1 /* $NetBSD: nca_pcmcia.c,v 1.24 2008/04/28 20:23:56 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: nca_pcmcia.c,v 1.24 2008/04/28 20:23:56 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/buf.h> 39 40 #include <sys/bus.h> 41 #include <sys/intr.h> 42 43 #include <dev/scsipi/scsi_all.h> 44 #include <dev/scsipi/scsipi_all.h> 45 #include <dev/scsipi/scsiconf.h> 46 47 #include <dev/pcmcia/pcmciareg.h> 48 #include <dev/pcmcia/pcmciavar.h> 49 #include <dev/pcmcia/pcmciadevs.h> 50 51 #include <dev/ic/ncr5380reg.h> 52 #include <dev/ic/ncr5380var.h> 53 #include <dev/ic/ncr53c400reg.h> 54 55 struct nca_pcmcia_softc { 56 struct ncr5380_softc sc_ncr5380; /* glue to MI code */ 57 58 /* PCMCIA-specific goo. */ 59 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 60 void *sc_ih; /* interrupt handler */ 61 62 int sc_state; 63 #define NCA_PCMCIA_ATTACHED 3 64 }; 65 66 int nca_pcmcia_match(device_t, cfdata_t, void *); 67 int nca_pcmcia_validate_config(struct pcmcia_config_entry *); 68 void nca_pcmcia_attach(device_t, device_t, void *); 69 int nca_pcmcia_detach(device_t, int); 70 int nca_pcmcia_enable(device_t, int); 71 72 CFATTACH_DECL_NEW(nca_pcmcia, sizeof(struct nca_pcmcia_softc), 73 nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL); 74 75 #define MIN_DMA_LEN 128 76 77 /* Options for disconnect/reselect, DMA, and interrupts. */ 78 #define NCA_NO_DISCONNECT 0x00ff 79 #define NCA_NO_PARITY_CHK 0xff00 80 81 const struct pcmcia_product nca_pcmcia_products[] = { 82 { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID, 83 PCMCIA_CIS_INVALID }, 84 }; 85 const size_t nca_pcmcia_nproducts = 86 __arraycount(nca_pcmcia_products); 87 88 int 89 nca_pcmcia_match(device_t parent, cfdata_t cf, void *aux) 90 { 91 struct pcmcia_attach_args *pa = aux; 92 93 if (pcmcia_product_lookup(pa, nca_pcmcia_products, nca_pcmcia_nproducts, 94 sizeof(nca_pcmcia_products[0]), NULL)) 95 return 1; 96 return 0; 97 } 98 99 int 100 nca_pcmcia_validate_config(struct pcmcia_config_entry *cfe) 101 { 102 103 if (cfe->iftype != PCMCIA_IFTYPE_IO || 104 cfe->num_memspace != 0 || 105 cfe->num_iospace != 1) 106 return EINVAL; 107 return 0; 108 } 109 110 void 111 nca_pcmcia_attach(device_t parent, device_t self, void *aux) 112 { 113 struct nca_pcmcia_softc *esc = device_private(self); 114 struct ncr5380_softc *sc = &esc->sc_ncr5380; 115 struct pcmcia_attach_args *pa = aux; 116 struct pcmcia_config_entry *cfe; 117 struct pcmcia_function *pf = pa->pf; 118 int flags; 119 int error; 120 121 sc->sc_dev = self; 122 esc->sc_pf = pf; 123 124 error = pcmcia_function_configure(pf, nca_pcmcia_validate_config); 125 if (error) { 126 aprint_error_dev(self, "configure failed, error=%d\n", error); 127 return; 128 } 129 130 cfe = pf->cfe; 131 sc->sc_regt = cfe->iospace[0].handle.iot; 132 sc->sc_regh = cfe->iospace[0].handle.ioh; 133 134 /* Initialize 5380 compatible register offsets. */ 135 sc->sci_r0 = C400_5380_REG_OFFSET + 0; 136 sc->sci_r1 = C400_5380_REG_OFFSET + 1; 137 sc->sci_r2 = C400_5380_REG_OFFSET + 2; 138 sc->sci_r3 = C400_5380_REG_OFFSET + 3; 139 sc->sci_r4 = C400_5380_REG_OFFSET + 4; 140 sc->sci_r5 = C400_5380_REG_OFFSET + 5; 141 sc->sci_r6 = C400_5380_REG_OFFSET + 6; 142 sc->sci_r7 = C400_5380_REG_OFFSET + 7; 143 144 sc->sc_rev = NCR_VARIANT_NCR53C400; 145 146 /* 147 * MD function pointers used by the MI code. 148 */ 149 sc->sc_pio_out = ncr5380_pio_out; 150 sc->sc_pio_in = ncr5380_pio_in; 151 sc->sc_dma_alloc = NULL; 152 sc->sc_dma_free = NULL; 153 sc->sc_dma_setup = NULL; 154 sc->sc_dma_start = NULL; 155 sc->sc_dma_poll = NULL; 156 sc->sc_dma_eop = NULL; 157 sc->sc_dma_stop = NULL; 158 sc->sc_intr_on = NULL; 159 sc->sc_intr_off = NULL; 160 161 /* 162 * Support the "options" (config file flags). 163 * Disconnect/reselect is a per-target mask. 164 * Interrupts and DMA are per-controller. 165 */ 166 #if 0 167 flags = 0x0000; /* no options */ 168 #else 169 flags = 0xffff; /* all options except force poll */ 170 #endif 171 172 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT); 173 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8; 174 sc->sc_min_dma_len = MIN_DMA_LEN; 175 176 error = nca_pcmcia_enable(self, 1); 177 if (error) 178 goto fail; 179 180 sc->sc_adapter.adapt_enable = nca_pcmcia_enable; 181 sc->sc_adapter.adapt_refcnt = 1; 182 183 ncr5380_attach(sc); 184 scsipi_adapter_delref(&sc->sc_adapter); 185 esc->sc_state = NCA_PCMCIA_ATTACHED; 186 return; 187 188 fail: 189 pcmcia_function_unconfigure(pf); 190 } 191 192 int 193 nca_pcmcia_detach(device_t self, int flags) 194 { 195 struct nca_pcmcia_softc *sc = device_private(self); 196 int error; 197 198 if (sc->sc_state != NCA_PCMCIA_ATTACHED) 199 return 0; 200 201 error = ncr5380_detach(&sc->sc_ncr5380, flags); 202 if (error) 203 return error; 204 205 pcmcia_function_unconfigure(sc->sc_pf); 206 207 return 0; 208 } 209 210 int 211 nca_pcmcia_enable(device_t self, int onoff) 212 { 213 struct nca_pcmcia_softc *sc = device_private(self); 214 int error; 215 216 if (onoff) { 217 /* Establish the interrupt handler. */ 218 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO, 219 ncr5380_intr, &sc->sc_ncr5380); 220 if (sc->sc_ih == NULL) 221 return EIO; 222 223 error = pcmcia_function_enable(sc->sc_pf); 224 if (error) { 225 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 226 sc->sc_ih = 0; 227 return error; 228 } 229 230 /* Initialize only chip. */ 231 ncr5380_init(&sc->sc_ncr5380); 232 } else { 233 pcmcia_function_disable(sc->sc_pf); 234 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); 235 sc->sc_ih = 0; 236 } 237 238 return 0; 239 } 240
Indexes created Tue Sep 23 23:09:58 GMT 2025