mediabay.c revision 1.8
1 /* $NetBSD: mediabay.c,v 1.8 2003/04/02 03:04:02 thorpej 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/param.h> 30 #include <sys/device.h> 31 #include <sys/kernel.h> 32 #include <sys/kthread.h> 33 #include <sys/systm.h> 34 35 #include <uvm/uvm_extern.h> 36 37 #include <dev/ofw/openfirm.h> 38 39 #include <machine/autoconf.h> 40 #include <machine/pio.h> 41 42 struct mediabay_softc { 43 struct device sc_dev; 44 int sc_node; 45 u_int *sc_addr; 46 u_int *sc_fcr; 47 u_int sc_baseaddr; 48 struct device *sc_content; 49 struct proc *sc_kthread; 50 }; 51 52 void mediabay_attach __P((struct device *, struct device *, void *)); 53 int mediabay_match __P((struct device *, struct cfdata *, void *)); 54 int mediabay_print __P((void *, const char *)); 55 void mediabay_attach_content __P((struct mediabay_softc *)); 56 int mediabay_intr __P((void *)); 57 void mediabay_create_kthread __P((void *)); 58 void mediabay_kthread __P((void *)); 59 60 CFATTACH_DECL(mediabay, sizeof(struct mediabay_softc), 61 mediabay_match, mediabay_attach, NULL, NULL); 62 63 #ifdef MEDIABAY_DEBUG 64 # define DPRINTF printf 65 #else 66 # define DPRINTF while (0) printf 67 #endif 68 69 #define FCR_MEDIABAY_RESET 0x00000002 70 #define FCR_MEDIABAY_IDE_ENABLE 0x00000008 71 #define FCR_MEDIABAY_FD_ENABLE 0x00000010 72 #define FCR_MEDIABAY_ENABLE 0x00000080 73 #define FCR_MEDIABAY_CD_POWER 0x00800000 74 75 #define MEDIABAY_ID(x) (((x) >> 12) & 0xf) 76 #define MEDIABAY_ID_FD 0 77 #define MEDIABAY_ID_CD 3 78 #define MEDIABAY_ID_NONE 7 79 80 int 81 mediabay_match(parent, cf, aux) 82 struct device *parent; 83 struct cfdata *cf; 84 void *aux; 85 { 86 struct confargs *ca = aux; 87 88 if (strcmp(ca->ca_name, "media-bay") == 0) 89 return 1; 90 91 return 0; 92 } 93 94 /* 95 * Attach all the sub-devices we can find 96 */ 97 void 98 mediabay_attach(parent, self, aux) 99 struct device *parent, *self; 100 void *aux; 101 { 102 struct mediabay_softc *sc = (struct mediabay_softc *)self; 103 struct confargs *ca = aux; 104 int irq, type; 105 106 ca->ca_reg[0] += ca->ca_baseaddr; 107 108 sc->sc_addr = mapiodev(ca->ca_reg[0], PAGE_SIZE); 109 sc->sc_fcr = sc->sc_addr + 1; 110 sc->sc_node = ca->ca_node; 111 sc->sc_baseaddr = ca->ca_baseaddr; 112 irq = ca->ca_intr[0]; 113 type = IST_LEVEL; 114 115 if (ca->ca_nintr == 8 && ca->ca_intr[1] == 0) 116 type = IST_EDGE; 117 118 printf(" irq %d %s\n", irq, intr_typename(type)); 119 intr_establish(irq, type, IPL_BIO, mediabay_intr, sc); 120 121 kthread_create(mediabay_create_kthread, sc); 122 123 sc->sc_content = NULL; 124 125 if (MEDIABAY_ID(in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 126 mediabay_attach_content(sc); 127 } 128 129 void 130 mediabay_attach_content(sc) 131 struct mediabay_softc *sc; 132 { 133 int child; 134 u_int fcr; 135 struct device *content; 136 struct confargs ca; 137 u_int reg[20], intr[5]; 138 char name[32]; 139 140 fcr = in32rb(sc->sc_fcr); 141 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 142 out32rb(sc->sc_fcr, fcr); 143 delay(50000); 144 145 fcr &= ~FCR_MEDIABAY_RESET; 146 out32rb(sc->sc_fcr, fcr); 147 delay(50000); 148 149 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 150 out32rb(sc->sc_fcr, fcr); 151 delay(50000); 152 153 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 154 memset(name, 0, sizeof(name)); 155 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 156 continue; 157 ca.ca_name = name; 158 ca.ca_node = child; 159 ca.ca_baseaddr = sc->sc_baseaddr; 160 161 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 162 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 163 sizeof(intr)); 164 if (ca.ca_nintr == -1) 165 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 166 sizeof(intr)); 167 ca.ca_reg = reg; 168 ca.ca_intr = intr; 169 170 content = config_found(&sc->sc_dev, &ca, mediabay_print); 171 if (content) { 172 sc->sc_content = content; 173 return; 174 } 175 } 176 177 /* No devices found. Disable media-bay. */ 178 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 179 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 180 out32rb(sc->sc_fcr, fcr); 181 } 182 183 int 184 mediabay_print(aux, mediabay) 185 void *aux; 186 const char *mediabay; 187 { 188 struct confargs *ca = aux; 189 190 if (mediabay == NULL && ca->ca_nreg > 0) 191 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 192 193 return QUIET; 194 } 195 196 int 197 mediabay_intr(v) 198 void *v; 199 { 200 struct mediabay_softc *sc = v; 201 202 wakeup(&sc->sc_kthread); 203 return 1; 204 } 205 206 void 207 mediabay_create_kthread(v) 208 void *v; 209 { 210 struct mediabay_softc *sc = v; 211 212 kthread_create1(mediabay_kthread, sc, &sc->sc_kthread, "media-bay"); 213 } 214 215 void 216 mediabay_kthread(v) 217 void *v; 218 { 219 struct mediabay_softc *sc = v; 220 u_int x, fcr; 221 222 sleep: 223 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 224 225 /* sleep 0.25 sec */ 226 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 227 228 DPRINTF("%s: ", sc->sc_dev.dv_xname); 229 x = in32rb(sc->sc_addr); 230 231 switch (MEDIABAY_ID(x)) { 232 case MEDIABAY_ID_NONE: 233 DPRINTF("removed\n"); 234 if (sc->sc_content != NULL) { 235 config_detach(sc->sc_content, DETACH_FORCE); 236 DPRINTF("%s: detach done\n", sc->sc_dev.dv_xname); 237 sc->sc_content = NULL; 238 239 /* disable media-bay */ 240 fcr = in32rb(sc->sc_fcr); 241 fcr &= ~(FCR_MEDIABAY_ENABLE | 242 FCR_MEDIABAY_IDE_ENABLE | 243 FCR_MEDIABAY_CD_POWER | 244 FCR_MEDIABAY_FD_ENABLE); 245 out32rb(sc->sc_fcr, fcr); 246 } 247 break; 248 case MEDIABAY_ID_FD: 249 DPRINTF("FD inserted\n"); 250 break; 251 case MEDIABAY_ID_CD: 252 DPRINTF("CD inserted\n"); 253 254 if (sc->sc_content == NULL) 255 mediabay_attach_content(sc); 256 break; 257 default: 258 printf("unknown event (0x%x)\n", x); 259 } 260 261 goto sleep; 262 } 263 264 /* PBG3: 0x7025X0c0 */ 265 /* 2400: 0x0070X0a8 */ 266
Indexes created Mon Sep 29 03:10:08 GMT 2025