1 /*
2 * linux/arch/m68k/amiga/config.c
3 *
4 * Copyright (C) 1993 Hamish Macdonald
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
8 * for more details.
9 */
10
11 /*
12 * Miscellaneous Amiga stuff
13 */
14
15 #include <linux/types.h>
16 #include <linux/kernel.h>
17 #include <linux/mm.h>
18 #include <linux/seq_file.h>
19 #include <linux/tty.h>
20 #include <linux/clocksource.h>
21 #include <linux/console.h>
22 #include <linux/rtc.h>
23 #include <linux/init.h>
24 #include <linux/vt_kern.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/zorro.h>
28 #include <linux/module.h>
29 #include <linux/keyboard.h>
30
31 #include <asm/bootinfo.h>
32 #include <asm/bootinfo-amiga.h>
33 #include <asm/byteorder.h>
34 #include <asm/setup.h>
35 #include <asm/amigahw.h>
36 #include <asm/amigaints.h>
37 #include <asm/irq.h>
38 #include <asm/machdep.h>
39 #include <asm/io.h>
40 #include <asm/config.h>
41
42 static unsigned long amiga_model;
43
44 unsigned long amiga_eclock;
45 EXPORT_SYMBOL(amiga_eclock);
46
47 unsigned long amiga_colorclock;
48 EXPORT_SYMBOL(amiga_colorclock);
49
50 unsigned long amiga_chipset;
51 EXPORT_SYMBOL(amiga_chipset);
52
53 unsigned char amiga_vblank;
54 EXPORT_SYMBOL(amiga_vblank);
55
56 static unsigned char amiga_psfreq;
57
58 struct amiga_hw_present amiga_hw_present;
59 EXPORT_SYMBOL(amiga_hw_present);
60
61 static char s_a500[] __initdata = "A500";
62 static char s_a500p[] __initdata = "A500+";
63 static char s_a600[] __initdata = "A600";
64 static char s_a1000[] __initdata = "A1000";
65 static char s_a1200[] __initdata = "A1200";
66 static char s_a2000[] __initdata = "A2000";
67 static char s_a2500[] __initdata = "A2500";
68 static char s_a3000[] __initdata = "A3000";
69 static char s_a3000t[] __initdata = "A3000T";
70 static char s_a3000p[] __initdata = "A3000+";
71 static char s_a4000[] __initdata = "A4000";
72 static char s_a4000t[] __initdata = "A4000T";
73 static char s_cdtv[] __initdata = "CDTV";
74 static char s_cd32[] __initdata = "CD32";
75 static char s_draco[] __initdata = "Draco";
76 static char *amiga_models[] __initdata = {
77 [AMI_500-AMI_500] = s_a500,
78 [AMI_500PLUS-AMI_500] = s_a500p,
79 [AMI_600-AMI_500] = s_a600,
80 [AMI_1000-AMI_500] = s_a1000,
81 [AMI_1200-AMI_500] = s_a1200,
82 [AMI_2000-AMI_500] = s_a2000,
83 [AMI_2500-AMI_500] = s_a2500,
84 [AMI_3000-AMI_500] = s_a3000,
85 [AMI_3000T-AMI_500] = s_a3000t,
86 [AMI_3000PLUS-AMI_500] = s_a3000p,
87 [AMI_4000-AMI_500] = s_a4000,
88 [AMI_4000T-AMI_500] = s_a4000t,
89 [AMI_CDTV-AMI_500] = s_cdtv,
90 [AMI_CD32-AMI_500] = s_cd32,
91 [AMI_DRACO-AMI_500] = s_draco,
92 };
93
94 static char amiga_model_name[13] = "Amiga ";
95
96 static void amiga_sched_init(void);
97 static void amiga_get_model(char *model);
98 static void amiga_get_hardware_list(struct seq_file *m);
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 __init amiga_parse_bootinfo(const struct bi_record *record)
144 {
145 int unknown = 0;
146 const void *data = record->data;
147
148 switch (be16_to_cpu(record->tag)) {
149 case BI_AMIGA_MODEL:
150 amiga_model = be32_to_cpup(data);
151 break;
152
153 case BI_AMIGA_ECLOCK:
154 amiga_eclock = be32_to_cpup(data);
155 break;
156
157 case BI_AMIGA_CHIPSET:
158 amiga_chipset = be32_to_cpup(data);
159 break;
160
161 case BI_AMIGA_CHIP_SIZE:
162 amiga_chip_size = be32_to_cpup(data);
163 break;
164
165 case BI_AMIGA_VBLANK:
166 amiga_vblank = *(const __u8 *)data;
167 break;
168
169 case BI_AMIGA_PSFREQ:
170 amiga_psfreq = *(const __u8 *)data;
171 break;
172
173 case BI_AMIGA_AUTOCON:
174 #ifdef CONFIG_ZORRO
175 if (zorro_num_autocon < ZORRO_NUM_AUTO) {
176 const struct ConfigDev *cd = data;
177 struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++];
178 dev->rom = cd->cd_Rom;
179 dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr);
180 dev->slotsize = be16_to_cpu(cd->cd_SlotSize);
181 dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr);
182 dev->boardsize = be32_to_cpu(cd->cd_BoardSize);
183 } else
184 pr_warn("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 pr_info("Amiga hardware found: ");
