drivers/staging/media/atomisp/pci/css_2401_system/ibuf_ctrl_global.h

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/css_2401_system/ibuf_ctrl_global.h

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/css_2401_system/ibuf_ctrl_global.h
Extension
.h
Size
1824 bytes
Lines
72
Domain
Driver Families
Bucket
drivers/staging
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	isp2401_ib_buffer_s {
	u32	start_addr;	/* start address of the buffer in the
					 * "input-buffer hardware block"
					 */

	u32	stride;		/* stride per buffer line (in bytes) */
	u32	lines;		/* lines in the buffer */
};
typedef struct isp2401_ib_buffer_s	isp2401_ib_buffer_t;

typedef struct ibuf_ctrl_cfg_s ibuf_ctrl_cfg_t;
struct ibuf_ctrl_cfg_s {
	bool online;

	struct {
		/* DMA configuration */
		u32 channel;
		u32 cmd; /* must be _DMA_V2_MOVE_A2B_NO_SYNC_CHK_COMMAND */

		/* DMA reconfiguration */
		u32 shift_returned_items;
		u32 elems_per_word_in_ibuf;
		u32 elems_per_word_in_dest;
	} dma_cfg;

	isp2401_ib_buffer_t ib_buffer;

	struct {
		u32 stride;
		u32 start_addr;
		u32 lines;
	} dest_buf_cfg;

	u32 items_per_store;
	u32 stores_per_frame;

	struct {
		u32 sync_cmd;	/* must be _STREAM2MMIO_CMD_TOKEN_SYNC_FRAME */
		u32 store_cmd;	/* must be _STREAM2MMIO_CMD_TOKEN_STORE_PACKETS */
	} stream2mmio_cfg;
};

extern const u32 N_IBUF_CTRL_PROCS[N_IBUF_CTRL_ID];

#endif /* __IBUF_CTRL_GLOBAL_H_INCLUDED__ */

Annotation

Implementation Notes