1992/0609/power/devhotrod.c (diff list | history)

1990/1013/sys/src/9/power/devhotrod.c:14,20 – 1990/1018/sys/src/9/power/devhotrod.c:14,20 (short | long)
1990/1013		enum { Vmevec= 0xd2, /* vme vector for interrupts */ Intlevel= 5, /* level to interrupt on */ Nhotrod= 1,
1990/1018		Nhotrod= 2,
1990/1013		}; /*
1990/1013/sys/src/9/power/devhotrod.c:24,32 – 1990/1018/sys/src/9/power/devhotrod.c:24,32
1990/1013		* and 0xB00000 to 0xBFFFFF in A24 space */ struct Device { uchar mem[1*1024*1024];
1990/1018		ulong mem[1024*1024/sizeof(ulong)];
1990/1013		}; #define HOTROD VMEA32SUP(Device, 0x30000000)
1990/1018		#define HOTROD VMEA24SUP(Device, 0xB00000)
1990/1013		struct Hotrod { QLock;
1990/1013/sys/src/9/power/devhotrod.c:56,62 – 1990/1018/sys/src/9/power/devhotrod.c:56,62
1990/1013		hotrodreset(void) { int i; Hsvme *hp;
1990/1018		Hotrod *hp;
1990/1013		for(i=0; i<Nhotrod; i++){ hotrod[i].addr = HOTROD+i;
1990/1013/sys/src/9/power/devhotrod.c:116,123 – 1990/1018/sys/src/9/power/devhotrod.c:116,122
1990/1013		if(c->qid == CHDIR){ if(omode != OREAD) error(0, Eperm); }else streamopen(c, &hotrodinfo);
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN; c->offset = 0;
1990/1013/sys/src/9/power/devhotrod.c:143,149 – 1990/1018/sys/src/9/power/devhotrod.c:142,160
1990/1013		{ Hotrod *hp; Device *dp;
1990/1018		ulong *from; ulong *to; ulong *end;
1990/1013
1990/1018		if(c->qid&CHDIR) return devdirread(c, buf, n, 0, 0, hotrodgen); /* * allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1))) error(0, Ebadarg);
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr; if(c->offset >= sizeof(dp->mem))
1990/1013/sys/src/9/power/devhotrod.c:150,157 – 1990/1018/sys/src/9/power/devhotrod.c:161,176
1990/1013		return 0; if(c->offset+n > sizeof(dp->mem)) n = sizeof(dp->mem) - c->offset;
1990/1018		/* * avoid memcpy to ensure VME 32-bit reads */
1990/1013		qlock(hp); memcpy(buf, &dp->mem[c->offset], n);
1990/1018		to = buf; from = &dp->mem[c->offset/sizeof(ulong)]; end = to + (n/sizeof(ulong)); while(to != end) *to++ = *from++;
1990/1013		qunlock(hp); return n; }
1990/1013/sys/src/9/power/devhotrod.c:164,170 – 1990/1018/sys/src/9/power/devhotrod.c:183,198
1990/1013		{ Hotrod *hp; Device *dp;
1990/1018		ulong *from; ulong *to; ulong *end;
1990/1013
1990/1018		/* * allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1))) error(0, Ebadarg);
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr; if(c->offset >= sizeof(dp->mem))
1990/1013/sys/src/9/power/devhotrod.c:171,178 – 1990/1018/sys/src/9/power/devhotrod.c:199,214
1990/1013		return 0; if(c->offset+n > sizeof(dp->mem)) n = sizeof(dp->mem) - c->offset;
1990/1018		/* * avoid memcpy to ensure VME 32-bit writes */
1990/1013		qlock(hp); memcpy(&dp->mem[c->offset], buf, n);
1990/1018		from = buf; to = &dp->mem[c->offset/sizeof(ulong)]; end = to + (n/sizeof(ulong)); while(to != end) *to++ = *from++;
1990/1013		qunlock(hp); return n; }
1990/1013/sys/src/9/power/devhotrod.c:201,206 – 1990/1018/sys/src/9/power/devhotrod.c:237,243
1990/1013		rooterrstr(e, buf); }
1990/1018		static void
1990/1013		hotrodintr(int vec) { Hotrod *hp;
1990/1018/sys/src/9/power/devhotrod.c:169,176 – 1990/1020/sys/src/9/power/devhotrod.c:169,177 (short | long)
1990/1018		to = buf; from = &dp->mem[c->offset/sizeof(ulong)]; end = to + (n/sizeof(ulong)); while(to != end)
1990/1020		while(to != end){
1990/1018		*to++ = *from++;
1990/1020		}
1990/1013		qunlock(hp); return n; }
1990/1020/sys/src/9/power/devhotrod.c:10,15 – 1990/1106/sys/src/9/power/devhotrod.c:10,16 (short | long)
1990/1013		typedef struct Hotrod Hotrod; typedef struct Device Device;
1990/1106		typedef struct Printbuf Printbuf;
1990/1013		enum { Vmevec= 0xd2, /* vme vector for interrupts */
1990/1020/sys/src/9/power/devhotrod.c:18,23 – 1990/1106/sys/src/9/power/devhotrod.c:19,34
1990/1013		}; /*
1990/1106		* circular 2 pointer queue for hotrod prnt's */ struct Printbuf { char *rptr; char *wptr; char *lim; char buf[4*1024]; }; /*
1990/1013		* the hotrod fiber interface responds to 1MB * of either user or supervisor accesses at: * 0x30000000 to 0x300FFFFF in A32 space
1990/1020/sys/src/9/power/devhotrod.c:31,44 – 1990/1106/sys/src/9/power/devhotrod.c:42,59
1990/1013		struct Hotrod { QLock; Device *addr; int vec; char name[NAMELEN];
1990/1106		Device *addr; /* address of the device */ int vec; /* vme interrupt vector */ char name[NAMELEN]; /* hot rod name */ Printbuf pbuf; /* circular queue for hotrod print's */ int kprocstarted; Rendez r;
1990/1013		}; Hotrod hotrod[Nhotrod]; static void hotrodintr(int);
1990/1106		void hotrodintr(int); void hotrodkproc(void *a);
1990/1013		int hotrodgen(Chan *c, Dirtab *tab, int ntab, int i, Dir *dp)
1990/1020/sys/src/9/power/devhotrod.c:79,84 – 1990/1106/sys/src/9/power/devhotrod.c:94,100
1990/1013		Chan* hotrodattach(char *spec) {
1990/1106		Hotrod *hp;
1990/1013		int i; Chan *c;
1990/1020/sys/src/9/power/devhotrod.c:86,91 – 1990/1106/sys/src/9/power/devhotrod.c:102,111
1990/1013		if(i >= Nhotrod) error(0, Ebadarg);
1990/1106		hp = &hotrod[i]; if(hp->kprocstarted == 0) kproc(hp->name, hotrodkproc, hp);
1990/1013		c = devattach('H', spec); c->dev = i; c->qid = CHDIR;
1990/1020/sys/src/9/power/devhotrod.c:113,118 – 1990/1106/sys/src/9/power/devhotrod.c:133,149
1990/1013		Chan* hotrodopen(Chan *c, int omode) {
1990/1106		Device *dp; Hotrod *hp; /* * Remind hotrod where the print buffer is. The address we store * is the address of the printbuf in VME A32 space. */ hp = &hotrod[c->dev]; dp = hp->addr; dp->mem[256*1024/sizeof(ulong)] = (((ulong)&hp->pbuf) - KZERO) | (SLAVE<<28);
1990/1013		if(c->qid == CHDIR){ if(omode != OREAD) error(0, Eperm);
1990/1020/sys/src/9/power/devhotrod.c:238,244 – 1990/1106/sys/src/9/power/devhotrod.c:269,275
1990/1013		rooterrstr(e, buf); }
1990/1018		static void
1990/1106		void
1990/1013		hotrodintr(int vec) { Hotrod *hp;
1990/1020/sys/src/9/power/devhotrod.c:248,252 – 1990/1106/sys/src/9/power/devhotrod.c:279,311
1990/1013		if(hp < hotrod || hp > &hotrod[Nhotrod]){ print("bad hotrod vec\n"); return;
1990/1106		} } /* * print hotrod processor messages on the console */ void hotrodkproc(void *a) { Hotrod *hp = a; char *p; hp->kprocstarted = 1; hp->pbuf.rptr = hp->pbuf.wptr = hp->pbuf.buf; hp->pbuf.lim = &hp->pbuf.buf[sizeof(hp->pbuf.buf)]; for(;;){ p = hp->pbuf.wptr; if(p != hp->pbuf.rptr){ if(p > hp->pbuf.rptr){ putstrn(hp->pbuf.rptr, p - hp->pbuf.rptr); } else { putstrn(hp->pbuf.rptr, hp->pbuf.lim - hp->pbuf.rptr); putstrn(hp->pbuf.buf, hp->pbuf.wptr - hp->pbuf.buf); } hp->pbuf.rptr = p; } tsleep(&(hp->r), return0, 0, 1000);
1990/1013		} }
1990/1106/sys/src/9/power/devhotrod.c:136,141 – 1990/1110/sys/src/9/power/devhotrod.c:136,142 (short | long)
1990/1106		Device *dp; Hotrod *hp;
1990/1110		#ifdef asdf
1990/1106		/* * Remind hotrod where the print buffer is. The address we store * is the address of the printbuf in VME A32 space.
