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airport: remove useless return in a function returning void
[linux/fpc-iii.git] / arch / m68k / amiga / config.c
blobab9862c3a136f4bc49f744b04bd2feae51912e83
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/system.h>
33 #include <asm/pgtable.h>
34 #include <asm/amigahw.h>
35 #include <asm/amigaints.h>
36 #include <asm/irq.h>
37 #include <asm/rtc.h>
38 #include <asm/machdep.h>
39 #include <asm/io.h>
40
41 static unsigned long amiga_model;
42
43 unsigned long amiga_eclock;
44 EXPORT_SYMBOL(amiga_eclock);
45
46 unsigned long amiga_colorclock;
47 EXPORT_SYMBOL(amiga_colorclock);
48
49 unsigned long amiga_chipset;
50 EXPORT_SYMBOL(amiga_chipset);
51
52 unsigned char amiga_vblank;
53 EXPORT_SYMBOL(amiga_vblank);
54
55 static unsigned char amiga_psfreq;
56
57 struct amiga_hw_present amiga_hw_present;
58 EXPORT_SYMBOL(amiga_hw_present);
59
60 static char s_a500[] __initdata = "A500";
61 static char s_a500p[] __initdata = "A500+";
62 static char s_a600[] __initdata = "A600";
63 static char s_a1000[] __initdata = "A1000";
64 static char s_a1200[] __initdata = "A1200";
65 static char s_a2000[] __initdata = "A2000";
66 static char s_a2500[] __initdata = "A2500";
67 static char s_a3000[] __initdata = "A3000";
68 static char s_a3000t[] __initdata = "A3000T";
69 static char s_a3000p[] __initdata = "A3000+";
70 static char s_a4000[] __initdata = "A4000";
71 static char s_a4000t[] __initdata = "A4000T";
72 static char s_cdtv[] __initdata = "CDTV";
73 static char s_cd32[] __initdata = "CD32";
74 static char s_draco[] __initdata = "Draco";
75 static char *amiga_models[] __initdata = {
76 [AMI_500-AMI_500] = s_a500,
77 [AMI_500PLUS-AMI_500] = s_a500p,
78 [AMI_600-AMI_500] = s_a600,
79 [AMI_1000-AMI_500] = s_a1000,
80 [AMI_1200-AMI_500] = s_a1200,
81 [AMI_2000-AMI_500] = s_a2000,
82 [AMI_2500-AMI_500] = s_a2500,
83 [AMI_3000-AMI_500] = s_a3000,
84 [AMI_3000T-AMI_500] = s_a3000t,
85 [AMI_3000PLUS-AMI_500] = s_a3000p,
86 [AMI_4000-AMI_500] = s_a4000,
87 [AMI_4000T-AMI_500] = s_a4000t,
88 [AMI_CDTV-AMI_500] = s_cdtv,
89 [AMI_CD32-AMI_500] = s_cd32,
90 [AMI_DRACO-AMI_500] = s_draco,
91 };
92
93 static char amiga_model_name[13] = "Amiga ";
94
95 static void amiga_sched_init(irq_handler_t handler);
96 static void amiga_get_model(char *model);
97 static void amiga_get_hardware_list(struct seq_file *m);
98 /* amiga specific timer functions */
99 static unsigned long amiga_gettimeoffset(void);
100 static int a3000_hwclk(int, struct rtc_time *);
101 static int a2000_hwclk(int, struct rtc_time *);
102 static int amiga_set_clock_mmss(unsigned long);
103 static unsigned int amiga_get_ss(void);
104 extern void amiga_mksound(unsigned int count, unsigned int ticks);
105 static void amiga_reset(void);
106 extern void amiga_init_sound(void);
107 static void amiga_mem_console_write(struct console *co, const char *b,
108 unsigned int count);
109 #ifdef CONFIG_HEARTBEAT
110 static void amiga_heartbeat(int on);
111 #endif
112
113 static struct console amiga_console_driver = {
114 .name = "debug",
115 .flags = CON_PRINTBUFFER,
116 .index = -1,
117 };
118
119
120 /*
121 * Motherboard Resources present in all Amiga models
122 */
123
124 static struct {
125 struct resource _ciab, _ciaa, _custom, _kickstart;
126 } mb_resources = {
127 ._ciab = {
128 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff
129 },
130 ._ciaa = {
131 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff
132 },
133 ._custom = {
134 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff
135 },
136 ._kickstart = {
137 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff
138 }
139 };
140
141 static struct resource rtc_resource = {
142 .start = 0x00dc0000, .end = 0x00dcffff
143 };
144
145 static struct resource ram_resource[NUM_MEMINFO];
146
147
148 /*
149 * Parse an Amiga-specific record in the bootinfo
150 */
151
152 int amiga_parse_bootinfo(const struct bi_record *record)
153 {
