1 /* 2 * linux/arch/m68k/amiga/config.c 3 * 4 * Copyright (C) 1993 Hamish Macdonald 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file COPYING in the main directory of this archive 8 * for more details. 9 */ 10 11 /* 12 * Miscellaneous Amiga stuff 13 */ 14 15 #include <linux/types.h> 16 #include <linux/kernel.h> 17 #include <linux/mm.h> 18 #include <linux/seq_file.h> 19 #include <linux/tty.h> 20 #include <linux/clocksource.h> 21 #include <linux/console.h> 22 #include <linux/rtc.h> 23 #include <linux/init.h> 24 #include <linux/vt_kern.h> 25 #include <linux/delay.h> 26 #include <linux/interrupt.h> 27 #include <linux/zorro.h> 28 #include <linux/module.h> 29 #include <linux/keyboard.h> 30 31 #include <asm/bootinfo.h> 32 #include <asm/bootinfo-amiga.h> 33 #include <asm/byteorder.h> 34 #include <asm/setup.h> 35 #include <asm/amigahw.h> 36 #include <asm/amigaints.h> 37 #include <asm/irq.h> 38 #include <asm/machdep.h> 39 #include <asm/io.h> 40 41 static unsigned long amiga_model; 42 43 unsigned long amiga_eclock; 44 EXPORT_SYMBOL(amiga_eclock); 45 46 unsigned long amiga_colorclock; 47 EXPORT_SYMBOL(amiga_colorclock); 48 49 unsigned long amiga_chipset; 50 EXPORT_SYMBOL(amiga_chipset); 51 52 unsigned char amiga_vblank; 53 EXPORT_SYMBOL(amiga_vblank); 54 55 static unsigned char amiga_psfreq; 56 57 struct amiga_hw_present amiga_hw_present; 58 EXPORT_SYMBOL(amiga_hw_present); 59 60 static char s_a500[] __initdata = "A500"; 61 static char s_a500p[] __initdata = "A500+"; 62 static char s_a600[] __initdata = "A600"; 63 static char s_a1000[] __initdata = "A1000"; 64 static char s_a1200[] __initdata = "A1200"; 65 static char s_a2000[] __initdata = "A2000"; 66 static char s_a2500[] __initdata = "A2500"; 67 static char s_a3000[] __initdata = "A3000"; 68 static char s_a3000t[] __initdata = "A3000T"; 69 static char s_a3000p[] __initdata = "A3000+"; 70 static char s_a4000[] __initdata = "A4000"; 71 static char s_a4000t[] __initdata = "A4000T"; 72 static char s_cdtv[] __initdata = "CDTV"; 73 static char s_cd32[] __initdata = "CD32"; 74 static char s_draco[] __initdata = "Draco"; 75 static char *amiga_models[] __initdata = { 76 [AMI_500-AMI_500] = s_a500, 77 [AMI_500PLUS-AMI_500] = s_a500p, 78 [AMI_600-AMI_500] = s_a600, 79 [AMI_1000-AMI_500] = s_a1000, 80 [AMI_1200-AMI_500] = s_a1200, 81 [AMI_2000-AMI_500] = s_a2000, 82 [AMI_2500-AMI_500] = s_a2500, 83 [AMI_3000-AMI_500] = s_a3000, 84 [AMI_3000T-AMI_500] = s_a3000t, 85 [AMI_3000PLUS-AMI_500] = s_a3000p, 86 [AMI_4000-AMI_500] = s_a4000, 87 [AMI_4000T-AMI_500] = s_a4000t, 88 [AMI_CDTV-AMI_500] = s_cdtv, 89 [AMI_CD32-AMI_500] = s_cd32, 90 [AMI_DRACO-AMI_500] = s_draco, 91 }; 92 93 static char amiga_model_name[13] = "Amiga "; 94 95 static void amiga_sched_init(void); 96 static void amiga_get_model(char *model); 97 static void amiga_get_hardware_list(struct seq_file *m); 98 extern void amiga_mksound(unsigned int count, unsigned int ticks); 99 static void amiga_reset(void); 100 extern void amiga_init_sound(void); 101 static void amiga_mem_console_write(struct console *co, const char *b, 102 unsigned int count); 103 #ifdef CONFIG_HEARTBEAT 104 static void amiga_heartbeat(int on); 105 #endif 106 107 static struct console amiga_console_driver = { 108 .name = "debug", 109 .flags = CON_PRINTBUFFER, 110 .index = -1, 111 }; 112 113 114 /* 115 * Motherboard Resources present in all Amiga models 116 */ 117 118 static struct { 119 struct resource _ciab, _ciaa, _custom, _kickstart; 120 } mb_resources = { 121 ._ciab = { 122 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 123 }, 124 ._ciaa = { 125 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 126 }, 127 ._custom = { 128 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 129 }, 130 ._kickstart = { 131 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 132 } 133 }; 134 135 static struct resource ram_resource[NUM_MEMINFO]; 