211 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
212 pr_cont("[%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 break;
219
220 case AMI_600:
221 case AMI_1200:
222 AMIGAHW_SET(A1200_IDE);
223 AMIGAHW_SET(PCMCIA);
224 fallthrough;
225 case AMI_500:
226 case AMI_500PLUS:
227 case AMI_1000:
228 case AMI_2000:
229 case AMI_2500:
230 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
231 break;
232
233 case AMI_3000:
234 case AMI_3000T:
235 AMIGAHW_SET(AMBER_FF);
236 AMIGAHW_SET(MAGIC_REKICK);
237 fallthrough;
238 case AMI_3000PLUS:
239 AMIGAHW_SET(A3000_SCSI);
240 AMIGAHW_SET(A3000_CLK);
241 AMIGAHW_SET(ZORRO3);
242 break;
243
244 case AMI_4000T:
245 AMIGAHW_SET(A4000_SCSI);
246 fallthrough;
247 case AMI_4000:
248 AMIGAHW_SET(A4000_IDE);
249 AMIGAHW_SET(A3000_CLK);
250 AMIGAHW_SET(ZORRO3);
251 break;
252
253 case AMI_CDTV:
254 case AMI_CD32:
255 AMIGAHW_SET(CD_ROM);
256 AMIGAHW_SET(A2000_CLK); /* Is this correct? */
257 break;
258
259 case AMI_DRACO:
260 panic("No support for Draco yet");
261
262 default:
263 panic("Unknown Amiga Model");
264 }
265
266 AMIGAHW_SET(AMI_VIDEO);
267 AMIGAHW_SET(AMI_BLITTER);
268 AMIGAHW_SET(AMI_AUDIO);
269 AMIGAHW_SET(AMI_FLOPPY);
270 AMIGAHW_SET(AMI_KEYBOARD);
271 AMIGAHW_SET(AMI_MOUSE);
272 AMIGAHW_SET(AMI_SERIAL);
273 AMIGAHW_SET(AMI_PARALLEL);
274 AMIGAHW_SET(CHIP_RAM);
275 AMIGAHW_SET(PAULA);
276
277 switch (amiga_chipset) {
278 case CS_OCS:
279 case CS_ECS:
280 case CS_AGA:
281 switch (amiga_custom.deniseid & 0xf) {
282 case 0x0c:
283 AMIGAHW_SET(DENISE_HR);
284 break;
285 case 0x08:
286 AMIGAHW_SET(LISA);
287 break;
288 default:
289 AMIGAHW_SET(DENISE);
290 break;
291 }
292 break;
293 }
294 switch ((amiga_custom.vposr>>8) & 0x7f) {
295 case 0x00:
296 AMIGAHW_SET(AGNUS_PAL);
297 break;
298 case 0x10:
299 AMIGAHW_SET(AGNUS_NTSC);
300 break;
301 case 0x20:
302 case 0x21:
303 AMIGAHW_SET(AGNUS_HR_PAL);
304 break;
305 case 0x30:
306 case 0x31:
307 AMIGAHW_SET(AGNUS_HR_NTSC);
308 break;
309 case 0x22:
310 case 0x23:
311 AMIGAHW_SET(ALICE_PAL);
312 break;
313 case 0x32:
314 case 0x33:
315 AMIGAHW_SET(ALICE_NTSC);
316 break;
317 }
318 AMIGAHW_SET(ZORRO);
319
320 #define AMIGAHW_ANNOUNCE(name, str) \
321 if (AMIGAHW_PRESENT(name)) \
322 pr_cont(str)
323
324 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
325 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
326 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
327 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
328 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
329 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
330 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
331 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
332 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
333 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
334 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
335 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
336 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
337 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
338 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
339 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
340 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
341 AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
342 AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
343 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
344 AMIGAHW_ANNOUNCE(LISA, "LISA ");
345 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
346 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
347 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
348 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
349 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
350 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
351 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
352 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
353 if (AMIGAHW_PRESENT(ZORRO))
354 pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
355 pr_cont("\n");
356
357 #undef AMIGAHW_ANNOUNCE
358 }
359
360
