drivers/net/wireless/ath/ath11k/htc.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ath/ath11k/htc.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/ath11k/htc.h
Extension
.h
Size
8847 bytes
Lines
299
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 ath11k_htc_hdr {
	u32 htc_info;
	u32 ctrl_info;
} __packed __aligned(4);

enum ath11k_htc_msg_id {
	ATH11K_HTC_MSG_READY_ID                = 1,
	ATH11K_HTC_MSG_CONNECT_SERVICE_ID      = 2,
	ATH11K_HTC_MSG_CONNECT_SERVICE_RESP_ID = 3,
	ATH11K_HTC_MSG_SETUP_COMPLETE_ID       = 4,
	ATH11K_HTC_MSG_SETUP_COMPLETE_EX_ID    = 5,
	ATH11K_HTC_MSG_SEND_SUSPEND_COMPLETE   = 6,
	ATH11K_HTC_MSG_NACK_SUSPEND	       = 7,
	ATH11K_HTC_MSG_WAKEUP_FROM_SUSPEND_ID  = 8,
};

enum ath11k_htc_version {
	ATH11K_HTC_VERSION_2P0 = 0x00, /* 2.0 */
	ATH11K_HTC_VERSION_2P1 = 0x01, /* 2.1 */
};

#define ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK GENMASK(1, 0)
#define ATH11K_HTC_CONN_FLAGS_RECV_ALLOC GENMASK(15, 8)

enum ath11k_htc_conn_flags {
	ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_FOURTH    = 0x0,
	ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_HALF      = 0x1,
	ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_THREE_FOURTHS = 0x2,
	ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_UNITY         = 0x3,
	ATH11K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE	    = 0x4,
	ATH11K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL	    = 0x8,
};

enum ath11k_htc_conn_svc_status {
	ATH11K_HTC_CONN_SVC_STATUS_SUCCESS      = 0,
	ATH11K_HTC_CONN_SVC_STATUS_NOT_FOUND    = 1,
	ATH11K_HTC_CONN_SVC_STATUS_FAILED       = 2,
	ATH11K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3,
	ATH11K_HTC_CONN_SVC_STATUS_NO_MORE_EP   = 4
};

struct ath11k_htc_ready {
	u32 id_credit_count;
	u32 size_ep;
} __packed;

struct ath11k_htc_ready_extended {
	struct ath11k_htc_ready base;
	u32 ver_bundle;
} __packed;

struct ath11k_htc_conn_svc {
	u32 msg_svc_id;
	u32 flags_len;
} __packed;

struct ath11k_htc_conn_svc_resp {
	u32 msg_svc_id;
	u32 flags_len;
	u32 svc_meta_pad;
} __packed;

#define ATH11K_GLOBAL_DISABLE_CREDIT_FLOW BIT(1)

struct ath11k_htc_setup_complete_extended {
	u32 msg_id;
	u32 flags;
	u32 max_msgs_per_bundled_recv;
} __packed;

struct ath11k_htc_msg {
	u32 msg_svc_id;
	u32 flags_len;
} __packed __aligned(4);

enum ath11k_htc_record_id {
	ATH11K_HTC_RECORD_NULL    = 0,
	ATH11K_HTC_RECORD_CREDITS = 1
};

struct ath11k_htc_record_hdr {
	u8 id; /* @enum ath11k_htc_record_id */
	u8 len;
	u8 pad0;
	u8 pad1;
} __packed;

struct ath11k_htc_credit_report {
	u8 eid; /* @enum ath11k_htc_ep_id */
	u8 credits;

Annotation

Implementation Notes