1 /* $OpenBSD: tcic2_isa.c,v 1.1 2000/05/15 04:17:29 jason Exp $ */ 2 /* $NetBSD: tcic2_isa.c,v 1.2 1999/04/08 16:14:29 bad Exp $ */ 3 4 #undef TCICISADEBUG 5 6 /* 7 * 8 * Copyright (c) 1998, 1999 Christoph Badura. All rights reserved. 9 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by Marc Horowitz. 22 * 4. The name of the author may not be used to endorse or promote products 23 * derived from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 38 #include <sys/types.h> 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 <vm/vm.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <dev/isa/isareg.h> 51 #include <dev/isa/isavar.h> 52 53 #include <dev/pcmcia/pcmciareg.h> 54 #include <dev/pcmcia/pcmciavar.h> 55 #include <dev/pcmcia/pcmciachip.h> 56 57 #include <dev/ic/tcic2reg.h> 58 #include <dev/ic/tcic2var.h> 59 60 /***************************************************************************** 61 * Configurable parameters. 62 *****************************************************************************/ 63 64 /* 65 * Default I/O allocation range. If both are set to non-zero, these 66 * values will be used instead. Otherwise, the code attempts to probe 67 * the bus width. Systems with 10 address bits should use 0x300 and 0xff. 68 * Systems with 12 address bits (most) should use 0x400 and 0xbff. 69 */ 70 71 #ifndef TCIC_ISA_ALLOC_IOBASE 72 #define TCIC_ISA_ALLOC_IOBASE 0 73 #endif 74 75 #ifndef TCIC_ISA_ALLOC_IOSIZE 76 #define TCIC_ISA_ALLOC_IOSIZE 0 77 #endif 78 79 int tcic_isa_alloc_iobase = TCIC_ISA_ALLOC_IOBASE; 80 int tcic_isa_alloc_iosize = TCIC_ISA_ALLOC_IOSIZE; 81 82 /* 83 * Default IRQ allocation bitmask. This defines the range of allowable 84 * IRQs for PCMCIA slots. Useful if order of probing would screw up other 85 * devices, or if TCIC hardware/cards have trouble with certain interrupt 86 * lines. 87 * 88 * We disable IRQ 10 by default, since some common laptops (namely, the 89 * NEC Versa series) reserve IRQ 10 for the docking station SCSI interface. 90 * 91 * XXX Do we care about this? the Versa doesn't use a tcic. -chb 92 */ 93 94 #ifndef TCIC_ISA_INTR_ALLOC_MASK 95 #define TCIC_ISA_INTR_ALLOC_MASK 0xffff 96 #endif 97 98 int tcic_isa_intr_alloc_mask = TCIC_ISA_INTR_ALLOC_MASK; 99 100 /***************************************************************************** 101 * End of configurable parameters. 102 *****************************************************************************/ 103 104 #ifdef TCICISADEBUG 105 int tcic_isa_debug = 1; 106 #define DPRINTF(arg) if (tcic_isa_debug) printf arg; 107 #else 108 #define DPRINTF(arg) 109 #endif 110 111 int tcic_isa_probe __P((struct device *, void *, void *)); 112 void tcic_isa_attach __P((struct device *, struct device *, void *)); 113 114 void *tcic_isa_chip_intr_establish __P((pcmcia_chipset_handle_t, 115 struct pcmcia_function *, int, int (*) (void *), void *)); 116 void tcic_isa_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *)); 117 118 struct cfattach tcic_isa_ca = { 119 sizeof(struct tcic_softc), tcic_isa_probe, tcic_isa_attach 120 }; 121 122 static struct pcmcia_chip_functions tcic_isa_functions = { 123 tcic_chip_mem_alloc, 124 tcic_chip_mem_free, 125 tcic_chip_mem_map, 126 tcic_chip_mem_unmap, 127 128 tcic_chip_io_alloc, 129 tcic_chip_io_free, 130 tcic_chip_io_map, 131 