136 137 138 /* 139 * Parse an Amiga-specific record in the bootinfo 140 */ 141 142 int __init amiga_parse_bootinfo(const struct bi_record *record) 143 { 144 int unknown = 0; 145 const void *data = record->data; 146 147 switch (be16_to_cpu(record->tag)) { 148 case BI_AMIGA_MODEL: 149 amiga_model = be32_to_cpup(data); 150 break; 151 152 case BI_AMIGA_ECLOCK: 153 amiga_eclock = be32_to_cpup(data); 154 break; 155 156 case BI_AMIGA_CHIPSET: 157 amiga_chipset = be32_to_cpup(data); 158 break; 159 160 case BI_AMIGA_CHIP_SIZE: 161 amiga_chip_size = be32_to_cpup(data); 162 break; 163 164 case BI_AMIGA_VBLANK: 165 amiga_vblank = *(const __u8 *)data; 166 break; 167 168 case BI_AMIGA_PSFREQ: 169 amiga_psfreq = *(const __u8 *)data; 170 break; 171 172 case BI_AMIGA_AUTOCON: 173 #ifdef CONFIG_ZORRO 174 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 175 const struct ConfigDev *cd = data; 176 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; 177 dev->rom = cd->cd_Rom; 178 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); 179 dev->slotsize = be16_to_cpu(cd->cd_SlotSize); 180 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); 181 dev->boardsize = be32_to_cpu(cd->cd_BoardSize); 182 } else 183 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 184 #endif /* CONFIG_ZORRO */ 185 break; 186 187 case BI_AMIGA_SERPER: 188 /* serial port period: ignored here */ 189 break; 190 191 default: 192 unknown = 1; 193 } 194 return unknown; 195 } 196 197 /* 198 * Identify builtin hardware 199 */ 200 201 static void __init amiga_identify(void) 202 { 203 /* Fill in some default values, if necessary */ 204 if (amiga_eclock == 0) 205 amiga_eclock = 709379; 206 207 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 208 209 pr_info("Amiga hardware found: "); 210 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 211 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 212 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 213 } 214 215 switch (amiga_model) { 216 case AMI_UNKNOWN: 217 break; 218 219 case AMI_600: 220 case AMI_1200: 221 AMIGAHW_SET(A1200_IDE); 222 AMIGAHW_SET(PCMCIA); 223 fallthrough; 224 case AMI_500: 225 case AMI_500PLUS: 226 case AMI_1000: 227 case AMI_2000: 228 case AMI_2500: 229 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 230 break; 231 232 case AMI_3000: 233 case AMI_3000T: 234 AMIGAHW_SET(AMBER_FF); 235 AMIGAHW_SET(MAGIC_REKICK); 236 fallthrough; 237 case AMI_3000PLUS: 238 AMIGAHW_SET(A3000_SCSI); 239 AMIGAHW_SET(A3000_CLK); 240 AMIGAHW_SET(ZORRO3); 241 break; 242 243 case AMI_4000T: 244 AMIGAHW_SET(A4000_SCSI); 245 fallthrough; 246 case AMI_4000: 247 AMIGAHW_SET(A4000_IDE); 248 AMIGAHW_SET(A3000_CLK); 249 AMIGAHW_SET(ZORRO3); 250 break; 251 252 case AMI_CDTV: 253 case AMI_CD32: 254 AMIGAHW_SET(CD_ROM); 255 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 256 break; 257 258 case AMI_DRACO: 259 panic("No support for Draco yet"); 260 261 default: 262 panic("Unknown Amiga Model"); 263 } 264 265 AMIGAHW_SET(AMI_VIDEO); 266 AMIGAHW_SET(AMI_BLITTER); 267 AMIGAHW_SET(AMI_AUDIO); 268 AMIGAHW_SET(AMI_FLOPPY); 269 AMIGAHW_SET(AMI_KEYBOARD); 270 AMIGAHW_SET(AMI_MOUSE); 271 AMIGAHW_SET(AMI_SERIAL); 272 AMIGAHW_SET(AMI_PARALLEL); 273 AMIGAHW_SET(CHIP_RAM); 274 AMIGAHW_SET(PAULA); 275 276 switch (amiga_chipset) { 277 case CS_OCS: 278 case CS_ECS: 279 case CS_AGA: 280 switch (amiga_custom.deniseid & 0xf) { 281 case 0x0c: 282 AMIGAHW_SET(DENISE_HR); 283 break; 284 case 0x08: 285 AMIGAHW_SET(LISA); 286 break; 287 default: 288 AMIGAHW_SET(DENISE); 289 break; 290 } 291 break; 292 } 293 switch ((amiga_custom.vposr>>8) & 0x7f) { 294 case 0x00: 295 AMIGAHW_SET(AGNUS_PAL); 296 break; 297 case 0x10: 298 AMIGAHW_SET(AGNUS_NTSC); 299 break; 300 case 0x20: 301 case 0x21: 302 AMIGAHW_SET(AGNUS_HR_PAL); 303 break; 304 case 0x30: 305 case 0x31: 306 AMIGAHW_SET(AGNUS_HR_NTSC); 307 break; 308 case 