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/clocksource.h> 20 #include <linux/console.h> 21 #include <linux/rtc.h> 22 #include <linux/init.h> 23 #include <linux/delay.h> 24 #include <linux/interrupt.h> 25 #include <linux/zorro.h> 26 #include <linux/module.h> 27 #include <linux/keyboard.h> 28 29 #include <asm/bootinfo.h> 30 #include <asm/bootinfo-amiga.h> 31 #include <asm/byteorder.h> 32 #include <asm/setup.h> 33 #include <asm/amigahw.h> 34 #include <asm/amigaints.h> 35 #include <asm/irq.h> 36 #include <asm/machdep.h> 37 #include <asm/io.h> 38 #include <asm/config.h> 39 40 #include "amiga.h" 41 42 static unsigned long amiga_model; 43 44 unsigned long amiga_eclock; 45 EXPORT_SYMBOL(amiga_eclock); 46 47 unsigned long amiga_colorclock; 48 EXPORT_SYMBOL(amiga_colorclock); 49 50 unsigned long amiga_chipset; 51 EXPORT_SYMBOL(amiga_chipset); 52 53 unsigned char amiga_vblank; 54 EXPORT_SYMBOL(amiga_vblank); 55 56 static unsigned char amiga_psfreq; 57 58 struct amiga_hw_present amiga_hw_present; 59 EXPORT_SYMBOL(amiga_hw_present); 60 61 static char s_a500[] __initdata = "A500"; 62 static char s_a500p[] __initdata = "A500+"; 63 static char s_a600[] __initdata = "A600"; 64 static char s_a1000[] __initdata = "A1000"; 65 static char s_a1200[] __initdata = "A1200"; 66 static char s_a2000[] __initdata = "A2000"; 67 static char s_a2500[] __initdata = "A2500"; 68 static char s_a3000[] __initdata = "A3000"; 69 static char s_a3000t[] __initdata = "A3000T"; 70 static char s_a3000p[] __initdata = "A3000+"; 71 static char s_a4000[] __initdata = "A4000"; 72 static char s_a4000t[] __initdata = "A4000T"; 73 static char s_cdtv[] __initdata = "CDTV"; 74 static char s_cd32[] __initdata = "CD32"; 75 static char s_draco[] __initdata = "Draco"; 76 static char *amiga_models[] __initdata = { 77 [AMI_500-AMI_500] = s_a500, 78 [AMI_500PLUS-AMI_500] = s_a500p, 79 [AMI_600-AMI_500] = s_a600, 80 [AMI_1000-AMI_500] = s_a1000, 81 [AMI_1200-AMI_500] = s_a1200, 82 [AMI_2000-AMI_500] = s_a2000, 83 [AMI_2500-AMI_500] = s_a2500, 84 [AMI_3000-AMI_500] = s_a3000, 85 [AMI_3000T-AMI_500] = s_a3000t, 86 [AMI_3000PLUS-AMI_500] = s_a3000p, 87 [AMI_4000-AMI_500] = s_a4000, 88 [AMI_4000T-AMI_500] = s_a4000t, 89 [AMI_CDTV-AMI_500] = s_cdtv, 90 [AMI_CD32-AMI_500] = s_cd32, 91 [AMI_DRACO-AMI_500] = s_draco, 92 }; 93 94 static char amiga_model_name[13] = "Amiga "; 95 96 static void amiga_sched_init(void); 97 static void amiga_get_model(char *model); 98 static void amiga_get_hardware_list(struct seq_file *m); 99 static void amiga_reset(void); 100 static void amiga_mem_console_write(struct console *co, const char *b, 101 unsigned int count); 102 #ifdef CONFIG_HEARTBEAT 103 static void amiga_heartbeat(int on); 104 #endif 105 106 static struct console amiga_console_driver = { 107 .name = "debug", 108 .flags = CON_PRINTBUFFER, 109 .index = -1, 110 }; 111 112 113 /* 114 * Motherboard Resources present in all Amiga models 115 */ 116 117 static struct { 118 struct resource _ciab, _ciaa, _custom, _kickstart; 119 } mb_resources = { 120 ._ciab = { 121 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 122 }, 123 ._ciaa = { 124 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 125 }, 126 ._custom = { 127 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 128 }, 129 ._kickstart = { 130 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 131 } 132 }; 133 134 static struct resource ram_resource[NUM_MEMINFO]; 135 136 137 /* 138 * Parse an Amiga-specific record in the bootinfo 139 */ 140 141 int __init amiga_parse_bootinfo(const struct bi_record *record) 142 { 143 int unknown = 0; 144 const void *data = record->data; 145 146 switch (be16_to_cpu(record->tag)) { 147 case BI_AMIGA_MODEL: 148 amiga_model = be32_to_cpup(data); 149 break; 150 151 case BI_AMIGA_ECLOCK: 152 amiga_eclock = be32_to_cpup(data); 153 break; 154 155 case BI_AMIGA_CHIPSET: 