i82365_isa.c revision 1.10
1 /* $NetBSD: i82365_isa.c,v 1.10 1998/06/07 18:28:31 sommerfe Exp $ */ 2 3 #define PCICISADEBUG 4 5 /* 6 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Marc Horowitz. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/types.h> 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/extent.h> 39 #include <sys/malloc.h> 40 41 #include <vm/vm.h> 42 43 #include <machine/bus.h> 44 #include <machine/intr.h> 45 46 #include <dev/isa/isareg.h> 47 #include <dev/isa/isavar.h> 48 49 #include <dev/pcmcia/pcmciareg.h> 50 #include <dev/pcmcia/pcmciavar.h> 51 #include <dev/pcmcia/pcmciachip.h> 52 53 #include <dev/ic/i82365reg.h> 54 #include <dev/ic/i82365var.h> 55 #include <dev/isa/i82365_isavar.h> 56 57 #ifdef PCICISADEBUG 58 int pcicisa_debug = 0 /* XXX */ ; 59 #define DPRINTF(arg) if (pcicisa_debug) printf arg; 60 #else 61 #define DPRINTF(arg) 62 #endif 63 64 #ifdef __BROKEN_INDIRECT_CONFIG 65 int pcic_isa_probe __P((struct device *, void *, void *)); 66 #else 67 int pcic_isa_probe __P((struct device *, struct cfdata *, void *)); 68 #endif 69 void pcic_isa_attach __P((struct device *, struct device *, void *)); 70 71 void *pcic_isa_chip_intr_establish __P((pcmcia_chipset_handle_t, 72 struct pcmcia_function *, int, int (*) (void *), void *)); 73 void pcic_isa_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *)); 74 75 struct cfattach pcic_isa_ca = { 76 sizeof(struct pcic_softc), pcic_isa_probe, pcic_isa_attach 77 }; 78 79 static struct pcmcia_chip_functions pcic_isa_functions = { 80 pcic_chip_mem_alloc, 81 pcic_chip_mem_free, 82 pcic_chip_mem_map, 83 pcic_chip_mem_unmap, 84 85 pcic_chip_io_alloc, 86 pcic_chip_io_free, 87 pcic_chip_io_map, 88 pcic_chip_io_unmap, 89 90 pcic_isa_chip_intr_establish, 91 pcic_isa_chip_intr_disestablish, 92 93 pcic_chip_socket_enable, 94 pcic_chip_socket_disable, 95 }; 96 97 int 98 pcic_isa_probe(parent, match, aux) 99 struct device *parent; 100 #ifdef __BROKEN_INDIRECT_CONFIG 101 void *match; 102 #else 103 struct cfdata *match; 104 #endif 105 void *aux; 106 { 107 struct isa_attach_args *ia = aux; 108 bus_space_tag_t iot = ia->ia_iot; 109 bus_space_handle_t ioh, memh; 110 int val, found; 111 112 /* Disallow wildcarded i/o address. */ 113 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 114 return (0); 115 116 if (bus_space_map(iot, ia->ia_iobase, PCIC_IOSIZE, 0, &ioh)) 117 return (0); 118 119 if (ia->ia_msize == -1) 120 ia->ia_msize = PCIC_MEMSIZE; 121 122 if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) 123 return (0); 124 125 found = 0; 126 127 /* 128 * this could be done with a loop, but it would violate the 129 * abstraction 130 */ 131 132 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT); 133 134 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 135 136 if (pcic_ident_ok(val)) 137 found++; 138 139 140 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT); 141 142 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 143 144 if (pcic_ident_ok(val)) 145 found++; 146 147 148 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT); 149 150 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 151 152 if (pcic_ident_ok(val)) 153 found++; 154 155 156 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT); 157 158 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 159 160 if (pcic_ident_ok(val)) 161 found++; 162 163 164 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 165 bus_space_unmap(ia->ia_memt, memh, ia->ia_msize); 166 167 if (!found) 168 return (0); 169 170 ia->ia_iosize = PCIC_IOSIZE; 171 172 return (1); 173 } 174 175 void 176 pcic_isa_attach(parent, self, aux) 177 struct device *parent, *self; 178 void *aux; 179 { 180 struct pcic_softc *sc = (void *) self; 181 struct isa_attach_args *ia = aux; 182 isa_chipset_tag_t ic = ia->ia_ic; 183 bus_space_tag_t iot = ia->ia_iot; 184 bus_space_tag_t memt = ia->ia_memt; 185 bus_space_handle_t ioh; 186 bus_space_handle_t memh; 187 188 /* Map i/o space. */ 189 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 190 printf(": can't map i/o space\n"); 191 return; 192 } 193 194 /* Map mem space. */ 195 if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) { 196 printf(": can't map mem space\n"); 197 return; 198 } 199 200 sc->membase = ia->ia_maddr; 201 sc->subregionmask = (1 << (ia->ia_msize / PCIC_MEM_PAGESIZE)) - 1; 202 203 sc->intr_est = ic; 204 sc->pct = (pcmcia_chipset_tag_t) & pcic_isa_functions; 205 206 sc->iot = iot; 207 sc->ioh = ioh; 208 sc->memt = memt; 209 sc->memh = memh; 210 211 /* 212 * allocate an irq. it will be used by both controllers. I could 213 * use two different interrupts, but interrupts are relatively 214 * scarce, shareable, and for PCIC controllers, very infrequent. 215 */ 216 217 if ((sc->irq = ia->ia_irq) == IRQUNK) { 218 if (isa_intr_alloc(ic, 219 PCIC_CSC_INTR_IRQ_VALIDMASK & pcic_isa_intr_alloc_mask, 220 IST_EDGE, &sc->irq)) { 221 printf("\n%s: can't allocate interrupt\n", 222 sc->dev.dv_xname); 223 return; 224 } 225 printf(": using irq %d", sc->irq); 226 } 227 printf("\n"); 228 229 pcic_attach(sc); 230 231 pcic_isa_bus_width_probe (sc, iot, ioh, ia->ia_iobase, ia->ia_iosize); 232 233 sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY, 234 pcic_intr, sc); 235 if (sc->ih == NULL) { 236 printf("%s: can't establish interrupt\n", sc->dev.dv_xname); 237 return; 238 } 239 240 pcic_attach_sockets(sc); 241 } 242
Indexes created Mon Sep 29 03:10:08 GMT 2025