drivers/media/pci/mantis/mantis_link.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/mantis/mantis_link.h

Extension

.h

Size

1743 bytes

Lines

72

Domain

Driver Families

Bucket

drivers/media

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/mutex.h
• linux/workqueue.h
• media/dvb_ca_en50221.h

Detected Declarations

• struct mantis_slot
• struct mantis_ca
• enum mantis_sbuf_status
• enum mantis_slot_state

Annotated Snippet

struct mantis_slot {
	u32				timeout;
	u32				slave_cfg;
	u32				bar;
};

/* Physical layer */
enum mantis_slot_state {
	MODULE_INSERTED			= 3,
	MODULE_XTRACTED			= 4
};

struct mantis_ca {
	struct mantis_slot		slot[4];

	struct work_struct		hif_evm_work;

	u32				hif_event;
	wait_queue_head_t		hif_opdone_wq;
	wait_queue_head_t		hif_brrdyw_wq;
	wait_queue_head_t		hif_data_wq;
	wait_queue_head_t		hif_write_wq; /* HIF Write op */

	enum mantis_sbuf_status		sbuf_status;

	enum mantis_slot_state		slot_state;

	void				*ca_priv;

	struct dvb_ca_en50221		en50221;
	struct mutex			ca_lock;
};

/* CA */
extern void mantis_event_cam_plugin(struct mantis_ca *ca);
extern void mantis_event_cam_unplug(struct mantis_ca *ca);
extern int mantis_pcmcia_init(struct mantis_ca *ca);
extern void mantis_pcmcia_exit(struct mantis_ca *ca);
extern int mantis_evmgr_init(struct mantis_ca *ca);
extern void mantis_evmgr_exit(struct mantis_ca *ca);

/* HIF */
extern int mantis_hif_init(struct mantis_ca *ca);
extern void mantis_hif_exit(struct mantis_ca *ca);
extern int mantis_hif_read_mem(struct mantis_ca *ca, u32 addr);
extern int mantis_hif_write_mem(struct mantis_ca *ca, u32 addr, u8 data);
extern int mantis_hif_read_iom(struct mantis_ca *ca, u32 addr);
extern int mantis_hif_write_iom(struct mantis_ca *ca, u32 addr, u8 data);

#endif /* __MANTIS_LINK_H */

Annotation

• Immediate include surface: `linux/mutex.h`, `linux/workqueue.h`, `media/dvb_ca_en50221.h`.
• Detected declarations: `struct mantis_slot`, `struct mantis_ca`, `enum mantis_sbuf_status`, `enum mantis_slot_state`.
• Atlas domain: Driver Families / drivers/media.
• 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.