156 amiga_chipset = be32_to_cpup(data); 157 break; 158 159 case BI_AMIGA_CHIP_SIZE: 160 amiga_chip_size = be32_to_cpup(data); 161 break; 162 163 case BI_AMIGA_VBLANK: 164 amiga_vblank = *(const __u8 *)data; 165 break; 166 167 case BI_AMIGA_PSFREQ: 168 amiga_psfreq = *(const __u8 *)data; 169 break; 170 171 case BI_AMIGA_AUTOCON: 172 #ifdef CONFIG_ZORRO 173 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 174 const struct ConfigDev *cd = data; 175 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; 176 dev->rom = cd->cd_Rom; 177 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); 178 dev->slotsize = be16_to_cpu(cd->cd_SlotSize); 179 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); 180 dev->boardsize = be32_to_cpu(cd->cd_BoardSize); 181 182 /* CS-LAB Warp 1260 workaround */ 183 if (be16_to_cpu(dev->rom.er_Manufacturer) == ZORRO_MANUF(ZORRO_PROD_CSLAB_WARP_1260) && 184 dev->rom.er_Product == ZORRO_PROD(ZORRO_PROD_CSLAB_WARP_1260)) { 185 186 /* turn off all interrupts */ 187 pr_info("Warp 1260 card detected: applying interrupt storm workaround\n"); 188 *(uint32_t *)(dev->boardaddr + 0x1000) = 0xfff; 189 } 190 } else 191 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 192 #endif /* CONFIG_ZORRO */ 193 break; 194 195 case BI_AMIGA_SERPER: 196 /* serial port period: ignored here */ 197 break; 198 199 default: 200 unknown = 1; 201 } 202 return unknown; 203 } 204 205 /* 206 * Identify builtin hardware 207 */ 208 209 static void __init amiga_identify(void) 210 { 211 /* Fill in some default values, if necessary */ 212 if (amiga_eclock == 0) 213 amiga_eclock = 709379; 214 215 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 216 217 pr_info("Amiga hardware found: "); 218 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 219 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 220 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 221 } 222 223 switch (amiga_model) { 224 case AMI_UNKNOWN: 225 break; 226 227 case AMI_600: 228 case AMI_1200: 229 AMIGAHW_SET(A1200_IDE); 230 AMIGAHW_SET(PCMCIA); 231 fallthrough; 232 case AMI_500: 233 case AMI_500PLUS: 234 case AMI_1000: 235 case AMI_2000: 236 case AMI_2500: 237 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 238 break; 239 240 case AMI_3000: 241 case AMI_3000T: 242 AMIGAHW_SET(AMBER_FF); 243 AMIGAHW_SET(MAGIC_REKICK); 244 fallthrough; 245 case AMI_3000PLUS: 246 AMIGAHW_SET(A3000_SCSI); 247 AMIGAHW_SET(A3000_CLK); 248 AMIGAHW_SET(ZORRO3); 249 break; 250 251 case AMI_4000T: 252 AMIGAHW_SET(A4000_SCSI); 253 fallthrough; 254 case AMI_4000: 255 AMIGAHW_SET(A4000_IDE); 256 AMIGAHW_SET(A3000_CLK); 257 AMIGAHW_SET(ZORRO3); 258 break; 259 260 case AMI_CDTV: 261 case AMI_CD32: 262 AMIGAHW_SET(CD_ROM); 263 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 264 break; 265 266 case AMI_DRACO: 267 panic("No support for Draco yet"); 268 269 default: 270 panic("Unknown Amiga Model"); 271 } 272 273 AMIGAHW_SET(AMI_VIDEO); 274 AMIGAHW_SET(AMI_BLITTER); 275 AMIGAHW_SET(AMI_AUDIO); 276 AMIGAHW_SET(AMI_FLOPPY); 277 AMIGAHW_SET(AMI_KEYBOARD); 278 AMIGAHW_SET(AMI_MOUSE); 279 AMIGAHW_SET(AMI_SERIAL); 280 AMIGAHW_SET(AMI_PARALLEL); 281 AMIGAHW_SET(CHIP_RAM); 282 AMIGAHW_SET(PAULA); 283 284 switch (amiga_chipset) { 285 case CS_OCS: 286 case CS_ECS: 287 case CS_AGA: 288 switch (amiga_custom.deniseid & 0xf) { 289 case 0x0c: 290 AMIGAHW_SET(DENISE_HR); 291 break; 292 case 0x08: 293 AMIGAHW_SET(LISA); 294 break; 295 default: 296 AMIGAHW_SET(DENISE); 297 break; 298 } 299 break; 300 } 301 switch ((amiga_custom.vposr>>8) & 0x7f) { 302 case 0x00: 303 AMIGAHW_SET(AGNUS_PAL); 304 break; 305 case 0x10: 306 AMIGAHW_SET(AGNUS_NTSC); 307 break; 308 case 0x20: 309 case 0x21: 310 AMIGAHW_SET(AGNUS_HR_PAL); 311 break; 312 case 0x30: 313 case 0x31: 314 AMIGAHW_SET(AGNUS_HR_NTSC); 315 break; 316 case 0x22: 317 case 0x23: 318 AMIGAHW_SET(ALICE_PAL); 