esp_pcmcia.c revision 1.7
1/* $NetBSD: esp_pcmcia.c,v 1.7 2000/06/05 15:19:44 tsutsui 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/param.h> 40#include <sys/systm.h> 41#include <sys/device.h> 42#include <sys/buf.h> 43 44#include <machine/bus.h> 45#include <machine/intr.h> 46 47#include <dev/scsipi/scsi_all.h> 48#include <dev/scsipi/scsipi_all.h> 49#include <dev/scsipi/scsiconf.h> 50 51#include <dev/pcmcia/pcmciareg.h> 52#include <dev/pcmcia/pcmciavar.h> 53#include <dev/pcmcia/pcmciadevs.h> 54 55#include <dev/ic/ncr53c9xreg.h> 56#include <dev/ic/ncr53c9xvar.h> 57 58struct esp_pcmcia_softc { 59 struct ncr53c9x_softc sc_ncr53c9x; /* glue to MI code */ 60 61 int sc_active; /* Pseudo-DMA state vars */ 62 int sc_tc; 63 int sc_datain; 64 size_t sc_dmasize; 65 size_t sc_dmatrans; 66 char **sc_dmaaddr; 67 size_t *sc_pdmalen; 68 69 /* PCMCIA-specific goo. */ 70 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 71 int sc_io_window; /* our i/o window */ 72 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 73 void *sc_ih; /* interrupt handler */ 74#ifdef ESP_PCMCIA_POLL 75 struct callout sc_poll_ch; 76#endif 77 int sc_flags; 78#define ESP_PCMCIA_ATTACHED 1 /* attach completed */ 79#define ESP_PCMCIA_ATTACHING 2 /* attach in progress */ 80}; 81 82int esp_pcmcia_match __P((struct device *, struct cfdata *, void *)); 83void esp_pcmcia_attach __P((struct device *, struct device *, void *)); 84void esp_pcmcia_init __P((struct esp_pcmcia_softc *)); 85int esp_pcmcia_detach __P((struct device *, int)); 86int esp_pcmcia_enable __P((void *, int)); 87 88static struct scsipi_adapter esp_pci_adapter = { 89 0, /* adapter refcnt */ 90 ncr53c9x_scsi_cmd, /* cmd */ 91 minphys, /* minphys */ 92 NULL, /* ioctl */ 93 esp_pcmcia_enable, /* enable */ 94 NULL, /* getgeom */ 95}; 96 97struct cfattach esp_pcmcia_ca = { 98 sizeof(struct esp_pcmcia_softc), esp_pcmcia_match, esp_pcmcia_attach, 99 esp_pcmcia_detach 100}; 101 102/* 103 * Functions and the switch for the MI code. 104 */ 105#ifdef ESP_PCMCIA_POLL 106void esp_pcmcia_poll __P((void *)); 107#endif 108u_char esp_pcmcia_read_reg __P((struct ncr53c9x_softc *, int)); 109void esp_pcmcia_write_reg __P((struct ncr53c9x_softc *, int, u_char)); 110int esp_pcmcia_dma_isintr __P((struct ncr53c9x_softc *)); 111void esp_pcmcia_dma_reset __P((struct ncr53c9x_softc *)); 112int esp_pcmcia_dma_intr __P((struct ncr53c9x_softc *)); 113int esp_pcmcia_dma_setup __P((struct ncr53c9x_softc *, caddr_t *, 114 size_t *, int, size_t *)); 115void esp_pcmcia_dma_go __P((struct ncr53c9x_softc *)); 116void esp_pcmcia_dma_stop __P((struct ncr53c9x_softc *)); 117int esp_pcmcia_dma_isactive __P((struct ncr53c9x_softc *)); 118 119struct ncr53c9x_glue esp_pcmcia_glue = { 120 esp_pcmcia_read_reg, 121 esp_pcmcia_write_reg, 122 esp_pcmcia_dma_isintr, 123 esp_pcmcia_dma_reset, 124 esp_pcmcia_dma_intr, 125 esp_pcmcia_dma_setup, 126 esp_pcmcia_dma_go, 127 esp_pcmcia_dma_stop, 128 esp_pcmcia_dma_isactive, 129 NULL, /* gl_clear_latched_intr */ 130}; 131 132const struct pcmcia_product esp_pcmcia_products[] = { 133 { PCMCIA_STR_PANASONIC_KXLC002, PCMCIA_VENDOR_PANASONIC, 134 PCMCIA_PRODUCT_PANASONIC_KXLC002, 0 }, 135 136 { NULL } 137}; 138 139int 140esp_pcmcia_match(parent, match, aux) 141 struct device *parent; 142 struct cfdata *match; 143 void *aux; 144{ 145 struct pcmcia_attach_args *pa = aux; 146 147 if (pcmcia_product_lookup(pa, esp_pcmcia_products, 148 sizeof esp_pcmcia_products[0], NULL) != NULL) 149 return (1); 150 return (0); 151} 152 153void 154esp_pcmcia_attach(parent, self, aux) 155 struct device *parent, *self; 156 void *aux; 157{ 158 struct esp_pcmcia_softc *esc = (void *)self; 159 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 160 struct pcmcia_attach_args *pa = aux; 161 struct pcmcia_config_entry *cfe; 162 struct pcmcia_function *pf = pa->pf; 163 const struct pcmcia_product *pp; 164 165 esc->sc_pf = pf; 166 167 for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL; 168 cfe = SIMPLEQ_NEXT(cfe, cfe_list)) { 169 if (cfe->num_memspace != 0 || 170 cfe->num_iospace != 1) 171 continue; 172 173 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 174 cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0) 175 break; 176 } 177 178 if (cfe == 0) { 179 printf(": can't alloc i/o space\n"); 180 goto no_config_entry; 181 } 182 183 /* Enable the card. */ 184 pcmcia_function_init(pf, cfe); 185 if (pcmcia_function_enable(pf)) { 186 printf(": function enable failed\n"); 187 goto enable_failed; 188 } 189 190 /* Map in the I/O space */ 191 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size, 192 &esc->sc_pcioh, &esc->sc_io_window)) { 193 printf(": can't map i/o space\n"); 194 goto iomap_failed; 195 } 196 197 pp = pcmcia_product_lookup(pa, esp_pcmcia_products, 198 sizeof esp_pcmcia_products[0], NULL); 199 if (pp == NULL) { 200 printf("\n"); 201 panic("esp_pcmcia_attach: impossible"); 202 } 203 204 printf(": %s\n", pp->pp_name); 205 206 esp_pcmcia_init(esc); 207 208 /* 209 * Initialize nca board itself. 210 */ 211 esc->sc_flags |= ESP_PCMCIA_ATTACHING; 212 ncr53c9x_attach(sc, &esp_pci_adapter, NULL); 213 esc->sc_flags &= ~ESP_PCMCIA_ATTACHING; 214 esc->sc_flags |= ESP_PCMCIA_ATTACHED; 215 return; 216 217iomap_failed: 218 /* Disable the device. */ 219 pcmcia_function_disable(esc->sc_pf); 220 221enable_failed: 222 /* Unmap our I/O space. */ 223 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 224 225no_config_entry: 226 return; 227} 228 229void 230esp_pcmcia_init(esc) 231 struct esp_pcmcia_softc *esc; 232{ 233 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 234 bus_space_tag_t iot = esc->sc_pcioh.iot; 235 bus_space_handle_t ioh = esc->sc_pcioh.ioh; 236 237 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 238 239 sc->sc_glue = &esp_pcmcia_glue; 240 241#ifdef ESP_PCMCIA_POLL 242 callout_init(&esc->sc_poll_ch); 243#endif 244 245 sc->sc_rev = NCR_VARIANT_ESP406; 246 sc->sc_id = 7; 247 sc->sc_freq = 40; 248 /* try -PARENB -SLOW */ 249 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 250 /* try +FE */ 251 sc->sc_cfg2 = NCRCFG2_SCSI2; 252 /* try -IDM -FSCSI -FCLK */ 253 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 