adb_direct.c revision 1.21.2.4
1 /* $NetBSD: adb_direct.c,v 1.21.2.4 1999/11/29 21:20:37 he Exp $ */ 2 3 /* From: adb_direct.c 2.02 4/18/97 jpw */ 4 5 /* 6 * Copyright (C) 1996, 1997 John P. Wittkoski 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by John P. Wittkoski. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * This code is rather messy, but I don't have time right now 37 * to clean it up as much as I would like. 38 * But it works, so I'm happy. :-) jpw 39 */ 40 41 /* 42 * TO DO: 43 * - We could reduce the time spent in the adb_intr_* routines 44 * by having them save the incoming and outgoing data directly 45 * in the adbInbound and adbOutbound queues, as it would reduce 46 * the number of times we need to copy the data around. It 47 * would also make the code more readable and easier to follow. 48 * - (Related to above) Use the header part of adbCommand to 49 * reduce the number of copies we have to do of the data. 50 * - (Related to above) Actually implement the adbOutbound queue. 51 * This is fairly easy once you switch all the intr routines 52 * over to using adbCommand structs directly. 53 * - There is a bug in the state machine of adb_intr_cuda 54 * code that causes hangs, especially on 030 machines, probably 55 * because of some timing issues. Because I have been unable to 56 * determine the exact cause of this bug, I used the timeout function 57 * to check for and recover from this condition. If anyone finds 58 * the actual cause of this bug, the calls to timeout and the 59 * adb_cuda_tickle routine can be removed. 60 */ 61 62 #ifdef __NetBSD__ 63 #include "opt_adb.h" 64 65 #include <sys/param.h> 66 #include <sys/cdefs.h> 67 #include <sys/systm.h> 68 69 #include <machine/viareg.h> 70 #include <machine/param.h> 71 #include <machine/cpu.h> 72 #include <machine/adbsys.h> /* required for adbvar.h */ 73 74 #include <mac68k/mac68k/macrom.h> 75 #include <mac68k/dev/adbvar.h> 76 #define printf_intr printf 77 #else /* !__NetBSD__, i.e. Mac OS */ 78 #include "via.h" /* for macos based testing */ 79 /* #define ADB_DEBUG */ /* more verbose for testing */ 80 81 /* Types of ADB hardware that we support */ 82 #define ADB_HW_UNKNOWN 0x0 /* don't know */ 83 #define ADB_HW_II 0x1 /* Mac II series */ 84 #define ADB_HW_IISI 0x2 /* Mac IIsi series */ 85 #define ADB_HW_PB 0x3 /* PowerBook series */ 86 #define ADB_HW_CUDA 0x4 /* Machines with a Cuda chip */ 87 #endif /* __NetBSD__ */ 88 89 /* some misc. leftovers */ 90 #define vPB 0x0000 91 #define vPB3 0x08 92 #define vPB4 0x10 93 #define vPB5 0x20 94 #define vSR_INT 0x04 95 #define vSR_OUT 0x10 96 97 /* the type of ADB action that we are currently preforming */ 98 #define ADB_ACTION_NOTREADY 0x1 /* has not been initialized yet */ 99 #define ADB_ACTION_IDLE 0x2 /* the bus is currently idle */ 100 #define ADB_ACTION_OUT 0x3 /* sending out a command */ 101 #define ADB_ACTION_IN 0x4 /* receiving data */ 102 #define ADB_ACTION_POLLING 0x5 /* polling - II only */ 103 104 /* 105 * These describe the state of the ADB bus itself, although they 106 * don't necessarily correspond directly to ADB states. 107 * Note: these are not really used in the IIsi code. 108 */ 109 #define ADB_BUS_UNKNOWN 0x1 /* we don't know yet - all models */ 110 #define ADB_BUS_IDLE 0x2 /* bus is idle - all models */ 111 #define ADB_BUS_CMD 0x3 /* starting a command - II models */ 112 #define ADB_BUS_ODD 0x4 /* the "odd" state - II models */ 113 #define ADB_BUS_EVEN 0x5 /* the "even" state - II models */ 114 #define ADB_BUS_ACTIVE 0x6 /* active state - IIsi models */ 115 #define ADB_BUS_ACK 0x7 /* currently ACKing - IIsi models */ 116 117 /* 118 * Shortcuts for setting or testing the VIA bit states. 119 * Not all shortcuts are used for every type of ADB hardware. 120 */ 121 #define ADB_SET_STATE_IDLE_II() via_reg(VIA1, vBufB) |= (vPB4 | vPB5) 122 #define ADB_SET_STATE_IDLE_IISI() via_reg(VIA1, vBufB) &= ~(vPB4 | vPB5) 123 #define ADB_SET_STATE_IDLE_CUDA() via_reg(VIA1, vBufB) |= (vPB4 | vPB5) 124 #define ADB_SET_STATE_CMD() via_reg(VIA1, vBufB) &= ~(vPB4 | vPB5) 125 #define ADB_SET_STATE_EVEN() via_reg(VIA1, vBufB) = ((via_reg(VIA1, \ 126 vBufB) | vPB4) & ~vPB5) 127 #define ADB_SET_STATE_ODD() via_reg(VIA1, vBufB) = ((via_reg(VIA1, \ 128 vBufB) | vPB5) & ~vPB4) 129 #define ADB_SET_STATE_ACTIVE() via_reg(VIA1, vBufB) |= vPB5 130 #define ADB_SET_STATE_INACTIVE() via_reg(VIA1, vBufB) &= ~vPB5 131 #define ADB_SET_STATE_TIP() via_reg(VIA1, vBufB) &= ~vPB5 132 #define ADB_CLR_STATE_TIP() via_reg(VIA1, vBufB) |= vPB5 133 #define ADB_SET_STATE_ACKON() via_reg(VIA1, vBufB) |= vPB4 134 #define ADB_SET_STATE_ACKOFF() via_reg(VIA1, vBufB) &= ~vPB4 135 #define ADB_TOGGLE_STATE_ACK_CUDA() via_reg(VIA1, vBufB) ^= vPB4 136 #define ADB_SET_STATE_ACKON_CUDA() via_reg(VIA1, vBufB) &= ~vPB4 137 #define ADB_SET_STATE_ACKOFF_CUDA() via_reg(VIA1, vBufB) |= vPB4 138 #define ADB_SET_SR_INPUT() via_reg(VIA1, vACR) &= ~vSR_OUT 139 #define ADB_SET_SR_OUTPUT() via_reg(VIA1, vACR) |= vSR_OUT 140 #define ADB_SR() via_reg(VIA1, vSR) 141 #define ADB_VIA_INTR_ENABLE() via_reg(VIA1, vIER) = 0x84 142 #define ADB_VIA_INTR_DISABLE() via_reg(VIA1, vIER) = 0x04 143 #define ADB_VIA_CLR_INTR() via_reg(VIA1, vIFR) = 0x04 144 #define ADB_INTR_IS_OFF (vPB3 == (via_reg(VIA1, vBufB) & vPB3)) 145 #define ADB_INTR_IS_ON (0 == (via_reg(VIA1, vBufB) & vPB3)) 146 #define ADB_SR_INTR_IS_OFF (0 == (via_reg(VIA1, vIFR) & vSR_INT)) 147 #define ADB_SR_INTR_IS_ON (vSR_INT == (via_reg(VIA1, \ 148 vIFR) & vSR_INT)) 149 150 /* 151 * This is the delay that is required (in uS) between certain 152 * ADB transactions. The actual timing delay for for each uS is 153 * calculated at boot time to account for differences in machine speed. 154 */ 155 #define ADB_DELAY 150 156 157 /* 158 * Maximum ADB message length; includes space for data, result, and 159 * device code - plus a little for safety. 160 */ 161 #define ADB_MAX_MSG_LENGTH 16 162 #define ADB_MAX_HDR_LENGTH 8 163 164 #define ADB_QUEUE 32 165 #define ADB_TICKLE_TICKS 4 166 167 /* 168 * A structure for storing information about each ADB device. 169 */ 170 struct ADBDevEntry { 171 void (*ServiceRtPtr) __P((void)); 172 void *DataAreaAddr; 173 int devType; 174 int origAddr; 175 int currentAddr; 176 }; 177 178 /* 179 * Used to hold ADB commands that are waiting to be sent out. 180 */ 181 struct adbCmdHoldEntry { 182 u_char outBuf[ADB_MAX_MSG_LENGTH]; /* our message */ 183 u_char *saveBuf; /* buffer to know where to save result */ 184 u_char *compRout; /* completion routine pointer */ 185 u_char *data; /* completion routine data pointer */ 186 }; 187 188 /* 189 * Eventually used for two separate queues, the queue between 190 * the upper and lower halves, and the outgoing packet queue. 191 * TO DO: adbCommand can replace all of adbCmdHoldEntry eventually 192 */ 193 struct adbCommand { 194 u_char header[ADB_MAX_HDR_LENGTH]; /* not used yet */ 195 u_char data[ADB_MAX_MSG_LENGTH]; /* packet data only */ 196 u_char *saveBuf; /* where to save result */ 197 u_char *compRout; /* completion routine pointer */ 198 u_char *compData; /* completion routine data pointer */ 199 u_int cmd; /* the original command for this data */ 200 u_int unsol; /* 1 if packet was unsolicited */ 201 u_int ack_only; /* 1 for no special processing */ 202 }; 203 204 /* 205 * Text representations of each hardware class 206 */ 207 char *adbHardwareDescr[MAX_ADB_HW + 1] = { 208 "unknown", 209 "II series", 210 "IIsi series", 211 "PowerBook", 212 "Cuda", 213 }; 214 215 /* 216 * A few variables that we need and their initial values. 217 */ 218 int adbHardware = ADB_HW_UNKNOWN; 219 int adbActionState = ADB_ACTION_NOTREADY; 220 int adbBusState = ADB_BUS_UNKNOWN; 221 int adbWaiting = 0; /* waiting for return data from the device */ 222 int adbWriteDelay = 0; /* working on (or waiting to do) a write */ 223 int adbOutQueueHasData = 0; /* something in the queue waiting to go out */ 224 int adbNextEnd = 0; /* the next incoming bute is the last (II) */ 225 int adbSoftPower = 0; /* machine supports soft power */ 226 227 int adbWaitingCmd = 0; /* ADB command we are waiting for */ 228 u_char *adbBuffer = (long)0; /* pointer to user data area */ 229 void *adbCompRout = (long)0; /* pointer to the completion routine */ 230 void *adbCompData = (long)0; /* pointer to the completion routine data */ 231 long adbFakeInts = 0; /* keeps track of fake ADB interrupts for 232 * timeouts (II) */ 233 int adbStarting = 1; /* doing ADBReInit so do polling differently */ 234 int adbSendTalk = 0; /* the intr routine is sending the talk, not 235 * the user (II) */ 236 int adbPolling = 0; /* we are polling for service request */ 237 int adbPollCmd = 0; /* the last poll command we sent */ 238 239 u_char adbInputBuffer[ADB_MAX_MSG_LENGTH]; /* data input buffer */ 240 u_char adbOutputBuffer[ADB_MAX_MSG_LENGTH]; /* data output buffer */ 241 struct adbCmdHoldEntry adbOutQueue; /* our 1 entry output queue */ 242 243 int adbSentChars = 0; /* how many characters we have sent */ 244 int adbLastDevice = 0; /* last ADB dev we heard from (II ONLY) */ 245 int adbLastDevIndex = 0; /* last ADB dev loc in dev table (II ONLY) */ 246 int adbLastCommand = 0; /* the last ADB command we sent (II) */ 247 248 struct ADBDevEntry ADBDevTable[16]; /* our ADB device table */ 249 int ADBNumDevices; /* num. of ADB devices found with ADBReInit */ 250 251 struct adbCommand adbInbound[ADB_QUEUE]; /* incoming queue */ 252 int adbInCount = 0; /* how many packets in in queue */ 253 int adbInHead = 0; /* head of in queue */ 254 int adbInTail = 0; /* tail of in queue */ 255 struct adbCommand adbOutbound[ADB_QUEUE]; /* outgoing queue - not used yet */ 256 int adbOutCount = 0; /* how many packets in out queue */ 257 int adbOutHead = 0; /* head of out queue */ 258 int adbOutTail = 0; /* tail of out queue */ 259 260 int tickle_count = 0; /* how many tickles seen for this packet? */ 261 int tickle_serial = 0; /* the last packet tickled */ 262 int adb_cuda_serial = 0; /* the current packet */ 263 264 extern struct mac68k_machine_S mac68k_machine; 265 266 void pm_setup_adb __P((void)); 267 void pm_check_adb_devices __P((int)); 268 void pm_intr __P((void)); 269 int pm_adb_op __P((u_char *, void *, void *, int)); 270 void pm_init_adb_device __P((void)); 271 272 /* 273 * The following are private routines. 