319 break; 320 case 0x32: 321 case 0x33: 322 AMIGAHW_SET(ALICE_NTSC); 323 break; 324 } 325 AMIGAHW_SET(ZORRO); 326 327 #define AMIGAHW_ANNOUNCE(name, str) \ 328 if (AMIGAHW_PRESENT(name)) \ 329 pr_cont(str) 330 331 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 332 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 333 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 334 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 335 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 336 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 337 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 338 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 339 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 340 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 341 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 342 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 343 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 344 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 345 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 346 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 347 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 348 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 349 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 350 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 351 AMIGAHW_ANNOUNCE(LISA, "LISA "); 352 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 353 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 354 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 355 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 356 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 357 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 358 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 359 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 360 if (AMIGAHW_PRESENT(ZORRO)) 361 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 362 pr_cont("\n"); 363 364 #undef AMIGAHW_ANNOUNCE 365 } 366 367 368 static unsigned long amiga_random_get_entropy(void) 369 { 370 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 371 return *(unsigned long *)&amiga_custom.vposr; 372 } 373 374 375 /* 376 * Setup the Amiga configuration info 377 */ 378 379 void __init config_amiga(void) 380 { 381 int i; 382 383 amiga_identify(); 384 385 /* Yuk, we don't have PCI memory */ 386 iomem_resource.name = "Memory"; 387 for (i = 0; i < 4; i++) 388 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 389 390 mach_sched_init = amiga_sched_init; 391 mach_init_IRQ = amiga_init_IRQ; 392 mach_get_model = amiga_get_model; 393 mach_get_hardware_list = amiga_get_hardware_list; 394 mach_reset = amiga_reset; 395 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 396 mach_beep = amiga_mksound; 397 #endif 398 399 #ifdef CONFIG_HEARTBEAT 400 mach_heartbeat = amiga_heartbeat; 401 #endif 402 403 mach_random_get_entropy = amiga_random_get_entropy; 404 405 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 406 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 407 408 /* clear all DMA bits */ 409 amiga_custom.dmacon = DMAF_ALL; 410 /* ensure that the DMA master bit is set */ 411 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 412 413 /* don't use Z2 RAM as system memory on Z3 capable machines */ 414 if (AMIGAHW_PRESENT(ZORRO3)) { 415 int i, j; 416 u32 disabled_z2mem = 0; 417 418 for (i = 0; i < m68k_num_memory; i++) { 419 if (m68k_memory[i].addr < 16*1024*1024) { 420 if (i == 0) { 421 /* don't cut off the branch we're sitting on */ 422 pr_warn("Warning: kernel runs in Zorro II memory\n"); 423 continue; 424 } 425 disabled_z2mem += m68k_memory[i].size; 426 m68k_num_memory--; 427 for (j = i; j < m68k_num_memory; j++) 428 m68k_memory[j] = m68k_memory[j+1]; 429 i--; 430 } 431 } 432 if (disabled_z2mem) 433 pr_info("%dK of