include/net/bluetooth/hci_drv.h

Source file repositories/reference/linux-study-clean/include/net/bluetooth/hci_drv.h

File Facts

System
Linux kernel
Corpus path
include/net/bluetooth/hci_drv.h
Extension
.h
Size
1880 bytes
Lines
77
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

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[] __counted_by_le(num_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 */

Annotation

Implementation Notes