nca_pcmcia.c revision 1.7
1 /* $NetBSD: nca_pcmcia.c,v 1.7 2002/09/27 20:41:07 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: nca_pcmcia.c,v 1.7 2002/09/27 20:41:07 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/ncr5380reg.h> 59 #include <dev/ic/ncr5380var.h> 60 #include <dev/ic/ncr53c400reg.h> 61 62 struct nca_pcmcia_softc { 63 struct ncr5380_softc sc_ncr5380; /* glue to MI code */ 64 65 /* PCMCIA-specific goo. */ 66 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 67 int sc_io_window; /* our i/o window */ 68 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 69 void *sc_ih; /* interrupt handler */ 70 int sc_flags; 71 #define NCA_PCMCIA_ATTACHED 1 /* attach completed */ 72 #define NCA_PCMCIA_ATTACHING 2 /* attach in progress */ 73 }; 74 75 int nca_pcmcia_match __P((struct device *, struct cfdata *, void *)); 76 void nca_pcmcia_attach __P((struct device *, struct device *, void *)); 77 int nca_pcmcia_detach __P((struct device *, int)); 78 int nca_pcmcia_enable __P((struct device *, int)); 79 80 const struct cfattach nca_pcmcia_ca = { 81 sizeof(struct nca_pcmcia_softc), nca_pcmcia_match, nca_pcmcia_attach, 82 nca_pcmcia_detach 83 }; 84 85 #define MIN_DMA_LEN 128 86 87 /* Options for disconnect/reselect, DMA, and interrupts. */ 88 #define NCA_NO_DISCONNECT 0x00ff 89 #define NCA_NO_PARITY_CHK 0xff00 90 91 const struct pcmcia_product nca_pcmcia_products[] = { 92 93 { NULL } 94 }; 95 96 int 97 nca_pcmcia_match(parent, match, aux) 98 struct device *parent; 99 struct cfdata *match; 100 void *aux; 101 { 102 struct pcmcia_attach_args *pa = aux; 103 104 if (pcmcia_product_lookup(pa, nca_pcmcia_products, 105 sizeof nca_pcmcia_products[0], NULL) != NULL) 106 return (1); 107 return (0); 108 } 109 110 void 111 nca_pcmcia_attach(parent, self, aux) 112 struct device *parent, *self; 113 void *aux; 114 { 115 struct nca_pcmcia_softc *esc = (void *)self; 116 struct ncr5380_softc *sc = &esc->sc_ncr5380; 117 struct pcmcia_attach_args *pa = aux; 118 struct pcmcia_config_entry *cfe; 119 struct pcmcia_function *pf = pa->pf; 120 const struct pcmcia_product *pp; 121 int flags; 122 123 esc->sc_pf = pf; 124 125 SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 126 if (cfe->num_memspace != 0 || 127 cfe->num_iospace != 1) 128 continue; 129 130 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 131 cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0) 132 break; 133 } 134 135 if (cfe == 0) { 136 printf(": can't alloc i/o space\n"); 137 goto no_config_entry; 138 } 139 140 /* Enable the card. */ 141 pcmcia_function_init(pf, cfe); 142 if (pcmcia_function_enable(pf)) { 143 printf(": function enable failed\n"); 144 goto enable_failed; 145 } 146 147 /* Map in the I/O space */ 148 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size, 149 &esc->sc_pcioh, &esc->sc_io_window)) { 150 printf(": can't map i/o space\n"); 151 goto iomap_failed; 152 } 153 154 pp = pcmcia_product_lookup(pa, nca_pcmcia_products, 155 sizeof nca_pcmcia_products[0], NULL); 156 if (pp == NULL) { 157 printf("\n"); 158 panic("nca_pcmcia_attach: impossible"); 159 } 160 161 printf(": %s\n", pp->pp_name); 162 163 /* We can enable and disable the controller. */ 164 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 165 166 /* Reset into 5380-compat. mode */ 167 bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, C400_CSR, 168 C400_CSR_5380_ENABLE); 169 170 /* Initialize 5380 compatible register offsets. */ 171 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 172 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 173 