esp_pcmcia.c revision 1.23
1 /* $NetBSD: esp_pcmcia.c,v 1.23 2004/08/10 19:12:25 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2004 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 1.23 2004/08/10 19:12:25 mycroft 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_function *sc_pf; /* our PCMCIA function */ 74 void *sc_ih; /* interrupt handler */ 75 #ifdef ESP_PCMCIA_POLL 76 struct callout sc_poll_ch; 77 #endif 78 bus_space_tag_t sc_iot; 79 bus_space_handle_t sc_ioh; 80 81 int sc_state; 82 #define ESP_PCMCIA_ATTACH1 1 83 #define ESP_PCMCIA_ATTACH2 2 84 #define ESP_PCMCIA_ATTACHED 3 85 }; 86 87 int esp_pcmcia_match __P((struct device *, struct cfdata *, void *)); 88 int esp_pcmcia_validate_config __P((struct pcmcia_config_entry *)); 89 void esp_pcmcia_attach __P((struct device *, struct device *, void *)); 90 void esp_pcmcia_init __P((struct esp_pcmcia_softc *)); 91 int esp_pcmcia_detach __P((struct device *, int)); 92 int esp_pcmcia_enable __P((struct device *, int)); 93 94 CFATTACH_DECL(esp_pcmcia, sizeof(struct esp_pcmcia_softc), 95 esp_pcmcia_match, esp_pcmcia_attach, esp_pcmcia_detach, NULL); 96 97 /* 98 * Functions and the switch for the MI code. 99 */ 100 #ifdef ESP_PCMCIA_POLL 101 void esp_pcmcia_poll __P((void *)); 102 #endif 103 u_char esp_pcmcia_read_reg __P((struct ncr53c9x_softc *, int)); 104 void esp_pcmcia_write_reg __P((struct ncr53c9x_softc *, int, u_char)); 105 int esp_pcmcia_dma_isintr __P((struct ncr53c9x_softc *)); 106 void esp_pcmcia_dma_reset __P((struct ncr53c9x_softc *)); 107 int esp_pcmcia_dma_intr __P((struct ncr53c9x_softc *)); 108 int esp_pcmcia_dma_setup __P((struct ncr53c9x_softc *, caddr_t *, 109 size_t *, int, size_t *)); 110 void esp_pcmcia_dma_go __P((struct ncr53c9x_softc *)); 111 void esp_pcmcia_dma_stop __P((struct ncr53c9x_softc *)); 112 int esp_pcmcia_dma_isactive __P((struct ncr53c9x_softc *)); 113 114 const struct ncr53c9x_glue esp_pcmcia_glue = { 115 esp_pcmcia_read_reg, 116 esp_pcmcia_write_reg, 117 esp_pcmcia_dma_isintr, 118 esp_pcmcia_dma_reset, 119 esp_pcmcia_dma_intr, 120 esp_pcmcia_dma_setup, 121 esp_pcmcia_dma_go, 122 esp_pcmcia_dma_stop, 123 esp_pcmcia_dma_isactive, 124 NULL, /* gl_clear_latched_intr */ 125 }; 126 127 const struct pcmcia_product esp_pcmcia_products[] = { 128 { PCMCIA_VENDOR_PANASONIC, PCMCIA_PRODUCT_PANASONIC_KXLC002, 129 PCMCIA_CIS_PANASONIC_KXLC002 }, 130 131 { PCMCIA_VENDOR_RATOC, PCMCIA_PRODUCT_RATOC_REX_9530, 132 PCMCIA_CIS_RATOC_REX_9530 }, 133 }; 134 const size_t esp_pcmcia_nproducts = 135 sizeof(esp_pcmcia_products) / sizeof(esp_pcmcia_products[0]); 136 137 int 138 esp_pcmcia_match(parent, match, aux) 139 struct device *parent; 140 struct cfdata *match; 141 void *aux; 142 { 143 struct pcmcia_attach_args *pa = aux; 144 145 if (pcmcia_product_lookup(pa, esp_pcmcia_products, esp_pcmcia_nproducts, 146 sizeof(esp_pcmcia_products[0]), NULL)) 147 return (1); 148 return (0); 149 } 150 151 int 152 esp_pcmcia_validate_config(cfe) 153 struct pcmcia_config_entry *cfe; 154 { 155 if (cfe->iftype != PCMCIA_IFTYPE_IO || 156 cfe->num_memspace != 0 || 157 cfe->num_iospace != 1) 158 return (EINVAL); 159 return (0); 160 } 161 162 void 163 esp_pcmcia_attach(parent, self, aux) 164 struct device *parent, *self; 165 void *aux; 166 { 167 struct esp_pcmcia_softc *esc = (void *)self; 168 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 169 struct pcmcia_attach_args *pa = aux; 170 struct pcmcia_config_entry *cfe; 171 struct pcmcia_function *pf = pa->pf; 172 int error; 173 174 esc->sc_pf = pf; 175 176 