/* * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 * The President and Fellows of Harvard College. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Code for attaching the (generic) rtclock device to the LAMEbus ltimer. * * rtclock is a generic clock interface that gets its clock service from * an actual hardware clock of some kind. (Theoretically it could also * get its clock service from a clock maintained in software, as is the * case on most systems. However, no such driver has been written yet.) * * ltimer can provide this clock service. */ #include <types.h> #include <lib.h> #include <generic/rtclock.h> #include <lamebus/ltimer.h> #include "autoconf.h" struct rtclock_softc * attach_rtclock_to_ltimer(int rtclockno, struct ltimer_softc *ls) { /* * No need to probe; ltimer always has a clock. * Just allocate the rtclock, set our fields, and return it. */ struct rtclock_softc *rtc = kmalloc(sizeof(struct rtclock_softc)); if (rtc==NULL) { /* Out of memory */ return NULL; } (void)rtclockno; // unused rtc->rtc_devdata = ls; rtc->rtc_gettime = ltimer_gettime; return rtc; }