1990/1106/sys/src/9/power/devhotrod.c:143,148 – 1990/1110/sys/src/9/power/devhotrod.c:144,150
1990/1106		hp = &hotrod[c->dev]; dp = hp->addr; dp->mem[256*1024/sizeof(ulong)] = (((ulong)&hp->pbuf) - KZERO) | (SLAVE<<28);
1990/1110		#endif
1990/1106
1990/1013		if(c->qid == CHDIR){ if(omode != OREAD)
1990/1110/sys/src/9/power/devhotrod.c:60,66 – 1990/11211/sys/src/9/power/devhotrod.c:60,66 (short | long)
1990/1013		{ if(i || c->dev>=Nhotrod) return -1; devdir(c, 0, hotrod[c->dev].name, sizeof(Device), 0666, dp);
1990/11211		devdir(c, (Qid){0,0}, hotrod[c->dev].name, sizeof(Device), 0666, dp);
1990/1013		return 1; }
1990/1110/sys/src/9/power/devhotrod.c:100,106 – 1990/11211/sys/src/9/power/devhotrod.c:100,106
1990/1013		i = strtoul(spec, 0, 0); if(i >= Nhotrod) error(0, Ebadarg);
1990/11211		error(Ebadarg);
1990/1013
1990/1106		hp = &hotrod[i]; if(hp->kprocstarted == 0)
1990/1110/sys/src/9/power/devhotrod.c:108,114 – 1990/11211/sys/src/9/power/devhotrod.c:108,115
1990/1106
1990/1013		c = devattach('H', spec); c->dev = i; c->qid = CHDIR;
1990/11211		c->qid.path = CHDIR; c->qid.vers = 0;
1990/1013		return c; }
1990/1110/sys/src/9/power/devhotrod.c:146,154 – 1990/11211/sys/src/9/power/devhotrod.c:147,155
1990/1106		dp->mem[256*1024/sizeof(ulong)] = (((ulong)&hp->pbuf) - KZERO) | (SLAVE<<28);
1990/1110		#endif
1990/1106
1990/1013		if(c->qid == CHDIR){
1990/11211		if(c->qid.path == CHDIR){
1990/1013		if(omode != OREAD) error(0, Eperm);
1990/11211		error(Eperm);
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1990/1110/sys/src/9/power/devhotrod.c:159,165 – 1990/11211/sys/src/9/power/devhotrod.c:160,166
1990/1013		void hotrodcreate(Chan *c, char *name, int omode, ulong perm) { error(0, Eperm);
1990/11211		error(Eperm);
1990/1013		} void
1990/1110/sys/src/9/power/devhotrod.c:179,185 – 1990/11211/sys/src/9/power/devhotrod.c:180,186
1990/1018		ulong *to; ulong *end;
1990/1013
1990/1018		if(c->qid&CHDIR)
1990/11211		if(c->qid.path & CHDIR)
1990/1018		return devdirread(c, buf, n, 0, 0, hotrodgen); /*
1990/1110/sys/src/9/power/devhotrod.c:186,192 – 1990/11211/sys/src/9/power/devhotrod.c:187,193
1990/1018		* allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1))) error(0, Ebadarg);
1990/11211		error(Ebadarg);
1990/1018
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr;
1990/1110/sys/src/9/power/devhotrod.c:225,231 – 1990/11211/sys/src/9/power/devhotrod.c:226,232
1990/1018		* allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1))) error(0, Ebadarg);
1990/11211		error(Ebadarg);
1990/1018
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr;
1990/1110/sys/src/9/power/devhotrod.c:250,274 – 1990/11211/sys/src/9/power/devhotrod.c:251,263
1990/1013		void hotrodremove(Chan *c) { error(0, Eperm);
1990/11211		error(Eperm);
1990/1013		} void hotrodwstat(Chan *c, char *dp) { error(0, Eperm); }                  void hotroduserstr(Error *e, char *buf) { consuserstr(e, buf); }                  void hotroderrstr(Error *e, char *buf) { rooterrstr(e, buf);
1990/11211		error(Eperm);
1990/1013		}
1990/1106		void
1990/11211/sys/src/9/power/devhotrod.c:9,52 – 1991/0209/sys/src/9/power/devhotrod.c:9,54 (short | long)
1990/1013		#include "io.h" typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1990/1013		typedef struct Device Device;
1990/1106		typedef struct Printbuf Printbuf;
1990/1013		enum { Vmevec= 0xd2, /* vme vector for interrupts */ Intlevel= 5, /* level to interrupt on */
1990/1018		Nhotrod= 2,
1991/0209		Qdir= 0, /* Qid's */ Qhotrod= 1, NhotQ= 10, /* size of communication queues */ Nhotrod= 1,
1990/1013		}; /*
1990/1106		* circular 2 pointer queue for hotrod prnt's */ struct Printbuf { char *rptr; char *wptr; char *lim; char buf[4*1024]; };                  /*
1990/1013		* the hotrod fiber interface responds to 1MB
1991/0209		* The hotrod fiber interface responds to 1MB
1990/1013		* of either user or supervisor accesses at: * 0x30000000 to 0x300FFFFF in A32 space * and 0xB00000 to 0xBFFFFF in A24 space
1991/0209		* and 0xB00000 to 0xBFFFFF in A24 space. * The second 0x40000 of this space is on-board SRAM.
1990/1013		*/ struct Device {
1990/1018		ulong mem[1024*1024/sizeof(ulong)];
1991/0209		ulong mem[0x100000/sizeof(ulong)];
1990/1013		};
1990/1018		#define HOTROD VMEA24SUP(Device, 0xB00000)
1990/1013		struct Hotrod { QLock;
1991/0209		struct HotQ{ ulong i; /* index into queue */ Hotmsg *msg[NhotQ]; /* pointer to command buffer */ ulong pad[3]; /* unused; for hotrod prints */ };
1990/1013
1991/0209		struct Hotrod{ QLock; Lock busy;
1990/1106		Device *addr; /* address of the device */ int vec; /* vme interrupt vector */ char name[NAMELEN]; /* hot rod name */ Printbuf pbuf; /* circular queue for hotrod print's */ int kprocstarted;
1991/0209		HotQ *wq; /* write this queue to send cmds */ int wi; /* where to write next cmd */ HotQ rq; /* read this queue to receive replies */ int ri; /* where to read next response */
1990/1106		Rendez r;
1990/1013		};
1990/11211/sys/src/9/power/devhotrod.c:53,67 – 1991/0209/sys/src/9/power/devhotrod.c:55,80
1990/1013		Hotrod hotrod[Nhotrod];
1990/1106		void hotrodintr(int); void hotrodkproc(void *a);
1990/1013		int hotrodgen(Chan *c, Dirtab *tab, int ntab, int i, Dir *dp)
1991/0209		/* * Commands */ enum{ RESET= 0, /* params: Q address, length of queue */ REBOOT= 1, /* params: none */ }; void hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{ if(i || c->dev>=Nhotrod) return -1;
1990/11211		devdir(c, (Qid){0,0}, hotrod[c->dev].name, sizeof(Device), 0666, dp);
1990/1013		return 1;
1991/0209		print("hotsend send %d %lux %lux\n", m->cmd, m, m->param[0]); h->wq->msg[h->wi] = m; while(h->wq->msg[h->wi]) ; print("hotsend done\n"); h->wi++; if(h->wi >= NhotQ) h->wi = 0;
1990/1013		} /*
1990/11211/sys/src/9/power/devhotrod.c:73,83 – 1991/0209/sys/src/9/power/devhotrod.c:86,99
1990/1013		int i;
1990/1018		Hotrod *hp;
1990/1013		for(i=0; i<Nhotrod; i++){ hotrod[i].addr = HOTROD+i; hotrod[i].vec = Vmevec+i; sprint(hotrod[i].name, "hotrod%d", i); setvmevec(hotrod[i].vec, hotrodintr);
1991/0209		for(hp=hotrod,i=0; i<Nhotrod; i++,hp++){ hp->addr = HOTROD+i; /* * Write queue is at end of hotrod memory */ hp->wq = (HotQ*)((ulong)hp->addr+2*0x40000-sizeof(HotQ)); hp->vec = Vmevec+i; setvmevec(hp->vec, hotrodintr);
1990/1013		} wbflush(); delay(20);
1990/11211/sys/src/9/power/devhotrod.c:102,111 – 1991/0209/sys/src/9/power/devhotrod.c:118,123
1990/1013		if(i >= Nhotrod)
1990/11211		error(Ebadarg);
1990/1013
1990/1106		hp = &hotrod[i]; if(hp->kprocstarted == 0) kproc(hp->name, hotrodkproc, hp);
1990/1013		c = devattach('H', spec); c->dev = i;
1990/11211		c->qid.path = CHDIR;
1990/11211/sys/src/9/power/devhotrod.c:122,134 – 1991/0209/sys/src/9/power/devhotrod.c:134,153
1990/1013		int hotrodwalk(Chan *c, char *name) { return devwalk(c, name, 0, 0, hotrodgen);
1991/0209		if(c->qid.path != CHDIR) return 0; if(strncmp(name, "hotrod", 6) == 0){ c->qid.path = Qhotrod; return 1; } return 0;
1990/1013		} void hotrodstat(Chan *c, char *dp) { devstat(c, dp, 0, 0, hotrodgen);
1991/0209		print("hotrodstat\n"); error(Egreg);
1990/1013		} Chan*
1990/11211/sys/src/9/power/devhotrod.c:137,155 – 1991/0209/sys/src/9/power/devhotrod.c:156,183
1990/1106		Device *dp; Hotrod *hp;
1990/1110		#ifdef asdf
1990/1106		/* * Remind hotrod where the print buffer is. The address we store * is the address of the printbuf in VME A32 space. */ hp = &hotrod[c->dev]; dp = hp->addr; dp->mem[256*1024/sizeof(ulong)] = (((ulong)&hp->pbuf) - KZERO) | (SLAVE<<28);
1990/1110		#endif
1990/1106
1990/11211		if(c->qid.path == CHDIR){
1990/1013		if(omode != OREAD)
1990/11211		error(Eperm);
1991/0209		}else if(c->qid.path == Qhotrod){ hp = &hotrod[c->dev]; if(!canlock(&hp->busy)) error(Einuse); /* * Clear communications region */ memset(hp->wq->msg, 0, sizeof(hp->wq->msg)); hp->wq->i = 0; /* * Issue reset */ hp->wi = 0; hp->ri = 0; u->khot.cmd = RESET; u->khot.param[0] = (ulong)&hp->rq; u->khot.param[1] = NhotQ; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1990/11211/sys/src/9/power/devhotrod.c:166,171 – 1991/0209/sys/src/9/power/devhotrod.c:194,207
1990/1013		void hotrodclose(Chan *c) {
1991/0209		Hotrod *hp; hp = &hotrod[c->dev]; if(c->qid.path != CHDIR){ u->khot.cmd = REBOOT; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); unlock(&hp->busy); }
1990/1013		} /*
1990/11211/sys/src/9/power/devhotrod.c:180,187 – 1991/0209/sys/src/9/power/devhotrod.c:216,223
1990/1018		ulong *to; ulong *end;