error = pcmcia_function_configure(pf, esp_pcmcia_validate_config); 177 if (error) { 178 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 179 error); 180 return; 181 } 182 183 cfe = pf->cfe; 184 esc->sc_iot = cfe->iospace[0].handle.iot; 185 esc->sc_ioh = cfe->iospace[0].handle.ioh; 186 esp_pcmcia_init(esc); 187 188 error = esp_pcmcia_enable(self, 1); 189 if (error) 190 goto fail; 191 192 sc->sc_adapter.adapt_minphys = minphys; 193 sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request; 194 sc->sc_adapter.adapt_enable = esp_pcmcia_enable; 195 196 esc->sc_state = ESP_PCMCIA_ATTACH1; 197 ncr53c9x_attach(sc); 198 if (esc->sc_state == ESP_PCMCIA_ATTACH1) 199 esp_pcmcia_enable(self, 0); 200 esc->sc_state = ESP_PCMCIA_ATTACHED; 201 return; 202 203 fail: 204 pcmcia_function_unconfigure(pf); 205 } 206 207 void 208 esp_pcmcia_init(esc) 209 struct esp_pcmcia_softc *esc; 210 { 211 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 212 213 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 214 215 sc->sc_glue = &esp_pcmcia_glue; 216 217 #ifdef ESP_PCMCIA_POLL 218 callout_init(&esc->sc_poll_ch); 219 #endif 220 221 sc->sc_rev = NCR_VARIANT_ESP406; 222 sc->sc_id = 7; 223 sc->sc_freq = 40; 224 /* try -PARENB -SLOW */ 225 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 226 /* try +FE */ 227 sc->sc_cfg2 = NCRCFG2_SCSI2; 228 /* try -IDM -FSCSI -FCLK */ 229 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 230 NCRESPCFG3_FSCSI; 231 sc->sc_cfg4 = NCRCFG4_ACTNEG; 232 /* try +INTP */ 233 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 234 sc->sc_minsync = 0; 235 sc->sc_maxxfer = 64 * 1024; 236 } 237 238 int 239 esp_pcmcia_detach(self, flags) 240 struct device *self; 241 int flags; 242 { 243 struct esp_pcmcia_softc *sc = (void *)self; 244 int error; 245 246 if (sc->sc_state != ESP_PCMCIA_ATTACHED) 247 return (0); 248 249 error = ncr53c9x_detach(&sc->sc_ncr53c9x, flags); 250 if (error) 251 return (error); 252 253 pcmcia_function_unconfigure(sc->sc_pf); 254 255 return (0); 256 } 257 258 int 259 esp_pcmcia_enable(arg, onoff) 260 struct device *arg; 261 int onoff; 262 { 263 struct esp_pcmcia_softc *sc = (void *)arg; 264 int error; 265 266 if (onoff) { 267 /* 268 * If attach is in progress, we already have the device 269 * powered up. 270 */ 271 if (sc->sc_state == ESP_PCMCIA_ATTACH1) { 272 sc->sc_state = ESP_PCMCIA_ATTACH2; 273 } else { 274 #ifdef ESP_PCMCIA_POLL 275 callout_reset(&sc->sc_poll_ch, 1, esp_pcmcia_poll, sc); 276 #else 277 /* Establish the interrupt handler. */ 278 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 279 ncr53c9x_intr, &sc->sc_ncr53c9x); 280 if (!sc->sc_ih) 281 return (EIO); 282 #endif 283 284 error = pcmcia_function_enable(sc->sc_pf); 285 if (error) { 286 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 287 sc->sc_ih = 0; 288 return (error); 289 } 290 291 /* Initialize only chip. */ 292 ncr53c9x_init(&sc->sc_ncr53c9x, 0); 293 } 294 } else { 295 pcmcia_function_disable(sc->sc_pf); 296 #ifdef ESP_PCMCIA_POLL 297 callout_stop(&sc->sc_poll_ch); 298 #else 299 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 300 sc->sc_ih = 0; 301 #endif 302 } 303 304 return (0); 305 } 306 307 #ifdef ESP_PCMCIA_POLL 308 void 309 esp_pcmcia_poll(arg) 310 void *arg; 311 { 312 struct esp_pcmcia_softc *esc = arg; 313 314 (void) ncr53c9x_intr(&esc->sc_ncr53c9x); 315 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 316 } 317 #endif 318 319 /* 320 * Glue functions. 