linux/arch/m68k/amiga/config.c
<<
>>
Prefs
   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/setup.h>
  32#include <asm/pgtable.h>
  33#include <asm/amigahw.h>
  34#include <asm/amigaints.h>
  35#include <asm/irq.h>
  36#include <asm/rtc.h>
  37#include <asm/machdep.h>
  38#include <asm/io.h>
  39
  40static unsigned long amiga_model;
  41
  42unsigned long amiga_eclock;
  43EXPORT_SYMBOL(amiga_eclock);
  44
  45unsigned long amiga_colorclock;
  46EXPORT_SYMBOL(amiga_colorclock);
  47
  48unsigned long amiga_chipset;
  49EXPORT_SYMBOL(amiga_chipset);
  50
  51unsigned char amiga_vblank;
  52EXPORT_SYMBOL(amiga_vblank);
  53
  54static unsigned char amiga_psfreq;
  55
  56struct amiga_hw_present amiga_hw_present;
  57EXPORT_SYMBOL(amiga_hw_present);
  58
  59static char s_a500[] __initdata = "A500";
  60static char s_a500p[] __initdata = "A500+";
  61static char s_a600[] __initdata = "A600";
  62static char s_a1000[] __initdata = "A1000";
  63static char s_a1200[] __initdata = "A1200";
  64static char s_a2000[] __initdata = "A2000";
  65static char s_a2500[] __initdata = "A2500";
  66static char s_a3000[] __initdata = "A3000";
  67static char s_a3000t[] __initdata = "A3000T";
  68static char s_a3000p[] __initdata = "A3000+";
  69static char s_a4000[] __initdata = "A4000";
  70static char s_a4000t[] __initdata = "A4000T";
  71static char s_cdtv[] __initdata = "CDTV";
  72static char s_cd32[] __initdata = "CD32";
  73static char s_draco[] __initdata = "Draco";
  74static char *amiga_models[] __initdata = {
  75        [AMI_500-AMI_500]       = s_a500,
  76        [AMI_500PLUS-AMI_500]   = s_a500p,
  77        [AMI_600-AMI_500]       = s_a600,
  78        [AMI_1000-AMI_500]      = s_a1000,
  79        [AMI_1200-AMI_500]      = s_a1200,
  80        [AMI_2000-AMI_500]      = s_a2000,
  81        [AMI_2500-AMI_500]      = s_a2500,
  82        [AMI_3000-AMI_500]      = s_a3000,
  83        [AMI_3000T-AMI_500]     = s_a3000t,
  84        [AMI_3000PLUS-AMI_500]  = s_a3000p,
  85        [AMI_4000-AMI_500]      = s_a4000,
  86        [AMI_4000T-AMI_500]     = s_a4000t,
  87        [AMI_CDTV-AMI_500]      = s_cdtv,
  88        [AMI_CD32-AMI_500]      = s_cd32,
  89        [AMI_DRACO-AMI_500]     = s_draco,
  90};
  91
  92static char amiga_model_name[13] = "Amiga ";
  93
  94static void amiga_sched_init(irq_handler_t handler);
  95static void amiga_get_model(char *model);
  96static void amiga_get_hardware_list(struct seq_file *m);
  97/* amiga specific timer functions */
  98static unsigned long amiga_gettimeoffset(void);
  99extern void amiga_mksound(unsigned int count, unsigned int ticks);
 100static void amiga_reset(void);
 101extern void amiga_init_sound(void);
 102static void amiga_mem_console_write(struct console *co, const char *b,
 103                                    unsigned int count);
 104#ifdef CONFIG_HEARTBEAT
 105static void amiga_heartbeat(int on);
 106#endif
 107
 108static 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
 119static 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
 136static struct resource ram_resource[NUM_MEMINFO];
 137
 138
 139    /*
 140     *  Parse an Amiga-specific record in the bootinfo
 141     */
 142
 143int amiga_parse_bootinfo(const struct bi_record *record)
 144{
 145        int unknown = 0;
 146        const unsigned long *data = record->data;
 147
 148        switch (record->tag) {
 149        case BI_AMIGA_MODEL:
 150                amiga_model = *data;
 151                break;
 152
 153        case BI_AMIGA_ECLOCK:
 154                amiga_eclock = *data;
 155                break;
 156
 157        case BI_AMIGA_CHIPSET:
 158                amiga_chipset = *data;
 159                break;
 160
 161        case BI_AMIGA_CHIP_SIZE:
 162                amiga_chip_size = *(const int *)data;
 163                break;
 164
 165        case BI_AMIGA_VBLANK:
 166                amiga_vblank = *(const unsigned char *)data;
 167                break;
 168
 169        case BI_AMIGA_PSFREQ:
 170                amiga_psfreq = *(const unsigned char *)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 = (struct ConfigDev *)data;
 177                        struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
 178                        dev->rom = cd->cd_Rom;
 179                        dev->slotaddr = cd->cd_SlotAddr;
 180                        dev->slotsize = cd->cd_SlotSize;
 181                        dev->resource.start = (unsigned long)cd->cd_BoardAddr;
 182                        dev->resource.end = dev->resource.start + cd->cd_BoardSize - 1;
 183                } else
 184                        printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
 185#endif /* CONFIG_ZORRO */
 186                break;
 187
 188        case BI_AMIGA_SERPER:
