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/rtc.h> 39#include <asm/machdep.h> 40#include <asm/io.h> 41 42static unsigned long amiga_model; 43 44unsigned long amiga_eclock; 45EXPORT_SYMBOL(amiga_eclock); 46 47unsigned long amiga_colorclock; 48EXPORT_SYMBOL(amiga_colorclock); 49 50unsigned long amiga_chipset; 51EXPORT_SYMBOL(amiga_chipset); 52 53unsigned char amiga_vblank; 54EXPORT_SYMBOL(amiga_vblank); 55 56static unsigned char amiga_psfreq; 57 58struct amiga_hw_present amiga_hw_present; 59EXPORT_SYMBOL(amiga_hw_present); 60 61static char s_a500[] __initdata = "A500"; 62static char s_a500p[] __initdata = "A500+"; 63static char s_a600[] __initdata = "A600"; 64static char s_a1000[] __initdata = "A1000"; 65static char s_a1200[] __initdata = "A1200"; 66static char s_a2000[] __initdata = "A2000"; 67static char s_a2500[] __initdata = "A2500"; 68static char s_a3000[] __initdata = "A3000"; 69static char s_a3000t[] __initdata = "A3000T"; 70static char s_a3000p[] __initdata = "A3000+"; 71static char s_a4000[] __initdata = "A4000"; 72static char s_a4000t[] __initdata = "A4000T"; 73static char s_cdtv[] __initdata = "CDTV"; 74static char s_cd32[] __initdata = "CD32"; 75static char s_draco[] __initdata = "Draco"; 76static 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 94static char amiga_model_name[13] = "Amiga "; 95 96static void amiga_sched_init(irq_handler_t handler); 97static void amiga_get_model(char *model); 98static void amiga_get_hardware_list(struct seq_file *m); 99/* amiga specific timer functions */ 100static u32 amiga_gettimeoffset(void); 101extern void amiga_mksound(unsigned int count, unsigned int ticks); 102static void amiga_reset(void); 103extern void amiga_init_sound(void); 104static void amiga_mem_console_write(struct console *co, const char *b, 105 unsigned int count); 106#ifdef CONFIG_HEARTBEAT 107static void amiga_heartbeat(int on); 108#endif 109 110static struct console amiga_console_driver = { 111 .name = "debug", 112 .flags = CON_PRINTBUFFER, 113 .index = -1, 114}; 115 116 117 /* 118 * Motherboard Resources present in all Amiga models 119 */ 120 121static struct { 122 struct resource _ciab, _ciaa, _custom, _kickstart; 123} mb_resources = { 124 ._ciab = { 125 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff 126 }, 127 ._ciaa = { 128 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff 129 }, 130 ._custom = { 131 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff 132 }, 133 ._kickstart = { 134 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff 135 } 136}; 137 138static struct resource ram_resource[NUM_MEMINFO]; 139 140 141 /* 142 * Parse an Amiga-specific record in the bootinfo 143 */ 144 145int __init amiga_parse_bootinfo(const struct bi_record *record) 146{ 147 int unknown = 0; 148 const void *data = record->data; 149 150 switch (be16_to_cpu(record->tag)) { 151 case BI_AMIGA_MODEL: 152 amiga_model = be32_to_cpup(data); 153 break; 154 155 case BI_AMIGA_ECLOCK: 156 amiga_eclock = be32_to_cpup(data); 157 break; 158 159 case BI_AMIGA_CHIPSET: 160 amiga_chipset = be32_to_cpup(data); 161 break; 162 163 case BI_AMIGA_CHIP_SIZE: 164 amiga_chip_size = be32_to_cpup(data); 165 break; 166 167 case BI_AMIGA_VBLANK: 168 amiga_vblank = *(const __u8 *)data; 169 break; 170 171 case BI_AMIGA_PSFREQ: 172 amiga_psfreq = *(const __u8 *)data; 173 break; 174 175 case BI_AMIGA_AUTOCON: 176#ifdef CONFIG_ZORRO 177 if (zorro_num_autocon < ZORRO_NUM_AUTO) { 178 const struct ConfigDev *cd = data; 179 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; 180 dev->rom = cd->cd_Rom; 181 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr); 182 dev->slotsize = be16_to_cpu(cd->cd_SlotSize); 183 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr); 184 dev->boardsize = be32_to_cpu(cd->cd_BoardSize); 185 } else 186 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 187#endif /* CONFIG_ZORRO */ 188 break; 189 190 case BI_AMIGA_SERPER: 191 /* serial port period: ignored here */ 192 break; 193 194 default: 195 unknown = 1; 196 } 197 return unknown; 198} 199 200 /* 201 * Identify builtin hardware 202 */ 203 204static void __init amiga_identify(void) 205{ 206 /* Fill in some default values, if necessary */ 207 if (amiga_eclock == 0) 208 amiga_eclock = 709379; 209 210 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 211 212 pr_info("Amiga