tcic2_isa.c revision 1.2.2.1
1 /* $NetBSD: tcic2_isa.c,v 1.2.2.1 2000/11/20 11:41:21 bouyer Exp $ */ 2 3 #undef TCICISADEBUG 4 5 /* 6 * 7 * Copyright (c) 1998, 1999 Christoph Badura. All rights reserved. 8 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Marc Horowitz. 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/extent.h> 42 #include <sys/malloc.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <dev/isa/isareg.h> 48 #include <dev/isa/isavar.h> 49 50 #include <dev/pcmcia/pcmciareg.h> 51 #include <dev/pcmcia/pcmciavar.h> 52 #include <dev/pcmcia/pcmciachip.h> 53 54 #include <dev/ic/tcic2reg.h> 55 #include <dev/ic/tcic2var.h> 56 57 /***************************************************************************** 58 * Configurable parameters. 59 *****************************************************************************/ 60 61 #include "opt_tcic_isa_alloc_iobase.h" 62 #include "opt_tcic_isa_alloc_iosize.h" 63 #include "opt_tcic_isa_intr_alloc_mask.h" 64 65 /* 66 * Default I/O allocation range. If both are set to non-zero, these 67 * values will be used instead. Otherwise, the code attempts to probe 68 * the bus width. Systems with 10 address bits should use 0x300 and 0xff. 69 * Systems with 12 address bits (most) should use 0x400 and 0xbff. 70 */ 71 72 #ifndef TCIC_ISA_ALLOC_IOBASE 73 #define TCIC_ISA_ALLOC_IOBASE 0 74 #endif 75 76 #ifndef TCIC_ISA_ALLOC_IOSIZE 77 #define TCIC_ISA_ALLOC_IOSIZE 0 78 #endif 79 80 int tcic_isa_alloc_iobase = TCIC_ISA_ALLOC_IOBASE; 81 int tcic_isa_alloc_iosize = TCIC_ISA_ALLOC_IOSIZE; 82 83 /* 84 * Default IRQ allocation bitmask. This defines the range of allowable 85 * IRQs for PCMCIA slots. Useful if order of probing would screw up other 86 * devices, or if TCIC hardware/cards have trouble with certain interrupt 87 * lines. 88 * 89 * We disable IRQ 10 by default, since some common laptops (namely, the 90 * NEC Versa series) reserve IRQ 10 for the docking station SCSI interface. 91 * 92 * XXX Do we care about this? the Versa doesn't use a tcic. -chb 93 */ 94 95 #ifndef TCIC_ISA_INTR_ALLOC_MASK 96 #define TCIC_ISA_INTR_ALLOC_MASK 0xffff 97 #endif 98 99 int tcic_isa_intr_alloc_mask = TCIC_ISA_INTR_ALLOC_MASK; 100 101 /***************************************************************************** 102 * End of configurable parameters. 103 *****************************************************************************/ 104 105 #ifdef TCICISADEBUG 106 int tcic_isa_debug = 1; 107 #define DPRINTF(arg) if (tcic_isa_debug) printf arg; 108 #else 109 #define DPRINTF(arg) 110 #endif 111 112 int tcic_isa_probe __P((struct device *, struct cfdata *, void *)); 113 void tcic_isa_attach __P((struct device *, struct device *, void *)); 114 115 void *tcic_isa_chip_intr_establish __P((pcmcia_chipset_handle_t, 116 struct pcmcia_function *, int, int (*) (void *), void *)); 117 void tcic_isa_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *)); 118 119 struct cfattach tcic_isa_ca = { 120 sizeof(struct tcic_softc), tcic_isa_probe, tcic_isa_attach 121 }; 122 123 static struct pcmcia_chip_functions tcic_isa_functions = { 124 tcic_chip_mem_alloc, 125 tcic_chip_mem_free, 126 tcic_chip_mem_map, 127 