drivers/net/wireless/ralink/rt2x00/rt73usb.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ralink/rt2x00/rt73usb.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ralink/rt2x00/rt73usb.h
Extension
.h
Size
30417 bytes
Lines
1069
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 hw_key_entry {
	u8 key[16];
	u8 tx_mic[8];
	u8 rx_mic[8];
} __packed;

struct hw_pairwise_ta_entry {
	u8 address[6];
	u8 cipher;
	u8 reserved;
} __packed;

/*
 * Since NULL frame won't be that long (256 byte),
 * We steal 16 tail bytes to save debugging settings.
 */
#define HW_DEBUG_SETTING_BASE		0x2bf0

/*
 * On-chip BEACON frame space.
 */
#define HW_BEACON_BASE0			0x2400
#define HW_BEACON_BASE1			0x2500
#define HW_BEACON_BASE2			0x2600
#define HW_BEACON_BASE3			0x2700

#define HW_BEACON_OFFSET(__index) \
	( HW_BEACON_BASE0 + (__index * 0x0100) )

/*
 * MAC Control/Status Registers(CSR).
 * Some values are set in TU, whereas 1 TU == 1024 us.
 */

/*
 * MAC_CSR0: ASIC revision number.
 */
#define MAC_CSR0			0x3000
#define MAC_CSR0_REVISION		FIELD32(0x0000000f)
#define MAC_CSR0_CHIPSET		FIELD32(0x000ffff0)

/*
 * MAC_CSR1: System control register.
 * SOFT_RESET: Software reset bit, 1: reset, 0: normal.
 * BBP_RESET: Hardware reset BBP.
 * HOST_READY: Host is ready after initialization, 1: ready.
 */
#define MAC_CSR1			0x3004
#define MAC_CSR1_SOFT_RESET		FIELD32(0x00000001)
#define MAC_CSR1_BBP_RESET		FIELD32(0x00000002)
#define MAC_CSR1_HOST_READY		FIELD32(0x00000004)

/*
 * MAC_CSR2: STA MAC register 0.
 */
#define MAC_CSR2			0x3008
#define MAC_CSR2_BYTE0			FIELD32(0x000000ff)
#define MAC_CSR2_BYTE1			FIELD32(0x0000ff00)
#define MAC_CSR2_BYTE2			FIELD32(0x00ff0000)
#define MAC_CSR2_BYTE3			FIELD32(0xff000000)

/*
 * MAC_CSR3: STA MAC register 1.
 * UNICAST_TO_ME_MASK:
 *	Used to mask off bits from byte 5 of the MAC address
 *	to determine the UNICAST_TO_ME bit for RX frames.
 *	The full mask is complemented by BSS_ID_MASK:
 *		MASK = BSS_ID_MASK & UNICAST_TO_ME_MASK
 */
#define MAC_CSR3			0x300c
#define MAC_CSR3_BYTE4			FIELD32(0x000000ff)
#define MAC_CSR3_BYTE5			FIELD32(0x0000ff00)
#define MAC_CSR3_UNICAST_TO_ME_MASK	FIELD32(0x00ff0000)

/*
 * MAC_CSR4: BSSID register 0.
 */
#define MAC_CSR4			0x3010
#define MAC_CSR4_BYTE0			FIELD32(0x000000ff)
#define MAC_CSR4_BYTE1			FIELD32(0x0000ff00)
#define MAC_CSR4_BYTE2			FIELD32(0x00ff0000)
#define MAC_CSR4_BYTE3			FIELD32(0xff000000)

/*
 * MAC_CSR5: BSSID register 1.
 * BSS_ID_MASK:
 *	This mask is used to mask off bits 0 and 1 of byte 5 of the
 *	BSSID. This will make sure that those bits will be ignored
 *	when determining the MY_BSS of RX frames.
 *		0: 1-BSSID mode (BSS index = 0)

Annotation

Implementation Notes