i82365_isa.c revision 1.25
1 /* $NetBSD: i82365_isa.c,v 1.25 2006/09/02 17:02:57 christos 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 1.25 2006/09/02 17:02:57 christos 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(struct device *, struct cfdata *, void *); 65 void pcic_isa_attach(struct device *, struct device *, void *); 66 67 CFATTACH_DECL(pcic_isa, sizeof(struct pcic_isa_softc), 68 pcic_isa_probe, pcic_isa_attach, NULL, NULL); 69 70 static struct pcmcia_chip_functions pcic_isa_functions = { 71 pcic_chip_mem_alloc, 72 pcic_chip_mem_free, 73 pcic_chip_mem_map, 74 pcic_chip_mem_unmap, 75 76 pcic_chip_io_alloc, 77 pcic_chip_io_free, 78 pcic_chip_io_map, 79 pcic_chip_io_unmap, 80 81 pcic_isa_chip_intr_establish, 82 pcic_isa_chip_intr_disestablish, 83 84 pcic_chip_socket_enable, 85 pcic_chip_socket_disable, 86 pcic_chip_socket_settype, 87 NULL, 88 }; 89 90 int 91 pcic_isa_probe(parent, match, aux) 92 struct device *parent; 93 struct cfdata *match; 94 void *aux; 95 { 96 struct isa_attach_args *ia = aux; 97 bus_space_tag_t iot = ia->ia_iot; 98 bus_space_handle_t ioh, memh; 99 int val, found, msize; 100 101 if (ia->ia_nio < 1) 102 return (0); 103 if (ia->ia_niomem < 1) 104 return (0); 105 106 if (ISA_DIRECT_CONFIG(ia)) 107 return (0); 108 109 /* Disallow wildcarded i/o address. */ 110 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 111 return (0); 112 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) 113 return (0); 114 115 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) 116 return (0); 117 118 if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ) 119 msize = PCIC_MEMSIZE; 120 else 121 msize = ia->ia_iomem[0].ir_size; 122 123 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 124 msize, 0, &memh)) { 125 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 126 return (0); 127 } 128 129 found = 0; 130 131 /* 132 * this could be done with a loop, but it would violate the 133 * abstraction 134 */ 135 136 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT); 137 138 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 139 140 if (pcic_ident_ok(val)) 141 found++; 142 143 144 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT); 145 146 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 147 148 if (pcic_ident_ok(val)) 149 found++; 150 151 152 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT); 153 154 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 155 156 if (pcic_ident_ok(val)) 157 found++; 158 159 160 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT); 161 162 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 163 164 if (pcic_ident_ok(val)) 165 found++; 166 167 168 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 169 bus_space_unmap(ia->ia_memt, memh, msize); 170 171 if (!found) 172 return (0); 173 174 ia->ia_nio = 1; 175 ia->ia_io[0].ir_size = PCIC_IOSIZE; 176 177 ia->ia_niomem = 1; 178 ia->ia_iomem[0].ir_size = msize; 179 180 /* IRQ is special. */ 181 182 ia->ia_ndrq = 0; 183 184 return (1); 185 } 186 187 void 188 pcic_isa_attach(parent, self, aux) 189 struct device *parent, *self; 190 void *aux; 191 { 192 struct pcic_softc *sc = (void *) self; 193 struct pcic_isa_softc *isc = (void *) self; 194 struct isa_attach_args *ia = aux; 195 isa_chipset_tag_t ic = ia->ia_ic; 196 bus_space_tag_t iot = ia->ia_iot; 197 bus_space_tag_t memt = ia->ia_memt; 198 bus_space_handle_t ioh; 199 bus_space_handle_t memh; 200 201 /* Map i/o space. */ 202 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) { 203 printf(": can't map i/o space\n"); 204 return; 205 } 206 207 /* Map mem space. */ 208 if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, 209 ia->ia_iomem[0].ir_size, 0, &memh)) { 210 printf(": can't map mem space\n"); 211 return; 212 } 213 214 sc->membase = ia->ia_iomem[0].ir_addr; 215 sc->subregionmask = 216 (1 << (ia->ia_iomem[0].ir_size / PCIC_MEM_PAGESIZE)) - 1; 217 218 isc->sc_ic = ic; 219 sc->pct = (pcmcia_chipset_tag_t) & pcic_isa_functions; 220 221 sc->iot = iot; 222 sc->ioh = ioh; 223 sc->memt = memt; 224 sc->memh = memh; 225 if (ia->ia_nirq > 0) 226 sc->irq = ia->ia_irq[0].ir_irq; 227 else 228 sc->irq = ISA_UNKNOWN_IRQ; 229 230 printf("\n"); 231 232 pcic_attach(sc); 233 pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_io[0].ir_addr, 234 PCIC_IOSIZE); 235 pcic_attach_sockets(sc); 236 237 config_interrupts(self, pcic_isa_config_interrupts); 238 } 239
Indexes created Tue Sep 30 11:09:46 GMT 2025