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
amiga_parse_bootinfo(const struct bi_record * record)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
amiga_identify(void)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
config_amiga(void)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
amiga_sched_init(irq_handler_t timer_routine)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. */
amiga_gettimeoffset(void)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
amiga_reset(void)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
amiga_mem_console_write(struct console * co,const char * s,unsigned int count)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
amiga_savekmsg_setup(char * arg)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
amiga_serial_putc(char c)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
amiga_serial_console_write(struct console * co,const char * s,unsigned int count)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
amiga_debug_setup(char * arg)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
amiga_heartbeat(int on)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
amiga_get_model(char * model)734 static void amiga_get_model(char *model)
735 {
736 strcpy(model, amiga_model_name);
737 }
738
739
amiga_get_hardware_list(struct seq_file * m)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