drivers/net/wireless/ti/wl18xx/scan.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ti/wl18xx/scan.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ti/wl18xx/scan.h
Extension
.h
Size
2965 bytes
Lines
114
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 tracking_ch_params {
	struct conn_scan_ch_params channel;

	__le32 bssid_lsb;
	__le16 bssid_msb;

	u8 padding[2];
} __packed;

/* probe request rate */
enum
{
	WL18XX_SCAN_RATE_1	= 0,
	WL18XX_SCAN_RATE_5_5	= 1,
	WL18XX_SCAN_RATE_6	= 2,
};

#define WL18XX_MAX_CHANNELS_5GHZ 32

struct wl18xx_cmd_scan_params {
	struct wl1271_cmd_header header;

	u8 role_id;
	u8 scan_type;

	s8 rssi_threshold; /* for filtering (in dBm) */
	s8 snr_threshold;  /* for filtering (in dB) */

	u8 bss_type;	   /* for filtering */
	u8 ssid_from_list; /* use ssid from configured ssid list */
	u8 filter;	   /* forward only results with matching ssids */

	/*
	 * add broadcast ssid in addition to the configured ssids.
	 * the driver should add dummy entry for it (?).
	 */
	u8 add_broadcast;

	u8 urgency;
	u8 protect;	 /* ??? */
	u8 n_probe_reqs;    /* Number of probes requests per channel */
	u8 terminate_after; /* early terminate scan operation */

	u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */
	u8 active[SCAN_MAX_BANDS];  /* number of active scan channels */
	u8 dfs;		   /* number of dfs channels in 5ghz */
	u8 passive_active; /* number of passive before active channels 2.4ghz */

	__le16 short_cycles_msec;
	__le16 long_cycles_msec;
	u8 short_cycles_count;
	u8 total_cycles; /* 0 - infinite */
	u8 padding[2];

	union {
		struct {
			struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
			struct conn_scan_ch_params channels_5[WL18XX_MAX_CHANNELS_5GHZ];
			struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
		};
		struct tracking_ch_params channels_tracking[WL1271_SCAN_MAX_CHANNELS];
	} ;

	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len;	 /* For SCAN_SSID_FILTER_SPECIFIC */
	u8 tag;
	u8 rate;

	/* send SCAN_REPORT_EVENT in periodic scans after each cycle
	* if number of results >= report_threshold. Must be 0 for
	* non periodic scans
	*/
	u8 report_threshold;

	/* Should periodic scan stop after a report event was created.
	* Must be 0 for non periodic scans.
	*/
	u8 terminate_on_report;

	u8 padding1[3];
} __packed;

struct wl18xx_cmd_scan_stop {
	struct wl1271_cmd_header header;

	u8 role_id;
	u8 scan_type;
	u8 padding[2];
} __packed;

Annotation

Implementation Notes