hardware found: "); 213 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 214 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 215 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 216 } 217 218 switch (amiga_model) { 219 case AMI_UNKNOWN: 220 goto Generic; 221 222 case AMI_600: 223 case AMI_1200: 224 AMIGAHW_SET(A1200_IDE); 225 AMIGAHW_SET(PCMCIA); 226 case AMI_500: 227 case AMI_500PLUS: 228 case AMI_1000: 229 case AMI_2000: 230 case AMI_2500: 231 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 232 goto Generic; 233 234 case AMI_3000: 235 case AMI_3000T: 236 AMIGAHW_SET(AMBER_FF); 237 AMIGAHW_SET(MAGIC_REKICK); 238 /* fall through */ 239 case AMI_3000PLUS: 240 AMIGAHW_SET(A3000_SCSI); 241 AMIGAHW_SET(A3000_CLK); 242 AMIGAHW_SET(ZORRO3); 243 goto Generic; 244 245 case AMI_4000T: 246 AMIGAHW_SET(A4000_SCSI); 247 /* fall through */ 248 case AMI_4000: 249 AMIGAHW_SET(A4000_IDE); 250 AMIGAHW_SET(A3000_CLK); 251 AMIGAHW_SET(ZORRO3); 252 goto Generic; 253 254 case AMI_CDTV: 255 case AMI_CD32: 256 AMIGAHW_SET(CD_ROM); 257 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 258 goto Generic; 259 260 Generic: 261 AMIGAHW_SET(AMI_VIDEO); 262 AMIGAHW_SET(AMI_BLITTER); 263 AMIGAHW_SET(AMI_AUDIO); 264 AMIGAHW_SET(AMI_FLOPPY); 265 AMIGAHW_SET(AMI_KEYBOARD); 266 AMIGAHW_SET(AMI_MOUSE); 267 AMIGAHW_SET(AMI_SERIAL); 268 AMIGAHW_SET(AMI_PARALLEL); 269 AMIGAHW_SET(CHIP_RAM); 270 AMIGAHW_SET(PAULA); 271 272 switch (amiga_chipset) { 273 case CS_OCS: 274 case CS_ECS: 275 case CS_AGA: 276 switch (amiga_custom.deniseid & 0xf) { 277 case 0x0c: 278 AMIGAHW_SET(DENISE_HR); 279 break; 280 case 0x08: 281 AMIGAHW_SET(LISA); 282 break; 283 } 284 break; 285 default: 286 AMIGAHW_SET(DENISE); 287 break; 288 } 289 switch ((amiga_custom.vposr>>8) & 0x7f) { 290 case 0x00: 291 AMIGAHW_SET(AGNUS_PAL); 292 break; 293 case 0x10: 294 AMIGAHW_SET(AGNUS_NTSC); 295 break; 296 case 0x20: 297 case 0x21: 298 AMIGAHW_SET(AGNUS_HR_PAL); 299 break; 300 case 0x30: 301 case 0x31: 302 AMIGAHW_SET(AGNUS_HR_NTSC); 303 break; 304 case 0x22: 305 case 0x23: 306 AMIGAHW_SET(ALICE_PAL); 307 break; 308 case 0x32: 309 case 0x33: 310 AMIGAHW_SET(ALICE_NTSC); 311 break; 312 } 313 AMIGAHW_SET(ZORRO); 314 break; 315 316 case AMI_DRACO: 317 panic("No support for Draco yet"); 318 319 default: 320 panic("Unknown Amiga Model"); 321 } 322 323#define AMIGAHW_ANNOUNCE(name, str) \ 324 if (AMIGAHW_PRESENT(name)) \ 325 pr_cont(str) 326 327 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 328 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 329 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 330 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 331 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 332 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 333 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 334 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 335 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 336 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 337 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 338 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 339 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 340 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 341 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 342 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 343 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 344 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 345 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 346 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 347 AMIGAHW_ANNOUNCE(LISA, "LISA "); 348 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 349 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 350 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 351 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 352 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 353 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 354 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 355 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 356 if (AMIGAHW_PRESENT(ZORRO)) 357 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 358 pr_cont("\n"); 359 360#undef AMIGAHW_ANNOUNCE 361} 362 363 364static unsigned long amiga_random_get_entropy(void) 365{ 366 