drivers/net/fjes/fjes_regs.h

Source file repositories/reference/linux-study-clean/drivers/net/fjes/fjes_regs.h

File Facts

System
Linux kernel
Corpus path
drivers/net/fjes/fjes_regs.h
Extension
.h
Size
2935 bytes
Lines
128
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef FJES_REGS_H_
#define FJES_REGS_H_

#include <linux/bitops.h>

#define XSCT_DEVICE_REGISTER_SIZE 0x1000

/* register offset */
/* Information registers */
#define XSCT_OWNER_EPID     0x0000  /* Owner EPID */
#define XSCT_MAX_EP         0x0004  /* Maximum EP */

/* Device Control registers */
#define XSCT_DCTL           0x0010  /* Device Control */

/* Command Control registers */
#define XSCT_CR             0x0020  /* Command request */
#define XSCT_CS             0x0024  /* Command status */
#define XSCT_SHSTSAL        0x0028  /* Share status address Low */
#define XSCT_SHSTSAH        0x002C  /* Share status address High */

#define XSCT_REQBL          0x0034  /* Request Buffer length */
#define XSCT_REQBAL         0x0038  /* Request Buffer Address Low */
#define XSCT_REQBAH         0x003C  /* Request Buffer Address High */

#define XSCT_RESPBL         0x0044  /* Response Buffer Length */
#define XSCT_RESPBAL        0x0048  /* Response Buffer Address Low */
#define XSCT_RESPBAH        0x004C  /* Response Buffer Address High */

/* Interrupt Control registers */
#define XSCT_IS             0x0080  /* Interrupt status */
#define XSCT_IMS            0x0084  /* Interrupt mask set */
#define XSCT_IMC            0x0088  /* Interrupt mask clear */
#define XSCT_IG             0x008C  /* Interrupt generator */
#define XSCT_ICTL           0x0090  /* Interrupt control */

/* register structure */
/* Information registers */
union REG_OWNER_EPID {
	struct {
		__le32 epid:16;
		__le32:16;
	} bits;
	__le32 reg;
};

union REG_MAX_EP {
	struct {
		__le32 maxep:16;
		__le32:16;
	} bits;
	__le32 reg;
};

/* Device Control registers */
union REG_DCTL {
	struct {
		__le32 reset:1;
		__le32 rsv0:15;
		__le32 rsv1:16;
	} bits;
	__le32 reg;
};

/* Command Control registers */
union REG_CR {
	struct {
		__le32 req_code:16;
		__le32 err_info:14;
		__le32 error:1;
		__le32 req_start:1;
	} bits;
	__le32 reg;
};

union REG_CS {
	struct {
		__le32 req_code:16;
		__le32 rsv0:14;
		__le32 busy:1;
		__le32 complete:1;
	} bits;
	__le32 reg;
};

/* Interrupt Control registers */
union REG_ICTL {
	struct {
		__le32 automak:1;
		__le32 rsv0:31;

Annotation

Implementation Notes