drivers/net/ethernet/asix/ax88796c_spi.h

File Facts

System

Linux kernel

Corpus path

drivers/net/ethernet/asix/ax88796c_spi.h

Extension

.h

Size

1757 bytes

Lines

70

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/spi/spi.h
• linux/types.h

Detected Declarations

• struct axspi_data
• struct spi_status
• function AX_READ
• function AX_WRITE
• function AX_READ_STATUS
• function AX_WAKEUP

Annotated Snippet

struct axspi_data {
	struct spi_device	*spi;
	struct spi_message	rx_msg;
	struct spi_transfer	spi_rx_xfer[2];
	u8			cmd_buf[6];
	u8			rx_buf[6];
	u8			comp;
};

struct spi_status {
	u16 isr;
	u8 status;
#	define AX_STATUS_READY		0x80
};

int axspi_read_rxq(struct axspi_data *ax_spi, void *data, int len);
int axspi_write_txq(const struct axspi_data *ax_spi, void *data, int len);
u16 axspi_read_reg(struct axspi_data *ax_spi, u8 reg);
int axspi_write_reg(struct axspi_data *ax_spi, u8 reg, u16 value);
int axspi_read_status(struct axspi_data *ax_spi, struct spi_status *status);
int axspi_wakeup(struct axspi_data *ax_spi);

static inline u16 AX_READ(struct axspi_data *ax_spi, u8 offset)
{
	return axspi_read_reg(ax_spi, offset);
}

static inline int AX_WRITE(struct axspi_data *ax_spi, u16 value, u8 offset)
{
	return axspi_write_reg(ax_spi, offset, value);
}

static inline int AX_READ_STATUS(struct axspi_data *ax_spi,
				 struct spi_status *status)
{
	return axspi_read_status(ax_spi, status);
}

static inline int AX_WAKEUP(struct axspi_data *ax_spi)
{
	return axspi_wakeup(ax_spi);
}
#endif

Annotation

• Immediate include surface: `linux/spi/spi.h`, `linux/types.h`.
• Detected declarations: `struct axspi_data`, `struct spi_status`, `function AX_READ`, `function AX_WRITE`, `function AX_READ_STATUS`, `function AX_WAKEUP`.
• 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.