drivers/media/pci/intel/ipu6/ipu6-fw-com.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/intel/ipu6/ipu6-fw-com.h

Extension

.h

Size

1471 bytes

Lines

48

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct ipu6_fw_com_context
• struct ipu6_bus_device
• struct ipu6_fw_syscom_queue_config
• struct ipu6_fw_com_cfg

Annotated Snippet

struct ipu6_fw_syscom_queue_config {
	unsigned int queue_size;	/* tokens per queue */
	unsigned int token_size;	/* bytes per token */
};

#define SYSCOM_BUTTRESS_FW_PARAMS_ISYS_OFFSET	0

struct ipu6_fw_com_cfg {
	unsigned int num_input_queues;
	unsigned int num_output_queues;
	struct ipu6_fw_syscom_queue_config *input;
	struct ipu6_fw_syscom_queue_config *output;

	unsigned int dmem_addr;

	/* firmware-specific configuration data */
	void *specific_addr;
	unsigned int specific_size;
	int (*cell_ready)(struct ipu6_bus_device *adev);
	void (*cell_start)(struct ipu6_bus_device *adev);

	unsigned int buttress_boot_offset;
};

void *ipu6_fw_com_prepare(struct ipu6_fw_com_cfg *cfg,
			  struct ipu6_bus_device *adev, void __iomem *base);

int ipu6_fw_com_open(struct ipu6_fw_com_context *ctx);
bool ipu6_fw_com_ready(struct ipu6_fw_com_context *ctx);
int ipu6_fw_com_close(struct ipu6_fw_com_context *ctx);
int ipu6_fw_com_release(struct ipu6_fw_com_context *ctx, unsigned int force);

void *ipu6_recv_get_token(struct ipu6_fw_com_context *ctx, int q_nbr);
void ipu6_recv_put_token(struct ipu6_fw_com_context *ctx, int q_nbr);
void *ipu6_send_get_token(struct ipu6_fw_com_context *ctx, int q_nbr);
void ipu6_send_put_token(struct ipu6_fw_com_context *ctx, int q_nbr);

#endif

Annotation

• Detected declarations: `struct ipu6_fw_com_context`, `struct ipu6_bus_device`, `struct ipu6_fw_syscom_queue_config`, `struct ipu6_fw_com_cfg`.
• 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.