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 367 return *(unsigned long *)&amiga_custom.vposr; 368} 369 370 371 /* 372 * Setup the Amiga configuration info 373 */ 374 375void __init config_amiga(void) 376{ 377 int i; 378 379 amiga_identify(); 380 381 /* Yuk, we don't have PCI memory */ 382 iomem_resource.name = "Memory"; 383 for (i = 0; i < 4; i++) 384 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 385 386 mach_sched_init = amiga_sched_init; 387 mach_init_IRQ = amiga_init_IRQ; 388 mach_get_model = amiga_get_model; 389 mach_get_hardware_list = amiga_get_hardware_list; 390 arch_gettimeoffset = amiga_gettimeoffset; 391 392 /* 393 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI 394 * code will not be able to allocate any mem for transfers, unless we are 395 * dealing with a Z2 mem only system. /Jes 396 */ 397 mach_max_dma_address = 0xffffffff; 398 399 mach_reset = amiga_reset; 400#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) 401 mach_beep = amiga_mksound; 402#endif 403 404#ifdef CONFIG_HEARTBEAT 405 mach_heartbeat = amiga_heartbeat; 406#endif 407 408 mach_random_get_entropy = amiga_random_get_entropy; 409 410 /* Fill in the clock value (based on the 700 kHz E-Clock) */ 411 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ 412 413 /* clear all DMA bits */ 414 amiga_custom.dmacon = DMAF_ALL; 415 /* ensure that the DMA master bit is set */ 416 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; 417 418 /* don't use Z2 RAM as system memory on Z3 capable machines */ 419 if (AMIGAHW_PRESENT(ZORRO3)) { 420 int i, j; 421 u32 disabled_z2mem = 0; 422 423 for (i = 0; i < m68k_num_memory; i++) { 424 if (m68k_memory[i].addr < 16*1024*1024) { 425 if (i == 0) { 426 /* don't cut off the branch we're sitting on */ 427 pr_warn("Warning: kernel runs in Zorro II memory\n"); 428 continue; 429 } 430 disabled_z2mem += m68k_memory[i].size; 431 m68k_num_memory--; 432 for (j = i; j < m68k_num_memory; j++) 433 m68k_memory[j] = m68k_memory[j+1]; 434 i--; 435 } 436 } 437 if (disabled_z2mem) 438 pr_info("%dK of Zorro II memory will not be used as system memory\n", 439 disabled_z2mem>>10); 440 } 441 442 /* request all RAM */ 443 for (i = 0; i < m68k_num_memory; i++) { 444 ram_resource[i].name = 445 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : 446 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : 447 "16-bit Slow RAM"; 448 ram_resource[i].start = m68k_memory[i].addr; 449 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; 450 request_resource(&iomem_resource, &ram_resource[i]); 451 } 452 453 /* initialize chipram allocator */ 454 amiga_chip_init(); 455 456 /* our beloved beeper */ 457 if (AMIGAHW_PRESENT(AMI_AUDIO)) 458 amiga_init_sound(); 459 460 /* 461 * if it is an A3000, set the magic bit that forces 462 * a hard rekick 463 */ 464 if (AMIGAHW_PRESENT(MAGIC_REKICK)) 465 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; 466} 467 468static unsigned short jiffy_ticks; 469 470static void __init amiga_sched_init(irq_handler_t timer_routine) 471{ 472 static struct resource sched_res = { 473 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 474 }; 475 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 476 477 if (request_resource(&mb_resources._ciab, &sched_res)) 478 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 479 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 480 ciab.talo = jiffy_ticks % 256; 481 ciab.tahi = jiffy_ticks / 256; 482 483 /* install interrupt service routine for CIAB Timer A 484 * 485 * Please don't change this to use ciaa, as it interferes with the 486 * SCSI code. We'll have to take a look at this later 487 */ 488 if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL)) 489 pr_err("Couldn't register timer interrupt\n"); 490 /* start timer */ 491 ciab.cra |= 0x11; 492} 493 494#define TICK_SIZE 10000 495 496/* This is always executed with interrupts disabled. */ 497static u32 amiga_gettimeoffset(void) 498{ 499 unsigned short hi, lo, hi2; 500 u32 ticks, offset = 0; 501 502 /* read CIA B timer A current value */ 503 hi = ciab.tahi; 504 lo = ciab.talo; 505 hi2 = ciab.tahi; 506 507 if (hi != hi2) { 508 lo = ciab.talo; 509 hi = hi2; 510 } 511 512 ticks = hi << 8 | lo; 513 514 if (ticks > jiffy_ticks / 2) 515 /* check for pending interrupt */ 516 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 517 offset = 10000; 