i82365_isa.c revision 1.34
1 /* $NetBSD: i82365_isa.c,v 1.34 2012/10/27 17:18:24 chs 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 1.34 2012/10/27 17:18:24 chs 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 <sys/bus.h> 44 #include <sys/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(device_t, cfdata_t, void *); 65 void pcic_isa_attach(device_t, device_t, void *); 66 67 CFATTACH_DECL_NEW(pcic_isa, sizeof(struct pcic_isa_softc), 68 pcic_isa_probe, pcic_isa_attach, NULL, NULL); 69 70 static const 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(device_t parent, cfdata_t match, void *aux) 92 { 93 struct isa_attach_args *ia = aux; 94 bus_space_tag_t iot = ia->ia_iot; 95 bus_space_handle_t ioh, memh; 96 int val, found, msize; 97 98 if (ia->ia_nio < 1) 99 return 0; 100 if (ia->ia_niomem < 1) 101 return 0; 102 103 if (ISA_DIRECT_CONFIG(ia)) 104 return 0; 105 106 /* Disallow wildcarded i/o address. */ 107 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 108 return 0; 109 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) 110 return 0; 111 112 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) 113 return 0; 114 115 if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ) 116 msize = PCIC_MEMSIZE; 117 else 118 msize = ia->ia_iomem[0].ir_size; 119 120 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 121 msize, 0, &memh)) { 122 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 123 return 0; 124 } 125 126 found = 0; 127 128 /* 129 * this could be done with a loop, but it would violate the 130 * abstraction 131 */ 132 133 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT); 134 135 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 136 137 if (pcic_ident_ok(val)) 138 found++; 139 140 141 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT); 142 143 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 144 145 if (pcic_ident_ok(val)) 146 found++; 147 148 149 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT); 150 151 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 152 153 if (pcic_ident_ok(val)) 154 found++; 155 156 157 bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT); 158 159 val = bus_space_read_1(iot, ioh, PCIC_REG_DATA); 160 161 if (pcic_ident_ok(val)) 162 found++; 163 164 165 bus_space_unmap(iot, ioh, PCIC_IOSIZE); 166 bus_space_unmap(ia->ia_memt, memh, msize); 167 168 if (!found) 169 return 0; 170 171 ia->ia_nio = 1; 172 ia->ia_io[0].ir_size = PCIC_IOSIZE; 173 174 ia->ia_niomem = 1; 175 ia->ia_iomem[0].ir_size = msize; 176 177 /* IRQ is special. */ 178 179 ia->ia_ndrq = 0; 180 181 return 1; 182 } 183 184 void 185 pcic_isa_attach(device_t parent, device_t self, void *aux) 186 { 187 struct pcic_isa_softc *isc = device_private(self); 188 struct pcic_softc *sc = &isc->sc_pcic; 189 struct isa_attach_args *ia = aux; 190 isa_chipset_tag_t ic = ia->ia_ic; 191 bus_space_tag_t iot = ia->ia_iot; 192 bus_space_tag_t memt = ia->ia_memt; 193 bus_space_handle_t ioh; 194 bus_space_handle_t memh; 195 196 sc->dev = self; 197 198 /* Map i/o space. */ 199 if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) { 200 printf(": can't map i/o space\n"); 201 return; 202 } 203 204 /* Map mem space. */ 205 if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, 206 ia->ia_iomem[0].ir_size, 0, &memh)) { 207 printf(": can't map mem space\n"); 208 return; 209 } 210 211 sc->membase = ia->ia_iomem[0].ir_addr; 212 sc->subregionmask = 213 (1 << (ia->ia_iomem[0].ir_size / PCIC_MEM_PAGESIZE)) - 1; 214 215 isc->sc_ic = ic; 216 sc->pct = &pcic_isa_functions; 217 218 sc->iot = iot; 219 sc->ioh = ioh; 220 sc->memt = memt; 221 sc->memh = memh; 222 if (ia->ia_nirq > 0) 223 sc->irq = ia->ia_irq[0].ir_irq; 224 else 225 sc->irq = ISA_UNKNOWN_IRQ; 226 227 printf("\n"); 228 229 pcic_attach(sc); 230 pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_io[0].ir_addr, 231 PCIC_IOSIZE); 232 pcic_attach_sockets(sc); 233 234 config_interrupts(self, pcic_isa_config_interrupts); 235 } 236
Indexes created Tue Sep 30 20:09:53 GMT 2025