nca_pcmcia.c revision 1.5
1 /* $NetBSD: nca_pcmcia.c,v 1.5 2001/11/13 07:26:34 lukem 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 1.5 2001/11/13 07:26:34 lukem 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 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 for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL; 126 cfe = SIMPLEQ_NEXT(cfe, cfe_list)) { 127 if (cfe->num_memspace != 0 || 128 cfe->num_iospace != 1) 129 continue; 130 131 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 132 cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0) 133 break; 134 } 135 136 if (cfe == 0) { 137 printf(": can't alloc i/o space\n"); 138 goto no_config_entry; 139 } 140 141 /* Enable the card. */ 142 pcmcia_function_init(pf, cfe); 143 if (pcmcia_function_enable(pf)) { 144 printf(": function enable failed\n"); 145 goto enable_failed; 146 } 147 148 /* Map in the I/O space */ 149 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size, 150 &esc->sc_pcioh, &esc->sc_io_window)) { 151 printf(": can't map i/o space\n"); 152 goto iomap_failed; 153 } 154 155 pp = pcmcia_product_lookup(pa, nca_pcmcia_products, 156 sizeof nca_pcmcia_products[0], NULL); 157 if (pp == NULL) { 158 printf("\n"); 159 panic("nca_pcmcia_attach: impossible"); 160 } 161 162 printf(": %s\n", pp->pp_name); 163 164 /* We can enable and disable the controller. */ 165 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 166 167 /* Reset into 5380-compat. mode */ 168 bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, C400_CSR, 169 C400_CSR_5380_ENABLE); 170 171 /* Initialize 5380 compatible register offsets. */ 172 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 173 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 174 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 175 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 176 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 177 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 178 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 179 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 180 181 sc->sc_rev = NCR_VARIANT_NCR53C400; 182 183 /* 184 * MD function pointers used by the MI code. 185 */ 186 sc->sc_pio_out = ncr5380_pio_out; 187 sc->sc_pio_in = ncr5380_pio_in; 188 sc->sc_dma_alloc = NULL; 189 sc->sc_dma_free = NULL; 190 sc->sc_dma_setup = NULL; 191 sc->sc_dma_start = NULL; 192 sc->sc_dma_poll = NULL; 193 sc->sc_dma_eop = NULL; 194 sc->sc_dma_stop = NULL; 195 sc->sc_intr_on = NULL; 196 sc->sc_intr_off = NULL; 197 198 199 /* 200 * Support the "options" (config file flags). 201 * Disconnect/reselect is a per-target mask. 202 * Interrupts and DMA are per-controller. 203 */ 204 #if 0 205 flags = 0x0000; /* no options */ 206 #else 207 flags = 0xffff; /* all options except force poll */ 208 #endif 209 210 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 211 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 212 sc->sc_min_dma_len = MIN_DMA_LEN; 213 214 /* 215 * Initialize fields used by the MI code 216 */ 217 sc->sc_regt = esc->sc_pcioh.iot; 218 sc->sc_regh = esc->sc_pcioh.ioh; 219 220 /* 221 * Initialize nca board itself. 222 */ 223 esc->sc_flags |= NCA_PCMCIA_ATTACHING; 224 ncr5380_attach(sc); 225 esc->sc_flags &= ~NCA_PCMCIA_ATTACHING; 226 esc->sc_flags |= NCA_PCMCIA_ATTACHED; 227 return; 228 229 iomap_failed: 230 /* Disable the device. */ 231 pcmcia_function_disable(esc->sc_pf); 232 233 enable_failed: 234 /* Unmap our I/O space. */ 235 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 236 237 no_config_entry: 238 return; 239 } 240 241 int 242 nca_pcmcia_detach(self, flags) 243 struct device *self; 244 int flags; 245 { 246 struct nca_pcmcia_softc *esc = (void *)self; 247 int error; 248 249 if ((esc->sc_flags & NCA_PCMCIA_ATTACHED) == 0) { 250 /* Nothing to detach. */ 251 return (0); 252 } 253 254 if ((error = ncr5380_detach(&esc->sc_ncr5380, flags)) != 0) 255 return (error); 256 257 /* Unmap our i/o window and i/o space. */ 258 pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window); 259 pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh); 260 261 return (0); 262 } 263 264 int 265 nca_pcmcia_enable(arg, onoff) 266 struct device *arg; 267 int onoff; 268 { 269 struct nca_pcmcia_softc *esc = (struct nca_pcmcia_softc*)arg; 270 271 if (onoff) { 272 /* Establish the interrupt handler. */ 273 esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO, 274 ncr5380_intr, &esc->sc_ncr5380); 275 if (esc->sc_ih == NULL) { 276 printf("%s: couldn't establish interrupt handler\n", 277 esc->sc_ncr5380.sc_dev.dv_xname); 278 return (EIO); 279 } 280 281 /* 282 * If attach is in progress, we know that card power is 283 * enabled and chip will be initialized later. 284 * Otherwise, enable and reset now. 285 */ 286 if ((esc->sc_flags & NCA_PCMCIA_ATTACHING) == 0) { 287 if (pcmcia_function_enable(esc->sc_pf)) { 288 printf("%s: couldn't enable PCMCIA function\n", 289 esc->sc_ncr5380.sc_dev.dv_xname); 290 pcmcia_intr_disestablish(esc->sc_pf, 291 esc->sc_ih); 292 return (EIO); 293 } 294 295 /* Initialize only chip. */ 296 ncr5380_init(&esc->sc_ncr5380); 297 } 298 } else { 299 pcmcia_function_disable(esc->sc_pf); 300 pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih); 301 } 302 303 return (0); 304 } 305
Indexes created Tue Oct 28 09:09:52 GMT 2025