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/pgtable.h> 36 #include <asm/amigahw.h> 37 #include <asm/amigaints.h> 38 #include <asm/irq.h> 39 #include <asm/machdep.h> 40 #include <asm/io.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(irq_handler_t handler); 97 static void amiga_get_model(char *model); 98 static void amiga_get_hardware_list(struct seq_file *m); 99 extern void amiga_mksound(unsigned int count, unsigned int ticks); 100 static void amiga_reset(void); 101 extern void amiga_init_sound(void); 102 static void amiga_mem_console_write(struct console *co, const char *b, 103 unsigned int count); 104 #ifdef CONFIG_HEARTBEAT 105 static void amiga_heartbeat(int on); 106 #endif 107 108 static struct console amiga_console_driver = { 109 .name = "debug", 110 .flags = CON_PRINTBUFFER, 111 .index = -1, 112 }; 113 114 115 /* 116 * Motherboard Resources present in all Amiga models 117 */ 118 119 static struct { 120 struct resource _ciab, _ciaa, _custom, _kickstart; 121 } mb_resources = { 122 ._ciab = { 123 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 124 }, 125 ._ciaa = { 126 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 127 }, 128 ._custom = { 129 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 130 }, 131 ._kickstart = { 132 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 133 } 134 }; 135 136 static struct resource ram_resource[NUM_MEMINFO]; 137 138 139 /* 140 * Parse an Amiga-specific record in the bootinfo 141 */ 142 143 int __init amiga_parse_bootinfo(const struct bi_record *record) 144 { 145 int unknown = 0; 146 const void *data = record->data; 147 148 switch (be16_to_cpu(record->tag)) { 149 case BI_AMIGA_MODEL: 150 amiga_model = be32_to_cpup(data); 151 break; 152 153 case BI_AMIGA_ECLOCK: 154 amiga_eclock = be32_to_cpup(data); 155 break; 156 157 case BI_AMIGA_CHIPSET: 158 amiga_chipset = be32_to_cpup(data); 159 break; 160 161 case BI_AMIGA_CHIP_SIZE: 162 amiga_chip_size = be32_to_cpup(data); 163 break; 164 165 case BI_AMIGA_VBLANK: 166 amiga_vblank = *(const __u8 *)data; 167 break; 168 169 case BI_AMIGA_PSFREQ: 170 amiga_psfreq = *(const __u8 *)data; 171 break; 172 173 case BI_AMIGA_AUTOCON: 174 #ifdef CONFIG_ZORRO 175 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 176 const struct ConfigDev *cd = data; 177 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; 178 dev->rom = cd->cd_Rom; 179 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); 180 dev->slotsize = be16_to_cpu(cd->cd_SlotSize); 181 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); 182 dev->boardsize = be32_to_cpu(cd->cd_BoardSize); 183 } else 184 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 185 #endif /* CONFIG_ZORRO */ 186 break; 187 188 case BI_AMIGA_SERPER: 189 /* serial port period: ignored here */ 190 break; 191 192 default: 193 unknown = 1; 194 } 195 return unknown; 196 } 197 198 /* 199 * Identify builtin hardware 200 */ 201 202 static void __init amiga_identify(void) 203 { 204 /* Fill in some default values, if necessary */ 205 if (amiga_eclock == 0) 206 amiga_eclock = 709379; 207 208 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 209 210 pr_info("Amiga hardware found: "); 211 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 212 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 213 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 214 } 215 216 switch (amiga_model) { 217 case AMI_UNKNOWN: 218 goto Generic; 219 220 case AMI_600: 221 case AMI_1200: 222 AMIGAHW_SET(A1200_IDE); 223 AMIGAHW_SET(PCMCIA); 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 goto Generic; 231 232 case AMI_3000: 233 case AMI_3000T: 234 AMIGAHW_SET(AMBER_FF); 235 AMIGAHW_SET(MAGIC_REKICK); 236 /* fall through */ 237 case AMI_3000PLUS: 238 AMIGAHW_SET(A3000_SCSI); 239 AMIGAHW_SET(A3000_CLK); 240 AMIGAHW_SET(ZORRO3); 241 goto Generic; 242 243 case AMI_4000T: 244 AMIGAHW_SET(A4000_SCSI); 245 /* fall through */ 246 case AMI_4000: 247 AMIGAHW_SET(A4000_IDE); 248 AMIGAHW_SET(A3000_CLK); 249 AMIGAHW_SET(ZORRO3); 250 goto Generic; 251 252 case AMI_CDTV: 253 case AMI_CD32: 254 AMIGAHW_SET(CD_ROM); 255 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 256 goto Generic; 257 258 Generic: 259 