esp_pcmcia.c revision 1.35
1 /* $NetBSD: esp_pcmcia.c,v 1.35 2008/04/13 04:55:53 tsutsui 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 1.35 2008/04/13 04:55:53 tsutsui 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 <sys/bus.h> 48 #include <sys/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 uint8_t **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(device_t, cfdata_t, void *); 86 int esp_pcmcia_validate_config(struct pcmcia_config_entry *); 87 void esp_pcmcia_attach(device_t, device_t, void *); 88 void esp_pcmcia_init(struct esp_pcmcia_softc *); 89 int esp_pcmcia_detach(device_t, int); 90 int esp_pcmcia_enable(device_t, int); 91 92 CFATTACH_DECL_NEW(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 uint8_t esp_pcmcia_read_reg(struct ncr53c9x_softc *, int); 102 void esp_pcmcia_write_reg(struct ncr53c9x_softc *, int, uint8_t); 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 *, uint8_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 = __arraycount(esp_pcmcia_products); 133 134 int 135 esp_pcmcia_match(device_t parent, cfdata_t cf, void *aux) 136 { 137 struct pcmcia_attach_args *pa = aux; 138 139 if (pcmcia_product_lookup(pa, esp_pcmcia_products, esp_pcmcia_nproducts, 140 sizeof(esp_pcmcia_products[0]), NULL)) 141 return 1; 142 return 0; 143 } 144 145 int 146 esp_pcmcia_validate_config(struct pcmcia_config_entry *cfe) 147 { 148 149 if (cfe->iftype != PCMCIA_IFTYPE_IO || 150 cfe->num_memspace != 0 || 151 cfe->num_iospace != 1) 152 return EINVAL; 153 return 0; 154 } 155 156 void 157 esp_pcmcia_attach(device_t parent, device_t self, void *aux) 158 { 159 struct esp_pcmcia_softc *esc = device_private(self); 160 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 161 struct pcmcia_attach_args *pa = aux; 162 struct pcmcia_config_entry *cfe; 163 struct pcmcia_function *pf = pa->pf; 164 int error; 165 166 sc->sc_dev = self; 167 168 esc->sc_pf = pf; 169 170 error = pcmcia_function_configure(pf, esp_pcmcia_validate_config); 171 if (error) { 172 aprint_error_dev(self, "configure failed, error=%d\n", 173 error); 174 return; 175 } 176 177 cfe = pf->cfe; 178 esc->sc_iot = cfe->iospace[0].handle.iot; 179 esc->sc_ioh = cfe->iospace[0].handle.ioh; 180 esp_pcmcia_init(esc); 181 182 aprint_normal("%s", device_xname(self)); 183 184 sc->sc_adapter.adapt_minphys = minphys; 185 sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request; 186 sc->sc_adapter.adapt_enable = esp_pcmcia_enable; 187 188 ncr53c9x_attach(sc); 189 esc->sc_state = ESP_PCMCIA_ATTACHED; 190 } 191 192 void 193 esp_pcmcia_init(struct esp_pcmcia_softc *esc) 194 { 195 struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; 196 197 /* id 7, clock 40M, parity ON, sync OFF, fast ON, slow ON */ 198 199 sc->sc_glue = &esp_pcmcia_glue; 200 201 #ifdef ESP_PCMCIA_POLL 202 callout_init(&esc->sc_poll_ch, 0); 203 #endif 204 205 sc->sc_rev = NCR_VARIANT_ESP406; 206 sc->sc_id = 7; 207 sc->sc_freq = 40; 208 /* try -PARENB -SLOW */ 209 sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB | NCRCFG1_SLOW; 210 /* try +FE */ 211 sc->sc_cfg2 = NCRCFG2_SCSI2; 212 /* try -IDM -FSCSI -FCLK */ 213 sc->sc_cfg3 = NCRESPCFG3_CDB | NCRESPCFG3_FCLK | NCRESPCFG3_IDM | 214 NCRESPCFG3_FSCSI; 215 sc->sc_cfg4 = NCRCFG4_ACTNEG; 216 /* try +INTP */ 217 sc->sc_cfg5 = NCRCFG5_CRS1 | NCRCFG5_AADDR | NCRCFG5_PTRINC; 218 sc->sc_minsync = 0; 219 sc->sc_maxxfer = 64 * 1024; 220 } 221 222 int 223 esp_pcmcia_detach(struct device *self, int flags) 224 { 225 struct esp_pcmcia_softc *sc = device_private(self); 226 int error; 227 228 if (sc->sc_state != ESP_PCMCIA_ATTACHED) 229 return 0; 230 231 error = ncr53c9x_detach(&sc->sc_ncr53c9x, flags); 232 if (error) 233 return error; 234 235 pcmcia_function_unconfigure(sc->sc_pf); 236 237 return 0; 238 } 239 240 int 241 esp_pcmcia_enable(struct device *self, int onoff) 242 { 243 struct esp_pcmcia_softc *sc = device_private(self); 244 int error; 245 246 if (onoff) { 247 #ifdef ESP_PCMCIA_POLL 248 callout_reset(&sc->sc_poll_ch, 1, esp_pcmcia_poll, sc); 249 #else 250 /* Establish the interrupt handler. */ 251 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 252 ncr53c9x_intr, &sc->sc_ncr53c9x); 253 if (!sc->sc_ih) 254 return EIO; 255 #endif 