esp_pcmcia.c revision 1.12
1/* $NetBSD: esp_pcmcia.c,v 1.12 2002/09/27 20:40:55 thorpej 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 1.12 2002/09/27 20:40:55 thorpej 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 61struct 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 85int esp_pcmcia_match __P((struct device *, struct cfdata *, void *)); 86void esp_pcmcia_attach __P((struct device *, struct device *, void *)); 87void esp_pcmcia_init __P((struct esp_pcmcia_softc *)); 88int esp_pcmcia_detach __P((struct device *, int)); 89int esp_pcmcia_enable __P((void *, int)); 90 91const 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 100void esp_pcmcia_poll __P((void *)); 101#endif 102u_char esp_pcmcia_read_reg __P((struct ncr53c9x_softc *, int)); 103void esp_pcmcia_write_reg __P((struct ncr53c9x_softc *, int, u_char)); 104int esp_pcmcia_dma_isintr __P((struct ncr53c9x_softc *)); 105void esp_pcmcia_dma_reset __P((struct ncr53c9x_softc *)); 106int esp_pcmcia_dma_intr __P((struct ncr53c9x_softc *)); 107int esp_pcmcia_dma_setup __P((struct ncr53c9x_softc *, caddr_t *, 108 size_t *, int, size_t *)); 109void esp_pcmcia_dma_go __P((struct ncr53c9x_softc *)); 110void esp_pcmcia_dma_stop __P((struct ncr53c9x_softc *)); 111int esp_pcmcia_dma_isactive __P((struct ncr53c9x_softc *)); 112 113struct 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 126const 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 133int 134esp_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 147void 148esp_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 SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 162 if (cfe->num_memspace != 0 || 163 cfe->num_iospace != 1) 164 continue; 165 166 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 167 cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0) 168 break; 169 } 170 171 if (cfe == 0) { 172 printf(": can't alloc i/o space\n"); 173 goto no_config_entry; 174 } 175 176 /* Enable the card. */ 177 pcmcia_function_init(pf, cfe); 178 if (pcmcia_function_enable(pf)) { 179 printf(": function enable failed\n"); 180 goto enable_failed; 181 } 182 183 /* Map in the I/O space */ 184 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size, 185 &esc->sc_pcioh, &esc->sc_io_window)) { 186 printf(": can't map i/o space\n"); 187 goto iomap_failed; 188 } 189 190 pp = pcmcia_product_lookup(pa, esp_pcmcia_products, 191 sizeof esp_pcmcia_products[0], NULL); 192 if (pp == NULL) { 193 printf("\n"); 194 panic("esp_pcmcia_attach: impossible"); 195 } 196 197 printf(": %s\n", pp->pp_name); 198 199 esp_pcmcia_init(esc); 200 201 /* 202 * Initialize nca board itself. 203 */ 204 esc->sc_flags |= ESP_PCMCIA_ATTACHING; 205 sc->sc_adapter.adapt_minphys = minphys; 206 sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request; 207 ncr53c9x_attach(sc); 208 esc->sc_flags &= ~ESP_PCMCIA_ATTACHING; 209 esc->sc_flags |= ESP_PCMCIA_ATTACHED; 210 return; 211 212iomap_failed: 213 /* Disable the device. */ 214 pcmcia_function_disable(esc->sc_pf); 215 216enable_failed: 217 /* Unmap our I/O space. */ 218 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 219 220no_config_entry: 221 return; 222} 223 224void 225esp_pcmcia_init(esc) 226 struct esp_pcmcia_softc *esc; 227{ 228 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 229 bus_space_tag_t iot = esc->sc_pcioh.iot; 