1 /* $NetBSD: fdc_pcmcia.c,v 1.10 2002/10/02 16:52:07 thorpej 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 1.10 2002/10/02 16:52:07 thorpej 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 CFATTACH_DECL(fdc_pcmcia, sizeof(struct fdc_pcmcia_softc), 73 fdc_pcmcia_probe, fdc_pcmcia_attach, NULL, NULL); 74 75 static void 76 fdc_conf(fdc) 77 struct fdc_softc *fdc; 78 { 79 bus_space_tag_t iot = fdc->sc_iot; 80 bus_space_handle_t ioh = fdc->sc_ioh; 81 int n; 82 83 /* Figure out what we have */ 84 if (out_fdc_cmd(iot, ioh, FDC_CMD_VERSION) == -1 || 85 (n = fdcresult(fdc, 1)) != 1) 86 return; 87 88 /* Nec765 or equivalent */ 89 if (FDC_ST0(fdc->sc_status[0]) == FDC_ST0_INVL) 90 return; 91 92 #if 0 93 /* ns8477 check */ 94 if (out_fdc_cmd(iot, ioh, FDC_CMD_NSC) == -1 || 95 (n = fdcresult(fdc, 1)) != 1) { 96 printf("NSC command failed\n"); 97 return; 98 } 99 else 100 printf("Version %x\n", fdc->sc_status[0]); 101 #endif 102 103 if (out_fdc_cmd(iot, ioh, FDC_CMD_DUMPREG) == -1 || 104 (n = fdcresult(fdc, -1)) == -1) 105 return; 106 107 /* 108 * Expect 10 bytes of status; one means that it did not 109 * understand the command 110 */ 111 if (n == 1) 112 return; 113 114 /* 115 * Configure controller to use FIFO and 8 bytes of FIFO threshold 116 */ 117 (void)out_fdc_cmd(iot, ioh, FDC_CMD_CONFIGURE); 118 (void)out_fdc(iot, ioh, 0x00); /* doc says 0 */ 119 (void)out_fdc(iot, ioh, 8); /* FIFO is active low. */ 120 (void)out_fdc(iot, ioh, fdc->sc_status[9]); /* same comp */ 121 /* No result phase */ 122 123 /* Lock this configuration */ 124 if (out_fdc_cmd(iot, ioh, FDC_CMD_LOCK(FDC_CMD_FLAGS_LOCK)) == -1 || 125 fdcresult(fdc, 1) != 1) 126 return; 127 } 128 129 int 130 fdc_pcmcia_probe(parent, match, aux) 131 struct device *parent; 132 struct cfdata *match; 133 void *aux; 134 { 135 struct pcmcia_attach_args *pa = aux; 136 struct pcmcia_card *card = pa->card; 137 char *cis[4] = PCMCIA_CIS_YEDATA_EXTERNAL_FDD; 138 139 /* For this card the manufacturer and product are -1 */ 140 if (strcmp(cis[0], card->cis1_info[0]) == 0 && 141 strcmp(cis[1], card->cis1_info[1]) == 0) 142 return 1; 143 144 return 0; 145 } 146 147 148 void 149 fdc_pcmcia_attach(parent, self, aux) 150 struct device *parent, *self; 151 void *aux; 152 { 153 struct fdc_pcmcia_softc *psc = (void *)self; 154 struct fdc_softc *fdc = &psc->sc_fdc; 155 struct pcmcia_attach_args *pa = aux; 156 struct pcmcia_config_entry *cfe; 157 struct pcmcia_function *pf = pa->pf; 158 struct fdc_attach_args fa; 159 160 psc->sc_pf = pf; 161 162 SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { 163 if (cfe->num_memspace != 0 || 164 cfe->num_iospace != 1) 165 continue; 166 167 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 168 cfe->iospace[0].length, cfe->iospace[0].length, 169 &psc->sc_pcioh) == 0) 170 break; 171 } 172 173 if (cfe == 0) { 174 printf(": can't alloc i/o space\n"); 175 return; 176 } 177 178 /* Enable the card. */ 179 pcmcia_function_init(pf, cfe); 180 if (pcmcia_function_enable(pf)) { 181 printf(": function enable failed\n"); 182 return; 183 } 184 185 /* Map in the io space */ 186 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size, 187 &psc->sc_pcioh, &psc->sc_io_window)) { 188 printf(": can't map i/o space\n"); 189 return; 190 } 191 192 fdc->sc_iot = psc->sc_pcioh.iot; 193 fdc->sc_ioh = psc->sc_pcioh.ioh; 194 195 fdc->sc_flags = FDC_HEADSETTLE; 196 fdc->sc_state = DEVIDLE; 197 TAILQ_INIT(&fdc->sc_drives); 198 199 if (!fdcfind(fdc->sc_iot, fdc->sc_ioh, 1)) 200 printf(": coundn't find fdc\n%s", fdc->sc_dev.dv_xname); 201 202 printf(": %s\n", PCMCIA_STR_YEDATA_EXTERNAL_FDD); 203 204 fdc_conf(fdc); 205 206 /* Establish the interrupt handler. */ 207 fdc->sc_ih = pcmcia_intr_establish(pa->pf, IPL_BIO, fdchwintr, fdc); 208 if (fdc->sc_ih == NULL) 209 printf("%s: couldn't establish interrupt\n", 210 fdc->sc_dev.dv_xname); 211 212 /* physical limit: four drives per controller. */ 213 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 214 if (fa.fa_drive < 2) 215 fa.fa_deftype = &fd_types[0]; 216 else 217 fa.fa_deftype = NULL; /* unknown */ 218 (void)config_found(self, (void *)&fa, fdprint); 219 } 220 } 221