1990/1013
1990/11211		if(c->qid.path & CHDIR)
1990/1018		return devdirread(c, buf, n, 0, 0, hotrodgen);
1991/0209		if(c->qid.path != Qhotrod) error(Egreg);
1990/1018		/* * allow full word access only
1990/11211/sys/src/9/power/devhotrod.c:222,227 – 1991/0209/sys/src/9/power/devhotrod.c:258,265
1990/1018		ulong *to; ulong *end;
1990/1013
1991/0209		if(c->qid.path != Qhotrod) error(Egreg);
1990/1018		/* * allow full word access only */
1990/11211/sys/src/9/power/devhotrod.c:270,302 – 1991/0209/sys/src/9/power/devhotrod.c:308,312
1990/1013		if(hp < hotrod || hp > &hotrod[Nhotrod]){ print("bad hotrod vec\n"); return;
1990/1106		} }                  /* * print hotrod processor messages on the console */ void hotrodkproc(void *a) { Hotrod *hp = a; char *p;                  hp->kprocstarted = 1; hp->pbuf.rptr = hp->pbuf.wptr = hp->pbuf.buf; hp->pbuf.lim = &hp->pbuf.buf[sizeof(hp->pbuf.buf)];                  for(;;){ p = hp->pbuf.wptr; if(p != hp->pbuf.rptr){ if(p > hp->pbuf.rptr){ putstrn(hp->pbuf.rptr, p - hp->pbuf.rptr); } else { putstrn(hp->pbuf.rptr, hp->pbuf.lim - hp->pbuf.rptr); putstrn(hp->pbuf.buf, hp->pbuf.wptr - hp->pbuf.buf); } hp->pbuf.rptr = p; } tsleep(&(hp->r), return0, 0, 1000);
1990/1013		} }
1991/0209/sys/src/9/power/devhotrod.c:5,10 – 1991/0212/sys/src/9/power/devhotrod.c:5,11 (short | long)
1990/1013		#include "fns.h" #include "errno.h" #include "devtab.h"
1991/0212		#include "fcall.h"
1990/1013		#include "io.h"
1991/0209/sys/src/9/power/devhotrod.c:42,47 – 1991/0212/sys/src/9/power/devhotrod.c:43,49
1991/0209		struct Hotrod{ QLock;
1991/0212		QLock buflock;
1991/0209		Lock busy;
1990/1106		Device *addr; /* address of the device */ int vec; /* vme interrupt vector */
1991/0209/sys/src/9/power/devhotrod.c:50,55 – 1991/0212/sys/src/9/power/devhotrod.c:52,58
1991/0209		HotQ rq; /* read this queue to receive replies */ int ri; /* where to read next response */
1990/1106		Rendez r;
1991/0212		uchar buf[MAXFDATA+100];
1990/1013		}; Hotrod hotrod[Nhotrod];
1991/0209/sys/src/9/power/devhotrod.c:62,67 – 1991/0212/sys/src/9/power/devhotrod.c:65,72
1991/0209		enum{ RESET= 0, /* params: Q address, length of queue */ REBOOT= 1, /* params: none */
1991/0212		READ= 2, /* params: buffer, count, returned count */ WRITE= 3, /* params: buffer, count */
1991/0209		}; void
1991/0209/sys/src/9/power/devhotrod.c:68,74 – 1991/0212/sys/src/9/power/devhotrod.c:73,79
1991/0209		hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{
1991/0209		print("hotsend send %d %lux %lux\n", m->cmd, m, m->param[0]); h->wq->msg[h->wi] = m;
1991/0212		h->wq->msg[h->wi] = (Hotmsg*)MP2VME(m);
1991/0209		while(h->wq->msg[h->wi]) ; print("hotsend done\n");
1991/0209/sys/src/9/power/devhotrod.c:155,160 – 1991/0212/sys/src/9/power/devhotrod.c:160,166
1990/1013		{
1990/1106		Device *dp; Hotrod *hp;
1991/0212		Hotmsg *mp;
1990/1106
1990/11211		if(c->qid.path == CHDIR){
1990/1013		if(omode != OREAD)
1991/0209/sys/src/9/power/devhotrod.c:174,182 – 1991/0212/sys/src/9/power/devhotrod.c:180,189
1991/0209		*/ hp->wi = 0; hp->ri = 0; u->khot.cmd = RESET; u->khot.param[0] = (ulong)&hp->rq; u->khot.param[1] = NhotQ;
1991/0212		mp = &u->khot; mp->cmd = RESET; mp->param[0] = MP2VME(&hp->rq); mp->param[1] = NhotQ;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1990/1018		}
1990/1013		c->mode = openmode(omode);
1991/0209/sys/src/9/power/devhotrod.c:205,249 – 1991/0212/sys/src/9/power/devhotrod.c:212,271
1990/1013		} /* * read the hotrod memory
1991/0212		* Read and write use physical addresses if they can, which they usually can. * Most I/O is from devmnt, which has local buffers. Therefore just check * that buf is in KSEG0 and is at an even address.
1990/1013		*/
1991/0212
1990/1013		long hotrodread(Chan *c, void *buf, long n) { Hotrod *hp; Device *dp;
1990/1018		ulong *from; ulong *to; ulong *end;
1991/0212		Hotmsg *mp;
1990/1013
1991/0209		if(c->qid.path != Qhotrod) error(Egreg);
1990/1018		/* * allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1)))
1990/11211		error(Ebadarg);
1990/1018
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr; if(c->offset >= sizeof(dp->mem)) return 0; if(c->offset+n > sizeof(dp->mem)) n = sizeof(dp->mem) - c->offset;
1990/1018		/* * avoid memcpy to ensure VME 32-bit reads */
1990/1013		qlock(hp);
1990/1018		to = buf; from = &dp->mem[c->offset/sizeof(ulong)]; end = to + (n/sizeof(ulong));
1990/1020		while(to != end){
1990/1018		*to++ = *from++;
1991/0212		switch(c->qid.path){ case Qhotrod: if(n > sizeof hp->buf) error(Egreg); if((((ulong)buf)&(KSEGM|3)) == KSEG0){ /* * use supplied buffer, no need to lock for reply */ mp = &u->khot; mp->param[2] = 0; /* reply count */ qlock(hp); mp->cmd = READ; mp->param[0] = MP2VME(buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); qunlock(hp); do n = mp->param[2]; while(n == 0); }else{ /* * use hotrod buffer. lock the buffer till the reply */ mp = &u->uhot; mp->param[2] = 0; /* reply count */ qlock(&hp->buflock); qlock(hp); mp->cmd = READ; mp->param[0] = MP2VME(hp->buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot); qunlock(hp); do n = mp->param[2]; while(n == 0); memcpy(buf, hp->buf, n); qunlock(&hp->buflock); } return n;
1990/1020		}
1990/1013		qunlock(hp); return n;
1991/0212		error(Egreg); return 0;
1990/1013		} /*
1991/0209/sys/src/9/power/devhotrod.c:253,289 – 1991/0212/sys/src/9/power/devhotrod.c:275,317
1990/1013		hotrodwrite(Chan *c, void *buf, long n) { Hotrod *hp; Device *dp;
1990/1018		ulong *from; ulong *to; ulong *end;
1991/0212		Hotmsg *mp;
1990/1013
1991/0209		if(c->qid.path != Qhotrod) error(Egreg);
1990/1018		/* * allow full word access only */ if((c->offset&(sizeof(ulong)-1)) || (n&(sizeof(ulong)-1)))
1990/11211		error(Ebadarg);
1990/1018
1990/1013		hp = &hotrod[c->dev]; dp = hp->addr; if(c->offset >= sizeof(dp->mem)) return 0; if(c->offset+n > sizeof(dp->mem)) n = sizeof(dp->mem) - c->offset;
1990/1018		/* * avoid memcpy to ensure VME 32-bit writes */
1990/1013		qlock(hp);
1990/1018		from = buf; to = &dp->mem[c->offset/sizeof(ulong)]; end = to + (n/sizeof(ulong)); while(to != end) *to++ = *from++;
1990/1013		qunlock(hp); return n;
1991/0212		switch(c->qid.path){ case 1: if(n > sizeof hp->buf) error(Egreg); if((((ulong)buf)&(KSEGM|3)) == KSEG0){ /* * use supplied buffer, no need to lock for reply */ mp = &u->khot; qlock(hp); mp->cmd = WRITE; mp->param[0] = MP2VME(buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); qunlock(hp); }else{ /* * use hotrod buffer. lock the buffer till the reply */ mp = &u->uhot; qlock(&hp->buflock); qlock(hp); memcpy(hp->buf, buf, n); mp->cmd = WRITE; mp->param[0] = MP2VME(hp->buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot); qunlock(hp); qunlock(&hp->buflock); } return n; } error(Egreg); return 0;
1990/1013		} void
1991/0212/sys/src/9/power/devhotrod.c:67,72 – 1991/0214/sys/src/9/power/devhotrod.c:67,73 (short | long)
1991/0209		REBOOT= 1, /* params: none */
1991/0212		READ= 2, /* params: buffer, count, returned count */ WRITE= 3, /* params: buffer, count */
1991/0214		TEST= 7, /* params: none */
1991/0209		}; void
1991/0212/sys/src/9/power/devhotrod.c:185,190 – 1991/0214/sys/src/9/power/devhotrod.c:186,201
1991/0212		mp->param[0] = MP2VME(&hp->rq); mp->param[1] = NhotQ;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0214		delay(1000); print("reset\n"); /* * Issue reset */ mp->cmd = TEST; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); print("ok1\n"); delay(1000); print("ok2\n");
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0214/sys/src/9/power/devhotrod.c:8,17 – 1991/0215/sys/src/9/power/devhotrod.c:8,17 (short | long)
1991/0212		#include "fcall.h"
1990/1013		#include "io.h"
1991/0215		#include "hrod.h"
1990/1013		typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1990/1013		typedef struct Device Device; enum { Vmevec= 0xd2, /* vme vector for interrupts */
1991/0214/sys/src/9/power/devhotrod.c:18,39 – 1991/0215/sys/src/9/power/devhotrod.c:18,27
1990/1013		Intlevel= 5, /* level to interrupt on */
1991/0209		Qdir= 0, /* Qid's */ Qhotrod= 1, NhotQ= 10, /* size of communication queues */
1991/0215		NhotQ= NRQ, /* size of communication queues */
1991/0209		Nhotrod= 1,
1990/1013		}; /*
1991/0209		* The hotrod fiber interface responds to 1MB
1990/1013		* of either user or supervisor accesses at: * 0x30000000 to 0x300FFFFF in A32 space
1991/0209		* and 0xB00000 to 0xBFFFFF in A24 space. * The second 0x40000 of this space is on-board SRAM.
