1/* 2 * Miscellaneous Mac68K-specific stuff 3 */ 4 5#include <linux/types.h> 6#include <linux/errno.h> 7#include <linux/miscdevice.h> 8#include <linux/kernel.h> 9#include <linux/delay.h> 10#include <linux/sched.h> 11#include <linux/time.h> 12#include <linux/rtc.h> 13#include <linux/mm.h> 14 15#include <linux/adb.h> 16#include <linux/cuda.h> 17#include <linux/pmu.h> 18 19#include <asm/uaccess.h> 20#include <asm/io.h> 21#include <asm/rtc.h> 22#include <asm/segment.h> 23#include <asm/setup.h> 24#include <asm/macintosh.h> 25#include <asm/mac_via.h> 26#include <asm/mac_oss.h> 27 28#define BOOTINFO_COMPAT_1_0 29#include <asm/bootinfo.h> 30#include <asm/machdep.h> 31 32/* Offset between Unix time (1970-based) and Mac time (1904-based) */ 33 34#define RTC_OFFSET 2082844800 35 36static void (*rom_reset)(void); 37 38#ifdef CONFIG_ADB_CUDA 39static long cuda_read_time(void) 40{ 41 struct adb_request req; 42 long time; 43 44 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0) 45 return 0; 46 while (!req.complete) 47 cuda_poll(); 48 49 time = (req.reply[3] << 24) | (req.reply[4] << 16) 50 | (req.reply[5] << 8) | req.reply[6]; 51 return time - RTC_OFFSET; 52} 53 54static void cuda_write_time(long data) 55{ 56 struct adb_request req; 57 data += RTC_OFFSET; 58 if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, 59 (data >> 24) & 0xFF, (data >> 16) & 0xFF, 60 (data >> 8) & 0xFF, data & 0xFF) < 0) 61 return; 62 while (!req.complete) 63 cuda_poll(); 64} 65 66static __u8 cuda_read_pram(int offset) 67{ 68 struct adb_request req; 69 if (cuda_request(&req, NULL, 4, CUDA_PACKET, CUDA_GET_PRAM, 70 (offset >> 8) & 0xFF, offset & 0xFF) < 0) 71 return 0; 72 while (!req.complete) 73 cuda_poll(); 74 return req.reply[3]; 75} 76 77static void cuda_write_pram(int offset, __u8 data) 78{ 79 struct adb_request req; 80 if (cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_SET_PRAM, 81 (offset >> 8) & 0xFF, offset & 0xFF, data) < 0) 82 return; 83 while (!req.complete) 84 cuda_poll(); 85} 86#else 87#define cuda_read_time() 0 88#define cuda_write_time(n) 89#define cuda_read_pram NULL 90#define cuda_write_pram NULL 91#endif 92 93#ifdef CONFIG_ADB_PMU68K 94static long pmu_read_time(void) 95{ 96 struct adb_request req; 97 long time; 98 99 if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0) 100 return 0; 101 while (!req.complete) 102 pmu_poll(); 103 104 time = (req.reply[1] << 24) | (req.reply[2] << 16) 105 | (req.reply[3] << 8) | req.reply[4]; 106 return time - RTC_OFFSET; 107} 108 109static void pmu_write_time(long data) 110{ 111 struct adb_request req; 112 data += RTC_OFFSET; 113 if (pmu_request(&req, NULL, 5, PMU_SET_RTC, 114 (data >> 24) & 0xFF, (data >> 16) & 0xFF, 115 (data >> 8) & 0xFF, data & 0xFF) < 0) 116 return; 117 while (!req.complete) 118 pmu_poll(); 119} 120 121static __u8 pmu_read_pram(int offset) 122{ 123 struct adb_request req; 124 if (pmu_request(&req, NULL, 3, PMU_READ_NVRAM, 125 (offset >> 8) & 0xFF, offset & 0xFF) < 0) 126 return 0; 127 while (!req.complete) 128 pmu_poll(); 129 return req.reply[3]; 130} 131 132static void pmu_write_pram(int offset, __u8 data) 133{ 134 struct adb_request req; 135 if (pmu_request(&req, NULL, 4, PMU_WRITE_NVRAM, 136 (offset >> 8) & 0xFF, offset & 