drivers/bluetooth/btmtk.h

File Facts

System

Linux kernel

Corpus path

drivers/bluetooth/btmtk.h

Extension

.h

Size

6870 bytes

Lines

310

Domain

Driver Families

Bucket

drivers/bluetooth

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct btmtk_wmt_hdr
• struct btmtk_hci_wmt_cmd
• struct btmtk_hci_wmt_evt
• struct btmtk_hci_wmt_evt_funcc
• struct btmtk_hci_wmt_evt_reg
• struct btmtk_tci_sleep
• struct btmtk_wakeon
• struct btmtk_sco
• struct reg_read_cmd
• struct reg_write_cmd
• struct btmtk_hci_wmt_params
• struct btmtk_coredump_info
• struct btmtk_data
• function btmtk_set_bdaddr
• function btmtk_setup_firmware_79xx
• function btmtk_setup_firmware
• function btmtk_reset_sync
• function btmtk_process_coredump
• function btmtk_fw_get_filename
• function btmtk_usb_recv_acl
• function btmtk_usb_resume
• function btmtk_usb_suspend
• function btmtk_usb_setup
• function btmtk_usb_shutdown
• function btmtk_recv_event

Annotated Snippet

struct btmtk_wmt_hdr {
	u8	dir;
	u8	op;
	__le16	dlen;
	u8	flag;
} __packed;

struct btmtk_hci_wmt_cmd {
	struct btmtk_wmt_hdr hdr;
	u8 data[];
} __packed;

struct btmtk_hci_wmt_evt {
	struct hci_event_hdr hhdr;
	struct btmtk_wmt_hdr whdr;
} __packed;

struct btmtk_hci_wmt_evt_funcc {
	struct btmtk_hci_wmt_evt hwhdr;
	__be16 status;
} __packed;

struct btmtk_hci_wmt_evt_reg {
	struct btmtk_hci_wmt_evt hwhdr;
	u8 rsv[2];
	u8 num;
	__le32 addr;
	__le32 val;
} __packed;

struct btmtk_tci_sleep {
	u8 mode;
	__le16 duration;
	__le16 host_duration;
	u8 host_wakeup_pin;
	u8 time_compensation;
} __packed;

struct btmtk_wakeon {
	u8 mode;
	u8 gpo;
	u8 active_high;
	__le16 enable_delay;
	__le16 wakeup_delay;
} __packed;

struct btmtk_sco {
	u8 clock_config;
	u8 transmit_format_config;
	u8 channel_format_config;
	u8 channel_select_config;
} __packed;

struct reg_read_cmd {
	u8 type;
	u8 rsv;
	u8 num;
	__le32 addr;
} __packed;

struct reg_write_cmd {
	u8 type;
	u8 rsv;
	u8 num;
	__le32 addr;
	__le32 data;
	__le32 mask;
} __packed;

struct btmtk_hci_wmt_params {
	u8 op;
	u8 flag;
	u16 dlen;
	const void *data;
	u32 *status;
};

enum {
	BTMTK_TX_WAIT_VND_EVT,
	BTMTK_FIRMWARE_LOADED,
	BTMTK_HW_RESET_ACTIVE,
	BTMTK_ISOPKT_OVER_INTR,
	BTMTK_ISOPKT_RUNNING,
	BTMTK_FIRMWARE_DL_RETRY,
};

typedef int (*btmtk_reset_sync_func_t)(struct hci_dev *, void *);

struct btmtk_coredump_info {
	const char *driver_name;

Annotation

• Detected declarations: `struct btmtk_wmt_hdr`, `struct btmtk_hci_wmt_cmd`, `struct btmtk_hci_wmt_evt`, `struct btmtk_hci_wmt_evt_funcc`, `struct btmtk_hci_wmt_evt_reg`, `struct btmtk_tci_sleep`, `struct btmtk_wakeon`, `struct btmtk_sco`, `struct reg_read_cmd`, `struct reg_write_cmd`.
• Atlas domain: Driver Families / drivers/bluetooth.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.