1990/1013		*/ struct Device {
1991/0209		ulong mem[0x100000/sizeof(ulong)];
1990/1013		};
1990/1018		#define HOTROD VMEA24SUP(Device, 0xB00000)
1990/1013
1991/0209		struct HotQ{ ulong i; /* index into queue */ Hotmsg *msg[NhotQ]; /* pointer to command buffer */
1991/0214/sys/src/9/power/devhotrod.c:45,51 – 1991/0215/sys/src/9/power/devhotrod.c:33,39
1991/0209		QLock;
1991/0212		QLock buflock;
1991/0209		Lock busy;
1990/1106		Device *addr; /* address of the device */
1991/0215		Hot *addr; /* address of the device */
1990/1106		int vec; /* vme interrupt vector */
1991/0209		HotQ *wq; /* write this queue to send cmds */ int wi; /* where to write next cmd */
1991/0214/sys/src/9/power/devhotrod.c:59,64 – 1991/0215/sys/src/9/power/devhotrod.c:47,54
1990/1013
1990/1106		void hotrodintr(int);
1990/1013
1991/0215		#define HOTROD VMEA24SUP(Hot, 0xB00000);
1991/0209		/* * Commands */
1991/0214/sys/src/9/power/devhotrod.c:75,82 – 1991/0215/sys/src/9/power/devhotrod.c:65,73
1990/1013		{
1991/0209		print("hotsend send %d %lux %lux\n", m->cmd, m, m->param[0]);
1991/0212		h->wq->msg[h->wi] = (Hotmsg*)MP2VME(m);
1991/0209		while(h->wq->msg[h->wi]) ;
1991/0215		do delay(1); while(h->wq->msg[h->wi]);
1991/0209		print("hotsend done\n"); h->wi++; if(h->wi >= NhotQ)
1991/0214/sys/src/9/power/devhotrod.c:97,105 – 1991/0215/sys/src/9/power/devhotrod.c:88,97
1991/0209		/* * Write queue is at end of hotrod memory */ hp->wq = (HotQ*)((ulong)hp->addr+2*0x40000-sizeof(HotQ));
1991/0215		hp->wq = (HotQ*)(&hp->addr->hostrp);
1991/0209		hp->vec = Vmevec+i; setvmevec(hp->vec, hotrodintr);
1991/0215		setvmevec(0xFF, hotrodintr);
1990/1013		} wbflush(); delay(20);
1991/0214/sys/src/9/power/devhotrod.c:159,165 – 1991/0215/sys/src/9/power/devhotrod.c:151,156
1990/1013		Chan* hotrodopen(Chan *c, int omode) {
1990/1106		Device *dp; Hotrod *hp;
1991/0212		Hotmsg *mp;
1990/1106
1991/0214/sys/src/9/power/devhotrod.c:186,201 – 1991/0215/sys/src/9/power/devhotrod.c:177,184
1991/0212		mp->param[0] = MP2VME(&hp->rq); mp->param[1] = NhotQ;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0214		delay(1000);
1991/0215		delay(100);
1991/0214		print("reset\n"); /* * Issue reset */ mp->cmd = TEST; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); print("ok1\n"); delay(1000); print("ok2\n");
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0214/sys/src/9/power/devhotrod.c:233,238 – 1991/0215/sys/src/9/power/devhotrod.c:216,222
1990/1013		{ Hotrod *hp;
1991/0212		Hotmsg *mp;
1991/0215		ulong l;
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){
1991/0214/sys/src/9/power/devhotrod.c:251,262 – 1991/0215/sys/src/9/power/devhotrod.c:235,251
1991/0212		mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); qunlock(hp);
1991/0215		l = 100*1000*000;
1991/0212		do n = mp->param[2]; while(n == 0);
1991/0215		while(n==0 && --l>0); if(n == 0){ print("devhotrod: give up\n"); error(Egreg); }
1991/0212		}else{ /* * use hotrod buffer. lock the buffer till the reply
1991/0215		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot; mp->param[2] = 0; /* reply count */
1991/0214/sys/src/9/power/devhotrod.c:267,277 – 1991/0215/sys/src/9/power/devhotrod.c:256,271
1991/0212		mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot); qunlock(hp);
1991/0215		l = 100*1000*1000;
1991/0212		do n = mp->param[2]; while(n == 0);
1991/0215		while(n==0 && --l>0);
1991/0212		memcpy(buf, hp->buf, n); qunlock(&hp->buflock);
1991/0215		if(n == 0){ print("devhotrod: give up\n"); error(Egreg); }
1991/0212		} return n;
1990/1020		}
1991/0214/sys/src/9/power/devhotrod.c:344,351 – 1991/0215/sys/src/9/power/devhotrod.c:338,347
1990/1013		print("hotrod%d interrupt\n", vec - Vmevec); hp = &hotrod[vec - Vmevec];
1991/0215		hp=&hotrod[0];
1990/1013		if(hp < hotrod || hp > &hotrod[Nhotrod]){ print("bad hotrod vec\n"); return; }
1991/0215		hp->addr->csr3 &= ~INT_VME;
1990/1013		}
1991/0215/sys/src/9/power/devhotrod.c:91,97 – 1991/0219/sys/src/9/power/devhotrod.c:91,96 (short | long)
1991/0215		hp->wq = (HotQ*)(&hp->addr->hostrp);
1991/0209		hp->vec = Vmevec+i; setvmevec(hp->vec, hotrodintr);
1991/0215		setvmevec(0xFF, hotrodintr);
1990/1013		} wbflush(); delay(20);
1991/0215/sys/src/9/power/devhotrod.c:179,184 – 1991/0219/sys/src/9/power/devhotrod.c:178,192
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0215		delay(100);
1991/0214		print("reset\n");
1991/0219		/* * Issue test */ mp = &u->khot; mp->cmd = TEST; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0215/sys/src/9/power/devhotrod.c:338,347 – 1991/0219/sys/src/9/power/devhotrod.c:346,354
1990/1013		print("hotrod%d interrupt\n", vec - Vmevec); hp = &hotrod[vec - Vmevec];
1991/0215		hp=&hotrod[0];
1990/1013		if(hp < hotrod || hp > &hotrod[Nhotrod]){ print("bad hotrod vec\n"); return; }
1991/0215		hp->addr->csr3 &= ~INT_VME;
1991/0219		hp->addr->lcsr3 &= ~INT_VME;
1990/1013		}
1991/0219/sys/src/9/power/devhotrod.c:40,46 – 1991/0220/sys/src/9/power/devhotrod.c:40,46 (short | long)
1991/0209		HotQ rq; /* read this queue to receive replies */ int ri; /* where to read next response */
1990/1106		Rendez r;
1991/0212		uchar buf[MAXFDATA+100];
1991/0220		uchar buf[MAXFDATA+MAXMSG];
1990/1013		}; Hotrod hotrod[Nhotrod];
1991/0219/sys/src/9/power/devhotrod.c:63,74 – 1991/0220/sys/src/9/power/devhotrod.c:63,74
1991/0209		void hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{
1991/0209		print("hotsend send %d %lux %lux\n", m->cmd, m, m->param[0]);
1991/0220		/* print("hotsend send %d %d %lux %lux\n", h->wi, m->cmd, m, m->param[0]); /**/
1991/0212		h->wq->msg[h->wi] = (Hotmsg*)MP2VME(m);
1991/0215		do delay(1); while(h->wq->msg[h->wi]);
1991/0209		print("hotsend done\n");
1991/0220		/* print("hotsend done\n"); /**/
1991/0209		h->wi++; if(h->wi >= NhotQ) h->wi = 0;
1991/0219/sys/src/9/power/devhotrod.c:179,184 – 1991/0220/sys/src/9/power/devhotrod.c:179,185
1991/0215		delay(100);
1991/0214		print("reset\n");
1991/0219
1991/0220		#ifdef asdf
1991/0219		/* * Issue test */
1991/0219/sys/src/9/power/devhotrod.c:187,192 – 1991/0220/sys/src/9/power/devhotrod.c:188,194
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1991/0220		#endif
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0219/sys/src/9/power/devhotrod.c:229,236 – 1991/0220/sys/src/9/power/devhotrod.c:231,240
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){ case Qhotrod: if(n > sizeof hp->buf)
1991/0220		if(n > sizeof hp->buf){ print("hotrod bufsize\n");
1991/0212		error(Egreg);
1991/0220		}
1991/0212		if((((ulong)buf)&(KSEGM|3)) == KSEG0){ /* * use supplied buffer, no need to lock for reply
1991/0219/sys/src/9/power/devhotrod.c:243,249 – 1991/0220/sys/src/9/power/devhotrod.c:247,253
1991/0212		mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); qunlock(hp);
1991/0215		l = 100*1000*000;
1991/0220		l = 100*1000*1000;
1991/0212		do n = mp->param[2];
1991/0215		while(n==0 && --l>0);
1991/0219/sys/src/9/power/devhotrod.c:277,282 – 1991/0220/sys/src/9/power/devhotrod.c:281,287
1991/0212		} return n;
1990/1020		}
1991/0220		print("hotrod read unk\n");
1991/0212		error(Egreg); return 0;
1990/1013		}
