2002/0506/pc/psaux.c (diff list | history)

pc/psaux.c on 2002/0506
2002/0506		/* * Interface to raw PS/2 aux port. * Used by user-level mouse daemon. */ #include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "../port/error.h" #include "io.h" #define Image IMAGE #include <draw.h> #include <memdraw.h> #include <cursor.h> #include "screen.h" /* * BUG: we ignore shift here. * we need a more general solution, * one that will also work for serial mice. */ Queue *psauxq; static void psauxputc(int c, int) { uchar uc; uc = c; qproduce(psauxq, &uc, 1); } static long psauxread(Chan*, void *a, long n, vlong) { return qread(psauxq, a, n); } static long psauxwrite(Chan*, void *a, long n, vlong) { return i8042auxcmds(a, n); } void psauxlink(void) { psauxq = qopen(1024, 0, 0, 0); if(psauxq == nil) panic("psauxlink"); qnoblock(psauxq, 1); i8042auxenable(psauxputc); addarchfile("psaux", DMEXCL|0660, psauxread, psauxwrite); }