1 /* $NetBSD: esp_pcmcia.c,v 1.10 2001/11/13 07:26:32 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: esp_pcmcia.c,v 1.10 2001/11/13 07:26:32 lukem Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/buf.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <dev/scsipi/scsi_all.h> 51 #include <dev/scsipi/scsipi_all.h> 52 #include <dev/scsipi/scsiconf.h> 53 54 #include <dev/pcmcia/pcmciareg.h> 55 #include <dev/pcmcia/pcmciavar.h> 56 #include <dev/pcmcia/pcmciadevs.h> 57 58 #include <dev/ic/ncr53c9xreg.h> 59 #include <dev/ic/ncr53c9xvar.h> 60 61 struct esp_pcmcia_softc { 62 struct ncr53c9x_softc sc_ncr53c9x; /* glue to MI code */ 63 64 int sc_active; /* Pseudo-DMA state vars */ 65 int sc_tc; 66 int sc_datain; 67 size_t sc_dmasize; 68 size_t sc_dmatrans; 69 char **sc_dmaaddr; 70 size_t *sc_pdmalen; 71 72 /* PCMCIA-specific goo. */ 73 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 74 int sc_io_window; /* our i/o window */ 75 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 76 void *sc_ih; /* interrupt handler */ 77 #ifdef ESP_PCMCIA_POLL 78 struct callout sc_poll_ch; 79 #endif 80 int sc_flags; 81 #define ESP_PCMCIA_ATTACHED 1 /* attach completed */ 82 #define ESP_PCMCIA_ATTACHING 2 /* attach in progress */ 83 }; 84 85 int esp_pcmcia_match __P((struct device *, struct cfdata *, void *)); 86 void esp_pcmcia_attach __P((struct device *, struct device *, void *)); 87 void esp_pcmcia_init __P((struct esp_pcmcia_softc *)); 88 int esp_pcmcia_detach __P((struct device *, int)); 89 int esp_pcmcia_enable __P((void *, int)); 90 91 struct cfattach esp_pcmcia_ca = { 92 sizeof(struct esp_pcmcia_softc), esp_pcmcia_match, esp_pcmcia_attach, 93 esp_pcmcia_detach 94 }; 95 96 /* 97 * Functions and the switch for the MI code. 98 */ 99 #ifdef ESP_PCMCIA_POLL 100 void esp_pcmcia_poll __P((void *)); 101 #endif 102 u_char esp_pcmcia_read_reg __P((struct ncr53c9x_softc *, int)); 103 void esp_pcmcia_write_reg __P((struct ncr53c9x_softc *, int, u_char)); 104 int esp_pcmcia_dma_isintr __P((struct ncr53c9x_softc *)); 105 void esp_pcmcia_dma_reset __P((struct ncr53c9x_softc *)); 106 int esp_pcmcia_dma_intr __P((struct ncr53c9x_softc *)); 107 int esp_pcmcia_dma_setup __P((struct ncr53c9x_softc *, caddr_t *, 108 size_t *, int, size_t *)); 109 void esp_pcmcia_dma_go __P((struct ncr53c9x_softc *)); 110 void esp_pcmcia_dma_stop __P((struct ncr53c9x_softc *)); 111 int esp_pcmcia_dma_isactive __P((struct ncr53c9x_softc *)); 112 113 struct ncr53c9x_glue esp_pcmcia_glue = { 114 esp_pcmcia_read_reg, 115 esp_pcmcia_write_reg, 116 esp_pcmcia_dma_isintr, 117 esp_pcmcia_dma_reset, 118 esp_pcmcia_dma_intr, 119 esp_pcmcia_dma_setup, 120 esp_pcmcia_dma_go, 121 esp_pcmcia_dma_stop, 122 esp_pcmcia_dma_isactive, 123 NULL, /* gl_clear_latched_intr */ 124 }; 125 126 const struct pcmcia_product esp_pcmcia_products[] = { 127 { PCMCIA_STR_PANASONIC_KXLC002, PCMCIA_VENDOR_PANASONIC, 128 PCMCIA_PRODUCT_PANASONIC_KXLC002, 0 }, 129 130 { NULL } 131 }; 132 133 int 134 esp_pcmcia_match(parent, match, aux) 135 struct device *parent; 136 struct cfdata *match; 137 void *aux; 138 { 139 struct pcmcia_attach_args *pa = aux; 140 141 if (pcmcia_product_lookup(pa, esp_pcmcia_products, 142 sizeof esp_pcmcia_products[0], NULL) != NULL) 143 return (1); 144 return (0); 145 } 146 147 void 148 esp_pcmcia_attach(parent, self, aux) 149 struct device *parent, *self; 150 void *aux; 151 { 152 struct esp_pcmcia_softc *esc = (void *)self; 153 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 154 struct pcmcia_attach_args *pa = aux; 155 struct pcmcia_config_entry *cfe; 156 struct pcmcia_function *pf = pa->pf; 157 const struct pcmcia_product *pp; 158 159 esc->sc_pf = pf; 160 161 for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL; 162 cfe = SIMPLEQ_NEXT(cfe, cfe_list)) { 163 if (cfe->num_memspace != 0 || 164 cfe->num_iospace != 1) 165 continue; 166 167 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 168 cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0) 169 break; 170 } 171 172 if (cfe == 0) { 173 printf(": can't alloc i/o space\n"); 174 goto