1 /* $NetBSD: com_pnpbios.c,v 1.13 2006/11/16 01:32:39 christos Exp $ */ 2 /* 3 * Copyright (c) 1999 4 * Matthias Drochner. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: com_pnpbios.c,v 1.13 2006/11/16 01:32:39 christos Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/errno.h> 34 #include <sys/ioctl.h> 35 #include <sys/syslog.h> 36 #include <sys/device.h> 37 #include <sys/proc.h> 38 #include <sys/termios.h> 39 40 #include <machine/bus.h> 41 42 #include <dev/isa/isavar.h> 43 #include <dev/isa/isadmavar.h> 44 45 #include <i386/pnpbios/pnpbiosvar.h> 46 47 #include <dev/ic/comvar.h> 48 49 struct com_pnpbios_softc { 50 struct com_softc sc_com; 51 void *sc_ih; 52 }; 53 54 int com_pnpbios_match(struct device *, struct cfdata *, void *); 55 void com_pnpbios_attach(struct device *, struct device *, void *); 56 57 CFATTACH_DECL(com_pnpbios, sizeof(struct com_pnpbios_softc), 58 com_pnpbios_match, com_pnpbios_attach, NULL, NULL); 59 60 int 61 com_pnpbios_match(struct device *parent, struct cfdata *match, 62 void *aux) 63 { 64 struct pnpbiosdev_attach_args *aa = aux; 65 66 if (strcmp(aa->idstr, "PNP0500") && 67 strcmp(aa->idstr, "PNP0501") && 68 strcmp(aa->idstr, "PNP0510") && 69 strcmp(aa->idstr, "PNP0511")) 70 return (0); 71 72 return (1); 73 } 74 75 void 76 com_pnpbios_attach(struct device *parent, struct device *self, 77 void *aux) 78 { 79 struct com_pnpbios_softc *psc = (void *)self; 80 struct com_softc *sc = &psc->sc_com; 81 struct pnpbiosdev_attach_args *aa = aux; 82 bus_space_tag_t iot; 83 bus_space_handle_t ioh; 84 int iobase; 85 86 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) { 87 printf(": can't get iobase\n"); 88 return; 89 } 90 91 if ((!com_is_console(iot, iobase, &ioh)) && 92 pnpbios_io_map(aa->pbt, aa->resc, 0, &iot, &ioh)) { 93 printf(": can't map i/o space\n"); 94 return; 95 } 96 97 COM_INIT_REGS(sc->sc_regs, iot, ioh, iobase); 98 99 printf("\n"); 100 pnpbios_print_devres(self, aa); 101 102 printf("%s", self->dv_xname); 103 104 /* 105 * if the chip isn't something we recognise skip it. 106 */ 107 if (com_probe_subr(&sc->sc_regs) == 0) { 108 printf(": com probe failed\n"); 109 return; 110 } 111 112 sc->sc_frequency = 115200 * 16; 113 114 com_attach_subr(sc); 115 116 psc->sc_ih = pnpbios_intr_establish(aa->pbt, aa->resc, 0, IPL_SERIAL, 117 comintr, sc); 118 } 119