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