0x22: 309 case 0x23: 310 AMIGAHW_SET(ALICE_PAL); 311 break; 312 case 0x32: 313 case 0x33: 314 AMIGAHW_SET(ALICE_NTSC); 315 break; 316 } 317 AMIGAHW_SET(ZORRO); 318 319 #define AMIGAHW_ANNOUNCE(name, str) \ 320 if (AMIGAHW_PRESENT(name)) \ 321 pr_cont(str) 322 323 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 324 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 325 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 326 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 327 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 328 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 329 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 330 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 331 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 332 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 333 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 334 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 335 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 336 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 337 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 338 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 339 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 340 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 341 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 342 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 343 AMIGAHW_ANNOUNCE(LISA, "LISA "); 344 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 345 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 346 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 347 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 348 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 349 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 350 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 351 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 352 if (AMIGAHW_PRESENT(ZORRO)) 353 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 354 pr_cont("\n"); 355 356 #undef AMIGAHW_ANNOUNCE 357 } 358 359 360 static unsigned long amiga_random_get_entropy(void) 361 { 362 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 363 return *(unsigned long *)&amiga_custom.vposr; 364 } 365 366 367 /* 368 * Setup the Amiga configuration info 369 */ 370 371 void __init config_amiga(void) 372 { 373 int i; 374 375 amiga_identify(); 376 377 /* Yuk, we don't have PCI memory */ 378 iomem_resource.name = "Memory"; 379 for (i = 0; i < 4; i++) 380 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 381 382 mach_sched_init = amiga_sched_init; 383 mach_init_IRQ = amiga_init_IRQ; 384 mach_get_model = amiga_get_model; 385 mach_get_hardware_list = amiga_get_hardware_list; 386 mach_reset = amiga_reset; 387 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 388 mach_beep = amiga_mksound; 389 #endif 390 391 #ifdef CONFIG_HEARTBEAT 392 mach_heartbeat = amiga_heartbeat; 393 #endif 394 395 mach_random_get_entropy = amiga_random_get_entropy; 396 397 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 398 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 399 400 /* clear all DMA bits */ 401 amiga_custom.dmacon = DMAF_ALL; 402 /* ensure that the DMA master bit is set */ 403 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 404 405 /* don't use Z2 RAM as system memory on Z3 capable machines */ 406 if (AMIGAHW_PRESENT(ZORRO3)) { 407 int i, j; 408 u32 disabled_z2mem = 0; 409 410 for (i = 0; i < m68k_num_memory; i++) { 411 if (m68k_memory[i].addr < 16*1024*1024) { 412 if (i == 0) { 413 /* don't cut off the branch we're sitting on */ 414 pr_warn("Warning: kernel runs in Zorro II memory\n"); 415 continue; 416 } 417 disabled_z2mem += m68k_memory[i].size; 418 m68k_num_memory--; 419 for (j = i; j < m68k_num_memory; j++) 420 m68k_memory[j] = m68k_memory[j+1]; 421 i--; 422 } 423 } 424 if (disabled_z2mem) 425 pr_info("%dK of Zorro II memory will not be used as system memory\n", 426 disabled_z2mem>>10); 427 } 428 429 /* request all RAM */ 430 for (i = 0; i < m68k_num_memory; i++) { 431 ram_resource[i].name = 432 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 433 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 434 "16-bit Slow RAM"; 435 ram_resource[i].start = m68k_memory[i].addr; 436 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 437 request_resource(&iomem_resource, &ram_resource[i]); 438 } 439 440 /* initialize chipram allocator */ 441 amiga_chip_init(); 442 443 /* our beloved beeper */ 444 if (AMIGAHW_PRESENT(AMI_AUDIO)) 445 amiga_init_sound(); 446 447 /* 448 * if it is an A3000, set the magic bit that forces 449 * a hard rekick 450 */ 451 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 452 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 453 } 454 455 static u64 amiga_read_clk(struct clocksource *cs); 456 457 static struct clocksource amiga_clk = { 458 .name = "ciab", 459 .rating = 250, 460 .read = amiga_read_clk, 461 .mask = CLOCKSOURCE_MASK(32), 462 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 463 }; 464 465 static unsigned short jiffy_ticks; 466 static u32 clk_total, clk_offset; 467 468 static irqreturn_t ciab_timer_handler(int irq, void *dev_id) 469 { 470 clk_total += jiffy_ticks; 471 clk_offset = 0; 472 legacy_timer_tick(1); 473 timer_heartbeat(); 474 475 return IRQ_HANDLED; 476 } 477 478 static void __init amiga_sched_init(void) 479 { 480 static struct resource sched_res = { 481 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 482 }; 483 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 484 485 if (request_resource(&mb_resources._ciab, &sched_res)) 486 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 487 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 488 ciab.talo = jiffy_ticks % 256; 489 ciab.tahi = jiffy_ticks / 256; 490 491 /* install interrupt service routine for CIAB Timer A 492 * 493 * Please don't change this to use ciaa, as it interferes with the 494 * SCSI code. We'll have to take a look at this later 495 */ 496 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 497 "timer", NULL)) 498 pr_err("Couldn't register timer interrupt\n"); 499 /* start timer */ 500 ciab.cra |= 0x11; 501 502 clocksource_register_hz(&amiga_clk, amiga_eclock); 503 } 504 505 static u64 amiga_read_clk(struct clocksource *cs) 506 { 507 unsigned short hi, lo, hi2; 508 unsigned long flags; 509 u32 ticks; 510 511 local_irq_save(flags); 512 513 /* read CIA B timer A current value */ 514 hi = ciab.tahi; 515 lo = ciab.talo; 516 hi2 = ciab.tahi; 517 518 if (hi != hi2) { 519 lo = ciab.talo; 520 hi = hi2; 521 } 522 523 ticks = hi << 8 | lo; 524 525 if (ticks > jiffy_ticks / 2) 526 /* check for pending interrupt */ 527 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 528 clk_offset = jiffy_ticks; 529 530 ticks = jiffy_ticks - ticks; 531 ticks += clk_offset + clk_total; 532 533 local_irq_restore(flags); 534 535 return ticks; 536 } 537 538 static void amiga_reset(void) __noreturn; 539 540 static void amiga_reset(void) 541 { 542 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 543 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 544 545 local_irq_disable(); 546 if (CPU_IS_040_OR_060) 547 /* Setup transparent translation registers for mapping 548 * of 16 MB kernel segment before disabling translation 549 */ 550 asm volatile ("\n" 551 " move.l %0,%%d0\n" 552 " and.l #0xff000000,%%d0\n" 553 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 554 " .chip 68040\n" 555 " movec %%d0,%%itt0\n" 556 " movec %%d0,%%dtt0\n" 557 " .chip 68k\n" 558 " jmp %0@\n" 559 : /* no outputs */ 560 : "a" (jmp_addr040) 561 : "d0"); 562 else 563 /* for 680[23]0, just disable translation and jump to the physical 564 * address of the label 565 */ 566 asm volatile ("\n" 567 " pmove %%tc,%@\n" 568 " bclr #7,%@\n" 569 " pmove %@,%%tc\n" 570 " jmp %0@\n" 571 : /* no outputs */ 572 : "a" (jmp_addr)); 573 jmp_addr_label040: 574 /* disable translation on '040 now */ 575 asm volatile ("\n" 576 " moveq #0,%%d0\n" 577 " .chip 68040\n" 578 " movec %%d0,%%tc\n" /* disable MMU */ 579 " .chip 68k\n" 580 : /* no outputs */ 581 : /* no inputs */ 582 : "d0"); 583 584 jmp_addr_label: 585 /* pickup reset address from AmigaOS ROM, reset devices and jump 586 * to reset address 587 */ 588 asm volatile ("\n" 589 " move.w #0x2700,%sr\n" 590 " lea 0x01000000,%a0\n" 591 " sub.l %a0@(-0x14),%a0\n" 592 " move.l %a0@(4),%a0\n" 593 " subq.l #2,%a0\n" 594 " jra 1f\n" 595 /* align on a longword boundary */ 596 " " __ALIGN_STR "\n" 597 "1:\n" 598 " reset\n" 599 " jmp %a0@"); 600 601 for (;;) 602 ; 603 } 604 605 606 /* 607 * Debugging 608 */ 609 610 #define SAVEKMSG_MAXMEM 128*1024 611 612 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 613 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 614 615 struct savekmsg { 616 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 617 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 618 unsigned long magicptr; /* address of magic1 */ 619 unsigned long size; 620 char data[]; 621 }; 622 623 static struct savekmsg *savekmsg; 624 625 static void amiga_mem_console_write(struct console *co, const char *s, 626 unsigned int count) 627 { 628 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 629 memcpy(savekmsg->data + savekmsg->size, s, count); 630 savekmsg->size += count; 631 } 632 } 633 634 static int __init amiga_savekmsg_setup(char *arg) 635 { 636 bool registered; 637 638 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 639 return 0; 640 641 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 642 pr_err("Not enough chipram for debugging\n"); 643 return -ENOMEM; 644 } 645 646 /* Just steal the block, the chipram allocator isn't functional yet */ 647 amiga_chip_size -= SAVEKMSG_MAXMEM; 648 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 649 savekmsg->magic1 = SAVEKMSG_MAGIC1; 650 savekmsg->magic2 = SAVEKMSG_MAGIC2; 651 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 652 savekmsg->size = 0; 653 654 registered = !!amiga_console_driver.write; 655 amiga_console_driver.write = amiga_mem_console_write; 656 if (!registered) 657 register_console(&amiga_console_driver); 658 return 0; 659 } 660 661 early_param("debug", amiga_savekmsg_setup); 662 663 static void amiga_serial_putc(char c) 664 { 665 amiga_custom.serdat = (unsigned char)c | 0x100; 666 while (!(amiga_custom.serdatr & 0x2000)) 667 ; 668 } 669 670 static void amiga_serial_console_write(struct console *co, const char *s, 671 unsigned int count) 672 { 673 while (count--) { 674 if (*s == '\n') 675 amiga_serial_putc('\r'); 676 amiga_serial_putc(*s++); 677 } 678 } 679 680 #if 0 681 void amiga_serial_puts(const char *s) 682 { 683 amiga_serial_console_write(NULL, s, strlen(s)); 684 } 685 686 int amiga_serial_console_wait_key(struct console *co) 687 { 688 int ch; 689 690 while (!(amiga_custom.intreqr & IF_RBF)) 691 barrier(); 692 ch = amiga_custom.serdatr & 0xff; 693 /* clear the interrupt, so that another character can be read */ 694 amiga_custom.intreq = IF_RBF; 695 return ch; 696 } 697 698 void amiga_serial_gets(struct console *co, char *s, int len) 699 { 700 int ch, cnt = 0; 701 702 while (1) { 703 ch = amiga_serial_console_wait_key(co); 704 705 /* Check for backspace. */ 706 if (ch == 8 || ch == 127) { 707 if (cnt == 0) { 708 amiga_serial_putc('\007'); 709 continue; 710 } 711 cnt--; 712 amiga_serial_puts("\010 \010"); 713 continue; 714 } 715 716 /* Check for enter. */ 717 if (ch == 10 || ch == 13) 718 break; 719 720 /* See if line is too long. */ 721 if (cnt >= len + 1) { 722 amiga_serial_putc(7); 723 cnt--; 724 continue; 725 } 726 727 /* Store and echo character. */ 728 