1 #ifndef A2091_H 2 #define A2091_H 3 4 /* $Id: a2091.h,v 1.4 1997/01/19 23:07:09 davem Exp $ 5 * 6 * Header file for the Commodore A2091 Zorro II SCSI controller for Linux 7 * 8 * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info 9 * 10 */ 11 12 #include <linux/types.h> 13 14 int a2091_detect(struct scsi_host_template *); 15 int a2091_release(struct Scsi_Host *); 16 const char *wd33c93_info(void); 17 int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); 18 int wd33c93_abort(Scsi_Cmnd *); 19 int wd33c93_reset(Scsi_Cmnd *, unsigned int); 20 21 #ifndef CMD_PER_LUN 22 #define CMD_PER_LUN 2 23 #endif 24 25 #ifndef CAN_QUEUE 26 #define CAN_QUEUE 16 27 #endif 28 29 /* 30 * if the transfer address ANDed with this results in a non-zero 31 * result, then we can't use DMA. 32 */ 33 #define A2091_XFER_MASK (0xff000001) 34 35 typedef struct { 36 unsigned char pad1[64]; 37 volatile unsigned short ISTR; 38 volatile unsigned short CNTR; 39 unsigned char pad2[60]; 40 volatile unsigned int WTC; 41 volatile unsigned long ACR; 42 unsigned char pad3[6]; 43 volatile unsigned short DAWR; 44 unsigned char pad4; 45 volatile unsigned char SASR; 46 unsigned char pad5; 47 volatile unsigned char SCMD; 48 unsigned char pad6[76]; 49 volatile unsigned short ST_DMA; 50 volatile unsigned short SP_DMA; 51 volatile unsigned short CINT; 52 unsigned char pad7[2]; 53 volatile unsigned short FLUSH; 54 } a2091_scsiregs; 55 56 #define DAWR_A2091 (3) 57 58 /* CNTR bits. */ 59 #define CNTR_TCEN (1<<7) 60 #define CNTR_PREST (1<<6) 61 #define CNTR_PDMD (1<<5) 62 #define CNTR_INTEN (1<<4) 63 #define CNTR_DDIR (1<<3) 64 65 /* ISTR bits. */ 66 #define ISTR_INTX (1<<8) 67 #define ISTR_INT_F (1<<7) 68 #define ISTR_INTS (1<<6) 69 #define ISTR_E_INT (1<<5) 70 #define ISTR_INT_P (1<<4) 71 #define ISTR_UE_INT (1<<3) 72 #define ISTR_OE_INT (1<<2) 73 #define ISTR_FF_FLG (1<<1) 74 #define ISTR_FE_FLG (1<<0) 75 76 #endif /* A2091_H */ 77