274 */ 275 #ifdef ADB_DEBUG 276 void print_single __P((u_char *)); 277 #endif 278 void adb_intr __P((void)); 279 void adb_intr_II __P((void)); 280 void adb_intr_IIsi __P((void)); 281 void adb_intr_cuda __P((void)); 282 void adb_soft_intr __P((void)); 283 int send_adb_II __P((u_char *, u_char *, void *, void *, int)); 284 int send_adb_IIsi __P((u_char *, u_char *, void *, void *, int)); 285 int send_adb_cuda __P((u_char *, u_char *, void *, void *, int)); 286 void adb_intr_cuda_test __P((void)); 287 void adb_cuda_tickle __P((void)); 288 void adb_pass_up __P((struct adbCommand *)); 289 void adb_op_comprout __P((void)); 290 void adb_reinit __P((void)); 291 int count_adbs __P((void)); 292 int get_ind_adb_info __P((ADBDataBlock *, int)); 293 int get_adb_info __P((ADBDataBlock *, int)); 294 int set_adb_info __P((ADBSetInfoBlock *, int)); 295 void adb_setup_hw_type __P((void)); 296 int adb_op __P((Ptr, Ptr, Ptr, short)); 297 int adb_op_sync __P((Ptr, Ptr, Ptr, short)); 298 void adb_read_II __P((u_char *)); 299 void adb_hw_setup __P((void)); 300 void adb_hw_setup_IIsi __P((u_char *)); 301 void adb_comp_exec __P((void)); 302 int adb_cmd_result __P((u_char *)); 303 int adb_cmd_extra __P((u_char *)); 304 int adb_guess_next_device __P((void)); 305 int adb_prog_switch_enable __P((void)); 306 int adb_prog_switch_disable __P((void)); 307 /* we should create this and it will be the public version */ 308 int send_adb __P((u_char *, void *, void *)); 309 310 #ifdef ADB_DEBUG 311 /* 312 * print_single 313 * Diagnostic display routine. Displays the hex values of the 314 * specified elements of the u_char. The length of the "string" 315 * is in [0]. 316 */ 317 void 318 print_single(str) 319 u_char *str; 320 { 321 int x; 322 323 if (str == 0) { 324 printf_intr("no data - null pointer\n"); 325 return; 326 } 327 if (*str == 0) { 328 printf_intr("nothing returned\n"); 329 return; 330 } 331 if (*str > 20) { 332 printf_intr("ADB: ACK > 20 no way!\n"); 333 *str = (u_char)20; 334 } 335 printf_intr("(length=0x%x):", (u_int)*str); 336 for (x = 1; x <= *str; x++) 337 printf_intr(" 0x%02x", (u_int)*(str + x)); 338 printf_intr("\n"); 339 } 340 #endif 341 342 void 343 adb_cuda_tickle(void) 344 { 345 volatile int s; 346 347 if (adbActionState == ADB_ACTION_IN) { 348 if (tickle_serial == adb_cuda_serial) { 349 if (++tickle_count > 0) { 350 s = splhigh(); 351 adbActionState = ADB_ACTION_IDLE; 352 adbInputBuffer[0] = 0; 353 ADB_SET_STATE_IDLE_CUDA(); 354 splx(s); 355 } 356 } else { 357 tickle_serial = adb_cuda_serial; 358 tickle_count = 0; 359 } 360 } else { 361 tickle_serial = adb_cuda_serial; 362 tickle_count = 0; 363 } 364 365 timeout((void *)adb_cuda_tickle, 0, ADB_TICKLE_TICKS); 366 } 367 368 /* 369 * called when when an adb interrupt happens 370 * 371 * Cuda version of adb_intr 372 * TO DO: do we want to add some calls to intr_dispatch() here to 373 * grab serial interrupts? 374 */ 375 void 376 adb_intr_cuda(void) 377 { 378 volatile int i, ending; 379 volatile unsigned int s; 380 struct adbCommand packet; 381 382 s = splhigh(); /* can't be too careful - might be called */ 383 /* from a routine, NOT an interrupt */ 384 385 ADB_VIA_CLR_INTR(); /* clear interrupt */ 386 ADB_VIA_INTR_DISABLE(); /* disable ADB interrupt on IIs. */ 387 388 switch_start: 389 switch (adbActionState) { 390 case ADB_ACTION_IDLE: 391 /* 392 * This is an unexpected packet, so grab the first (dummy) 393 * byte, set up the proper vars, and tell the chip we are 394 * starting to receive the packet by setting the TIP bit. 395 */ 396 adbInputBuffer[1] = ADB_SR(); 397 adb_cuda_serial++; 398 if (ADB_INTR_IS_OFF) /* must have been a fake start */ 399 break; 400 401 ADB_SET_SR_INPUT(); 402 ADB_SET_STATE_TIP(); 403 404 adbInputBuffer[0] = 1; 405 adbActionState = ADB_ACTION_IN; 406 #ifdef ADB_DEBUG 407 if (adb_debug) 408 printf_intr("idle 0x%02x ", adbInputBuffer[1]); 409 #endif 410 break; 411 412 case ADB_ACTION_IN: 413 adbInputBuffer[++adbInputBuffer[0]] = ADB_SR(); 414 /* intr off means this is the last byte (end of frame) */ 415 if (ADB_INTR_IS_OFF) 416 ending = 1; 417 else 418 ending = 0; 419 420 if (1 == ending) { /* end of message? */ 421 #ifdef ADB_DEBUG 422 if (adb_debug) { 423 printf_intr("in end 0x%02x ", 424 adbInputBuffer[adbInputBuffer[0]]); 425 print_single(adbInputBuffer); 426 } 427 #endif 428 429 /* 430 * Are we waiting AND does this packet match what we 431 * are waiting for AND is it coming from either the 432 * ADB or RTC/PRAM sub-device? This section _should_ 433 * recognize all ADB and RTC/PRAM type commands, but 434 * there may be more... NOTE: commands are always at 435 * [4], even for RTC/PRAM commands. 436 */ 437 /* set up data for adb_pass_up */ 438 memcpy(packet.data, adbInputBuffer, adbInputBuffer[0] + 1); 439 440 if ((adbWaiting == 1) && 441 (adbInputBuffer[4] == adbWaitingCmd) && 442 ((adbInputBuffer[2] == 0x00) || 443 (adbInputBuffer[2] == 0x01))) { 444 packet.saveBuf = adbBuffer; 445 packet.compRout = adbCompRout; 446 packet.compData = adbCompData; 447 packet.unsol = 0; 448 packet.ack_only = 0; 449 adb_pass_up(&packet); 450 451 adbWaitingCmd = 0; /* reset "waiting" vars */ 452 adbWaiting = 0; 453 adbBuffer = (long)0; 454 adbCompRout = (long)0; 455 adbCompData = (long)0; 456 } else { 457 packet.unsol = 1; 458 packet.ack_only = 0; 459 adb_pass_up(&packet); 460 } 461 462 463 /* reset vars and signal the end of this frame */ 464 adbActionState = ADB_ACTION_IDLE; 465 adbInputBuffer[0] = 0; 466 ADB_SET_STATE_IDLE_CUDA(); 467 /*ADB_SET_SR_INPUT();*/ 468 469 /* 470 * If there is something waiting to be sent out, 471 * the set everything up and send the first byte. 472 */ 473 if (adbWriteDelay == 1) { 474 delay(ADB_DELAY); /* required */ 475 adbSentChars = 0; 476 adbActionState = ADB_ACTION_OUT; 477 /* 478 * If the interrupt is on, we were too slow 479 * and the chip has already started to send 480 * something to us, so back out of the write 481 * and start a read cycle. 482 */ 483 if (ADB_INTR_IS_ON) { 484 ADB_SET_SR_INPUT(); 485 ADB_SET_STATE_IDLE_CUDA(); 486 adbSentChars = 0; 487 adbActionState = ADB_ACTION_IDLE; 488 adbInputBuffer[0] = 0; 489 break; 490 } 491 /* 492 * If we got here, it's ok to start sending 493 * so load the first byte and tell the chip 494 * we want to send. 495 */ 496 ADB_SET_STATE_TIP(); 497 ADB_SET_SR_OUTPUT(); 498 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; 499 } 500 } else { 501 ADB_TOGGLE_STATE_ACK_CUDA(); 502 #ifdef ADB_DEBUG 503 if (adb_debug) 504 printf_intr("in 0x%02x ", 505 adbInputBuffer[adbInputBuffer[0]]); 506 #endif 507 } 508 break; 509 510 case ADB_ACTION_OUT: 511 i = ADB_SR(); /* reset SR-intr in IFR */ 512 #ifdef ADB_DEBUG 513 if (adb_debug) 514 printf_intr("intr out 0x%02x ", i); 515 #endif 516 517 adbSentChars++; 518 if (ADB_INTR_IS_ON) { /* ADB intr low during write */ 519 #ifdef ADB_DEBUG 520 if (adb_debug) 521 printf_intr("intr was on "); 522 #endif 523 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 524 ADB_SET_STATE_IDLE_CUDA(); 525 adbSentChars = 0; /* must start all over */ 526 adbActionState = ADB_ACTION_IDLE; /* new state */ 527 adbInputBuffer[0] = 0; 528 adbWriteDelay = 1; /* must retry when done with 529 * read */ 530 delay(ADB_DELAY); 531 goto switch_start; /* process next state right 532 * now */ 533 break; 534 } 535 if (adbOutputBuffer[0] == adbSentChars) { /* check for done */ 536 if (0 == adb_cmd_result(adbOutputBuffer)) { /* do we expect data 537 * back? */ 538 adbWaiting = 1; /* signal waiting for return */ 539 adbWaitingCmd = adbOutputBuffer[2]; /* save waiting command */ 540 } else { /* no talk, so done */ 541 /* set up stuff for adb_pass_up */ 542 memcpy(packet.data, adbInputBuffer, adbInputBuffer[0] + 1); 543 packet.saveBuf = adbBuffer; 544 packet.compRout = adbCompRout; 545 packet.compData = adbCompData; 546 packet.cmd = adbWaitingCmd; 547 packet.unsol = 0; 548 packet.ack_only = 1; 549 adb_pass_up(&packet); 550 551 /* reset "waiting" vars, just in case */ 552 adbWaitingCmd = 0; 553 adbBuffer = (long)0; 554 adbCompRout = (long)0; 555 adbCompData = (long)0; 556 } 557 558 adbWriteDelay = 0; /* done writing */ 559 adbActionState = ADB_ACTION_IDLE; /* signal bus is idle */ 560 ADB_SET_SR_INPUT(); 561 ADB_SET_STATE_IDLE_CUDA(); 562 #ifdef ADB_DEBUG 563 if (adb_debug) 564 printf_intr("write done "); 565 #endif 566 } else { 567 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; /* send next byte */ 568 ADB_TOGGLE_STATE_ACK_CUDA(); /* signal byte ready to 569 * shift */ 570 #ifdef ADB_DEBUG 571 if (adb_debug) 572 printf_intr("toggle "); 573 #endif 574 } 575 break; 576 577 case ADB_ACTION_NOTREADY: 578 #ifdef ADB_DEBUG 579 if (adb_debug) 580 printf_intr("adb: not yet initialized\n"); 581 #endif 582 break; 583 584 default: 585 #ifdef ADB_DEBUG 586 if (adb_debug) 587 printf_intr("intr: unknown ADB state\n"); 588 #endif 589 } 590 591 ADB_VIA_INTR_ENABLE(); /* enable ADB interrupt on IIs. */ 592 593 splx(s); /* restore */ 594 595 return; 596 } /* end adb_intr_cuda */ 597 598 599 int 600 send_adb_cuda(u_char * in, u_char * buffer, void *compRout, void *data, int 601 command) 602 { 603 int s, len; 604 605 #ifdef ADB_DEBUG 606 if (adb_debug) 607 printf_intr("SEND\n"); 608 #endif 609 610 if (adbActionState == ADB_ACTION_NOTREADY) 611 return 1; 612 613 /* Don't interrupt while we are messing with the ADB */ 614 s = splhigh(); 615 616 if ((adbActionState == ADB_ACTION_IDLE) && /* ADB available? */ 617 (ADB_INTR_IS_OFF)) { /* and no incoming interrupt? */ 618 } else 619 if (adbWriteDelay == 0) /* it's busy, but is anything waiting? */ 620 adbWriteDelay = 1; /* if no, then we'll "queue" 621 * it up */ 622 else { 623 splx(s); 624 return 1; /* really busy! */ 625 } 626 627 #ifdef ADB_DEBUG 628 if (adb_debug) 629 printf_intr("QUEUE\n"); 630 #endif 631 if ((long)in == (long)0) { /* need to convert? */ 632 /* 633 * Don't need to use adb_cmd_extra here because this section 634 * will be called ONLY when it is an ADB command (no RTC or 635 * PRAM) 636 */ 637 if ((command & 0x0c) == 0x08) /* copy addl data ONLY if 638 * doing a listen! */ 639 len = buffer[0]; /* length of additional data */ 640 else 641 len = 0;/* no additional data */ 642 643 adbOutputBuffer[0] = 2 + len; /* dev. type + command + addl. 644 * data */ 645 adbOutputBuffer[1] = 0x00; /* mark as an ADB command */ 646 adbOutputBuffer[2] = (u_char)command; /* load command */ 647 648 /* copy additional output data, if any */ 649 memcpy(adbOutputBuffer + 3, buffer + 1, len); 650 } else 651 /* if data ready, just copy over */ 652 memcpy(adbOutputBuffer, in, in[0] + 2); 653 654 adbSentChars = 0; /* nothing sent yet */ 655 adbBuffer = buffer; /* save buffer to know where to save result */ 656 adbCompRout = compRout; /* save completion routine pointer */ 657 adbCompData = data; /* save completion routine data pointer */ 658 adbWaitingCmd = adbOutputBuffer[2]; /* save wait command */ 659 660 if (adbWriteDelay != 1) { /* start command now? */ 661 #ifdef ADB_DEBUG 662 if (adb_debug) 663 printf_intr("out start NOW"); 664 #endif 665 delay(ADB_DELAY); 666 