tcic2_isa.c revision 1.15
1 /* $NetBSD: tcic2_isa.c,v 1.15 2006/09/03 06:46:22 christos Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1998, 1999 Christoph Badura. All rights reserved. 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/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: tcic2_isa.c,v 1.15 2006/09/03 06:46:22 christos Exp $"); 36 37 #undef TCICISADEBUG 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/extent.h> 43 #include <sys/malloc.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 48 #include <dev/isa/isareg.h> 49 #include <dev/isa/isavar.h> 50 51 #include <dev/pcmcia/pcmciareg.h> 52 #include <dev/pcmcia/pcmciavar.h> 53 #include <dev/pcmcia/pcmciachip.h> 54 55 #include <dev/ic/tcic2reg.h> 56 #include <dev/ic/tcic2var.h> 57 58 /***************************************************************************** 59 * Configurable parameters. 60 *****************************************************************************/ 61 62 #include "opt_tcic_isa_alloc_iobase.h" 63 #include "opt_tcic_isa_alloc_iosize.h" 64 #include "opt_tcic_isa_intr_alloc_mask.h" 65 66 /* 67 * Default I/O allocation range. If both are set to non-zero, these 68 * values will be used instead. Otherwise, the code attempts to probe 69 * the bus width. Systems with 10 address bits should use 0x300 and 0xff. 70 * Systems with 12 address bits (most) should use 0x400 and 0xbff. 71 */ 72 73 #ifndef TCIC_ISA_ALLOC_IOBASE 74 #define TCIC_ISA_ALLOC_IOBASE 0 75 #endif 76 77 #ifndef TCIC_ISA_ALLOC_IOSIZE 78 #define TCIC_ISA_ALLOC_IOSIZE 0 79 #endif 80 81 int tcic_isa_alloc_iobase = TCIC_ISA_ALLOC_IOBASE; 82 int tcic_isa_alloc_iosize = TCIC_ISA_ALLOC_IOSIZE; 83 84 /* 85 * Default IRQ allocation bitmask. This defines the range of allowable 86 * IRQs for PCMCIA slots. Useful if order of probing would screw up other 87 * devices, or if TCIC hardware/cards have trouble with certain interrupt 88 * lines. 89 * 90 * We disable IRQ 10 by default, since some common laptops (namely, the 91 * NEC Versa series) reserve IRQ 10 for the docking station SCSI interface. 92 * 93 * XXX Do we care about this? the Versa doesn't use a tcic. -chb 94 */ 95 96 #ifndef TCIC_ISA_INTR_ALLOC_MASK 97 #define TCIC_ISA_INTR_ALLOC_MASK 0xffff 98 #endif 99 100 int tcic_isa_intr_alloc_mask = TCIC_ISA_INTR_ALLOC_MASK; 101 102 /***************************************************************************** 103 * End of configurable parameters. 104 *****************************************************************************/ 105 106 #ifdef TCICISADEBUG 107 int tcic_isa_debug = 1; 108 #define DPRINTF(arg) if (tcic_isa_debug) printf arg; 109 #else 110 #define DPRINTF(arg) 111 #endif 112 113 int tcic_isa_probe(struct device *, struct cfdata *, void *); 114 void tcic_isa_attach(struct device *, struct device *, void *); 115 116 void *tcic_isa_chip_intr_establish(pcmcia_chipset_handle_t, 117 struct pcmcia_function *, int, int (*) (void *), void *); 118 void tcic_isa_chip_intr_disestablish(pcmcia_chipset_handle_t, void *); 119 120 CFATTACH_DECL(tcic_isa, sizeof(struct tcic_softc), 121 tcic_isa_probe, tcic_isa_attach, NULL, NULL); 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 tcic_chip_socket_settype, 140 141 NULL, /* card_detect */ 142 }; 143 144 int 145 tcic_isa_probe(parent, match, aux) 146 struct device *parent; 147 struct cfdata *match; 