| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef GVP11_H |
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| 3 | |
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| 4 | /* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $ |
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| 5 | * |
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| 6 | * Header file for the GVP Series II SCSI controller for Linux |
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| 7 | * |
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| 8 | * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info |
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| 9 | * based on a2091.h (C) 1993 by Hamish Macdonald |
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| 10 | * |
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| 11 | */ |
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| 12 | |
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| 13 | #include <linux/types.h> |
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| 14 | |
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| 15 | #ifndef CMD_PER_LUN |
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| 16 | #define CMD_PER_LUN 2 |
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| 17 | #endif |
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| 18 | |
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| 19 | #ifndef CAN_QUEUE |
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| 20 | #define CAN_QUEUE 16 |
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| 21 | #endif |
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| 22 | |
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| 23 | /* |
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| 24 | * if the transfer address ANDed with this results in a non-zero |
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| 25 | * result, then we can't use DMA. |
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| 26 | */ |
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| 27 | #define GVP11_XFER_MASK (0xff000001) |
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| 28 | |
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| 29 | struct gvp11_scsiregs { |
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| 30 | unsigned char pad1[64]; |
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| 31 | volatile unsigned short CNTR; |
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| 32 | unsigned char pad2[31]; |
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| 33 | volatile unsigned char SASR; |
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| 34 | unsigned char pad3; |
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| 35 | volatile unsigned char SCMD; |
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| 36 | unsigned char pad4[4]; |
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| 37 | volatile unsigned short BANK; |
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| 38 | unsigned char pad5[6]; |
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| 39 | volatile unsigned long ACR; |
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| 40 | volatile unsigned short secret1; /* store 0 here */ |
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| 41 | volatile unsigned short ST_DMA; |
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| 42 | volatile unsigned short SP_DMA; |
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| 43 | volatile unsigned short secret2; /* store 1 here */ |
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| 44 | volatile unsigned short secret3; /* store 15 here */ |
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| 45 | }; |
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| 46 | |
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| 47 | /* bits in CNTR */ |
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| 48 | #define GVP11_DMAC_BUSY (1<<0) |
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| 49 | #define GVP11_DMAC_INT_PENDING (1<<1) |
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| 50 | #define GVP11_DMAC_INT_ENABLE (1<<3) |
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| 51 | #define GVP11_DMAC_DIR_WRITE (1<<4) |
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| 52 | |
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| 53 | #endif /* GVP11_H */ |
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| 54 | |
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