adbActionState = ADB_ACTION_OUT; /* set next state */ 667 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 668 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; /* load byte for output */ 669 ADB_SET_STATE_ACKOFF_CUDA(); 670 ADB_SET_STATE_TIP(); /* tell ADB that we want to send */ 671 } 672 adbWriteDelay = 1; /* something in the write "queue" */ 673 674 splx(s); 675 676 if (0x0100 <= (s & 0x0700)) /* were VIA1 interrupts blocked? */ 677 /* poll until byte done */ 678 while ((adbActionState != ADB_ACTION_IDLE) || (ADB_INTR_IS_ON) 679 || (adbWaiting == 1)) 680 if (ADB_SR_INTR_IS_ON) { /* wait for "interrupt" */ 681 adb_intr_cuda(); /* go process it */ 682 if (adb_polling) 683 adb_soft_intr(); 684 } 685 686 return 0; 687 } /* send_adb_cuda */ 688 689 690 void 691 adb_intr_II(void) 692 { 693 struct adbCommand packet; 694 int i, intr_on = 0; 695 int send = 0; 696 unsigned int s; 697 698 s = splhigh(); /* can't be too careful - might be called */ 699 /* from a routine, NOT an interrupt */ 700 701 ADB_VIA_CLR_INTR(); /* clear interrupt */ 702 703 ADB_VIA_INTR_DISABLE(); /* disable ADB interrupt on IIs. */ 704 705 delay(ADB_DELAY); /* yuck (don't remove) */ 706 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 707 708 if (ADB_INTR_IS_ON) 709 intr_on = 1; /* save for later */ 710 711 switch_start: 712 switch (adbActionState) { 713 case ADB_ACTION_POLLING: 714 if (!intr_on) { 715 if (adbOutQueueHasData) { 716 #ifdef ADB_DEBUG 717 if (adb_debug & 0x80) 718 printf_intr("POLL-doing-out-queue. "); 719 #endif 720 ADB_SET_STATE_IDLE_II(); 721 delay(ADB_DELAY); 722 723 /* copy over data */ 724 memcpy(adbOutputBuffer, adbOutQueue.outBuf, 725 adbOutQueue.outBuf[0] + 2); 726 727 adbBuffer = adbOutQueue.saveBuf; /* user data area */ 728 adbCompRout = adbOutQueue.compRout; /* completion routine */ 729 adbCompData = adbOutQueue.data; /* comp. rout. data */ 730 adbOutQueueHasData = 0; /* currently processing 731 * "queue" entry */ 732 adbSentChars = 0; /* nothing sent yet */ 733 adbActionState = ADB_ACTION_OUT; /* set next state */ 734 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 735 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 736 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 737 ADB_SET_STATE_CMD(); /* tell ADB that we want to send */ 738 break; 739 } else { 740 #ifdef ADB_DEBUG 741 if (adb_debug) 742 printf_intr("pIDLE "); 743 #endif 744 adbActionState = ADB_ACTION_IDLE; 745 } 746 } else { 747 #ifdef ADB_DEBUG 748 if (adb_debug & 0x80) 749 printf_intr("pIN "); 750 #endif 751 adbActionState = ADB_ACTION_IN; 752 } 753 delay(ADB_DELAY); 754 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 755 goto switch_start; 756 break; 757 case ADB_ACTION_IDLE: 758 if (!intr_on) { 759 i = ADB_SR(); 760 adbBusState = ADB_BUS_IDLE; 761 adbActionState = ADB_ACTION_IDLE; 762 ADB_SET_STATE_IDLE_II(); 763 break; 764 } 765 adbInputBuffer[0] = 1; 766 adbInputBuffer[1] = ADB_SR(); /* get first byte */ 767 #ifdef ADB_DEBUG 768 if (adb_debug & 0x80) 769 printf_intr("idle 0x%02x ", adbInputBuffer[1]); 770 #endif 771 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 772 adbActionState = ADB_ACTION_IN; /* set next state */ 773 ADB_SET_STATE_EVEN(); /* set bus state to even */ 774 adbBusState = ADB_BUS_EVEN; 775 break; 776 777 case ADB_ACTION_IN: 778 adbInputBuffer[++adbInputBuffer[0]] = ADB_SR(); /* get byte */ 779 #ifdef ADB_DEBUG 780 if (adb_debug & 0x80) 781 printf_intr("in 0x%02x ", 782 adbInputBuffer[adbInputBuffer[0]]); 783 #endif 784 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 785 786 if (intr_on) { /* process last byte of packet */ 787 adbInputBuffer[0]--; /* minus one */ 788 /* 789 * If intr_on was true, and it's the second byte, then 790 * the byte we just discarded is really valid, so 791 * adjust the count 792 */ 793 if (adbInputBuffer[0] == 2) { 794 adbInputBuffer[0]++; 795 } 796 797 #ifdef ADB_DEBUG 798 if (adb_debug & 0x80) { 799 printf_intr("done: "); 800 print_single(adbInputBuffer); 801 } 802 #endif 803 804 adbLastDevice = (adbInputBuffer[1] & 0xf0) >> 4; 805 806 if (adbInputBuffer[0] == 1 && !adbWaiting) { /* SRQ!!!*/ 807 #ifdef ADB_DEBUG 808 if (adb_debug & 0x80) 809 printf_intr(" xSRQ! "); 810 #endif 811 adb_guess_next_device(); 812 #ifdef ADB_DEBUG 813 if (adb_debug & 0x80) 814 printf_intr("try 0x%0x ", 815 adbLastDevice); 816 #endif 817 adbOutputBuffer[0] = 1; 818 adbOutputBuffer[1] = 819 ((adbLastDevice & 0x0f) << 4) | 0x0c; 820 821 adbSentChars = 0; /* nothing sent yet */ 822 adbActionState = ADB_ACTION_POLLING; /* set next state */ 823 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 824 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 825 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 826 ADB_SET_STATE_CMD(); /* tell ADB that we want to */ 827 break; 828 } 829 830 /* set up data for adb_pass_up */ 831 memcpy(packet.data, adbInputBuffer, adbInputBuffer[0] + 1); 832 833 if (!adbWaiting && (adbInputBuffer[0] != 0)) { 834 packet.unsol = 1; 835 packet.ack_only = 0; 836 adb_pass_up(&packet); 837 } else { 838 packet.saveBuf = adbBuffer; 839 packet.compRout = adbCompRout; 840 packet.compData = adbCompData; 841 packet.unsol = 0; 842 packet.ack_only = 0; 843 adb_pass_up(&packet); 844 } 845 846 adbWaiting = 0; 847 adbInputBuffer[0] = 0; 848 adbBuffer = (long)0; 849 adbCompRout = (long)0; 850 adbCompData = (long)0; 851 /* 852 * Since we are done, check whether there is any data 853 * waiting to do out. If so, start the sending the data. 854 */ 855 if (adbOutQueueHasData == 1) { 856 #ifdef ADB_DEBUG 857 if (adb_debug & 0x80) 858 printf_intr("XXX: DOING OUT QUEUE\n"); 859 #endif 860 /* copy over data */ 861 memcpy(adbOutputBuffer, adbOutQueue.outBuf, 862 adbOutQueue.outBuf[0] + 2); 863 adbBuffer = adbOutQueue.saveBuf; /* user data area */ 864 adbCompRout = adbOutQueue.compRout; /* completion routine */ 865 adbCompData = adbOutQueue.data; /* comp. rout. data */ 866 adbOutQueueHasData = 0; /* currently processing 867 * "queue" entry */ 868 send = 1; 869 } else { 870 #ifdef ADB_DEBUG 871 if (adb_debug & 0x80) 872 printf_intr("XXending "); 873 #endif 874 adb_guess_next_device(); 875 adbOutputBuffer[0] = 1; 876 adbOutputBuffer[1] = ((adbLastDevice & 0x0f) << 4) | 0x0c; 877 adbSentChars = 0; /* nothing sent yet */ 878 adbActionState = ADB_ACTION_POLLING; /* set next state */ 879 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 880 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 881 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 882 ADB_SET_STATE_CMD(); /* tell ADB that we want to */ 883 break; 884 } 885 } 886 887 /* 888 * If send is true then something above determined that 889 * the message has ended and we need to start sending out 890 * a new message immediately. This could be because there 891 * is data waiting to go out or because an SRQ was seen. 892 */ 893 if (send) { 894 adbSentChars = 0; /* nothing sent yet */ 895 adbActionState = ADB_ACTION_OUT; /* set next state */ 896 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 897 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 898 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 899 ADB_SET_STATE_CMD(); /* tell ADB that we want to 900 * send */ 901 break; 902 } 903 /* We only get this far if the message hasn't ended yet. */ 904 switch (adbBusState) { /* set to next state */ 905 case ADB_BUS_EVEN: 906 ADB_SET_STATE_ODD(); /* set state to odd */ 907 adbBusState = ADB_BUS_ODD; 908 break; 909 910 case ADB_BUS_ODD: 911 ADB_SET_STATE_EVEN(); /* set state to even */ 912 adbBusState = ADB_BUS_EVEN; 913 break; 914 default: 915 printf_intr("strange state!!!\n"); /* huh? */ 916 break; 917 } 918 break; 919 920 case ADB_ACTION_OUT: 921 i = ADB_SR(); /* clear interrupt */ 922 adbSentChars++; 923 /* 924 * If the outgoing data was a TALK, we must 925 * switch to input mode to get the result. 926 */ 927 if ((adbOutputBuffer[1] & 0x0c) == 0x0c) { 928 adbInputBuffer[0] = 1; 929 adbInputBuffer[1] = i; 930 adbActionState = ADB_ACTION_IN; 931 ADB_SET_SR_INPUT(); 932 adbBusState = ADB_BUS_EVEN; 933 ADB_SET_STATE_EVEN(); 934 #ifdef ADB_DEBUG 935 if (adb_debug & 0x80) 936 printf_intr("talk out 0x%02x ", i); 937 #endif 938 /* we want something back */ 939 adbWaiting = 1; 940 break; 941 } 942 /* 943 * If it's not a TALK, check whether all data has been sent. 944 * If so, call the completion routine and clean up. If not, 945 * advance to the next state. 946 */ 947 #ifdef ADB_DEBUG 948 if (adb_debug & 0x80) 949 printf_intr("non-talk out 0x%0x ", i); 950 #endif 951 ADB_SET_SR_OUTPUT(); 952 if (adbOutputBuffer[0] == adbSentChars) { /* check for done */ 953 #ifdef ADB_DEBUG 954 if (adb_debug & 0x80) 955 printf_intr("done \n"); 956 #endif 957 /* set up stuff for adb_pass_up */ 958 memcpy(packet.data, adbOutputBuffer, adbOutputBuffer[0] + 1); 959 packet.saveBuf = adbBuffer; 960 packet.compRout = adbCompRout; 961 packet.compData = adbCompData; 962 packet.cmd = adbWaitingCmd; 963 packet.unsol = 0; 964 packet.ack_only = 1; 965 adb_pass_up(&packet); 966 967 /* reset "waiting" vars, just in case */ 968 adbBuffer = (long)0; 969 adbCompRout = (long)0; 970 adbCompData = (long)0; 971 if (adbOutQueueHasData == 1) { 972 /* copy over data */ 973 memcpy(adbOutputBuffer, adbOutQueue.outBuf, 974 adbOutQueue.outBuf[0] + 2); 975 adbBuffer = adbOutQueue.saveBuf; /* user data area */ 976 adbCompRout = adbOutQueue.compRout; /* completion routine */ 977 adbCompData = adbOutQueue.data; /* comp. rout. data */ 978 adbOutQueueHasData = 0; /* currently processing 979 * "queue" entry */ 980 adbSentChars = 0; /* nothing sent yet */ 981 adbActionState = ADB_ACTION_OUT; /* set next state */ 982 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 983 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 984 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 985 ADB_SET_STATE_CMD(); /* tell ADB that we want to 986 * send */ 987 break; 988 } else { 989 /* send talk to last device instead */ 990 adbOutputBuffer[0] = 1; 991 adbOutputBuffer[1] = (adbOutputBuffer[1] & 0xf0) | 0x0c; 992 993 adbSentChars = 0; /* nothing sent yet */ 994 adbActionState = ADB_ACTION_IDLE; /* set next state */ 995 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 996 ADB_SR() = adbOutputBuffer[1]; /* load byte for output */ 997 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 998 ADB_SET_STATE_CMD(); /* tell ADB that we want to */ 999 break; 1000 } 1001 } 1002 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; 1003 switch (adbBusState) { /* advance to next state */ 1004 case ADB_BUS_EVEN: 1005 ADB_SET_STATE_ODD(); /* set state to odd */ 1006 adbBusState = ADB_BUS_ODD; 1007 break; 1008 1009 case ADB_BUS_CMD: 1010 case ADB_BUS_ODD: 1011 ADB_SET_STATE_EVEN(); /* set state to even */ 1012 adbBusState = ADB_BUS_EVEN; 1013 break; 1014 1015 default: 1016 #ifdef ADB_DEBUG 1017 if (adb_debug) { 1018 printf_intr("strange state!!! (0x%x)\n", 1019 adbBusState); 1020 } 1021 #endif 1022 break; 1023 } 1024 break; 1025 1026 default: 1027 #ifdef ADB_DEBUG 1028 if (adb_debug) 1029 printf_intr("adb: unknown ADB state (during intr)\n"); 1030 #endif 1031 } 1032 1033 ADB_VIA_INTR_ENABLE(); /* enable ADB interrupt on IIs. */ 1034 1035 splx(s); /* restore */ 1036 1037 return; 1038 1039 } 1040 1041 1042 /* 1043 * send_adb version for II series machines 1044 */ 1045 int 1046 send_adb_II(u_char * in, u_char * buffer, void *compRout, void *data, int command) 1047 { 1048 int s, len; 1049 1050 if (adbActionState == ADB_ACTION_NOTREADY) /* return if ADB not 1051 * available */ 1052 return 1; 1053 1054 /* Don't interrupt while we are messing with the ADB */ 1055 s = splhigh(); 1056 1057 if (0 != adbOutQueueHasData) { /* right now, "has data" means "full" */ 1058 splx(s); /* sorry, try again later */ 1059 return 1; 1060 } 1061 if ((long)in == (long)0) { /* need to convert? */ 1062 /* 1063 * Don't need to use adb_cmd_extra here because this section 1064 * will be called ONLY when it is an ADB command (no RTC or 1065 * PRAM), especially on II series! 