1991/0219/sys/src/9/power/devhotrod.c:293,300 – 1991/0220/sys/src/9/power/devhotrod.c:298,307
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){ case 1: if(n > sizeof hp->buf)
1991/0220		if(n > sizeof hp->buf){ print("hotrod write bufsize\n");
1991/0212		error(Egreg);
1991/0220		}
1991/0212		if((((ulong)buf)&(KSEGM|3)) == KSEG0){ /* * use supplied buffer, no need to lock for reply
1991/0219/sys/src/9/power/devhotrod.c:323,328 – 1991/0220/sys/src/9/power/devhotrod.c:330,336
1991/0212		} return n; }
1991/0220		print("hotrod write unk\n");
1991/0212		error(Egreg); return 0;
1990/1013		}
1991/0219/sys/src/9/power/devhotrod.c:344,350 – 1991/0220/sys/src/9/power/devhotrod.c:352,358
1990/1013		{ Hotrod *hp; print("hotrod%d interrupt\n", vec - Vmevec);
1991/0220		/* print("hotrod%d interrupt\n", vec - Vmevec); /**/
1990/1013		hp = &hotrod[vec - Vmevec]; if(hp < hotrod || hp > &hotrod[Nhotrod]){ print("bad hotrod vec\n");
1991/0220/sys/src/9/power/devhotrod.c:179,185 – 1991/0222/sys/src/9/power/devhotrod.c:179,184 (short | long)
1991/0215		delay(100);
1991/0214		print("reset\n");
1991/0219
1991/0220		#ifdef asdf
1991/0219		/* * Issue test */
1991/0220/sys/src/9/power/devhotrod.c:188,194 – 1991/0222/sys/src/9/power/devhotrod.c:187,192
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1991/0220		#endif
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0222/sys/src/9/power/devhotrod.c:147,152 – 1991/0227/sys/src/9/power/devhotrod.c:147,155 (short | long)
1991/0209		error(Egreg);
1990/1013		}
1991/0227		#define NTESTBUF 256 ulong testbuf[NTESTBUF];
1990/1013		Chan* hotrodopen(Chan *c, int omode) {
1991/0222/sys/src/9/power/devhotrod.c:184,189 – 1991/0227/sys/src/9/power/devhotrod.c:187,194
1991/0219		*/ mp = &u->khot; mp->cmd = TEST;
1991/0227		mp->param[0] = MP2VME(testbuf); mp->param[1] = NTESTBUF;
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1991/0227/sys/src/9/power/devhotrod.c:182,187 – 1991/0302/sys/src/9/power/devhotrod.c:182,188 (short | long)
1991/0215		delay(100);
1991/0214		print("reset\n");
1991/0219
1991/0302		#ifdef asdf
1991/0219		/* * Issue test */
1991/0227/sys/src/9/power/devhotrod.c:192,197 – 1991/0302/sys/src/9/power/devhotrod.c:193,199
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1991/0302		#endif
1990/1018		}
1990/1013		c->mode = openmode(omode); c->flag |= COPEN;
1991/0302/sys/src/9/power/devhotrod.c:10,15 – 1991/0303/sys/src/9/power/devhotrod.c:10,22 (short | long)
1990/1013		#include "io.h"
1991/0215		#include "hrod.h"
1990/1013
1991/0303		void mem(Hot*, ulong*, ulong); /* * If set, causes data transfers to have checksums */ #define ENABCKSUM 1
1990/1013		typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1990/1013
1991/0302/sys/src/9/power/devhotrod.c:55,62 – 1991/0303/sys/src/9/power/devhotrod.c:62,69
1991/0209		enum{ RESET= 0, /* params: Q address, length of queue */ REBOOT= 1, /* params: none */
1991/0212		READ= 2, /* params: buffer, count, returned count */ WRITE= 3, /* params: buffer, count */
1991/0303		READ= 2, /* params: buffer, count, sum, returned count */ WRITE= 3, /* params: buffer, count, sum */
1991/0214		TEST= 7, /* params: none */
1991/0209		};
1991/0302/sys/src/9/power/devhotrod.c:192,198 – 1991/0303/sys/src/9/power/devhotrod.c:199,209
1991/0227		mp->param[1] = NTESTBUF;
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); delay(100); print("tested\n");
1991/0303		print("testing addr %lux size %ld\n", mp->param[0], mp->param[1]); for(;;){ print("-"); mem(hp->addr, &hp->addr->ram[(mp->param[0]-0x40000)/sizeof(ulong)], mp->param[1]); }
1991/0302		#endif
1990/1018		}
1990/1013		c->mode = openmode(omode);
1991/0302/sys/src/9/power/devhotrod.c:220,225 – 1991/0303/sys/src/9/power/devhotrod.c:231,250
1991/0209		}
1990/1013		}
1991/0303		ulong hotsum(ulong *p, int n, ulong doit) { ulong sum; if(!doit) return 0; sum = 0; n = (n+sizeof(ulong)-1)/sizeof(ulong); while(--n >= 0) sum += *p++; return sum; }
1990/1013		/*
1991/0212		* Read and write use physical addresses if they can, which they usually can. * Most I/O is from devmnt, which has local buffers. Therefore just check
1991/0302/sys/src/9/power/devhotrod.c:231,237 – 1991/0303/sys/src/9/power/devhotrod.c:256,262
1990/1013		{ Hotrod *hp;
1991/0212		Hotmsg *mp;
1991/0215		ulong l;
1991/0303		ulong l, m;
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){
1991/0302/sys/src/9/power/devhotrod.c:245,251 – 1991/0303/sys/src/9/power/devhotrod.c:270,277
1991/0212		* use supplied buffer, no need to lock for reply */ mp = &u->khot; mp->param[2] = 0; /* reply count */
1991/0303		mp->param[2] = 0; /* checksum */ mp->param[3] = 0; /* reply count */
1991/0212		qlock(hp); mp->cmd = READ; mp->param[0] = MP2VME(buf);
1991/0302/sys/src/9/power/devhotrod.c:254,271 – 1991/0303/sys/src/9/power/devhotrod.c:280,303
1991/0212		qunlock(hp);
1991/0220		l = 100*1000*1000;
1991/0212		do n = mp->param[2];
1991/0215		while(n==0 && --l>0); if(n == 0){ print("devhotrod: give up\n");
1991/0303		m = mp->param[3]; while(m==0 && --l>0); if(m==0 || m>n){ print("devhotrod: count %ld %ld\n", m, n);
1991/0215		error(Egreg); }
1991/0303		if(mp->param[2] != hotsum(buf, m, mp->param[2])){ print("hotrod cksum err is %lux sb %lux\n", hotsum(buf, n, 1), mp->param[2]); error(Eio); }
1991/0212		}else{ /*
1991/0215		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot; mp->param[2] = 0; /* reply count */
1991/0303		mp->param[2] = 0; /* checksum */ mp->param[3] = 0; /* reply count */
1991/0212		qlock(&hp->buflock); qlock(hp); mp->cmd = READ;
1991/0302/sys/src/9/power/devhotrod.c:275,290 – 1991/0303/sys/src/9/power/devhotrod.c:307,329
1991/0212		qunlock(hp);
1991/0215		l = 100*1000*1000;
1991/0212		do n = mp->param[2];
1991/0215		while(n==0 && --l>0);
1991/0212		memcpy(buf, hp->buf, n); qunlock(&hp->buflock);
1991/0215		if(n == 0){ print("devhotrod: give up\n");
1991/0303		m = mp->param[3]; while(m==0 && --l>0); if(m==0 || m>n){ print("devhotrod: count %ld %ld\n", m, n); qunlock(&hp->buflock);
1991/0215		error(Egreg); }
1991/0303		if(mp->param[2] != hotsum((ulong*)hp->buf, m, mp->param[2])){ print("hotrod cksum err is %lux sb %lux\n", hotsum((ulong*)hp->buf, n, 1), mp->param[2]); qunlock(&hp->buflock); error(Eio); } memcpy(buf, hp->buf, m); qunlock(&hp->buflock);
1991/0212		} return n;
1991/0303		return m;
1990/1020		}
1991/0220		print("hotrod read unk\n");
1991/0212		error(Egreg);
1991/0302/sys/src/9/power/devhotrod.c:316,321 – 1991/0303/sys/src/9/power/devhotrod.c:355,361
1991/0212		mp->cmd = WRITE; mp->param[0] = MP2VME(buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum(buf, n, ENABCKSUM);
1991/0212		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); qunlock(hp); }else{
1991/0302/sys/src/9/power/devhotrod.c:329,334 – 1991/0303/sys/src/9/power/devhotrod.c:369,375
1991/0212		mp->cmd = WRITE; mp->param[0] = MP2VME(hp->buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum((ulong*)hp->buf, n, ENABCKSUM);
1991/0212		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot); qunlock(hp); qunlock(&hp->buflock);
1991/0302/sys/src/9/power/devhotrod.c:364,367 – 1991/0303/sys/src/9/power/devhotrod.c:405,498
1990/1013		return; }
1991/0219		hp->addr->lcsr3 &= ~INT_VME;
