fdc_pcmcia.c revision 1.5
1 /* $NetBSD: fdc_pcmcia.c,v 1.5 2001/11/13 07:26:32 lukem 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 1.5 2001/11/13 07:26:32 lukem 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/conf.h> 51 #include <machine/intr.h> 52 53 #include <dev/pcmcia/pcmciareg.h> 54 #include <dev/pcmcia/pcmciavar.h> 55 #include <dev/pcmcia/pcmciadevs.h> 56 57 #include <dev/ic/fdcreg.h> 58 #include <dev/ic/fdcvar.h> 59 60 struct fdc_pcmcia_softc { 61 struct fdc_softc sc_fdc; /* real "fdc" softc */ 62 63 /* PCMCIA-specific goo. */ 64 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 65 int sc_io_window; /* our i/o window */ 66 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 67 }; 68 69 int fdc_pcmcia_probe __P((struct device *, struct cfdata *, void *)); 70 void fdc_pcmcia_attach __P((struct device *, struct device *, void *)); 71 static void fdc_conf __P((struct fdc_softc *)); 72 73 struct cfattach fdc_pcmcia_ca = { 74 sizeof(struct fdc_pcmcia_softc), fdc_pcmcia_probe, fdc_pcmcia_attach 75 }; 76 77 static void 78 fdc_conf(fdc) 79 struct fdc_softc *fdc; 80 { 81 bus_space_tag_t iot = fdc->sc_iot; 82 bus_space_handle_t ioh = fdc->sc_ioh; 83 int n; 84 85 /* Figure out what we have */ 86 if (out_fdc_cmd(iot, ioh, FDC_CMD_VERSION) == -1 || 87 (n = fdcresult(fdc, 1)) != 1) 88 return; 89 90 /* Nec765 or equivalent */ 91 if (FDC_ST0(fdc->sc_status[0]) == FDC_ST0_INVL) 92 return; 93 94 #if 0 95 /* ns8477 check */ 96 if (out_fdc_cmd(iot, ioh, FDC_CMD_NSC) == -1 || 97 (n = fdcresult(fdc, 1)) != 1) { 98 printf("NSC command failed\n"); 99 return; 100 } 101 else 102 printf("Version %x\n", fdc->sc_status[0]); 103 #endif 104 105 if (out_fdc_cmd(iot, ioh, FDC_CMD_DUMPREG) == -1 || 106 (n = fdcresult(fdc, -1)) == -1) 107 return; 108 109 /* 110 * Expect 10 bytes of status; one means that it did not 111 * understand the command 112 */ 113 if (n == 1) 114 return; 115 116 /* 117 * Configure controller to use FIFO and 8 bytes of FIFO threshold 118 */ 119 (void)out_fdc_cmd(iot, ioh, FDC_CMD_CONFIGURE); 120 (void)out_fdc(iot, ioh, 0x00); /* doc says 0 */ 121 (void)out_fdc(iot, ioh, 8); /* FIFO is active low. */ 122 (void)out_fdc(iot, ioh, fdc->sc_status[9]); /* same comp */ 123 /* No result phase */ 124 125 /* Lock this configuration */ 126 if (out_fdc_cmd(iot, ioh, FDC_CMD_LOCK(FDC_CMD_FLAGS_LOCK)) == -1 || 127 fdcresult(fdc, 1) != 1) 128 return; 129 } 130 131 int 132 fdc_pcmcia_probe(parent, match, aux) 133 struct device *parent; 134 struct cfdata *match; 135 void *aux; 136 { 137 struct pcmcia_attach_args *pa = aux; 138 struct pcmcia_card *card = pa->card; 139 char *cis[4] = PCMCIA_CIS_YEDATA_EXTERNAL_FDD; 140 141 /* For this card the manufacturer and product are -1 */ 142 if (strcmp(cis[0], card->cis1_info[0]) == 0 && 143 strcmp(cis[1], card->cis1_info[1]) == 0) 144 return 1; 145 146 return 0; 147 } 148 149 150 void 151 fdc_pcmcia_attach(parent, self, aux) 152 struct device *parent, *self; 153 void *aux; 154 { 155 struct fdc_pcmcia_softc *psc = (void *)self; 156 struct fdc_softc *fdc = &psc->sc_fdc; 157 struct pcmcia_attach_args *pa = aux; 158 struct pcmcia_config_entry *cfe; 159 struct pcmcia_function *pf = pa->pf; 160 struct fdc_attach_args fa; 161 162 psc->sc_pf = pf; 163 164 for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL; 165 cfe = SIMPLEQ_NEXT(cfe, cfe_list)) { 166 if (cfe->num_memspace != 0 || 167 cfe->num_iospace != 1) 168 continue; 169 170 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 171 cfe->iospace[0].length, cfe->iospace[0].length, 172 &psc->sc_pcioh) == 0) 173 break; 174 } 175 176 if (cfe == 0) { 177 printf(": can't alloc i/o space\n"); 178 return; 179 } 180 181 /* Enable the card. */ 182 pcmcia_function_init(pf, cfe); 183 if (pcmcia_function_enable(pf)) { 184 printf(": function enable failed\n"); 185 return; 186 } 187 188 /* Map in the io space */ 189 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size, 190 &psc->sc_pcioh, &psc->sc_io_window)) { 191 printf(": can't map i/o space\n"); 192 return; 193 } 194 195 fdc->sc_iot = psc->sc_pcioh.iot; 196 fdc->sc_ioh = psc->sc_pcioh.ioh; 197 198 fdc->sc_flags = FDC_HEADSETTLE; 199 fdc->sc_state = DEVIDLE; 200 TAILQ_INIT(&fdc->sc_drives); 201 202 if (!fdcfind(fdc->sc_iot, fdc->sc_ioh, 1)) 203 printf(": coundn't find fdc\n%s", fdc->sc_dev.dv_xname); 204 205 printf(": %s\n", PCMCIA_STR_YEDATA_EXTERNAL_FDD); 206 207 fdc_conf(fdc); 208 209 /* Establish the interrupt handler. */ 210 fdc->sc_ih = pcmcia_intr_establish(pa->pf, IPL_BIO, fdchwintr, fdc); 211 if (fdc->sc_ih == NULL) 212 printf("%s: couldn't establish interrupt\n", 213 fdc->sc_dev.dv_xname); 214 215 /* physical limit: four drives per controller. */ 216 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 217 if (fa.fa_drive < 2) 218 fa.fa_deftype = &fd_types[0]; 219 else 220 fa.fa_deftype = NULL; /* unknown */ 221 (void)config_found(self, (void *)&fa, fdprint); 222 } 223 } 224
Indexes created Thu Oct 02 01:09:59 GMT 2025