1066 */ 1067 if ((command & 0x0c) == 0x08) /* copy addl data ONLY if 1068 * doing a listen! */ 1069 len = buffer[0]; /* length of additional data */ 1070 else 1071 len = 0;/* no additional data */ 1072 1073 adbOutQueue.outBuf[0] = 1 + len; /* command + addl. data */ 1074 adbOutQueue.outBuf[1] = (u_char)command; /* load command */ 1075 1076 /* copy additional output data, if any */ 1077 memcpy(adbOutQueue.outBuf + 2, buffer + 1, len); 1078 } else 1079 /* if data ready, just copy over */ 1080 memcpy(adbOutQueue.outBuf, in, in[0] + 2); 1081 1082 adbOutQueue.saveBuf = buffer; /* save buffer to know where to save 1083 * result */ 1084 adbOutQueue.compRout = compRout; /* save completion routine 1085 * pointer */ 1086 adbOutQueue.data = data;/* save completion routine data pointer */ 1087 1088 if ((adbActionState == ADB_ACTION_IDLE) && /* is ADB available? */ 1089 (ADB_INTR_IS_OFF)) { /* and no incoming interrupts? */ 1090 /* then start command now */ 1091 memcpy(adbOutputBuffer, adbOutQueue.outBuf, 1092 adbOutQueue.outBuf[0] + 2); /* copy over data */ 1093 1094 adbBuffer = adbOutQueue.saveBuf; /* pointer to user data 1095 * area */ 1096 adbCompRout = adbOutQueue.compRout; /* pointer to the 1097 * completion routine */ 1098 adbCompData = adbOutQueue.data; /* pointer to the completion 1099 * routine data */ 1100 1101 adbSentChars = 0; /* nothing sent yet */ 1102 adbActionState = ADB_ACTION_OUT; /* set next state */ 1103 adbBusState = ADB_BUS_CMD; /* set bus to cmd state */ 1104 1105 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 1106 1107 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; /* load byte for output */ 1108 ADB_SET_STATE_CMD(); /* tell ADB that we want to send */ 1109 adbOutQueueHasData = 0; /* currently processing "queue" entry */ 1110 } else 1111 adbOutQueueHasData = 1; /* something in the write "queue" */ 1112 1113 splx(s); 1114 1115 if (0x0100 <= (s & 0x0700)) /* were VIA1 interrupts blocked? */ 1116 /* poll until message done */ 1117 while ((adbActionState != ADB_ACTION_IDLE) || (ADB_INTR_IS_ON) 1118 || (adbWaiting == 1)) 1119 if (ADB_SR_INTR_IS_ON) { /* wait for "interrupt" */ 1120 adb_intr_II(); /* go process it */ 1121 if (adb_polling) 1122 adb_soft_intr(); 1123 } 1124 1125 return 0; 1126 } 1127 1128 1129 /* 1130 * This routine is called from the II series interrupt routine 1131 * to determine what the "next" device is that should be polled. 1132 */ 1133 int 1134 adb_guess_next_device(void) 1135 { 1136 int last, i, dummy; 1137 1138 if (adbStarting) { 1139 /* 1140 * Start polling EVERY device, since we can't be sure there is 1141 * anything in the device table yet 1142 */ 1143 if (adbLastDevice < 1 || adbLastDevice > 15) 1144 adbLastDevice = 1; 1145 if (++adbLastDevice > 15) /* point to next one */ 1146 adbLastDevice = 1; 1147 } else { 1148 /* find the next device using the device table */ 1149 if (adbLastDevice < 1 || adbLastDevice > 15) /* let's be parinoid */ 1150 adbLastDevice = 2; 1151 last = 1; /* default index location */ 1152 1153 for (i = 1; i < 16; i++) /* find index entry */ 1154 if (ADBDevTable[i].currentAddr == adbLastDevice) { /* look for device */ 1155 last = i; /* found it */ 1156 break; 1157 } 1158 dummy = last; /* index to start at */ 1159 for (;;) { /* find next device in index */ 1160 if (++dummy > 15) /* wrap around if needed */ 1161 dummy = 1; 1162 if (dummy == last) { /* didn't find any other 1163 * device! This can happen if 1164 * there are no devices on the 1165 * bus */ 1166 dummy = 1; 1167 break; 1168 } 1169 /* found the next device */ 1170 if (ADBDevTable[dummy].devType != 0) 1171 break; 1172 } 1173 adbLastDevice = ADBDevTable[dummy].currentAddr; 1174 } 1175 return adbLastDevice; 1176 } 1177 1178 1179 /* 1180 * Called when when an adb interrupt happens. 1181 * This routine simply transfers control over to the appropriate 1182 * code for the machine we are running on. 1183 */ 1184 void 1185 adb_intr(void) 1186 { 1187 switch (adbHardware) { 1188 case ADB_HW_II: 1189 adb_intr_II(); 1190 break; 1191 1192 case ADB_HW_IISI: 1193 adb_intr_IIsi(); 1194 break; 1195 1196 case ADB_HW_PB: 1197 break; 1198 1199 case ADB_HW_CUDA: 1200 adb_intr_cuda(); 1201 break; 1202 1203 case ADB_HW_UNKNOWN: 1204 break; 1205 } 1206 } 1207 1208 1209 /* 1210 * called when when an adb interrupt happens 1211 * 1212 * IIsi version of adb_intr 1213 * 1214 */ 1215 void 1216 adb_intr_IIsi(void) 1217 { 1218 struct adbCommand packet; 1219 int i, ending; 1220 unsigned int s; 1221 1222 s = splhigh(); /* can't be too careful - might be called */ 1223 /* from a routine, NOT an interrupt */ 1224 1225 ADB_VIA_CLR_INTR(); /* clear interrupt */ 1226 1227 ADB_VIA_INTR_DISABLE(); /* disable ADB interrupt on IIs. */ 1228 1229 switch_start: 1230 switch (adbActionState) { 1231 case ADB_ACTION_IDLE: 1232 delay(ADB_DELAY); /* short delay is required before the 1233 * first byte */ 1234 1235 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 1236 ADB_SET_STATE_ACTIVE(); /* signal start of data frame */ 1237 adbInputBuffer[1] = ADB_SR(); /* get byte */ 1238 adbInputBuffer[0] = 1; 1239 adbActionState = ADB_ACTION_IN; /* set next state */ 1240 1241 ADB_SET_STATE_ACKON(); /* start ACK to ADB chip */ 1242 delay(ADB_DELAY); /* delay */ 1243 ADB_SET_STATE_ACKOFF(); /* end ACK to ADB chip */ 1244 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 1245 break; 1246 1247 case ADB_ACTION_IN: 1248 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 1249 adbInputBuffer[++adbInputBuffer[0]] = ADB_SR(); /* get byte */ 1250 if (ADB_INTR_IS_OFF) /* check for end of frame */ 1251 ending = 1; 1252 else 1253 ending = 0; 1254 1255 ADB_SET_STATE_ACKON(); /* start ACK to ADB chip */ 1256 delay(ADB_DELAY); /* delay */ 1257 ADB_SET_STATE_ACKOFF(); /* end ACK to ADB chip */ 1258 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 1259 1260 if (1 == ending) { /* end of message? */ 1261 ADB_SET_STATE_INACTIVE(); /* signal end of frame */ 1262 /* 1263 * This section _should_ handle all ADB and RTC/PRAM 1264 * type commands, but there may be more... Note: 1265 * commands are always at [4], even for rtc/pram 1266 * commands 1267 */ 1268 /* set up data for adb_pass_up */ 1269 memcpy(packet.data, adbInputBuffer, adbInputBuffer[0] + 1); 1270 1271 if ((adbWaiting == 1) && /* are we waiting AND */ 1272 (adbInputBuffer[4] == adbWaitingCmd) && /* the cmd we sent AND */ 1273 ((adbInputBuffer[2] == 0x00) || /* it's from the ADB 1274 * device OR */ 1275 (adbInputBuffer[2] == 0x01))) { /* it's from the 1276 * PRAM/RTC device */ 1277 1278 packet.saveBuf = adbBuffer; 1279 packet.compRout = adbCompRout; 1280 packet.compData = adbCompData; 1281 packet.unsol = 0; 1282 packet.ack_only = 0; 1283 adb_pass_up(&packet); 1284 1285 adbWaitingCmd = 0; /* reset "waiting" vars */ 1286 adbWaiting = 0; 1287 adbBuffer = (long)0; 1288 adbCompRout = (long)0; 1289 adbCompData = (long)0; 1290 } else { 1291 packet.unsol = 1; 1292 packet.ack_only = 0; 1293 adb_pass_up(&packet); 1294 } 1295 1296 adbActionState = ADB_ACTION_IDLE; 1297 adbInputBuffer[0] = 0; /* reset length */ 1298 1299 if (adbWriteDelay == 1) { /* were we waiting to 1300 * write? */ 1301 adbSentChars = 0; /* nothing sent yet */ 1302 adbActionState = ADB_ACTION_OUT; /* set next state */ 1303 1304 delay(ADB_DELAY); /* delay */ 1305 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 1306 1307 if (ADB_INTR_IS_ON) { /* ADB intr low during 1308 * write */ 1309 ADB_SET_STATE_IDLE_IISI(); /* reset */ 1310 ADB_SET_SR_INPUT(); /* make sure SR is set 1311 * to IN */ 1312 adbSentChars = 0; /* must start all over */ 1313 adbActionState = ADB_ACTION_IDLE; /* new state */ 1314 adbInputBuffer[0] = 0; 1315 /* may be able to take this out later */ 1316 delay(ADB_DELAY); /* delay */ 1317 break; 1318 } 1319 ADB_SET_STATE_ACTIVE(); /* tell ADB that we want 1320 * to send */ 1321 ADB_SET_STATE_ACKOFF(); /* make sure */ 1322 ADB_SET_SR_OUTPUT(); /* set shift register 1323 * for OUT */ 1324 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; 1325 ADB_SET_STATE_ACKON(); /* tell ADB byte ready 1326 * to shift */ 1327 } 1328 } 1329 break; 1330 1331 case ADB_ACTION_OUT: 1332 i = ADB_SR(); /* reset SR-intr in IFR */ 1333 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 1334 1335 ADB_SET_STATE_ACKOFF(); /* finish ACK */ 1336 adbSentChars++; 1337 if (ADB_INTR_IS_ON) { /* ADB intr low during write */ 1338 ADB_SET_STATE_IDLE_IISI(); /* reset */ 1339 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 1340 adbSentChars = 0; /* must start all over */ 1341 adbActionState = ADB_ACTION_IDLE; /* new state */ 1342 adbInputBuffer[0] = 0; 1343 adbWriteDelay = 1; /* must retry when done with 1344 * read */ 1345 delay(ADB_DELAY); /* delay */ 1346 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 1347 goto switch_start; /* process next state right 1348 * now */ 1349 break; 1350 } 1351 delay(ADB_DELAY); /* required delay */ 1352 (void)intr_dispatch(0x70); /* grab any serial interrupts */ 1353 1354 if (adbOutputBuffer[0] == adbSentChars) { /* check for done */ 1355 if (0 == adb_cmd_result(adbOutputBuffer)) { /* do we expect data 1356 * back? */ 1357 adbWaiting = 1; /* signal waiting for return */ 1358 adbWaitingCmd = adbOutputBuffer[2]; /* save waiting command */ 1359 } else {/* no talk, so done */ 1360 /* set up stuff for adb_pass_up */ 1361 memcpy(packet.data, adbInputBuffer, 1362 adbInputBuffer[0] + 1); 1363 packet.saveBuf = adbBuffer; 1364 packet.compRout = adbCompRout; 1365 packet.compData = adbCompData; 1366 packet.cmd = adbWaitingCmd; 1367 packet.unsol = 0; 1368 packet.ack_only = 1; 1369 adb_pass_up(&packet); 1370 1371 /* reset "waiting" vars, just in case */ 1372 adbWaitingCmd = 0; 1373 adbBuffer = (long)0; 1374 adbCompRout = (long)0; 1375 adbCompData = (long)0; 1376 } 1377 1378 adbWriteDelay = 0; /* done writing */ 1379 adbActionState = ADB_ACTION_IDLE; /* signal bus is idle */ 1380 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 1381 ADB_SET_STATE_INACTIVE(); /* end of frame */ 1382 } else { 1383 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; /* send next byte */ 1384 ADB_SET_STATE_ACKON(); /* signal byte ready to shift */ 1385 } 1386 break; 1387 1388 case ADB_ACTION_NOTREADY: 1389 #ifdef ADB_DEBUG 1390 if (adb_debug) 1391 printf_intr("adb: not yet initialized\n"); 1392 #endif 1393 break; 1394 1395 default: 1396 #ifdef ADB_DEBUG 1397 if (adb_debug) 1398 printf_intr("intr: unknown ADB state\n"); 1399 #endif 1400 } 1401 1402 ADB_VIA_INTR_ENABLE(); /* enable ADB interrupt on IIs. */ 1403 1404 splx(s); /* restore */ 1405 1406 return; 1407 } /* end adb_intr_IIsi */ 1408 1409 1410 /***************************************************************************** 1411 * if the device is currently busy, and there is no data waiting to go out, then 1412 * the data is "queued" in the outgoing buffer. If we are already waiting, then 1413 * we return. 