518 519 ticks = jiffy_ticks - ticks; 520 ticks = (10000 * ticks) / jiffy_ticks; 521 522 return (ticks + offset) * 1000; 523} 524 525static void amiga_reset(void) __noreturn; 526 527static void amiga_reset(void) 528{ 529 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 530 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 531 532 local_irq_disable(); 533 if (CPU_IS_040_OR_060) 534 /* Setup transparent translation registers for mapping 535 * of 16 MB kernel segment before disabling translation 536 */ 537 asm volatile ("\n" 538 " move.l %0,%%d0\n" 539 " and.l #0xff000000,%%d0\n" 540 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 541 " .chip 68040\n" 542 " movec %%d0,%%itt0\n" 543 " movec %%d0,%%dtt0\n" 544 " .chip 68k\n" 545 " jmp %0@\n" 546 : /* no outputs */ 547 : "a" (jmp_addr040) 548 : "d0"); 549 else 550 /* for 680[23]0, just disable translation and jump to the physical 551 * address of the label 552 */ 553 asm volatile ("\n" 554 " pmove %%tc,%@\n" 555 " bclr #7,%@\n" 556 " pmove %@,%%tc\n" 557 " jmp %0@\n" 558 : /* no outputs */ 559 : "a" (jmp_addr)); 560jmp_addr_label040: 561 /* disable translation on '040 now */ 562 asm volatile ("\n" 563 " moveq #0,%%d0\n" 564 " .chip 68040\n" 565 " movec %%d0,%%tc\n" /* disable MMU */ 566 " .chip 68k\n" 567 : /* no outputs */ 568 : /* no inputs */ 569 : "d0"); 570 571 jmp_addr_label: 572 /* pickup reset address from AmigaOS ROM, reset devices and jump 573 * to reset address 574 */ 575 asm volatile ("\n" 576 " move.w #0x2700,%sr\n" 577 " lea 0x01000000,%a0\n" 578 " sub.l %a0@(-0x14),%a0\n" 579 " move.l %a0@(4),%a0\n" 580 " subq.l #2,%a0\n" 581 " jra 1f\n" 582 /* align on a longword boundary */ 583 " " __ALIGN_STR "\n" 584 "1:\n" 585 " reset\n" 586 " jmp %a0@"); 587 588 for (;;) 589 ; 590} 591 592 593 /* 594 * Debugging 595 */ 596 597#define SAVEKMSG_MAXMEM 128*1024 598 599#define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 600#define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 601 602struct savekmsg { 603 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 604 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 605 unsigned long magicptr; /* address of magic1 */ 606 unsigned long size; 607 char data[0]; 608}; 609 610static struct savekmsg *savekmsg; 611 612static void amiga_mem_console_write(struct console *co, const char *s, 613 unsigned int count) 614{ 615 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 616 memcpy(savekmsg->data + savekmsg->size, s, count); 617 savekmsg->size += count; 618 } 619} 620 621static int __init amiga_savekmsg_setup(char *arg) 622{ 623 bool registered; 624 625 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 626 return 0; 627 628 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 629 pr_err("Not enough chipram for debugging\n"); 630 return -ENOMEM; 631 } 632 633 /* Just steal the block, the chipram allocator isn't functional yet */ 634 amiga_chip_size -= SAVEKMSG_MAXMEM; 635 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 636 savekmsg->magic1 = SAVEKMSG_MAGIC1; 637 savekmsg->magic2 = SAVEKMSG_MAGIC2; 638 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 639 savekmsg->size = 0; 640 641 registered = !!amiga_console_driver.write; 642 amiga_console_driver.write = amiga_mem_console_write; 643 if (!registered) 644 register_console(&amiga_console_driver); 645 return 0; 646} 647 648early_param("debug", amiga_savekmsg_setup); 649 650static void amiga_serial_putc(char c) 651{ 652 amiga_custom.serdat = (unsigned char)c | 0x100; 653 while (!(amiga_custom.serdatr & 0x2000)) 654 ; 655} 656 657static void amiga_serial_console_write(struct console *co, const char *s, 658 unsigned int count) 659{ 660 while (count--) { 661 if (*s == '\n') 662 amiga_serial_putc('\r'); 663 amiga_serial_putc(*s++); 664 } 665} 666 667#if 0 668void amiga_serial_puts(const char *s) 669{ 670 amiga_serial_console_write(NULL, s, strlen(s)); 671} 672 673int amiga_serial_console_wait_key(struct console *co) 674{ 675 int ch; 676 677 while (!