Zorro II memory will not be used as system memory\n", 434 disabled_z2mem>>10); 435 } 436 437 /* request all RAM */ 438 for (i = 0; i < m68k_num_memory; i++) { 439 ram_resource[i].name = 440 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 441 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 442 "16-bit Slow RAM"; 443 ram_resource[i].start = m68k_memory[i].addr; 444 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 445 request_resource(&iomem_resource, &ram_resource[i]); 446 } 447 448 /* initialize chipram allocator */ 449 amiga_chip_init(); 450 451 /* our beloved beeper */ 452 if (AMIGAHW_PRESENT(AMI_AUDIO)) 453 amiga_init_sound(); 454 455 /* 456 * if it is an A3000, set the magic bit that forces 457 * a hard rekick 458 */ 459 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 460 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 461 } 462 463 static u64 amiga_read_clk(struct clocksource *cs); 464 465 static struct clocksource amiga_clk = { 466 .name = "ciab", 467 .rating = 250, 468 .read = amiga_read_clk, 469 .mask = CLOCKSOURCE_MASK(32), 470 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 471 }; 472 473 static unsigned short jiffy_ticks; 474 static u32 clk_total, clk_offset; 475 476 static irqreturn_t ciab_timer_handler(int irq, void *dev_id) 477 { 478 clk_total += jiffy_ticks; 479 clk_offset = 0; 480 legacy_timer_tick(1); 481 timer_heartbeat(); 482 483 return IRQ_HANDLED; 484 } 485 486 static void __init amiga_sched_init(void) 487 { 488 static struct resource sched_res = { 489 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 490 }; 491 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 492 493 if (request_resource(&mb_resources._ciab, &sched_res)) 494 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 495 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 496 ciab.talo = jiffy_ticks % 256; 497 ciab.tahi = jiffy_ticks / 256; 498 499 /* install interrupt service routine for CIAB Timer A 500 * 501 * Please don't change this to use ciaa, as it interferes with the 502 * SCSI code. We'll have to take a look at this later 503 */ 504 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 505 "timer", NULL)) 506 pr_err("Couldn't register timer interrupt\n"); 507 /* start timer */ 508 ciab.cra |= 0x11; 509 510 clocksource_register_hz(&amiga_clk, amiga_eclock); 511 } 512 513 static u64 amiga_read_clk(struct clocksource *cs) 514 { 515 unsigned short hi, lo, hi2; 516 unsigned long flags; 517 u32 ticks; 518 519 local_irq_save(flags); 520 521 /* read CIA B timer A current value */ 522 hi = ciab.tahi; 523 lo = ciab.talo; 524 hi2 = ciab.tahi; 525 526 if (hi != hi2) { 527 lo = ciab.talo; 528 hi = hi2; 529 } 530 531 ticks = hi << 8 | lo; 532 533 if (ticks > jiffy_ticks / 2) 534 /* check for pending interrupt */ 535 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 536 clk_offset = jiffy_ticks; 537 538 ticks = jiffy_ticks - ticks; 539 ticks += clk_offset + clk_total; 540 541 local_irq_restore(flags); 542 543 return ticks; 544 } 545 546 static void amiga_reset(void) __noreturn; 547 548 static void amiga_reset(void) 549 { 550 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 551 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 552 553 local_irq_disable(); 554 if (CPU_IS_040_OR_060) 555 /* Setup transparent translation registers for mapping 556 * of 16 MB kernel segment before disabling translation 557 */ 558 asm volatile ("\n" 559 " move.l %0,%%d0\n" 560 " and.l #0xff000000,%%d0\n" 561 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 562 " .chip 68040\n" 563 " movec %%d0,%%itt0\n" 564 " movec %%d0,%%dtt0\n" 565 " .chip 68k\n" 566 " jmp %0@\n" 567 : /* no outputs */ 568 : "a" (jmp_addr040) 569 : "d0"); 570 else 571 /* for 680[23]0, just disable translation and jump to the physical 572 * address of the label 573 */ 574 asm volatile ("\n" 575 " pmove %%tc,%@\n" 576 " bclr #7,%@\n" 577 " pmove %@,%%tc\n" 578 " jmp %0@\n" 579 : /* no outputs */ 580 : "a" (jmp_addr)); 581 jmp_addr_label040: 582 /* disable translation on '040 now */ 583 asm volatile ("\n" 584 " moveq #0,%%d0\n" 585 " .chip 68040\n" 586 " movec %%d0,%%tc\n" /* disable MMU */ 587 " .chip 68k\n" 588 : /* no outputs */ 589 : /* no inputs */ 590 : "d0"); 591 592 jmp_addr_label: 593 /* pickup reset address from AmigaOS ROM, reset devices and jump 594 * to reset address 595 */ 596 asm volatile ("\n" 597 " move.w #0x2700,%sr\n" 598 " lea 0x01000000,%a0\n" 599 " sub.l %a0@(-0x14),%a0\n" 600 " move.l %a0@(4),%a0\n" 601 " subq.l #2,%a0\n" 602 " jra 1f\n" 603 /* align on a longword boundary */ 604 " " __ALIGN_STR "\n" 605 "1:\n" 606 " reset\n" 607 " jmp %a0@"); 608 609 for (;;) 610 ; 611 } 612 613 614 /* 615 * Debugging 616 */ 617 618 #define SAVEKMSG_MAXMEM 128*1024 619 620 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 621 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 622 623 struct savekmsg { 624 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 625 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 626 unsigned long magicptr; /* address of magic1 */ 627 unsigned long size; 628 char data[]; 629 }; 630 631 static struct savekmsg *savekmsg; 632 633 static void amiga_mem_console_write(struct console *co, const char *s, 634 unsigned int count) 635 { 636 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 637 memcpy(savekmsg->data + savekmsg->size, s, count); 638 savekmsg->size += count; 639 } 640 } 641 642 static int __init amiga_savekmsg_setup(char *arg) 643 { 644 bool registered; 645 646 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 647 return 0; 648 649 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 650 pr_err("Not enough chipram for debugging\n"); 651 return -ENOMEM; 652 } 653 654 /* Just steal the block, the chipram allocator isn't functional yet */ 655 amiga_chip_size -= SAVEKMSG_MAXMEM; 656 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 657 savekmsg->magic1 = SAVEKMSG_MAGIC1; 658 savekmsg->magic2 = SAVEKMSG_MAGIC2; 659 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 660 savekmsg->size = 0; 661 662 registered = !!amiga_console_driver.write; 663 amiga_console_driver.write = amiga_mem_console_write; 664 if (!registered) 665 register_console(&amiga_console_driver); 666 return 0; 667 } 668 669 early_param("debug", amiga_savekmsg_setup); 670 671 static void amiga_serial_putc(char c) 672 { 673 amiga_custom.serdat = (unsigned char)c | 0x100; 674 while (!(amiga_custom.serdatr & 0x2000)) 675 ; 676 } 677 678 static void amiga_serial_console_write(struct console *co, const char *s, 679 unsigned int count) 680 { 681 while (count--) { 682 if (*s == '\n') 683 amiga_serial_putc('\r'); 684 amiga_serial_putc(*s++); 685 } 686 } 687 688 #if 0 689 void amiga_serial_puts(const char *s) 690 { 691 amiga_serial_console_write(NULL, s, strlen(s)); 692 } 693 694 int amiga_serial_console_wait_key(struct console *co) 695 { 696 int ch; 697 698 while (!(amiga_custom.intreqr & IF_RBF)) 699 barrier(); 700 ch = amiga_custom.serdatr & 0xff; 701 /* clear the interrupt, so that another character can be read */ 702 amiga_custom.intreq = IF_RBF; 703 return ch; 704 } 705 706 void amiga_serial_gets(struct console *co, char *s, int len) 707 { 708 int ch, cnt = 0; 709 710 while (1) { 711 ch = amiga_serial_console_wait_key(co); 712 713 /* Check for backspace. */ 714 if (ch == 8 || ch == 127) { 715 if (cnt == 0) { 716 amiga_serial_putc('\007'); 717 continue; 718 } 719 cnt--; 720 amiga_serial_puts("\010 \010"); 721 continue; 722 } 723 724 /* Check for enter. */ 725 if (ch == 10 || ch == 13) 726 break; 727 728 /* See if line is too long. */ 729 if (cnt >= len + 1) { 730 amiga_serial_putc(7); 731 cnt--; 732 continue; 733 } 734 735 /* Store and echo character. */ 736 s[cnt++] = ch; 