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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

7746 bytes

Lines

325

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/wait.h
• linux/timer.h
• linux/ieee80211.h
• uapi/linux/if_arp.h
• net/cfg80211.h

Detected Declarations

• struct mwifiex_fw_image
• struct mwifiex_802_11_ssid
• struct mwifiex_wait_queue
• struct mwifiex_rxinfo
• struct mwifiex_txinfo
• struct ieee_types_wmm_ac_parameters
• struct mwifiex_types_wmm_info
• struct mwifiex_arp_eth_header
• struct mwifiex_chan_stats
• struct mwifiex_histogram_data
• struct mwifiex_iface_comb
• struct mwifiex_radar_params
• struct mwifiex_11h_intf_state
• struct memory_type_mapping
• enum mwifiex_bss_type
• enum mwifiex_bss_role
• enum mwifiex_tdls_status
• enum mwifiex_tdls_error_code
• enum mwifiex_data_frame_type
• enum mwifiex_wmm_ac_e
• enum rdwr_status
• enum mwifiex_chan_width
• enum mwifiex_chan_offset

Annotated Snippet

struct mwifiex_fw_image {
	u8 *helper_buf;
	u32 helper_len;
	u8 *fw_buf;
	u32 fw_len;
};

struct mwifiex_802_11_ssid {
	u32 ssid_len;
	u8 ssid[IEEE80211_MAX_SSID_LEN];
};

struct mwifiex_wait_queue {
	wait_queue_head_t wait;
	int status;
};

struct mwifiex_rxinfo {
	struct sk_buff *parent;
	u8 bss_num;
	u8 bss_type;
	u8 use_count;
	u8 buf_type;
};

struct mwifiex_txinfo {
	u8 flags;
	u8 bss_num;
	u8 bss_type;
	u8 aggr_num;
	u32 pkt_len;
	u8 ack_frame_id;
	u64 cookie;
};

enum mwifiex_wmm_ac_e {
	WMM_AC_BK,
	WMM_AC_BE,
	WMM_AC_VI,
	WMM_AC_VO
} __packed;

struct ieee_types_wmm_ac_parameters {
	u8 aci_aifsn_bitmap;
	u8 ecw_bitmap;
	__le16 tx_op_limit;
} __packed;

struct mwifiex_types_wmm_info {
	u8 oui[4];
	u8 subtype;
	u8 version;
	u8 qos_info;
	u8 reserved;
	struct ieee_types_wmm_ac_parameters ac_params[IEEE80211_NUM_ACS];
} __packed;

struct mwifiex_arp_eth_header {
	struct arphdr hdr;
	u8 ar_sha[ETH_ALEN];
	u8 ar_sip[4];
	u8 ar_tha[ETH_ALEN];
	u8 ar_tip[4];
} __packed;

struct mwifiex_chan_stats {
	u8 chan_num;
	u8 bandcfg;
	u8 flags;
	s8 noise;
	u16 total_bss;
	u16 cca_scan_dur;
	u16 cca_busy_dur;
} __packed;

#define MWIFIEX_HIST_MAX_SAMPLES	1048576
#define MWIFIEX_MAX_RX_RATES		     44
#define MWIFIEX_MAX_AC_RX_RATES		     74
#define MWIFIEX_MAX_SNR			    256
#define MWIFIEX_MAX_NOISE_FLR		    256
#define MWIFIEX_MAX_SIG_STRENGTH	    256

struct mwifiex_histogram_data {
	atomic_t rx_rate[MWIFIEX_MAX_AC_RX_RATES];
	atomic_t snr[MWIFIEX_MAX_SNR];
	atomic_t noise_flr[MWIFIEX_MAX_NOISE_FLR];
	atomic_t sig_str[MWIFIEX_MAX_SIG_STRENGTH];
	atomic_t num_samples;
};

Annotation

• Immediate include surface: `linux/wait.h`, `linux/timer.h`, `linux/ieee80211.h`, `uapi/linux/if_arp.h`, `net/cfg80211.h`.
• Detected declarations: `struct mwifiex_fw_image`, `struct mwifiex_802_11_ssid`, `struct mwifiex_wait_queue`, `struct mwifiex_rxinfo`, `struct mwifiex_txinfo`, `struct ieee_types_wmm_ac_parameters`, `struct mwifiex_types_wmm_info`, `struct mwifiex_arp_eth_header`, `struct mwifiex_chan_stats`, `struct mwifiex_histogram_data`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.