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/console.h> 21 #include <linux/rtc.h> 22 #include <linux/init.h> 23 #include <linux/vt_kern.h> 24 #include <linux/delay.h> 25 #include <linux/interrupt.h> 26 #include <linux/zorro.h> 27 #include <linux/module.h> 28 #include <linux/keyboard.h> 29 30 #include <asm/bootinfo.h> 31 #include <asm/bootinfo-amiga.h> 32 #include <asm/byteorder.h> 33 #include <asm/setup.h> 34 #include <asm/pgtable.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 /* amiga specific timer functions */ 99 static u32 amiga_gettimeoffset(void); 100 extern void amiga_mksound(unsigned int count, unsigned int ticks); 101 static void amiga_reset(void); 102 extern void amiga_init_sound(void); 103 static void amiga_mem_console_write(struct console *co, const char *b, 104 unsigned int count); 105 #ifdef CONFIG_HEARTBEAT 106 static void amiga_heartbeat(int on); 107 #endif 108 109 static struct console amiga_console_driver = { 110 .name = "debug", 111 .flags = CON_PRINTBUFFER, 112 .index = -1, 113 }; 114 115 116 /* 117 * Motherboard Resources present in all Amiga models 118 */ 119 120 static struct { 121 struct resource _ciab, _ciaa, _custom, _kickstart; 122 } mb_resources = { 123 ._ciab = { 124 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 125 }, 126 ._ciaa = { 127 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 128 }, 129 ._custom = { 130 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 131 }, 132 ._kickstart = { 133 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 134 } 135 }; 136 137 static struct resource ram_resource[NUM_MEMINFO]; 138 139 140 /* 141 * Parse an Amiga-specific record in the bootinfo 142 */ 143 144 int __init amiga_parse_bootinfo(const struct bi_record *record) 145 { 146 int unknown = 0; 147 const void *data = record->data; 148 149 switch (be16_to_cpu(record->tag)) { 150 case BI_AMIGA_MODEL: 151 amiga_model = be32_to_cpup(data); 152 break; 153 154 case BI_AMIGA_ECLOCK: 155 amiga_eclock = be32_to_cpup(data); 156 break; 157 158 case BI_AMIGA_CHIPSET: 159 amiga_chipset = be32_to_cpup(data); 160 break; 161 162 case BI_AMIGA_CHIP_SIZE: 163 amiga_chip_size = be32_to_cpup(data); 164 break; 165 166 case BI_AMIGA_VBLANK: 167 amiga_vblank = *(const __u8 *)data; 168 break; 169 170 case BI_AMIGA_PSFREQ: 171 amiga_psfreq = *(const __u8 *)data; 172 break; 173 174 case BI_AMIGA_AUTOCON: 175 #ifdef CONFIG_ZORRO 176 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 177 const struct ConfigDev *cd = data; 178 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; 179 dev->rom = cd->cd_Rom; 180 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); 181 dev->slotsize = be16_to_cpu(cd->cd_SlotSize); 182 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); 183 dev->boardsize = be32_to_cpu(cd->cd_BoardSize); 184 } else 185 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 186 #endif /* CONFIG_ZORRO */ 187 break; 188 189 case BI_AMIGA_SERPER: 190 /* serial port period: ignored here */ 191 break; 192 193 default: 194 unknown = 1; 195 } 196 return unknown; 197 } 198 199 /* 200 * Identify builtin hardware 201 */ 202 203 static void __init amiga_identify(void) 204 { 205 /* Fill in some default values, if necessary */ 206 if (amiga_eclock == 0) 207 amiga_eclock = 709379; 208 209 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 210 211 pr_info("Amiga hardware found: "); 212 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 213 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 214 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 215 } 216 217 switch (amiga_model) { 218 case AMI_UNKNOWN: 219 goto Generic; 220 221 case AMI_600: 222 case AMI_1200: 223 AMIGAHW_SET(A1200_IDE); 224 AMIGAHW_SET(PCMCIA); 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 /* fall through */ 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 /* fall through */ 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 arch_gettimeoffset = amiga_gettimeoffset; 390 391 /* 392 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI 393 * code will not be able to allocate any mem for transfers, unless