321 */ 322 u_char 323 esp_pcmcia_read_reg(sc, reg) 324 struct ncr53c9x_softc *sc; 325 int reg; 326 { 327 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 328 u_char v; 329 330 v = bus_space_read_1(esc->sc_iot, esc->sc_ioh, reg); 331 return v; 332 } 333 334 void 335 esp_pcmcia_write_reg(sc, reg, val) 336 struct ncr53c9x_softc *sc; 337 int reg; 338 u_char val; 339 { 340 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 341 u_char v = val; 342 343 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 344 v = NCRCMD_TRANS; 345 bus_space_write_1(esc->sc_iot, esc->sc_ioh, reg, v); 346 } 347 348 int 349 esp_pcmcia_dma_isintr(sc) 350 struct ncr53c9x_softc *sc; 351 { 352 353 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 354 } 355 356 void 357 esp_pcmcia_dma_reset(sc) 358 struct ncr53c9x_softc *sc; 359 { 360 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 361 362 esc->sc_active = 0; 363 esc->sc_tc = 0; 364 } 365 366 int 367 esp_pcmcia_dma_intr(sc) 368 struct ncr53c9x_softc *sc; 369 { 370 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 371 u_char *p; 372 u_int espphase, espstat, espintr; 373 int cnt; 374 375 if (esc->sc_active == 0) { 376 printf("%s: dma_intr--inactive DMA\n", sc->sc_dev.dv_xname); 377 return -1; 378 } 379 380 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 381 esc->sc_active = 0; 382 return 0; 383 } 384 385 cnt = *esc->sc_pdmalen; 386 if (*esc->sc_pdmalen == 0) { 387 printf("%s: data interrupt, but no count left\n", 388 sc->sc_dev.dv_xname); 389 } 390 391 p = *esc->sc_dmaaddr; 392 espphase = sc->sc_phase; 393 espstat = (u_int) sc->sc_espstat; 394 espintr = (u_int) sc->sc_espintr; 395 do { 396 if (esc->sc_datain) { 397 *p++ = NCR_READ_REG(sc, NCR_FIFO); 398 cnt--; 399 if (espphase == DATA_IN_PHASE) 400 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 401 else 402 esc->sc_active = 0; 403 } else { 404 if (espphase == DATA_OUT_PHASE || 405 espphase == MESSAGE_OUT_PHASE) { 406 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 407 cnt--; 408 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 409 } else 410 esc->sc_active = 0; 411 } 412 413 if (esc->sc_active) { 414 while (!(NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT)); 415 espstat = NCR_READ_REG(sc, NCR_STAT); 416 espintr = NCR_READ_REG(sc, NCR_INTR); 417 espphase = (espintr & NCRINTR_DIS) 418 ? /* Disconnected */ BUSFREE_PHASE 419 : espstat & PHASE_MASK; 420 } 421 } while (esc->sc_active && espintr); 422 sc->sc_phase = espphase; 423 sc->sc_espstat = (u_char) espstat; 424 sc->sc_espintr = (u_char) espintr; 425 *esc->sc_dmaaddr = p; 426 *esc->sc_pdmalen = cnt; 427 428 if (*esc->sc_pdmalen == 0) 429 esc->sc_tc = NCRSTAT_TC; 430 sc->sc_espstat |= esc->sc_tc; 431 return 0; 432 } 433 434 int 435 esp_pcmcia_dma_setup(sc, addr, len, datain, dmasize) 436 struct ncr53c9x_softc *sc; 437 caddr_t *addr; 438 size_t *len; 439 int datain; 440 size_t *dmasize; 441 { 442 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 443 444 esc->sc_dmaaddr = addr; 445 esc->sc_pdmalen = len; 446 esc->sc_datain = datain; 447 esc->sc_dmasize = *dmasize; 448 esc->sc_tc = 0; 449 450 return 0; 451 } 452 453 void 454 esp_pcmcia_dma_go(sc) 455 struct ncr53c9x_softc *sc; 456 { 457 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 458 459 esc->sc_active = 1; 460 } 461 462 void 463 esp_pcmcia_dma_stop(sc) 464 struct ncr53c9x_softc *sc; 465 { 466 } 467 468 int 469 esp_pcmcia_dma_isactive(sc) 470 struct ncr53c9x_softc *sc; 471 { 472 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 473 474 return (esc->sc_active); 475 } 476
Indexes created Fri Oct 03 15:10:06 GMT 2025