AMIGAHW_SET(AMI_VIDEO); 260 AMIGAHW_SET(AMI_BLITTER); 261 AMIGAHW_SET(AMI_AUDIO); 262 AMIGAHW_SET(AMI_FLOPPY); 263 AMIGAHW_SET(AMI_KEYBOARD); 264 AMIGAHW_SET(AMI_MOUSE); 265 AMIGAHW_SET(AMI_SERIAL); 266 AMIGAHW_SET(AMI_PARALLEL); 267 AMIGAHW_SET(CHIP_RAM); 268 AMIGAHW_SET(PAULA); 269 270 switch (amiga_chipset) { 271 case CS_OCS: 272 case CS_ECS: 273 case CS_AGA: 274 switch (amiga_custom.deniseid & 0xf) { 275 case 0x0c: 276 AMIGAHW_SET(DENISE_HR); 277 break; 278 case 0x08: 279 AMIGAHW_SET(LISA); 280 break; 281 } 282 break; 283 default: 284 AMIGAHW_SET(DENISE); 285 break; 286 } 287 switch ((amiga_custom.vposr>>8) & 0x7f) { 288 case 0x00: 289 AMIGAHW_SET(AGNUS_PAL); 290 break; 291 case 0x10: 292 AMIGAHW_SET(AGNUS_NTSC); 293 break; 294 case 0x20: 295 case 0x21: 296 AMIGAHW_SET(AGNUS_HR_PAL); 297 break; 298 case 0x30: 299 case 0x31: 300 AMIGAHW_SET(AGNUS_HR_NTSC); 301 break; 302 case 0x22: 303 case 0x23: 304 AMIGAHW_SET(ALICE_PAL); 305 break; 306 case 0x32: 307 case 0x33: 308 AMIGAHW_SET(ALICE_NTSC); 309 break; 310 } 311 AMIGAHW_SET(ZORRO); 312 break; 313 314 case AMI_DRACO: 315 panic("No support for Draco yet"); 316 317 default: 318 panic("Unknown Amiga Model"); 319 } 320 321 #define AMIGAHW_ANNOUNCE(name, str) \ 322 if (AMIGAHW_PRESENT(name)) \ 323 pr_cont(str) 324 325 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 326 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 327 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 328 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 329 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 330 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 331 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 332 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 333 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 334 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 335 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 336 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 337 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 338 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 339 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 340 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 341 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 342 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 343 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 344 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 345 AMIGAHW_ANNOUNCE(LISA, "LISA "); 346 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 347 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 348 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 349 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 350 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 351 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 352 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 353 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 354 if (AMIGAHW_PRESENT(ZORRO)) 355 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 356 pr_cont("\n"); 357 358 #undef AMIGAHW_ANNOUNCE 359 } 360 361 362 static unsigned long amiga_random_get_entropy(void) 363 { 364 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 365 return *(unsigned long *)&amiga_custom.vposr; 366 } 367 368 369 /* 370 * Setup the Amiga configuration info 371 */ 372 373 void __init config_amiga(void) 374 { 375 int i; 376 377 amiga_identify(); 378 379 /* Yuk, we don't have PCI memory */ 380 iomem_resource.name = "Memory"; 381 for (i = 0; i < 4; i++) 382 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 383 384 mach_sched_init = amiga_sched_init; 385 mach_init_IRQ = amiga_init_IRQ; 386 mach_get_model = amiga_get_model; 387 mach_get_hardware_list = amiga_get_hardware_list; 388 389 /* 390 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI 391 * code will not be able to allocate any mem for transfers, unless we are 392 * dealing with a Z2 mem only system. /Jes 393 */ 394 mach_max_dma_address = 0xffffffff; 395 396 mach_reset = amiga_reset; 397 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 398 mach_beep = amiga_mksound; 399 #endif 400 401 #ifdef CONFIG_HEARTBEAT 402 mach_heartbeat = amiga_heartbeat; 403 #endif 404 405 mach_random_get_entropy = amiga_random_get_entropy; 406 407 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 408 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 409 410 /* clear all DMA bits */ 411 amiga_custom.dmacon = DMAF_ALL; 412 /* ensure that the DMA master bit is set */ 413 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 414 415 /* don't use Z2 RAM as system memory on Z3 capable machines */ 416 if (AMIGAHW_PRESENT(ZORRO3)) { 417 int i, j; 418 u32 disabled_z2mem = 0; 419 420 for (i = 0; i < m68k_num_memory; i++) { 421 if (m68k_memory[i].addr < 16*1024*1024) { 422 if (i == 0) { 423 /* don't cut off the branch we're sitting on */ 424 pr_warn("Warning: kernel runs in Zorro II memory\n"); 425 continue; 426 } 427 disabled_z2mem += m68k_memory[i].size; 428 m68k_num_memory--; 429 for (j = i; j < m68k_num_memory; j++) 430 m68k_memory[j] = m68k_memory[j+1]; 431 i--; 432 } 433 } 434 if (disabled_z2mem) 435 pr_info("%dK of Zorro II memory will not be used as system memory\n", 436 disabled_z2mem>>10); 437 } 438 439 /* request all RAM */ 440 for (i = 0; i < m68k_num_memory; i++) { 441 ram_resource[i].name = 442 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 443 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 444 "16-bit Slow RAM"; 445 ram_resource[i].start = m68k_memory[i].addr; 446 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 447 request_resource(&iomem_resource, &ram_resource[i]); 448 } 449 450 /* initialize chipram allocator */ 451 amiga_chip_init(); 452 453 /* our beloved beeper */ 454 if (AMIGAHW_PRESENT(AMI_AUDIO)) 455 amiga_init_sound(); 456 457 /* 458 * if it is an A3000, set the magic bit that forces 459 * a hard rekick 460 */ 461 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 462 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 463 } 464 465 static u64 amiga_read_clk(struct clocksource *cs); 466 467 static struct clocksource amiga_clk = { 468 .name = "ciab", 469 .rating = 250, 470 .read = amiga_read_clk, 471 .mask = CLOCKSOURCE_MASK(32), 472 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 473 }; 474 475 static unsigned short jiffy_ticks; 476 static u32 clk_total, clk_offset; 477 478 static irqreturn_t ciab_timer_handler(int irq, void *dev_id) 479 { 480 irq_handler_t timer_routine = dev_id; 481 482 clk_total += jiffy_ticks; 483 clk_offset = 0; 484 timer_routine(0, NULL); 485 486 return IRQ_HANDLED; 487 } 488 489 static void __init amiga_sched_init(irq_handler_t timer_routine) 490 { 491 static struct resource sched_res = { 492 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 493 }; 494 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 495 496 if (request_resource(&mb_resources._ciab, &sched_res)) 497 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 498 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 499 ciab.talo = jiffy_ticks % 256; 500 ciab.tahi = jiffy_ticks / 256; 501 502 /* install interrupt service routine for CIAB Timer A 503 * 504 * Please don't change this to use ciaa, as it interferes with the 505 * SCSI code. We'll have to take a look at this later 506 */ 507 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 508 "timer", timer_routine)) 509 pr_err("Couldn't register timer interrupt\n"); 510 /* start timer */ 511 ciab.cra |= 0x11; 512 513 clocksource_register_hz(&amiga_clk, amiga_eclock); 514 } 515 516 static u64 amiga_read_clk(struct clocksource *cs) 517 { 518 unsigned short hi, lo, hi2; 519 unsigned long flags; 520 u32 ticks; 521 522 local_irq_save(flags); 523 524 /* read CIA B timer A current value */ 525 hi = ciab.tahi; 526 lo = ciab.talo; 527 hi2 = ciab.tahi; 528 529 if (hi != hi2) { 530 lo = ciab.talo; 531 hi = hi2; 532 } 533 534 ticks = hi << 8 | lo; 535 536 if (ticks > jiffy_ticks / 2) 537 /* check for pending interrupt */ 538 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 539 clk_offset = jiffy_ticks; 540 541 ticks = jiffy_ticks - ticks; 542 ticks += clk_offset + clk_total; 543 544 local_irq_restore(flags); 545 546 return ticks; 547 } 548 549 static void amiga_reset(void) __noreturn; 550 551 static void amiga_reset(void) 552 { 553 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 554 