0xFF, data) < 0) 137 return; 138 while (!req.complete) 139 pmu_poll(); 140} 141#else 142#define pmu_read_time() 0 143#define pmu_write_time(n) 144#define pmu_read_pram NULL 145#define pmu_write_pram NULL 146#endif 147 148#if 0 /* def CONFIG_ADB_MACIISI */ 149extern int maciisi_request(struct adb_request *req, 150 void (*done)(struct adb_request *), int nbytes, ...); 151 152static long maciisi_read_time(void) 153{ 154 struct adb_request req; 155 long time; 156 157 if (maciisi_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME)) 158 return 0; 159 160 time = (req.reply[3] << 24) | (req.reply[4] << 16) 161 | (req.reply[5] << 8) | req.reply[6]; 162 return time - RTC_OFFSET; 163} 164 165static void maciisi_write_time(long data) 166{ 167 struct adb_request req; 168 data += RTC_OFFSET; 169 maciisi_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, 170 (data >> 24) & 0xFF, (data >> 16) & 0xFF, 171 (data >> 8) & 0xFF, data & 0xFF); 172} 173 174static __u8 maciisi_read_pram(int offset) 175{ 176 struct adb_request req; 177 if (maciisi_request(&req, NULL, 4, CUDA_PACKET, CUDA_GET_PRAM, 178 (offset >> 8) & 0xFF, offset & 0xFF)) 179 return 0; 180 return req.reply[3]; 181} 182 183static void maciisi_write_pram(int offset, __u8 data) 184{ 185 struct adb_request req; 186 maciisi_request(&req, NULL, 5, CUDA_PACKET, CUDA_SET_PRAM, 187 (offset >> 8) & 0xFF, offset & 0xFF, data); 188} 189#else 190#define maciisi_read_time() 0 191#define maciisi_write_time(n) 192#define maciisi_read_pram NULL 193#define maciisi_write_pram NULL 194#endif 195 196/* 197 * VIA PRAM/RTC access routines 198 * 199 * Must be called with interrupts disabled and 200 * the RTC should be enabled. 201 */ 202 203static __u8 via_pram_readbyte(void) 204{ 205 int i,reg; 206 __u8 data; 207 208 reg = via1[vBufB] & ~VIA1B_vRTCClk; 209 210 /* Set the RTC data line to be an input. */ 211 212 via1[vDirB] &= ~VIA1B_vRTCData; 213 214 /* The bits of the byte come out in MSB order */ 215 216 data = 0; 217 for (i = 0 ; i < 8 ; i++) { 218 via1[vBufB] = reg; 219 via1[vBufB] = reg | VIA1B_vRTCClk; 220 data = (data << 1) | (via1[vBufB] & VIA1B_vRTCData); 221 } 222 223 /* Return RTC data line to output state */ 224 225 via1[vDirB] |= VIA1B_vRTCData; 226 227 return data; 228} 229 230static void via_pram_writebyte(__u8 data) 231{ 232 int i,reg,bit; 233 234 reg = via1[vBufB] & ~(VIA1B_vRTCClk | VIA1B_vRTCData); 235 236 /* The bits of the byte go in in MSB order */ 237 238 for (i = 0 ; i < 8 ; i++) { 239 bit = data & 0x80? 1 : 0; 240 data <<= 1; 241 via1[vBufB] = reg | bit; 242 via1[vBufB] = reg | bit | VIA1B_vRTCClk; 243 } 244} 245 246/* 247 * Execute a VIA PRAM/RTC command. For read commands 248 * data should point to a one-byte buffer for the 249 * resulting data. For write commands it should point 250 * to the data byte to for the command. 251 * 252 * This function disables all interrupts while running. 