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 174 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 175 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 176 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 177 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 178 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 179 180 sc->sc_rev = NCR_VARIANT_NCR53C400; 181 182 /* 183 * MD function pointers used by the MI code. 184 */ 185 sc->sc_pio_out = ncr5380_pio_out; 186 sc->sc_pio_in = ncr5380_pio_in; 187 sc->sc_dma_alloc = NULL; 188 sc->sc_dma_free = NULL; 189 sc->sc_dma_setup = NULL; 190 sc->sc_dma_start = NULL; 191 sc->sc_dma_poll = NULL; 192 sc->sc_dma_eop = NULL; 193 sc->sc_dma_stop = NULL; 194 sc->sc_intr_on = NULL; 195 sc->sc_intr_off = NULL; 196 197 198 /* 199 * Support the "options" (config file flags). 200 * Disconnect/reselect is a per-target mask. 201 * Interrupts and DMA are per-controller. 202 */ 203 #if 0 204 flags = 0x0000; /* no options */ 205 #else 206 flags = 0xffff; /* all options except force poll */ 207 #endif 208 209 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 210 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 211 sc->sc_min_dma_len = MIN_DMA_LEN; 212 213 /* 214 * Initialize fields used by the MI code 215 */ 216 sc->sc_regt = esc->sc_pcioh.iot; 217 sc->sc_regh = esc->sc_pcioh.ioh; 218 219 /* 220 * Initialize nca board itself. 221 */ 222 esc->sc_flags |= NCA_PCMCIA_ATTACHING; 223 ncr5380_attach(sc); 224 esc->sc_flags &= ~NCA_PCMCIA_ATTACHING; 225 esc->sc_flags |= NCA_PCMCIA_ATTACHED; 226 return; 227 228 iomap_failed: 229 /* Disable the device. */ 230 pcmcia_function_disable(esc->sc_pf); 231 232 enable_failed: 233 /* Unmap our I/O space. */ 234 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 235 236 no_config_entry: 237 return; 238 } 239 240 int 241 nca_pcmcia_detach(self, flags) 242 struct device *self; 243 int flags; 244 { 245 struct nca_pcmcia_softc *esc = (void *)self; 246 int error; 247 248 if ((esc->sc_flags & NCA_PCMCIA_ATTACHED) == 0) { 249 /* Nothing to detach. */ 250 return (0); 251 } 252 253 if ((error = ncr5380_detach(&esc->sc_ncr5380, flags)) != 0) 254 return (error); 255 256 /* Unmap our i/o window and i/o space. */ 257 pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window); 258 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 259 260 return (0); 261 } 262 263 int 264 nca_pcmcia_enable(arg, onoff) 265 struct device *arg; 266 int onoff; 267 { 268 struct nca_pcmcia_softc *esc = (struct nca_pcmcia_softc*)arg; 269 270 if (onoff) { 271 /* Establish the interrupt handler. */ 272 esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO, 273 ncr5380_intr, &esc->sc_ncr5380); 274 if (esc->sc_ih == NULL) { 275 printf("%s: couldn't establish interrupt handler\n", 276 esc->sc_ncr5380.sc_dev.dv_xname); 277 return (EIO); 278 } 279 280 /* 281 * If attach is in progress, we know that card power is 282 * enabled and chip will be initialized later. 283 * Otherwise, enable and reset now. 284 */ 285 if ((esc->sc_flags & NCA_PCMCIA_ATTACHING) == 0) { 286 if (pcmcia_function_enable(esc->sc_pf)) { 287 printf("%s: couldn't enable PCMCIA function\n", 288 esc->sc_ncr5380.sc_dev.dv_xname); 289 pcmcia_intr_disestablish(esc->sc_pf, 290 esc->sc_ih); 291 return (EIO); 292 } 293 294 /* Initialize only chip. */ 295 ncr5380_init(&esc->sc_ncr5380); 296 } 297 } else { 298 pcmcia_function_disable(esc->sc_pf); 299 pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih); 300 } 301 302 return (0); 303 } 304
Indexes created Sat Oct 25 16:10:12 GMT 2025