154 int unknown = 0;
155 const unsigned long *data = record->data;
156
157 switch (record->tag) {
158 case BI_AMIGA_MODEL:
159 amiga_model = *data;
160 break;
161
162 case BI_AMIGA_ECLOCK:
163 amiga_eclock = *data;
164 break;
165
166 case BI_AMIGA_CHIPSET:
167 amiga_chipset = *data;
168 break;
169
170 case BI_AMIGA_CHIP_SIZE:
171 amiga_chip_size = *(const int *)data;
172 break;
173
174 case BI_AMIGA_VBLANK:
175 amiga_vblank = *(const unsigned char *)data;
176 break;
177
178 case BI_AMIGA_PSFREQ:
179 amiga_psfreq = *(const unsigned char *)data;
180 break;
181
182 case BI_AMIGA_AUTOCON:
183 #ifdef CONFIG_ZORRO
184 if (zorro_num_autocon < ZORRO_NUM_AUTO) {
185 const struct ConfigDev *cd = (struct ConfigDev *)data;
186 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
187 dev->rom = cd->cd_Rom;
188 dev->slotaddr = cd->cd_SlotAddr;
189 dev->slotsize = cd->cd_SlotSize;
190 dev->resource.start = (unsigned long)cd->cd_BoardAddr;
191 dev->resource.end = dev->resource.start + cd->cd_BoardSize - 1;
192 } else
193 printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
194 #endif /* CONFIG_ZORRO */
195 break;
196
197 case BI_AMIGA_SERPER:
198 /* serial port period: ignored here */
199 break;
200
201 default:
202 unknown = 1;
203 }
204 return unknown;
205 }
206
207 /*
208 * Identify builtin hardware
209 */
210
211 static void __init amiga_identify(void)
212 {
213 /* Fill in some default values, if necessary */
214 if (amiga_eclock == 0)
215 amiga_eclock = 709379;
216
217 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
218
219 printk("Amiga hardware found: ");
220 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
221 printk("[%s] ", amiga_models[amiga_model-AMI_500]);
222 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
223 }
224
225 switch (amiga_model) {
226 case AMI_UNKNOWN:
227 goto Generic;
228
229 case AMI_600:
230 case AMI_1200:
231 AMIGAHW_SET(A1200_IDE);
232 AMIGAHW_SET(PCMCIA);
233 case AMI_500:
234 case AMI_500PLUS:
235 case AMI_1000:
236 case AMI_2000:
237 case AMI_2500:
238 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
239 goto Generic;
240
241 case AMI_3000:
242 case AMI_3000T:
243 AMIGAHW_SET(AMBER_FF);
244 AMIGAHW_SET(MAGIC_REKICK);
245 /* fall through */
246 case AMI_3000PLUS:
247 AMIGAHW_SET(A3000_SCSI);
248 AMIGAHW_SET(A3000_CLK);
249 AMIGAHW_SET(ZORRO3);
250 goto Generic;
251
252 case AMI_4000T:
253 AMIGAHW_SET(A4000_SCSI);
254 /* fall through */
255 case AMI_4000:
256 AMIGAHW_SET(A4000_IDE);
257 AMIGAHW_SET(A3000_CLK);
258 AMIGAHW_SET(ZORRO3);
259 goto Generic;
260
261 case AMI_CDTV:
262 case AMI_CD32:
263 AMIGAHW_SET(CD_ROM);
264 AMIGAHW_SET(A2000_CLK); /* Is this correct? */
265 goto Generic;
266
267 Generic:
268 AMIGAHW_SET(AMI_VIDEO);
269 AMIGAHW_SET(AMI_BLITTER);
270 AMIGAHW_SET(AMI_AUDIO);
271 AMIGAHW_SET(AMI_FLOPPY);
272 AMIGAHW_SET(AMI_KEYBOARD);
273 AMIGAHW_SET(AMI_MOUSE);
274 AMIGAHW_SET(AMI_SERIAL);
275 AMIGAHW_SET(AMI_PARALLEL);
276 AMIGAHW_SET(CHIP_RAM);
277 AMIGAHW_SET(PAULA);
278
279 switch (amiga_chipset) {
280 case CS_OCS:
281 case CS_ECS:
282 case CS_AGA:
283 switch (amiga_custom.deniseid & 0xf) {
284 case 0x0c:
285 AMIGAHW_SET(DENISE_HR);
286 break;
287 case 0x08:
288 AMIGAHW_SET(LISA);
289 break;
290 }
291 break;
292 default:
293 AMIGAHW_SET(DENISE);
294 break;
295 }
296 switch ((amiga_custom.vposr>>8) & 0x7f) {
297 case 0x00:
298 AMIGAHW_SET(AGNUS_PAL);
299 break;
300 case 0x10:
301 AMIGAHW_SET(AGNUS_NTSC);
302 break;
303 case 0x20:
304 case 0x21:
305 AMIGAHW_SET(AGNUS_HR_PAL);
306 break;
307 case 0x30:
308 case 0x31:
309 AMIGAHW_SET(AGNUS_HR_NTSC);
310 break;
311 case 0x22:
312 case 0x23:
313 AMIGAHW_SET(ALICE_PAL);
314 break;
315 case 0x32:
316 case 0x33:
317 AMIGAHW_SET(ALICE_NTSC);
318 break;
319 }
320 AMIGAHW_SET(ZORRO);
321 break;
322
323 case AMI_DRACO:
324 panic("No support for Draco yet");
325
326 default:
327 panic("Unknown Amiga Model");
328 }
329
330 #define AMIGAHW_ANNOUNCE(name, str) \
331 if (AMIGAHW_PRESENT(name)) \