254 NCRESPCFG3_FSCSI; 255 sc->sc_cfg4 = NCRCFG4_ACTNEG; 256 /* try +INTP */ 257 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 258 sc->sc_minsync = 0; 259 sc->sc_maxxfer = 64 * 1024; 260 261 bus_space_write_1(iot, ioh, NCR_CFG5, sc->sc_cfg5); 262 263 bus_space_write_1(iot, ioh, NCR_PIOI, 0); 264 bus_space_write_1(iot, ioh, NCR_PSTAT, 0); 265 bus_space_write_1(iot, ioh, 0x09, 0x24); 266 267 bus_space_write_1(iot, ioh, NCR_CFG4, sc->sc_cfg4); 268} 269 270int 271esp_pcmcia_detach(self, flags) 272 struct device *self; 273 int flags; 274{ 275 struct esp_pcmcia_softc *esc = (void *)self; 276 int error; 277 278 if ((esc->sc_flags & ESP_PCMCIA_ATTACHED) == 0) { 279 /* Nothing to detach. */ 280 return (0); 281 } 282 283 error = ncr53c9x_detach(&esc->sc_ncr53c9x, flags); 284 if (error) 285 return (error); 286 287 /* Unmap our i/o window and i/o space. */ 288 pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window); 289 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 290 291 return (0); 292} 293 294int 295esp_pcmcia_enable(arg, onoff) 296 void *arg; 297 int onoff; 298{ 299 struct esp_pcmcia_softc *esc = arg; 300 301 if (onoff) { 302#ifdef ESP_PCMCIA_POLL 303 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 304#else 305 /* Establish the interrupt handler. */ 306 esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO, 307 ncr53c9x_intr, &esc->sc_ncr53c9x); 308 if (esc->sc_ih == NULL) { 309 printf("%s: couldn't establish interrupt handler\n", 310 esc->sc_ncr53c9x.sc_dev.dv_xname); 311 return (EIO); 312 } 313#endif 314 315 /* 316 * If attach is in progress, we know that card power is 317 * enabled and chip will be initialized later. 318 * Otherwise, enable and reset now. 319 */ 320 if ((esc->sc_flags & ESP_PCMCIA_ATTACHING) == 0) { 321 if (pcmcia_function_enable(esc->sc_pf)) { 322 printf("%s: couldn't enable PCMCIA function\n", 323 esc->sc_ncr53c9x.sc_dev.dv_xname); 324 pcmcia_intr_disestablish(esc->sc_pf, 325 esc->sc_ih); 326 return (EIO); 327 } 328 329 /* Initialize only chip. */ 330 ncr53c9x_init(&esc->sc_ncr53c9x, 0); 331 } 332 } else { 333 pcmcia_function_disable(esc->sc_pf); 334#ifdef ESP_PCMCIA_POLL 335 callout_stop(&esc->sc_poll_ch); 336#else 337 pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih); 338#endif 339 } 340 341 return (0); 342} 343 344#ifdef ESP_PCMCIA_POLL 345void 346esp_pcmcia_poll(arg) 347 void *arg; 348{ 349 struct esp_pcmcia_softc *esc = arg; 350 351 (void) ncr53c9x_intr(&esc->sc_ncr53c9x); 352 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 353} 354#endif 355 356/* 357 * Glue functions. 358 */ 359u_char 360esp_pcmcia_read_reg(sc, reg) 361 struct ncr53c9x_softc *sc; 362 int reg; 363{ 364 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 365 u_char v; 366 367 v = bus_space_read_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg); 368 return v; 369} 370 371void 372esp_pcmcia_write_reg(sc, reg, val) 373 struct ncr53c9x_softc *sc; 374 int reg; 375 u_char val; 376{ 377 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 378 u_char v = val; 379 380 