mediabay.c revision 1.20
1 /* $NetBSD: mediabay.c,v 1.20 2011/06/18 08:08:28 matt 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 1.20 2011/06/18 08:08:28 matt 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 <dev/ofw/openfirm.h> 39 40 #include <machine/autoconf.h> 41 #include <machine/pio.h> 42 43 enum mediabay_controller { 44 MB_CONTROLLER_KEYLARGO, 45 MB_CONTROLLER_OTHER 46 }; 47 48 struct mediabay_softc { 49 struct device sc_dev; 50 bus_space_tag_t sc_tag; 51 int sc_node; 52 u_int *sc_addr; 53 u_int *sc_fcr; 54 u_int sc_baseaddr; 55 device_t sc_content; 56 lwp_t *sc_kthread; 57 enum mediabay_controller sc_type; 58 }; 59 60 static const char *mediabay_keylargo[] = { 61 "keylargo-media-bay", 62 NULL 63 }; 64 65 void mediabay_attach(device_t, device_t, void *); 66 int mediabay_match(device_t, cfdata_t, void *); 67 int mediabay_print(void *, const char *); 68 void mediabay_attach_content(struct mediabay_softc *); 69 int mediabay_intr(void *); 70 void mediabay_kthread(void *); 71 72 CFATTACH_DECL(mediabay, sizeof(struct mediabay_softc), 73 mediabay_match, mediabay_attach, NULL, NULL); 74 75 #ifdef MEDIABAY_DEBUG 76 # define DPRINTF printf 77 #else 78 # define DPRINTF while (0) printf 79 #endif 80 81 #define FCR_MEDIABAY_RESET 0x00000002 82 #define FCR_MEDIABAY_IDE_ENABLE 0x00000008 83 #define FCR_MEDIABAY_FD_ENABLE 0x00000010 84 #define FCR_MEDIABAY_ENABLE 0x00000080 85 #define FCR_MEDIABAY_CD_POWER 0x00800000 86 87 #define MBCR_MEDIABAY0_ENABLE 0x00000100 88 #define MBCR_MEDIABAY0_RESET 0x00000200 89 #define MBCR_MEDIABAY0_POWER 0x00000400 90 #define MBCR_MEDIABAY0_IDE_ENABLE 0x00001000 91 #define MBCR_MEDIABAY0_DEVMASK 0x00007800 92 93 #define FCR1_EIDE0_ENABLE 0x00800000 94 #define FCR1_EIDE0_RESET 0x01000000 95 96 #define MEDIABAY_ID(sc, x) \ 97 ((sc)->sc_type == MB_CONTROLLER_KEYLARGO ? \ 98 (((x) >> 4) & 0xf) : \ 99 (((x) >> 12) & 0xf)) 100 #define MEDIABAY_ID_FD 0 101 #define MEDIABAY_ID_CD 3 102 #define MEDIABAY_ID_NONE 7 103 104 int 105 mediabay_match(device_t parent, cfdata_t cf, void *aux) 106 { 107 struct confargs *ca = aux; 108 109 if (strcmp(ca->ca_name, "media-bay") == 0) 110 return 1; 111 112 return 0; 113 } 114 115 /* 116 * Attach all the sub-devices we can find 117 */ 118 void 119 mediabay_attach(device_t parent, device_t self, void *aux) 120 { 121 struct mediabay_softc *sc = device_private(self); 122 struct confargs *ca = aux; 123 int irq, itype; 124 125 ca->ca_reg[0] += ca->ca_baseaddr; 126 127 sc->sc_addr = mapiodev(ca->ca_reg[0], PAGE_SIZE); 128 sc->sc_node = ca->ca_node; 129 sc->sc_baseaddr = ca->ca_baseaddr; 130 sc->sc_tag = ca->ca_tag; 131 irq = ca->ca_intr[0]; 132 itype = IST_EDGE; 133 134 if (of_compatible(ca->ca_node, mediabay_keylargo) != -1) { 135 sc->sc_type = MB_CONTROLLER_KEYLARGO; 136 sc->sc_fcr = sc->sc_addr + 2; 137 } else { 138 sc->sc_type = MB_CONTROLLER_OTHER; 139 sc->sc_fcr = sc->sc_addr + 1; 140 } 141 142 if (ca->ca_nintr == 8 && ca->ca_intr[1] != 0) 143 itype = IST_LEVEL; 144 145 printf(" irq %d %s\n", irq, intr_typename(itype)); 146 147 intr_establish(irq, itype, IPL_BIO, mediabay_intr, sc); 148 149 sc->sc_content = NULL; 150 151 if (MEDIABAY_ID(sc, in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 152 mediabay_attach_content(sc); 153 154 kthread_create(PRI_NONE, 0, NULL, mediabay_kthread, sc, 155 &sc->sc_kthread, "media-bay"); 156 } 157 158 void 159 mediabay_attach_content(struct mediabay_softc *sc) 160 { 161 int child; 162 u_int fcr = 0; 163 device_t content; 164 struct confargs ca; 165 u_int reg[20], intr[5]; 166 char name[32]; 167 168 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 169 fcr = in32rb(sc->sc_fcr); 170 171 /* 172 * if the mediabay isn't powered up we need to wait a few seconds 173 * before probing devices 174 */ 175 if ((fcr & (FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE 176 | FCR_MEDIABAY_CD_POWER)) != (FCR_MEDIABAY_ENABLE 177 | FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER)) { 178 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 179 out32rb(sc->sc_fcr, fcr); 180 delay(50000); 181 182 fcr &= ~FCR_MEDIABAY_RESET; 183 out32rb(sc->sc_fcr, fcr); 184 delay(50000); 185 186 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 187 out32rb(sc->sc_fcr, fcr); 188 delay(50000); 189 printf("%s: powering up...