737 amiga_serial_putc(ch); 738 } 739 /* Print enter. */ 740 amiga_serial_puts("\r\n"); 741 s[cnt] = 0; 742 } 743 #endif 744 745 static int __init amiga_debug_setup(char *arg) 746 { 747 bool registered; 748 749 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 750 return 0; 751 752 /* no initialization required (?) */ 753 registered = !!amiga_console_driver.write; 754 amiga_console_driver.write = amiga_serial_console_write; 755 if (!registered) 756 register_console(&amiga_console_driver); 757 return 0; 758 } 759 760 early_param("debug", amiga_debug_setup); 761 762 #ifdef CONFIG_HEARTBEAT 763 static void amiga_heartbeat(int on) 764 { 765 if (on) 766 ciaa.pra &= ~2; 767 else 768 ciaa.pra |= 2; 769 } 770 #endif 771 772 /* 773 * Amiga specific parts of /proc 774 */ 775 776 static void amiga_get_model(char *model) 777 { 778 strcpy(model, amiga_model_name); 779 } 780 781 782 static void amiga_get_hardware_list(struct seq_file *m) 783 { 784 if (AMIGAHW_PRESENT(CHIP_RAM)) 785 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 786 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 787 amiga_psfreq, amiga_eclock); 788 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 789 char *type; 790 switch (amiga_chipset) { 791 case CS_OCS: 792 type = "OCS"; 793 break; 794 case CS_ECS: 795 type = "ECS"; 796 break; 797 case CS_AGA: 798 type = "AGA"; 799 break; 800 default: 801 type = "Old or Unknown"; 802 break; 803 } 804 seq_printf(m, "Graphics:\t%s\n", type); 805 } 806 807 #define AMIGAHW_ANNOUNCE(name, str) \ 808 if (AMIGAHW_PRESENT(name)) \ 809 seq_printf (m, "\t%s\n", str) 810 811 seq_puts(m, "Detected hardware:\n"); 812 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 813 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 814 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 815 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 816 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 817 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 818 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 819 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 820 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 821 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 822 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 823 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 824 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 825 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 826 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 827 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 828 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 829 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 830 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 831 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 832 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 833 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 834 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 835 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 836 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 837 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 838 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 839 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 840 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 841 #ifdef CONFIG_ZORRO 842 if (AMIGAHW_PRESENT(ZORRO)) 843 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 844 "Device%s\n", 845 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 846 zorro_num_autocon, str_plural(zorro_num_autocon)); 847 #endif /* CONFIG_ZORRO */ 848 849 #undef AMIGAHW_ANNOUNCE 850 } 851 852 /* 853 * The Amiga keyboard driver needs key_maps, but we cannot export it in 854 * drivers/char/defkeymap.c, as it is autogenerated 855 */ 856 #ifdef CONFIG_VT 857 EXPORT_SYMBOL_GPL(key_maps); 858 #endif 859