From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Tue, 26 May 2026 16:43:42 +0000 (-0400)
Subject: Bluetooth: hci_sync: Add support for HCI_LE_Set_Host_Feature [v2]
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb87bf6fcae6a2dc25d7f2c977d2cbca2113fb1e;p=thirdparty%2Flinux.git

Bluetooth: hci_sync: Add support for HCI_LE_Set_Host_Feature [v2]

This adds support for using HCI_LE_Set_Host_Feature [v2] instead of v1
if LL Extented Features is supported and the controller supports the
command.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 572b1c620c5d6..5462f14ea0c60 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -2486,6 +2486,12 @@ struct hci_rp_le_cs_test {
 
 #define HCI_OP_LE_CS_TEST_END			0x2096
 
+#define HCI_OP_LE_SET_HOST_FEATURE_V2		0x2097
+struct hci_cp_le_set_host_feature_v2 {
+	__le16	bit_number;
+	__u8	bit_value;
+} __packed;
+
 /* ---- HCI Events ---- */
 struct hci_ev_status {
 	__u8    status;
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index df23245d6ccda..3be8c3581c6ca 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4588,11 +4588,33 @@ static int hci_set_le_support_sync(struct hci_dev *hdev)
 				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
 }
 
+/* LE Set Host Feature V2 */
+static int hci_le_set_host_feature_v2_sync(struct hci_dev *hdev, u16 bit,
+					   u8 value)
+{
+	struct hci_cp_le_set_host_feature_v2 cp;
+
+	memset(&cp, 0, sizeof(cp));
+
+	/* Connected Isochronous Channels (Host Support) */
+	cp.bit_number = cpu_to_le16(bit);
+	cp.bit_value = value;
+
+	return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_HOST_FEATURE_V2,
+				     sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
 /* LE Set Host Feature */
-static int hci_le_set_host_feature_sync(struct hci_dev *hdev, u8 bit, u8 value)
+static int hci_le_set_host_feature_sync(struct hci_dev *hdev, u16 bit, u8 value)
 {
 	struct hci_cp_le_set_host_feature cp;
 
+	if (ll_ext_feature_capable(hdev) && hdev->commands[47] & BIT(4))
+		return hci_le_set_host_feature_v2_sync(hdev, bit, value);
+
+	if (bit > 255)
+		return 0;
+
 	memset(&cp, 0, sizeof(cp));
 
 	/* Connected Isochronous Channels (Host Support) */