\n", sc->sc_dev.dv_xname); 190 delay(2000000); 191 } 192 } else { 193 printf("%s: powering up keylargo-media-bay..", sc->sc_dev.dv_xname); 194 195 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_RESET); 196 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_POWER); 197 delay(50000); 198 199 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_ENABLE); 200 delay(50000); 201 202 out32rb(sc->sc_addr, 203 in32rb(sc->sc_addr) | MBCR_MEDIABAY0_IDE_ENABLE); 204 delay(50000); 205 206 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_RESET); 207 delay(50000); 208 209 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_RESET); 210 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_ENABLE); 211 delay(50000); 212 213 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_ENABLE); 214 __asm volatile ("eieio"); 215 delay(50000); 216 217 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~0xf); 218 __asm volatile ("eieio"); 219 delay(50000); 220 221 tsleep(sc, PRI_NONE, "mediabay", hz*1); 222 223 printf(" done.\n"); 224 } 225 226 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 227 memset(name, 0, sizeof(name)); 228 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 229 continue; 230 ca.ca_name = name; 231 ca.ca_node = child; 232 ca.ca_baseaddr = sc->sc_baseaddr; 233 ca.ca_tag = sc->sc_tag; 234 235 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 236 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 237 sizeof(intr)); 238 if (ca.ca_nintr == -1) 239 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 240 sizeof(intr)); 241 ca.ca_reg = reg; 242 ca.ca_intr = intr; 243 244 content = config_found(&sc->sc_dev, &ca, mediabay_print); 245 if (content) { 246 sc->sc_content = content; 247 return; 248 } 249 } 250 251 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 252 /* No devices found. Disable media-bay. */ 253 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 254 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 255 out32rb(sc->sc_fcr, fcr); 256 } 257 } 258 259 int 260 mediabay_print(void *aux, const char *mediabay) 261 { 262 struct confargs *ca = aux; 263 264 if (mediabay == NULL && ca->ca_nreg > 0) 265 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 266 267 return QUIET; 268 } 269 270 int 271 mediabay_intr(void *v) 272 { 273 struct mediabay_softc *sc = v; 274 275 wakeup(&sc->sc_kthread); 276 277 return 1; 278 } 279 280 void 281 mediabay_kthread(void *v) 282 { 283 struct mediabay_softc *sc = v; 284 u_int x, fcr; 285 286 for (;;) { 287 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 288 289 /* sleep 0.25 sec */ 290 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 291 292 DPRINTF("%s: ", sc->sc_dev.dv_xname); 293 x = in32rb(sc->sc_addr); 294 295 switch (MEDIABAY_ID(sc, x)) { 296 case MEDIABAY_ID_NONE: 297 DPRINTF("removed\n"); 298 if (sc->sc_content != NULL) { 299 config_detach(sc->sc_content, DETACH_FORCE); 300 DPRINTF("%s: detach done\n", 301 sc->sc_dev.dv_xname); 302 sc->sc_content = NULL; 303 304 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 305 /* disable media-bay */ 306 fcr = in32rb(sc->sc_fcr); 307 fcr &= ~(FCR_MEDIABAY_ENABLE | 308 FCR_MEDIABAY_IDE_ENABLE | 309 FCR_MEDIABAY_CD_POWER | 310 FCR_MEDIABAY_FD_ENABLE); 311 out32rb(sc->sc_fcr, fcr); 312 } 313 } 314 break; 315 case MEDIABAY_ID_FD: 316 DPRINTF("FD inserted\n"); 317 break; 318 case MEDIABAY_ID_CD: 319 DPRINTF("CD inserted\n"); 320 321 if (sc->sc_content == NULL) 322 mediabay_attach_content(sc); 323 break; 324 default: 325 printf("unknown event (0x%x)\n", x); 326 } 327 } 328 } 329 330 /* PBG3: 0x7025X0c0 */ 331 /* 3400: 0x7070X080 */ 332 /* 2400: 0x0070X0a8 */ 333
Indexes created Mon Sep 29 21:09:56 GMT 2025