1991/0303		} void mem(Hot *hot, ulong *buf, ulong size) { long i, j, k, l; ulong *p, bit, u; int q; goto part4; /* one bit */ bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; *p = bit; bit <<= 1; } bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; if(*p != bit) { print("A: %lux is %lux sb %lux\n", p, *p, bit); hot->error++; delay(500); } bit <<= 1; } /* all but one bit */ bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; *p = ~bit; bit <<= 1; } bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; if(*p != ~bit) { print("B: %lux is %lux sb %lux\n", p, *p, ~bit); hot->error++; delay(500); } bit <<= 1; } /* rand bit */ bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; *p = bit; bit += PRIME; } bit = 0; p = buf; for(i=0; i<size; i++,p++) { if(bit == 0) bit = 1; if(*p != bit) { print("C: %lux is %lux sb %lux\n", p, *p, bit); hot->error++; delay(500); } bit += PRIME; } part4: /* address */ p = buf; for(i=0; i<size; i++,p++) *p = i; for(j=0; j<200; j++) { p = buf; for(i=0; i<size; i++,p++) { u = *p; if(u != i+j) { print("D: %lux is %lux sb %lux (%lux)\n", p, u, i+j, *p); hot->error++; delay(500); } *p = i+j+1; } }
1990/1013		}
1991/0303/sys/src/9/power/devhotrod.c:15,21 – 1991/0304/sys/src/9/power/devhotrod.c:15,21 (short | long)
1991/0303		/* * If set, causes data transfers to have checksums */ #define ENABCKSUM 1
1991/0304		#define ENABCKSUM 0
1991/0303
1990/1013		typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1991/0303/sys/src/9/power/devhotrod.c:70,84 – 1991/0304/sys/src/9/power/devhotrod.c:70,92
1991/0209		void hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{
1991/0304		Hotmsg **mp; long l;
1991/0220		/* print("hotsend send %d %d %lux %lux\n", h->wi, m->cmd, m, m->param[0]); /**/
1991/0212		h->wq->msg[h->wi] = (Hotmsg*)MP2VME(m);
1991/0215		do delay(1); while(h->wq->msg[h->wi]);
1991/0220		/* print("hotsend done\n"); /**/
1991/0304		mp = &h->wq->msg[h->wi]; *mp = (Hotmsg*)MP2VME(m);
1991/0209		h->wi++; if(h->wi >= NhotQ) h->wi = 0;
1991/0304		l = 0; while(*mp){ delay(0); /* just a subroutine call; stay off VME */ if(++l > 1000*1000){ l = 0; print("hotsend blocked\n"); } }
1990/1013		} /*
1991/0303/sys/src/9/power/devhotrod.c:360,366 – 1991/0304/sys/src/9/power/devhotrod.c:368,374
1991/0212		qunlock(hp); }else{ /* * use hotrod buffer. lock the buffer till the reply
1991/0304		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot; qlock(&hp->buflock);
1991/0304/sys/src/9/power/devhotrod.c:10,41 – 1991/0306/sys/src/9/power/devhotrod.c:10,37 (short | long)
1990/1013		#include "io.h"
1991/0215		#include "hrod.h"
1990/1013
1991/0306		/* * If defined, causes memory test to be run at device open */ #ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0306		#endif
1991/0303		/* * If set, causes data transfers to have checksums */
1991/0304		#define ENABCKSUM 0
1991/0306		#define ENABCKSUM 1
1991/0303
1990/1013		typedef struct Hotrod Hotrod;
1991/0209		typedef struct HotQ HotQ;
1990/1013		enum {
1991/0306		enum{
1990/1013		Vmevec= 0xd2, /* vme vector for interrupts */ Intlevel= 5, /* level to interrupt on */
1991/0209		Qdir= 0, /* Qid's */ Qhotrod= 1,
1991/0215		NhotQ= NRQ, /* size of communication queues */
1991/0209		Nhotrod= 1,
1990/1013		};
1991/0209		struct HotQ{ ulong i; /* index into queue */ Hotmsg *msg[NhotQ]; /* pointer to command buffer */ ulong pad[3]; /* unused; for hotrod prints */ };
1990/1013
1991/0209		struct Hotrod{ QLock;
1991/0212		QLock buflock;
1991/0304/sys/src/9/power/devhotrod.c:42,52 – 1991/0306/sys/src/9/power/devhotrod.c:38,46
1991/0209		Lock busy;
1991/0215		Hot *addr; /* address of the device */
1990/1106		int vec; /* vme interrupt vector */
1991/0209		HotQ *wq; /* write this queue to send cmds */ int wi; /* where to write next cmd */ HotQ rq; /* read this queue to receive replies */
1991/0306		ulong rq[NRQ]; /* read this queue to receive replies */
1991/0209		int ri; /* where to read next response */
1990/1106		Rendez r;
1991/0220		uchar buf[MAXFDATA+MAXMSG];
1990/1013		};
1991/0304/sys/src/9/power/devhotrod.c:74,83 – 1991/0306/sys/src/9/power/devhotrod.c:68,77
1991/0304		long l;
1991/0220		/* print("hotsend send %d %d %lux %lux\n", h->wi, m->cmd, m, m->param[0]); /**/
1991/0304		mp = &h->wq->msg[h->wi];
1991/0306		mp = (Hotmsg**)&h->addr->hostrq[h->wi];
1991/0304		*mp = (Hotmsg*)MP2VME(m);
1991/0209		h->wi++; if(h->wi >= NhotQ)
1991/0306		if(h->wi >= NRQ)
1991/0209		h->wi = 0;
1991/0304		l = 0; while(*mp){
1991/0304/sys/src/9/power/devhotrod.c:103,109 – 1991/0306/sys/src/9/power/devhotrod.c:97,102
1991/0209		/* * Write queue is at end of hotrod memory */
1991/0215		hp->wq = (HotQ*)(&hp->addr->hostrp);
1991/0209		hp->vec = Vmevec+i; setvmevec(hp->vec, hotrodintr);
1990/1013		}
1991/0304/sys/src/9/power/devhotrod.c:181,188 – 1991/0306/sys/src/9/power/devhotrod.c:174,181
1991/0209		/* * Clear communications region */ memset(hp->wq->msg, 0, sizeof(hp->wq->msg)); hp->wq->i = 0;
1991/0306		memset(hp->addr->hostrq, 0, NRQ*sizeof(ulong)); hp->addr->hostrp = 0;
1991/0209		/* * Issue reset
1991/0304/sys/src/9/power/devhotrod.c:191,203 – 1991/0306/sys/src/9/power/devhotrod.c:184,196
1991/0209		hp->ri = 0;
1991/0212		mp = &u->khot; mp->cmd = RESET; mp->param[0] = MP2VME(&hp->rq); mp->param[1] = NhotQ;
1991/0306		mp->param[0] = MP2VME(hp->rq); mp->param[1] = NRQ;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0215		delay(100);
1991/0214		print("reset\n");
1991/0219
1991/0302		#ifdef asdf
1991/0306		#ifdef ENABMEMTEST
1991/0219		/* * Issue test */
1991/0304/sys/src/9/power/devhotrod.c:253,258 – 1991/0306/sys/src/9/power/devhotrod.c:246,257
1991/0303		return sum; }
1991/0306		int hotmsgintr(Hotmsg *hm) { return hm->intr; }
1990/1013		/*
1991/0212		* Read and write use physical addresses if they can, which they usually can. * Most I/O is from devmnt, which has local buffers. Therefore just check
1991/0304/sys/src/9/power/devhotrod.c:264,270 – 1991/0306/sys/src/9/power/devhotrod.c:263,269
1990/1013		{ Hotrod *hp;
1991/0212		Hotmsg *mp;
1991/0303		ulong l, m;
1991/0306		ulong l, m, isflush;
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){
1991/0304/sys/src/9/power/devhotrod.c:277,283 – 1991/0306/sys/src/9/power/devhotrod.c:276,287
1991/0212		/* * use supplied buffer, no need to lock for reply */ mp = &u->khot;
1991/0306		isflush = 0; mp = &((User*)(u->p->upage->pa|KZERO))->khot; if(mp->abort){ /* use reserved flush msg */ mp = &((User*)(u->p->upage->pa|KZERO))->fhot; isflush = 1; }
1991/0303		mp->param[2] = 0; /* checksum */ mp->param[3] = 0; /* reply count */
1991/0212		qlock(hp);
1991/0304/sys/src/9/power/devhotrod.c:284,295 – 1991/0306/sys/src/9/power/devhotrod.c:288,310
1991/0212		mp->cmd = READ; mp->param[0] = MP2VME(buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0306		mp->abort = isflush; mp->intr = 0; hotsend(hp, mp);
1991/0212		qunlock(hp);
1991/0220		l = 100*1000*1000;
1991/0212		do
1991/0306		if(isflush){ /* busy loop */ l = 100*1000*1000; do m = mp->param[3]; while(m==0 && --l>0); }else{ if(waserror()){ mp->abort = 1; nexterror(); } sleep(&mp->r, hotmsgintr, mp);
1991/0303		m = mp->param[3]; while(m==0 && --l>0);