230 bus_space_handle_t ioh = esc->sc_pcioh.ioh; 231 232 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 233 234 sc->sc_glue = &esp_pcmcia_glue; 235 236#ifdef ESP_PCMCIA_POLL 237 callout_init(&esc->sc_poll_ch); 238#endif 239 240 sc->sc_rev = NCR_VARIANT_ESP406; 241 sc->sc_id = 7; 242 sc->sc_freq = 40; 243 /* try -PARENB -SLOW */ 244 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 245 /* try +FE */ 246 sc->sc_cfg2 = NCRCFG2_SCSI2; 247 /* try -IDM -FSCSI -FCLK */ 248 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 249 NCRESPCFG3_FSCSI; 250 sc->sc_cfg4 = NCRCFG4_ACTNEG; 251 /* try +INTP */ 252 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 253 sc->sc_minsync = 0; 254 sc->sc_maxxfer = 64 * 1024; 255 256 bus_space_write_1(iot, ioh, NCR_CFG5, sc->sc_cfg5); 257 258 bus_space_write_1(iot, ioh, NCR_PIOI, 0); 259 bus_space_write_1(iot, ioh, NCR_PSTAT, 0); 260 bus_space_write_1(iot, ioh, 0x09, 0x24); 261 262 bus_space_write_1(iot, ioh, NCR_CFG4, sc->sc_cfg4); 263} 264 265int 266esp_pcmcia_detach(self, flags) 267 struct device *self; 268 int flags; 269{ 270 struct esp_pcmcia_softc *esc = (void *)self; 271 int error; 272 273 if ((esc->sc_flags & ESP_PCMCIA_ATTACHED) == 0) { 274 /* Nothing to detach. */ 275 return (0); 276 } 277 278 error = ncr53c9x_detach(&esc->sc_ncr53c9x, flags); 279 if (error) 280 return (error); 281 282 /* Unmap our i/o window and i/o space. */ 283 pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window); 284 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 285 286 return (0); 287} 288 289int 290esp_pcmcia_enable(arg, onoff) 291 void *arg; 292 int onoff; 293{ 294 struct esp_pcmcia_softc *esc = arg; 295 296 if (onoff) { 297#ifdef ESP_PCMCIA_POLL 298 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 299#else 300 /* Establish the interrupt handler. */ 301 esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO, 302 ncr53c9x_intr, &esc->sc_ncr53c9x); 303 if (esc->sc_ih == NULL) { 304 printf("%s: couldn't establish interrupt handler\n", 305 esc->sc_ncr53c9x.sc_dev.dv_xname); 306 return (EIO); 307 } 308#endif 309 310 /* 311 * If attach is in progress, we know that card power is 312 * enabled and chip will be initialized later. 313 * Otherwise, enable and reset now. 314 */ 315 if ((esc->sc_flags & ESP_PCMCIA_ATTACHING) == 0) { 316 if (pcmcia_function_enable(esc->sc_pf)) { 317 printf("%s: couldn't enable PCMCIA function\n", 318 esc->sc_ncr53c9x.sc_dev.dv_xname); 319 pcmcia_intr_disestablish(esc->sc_pf, 320 esc->sc_ih); 321 return (EIO); 322 } 323 324 /* Initialize only chip. */ 325 ncr53c9x_init(&esc->sc_ncr53c9x, 0); 326 } 327 } else { 328 pcmcia_function_disable(esc->sc_pf); 329#ifdef ESP_PCMCIA_POLL 330 callout_stop(&esc->sc_poll_ch); 331#else 332 pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih); 333#endif 334 } 335 336 return (0); 337} 338 339#ifdef ESP_PCMCIA_POLL 340void 341esp_pcmcia_poll(arg) 342 void *arg; 343{ 344 struct esp_pcmcia_softc *esc = arg; 345 346 (void) ncr53c9x_intr(&esc->sc_ncr53c9x); 347 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 348} 349#endif 350 351/* 352 * Glue functions. 