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 #include <asm/config.h> 41 42 #include "amiga.h" 43 44 static unsigned long amiga_model; 45 46 unsigned long amiga_eclock; 47 EXPORT_SYMBOL(amiga_eclock); 48 49 unsigned long amiga_colorclock; 50 EXPORT_SYMBOL(amiga_colorclock); 51 52 unsigned long amiga_chipset; 53 EXPORT_SYMBOL(amiga_chipset); 54 55 unsigned char amiga_vblank; 56 EXPORT_SYMBOL(amiga_vblank); 57 58 static unsigned char amiga_psfreq; 59 60 struct amiga_hw_present amiga_hw_present; 61 EXPORT_SYMBOL(amiga_hw_present); 62 63 static char s_a500[] __initdata = "A500"; 64 static char s_a500p[] __initdata = "A500+"; 65 static char s_a600[] __initdata = "A600"; 66 static char s_a1000[] __initdata = "A1000"; 67 static char s_a1200[] __initdata = "A1200"; 68 static char s_a2000[] __initdata = "A2000"; 69 static char s_a2500[] __initdata = "A2500"; 70 static char s_a3000[] __initdata = "A3000"; 71 static char s_a3000t[] __initdata = "A3000T"; 72 static char s_a3000p[] __initdata = "A3000+"; 73 static char s_a4000[] __initdata = "A4000"; 74 static char s_a4000t[] __initdata = "A4000T"; 75 static char s_cdtv[] __initdata = "CDTV"; 76 static char s_cd32[] __initdata = "CD32"; 77 static char s_draco[] __initdata = "Draco"; 78 static char *amiga_models[] __initdata = { 79 [AMI_500-AMI_500] = s_a500, 80 [AMI_500PLUS-AMI_500] = s_a500p, 81 [AMI_600-AMI_500] = s_a600, 82 [AMI_1000-AMI_500] = s_a1000, 83 [AMI_1200-AMI_500] = s_a1200, 84 [AMI_2000-AMI_500] = s_a2000, 85 [AMI_2500-AMI_500] = s_a2500, 86 [AMI_3000-AMI_500] = s_a3000, 87 [AMI_3000T-AMI_500] = s_a3000t, 88 [AMI_3000PLUS-AMI_500] = s_a3000p, 89 [AMI_4000-AMI_500] = s_a4000, 90 [AMI_4000T-AMI_500] = s_a4000t, 91 [AMI_CDTV-AMI_500] = s_cdtv, 92 [AMI_CD32-AMI_500] = s_cd32, 93 [AMI_DRACO-AMI_500] = s_draco, 94 }; 95 96 static char amiga_model_name[13] = "Amiga "; 97 98 static void amiga_sched_init(void); 99 static void amiga_get_model(char *model); 100 static void amiga_get_hardware_list(struct seq_file *m); 101 static void amiga_reset(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 amiga_parse_bootinfo(const struct bi_record * record)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); 183 184 /* CS-LAB Warp 1260 workaround */ 185 if (be16_to_cpu(dev->rom.er_Manufacturer) == ZORRO_MANUF(ZORRO_PROD_CSLAB_WARP_1260) && 186 dev->rom.er_Product == ZORRO_PROD(ZORRO_PROD_CSLAB_WARP_1260)) { 187 188 /* turn off all interrupts */ 189 pr_info("Warp 1260 card detected: applying interrupt storm workaround\n"); 190 *(uint32_t *)(dev->boardaddr + 0x1000) = 0xfff; 191 } 192 } else 193 pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n"); 194 #endif /* CONFIG_ZORRO */ 195 break; 196 197 case BI_AMIGA_SERPER: 198 /* serial port period: ignored here */ 199 break; 200 201 default: 202 unknown = 1; 203 } 204 return unknown; 205 } 206 207 /* 208 * Identify builtin hardware 209 */ 210 amiga_identify(void)211 static void __init amiga_identify(void) 212 { 213 /* Fill in some default values, if necessary */ 214 if (amiga_eclock == 0) 215 amiga_eclock = 709379; 216 217 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); 218 219 pr_info("Amiga hardware found: "); 220 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { 221 pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]); 222 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); 223 } 224 225 switch (amiga_model) { 226 case AMI_UNKNOWN: 227 break; 228 229 case AMI_600: 230 case AMI_1200: 231 AMIGAHW_SET(A1200_IDE); 232 AMIGAHW_SET(PCMCIA); 233 fallthrough; 234 case AMI_500: 235 case AMI_500PLUS: 236 case AMI_1000: 237 case AMI_2000: 238 case AMI_2500: 239 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ 240 break; 241 242 case AMI_3000: 243 case AMI_3000T: 244 AMIGAHW_SET(AMBER_FF); 245 