no_config_entry; 175 } 176 177 /* Enable the card. */ 178 pcmcia_function_init(pf, cfe); 179 if (pcmcia_function_enable(pf)) { 180 printf(": function enable failed\n"); 181 goto enable_failed; 182 } 183 184 /* Map in the I/O space */ 185 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size, 186 &esc->sc_pcioh, &esc->sc_io_window)) { 187 printf(": can't map i/o space\n"); 188 goto iomap_failed; 189 } 190 191 pp = pcmcia_product_lookup(pa, esp_pcmcia_products, 192 sizeof esp_pcmcia_products[0], NULL); 193 if (pp == NULL) { 194 printf("\n"); 195 panic("esp_pcmcia_attach: impossible"); 196 } 197 198 printf(": %s\n", pp->pp_name); 199 200 esp_pcmcia_init(esc); 201 202 /* 203 * Initialize nca board itself. 204 */ 205 esc->sc_flags |= ESP_PCMCIA_ATTACHING; 206 sc->sc_adapter.adapt_minphys = minphys; 207 sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request; 208 ncr53c9x_attach(sc); 209 esc->sc_flags &= ~ESP_PCMCIA_ATTACHING; 210 esc->sc_flags |= ESP_PCMCIA_ATTACHED; 211 return; 212 213 iomap_failed: 214 /* Disable the device. */ 215 pcmcia_function_disable(esc->sc_pf); 216 217 enable_failed: 218 /* Unmap our I/O space. */ 219 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 220 221 no_config_entry: 222 return; 223 } 224 225 void 226 esp_pcmcia_init(esc) 227 struct esp_pcmcia_softc *esc; 228 { 229 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 230 bus_space_tag_t iot = esc->sc_pcioh.iot; 231 bus_space_handle_t ioh = esc->sc_pcioh.ioh; 232 233 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 234 235 sc->sc_glue = &esp_pcmcia_glue; 236 237 #ifdef ESP_PCMCIA_POLL 238 callout_init(&esc->sc_poll_ch); 239 #endif 240 241 sc->sc_rev = NCR_VARIANT_ESP406; 242 sc->sc_id = 7; 243 sc->sc_freq = 40; 244 /* try -PARENB -SLOW */ 245 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 246 /* try +FE */ 247 sc->sc_cfg2 = NCRCFG2_SCSI2; 248 /* try -IDM -FSCSI -FCLK */ 249 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 250 NCRESPCFG3_FSCSI; 251 sc->sc_cfg4 = NCRCFG4_ACTNEG; 252 /* try +INTP */ 253 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 254 sc->sc_minsync = 0; 255 sc->sc_maxxfer = 64 * 1024; 256 257 bus_space_write_1(iot, ioh, NCR_CFG5, sc->sc_cfg5); 258 259 bus_space_write_1(iot, ioh, NCR_PIOI, 0); 260 bus_space_write_1(iot, ioh, NCR_PSTAT, 0); 261 bus_space_write_1(iot, ioh, 0x09, 0x24); 262 263 bus_space_write_1(iot, ioh, NCR_CFG4, sc->sc_cfg4); 264 } 265 266 int 267 esp_pcmcia_detach(self, flags) 268 struct device *self; 269 int flags; 270 { 271 struct esp_pcmcia_softc *esc = (void *)self; 272 int error; 273 274 if ((esc->sc_flags & ESP_PCMCIA_ATTACHED) == 0) { 275 /* Nothing to detach. */ 276 return (0); 277 } 278 279 error = ncr53c9x_detach(&esc->sc_ncr53c9x, flags); 280 if (error) 281 return (error); 282 283 /* Unmap our i/o window and i/o space. */ 284 pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window); 285 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 286 287 return (0); 288 } 289 290 int 291 esp_pcmcia_enable(arg, onoff) 292 void *arg; 293 int onoff; 294 { 295 struct esp_pcmcia_softc *esc = arg; 296 297 if (onoff) { 298 #ifdef ESP_PCMCIA_POLL 299 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 300 #else 301 /* Establish the interrupt handler. */ 302 esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO, 303 ncr53c9x_intr, &esc->sc_ncr53c9x); 304 if (esc->sc_ih == NULL) { 305 printf("%s: couldn't establish interrupt handler\n", 306 esc->sc_ncr53c9x.sc_dev.dv_xname); 307 return (EIO); 308 } 309 #endif 310 311 /* 312 * If attach is in progress, we know that card power is 313 * enabled and chip will be initialized later. 314 * Otherwise, enable and reset now. 315 */ 316 if ((esc->sc_flags & ESP_PCMCIA_ATTACHING) == 0) { 317 if (pcmcia_function_enable(esc->sc_pf)) { 318 printf("%s: couldn't enable PCMCIA function\n", 319 esc->sc_ncr53c9x.sc_dev.dv_xname); 320 pcmcia_intr_disestablish(esc->sc_pf, 321 esc->sc_ih); 322 return (EIO); 323 } 324 325 /* Initialize only chip. */ 326 ncr53c9x_init(&esc->sc_ncr53c9x, 0); 327 } 328 } else { 329 pcmcia_function_disable(esc->sc_pf); 330 #ifdef ESP_PCMCIA_POLL 331 callout_stop(&esc->sc_poll_ch); 332 #else 333 pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih); 334 #endif 335 } 336 337 return (0); 338 } 339 340 #ifdef ESP_PCMCIA_POLL 341 void 342 esp_pcmcia_poll(arg) 343 void *arg; 344 { 345 struct esp_pcmcia_softc *esc = arg; 346 347 (void) ncr53c9x_intr(&esc->sc_ncr53c9x); 348 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 349 } 350 #endif 351 352 /* 353 * Glue functions. 354 */ 355 u_char 356 esp_pcmcia_read_reg(sc, reg) 357 struct ncr53c9x_softc *sc; 358 int reg; 359 { 360 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 361 u_char v; 362 363 v = bus_space_read_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg); 364 return v; 365 } 366 367 void 368 esp_pcmcia_write_reg(sc, reg, val) 369 struct ncr53c9x_softc *sc; 370 int reg; 371 u_char val; 372 { 373 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 374 u_char v = val; 375 376 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 377 v = NCRCMD_TRANS; 378 bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg, v); 379 } 380 381 int 382 esp_pcmcia_dma_isintr(sc) 383 struct ncr53c9x_softc *sc; 384 { 385 386 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 387 } 388 389 void 390 esp_pcmcia_dma_reset(sc) 391 struct ncr53c9x_softc *sc; 392 { 393 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 394 395 esc->sc_active = 0; 396 esc->sc_tc = 0; 397 } 398 399 int 400 esp_pcmcia_dma_intr(sc) 401 struct ncr53c9x_softc *sc; 402 { 403 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 404 u_char *p; 405 u_int espphase, espstat, espintr; 406 int cnt; 407 408 if (esc->sc_active == 0) { 409 printf("%s: dma_intr--inactive DMA\n", sc->sc_dev.dv_xname); 410 return -1; 411 } 412 413 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 414 esc->sc_active = 0; 415 return 0; 416 } 417 418 cnt = *esc->sc_pdmalen; 419 if (*esc->sc_pdmalen == 0) { 420 printf("%s: data interrupt, but no count left\n", 421 sc->sc_dev.dv_xname); 422 } 423 424 p = *esc->sc_dmaaddr; 425 espphase = sc->sc_phase; 426 espstat = (u_int) sc->sc_espstat; 427 espintr = (u_int) sc->sc_espintr; 428 do { 429 if (esc->sc_datain) { 430 *p++ = NCR_READ_REG(sc, NCR_FIFO); 431 cnt--; 432 if (espphase == DATA_IN_PHASE) 433 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 434 else 435 esc->sc_active = 0; 436 } else { 437 if (espphase == DATA_OUT_PHASE || 438 espphase == MESSAGE_OUT_PHASE) { 439 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 440 cnt--; 441 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 442 } else 443 esc->sc_active = 0; 444 } 445 446 if (esc->sc_active) { 447 while (!(NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT)); 448 espstat = NCR_READ_REG(sc, NCR_STAT); 449 espintr = NCR_READ_REG(sc, NCR_INTR); 450 espphase = (espintr & NCRINTR_DIS) 451 ? /* Disconnected */ BUSFREE_PHASE 452 : espstat & PHASE_MASK; 453 } 454 } while (esc->sc_active && espintr); 455 sc->sc_phase = espphase; 456 sc->sc_espstat = (u_char) espstat; 457 sc->sc_espintr = (u_char) espintr; 458 *esc->sc_dmaaddr = p; 459 *esc->sc_pdmalen = cnt; 460 461 if (*esc->sc_pdmalen == 0) 462 esc->sc_tc = NCRSTAT_TC; 463 sc->sc_espstat |= esc->sc_tc; 464 return 0; 465 } 466 467 int 468 esp_pcmcia_dma_setup(sc, addr, len, datain, dmasize) 469 struct ncr53c9x_softc *sc; 470 caddr_t *addr; 471 size_t *len; 472 int datain; 473 size_t *dmasize; 474 { 475 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 476 477 esc->sc_dmaaddr = addr; 478 esc->sc_pdmalen = len; 479 esc->sc_datain = datain; 480 esc->sc_dmasize = *dmasize; 481 esc->sc_tc = 0; 482 483 return 0; 484 } 485 486 void 487 esp_pcmcia_dma_go(sc) 488 struct ncr53c9x_softc *sc; 489 { 490 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 491 492 esc->sc_active = 1; 493 } 494 495 void 496 esp_pcmcia_dma_stop(sc) 497 struct ncr53c9x_softc *sc; 498 { 499 } 500 501 int 502 esp_pcmcia_dma_isactive(sc) 503 struct ncr53c9x_softc *sc; 504 { 505 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 506 507 return (esc->sc_active); 508 } 509