mediabay.c revision 1.15
1 /* $NetBSD: mediabay.c,v 1.15 2008/08/28 04:05:50 jmcneill 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 1.15 2008/08/28 04:05:50 jmcneill 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 enum mediabay_controller { 46 MB_CONTROLLER_KEYLARGO, 47 MB_CONTROLLER_OTHER 48 }; 49 50 struct mediabay_softc { 51 struct device sc_dev; 52 bus_space_tag_t sc_tag; 53 int sc_node; 54 u_int *sc_addr; 55 u_int *sc_fcr; 56 u_int sc_baseaddr; 57 struct device *sc_content; 58 lwp_t *sc_kthread; 59 enum mediabay_controller sc_type; 60 }; 61 62 static const char *mediabay_keylargo[] = { 63 "keylargo-media-bay", 64 NULL 65 }; 66 67 void mediabay_attach __P((struct device *, struct device *, void *)); 68 int mediabay_match __P((struct device *, struct cfdata *, void *)); 69 int mediabay_print __P((void *, const char *)); 70 void mediabay_attach_content __P((struct mediabay_softc *)); 71 int mediabay_intr __P((void *)); 72 void mediabay_kthread __P((void *)); 73 74 CFATTACH_DECL(mediabay, sizeof(struct mediabay_softc), 75 mediabay_match, mediabay_attach, NULL, NULL); 76 77 #ifdef MEDIABAY_DEBUG 78 # define DPRINTF printf 79 #else 80 # define DPRINTF while (0) printf 81 #endif 82 83 #define FCR_MEDIABAY_RESET 0x00000002 84 #define FCR_MEDIABAY_IDE_ENABLE 0x00000008 85 #define FCR_MEDIABAY_FD_ENABLE 0x00000010 86 #define FCR_MEDIABAY_ENABLE 0x00000080 87 #define FCR_MEDIABAY_CD_POWER 0x00800000 88 89 #define MBCR_MEDIABAY0_ENABLE 0x00000100 90 #define MBCR_MEDIABAY0_RESET 0x00000200 91 #define MBCR_MEDIABAY0_POWER 0x00000400 92 #define MBCR_MEDIABAY0_IDE_ENABLE 0x00001000 93 #define MBCR_MEDIABAY0_DEVMASK 0x00007800 94 95 #define FCR1_EIDE0_ENABLE 0x00800000 96 #define FCR1_EIDE0_RESET 0x01000000 97 98 #define MEDIABAY_ID(sc, x) \ 99 ((sc)->sc_type == MB_CONTROLLER_KEYLARGO ? \ 100 (((x) >> 4) & 0xf) : \ 101 (((x) >> 12) & 0xf)) 102 #define MEDIABAY_ID_FD 0 103 #define MEDIABAY_ID_CD 3 104 #define MEDIABAY_ID_NONE 7 105 106 int 107 mediabay_match(parent, cf, aux) 108 struct device *parent; 109 struct cfdata *cf; 110 void *aux; 111 { 112 struct confargs *ca = aux; 113 114 if (strcmp(ca->ca_name, "media-bay") == 0) 115 return 1; 116 117 return 0; 118 } 119 120 /* 121 * Attach all the sub-devices we can find 122 */ 123 void 124 mediabay_attach(parent, self, aux) 125 struct device *parent, *self; 126 void *aux; 127 { 128 struct mediabay_softc *sc = (struct mediabay_softc *)self; 129 struct confargs *ca = aux; 130 int irq, itype; 131 132 ca->ca_reg[0] += ca->ca_baseaddr; 133 134 sc->sc_addr = mapiodev(ca->ca_reg[0], PAGE_SIZE); 135 sc->sc_node = ca->ca_node; 136 sc->sc_baseaddr = ca->ca_baseaddr; 137 sc->sc_tag = ca->ca_tag; 138 irq = ca->ca_intr[0]; 139 itype = IST_EDGE; 140 141 if (of_compatible(ca->ca_node, mediabay_keylargo) != -1) { 142 sc->sc_type = MB_CONTROLLER_KEYLARGO; 143 sc->sc_fcr = sc->sc_addr + 2; 144 } else { 145 sc->sc_type = MB_CONTROLLER_OTHER; 146 sc->sc_fcr = sc->sc_addr + 1; 147 } 148 149 if (ca->ca_nintr == 8 && ca->ca_intr[1] != 0) 150 itype = IST_LEVEL; 151 152 printf(" irq %d %s\n", irq, intr_typename(itype)); 153 154 intr_establish(irq, itype, IPL_BIO, mediabay_intr, sc); 155 156 sc->sc_content = NULL; 157 158 if (MEDIABAY_ID(sc, in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 159 mediabay_attach_content(sc); 160 161 kthread_create(PRI_NONE, 0, NULL, mediabay_kthread, sc, 162 &sc->sc_kthread, "media-bay"); 163 } 164 165 void 166 mediabay_attach_content(sc) 167 struct mediabay_softc *sc; 168 { 169 int child; 170 u_int fcr = 0; 171 struct device *content; 172 struct confargs ca; 173 u_int reg[20], intr[5]; 174 char name[32]; 175 176 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 177 fcr = in32rb(sc->sc_fcr); 178 179 /* 180 * if the mediabay isn't powered up we need to wait a few seconds 181 * before probing devices 182 */ 183 if ((fcr & (FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE 184 | FCR_MEDIABAY_CD_POWER)) != (FCR_MEDIABAY_ENABLE 185 | FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER)) { 186 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 187 out32rb(sc->sc_fcr, fcr); 188 delay(50000); 189 190 fcr &= ~FCR_MEDIABAY_RESET; 191 out32rb(sc->sc_fcr, fcr); 192 delay(50000); 193 194 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 195 out32rb(sc->sc_fcr, fcr); 196 delay(50000); 197 printf("%s: powering up...