drivers/net/wireless/intel/ipw2x00/libipw.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/ipw2x00/libipw.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/intel/ipw2x00/libipw.h
Extension
.h
Size
31257 bytes
Lines
1098
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 libipw_snap_hdr {

	u8 dsap;		/* always 0xAA */
	u8 ssap;		/* always 0xAA */
	u8 ctrl;		/* always 0x03 */
	u8 oui[P80211_OUI_LEN];	/* organizational universal id */

} __packed;

#define SNAP_SIZE sizeof(struct libipw_snap_hdr)

#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)

#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)

#define LIBIPW_STATMASK_SIGNAL (1<<0)
#define LIBIPW_STATMASK_RSSI (1<<1)
#define LIBIPW_STATMASK_NOISE (1<<2)
#define LIBIPW_STATMASK_RATE (1<<3)
#define LIBIPW_STATMASK_WEMASK 0x7

#define LIBIPW_CCK_MODULATION    (1<<0)
#define LIBIPW_OFDM_MODULATION   (1<<1)

#define LIBIPW_24GHZ_BAND     (1<<0)
#define LIBIPW_52GHZ_BAND     (1<<1)

#define LIBIPW_CCK_RATE_1MB		        0x02
#define LIBIPW_CCK_RATE_2MB		        0x04
#define LIBIPW_CCK_RATE_5MB		        0x0B
#define LIBIPW_CCK_RATE_11MB		        0x16
#define LIBIPW_OFDM_RATE_6MB		        0x0C
#define LIBIPW_OFDM_RATE_9MB		        0x12
#define LIBIPW_OFDM_RATE_12MB		0x18
#define LIBIPW_OFDM_RATE_18MB		0x24
#define LIBIPW_OFDM_RATE_24MB		0x30
#define LIBIPW_OFDM_RATE_36MB		0x48
#define LIBIPW_OFDM_RATE_48MB		0x60
#define LIBIPW_OFDM_RATE_54MB		0x6C
#define LIBIPW_BASIC_RATE_MASK		0x80

#define LIBIPW_CCK_RATE_1MB_MASK		(1<<0)
#define LIBIPW_CCK_RATE_2MB_MASK		(1<<1)
#define LIBIPW_CCK_RATE_5MB_MASK		(1<<2)
#define LIBIPW_CCK_RATE_11MB_MASK		(1<<3)
#define LIBIPW_OFDM_RATE_6MB_MASK		(1<<4)
#define LIBIPW_OFDM_RATE_9MB_MASK		(1<<5)
#define LIBIPW_OFDM_RATE_12MB_MASK		(1<<6)
#define LIBIPW_OFDM_RATE_18MB_MASK		(1<<7)
#define LIBIPW_OFDM_RATE_24MB_MASK		(1<<8)
#define LIBIPW_OFDM_RATE_36MB_MASK		(1<<9)
#define LIBIPW_OFDM_RATE_48MB_MASK		(1<<10)
#define LIBIPW_OFDM_RATE_54MB_MASK		(1<<11)

#define LIBIPW_CCK_RATES_MASK	        0x0000000F
#define LIBIPW_CCK_BASIC_RATES_MASK	(LIBIPW_CCK_RATE_1MB_MASK | \
	LIBIPW_CCK_RATE_2MB_MASK)
#define LIBIPW_CCK_DEFAULT_RATES_MASK	(LIBIPW_CCK_BASIC_RATES_MASK | \
        LIBIPW_CCK_RATE_5MB_MASK | \
        LIBIPW_CCK_RATE_11MB_MASK)

#define LIBIPW_OFDM_RATES_MASK		0x00000FF0
#define LIBIPW_OFDM_BASIC_RATES_MASK	(LIBIPW_OFDM_RATE_6MB_MASK | \
	LIBIPW_OFDM_RATE_12MB_MASK | \
	LIBIPW_OFDM_RATE_24MB_MASK)
#define LIBIPW_OFDM_DEFAULT_RATES_MASK	(LIBIPW_OFDM_BASIC_RATES_MASK | \
	LIBIPW_OFDM_RATE_9MB_MASK  | \
	LIBIPW_OFDM_RATE_18MB_MASK | \
	LIBIPW_OFDM_RATE_36MB_MASK | \
	LIBIPW_OFDM_RATE_48MB_MASK | \
	LIBIPW_OFDM_RATE_54MB_MASK)
#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
                                LIBIPW_CCK_DEFAULT_RATES_MASK)

#define LIBIPW_NUM_OFDM_RATES	    8
#define LIBIPW_NUM_CCK_RATES	            4
#define LIBIPW_OFDM_SHIFT_MASK_A         4

/* NOTE: This data is for statistical purposes; not all hardware provides this
 *       information for frames received.
 *       For libipw_rx_mgt, you need to set at least the 'len' parameter.
 */
struct libipw_rx_stats {
	u32 mac_time;
	s8 rssi;
	u8 signal;
	u8 noise;

Annotation

Implementation Notes