1 /* $NetBSD: pccons_isa.c,v 1.4 2002/10/02 04:59:48 thorpej Exp $ */ 2 /* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp */ 3 4 /* 5 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 6 * All rights reserved. 7 * 8 * Author: Chris G. Demetriou 9 * 10 * Permission to use, copy, modify and distribute this software and 11 * its documentation is hereby granted, provided that both the copyright 12 * notice and this permission notice appear in all copies of the 13 * software, derivative works or modified versions, and any portions 14 * thereof, and that both notices appear in supporting documentation. 15 * 16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 * 20 * Carnegie Mellon requests users of this software to return to 21 * 22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 23 * School of Computer Science 24 * Carnegie Mellon University 25 * Pittsburgh PA 15213-3890 26 * 27 * any improvements or extensions that they make and grant Carnegie the 28 * rights to redistribute these changes. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/device.h> 34 35 #include <machine/bus.h> 36 37 #include <dev/isa/isavar.h> 38 39 #include <arc/dev/pcconsvar.h> 40 #include <arc/isa/pccons_isavar.h> 41 42 int pccons_isa_match __P((struct device *, struct cfdata *, void *)); 43 void pccons_isa_attach __P((struct device *, struct device *, void *)); 44 45 CFATTACH_DECL(pc_isa, sizeof(struct pc_softc), 46 pccons_isa_match, pccons_isa_attach, NULL, NULL); 47 48 struct pccons_config *pccons_isa_conf; 49 50 int 51 pccons_isa_match(parent, match, aux) 52 struct device *parent; 53 struct cfdata *match; 54 void *aux; 55 { 56 struct isa_attach_args *ia = aux; 57 bus_addr_t iobase = 0x3b0; /* XXX mono 0x3b0 color 0x3c0 */ 58 bus_size_t iosize = 0x30; /* XXX 0x20 */ 59 bus_addr_t maddr = 0xa0000; 60 bus_size_t msize = 0x20000; 61 int irq = 1; 62 63 if (ia->ia_nio < 1) 64 return (0); 65 if (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT) 66 iobase = ia->ia_io[0].ir_addr; 67 #if 0 /* XXX isa.c */ 68 if (ia->ia_iosize != 0) 69 iosize = ia->ia_iosize; 70 #endif 71 if (ia->ia_niomem < 1) 72 return (0); 73 if (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT) 74 maddr = ia->ia_iomem[0].ir_addr; 75 if (ia->ia_iomem[0].ir_size != ISACF_IOSIZ_DEFAULT) 76 msize = ia->ia_iomem[0].ir_size; 77 78 if (ia->ia_nirq < 1) 79 return (0); 80 if (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT) 81 irq = ia->ia_irq[0].ir_irq; 82 83 #if 0 84 /* If values are hardwired to something that they can't be, punt. */ 85 if (iobase != 0x3b0 || iosize != 0x30 || 86 maddr != 0xa0000 || msize != 0x20000 || 87 ia->ia_irq != 1 || ia->ia_drq != DRQUNK) 88 return (0); 89 #endif 90 91 if (pccons_isa_conf == NULL) 92 return (0); 93 94 if (!pccons_common_match(ia->ia_iot, ia->ia_memt, ia->ia_iot, 95 pccons_isa_conf)) 96 return (0); 97 98 ia->ia_nio = 1; 99 ia->ia_io[0].ir_addr = iobase; 100 ia->ia_io[0].ir_size = iosize; 101 102 ia->ia_niomem = 1; 103 ia->ia_iomem[0].ir_addr = maddr; 104 ia->ia_iomem[0].ir_size = msize; 105 106 ia->ia_nirq = 1; 107 ia->ia_irq[0].ir_irq = irq; 108 109 ia->ia_ndrq = 0; 110 111 return (1); 112 } 113 114 void 115 pccons_isa_attach(parent, self, aux) 116 struct device *parent, *self; 117 void *aux; 118 { 119 struct pc_softc *sc = (struct pc_softc *)self; 120 struct isa_attach_args *ia = aux; 121 122 isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY, 123 pcintr, self); 124 pccons_common_attach(sc, ia->ia_iot, ia->ia_memt, ia->ia_iot, 125 pccons_isa_conf); 126 } 127 128 int 129 pccons_isa_cnattach(iot, memt) 130 bus_space_tag_t iot, memt; 131 { 132 if (pccons_isa_conf == NULL) 133 return (ENXIO); 134 135 pccons_common_cnattach(iot, memt, iot, pccons_isa_conf); 136 return (0); 137 } 138