[][MAC80211][WiFi6][mt76][Add background radar hw cap checking mechanism]
[Description]
Add background radar hw cap checking mechanism
[Release-log]
N/A
Change-Id: Idf5243ec19f8889b9607a4100fb10d9f9d844687
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8740521
diff --git a/autobuild_mac80211_release/package/kernel/mt76/patches/1052-wifi-mt76-mt7915-add-background-radar-hw-cap-check.patch b/autobuild_mac80211_release/package/kernel/mt76/patches/1052-wifi-mt76-mt7915-add-background-radar-hw-cap-check.patch
new file mode 100644
index 0000000..d24abe0
--- /dev/null
+++ b/autobuild_mac80211_release/package/kernel/mt76/patches/1052-wifi-mt76-mt7915-add-background-radar-hw-cap-check.patch
@@ -0,0 +1,97 @@
+From 775d8a30a7e0564ce77cc8a048045212d667e059 Mon Sep 17 00:00:00 2001
+From: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+Date: Mon, 4 Mar 2024 11:29:06 +0800
+Subject: [PATCH] wifi: mt76: mt7915: add background radar hw cap check
+
+Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
+---
+ mt7915/debugfs.c | 5 +++++
+ mt7915/eeprom.h | 30 ++++++++++++++++++++++++++++++
+ mt7915/init.c | 7 ++++---
+ 3 files changed, 39 insertions(+), 3 deletions(-)
+
+diff --git a/mt7915/debugfs.c b/mt7915/debugfs.c
+index 017d43d..599a794 100644
+--- a/mt7915/debugfs.c
++++ b/mt7915/debugfs.c
+@@ -459,6 +459,11 @@ mt7915_rdd_monitor(struct seq_file *s, void *data)
+
+ mutex_lock(&dev->mt76.mutex);
+
++ if (!mt7915_get_background_radar_cap(dev)) {
++ seq_puts(s, "no background radar capability\n");
++ goto out;
++ }
++
+ if (!cfg80211_chandef_valid(chandef)) {
+ ret = -EINVAL;
+ goto out;
+diff --git a/mt7915/eeprom.h b/mt7915/eeprom.h
+index 70fca0b..adeee10 100644
+--- a/mt7915/eeprom.h
++++ b/mt7915/eeprom.h
+@@ -55,6 +55,7 @@ enum mt7915_eeprom_field {
+ #define MT_EE_CAL_DPD_SIZE_V2_7981 (102 * MT_EE_CAL_UNIT) /* no 6g dpd data */
+
+ #define MT_EE_WIFI_CONF0_TX_PATH GENMASK(2, 0)
++#define MT_EE_WIFI_CONF0_RX_PATH GENMASK(5, 3)
+ #define MT_EE_WIFI_CONF0_BAND_SEL GENMASK(7, 6)
+ #define MT_EE_WIFI_CONF1_BAND_SEL GENMASK(7, 6)
+ #define MT_EE_WIFI_CONF_STREAM_NUM GENMASK(7, 5)
+@@ -206,6 +207,35 @@ mt7915_get_cal_dpd_size(struct mt7915_dev *dev)
+ return MT_EE_CAL_DPD_SIZE_V2;
+ }
+
++static inline bool
++mt7915_get_background_radar_cap(struct mt7915_dev *dev)
++{
++ u8 buf[MT7915_EEPROM_BLOCK_SIZE];
++ int val, band_sel, tx_path, rx_path, offs = MT_EE_WIFI_CONF + 1;
++
++ switch (mt76_chip(&dev->mt76)) {
++ case 0x7915:
++ return 1;
++ case 0x7906:
++ if (!mt7915_mcu_get_eeprom(dev, offs, buf)) {
++ val = buf[offs % MT7915_EEPROM_BLOCK_SIZE];
++ band_sel = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
++ rx_path = FIELD_GET(MT_EE_WIFI_CONF0_RX_PATH, val);
++ tx_path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH, val);
++
++ return (band_sel == MT_EE_V2_BAND_SEL_5GHZ &&
++ tx_path == rx_path && rx_path == 2);
++ }
++ break;
++ case 0x7981:
++ case 0x7986:
++ default:
++ break;
++ }
++
++ return 0;
++}
++
+ extern const u8 mt7915_sku_group_len[MAX_SKU_RATE_GROUP_NUM];
+
+ #endif
+diff --git a/mt7915/init.c b/mt7915/init.c
+index 32bbd6c..872e615 100644
+--- a/mt7915/init.c
++++ b/mt7915/init.c
+@@ -404,9 +404,10 @@ mt7915_init_wiphy(struct mt7915_phy *phy)
+ if (!is_mt7915(&dev->mt76))
+ wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_STA_TX_PWR);
+
+- if (!mdev->dev->of_node ||
+- !of_property_read_bool(mdev->dev->of_node,
+- "mediatek,disable-radar-background"))
++ if (mt7915_get_background_radar_cap(phy->dev) &&
++ (!mdev->dev->of_node ||
++ !of_property_read_bool(mdev->dev->of_node,
++ "mediatek,disable-radar-background")))
+ wiphy_ext_feature_set(wiphy,
+ NL80211_EXT_FEATURE_RADAR_BACKGROUND);
+
+--
+2.18.0
+