1 /* $NetBSD: lpt_ofisa.c,v 1.7 2002/10/02 16:34:29 thorpej 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/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: lpt_ofisa.c,v 1.7 2002/10/02 16:34:29 thorpej Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/device.h> 45 #include <sys/systm.h> 46 #include <sys/tty.h> 47 48 #include <machine/intr.h> 49 #include <machine/bus.h> 50 51 #include <dev/ofw/openfirm.h> 52 #include <dev/isa/isavar.h> 53 #include <dev/ofisa/ofisavar.h> 54 55 #include <dev/ic/lptreg.h> 56 #include <dev/ic/lptvar.h> 57 58 struct lpt_ofisa_softc { 59 struct lpt_softc sc_lpt; /* real "lpt" softc */ 60 61 /* OFW ISA-specific goo. */ 62 void *sc_ih; /* interrupt handler */ 63 }; 64 65 int lpt_ofisa_probe __P((struct device *, struct cfdata *, void *)); 66 void lpt_ofisa_attach __P((struct device *, struct device *, void *)); 67 68 CFATTACH_DECL(lpt_ofisa, sizeof(struct lpt_ofisa_softc), 69 lpt_ofisa_probe, lpt_ofisa_attach, NULL, NULL); 70 71 int 72 lpt_ofisa_probe(parent, cf, aux) 73 struct device *parent; 74 struct cfdata *cf; 75 void *aux; 76 { 77 struct ofisa_attach_args *aa = aux; 78 static const char *const compatible_strings[] = { "pnpPNP,401", NULL }; 79 int rv = 0; 80 81 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 82 rv = 5; 83 #ifdef _LPT_OFISA_MD_MATCH 84 if (!rv) 85 rv = lpt_ofisa_md_match(parent, cf, aux); 86 #endif 87 return (rv); 88 } 89 90 void 91 lpt_ofisa_attach(parent, self, aux) 92 struct device *parent, *self; 93 void *aux; 94 { 95 struct lpt_ofisa_softc *osc = (void *)self; 96 struct lpt_softc *sc = &osc->sc_lpt; 97 struct ofisa_attach_args *aa = aux; 98 struct ofisa_reg_desc reg; 99 struct ofisa_intr_desc intr; 100 int n; 101 102 /* 103 * We're living on an ofw. We have to ask the OFW what our 104 * registers and interrupts properties look like. 105 * 106 * We expect exactly one register region and one interrupt. 107 */ 108 109 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 110 #ifdef _LPT_OFISA_MD_REG_FIXUP 111 n = lpt_ofisa_md_reg_fixup(parent, self, aux, ®, 1, n); 112 #endif 113 if (n != 1) { 114 printf(": error getting register data\n"); 115 return; 116 } 117 if (reg.len != 4 && reg.len != 8) { 118 printf(": weird register size (%lu, expected 4 or 8)\n", 119 (unsigned long)reg.len); 120 return; 121 } 122 123 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 124 #ifdef _LPT_OFISA_MD_INTR_FIXUP 125 n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 126 #endif 127 if (n != 1) { 128 printf(": error getting interrupt data\n"); 129 return; 130 } 131 132 sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 133 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 134 printf(": can't map register space\n"); 135 return; 136 } 137 138 osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 139 IPL_TTY, lptintr, sc); 140 141 printf("\n"); 142 143 lpt_attach_subr(sc); 144 145 #if 0 146 printf("%s: registers: ", sc->sc_dev.dv_xname); 147 ofisa_reg_print(®, 1); 148 printf("\n"); 149 printf("%s: interrupts: ", sc->sc_dev.dv_xname); 150 ofisa_intr_print(&intr, 1); 151 printf("\n"); 152 #endif 153 } 154