148 void *aux; 149 { 150 struct isa_attach_args *ia = aux; 151 bus_space_tag_t iot = ia->ia_iot; 152 bus_space_handle_t ioh, memh; 153 int val, found, msize; 154 155 if (ia->ia_nio < 1) 156 return (0); 157 if (ia->ia_niomem < 1) 158 return (0); 159 160 if (ISA_DIRECT_CONFIG(ia)) 161 return (0); 162 163 /* Disallow wildcarded i/o address. */ 164 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 165 return (0); 166 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) 167 return (0); 168 169 if (bus_space_map(iot, ia->ia_io[0].ir_addr, TCIC_IOSIZE, 0, &ioh)) 170 return (0); 171 172 if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ) 173 msize = TCIC_MEMSIZE; 174 else 175 msize = ia->ia_iomem[0].ir_size; 176 177 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 178 msize, 0, &memh)) { 179 bus_space_unmap(iot, ioh, TCIC_IOSIZE); 180 return (0); 181 } 182 183 DPRINTF(("tcic probing 0x%03x\n", ia->ia_iobase)); 184 found = 0; 185 186 /* 187 * First, check for the reserved bits to be zero. 188 */ 189 if (tcic_check_reserved_bits(iot, ioh)) { 190 DPRINTF(("tcic: reserved bits checked OK\n")); 191 /* Second, check whether the we know how to handle the chip. */ 192 if ((val = tcic_chipid(iot, ioh))) { 193 DPRINTF(("tcic id: 0x%02x\n", val)); 194 if (tcic_chipid_known(val)) 195 found++; 196 } 197 } 198 else { 199 DPRINTF(("tcic: reserved bits didn't check OK\n")); 200 } 201 202 bus_space_unmap(iot, ioh, TCIC_IOSIZE); 203 bus_space_unmap(ia->ia_memt, memh, msize); 204 205 if (!found) 206 return (0); 207 208 ia->ia_nio = 1; 209 ia->ia_io[0].ir_size = TCIC_IOSIZE; 210 211 ia->ia_niomem = 1; 212 ia->ia_iomem[0].ir_size = msize; 213 214 /* IRQ is special. */ 215 216 ia->ia_ndrq = 0; 217 218 return (1); 219 } 220 221 void 222 tcic_isa_attach(parent, self, aux) 223 struct device *parent, *self; 224 void *aux; 225 { 226 struct tcic_softc *sc = (void *) self; 227 struct isa_attach_args *ia = aux; 228 isa_chipset_tag_t ic = ia->ia_ic; 229 bus_space_tag_t iot = ia->ia_iot; 230 bus_space_tag_t memt = ia->ia_memt; 231 bus_space_handle_t ioh; 232 bus_space_handle_t memh; 233 234 /* Map i/o space. */ 235 if (bus_space_map(iot, ia->ia_io[0].ir_addr, TCIC_IOSIZE, 0, &ioh)) { 236 printf(": can't map i/o space\n"); 237 return; 238 } 239 240 /* Map mem space. */ 241 if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, 242 ia->ia_iomem[0].ir_size, 0, &memh)) { 243 printf(": can't map mem space\n"); 244 return; 245 } 246 247 sc->membase = ia->ia_iomem[0].ir_addr; 248 sc->subregionmask = 249 (1 << (ia->ia_iomem[0].ir_size / TCIC_MEM_PAGESIZE)) - 1; 250 sc->memsize2 = tcic_log2((u_int)ia->ia_iomem[0].ir_size); 251 252 sc->intr_est = ic; 253 sc->pct = (pcmcia_chipset_tag_t) & tcic_isa_functions; 254 255 sc->iot = iot; 256 sc->ioh = ioh; 257 sc->memt = memt; 258 sc->memh = memh; 259 260 /* 261 * determine chip type and initialise some chip type dependend 262 * parameters in softc. 263 */ 264 sc->chipid = tcic_chipid(iot, ioh); 265 sc->validirqs = tcic_validirqs(sc->chipid); 266 267 /* 268 * allocate an irq. interrupts are relatively 269 * scarce but for TCIC controllers very infrequent. 