we are 394 * dealing with a Z2 mem only system. /Jes 395 */ 396 mach_max_dma_address = 0xffffffff; 397 398 mach_reset = amiga_reset; 399 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP) 400 mach_beep = amiga_mksound; 401 #endif 402 403 #ifdef CONFIG_HEARTBEAT 404 mach_heartbeat = amiga_heartbeat; 405 #endif 406 407 mach_random_get_entropy = amiga_random_get_entropy; 408 409 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 410 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 411 412 /* clear all DMA bits */ 413 amiga_custom.dmacon = DMAF_ALL; 414 /* ensure that the DMA master bit is set */ 415 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 416 417 /* don't use Z2 RAM as system memory on Z3 capable machines */ 418 if (AMIGAHW_PRESENT(ZORRO3)) { 419 int i, j; 420 u32 disabled_z2mem = 0; 421 422 for (i = 0; i < m68k_num_memory; i++) { 423 if (m68k_memory[i].addr < 16*1024*1024) { 424 if (i == 0) { 425 /* don't cut off the branch we're sitting on */ 426 pr_warn("Warning: kernel runs in Zorro II memory\n"); 427 continue; 428 } 429 disabled_z2mem += m68k_memory[i].size; 430 m68k_num_memory--; 431 for (j = i; j < m68k_num_memory; j++) 432 m68k_memory[j] = m68k_memory[j+1]; 433 i--; 434 } 435 } 436 if (disabled_z2mem) 437 pr_info("%dK of Zorro II memory will not be used as system memory\n", 438 disabled_z2mem>>10); 439 } 440 441 /* request all RAM */ 442 for (i = 0; i < m68k_num_memory; i++) { 443 ram_resource[i].name = 444 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 445 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 446 "16-bit Slow RAM"; 447 ram_resource[i].start = m68k_memory[i].addr; 448 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 449 request_resource(&iomem_resource, &ram_resource[i]); 450 } 451 452 /* initialize chipram allocator */ 453 amiga_chip_init(); 454 455 /* our beloved beeper */ 456 if (AMIGAHW_PRESENT(AMI_AUDIO)) 457 amiga_init_sound(); 458 459 /* 460 * if it is an A3000, set the magic bit that forces 461 * a hard rekick 462 */ 463 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 464 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 465 } 466 467 static unsigned short jiffy_ticks; 468 469 static void __init amiga_sched_init(irq_handler_t timer_routine) 470 { 471 static struct resource sched_res = { 472 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 473 }; 474 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 475 476 if (request_resource(&mb_resources._ciab, &sched_res)) 477 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 478 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 479 ciab.talo = jiffy_ticks % 256; 480 ciab.tahi = jiffy_ticks / 256; 481 482 /* install interrupt service routine for CIAB Timer A 483 * 484 * Please don't change this to use ciaa, as it interferes with the 485 * SCSI code. We'll have to take a look at this later 486 */ 487 if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL)) 488 pr_err("Couldn't register timer interrupt\n"); 489 /* start timer */ 490 ciab.cra |= 0x11; 491 } 492 493 #define TICK_SIZE 10000 494 495 /* This is always executed with interrupts disabled. */ 496 static u32 amiga_gettimeoffset(void) 497 { 498 unsigned short hi, lo, hi2; 499 u32 ticks, offset = 0; 500 501 /* read CIA B timer A current value */ 502 hi = ciab.tahi; 503 lo = ciab.talo; 504 hi2 = ciab.tahi; 505 506 if (hi != hi2) { 507 lo = ciab.talo; 508 hi = hi2; 509 } 510 511 ticks = hi << 8 | lo; 512 513 if (ticks > jiffy_ticks / 2) 514 /* check for pending interrupt */ 515 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 516 offset = 10000; 517 518 ticks = jiffy_ticks - ticks; 519 ticks = (10000 * ticks) / jiffy_ticks; 520 521 return (ticks + offset) * 1000; 522 } 523 524 static void amiga_reset(void) __noreturn; 525 526 static void amiga_reset(void) 527 { 528 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 529 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 530 531 local_irq_disable(); 532 if (CPU_IS_040_OR_060) 533 /* Setup transparent translation registers for mapping 534 * of 16 MB kernel segment before disabling