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(irq_handler_t handler); 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; 386 387 /* 388 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI 389 * code will not be able to allocate any mem for transfers, unless we are 390 * dealing with a Z2 mem only system. /Jes 391 */ 392 mach_max_dma_address = 0xffffffff; 393 394 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 irq_handler_t timer_routine = dev_id; 479 480 clk_total += jiffy_ticks; 481 clk_offset = 0; 482 timer_routine(0, NULL); 483 484 return IRQ_HANDLED; 485 } 486 487 static void __init amiga_sched_init(irq_handler_t timer_routine) 488 { 489 static struct resource sched_res = { 490 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 491 }; 492 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 493 494 if (request_resource(&mb_resources._ciab, &sched_res)) 495 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 496 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 497 ciab.talo = jiffy_ticks % 256; 498 ciab.tahi = jiffy_ticks / 256; 499 500 /* install interrupt service routine for CIAB Timer A 501 * 502 * Please don't change this to use ciaa, as it interferes with the 503 * SCSI code. We'll have to take a look at this later 504 */ 505 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 506 "timer", timer_routine)) 507 pr_err("Couldn't register timer interrupt\n"); 508 /* start timer */ 509 ciab.cra |= 0x11; 510 511 clocksource_register_hz(&amiga_clk, amiga_eclock); 512 } 513 514 static u64 amiga_read_clk(struct clocksource *cs) 515 { 516 unsigned short hi, lo, hi2; 517 unsigned long flags; 518 u32 ticks; 519 520 local_irq_save(flags); 521 522 /* read CIA B timer A current value */ 523 hi = ciab.tahi; 524 lo = ciab.talo; 525 hi2 = ciab.tahi; 526 527 if (hi != hi2) { 528 lo = ciab.talo; 529 hi = hi2; 530 } 531 532 ticks = hi << 8 | lo; 533 534 if (ticks > jiffy_ticks / 2) 535 /* check for pending interrupt */ 536 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 537 clk_offset = jiffy_ticks; 538 539 ticks = jiffy_ticks - ticks; 540 ticks += clk_offset + clk_total; 541 542 local_irq_restore(flags); 543 544 return ticks; 545 } 546 547 static void amiga_reset(void) __noreturn; 548 549 static void amiga_reset(void) 550 { 551 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 552 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 553 554 local_irq_disable(); 555 if (CPU_IS_040_OR_060) 556 /* Setup transparent translation registers for mapping 557 * of 16 MB kernel segment before disabling translation 558 */ 559 asm volatile ("\n" 560 " move.l %0,%%d0\n" 561 " and.l #0xff000000,%%d0\n" 562 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 563 " .chip 68040\n" 564 " movec %%d0,%%itt0\n" 565 " movec %%d0,%%dtt0\n" 566 " .chip 68k\n" 567 " jmp %0@\n" 568 : /* no outputs */ 569 : "a" (jmp_addr040) 570 : "d0"); 571 else 572 /* for 680[23]0, just disable translation and jump to the physical 573 * address of the label 574 */ 575 asm volatile ("\n" 576 " pmove %%tc,%@\n" 577 " bclr #7,%@\n" 578 " pmove %@,%%tc\n" 579 " jmp %0@\n" 580 : /* no outputs */ 581 : "a" (jmp_addr)); 582 jmp_addr_label040: 583 /* disable translation on '040 now */ 584 asm volatile ("\n" 585 " moveq #0,%%d0\n" 586 " .chip 68040\n" 587 " movec %%d0,%%tc\n" /* disable MMU */ 588 " .chip 68k\n" 589 : /* no outputs */ 590 : /* no inputs */ 591 : "d0"); 592 593 jmp_addr_label: 594 /* pickup reset address from AmigaOS ROM, reset devices and jump 595 * to reset address 596 */ 597 asm volatile ("\n" 598 " move.w #0x2700,%sr\n" 599 " lea 0x01000000,%a0\n" 600 " sub.l %a0@(-0x14),%a0\n" 601 " move.l %a0@(4),%a0\n" 602 " subq.l #2,%a0\n" 603 " jra 1f\n" 604 /* align on a longword boundary */ 605 " " __ALIGN_STR "\n" 606 "1:\n" 607 " reset\n" 608 " jmp %a0@"); 609 610 for (;;) 611 ; 612 } 613 614 615 /* 616 * Debugging 617 */ 618 619 #define SAVEKMSG_MAXMEM 128*1024 620 621 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 622 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 623 624 struct savekmsg { 625 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 626 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 627 unsigned long magicptr; /* address of magic1 */ 628 unsigned long size; 629 char data[]; 630 }; 631 632 static struct savekmsg *savekmsg; 633 634 static void amiga_mem_console_write(struct console *co, const char *s, 635 unsigned int count) 636 { 637 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 638 memcpy(savekmsg->data + savekmsg->size, s, count); 639 savekmsg->size += count; 640 } 641 } 642 643 static int __init amiga_savekmsg_setup(char *arg) 644 { 645 bool registered; 646 647 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 648 return 0; 649 650 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 651 pr_err("Not enough chipram for debugging\n"); 652 return -ENOMEM; 653 } 654 655 /* Just steal the block, the chipram allocator isn't functional yet */ 656 amiga_chip_size -= SAVEKMSG_MAXMEM; 657 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 658 savekmsg->magic1 = SAVEKMSG_MAGIC1; 659 savekmsg->magic2 = SAVEKMSG_MAGIC2; 660 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 661 savekmsg->size = 0; 662 663 registered = !!amiga_console_driver.write; 664 amiga_console_driver.write = amiga_mem_console_write; 665 if (!registered) 666 register_console(&amiga_console_driver); 667 return 0; 668 } 669 670 early_param("debug", amiga_savekmsg_setup); 671 672 static void amiga_serial_putc(char c) 673 { 674 amiga_custom.serdat = (unsigned char)c | 0x100; 675 while (!