270 */ 271 272 if (ia->ia_nirq < 1) 273 sc->irq = ISA_UNKNOWN_IRQ; 274 else 275 sc->irq = ia->ia_irq[0].ir_irq; 276 if (sc->irq == ISA_UNKNOWN_IRQ) { 277 if (isa_intr_alloc(ic, 278 sc->validirqs & (tcic_isa_intr_alloc_mask & 0xff00), 279 IST_EDGE, &sc->irq)) { 280 printf("\n%s: can't allocate interrupt\n", 281 sc->dev.dv_xname); 282 return; 283 } 284 printf(": using irq %d", sc->irq); 285 } 286 printf("\n"); 287 288 tcic_attach(sc); 289 290 291 /* 292 * XXX mycroft recommends I/O space range 0x400-0xfff. 293 */ 294 295 /* 296 * XXX some hardware doesn't seem to grok addresses in 0x400 range-- 297 * apparently missing a bit or more of address lines. (e.g. 298 * CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI 299 * TravelMate 5000--not clear which is at fault) 300 * 301 * Add a kludge to detect 10 bit wide buses and deal with them, 302 * and also a config file option to override the probe. 303 */ 304 305 #if 0 306 /* 307 * This is what we'd like to use, but... 308 */ 309 sc->iobase = 0x400; 310 sc->iosize = 0xbff; 311 #else 312 /* 313 * ...the above bus width probe doesn't always work. 314 * So, experimentation has shown the following range 315 * to not lose on systems that 0x300-0x3ff loses on 316 * (e.g. the NEC Versa 6030X). 317 */ 318 sc->iobase = 0x330; 319 sc->iosize = 0x0cf; 320 #endif 321 322 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx)\n", 323 sc->dev.dv_xname, (long) sc->iobase, 324 (long) sc->iobase + sc->iosize)); 325 326 if (tcic_isa_alloc_iobase && tcic_isa_alloc_iosize) { 327 sc->iobase = tcic_isa_alloc_iobase; 328 sc->iosize = tcic_isa_alloc_iosize; 329 330 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx " 331 "(config override)\n", sc->dev.dv_xname, (long) sc->iobase, 332 (long) sc->iobase + sc->iosize)); 333 } 334 sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY, 335 tcic_intr, sc); 336 if (sc->ih == NULL) { 337 printf("%s: can't establish interrupt\n", sc->dev.dv_xname); 338 return; 339 } 340 341 tcic_attach_sockets(sc); 342 } 343 344 void * 345 tcic_isa_chip_intr_establish(pch, pf, ipl, fct, arg) 346 pcmcia_chipset_handle_t pch; 347 struct pcmcia_function *pf; 348 int ipl; 349 int (*fct)(void *); 350 void *arg; 351 { 352 struct tcic_handle *h = (struct tcic_handle *) pch; 353 int irq, ist; 354 void *ih; 355 356 DPRINTF(("%s: tcic_isa_chip_intr_establish\n", h->sc->dev.dv_xname)); 357 358 /* XXX should we convert level to pulse? -chb */ 359 if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL) 360 ist = IST_LEVEL; 361 else if (pf->cfe->flags & PCMCIA_CFE_IRQPULSE) 362 ist = IST_PULSE; 363 else 364 ist = IST_LEVEL; 365 366 if (isa_intr_alloc(h->sc->intr_est, 367 h->sc->validirqs & tcic_isa_intr_alloc_mask, ist, &irq)) 368 return (NULL); 369 if ((ih = isa_intr_establish(h->sc->intr_est, irq, ist, ipl, 370 fct, arg)) == NULL) 371 return (NULL); 372 373 DPRINTF(("%s: intr estrablished\n", h->sc->dev.dv_xname)); 374 375 h->ih_irq = irq; 376 377 printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq); 378 379 return (ih); 380 } 381 382 void 383 tcic_isa_chip_intr_disestablish(pch, ih) 384 pcmcia_chipset_handle_t pch; 385 void *ih; 386 { 387 struct tcic_handle *h = (struct tcic_handle *) pch; 388 int val, reg; 389 390 DPRINTF(("%s: tcic_isa_chip_intr_disestablish\n", h->sc->dev.dv_xname)); 391 392 h->ih_irq = 0; 393 394 reg = TCIC_IR_SCF1_N(h->sock); 395 val = tcic_read_ind_2(h, reg); 396 val &= ~TCIC_SCF1_IRQ_MASK; 397 tcic_write_ind_2(h, reg, val); 398 399 isa_intr_disestablish(h->sc->intr_est, ih); 400 } 401
Indexes created Mon Nov 03 11:09:54 GMT 2025