz channels for the total
- * of 160 MHz bandwidth.
- */
- if (!ibss_mesh_is_80mhz_avail(channel + 16, mode))
- break;
-
- for (j = 0; j < ARRAY_SIZE(bw160); j++) {
- if (freq->freq == bw160[j]) {
- chwidth = CHANWIDTH_160MHZ;
- seg0 = channel + 14;
+ HE_PHYCAP_CHANNEL_WIDTH_SET_160MHZ_IN_5G) && (ssid->enable_160mhz_bw)) {
+ chan_80mhz = freq->channel + 16;
+ for (j = 0; j < ARRAY_SIZE(bw_80_160); j+=2) {
+ if (freq->freq >= bw_80_160[j] && freq->freq <= bw_80_160[j+1]) {
+ if (j % 4 == 0) {
+ ieee80211_freq_to_chan(bw_80_160[j],
+ &chan_80mhz);
+ seg0 = chan_80mhz + 14;
+
+ /* Get secondary 80MHz channel using freq by
+ * adding 16*5 ie., 80MHz.
+ */
+ ieee80211_freq_to_chan((bw_80_160[j] + 16*5),
+ &chan_80mhz);
+ } else {
+ ieee80211_freq_to_chan(bw_80_160[j],
+ &chan_80mhz);
+ seg0 = chan_80mhz - 2;
+ /* Get secondary 80MHz channel using freq by
+ * subtracting 16*5 ie., 80MHz.
+ */
+ ieee80211_freq_to_chan((bw_80_160[j] - 16*5),
+ &chan_80mhz);
+ }
+
+ if (!ibss_mesh_is_80mhz_avail(chan_80mhz, mode))
+ seg0 = freq->channel + 6;
+ else
+ chwidth = CHANWIDTH_160MHZ;
break;
- }
- }
- }
+ }
+ }
+ }
if (ssid->max_oper_chwidth == CHANWIDTH_80P80MHZ) {
/* setup center_freq2, bandwidth */
- for (k = 0; k < ARRAY_SIZE(bw80); k++) {
+ for (k = 0; k < ARRAY_SIZE(bw_80_160); k++) {
/* Only accept 80 MHz segments separated by a gap */
- if (j == k || abs(bw80[j] - bw80[k]) == 80)
+ if (j == k || abs(bw_80_160[j] - bw_80_160[k]) == 80)
continue;
- if (ieee80211_freq_to_chan(bw80[k], &channel) ==
- NUM_HOSTAPD_MODES)
+ if (ieee80211_freq_to_chan(bw_80_160[k],
+ &channel) == NUM_HOSTAPD_MODES)
return;
for (i = channel; i < channel + 16; i += 4) {
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