1 #ifndef A3000_H 2 #define A3000_H 3 4 /* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $ 5 * 6 * Header file for the Amiga 3000 built-in SCSI controller for Linux 7 * 8 * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info 9 * 10 */ 11 12 #include <linux/types.h> 13 14 int a3000_detect(struct scsi_host_template *); 15 int a3000_release(struct Scsi_Host *); 16 17 #ifndef CMD_PER_LUN 18 #define CMD_PER_LUN 2 19 #endif 20 21 #ifndef CAN_QUEUE 22 #define CAN_QUEUE 16 23 #endif 24 25 /* 26 * if the transfer address ANDed with this results in a non-zero 27 * result, then we can't use DMA. 28 */ 29 #define A3000_XFER_MASK (0x00000003) 30 31 typedef struct { 32 unsigned char pad1[2]; 33 volatile unsigned short DAWR; 34 volatile unsigned int WTC; 35 unsigned char pad2[2]; 36 volatile unsigned short CNTR; 37 volatile unsigned long ACR; 38 unsigned char pad3[2]; 39 volatile unsigned short ST_DMA; 40 unsigned char pad4[2]; 41 volatile unsigned short FLUSH; 42 unsigned char pad5[2]; 43 volatile unsigned short CINT; 44 unsigned char pad6[2]; 45 volatile unsigned short ISTR; 46 unsigned char pad7[30]; 47 volatile unsigned short SP_DMA; 48 unsigned char pad8; 49 volatile unsigned char SASR; 50 unsigned char pad9; 51 volatile unsigned char SCMD; 52 } a3000_scsiregs; 53 54 #define DAWR_A3000 (3) 55 56 /* CNTR bits. */ 57 #define CNTR_TCEN (1<<5) 58 #define CNTR_PREST (1<<4) 59 #define CNTR_PDMD (1<<3) 60 #define CNTR_INTEN (1<<2) 61 #define CNTR_DDIR (1<<1) 62 #define CNTR_IO_DX (1<<0) 63 64 /* ISTR bits. */ 65 #define ISTR_INTX (1<<8) 66 #define ISTR_INT_F (1<<7) 67 #define ISTR_INTS (1<<6) 68 #define ISTR_E_INT (1<<5) 69 #define ISTR_INT_P (1<<4) 70 #define ISTR_UE_INT (1<<3) 71 #define ISTR_OE_INT (1<<2) 72 #define ISTR_FF_FLG (1<<1) 73 #define ISTR_FE_FLG (1<<0) 74 75 #endif /* A3000_H */ 76