esp_pcmcia.c revision 1.25
1 /* $NetBSD: esp_pcmcia.c,v 1.25 2005/02/04 02:10:45 perry 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 1.25 2005/02/04 02:10:45 perry 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_ATTACHED 3 83 }; 84 85 int esp_pcmcia_match(struct device *, struct cfdata *, void *); 86 int esp_pcmcia_validate_config(struct pcmcia_config_entry *); 87 void esp_pcmcia_attach(struct device *, struct device *, void *); 88 void esp_pcmcia_init(struct esp_pcmcia_softc *); 89 int esp_pcmcia_detach(struct device *, int); 90 int esp_pcmcia_enable(struct device *, int); 91 92 CFATTACH_DECL(esp_pcmcia, sizeof(struct esp_pcmcia_softc), 93 esp_pcmcia_match, esp_pcmcia_attach, esp_pcmcia_detach, NULL); 94 95 /* 96 * Functions and the switch for the MI code. 97 */ 98 #ifdef ESP_PCMCIA_POLL 99 void esp_pcmcia_poll(void *); 100 #endif 101 u_char esp_pcmcia_read_reg(struct ncr53c9x_softc *, int); 102 void esp_pcmcia_write_reg(struct ncr53c9x_softc *, int, u_char); 103 int esp_pcmcia_dma_isintr(struct ncr53c9x_softc *); 104 void esp_pcmcia_dma_reset(struct ncr53c9x_softc *); 105 int esp_pcmcia_dma_intr(struct ncr53c9x_softc *); 106 int esp_pcmcia_dma_setup(struct ncr53c9x_softc *, caddr_t *, 107 size_t *, int, size_t *); 108 void esp_pcmcia_dma_go(struct ncr53c9x_softc *); 109 void esp_pcmcia_dma_stop(struct ncr53c9x_softc *); 110 int esp_pcmcia_dma_isactive(struct ncr53c9x_softc *); 111 112 const struct ncr53c9x_glue esp_pcmcia_glue = { 113 esp_pcmcia_read_reg, 114 esp_pcmcia_write_reg, 115 esp_pcmcia_dma_isintr, 116 esp_pcmcia_dma_reset, 117 esp_pcmcia_dma_intr, 118 esp_pcmcia_dma_setup, 119 esp_pcmcia_dma_go, 120 esp_pcmcia_dma_stop, 121 esp_pcmcia_dma_isactive, 122 NULL, /* gl_clear_latched_intr */ 123 }; 124 125 const struct pcmcia_product esp_pcmcia_products[] = { 126 { PCMCIA_VENDOR_PANASONIC, PCMCIA_PRODUCT_PANASONIC_KXLC002, 127 PCMCIA_CIS_PANASONIC_KXLC002 }, 128 129 { PCMCIA_VENDOR_RATOC, PCMCIA_PRODUCT_RATOC_REX_9530, 130 PCMCIA_CIS_RATOC_REX_9530 }, 131 }; 132 const size_t esp_pcmcia_nproducts = 133 sizeof(esp_pcmcia_products) / sizeof(esp_pcmcia_products[0]); 134 135 int 136 esp_pcmcia_match(parent, match, aux) 137 struct device *parent; 138 struct cfdata *match; 139 void *aux; 140 { 141 struct pcmcia_attach_args *pa = aux; 142 143 if (pcmcia_product_lookup(pa, esp_pcmcia_products, esp_pcmcia_nproducts, 144 sizeof(esp_pcmcia_products[0]), NULL)) 145 return (1); 146 return (0); 147 } 148 149 int 150 esp_pcmcia_validate_config(cfe) 151 struct pcmcia_config_entry *cfe; 152 { 153 if (cfe->iftype != PCMCIA_IFTYPE_IO || 154 cfe->num_memspace != 0 || 155 cfe->num_iospace != 1) 156 return (EINVAL); 157 return (0); 158 } 159 160 void 161 esp_pcmcia_attach(parent, self, aux) 162 struct device *parent, *self; 163 void *aux; 164 { 165 struct esp_pcmcia_softc *esc = (void *)self; 166 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 167 struct pcmcia_attach_args *pa = aux; 168 struct pcmcia_config_entry *cfe; 169 struct pcmcia_function *pf = pa->pf; 170 int error; 171 172 esc->sc_pf = pf; 173 174 error = pcmcia_function_configure(pf, esp_pcmcia_validate_config); 175 if (error) { 176 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 177 error); 178 return; 179 } 180 181 cfe = pf->cfe; 182 esc->sc_iot = cfe->iospace[0].handle.iot; 