drivers/net/wireless/marvell/mwifiex/usb.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/marvell/mwifiex/usb.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/marvell/mwifiex/usb.h
Extension
.h
Size
2868 bytes
Lines
129
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 urb_context {
	struct mwifiex_adapter *adapter;
	struct sk_buff *skb;
	struct urb *urb;
	u8 ep;
};

#define MWIFIEX_USB_TX_AGGR_TMO_MIN	1
#define MWIFIEX_USB_TX_AGGR_TMO_MAX	4

struct tx_aggr_tmr_cnxt {
	struct mwifiex_adapter *adapter;
	struct usb_tx_data_port *port;
	struct timer_list hold_timer;
	bool is_hold_timer_set;
	u32 hold_tmo_msecs;
};

struct usb_tx_aggr {
	struct sk_buff_head aggr_list;
	int aggr_len;
	int aggr_num;
	struct tx_aggr_tmr_cnxt timer_cnxt;
};

struct usb_tx_data_port {
	u8 tx_data_ep;
	u8 block_status;
	atomic_t tx_data_urb_pending;
	int tx_data_ix;
	struct urb_context tx_data_list[MWIFIEX_TX_DATA_URB];
	/* usb tx aggregation*/
	struct usb_tx_aggr tx_aggr;
	struct sk_buff *skb_aggr[MWIFIEX_TX_DATA_URB];
	/* lock for protect tx aggregation data path*/
	spinlock_t tx_aggr_lock;
};

struct usb_card_rec {
	struct mwifiex_adapter *adapter;
	struct usb_device *udev;
	struct usb_interface *intf;
	struct completion fw_done;
	u8 rx_cmd_ep;
	struct urb_context rx_cmd;
	atomic_t rx_cmd_urb_pending;
	struct urb_context rx_data_list[MWIFIEX_RX_DATA_URB];
	u8 usb_boot_state;
	u8 rx_data_ep;
	atomic_t rx_data_urb_pending;
	u8 tx_cmd_ep;
	atomic_t tx_cmd_urb_pending;
	int bulk_out_maxpktsize;
	struct urb_context tx_cmd;
	u8 mc_resync_flag;
	struct usb_tx_data_port port[MWIFIEX_TX_DATA_PORT];
	int rx_cmd_ep_type;
	u8 rx_cmd_interval;
	int tx_cmd_ep_type;
	u8 tx_cmd_interval;
};

struct fw_header {
	__le32 dnld_cmd;
	__le32 base_addr;
	__le32 data_len;
	__le32 crc;
};

struct fw_sync_header {
	__le32 cmd;
	__le32 seq_num;
} __packed;

struct fw_data {
	struct fw_header fw_hdr;
	__le32 seq_num;
	u8 data[];
} __packed;

#endif /*_MWIFIEX_USB_H */

Annotation

Implementation Notes