| 1 |
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| 2 | #ifndef A3000_H
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| 3 | #define A3000_H
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| 4 |
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| 5 | |
| 6 | *
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| 7 | * Header file for the Amiga 3000 built-in SCSI controller for Linux
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| 8 | *
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| 9 | * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
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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 | |
| 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 A3000_XFER_MASK (0x00000003)
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| 28 |
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| 29 | struct a3000_scsiregs {
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| 30 | unsigned char pad1[2];
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| 31 | volatile unsigned short DAWR;
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| 32 | volatile unsigned int WTC;
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| 33 | unsigned char pad2[2];
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| 34 | volatile unsigned short CNTR;
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| 35 | volatile unsigned long ACR;
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| 36 | unsigned char pad3[2];
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| 37 | volatile unsigned short ST_DMA;
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| 38 | unsigned char pad4[2];
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| 39 | volatile unsigned short FLUSH;
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| 40 | unsigned char pad5[2];
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| 41 | volatile unsigned short CINT;
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| 42 | unsigned char pad6[2];
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| 43 | volatile unsigned short ISTR;
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| 44 | unsigned char pad7[30];
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| 45 | volatile unsigned short SP_DMA;
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| 46 | unsigned char pad8;
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| 47 | volatile unsigned char SASR;
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| 48 | unsigned char pad9;
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| 49 | volatile unsigned char SCMD;
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| 50 | };
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| 51 |
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| 52 | #define DAWR_A3000 (3)
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| 53 |
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| 54 |
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| 55 | #define CNTR_TCEN (1<<5)
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| 56 | #define CNTR_PREST (1<<4)
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| 57 | #define CNTR_PDMD (1<<3)
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| 58 | #define CNTR_INTEN (1<<2)
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| 59 | #define CNTR_DDIR (1<<1)
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| 60 | #define CNTR_IO_DX (1<<0)
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| 61 |
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| 62 |
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| 63 | #define ISTR_INTX (1<<8)
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| 64 | #define ISTR_INT_F (1<<7)
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| 65 | #define ISTR_INTS (1<<6)
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| 66 | #define ISTR_E_INT (1<<5)
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| 67 | #define ISTR_INT_P (1<<4)
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| 68 | #define ISTR_UE_INT (1<<3)
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| 69 | #define ISTR_OE_INT (1<<2)
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| 70 | #define ISTR_FF_FLG (1<<1)
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| 71 | #define ISTR_FE_FLG (1<<0)
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| 72 |
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| 73 | #endif
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