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mcclock_pad32.c revision 1.1 
      1 /*	XXX	*/
      2 
      3 #include <sys/param.h>
      4 #include <sys/kernel.h>
      5 #include <sys/systm.h>
      6 #include <sys/device.h>
      7 
      8 #include <alpha/alpha/clockvar.h>
      9 #include <alpha/alpha/mcclockvar.h>
     10 #include <dev/ic/mc146818reg.h>
     11 #include <dev/tc/tcreg.h>
     12 #include <dev/tc/tcvar.h>
     13 #include <dev/tc/ioasicvar.h>                   /* XXX */
     14 
     15 struct mcclock_ioasic_clockdatum {
     16 	u_char	datum;
     17 	char	pad[3];
     18 };
     19 
     20 struct mcclock_ioasic_softc {
     21 	struct mcclock_softc	sc_mcclock;
     22 
     23 	struct mcclock_ioasic_clockdatum *sc_dp;
     24 };
     25 
     26 int	mcclock_ioasic_match __P((struct device *, void *, void *));
     27 void	mcclock_ioasic_attach __P((struct device *, struct device *, void *));
     28 
     29 struct cfattach mcclock_ioasic_ca = {
     30 	sizeof (struct mcclock_ioasic_softc), mcclock_ioasic_match,
     31 	    mcclock_ioasic_attach,
     32 };
     33 
     34 void	mcclock_ioasic_write __P((struct mcclock_softc *, u_int, u_int));
     35 u_int	mcclock_ioasic_read __P((struct mcclock_softc *, u_int));
     36 
     37 const struct mcclock_busfns mcclock_ioasic_busfns = {
     38 	mcclock_ioasic_write, mcclock_ioasic_read,
     39 };
     40 
     41 int
     42 mcclock_ioasic_match(parent, match, aux)
     43 	struct device *parent;
     44 	void *match, *aux;
     45 {
     46 	struct ioasicdev_attach_args *d = aux;
     47 
     48 	if (strncmp("TOY_RTC ", d->iada_modname, TC_ROM_LLEN))
     49 		return (0);
     50 
     51 	return (1);
     52 }
     53 
     54 void
     55 mcclock_ioasic_attach(parent, self, aux)
     56 	struct device *parent, *self;
     57 	void *aux;
     58 {
     59 	struct ioasicdev_attach_args *ioasicdev = aux;
     60 	struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)self;
     61 
     62 	sc->sc_dp = (struct mcclock_ioasic_clockdatum *)ioasicdev->iada_addr;
     63 
     64 	mcclock_attach(&sc->sc_mcclock, &mcclock_ioasic_busfns);
     65 }
     66 
     67 void
     68 mcclock_ioasic_write(dev, reg, datum)
     69 	struct mcclock_softc *dev;
     70 	u_int reg, datum;
     71 {
     72 	struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
     73 
     74 	sc->sc_dp[reg].datum = datum;
     75 }
     76 
     77 u_int
     78 mcclock_ioasic_read(dev, reg)
     79 	struct mcclock_softc *dev;
     80 	u_int reg;
     81 {
     82 	struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
     83 
     84 	return (sc->sc_dp[reg].datum);
     85 }
     86