256 257 error = pcmcia_function_enable(sc->sc_pf); 258 if (error) { 259 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 260 sc->sc_ih = 0; 261 return error; 262 } 263 264 /* Initialize only chip. */ 265 ncr53c9x_init(&sc->sc_ncr53c9x, 0); 266 } else { 267 pcmcia_function_disable(sc->sc_pf); 268 #ifdef ESP_PCMCIA_POLL 269 callout_stop(&sc->sc_poll_ch); 270 #else 271 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 272 sc->sc_ih = 0; 273 #endif 274 } 275 276 return 0; 277 } 278 279 #ifdef ESP_PCMCIA_POLL 280 void 281 esp_pcmcia_poll(void *arg) 282 { 283 struct esp_pcmcia_softc *esc = arg; 284 285 (void)ncr53c9x_intr(&esc->sc_ncr53c9x); 286 callout_reset(&esc->sc_poll_ch, 1, esp_pcmcia_poll, esc); 287 } 288 #endif 289 290 /* 291 * Glue functions. 292 */ 293 uint8_t 294 esp_pcmcia_read_reg(struct ncr53c9x_softc *sc, int reg) 295 { 296 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 297 298 return bus_space_read_1(esc->sc_iot, esc->sc_ioh, reg); 299 } 300 301 void 302 esp_pcmcia_write_reg(struct ncr53c9x_softc *sc, int reg, uint8_t val) 303 { 304 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 305 uint8_t v = val; 306 307 if (reg == NCR_CMD && v == (NCRCMD_TRANS|NCRCMD_DMA)) 308 v = NCRCMD_TRANS; 309 bus_space_write_1(esc->sc_iot, esc->sc_ioh, reg, v); 310 } 311 312 int 313 esp_pcmcia_dma_isintr(struct ncr53c9x_softc *sc) 314 { 315 316 return NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT; 317 } 318 319 void 320 esp_pcmcia_dma_reset(struct ncr53c9x_softc *sc) 321 { 322 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 323 324 esc->sc_active = 0; 325 esc->sc_tc = 0; 326 } 327 328 int 329 esp_pcmcia_dma_intr(struct ncr53c9x_softc *sc) 330 { 331 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 332 uint8_t *p; 333 u_int espphase, espstat, espintr; 334 int cnt; 335 336 if (esc->sc_active == 0) { 337 printf("%s: dma_intr--inactive DMA\n", 338 device_xname(sc->sc_dev)); 339 return -1; 340 } 341 342 if ((sc->sc_espintr & NCRINTR_BS) == 0) { 343 esc->sc_active = 0; 344 return 0; 345 } 346 347 cnt = *esc->sc_pdmalen; 348 if (*esc->sc_pdmalen == 0) { 349 printf("%s: data interrupt, but no count left\n", 350 device_xname(sc->sc_dev)); 351 } 352 353 p = *esc->sc_dmaaddr; 354 espphase = sc->sc_phase; 355 espstat = (u_int)sc->sc_espstat; 356 espintr = (u_int)sc->sc_espintr; 357 do { 358 if (esc->sc_datain) { 359 *p++ = NCR_READ_REG(sc, NCR_FIFO); 360 cnt--; 361 if (espphase == DATA_IN_PHASE) 362 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 363 else 364 esc->sc_active = 0; 365 } else { 366 if (espphase == DATA_OUT_PHASE || 367 espphase == MESSAGE_OUT_PHASE) { 368 NCR_WRITE_REG(sc, NCR_FIFO, *p++); 369 cnt--; 370 NCR_WRITE_REG(sc, NCR_CMD, NCRCMD_TRANS); 371 } else 372 esc->sc_active = 0; 373 } 374 375 if (esc->sc_active) { 376 while ((NCR_READ_REG(sc, NCR_STAT) & NCRSTAT_INT) == 0) 377 ; 378 espstat = NCR_READ_REG(sc, NCR_STAT); 379 espintr = NCR_READ_REG(sc, NCR_INTR); 380 espphase = (espintr & NCRINTR_DIS) 381 ? /* Disconnected */ BUSFREE_PHASE 382 : espstat & PHASE_MASK; 383 } 384 } while (esc->sc_active && espintr); 385 sc->sc_phase = espphase; 386 sc->sc_espstat = (uint8_t)espstat; 387 sc->sc_espintr = (uint8_t)espintr; 388 *esc->sc_dmaaddr = p; 389 *esc->sc_pdmalen = cnt; 390 391 if (*esc->sc_pdmalen == 0) 392 esc->sc_tc = NCRSTAT_TC; 393 sc->sc_espstat |= esc->sc_tc; 394 return 0; 395 } 396 397 int 398 esp_pcmcia_dma_setup(struct ncr53c9x_softc *sc, uint8_t **addr, size_t *len, 399 int datain, size_t *dmasize) 400 { 401 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 402 403 esc->sc_dmaaddr = addr; 404 esc->sc_pdmalen = len; 405 esc->sc_datain = datain; 406 esc->sc_dmasize = *dmasize; 407 esc->sc_tc = 0; 408 409 return 0; 410 } 411 412 void 413 esp_pcmcia_dma_go(struct ncr53c9x_softc *sc) 414 { 415 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 416 417 esc->sc_active = 1; 418 } 419 420 void 421 esp_pcmcia_dma_stop(struct ncr53c9x_softc *sc) 422 { 423 } 424 425 int 426 esp_pcmcia_dma_isactive(sc) 427 struct ncr53c9x_softc *sc; 428 { 429 struct esp_pcmcia_softc *esc = (struct esp_pcmcia_softc *)sc; 430 431 return esc->sc_active; 432 } 433
Indexes created Fri Oct 03 15:10:06 GMT 2025