1414 * in: if (in == 0) then the command string is built from command and buffer 1415 * if (in != 0) then in is used as the command string 1416 * buffer: additional data to be sent (used only if in == 0) 1417 * this is also where return data is stored 1418 * compRout: the completion routine that is called when then return value 1419 * is received (if a return value is expected) 1420 * data: a data pointer that can be used by the completion routine 1421 * command: an ADB command to be sent (used only if in == 0) 1422 * 1423 */ 1424 int 1425 send_adb_IIsi(u_char * in, u_char * buffer, void *compRout, void *data, int 1426 command) 1427 { 1428 int s, len; 1429 1430 if (adbActionState == ADB_ACTION_NOTREADY) 1431 return 1; 1432 1433 /* Don't interrupt while we are messing with the ADB */ 1434 s = splhigh(); 1435 1436 if ((adbActionState == ADB_ACTION_IDLE) && /* ADB available? */ 1437 (ADB_INTR_IS_OFF)) {/* and no incoming interrupt? */ 1438 1439 } else 1440 if (adbWriteDelay == 0) /* it's busy, but is anything waiting? */ 1441 adbWriteDelay = 1; /* if no, then we'll "queue" 1442 * it up */ 1443 else { 1444 splx(s); 1445 return 1; /* really busy! */ 1446 } 1447 1448 if ((long)in == (long)0) { /* need to convert? */ 1449 /* 1450 * Don't need to use adb_cmd_extra here because this section 1451 * will be called ONLY when it is an ADB command (no RTC or 1452 * PRAM) 1453 */ 1454 if ((command & 0x0c) == 0x08) /* copy addl data ONLY if 1455 * doing a listen! */ 1456 len = buffer[0]; /* length of additional data */ 1457 else 1458 len = 0;/* no additional data */ 1459 1460 adbOutputBuffer[0] = 2 + len; /* dev. type + command + addl. 1461 * data */ 1462 adbOutputBuffer[1] = 0x00; /* mark as an ADB command */ 1463 adbOutputBuffer[2] = (u_char)command; /* load command */ 1464 1465 /* copy additional output data, if any */ 1466 memcpy(adbOutputBuffer + 3, buffer + 1, len); 1467 } else 1468 /* if data ready, just copy over */ 1469 memcpy(adbOutputBuffer, in, in[0] + 2); 1470 1471 adbSentChars = 0; /* nothing sent yet */ 1472 adbBuffer = buffer; /* save buffer to know where to save result */ 1473 adbCompRout = compRout; /* save completion routine pointer */ 1474 adbCompData = data; /* save completion routine data pointer */ 1475 adbWaitingCmd = adbOutputBuffer[2]; /* save wait command */ 1476 1477 if (adbWriteDelay != 1) { /* start command now? */ 1478 adbActionState = ADB_ACTION_OUT; /* set next state */ 1479 1480 ADB_SET_STATE_ACTIVE(); /* tell ADB that we want to send */ 1481 ADB_SET_STATE_ACKOFF(); /* make sure */ 1482 1483 ADB_SET_SR_OUTPUT(); /* set shift register for OUT */ 1484 1485 ADB_SR() = adbOutputBuffer[adbSentChars + 1]; /* load byte for output */ 1486 1487 ADB_SET_STATE_ACKON(); /* tell ADB byte ready to shift */ 1488 } 1489 adbWriteDelay = 1; /* something in the write "queue" */ 1490 1491 splx(s); 1492 1493 if (0x0100 <= (s & 0x0700)) /* were VIA1 interrupts blocked? */ 1494 /* poll until byte done */ 1495 while ((adbActionState != ADB_ACTION_IDLE) || (ADB_INTR_IS_ON) 1496 || (adbWaiting == 1)) 1497 if (ADB_SR_INTR_IS_ON) { /* wait for "interrupt" */ 1498 adb_intr_IIsi(); /* go process it */ 1499 if (adb_polling) 1500 adb_soft_intr(); 1501 } 1502 1503 return 0; 1504 } /* send_adb_IIsi */ 1505 1506 /* 1507 * adb_pass_up is called by the interrupt-time routines. 1508 * It takes the raw packet data that was received from the 1509 * device and puts it into the queue that the upper half 1510 * processes. It then signals for a soft ADB interrupt which 1511 * will eventually call the upper half routine (adb_soft_intr). 1512 * 1513 * If in->unsol is 0, then this is either the notification 1514 * that the packet was sent (on a LISTEN, for example), or the 1515 * response from the device (on a TALK). The completion routine 1516 * is called only if the user specified one. 1517 * 1518 * If in->unsol is 1, then this packet was unsolicited and 1519 * so we look up the device in the ADB device table to determine 1520 * what it's default service routine is. 1521 * 1522 * If in->ack_only is 1, then we really only need to call 1523 * the completion routine, so don't do any other stuff. 1524 * 1525 * Note that in->data contains the packet header AND data, 1526 * while adbInbound[]->data contains ONLY data. 1527 * 1528 * Note: Called only at interrupt time. Assumes this. 1529 */ 1530 void 1531 adb_pass_up(struct adbCommand *in) 1532 { 1533 int start = 0, len = 0, cmd = 0; 1534 ADBDataBlock block; 1535 1536 /* temp for testing */ 1537 /*u_char *buffer = 0;*/ 1538 /*u_char *compdata = 0;*/ 1539 /*u_char *comprout = 0;*/ 1540 1541 if (adbInCount >= ADB_QUEUE) { 1542 #ifdef ADB_DEBUG 1543 if (adb_debug) 1544 printf_intr("adb: ring buffer overflow\n"); 1545 #endif 1546 return; 1547 } 1548 1549 if (in->ack_only) { 1550 len = in->data[0]; 1551 cmd = in->cmd; 1552 start = 0; 1553 } else { 1554 switch (adbHardware) { 1555 case ADB_HW_II: 1556 cmd = in->data[1]; 1557 if (in->data[0] < 2) 1558 len = 0; 1559 else 1560 len = in->data[0]-1; 1561 start = 1; 1562 break; 1563 1564 case ADB_HW_IISI: 1565 case ADB_HW_CUDA: 1566 /* If it's unsolicited, accept only ADB data for now */ 1567 if (in->unsol) 1568 if (0 != in->data[2]) 1569 return; 1570 cmd = in->data[4]; 1571 if (in->data[0] < 5) 1572 len = 0; 1573 else 1574 len = in->data[0]-4; 1575 start = 4; 1576 break; 1577 1578 case ADB_HW_PB: 1579 cmd = in->data[1]; 1580 if (in->data[0] < 2) 1581 len = 0; 1582 else 1583 len = in->data[0]-1; 1584 start = 1; 1585 break; 1586 1587 case ADB_HW_UNKNOWN: 1588 return; 1589 } 1590 1591 /* Make sure there is a valid device entry for this device */ 1592 if (in->unsol) { 1593 /* ignore unsolicited data during adbreinit */ 1594 if (adbStarting) 1595 return; 1596 /* get device's comp. routine and data area */ 1597 if (-1 == get_adb_info(&block, ((cmd & 0xf0) >> 4))) 1598 return; 1599 } 1600 } 1601 1602 /* 1603 * If this is an unsolicited packet, we need to fill in 1604 * some info so adb_soft_intr can process this packet 1605 * properly. If it's not unsolicited, then use what 1606 * the caller sent us. 1607 */ 1608 if (in->unsol) { 1609 adbInbound[adbInTail].compRout = (void *)block.dbServiceRtPtr; 1610 adbInbound[adbInTail].compData = (void *)block.dbDataAreaAddr; 1611 adbInbound[adbInTail].saveBuf = (void *)adbInbound[adbInTail].data; 1612 } else { 1613 adbInbound[adbInTail].compRout = (void *)in->compRout; 1614 adbInbound[adbInTail].compData = (void *)in->compData; 1615 adbInbound[adbInTail].saveBuf = (void *)in->saveBuf; 1616 } 1617 1618 #ifdef ADB_DEBUG 1619 if (adb_debug && in->data[1] == 2) 1620 printf_intr("adb: caught error\n"); 1621 #endif 1622 1623 /* copy the packet data over */ 1624 /* 1625 * TO DO: If the *_intr routines fed their incoming data 1626 * directly into an adbCommand struct, which is passed to 1627 * this routine, then we could eliminate this copy. 1628 */ 1629 memcpy(adbInbound[adbInTail].data + 1, in->data + start + 1, len); 1630 adbInbound[adbInTail].data[0] = len; 1631 adbInbound[adbInTail].cmd = cmd; 1632 1633 adbInCount++; 1634 if (++adbInTail >= ADB_QUEUE) 1635 adbInTail = 0; 1636 1637 /* 1638 * If the debugger is running, call upper half manually. 1639 * Otherwise, trigger a soft interrupt to handle the rest later. 1640 */ 1641 if (adb_polling) 1642 adb_soft_intr(); 1643 else 1644 setsoftadb(); 1645 1646 return; 1647 } 1648 1649 1650 /* 1651 * Called to process the packets after they have been 1652 * placed in the incoming queue. 1653 * 1654 */ 1655 void 1656 adb_soft_intr(void) 1657 { 1658 int s; 1659 int cmd = 0; 1660 u_char *buffer = 0; 1661 u_char *comprout = 0; 1662 u_char *compdata = 0; 1663 1664 #if 0 1665 s = splhigh(); 1666 printf_intr("sr: %x\n", (s & 0x0700)); 1667 splx(s); 1668 #endif 1669 1670 /*delay(2*ADB_DELAY);*/ 1671 1672 while (adbInCount) { 1673 #ifdef ADB_DEBUG 1674 if (adb_debug & 0x80) 1675 printf_intr("%x %x %x ", 1676 adbInCount, adbInHead, adbInTail); 1677 #endif 1678 /* get the data we need from the queue */ 1679 buffer = adbInbound[adbInHead].saveBuf; 1680 comprout = adbInbound[adbInHead].compRout; 1681 compdata = adbInbound[adbInHead].compData; 1682 cmd = adbInbound[adbInHead].cmd; 1683 1684 /* copy over data to data area if it's valid */ 1685 /* 1686 * Note that for unsol packets we don't want to copy the 1687 * data anywhere, so buffer was already set to 0. 1688 * For ack_only buffer was set to 0, so don't copy. 1689 */ 1690 if (buffer) 1691 memcpy(buffer, adbInbound[adbInHead].data, 1692 adbInbound[adbInHead].data[0] + 1); 1693 1694 #ifdef ADB_DEBUG 1695 if (adb_debug & 0x80) { 1696 printf_intr("%p %p %p %x ", 1697 buffer, comprout, compdata, (short)cmd); 1698 printf_intr("buf: "); 1699 print_single(adbInbound[adbInHead].data); 1700 } 1701 #endif 1702 1703 /* call default completion routine if it's valid */ 1704 if (comprout) { 1705 #ifdef __NetBSD__ 1706 asm(" movml #0xffff,sp@- | save all registers 1707 movl %0,a2 | compdata 1708 movl %1,a1 | comprout 1709 movl %2,a0 | buffer 1710 movl %3,d0 | cmd 1711 jbsr a1@ | go call the routine 1712 movml sp@+,#0xffff | restore all registers" 1713 : 1714 : "g"(compdata), "g"(comprout), 1715 "g"(buffer), "g"(cmd) 1716 : "d0", "a0", "a1", "a2"); 1717 #else /* for macos based testing */ 1718 asm 1719 { 1720 movem.l a0/a1/a2/d0, -(a7) 1721 move.l compdata, a2 1722 move.l comprout, a1 1723 move.l buffer, a0 1724 move.w cmd, d0 1725 jsr(a1) 1726 movem.l(a7)+, d0/a2/a1/a0 1727 } 1728 #endif 1729 } 1730 1731 s = splhigh(); 1732 adbInCount--; 1733 if (++adbInHead >= ADB_QUEUE) 1734 adbInHead = 0; 1735 splx(s); 1736 1737 } 1738 return; 1739 } 1740 1741 1742 /* 1743 * This is my version of the ADBOp routine. It mainly just calls the 1744 * hardware-specific routine. 