1 /* $NetBSD: lpt_ofisa.c,v 1.15 2012/10/27 17:18:27 chs 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 1.15 2012/10/27 17:18:27 chs 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 <sys/intr.h> 49 #include <sys/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(device_t, cfdata_t , void *); 66 void lpt_ofisa_attach(device_t, device_t, void *); 67 68 CFATTACH_DECL_NEW(lpt_ofisa, sizeof(struct lpt_ofisa_softc), 69 lpt_ofisa_probe, lpt_ofisa_attach, NULL, NULL); 70 71 int 72 lpt_ofisa_probe(device_t parent, cfdata_t cf, void *aux) 73 { 74 struct ofisa_attach_args *aa = aux; 75 static const char *const compatible_strings[] = { "pnpPNP,401", NULL }; 76 int rv = 0; 77 78 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 79 rv = 5; 80 #ifdef _LPT_OFISA_MD_MATCH 81 if (!rv) 82 rv = lpt_ofisa_md_match(parent, cf, aux); 83 #endif 84 return (rv); 85 } 86 87 void 88 lpt_ofisa_attach(device_t parent, device_t self, void *aux) 89 { 90 struct lpt_ofisa_softc *osc = device_private(self); 91 struct lpt_softc *sc = &osc->sc_lpt; 92 struct ofisa_attach_args *aa = aux; 93 struct ofisa_reg_desc reg; 94 struct ofisa_intr_desc intr; 95 int n; 96 97 /* 98 * We're living on an ofw. We have to ask the OFW what our 99 * registers and interrupts properties look like. 100 * 101 * We expect exactly one register region and one interrupt. 102 */ 103 104 sc->sc_dev = self; 105 106 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 107 #ifdef _LPT_OFISA_MD_REG_FIXUP 108 n = lpt_ofisa_md_reg_fixup(parent, self, aux, ®, 1, n); 109 #endif 110 if (n != 1) { 111 aprint_error(": error getting register data\n"); 112 return; 113 } 114 if (reg.len != 4 && reg.len != 8) { 115 aprint_error(": weird register size (%lu, expected 4 or 8)\n", 116 (unsigned long)reg.len); 117 return; 118 } 119 120 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 121 #ifdef _LPT_OFISA_MD_INTR_FIXUP 122 n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); 123 #endif 124 if (n != 1) { 125 aprint_error(": error getting interrupt data\n"); 126 return; 127 } 128 129 sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt; 130 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 131 aprint_error(": can't map register space\n"); 132 return; 133 } 134 135 osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share, 136 IPL_TTY, lptintr, sc); 137 138 aprint_normal("\n"); 139 140 lpt_attach_subr(sc); 141 142 #if 0 143 printf("%s: registers: ", device_xname(sc->sc_dev)); 144 ofisa_reg_print(®, 1); 145 printf("\n"); 146 printf("%s: interrupts: ", device_xname(sc->sc_dev)); 147 ofisa_intr_print(&intr, 1); 148 printf("\n"); 149 #endif 150 } 151