tcic_chip_io_unmap, 132 133 tcic_isa_chip_intr_establish, 134 tcic_isa_chip_intr_disestablish, 135 136 tcic_chip_socket_enable, 137 tcic_chip_socket_disable, 138 }; 139 140 int 141 tcic_isa_probe(parent, match, aux) 142 struct device *parent; 143 void *match; 144 void *aux; 145 { 146 struct isa_attach_args *ia = aux; 147 bus_space_tag_t iot = ia->ia_iot; 148 bus_space_handle_t ioh, memh; 149 int val, found; 150 151 /* Disallow wildcarded i/o address. */ 152 if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */) 153 return (0); 154 155 if (bus_space_map(iot, ia->ia_iobase, TCIC_IOSIZE, 0, &ioh)) 156 return (0); 157 158 if (ia->ia_msize == 0) 159 ia->ia_msize = TCIC_MEMSIZE; 160 161 if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) 162 return (0); 163 164 DPRINTF(("tcic probing 0x%03x\n", ia->ia_iobase)); 165 found = 0; 166 167 /* 168 * First, check for the reserved bits to be zero. 169 */ 170 if (tcic_check_reserved_bits(iot, ioh)) { 171 DPRINTF(("tcic: reserved bits checked OK\n")); 172 /* Second, check whether the we know how to handle the chip. */ 173 if ((val = tcic_chipid(iot, ioh))) { 174 DPRINTF(("tcic id: 0x%02x\n", val)); 175 if (tcic_chipid_known(val)) 176 found++; 177 } 178 } 179 else 180 DPRINTF(("tcic: reserved bits didn't check OK\n")); 181 182 bus_space_unmap(iot, ioh, TCIC_IOSIZE); 183 bus_space_unmap(ia->ia_memt, memh, ia->ia_msize); 184 185 if (!found) 186 return (0); 187 188 ia->ia_iosize = TCIC_IOSIZE; 189 190 return (1); 191 } 192 193 void 194 tcic_isa_attach(parent, self, aux) 195 struct device *parent, *self; 196 void *aux; 197 { 198 struct tcic_softc *sc = (void *) self; 199 struct isa_attach_args *ia = aux; 200 isa_chipset_tag_t ic = ia->ia_ic; 201 bus_space_tag_t iot = ia->ia_iot; 202 bus_space_tag_t memt = ia->ia_memt; 203 bus_space_handle_t ioh; 204 bus_space_handle_t memh; 205 206 /* Map i/o space. */ 207 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) { 208 printf(": can't map i/o space\n"); 209 return; 210 } 211 212 /* Map mem space. */ 213 if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) { 214 printf(": can't map mem space\n"); 215 return; 216 } 217 218 sc->membase = ia->ia_maddr; 219 sc->subregionmask = (1 << (ia->ia_msize / TCIC_MEM_PAGESIZE)) - 1; 220 sc->memsize2 = tcic_log2((u_int)ia->ia_msize); 221 222 sc->intr_est = ic; 223 sc->pct = (pcmcia_chipset_tag_t) & tcic_isa_functions; 224 225 sc->iot = iot; 226 sc->ioh = ioh; 227 sc->memt = memt; 228 sc->memh = memh; 229 230 /* 231 * determine chip type and initialise some chip type dependend 232 * parameters in softc. 233 */ 234 sc->chipid = tcic_chipid(iot, ioh); 235 sc->validirqs = tcic_validirqs(sc->chipid); 236 237 /* 238 * allocate an irq. interrupts are relatively 239 * scarce but for TCIC controllers very infrequent. 240 */ 241 242 if ((sc->irq = ia->ia_irq) == IRQUNK) { 243 if (isa_intr_alloc(ic, 244 sc->validirqs & (tcic_isa_intr_alloc_mask & 0xff00), 245 IST_EDGE, &sc->irq)) { 246 printf("\n%s: can't allocate interrupt\n", 247 sc->dev.dv_xname); 248 return; 249 } 250 printf(": using irq %d", sc->irq); 251 } 252 printf("\n"); 253 254 tcic_attach(sc); 255 256 257 /* 258 * XXX mycroft recommends I/O space range 0x400-0xfff. 259 */ 260 261 /* 262 * XXX some hardware doesn't seem to grok addresses in 0x400 range-- 263 * apparently missing a bit or more of address lines. (e.g. 264 * CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI 265 * TravelMate 5000--not clear which is at fault) 266 * 267 * Add a kludge to detect 10 bit wide buses and deal with them, 268 * and also a config file option to override the probe. 