translation 535 */ 536 asm volatile ("\n" 537 " move.l %0,%%d0\n" 538 " and.l #0xff000000,%%d0\n" 539 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 540 " .chip 68040\n" 541 " movec %%d0,%%itt0\n" 542 " movec %%d0,%%dtt0\n" 543 " .chip 68k\n" 544 " jmp %0@\n" 545 : /* no outputs */ 546 : "a" (jmp_addr040) 547 : "d0"); 548 else 549 /* for 680[23]0, just disable translation and jump to the physical 550 * address of the label 551 */ 552 asm volatile ("\n" 553 " pmove %%tc,%@\n" 554 " bclr #7,%@\n" 555 " pmove %@,%%tc\n" 556 " jmp %0@\n" 557 : /* no outputs */ 558 : "a" (jmp_addr)); 559 jmp_addr_label040: 560 /* disable translation on '040 now */ 561 asm volatile ("\n" 562 " moveq #0,%%d0\n" 563 " .chip 68040\n" 564 " movec %%d0,%%tc\n" /* disable MMU */ 565 " .chip 68k\n" 566 : /* no outputs */ 567 : /* no inputs */ 568 : "d0"); 569 570 jmp_addr_label: 571 /* pickup reset address from AmigaOS ROM, reset devices and jump 572 * to reset address 573 */ 574 asm volatile ("\n" 575 " move.w #0x2700,%sr\n" 576 " lea 0x01000000,%a0\n" 577 " sub.l %a0@(-0x14),%a0\n" 578 " move.l %a0@(4),%a0\n" 579 " subq.l #2,%a0\n" 580 " jra 1f\n" 581 /* align on a longword boundary */ 582 " " __ALIGN_STR "\n" 583 "1:\n" 584 " reset\n" 585 " jmp %a0@"); 586 587 for (;;) 588 ; 589 } 590 591 592 /* 593 * Debugging 594 */ 595 596 #define SAVEKMSG_MAXMEM 128*1024 597 598 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 599 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 600 601 struct savekmsg { 602 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 603 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 604 unsigned long magicptr; /* address of magic1 */ 605 unsigned long size; 606 char data[0]; 607 }; 608 609 static struct savekmsg *savekmsg; 610 611 static void amiga_mem_console_write(struct console *co, const char *s, 612 unsigned int count) 613 { 614 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 615 memcpy(savekmsg->data + savekmsg->size, s, count); 616 savekmsg->size += count; 617 } 618 } 619 620 static int __init amiga_savekmsg_setup(char *arg) 621 { 622 bool registered; 623 624 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 625 return 0; 626 627 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 628 pr_err("Not enough chipram for debugging\n"); 629 return -ENOMEM; 630 } 631 632 /* Just steal the block, the chipram allocator isn't functional yet */ 633 amiga_chip_size -= SAVEKMSG_MAXMEM; 634 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 635 savekmsg->magic1 = SAVEKMSG_MAGIC1; 636 savekmsg->magic2 = SAVEKMSG_MAGIC2; 637 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 638 savekmsg->size = 0; 639 640 registered = !!amiga_console_driver.write; 641 amiga_console_driver.write = amiga_mem_console_write; 642 if (!registered) 643 register_console(&amiga_console_driver); 644 return 0; 645 } 646 647 early_param("debug", amiga_savekmsg_setup); 648 649 static void amiga_serial_putc(char c) 650 { 651 amiga_custom.serdat = (unsigned char)c | 0x100; 652 while (!(amiga_custom.serdatr & 0x2000)) 653 ; 654 } 655 656 static void amiga_serial_console_write(struct console *co, const char *s, 657 unsigned int count) 658 { 659 while (count--) { 660 if (*s == '\n') 661 amiga_serial_putc('\r'); 662 amiga_serial_putc(*s++); 663 } 664 } 665 666 #if 0 667 void amiga_serial_puts(const char *s) 668 { 669 amiga_serial_console_write(NULL, s, strlen(s)); 670 } 671 672 int amiga_serial_console_wait_key(struct console *co) 673 { 674 int ch; 675 676 while (!