mediabay.c revision 1.9
1 /* $NetBSD: mediabay.c,v 1.9 2003/07/15 02:43:29 lukem 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 1.9 2003/07/15 02:43:29 lukem 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, type; 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 type = IST_LEVEL; 117 118 if (ca->ca_nintr == 8 && ca->ca_intr[1] == 0) 119 type = IST_EDGE; 120 121 printf(" irq %d %s\n", irq, intr_typename(type)); 122 intr_establish(irq, type, IPL_BIO, mediabay_intr, sc); 123 124 kthread_create(mediabay_create_kthread, sc); 125 126 sc->sc_content = NULL; 127 128 if (MEDIABAY_ID(in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 129 mediabay_attach_content(sc); 130 } 131 132 void 133 mediabay_attach_content(sc) 134 struct mediabay_softc *sc; 135 { 136 int child; 137 u_int fcr; 138 struct device *content; 139 struct confargs ca; 140 u_int reg[20], intr[5]; 141 char name[32]; 142 143 fcr = in32rb(sc->sc_fcr); 144 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 145 out32rb(sc->sc_fcr, fcr); 146 delay(50000); 147 148 fcr &= ~FCR_MEDIABAY_RESET; 149 out32rb(sc->sc_fcr, fcr); 150 delay(50000); 151 152 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 153 out32rb(sc->sc_fcr, fcr); 154 delay(50000); 155 156 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 157 memset(name, 0, sizeof(name)); 158 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 159 continue; 160 ca.ca_name = name; 161 ca.ca_node = child; 162 ca.ca_baseaddr = sc->sc_baseaddr; 163 164 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 165 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 166 sizeof(intr)); 167 if (ca.ca_nintr == -1) 168 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 169 sizeof(intr)); 170 ca.ca_reg = reg; 171 ca.ca_intr = intr; 172 173 content = config_found(&sc->sc_dev, &ca, mediabay_print); 174 if (content) { 175 sc->sc_content = content; 176 return; 177 } 178 } 179 180 /* No devices found. Disable media-bay. */ 181 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 182 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 183 out32rb(sc->sc_fcr, fcr); 184 } 185 186 int 187 mediabay_print(aux, mediabay) 188 void *aux; 189 const char *mediabay; 190 { 191 struct confargs *ca = aux; 192 193 if (mediabay == NULL && ca->ca_nreg > 0) 194 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 195 196 return QUIET; 197 } 198 199 int 200 mediabay_intr(v) 201 void *v; 202 { 203 struct mediabay_softc *sc = v; 204 205 wakeup(&sc->sc_kthread); 206 return 1; 207 } 208 209 void 210 mediabay_create_kthread(v) 211 void *v; 212 { 213 struct mediabay_softc *sc = v; 214 215 kthread_create1(mediabay_kthread, sc, &sc->sc_kthread, "media-bay"); 216 } 217 218 void 219 mediabay_kthread(v) 220 void *v; 221 { 222 struct mediabay_softc *sc = v; 223 u_int x, fcr; 224 225 sleep: 226 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 227 228 /* sleep 0.25 sec */ 229 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 230 231 DPRINTF("%s: ", sc->sc_dev.dv_xname); 232 x = in32rb(sc->sc_addr); 233 234 switch (MEDIABAY_ID(x)) { 235 case MEDIABAY_ID_NONE: 236 DPRINTF("removed\n"); 237 if (sc->sc_content != NULL) { 238 config_detach(sc->sc_content, DETACH_FORCE); 239 DPRINTF("%s: detach done\n", sc->sc_dev.dv_xname); 240 sc->sc_content = NULL; 241 242 /* disable media-bay */ 243 fcr = in32rb(sc->sc_fcr); 244 fcr &= ~(FCR_MEDIABAY_ENABLE | 245 FCR_MEDIABAY_IDE_ENABLE | 246 FCR_MEDIABAY_CD_POWER | 247 FCR_MEDIABAY_FD_ENABLE); 248 out32rb(sc->sc_fcr, fcr); 249 } 250 break; 251 case MEDIABAY_ID_FD: 252 DPRINTF("FD inserted\n"); 253 break; 254 case MEDIABAY_ID_CD: 255 DPRINTF("CD inserted\n"); 256 257 if (sc->sc_content == NULL) 258 mediabay_attach_content(sc); 259 break; 260 default: 261 printf("unknown event (0x%x)\n", x); 262 } 263 264 goto sleep; 265 } 266 267 /* PBG3: 0x7025X0c0 */ 268 /* 2400: 0x0070X0a8 */ 269
Indexes created Sun Sep 28 07:09:56 GMT 2025