(amiga_custom.serdatr & 0x2000)) 676 ; 677 } 678 679 static void amiga_serial_console_write(struct console *co, const char *s, 680 unsigned int count) 681 { 682 while (count--) { 683 if (*s == '\n') 684 amiga_serial_putc('\r'); 685 amiga_serial_putc(*s++); 686 } 687 } 688 689 #if 0 690 void amiga_serial_puts(const char *s) 691 { 692 amiga_serial_console_write(NULL, s, strlen(s)); 693 } 694 695 int amiga_serial_console_wait_key(struct console *co) 696 { 697 int ch; 698 699 while (!(amiga_custom.intreqr & IF_RBF)) 700 barrier(); 701 ch = amiga_custom.serdatr & 0xff; 702 /* clear the interrupt, so that another character can be read */ 703 amiga_custom.intreq = IF_RBF; 704 return ch; 705 } 706 707 void amiga_serial_gets(struct console *co, char *s, int len) 708 { 709 int ch, cnt = 0; 710 711 while (1) { 712 ch = amiga_serial_console_wait_key(co); 713 714 /* Check for backspace. */ 715 if (ch == 8 || ch == 127) { 716 if (cnt == 0) { 717 amiga_serial_putc('\007'); 718 continue; 719 } 720 cnt--; 721 amiga_serial_puts("\010 \010"); 722 continue; 723 } 724 725 /* Check for enter. */ 726 if (ch == 10 || ch == 13) 727 break; 728 729 /* See if line is too long. */ 730 if (cnt >= len + 1) { 731 amiga_serial_putc(7); 732 cnt--; 733 continue; 734 } 735 736 /* Store and echo character. */ 737 s[cnt++] = ch; 738 amiga_serial_putc(ch); 739 } 740 /* Print enter. */ 741 amiga_serial_puts("\r\n"); 742 s[cnt] = 0; 743 } 744 #endif 745 746 static int __init amiga_debug_setup(char *arg) 747 { 748 bool registered; 749 750 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 751 return 0; 752 753 /* no initialization required (?) */ 754 registered = !!amiga_console_driver.write; 755 amiga_console_driver.write = amiga_serial_console_write; 756 if (!registered) 757 register_console(&amiga_console_driver); 758 return 0; 759 } 760 761 early_param("debug", amiga_debug_setup); 762 763 #ifdef CONFIG_HEARTBEAT 764 static void amiga_heartbeat(int on) 765 { 766 if (on) 767 ciaa.pra &= ~2; 768 else 769 ciaa.pra |= 2; 770 } 771 #endif 772 773 /* 774 * Amiga specific parts of /proc 775 */ 776 777 static void amiga_get_model(char *model) 778 { 779 strcpy(model, amiga_model_name); 780 } 781 782 783 static void amiga_get_hardware_list(struct seq_file *m) 784 { 785 if (AMIGAHW_PRESENT(CHIP_RAM)) 786 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 787 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 788 amiga_psfreq, amiga_eclock); 789 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 790 char *type; 791 switch (amiga_chipset) { 792 case CS_OCS: 793 type = "OCS"; 794 break; 795 case CS_ECS: 796 type = "ECS"; 797 break; 798 case CS_AGA: 799 type = "AGA"; 800 break; 801 default: 802 type = "Old or Unknown"; 803 break; 804 } 805 seq_printf(m, "Graphics:\t%s\n", type); 806 } 807 808 #define AMIGAHW_ANNOUNCE(name, str) \ 809 if (AMIGAHW_PRESENT(name)) \ 810 seq_printf (m, "\t%s\n", str) 811 812 seq_puts(m, "Detected hardware:\n"); 813 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 814 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 815 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 816 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 817 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 818 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 819 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 820 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 821 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 822 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 823 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 824 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 825 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 826 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 827 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 828 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 829 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 830 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 831 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 832 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 833 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 834 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 835 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 836 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 837 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 838 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 839 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 840 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 841 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 842 #ifdef CONFIG_ZORRO 843 if (AMIGAHW_PRESENT(ZORRO)) 844 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 845 "Device%s\n", 846 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 847 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 848 #endif /* CONFIG_ZORRO */ 849 850 #undef AMIGAHW_ANNOUNCE 851 } 852 853 /* 854 * The Amiga keyboard driver needs key_maps, but we cannot export it in 855 * drivers/char/defkeymap.c, as it is autogenerated 856 */ 857 #ifdef CONFIG_HW_CONSOLE 858 EXPORT_SYMBOL_GPL(key_maps); 859 #endif 860