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 555 556 local_irq_disable(); 557 if (CPU_IS_040_OR_060) 558 /* Setup transparent translation registers for mapping 559 * of 16 MB kernel segment before disabling translation 560 */ 561 asm volatile ("\n" 562 " move.l %0,%%d0\n" 563 " and.l #0xff000000,%%d0\n" 564 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 565 " .chip 68040\n" 566 " movec %%d0,%%itt0\n" 567 " movec %%d0,%%dtt0\n" 568 " .chip 68k\n" 569 " jmp %0@\n" 570 : /* no outputs */ 571 : "a" (jmp_addr040) 572 : "d0"); 573 else 574 /* for 680[23]0, just disable translation and jump to the physical 575 * address of the label 576 */ 577 asm volatile ("\n" 578 " pmove %%tc,%@\n" 579 " bclr #7,%@\n" 580 " pmove %@,%%tc\n" 581 " jmp %0@\n" 582 : /* no outputs */ 583 : "a" (jmp_addr)); 584 jmp_addr_label040: 585 /* disable translation on '040 now */ 586 asm volatile ("\n" 587 " moveq #0,%%d0\n" 588 " .chip 68040\n" 589 " movec %%d0,%%tc\n" /* disable MMU */ 590 " .chip 68k\n" 591 : /* no outputs */ 592 : /* no inputs */ 593 : "d0"); 594 595 jmp_addr_label: 596 /* pickup reset address from AmigaOS ROM, reset devices and jump 597 * to reset address 598 */ 599 asm volatile ("\n" 600 " move.w #0x2700,%sr\n" 601 " lea 0x01000000,%a0\n" 602 " sub.l %a0@(-0x14),%a0\n" 603 " move.l %a0@(4),%a0\n" 604 " subq.l #2,%a0\n" 605 " jra 1f\n" 606 /* align on a longword boundary */ 607 " " __ALIGN_STR "\n" 608 "1:\n" 609 " reset\n" 610 " jmp %a0@"); 611 612 for (;;) 613 ; 614 } 615 616 617 /* 618 * Debugging 619 */ 620 621 #define SAVEKMSG_MAXMEM 128*1024 622 623 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 624 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 625 626 struct savekmsg { 627 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 628 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 629 unsigned long magicptr; /* address of magic1 */ 630 unsigned long size; 631 char data[0]; 632 }; 633 634 static struct savekmsg *savekmsg; 635 636 static void amiga_mem_console_write(struct console *co, const char *s, 637 unsigned int count) 638 { 639 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 640 memcpy(savekmsg->data + savekmsg->size, s, count); 641 savekmsg->size += count; 642 } 643 } 644 645 static int __init amiga_savekmsg_setup(char *arg) 646 { 647 bool registered; 648 649 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 650 return 0; 651 652 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 653 pr_err("Not enough chipram for debugging\n"); 654 return -ENOMEM; 655 } 656 657 /* Just steal the block, the chipram allocator isn't functional yet */ 658 amiga_chip_size -= SAVEKMSG_MAXMEM; 659 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 660 savekmsg->magic1 = SAVEKMSG_MAGIC1; 661 savekmsg->magic2 = SAVEKMSG_MAGIC2; 662 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 663 savekmsg->size = 0; 664 665 registered = !!amiga_console_driver.write; 666 amiga_console_driver.write = amiga_mem_console_write; 667 if (!registered) 668 register_console(&amiga_console_driver); 669 return 0; 670 } 671 672 early_param("debug", amiga_savekmsg_setup); 673 674 static void amiga_serial_putc(char c) 675 { 676 amiga_custom.serdat = (unsigned char)c | 0x100; 677 while (!(amiga_custom.serdatr & 0x2000)) 678 ; 679 } 680 681 static void amiga_serial_console_write(struct console *co, const char *s, 682 unsigned int count) 683 { 684 while (count--) { 685 if (*s == '\n') 686 amiga_serial_putc('\r'); 687 amiga_serial_putc(*s++); 688 } 689 } 690 691 #if 0 692 void amiga_serial_puts(const char *s) 693 { 694 amiga_serial_console_write(NULL, s, strlen(s)); 695 } 696 697 int amiga_serial_console_wait_key(struct console *co) 698 { 699 int ch; 700 701 while (!