332 printk(str)
333
334 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
335 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
336 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
337 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
338 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
339 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
340 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
341 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
342 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
343 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
344 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
345 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
346 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
347 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
348 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
349 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
350 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
351 AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
352 AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
353 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
354 AMIGAHW_ANNOUNCE(LISA, "LISA ");
355 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
356 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
357 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
358 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
359 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
360 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
361 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
362 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
363 if (AMIGAHW_PRESENT(ZORRO))
364 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
365 printk("\n");
366
367 #undef AMIGAHW_ANNOUNCE
368 }
369
370 /*
371 * Setup the Amiga configuration info
372 */
373
374 void __init config_amiga(void)
375 {
376 int i;
377
378 amiga_identify();
379
380 /* Yuk, we don't have PCI memory */
381 iomem_resource.name = "Memory";
382 for (i = 0; i < 4; i++)
383 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
384
385 mach_sched_init = amiga_sched_init;
386 mach_init_IRQ = amiga_init_IRQ;
387 mach_get_model = amiga_get_model;
388 mach_get_hardware_list = amiga_get_hardware_list;
389 mach_gettimeoffset = amiga_gettimeoffset;
390 if (AMIGAHW_PRESENT(A3000_CLK)) {
391 mach_hwclk = a3000_hwclk;
392 rtc_resource.name = "A3000 RTC";
393 request_resource(&iomem_resource, &rtc_resource);
394 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
395 mach_hwclk = a2000_hwclk;
396 rtc_resource.name = "A2000 RTC";
397 request_resource(&iomem_resource, &rtc_resource);
398 }
399
400 /*
401 * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI
402 * code will not be able to allocate any mem for transfers, unless we are
403 * dealing with a Z2 mem only system. /Jes
404 */
405 mach_max_dma_address = 0xffffffff;
406
407 mach_set_clock_mmss = amiga_set_clock_mmss;
408 mach_get_ss = amiga_get_ss;
409 mach_reset = amiga_reset;
410 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
411 mach_beep = amiga_mksound;
412 #endif
413
414 #ifdef CONFIG_HEARTBEAT
415 mach_heartbeat = amiga_heartbeat;
416 #endif
417
418 /* Fill in the clock value (based on the 700 kHz E-Clock) */
419 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
420
421 /* clear all DMA bits */
422 amiga_custom.dmacon = DMAF_ALL;
423 /* ensure that the DMA master bit is set */
424 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
425
426 /* don't use Z2 RAM as system memory on Z3 capable machines */
427 if (AMIGAHW_PRESENT(ZORRO3)) {
428 int i, j;
429 u32 disabled_z2mem = 0;
430
431 for (i = 0; i < m68k_num_memory; i++) {
432 if (m68k_memory[i].addr < 16*1024*1024) {
433 if (i == 0) {
434 /* don't cut off the branch we're sitting on */
435 printk("Warning: kernel runs in Zorro II memory\n");
436 continue;
437 }
438 disabled_z2mem += m68k_memory[i].size;
