diff options
Diffstat (limited to 'drivers/scsi/a2091.h')
| -rw-r--r-- | drivers/scsi/a2091.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/scsi/a2091.h b/drivers/scsi/a2091.h new file mode 100644 index 000000000..9067f6d97 --- /dev/null +++ b/drivers/scsi/a2091.h @@ -0,0 +1,107 @@ +#ifndef A2091_H + +/* $Id: a2091.h,v 1.4 1996/04/25 20:57:48 root Exp root $ + * + * Header file for the Commodore A2091 Zorro II SCSI controller for Linux + * + * Written and (C) 1993, Hamish Macdonald, see a2091.c for more info + * + */ + +#include <linux/types.h> + +int a2091_detect(Scsi_Host_Template *); +const char *wd33c93_info(void); +int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); +int wd33c93_abort(Scsi_Cmnd *); +int wd33c93_reset(Scsi_Cmnd *, unsigned int); + +#ifndef NULL +#define NULL 0 +#endif + +#ifndef CMD_PER_LUN +#define CMD_PER_LUN 2 +#endif + +#ifndef CAN_QUEUE +#define CAN_QUEUE 16 +#endif + +#ifdef HOSTS_C + +extern struct proc_dir_entry proc_scsi_a2091; + +#define A2091_SCSI { /* next */ NULL, \ + /* usage_count */ NULL, \ + /* proc_dir_entry */ &proc_scsi_a2091, \ + /* proc_info */ NULL, \ + /* name */ "Commodore A2091/A590 SCSI", \ + /* detect */ a2091_detect, \ + /* release */ NULL, \ + /* info */ NULL, \ + /* command */ NULL, \ + /* queuecommand */ wd33c93_queuecommand, \ + /* abort */ wd33c93_abort, \ + /* reset */ wd33c93_reset, \ + /* slave_attach */ NULL, \ + /* bios_param */ NULL, \ + /* can_queue */ CAN_QUEUE, \ + /* this_id */ 7, \ + /* sg_tablesize */ SG_ALL, \ + /* cmd_per_lun */ CMD_PER_LUN, \ + /* present */ 0, \ + /* unchecked_isa_dma */ 0, \ + /* use_clustering */ DISABLE_CLUSTERING } +#else + +/* + * if the transfer address ANDed with this results in a non-zero + * result, then we can't use DMA. + */ +#define A2091_XFER_MASK (0xff000001) + +typedef struct { + unsigned char pad1[64]; + volatile unsigned short ISTR; + volatile unsigned short CNTR; + unsigned char pad2[60]; + volatile unsigned int WTC; + volatile unsigned long ACR; + unsigned char pad3[6]; + volatile unsigned short DAWR; + unsigned char pad4; + volatile unsigned char SASR; + unsigned char pad5; + volatile unsigned char SCMD; + unsigned char pad6[76]; + volatile unsigned short ST_DMA; + volatile unsigned short SP_DMA; + volatile unsigned short CINT; + unsigned char pad7[2]; + volatile unsigned short FLUSH; +} a2091_scsiregs; + +#define DAWR_A2091 (3) + +/* CNTR bits. */ +#define CNTR_TCEN (1<<7) +#define CNTR_PREST (1<<6) +#define CNTR_PDMD (1<<5) +#define CNTR_INTEN (1<<4) +#define CNTR_DDIR (1<<3) + +/* ISTR bits. */ +#define ISTR_INTX (1<<8) +#define ISTR_INT_F (1<<7) +#define ISTR_INTS (1<<6) +#define ISTR_E_INT (1<<5) +#define ISTR_INT_P (1<<4) +#define ISTR_UE_INT (1<<3) +#define ISTR_OE_INT (1<<2) +#define ISTR_FF_FLG (1<<1) +#define ISTR_FE_FLG (1<<0) + +#endif /* else def HOSTS_C */ + +#endif /* A2091_H */ |