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 381 v = NCRCMD_TRANS; 382 bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg, v); 383} 384 385int 386esp_pcmcia_dma_isintr(sc) 387 struct ncr53c9x_softc *sc; 388{ 389 390 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 391} 392 393void 394esp_pcmcia_dma_reset(sc) 395 struct ncr53c9x_softc *sc; 396{ 397 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 398 399 esc->sc_active = 0; 400 esc->sc_tc = 0; 401} 402 403int 404esp_pcmcia_dma_intr(sc) 405 struct ncr53c9x_softc *sc; 406{ 407 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 408 u_char *p; 409 u_int espphase, espstat, espintr; 410 int cnt; 411 412 if (esc->sc_active == 0) { 413 printf("%s: dma_intr--inactive DMA\n", sc->sc_dev.dv_xname); 414 return -1; 415 } 416 417 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 418 esc->sc_active = 0; 419 return 0; 420 } 421 422 cnt = *esc->sc_pdmalen; 423 if (*esc->sc_pdmalen == 0) { 424 printf("%s: data interrupt, but no count left\n", 425 sc->sc_dev.dv_xname); 426 } 427 428 p = *esc->sc_dmaaddr; 429 espphase = sc->sc_phase; 430 espstat = (u_int) sc->sc_espstat; 431 espintr = (u_int) sc->sc_espintr; 432 do { 433 if (esc->sc_datain) { 434 *p++ = NCR_READ_REG(sc, NCR_FIFO); 435 cnt--; 436 if (espphase == DATA_IN_PHASE) 437 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 438 else 439 esc->sc_active = 0; 440 } else { 441 if (espphase == DATA_OUT_PHASE || 442 espphase == MESSAGE_OUT_PHASE) { 443 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 444 cnt--; 445 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 446 } else 447 esc->sc_active = 0; 448 } 449 450 if (esc->sc_active) { 451 while (!(NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT)); 452 espstat = NCR_READ_REG(sc, NCR_STAT); 453 espintr = NCR_READ_REG(sc, NCR_INTR); 454 espphase = (espintr & NCRINTR_DIS) 455 ? /* Disconnected */ BUSFREE_PHASE 456 : espstat & PHASE_MASK; 457 } 458 } while (esc->sc_active && espintr); 459 sc->sc_phase = espphase; 460 sc->sc_espstat = (u_char) espstat; 461 sc->sc_espintr = (u_char) espintr; 462 *esc->sc_dmaaddr = p; 463 *esc->sc_pdmalen = cnt; 464 465 if (*esc->sc_pdmalen == 0) 466 esc->sc_tc = NCRSTAT_TC; 467 sc->sc_espstat |= esc->sc_tc; 468 return 0; 469} 470 471int 472esp_pcmcia_dma_setup(sc, addr, len, datain, dmasize) 473 struct ncr53c9x_softc *sc; 474 caddr_t *addr; 475 size_t *len; 476 int datain; 477 size_t *dmasize; 478{ 479 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 480 481 esc->sc_dmaaddr = addr; 482 esc->sc_pdmalen = len; 483 esc->sc_datain = datain; 484 esc->sc_dmasize = *dmasize; 485 esc->sc_tc = 0; 486 487 return 0; 488} 489 490void 491esp_pcmcia_dma_go(sc) 492 struct ncr53c9x_softc *sc; 493{ 494 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 495 496 esc->sc_active = 1; 497} 498 499void 500esp_pcmcia_dma_stop(sc) 501 struct ncr53c9x_softc *sc; 502{ 503} 504 505int 506esp_pcmcia_dma_isactive(sc) 507 struct ncr53c9x_softc *sc; 508{ 509 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 510 511 return (esc->sc_active); 512} 513