/* $NetBSD: com_eumb.c,v 1.4 2008/04/28 20:23:34 martin Exp $ */ /*- * Copyright (c) 2007 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Tohru Nishimura. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: com_eumb.c,v 1.4 2008/04/28 20:23:34 martin Exp $"); #include <sys/param.h> #include <sys/device.h> #include <sys/tty.h> #include <sys/systm.h> #include <machine/bus.h> #include <machine/intr.h> #include <dev/ic/comreg.h> #include <dev/ic/comvar.h> #include <sandpoint/sandpoint/eumbvar.h> #include "locators.h" static int com_eumb_match(device_t, cfdata_t , void *); static void com_eumb_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(com_eumb, sizeof(struct com_softc), com_eumb_match, com_eumb_attach, NULL, NULL); static int found; static struct com_regs cnregs; /* * There are two different UART configurations, single 4-wire UART * and dual 2-wire. DCR register selects one of the two operating * mode. A certain group of NAS boxes uses the 2nd UART as system * console while the 1st to communicate power management satellite * processor. "unit" locator helps to reverse the two. Default is a * single 4-wire UART as console. */ int com_eumb_match(device_t parent, cfdata_t cf, void *aux) { struct eumb_attach_args *eaa = aux; int unit = eaa->eumb_unit; if (unit == EUMBCF_UNIT_DEFAULT && found == 0) return (1); if (unit == 0 || unit == 1) return (1); return (0); } void com_eumb_attach(device_t parent, device_t self, void *aux) { struct com_softc *sc = device_private(self); struct eumb_attach_args *eaa = aux; int comaddr, epicirq; bus_space_handle_t ioh; extern u_long ticks_per_sec; sc->sc_dev = self; found = 1; comaddr = (eaa->eumb_unit == 1) ? 0x4600 : 0x4500; if (comaddr == cnregs.cr_iobase) sc->sc_regs = cnregs; else { ioh = comaddr; bus_space_map(eaa->eumb_bt, comaddr, COM_NPORTS, 0, &ioh); COM_INIT_REGS(sc->sc_regs, eaa->eumb_bt, ioh, comaddr); } sc->sc_frequency = 4 * ticks_per_sec; epicirq = (eaa->eumb_unit == 1) ? 25 : 24; com_attach_subr(sc); intr_establish(epicirq + 16, IST_LEVEL, IPL_SERIAL, comintr, sc); } int eumbcnattach(bus_space_tag_t tag, int conaddr, int conspeed, int confreq, int contype, int conmode) { static int attached = 0; if (attached) return 0; attached = 1; cnregs.cr_iot = tag; cnregs.cr_iobase = conaddr; cnregs.cr_nports = COM_NPORTS; /* cnregs.ioh is initialized by comcnattach */ return comcnattach1(&cnregs, conspeed, confreq, contype, conmode); }