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Annotation of funnyos/arch/testarm/dev/tartc.c, Revision 1.2

1.1       init        1: /*
1.2     ! init        2:  * $Id: tartc.c,v 1.1.1.1 2007/10/16 08:41:04 init Exp $
1.1       init        3:  */
                      4: #include <sys/types.h>
                      5: #include <sys/device.h>
1.2     ! init        6: #include <sys/bus.h>
        !             7:
        !             8: #include <arch/testarm/dev/tartcvar.h>
        !             9: #include <arch/testarm/dev/tartcreg.h>
1.1       init       10: #include <libkern/printf.h>
                     11:
                     12: /*
                     13:  * testarm Real Time Clock driver.
                     14:  */
1.2     ! init       15: int    tartc_attach(struct device *, uint32_t loc, uint8_t flags);
        !            16:
        !            17:
        !            18: struct driver tartc_dr = {
        !            19:        sizeof(struct tartc_dd),
        !            20:        tartc_attach,
        !            21:        NULL
        !            22: };
1.1       init       23:
                     24:
                     25: int
1.2     ! init       26: tartc_attach(struct device *self, uint32_t loc, uint8_t flags)
1.1       init       27: {
1.2     ! init       28:        struct tartc_dd *ddp = self->dv_devdata;
        !            29:        uint32_t seconds;
1.1       init       30:
1.2     ! init       31:        /* acquire bus_handle from parent */
        !            32:        ddp->td_bushandlep = self->dv_parent->dv_aux;
        !            33:
        !            34:        /* save our location on parent (or use default if loc == 0) */
        !            35:        ddp->td_ioaddr = (loc != 0) ? loc : TARTC_REG_BASE;
        !            36:
        !            37:        /*
        !            38:         * Read seconds past Epoch.
        !            39:         */
        !            40:        /* trigger clock update on host */
        !            41:        bus_write_1(ddp->td_bushandlep, ddp->td_ioaddr + TARTC_OFF_CLOCKUPDATE, 1);
        !            42:
        !            43:        /* get seconds past Epoch */
        !            44:        seconds = bus_read_4(ddp->td_bushandlep, ddp->td_ioaddr + TARTC_OFF_READSECONDS);
        !            45:
        !            46:        printf("testarm Real Time Clock (%d seconds past Epoch)\n", seconds);
1.1       init       47:
                     48:        return(0);
                     49:
                     50: }
                     51: