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 fallthrough; 225 case AMI_500: 226 case AMI_500PLUS: 227 case AMI_1000: 228 case AMI_2000: 229 case AMI_2500: 230 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 231 goto Generic; 232 233 case AMI_3000: 234 case AMI_3000T: 235 AMIGAHW_SET(AMBER_FF); 236 AMIGAHW_SET(MAGIC_REKICK); 237 fallthrough; 238 case AMI_3000PLUS: 239 AMIGAHW_SET(A3000_SCSI); 240 AMIGAHW_SET(A3000_CLK); 241 AMIGAHW_SET(ZORRO3); 242 goto Generic; 243 244 case AMI_4000T: 245 AMIGAHW_SET(A4000_SCSI); 246 fallthrough; 247 case AMI_4000: 248 AMIGAHW_SET(A4000_IDE); 249 AMIGAHW_SET(A3000_CLK); 250 AMIGAHW_SET(ZORRO3); 251 goto Generic; 252 253 case AMI_CDTV: 254 case AMI_CD32: 255 AMIGAHW_SET(CD_ROM); 256 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 257 goto Generic; 258 259 Generic: 260 AMIGAHW_SET(AMI_VIDEO); 261 AMIGAHW_SET(AMI_BLITTER); 262 AMIGAHW_SET(AMI_AUDIO); 263 AMIGAHW_SET(AMI_FLOPPY); 264 AMIGAHW_SET(AMI_KEYBOARD); 265 AMIGAHW_SET(AMI_MOUSE); 266 AMIGAHW_SET(AMI_SERIAL); 267 AMIGAHW_SET(AMI_PARALLEL); 268 AMIGAHW_SET(CHIP_RAM); 269 AMIGAHW_SET(PAULA); 270 271 switch (amiga_chipset) { 272 case CS_OCS: 273 case CS_ECS: 274 case CS_AGA: 275 switch (amiga_custom.deniseid & 0xf) { 276 case 0x0c: 277 AMIGAHW_SET(DENISE_HR); 278 break; 279 case 0x08: 280 AMIGAHW_SET(LISA); 281 break; 282 } 283 break; 284 default: 285 AMIGAHW_SET(DENISE); 286 break; 287 } 288 switch ((amiga_custom.vposr>>8) & 0x7f) { 289 case 0x00: 290 AMIGAHW_SET(AGNUS_PAL); 291 break; 292 case 0x10: 293 AMIGAHW_SET(AGNUS_NTSC); 294 break; 295 case 0x20: 296 case 0x21: 297 AMIGAHW_SET(AGNUS_HR_PAL); 298 break; 299 case 0x30: 300 case 0x31: 301 AMIGAHW_SET(AGNUS_HR_NTSC); 302 break; 303 case 0x22: 304 case 0x23: 305 AMIGAHW_SET(ALICE_PAL); 306 break; 307 case 0x32: 308 case 0x33: 309 AMIGAHW_SET(ALICE_NTSC); 310 break; 311 } 312 AMIGAHW_SET(ZORRO); 313 break; 314 315 case AMI_DRACO: 316 panic("No support for Draco yet"); 317 318 default: 319 panic("Unknown Amiga Model"); 320 } 321 322 #define AMIGAHW_ANNOUNCE(name, str) \ 323 if (AMIGAHW_PRESENT(name)) \ 324 pr_cont(str) 325 326 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 327 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 328 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 329 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 330 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 331 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 332 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 333 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 334 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 335 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 336 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 337 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 338 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 339 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 340 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 341 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 342 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 343 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 344 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 345 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 346 AMIGAHW_ANNOUNCE(LISA, "LISA "); 347 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 348 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 349 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 350 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 351 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 352 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 353 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 354 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 355 if (AMIGAHW_PRESENT(ZORRO)) 356 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 357 pr_cont("\n"); 358 359 #undef AMIGAHW_ANNOUNCE 360 } 361 362 363 static unsigned long amiga_random_get_entropy(void) 364 { 365 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 366 return *(unsigned long *)&amiga_custom.vposr; 367 } 368 369 370 /* 371 * Setup the Amiga configuration info 372 */ 373 374 void __init config_amiga(void) 375 { 376 int i; 377 378 amiga_identify(); 379 380 /* Yuk, we don't have PCI memory */ 381 iomem_resource.name = "Memory"; 382 for (i = 0; i < 4; i++) 383 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 384 385 mach_sched_init = amiga_sched_init; 386 mach_init_IRQ = amiga_init_IRQ; 387 mach_get_model = amiga_get_model; 388 mach_get_hardware_list = amiga_get_hardware_list; 389 390 /* 391 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI 392 * code will not be able to allocate any mem for transfers, unless we are 393 * dealing with a Z2 mem only system. /Jes 394 */ 395 mach_max_dma_address = 0xffffffff; 396 397 mach_reset = amiga_reset; 398 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 399 mach_beep = amiga_mksound; 400 #endif 401 402 #ifdef CONFIG_HEARTBEAT 403 mach_heartbeat = amiga_heartbeat; 404 #endif 405 406 mach_random_get_entropy = amiga_random_get_entropy; 407 408 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 409 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 410 411 /* clear all DMA bits */ 412 amiga_custom.dmacon = DMAF_ALL; 413 /* ensure that the DMA master bit is set */ 414 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 415 416 /* don't use Z2 RAM as system memory on Z3 capable machines */ 417 if (AMIGAHW_PRESENT(ZORRO3)) { 418 int i, j; 419 u32 disabled_z2mem = 0; 420 421 for (i = 0; i < m68k_num_memory; i++) { 422 if (m68k_memory[i].addr < 16*1024*1024) { 423 if (i == 0) { 424 /* don't cut off the branch we're sitting on */ 425 pr_warn("Warning: kernel runs in Zorro II memory\n"); 426 continue; 427 } 428 disabled_z2mem += m68k_memory[i].size; 429 m68k_num_memory--; 430 for (j = i; j < m68k_num_memory; j++) 431 m68k_memory[j] = m68k_memory[j+1]; 432 i--; 433 } 434 } 435 if (disabled_z2mem) 436 pr_info("%dK of Zorro II memory will not be used as system memory\n", 437 disabled_z2mem>>10); 438 } 439 440 /* request all RAM */ 441 for (i = 0; i < m68k_num_memory; i++) { 442 ram_resource[i].name = 443 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 444 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 445 "16-bit Slow RAM"; 446 ram_resource[i].start = m68k_memory[i].addr; 447 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 448 request_resource(&iomem_resource, &ram_resource[i]); 449 } 450 451 /* initialize chipram allocator */ 452 amiga_chip_init(); 453 454 /* our beloved beeper */ 455 if (AMIGAHW_PRESENT(AMI_AUDIO)) 456 amiga_init_sound(); 457 458 /* 459 * if it is an A3000, set the magic bit that forces 460 * a hard rekick 461 */ 462 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 463 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 464 } 465 466 static u64 amiga_read_clk(struct clocksource *cs); 467 468 static struct clocksource amiga_clk = { 469 .name = "ciab", 470 .rating = 250, 471 .read = amiga_read_clk, 472 .mask = CLOCKSOURCE_MASK(32), 473 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 474 }; 475 476 static unsigned short jiffy_ticks; 477 static u32 clk_total, clk_offset; 478 479 static irqreturn_t ciab_timer_handler(int irq, void *dev_id) 480 { 481 irq_handler_t timer_routine = dev_id; 482 483 clk_total += jiffy_ticks; 484 clk_offset = 0; 485 timer_routine(0, NULL); 486 487 return IRQ_HANDLED; 488 } 489 490 static void __init amiga_sched_init(irq_handler_t timer_routine) 491 { 492 static struct resource sched_res = { 493 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 494 }; 495 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 496 497 if (request_resource(&mb_resources._ciab, &sched_res)) 498 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 499 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 500 ciab.talo = jiffy_ticks % 256; 501 ciab.tahi = jiffy_ticks / 256; 502 503 /* install interrupt service routine for CIAB Timer A 504 * 505 * Please don't change this to use ciaa, as it interferes with the 506 * SCSI code. We'll have to take a look at this later 507 */ 508 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 509 "timer", timer_routine)) 510 pr_err("Couldn't register timer interrupt\n"); 511 /* start timer */ 512 ciab.cra |= 0x11; 513 514 clocksource_register_hz(&amiga_clk, amiga_eclock); 515 } 516 517 static u64 amiga_read_clk(struct clocksource *cs) 518 { 519 unsigned short hi, lo, hi2; 520 unsigned long flags; 521 u32 ticks; 522 523 local_irq_save(flags); 524 525 /* read CIA B timer A current value */ 526 hi = ciab.tahi; 527 lo = ciab.talo; 528 hi2 = ciab.tahi; 529 530 if (hi != hi2) { 531 lo = ciab.talo; 532 hi = hi2; 533 } 534 535 ticks = hi << 8 | lo; 536 537 if (ticks > jiffy_ticks / 2) 538 /* check for pending interrupt */ 539 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 540 clk_offset = jiffy_ticks; 541 542 ticks = jiffy_ticks - ticks; 543 ticks += clk_offset + clk_total; 544 545 local_irq_restore(flags); 546 547 return ticks; 548 } 549 550 static void amiga_reset(void) __noreturn; 551 552 static void amiga_reset(void) 553 { 554 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 555 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 556 557 local_irq_disable(); 558 if (CPU_IS_040_OR_060) 559 /* Setup transparent translation registers for mapping 560 * of 16 MB kernel segment before disabling translation 561 */ 562 asm volatile ("\n" 563 " move.l %0,%%d0\n" 564 " and.l #0xff000000,%%d0\n" 565 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 566 " .chip 68040\n" 567 " movec %%d0,%%itt0\n" 568 " movec %%d0,%%dtt0\n" 569 " .chip 68k\n" 570 " jmp %0@\n" 571 : /* no outputs */ 572 : "a" (jmp_addr040) 573 : "d0"); 574 else 575 /* for 680[23]0, just disable translation and jump to the physical 576 * address of the label 577 */ 578 asm volatile ("\n" 579 " pmove %%tc,%@\n" 580 " bclr #7,%@\n" 581 " pmove %@,%%tc\n" 582 " jmp %0@\n" 583 : /* no outputs */ 584 : "a" (jmp_addr)); 585 jmp_addr_label040: 586 /* disable translation on '040 now */ 587 asm volatile ("\n" 588 " moveq #0,%%d0\n" 589 " .chip 68040\n" 590 " movec %%d0,%%tc\n" /* disable MMU */ 591 " .chip 68k\n" 592 : /* no outputs */ 593 : /* no inputs */ 594 : "d0"); 595 596 jmp_addr_label: 597 /* pickup reset address from AmigaOS ROM, reset devices and jump 598 * to reset address 599 */ 600 asm volatile ("\n" 601 " move.w #0x2700,%sr\n" 602 " lea 0x01000000,%a0\n" 603 " sub.l %a0@(-0x14),%a0\n" 604 " move.l %a0@(4),%a0\n" 605 " subq.l #2,%a0\n" 606 " jra 1f\n" 607 /* align on a longword boundary */ 608 " " __ALIGN_STR "\n" 609 "1:\n" 610 " reset\n" 611 " jmp %a0@"); 612 613 for (;;) 614 ; 615 } 616 617 618 /* 619 * Debugging 620 */ 621 622 #define SAVEKMSG_MAXMEM 128*1024 623 624 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 625 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 626 627 struct savekmsg { 628 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 629 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 630 unsigned long magicptr; /* address of magic1 */ 631 unsigned long size; 632 char data[]; 633 }; 634 635 static struct savekmsg *savekmsg; 636 637 static void amiga_mem_console_write(struct console *co, const char *s, 638 unsigned int count) 639 { 640 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 641 memcpy(savekmsg->data + savekmsg->size, s, count); 642 savekmsg->size += count; 643 } 644 } 645 646 static int __init amiga_savekmsg_setup(char *arg) 647 { 648 bool registered; 649 650 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 651 return 0; 652 653 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 654 pr_err("Not enough chipram for debugging\n"); 655 return -ENOMEM; 656 } 657 658 /* Just steal the block, the chipram allocator isn't functional yet */ 659 amiga_chip_size -= SAVEKMSG_MAXMEM; 660 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 661 savekmsg->magic1 = SAVEKMSG_MAGIC1; 662 savekmsg->magic2 = SAVEKMSG_MAGIC2; 663 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 664 savekmsg->size = 0; 665 666 registered = !!amiga_console_driver.write; 667 amiga_console_driver.write = amiga_mem_console_write; 668 if (!registered) 669 register_console(&amiga_console_driver); 670 return 0; 671 } 672 673 early_param("debug", amiga_savekmsg_setup); 674 675 static void amiga_serial_putc(char c) 676 { 677 amiga_custom.serdat = (unsigned char)c | 0x100; 678 while (!(amiga_custom.serdatr & 0x2000)) 679 ; 680 } 681 682 static void amiga_serial_console_write(struct console *co, const char *s, 683 unsigned int count) 684 { 685 while (count--) { 686 if (*s == '\n') 687 amiga_serial_putc('\r'); 688 amiga_serial_putc(*s++); 689 } 690 } 691 692 #if 0 693 void amiga_serial_puts(const char *s) 694 { 695 amiga_serial_console_write(NULL, s, strlen(s)); 696 } 697 698 int amiga_serial_console_wait_key(struct console *co) 699 { 700 int ch; 701 702 while (!(amiga_custom.intreqr & IF_RBF)) 703 barrier(); 704 ch = amiga_custom.serdatr & 0xff; 705 /* clear the interrupt, so that another character can be read */ 706 amiga_custom.intreq = IF_RBF; 707 return ch; 708 } 709 710 void amiga_serial_gets(struct console *co, char *s, int len) 711 { 712 int ch, cnt = 0; 713 714 while (1) { 715 ch = amiga_serial_console_wait_key(co); 716 717 /* Check for backspace. */ 718 if (ch == 8 || ch == 127) { 719 if (cnt == 0) { 720 amiga_serial_putc('\007'); 721 continue; 722 } 723 cnt--; 724 amiga_serial_puts("\010 \010"); 725 continue; 726 } 727 728 /* Check for enter. */ 729 if (ch == 10 || ch == 13) 730 break; 731 732 /* See if line is too long. */ 733 if (cnt >= len + 1) { 734 amiga_serial_putc(7); 735 cnt--; 736 continue; 737 } 738 739 /* Store and echo character. */ 740 s[cnt++] = ch; 741 amiga_serial_putc(ch); 742 } 743 /* Print enter. */ 744 amiga_serial_puts("\r\n"); 745 s[cnt] = 0; 746 } 747 #endif 748 749 static int __init amiga_debug_setup(char *arg) 750 { 751 bool registered; 752 753 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 754 return 0; 755 756 /* no initialization required (?) */ 757 registered = !!amiga_console_driver.write; 758 amiga_console_driver.write = amiga_serial_console_write; 759 if (!registered) 760 register_console(&amiga_console_driver); 761 return 0; 762 } 763 764 early_param("debug", amiga_debug_setup); 765 766 #ifdef CONFIG_HEARTBEAT 767 static void amiga_heartbeat(int on) 768 { 769 if (on) 770 ciaa.pra &= ~2; 771 else 772 ciaa.pra |= 2; 773 } 774 #endif 775 776 /* 777 * Amiga specific parts of /proc 778 */ 779 780 static void amiga_get_model(char *model) 781 { 782 strcpy(model, amiga_model_name); 783 } 784 785 786 static void amiga_get_hardware_list(struct seq_file *m) 787 { 788 if (AMIGAHW_PRESENT(CHIP_RAM)) 789 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 790 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 791 amiga_psfreq, amiga_eclock); 792 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 793 char *type; 794 switch (amiga_chipset) { 795 case CS_OCS: 796 type = "OCS"; 797 break; 798 case CS_ECS: 799 type = "ECS"; 800 break; 801 case CS_AGA: 802 type = "AGA"; 803 break; 804 default: 805 type = "Old or Unknown"; 806 break; 807 } 808 seq_printf(m, "Graphics:\t%s\n", type); 809 } 810 811 #define AMIGAHW_ANNOUNCE(name, str) \ 812 if (AMIGAHW_PRESENT(name)) \ 813 seq_printf (m, "\t%s\n", str) 814 815 seq_puts(m, "Detected hardware:\n"); 816 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 817 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 818 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 819 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 820 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 821 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 822 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 823 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 824 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 825 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 826 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 827 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 828 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 829 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 830 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 831 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 832 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 833 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 834 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 835 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 836 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 837 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 838 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 839 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 840 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 841 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 842 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 843 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 844 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 845 #ifdef CONFIG_ZORRO 846 if (AMIGAHW_PRESENT(ZORRO)) 847 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 848 "Device%s\n", 849 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 850 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 851 #endif /* CONFIG_ZORRO */ 852 853 #undef AMIGAHW_ANNOUNCE 854 } 855 856 /* 857 * The Amiga keyboard driver needs key_maps, but we cannot export it in 858 * drivers/char/defkeymap.c, as it is autogenerated 859 */ 860 #ifdef CONFIG_HW_CONSOLE 861 EXPORT_SYMBOL_GPL(key_maps); 862 #endif 863