amiga_random_get_entropy(void)361 static unsigned long amiga_random_get_entropy(void)
362 {
363 /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */
364 return *(unsigned long *)&amiga_custom.vposr;
365 }
366
367
368 /*
369 * Setup the Amiga configuration info
370 */
371
config_amiga(void)372 void __init config_amiga(void)
373 {
374 int i;
375
376 amiga_identify();
377
378 /* Yuk, we don't have PCI memory */
379 iomem_resource.name = "Memory";
380 for (i = 0; i < 4; i++)
381 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
382
383 mach_sched_init = amiga_sched_init;
384 mach_init_IRQ = amiga_init_IRQ;
385 mach_get_model = amiga_get_model;
386 mach_get_hardware_list = amiga_get_hardware_list;
387 mach_reset = amiga_reset;
388 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
389 mach_beep = amiga_mksound;
390 #endif
391
392 #ifdef CONFIG_HEARTBEAT
393 mach_heartbeat = amiga_heartbeat;
394 #endif
395
396 mach_random_get_entropy = amiga_random_get_entropy;
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 pr_warn("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 pr_info("%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 u64 amiga_read_clk(struct clocksource *cs);
457
458 static struct clocksource amiga_clk = {
459 .name = "ciab",
460 .rating = 250,
461 .read = amiga_read_clk,
462 .mask = CLOCKSOURCE_MASK(32),
463 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
464 };
465
466 static unsigned short jiffy_ticks;
467 static u32 clk_total, clk_offset;
468
ciab_timer_handler(int irq,void * dev_id)469 static irqreturn_t ciab_timer_handler(int irq, void *dev_id)
470 {
471 clk_total += jiffy_ticks;
472 clk_offset = 0;
473 legacy_timer_tick(1);
474 timer_heartbeat();
475
476 return IRQ_HANDLED;
477 }
478
amiga_sched_init(void)479 static void __init amiga_sched_init(void)
480 {
481 static struct resource sched_res = {
482 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
483 };
484 jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
485
486 if (request_resource(&mb_resources._ciab, &sched_res))
487 pr_warn("Cannot allocate ciab.ta{lo,hi}\n");
488 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
489 ciab.talo = jiffy_ticks % 256;
490 ciab.tahi = jiffy_ticks / 256;
491
492 /* install interrupt service routine for CIAB Timer A
493 *
494 * Please don't change this to use ciaa, as it interferes with the
495 * SCSI code. We'll have to take a look at this later
496 */
497 if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER,
498 "timer", NULL))
499 pr_err("Couldn't register timer interrupt\n");
500 /* start timer */
501 ciab.cra |= 0x11;
502
503 clocksource_register_hz(&amiga_clk, amiga_eclock);
504 }
505
amiga_read_clk(struct clocksource * cs)506 static u64 amiga_read_clk(struct clocksource *cs)
507 {
508 unsigned short hi, lo, hi2;
509 unsigned long flags;
510 u32 ticks;
511
512 local_irq_save(flags);
513
514 /* read CIA B timer A current value */
515 hi = ciab.tahi;
516 lo = ciab.talo;
517 hi2 = ciab.tahi;
518
519 if (hi != hi2) {
520 lo = ciab.talo;
521 hi = hi2;
522 }
523
524 ticks = hi << 8 | lo;
525
526 if (ticks > jiffy_ticks / 2)
527 /* check for pending interrupt */
528 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
529 clk_offset = jiffy_ticks;
530
531 ticks = jiffy_ticks - ticks;
532 ticks += clk_offset + clk_total;
533
534 local_irq_restore(flags);
535
536 return ticks;
537 }
538
539 static void amiga_reset(void) __noreturn;
540
amiga_reset(void)541 static void amiga_reset(void)
542 {
543 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
544 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
545
546 local_irq_disable();
547 if (CPU_IS_040_OR_060)
548 /* Setup transparent translation registers for mapping
549 * of 16 MB kernel segment before disabling translation
550 */
551 asm volatile ("\n"
552 " move.l %0,%%d0\n"
553 " and.l #0xff000000,%%d0\n"
554 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */
555 " .chip 68040\n"
556 " movec %%d0,%%itt0\n"
557 " movec %%d0,%%dtt0\n"
558 " .chip 68k\n"
559 " jmp %0@\n"
560 : /* no outputs */
561 : "a" (jmp_addr040)
562 : "d0");