 189                /* serial port period: ignored here */
 190                break;
 191
 192        default:
 193                unknown = 1;
 194        }
 195        return unknown;
 196}
 197
 198    /*
 199     *  Identify builtin hardware
 200     */
 201
 202static void __init amiga_identify(void)
 203{
 204        /* Fill in some default values, if necessary */
 205        if (amiga_eclock == 0)
 206                amiga_eclock = 709379;
 207
 208        memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
 209
 210        printk("Amiga hardware found: ");
 211        if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
 212                printk("[%s] ", amiga_models[amiga_model-AMI_500]);
 213                strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
 214        }
 215
 216        switch (amiga_model) {
 217        case AMI_UNKNOWN:
 218                goto Generic;
 219
 220        case AMI_600:
 221        case AMI_1200:
 222                AMIGAHW_SET(A1200_IDE);
 223                AMIGAHW_SET(PCMCIA);
 224        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                goto Generic;
 231
 232        case AMI_3000:
 233        case AMI_3000T:
 234                AMIGAHW_SET(AMBER_FF);
 235                AMIGAHW_SET(MAGIC_REKICK);
 236                /* fall through */
 237        case AMI_3000PLUS:
 238                AMIGAHW_SET(A3000_SCSI);
 239                AMIGAHW_SET(A3000_CLK);
 240                AMIGAHW_SET(ZORRO3);
 241                goto Generic;
 242
 243        case AMI_4000T:
 244                AMIGAHW_SET(A4000_SCSI);
 245                /* fall through */
 246        case AMI_4000:
 247                AMIGAHW_SET(A4000_IDE);
 248                AMIGAHW_SET(A3000_CLK);
 249                AMIGAHW_SET(ZORRO3);
 250                goto Generic;
 251
 252        case AMI_CDTV:
 253        case AMI_CD32:
 254                AMIGAHW_SET(CD_ROM);
 255                AMIGAHW_SET(A2000_CLK);             /* Is this correct? */
 256                goto Generic;
 257
 258        Generic:
 259                AMIGAHW_SET(AMI_VIDEO);
 260                AMIGAHW_SET(AMI_BLITTER);
 261                AMIGAHW_SET(AMI_AUDIO);
 262                AMIGAHW_SET(AMI_FLOPPY);
 263                AMIGAHW_SET(AMI_KEYBOARD);
 264                AMIGAHW_SET(AMI_MOUSE);
 265                AMIGAHW_SET(AMI_SERIAL);
 266                AMIGAHW_SET(AMI_PARALLEL);
 267                AMIGAHW_SET(CHIP_RAM);
 268                AMIGAHW_SET(PAULA);
 269
 270                switch (amiga_chipset) {
 271                case CS_OCS:
 272                case CS_ECS:
 273                case CS_AGA:
 274                        switch (amiga_custom.deniseid & 0xf) {
 275                        case 0x0c:
 276                                AMIGAHW_SET(DENISE_HR);
 277                                break;
 278                        case 0x08:
 279                                AMIGAHW_SET(LISA);
 280                                break;
 281                        }
 282                        break;
 283                default:
 284                        AMIGAHW_SET(DENISE);
 285                        break;
 286                }
 287                switch ((amiga_custom.vposr>>8) & 0x7f) {
 288                case 0x00:
 289                        AMIGAHW_SET(AGNUS_PAL);
 290                        break;
 291                case 0x10:
 292                        AMIGAHW_SET(AGNUS_NTSC);
 293                        break;
 294                case 0x20:
 295                case 0x21:
 296                        AMIGAHW_SET(AGNUS_HR_PAL);
 297                        break;
 298                case 0x30:
 299                case 0x31:
 300                        AMIGAHW_SET(AGNUS_HR_NTSC);
 301                        break;
 302                case 0x22:
 303                case 0x23:
 304                        AMIGAHW_SET(ALICE_PAL);
 305                        break;
 306                case 0x32:
 307                case 0x33:
 308                        AMIGAHW_SET(ALICE_NTSC);
 309                        break;
 310                }
 311                AMIGAHW_SET(ZORRO);
 312                break;
 313
 314        case AMI_DRACO:
 315                panic("No support for Draco yet");
 316
 317        default:
 318                panic("Unknown Amiga Model");
 319        }
 320
 321#define AMIGAHW_ANNOUNCE(name, str)             \
 322        if (AMIGAHW_PRESENT(name))              \
 323                printk(str)
 324
 325        AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
 326        AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
 327        AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
 328        AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
 329        AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
 330        AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
 331        AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
 332        AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
 333        AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
 334        AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
 335        AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
 336        AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
 337        AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
 338        AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
 339        AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
 340        AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
 341        AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
 342        AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
 343        AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
 344        AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
 345        AMIGAHW_ANNOUNCE(LISA, "LISA ");
 346        AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
 347        AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
 348        AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
 349        AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
 350        AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
 351        AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
 352        AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
 353        AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
 354        if (AMIGAHW_PRESENT(ZORRO))
 355                printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
 356        printk("\n");
 357
 358#undef AMIGAHW_ANNOUNCE
 359}
 360
 361    /*
 362     *  Setup the Amiga configuration info
 363     */
 364
 365void __init config_amiga(void)
 366{
 367        int i;
 368
 369        amiga_identify();
 370
 371        /* Yuk, we don't have PCI memory */
 372        iomem_resource.name = "Memory";
 373        for (i = 0; i < 4; i++)
 374                request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
 375
 376        mach_sched_init      = amiga_sched_init;
 377        mach_init_IRQ        = amiga_init_IRQ;
 378        mach_get_model       = amiga_get_model;
 379        mach_get_hardware_list = amiga_get_hardware_list;
 380        mach_gettimeoffset   = amiga_gettimeoffset;
 381
 382        /*
 383         * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI
 384         * code will not be able to allocate any mem for transfers, unless we are
 385         * dealing with a Z2 mem only system.                  /Jes
 386         */
 387        mach_max_dma_address = 0xffffffff;
 388
 389        mach_reset           = amiga_reset;
 390#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 391        mach_beep            = amiga_mksound;
 392#endif
 393
 394#ifdef CONFIG_HEARTBEAT
 395        mach_heartbeat = amiga_heartbeat;
 396#endif
 397
 398        /* Fill in the clock value (based on the 700 kHz E-Clock) */
 399        amiga_colorclock = 5*amiga_eclock;      /* 3.5 MHz */
 400
 401        /* clear all DMA bits */
 402        amiga_custom.dmacon = DMAF_ALL;
 403        /* ensure that the DMA master bit is set */
 404        amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
 405
 406        /* don't use Z2 RAM as system memory on Z3 capable machines */
 407        if (AMIGAHW_PRESENT(ZORRO3)) {
 408                int i, j;
 409                u32 disabled_z2mem = 0;
 410
 411                for (i = 0; i < m68k_num_memory; i++) {
 412                        if (m68k_memory[i].addr < 16*1024*1024) {
 413                                if (i == 0) {
 414                                        /* don't cut off the branch we're sitting on */
 415                                        printk("Warning: kernel runs in Zorro II memory\n");
 416                                        continue;
 417                                }
 418                                disabled_z2mem += m68k_memory[i].size;
 419                                m68k_num_memory--;
 420                                for (j = i; j < m68k_num_memory; j++)
 421                                        m68k_memory[j] = m68k_memory[j+1];
 422                                i--;
 423                        }
 424                }
 425                if (disabled_z2mem)
 426                printk("%dK of Zorro II memory will not be used as system memory\n",
 427                disabled_z2mem>>10);
 428        }
 429
 430        /* request all RAM */
 431        for (i = 0; i < m68k_num_memory; i++) {
 432                ram_resource[i].name =
 433                        (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
