diff options
Diffstat (limited to 'drivers/scsi/gvp11.h')
| -rw-r--r-- | drivers/scsi/gvp11.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/scsi/gvp11.h b/drivers/scsi/gvp11.h new file mode 100644 index 000000000..61c1a3584 --- /dev/null +++ b/drivers/scsi/gvp11.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef GVP11_H + +/* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $ + * + * Header file for the GVP Series II SCSI controller for Linux + * + * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info + * based on a2091.h (C) 1993 by Hamish Macdonald + * + */ + +#include <linux/types.h> + +#ifndef CMD_PER_LUN +#define CMD_PER_LUN 2 +#endif + +#ifndef CAN_QUEUE +#define CAN_QUEUE 16 +#endif + +/* + * if the transfer address ANDed with this results in a non-zero + * result, then we can't use DMA. + */ +#define GVP11_XFER_MASK (0xff000001) + +struct gvp11_scsiregs { + unsigned char pad1[64]; + volatile unsigned short CNTR; + unsigned char pad2[31]; + volatile unsigned char SASR; + unsigned char pad3; + volatile unsigned char SCMD; + unsigned char pad4[4]; + volatile unsigned short BANK; + unsigned char pad5[6]; + volatile unsigned long ACR; + volatile unsigned short secret1; /* store 0 here */ + volatile unsigned short ST_DMA; + volatile unsigned short SP_DMA; + volatile unsigned short secret2; /* store 1 here */ + volatile unsigned short secret3; /* store 15 here */ +}; + +/* bits in CNTR */ +#define GVP11_DMAC_BUSY (1<<0) +#define GVP11_DMAC_INT_PENDING (1<<1) +#define GVP11_DMAC_INT_ENABLE (1<<3) +#define GVP11_DMAC_DIR_WRITE (1<<4) + +#endif /* GVP11_H */ |