| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|
| 2 | #ifndef A3000_H |
|---|
| 3 | #define A3000_H |
|---|
| 4 | |
|---|
| 5 | /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $ |
|---|
| 6 | * |
|---|
| 7 | * Header file for the Amiga 3000 built-in SCSI controller for Linux |
|---|
| 8 | * |
|---|
| 9 | * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info |
|---|
| 10 | * |
|---|
| 11 | */ |
|---|
| 12 | |
|---|
| 13 | #include <linux/types.h> |
|---|
| 14 | |
|---|
| 15 | #ifndef CMD_PER_LUN |
|---|
| 16 | #define CMD_PER_LUN 2 |
|---|
| 17 | #endif |
|---|
| 18 | |
|---|
| 19 | #ifndef CAN_QUEUE |
|---|
| 20 | #define CAN_QUEUE 16 |
|---|
| 21 | #endif |
|---|
| 22 | |
|---|
| 23 | /* |
|---|
| 24 | * if the transfer address ANDed with this results in a non-zero |
|---|
| 25 | * result, then we can't use DMA. |
|---|
| 26 | */ |
|---|
| 27 | #define A3000_XFER_MASK (0x00000003) |
|---|
| 28 | |
|---|
| 29 | struct a3000_scsiregs { |
|---|
| 30 | unsigned char pad1[2]; |
|---|
| 31 | volatile unsigned short DAWR; |
|---|
| 32 | volatile unsigned int WTC; |
|---|
| 33 | unsigned char pad2[2]; |
|---|
| 34 | volatile unsigned short CNTR; |
|---|
| 35 | volatile unsigned long ACR; |
|---|
| 36 | unsigned char pad3[2]; |
|---|
| 37 | volatile unsigned short ST_DMA; |
|---|
| 38 | unsigned char pad4[2]; |
|---|
| 39 | volatile unsigned short FLUSH; |
|---|
| 40 | unsigned char pad5[2]; |
|---|
| 41 | volatile unsigned short CINT; |
|---|
| 42 | unsigned char pad6[2]; |
|---|
| 43 | volatile unsigned short ISTR; |
|---|
| 44 | unsigned char pad7[30]; |
|---|
| 45 | volatile unsigned short SP_DMA; |
|---|
| 46 | unsigned char pad8; |
|---|
| 47 | volatile unsigned char SASR; |
|---|
| 48 | unsigned char pad9; |
|---|
| 49 | volatile unsigned char SCMD; |
|---|
| 50 | }; |
|---|
| 51 | |
|---|
| 52 | #define DAWR_A3000 (3) |
|---|
| 53 | |
|---|
| 54 | /* CNTR bits. */ |
|---|
| 55 | #define CNTR_TCEN (1<<5) |
|---|
| 56 | #define CNTR_PREST (1<<4) |
|---|
| 57 | #define CNTR_PDMD (1<<3) |
|---|
| 58 | #define CNTR_INTEN (1<<2) |
|---|
| 59 | #define CNTR_DDIR (1<<1) |
|---|
| 60 | #define CNTR_IO_DX (1<<0) |
|---|
| 61 | |
|---|
| 62 | /* ISTR bits. */ |
|---|
| 63 | #define ISTR_INTX (1<<8) |
|---|
| 64 | #define ISTR_INT_F (1<<7) |
|---|
| 65 | #define ISTR_INTS (1<<6) |
|---|
| 66 | #define ISTR_E_INT (1<<5) |
|---|
| 67 | #define ISTR_INT_P (1<<4) |
|---|
| 68 | #define ISTR_UE_INT (1<<3) |
|---|
| 69 | #define ISTR_OE_INT (1<<2) |
|---|
| 70 | #define ISTR_FF_FLG (1<<1) |
|---|
| 71 | #define ISTR_FE_FLG (1<<0) |
|---|
| 72 | |
|---|
| 73 | #endif /* A3000_H */ |
|---|
| 74 | |
|---|