 434                        (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
 435                        "16-bit Slow RAM";
 436                ram_resource[i].start = m68k_memory[i].addr;
 437                ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
 438                request_resource(&iomem_resource, &ram_resource[i]);
 439        }
 440
 441        /* initialize chipram allocator */
 442        amiga_chip_init();
 443
 444        /* our beloved beeper */
 445        if (AMIGAHW_PRESENT(AMI_AUDIO))
 446                amiga_init_sound();
 447
 448        /*
 449         * if it is an A3000, set the magic bit that forces
 450         * a hard rekick
 451         */
 452        if (AMIGAHW_PRESENT(MAGIC_REKICK))
 453                *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
 454}
 455
 456static unsigned short jiffy_ticks;
 457
 458static void __init amiga_sched_init(irq_handler_t timer_routine)
 459{
 460        static struct resource sched_res = {
 461                .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
 462        };
 463        jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
 464
 465        if (request_resource(&mb_resources._ciab, &sched_res))
 466                printk("Cannot allocate ciab.ta{lo,hi}\n");
 467        ciab.cra &= 0xC0;   /* turn off timer A, continuous mode, from Eclk */
 468        ciab.talo = jiffy_ticks % 256;
 469        ciab.tahi = jiffy_ticks / 256;
 470
 471        /* install interrupt service routine for CIAB Timer A
 472         *
 473         * Please don't change this to use ciaa, as it interferes with the
 474         * SCSI code. We'll have to take a look at this later
 475         */
 476        if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL))
 477                pr_err("Couldn't register timer interrupt\n");
 478        /* start timer */
 479        ciab.cra |= 0x11;
 480}
 481
 482#define TICK_SIZE 10000
 483
 484/* This is always executed with interrupts disabled.  */
 485static unsigned long amiga_gettimeoffset(void)
 486{
 487        unsigned short hi, lo, hi2;
 488        unsigned long ticks, offset = 0;
 489
 490        /* read CIA B timer A current value */
 491        hi  = ciab.tahi;
 492        lo  = ciab.talo;
 493        hi2 = ciab.tahi;
 494
 495        if (hi != hi2) {
 496                lo = ciab.talo;
 497                hi = hi2;
 498        }
 499
 500        ticks = hi << 8 | lo;
 501
 502        if (ticks > jiffy_ticks / 2)
 503                /* check for pending interrupt */
 504                if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
 505                        offset = 10000;
 506
 507        ticks = jiffy_ticks - ticks;
 508        ticks = (10000 * ticks) / jiffy_ticks;
 509
 510        return ticks + offset;
 511}
 512
 513static void amiga_reset(void)  __noreturn;
 514
 515static void amiga_reset(void)
 516{
 517        unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
 518        unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
 519
 520        local_irq_disable();
 521        if (CPU_IS_040_OR_060)
 522                /* Setup transparent translation registers for mapping
 523                 * of 16 MB kernel segment before disabling translation
 524                 */
 525                asm volatile ("\n"
 526                        "       move.l  %0,%%d0\n"
 527                        "       and.l   #0xff000000,%%d0\n"
 528                        "       or.w    #0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
 529                        "       .chip   68040\n"
 530                        "       movec   %%d0,%%itt0\n"
 531                        "       movec   %%d0,%%dtt0\n"
 532                        "       .chip   68k\n"
 533                        "       jmp     %0@\n"
 534                        : /* no outputs */
 535                        : "a" (jmp_addr040)
 536                        : "d0");
 537        else
 538                /* for 680[23]0, just disable translation and jump to the physical
 539                 * address of the label
 540                 */
 541                asm volatile ("\n"
 542                        "       pmove   %%tc,%@\n"
 543                        "       bclr    #7,%@\n"
 544                        "       pmove   %@,%%tc\n"
 545                        "       jmp     %0@\n"
 546                        : /* no outputs */
 547                        : "a" (jmp_addr));
 548jmp_addr_label040:
 549        /* disable translation on '040 now */
 550        asm volatile ("\n"
 551                "       moveq   #0,%%d0\n"
 552                "       .chip   68040\n"
 553                "       movec   %%d0,%%tc\n"    /* disable MMU */
 554                "       .chip   68k\n"