183 esc->sc_ioh = cfe->iospace[0].handle.ioh; 184 esp_pcmcia_init(esc); 185 186 error = esp_pcmcia_enable(self, 1); 187 if (error) 188 goto fail; 189 190 sc->sc_adapter.adapt_minphys = minphys; 191 sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request; 192 sc->sc_adapter.adapt_enable = esp_pcmcia_enable; 193 sc->sc_adapter.adapt_refcnt = 1; 194 195 ncr53c9x_attach(sc); 196 scsipi_adapter_delref(&sc->sc_adapter); 197 esc->sc_state = ESP_PCMCIA_ATTACHED; 198 return; 199 200 fail: 201 pcmcia_function_unconfigure(pf); 202 } 203 204 void 205 esp_pcmcia_init(esc) 206 struct esp_pcmcia_softc *esc; 207 { 208 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 209 210 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 211 212 sc->sc_glue = &esp_pcmcia_glue; 213 214 #ifdef ESP_PCMCIA_POLL 215 callout_init(&esc->sc_poll_ch); 216 #endif 217 218 sc->sc_rev = NCR_VARIANT_ESP406; 219 sc->sc_id = 7; 220 sc->sc_freq = 40; 221 /* try -PARENB -SLOW */ 222 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 223 /* try +FE */ 224 sc->sc_cfg2 = NCRCFG2_SCSI2; 225 /* try -IDM -FSCSI -FCLK */ 226 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 227 NCRESPCFG3_FSCSI; 228 sc->sc_cfg4 = NCRCFG4_ACTNEG; 229 /* try +INTP */ 230 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 231 sc->sc_minsync = 0; 232 sc->sc_maxxfer = 64 * 1024; 233 } 234 235 int 236 esp_pcmcia_detach(self, flags) 237 struct device *self; 238 int flags; 239 { 240 struct esp_pcmcia_softc *sc = (void *)self; 241 int error; 242 243 if (sc->sc_state != ESP_PCMCIA_ATTACHED) 244 return (0); 245 246 error = ncr53c9x_detach(&sc->sc_ncr53c9x, flags); 247 if (error) 248 return (error); 249 250 pcmcia_function_unconfigure(sc->sc_pf); 251 252 return (0); 253 } 254 255 int 256 esp_pcmcia_enable(arg, onoff) 257 struct device *arg; 258 int onoff; 259 { 260 struct esp_pcmcia_softc *sc = (void *)arg; 261 int error; 262 263 if (onoff) { 264 #ifdef ESP_PCMCIA_POLL 265 callout_reset(&sc->sc_poll_ch, 1, esp_pcmcia_poll, sc); 266 #else 267 /* Establish the interrupt handler. */ 268 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 269 ncr53c9x_intr, &sc->sc_ncr53c9x); 270 if (!sc->sc_ih) 271 return (EIO); 272 #endif 273 274 error = pcmcia_function_enable(sc->sc_pf); 275 if (error) { 276 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 277 sc->sc_ih = 0; 278 return (error); 279 } 280 281 /* Initialize only chip. */ 282 ncr53c9x_init(&sc->sc_ncr53c9x, 0); 283 } else { 284 pcmcia_function_disable(sc->sc_pf); 285 #ifdef ESP_PCMCIA_POLL 286 callout_stop(&sc->sc_poll_ch); 287 #else 288 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 289 sc->sc_ih = 0; 290 #endif 291 } 292 293 return (0); 294 } 295 296 #ifdef ESP_PCMCIA_POLL 297 void 298 esp_pcmcia_poll(arg) 299 void *arg; 300 { 301 struct esp_pcmcia_softc *esc = arg; 302 303 (void) ncr53c9x_intr(&esc->sc_ncr53c9x); 304 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 305 } 306 #endif 307 308 /* 309 * Glue functions. 