projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef A2091_H |
| 2 | #define A2091_H | |
| 3 | ||
| 4 | /* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $ | |
| 5 | * | |
| 6 | * Header file for the Commodore A2091 Zorro II SCSI controller for Linux | |
| 7 | * | |
| 8 | * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/types.h> | |
| 13 | ||
| 1da177e4 | 14 | #ifndef CMD_PER_LUN |
| 09bc85b0 | 15 | #define CMD_PER_LUN 2 |
| 1da177e4 LT |
16 | #endif |
| 17 | ||
| 18 | #ifndef CAN_QUEUE | |
| 09bc85b0 | 19 | #define CAN_QUEUE 16 |
| 1da177e4 LT |
20 | #endif |
| 21 | ||
| 22 | /* | |
| 23 | * if the transfer address ANDed with this results in a non-zero | |
| 24 | * result, then we can't use DMA. | |
| 25 | */ | |
| 09bc85b0 | 26 | #define A2091_XFER_MASK (0xff000001) |
| 1da177e4 | 27 | |
| 56522e39 | 28 | struct a2091_scsiregs { |
| 09bc85b0 GU |
29 | unsigned char pad1[64]; |
| 30 | volatile unsigned short ISTR; | |
| 31 | volatile unsigned short CNTR; | |
| 32 | unsigned char pad2[60]; | |
| 33 | volatile unsigned int WTC; | |
| 34 | volatile unsigned long ACR; | |
| 35 | unsigned char pad3[6]; | |
| 36 | volatile unsigned short DAWR; | |
| 37 | unsigned char pad4; | |
| 38 | volatile unsigned char SASR; | |
| 39 | unsigned char pad5; | |
| 40 | volatile unsigned char SCMD; | |
| 41 | unsigned char pad6[76]; | |
| 42 | volatile unsigned short ST_DMA; | |
| 43 | volatile unsigned short SP_DMA; | |
| 44 | volatile unsigned short CINT; | |
| 45 | unsigned char pad7[2]; | |
| 46 | volatile unsigned short FLUSH; | |
| 56522e39 | 47 | }; |
| 1da177e4 LT |
48 | |
| 49 | #define DAWR_A2091 (3) | |
| 50 | ||
| 51 | /* CNTR bits. */ | |
| 52 | #define CNTR_TCEN (1<<7) | |
| 53 | #define CNTR_PREST (1<<6) | |
| 54 | #define CNTR_PDMD (1<<5) | |
| 55 | #define CNTR_INTEN (1<<4) | |
| 56 | #define CNTR_DDIR (1<<3) | |
| 57 | ||
| 58 | /* ISTR bits. */ | |
| 59 | #define ISTR_INTX (1<<8) | |
| 60 | #define ISTR_INT_F (1<<7) | |
| 61 | #define ISTR_INTS (1<<6) | |
| 62 | #define ISTR_E_INT (1<<5) | |
| 63 | #define ISTR_INT_P (1<<4) | |
| 64 | #define ISTR_UE_INT (1<<3) | |
| 65 | #define ISTR_OE_INT (1<<2) | |
| 66 | #define ISTR_FF_FLG (1<<1) | |
| 67 | #define ISTR_FE_FLG (1<<0) | |
| 68 | ||
| 69 | #endif /* A2091_H */ |