fdc_pcmcia.c revision 1.7
1 /* $NetBSD: fdc_pcmcia.c,v 1.7 2002/09/06 13:18:43 gehenna Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 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: fdc_pcmcia.c,v 1.7 2002/09/06 13:18:43 gehenna Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/conf.h> 45 #include <sys/device.h> 46 #include <sys/disk.h> 47 #include <sys/buf.h> 48 49 #include <machine/bus.h> 50 #include <machine/intr.h> 51 52 #include <dev/pcmcia/pcmciareg.h> 53 #include <dev/pcmcia/pcmciavar.h> 54 #include <dev/pcmcia/pcmciadevs.h> 55 56 #include <dev/ic/fdcreg.h> 57 #include <dev/ic/fdcvar.h> 58 59 struct fdc_pcmcia_softc { 60 struct fdc_softc sc_fdc; /* real "fdc" softc */ 61 62 /* PCMCIA-specific goo. */ 63 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 64 int sc_io_window; /* our i/o window */ 65 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 66 }; 67 68 int fdc_pcmcia_probe __P((struct device *, struct cfdata *, void *)); 69 void fdc_pcmcia_attach __P((struct device *, struct device *, void *)); 70 static void fdc_conf __P((struct fdc_softc *)); 71 72 struct cfattach fdc_pcmcia_ca = { 73 sizeof(struct fdc_pcmcia_softc), fdc_pcmcia_probe, fdc_pcmcia_attach 74 }; 75 76 static void 77 fdc_conf(fdc) 78 struct fdc_softc *fdc; 79 { 80 bus_space_tag_t iot = fdc->sc_iot; 81 bus_space_handle_t ioh = fdc->sc_ioh; 82 int n; 83 84 /* Figure out what we have */ 85 if (out_fdc_cmd(iot, ioh, FDC_CMD_VERSION) == -1 || 86 (n = fdcresult(fdc, 1)) != 1) 87 return; 88 89 /* Nec765 or equivalent */ 90 if (FDC_ST0(fdc->sc_status[0]) == FDC_ST0_INVL) 91 return; 92 93 #if 0 94 /* ns8477 check */ 95 if (out_fdc_cmd(iot, ioh, FDC_CMD_NSC) == -1 || 96 (n = fdcresult(fdc, 1)) != 1) { 97 printf("NSC command failed\n"); 98 return; 99 } 100 else 101 printf("Version %x\n", fdc->sc_status[0]); 102 #endif 103 104 if (out_fdc_cmd(iot, ioh, FDC_CMD_DUMPREG) == -1 || 105 (n = fdcresult(fdc, -1)) == -1) 106 return; 107 108 /* 109 * Expect 10 bytes of status; one means that it did not 110 * understand the command 111 */ 112 if (n == 1) 113 return; 114 115 /* 116 * Configure controller to use FIFO and 8 bytes of FIFO threshold 117 */ 118 (void)out_fdc_cmd(iot, ioh, FDC_CMD_CONFIGURE); 119 (void)out_fdc(iot, ioh, 0x00); /* doc says 0 */ 120 (void)out_fdc(iot, ioh, 8); /* FIFO is active low. */ 121 (void)out_fdc(iot, ioh, fdc->sc_status[9]); /* same comp */ 122 /* No result phase */ 123 124 /* Lock this configuration */ 125 if (out_fdc_cmd(iot, ioh, FDC_CMD_LOCK(FDC_CMD_FLAGS_LOCK)) == -1 || 126 fdcresult(fdc, 1) != 1) 127 return; 128 } 129 130 int 131 fdc_pcmcia_probe(parent, match, aux) 132 struct device *parent; 133 struct cfdata *match; 134 void *aux; 135 { 136 struct pcmcia_attach_args *pa = aux; 137 struct pcmcia_card *card = pa->card; 138 char *cis[4] = PCMCIA_CIS_YEDATA_EXTERNAL_FDD; 139 140 /* For this card the manufacturer and product are -1 */ 141 if (strcmp(cis[0], card->cis1_info[0]) == 0 && 142 strcmp(cis[1], card->cis1_info[1]) == 0) 143 return 1; 144 145 return 0; 146 } 147 148 149 void 150 fdc_pcmcia_attach(parent, self, aux) 151 struct device *parent, *self; 152 void *aux; 153 { 154 struct fdc_pcmcia_softc *psc = (void *)self; 155 struct fdc_softc *fdc = &psc->sc_fdc; 156 struct pcmcia_attach_args *pa = aux; 157 struct pcmcia_config_entry *cfe; 158 struct pcmcia_function *pf = pa->pf; 159 struct fdc_attach_args fa; 160 161 psc->sc_pf = pf; 162 163 SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 164 if (cfe->num_memspace != 0 || 165 cfe->num_iospace != 1) 166 continue; 167 168 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 169 cfe->iospace[0].length, cfe->iospace[0].length, 170 &psc->sc_pcioh) == 0) 171 break; 172 } 173 174 if (cfe == 0) { 175 printf(": can't alloc i/o space\n"); 176 return; 177 } 178 179 /* Enable the card. */ 180 pcmcia_function_init(pf, cfe); 181 if (pcmcia_function_enable(pf)) { 182 printf(": function enable failed\n"); 183 return; 184 } 185 186 /* Map in the io space */ 187 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size, 188 &psc->sc_pcioh, &psc->sc_io_window)) { 189 printf(": can't map i/o space\n"); 190 return; 191 } 192 193 fdc->sc_iot = psc->sc_pcioh.iot; 194 fdc->sc_ioh = psc->sc_pcioh.ioh; 195 196 fdc->sc_flags = FDC_HEADSETTLE; 197 fdc->sc_state = DEVIDLE; 198 TAILQ_INIT(&fdc->sc_drives); 199 200 if (!fdcfind(fdc->sc_iot, fdc->sc_ioh, 1)) 201 printf(": coundn't find fdc\n%s", fdc->sc_dev.dv_xname); 202 203 printf(": %s\n", PCMCIA_STR_YEDATA_EXTERNAL_FDD); 204 205 fdc_conf(fdc); 206 207 /* Establish the interrupt handler. */ 208 fdc->sc_ih = pcmcia_intr_establish(pa->pf, IPL_BIO, fdchwintr, fdc); 209 if (fdc->sc_ih == NULL) 210 printf("%s: couldn't establish interrupt\n", 211 fdc->sc_dev.dv_xname); 212 213 /* physical limit: four drives per controller. */ 214 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 215 if (fa.fa_drive < 2) 216 fa.fa_deftype = &fd_types[0]; 217 else 218 fa.fa_deftype = NULL; /* unknown */ 219 (void)config_found(self, (void *)&fa, fdprint); 220 } 221 } 222
Indexes created Thu Oct 23 22:10:10 GMT 2025