tcic_chip_mem_unmap, 128 129 tcic_chip_io_alloc, 130 tcic_chip_io_free, 131 tcic_chip_io_map, 132 tcic_chip_io_unmap, 133 134 tcic_isa_chip_intr_establish, 135 tcic_isa_chip_intr_disestablish, 136 137 tcic_chip_socket_enable, 138 tcic_chip_socket_disable, 139 }; 140 141 int 142 tcic_isa_probe(parent, match, aux) 143 struct device *parent; 144 struct cfdata *match; 145 void *aux; 146 { 147 struct isa_attach_args *ia = aux; 148 bus_space_tag_t iot = ia->ia_iot; 149 bus_space_handle_t ioh, memh; 150 int val, found; 151 152 /* Disallow wildcarded i/o address. */ 153 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 154 return (0); 155 156 if (bus_space_map(iot, ia->ia_iobase, TCIC_IOSIZE, 0, &ioh)) 157 return (0); 158 159 if (ia->ia_msize == -1) 160 ia->ia_msize = TCIC_MEMSIZE; 161 162 if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) 163 return (0); 164 165 DPRINTF(("tcic probing 0x%03x\n", ia->ia_iobase)); 166 found = 0; 167 168 /* 169 * First, check for the reserved bits to be zero. 170 */ 171 if (tcic_check_reserved_bits(iot, ioh)) { 172 DPRINTF(("tcic: reserved bits checked OK\n")); 173 /* Second, check whether the we know how to handle the chip. */ 174 if ((val = tcic_chipid(iot, ioh))) { 175 DPRINTF(("tcic id: 0x%02x\n", val)); 176 if (tcic_chipid_known(val)) 177 found++; 178 } 179 } 180 else 181 DPRINTF(("tcic: reserved bits didn't check OK\n")); 182 183 bus_space_unmap(iot, ioh, TCIC_IOSIZE); 184 bus_space_unmap(ia->ia_memt, memh, ia->ia_msize); 185 186 if (!found) 187 return (0); 188 189 ia->ia_iosize = TCIC_IOSIZE; 190 191 return (1); 192 } 193 194 void 195 tcic_isa_attach(parent, self, aux) 196 struct device *parent, *self; 197 void *aux; 198 { 199 struct tcic_softc *sc = (void *) self; 200 struct isa_attach_args *ia = aux; 201 isa_chipset_tag_t ic = ia->ia_ic; 202 bus_space_tag_t iot = ia->ia_iot; 203 bus_space_tag_t memt = ia->ia_memt; 204 bus_space_handle_t ioh; 205 bus_space_handle_t memh; 206 207 /* Map i/o space. */ 208 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 209 printf(": can't map i/o space\n"); 210 return; 211 } 212 213 /* Map mem space. */ 214 if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) { 215 printf(": can't map mem space\n"); 216 return; 217 } 218 219 sc->membase = ia->ia_maddr; 220 sc->subregionmask = (1 << (ia->ia_msize / TCIC_MEM_PAGESIZE)) - 1; 221 sc->memsize2 = tcic_log2((u_int)ia->ia_msize); 222 223 sc->intr_est = ic; 224 sc->pct = (pcmcia_chipset_tag_t) & tcic_isa_functions; 225 226 sc->iot = iot; 227 sc->ioh = ioh; 228 sc->memt = memt; 229 sc->memh = memh; 230 231 /* 232 * determine chip type and initialise some chip type dependend 233 * parameters in softc. 234 */ 235 sc->chipid = tcic_chipid(iot, ioh); 236 sc->validirqs = tcic_validirqs(sc->chipid); 237 238 /* 239 * allocate an irq. interrupts are relatively 240 * scarce but for TCIC controllers very infrequent. 