439 m68k_num_memory--;
440 for (j = i; j < m68k_num_memory; j++)
441 m68k_memory[j] = m68k_memory[j+1];
442 i--;
443 }
444 }
445 if (disabled_z2mem)
446 printk("%dK of Zorro II memory will not be used as system memory\n",
447 disabled_z2mem>>10);
448 }
449
450 /* request all RAM */
451 for (i = 0; i < m68k_num_memory; i++) {
452 ram_resource[i].name =
453 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
454 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
455 "16-bit Slow RAM";
456 ram_resource[i].start = m68k_memory[i].addr;
457 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
458 request_resource(&iomem_resource, &ram_resource[i]);
459 }
460
461 /* initialize chipram allocator */
462 amiga_chip_init();
463
464 /* our beloved beeper */
465 if (AMIGAHW_PRESENT(AMI_AUDIO))
466 amiga_init_sound();
467
468 /*
469 * if it is an A3000, set the magic bit that forces
470 * a hard rekick
471 */
472 if (AMIGAHW_PRESENT(MAGIC_REKICK))
473 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
474 }
475
476 static unsigned short jiffy_ticks;
477
478 static void __init amiga_sched_init(irq_handler_t timer_routine)
479 {
480 static struct resource sched_res = {
481 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
482 };
483 jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
484
485 if (request_resource(&mb_resources._ciab, &sched_res))
486 printk("Cannot allocate ciab.ta{lo,hi}\n");
487 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
488 ciab.talo = jiffy_ticks % 256;
489 ciab.tahi = jiffy_ticks / 256;
490
491 /* install interrupt service routine for CIAB Timer A
492 *
493 * Please don't change this to use ciaa, as it interferes with the
494 * SCSI code. We'll have to take a look at this later
495 */
496 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
497 /* start timer */
498 ciab.cra |= 0x11;
499 }
500
501 #define TICK_SIZE 10000
502
503 /* This is always executed with interrupts disabled. */
504 static unsigned long amiga_gettimeoffset(void)
505 {
506 unsigned short hi, lo, hi2;
507 unsigned long ticks, offset = 0;
508
509 /* read CIA B timer A current value */
510 hi = ciab.tahi;
511 lo = ciab.talo;
512 hi2 = ciab.tahi;
513
514 if (hi != hi2) {
515 lo = ciab.talo;
516 hi = hi2;
517 }
518
519 ticks = hi << 8 | lo;
520
521 if (ticks > jiffy_ticks / 2)
522 /* check for pending interrupt */
523 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
524 offset = 10000;
525
526 ticks = jiffy_ticks - ticks;
527 ticks = (10000 * ticks) / jiffy_ticks;
528
529 return ticks + offset;
530 }
531
532 static int a3000_hwclk(int op, struct rtc_time *t)
533 {
534 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
535
536 if (!op) { /* read */
537 t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2;
538 t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2;
539 t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2;
540 t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2;
541 t->tm_wday = tod_3000.weekday;
542 t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1;
543 t->tm_year = tod_3000.year1 * 10 + tod_3000.year2;
544 if (t->tm_year <= 69)
545 t->tm_year += 100;
546 } else {
547 tod_3000.second1 = t->tm_sec / 10;
548 tod_3000.second2 = t->tm_sec % 10;
549 tod_3000.minute1 = t->tm_min / 10;
550 tod_3000.minute2 = t->tm_min % 10;
551 tod_3000.hour1 = t->tm_hour / 10;
552 tod_3000.hour2 = t->tm_hour % 10;
553 tod_3000.day1 = t->tm_mday / 10;
554 tod_3000.day2 = t->tm_mday % 10;
555 if (t->tm_wday != -1)
556 tod_3000.weekday = t->tm_wday;
557 tod_3000.month1 = (t->tm_mon + 1) / 10;
558 tod_3000.month2 = (t->tm_mon + 1) % 10;
559 if (t->tm_year >= 100)
560 t->tm_year -= 100;
561 tod_3000.year1 = t->tm_year / 10;
562 tod_3000.year2 = t->tm_year % 10;
563 }
564
565 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
566
567 return 0;
568 }
569
570 static int a2000_hwclk(int op, struct rtc_time *t)
571 {
572 int cnt = 5;
573
