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73 lines
1.6 KiB
73 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef A3000_H |
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#define A3000_H |
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/* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $ |
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* |
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* Header file for the Amiga 3000 built-in SCSI controller for Linux |
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* |
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* Written and (C) 1993, Hamish Macdonald, see a3000.c for more info |
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* |
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*/ |
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#include <linux/types.h> |
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#ifndef CMD_PER_LUN |
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#define CMD_PER_LUN 2 |
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#endif |
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#ifndef CAN_QUEUE |
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#define CAN_QUEUE 16 |
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#endif |
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/* |
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* if the transfer address ANDed with this results in a non-zero |
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* result, then we can't use DMA. |
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*/ |
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#define A3000_XFER_MASK (0x00000003) |
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struct a3000_scsiregs { |
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unsigned char pad1[2]; |
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volatile unsigned short DAWR; |
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volatile unsigned int WTC; |
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unsigned char pad2[2]; |
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volatile unsigned short CNTR; |
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volatile unsigned long ACR; |
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unsigned char pad3[2]; |
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volatile unsigned short ST_DMA; |
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unsigned char pad4[2]; |
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volatile unsigned short FLUSH; |
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unsigned char pad5[2]; |
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volatile unsigned short CINT; |
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unsigned char pad6[2]; |
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volatile unsigned short ISTR; |
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unsigned char pad7[30]; |
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volatile unsigned short SP_DMA; |
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unsigned char pad8; |
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volatile unsigned char SASR; |
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unsigned char pad9; |
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volatile unsigned char SCMD; |
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}; |
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#define DAWR_A3000 (3) |
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/* CNTR bits. */ |
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#define CNTR_TCEN (1<<5) |
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#define CNTR_PREST (1<<4) |
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#define CNTR_PDMD (1<<3) |
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#define CNTR_INTEN (1<<2) |
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#define CNTR_DDIR (1<<1) |
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#define CNTR_IO_DX (1<<0) |
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/* ISTR bits. */ |
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#define ISTR_INTX (1<<8) |
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#define ISTR_INT_F (1<<7) |
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#define ISTR_INTS (1<<6) |
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#define ISTR_E_INT (1<<5) |
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#define ISTR_INT_P (1<<4) |
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#define ISTR_UE_INT (1<<3) |
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#define ISTR_OE_INT (1<<2) |
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#define ISTR_FF_FLG (1<<1) |
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#define ISTR_FE_FLG (1<<0) |
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#endif /* A3000_H */
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