1 /* $NetBSD: lpt_ebus.c,v 1.12 2002/03/21 01:17:08 eeh Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * NS Super I/O PC87332VLJ "lpt" to ebus attachment 33 */ 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 #include <sys/tty.h> 40 41 #include <machine/bus.h> 42 43 #include <dev/ebus/ebusreg.h> 44 #include <dev/ebus/ebusvar.h> 45 46 #include <dev/ic/lptvar.h> 47 48 int lpt_ebus_match __P((struct device *, struct cfdata *, void *)); 49 void lpt_ebus_attach __P((struct device *, struct device *, void *)); 50 51 struct cfattach lpt_ebus_ca = { 52 sizeof(struct lpt_softc), lpt_ebus_match, lpt_ebus_attach 53 }; 54 55 #define ROM_LPT_NAME "ecpp" 56 57 int 58 lpt_ebus_match(parent, match, aux) 59 struct device *parent; 60 struct cfdata *match; 61 void *aux; 62 { 63 struct ebus_attach_args *ea = aux; 64 65 if (strcmp(ea->ea_name, ROM_LPT_NAME) == 0) 66 return (1); 67 68 return (0); 69 } 70 71 void 72 lpt_ebus_attach(parent, self, aux) 73 struct device *parent, *self; 74 void *aux; 75 { 76 struct lpt_softc *sc = (void *)self; 77 struct ebus_attach_args *ea = aux; 78 int i; 79 80 sc->sc_iot = ea->ea_bustag; 81 /* 82 * Addresses that shoud be supplied by the prom: 83 * - normal lpt registers 84 * - ns873xx configuration registers 85 * - DMA space 86 * The `lpt' driver does not use DMA accesses, so we can 87 * ignore that for now. We should enable the lpt port in 88 * the ns873xx registers here. XXX 89 * 90 * Use the prom address if there. 91 */ 92 if (ea->ea_nvaddr) 93 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 94 &sc->sc_ioh); 95 else if (bus_space_map(sc->sc_iot, 96 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 97 ea->ea_reg[0].size, 98 0, 99 &sc->sc_ioh) != 0) { 100 printf(": can't map register space\n"); 101 return; 102 } 103 104 for (i = 0; i < ea->ea_nintr; i++) 105 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 106 IPL_SERIAL, 0, lptintr, sc); 107 printf("\n"); 108 109 lpt_attach_subr(sc); 110 } 111