s[cnt++] = ch; 729 amiga_serial_putc(ch); 730 } 731 /* Print enter. */ 732 amiga_serial_puts("\r\n"); 733 s[cnt] = 0; 734 } 735 #endif 736 737 static int __init amiga_debug_setup(char *arg) 738 { 739 bool registered; 740 741 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 742 return 0; 743 744 /* no initialization required (?) */ 745 registered = !!amiga_console_driver.write; 746 amiga_console_driver.write = amiga_serial_console_write; 747 if (!registered) 748 register_console(&amiga_console_driver); 749 return 0; 750 } 751 752 early_param("debug", amiga_debug_setup); 753 754 #ifdef CONFIG_HEARTBEAT 755 static void amiga_heartbeat(int on) 756 { 757 if (on) 758 ciaa.pra &= ~2; 759 else 760 ciaa.pra |= 2; 761 } 762 #endif 763 764 /* 765 * Amiga specific parts of /proc 766 */ 767 768 static void amiga_get_model(char *model) 769 { 770 strcpy(model, amiga_model_name); 771 } 772 773 774 static void amiga_get_hardware_list(struct seq_file *m) 775 { 776 if (AMIGAHW_PRESENT(CHIP_RAM)) 777 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 778 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 779 amiga_psfreq, amiga_eclock); 780 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 781 char *type; 782 switch (amiga_chipset) { 783 case CS_OCS: 784 type = "OCS"; 785 break; 786 case CS_ECS: 787 type = "ECS"; 788 break; 789 case CS_AGA: 790 type = "AGA"; 791 break; 792 default: 793 type = "Old or Unknown"; 794 break; 795 } 796 seq_printf(m, "Graphics:\t%s\n", type); 797 } 798 799 #define AMIGAHW_ANNOUNCE(name, str) \ 800 if (AMIGAHW_PRESENT(name)) \ 801 seq_printf (m, "\t%s\n", str) 802 803 seq_puts(m, "Detected hardware:\n"); 804 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 805 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 806 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 807 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 808 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 809 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 810 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 811 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 812 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 813 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 814 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 815 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 816 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 817 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 818 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 819 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 820 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 821 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 822 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 823 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 824 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 825 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 826 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 827 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 828 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 829 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 830 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 831 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 832 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 833 #ifdef CONFIG_ZORRO 834 if (AMIGAHW_PRESENT(ZORRO)) 835 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 836 "Device%s\n", 837 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 838 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 839 #endif /* CONFIG_ZORRO */ 840 841 #undef AMIGAHW_ANNOUNCE 842 } 843 844 /* 845 * The Amiga keyboard driver needs key_maps, but we cannot export it in 846 * drivers/char/defkeymap.c, as it is autogenerated 847 */ 848 #ifdef CONFIG_HW_CONSOLE 849 EXPORT_SYMBOL_GPL(key_maps); 850 #endif 851