 555                : /* no outputs */
 556                : /* no inputs */
 557                : "d0");
 558
 559        jmp_addr_label:
 560        /* pickup reset address from AmigaOS ROM, reset devices and jump
 561         * to reset address
 562         */
 563        asm volatile ("\n"
 564                "       move.w  #0x2700,%sr\n"
 565                "       lea     0x01000000,%a0\n"
 566                "       sub.l   %a0@(-0x14),%a0\n"
 567                "       move.l  %a0@(4),%a0\n"
 568                "       subq.l  #2,%a0\n"
 569                "       jra     1f\n"
 570                /* align on a longword boundary */
 571                "       " __ALIGN_STR "\n"
 572                "1:\n"
 573                "       reset\n"
 574                "       jmp   %a0@");
 575
 576        for (;;)
 577                ;
 578}
 579
 580
 581    /*
 582     *  Debugging
 583     */
 584
 585#define SAVEKMSG_MAXMEM         128*1024
 586
 587#define SAVEKMSG_MAGIC1         0x53415645      /* 'SAVE' */
 588#define SAVEKMSG_MAGIC2         0x4B4D5347      /* 'KMSG' */
 589
 590struct savekmsg {
 591        unsigned long magic1;           /* SAVEKMSG_MAGIC1 */
 592        unsigned long magic2;           /* SAVEKMSG_MAGIC2 */
 593        unsigned long magicptr;         /* address of magic1 */
 594        unsigned long size;
 595        char data[0];
 596};
 597
 598static struct savekmsg *savekmsg;
 599
 600static void amiga_mem_console_write(struct console *co, const char *s,
 601                                    unsigned int count)
 602{
 603        if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
 604                memcpy(savekmsg->data + savekmsg->size, s, count);
 605                savekmsg->size += count;
 606        }
 607}
 608
 609static int __init amiga_savekmsg_setup(char *arg)
 610{
 611        if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
 612                return 0;
 613
 614        if (amiga_chip_size < SAVEKMSG_MAXMEM) {
 615                pr_err("Not enough chipram for debugging\n");
 616                return -ENOMEM;
 617        }
 618
 619        /* Just steal the block, the chipram allocator isn't functional yet */
 620        amiga_chip_size -= SAVEKMSG_MAXMEM;
 621        savekmsg = (void *)ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
 622        savekmsg->magic1 = SAVEKMSG_MAGIC1;
 623        savekmsg->magic2 = SAVEKMSG_MAGIC2;
 624        savekmsg->magicptr = ZTWO_PADDR(savekmsg);
 625        savekmsg->size = 0;
 626
 627        amiga_console_driver.write = amiga_mem_console_write;
 628        register_console(&amiga_console_driver);
 629        return 0;
 630}
 631
 632early_param("debug", amiga_savekmsg_setup);
 633
 634static void amiga_serial_putc(char c)
 635{
 636        amiga_custom.serdat = (unsigned char)c | 0x100;
 637        while (!(amiga_custom.serdatr & 0x2000))
 638                ;
 639}
 640
 641static void amiga_serial_console_write(struct console *co, const char *s,
 642                                       unsigned int count)
 643{
 644        while (count--) {
 645                if (*s == '\n')
 646                        amiga_serial_putc('\r');
 647                amiga_serial_putc(*s++);
 648        }
 649}
 650
 651#if 0
 652void amiga_serial_puts(const char *s)
 653{
 654        amiga_serial_console_write(NULL, s, strlen(s));
 655}
 656
 657int amiga_serial_console_wait_key(struct console *co)
 658{
 659        int ch;
 660
 661        while (!(amiga_custom.intreqr & IF_RBF))
 662                barrier();
 663        ch = amiga_custom.serdatr & 0xff;
 664        /* clear the interrupt, so that another character can be read */
 665        amiga_custom.intreq = IF_RBF;
 666        return ch;
 667}
 668
 669void amiga_serial_gets(struct console *co, char *s, int len)
 670{
 671        int ch, cnt = 0;
 672
 673        while (1) {
 674                ch = amiga_serial_console_wait_key(co);
 675
 676                /* Check for backspace. */
 677                if (ch == 8 || ch == 127) {
 678                        if (cnt == 0) {
 679                                amiga_serial_putc('\007');
 680                                continue;
 681                        }
 682                        cnt--;
 683                        amiga_serial_puts("\010 \010");
 684                        continue;
 685                }
 686
 687                /* Check for enter. */
 688                if (ch == 10 || ch == 13)
 689                        break;
 690
 691                /* See if line is too long. */
 692                if (cnt >= len + 1) {
 693                        amiga_serial_putc(7);
 694                        cnt--;
 695                        continue;
 696                }
 697
 698                /* Store and echo character. */