1991/0306		}
1991/0303		if(m==0 || m>n){ print("devhotrod: count %ld %ld\n", m, n);
1991/0215		error(Egreg);
1991/0304/sys/src/9/power/devhotrod.c:299,309 – 1991/0306/sys/src/9/power/devhotrod.c:314,326
1991/0303		hotsum(buf, n, 1), mp->param[2]); error(Eio); }
1991/0306		if(!isflush) poperror();
1991/0212		}else{ /*
1991/0215		* use hotrod buffer. lock the buffer until the reply
1991/0306		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot;
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->uhot;
1991/0303		mp->param[2] = 0; /* checksum */ mp->param[3] = 0; /* reply count */
1991/0212		qlock(&hp->buflock);
1991/0304/sys/src/9/power/devhotrod.c:311,317 – 1991/0306/sys/src/9/power/devhotrod.c:328,336
1991/0212		mp->cmd = READ; mp->param[0] = MP2VME(hp->buf); mp->param[1] = n; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot);
1991/0306		mp->abort = 1; mp->intr = 0; hotsend(hp, mp);
1991/0212		qunlock(hp);
1991/0215		l = 100*1000*1000;
1991/0212		do
1991/0304/sys/src/9/power/devhotrod.c:338,346 – 1991/0306/sys/src/9/power/devhotrod.c:357,362
1991/0212		return 0;
1990/1013		} /* * write hotrod memory */ long hotrodwrite(Chan *c, void *buf, long n) {
1991/0304/sys/src/9/power/devhotrod.c:356,376 – 1991/0306/sys/src/9/power/devhotrod.c:372,394
1991/0220		}
1991/0212		if((((ulong)buf)&(KSEGM|3)) == KSEG0){ /* * use supplied buffer, no need to lock for reply
1991/0306		* use supplied buffer, no need to lock for reply
1991/0212		*/ mp = &u->khot;
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->khot; if(mp->abort) /* use reserved flush msg */ mp = &((User*)(u->p->upage->pa|KZERO))->fhot;
1991/0212		qlock(hp); mp->cmd = WRITE; mp->param[0] = MP2VME(buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum(buf, n, ENABCKSUM);
1991/0212		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0306		hotsend(hp, mp);
1991/0212		qunlock(hp); }else{ /*
1991/0304		* use hotrod buffer. lock the buffer until the reply
1991/0306		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/ mp = &u->uhot;
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->uhot;
1991/0212		qlock(&hp->buflock); qlock(hp); memcpy(hp->buf, buf, n);
1991/0304/sys/src/9/power/devhotrod.c:378,384 – 1991/0306/sys/src/9/power/devhotrod.c:396,402
1991/0212		mp->param[0] = MP2VME(hp->buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum((ulong*)hp->buf, n, ENABCKSUM);
1991/0212		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->uhot);
1991/0306		hotsend(hp, mp);
1991/0212		qunlock(hp); qunlock(&hp->buflock); }
1991/0304/sys/src/9/power/devhotrod.c:404,420 – 1991/0306/sys/src/9/power/devhotrod.c:422,448
1990/1106		void
1990/1013		hotrodintr(int vec) { Hotrod *hp;
1991/0306		Hotrod *h; Hotmsg *hm;
1990/1013
1991/0220		/* print("hotrod%d interrupt\n", vec - Vmevec); /**/
1990/1013		hp = &hotrod[vec - Vmevec]; if(hp < hotrod || hp > &hotrod[Nhotrod]){
1991/0306		h = &hotrod[vec - Vmevec]; if(h < hotrod || h > &hotrod[Nhotrod]){
1990/1013		print("bad hotrod vec\n"); return; }
1991/0219		hp->addr->lcsr3 &= ~INT_VME;
1991/0306		h->addr->lcsr3 &= ~INT_VME; hm = (Hotmsg*)VME2MP(h->rq[h->ri]); h->rq[h->ri] = 0; h->ri++; if(h->ri >= NRQ) h->ri = 0; hm->intr = 1; if(hm->abort) return; wakeup(&hm->r);
1991/0303		}
1991/0306		#ifdef ENABMEMTEST
1991/0303		void mem(Hot *hot, ulong *buf, ulong size) {
1991/0304/sys/src/9/power/devhotrod.c:504,506 – 1991/0306/sys/src/9/power/devhotrod.c:532,535
1991/0303		} }
1990/1013		}
1991/0306		#endif
1991/0306/sys/src/9/power/devhotrod.c:11,24 – 1991/0307/sys/src/9/power/devhotrod.c:11,26 (short | long)
1991/0215		#include "hrod.h"
1990/1013
1991/0306		/* * If defined, causes memory test to be run at device open
1991/0307		* If defined, ENABMEMTEST causes memory test to be run at device open
1991/0306		*/ #ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0307		#define NTESTBUF 256 ulong testbuf[NTESTBUF];
1991/0306		#endif
1991/0303		/* * If set, causes data transfers to have checksums
1991/0307		* If 1, ENABCKSUM causes data transfers to have checksums
1991/0303		*/
1991/0306		#define ENABCKSUM 1
1991/0303
1991/0306/sys/src/9/power/devhotrod.c:32,37 – 1991/0307/sys/src/9/power/devhotrod.c:34,45
1991/0209		Nhotrod= 1,
1990/1013		};
1991/0307		Dirtab hotroddir[]={ "hotrod", {Qhotrod}, 0, 0600, }; #define NHOTRODDIR (sizeof hotroddir/sizeof(Dirtab))
1991/0209		struct Hotrod{ QLock;
1991/0212		QLock buflock;
1991/0306/sys/src/9/power/devhotrod.c:53,66 – 1991/0307/sys/src/9/power/devhotrod.c:61,66
1991/0209		/* * Commands */ enum{ RESET= 0, /* params: Q address, length of queue */ REBOOT= 1, /* params: none */
1991/0303		READ= 2, /* params: buffer, count, sum, returned count */ WRITE= 3, /* params: buffer, count, sum */
1991/0214		TEST= 7, /* params: none */
1991/0209		};                  void hotsend(Hotrod *h, Hotmsg *m)
1990/1013		{
1991/0306/sys/src/9/power/devhotrod.c:100,107 – 1991/0307/sys/src/9/power/devhotrod.c:100,105
1991/0209		hp->vec = Vmevec+i; setvmevec(hp->vec, hotrodintr);
1990/1013		} wbflush(); delay(20); } void
1991/0306/sys/src/9/power/devhotrod.c:139,163 – 1991/0307/sys/src/9/power/devhotrod.c:137,151
1990/1013		int hotrodwalk(Chan *c, char *name) {
1991/0209		if(c->qid.path != CHDIR) return 0; if(strncmp(name, "hotrod", 6) == 0){ c->qid.path = Qhotrod; return 1; } return 0;
1991/0307		return devwalk(c, name, hotroddir, NHOTRODDIR, devgen);
1990/1013		} void hotrodstat(Chan *c, char *dp) {
1991/0209		print("hotrodstat\n"); error(Egreg);
1991/0307		devstat(c, dp, hotroddir, NHOTRODDIR, devgen);
1990/1013		}
1991/0227		#define NTESTBUF 256 ulong testbuf[NTESTBUF];
1990/1013		Chan* hotrodopen(Chan *c, int omode) {
1991/0306/sys/src/9/power/devhotrod.c:183,189 – 1991/0307/sys/src/9/power/devhotrod.c:171,177
1991/0209		hp->wi = 0; hp->ri = 0;
1991/0212		mp = &u->khot; mp->cmd = RESET;
1991/0307		mp->cmd = Ureset;
1991/0306		mp->param[0] = MP2VME(hp->rq); mp->param[1] = NRQ;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0306/sys/src/9/power/devhotrod.c:195,201 – 1991/0307/sys/src/9/power/devhotrod.c:183,189
1991/0219		* Issue test */ mp = &u->khot; mp->cmd = TEST;
1991/0307		mp->cmd = Utest;
1991/0227		mp->param[0] = MP2VME(testbuf); mp->param[1] = NTESTBUF;
1991/0219		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0306/sys/src/9/power/devhotrod.c:226,232 – 1991/0307/sys/src/9/power/devhotrod.c:214,220
1991/0209		hp = &hotrod[c->dev]; if(c->qid.path != CHDIR){ u->khot.cmd = REBOOT;
1991/0307		u->khot.cmd = Ureboot;
1991/0209		hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot); unlock(&hp->busy); }
1991/0306/sys/src/9/power/devhotrod.c:266,272 – 1991/0307/sys/src/9/power/devhotrod.c:254,263
1991/0306		ulong l, m, isflush;
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){
1991/0307		switch(c->qid.path & ~CHDIR){ case Qdir: return devdirread(c, buf, n, hotroddir, NHOTRODDIR, devgen);
1991/0212		case Qhotrod:
1991/0220		if(n > sizeof hp->buf){ print("hotrod bufsize\n");
1991/0306/sys/src/9/power/devhotrod.c:282,291 – 1991/0307/sys/src/9/power/devhotrod.c:273,282
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->fhot; isflush = 1; }