253 */ 254 255static void via_pram_command(int command, __u8 *data) 256{ 257 unsigned long flags; 258 int is_read; 259 260 local_irq_save(flags); 261 262 /* Enable the RTC and make sure the strobe line is high */ 263 264 via1[vBufB] = (via1[vBufB] | VIA1B_vRTCClk) & ~VIA1B_vRTCEnb; 265 266 if (command & 0xFF00) { /* extended (two-byte) command */ 267 via_pram_writebyte((command & 0xFF00) >> 8); 268 via_pram_writebyte(command & 0xFF); 269 is_read = command & 0x8000; 270 } else { /* one-byte command */ 271 via_pram_writebyte(command); 272 is_read = command & 0x80; 273 } 274 if (is_read) { 275 *data = via_pram_readbyte(); 276 } else { 277 via_pram_writebyte(*data); 278 } 279 280 /* All done, disable the RTC */ 281 282 via1[vBufB] |= VIA1B_vRTCEnb; 283 284 local_irq_restore(flags); 285} 286 287static __u8 via_read_pram(int offset) 288{ 289 return 0; 290} 291 292static void via_write_pram(int offset, __u8 data) 293{ 294} 295 296/* 297 * Return the current time in seconds since January 1, 1904. 298 * 299 * This only works on machines with the VIA-based PRAM/RTC, which 300 * is basically any machine with Mac II-style ADB. 301 */ 302 303static long via_read_time(void) 304{ 305 union { 306 __u8 cdata[4]; 307 long idata; 308 } result, last_result; 309 int count = 1; 310 311 via_pram_command(0x81, &last_result.cdata[3]); 312 via_pram_command(0x85, &last_result.cdata[2]); 313 via_pram_command(0x89, &last_result.cdata[1]); 314 via_pram_command(0x8D, &last_result.cdata[0]); 315 316 /* 317 * The NetBSD guys say to loop until you get the same reading 318 * twice in a row. 319 */ 320 321 while (1) { 322 via_pram_command(0x81, &result.cdata[3]); 323 via_pram_command(0x85, &result.cdata[2]); 324 via_pram_command(0x89, &result.cdata[1]); 325 via_pram_command(0x8D, &result.cdata[0]); 326 327 if (result.idata == last_result.idata) 328 return result.idata - RTC_OFFSET; 329 330 if (++count > 10) 331 break; 332 333 last_result.idata = result.idata; 334 } 335 336 pr_err("via_read_time: failed to read a stable value; " 337 "got 0x%08lx then 0x%08lx\n", 338 last_result.idata, result.idata); 339 340 return 0; 341} 342 343/* 344 * Set the current time to a number of seconds since January 1, 1904. 345 * 346 * This only works on machines with the VIA-based PRAM/RTC, which 347 * is basically any machine with Mac II-style ADB. 348 */ 349 350static void via_write_time(long time) 351{ 352 union { 353 __u8 cdata[4]; 354 long idata; 355 } data; 356 __u8 temp; 357 358 /* Clear the write protect bit */ 359 360 temp = 0x55; 361 via_pram_command(0x35, &temp); 362 363 data.idata = time + RTC_OFFSET; 364 via_pram_command(0x01, &data.cdata[3]); 365 via_pram_command(0x05, &data.cdata[2]); 366 via_pram_command(0x09, &data.cdata[1]); 367 via_pram_command(0x0D, &data.cdata[0]); 368 369 /* Set the write protect bit */ 370 371 temp = 0xD5; 372 via_pram_command(0x35, &temp); 373} 374 375static void via_shutdown(void) 376{ 377 if (rbv_present) { 378 via2[rBufB] &= ~0x04; 379 } else { 380 /* Direction of vDirB is output */ 381 via2[vDirB] |= 0x04; 382 /* Send a value of 0 on that line */ 383 via2[vBufB] &= ~0x04; 384 mdelay(1000); 385 } 386} 387 388/* 389 * FIXME: not sure how this is supposed to work exactly... 