 699                s[cnt++] = ch;
 700                amiga_serial_putc(ch);
 701        }
 702        /* Print enter. */
 703        amiga_serial_puts("\r\n");
 704        s[cnt] = 0;
 705}
 706#endif
 707
 708static int __init amiga_debug_setup(char *arg)
 709{
 710        if (MACH_IS_AMIGA && !strcmp(arg, "ser")) {
 711                /* no initialization required (?) */
 712                amiga_console_driver.write = amiga_serial_console_write;
 713                register_console(&amiga_console_driver);
 714        }
 715        return 0;
 716}
 717
 718early_param("debug", amiga_debug_setup);
 719
 720#ifdef CONFIG_HEARTBEAT
 721static void amiga_heartbeat(int on)
 722{
 723        if (on)
 724                ciaa.pra &= ~2;
 725        else
 726                ciaa.pra |= 2;
 727}
 728#endif
 729
 730    /*
 731     *  Amiga specific parts of /proc
 732     */
 733
 734static void amiga_get_model(char *model)
 735{
 736        strcpy(model, amiga_model_name);
 737}
 738
 739
 740static void amiga_get_hardware_list(struct seq_file *m)
 741{
 742        if (AMIGAHW_PRESENT(CHIP_RAM))
 743                seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
 744        seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
 745                        amiga_psfreq, amiga_eclock);
 746        if (AMIGAHW_PRESENT(AMI_VIDEO)) {
 747                char *type;
 748                switch (amiga_chipset) {
 749                case CS_OCS:
 750                        type = "OCS";
 751                        break;
 752                case CS_ECS:
 753                        type = "ECS";
 754                        break;
 755                case CS_AGA:
 756                        type = "AGA";
 757                        break;
 758                default:
 759                        type = "Old or Unknown";
 760                        break;
 761                }
 762                seq_printf(m, "Graphics:\t%s\n", type);
 763        }
 764
 765#define AMIGAHW_ANNOUNCE(name, str)                     \
 766        if (AMIGAHW_PRESENT(name))                      \
 767                seq_printf (m, "\t%s\n", str)
 768
 769        seq_printf (m, "Detected hardware:\n");
 770
 771        AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
 772        AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
 773        AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
 774        AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
 775        AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
 776        AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
 777        AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
 778        AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
 779        AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
 780        AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
 781        AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
 782        AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
 783        AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
 784        AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
 785        AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
 786        AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
 787        AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
 788        AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
 789        AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
 790        AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
 791        AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
 792        AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
 793        AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
 794        AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
 795        AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
 796        AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
 797        AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
 798        AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
 799        AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
 800#ifdef CONFIG_ZORRO
 801        if (AMIGAHW_PRESENT(ZORRO))
 802                seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
 803                                "Device%s\n",
 804                                AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
 805                                zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
 806#endif /* CONFIG_ZORRO */
 807
 808#undef AMIGAHW_ANNOUNCE
 809}
 810
 811/*
 812 * The Amiga keyboard driver needs key_maps, but we cannot export it in
 813 * drivers/char/defkeymap.c, as it is autogenerated
 814 */
 815#ifdef CONFIG_HW_CONSOLE
 816EXPORT_SYMBOL_GPL(key_maps);
 817#endif
 818