\n", sc->sc_dev.dv_xname); 198 delay(2000000); 199 } 200 } else { 201 printf("%s: powering up keylargo-media-bay..", sc->sc_dev.dv_xname); 202 203 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_RESET); 204 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_POWER); 205 delay(50000); 206 207 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_ENABLE); 208 delay(50000); 209 210 out32rb(sc->sc_addr, 211 in32rb(sc->sc_addr) | MBCR_MEDIABAY0_IDE_ENABLE); 212 delay(50000); 213 214 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_RESET); 215 delay(50000); 216 217 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_RESET); 218 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_ENABLE); 219 delay(50000); 220 221 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_ENABLE); 222 __asm volatile ("eieio"); 223 delay(50000); 224 225 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~0xf); 226 __asm volatile ("eieio"); 227 delay(50000); 228 229 tsleep(sc, PRI_NONE, "mediabay", hz*1); 230 231 printf(" done.\n"); 232 } 233 234 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 235 memset(name, 0, sizeof(name)); 236 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 237 continue; 238 ca.ca_name = name; 239 ca.ca_node = child; 240 ca.ca_baseaddr = sc->sc_baseaddr; 241 ca.ca_tag = sc->sc_tag; 242 243 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 244 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 245 sizeof(intr)); 246 if (ca.ca_nintr == -1) 247 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 248 sizeof(intr)); 249 ca.ca_reg = reg; 250 ca.ca_intr = intr; 251 252 content = config_found(&sc->sc_dev, &ca, mediabay_print); 253 if (content) { 254 sc->sc_content = content; 255 return; 256 } 257 } 258 259 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 260 /* No devices found. Disable media-bay. */ 261 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 262 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 263 out32rb(sc->sc_fcr, fcr); 264 } 265 } 266 267 int 268 mediabay_print(aux, mediabay) 269 void *aux; 270 const char *mediabay; 271 { 272 struct confargs *ca = aux; 273 274 if (mediabay == NULL && ca->ca_nreg > 0) 275 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 276 277 return QUIET; 278 } 279 280 int 281 mediabay_intr(v) 282 void *v; 283 { 284 struct mediabay_softc *sc = v; 285 286 wakeup(&sc->sc_kthread); 287 288 return 1; 289 } 290 291 void 292 mediabay_kthread(v) 293 void *v; 294 { 295 struct mediabay_softc *sc = v; 296 u_int x, fcr; 297 298 for (;;) { 299 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 300 301 /* sleep 0.25 sec */ 302 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 303 304 DPRINTF("%s: ", sc->sc_dev.dv_xname); 305 x = in32rb(sc->sc_addr); 306 307 switch (MEDIABAY_ID(sc, x)) { 308 case MEDIABAY_ID_NONE: 309 DPRINTF("removed\n"); 310 if (sc->sc_content != NULL) { 311 config_detach(sc->sc_content, DETACH_FORCE); 312 DPRINTF("%s: detach done\n", 313 sc->sc_dev.dv_xname); 314 sc->sc_content = NULL; 315 316 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 317 /* disable media-bay */ 318 fcr = in32rb(sc->sc_fcr); 319 fcr &= ~(FCR_MEDIABAY_ENABLE | 320 FCR_MEDIABAY_IDE_ENABLE | 321 FCR_MEDIABAY_CD_POWER | 322 FCR_MEDIABAY_FD_ENABLE); 323 out32rb(sc->sc_fcr, fcr); 324 } 325 } 326 break; 327 case MEDIABAY_ID_FD: 328 DPRINTF("FD inserted\n"); 329 break; 330 case MEDIABAY_ID_CD: 331 DPRINTF("CD inserted\n"); 332 333 if (sc->sc_content == NULL) 334 mediabay_attach_content(sc); 335 break; 336 default: 337 printf("unknown event (0x%x)\n", x); 338 } 339 } 340 } 341 342 /* PBG3: 0x7025X0c0 */ 343 /* 3400: 0x7070X080 */ 344 /* 2400: 0x0070X0a8 */ 345
Indexes created Tue Sep 30 06:09:59 GMT 2025