1 /* $NetBSD: lpt_ebus.c,v 1.22 2008/05/29 14:51:26 mrg 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * NS Super I/O PC87332VLJ "lpt" to ebus attachment 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: lpt_ebus.c,v 1.22 2008/05/29 14:51:26 mrg Exp $"); 35 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/tty.h> 41 42 #include <machine/bus.h> 43 44 #include <dev/ebus/ebusreg.h> 45 #include <dev/ebus/ebusvar.h> 46 47 #include <dev/ic/lptvar.h> 48 49 int lpt_ebus_match(device_t, cfdata_t , void *); 50 void lpt_ebus_attach(device_t, device_t, void *); 51 52 CFATTACH_DECL_NEW(lpt_ebus, sizeof(struct lpt_softc), 53 lpt_ebus_match, lpt_ebus_attach, NULL, NULL); 54 55 #define ROM_LPT_NAME "ecpp" 56 57 int 58 lpt_ebus_match(device_t parent, cfdata_t match, void *aux) 59 { 60 struct ebus_attach_args *ea = aux; 61 62 if (strcmp(ea->ea_name, ROM_LPT_NAME) == 0) 63 return (1); 64 65 return (0); 66 } 67 68 void 69 lpt_ebus_attach(device_t parent, device_t self, void *aux) 70 { 71 struct lpt_softc *sc = device_private(self); 72 struct ebus_attach_args *ea = aux; 73 int i; 74 75 sc->sc_dev = self; 76 sc->sc_iot = ea->ea_bustag; 77 /* 78 * Addresses that should be supplied by the prom: 79 * - normal lpt registers 80 * - ns873xx configuration registers 81 * - DMA space 82 * The `lpt' driver does not use DMA accesses, so we can 83 * ignore that for now. We should enable the lpt port in 84 * the ns873xx registers here. XXX 85 * 86 * Use the prom address if there. 87 */ 88 if (ea->ea_nvaddr) 89 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 90 &sc->sc_ioh); 91 else if (bus_space_map(sc->sc_iot, 92 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 93 ea->ea_reg[0].size, 94 0, 95 &sc->sc_ioh) != 0) { 96 aprint_error(": can't map register space\n"); 97 return; 98 } 99 100 for (i = 0; i < ea->ea_nintr; i++) 101 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 102 IPL_SERIAL, lptintr, sc); 103 aprint_normal("\n"); 104 105 lpt_attach_subr(sc); 106 } 107