1745 * 1746 * data : pointer to data area to be used by compRout 1747 * compRout : completion routine 1748 * buffer : for LISTEN: points to data to send - MAX 8 data bytes, 1749 * byte 0 = # of bytes 1750 * : for TALK: points to place to save return data 1751 * command : the adb command to send 1752 * result : 0 = success 1753 * : -1 = could not complete 1754 */ 1755 int 1756 adb_op(Ptr buffer, Ptr compRout, Ptr data, short command) 1757 { 1758 int result; 1759 1760 switch (adbHardware) { 1761 case ADB_HW_II: 1762 result = send_adb_II((u_char *)0, (u_char *)buffer, 1763 (void *)compRout, (void *)data, (int)command); 1764 if (result == 0) 1765 return 0; 1766 else 1767 return -1; 1768 break; 1769 1770 case ADB_HW_IISI: 1771 result = send_adb_IIsi((u_char *)0, (u_char *)buffer, 1772 (void *)compRout, (void *)data, (int)command); 1773 /* 1774 * I wish I knew why this delay is needed. It usually needs to 1775 * be here when several commands are sent in close succession, 1776 * especially early in device probes when doing collision 1777 * detection. It must be some race condition. Sigh. - jpw 1778 */ 1779 delay(100); 1780 if (result == 0) 1781 return 0; 1782 else 1783 return -1; 1784 break; 1785 1786 case ADB_HW_PB: 1787 result = pm_adb_op((u_char *)buffer, (void *)compRout, 1788 (void *)data, (int)command); 1789 1790 if (result == 0) 1791 return 0; 1792 else 1793 return -1; 1794 break; 1795 1796 case ADB_HW_CUDA: 1797 result = send_adb_cuda((u_char *)0, (u_char *)buffer, 1798 (void *)compRout, (void *)data, (int)command); 1799 if (result == 0) 1800 return 0; 1801 else 1802 return -1; 1803 break; 1804 1805 case ADB_HW_UNKNOWN: 1806 default: 1807 return -1; 1808 } 1809 } 1810 1811 1812 /* 1813 * adb_hw_setup 1814 * This routine sets up the possible machine specific hardware 1815 * config (mainly VIA settings) for the various models. 1816 */ 1817 void 1818 adb_hw_setup(void) 1819 { 1820 volatile int i; 1821 u_char send_string[ADB_MAX_MSG_LENGTH]; 1822 1823 switch (adbHardware) { 1824 case ADB_HW_II: 1825 via_reg(VIA1, vDirB) |= 0x30; /* register B bits 4 and 5: 1826 * outputs */ 1827 via_reg(VIA1, vDirB) &= 0xf7; /* register B bit 3: input */ 1828 via_reg(VIA1, vACR) &= ~vSR_OUT; /* make sure SR is set 1829 * to IN (II, IIsi) */ 1830 adbActionState = ADB_ACTION_IDLE; /* used by all types of 1831 * hardware (II, IIsi) */ 1832 adbBusState = ADB_BUS_IDLE; /* this var. used in II-series 1833 * code only */ 1834 via_reg(VIA1, vIER) = 0x84; /* make sure VIA interrupts 1835 * are on (II, IIsi) */ 1836 ADB_SET_STATE_IDLE_II(); /* set ADB bus state to idle */ 1837 1838 ADB_VIA_CLR_INTR(); /* clear interrupt */ 1839 break; 1840 1841 case ADB_HW_IISI: 1842 via_reg(VIA1, vDirB) |= 0x30; /* register B bits 4 and 5: 1843 * outputs */ 1844 via_reg(VIA1, vDirB) &= 0xf7; /* register B bit 3: input */ 1845 via_reg(VIA1, vACR) &= ~vSR_OUT; /* make sure SR is set 1846 * to IN (II, IIsi) */ 1847 adbActionState = ADB_ACTION_IDLE; /* used by all types of 1848 * hardware (II, IIsi) */ 1849 adbBusState = ADB_BUS_IDLE; /* this var. used in II-series 1850 * code only */ 1851 via_reg(VIA1, vIER) = 0x84; /* make sure VIA interrupts 1852 * are on (II, IIsi) */ 1853 ADB_SET_STATE_IDLE_IISI(); /* set ADB bus state to idle */ 1854 1855 /* get those pesky clock ticks we missed while booting */ 1856 for (i = 0; i < 30; i++) { 1857 delay(ADB_DELAY); 1858 adb_hw_setup_IIsi(send_string); 1859 #ifdef ADB_DEBUG 1860 if (adb_debug) { 1861 printf_intr("adb: cleanup: "); 1862 print_single(send_string); 1863 } 1864 #endif 1865 delay(ADB_DELAY); 1866 if (ADB_INTR_IS_OFF) 1867 break; 1868 } 1869 break; 1870 1871 case ADB_HW_PB: 1872 /* 1873 * XXX - really PM_VIA_CLR_INTR - should we put it in 1874 * pm_direct.h? 1875 */ 1876 via_reg(VIA1, vIFR) = 0x90; /* clear interrupt */ 1877 break; 1878 1879 case ADB_HW_CUDA: 1880 via_reg(VIA1, vDirB) |= 0x30; /* register B bits 4 and 5: 1881 * outputs */ 1882 via_reg(VIA1, vDirB) &= 0xf7; /* register B bit 3: input */ 1883 via_reg(VIA1, vACR) &= ~vSR_OUT; /* make sure SR is set 1884 * to IN */ 1885 via_reg(VIA1, vACR) = (via_reg(VIA1, vACR) | 0x0c) & ~0x10; 1886 adbActionState = ADB_ACTION_IDLE; /* used by all types of 1887 * hardware */ 1888 adbBusState = ADB_BUS_IDLE; /* this var. used in II-series 1889 * code only */ 1890 via_reg(VIA1, vIER) = 0x84; /* make sure VIA interrupts 1891 * are on */ 1892 ADB_SET_STATE_IDLE_CUDA(); /* set ADB bus state to idle */ 1893 1894 /* sort of a device reset */ 1895 i = ADB_SR(); /* clear interrupt */ 1896 ADB_VIA_INTR_DISABLE(); /* no interrupts while clearing */ 1897 ADB_SET_STATE_IDLE_CUDA(); /* reset state to idle */ 1898 delay(ADB_DELAY); 1899 ADB_SET_STATE_TIP(); /* signal start of frame */ 1900 delay(ADB_DELAY); 1901 ADB_TOGGLE_STATE_ACK_CUDA(); 1902 delay(ADB_DELAY); 1903 ADB_CLR_STATE_TIP(); 1904 delay(ADB_DELAY); 1905 ADB_SET_STATE_IDLE_CUDA(); /* back to idle state */ 1906 i = ADB_SR(); /* clear interrupt */ 1907 ADB_VIA_INTR_ENABLE(); /* ints ok now */ 1908 break; 1909 1910 case ADB_HW_UNKNOWN: 1911 default: 1912 via_reg(VIA1, vIER) = 0x04; /* turn interrupts off - TO 1913 * DO: turn PB ints off? */ 1914 return; 1915 break; 1916 } 1917 } 1918 1919 1920 /* 1921 * adb_hw_setup_IIsi 1922 * This is sort of a "read" routine that forces the adb hardware through a read cycle 1923 * if there is something waiting. This helps "clean up" any commands that may have gotten 1924 * stuck or stopped during the boot process. 1925 * 1926 */ 1927 void 1928 adb_hw_setup_IIsi(u_char * buffer) 1929 { 1930 int i; 1931 int dummy; 1932 int s; 1933 long my_time; 1934 int endofframe; 1935 1936 delay(ADB_DELAY); 1937 1938 i = 1; /* skip over [0] */ 1939 s = splhigh(); /* block ALL interrupts while we are working */ 1940 ADB_SET_SR_INPUT(); /* make sure SR is set to IN */ 1941 ADB_VIA_INTR_DISABLE(); /* disable ADB interrupt on IIs. */ 1942 /* this is required, especially on faster machines */ 1943 delay(ADB_DELAY); 1944 1945 if (ADB_INTR_IS_ON) { 1946 ADB_SET_STATE_ACTIVE(); /* signal start of data frame */ 1947 1948 endofframe = 0; 1949 while (0 == endofframe) { 1950 /* 1951 * Poll for ADB interrupt and watch for timeout. 1952 * If time out, keep going in hopes of not hanging 1953 * the ADB chip - I think 1954 */ 1955 my_time = ADB_DELAY * 5; 1956 while ((ADB_SR_INTR_IS_OFF) && (my_time-- > 0)) 1957 dummy = via_reg(VIA1, vBufB); 1958 1959 buffer[i++] = ADB_SR(); /* reset interrupt flag by 1960 * reading vSR */ 1961 /* 1962 * Perhaps put in a check here that ignores all data 1963 * after the first ADB_MAX_MSG_LENGTH bytes ??? 1964 */ 1965 if (ADB_INTR_IS_OFF) /* check for end of frame */ 1966 endofframe = 1; 1967 1968 ADB_SET_STATE_ACKON(); /* send ACK to ADB chip */ 1969 delay(ADB_DELAY); /* delay */ 1970 ADB_SET_STATE_ACKOFF(); /* send ACK to ADB chip */ 1971 } 1972 ADB_SET_STATE_INACTIVE(); /* signal end of frame and 1973 * delay */ 1974 1975 /* probably don't need to delay this long */ 1976 delay(ADB_DELAY); 1977 } 1978 buffer[0] = --i; /* [0] is length of message */ 1979 ADB_VIA_INTR_ENABLE(); /* enable ADB interrupt on IIs. */ 1980 splx(s); /* restore interrupts */ 1981 1982 return; 1983 } /* adb_hw_setup_IIsi */ 1984 1985 1986 1987 /* 1988 * adb_reinit sets up the adb stuff 1989 * 1990 */ 1991 void 1992 adb_reinit(void) 1993 { 1994 u_char send_string[ADB_MAX_MSG_LENGTH]; 1995 ADBDataBlock data; /* temp. holder for getting device info */ 1996 volatile int i, x; 1997 int s; 1998 int command; 1999 int result; 2000 int saveptr; /* point to next free relocation address */ 2001 int device; 2002 int nonewtimes; /* times thru loop w/o any new devices */ 2003 2004 /* Make sure we are not interrupted while building the table. */ 2005 if (adbHardware != ADB_HW_PB) /* ints must be on for PB? */ 2006 s = splhigh(); 2007 else 2008 s = 0; /* XXX shut the compiler up*/ 2009 2010 ADBNumDevices = 0; /* no devices yet */ 2011 2012 /* Let intr routines know we are running reinit */ 2013 adbStarting = 1; 2014 2015 /* 2016 * Initialize the ADB table. For now, we'll always use the same table 2017 * that is defined at the beginning of this file - no mallocs. 2018 */ 2019 for (i = 0; i < 16; i++) 2020 ADBDevTable[i].devType = 0; 2021 2022 adb_setup_hw_type(); /* setup hardware type */ 2023 2024 adb_hw_setup(); /* init the VIA bits and hard reset ADB */ 2025 2026 delay(1000); 2027 2028 /* send an ADB reset first */ 2029 adb_op_sync((Ptr)0, (Ptr)0, (Ptr)0, (short)0x00); 2030 delay(3000); 2031 2032 /* 2033 * Probe for ADB devices. Probe devices 1-15 quickly to determine 2034 * which device addresses are in use and which are free. For each 2035 * address that is in use, move the device at that address to a higher 2036 * free address. Continue doing this at that address until no device 2037 * responds at that address. Then move the last device that was moved 2038 * back to the original address. Do this for the remaining addresses 2039 * that we determined were in use. 2040 * 2041 * When finished, do this entire process over again with the updated 2042 * list of in use addresses. Do this until no new devices have been 2043 * found in 20 passes though the in use address list. (This probably 2044 * seems long and complicated, but it's the best way to detect multiple 2045 * devices at the same address - sometimes it takes a couple of tries 2046 * before the collision is detected.) 