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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 unsigned long 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  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 
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 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 
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
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