1 /* $NetBSD: mediabay.c,v 1.28 2022/02/16 23:49:26 riastradh 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 1.28 2022/02/16 23:49:26 riastradh 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 device_t 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_NEW(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 sc->sc_dev = self; 126 ca->ca_reg[0] += ca->ca_baseaddr; 127 128 sc->sc_addr = mapiodev(ca->ca_reg[0], PAGE_SIZE, false); 129 sc->sc_node = ca->ca_node; 130 sc->sc_baseaddr = ca->ca_baseaddr; 131 sc->sc_tag = ca->ca_tag; 132 irq = ca->ca_intr[0]; 133 itype = IST_EDGE; 134 135 if (of_compatible(ca->ca_node, mediabay_keylargo)) { 136 sc->sc_type = MB_CONTROLLER_KEYLARGO; 137 sc->sc_fcr = sc->sc_addr + 2; 138 } else { 139 sc->sc_type = MB_CONTROLLER_OTHER; 140 sc->sc_fcr = sc->sc_addr + 1; 141 } 142 143 if (ca->ca_nintr == 8 && ca->ca_intr[1] != 0) 144 itype = IST_LEVEL; 145 146 printf(" irq %d %s\n", irq, intr_typename(itype)); 147 148 intr_establish_xname(irq, itype, IPL_BIO, mediabay_intr, sc, 149 device_xname(self)); 150 151 sc->sc_content = NULL; 152 153 if (MEDIABAY_ID(sc, in32rb(sc->sc_addr)) != MEDIABAY_ID_NONE) 154 mediabay_attach_content(sc); 155 156 kthread_create(PRI_NONE, 0, NULL, mediabay_kthread, sc, 157 &sc->sc_kthread, "media-bay"); 158 } 159 160 void 161 mediabay_attach_content(struct mediabay_softc *sc) 162 { 163 int child; 164 u_int fcr = 0; 165 device_t content; 166 struct confargs ca; 167 u_int reg[20], intr[5]; 168 char name[32]; 169 170 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 171 fcr = in32rb(sc->sc_fcr); 172 173 /* 174 * if the mediabay isn't powered up we need to wait a few seconds 175 * before probing devices 176 */ 177 if ((fcr & (FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE 178 | FCR_MEDIABAY_CD_POWER)) != (FCR_MEDIABAY_ENABLE 179 | FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER)) { 180 fcr |= FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_RESET; 181 out32rb(sc->sc_fcr, fcr); 182 delay(50000); 183 184 fcr &= ~FCR_MEDIABAY_RESET; 185 out32rb(sc->sc_fcr, fcr); 186 delay(50000); 187 188 fcr |= FCR_MEDIABAY_IDE_ENABLE | FCR_MEDIABAY_CD_POWER; 189 out32rb(sc->sc_fcr, fcr); 190 delay(50000); 191 printf("%s: powering up...\n", device_xname(sc->sc_dev)); 192 delay(2000000); 193 } 194 } else { 195 printf("%s: powering up keylargo-media-bay..", device_xname(sc->sc_dev)); 196 197 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_RESET); 198 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_POWER); 199 delay(50000); 200 201 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~MBCR_MEDIABAY0_ENABLE); 202 delay(50000); 203 204 out32rb(sc->sc_addr, 205 in32rb(sc->sc_addr) | MBCR_MEDIABAY0_IDE_ENABLE); 206 delay(50000); 207 208 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_RESET); 209 delay(50000); 210 211 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_RESET); 212 out32rb(sc->sc_fcr, in32rb(sc->sc_fcr) | FCR1_EIDE0_ENABLE); 213 delay(50000); 214 215 out32rb(sc->sc_addr, in32rb(sc->sc_addr) | MBCR_MEDIABAY0_ENABLE); 216 __asm volatile("eieio" ::: "memory"); 217 delay(50000); 218 219 out32rb(sc->sc_addr, in32rb(sc->sc_addr) & ~0xf); 220 __asm volatile("eieio" ::: "memory"); 221 delay(50000); 222 223 tsleep(sc, PRI_NONE, "mediabay", hz*1); 224 225 printf(" done.