2001/1022/port/sd.h (diff list | history)

port/sd.h on 2000/0506
2000/0506		/* * Storage Device. */ typedef struct SDev SDev; typedef struct SDifc SDifc; typedef struct SDpart SDpart;
2000/0706		typedef struct SDperm SDperm;
2000/0506		typedef struct SDreq SDreq; typedef struct SDunit SDunit;
2000/0706		typedef struct SDperm {
2001/1022		char* name; char* user;
2000/0506		ulong perm;
2000/0706		} SDperm; typedef struct SDpart { ulong start; ulong end; SDperm;
2000/0506		int valid;
2000/0617		ulong vers;
2000/0506		} SDpart; typedef struct SDunit { SDev* dev; int subno; uchar inquiry[256]; /* format follows SCSI spec */
2000/0706		SDperm;
2000/0506		Rendez rendez; QLock ctl; ulong sectors; ulong secsize;
2000/0809		SDpart* part; /* nil or array of size npart */ int npart;
2000/0617		ulong vers;
2000/0706		SDperm ctlperm;
2000/0506
2001/1022		QLock raw; /* raw read or write in progress */
2000/0531		Lock rawinuse; /* really just a test-and-set */
2000/0506		int state; SDreq* req;
2000/0706		SDperm rawperm;
2000/1129
2001/1022		Log log;
2000/0506		} SDunit;
2001/0905		/*
2001/1022		* Each controller is represented by a SDev. * Each controller is responsible for allocating its unit structures. * Each controller has at least one unit. */
2000/0506		typedef struct SDev {
2001/1022		Ref r; /* Number of callers using device */
2000/0506		SDifc* ifc; /* pnp/legacy */
2001/1022		void* ctlr;
2000/0506		int idno;
2001/1022		char* name;
2000/0506		SDev* next; QLock; /* enable/disable */ int enabled;
2001/1022		int nunit; /* Number of units */
2001/0905		QLock unitlock; /* `Loading' of units */
2001/1022		int* unitflg; /* Unit flags */ SDunit**unit;
2000/0506		} SDev; typedef struct SDifc { char* name; SDev* (*pnp)(void); SDev* (*legacy)(int, int); SDev* (*id)(SDev*); int (*enable)(SDev*); int (*disable)(SDev*); int (*verify)(SDunit*); int (*online)(SDunit*); int (*rio)(SDreq*); int (*rctl)(SDunit*, char*, int); int (*wctl)(SDunit*, Cmdbuf*); long (*bio)(SDunit*, int, int, void*, long, long);
2001/1022		SDev* (*probe)(DevConf*); void (*clear)(SDev*);
2001/0905		char* (*stat)(SDev*, char*, char*);
2000/0506		} SDifc; typedef struct SDreq { SDunit* unit; int lun; int write; uchar cmd[16]; int clen; void* data; int dlen; int flags; int status; long rlen; uchar sense[256]; } SDreq; enum { SDnosense = 0x00000001, SDvalidsense = 0x00010000, }; enum {
2000/0607		SDretry = -5, /* internal to controllers */
2000/0506		SDmalloc = -4, SDeio = -3, SDtimeout = -2, SDnostatus = -1, SDok = 0, SDcheck = 0x02, /* check condition */ SDbusy = 0x08, /* busy */ SDmaxio = 2048*1024, SDnpart = 16, }; #define sdmalloc(n) malloc(n) #define sdfree(p) free(p) /* sdscsi.c */ extern int scsiverify(SDunit*); extern int scsionline(SDunit*); extern long scsibio(SDunit*, int, int, void*, long, long); extern SDev* scsiid(SDev*, SDifc*);