AMIGAHW_SET(MAGIC_REKICK); 246 fallthrough; 247 case AMI_3000PLUS: 248 AMIGAHW_SET(A3000_SCSI); 249 AMIGAHW_SET(A3000_CLK); 250 AMIGAHW_SET(ZORRO3); 251 break; 252 253 case AMI_4000T: 254 AMIGAHW_SET(A4000_SCSI); 255 fallthrough; 256 case AMI_4000: 257 AMIGAHW_SET(A4000_IDE); 258 AMIGAHW_SET(A3000_CLK); 259 AMIGAHW_SET(ZORRO3); 260 break; 261 262 case AMI_CDTV: 263 case AMI_CD32: 264 AMIGAHW_SET(CD_ROM); 265 AMIGAHW_SET(A2000_CLK); /* Is this correct? */ 266 break; 267 268 case AMI_DRACO: 269 panic("No support for Draco yet"); 270 271 default: 272 panic("Unknown Amiga Model"); 273 } 274 275 AMIGAHW_SET(AMI_VIDEO); 276 AMIGAHW_SET(AMI_BLITTER); 277 AMIGAHW_SET(AMI_AUDIO); 278 AMIGAHW_SET(AMI_FLOPPY); 279 AMIGAHW_SET(AMI_KEYBOARD); 280 AMIGAHW_SET(AMI_MOUSE); 281 AMIGAHW_SET(AMI_SERIAL); 282 AMIGAHW_SET(AMI_PARALLEL); 283 AMIGAHW_SET(CHIP_RAM); 284 AMIGAHW_SET(PAULA); 285 286 switch (amiga_chipset) { 287 case CS_OCS: 288 case CS_ECS: 289 case CS_AGA: 290 switch (amiga_custom.deniseid & 0xf) { 291 case 0x0c: 292 AMIGAHW_SET(DENISE_HR); 293 break; 294 case 0x08: 295 AMIGAHW_SET(LISA); 296 break; 297 default: 298 AMIGAHW_SET(DENISE); 299 break; 300 } 301 break; 302 } 303 switch ((amiga_custom.vposr>>8) & 0x7f) { 304 case 0x00: 305 AMIGAHW_SET(AGNUS_PAL); 306 break; 307 case 0x10: 308 AMIGAHW_SET(AGNUS_NTSC); 309 break; 310 case 0x20: 311 case 0x21: 312 AMIGAHW_SET(AGNUS_HR_PAL); 313 break; 314 case 0x30: 315 case 0x31: 316 AMIGAHW_SET(AGNUS_HR_NTSC); 317 break; 318 case 0x22: 319 case 0x23: 320 AMIGAHW_SET(ALICE_PAL); 321 break; 322 case 0x32: 323 case 0x33: 324 AMIGAHW_SET(ALICE_NTSC); 325 break; 326 } 327 AMIGAHW_SET(ZORRO); 328 329 #define AMIGAHW_ANNOUNCE(name, str) \ 330 if (AMIGAHW_PRESENT(name)) \ 331 pr_cont(str) 332 333 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); 334 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); 335 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); 336 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); 337 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); 338 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); 339 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); 340 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); 341 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); 342 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); 343 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); 344 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); 345 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); 346 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); 347 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); 348 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); 349 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); 350 AMIGAHW_ANNOUNCE(PAULA, "PAULA "); 351 AMIGAHW_ANNOUNCE(DENISE, "DENISE "); 352 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); 353 AMIGAHW_ANNOUNCE(LISA, "LISA "); 354 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); 355 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); 356 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); 357 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); 358 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); 359 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); 360 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); 361 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); 362 if (AMIGAHW_PRESENT(ZORRO)) 363 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); 364 pr_cont("\n"); 365 366 #undef AMIGAHW_ANNOUNCE 367 } 368 369 amiga_random_get_entropy(void)370 static unsigned long amiga_random_get_entropy(void) 371 { 372 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */ 373 return *(unsigned long *)&amiga_custom.vposr; 