563 else
564 /* for 680[23]0, just disable translation and jump to the physical
565 * address of the label
566 */
567 asm volatile ("\n"
568 " pmove %%tc,%@\n"
569 " bclr #7,%@\n"
570 " pmove %@,%%tc\n"
571 " jmp %0@\n"
572 : /* no outputs */
573 : "a" (jmp_addr));
574 jmp_addr_label040:
575 /* disable translation on '040 now */
576 asm volatile ("\n"
577 " moveq #0,%%d0\n"
578 " .chip 68040\n"
579 " movec %%d0,%%tc\n" /* disable MMU */
580 " .chip 68k\n"
581 : /* no outputs */
582 : /* no inputs */
583 : "d0");
584
585 jmp_addr_label:
586 /* pickup reset address from AmigaOS ROM, reset devices and jump
587 * to reset address
588 */
589 asm volatile ("\n"
590 " move.w #0x2700,%sr\n"
591 " lea 0x01000000,%a0\n"
592 " sub.l %a0@(-0x14),%a0\n"
593 " move.l %a0@(4),%a0\n"
594 " subq.l #2,%a0\n"
595 " jra 1f\n"
596 /* align on a longword boundary */
597 " " __ALIGN_STR "\n"
598 "1:\n"
599 " reset\n"
600 " jmp %a0@");
601
602 for (;;)
603 ;
604 }
605
606
607 /*
608 * Debugging
609 */
610
611 #define SAVEKMSG_MAXMEM 128*1024
612
613 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
614 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
615
616 struct savekmsg {
617 unsigned long magic1; /* SAVEKMSG_MAGIC1 */
618 unsigned long magic2; /* SAVEKMSG_MAGIC2 */
619 unsigned long magicptr; /* address of magic1 */
620 unsigned long size;
621 char data[];
622 };
623
624 static struct savekmsg *savekmsg;
625
amiga_mem_console_write(struct console * co,const char * s,unsigned int count)626 static void amiga_mem_console_write(struct console *co, const char *s,
627 unsigned int count)
628 {
629 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
630 memcpy(savekmsg->data + savekmsg->size, s, count);
631 savekmsg->size += count;
632 }
633 }
634
amiga_savekmsg_setup(char * arg)635 static int __init amiga_savekmsg_setup(char *arg)
636 {
637 bool registered;
638
639 if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
640 return 0;
641
642 if (amiga_chip_size < SAVEKMSG_MAXMEM) {
643 pr_err("Not enough chipram for debugging\n");
644 return -ENOMEM;
645 }
646
647 /* Just steal the block, the chipram allocator isn't functional yet */
648 amiga_chip_size -= SAVEKMSG_MAXMEM;
649 savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
650 savekmsg->magic1 = SAVEKMSG_MAGIC1;
651 savekmsg->magic2 = SAVEKMSG_MAGIC2;
652 savekmsg->magicptr = ZTWO_PADDR(savekmsg);
653 savekmsg->size = 0;
654
655 registered = !!amiga_console_driver.write;
656 amiga_console_driver.write = amiga_mem_console_write;
657 if (!registered)
658 register_console(&amiga_console_driver);
659 return 0;
660 }
661
662 early_param("debug", amiga_savekmsg_setup);
663
amiga_serial_putc(char c)664 static void amiga_serial_putc(char c)
665 {
666 amiga_custom.serdat = (unsigned char)c | 0x100;
667 while (!(amiga_custom.serdatr & 0x2000))
668 ;
669 }
670
amiga_serial_console_write(struct console * co,const char * s,unsigned int count)671 static void amiga_serial_console_write(struct console *co, const char *s,
672 unsigned int count)
673 {
674 while (count--) {
675 if (*s == '\n')
676 amiga_serial_putc('\r');
677 amiga_serial_putc(*s++);
678 }
679 }
680
681 #if 0
682 void amiga_serial_puts(const char *s)
683 {
684 amiga_serial_console_write(NULL, s, strlen(s));
685 }
686
687 int amiga_serial_console_wait_key(struct console *co)
688 {
689 int ch;
690
691 while (!(amiga_custom.intreqr & IF_RBF))
692 barrier();
693 ch = amiga_custom.serdatr & 0xff;
694 /* clear the interrupt, so that another character can be read */
695 amiga_custom.intreq = IF_RBF;
696 return ch;
697 }
698
699 void amiga_serial_gets(struct console *co, char *s, int len)
700 {
701 int ch, cnt = 0;
702
703 while (1) {
704 ch = amiga_serial_console_wait_key(co);
705
706 /* Check for backspace. */
707 if (ch == 8 || ch == 127) {
708 if (cnt == 0) {
709 amiga_serial_putc('\007');
710 continue;
711 }
712 cnt--;
713 amiga_serial_puts("\010 \010");
714 continue;
715 }
716
717 /* Check for enter. */
718 if (ch == 10 || ch == 13)
719 break;
720
721 /* See if line is too long. */
722 if (cnt >= len + 1) {