574 tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD;
575
576 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
577 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
578 udelay(70);
579 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
580 }
581
582 if (!cnt)
583 printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n",
584 tod_2000.cntrl1);
585
586 if (!op) { /* read */
587 t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2;
588 t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2;
589 t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2;
590 t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2;
591 t->tm_wday = tod_2000.weekday;
592 t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1;
593 t->tm_year = tod_2000.year1 * 10 + tod_2000.year2;
594 if (t->tm_year <= 69)
595 t->tm_year += 100;
596
597 if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)) {
598 if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12)
599 t->tm_hour = 0;
600 else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12)
601 t->tm_hour += 12;
602 }
603 } else {
604 tod_2000.second1 = t->tm_sec / 10;
605 tod_2000.second2 = t->tm_sec % 10;
606 tod_2000.minute1 = t->tm_min / 10;
607 tod_2000.minute2 = t->tm_min % 10;
608 if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)
609 tod_2000.hour1 = t->tm_hour / 10;
610 else if (t->tm_hour >= 12)
611 tod_2000.hour1 = TOD2000_HOUR1_PM +
612 (t->tm_hour - 12) / 10;
613 else
614 tod_2000.hour1 = t->tm_hour / 10;
615 tod_2000.hour2 = t->tm_hour % 10;
616 tod_2000.day1 = t->tm_mday / 10;
617 tod_2000.day2 = t->tm_mday % 10;
618 if (t->tm_wday != -1)
619 tod_2000.weekday = t->tm_wday;
620 tod_2000.month1 = (t->tm_mon + 1) / 10;
621 tod_2000.month2 = (t->tm_mon + 1) % 10;
622 if (t->tm_year >= 100)
623 t->tm_year -= 100;
624 tod_2000.year1 = t->tm_year / 10;
625 tod_2000.year2 = t->tm_year % 10;
626 }
627
628 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
629
630 return 0;
631 }
632
633 static int amiga_set_clock_mmss(unsigned long nowtime)
634 {
635 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
636
637 if (AMIGAHW_PRESENT(A3000_CLK)) {
638 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
639
640 tod_3000.second1 = real_seconds / 10;
641 tod_3000.second2 = real_seconds % 10;
642 tod_3000.minute1 = real_minutes / 10;
643 tod_3000.minute2 = real_minutes % 10;
644
645 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
646 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
647 int cnt = 5;
648
649 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
650
651 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
652 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
653 udelay(70);
654 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
655 }
656
657 if (!cnt)
658 printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1);
659
660 tod_2000.second1 = real_seconds / 10;
661 tod_2000.second2 = real_seconds % 10;
662 tod_2000.minute1 = real_minutes / 10;
663 tod_2000.minute2 = real_minutes % 10;
664
665 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
666 }
667
668 return 0;
669 }
670
671 static unsigned int amiga_get_ss(void)
672 {
673 unsigned int s;
674
675 if (AMIGAHW_PRESENT(A3000_CLK)) {
676 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
677 s = tod_3000.second1 * 10 + tod_3000.second2;
678 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
679 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
680 s = tod_2000.second1 * 10 + tod_2000.second2;
681 }
682 return s;
683 }
684
685 static NORET_TYPE void amiga_reset(void)
686 ATTRIB_NORET;
687
688 static void amiga_reset(void)
689 {
690 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
691 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
692
693 local_irq_disable();
694 if (CPU_IS_040_OR_060)
695 /* Setup transparent translation registers for mapping
696 * of 16 MB kernel segment before disabling translation
697 */
698 asm volatile ("\n"
