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TOMOYO Linux Cross Reference
Linux/arch/m68k/amiga/config.c

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  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 
 40 static unsigned long amiga_model;
 41 
 42 unsigned long amiga_eclock;
 43 EXPORT_SYMBOL(amiga_eclock);
 44 
 45 unsigned long amiga_colorclock;
 46 EXPORT_SYMBOL(amiga_colorclock);
 47 
 48 unsigned long amiga_chipset;
 49 EXPORT_SYMBOL(amiga_chipset);
 50 
 51 unsigned char amiga_vblank;
 52 EXPORT_SYMBOL(amiga_vblank);
 53 
 54 static unsigned char amiga_psfreq;
 55 
 56 struct amiga_hw_present amiga_hw_present;
 57 EXPORT_SYMBOL(amiga_hw_present);
 58 
 59 static char s_a500[] __initdata = "A500";
 60 static char s_a500p[] __initdata = "A500+";
 61 static char s_a600[] __initdata = "A600";
 62 static char s_a1000[] __initdata = "A1000";
 63 static char s_a1200[] __initdata = "A1200";
 64 static char s_a2000[] __initdata = "A2000";
 65 static char s_a2500[] __initdata = "A2500";
 66 static char s_a3000[] __initdata = "A3000";
 67 static char s_a3000t[] __initdata = "A3000T";
 68 static char s_a3000p[] __initdata = "A3000+";
 69 static char s_a4000[] __initdata = "A4000";
 70 static char s_a4000t[] __initdata = "A4000T";
 71 static char s_cdtv[] __initdata = "CDTV";
 72 static char s_cd32[] __initdata = "CD32";
 73 static char s_draco[] __initdata = "Draco";
 74 static 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 
 92 static char amiga_model_name[13] = "Amiga ";
 93 
 94 static void amiga_sched_init(irq_handler_t handler);
 95 static void amiga_get_model(char *model);
 96 static void amiga_get_hardware_list(struct seq_file *m);
 97 /* amiga specific timer functions */
 98 static u32 amiga_gettimeoffset(void);
 99 extern void amiga_mksound(unsigned int count, unsigned int ticks);
100 static void amiga_reset(void);
101 extern void amiga_init_sound(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 
143 int 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 
202 static 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 
365 void __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         arch_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 
456 static unsigned short jiffy_ticks;
457 
458 static 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.  */
485 static u32 amiga_gettimeoffset(void)
486 {
487         unsigned short hi, lo, hi2;
488         u32 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) * 1000;
511 }
512 
513 static void amiga_reset(void)  __noreturn;
514 
515 static 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));
548 jmp_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 
590 struct 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 
598 static struct savekmsg *savekmsg;
599 
600 static 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 
609 static 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 
632 early_param("debug", amiga_savekmsg_setup);
633 
634 static void amiga_serial_putc(char c)
635 {
636         amiga_custom.serdat = (unsigned char)c | 0x100;
637         while (!(amiga_custom.serdatr & 0x2000))
638                 ;
639 }
640 
641 static 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
652 void amiga_serial_puts(const char *s)
653 {
654         amiga_serial_console_write(NULL, s, strlen(s));
655 }
656 
657 int 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 
669 void 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 
708 static 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 
718 early_param("debug", amiga_debug_setup);
719 
720 #ifdef CONFIG_HEARTBEAT
721 static 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 
734 static void amiga_get_model(char *model)
735 {
736         strcpy(model, amiga_model_name);
737 }
738 
739 
740 static 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
816 EXPORT_SYMBOL_GPL(key_maps);
817 #endif
818 

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