drivers/scsi/a2091.h

Source file repositories/reference/linux-study-clean/drivers/scsi/a2091.h

File Facts

System
Linux kernel
Corpus path
drivers/scsi/a2091.h
Extension
.h
Size
1558 bytes
Lines
71
Domain
Driver Families
Bucket
drivers/scsi
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 a2091_scsiregs {
		 unsigned char	pad1[64];
	volatile unsigned short	ISTR;
	volatile unsigned short	CNTR;
		 unsigned char	pad2[60];
	volatile unsigned int	WTC;
	volatile unsigned long	ACR;
		 unsigned char	pad3[6];
	volatile unsigned short	DAWR;
		 unsigned char	pad4;
	volatile unsigned char	SASR;
		 unsigned char	pad5;
	volatile unsigned char	SCMD;
		 unsigned char	pad6[76];
	volatile unsigned short	ST_DMA;
	volatile unsigned short	SP_DMA;
	volatile unsigned short	CINT;
		 unsigned char	pad7[2];
	volatile unsigned short	FLUSH;
};

#define DAWR_A2091		(3)

/* CNTR bits. */
#define CNTR_TCEN		(1<<7)
#define CNTR_PREST		(1<<6)
#define CNTR_PDMD		(1<<5)
#define CNTR_INTEN		(1<<4)
#define CNTR_DDIR		(1<<3)

/* ISTR bits. */
#define ISTR_INTX		(1<<8)
#define ISTR_INT_F		(1<<7)
#define ISTR_INTS		(1<<6)
#define ISTR_E_INT		(1<<5)
#define ISTR_INT_P		(1<<4)
#define ISTR_UE_INT		(1<<3)
#define ISTR_OE_INT		(1<<2)
#define ISTR_FF_FLG		(1<<1)
#define ISTR_FE_FLG		(1<<0)

#endif /* A2091_H */

Annotation

Implementation Notes