mediabay.c revision 1.10
1 /* $NetBSD: mediabay.c,v 1.10 2005/01/08 04:24:05 briggs Exp $ */ 2 3 /*- 4 * Copyright (C) 1999 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: mediabay.c,v 1.10 2005/01/08 04:24:05 briggs Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/kernel.h> 35 #include <sys/kthread.h> 36 #include <sys/systm.h> 37 38 #include <uvm/uvm_extern.h> 39 40 #include <dev/ofw/openfirm.h> 41 42 #include <machine/autoconf.h> 43 #include <machine/pio.h> 44 45 struct mediabay_softc { 46 struct device sc_dev; 47 int sc_node; 48 u_int *sc_addr; 49 u_int *sc_fcr; 50 u_int sc_baseaddr; 51 struct device *sc_content; 52 struct proc *sc_kthread; 53 }; 54 55 void mediabay_attach __P((struct device *, struct device *, void *)); 56 int mediabay_match __P((struct device *, struct cfdata *, void *)); 57 int mediabay_print __P((void *, const char *)); 58 void mediabay_attach_content __P((struct mediabay_softc *)); 59 int mediabay_intr __P((void *)); 60 void mediabay_create_kthread __P((void *)); 61 void mediabay_kthread __P((void *)); 62 63 CFATTACH_DECL(mediabay, sizeof(struct mediabay_softc), 64 mediabay_match, mediabay_attach, NULL, NULL); 65 66 #ifdef MEDIABAY_DEBUG 67 # define DPRINTF printf 68 #else 69 # define DPRINTF while (0) printf 70 #endif 71 72 #define FCR_MEDIABAY_RESET 0x00000002 73 #define FCR_MEDIABAY_IDE_ENABLE 0x00000008 74 #define FCR_MEDIABAY_FD_ENABLE 0x00000010 75 #define FCR_MEDIABAY_ENABLE 0x00000080 76 #define FCR_MEDIABAY_CD_POWER 0x00800000 77 78 #define MEDIABAY_ID(x) (((x) >> 12) & 0xf) 79 #define MEDIABAY_ID_FD 0 80 #define MEDIABAY_ID_CD 3 81 #define MEDIABAY_ID_NONE 7 82 83 int 84 mediabay_match(parent, cf, aux) 85 struct device *parent; 86 struct cfdata *cf; 87 void *aux; 88 { 89 struct confargs *ca = aux; 90 91 if (strcmp(ca->ca_name, "media-bay") == 0) 92 return 1; 93 94 return 0; 95 } 96 97 /* 98 * Attach all the sub-devices we can find 99 */ 100 void 101 mediabay_attach(parent, self, aux) 102 struct device *parent, *self; 103 void *aux; 104 { 105 struct mediabay_softc *sc = (struct mediabay_softc *)self; 106 struct confargs *ca = aux; 107 int irq, itype; 108 109 ca->ca_reg[0] += ca->ca_baseaddr; 110 111 sc->sc_addr = mapiodev(ca->ca_reg[0], PAGE_SIZE); 112 sc->sc_fcr = sc->sc_addr + 1; 113 sc->sc_node = ca->ca_node; 114 sc->sc_baseaddr = ca->ca_baseaddr; 115 irq = ca->ca_intr[0]; 116 itype = IST_LEVEL; 117 118 if (ca->ca_nintr == 8 && ca->ca_intr[1] == 0) 119 itype = IST_EDGE; 120 121 printf(" irq %d %s\n", irq, intr_typename(itype)); 122 123 intr_establish(irq, itype, IPL_BIO, mediabay_intr, sc); 124 125 kthread_create(mediabay_create_kthread, sc); 126 127 sc->sc_content = NULL; 128 129 if (MEDIABAY_ID(in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 130 mediabay_attach_content(sc); 131 } 132 133 void 134 mediabay_attach_content(sc) 135 struct mediabay_softc *sc; 136 { 137 int child; 138 u_int fcr; 139 struct device *content; 140 struct confargs ca; 141 u_int reg[20], intr[5]; 142 char name[32]; 143 144 fcr = in32rb(sc->sc_fcr); 145 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 146 out32rb(sc->sc_fcr, fcr); 147 delay(50000); 148 149 fcr &= ~FCR_MEDIABAY_RESET; 150 out32rb(sc->sc_fcr, fcr); 151 delay(50000); 152 153 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 154 out32rb(sc->sc_fcr, fcr); 155 delay(50000); 156 157 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 158 memset(name, 0, sizeof(name)); 159 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 160 continue; 161 ca.ca_name = name; 162 ca.ca_node = child; 163 ca.ca_baseaddr = sc->sc_baseaddr; 164 165 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 166 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 167 sizeof(intr)); 168 if (ca.ca_nintr == -1) 169 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 170 sizeof(intr)); 171 ca.ca_reg = reg; 172 ca.ca_intr = intr; 173 174 content = config_found(&sc->sc_dev, &ca, mediabay_print); 175 if (content) { 176 sc->sc_content = content; 177 return; 178 } 179 } 180 181 /* No devices found. Disable media-bay. */ 182 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 183 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 184 out32rb(sc->sc_fcr, fcr); 185 } 186 187 int 188 mediabay_print(aux, mediabay) 189 void *aux; 190 const char *mediabay; 191 { 192 struct confargs *ca = aux; 193 194 if (mediabay == NULL && ca->ca_nreg > 0) 195 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 196 197 return QUIET; 198 } 199 200 int 201 mediabay_intr(v) 202 void *v; 203 { 204 struct mediabay_softc *sc = v; 205 206 wakeup(&sc->sc_kthread); 207 208 return 1; 209 } 210 211 void 212 mediabay_create_kthread(v) 213 void *v; 214 { 215 struct mediabay_softc *sc = v; 216 217 kthread_create1(mediabay_kthread, sc, &sc->sc_kthread, "media-bay"); 218 } 219 220 void 221 mediabay_kthread(v) 222 void *v; 223 { 224 struct mediabay_softc *sc = v; 225 u_int x, fcr; 226 227 for (;;) { 228 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 229 230 /* sleep 0.25 sec */ 231 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 232 233 DPRINTF("%s: ", sc->sc_dev.dv_xname); 234 x = in32rb(sc->sc_addr); 235 236 switch (MEDIABAY_ID(x)) { 237 case MEDIABAY_ID_NONE: 238 DPRINTF("removed\n"); 239 if (sc->sc_content != NULL) { 240 config_detach(sc->sc_content, DETACH_FORCE); 241 DPRINTF("%s: detach done\n", 242 sc->sc_dev.dv_xname); 243 sc->sc_content = NULL; 244 245 /* disable media-bay */ 246 fcr = in32rb(sc->sc_fcr); 247 fcr &= ~(FCR_MEDIABAY_ENABLE | 248 FCR_MEDIABAY_IDE_ENABLE | 249 FCR_MEDIABAY_CD_POWER | 250 FCR_MEDIABAY_FD_ENABLE); 251 out32rb(sc->sc_fcr, fcr); 252 } 253 break; 254 case MEDIABAY_ID_FD: 255 DPRINTF("FD inserted\n"); 256 break; 257 case MEDIABAY_ID_CD: 258 DPRINTF("CD inserted\n"); 259 260 if (sc->sc_content == NULL) 261 mediabay_attach_content(sc); 262 break; 263 default: 264 printf("unknown event (0x%x)\n", x); 265 } 266 } 267 } 268 269 /* PBG3: 0x7025X0c0 */ 270 /* 3400: 0x7070X080 */ 271 /* 2400: 0x0070X0a8 */ 272
Indexes created Mon Sep 29 21:09:56 GMT 2025