i82365_isa.c revision 1.17
1 /* $NetBSD: i82365_isa.c,v 1.17 2002/01/07 21:47:05 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Marc Horowitz. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: i82365_isa.c,v 1.17 2002/01/07 21:47:05 thorpej Exp $"); 34 35 #define PCICISADEBUG 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/extent.h> 41 #include <sys/malloc.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; 59 #define DPRINTF(arg) if (pcicisa_debug) printf arg; 60 #else 61 #define DPRINTF(arg) 62 #endif 63 64 int pcic_isa_probe __P((struct device *, struct cfdata *, void *)); 65 void pcic_isa_attach __P((struct device *, struct device *, void *)); 66 67 struct cfattach pcic_isa_ca = { 68 sizeof(struct pcic_isa_softc), pcic_isa_probe, pcic_isa_attach 69 }; 70 71 static struct pcmcia_chip_functions pcic_isa_functions = { 72 pcic_chip_mem_alloc, 73 pcic_chip_mem_free, 74 pcic_chip_mem_map, 75 pcic_chip_mem_unmap, 76 77 pcic_chip_io_alloc, 78 pcic_chip_io_free, 79 pcic_chip_io_map, 80 pcic_chip_io_unmap, 81 82 pcic_isa_chip_intr_establish, 83 pcic_isa_chip_intr_disestablish, 84 85 pcic_chip_socket_enable, 86 pcic_chip_socket_disable, 87 }; 88 89 int 90 pcic_isa_probe(parent, match, aux) 91 struct device *parent; 92 struct cfdata *match; 93 void *aux; 94 { 95 struct isa_attach_args *ia = aux; 96 bus_space_tag_t iot = ia->ia_iot; 97 bus_space_handle_t ioh, memh; 98 int val, found, msize; 99 100 if (ia->ia_nio < 1) 101 return (0); 102 if (ia->ia_niomem < 1) 103 return (0); 104 105 if (ISA_DIRECT_CONFIG(ia)) 106 return (0); 107 108 /* Disallow wildcarded i/o address. */ 109 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 110 return (0); 111 if (ia->ia_iomem[0].ir_addr == ISACF_IOMEM_DEFAULT) 112 return (0); 113 114 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) 115 return (0); 116 117 if (ia->ia_iomem[0].ir_size == ISACF_IOSIZ_DEFAULT) 118 msize = PCIC_MEMSIZE; 119 else 120 msize = ia->ia_iomem[0].ir_size; 121 122 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 123 msize, 0, &memh)) { 124 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 125 return (0); 126 } 127 128 found = 0; 129 130 /* 131 * this could be done with a loop, but it would violate the 132 * abstraction 133 */ 134 135 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT); 136 137 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 138 139 if (pcic_ident_ok(val)) 140 found++; 141 142 143 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT); 144 145 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 146 147 if (pcic_ident_ok(val)) 148 found++; 149 150 151 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT); 152 153 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 154 155 if (pcic_ident_ok(val)) 156 found++; 157 158 159 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT); 160 161 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 162 163 if (pcic_ident_ok(val)) 164 found++; 165 166 167 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 168 bus_space_unmap(ia->ia_memt, memh, msize); 169 170 if (!found) 171 return (0); 172 173 ia->ia_nio = 1; 174 ia->ia_io[0].ir_size = PCIC_IOSIZE; 175 176 ia->ia_niomem = 1; 177 ia->ia_iomem[0].ir_size = msize; 178 179 /* IRQ is special. */ 180 181 ia->ia_ndrq = 0; 182 183 return (1); 184 } 185 186 void 187 pcic_isa_attach(parent, self, aux) 188 struct device *parent, *self; 189 void *aux; 190 { 191 struct pcic_softc *sc = (void *) self; 192 struct pcic_isa_softc *isc = (void *) self; 193 struct isa_attach_args *ia = aux; 194 isa_chipset_tag_t ic = ia->ia_ic; 195 bus_space_tag_t iot = ia->ia_iot; 196 bus_space_tag_t memt = ia->ia_memt; 197 bus_space_handle_t ioh; 198 bus_space_handle_t memh; 199 200 /* Map i/o space. */ 201 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) { 202 printf(": can't map i/o space\n"); 203 return; 204 } 205 206 /* Map mem space. */ 207 if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, 208 ia->ia_iomem[0].ir_size, 0, &memh)) { 209 printf(": can't map mem space\n"); 210 return; 211 } 212 213 sc->membase = ia->ia_iomem[0].ir_addr; 214 sc->subregionmask = 215 (1 << (ia->ia_iomem[0].ir_size / PCIC_MEM_PAGESIZE)) - 1; 216 217 isc->sc_ic = ic; 218 sc->pct = (pcmcia_chipset_tag_t) & pcic_isa_functions; 219 220 sc->iot = iot; 221 sc->ioh = ioh; 222 sc->memt = memt; 223 sc->memh = memh; 224 if (ia->ia_nirq > 0) 225 sc->irq = ia->ia_irq[0].ir_irq; 226 else 227 sc->irq = ISACF_IRQ_DEFAULT; 228 229 printf("\n"); 230 231 pcic_attach(sc); 232 pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_io[0].ir_addr, 233 PCIC_IOSIZE); 234 pcic_attach_sockets(sc); 235 236 config_interrupts(self, pcic_isa_config_interrupts); 237 } 238
Indexes created Sun Sep 28 16:09:52 GMT 2025