drivers/soc/fsl/dpio/dpio.h

Source file repositories/reference/linux-study-clean/drivers/soc/fsl/dpio/dpio.h

File Facts

System
Linux kernel
Corpus path
drivers/soc/fsl/dpio/dpio.h
Extension
.h
Size
2476 bytes
Lines
95
Domain
Driver Families
Bucket
drivers/soc
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 dpio_cfg {
	enum dpio_channel_mode	channel_mode;
	u8		num_priorities;
};

int dpio_enable(struct fsl_mc_io	*mc_io,
		u32		cmd_flags,
		u16		token);

int dpio_disable(struct fsl_mc_io	*mc_io,
		 u32		cmd_flags,
		 u16		token);

/**
 * struct dpio_attr - Structure representing DPIO attributes
 * @id: DPIO object ID
 * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
 * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
 * @qbman_portal_id: Software portal ID
 * @channel_mode: Notification channel mode
 * @num_priorities: Number of priorities for the notification channel (1-8);
 *			relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
 * @qbman_version: QBMAN version
 * @clk: QBMAN clock frequency value in Hz
 */
struct dpio_attr {
	int			id;
	u64		qbman_portal_ce_offset;
	u64		qbman_portal_ci_offset;
	u16		qbman_portal_id;
	enum dpio_channel_mode	channel_mode;
	u8			num_priorities;
	u32		qbman_version;
	u32		clk;
};

int dpio_get_attributes(struct fsl_mc_io	*mc_io,
			u32		cmd_flags,
			u16		token,
			struct dpio_attr	*attr);

int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
				  u32 cmd_flags,
				  u16 token,
				  u8 dest);

int dpio_get_api_version(struct fsl_mc_io *mc_io,
			 u32 cmd_flags,
			 u16 *major_ver,
			 u16 *minor_ver);

int dpio_reset(struct fsl_mc_io	*mc_io,
	       u32 cmd_flags,
	       u16 token);

#endif /* __FSL_DPIO_H */

Annotation

Implementation Notes