1999/0506/alphapc/devfloppy.c (diff list | history)

1999/0504/sys/src/9/alphapc/devfloppy.c:39,45 – 1999/0506/sys/src/9/alphapc/devfloppy.c:39,45 (short | long | prev | next)
1999/0415		}; #define DPRINT if(floppydebug)print
1999/0501		int floppydebug = 1;
1999/0506		int floppydebug = 0;
1999/0415		/* * types of drive (from PC equipment byte)
1999/0504/sys/src/9/alphapc/devfloppy.c:106,112 – 1999/0506/sys/src/9/alphapc/devfloppy.c:106,113
1999/0415		static long floppyxfer(FDrive*, int, void*, long, long); Dirtab floppydir[]={ "fd0disk", {Qdata + 0}, 0, 0660,
1999/0506		// "fd0disk", {Qdata + 0}, 0, 0660, "fd0disk", {Qdata + 0}, 0, 0666,
1999/0415		"fd0ctl", {Qctl + 0}, 0, 0660, "fd1disk", {Qdata + 1}, 0, 0660, "fd1ctl", {Qctl + 1}, 0, 0660,
1999/0504/sys/src/9/alphapc/devfloppy.c:535,541 – 1999/0506/sys/src/9/alphapc/devfloppy.c:536,541
1999/0415		microdelay(8); /* for machine independence */ } outb(Pfdata, fl.cmd[i]);
1999/0501		microdelay(8); /* for machine independence */
1999/0415		} return 0; }
1999/0504/sys/src/9/alphapc/devfloppy.c:639,649 – 1999/0506/sys/src/9/alphapc/devfloppy.c:639,645
1999/0415		static void floppywait(void) {
1999/0501		vlong t0, t1; t0 = fastticks(nil);
1999/0415		tsleep(&fl.r, cmddone, 0, 5000);
1999/0501		t1 = fastticks(nil); print("wait %lld ticks\n", t1-t0);
1999/0415		if(!cmddone(0)){ floppyintr(0); fl.confused = 1;
1999/0504/sys/src/9/alphapc/devfloppy.c:688,693 – 1999/0506/sys/src/9/alphapc/devfloppy.c:684,709
1999/0415		}
1999/0501		static void
1999/0506		dumpreg(void) { int i; fl.ncmd = 0; fl.cmd[fl.ncmd++] = Fdumpreg; if(floppycmd() < 0) return; floppywait(); if(fl.nstat < 0){ print("dumpreg bad %d\n", fl.nstat); fldump(); return; } for(i = 0; i < fl.nstat; i++) print(" %2.2uX", fl.stat[i]); print("\n"); } static void
1999/0501		specify(void) { fl.ncmd = 0;
1999/0504/sys/src/9/alphapc/devfloppy.c:794,800 – 1999/0506/sys/src/9/alphapc/devfloppy.c:810,816
1999/0415		/* retry on error (until it gets ridiculous) */ tries = 0; while(waserror()){
1999/0501		if(tries++ > 2/*0*/)
1999/0506		if(tries++ > 20)
1999/0415		nexterror(); DPRINT("floppyxfer: retrying\n"); /*floppyon(dp);*/
1999/0504/sys/src/9/alphapc/devfloppy.c:840,848 – 1999/0506/sys/src/9/alphapc/devfloppy.c:856,861
1999/0415		/* * give bus to DMA, floppyintr() will read result */
1999/0501		delay(10); print("msr 0x%2.2uX\n", inb(Pmsr));
1999/0504		xdmastatus(DMAchan);
1999/0415		floppywait(); dmaend(DMAchan); poperror();