(amiga_custom.intreqr & IF_RBF)) 678 barrier(); 679 ch = amiga_custom.serdatr & 0xff; 680 /* clear the interrupt, so that another character can be read */ 681 amiga_custom.intreq = IF_RBF; 682 return ch; 683} 684 685void amiga_serial_gets(struct console *co, char *s, int len) 686{ 687 int ch, cnt = 0; 688 689 while (1) { 690 ch = amiga_serial_console_wait_key(co); 691 692 /* Check for backspace. */ 693 if (ch == 8 || ch == 127) { 694 if (cnt == 0) { 695 amiga_serial_putc('\007'); 696 continue; 697 } 698 cnt--; 699 amiga_serial_puts("\010 \010"); 700 continue; 701 } 702 703 /* Check for enter. */ 704 if (ch == 10 || ch == 13) 705 break; 706 707 /* See if line is too long. */ 708 if (cnt >= len + 1) { 709 amiga_serial_putc(7); 710 cnt--; 711 continue; 712 } 713 714 /* Store and echo character. */ 715 s[cnt++] = ch; 716 amiga_serial_putc(ch); 717 } 718 /* Print enter. */ 719 amiga_serial_puts("\r\n"); 720 s[cnt] = 0; 721} 722#endif 723 724static int __init amiga_debug_setup(char *arg) 725{ 726 bool registered; 727 728 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 729 return 0; 730 731 /* no initialization required (?) */ 732 registered = !!amiga_console_driver.write; 733 amiga_console_driver.write = amiga_serial_console_write; 734 if (!registered) 735 register_console(&amiga_console_driver); 736 return 0; 737} 738 739early_param("debug", amiga_debug_setup); 740 741#ifdef CONFIG_HEARTBEAT 742static void amiga_heartbeat(int on) 743{ 744 if (on) 745 ciaa.pra &= ~2; 746 else 747 ciaa.pra |= 2; 748} 749#endif 750 751 /* 752 * Amiga specific parts of /proc 753 */ 754 755static void amiga_get_model(char *model) 756{ 757 strcpy(model, amiga_model_name); 758} 759 760 761static void amiga_get_hardware_list(struct seq_file *m) 762{ 763 if (AMIGAHW_PRESENT(CHIP_RAM)) 764 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 765 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 766 amiga_psfreq, amiga_eclock); 767 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 768 char *type; 769 switch (amiga_chipset) { 770 case CS_OCS: 771 type = "OCS"; 772 break; 773 case CS_ECS: 774 type = "ECS"; 775 break; 776 case CS_AGA: 777 type = "AGA"; 778 break; 779 default: 780 type = "Old or Unknown"; 781 break; 782 } 783 seq_printf(m, "Graphics:\t%s\n", type); 784 } 785 786#define AMIGAHW_ANNOUNCE(name, str) \ 787 if (AMIGAHW_PRESENT(name)) \ 788 seq_printf (m, "\t%s\n", str) 789 790 seq_printf (m, "Detected hardware:\n"); 791 792 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 793 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 794 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 795 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 796 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 797 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 798 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 799 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 800 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 801 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 802 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 803 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 804 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 805 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 806 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 807 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 808 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 809 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 810 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 811 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 812 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 813 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 814 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 815 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 816 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 817 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 818 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 819 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 820 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 821#ifdef CONFIG_ZORRO 822 if (AMIGAHW_PRESENT(ZORRO)) 823 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 824 "Device%s\n", 825 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 826 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); 827#endif /* CONFIG_ZORRO */ 828 829#undef AMIGAHW_ANNOUNCE 830} 831 832/* 833 * The Amiga keyboard driver needs key_maps, but we cannot export it in 834 * drivers/char/defkeymap.c, as it is autogenerated 835 */ 836#ifdef CONFIG_HW_CONSOLE 837EXPORT_SYMBOL_GPL(key_maps); 838#endif 839