(amiga_custom.intreqr & IF_RBF)) 702 barrier(); 703 ch = amiga_custom.serdatr & 0xff; 704 /* clear the interrupt, so that another character can be read */ 705 amiga_custom.intreq = IF_RBF; 706 return ch; 707 } 708 709 void amiga_serial_gets(struct console *co, char *s, int len) 710 { 711 int ch, cnt = 0; 712 713 while (1) { 714 ch = amiga_serial_console_wait_key(co); 715 716 /* Check for backspace. */ 717 if (ch == 8 || ch == 127) { 718 if (cnt == 0) { 719 amiga_serial_putc('\007'); 720 continue; 721 } 722 cnt--; 723 amiga_serial_puts("\010 \010"); 724 continue; 725 } 726 727 /* Check for enter. */ 728 if (ch == 10 || ch == 13) 729 break; 730 731 /* See if line is too long. */ 732 if (cnt >= len + 1) { 733 amiga_serial_putc(7); 734 cnt--; 735 continue; 736 } 737 738 /* Store and echo character. */ 739 s[cnt++] = ch; 740 amiga_serial_putc(ch); 741 } 742 /* Print enter. */ 743 amiga_serial_puts("\r\n"); 744 s[cnt] = 0; 745 } 746 #endif 747 748 static int __init amiga_debug_setup(char *arg) 749 { 750 bool registered; 751 752 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 753 return 0; 754 755 /* no initialization required (?) */ 756 registered = !!amiga_console_driver.write; 757 amiga_console_driver.write = amiga_serial_console_write; 758 if (!registered) 759 register_console(&amiga_console_driver); 760 return 0; 761 } 762 763 early_param("debug", amiga_debug_setup); 764 765 #ifdef CONFIG_HEARTBEAT 766 static void amiga_heartbeat(int on) 767 { 768 if (on) 769 ciaa.pra &= ~2; 770 else 771 ciaa.pra |= 2; 772 } 773 #endif 774 775 /* 776 * Amiga specific parts of /proc 777 */ 778 779 static void amiga_get_model(char *model) 780 { 781 strcpy(model, amiga_model_name); 782 } 783 784 785 static void amiga_get_hardware_list(struct seq_file *m) 786 { 787 if (AMIGAHW_PRESENT(CHIP_RAM)) 788 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 789 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 790 amiga_psfreq, amiga_eclock); 791 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 792 char *type; 793 switch (amiga_chipset) { 794 case CS_OCS: 795 type = "OCS"; 796 break; 797 case CS_ECS: 798 type = "ECS"; 799 break; 800 case CS_AGA: 801 type = "AGA"; 802 break; 803 default: 804 type = "Old or Unknown"; 805 break; 806 } 807 seq_printf(m, "Graphics:\t%s\n", type); 808 } 809 810 #define AMIGAHW_ANNOUNCE(name, str) \ 811 if (AMIGAHW_PRESENT(name)) \ 812 seq_printf (m, "\t%s\n", str) 813 814 seq_puts(m, "Detected hardware:\n"); 815 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 816 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 817 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 818 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 819 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 820 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 821 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 822 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 823 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 824 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 825 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 826 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 827 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 828 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 829 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 830 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 831 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 832 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 833 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 834 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 835 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 836 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 837 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 838 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 839 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 840 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 841 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 842 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 843 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 844 #ifdef CONFIG_ZORRO 845 if (AMIGAHW_PRESENT(ZORRO)) 846 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 847 "Device%s\n", 848 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 849 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 850 #endif /* CONFIG_ZORRO */ 851 852 #undef AMIGAHW_ANNOUNCE 853 } 854 855 /* 856 * The Amiga keyboard driver needs key_maps, but we cannot export it in 857 * drivers/char/defkeymap.c, as it is autogenerated 858 */ 859 #ifdef CONFIG_HW_CONSOLE 860 EXPORT_SYMBOL_GPL(key_maps); 861 #endif 862