390 */ 391 392static void oss_shutdown(void) 393{ 394 oss->rom_ctrl = OSS_POWEROFF; 395} 396 397#ifdef CONFIG_ADB_CUDA 398 399static void cuda_restart(void) 400{ 401 struct adb_request req; 402 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM) < 0) 403 return; 404 while (!req.complete) 405 cuda_poll(); 406} 407 408static void cuda_shutdown(void) 409{ 410 struct adb_request req; 411 if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0) 412 return; 413 while (!req.complete) 414 cuda_poll(); 415} 416 417#endif /* CONFIG_ADB_CUDA */ 418 419#ifdef CONFIG_ADB_PMU68K 420 421void pmu_restart(void) 422{ 423 struct adb_request req; 424 if (pmu_request(&req, NULL, 425 2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0) 426 return; 427 while (!req.complete) 428 pmu_poll(); 429 if (pmu_request(&req, NULL, 1, PMU_RESET) < 0) 430 return; 431 while (!req.complete) 432 pmu_poll(); 433} 434 435void pmu_shutdown(void) 436{ 437 struct adb_request req; 438 if (pmu_request(&req, NULL, 439 2, PMU_SET_INTR_MASK, PMU_INT_ADB|PMU_INT_TICK) < 0) 440 return; 441 while (!req.complete) 442 pmu_poll(); 443 if (pmu_request(&req, NULL, 5, PMU_SHUTDOWN, 'M', 'A', 'T', 'T') < 0) 444 return; 445 while (!req.complete) 446 pmu_poll(); 447} 448 449#endif 450 451/* 452 *------------------------------------------------------------------- 453 * Below this point are the generic routines; they'll dispatch to the 454 * correct routine for the hardware on which we're running. 455 *------------------------------------------------------------------- 456 */ 457 458void mac_pram_read(int offset, __u8 *buffer, int len) 459{ 460 __u8 (*func)(int); 461 int i; 462 463 switch(macintosh_config->adb_type) { 464 case MAC_ADB_IISI: 465 func = maciisi_read_pram; break; 466 case MAC_ADB_PB1: 467 case MAC_ADB_PB2: 468 func = pmu_read_pram; break; 469 case MAC_ADB_CUDA: 470 func = cuda_read_pram; break; 471 default: 472 func = via_read_pram; 473 } 474 if (!func) 475 return; 476 for (i = 0 ; i < len ; i++) { 477 buffer[i] = (*func)(offset++); 478 } 479} 480 481void mac_pram_write(int offset, __u8 *buffer, int len) 482{ 483 void (*func)(int, __u8); 484 int i; 485 486 switch(macintosh_config->adb_type) { 487 case MAC_ADB_IISI: 488 func = maciisi_write_pram; break; 489 case MAC_ADB_PB1: 490 case MAC_ADB_PB2: 491 func = pmu_write_pram; break; 492 case MAC_ADB_CUDA: 493 func = cuda_write_pram; break; 494 default: 495 func = via_write_pram; 496 } 497 if (!func) 498 return; 499 for (i = 0 ; i < len ; i++) { 500 (*func)(offset++, buffer[i]); 501 } 502} 503 504void mac_poweroff(void) 505{ 506 /* 507 * MAC_ADB_IISI may need to be moved up here if it doesn't actually 508 * work using the ADB packet method. --David Kilzer 509 */ 510 511 if (oss_present) { 512 oss_shutdown(); 513 } else if (macintosh_config->adb_type == MAC_ADB_II) { 514 via_shutdown(); 515#ifdef CONFIG_ADB_CUDA 516 } else if (macintosh_config->adb_type == MAC_ADB_CUDA) { 517 cuda_shutdown(); 518#endif 519#ifdef CONFIG_ADB_PMU68K 520 } else if (macintosh_config->adb_type == MAC_ADB_PB1 521 || macintosh_config->adb_type == MAC_ADB_PB2) { 522 pmu_shutdown(); 523#endif 524 } 525 local_irq_enable(); 526 printk("It is now safe to turn off your Macintosh.\n"); 527 while(1); 528} 529 530void mac_reset(void) 531{ 532 if (macintosh_config->adb_type == MAC_ADB_II) { 533 unsigned long flags; 534 535 /* need ROMBASE in booter */ 536 /* indeed, plus need to MAP THE ROM !! */ 537 538 if (mac_bi_data.rombase == 0) 539 mac_bi_data.rombase = 0x40800000; 540 541 /* works on some */ 542 rom_reset = (void *) (mac_bi_data.rombase + 0xa); 543 544 if (macintosh_config->ident == MAC_MODEL_SE30) { 545 /* 546 * MSch: Machines known to crash on ROM reset ... 