353 */ 354u_char 355esp_pcmcia_read_reg(sc, reg) 356 struct ncr53c9x_softc *sc; 357 int reg; 358{ 359 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 360 u_char v; 361 362 v = bus_space_read_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg); 363 return v; 364} 365 366void 367esp_pcmcia_write_reg(sc, reg, val) 368 struct ncr53c9x_softc *sc; 369 int reg; 370 u_char val; 371{ 372 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 373 u_char v = val; 374 375 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 376 v = NCRCMD_TRANS; 377 bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, reg, v); 378} 379 380int 381esp_pcmcia_dma_isintr(sc) 382 struct ncr53c9x_softc *sc; 383{ 384 385 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 386} 387 388void 389esp_pcmcia_dma_reset(sc) 390 struct ncr53c9x_softc *sc; 391{ 392 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 393 394 esc->sc_active = 0; 395 esc->sc_tc = 0; 396} 397 398int 399esp_pcmcia_dma_intr(sc) 400 struct ncr53c9x_softc *sc; 401{ 402 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 403 u_char *p; 404 u_int espphase, espstat, espintr; 405 int cnt; 406 407 if (esc->sc_active == 0) { 408 printf("%s: dma_intr--inactive DMA\n", sc->sc_dev.dv_xname); 409 return -1; 410 } 411 412 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 413 esc->sc_active = 0; 414 return 0; 415 } 416 417 cnt = *esc->sc_pdmalen; 418 if (*esc->sc_pdmalen == 0) { 419 printf("%s: data interrupt, but no count left\n", 420 sc->sc_dev.dv_xname); 421 } 422 423 p = *esc->sc_dmaaddr; 424 espphase = sc->sc_phase; 425 espstat = (u_int) sc->sc_espstat; 426 espintr = (u_int) sc->sc_espintr; 427 do { 428 if (esc->sc_datain) { 429 *p++ = NCR_READ_REG(sc, NCR_FIFO); 430 cnt--; 431 if (espphase == DATA_IN_PHASE) 432 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 433 else 434 esc->sc_active = 0; 435 } else { 436 if (espphase == DATA_OUT_PHASE || 437 espphase == MESSAGE_OUT_PHASE) { 438 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 439 cnt--; 440 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 441 } else 442 esc->sc_active = 0; 443 } 444 445 if (esc->sc_active) { 446 while (!(NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT)); 447 espstat = NCR_READ_REG(sc, NCR_STAT); 448 espintr = NCR_READ_REG(sc, NCR_INTR); 449 espphase = (espintr & NCRINTR_DIS) 450 ? /* Disconnected */ BUSFREE_PHASE 451 : espstat & PHASE_MASK; 452 } 453 } while (esc->sc_active && espintr); 454 sc->sc_phase = espphase; 455 sc->sc_espstat = (u_char) espstat; 456 sc->sc_espintr = (u_char) espintr; 457 *esc->sc_dmaaddr = p; 458 *esc->sc_pdmalen = cnt; 459 460 if (*esc->sc_pdmalen == 0) 461 esc->sc_tc = NCRSTAT_TC; 462 sc->sc_espstat |= esc->sc_tc; 463 return 0; 464} 465 466int 467esp_pcmcia_dma_setup(sc, addr, len, datain, dmasize) 468 struct ncr53c9x_softc *sc; 469 caddr_t *addr; 470 size_t *len; 471 int datain; 472 size_t *dmasize; 473{ 474 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 475 476 esc->sc_dmaaddr = addr; 477 esc->sc_pdmalen = len; 478 esc->sc_datain = datain; 479 esc->sc_dmasize = *dmasize; 480 esc->sc_tc = 0; 481 482 return 0; 483} 484 485void 486esp_pcmcia_dma_go(sc) 487 struct ncr53c9x_softc *sc; 488{ 489 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 490 491 esc->sc_active = 1; 492} 493 494void 495esp_pcmcia_dma_stop(sc) 496 struct ncr53c9x_softc *sc; 497{ 498} 499 500int 501esp_pcmcia_dma_isactive(sc) 502 struct ncr53c9x_softc *sc; 503{ 504 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 505 506 return (esc->sc_active); 507} 508