1 /* $NetBSD: lpt_ebus.c,v 1.16 2002/10/02 16:02:18 thorpej 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 CFATTACH_DECL(lpt_ebus, sizeof(struct lpt_softc), 52 lpt_ebus_match, lpt_ebus_attach, NULL, NULL); 53 54 #define ROM_LPT_NAME "ecpp" 55 56 int 57 lpt_ebus_match(parent, match, aux) 58 struct device *parent; 59 struct cfdata *match; 60 void *aux; 61 { 62 struct ebus_attach_args *ea = aux; 63 64 if (strcmp(ea->ea_name, ROM_LPT_NAME) == 0) 65 return (1); 66 67 return (0); 68 } 69 70 void 71 lpt_ebus_attach(parent, self, aux) 72 struct device *parent, *self; 73 void *aux; 74 { 75 struct lpt_softc *sc = (void *)self; 76 struct ebus_attach_args *ea = aux; 77 int i; 78 79 sc->sc_iot = ea->ea_bustag; 80 /* 81 * Addresses that should be supplied by the prom: 82 * - normal lpt registers 83 * - ns873xx configuration registers 84 * - DMA space 85 * The `lpt' driver does not use DMA accesses, so we can 86 * ignore that for now. We should enable the lpt port in 87 * the ns873xx registers here. XXX 88 * 89 * Use the prom address if there. 90 */ 91 if (ea->ea_nvaddr) 92 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 93 &sc->sc_ioh); 94 else if (bus_space_map(sc->sc_iot, 95 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 96 ea->ea_reg[0].size, 97 0, 98 &sc->sc_ioh) != 0) { 99 printf(": can't map register space\n"); 100 return; 101 } 102 103 for (i = 0; i < ea->ea_nintr; i++) 104 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 105 IPL_SERIAL, 0, lptintr, sc); 106 printf("\n"); 107 108 lpt_attach_subr(sc); 109 } 110