547 */ 548 } else { 549 local_irq_save(flags); 550 551 rom_reset(); 552 553 local_irq_restore(flags); 554 } 555#ifdef CONFIG_ADB_CUDA 556 } else if (macintosh_config->adb_type == MAC_ADB_CUDA) { 557 cuda_restart(); 558#endif 559#ifdef CONFIG_ADB_PMU68K 560 } else if (macintosh_config->adb_type == MAC_ADB_PB1 561 || macintosh_config->adb_type == MAC_ADB_PB2) { 562 pmu_restart(); 563#endif 564 } else if (CPU_IS_030) { 565 566 /* 030-specific reset routine. The idea is general, but the 567 * specific registers to reset are '030-specific. Until I 568 * have a non-030 machine, I can't test anything else. 569 * -- C. Scott Ananian <cananian@alumni.princeton.edu> 570 */ 571 572 unsigned long rombase = 0x40000000; 573 574 /* make a 1-to-1 mapping, using the transparent tran. reg. */ 575 unsigned long virt = (unsigned long) mac_reset; 576 unsigned long phys = virt_to_phys(mac_reset); 577 unsigned long addr = (phys&0xFF000000)|0x8777; 578 unsigned long offset = phys-virt; 579 local_irq_disable(); /* lets not screw this up, ok? */ 580 __asm__ __volatile__(".chip 68030\n\t" 581 "pmove %0,%/tt0\n\t" 582 ".chip 68k" 583 : : "m" (addr)); 584 /* Now jump to physical address so we can disable MMU */ 585 __asm__ __volatile__( 586 ".chip 68030\n\t" 587 "lea %/pc@(1f),%/a0\n\t" 588 "addl %0,%/a0\n\t"/* fixup target address and stack ptr */ 589 "addl %0,%/sp\n\t" 590 "pflusha\n\t" 591 "jmp %/a0@\n\t" /* jump into physical memory */ 592 "0:.long 0\n\t" /* a constant zero. */ 593 /* OK. Now reset everything and jump to reset vector. */ 594 "1:\n\t" 595 "lea %/pc@(0b),%/a0\n\t" 596 "pmove %/a0@, %/tc\n\t" /* disable mmu */ 597 "pmove %/a0@, %/tt0\n\t" /* disable tt0 */ 598 "pmove %/a0@, %/tt1\n\t" /* disable tt1 */ 599 "movel #0, %/a0\n\t" 600 "movec %/a0, %/vbr\n\t" /* clear vector base register */ 601 "movec %/a0, %/cacr\n\t" /* disable caches */ 602 "movel #0x0808,%/a0\n\t" 603 "movec %/a0, %/cacr\n\t" /* flush i&d caches */ 604 "movew #0x2700,%/sr\n\t" /* set up status register */ 605 "movel %1@(0x0),%/a0\n\t"/* load interrupt stack pointer */ 606 "movec %/a0, %/isp\n\t" 607 "movel %1@(0x4),%/a0\n\t" /* load reset vector */ 608 "reset\n\t" /* reset external devices */ 609 "jmp %/a0@\n\t" /* jump to the reset vector */ 610 ".chip 68k" 611 : : "r" (offset), "a" (rombase) : "a0"); 612 } 613 614 /* should never get here */ 615 local_irq_enable(); 616 printk ("Restart failed. Please restart manually.\n"); 617 while(1); 618} 619 620/* 621 * This function translates seconds since 1970 into a proper date. 622 * 623 * Algorithm cribbed from glibc2.1, __offtime(). 624 */ 625#define SECS_PER_MINUTE (60) 626#define SECS_PER_HOUR (SECS_PER_MINUTE * 60) 627#define SECS_PER_DAY (SECS_PER_HOUR * 24) 628 629static void unmktime(unsigned long time, long offset, 630 int *yearp, int *monp, int *dayp, 631 int *hourp, int *minp, int *secp) 632{ 633 /* How many days come before each month (0-12). */ 634 static const unsigned short int __mon_yday[2][13] = 635 { 636 /* Normal years. */ 637 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, 638 /* Leap years. */ 639 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } 640 }; 641 long int days, rem, y, wday, yday; 642 const unsigned short int *ip; 643 644 days = time / SECS_PER_DAY; 645 rem = time % SECS_PER_DAY; 646 rem += offset; 647 while (rem < 0) { 648 rem += SECS_PER_DAY; 649 --days; 650 } 651 while (rem >= SECS_PER_DAY) { 652 rem -= SECS_PER_DAY; 653 ++days; 654 } 655 *hourp = rem / SECS_PER_HOUR; 656 rem %= SECS_PER_HOUR; 657 *minp = rem / SECS_PER_MINUTE; 658 *secp = rem % SECS_PER_MINUTE; 659 /* January 1, 1970 was a Thursday. */ 660 wday = (4 + days) % 7; /* Day in the week. Not currently used */ 661 if (wday < 0) wday += 7; 662 y = 1970; 663 664#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0)) 665#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) 666#define __isleap(year) \ 667 ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) 668 669 while (days < 0 || days >= (__isleap (y) ? 366 : 365)) 670 { 671 /* Guess a corrected year, assuming 365 days per year. */ 672 long int yg = y + days / 365 - (days % 365 < 0); 673 674 /* Adjust DAYS and Y to match the guessed year. */ 675 days -= ((yg - y) * 365 676 + LEAPS_THRU_END_OF (yg - 1) 677 - LEAPS_THRU_END_OF (y - 1)); 678 y = yg; 679 } 680 *yearp = y - 1900; 681 yday = days; /* day in the year. Not currently used. */ 682 ip = __mon_yday[__isleap(y)]; 683 for (y = 11; days < (long int) ip[y]; --y) 684 continue; 685 days -= ip[y]; 686 *monp = y; 687 *dayp = days + 1; /* day in the month */ 688 return; 689} 690 691/* 692 * Read/write the hardware clock. 693 */ 694 695int mac_hwclk(int op, struct rtc_time *t) 696{ 697 unsigned long now; 698 699 if (!op) { /* read */ 700 switch (macintosh_config->adb_type) { 701 case MAC_ADB_II: 702 case MAC_ADB_IOP: 703 now = via_read_time(); 704 break; 705 case MAC_ADB_IISI: 706 now = maciisi_read_time(); 707 break; 708 case MAC_ADB_PB1: 709 case MAC_ADB_PB2: 710 now = pmu_read_time(); 711 break; 712 case MAC_ADB_CUDA: 713 now = cuda_read_time(); 714 break; 715 default: 716 now = 0; 717 } 718 719 t->tm_wday = 0; 720 unmktime(now, 0, 721 &t->tm_year, &t->tm_mon, &t->tm_mday, 722 &t->tm_hour, &t->tm_min, &t->tm_sec); 723#if 0 724 printk("mac_hwclk: read %04d-%02d-%-2d %02d:%02d:%02d\n", 725 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 726 t->tm_hour, t->tm_min, t->tm_sec); 727#endif 728 } else { /* write */ 729#if 0 730 printk("mac_hwclk: tried to write %04d-%02d-%-2d %02d:%02d:%02d\n", 731 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 732 t->tm_hour, t->tm_min, t->tm_sec); 733#endif 734 735 now = mktime(t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, 736 t->tm_hour, t->tm_min, t->tm_sec); 737 738 switch (macintosh_config->adb_type) { 739 case MAC_ADB_II: 740 case MAC_ADB_IOP: 741 via_write_time(now); 742 break; 743 case MAC_ADB_CUDA: 744 cuda_write_time(now); 745 break; 746 case MAC_ADB_PB1: 747 case MAC_ADB_PB2: 748 pmu_write_time(now); 749 break; 750 case MAC_ADB_IISI: 751 maciisi_write_time(now); 752 } 753 } 754 return 0; 755} 756 757/* 758 * Set minutes/seconds in the hardware clock 759 */ 760 761int mac_set_clock_mmss (unsigned long nowtime) 762{ 763 struct rtc_time now; 764 765 mac_hwclk(0, &now); 766 now.tm_sec = nowtime % 60; 767 now.tm_min = (nowtime / 60) % 60; 768 mac_hwclk(1, &now); 769 770 return 0; 771} 772