1 /* $NetBSD: lpt_ofisa.c,v 1.2 1998/03/21 02:06:17 cgd Exp $ */ 2 3 /* 4 * Copyright 1997, 1998 5 * Digital Equipment Corporation. All rights reserved. 6 * 7 * This software is furnished under license and may be used and 8 * copied only in accordance with the following terms and conditions. 9 * Subject to these conditions, you may download, copy, install, 10 * use, modify and distribute this software in source and/or binary 11 * form. No title or ownership is transferred hereby. 12 * 13 * 1) Any source code used, modified or distributed must reproduce 14 * and retain this copyright notice and list of conditions as 15 * they appear in the source file. 16 * 17 * 2) No right is granted to use any trade name, trademark, or logo of 18 * Digital Equipment Corporation. Neither the "Digital Equipment 19 * Corporation" name nor any trademark or logo of Digital Equipment 20 * Corporation may be used to endorse or promote products derived 21 * from this software without the prior written permission of 22 * Digital Equipment Corporation. 23 * 24 * 3) This software is provided "AS-IS" and any express or implied 25 * warranties, including but not limited to, any implied warranties 26 * of merchantability, fitness for a particular purpose, or 27 * non-infringement are disclaimed. In no event shall DIGITAL be 28 * liable for any damages whatsoever, and in particular, DIGITAL 29 * shall not be liable for special, indirect, consequential, or 30 * incidental damages or damages for lost profits, loss of 31 * revenue or loss of use, whether such damages arise in contract, 32 * negligence, tort, under statute, in equity, at law or otherwise, 33 * even if advised of the possibility of such damage. 34 */ 35 36 /* 37 * OFW Attachment for 'lpt' parallel port driver 38 */ 39 40 #include <sys/param.h> 41 #include <sys/device.h> 42 #include <sys/systm.h> 43 #include <sys/tty.h> 44 45 #include <machine/intr.h> 46 #include <machine/bus.h> 47 48 #include <dev/ofw/openfirm.h> 49 #include <dev/isa/isavar.h> 50 #include <dev/ofisa/ofisavar.h> 51 52 #include <dev/ic/lptreg.h> 53 #include <dev/ic/lptvar.h> 54 55 struct lpt_ofisa_softc { 56 struct lpt_softc sc_lpt; /* real "lpt" softc */ 57 58 /* OFW ISA-specific goo. */ 59 void *sc_ih; /* interrupt handler */ 60 }; 61 62 int lpt_ofisa_probe __P((struct device *, struct cfdata *, void *)); 63 void lpt_ofisa_attach __P((struct device *, struct device *, void *)); 64 65 struct cfattach lpt_ofisa_ca = { 66 sizeof(struct lpt_ofisa_softc), lpt_ofisa_probe, lpt_ofisa_attach 67 }; 68 69 int 70 lpt_ofisa_probe(parent, cf, aux) 71 struct device *parent; 72 struct cfdata *cf; 73 void *aux; 74 { 75 struct ofisa_attach_args *aa = aux; 76 const char *compatible_strings[] = { "pnpPNP,401", NULL }; 77 int rv = 0; 78 79 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 80 rv = 5; 81 #ifdef _LPT_OFISA_MD_MATCH 82 if (!rv) 83 rv = lpt_ofisa_md_match(parent, cf, aux); 84 #endif 85 return (rv); 86 } 87 88 void 89 lpt_ofisa_attach(parent, self, aux) 90 struct device *parent, *self; 91 void *aux; 92 { 93 struct lpt_ofisa_softc *osc = (void *)self; 94 struct lpt_softc *sc = &osc->sc_lpt; 95 struct ofisa_attach_args *aa = aux; 96 struct ofisa_reg_desc reg; 97 struct ofisa_intr_desc intr; 98 int n; 99 100 /* 101 * We're living on an ofw. We have to ask the OFW what our 102 * registers and interrupts properties look like. 103 * 104 * We expect exactly one register region and one interrupt. 105 */ 106 107 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 108 #ifdef _LPT_OFISA_MD_REG_FIXUP 109 n = lpt_ofisa_md_reg_fixup(parent, self, aux, ®, 1, n); 110 #endif 111 if (n != 1) { 112 printf(": error getting register data\n"); 113 return; 114 } 115 if (reg.len != 4 && reg.len != 8) { 116 printf(": weird register size (%lu, expected 4 or 8)\n", 117 (unsigned long)reg.len); 118 return; 119 } 120 121 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 122 #ifdef _LPT_OFISA_MD_INTR_FIXUP 123 n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 124 #endif 125 if (n != 1) { 126 printf(": error getting interrupt data\n"); 127 return; 128 } 129 130 sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 131 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 132 printf(": can't map register space\n"); 133 return; 134 } 135 136 osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 137 IPL_TTY, lptintr, sc); 138 139 printf("\n"); 140 141 lpt_attach_subr(sc); 142 143 #if 0 144 printf("%s: registers: ", sc->sc_dev.dv_xname); 145 ofisa_reg_print(®, 1); 146 printf("\n"); 147 printf("%s: interrupts: ", sc->sc_dev.dv_xname); 148 ofisa_intr_print(&intr, 1); 149 printf("\n"); 150 #endif 151 } 152