241 */ 242 243 if ((sc->irq = ia->ia_irq) == IRQUNK) { 244 if (isa_intr_alloc(ic, 245 sc->validirqs & (tcic_isa_intr_alloc_mask & 0xff00), 246 IST_EDGE, &sc->irq)) { 247 printf("\n%s: can't allocate interrupt\n", 248 sc->dev.dv_xname); 249 return; 250 } 251 printf(": using irq %d", sc->irq); 252 } 253 printf("\n"); 254 255 tcic_attach(sc); 256 257 258 /* 259 * XXX mycroft recommends I/O space range 0x400-0xfff. 260 */ 261 262 /* 263 * XXX some hardware doesn't seem to grok addresses in 0x400 range-- 264 * apparently missing a bit or more of address lines. (e.g. 265 * CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI 266 * TravelMate 5000--not clear which is at fault) 267 * 268 * Add a kludge to detect 10 bit wide buses and deal with them, 269 * and also a config file option to override the probe. 270 */ 271 272 #if 0 273 /* 274 * This is what we'd like to use, but... 275 */ 276 sc->iobase = 0x400; 277 sc->iosize = 0xbff; 278 #else 279 /* 280 * ...the above bus width probe doesn't always work. 281 * So, experimentation has shown the following range 282 * to not lose on systems that 0x300-0x3ff loses on 283 * (e.g. the NEC Versa 6030X). 284 */ 285 sc->iobase = 0x330; 286 sc->iosize = 0x0cf; 287 #endif 288 289 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx)\n", 290 sc->dev.dv_xname, (long) sc->iobase, 291 (long) sc->iobase + sc->iosize)); 292 293 if (tcic_isa_alloc_iobase && tcic_isa_alloc_iosize) { 294 sc->iobase = tcic_isa_alloc_iobase; 295 sc->iosize = tcic_isa_alloc_iosize; 296 297 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx " 298 "(config override)\n", sc->dev.dv_xname, (long) sc->iobase, 299 (long) sc->iobase + sc->iosize)); 300 } 301 sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY, 302 tcic_intr, sc); 303 if (sc->ih == NULL) { 304 printf("%s: can't establish interrupt\n", sc->dev.dv_xname); 305 return; 306 } 307 308 tcic_attach_sockets(sc); 309 } 310 311 void * 312 tcic_isa_chip_intr_establish(pch, pf, ipl, fct, arg) 313 pcmcia_chipset_handle_t pch; 314 struct pcmcia_function *pf; 315 int ipl; 316 int (*fct) __P((void *)); 317 void *arg; 318 { 319 struct tcic_handle *h = (struct tcic_handle *) pch; 320 int irq, ist; 321 void *ih; 322 323 DPRINTF(("%s: tcic_isa_chip_intr_establish\n", h->sc->dev.dv_xname)); 324 325 /* XXX should we convert level to pulse? -chb */ 326 if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL) 327 ist = IST_LEVEL; 328 else if (pf->cfe->flags & PCMCIA_CFE_IRQPULSE) 329 ist = IST_PULSE; 330 else 331 ist = IST_LEVEL; 332 333 if (isa_intr_alloc(h->sc->intr_est, 334 h->sc->validirqs & tcic_isa_intr_alloc_mask, ist, &irq)) 335 return (NULL); 336 if ((ih = isa_intr_establish(h->sc->intr_est, irq, ist, ipl, 337 fct, arg)) == NULL) 338 return (NULL); 339 340 DPRINTF(("%s: intr estrablished\n", h->sc->dev.dv_xname)); 341 342 h->ih_irq = irq; 343 344 printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq); 345 346 return (ih); 347 } 348 349 void 350 tcic_isa_chip_intr_disestablish(pch, ih) 351 pcmcia_chipset_handle_t pch; 352 void *ih; 353 { 354 struct tcic_handle *h = (struct tcic_handle *) pch; 355 int val, reg; 356 357 DPRINTF(("%s: tcic_isa_chip_intr_disestablish\n", h->sc->dev.dv_xname)); 358 359 h->ih_irq = 0; 360 361 reg = TCIC_IR_SCF1_N(h->sock); 362 val = tcic_read_ind_2(h, reg); 363 val &= ~TCIC_SCF1_IRQ_MASK; 364 tcic_write_ind_2(h, reg, val); 365 366 isa_intr_disestablish(h->sc->intr_est, ih); 367 } 368
Indexes created Mon Nov 03 11:09:54 GMT 2025