2047 */ 2048 2049 /* initial scan through the devices */ 2050 for (i = 1; i < 16; i++) { 2051 command = (int)(0x0f | ((int)(i & 0x000f) << 4)); /* talk R3 */ 2052 result = adb_op_sync((Ptr)send_string, (Ptr)0, 2053 (Ptr)0, (short)command); 2054 if (0x00 != send_string[0]) { /* anything come back ?? */ 2055 ADBDevTable[++ADBNumDevices].devType = 2056 (int)(send_string[2]); 2057 ADBDevTable[ADBNumDevices].origAddr = i; 2058 ADBDevTable[ADBNumDevices].currentAddr = i; 2059 ADBDevTable[ADBNumDevices].DataAreaAddr = 2060 (long)0; 2061 ADBDevTable[ADBNumDevices].ServiceRtPtr = (void *)0; 2062 pm_check_adb_devices(i); /* tell pm driver device 2063 * is here */ 2064 } 2065 } 2066 2067 /* find highest unused address */ 2068 for (saveptr = 15; saveptr > 0; saveptr--) 2069 if (-1 == get_adb_info(&data, saveptr)) 2070 break; 2071 2072 if (saveptr == 0) /* no free addresses??? */ 2073 saveptr = 15; 2074 2075 #ifdef ADB_DEBUG 2076 if (adb_debug & 0x80) { 2077 printf_intr("first free is: 0x%02x\n", saveptr); 2078 printf_intr("devices: %i\n", ADBNumDevices); 2079 } 2080 #endif 2081 2082 nonewtimes = 0; /* no loops w/o new devices */ 2083 while (nonewtimes++ < 11) { 2084 for (i = 1; i <= ADBNumDevices; i++) { 2085 device = ADBDevTable[i].currentAddr; 2086 #ifdef ADB_DEBUG 2087 if (adb_debug & 0x80) 2088 printf_intr("moving device 0x%02x to 0x%02x " 2089 "(index 0x%02x) ", device, saveptr, i); 2090 #endif 2091 2092 /* send TALK R3 to address */ 2093 command = (int)(0x0f | ((int)(device & 0x000f) << 4)); 2094 adb_op_sync((Ptr)send_string, (Ptr)0, 2095 (Ptr)0, (short)command); 2096 2097 /* move device to higher address */ 2098 command = (int)(0x0b | ((int)(device & 0x000f) << 4)); 2099 send_string[0] = 2; 2100 send_string[1] = (u_char)(saveptr | 0x60); 2101 send_string[2] = 0xfe; 2102 adb_op_sync((Ptr)send_string, (Ptr)0, 2103 (Ptr)0, (short)command); 2104 delay(500); 2105 2106 /* send TALK R3 - anything at old address? */ 2107 command = (int)(0x0f | ((int)(device & 0x000f) << 4)); 2108 result = adb_op_sync((Ptr)send_string, (Ptr)0, 2109 (Ptr)0, (short)command); 2110 if (send_string[0] != 0) { 2111 /* new device found */ 2112 /* update data for previously moved device */ 2113 ADBDevTable[i].currentAddr = saveptr; 2114 #ifdef ADB_DEBUG 2115 if (adb_debug & 0x80) 2116 printf_intr("old device at index %i\n",i); 2117 #endif 2118 /* add new device in table */ 2119 #ifdef ADB_DEBUG 2120 if (adb_debug & 0x80) 2121 printf_intr("new device found\n"); 2122 #endif 2123 ADBDevTable[++ADBNumDevices].devType = 2124 (int)(send_string[2]); 2125 ADBDevTable[ADBNumDevices].origAddr = device; 2126 ADBDevTable[ADBNumDevices].currentAddr = device; 2127 /* These will be set correctly in adbsys.c */ 2128 /* Until then, unsol. data will be ignored. */ 2129 ADBDevTable[ADBNumDevices].DataAreaAddr = 2130 (long)0; 2131 ADBDevTable[ADBNumDevices].ServiceRtPtr = 2132 (void *)0; 2133 /* find next unused address */ 2134 for (x = saveptr; x > 0; x--) 2135 if (-1 == get_adb_info(&data, x)) { 2136 saveptr = x; 2137 break; 2138 } 2139 #ifdef ADB_DEBUG 2140 if (adb_debug & 0x80) 2141 printf_intr("new free is 0x%02x\n", 2142 saveptr); 2143 #endif 2144 nonewtimes = 0; 2145 /* tell pm driver device is here */ 2146 pm_check_adb_devices(device); 2147 } else { 2148 #ifdef ADB_DEBUG 2149 if (adb_debug & 0x80) 2150 printf_intr("moving back...\n"); 2151 #endif 2152 /* move old device back */ 2153 command = (int)(0x0b | ((int)(saveptr & 0x000f) << 4)); 2154 send_string[0] = 2; 2155 send_string[1] = (u_char)(device | 0x60); 2156 send_string[2] = 0xfe; 2157 adb_op_sync((Ptr)send_string, (Ptr)0, 2158 (Ptr)0, (short)command); 2159 delay(1000); 2160 } 2161 } 2162 } 2163 2164 #ifdef ADB_DEBUG 2165 if (adb_debug) { 2166 for (i = 1; i <= ADBNumDevices; i++) { 2167 x = get_ind_adb_info(&data, i); 2168 if (x != -1) 2169 printf_intr("index 0x%x, addr 0x%x, type 0x%hx\n", 2170 i, x, data.devType); 2171 } 2172 } 2173 #endif 2174 2175 #ifndef MRG_ADB 2176 /* enable the programmer's switch, if we have one */ 2177 adb_prog_switch_enable(); 2178 #endif 2179 2180 #ifdef ADB_DEBUG 2181 if (adb_debug) { 2182 if (0 == ADBNumDevices) /* tell user if no devices found */ 2183 printf_intr("adb: no devices found\n"); 2184 } 2185 #endif 2186 2187 adbStarting = 0; /* not starting anymore */ 2188 #ifdef ADB_DEBUG 2189 if (adb_debug) 2190 printf_intr("adb: ADBReInit complete\n"); 2191 #endif 2192 2193 if (adbHardware == ADB_HW_CUDA) 2194 timeout((void *)adb_cuda_tickle, 0, ADB_TICKLE_TICKS); 2195 2196 if (adbHardware != ADB_HW_PB) /* ints must be on for PB? */ 2197 splx(s); 2198 2199 return; 2200 } 2201 2202 2203 /* 2204 * adb_comp_exec 2205 * This is a general routine that calls the completion routine if there is one. 2206 * NOTE: This routine is now only used by pm_direct.c 2207 * All the code in this file (adb_direct.c) uses 2208 * the adb_pass_up routine now. 2209 */ 2210 void 2211 adb_comp_exec(void) 2212 { 2213 if ((long)0 != adbCompRout) /* don't call if empty return location */ 2214 #ifdef __NetBSD__ 2215 asm(" movml #0xffff,sp@- | save all registers 2216 movl %0,a2 | adbCompData 2217 movl %1,a1 | adbCompRout 2218 movl %2,a0 | adbBuffer 2219 movl %3,d0 | adbWaitingCmd 2220 jbsr a1@ | go call the routine 2221 movml sp@+,#0xffff | restore all registers" 2222 : 2223 : "g"(adbCompData), "g"(adbCompRout), 2224 "g"(adbBuffer), "g"(adbWaitingCmd) 2225 : "d0", "a0", "a1", "a2"); 2226 #else /* for Mac OS-based testing */ 2227 asm { 2228 movem.l a0/a1/a2/d0, -(a7) 2229 move.l adbCompData, a2 2230 move.l adbCompRout, a1 2231 move.l adbBuffer, a0 2232 move.w adbWaitingCmd, d0 2233 jsr(a1) 2234 movem.l(a7) +, d0/a2/a1/a0 2235 } 2236 #endif 2237 } 2238 2239 2240 /* 2241 * adb_cmd_result 2242 * 2243 * This routine lets the caller know whether the specified adb command string 2244 * should expect a returned result, such as a TALK command. 2245 * 2246 * returns: 0 if a result should be expected 2247 * 1 if a result should NOT be expected 2248 */ 2249 int 2250 adb_cmd_result(u_char *in) 2251 { 2252 switch (adbHardware) { 2253 case ADB_HW_II: 2254 /* was it an ADB talk command? */ 2255 if ((in[1] & 0x0c) == 0x0c) 2256 return 0; 2257 return 1; 2258 2259 case ADB_HW_IISI: 2260 case ADB_HW_CUDA: 2261 /* was it an ADB talk command? */ 2262 if ((in[1] == 0x00) && ((in[2] & 0x0c) == 0x0c)) 2263 return 0; 2264 /* was it an RTC/PRAM read date/time? */ 2265 if ((in[1] == 0x01) && (in[2] == 0x03)) 2266 return 0; 2267 return 1; 2268 2269 case ADB_HW_PB: 2270 return 1; 2271 2272 case ADB_HW_UNKNOWN: 2273 default: 2274 return 1; 2275 } 2276 } 2277 2278 2279 /* 2280 * adb_cmd_extra 2281 * 2282 * This routine lets the caller know whether the specified adb command string 2283 * may have extra data appended to the end of it, such as a LISTEN command. 2284 * 2285 * returns: 0 if extra data is allowed 2286 * 1 if extra data is NOT allowed 2287 */ 2288 int 2289 adb_cmd_extra(u_char *in) 2290 { 2291 switch (adbHardware) { 2292 case ADB_HW_II: 2293 if ((in[1] & 0x0c) == 0x08) /* was it a listen command? */ 2294 return 0; 2295 return 1; 2296 2297 case ADB_HW_IISI: 2298 case ADB_HW_CUDA: 2299 /* 2300 * TO DO: support needs to be added to recognize RTC and PRAM 2301 * commands 2302 */ 2303 if ((in[2] & 0x0c) == 0x08) /* was it a listen command? */ 2304 return 0; 2305 /* add others later */ 2306 return 1; 2307 2308 case ADB_HW_PB: 2309 return 1; 2310 2311 case ADB_HW_UNKNOWN: 2312 default: 2313 return 1; 2314 } 2315 } 2316 2317 2318 /* 2319 * adb_op_sync 2320 * 2321 * This routine does exactly what the adb_op routine does, except that after 2322 * the adb_op is called, it waits until the return value is present before 2323 * returning. 2324 * 2325 * NOTE: The user specified compRout is ignored, since this routine specifies 2326 * it's own to adb_op, which is why you really called this in the first place 2327 * anyway. 2328 */ 2329 int 2330 adb_op_sync(Ptr buffer, Ptr compRout, Ptr data, short command) 2331 { 2332 int result; 2333 volatile int flag = 0; 2334 2335 result = adb_op(buffer, (void *)adb_op_comprout, 2336 (void *)&flag, command); /* send command */ 2337 if (result == 0) /* send ok? */ 2338 while (0 == flag) 2339 /* wait for compl. routine */; 2340 2341 return result; 2342 } 2343 2344 2345 /* 2346 * adb_op_comprout 2347 * 2348 * This function is used by the adb_op_sync routine so it knows when the 2349 * function is done. 2350 */ 2351 void 2352 adb_op_comprout(void) 2353 { 2354 #ifdef __NetBSD__ 2355 asm("movw #1,a2@ | update flag value"); 2356 #else /* for macos based testing */ 2357 asm { 2358 move.w #1,(a2) } /* update flag value */ 2359 #endif 2360 } 2361 2362 void 2363 adb_setup_hw_type(void) 2364 { 2365 long response; 2366 2367 response = mac68k_machine.machineid; 2368 2369 /* 2370 * Determine what type of ADB hardware we are running on. 2371 */ 2372 switch (response) { 2373 case MACH_MACC610: /* Centris 610 */ 2374 case MACH_MACC650: /* Centris 650 */ 2375 case MACH_MACII: /* II */ 2376 case MACH_MACIICI: /* IIci */ 2377 case MACH_MACIICX: /* IIcx */ 2378 case MACH_MACIIX: /* IIx */ 2379 case MACH_MACQ610: /* Quadra 610 */ 2380 case MACH_MACQ650: /* Quadra 650 */ 2381 case MACH_MACQ700: /* Quadra 700 */ 2382 case MACH_MACQ800: /* Quadra 800 */ 2383 case MACH_MACSE30: /* SE/30 */ 2384 adbHardware = ADB_HW_II; 2385 #ifdef ADB_DEBUG 2386 if (adb_debug) 2387 printf_intr("adb: using II series hardware support\n"); 2388 #endif 2389 break; 2390 2391 case MACH_MACCLASSICII: /* Classic II */ 2392 case MACH_MACLCII: /* LC II, Performa 400/405/430 */ 2393 case MACH_MACLCIII: /* LC III, Performa 450 */ 2394 case MACH_MACIISI: /* IIsi */ 2395 case MACH_MACIIVI: /* IIvi */ 2396 case MACH_MACIIVX: /* IIvx */ 2397 case MACH_MACP460: /* Performa 460/465/467 */ 2398 case MACH_MACP600: /* Performa 600 */ 2399 case MACH_MACQ900: /* Quadra 900 - XXX not sure */ 2400 case MACH_MACQ950: /* Quadra 950 - XXX not sure */ 2401 adbHardware = ADB_HW_IISI; 2402 #ifdef ADB_DEBUG 2403 if (adb_debug) 2404 printf_intr("adb: using IIsi series hardware support\n"); 2405 #endif 2406 break; 2407 2408 case MACH_MACPB140: /* PowerBook 140 */ 2409 case MACH_MACPB145: /* PowerBook 145 */ 2410 case MACH_MACPB150: /* PowerBook 150 */ 2411 case MACH_MACPB160: /* PowerBook 160 */ 2412 case MACH_MACPB165: /* PowerBook 165 */ 2413 case MACH_MACPB165C: /* PowerBook 165c */ 2414 case MACH_MACPB170: /* PowerBook 170 */ 2415 case MACH_MACPB180: /* PowerBook 180 */ 2416 case MACH_MACPB180C: /* PowerBook 180c */ 2417 adbHardware = ADB_HW_PB; 2418 pm_setup_adb(); 2419 #ifdef ADB_DEBUG 2420 if (adb_debug) 2421 printf_intr("adb: using PowerBook 100-series hardware support\n"); 2422 #endif 2423 break; 2424 2425 case MACH_MACPB210: /* PowerBook Duo 210 */ 2426 case MACH_MACPB230: /* PowerBook Duo 230 */ 2427 case MACH_MACPB250: /* PowerBook Duo 250 */ 2428 case MACH_MACPB270: /* PowerBook Duo 270 */ 2429 case MACH_MACPB280: /* PowerBook Duo 280 */ 2430 case MACH_MACPB280C: /* PowerBook Duo 280c */ 2431 case MACH_MACPB500: /* PowerBook 500 series */ 2432 adbHardware = ADB_HW_PB; 2433 pm_setup_adb(); 2434 #ifdef ADB_DEBUG 2435 if (adb_debug) 2436 printf_intr("adb: using PowerBook Duo-series and PowerBook 500-series hardware support\n"); 2437 #endif 2438 break; 2439 2440 case MACH_MACC660AV: /* Centris 660AV */ 2441 case MACH_MACCCLASSIC: /* Color Classic */ 2442 case MACH_MACCCLASSICII: /* Color Classic II */ 2443 case MACH_MACLC475: /* LC 475, Performa 475/476 */ 2444 case MACH_MACLC475_33: /* Clock-chipped 47x */ 2445 case MACH_MACLC520: /* LC 520 */ 2446 case MACH_MACLC575: /* LC 575, Performa 575/577/578 */ 2447 case MACH_MACP550: /* LC 550, Performa 550 */ 2448 case MACH_MACP580: /* Performa 580/588 */ 2449 case MACH_MACQ605: /* Quadra 605 */ 2450 case MACH_MACQ605_33: /* Clock-chipped Quadra 605 */ 2451 case MACH_MACQ630: /* LC 630, Performa 630, Quadra 630 */ 2452 case MACH_MACQ840AV: /* Quadra 840AV */ 2453 adbHardware = ADB_HW_CUDA; 2454 #ifdef ADB_DEBUG 2455 if (adb_debug) 2456 printf_intr("adb: using Cuda series hardware support\n"); 2457 #endif 2458 break; 2459 default: 2460 adbHardware = ADB_HW_UNKNOWN; 2461 #ifdef ADB_DEBUG 2462 if (adb_debug) { 2463 printf_intr("adb: hardware type unknown for this machine\n"); 2464 printf_intr("adb: ADB support is disabled\n"); 2465 } 2466 #endif 2467 break; 2468 } 2469 2470 /* 2471 * Determine whether this machine has ADB based soft power. 