374 } 375 376 377 /* 378 * Setup the Amiga configuration info 379 */ 380 config_amiga(void)381 void __init config_amiga(void) 382 { 383 int i; 384 385 amiga_identify(); 386 387 /* Yuk, we don't have PCI memory */ 388 iomem_resource.name = "Memory"; 389 for (i = 0; i < 4; i++) 390 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); 391 392 mach_sched_init = amiga_sched_init; 393 mach_init_IRQ = amiga_init_IRQ; 394 mach_get_model = amiga_get_model; 395 mach_get_hardware_list = amiga_get_hardware_list; 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 ciab_timer_handler(int irq,void * dev_id)478 static irqreturn_t ciab_timer_handler(int irq, void *dev_id) 479 { 480 clk_total += jiffy_ticks; 481 clk_offset = 0; 482 legacy_timer_tick(1); 483 timer_heartbeat(); 484 485 return IRQ_HANDLED; 486 } 487 amiga_sched_init(void)488 static void __init amiga_sched_init(void) 489 { 490 static struct resource sched_res = { 491 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, 492 }; 493 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ); 494 495 if (request_resource(&mb_resources._ciab, &sched_res)) 496 pr_warn("Cannot allocate ciab.ta{lo,hi}\n"); 497 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ 498 ciab.talo = jiffy_ticks % 256; 499 ciab.tahi = jiffy_ticks / 256; 500 501 /* install interrupt service routine for CIAB Timer A 502 * 503 * Please don't change this to use ciaa, as it interferes with the 504 * SCSI code. We'll have to take a look at this later 505 */ 506 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER, 507 "timer", NULL)) 508 pr_err("Couldn't register timer interrupt\n"); 509 /* start timer */ 510 ciab.cra |= 0x11; 511 512 clocksource_register_hz(&amiga_clk, amiga_eclock); 513 } 514 amiga_read_clk(struct clocksource * cs)515 static u64 amiga_read_clk(struct clocksource *cs) 516 { 517 unsigned short hi, lo, hi2; 518 unsigned long flags; 519 u32 ticks; 520 521 local_irq_save(flags); 522 523 /* read CIA B timer A current value */ 524 hi = ciab.tahi; 525 lo = ciab.talo; 526 hi2 = ciab.tahi; 527 528 if (hi != hi2) { 529 lo = ciab.talo; 530 hi = hi2; 531 } 532 533 ticks = hi << 8 | lo; 534 535 if (ticks > jiffy_ticks / 2) 536 /* check for pending interrupt */ 537 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA) 538 clk_offset = jiffy_ticks; 539 540 ticks = jiffy_ticks - ticks; 541 ticks += clk_offset + clk_total; 542 543 local_irq_restore(flags); 544 545 return ticks; 546 } 547 548 static void amiga_reset(void) __noreturn; 549 amiga_reset(void)550 static void amiga_reset(void) 551 { 552 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); 553 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); 554 555 local_irq_disable(); 556 if (CPU_IS_040_OR_060) 557 /* Setup transparent translation registers for mapping 558 * of 16 MB kernel segment before disabling translation 559 */ 560 asm volatile ("\n" 561 " move.l %0,%%d0\n" 562 " and.l #0xff000000,%%d0\n" 563 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ 564 " .chip 68040\n" 565 " movec %%d0,%%itt0\n" 566 " movec %%d0,%%dtt0\n" 567 " .chip 68k\n" 568 " jmp %0@\n" 569 : /* no outputs */ 570 : "a" (jmp_addr040) 571 : "d0"); 572 else 573 /* for 680[23]0, just disable translation and jump to the physical 574 * address of the label 575 */ 576 asm volatile ("\n" 577 " pmove %%tc,%@\n" 578 " bclr #7,%@\n" 579 " pmove %@,%%tc\n" 580 " jmp %0@\n" 581 : /* no outputs */ 582 : "a" (jmp_addr)); 583 jmp_addr_label040: 584 /* disable translation on '040 now */ 585 asm volatile ("\n" 586 " moveq #0,%%d0\n" 587 " .chip 68040\n" 588 " movec %%d0,%%tc\n" /* disable MMU */ 589 " .chip 68k\n" 590 : /* no outputs */ 591 : /* no inputs */ 592 : "d0"); 593 594 jmp_addr_label: 595 /* pickup reset address from AmigaOS ROM, reset devices and jump 596 * to reset address 597 */ 598 asm volatile ("\n" 599 " move.w #0x2700,%sr\n" 600 " lea 0x01000000,%a0\n" 601 " sub.l %a0@(-0x14),%a0\n" 602 " move.l %a0@(4),%a0\n" 603 " subq.l #2,%a0\n" 604 " jra 1f\n" 605 /* align on a longword boundary */ 606 " " __ALIGN_STR "\n" 607 "1:\n" 608 " reset\n" 609 " jmp %a0@"); 610 611 for (;;) 612 ; 613 } 614 615 616 /* 617 * Debugging 618 */ 619 620 #define SAVEKMSG_MAXMEM 128*1024 621 622 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ 623 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ 624 625 struct savekmsg { 626 unsigned long magic1; /* SAVEKMSG_MAGIC1 */ 627 unsigned long magic2; /* SAVEKMSG_MAGIC2 */ 628 unsigned long magicptr; /* address of magic1 */ 629 unsigned long size; 630 char data[]; 631 }; 632 633 static struct savekmsg *savekmsg; 634 amiga_mem_console_write(struct console * co,const char * s,unsigned int count)635 static void amiga_mem_console_write(struct console *co, const char *s, 636 unsigned int count) 637 { 638 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { 639 memcpy(savekmsg->data + savekmsg->size, s, count); 640 savekmsg->size += count; 641 } 642 } 643 amiga_savekmsg_setup(char * arg)644 static int __init amiga_savekmsg_setup(char *arg) 645 { 646 bool registered; 647 648 if (!MACH_IS_AMIGA || strcmp(arg, "mem")) 649 return 0; 650 651 if (amiga_chip_size < SAVEKMSG_MAXMEM) { 652 pr_err("Not enough chipram for debugging\n"); 653 return -ENOMEM; 654 } 655 656 /* Just steal the block, the chipram allocator isn't functional yet */ 657 amiga_chip_size -= SAVEKMSG_MAXMEM; 658 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size); 659 savekmsg->magic1 = SAVEKMSG_MAGIC1; 660 savekmsg->magic2 = SAVEKMSG_MAGIC2; 661 savekmsg->magicptr = ZTWO_PADDR(savekmsg); 662 savekmsg->size = 0; 663 664 registered = !!amiga_console_driver.write; 665 amiga_console_driver.write = amiga_mem_console_write; 666 if (!registered) 667 register_console(&amiga_console_driver); 668 return 0; 669 } 670 671 early_param("debug", amiga_savekmsg_setup); 672 amiga_serial_putc(char c)673 static void amiga_serial_putc(char c) 674 { 675 amiga_custom.serdat = (unsigned char)c | 0x100; 676 while (!(amiga_custom.serdatr & 0x2000)) 677 ; 678 } 679 amiga_serial_console_write(struct console * co,const char * s,unsigned int count)680 static void amiga_serial_console_write(struct console *co, const char *s, 681 unsigned int count) 682 { 683 while (count--) { 684 if (*s == '\n') 685 amiga_serial_putc('\r'); 686 amiga_serial_putc(*s++); 687 } 688 } 689 690 #if 0 691 void amiga_serial_puts(const char *s) 692 { 693 amiga_serial_console_write(NULL, s, strlen(s)); 694 } 695 696 int amiga_serial_console_wait_key(struct console *co) 697 { 698 int ch; 699 700 while (!(amiga_custom.intreqr & IF_RBF)) 701 barrier(); 702 ch = amiga_custom.serdatr & 0xff; 703 /* clear the interrupt, so that another character can be read */ 704 amiga_custom.intreq = IF_RBF; 705 return ch; 706 } 707 708 void amiga_serial_gets(struct console *co, char *s, int len) 709 { 710 int ch, cnt = 0; 711 712 while (1) { 713 ch = amiga_serial_console_wait_key(co); 714 715 /* Check for backspace. */ 716 if (ch == 8 || ch == 127) { 717 if (cnt == 0) { 718 amiga_serial_putc('\007'); 719 continue; 720 } 721 cnt--; 722 amiga_serial_puts("\010 \010"); 723 continue; 724 } 725 726 /* Check for enter. */ 727 if (ch == 10 || ch == 13) 728 break; 729 730 /* See if line is too long. */ 731 if (cnt >= len + 1) { 732 amiga_serial_putc(7); 733 cnt--; 734 continue; 735 } 736 737 /* Store and echo character. */ 738 s[cnt++] = ch; 739 amiga_serial_putc(ch); 740 } 741 /* Print enter. */ 742 amiga_serial_puts("\r\n"); 743 s[cnt] = 0; 744 } 745 #endif 746 amiga_debug_setup(char * arg)747 static int __init amiga_debug_setup(char *arg) 748 { 