4 files changed, 82 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 797992019f9e..2502febf4da7 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -494,6 +494,7 @@ enum {
 #define HCI_EVENT_PKT		0x04
 #define HCI_ISODATA_PKT		0x05
 #define HCI_DIAG_PKT		0xf0
+#define HCI_DRV_PKT		0xf1
 #define HCI_VENDOR_PKT		0xff
 
 /* HCI packet types */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 54bfeeaa0995..57f6175fd1cd 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -31,6 +31,7 @@
 #include <linux/rculist.h>
 
 #include <net/bluetooth/hci.h>
+#include <net/bluetooth/hci_drv.h>
 #include <net/bluetooth/hci_sync.h>
 #include <net/bluetooth/hci_sock.h>
 #include <net/bluetooth/coredump.h>
@@ -613,6 +614,8 @@ struct hci_dev {
 	struct list_head	monitored_devices;
 	bool			advmon_pend_notify;
 
+	struct hci_drv		*hci_drv;
+
 #if IS_ENABLED(CONFIG_BT_LEDS)
 	struct led_trigger	*power_led;
 #endif
diff --git a/include/net/bluetooth/hci_drv.h b/include/net/bluetooth/hci_drv.h
new file mode 100644
index 000000000000..2f01c44f05ec
--- /dev/null
+++ b/include/net/bluetooth/hci_drv.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2025 Google Corporation
+ */
+
+#ifndef __HCI_DRV_H
+#define __HCI_DRV_H
+
+#include <linux/types.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci.h>
+
+struct hci_drv_cmd_hdr {
+	__le16	opcode;
+	__le16	len;
+} __packed;
+
+struct hci_drv_ev_hdr {
+	__le16	opcode;
+	__le16	len;
+} __packed;
+
+#define HCI_DRV_EV_CMD_STATUS	0x0000
+struct hci_drv_ev_cmd_status {
+	__le16	opcode;
+	__u8	status;
+} __packed;
+
+#define HCI_DRV_EV_CMD_COMPLETE	0x0001
+struct hci_drv_ev_cmd_complete {
+	__le16	opcode;
+	__u8	status;
+	__u8	data[];
+} __packed;
+
+#define HCI_DRV_STATUS_SUCCESS			0x00
+#define HCI_DRV_STATUS_UNSPECIFIED_ERROR	0x01
+#define HCI_DRV_STATUS_UNKNOWN_COMMAND		0x02
+#define HCI_DRV_STATUS_INVALID_PARAMETERS	0x03
+
+#define HCI_DRV_MAX_DRIVER_NAME_LENGTH	32
+
+/* Common commands that make sense on all drivers start from 0x0000 */
+#define HCI_DRV_OP_READ_INFO	0x0000
+#define HCI_DRV_READ_INFO_SIZE	0
+struct hci_drv_rp_read_info {
+	__u8	driver_name[HCI_DRV_MAX_DRIVER_NAME_LENGTH];
+	__le16	num_supported_commands;
+	__le16	supported_commands[];
+} __packed;
+
+/* Driver specific OGF (Opcode Group Field)
+ * Commands in this group may have different meanings across different drivers.
+ */
+#define HCI_DRV_OGF_DRIVER_SPECIFIC	0x01
+
+int hci_drv_cmd_status(struct hci_dev *hdev, u16 cmd, u8 status);
+int hci_drv_cmd_complete(struct hci_dev *hdev, u16 cmd, u8 status, void *rp,
+			 size_t rp_len);
+int hci_drv_process_cmd(struct hci_dev *hdev, struct sk_buff *cmd_skb);
+
+struct hci_drv_handler {
+	int (*func)(struct hci_dev *hdev, void *data, u16 data_len);
+	size_t data_len;
+};
+
+struct hci_drv {
+	size_t common_handler_count;
+	const struct hci_drv_handler *common_handlers;
+
+	size_t specific_handler_count;
+	const struct hci_drv_handler *specific_handlers;
+};
+
+#endif /* __HCI_DRV_H */
diff --git a/include/net/bluetooth/hci_mon.h b/include/net/bluetooth/hci_mon.h
index 082f89531b88..bbd752494ef9 100644
--- a/include/net/bluetooth/hci_mon.h
+++ b/include/net/bluetooth/hci_mon.h
@@ -51,6 +51,8 @@ struct hci_mon_hdr {
 #define HCI_MON_CTRL_EVENT	17
 #define HCI_MON_ISO_TX_PKT	18
 #define HCI_MON_ISO_RX_PKT	19
+#define HCI_MON_DRV_TX_PKT	20
+#define HCI_MON_DRV_RX_PKT	21
 
 struct hci_mon_new_index {
 	__u8		type;