310 */ 311 u_char 312 esp_pcmcia_read_reg(sc, reg) 313 struct ncr53c9x_softc *sc; 314 int reg; 315 { 316 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 317 u_char v; 318 319 v = bus_space_read_1(esc->sc_iot, esc->sc_ioh, reg); 320 return v; 321 } 322 323 void 324 esp_pcmcia_write_reg(sc, reg, val) 325 struct ncr53c9x_softc *sc; 326 int reg; 327 u_char val; 328 { 329 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 330 u_char v = val; 331 332 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 333 v = NCRCMD_TRANS; 334 bus_space_write_1(esc->sc_iot, esc->sc_ioh, reg, v); 335 } 336 337 int 338 esp_pcmcia_dma_isintr(sc) 339 struct ncr53c9x_softc *sc; 340 { 341 342 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 343 } 344 345 void 346 esp_pcmcia_dma_reset(sc) 347 struct ncr53c9x_softc *sc; 348 { 349 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 350 351 esc->sc_active = 0; 352 esc->sc_tc = 0; 353 } 354 355 int 356 esp_pcmcia_dma_intr(sc) 357 struct ncr53c9x_softc *sc; 358 { 359 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 360 u_char *p; 361 u_int espphase, espstat, espintr; 362 int cnt; 363 364 if (esc->sc_active == 0) { 365 printf("%s: dma_intr--inactive DMA\n", sc->sc_dev.dv_xname); 366 return -1; 367 } 368 369 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 370 esc->sc_active = 0; 371 return 0; 372 } 373 374 cnt = *esc->sc_pdmalen; 375 if (*esc->sc_pdmalen == 0) { 376 printf("%s: data interrupt, but no count left\n", 377 sc->sc_dev.dv_xname); 378 } 379 380 p = *esc->sc_dmaaddr; 381 espphase = sc->sc_phase; 382 espstat = (u_int) sc->sc_espstat; 383 espintr = (u_int) sc->sc_espintr; 384 do { 385 if (esc->sc_datain) { 386 *p++ = NCR_READ_REG(sc, NCR_FIFO); 387 cnt--; 388 if (espphase == DATA_IN_PHASE) 389 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 390 else 391 esc->sc_active = 0; 392 } else { 393 if (espphase == DATA_OUT_PHASE || 394 espphase == MESSAGE_OUT_PHASE) { 395 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 396 cnt--; 397 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 398 } else 399 esc->sc_active = 0; 400 } 401 402 if (esc->sc_active) { 403 while (!(NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT)); 404 espstat = NCR_READ_REG(sc, NCR_STAT); 405 espintr = NCR_READ_REG(sc, NCR_INTR); 406 espphase = (espintr & NCRINTR_DIS) 407 ? /* Disconnected */ BUSFREE_PHASE 408 : espstat & PHASE_MASK; 409 } 410 } while (esc->sc_active && espintr); 411 sc->sc_phase = espphase; 412 sc->sc_espstat = (u_char) espstat; 413 sc->sc_espintr = (u_char) espintr; 414 *esc->sc_dmaaddr = p; 415 *esc->sc_pdmalen = cnt; 416 417 if (*esc->sc_pdmalen == 0) 418 esc->sc_tc = NCRSTAT_TC; 419 sc->sc_espstat |= esc->sc_tc; 420 return 0; 421 } 422 423 int 424 esp_pcmcia_dma_setup(sc, addr, len, datain, dmasize) 425 struct ncr53c9x_softc *sc; 426 caddr_t *addr; 427 size_t *len; 428 int datain; 429 size_t *dmasize; 430 { 431 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 432 433 esc->sc_dmaaddr = addr; 434 esc->sc_pdmalen = len; 435 esc->sc_datain = datain; 436 esc->sc_dmasize = *dmasize; 437 esc->sc_tc = 0; 438 439 return 0; 440 } 441 442 void 443 esp_pcmcia_dma_go(sc) 444 struct ncr53c9x_softc *sc; 445 { 446 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 447 448 esc->sc_active = 1; 449 } 450 451 void 452 esp_pcmcia_dma_stop(sc) 453 struct ncr53c9x_softc *sc; 454 { 455 } 456 457 int 458 esp_pcmcia_dma_isactive(sc) 459 struct ncr53c9x_softc *sc; 460 { 461 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 462 463 return (esc->sc_active); 464 } 465
Indexes created Fri Oct 03 02:09:57 GMT 2025