recipes-wifi/iw/patches-mlo/0008-util-add-support-for-320MHz-bandwidth-without-cf1.patch

From 997e5f13e7bc2267b28e541a2904d7f7d84227d0 Mon Sep 17 00:00:00 2001
From: Mordechay Goodstein <mordechay.goodstein@intel.com>
Date: Sun, 29 May 2022 19:29:55 +0300
Subject: [PATCH 08/28] util: add support for 320MHz bandwidth without cf1

Based on user input for control central freq and 320 BW find the data
central freq (cf1).

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 phy.c  |  4 ++--
 util.c | 16 +++++++++++++++-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/phy.c b/phy.c
index 0a57ecb..15cea32 100644
--- a/phy.c
+++ b/phy.c
@@ -199,13 +199,13 @@ static int handle_freq(struct nl80211_state *state, struct nl_msg *msg,
 }
 
 COMMAND(set, freq,
-	"<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz]\n"
+	"<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz]\n"
 	"<control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]",
 	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_freq,
 	"Set frequency/channel the hardware is using, including HT\n"
 	"configuration.");
 COMMAND(set, freq,
-	"<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz]\n"
+	"<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz]\n"
 	"<control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]",
 	NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_freq, NULL);
 
diff --git a/util.c b/util.c
index 93269ab..80dc301 100644
--- a/util.c
+++ b/util.c
@@ -583,7 +583,7 @@ static int parse_freqs(struct chandef *chandef, int argc, char **argv,
  *   <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz]
  *
  * And if frequency is set:
- *   <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz]
+ *   <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz]
  *   <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]
  *
  * If the mode/channel width is not given the NOHT is assumed.
@@ -1696,6 +1696,8 @@ int get_cf1(const struct chanmode *chanmode, unsigned long freq)
 				6195, 6995 };
 	unsigned int bw160[] = { 5180, 5500, 5955, 6115, 6275, 6435,
 				  6595, 6755, 6915 };
+	/* based on 11be D2 E.1 Country information and operating classes */
+	unsigned int bw320[] = {5955, 6115, 6275, 6435, 6595, 6755};
 
 	switch (chanmode->width) {
 	case NL80211_CHAN_WIDTH_80:
@@ -1722,6 +1724,18 @@ int get_cf1(const struct chanmode *chanmode, unsigned long freq)
 
 		cf1 = bw160[j] + 70;
 		break;
+	case NL80211_CHAN_WIDTH_320:
+		/* setup center_freq1 */
+		for (j = 0; j < ARRAY_SIZE(bw320); j++) {
+			if (freq >= bw320[j] && freq < bw320[j] + 160)
+				break;
+		}
+
+		if (j == ARRAY_SIZE(bw320))
+			break;
+
+		cf1 = bw320[j] + 150;
+		break;
 	default:
 		cf1 = freq + chanmode->freq1_diff;
 		break;
-- 
2.39.2