nca_pcmcia.c revision 1.13
1 /* $NetBSD: nca_pcmcia.c,v 1.13 2004/08/10 16:04:16 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 1.13 2004/08/10 16:04:16 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 92 { NULL } 93 }; 94 95 int 96 nca_pcmcia_match(parent, match, aux) 97 struct device *parent; 98 struct cfdata *match; 99 void *aux; 100 { 101 struct pcmcia_attach_args *pa = aux; 102 103 if (pcmcia_product_lookup(pa, nca_pcmcia_products, 104 sizeof nca_pcmcia_products[0], NULL) != NULL) 105 return (1); 106 return (0); 107 } 108 109 int 110 nca_pcmcia_validate_config(cfe) 111 struct pcmcia_config_entry *cfe; 112 { 113 if (cfe->iftype != PCMCIA_IFTYPE_IO || 114 cfe->num_memspace != 0 || 115 cfe->num_iospace != 1) 116 return (EINVAL); 117 return (0); 118 } 119 120 void 121 nca_pcmcia_attach(parent, self, aux) 122 struct device *parent, *self; 123 void *aux; 124 { 125 struct nca_pcmcia_softc *esc = (void *)self; 126 struct ncr5380_softc *sc = &esc->sc_ncr5380; 127 struct pcmcia_attach_args *pa = aux; 128 struct pcmcia_config_entry *cfe; 129 struct pcmcia_function *pf = pa->pf; 130 int flags; 131 int error; 132 133 aprint_normal("\n"); 134 esc->sc_pf = pf; 135 136 error = pcmcia_function_configure(pf, nca_pcmcia_validate_config); 137 if (error) { 138 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 139 error); 140 return; 141 } 142 143 cfe = pf->cfe; 144 sc->sc_regt = cfe->iospace[0].handle.iot; 145 sc->sc_regh = cfe->iospace[0].handle.ioh; 146 147 /* Initialize 5380 compatible register offsets. */ 148 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 149 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 150 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 151 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 152 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 153 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 154 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 155 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 156 157 sc->sc_rev = NCR_VARIANT_NCR53C400; 158 159 /* 160 * MD function pointers used by the MI code. 161 */ 162 sc->sc_pio_out = ncr5380_pio_out; 163 sc->sc_pio_in = ncr5380_pio_in; 164 sc->sc_dma_alloc = NULL; 165 sc->sc_dma_free = NULL; 166 sc->sc_dma_setup = NULL; 167 sc->sc_dma_start = NULL; 168 sc->sc_dma_poll = NULL; 169 sc->sc_dma_eop = NULL; 170 sc->sc_dma_stop = NULL; 171 sc->sc_intr_on = NULL; 172 sc->sc_intr_off = NULL; 173 174 /* 175 * Support the "options" (config file flags). 176 * Disconnect/reselect is a per-target mask. 177 * Interrupts and DMA are per-controller. 178 */ 179 #if 0 180 flags = 0x0000; /* no options */ 181 #else 182 flags = 0xffff; /* all options except force poll */ 183 #endif 184 185 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 186 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 187 sc->sc_min_dma_len = MIN_DMA_LEN; 188 189 error = nca_pcmcia_enable(self, 1); 190 if (error) 191 goto fail; 192 193 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 194 195 esc->sc_state = NCA_PCMCIA_ATTACH1; 196 ncr5380_attach(sc); 197 if (esc->sc_state == NCA_PCMCIA_ATTACH1) 198 pcmcia_function_disable(esc->sc_pf); 199 esc->sc_state = NCA_PCMCIA_ATTACHED; 200 return; 201 202 fail: 203 pcmcia_function_unconfigure(pf); 204 } 205 206 int 207 nca_pcmcia_detach(self, flags) 208 struct device *self; 209 int flags; 210 { 211 struct nca_pcmcia_softc *sc = (void *)self; 212 int error; 213 214 if (sc->sc_state != NCA_PCMCIA_ATTACHED) 215 return (0); 216 217 error = ncr5380_detach(&sc->sc_ncr5380, flags); 218 if (error) 219 return (error); 220 221 pcmcia_function_unconfigure(sc->sc_pf); 222 223 return (0); 224 } 225 226 int 227 nca_pcmcia_enable(arg, onoff) 228 struct device *arg; 229 int onoff; 230 { 231 struct nca_pcmcia_softc *sc = (struct nca_pcmcia_softc*)arg; 232 int error; 233 234 if (onoff) { 235 /* 236 * If attach is in progress, we already have the device 237 * powered up. 238 */ 239 if (sc->sc_state == NCA_PCMCIA_ATTACH1) { 240 sc->sc_state = NCA_PCMCIA_ATTACH2; 241 } else { 242 /* Establish the interrupt handler. */ 243 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 244 ncr5380_intr, &sc->sc_ncr5380); 245 if (!sc->sc_ih) 246 return (EIO); 247 248 error = pcmcia_function_enable(sc->sc_pf); 249 if (error) { 250 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 251 sc->sc_ih = 0; 252 return (error); 253 } 254 255 /* Initialize only chip. */ 256 ncr5380_init(&sc->sc_ncr5380); 257 } 258 } else { 259 pcmcia_function_disable(sc->sc_pf); 260 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 261 sc->sc_ih = 0; 262 } 263 264 return (0); 265 } 266
Indexes created Tue Oct 28 07:09:57 GMT 2025