| #ifndef A3000_H |
| #define A3000_H |
| |
| /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $ |
| * |
| * Header file for the Amiga 3000 built-in SCSI controller for Linux |
| * |
| * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info |
| * |
| */ |
| |
| #include <linux/types.h> |
| |
| #ifndef CMD_PER_LUN |
| #define CMD_PER_LUN 2 |
| #endif |
| |
| #ifndef CAN_QUEUE |
| #define CAN_QUEUE 16 |
| #endif |
| |
| /* |
| * if the transfer address ANDed with this results in a non-zero |
| * result, then we can't use DMA. |
| */ |
| #define A3000_XFER_MASK (0x00000003) |
| |
| struct a3000_scsiregs { |
| unsigned char pad1[2]; |
| volatile unsigned short DAWR; |
| volatile unsigned int WTC; |
| unsigned char pad2[2]; |
| volatile unsigned short CNTR; |
| volatile unsigned long ACR; |
| unsigned char pad3[2]; |
| volatile unsigned short ST_DMA; |
| unsigned char pad4[2]; |
| volatile unsigned short FLUSH; |
| unsigned char pad5[2]; |
| volatile unsigned short CINT; |
| unsigned char pad6[2]; |
| volatile unsigned short ISTR; |
| unsigned char pad7[30]; |
| volatile unsigned short SP_DMA; |
| unsigned char pad8; |
| volatile unsigned char SASR; |
| unsigned char pad9; |
| volatile unsigned char SCMD; |
| }; |
| |
| #define DAWR_A3000 (3) |
| |
| /* CNTR bits. */ |
| #define CNTR_TCEN (1<<5) |
| #define CNTR_PREST (1<<4) |
| #define CNTR_PDMD (1<<3) |
| #define CNTR_INTEN (1<<2) |
| #define CNTR_DDIR (1<<1) |
| #define CNTR_IO_DX (1<<0) |
| |
| /* 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 /* A3000_H */ |