699 " move.l %0,%%d0\n"
700 " and.l #0xff000000,%%d0\n"
701 " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */
702 " .chip 68040\n"
703 " movec %%d0,%%itt0\n"
704 " movec %%d0,%%dtt0\n"
705 " .chip 68k\n"
706 " jmp %0@\n"
707 : /* no outputs */
708 : "a" (jmp_addr040)
709 : "d0");
710 else
711 /* for 680[23]0, just disable translation and jump to the physical
712 * address of the label
713 */
714 asm volatile ("\n"
715 " pmove %%tc,%@\n"
716 " bclr #7,%@\n"
717 " pmove %@,%%tc\n"
718 " jmp %0@\n"
719 : /* no outputs */
720 : "a" (jmp_addr));
721 jmp_addr_label040:
722 /* disable translation on '040 now */
723 asm volatile ("\n"
724 " moveq #0,%%d0\n"
725 " .chip 68040\n"
726 " movec %%d0,%%tc\n" /* disable MMU */
727 " .chip 68k\n"
728 : /* no outputs */
729 : /* no inputs */
730 : "d0");
731
732 jmp_addr_label:
733 /* pickup reset address from AmigaOS ROM, reset devices and jump
734 * to reset address
735 */
736 asm volatile ("\n"
737 " move.w #0x2700,%sr\n"
738 " lea 0x01000000,%a0\n"
739 " sub.l %a0@(-0x14),%a0\n"
740 " move.l %a0@(4),%a0\n"
741 " subq.l #2,%a0\n"
742 " jra 1f\n"
743 /* align on a longword boundary */
744 " " __ALIGN_STR "\n"
745 "1:\n"
746 " reset\n"
747 " jmp %a0@");
748
749 for (;;)
750 ;
751 }
752
753
754 /*
755 * Debugging
756 */
757
758 #define SAVEKMSG_MAXMEM 128*1024
759
760 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
761 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
762
763 struct savekmsg {
764 unsigned long magic1; /* SAVEKMSG_MAGIC1 */
765 unsigned long magic2; /* SAVEKMSG_MAGIC2 */
766 unsigned long magicptr; /* address of magic1 */
767 unsigned long size;
768 char data[0];
769 };
770
771 static struct savekmsg *savekmsg;
772
773 static void amiga_mem_console_write(struct console *co, const char *s,
774 unsigned int count)
775 {
776 if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
777 memcpy(savekmsg->data + savekmsg->size, s, count);
778 savekmsg->size += count;
779 }
780 }
781
782 static int __init amiga_savekmsg_setup(char *arg)
783 {
784 static struct resource debug_res = { .name = "Debug" };
785
786 if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
787 goto done;
788
789 if (!AMIGAHW_PRESENT(CHIP_RAM)) {
790 printk("Warning: no chipram present for debugging\n");
791 goto done;
792 }
793
794 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);
795 savekmsg->magic1 = SAVEKMSG_MAGIC1;
796 savekmsg->magic2 = SAVEKMSG_MAGIC2;
797 savekmsg->magicptr = ZTWO_PADDR(savekmsg);
798 savekmsg->size = 0;
799
800 amiga_console_driver.write = amiga_mem_console_write;
801 register_console(&amiga_console_driver);
802
803 done:
804 return 0;
805 }
806
807 early_param("debug", amiga_savekmsg_setup);
808
809 static void amiga_serial_putc(char c)
810 {
811 amiga_custom.serdat = (unsigned char)c | 0x100;
812 while (!(amiga_custom.serdatr & 0x2000))
813 ;
814 }
815
816 static void amiga_serial_console_write(struct console *co, const char *s,
817 unsigned int count)
818 {
819 while (count--) {
820 if (*s == '\n')
821 amiga_serial_putc('\r');
822 amiga_serial_putc(*s++);
823 }
824 }
825
826 #if 0
827 void amiga_serial_puts(const char *s)
828 {
829 amiga_serial_console_write(NULL, s, strlen(s));
830 }
831
832 int amiga_serial_console_wait_key(struct console *co)
833 {
834 int ch;
835
836 while (!(amiga_custom.intreqr & IF_RBF))
837 barrier();
838 ch = amiga_custom.serdatr & 0xff;
839 /* clear the interrupt, so that another character can be read */
840 amiga_custom.intreq = IF_RBF;
841 return ch;
842 }
843
844 void amiga_serial_gets(struct console *co, char *s, int len)
845 {
846 int ch, cnt = 0;
847
848 while (1) {
849 ch = amiga_serial_console_wait_key(co);
850
851 /* Check for backspace. */
852 if (ch == 8 || ch == 127) {
853 if (cnt == 0) {
854 amiga_serial_putc('\007');
855 continue;
856 }
857 cnt--;
858 amiga_serial_puts("\010 \010");
859 continue;
860 }
861
862 /* Check for enter. */
863 if (ch == 10 || ch == 13)
864 break;
