drivers/net/wireless/ath/ath12k/ahb.h

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/ath/ath12k/ahb.h

Extension

.h

Size

2616 bytes

Lines

91

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/clk.h
• linux/remoteproc/qcom_rproc.h
• linux/platform_device.h
• core.h

Detected Declarations

• struct ath12k_base
• struct ath12k_ahb_device_family_ops
• struct ath12k_ahb
• struct ath12k_ahb_driver
• enum ath12k_ahb_smp2p_msg_id
• enum ath12k_ahb_userpd_irq

Annotated Snippet

struct ath12k_ahb_device_family_ops {
	int (*probe)(struct platform_device *pdev);
	int (*arch_init)(struct ath12k_base *ab);
	void (*arch_deinit)(struct ath12k_base *ab);
};

struct ath12k_ahb {
	struct ath12k_base *ab;
	struct rproc *tgt_rproc;
	struct clk *xo_clk;
	struct completion rootpd_ready;
	struct notifier_block root_pd_nb;
	void *root_pd_notifier;
	struct qcom_smem_state *spawn_state;
	struct qcom_smem_state *stop_state;
	struct completion userpd_spawned;
	struct completion userpd_ready;
	struct completion userpd_stopped;
	u32 userpd_id;
	u32 spawn_bit;
	u32 stop_bit;
	int userpd_irq_num[ATH12K_USERPD_MAX_IRQ];
	const struct ath12k_ahb_ops *ahb_ops;
	const struct ath12k_ahb_device_family_ops *device_family_ops;
	bool scm_auth_enabled;
};

struct ath12k_ahb_driver {
	const char *name;
	const struct of_device_id *id_table;
	struct ath12k_ahb_device_family_ops ops;
	struct platform_driver driver;
};

static inline struct ath12k_ahb *ath12k_ab_to_ahb(struct ath12k_base *ab)
{
	return (struct ath12k_ahb *)ab->drv_priv;
}

int ath12k_ahb_register_driver(const enum ath12k_device_family device_id,
			       struct ath12k_ahb_driver *driver);
void ath12k_ahb_unregister_driver(const enum ath12k_device_family device_id);

#endif

Annotation

• Immediate include surface: `linux/clk.h`, `linux/remoteproc/qcom_rproc.h`, `linux/platform_device.h`, `core.h`.
• Detected declarations: `struct ath12k_base`, `struct ath12k_ahb_device_family_ops`, `struct ath12k_ahb`, `struct ath12k_ahb_driver`, `enum ath12k_ahb_smp2p_msg_id`, `enum ath12k_ahb_userpd_irq`.
• 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.