1991/0303		mp->param[2] = 0; /* checksum */
1991/0307		mp->param[2] = 0; /* reply checksum */
1991/0303		mp->param[3] = 0; /* reply count */
1991/0212		qlock(hp); mp->cmd = READ;
1991/0307		mp->cmd = Uread;
1991/0212		mp->param[0] = MP2VME(buf); mp->param[1] = n;
1991/0306		mp->abort = isflush;
1991/0306/sys/src/9/power/devhotrod.c:310,317 – 1991/0307/sys/src/9/power/devhotrod.c:301,310
1991/0215		error(Egreg); }
1991/0303		if(mp->param[2] != hotsum(buf, m, mp->param[2])){
1991/0307		hp->addr->error++;
1991/0303		print("hotrod cksum err is %lux sb %lux\n", hotsum(buf, n, 1), mp->param[2]);
1991/0307		{int i; for(i=0; i<8; i++) print("%lux\n", ((ulong*)buf)[i]); }
1991/0303		error(Eio); }
1991/0306		if(!isflush)
1991/0306/sys/src/9/power/devhotrod.c:321,331 – 1991/0307/sys/src/9/power/devhotrod.c:314,324
1991/0306		* use hotrod buffer. lock the buffer until the reply
1991/0212		*/
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->uhot;
1991/0303		mp->param[2] = 0; /* checksum */
1991/0307		mp->param[2] = 0; /* reply checksum */
1991/0303		mp->param[3] = 0; /* reply count */
1991/0212		qlock(&hp->buflock); qlock(hp); mp->cmd = READ;
1991/0307		mp->cmd = Uread;
1991/0212		mp->param[0] = MP2VME(hp->buf); mp->param[1] = n;
1991/0306		mp->abort = 1;
1991/0306/sys/src/9/power/devhotrod.c:342,350 – 1991/0307/sys/src/9/power/devhotrod.c:335,345
1991/0215		error(Egreg); }
1991/0303		if(mp->param[2] != hotsum((ulong*)hp->buf, m, mp->param[2])){
1991/0307		hp->addr->error++;
1991/0303		print("hotrod cksum err is %lux sb %lux\n", hotsum((ulong*)hp->buf, n, 1), mp->param[2]); qunlock(&hp->buflock);
1991/0307		{int i; for(i=0; i<8; i++) print("%lux\n", ((ulong*)buf)[i]); }
1991/0303		error(Eio); } memcpy(buf, hp->buf, m);
1991/0306/sys/src/9/power/devhotrod.c:364,371 – 1991/0307/sys/src/9/power/devhotrod.c:359,369
1991/0212		Hotmsg *mp;
1990/1013		hp = &hotrod[c->dev];
1991/0212		switch(c->qid.path){ case 1:
1991/0307		switch(c->qid.path & ~CHDIR){ case Qdir: return devdirread(c, buf, n, hotroddir, NHOTRODDIR, devgen); case Qhotrod:
1991/0220		if(n > sizeof hp->buf){ print("hotrod write bufsize\n");
1991/0212		error(Egreg);
1991/0306/sys/src/9/power/devhotrod.c:378,384 – 1991/0307/sys/src/9/power/devhotrod.c:376,382
1991/0306		if(mp->abort) /* use reserved flush msg */ mp = &((User*)(u->p->upage->pa|KZERO))->fhot;
1991/0212		qlock(hp); mp->cmd = WRITE;
1991/0307		mp->cmd = Uwrite;
1991/0212		mp->param[0] = MP2VME(buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum(buf, n, ENABCKSUM);
1991/0306/sys/src/9/power/devhotrod.c:392,398 – 1991/0307/sys/src/9/power/devhotrod.c:390,396
1991/0212		qlock(&hp->buflock); qlock(hp); memcpy(hp->buf, buf, n); mp->cmd = WRITE;
1991/0307		mp->cmd = Uwrite;
1991/0212		mp->param[0] = MP2VME(hp->buf); mp->param[1] = n;
1991/0303		mp->param[2] = hotsum((ulong*)hp->buf, n, ENABCKSUM);
1991/0307/sys/src/9/power/devhotrod.c:13,18 – 1991/0316/sys/src/9/power/devhotrod.c:13,19 (short | long)
1991/0306		/*
1991/0307		* If defined, ENABMEMTEST causes memory test to be run at device open
1991/0306		*/
1991/0316		#define ENABMEMTEST
1991/0306		#ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0307		#define NTESTBUF 256
1991/0316/sys/src/9/power/devhotrod.c:13,19 – 1991/0317/sys/src/9/power/devhotrod.c:13,18 (short | long)
1991/0306		/*
1991/0307		* If defined, ENABMEMTEST causes memory test to be run at device open
1991/0306		*/
1991/0316		#define ENABMEMTEST
1991/0306		#ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0307		#define NTESTBUF 256
1991/0317/sys/src/9/power/devhotrod.c:342,348 – 1991/0318/sys/src/9/power/devhotrod.c:342,348 (short | long)
1991/0307		{int i; for(i=0; i<8; i++) print("%lux\n", ((ulong*)buf)[i]); }
1991/0303		error(Eio); } memcpy(buf, hp->buf, m);
1991/0318		memmove(buf, hp->buf, m);
1991/0303		qunlock(&hp->buflock);
1991/0212		}
1991/0303		return m;
1991/0317/sys/src/9/power/devhotrod.c:389,395 – 1991/0318/sys/src/9/power/devhotrod.c:389,395
1991/0306		mp = &((User*)(u->p->upage->pa|KZERO))->uhot;
1991/0212		qlock(&hp->buflock); qlock(hp); memcpy(hp->buf, buf, n);
1991/0318		memmove(hp->buf, buf, n);
1991/0307		mp->cmd = Uwrite;
1991/0212		mp->param[0] = MP2VME(hp->buf); mp->param[1] = n;
1991/0318/sys/src/9/power/devhotrod.c:422,443 – 1991/0326/sys/src/9/power/devhotrod.c:422,447 (short | long)
1990/1013		{
1991/0306		Hotrod *h; Hotmsg *hm;
1991/0326		ulong l;
1990/1013
1991/0306		h = &hotrod[vec - Vmevec]; if(h < hotrod || h > &hotrod[Nhotrod]){
1991/0326		if(h<hotrod || h>&hotrod[Nhotrod]){
1990/1013		print("bad hotrod vec\n"); return; }
1991/0306		h->addr->lcsr3 &= ~INT_VME; hm = (Hotmsg*)VME2MP(h->rq[h->ri]); h->rq[h->ri] = 0; h->ri++; if(h->ri >= NRQ) h->ri = 0; hm->intr = 1; if(hm->abort) return; wakeup(&hm->r);
1991/0326		while(l = h->rq[h->ri]){ /* assign = */ hm = (Hotmsg*)(VME2MP(l)); h->rq[h->ri] = 0; h->ri++; if(h->ri >= NRQ) h->ri = 0; hm->intr = 1; if(hm->abort) print("abort wakeup\n"); else wakeup(&hm->r); }
1991/0303		}
1991/0306		#ifdef ENABMEMTEST
1991/0326/sys/src/9/power/devhotrod.c:18,23 – 1991/0328/sys/src/9/power/devhotrod.c:18,27 (short | long)
1991/0307		#define NTESTBUF 256 ulong testbuf[NTESTBUF];
1991/0306		#endif
1991/0328		/* * If defined, ENABBUSTEST causes bus error diagnostic to be run at device open */ #define ENABBUSTEST
1991/0303		/*
1991/0307		* If 1, ENABCKSUM causes data transfers to have checksums
1991/0326/sys/src/9/power/devhotrod.c:193,198 – 1991/0328/sys/src/9/power/devhotrod.c:197,210
1991/0303		print("-"); mem(hp->addr, &hp->addr->ram[(mp->param[0]-0x40000)/sizeof(ulong)], mp->param[1]); }
1991/0328		#endif #ifdef ENABBUSTEST /* * Issue test */ mp = &u->khot; mp->cmd = Ubus; hotsend(hp, &((User*)(u->p->upage->pa|KZERO))->khot);
1991/0302		#endif
1990/1018		}
1990/1013		c->mode = openmode(omode);
1991/0328/sys/src/9/power/devhotrod.c:13,18 – 1991/0329/sys/src/9/power/devhotrod.c:13,19 (short | long)
1991/0306		/*
1991/0307		* If defined, ENABMEMTEST causes memory test to be run at device open
1991/0306		*/
1991/0329		#define ENABMEMTEST
1991/0306		#ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0307		#define NTESTBUF 256
1991/0328/sys/src/9/power/devhotrod.c:21,27 – 1991/0329/sys/src/9/power/devhotrod.c:22,27
1991/0328		/* * If defined, ENABBUSTEST causes bus error diagnostic to be run at device open */ #define ENABBUSTEST
1991/0303		/*
1991/0307		* If 1, ENABCKSUM causes data transfers to have checksums
1991/0329/sys/src/9/power/devhotrod.c:13,19 – 1991/0331/sys/src/9/power/devhotrod.c:13,18 (short | long)
1991/0306		/*
1991/0307		* If defined, ENABMEMTEST causes memory test to be run at device open
1991/0306		*/
1991/0329		#define ENABMEMTEST
1991/0306		#ifdef ENABMEMTEST
1991/0303		void mem(Hot*, ulong*, ulong);
1991/0307		#define NTESTBUF 256
1991/0329/sys/src/9/power/devhotrod.c:26,32 – 1991/0331/sys/src/9/power/devhotrod.c:25,31
1991/0303		/*
1991/0307		* If 1, ENABCKSUM causes data transfers to have checksums
1991/0303		*/
1991/0306		#define ENABCKSUM 1
1991/0331		#define ENABCKSUM 0
1991/0303
1990/1013		typedef struct Hotrod Hotrod;
Too many diffs (26 > 25). Stopping.