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DataMuseum.dkPresents historical artifacts from the history of: ICL Comet 32 |
This is an automatic "excavation" of a thematic subset of
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Length: 1612 (0x64c)
Types: TextFile
Notes: UNIX file
Names: »wdsaio.h«
└─⟦26887b7e0⟧ Bits:30009717 Comet 32 harddisk image
└─⟦28c352965⟧ »/a« UNIX Filesystem
└─⟦this⟧ »usr/include/sys/wdsaio.h«
/*
* Definitions for standalone winchester driver. Somebody should
* probably write a standalone tape driver and make a common sasi
* header file. It ain't me...
*/
/* physical device addresses */
#define BADR(n) ((unsigned char *)(n))
#define WD_SASIDATA BADR(0xfff8a0)
#define WD_SASIIN BADR(0xfff8a2)
#define WD_SASIOUT BADR(0xfff8a4)
/* bus signals driven by controller (target) */
#define BUS_BSY (1<<0)
#define BUS_MSG (1<<1)
#define BUS_CD (1<<2)
#define BUS_REQ (1<<3)
#define BUS_IO (1<<4)
/* bus signals driven by us (initiator) */
#define BUS_ACK (1<<0)
#define BUS_RST (1<<1)
#define BUS_SEL (1<<2)
/* disk controller id used in selection phase */
#define IDBITS 0x01
/* bits in completion status byte */
#define STAT_CHECK (1<<1)
#define STAT_BUSY (1<<3)
/* bus phases */
#define PH_FREE 0
#define PH_SELECT 1
#define PH_COMMAND 2
#define PH_DATAIN 3
#define PH_DATAOUT 4
#define PH_STATUS 5
#define PH_MESSAGE 6
#define PH_COMPLETE 7
/* commands */
#define WDC_TESTUNIT 0x00
#define WDC_REZERO 0x01
#define WDC_REQSENSE 0x03
#define WDC_FORMAT 0x04
#define WDC_READ 0x08
#define WDC_WRITE 0x0a
#define WDC_SEEK 0x0b
#define WDC_TRANSLATE 0x0f
#define WDC_INQUIRY 0x12
#define WDC_MODESEL 0x15
#define WDC_RESUNIT 0x16
#define WDC_RELUNIT 0x17
#define WDC_MODESENSE 0x1a
#define WDC_START 0x1b
#define WDC_READCAP 0x25
#define WDC_XREAD 0x28
#define WDC_XWRITE 0x2a
#define WDC_WVERIFY 0x2e
#define WDC_VERIFY 0x2f
/* stuff from sense bytes */
struct wdsense {
char wds_class;
char wds_code;
int wds_block;
};
/* a dummy buf structure */
struct buf { int zorkmid; };