749 bool registered; 750 751 if (!MACH_IS_AMIGA || strcmp(arg, "ser")) 752 return 0; 753 754 /* no initialization required (?) */ 755 registered = !!amiga_console_driver.write; 756 amiga_console_driver.write = amiga_serial_console_write; 757 if (!registered) 758 register_console(&amiga_console_driver); 759 return 0; 760 } 761 762 early_param("debug", amiga_debug_setup); 763 764 #ifdef CONFIG_HEARTBEAT amiga_heartbeat(int on)765 static void amiga_heartbeat(int on) 766 { 767 if (on) 768 ciaa.pra &= ~2; 769 else 770 ciaa.pra |= 2; 771 } 772 #endif 773 774 /* 775 * Amiga specific parts of /proc 776 */ 777 amiga_get_model(char * model)778 static void amiga_get_model(char *model) 779 { 780 strcpy(model, amiga_model_name); 781 } 782 783 amiga_get_hardware_list(struct seq_file * m)784 static void amiga_get_hardware_list(struct seq_file *m) 785 { 786 if (AMIGAHW_PRESENT(CHIP_RAM)) 787 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); 788 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", 789 amiga_psfreq, amiga_eclock); 790 if (AMIGAHW_PRESENT(AMI_VIDEO)) { 791 char *type; 792 switch (amiga_chipset) { 793 case CS_OCS: 794 type = "OCS"; 795 break; 796 case CS_ECS: 797 type = "ECS"; 798 break; 799 case CS_AGA: 800 type = "AGA"; 801 break; 802 default: 803 type = "Old or Unknown"; 804 break; 805 } 806 seq_printf(m, "Graphics:\t%s\n", type); 807 } 808 809 #define AMIGAHW_ANNOUNCE(name, str) \ 810 if (AMIGAHW_PRESENT(name)) \ 811 seq_printf (m, "\t%s\n", str) 812 813 seq_puts(m, "Detected hardware:\n"); 814 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); 815 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); 816 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); 817 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); 818 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); 819 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); 820 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); 821 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); 822 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); 823 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); 824 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); 825 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); 826 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); 827 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); 828 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); 829 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); 830 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); 831 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); 832 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); 833 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); 834 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); 835 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); 836 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); 837 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); 838 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); 839 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); 840 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); 841 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); 842 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); 843 #ifdef CONFIG_ZORRO 844 if (AMIGAHW_PRESENT(ZORRO)) 845 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion " 846 "Device%s\n", 847 AMIGAHW_PRESENT(ZORRO3) ? "I" : "", 848 zorro_num_autocon, str_plural(zorro_num_autocon)); 849 #endif /* CONFIG_ZORRO */ 850 851 #undef AMIGAHW_ANNOUNCE 852 } 853 854 /* 855 * The Amiga keyboard driver needs key_maps, but we cannot export it in 856 * drivers/char/defkeymap.c, as it is autogenerated 857 */ 858 #ifdef CONFIG_VT 859 EXPORT_SYMBOL_GPL(key_maps); 860 #endif 861