865
866 /* See if line is too long. */
867 if (cnt >= len + 1) {
868 amiga_serial_putc(7);
869 cnt--;
870 continue;
871 }
872
873 /* Store and echo character. */
874 s[cnt++] = ch;
875 amiga_serial_putc(ch);
876 }
877 /* Print enter. */
878 amiga_serial_puts("\r\n");
879 s[cnt] = 0;
880 }
881 #endif
882
883 static int __init amiga_debug_setup(char *arg)
884 {
885 if (MACH_IS_AMIGA && !strcmp(arg, "ser")) {
886 /* no initialization required (?) */
887 amiga_console_driver.write = amiga_serial_console_write;
888 register_console(&amiga_console_driver);
889 }
890 return 0;
891 }
892
893 early_param("debug", amiga_debug_setup);
894
895 #ifdef CONFIG_HEARTBEAT
896 static void amiga_heartbeat(int on)
897 {
898 if (on)
899 ciaa.pra &= ~2;
900 else
901 ciaa.pra |= 2;
902 }
903 #endif
904
905 /*
906 * Amiga specific parts of /proc
907 */
908
909 static void amiga_get_model(char *model)
910 {
911 strcpy(model, amiga_model_name);
912 }
913
914
915 static void amiga_get_hardware_list(struct seq_file *m)
916 {
917 if (AMIGAHW_PRESENT(CHIP_RAM))
918 seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
919 seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
920 amiga_psfreq, amiga_eclock);
921 if (AMIGAHW_PRESENT(AMI_VIDEO)) {
922 char *type;
923 switch (amiga_chipset) {
924 case CS_OCS:
925 type = "OCS";
926 break;
927 case CS_ECS:
928 type = "ECS";
929 break;
930 case CS_AGA:
931 type = "AGA";
932 break;
933 default:
934 type = "Old or Unknown";
935 break;
936 }
937 seq_printf(m, "Graphics:\t%s\n", type);
938 }
939
940 #define AMIGAHW_ANNOUNCE(name, str) \
941 if (AMIGAHW_PRESENT(name)) \
942 seq_printf (m, "\t%s\n", str)
943
944 seq_printf (m, "Detected hardware:\n");
945
946 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
947 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
948 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
949 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
950 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
951 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
952 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
953 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
954 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
955 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
956 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
957 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
958 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
959 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
960 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
961 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
962 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
963 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
964 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
965 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
966 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
967 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
968 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
969 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
970 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
971 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
972 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
973 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
974 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
975 #ifdef CONFIG_ZORRO
976 if (AMIGAHW_PRESENT(ZORRO))
977 seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
978 "Device%s\n",
979 AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
980 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
981 #endif /* CONFIG_ZORRO */
982
983 #undef AMIGAHW_ANNOUNCE
984 }
985
986 /*
987 * The Amiga keyboard driver needs key_maps, but we cannot export it in
988 * drivers/char/defkeymap.c, as it is autogenerated
989 */
990 #ifdef CONFIG_HW_CONSOLE
991 EXPORT_SYMBOL_GPL(key_maps);
992 #endif
Linux with added FPC-III support