723 amiga_serial_putc(7);
724 cnt--;
725 continue;
726 }
727
728 /* Store and echo character. */
729 s[cnt++] = ch;
730 amiga_serial_putc(ch);
731 }
732 /* Print enter. */
733 amiga_serial_puts("\r\n");
734 s[cnt] = 0;
735 }
736 #endif
737
amiga_debug_setup(char * arg)738 static int __init amiga_debug_setup(char *arg)
739 {
740 bool registered;
741
742 if (!MACH_IS_AMIGA || strcmp(arg, "ser"))
743 return 0;
744
745 /* no initialization required (?) */
746 registered = !!amiga_console_driver.write;
747 amiga_console_driver.write = amiga_serial_console_write;
748 if (!registered)
749 register_console(&amiga_console_driver);
750 return 0;
751 }
752
753 early_param("debug", amiga_debug_setup);
754
755 #ifdef CONFIG_HEARTBEAT
amiga_heartbeat(int on)756 static void amiga_heartbeat(int on)
757 {
758 if (on)
759 ciaa.pra &= ~2;
760 else
761 ciaa.pra |= 2;
762 }
763 #endif
764
765 /*
766 * Amiga specific parts of /proc
767 */
768
amiga_get_model(char * model)769 static void amiga_get_model(char *model)
770 {
771 strcpy(model, amiga_model_name);
772 }
773
774
amiga_get_hardware_list(struct seq_file * m)775 static void amiga_get_hardware_list(struct seq_file *m)
776 {
777 if (AMIGAHW_PRESENT(CHIP_RAM))
778 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
779 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
780 amiga_psfreq, amiga_eclock);
781 if (AMIGAHW_PRESENT(AMI_VIDEO)) {
782 char *type;
783 switch (amiga_chipset) {
784 case CS_OCS:
785 type = "OCS";
786 break;
787 case CS_ECS:
788 type = "ECS";
789 break;
790 case CS_AGA:
791 type = "AGA";
792 break;
793 default:
794 type = "Old or Unknown";
795 break;
796 }
797 seq_printf(m, "Graphics:\t%s\n", type);
798 }
799
800 #define AMIGAHW_ANNOUNCE(name, str) \
801 if (AMIGAHW_PRESENT(name)) \
802 seq_printf (m, "\t%s\n", str)
803
804 seq_puts(m, "Detected hardware:\n");
805 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
806 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
807 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
808 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
809 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
810 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
811 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
812 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
813 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
814 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
815 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
816 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
817 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
818 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
819 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
820 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
821 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
822 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
823 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
824 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
825 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
826 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
827 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
828 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
829 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
830 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
831 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
832 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
833 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
834 #ifdef CONFIG_ZORRO
835 if (AMIGAHW_PRESENT(ZORRO))
836 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
837 "Device%s\n",
838 AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
839 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
840 #endif /* CONFIG_ZORRO */
841
842 #undef AMIGAHW_ANNOUNCE
843 }
844
845 /*
846 * The Amiga keyboard driver needs key_maps, but we cannot export it in
847 * drivers/char/defkeymap.c, as it is autogenerated
848 */
849 #ifdef CONFIG_HW_CONSOLE
850 EXPORT_SYMBOL_GPL(key_maps);
851 #endif
852