269 */ 270 271 #if 0 272 /* 273 * This is what we'd like to use, but... 274 */ 275 sc->iobase = 0x400; 276 sc->iosize = 0xbff; 277 #else 278 /* 279 * ...the above bus width probe doesn't always work. 280 * So, experimentation has shown the following range 281 * to not lose on systems that 0x300-0x3ff loses on 282 * (e.g. the NEC Versa 6030X). 283 */ 284 sc->iobase = 0x330; 285 sc->iosize = 0x0cf; 286 #endif 287 288 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx)\n", 289 sc->dev.dv_xname, (long) sc->iobase, 290 (long) sc->iobase + sc->iosize)); 291 292 if (tcic_isa_alloc_iobase && tcic_isa_alloc_iosize) { 293 sc->iobase = tcic_isa_alloc_iobase; 294 sc->iosize = tcic_isa_alloc_iosize; 295 296 DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx " 297 "(config override)\n", sc->dev.dv_xname, (long) sc->iobase, 298 (long) sc->iobase + sc->iosize)); 299 } 300 sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY, 301 tcic_intr, sc, sc->dev.dv_xname); 302 if (sc->ih == NULL) { 303 printf("%s: can't establish interrupt\n", sc->dev.dv_xname); 304 return; 305 } 306 307 tcic_attach_sockets(sc); 308 } 309 310 void * 311 tcic_isa_chip_intr_establish(pch, pf, ipl, fct, arg) 312 pcmcia_chipset_handle_t pch; 313 struct pcmcia_function *pf; 314 int ipl; 315 int (*fct) __P((void *)); 316 void *arg; 317 { 318 struct tcic_handle *h = (struct tcic_handle *) pch; 319 int irq, ist, val, reg; 320 void *ih; 321 int irqmap[] = { 322 0, 0, 0, TCIC_SCF1_IRQ3, TCIC_SCF1_IRQ4, TCIC_SCF1_IRQ5, 323 TCIC_SCF1_IRQ6, TCIC_SCF1_IRQ7, 0, TCIC_SCF1_IRQ9, 324 TCIC_SCF1_IRQ10, TCIC_SCF1_IRQ11, TCIC_SCF1_IRQ12, 0, 325 TCIC_SCF1_IRQ14, TCIC_SCF1_IRQ15 326 }; 327 328 DPRINTF(("%s: tcic_isa_chip_intr_establish\n", h->sc->dev.dv_xname)); 329 330 /* XXX should we convert level to pulse? -chb */ 331 if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL) 332 ist = IST_LEVEL; 333 else if (pf->cfe->flags & PCMCIA_CFE_IRQPULSE) 334 ist = IST_PULSE; 335 else 336 ist = IST_LEVEL; 337 338 if (isa_intr_alloc(h->sc->intr_est, 339 h->sc->validirqs & tcic_isa_intr_alloc_mask, ist, &irq)) 340 return (NULL); 341 if ((ih = isa_intr_establish(h->sc->intr_est, irq, ist, ipl, 342 fct, arg, h->pcmcia->dv_xname)) == NULL) 343 return (NULL); 344 345 DPRINTF(("%s: intr established\n", h->sc->dev.dv_xname)); 346 347 h->ih_irq = irq; 348 349 reg = TCIC_IR_SCF1_N(h->sock); 350 val = (tcic_read_ind_2(h, reg) & (~TCIC_SCF1_IRQ_MASK)) | irqmap[irq]; 351 tcic_write_ind_2(h, reg, val); 352 353 printf(" irq %d", irq); 354 return (ih); 355 } 356 357 void 358 tcic_isa_chip_intr_disestablish(pch, ih) 359 pcmcia_chipset_handle_t pch; 360 void *ih; 361 { 362 struct tcic_handle *h = (struct tcic_handle *) pch; 363 int val, reg; 364 365 DPRINTF(("%s: tcic_isa_chip_intr_disestablish\n", h->sc->dev.dv_xname)); 366 367 h->ih_irq = 0; 368 369 reg = TCIC_IR_SCF1_N(h->sock); 370 val = tcic_read_ind_2(h, reg); 371 val &= ~TCIC_SCF1_IRQ_MASK; 372 tcic_write_ind_2(h, reg, val); 373 374 isa_intr_disestablish(h->sc->intr_est, ih); 375 } 376