nca_pcmcia.c revision 1.16
1 /* $NetBSD: nca_pcmcia.c,v 1.16 2004/08/10 20:25:03 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: nca_pcmcia.c,v 1.16 2004/08/10 20:25:03 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/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_function *sc_pf; /* our PCMCIA function */ 67 void *sc_ih; /* interrupt handler */ 68 69 int sc_state; 70 #define NCA_PCMCIA_ATTACH1 1 71 #define NCA_PCMCIA_ATTACH2 2 72 #define NCA_PCMCIA_ATTACHED 3 73 }; 74 75 int nca_pcmcia_match __P((struct device *, struct cfdata *, void *)); 76 int nca_pcmcia_validate_config __P((struct pcmcia_config_entry *)); 77 void nca_pcmcia_attach __P((struct device *, struct device *, void *)); 78 int nca_pcmcia_detach __P((struct device *, int)); 79 int nca_pcmcia_enable __P((struct device *, int)); 80 81 CFATTACH_DECL(nca_pcmcia, sizeof(struct nca_pcmcia_softc), 82 nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL); 83 84 #define MIN_DMA_LEN 128 85 86 /* Options for disconnect/reselect, DMA, and interrupts. */ 87 #define NCA_NO_DISCONNECT 0x00ff 88 #define NCA_NO_PARITY_CHK 0xff00 89 90 const struct pcmcia_product nca_pcmcia_products[] = { 91 { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID, 92 PCMCIA_CIS_INVALID }, 93 }; 94 const size_t nca_pcmcia_nproducts = 95 sizeof(nca_pcmcia_products) / sizeof(nca_pcmcia_products[0]); 96 97 int 98 nca_pcmcia_match(parent, match, aux) 99 struct device *parent; 100 struct cfdata *match; 101 void *aux; 102 { 103 struct pcmcia_attach_args *pa = aux; 104 105 if (pcmcia_product_lookup(pa, nca_pcmcia_products, nca_pcmcia_nproducts, 106 sizeof(nca_pcmcia_products[0]), NULL)) 107 return (1); 108 return (0); 109 } 110 111 int 112 nca_pcmcia_validate_config(cfe) 113 struct pcmcia_config_entry *cfe; 114 { 115 if (cfe->iftype != PCMCIA_IFTYPE_IO || 116 cfe->num_memspace != 0 || 117 cfe->num_iospace != 1) 118 return (EINVAL); 119 return (0); 120 } 121 122 void 123 nca_pcmcia_attach(parent, self, aux) 124 struct device *parent, *self; 125 void *aux; 126 { 127 struct nca_pcmcia_softc *esc = (void *)self; 128 struct ncr5380_softc *sc = &esc->sc_ncr5380; 129 struct pcmcia_attach_args *pa = aux; 130 struct pcmcia_config_entry *cfe; 131 struct pcmcia_function *pf = pa->pf; 132 int flags; 133 int error; 134 135 esc->sc_pf = pf; 136 137 error = pcmcia_function_configure(pf, nca_pcmcia_validate_config); 138 if (error) { 139 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 140 error); 141 return; 142 } 143 144 cfe = pf->cfe; 145 sc->sc_regt = cfe->iospace[0].handle.iot; 146 sc->sc_regh = cfe->iospace[0].handle.ioh; 147 148 /* Initialize 5380 compatible register offsets. */ 149 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 150 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 151 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 152 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 153 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 154 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 155 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 156 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 157 158 sc->sc_rev = NCR_VARIANT_NCR53C400; 159 160 /* 161 * MD function pointers used by the MI code. 162 */ 163 sc->sc_pio_out = ncr5380_pio_out; 164 sc->sc_pio_in = ncr5380_pio_in; 165 sc->sc_dma_alloc = NULL; 166 sc->sc_dma_free = NULL; 167 sc->sc_dma_setup = NULL; 168 sc->sc_dma_start = NULL; 169 sc->sc_dma_poll = NULL; 170 sc->sc_dma_eop = NULL; 171 sc->sc_dma_stop = NULL; 172 sc->sc_intr_on = NULL; 173 sc->sc_intr_off = NULL; 174 175 /* 176 * Support the "options" (config file flags). 177 * Disconnect/reselect is a per-target mask. 178 * Interrupts and DMA are per-controller. 179 */ 180 #if 0 181 flags = 0x0000; /* no options */ 182 #else 183 flags = 0xffff; /* all options except force poll */ 184 #endif 185 186 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 187 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 188 sc->sc_min_dma_len = MIN_DMA_LEN; 189 190 error = nca_pcmcia_enable(self, 1); 191 if (error) 192 goto fail; 193 194 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 195 196 esc->sc_state = NCA_PCMCIA_ATTACH1; 197 ncr5380_attach(sc); 198 if (esc->sc_state == NCA_PCMCIA_ATTACH1) 199 nca_pcmcia_disable(self, 0); 200 esc->sc_state = NCA_PCMCIA_ATTACHED; 201 return; 202 203 fail: 204 pcmcia_function_unconfigure(pf); 205 } 206 207 int 208 nca_pcmcia_detach(self, flags) 209 struct device *self; 210 int flags; 211 { 212 struct nca_pcmcia_softc *sc = (void *)self; 213 int error; 214 215 if (sc->sc_state != NCA_PCMCIA_ATTACHED) 216 return (0); 217 218 error = ncr5380_detach(&sc->sc_ncr5380, flags); 219 if (error) 220 return (error); 221 222 pcmcia_function_unconfigure(sc->sc_pf); 223 224 return (0); 225 } 226 227 int 228 nca_pcmcia_enable(arg, onoff) 229 struct device *arg; 230 int onoff; 231 { 232 struct nca_pcmcia_softc *sc = (struct nca_pcmcia_softc*)arg; 233 int error; 234 235 if (onoff) { 236 /* 237 * If attach is in progress, we already have the device 238 * powered up. 239 */ 240 if (sc->sc_state == NCA_PCMCIA_ATTACH1) { 241 sc->sc_state = NCA_PCMCIA_ATTACH2; 242 } else { 243 /* Establish the interrupt handler. */ 244 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 245 ncr5380_intr, &sc->sc_ncr5380); 246 if (!sc->sc_ih) 247 return (EIO); 248 249 error = pcmcia_function_enable(sc->sc_pf); 250 if (error) { 251 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 252 sc->sc_ih = 0; 253 return (error); 254 } 255 256 /* Initialize only chip. */ 257 ncr5380_init(&sc->sc_ncr5380); 258 } 259 } else { 260 pcmcia_function_disable(sc->sc_pf); 261 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 262 sc->sc_ih = 0; 263 } 264 265 return (0); 266 } 267
Indexes created Sun Oct 26 21:10:03 GMT 2025