(amiga_custom.intreqr & IF_RBF)) 677 barrier(); 678 ch = amiga_custom.serdatr & 0xff; 679 /* clear the interrupt, so that another character can be read */ 680 amiga_custom.intreq = IF_RBF; 681 return ch; 682 } 683 684 void amiga_serial_gets(struct console *co, char *s, int len) 685 { 686 int ch, cnt = 0; 687 688 while (1) { 689 ch = amiga_serial_console_wait_key(co); 690 691 /* Check for backspace. */ 692 if (ch == 8 || ch == 127) { 693 if (cnt == 0) { 694 amiga_serial_putc('\007'); 695 continue; 696 } 697 cnt--; 698 amiga_serial_puts("\010 \010"); 699 continue; 700 } 701 702 /* Check for enter. */ 703 if (ch == 10 || ch == 13) 704 break; 705 706 /* See if line is too long. */ 707 if (cnt >= len + 1) { 708 amiga_serial_putc(7); 709 cnt--; 710 continue; 711 } 712 713 /* Store and echo character. */ 714 s[cnt++] = ch; 715 amiga_serial_putc(ch); 716 } 717 /* Print enter. */ 718 amiga_serial_puts("\r\n"); 719 s[cnt] = 0; 720 } 721 #endif 722 723 static int __init amiga_debug_setup(char *arg) 724 { 725 bool registered; 726 727 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 728 return 0; 729 730 /* no initialization required (?) */ 731 registered = !!amiga_console_driver.write; 732 amiga_console_driver.write = amiga_serial_console_write; 733 if (!registered) 734 register_console(&amiga_console_driver); 735 return 0; 736 } 737 738 early_param("debug", amiga_debug_setup); 739 740 #ifdef CONFIG_HEARTBEAT 741 static void amiga_heartbeat(int on) 742 { 743 if (on) 744 ciaa.pra &= ~2; 745 else 746 ciaa.pra |= 2; 747 } 748 #endif 749 750 /* 751 * Amiga specific parts of /proc 752 */ 753 754 static void amiga_get_model(char *model) 755 { 756 strcpy(model, amiga_model_name); 757 } 758 759 760 static void amiga_get_hardware_list(struct seq_file *m) 761 { 762 if (AMIGAHW_PRESENT(CHIP_RAM)) 763 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 764 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 765 amiga_psfreq, amiga_eclock); 766 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 767 char *type; 768 switch (amiga_chipset) { 769 case CS_OCS: 770 type = "OCS"; 771 break; 772 case CS_ECS: 773 type = "ECS"; 774 break; 775 case CS_AGA: 776 type = "AGA"; 777 break; 778 default: 779 type = "Old or Unknown"; 780 break; 781 } 782 seq_printf(m, "Graphics:\t%s\n", type); 783 } 784 785 #define AMIGAHW_ANNOUNCE(name, str) \ 786 if (AMIGAHW_PRESENT(name)) \ 787 seq_printf (m, "\t%s\n", str) 788 789 seq_puts(m, "Detected hardware:\n"); 790 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 791 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 792 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 793 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 794 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 795 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 796 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 797 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 798 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 799 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 800 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 801 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 802 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 803 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 804 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 805 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 806 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 807 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 808 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 809 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 810 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 811 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 812 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 813 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 814 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 815 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 816 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 817 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 818 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 819 #ifdef CONFIG_ZORRO 820 if (AMIGAHW_PRESENT(ZORRO)) 821 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 822 "Device%s\n", 823 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 824 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 825 #endif /* CONFIG_ZORRO */ 826 827 #undef AMIGAHW_ANNOUNCE 828 } 829 830 /* 831 * The Amiga keyboard driver needs key_maps, but we cannot export it in 832 * drivers/char/defkeymap.c, as it is autogenerated 833 */ 834 #ifdef CONFIG_HW_CONSOLE 835 EXPORT_SYMBOL_GPL(key_maps); 836 #endif 837