\n"); 226 } 227 228 devhandle_t selfh = device_handle(sc->sc_dev); 229 for (child = OF_child(sc->sc_node); child; child = OF_peer(child)) { 230 memset(name, 0, sizeof(name)); 231 if (OF_getprop(child, "name", name, sizeof(name)) == -1) 232 continue; 233 ca.ca_name = name; 234 ca.ca_node = child; 235 ca.ca_baseaddr = sc->sc_baseaddr; 236 ca.ca_tag = sc->sc_tag; 237 238 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 239 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 240 sizeof(intr)); 241 if (ca.ca_nintr == -1) 242 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 243 sizeof(intr)); 244 ca.ca_reg = reg; 245 ca.ca_intr = intr; 246 247 content = config_found(sc->sc_dev, &ca, mediabay_print, 248 CFARGS(.devhandle = devhandle_from_of(selfh, child))); 249 if (content) { 250 sc->sc_content = content; 251 return; 252 } 253 } 254 255 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 256 /* No devices found. Disable media-bay. */ 257 fcr &= ~(FCR_MEDIABAY_ENABLE | FCR_MEDIABAY_IDE_ENABLE | 258 FCR_MEDIABAY_CD_POWER | FCR_MEDIABAY_FD_ENABLE); 259 out32rb(sc->sc_fcr, fcr); 260 } 261 } 262 263 int 264 mediabay_print(void *aux, const char *mediabay) 265 { 266 struct confargs *ca = aux; 267 268 if (mediabay == NULL && ca->ca_nreg > 0) 269 aprint_normal(" offset 0x%x", ca->ca_reg[0]); 270 271 return QUIET; 272 } 273 274 int 275 mediabay_intr(void *v) 276 { 277 struct mediabay_softc *sc = v; 278 279 wakeup(&sc->sc_kthread); 280 281 return 1; 282 } 283 284 void 285 mediabay_kthread(void *v) 286 { 287 struct mediabay_softc *sc = v; 288 u_int x, fcr; 289 290 for (;;) { 291 tsleep(&sc->sc_kthread, PRIBIO, "mbayev", 0); 292 293 /* sleep 0.25 sec */ 294 tsleep(mediabay_kthread, PRIBIO, "mbayev", hz/4); 295 296 DPRINTF("%s: ", device_xname(sc->sc_dev)); 297 x = in32rb(sc->sc_addr); 298 299 switch (MEDIABAY_ID(sc, x)) { 300 case MEDIABAY_ID_NONE: 301 DPRINTF("removed\n"); 302 if (sc->sc_content != NULL) { 303 config_detach(sc->sc_content, DETACH_FORCE); 304 DPRINTF("%s: detach done\n", 305 device_xname(sc->sc_dev)); 306 sc->sc_content = NULL; 307 308 if (sc->sc_type != MB_CONTROLLER_KEYLARGO) { 309 /* disable media-bay */ 310 fcr = in32rb(sc->sc_fcr); 311 fcr &= ~(FCR_MEDIABAY_ENABLE | 312 FCR_MEDIABAY_IDE_ENABLE | 313 FCR_MEDIABAY_CD_POWER | 314 FCR_MEDIABAY_FD_ENABLE); 315 out32rb(sc->sc_fcr, fcr); 316 } 317 } 318 break; 319 case MEDIABAY_ID_FD: 320 DPRINTF("FD inserted\n"); 321 break; 322 case MEDIABAY_ID_CD: 323 DPRINTF("CD inserted\n"); 324 325 if (sc->sc_content == NULL) 326 mediabay_attach_content(sc); 327 break; 328 default: 329 printf("unknown event (0x%x)\n", x); 330 } 331 } 332 } 333 334 /* PBG3: 0x7025X0c0 */ 335 /* 3400: 0x7070X080 */ 336 /* 2400: 0x0070X0a8 */ 337
Indexes created Sat Sep 20 22:09:52 GMT 2025