nca_pcmcia.c revision 1.22
1 /* $NetBSD: nca_pcmcia.c,v 1.22 2007/10/19 12:01:06 ad 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 1.22 2007/10/19 12:01:06 ad 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/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_ATTACHED 3 71 }; 72 73 int nca_pcmcia_match(struct device *, struct cfdata *, void *); 74 int nca_pcmcia_validate_config(struct pcmcia_config_entry *); 75 void nca_pcmcia_attach(struct device *, struct device *, void *); 76 int nca_pcmcia_detach(struct device *, int); 77 int nca_pcmcia_enable(struct device *, int); 78 79 CFATTACH_DECL(nca_pcmcia, sizeof(struct nca_pcmcia_softc), 80 nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL); 81 82 #define MIN_DMA_LEN 128 83 84 /* Options for disconnect/reselect, DMA, and interrupts. */ 85 #define NCA_NO_DISCONNECT 0x00ff 86 #define NCA_NO_PARITY_CHK 0xff00 87 88 const struct pcmcia_product nca_pcmcia_products[] = { 89 { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID, 90 PCMCIA_CIS_INVALID }, 91 }; 92 const size_t nca_pcmcia_nproducts = 93 sizeof(nca_pcmcia_products) / sizeof(nca_pcmcia_products[0]); 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, nca_pcmcia_nproducts, 104 sizeof(nca_pcmcia_products[0]), 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 esc->sc_pf = pf; 134 135 error = pcmcia_function_configure(pf, nca_pcmcia_validate_config); 136 if (error) { 137 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 138 error); 139 return; 140 } 141 142 cfe = pf->cfe; 143 sc->sc_regt = cfe->iospace[0].handle.iot; 144 sc->sc_regh = cfe->iospace[0].handle.ioh; 145 146 /* Initialize 5380 compatible register offsets. */ 147 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 148 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 149 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 150 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 151 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 152 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 153 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 154 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 155 156 sc->sc_rev = NCR_VARIANT_NCR53C400; 157 158 /* 159 * MD function pointers used by the MI code. 160 */ 161 sc->sc_pio_out = ncr5380_pio_out; 162 sc->sc_pio_in = ncr5380_pio_in; 163 sc->sc_dma_alloc = NULL; 164 sc->sc_dma_free = NULL; 165 sc->sc_dma_setup = NULL; 166 sc->sc_dma_start = NULL; 167 sc->sc_dma_poll = NULL; 168 sc->sc_dma_eop = NULL; 169 sc->sc_dma_stop = NULL; 170 sc->sc_intr_on = NULL; 171 sc->sc_intr_off = NULL; 172 173 /* 174 * Support the "options" (config file flags). 175 * Disconnect/reselect is a per-target mask. 176 * Interrupts and DMA are per-controller. 177 */ 178 #if 0 179 flags = 0x0000; /* no options */ 180 #else 181 flags = 0xffff; /* all options except force poll */ 182 #endif 183 184 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 185 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 186 sc->sc_min_dma_len = MIN_DMA_LEN; 187 188 error = nca_pcmcia_enable(self, 1); 189 if (error) 190 goto fail; 191 192 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 193 sc->sc_adapter.adapt_refcnt = 1; 194 195 ncr5380_attach(sc); 196 scsipi_adapter_delref(&sc->sc_adapter); 197 esc->sc_state = NCA_PCMCIA_ATTACHED; 198 return; 199 200 fail: 201 pcmcia_function_unconfigure(pf); 202 } 203 204 int 205 nca_pcmcia_detach(self, flags) 206 struct device *self; 207 int flags; 208 { 209 struct nca_pcmcia_softc *sc = (void *)self; 210 int error; 211 212 if (sc->sc_state != NCA_PCMCIA_ATTACHED) 213 return (0); 214 215 error = ncr5380_detach(&sc->sc_ncr5380, flags); 216 if (error) 217 return (error); 218 219 pcmcia_function_unconfigure(sc->sc_pf); 220 221 return (0); 222 } 223 224 int 225 nca_pcmcia_enable(arg, onoff) 226 struct device *arg; 227 int onoff; 228 { 229 struct nca_pcmcia_softc *sc = (struct nca_pcmcia_softc*)arg; 230 int error; 231 232 if (onoff) { 233 /* Establish the interrupt handler. */ 234 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 235 ncr5380_intr, &sc->sc_ncr5380); 236 if (!sc->sc_ih) 237 return (EIO); 238 239 error = pcmcia_function_enable(sc->sc_pf); 240 if (error) { 241 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 242 sc->sc_ih = 0; 243 return (error); 244 } 245 246 /* Initialize only chip. */ 247 ncr5380_init(&sc->sc_ncr5380); 248 } else { 249 pcmcia_function_disable(sc->sc_pf); 250 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 251 sc->sc_ih = 0; 252 } 253 254 return (0); 255 } 256
Indexes created Mon Oct 27 08:10:08 GMT 2025