2472 */ 2473 switch (response) { 2474 case MACH_MACCCLASSIC: /* Color Classic */ 2475 case MACH_MACCCLASSICII: /* Color Classic II */ 2476 case MACH_MACIISI: /* IIsi */ 2477 case MACH_MACIIVI: /* IIvi */ 2478 case MACH_MACIIVX: /* IIvx */ 2479 case MACH_MACLC520: /* LC 520 */ 2480 case MACH_MACLC575: /* LC 575, Performa 575/577/578 */ 2481 case MACH_MACP550: /* LC 550, Performa 550 */ 2482 case MACH_MACP580: /* Performa 580/588 */ 2483 case MACH_MACP600: /* Performa 600 */ 2484 case MACH_MACQ630: /* LC 630, Performa 630, Quadra 630 */ 2485 case MACH_MACQ840AV: /* Quadra 840AV */ 2486 case MACH_MACQ900: /* Quadra 900 - XXX not sure */ 2487 case MACH_MACQ950: /* Quadra 950 - XXX not sure */ 2488 adbSoftPower = 1; 2489 break; 2490 } 2491 } 2492 2493 int 2494 count_adbs(void) 2495 { 2496 int i; 2497 int found; 2498 2499 found = 0; 2500 2501 for (i = 1; i < 16; i++) 2502 if (0 != ADBDevTable[i].devType) 2503 found++; 2504 2505 return found; 2506 } 2507 2508 int 2509 get_ind_adb_info(ADBDataBlock * info, int index) 2510 { 2511 if ((index < 1) || (index > 15)) /* check range 1-15 */ 2512 return (-1); 2513 2514 #ifdef ADB_DEBUG 2515 if (adb_debug & 0x80) 2516 printf_intr("index 0x%x devType is: 0x%x\n", index, 2517 ADBDevTable[index].devType); 2518 #endif 2519 if (0 == ADBDevTable[index].devType) /* make sure it's a valid entry */ 2520 return (-1); 2521 2522 info->devType = (unsigned char)(ADBDevTable[index].devType); 2523 info->origADBAddr = (unsigned char)(ADBDevTable[index].origAddr); 2524 info->dbServiceRtPtr = (Ptr)ADBDevTable[index].ServiceRtPtr; 2525 info->dbDataAreaAddr = (Ptr)ADBDevTable[index].DataAreaAddr; 2526 2527 return (ADBDevTable[index].currentAddr); 2528 } 2529 2530 int 2531 get_adb_info(ADBDataBlock * info, int adbAddr) 2532 { 2533 int i; 2534 2535 if ((adbAddr < 1) || (adbAddr > 15)) /* check range 1-15 */ 2536 return (-1); 2537 2538 for (i = 1; i < 15; i++) 2539 if (ADBDevTable[i].currentAddr == adbAddr) { 2540 info->devType = (unsigned char)(ADBDevTable[i].devType); 2541 info->origADBAddr = (unsigned char)(ADBDevTable[i].origAddr); 2542 info->dbServiceRtPtr = (Ptr)ADBDevTable[i].ServiceRtPtr; 2543 info->dbDataAreaAddr = ADBDevTable[i].DataAreaAddr; 2544 return 0; /* found */ 2545 } 2546 2547 return (-1); /* not found */ 2548 } 2549 2550 int 2551 set_adb_info(ADBSetInfoBlock * info, int adbAddr) 2552 { 2553 int i; 2554 2555 if ((adbAddr < 1) || (adbAddr > 15)) /* check range 1-15 */ 2556 return (-1); 2557 2558 for (i = 1; i < 15; i++) 2559 if (ADBDevTable[i].currentAddr == adbAddr) { 2560 ADBDevTable[i].ServiceRtPtr = 2561 (void *)(info->siServiceRtPtr); 2562 ADBDevTable[i].DataAreaAddr = info->siDataAreaAddr; 2563 return 0; /* found */ 2564 } 2565 2566 return (-1); /* not found */ 2567 2568 } 2569 2570 #ifndef MRG_ADB 2571 long 2572 mrg_adbintr(void) 2573 { 2574 adb_intr(); 2575 return 1; /* mimic mrg_adbintr in macrom.h just in case */ 2576 } 2577 2578 long 2579 mrg_pmintr(void) 2580 { 2581 pm_intr(); 2582 return 1; /* mimic mrg_pmintr in macrom.h just in case */ 2583 } 2584 2585 /* caller should really use machine-independant version: getPramTime */ 2586 /* this version does pseudo-adb access only */ 2587 int 2588 adb_read_date_time(unsigned long *time) 2589 { 2590 u_char output[ADB_MAX_MSG_LENGTH]; 2591 int result; 2592 volatile int flag = 0; 2593 2594 switch (adbHardware) { 2595 case ADB_HW_II: 2596 return -1; 2597 2598 case ADB_HW_IISI: 2599 output[0] = 0x02; /* 2 byte message */ 2600 output[1] = 0x01; /* to pram/rtc device */ 2601 output[2] = 0x03; /* read date/time */ 2602 result = send_adb_IIsi((u_char *)output, (u_char *)output, 2603 (void *)adb_op_comprout, (int *)&flag, (int)0); 2604 if (result != 0) /* exit if not sent */ 2605 return -1; 2606 2607 while (0 == flag) /* wait for result */ 2608 ; 2609 2610 *time = (long)(*(long *)(output + 1)); 2611 return 0; 2612 2613 case ADB_HW_PB: 2614 return -1; 2615 2616 case ADB_HW_CUDA: 2617 output[0] = 0x02; /* 2 byte message */ 2618 output[1] = 0x01; /* to pram/rtc device */ 2619 output[2] = 0x03; /* read date/time */ 2620 result = send_adb_cuda((u_char *)output, (u_char *)output, 2621 (void *)adb_op_comprout, (void *)&flag, (int)0); 2622 if (result != 0) /* exit if not sent */ 2623 return -1; 2624 2625 while (0 == flag) /* wait for result */ 2626 ; 2627 2628 *time = (long)(*(long *)(output + 1)); 2629 return 0; 2630 2631 case ADB_HW_UNKNOWN: 2632 default: 2633 return -1; 2634 } 2635 } 2636 2637 /* caller should really use machine-independant version: setPramTime */ 2638 /* this version does pseudo-adb access only */ 2639 int 2640 adb_set_date_time(unsigned long time) 2641 { 2642 u_char output[ADB_MAX_MSG_LENGTH]; 2643 int result; 2644 volatile int flag = 0; 2645 2646 switch (adbHardware) { 2647 case ADB_HW_II: 2648 return -1; 2649 2650 case ADB_HW_IISI: 2651 output[0] = 0x06; /* 6 byte message */ 2652 output[1] = 0x01; /* to pram/rtc device */ 2653 output[2] = 0x09; /* set date/time */ 2654 output[3] = (u_char)(time >> 24); 2655 output[4] = (u_char)(time >> 16); 2656 output[5] = (u_char)(time >> 8); 2657 output[6] = (u_char)(time); 2658 result = send_adb_IIsi((u_char *)output, (u_char *)0, 2659 (void *)adb_op_comprout, (void *)&flag, (int)0); 2660 if (result != 0) /* exit if not sent */ 2661 return -1; 2662 2663 while (0 == flag) /* wait for send to finish */ 2664 ; 2665 2666 return 0; 2667 2668 case ADB_HW_PB: 2669 return -1; 2670 2671 case ADB_HW_CUDA: 2672 output[0] = 0x06; /* 6 byte message */ 2673 output[1] = 0x01; /* to pram/rtc device */ 2674 output[2] = 0x09; /* set date/time */ 2675 output[3] = (u_char)(time >> 24); 2676 output[4] = (u_char)(time >> 16); 2677 output[5] = (u_char)(time >> 8); 2678 output[6] = (u_char)(time); 2679 result = send_adb_cuda((u_char *)output, (u_char *)0, 2680 (void *)adb_op_comprout, (void *)&flag, (int)0); 2681 if (result != 0) /* exit if not sent */ 2682 return -1; 2683 2684 while (0 == flag) /* wait for send to finish */ 2685 ; 2686 2687 return 0; 2688 2689 case ADB_HW_UNKNOWN: 2690 default: 2691 return -1; 2692 } 2693 } 2694 2695 2696 int 2697 adb_poweroff(void) 2698 { 2699 u_char output[ADB_MAX_MSG_LENGTH]; 2700 int result; 2701 2702 if (!adbSoftPower) 2703 return -1; 2704 2705 adb_polling = 1; 2706 2707 switch (adbHardware) { 2708 case ADB_HW_IISI: 2709 output[0] = 0x02; /* 2 byte message */ 2710 output[1] = 0x01; /* to pram/rtc/soft-power device */ 2711 output[2] = 0x0a; /* set date/time */ 2712 result = send_adb_IIsi((u_char *)output, (u_char *)0, 2713 (void *)0, (void *)0, (int)0); 2714 if (result != 0) /* exit if not sent */ 2715 return -1; 2716 2717 for (;;); /* wait for power off */ 2718 2719 return 0; 2720 2721 case ADB_HW_PB: 2722 return -1; 2723 2724 case ADB_HW_CUDA: 2725 output[0] = 0x02; /* 2 byte message */ 2726 output[1] = 0x01; /* to pram/rtc/soft-power device */ 2727 output[2] = 0x0a; /* set date/time */ 2728 result = send_adb_cuda((u_char *)output, (u_char *)0, 2729 (void *)0, (void *)0, (int)0); 2730 if (result != 0) /* exit if not sent */ 2731 return -1; 2732 2733 for (;;); /* wait for power off */ 2734 2735 return 0; 2736 2737 case ADB_HW_II: /* II models don't do ADB soft power */ 2738 case ADB_HW_UNKNOWN: 2739 default: 2740 return -1; 2741 } 2742 } 2743 2744 int 2745 adb_prog_switch_enable(void) 2746 { 2747 u_char output[ADB_MAX_MSG_LENGTH]; 2748 int result; 2749 volatile int flag = 0; 2750 2751 switch (adbHardware) { 2752 case ADB_HW_IISI: 2753 output[0] = 0x03; /* 3 byte message */ 2754 output[1] = 0x01; /* to pram/rtc/soft-power device */ 2755 output[2] = 0x1c; /* prog. switch control */ 2756 output[3] = 0x01; /* enable */ 2757 result = send_adb_IIsi((u_char *)output, (u_char *)0, 2758 (void *)adb_op_comprout, (void *)&flag, (int)0); 2759 if (result != 0) /* exit if not sent */ 2760 return -1; 2761 2762 while (0 == flag) /* wait for send to finish */ 2763 ; 2764 2765 return 0; 2766 2767 case ADB_HW_PB: 2768 return -1; 2769 2770 case ADB_HW_II: /* II models don't do prog. switch */ 2771 case ADB_HW_CUDA: /* cuda doesn't do prog. switch TO DO: verify this */ 2772 case ADB_HW_UNKNOWN: 2773 default: 2774 return -1; 2775 } 2776 } 2777 2778 int 2779 adb_prog_switch_disable(void) 2780 { 2781 u_char output[ADB_MAX_MSG_LENGTH]; 2782 int result; 2783 volatile int flag = 0; 2784 2785 switch (adbHardware) { 2786 case ADB_HW_IISI: 2787 output[0] = 0x03; /* 3 byte message */ 2788 output[1] = 0x01; /* to pram/rtc/soft-power device */ 2789 output[2] = 0x1c; /* prog. switch control */ 2790 output[3] = 0x01; /* disable */ 2791 result = send_adb_IIsi((u_char *)output, (u_char *)0, 2792 (void *)adb_op_comprout, (void *)&flag, (int)0); 2793 if (result != 0) /* exit if not sent */ 2794 return -1; 2795 2796 while (0 == flag) /* wait for send to finish */ 2797 ; 2798 2799 return 0; 2800 2801 case ADB_HW_PB: 2802 return -1; 2803 2804 case ADB_HW_II: /* II models don't do prog. switch */ 2805 case ADB_HW_CUDA: /* cuda doesn't do prog. switch */ 2806 case ADB_HW_UNKNOWN: 2807 default: 2808 return -1; 2809 } 2810 } 2811 2812 int 2813 CountADBs(void) 2814 { 2815 return (count_adbs()); 2816 } 2817 2818 void 2819 ADBReInit(void) 2820 { 2821 adb_reinit(); 2822 } 2823 2824 int 2825 GetIndADB(ADBDataBlock * info, int index) 2826 { 2827 return (get_ind_adb_info(info, index)); 2828 } 2829 2830 int 2831 GetADBInfo(ADBDataBlock * info, int adbAddr) 2832 { 2833 return (get_adb_info(info, adbAddr)); 2834 } 2835 2836 int 2837 SetADBInfo(ADBSetInfoBlock * info, int adbAddr) 2838 { 2839 return (set_adb_info(info, adbAddr)); 2840 } 2841 2842 int 2843 ADBOp(Ptr buffer, Ptr compRout, Ptr data, short commandNum) 2844 { 2845 return (adb_op(buffer, compRout, data, commandNum)); 2846 } 2847 2848 #endif 2849
Indexes created Mon Sep 29 21:09:56 GMT 2025