drivers/net/wireless/ath/ath10k/usb.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ath/ath10k/usb.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/ath10k/usb.h
Extension
.h
Size
3121 bytes
Lines
119
Domain
Driver Families
Bucket
drivers/net
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ath10k_usb_ctrl_diag_cmd_write {
	__le32 cmd;
	__le32 address;
	__le32 value;
	__le32 padding;
} __packed;

struct ath10k_usb_ctrl_diag_cmd_read {
	__le32 cmd;
	__le32 address;
} __packed;

struct ath10k_usb_ctrl_diag_resp_read {
	u8 value[4];
} __packed;

/* tx/rx pipes for usb */
enum ath10k_usb_pipe_id {
	ATH10K_USB_PIPE_TX_CTRL = 0,
	ATH10K_USB_PIPE_TX_DATA_LP,
	ATH10K_USB_PIPE_TX_DATA_MP,
	ATH10K_USB_PIPE_TX_DATA_HP,
	ATH10K_USB_PIPE_RX_CTRL,
	ATH10K_USB_PIPE_RX_DATA,
	ATH10K_USB_PIPE_RX_DATA2,
	ATH10K_USB_PIPE_RX_INT,
	ATH10K_USB_PIPE_MAX
};

struct ath10k_usb_pipe {
	struct list_head urb_list_head;
	struct usb_anchor urb_submitted;
	u32 urb_alloc;
	u32 urb_cnt;
	u32 urb_cnt_thresh;
	unsigned int usb_pipe_handle;
	u32 flags;
	u8 ep_address;
	u8 logical_pipe_num;
	struct ath10k_usb *ar_usb;
	u16 max_packet_size;
	struct work_struct io_complete_work;
	struct sk_buff_head io_comp_queue;
	struct usb_endpoint_descriptor *ep_desc;
};

#define ATH10K_USB_PIPE_FLAG_TX BIT(0)

/* usb device object */
struct ath10k_usb {
	/* protects pipe->urb_list_head and  pipe->urb_cnt */
	spinlock_t cs_lock;

	struct usb_device *udev;
	struct usb_interface *interface;
	struct ath10k_usb_pipe pipes[ATH10K_USB_PIPE_MAX];
	u8 *diag_cmd_buffer;
	u8 *diag_resp_buffer;
	struct ath10k *ar;
};

/* usb urb object */
struct ath10k_urb_context {
	struct list_head link;
	struct ath10k_usb_pipe *pipe;
	struct sk_buff *skb;
	struct ath10k *ar;
};

static inline struct ath10k_usb *ath10k_usb_priv(struct ath10k *ar)
{
	return (struct ath10k_usb *)ar->drv_priv;
}

#endif

Annotation

Implementation Notes