1 /* $NetBSD: lpt_ebus.c,v 1.20 2006/02/11 17:57:31 cdi 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/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: lpt_ebus.c,v 1.20 2006/02/11 17:57:31 cdi Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/tty.h> 43 44 #include <machine/bus.h> 45 46 #include <dev/ebus/ebusreg.h> 47 #include <dev/ebus/ebusvar.h> 48 49 #include <dev/ic/lptvar.h> 50 51 int lpt_ebus_match(struct device *, struct cfdata *, void *); 52 void lpt_ebus_attach(struct device *, struct device *, void *); 53 54 CFATTACH_DECL(lpt_ebus, sizeof(struct lpt_softc), 55 lpt_ebus_match, lpt_ebus_attach, NULL, NULL); 56 57 #define ROM_LPT_NAME "ecpp" 58 59 int 60 lpt_ebus_match(struct device *parent, struct cfdata *match, 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(struct device *parent, struct device *self, void *aux) 72 { 73 struct lpt_softc *sc = (void *)self; 74 struct ebus_attach_args *ea = aux; 75 int i; 76 77 sc->sc_iot = ea->ea_bustag; 78 /* 79 * Addresses that should be supplied by the prom: 80 * - normal lpt registers 81 * - ns873xx configuration registers 82 * - DMA space 83 * The `lpt' driver does not use DMA accesses, so we can 84 * ignore that for now. We should enable the lpt port in 85 * the ns873xx registers here. XXX 86 * 87 * Use the prom address if there. 88 */ 89 if (ea->ea_nvaddr) 90 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 91 &sc->sc_ioh); 92 else if (bus_space_map(sc->sc_iot, 93 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 94 ea->ea_reg[0].size, 95 0, 96 &sc->sc_ioh) != 0) { 97 printf(": can't map register space\n"); 98 return; 99 } 100 101 for (i = 0; i < ea->ea_nintr; i++) 102 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 103 IPL_SERIAL, lptintr, sc); 104 printf("\n"); 105 106 lpt_attach_subr(sc); 107 } 108