drivers/net/wireless/ath/ath9k/htc.h

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/ath/ath9k/htc.h

Extension

.h

Size

16606 bytes

Lines

654

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/usb.h
• linux/firmware.h
• linux/skbuff.h
• linux/netdevice.h
• linux/etherdevice.h
• linux/leds.h
• linux/slab.h
• net/mac80211.h
• common.h
• htc_hst.h
• hif_usb.h
• wmi.h

Detected Declarations

• struct tx_frame_hdr
• struct tx_mgmt_hdr
• struct tx_beacon_header
• struct ath9k_htc_cap_target
• struct ath9k_htc_target_vif
• struct ath9k_htc_target_sta
• struct ath9k_htc_target_aggr
• struct ath9k_htc_rateset
• struct ath9k_htc_rate
• struct ath9k_htc_target_rate
• struct ath9k_htc_target_rate_mask
• struct ath9k_htc_target_int_stats
• struct ath9k_htc_target_tx_stats
• struct ath9k_htc_target_rx_stats
• struct ath9k_htc_vif
• struct ath9k_vif_iter_data
• struct ath9k_htc_sta
• struct ath9k_htc_rxbuf
• struct ath9k_htc_rx
• struct ath9k_htc_tx
• struct ath9k_htc_tx_ctl
• struct ath_tx_stats
• struct ath_skbrx_stats
• struct ath9k_debug
• struct htc_beacon
• struct ath_btcoex
• struct ath9k_htc_priv
• enum htc_phymode
• enum htc_opmode
• enum tid_aggr_state
• enum htc_op_flags
• function ath9k_htc_err_stat_rx
• function ath9k_htc_init_btcoex
• function ath_read_cachesize
• function ath9k_configure_leds
• function ath9k_htc_init_debug
• function ath9k_htc_deinit_debug

Annotated Snippet

struct tx_frame_hdr {
	u8 data_type;
	u8 node_idx;
	u8 vif_idx;
	u8 tidno;
	__be32 flags; /* ATH9K_HTC_TX_* */
	u8 key_type;
	u8 keyix;
	u8 cookie;
	u8 pad;
} __packed;

struct tx_mgmt_hdr {
	u8 node_idx;
	u8 vif_idx;
	u8 tidno;
	u8 flags;
	u8 key_type;
	u8 keyix;
	u8 cookie;
	u8 pad;
} __packed;

struct tx_beacon_header {
	u8 vif_index;
	u8 len_changed;
	u16 rev;
} __packed;

#define MAX_TX_AMPDU_SUBFRAMES_9271 17
#define MAX_TX_AMPDU_SUBFRAMES_7010 22

struct ath9k_htc_cap_target {
	__be32 ampdu_limit;
	u8 ampdu_subframes;
	u8 enable_coex;
	u8 tx_chainmask;
	u8 pad;
} __packed;

struct ath9k_htc_target_vif {
	u8 index;
	u8 opmode;
	u8 myaddr[ETH_ALEN];
	u8 ath_cap;
	__be16 rtsthreshold;
	u8 pad;
} __packed;

struct ath9k_htc_target_sta {
	u8 macaddr[ETH_ALEN];
	u8 bssid[ETH_ALEN];
	u8 sta_index;
	u8 vif_index;
	u8 is_vif_sta;
	__be16 flags;
	__be16 htcap;
	__be16 maxampdu;
	u8 pad;
} __packed;

struct ath9k_htc_target_aggr {
	u8 sta_index;
	u8 tidno;
	u8 aggr_enable;
	u8 padding;
} __packed;

#define ATH_HTC_RATE_MAX 30

#define WLAN_RC_DS_FLAG  0x01
#define WLAN_RC_40_FLAG  0x02
#define WLAN_RC_SGI_FLAG 0x04
#define WLAN_RC_HT_FLAG  0x08
#define ATH_RC_TX_STBC_FLAG 0x20

struct ath9k_htc_rateset {
	u8 rs_nrates;
	u8 rs_rates[ATH_HTC_RATE_MAX];
};

struct ath9k_htc_rate {
	struct ath9k_htc_rateset legacy_rates;
	struct ath9k_htc_rateset ht_rates;
} __packed;

struct ath9k_htc_target_rate {
	u8 sta_index;
	u8 isnew;
	__be32 capflags;

Annotation

• Immediate include surface: `linux/module.h`, `linux/usb.h`, `linux/firmware.h`, `linux/skbuff.h`, `linux/netdevice.h`, `linux/etherdevice.h`, `linux/leds.h`, `linux/slab.h`.
• Detected declarations: `struct tx_frame_hdr`, `struct tx_mgmt_hdr`, `struct tx_beacon_header`, `struct ath9k_htc_cap_target`, `struct ath9k_htc_target_vif`, `struct ath9k_htc_target_sta`, `struct ath9k_htc_target_aggr`, `struct ath9k_htc_rateset`, `struct ath9k_htc_rate`, `struct ath9k_htc_target_rate`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.