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[PATCH] m68k: convert amiga irq code
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / m68k / amiga / config.c
blobb5b8a416a07a1384919b2f60ff78adfee5668117
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/config.h>
16 #include <linux/types.h>
17 #include <linux/kernel.h>
18 #include <linux/mm.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 #ifdef CONFIG_ZORRO
27 #include <linux/zorro.h>
28 #endif
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 unsigned long amiga_model;
42 unsigned long amiga_eclock;
43 unsigned long amiga_masterclock;
44 unsigned long amiga_colorclock;
45 unsigned long amiga_chipset;
46 unsigned char amiga_vblank;
47 unsigned char amiga_psfreq;
48 struct amiga_hw_present amiga_hw_present;
49
50 static char s_a500[] __initdata = "A500";
51 static char s_a500p[] __initdata = "A500+";
52 static char s_a600[] __initdata = "A600";
53 static char s_a1000[] __initdata = "A1000";
54 static char s_a1200[] __initdata = "A1200";
55 static char s_a2000[] __initdata = "A2000";
56 static char s_a2500[] __initdata = "A2500";
57 static char s_a3000[] __initdata = "A3000";
58 static char s_a3000t[] __initdata = "A3000T";
59 static char s_a3000p[] __initdata = "A3000+";
60 static char s_a4000[] __initdata = "A4000";
61 static char s_a4000t[] __initdata = "A4000T";
62 static char s_cdtv[] __initdata = "CDTV";
63 static char s_cd32[] __initdata = "CD32";
64 static char s_draco[] __initdata = "Draco";
65 static char *amiga_models[] __initdata = {
66 [AMI_500-AMI_500] = s_a500,
67 [AMI_500PLUS-AMI_500] = s_a500p,
68 [AMI_600-AMI_500] = s_a600,
69 [AMI_1000-AMI_500] = s_a1000,
70 [AMI_1200-AMI_500] = s_a1200,
71 [AMI_2000-AMI_500] = s_a2000,
72 [AMI_2500-AMI_500] = s_a2500,
73 [AMI_3000-AMI_500] = s_a3000,
74 [AMI_3000T-AMI_500] = s_a3000t,
75 [AMI_3000PLUS-AMI_500] = s_a3000p,
76 [AMI_4000-AMI_500] = s_a4000,
77 [AMI_4000T-AMI_500] = s_a4000t,
78 [AMI_CDTV-AMI_500] = s_cdtv,
79 [AMI_CD32-AMI_500] = s_cd32,
80 [AMI_DRACO-AMI_500] = s_draco,
81 };
82
83 static char amiga_model_name[13] = "Amiga ";
84
85 extern char m68k_debug_device[];
86
87 static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
88 /* amiga specific irq functions */
89 extern void amiga_init_IRQ (void);
90 static void amiga_get_model(char *model);
91 static int amiga_get_hardware_list(char *buffer);
92 /* amiga specific timer functions */
93 static unsigned long amiga_gettimeoffset (void);
94 static int a3000_hwclk (int, struct rtc_time *);
95 static int a2000_hwclk (int, struct rtc_time *);
96 static int amiga_set_clock_mmss (unsigned long);
97 static unsigned int amiga_get_ss (void);
98 extern void amiga_mksound( unsigned int count, unsigned int ticks );
99 static void amiga_reset (void);
100 extern void amiga_init_sound(void);
101 static void amiga_savekmsg_init(void);
102 static void amiga_mem_console_write(struct console *co, const char *b,
103 unsigned int count);
104 void amiga_serial_console_write(struct console *co, const char *s,
105 unsigned int count);
106 static void amiga_debug_init(void);
107 #ifdef CONFIG_HEARTBEAT
108 static void amiga_heartbeat(int on);
109 #endif
110
111 static struct console amiga_console_driver = {
112 .name = "debug",
113 .flags = CON_PRINTBUFFER,
114 .index = -1,
115 };
116
117
118 /*
119 * Motherboard Resources present in all Amiga models
120 */
121
122 static struct {
123 struct resource _ciab, _ciaa, _custom, _kickstart;
124 } mb_resources = {
125 ._ciab = {
126 .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff
127 },
128 ._ciaa = {
129 .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff
130 },
131 ._custom = {
132 .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff
133 },
134 ._kickstart = {
135 .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff
136 }
137 };
138
139 static struct resource rtc_resource = {
140 .start = 0x00dc0000, .end = 0x00dcffff
141 };
142
143 static struct resource ram_resource[NUM_MEMINFO];
144
145
146 /*
147 * Parse an Amiga-specific record in the bootinfo
148 */
149
150 int amiga_parse_bootinfo(const struct bi_record *record)
151 {
152 int unknown = 0;
153 const unsigned long *data = record->data;
154
155 switch (record->tag) {
156 case BI_AMIGA_MODEL:
157 amiga_model = *data;
158 break;
159
160 case BI_AMIGA_ECLOCK:
161 amiga_eclock = *data;
162 break;
163
164 case BI_AMIGA_CHIPSET:
165 amiga_chipset = *data;
166 break;
167
168 case BI_AMIGA_CHIP_SIZE:
169 amiga_chip_size = *(const int *)data;
170 break;
171
172 case BI_AMIGA_VBLANK:
173 amiga_vblank = *(const unsigned char *)data;
174 break;
175
176 case BI_AMIGA_PSFREQ:
177 amiga_psfreq = *(const unsigned char *)data;
178 break;
179
180 case BI_AMIGA_AUTOCON:
181 #ifdef CONFIG_ZORRO
182 if (zorro_num_autocon < ZORRO_NUM_AUTO) {
183 const struct ConfigDev *cd = (struct ConfigDev *)data;
184 struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
185 dev->rom = cd->cd_Rom;
186 dev->slotaddr = cd->cd_SlotAddr;
187 dev->slotsize = cd->cd_SlotSize;
188 dev->resource.start = (unsigned long)cd->cd_BoardAddr;
189 dev->resource.end = dev->resource.start+cd->cd_BoardSize-1;
190 } else
191 printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
192 #endif /* CONFIG_ZORRO */
193 break;
194
195 case BI_AMIGA_SERPER:
196 /* serial port period: ignored here */
197 break;
198
199 default:
200 unknown = 1;
201 }
202 return(unknown);
203 }
204
205 /*
206 * Identify builtin hardware
207 */
208
209 static void __init amiga_identify(void)
210 {
211 /* Fill in some default values, if necessary */
212 if (amiga_eclock == 0)
213 amiga_eclock = 709379;
214
215 memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
216
217 printk("Amiga hardware found: ");
218 if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
219 printk("[%s] ", amiga_models[amiga_model-AMI_500]);
220 strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
221 }
222
223 switch(amiga_model) {
224 case AMI_UNKNOWN:
225 goto Generic;
226
227 case AMI_600:
228 case AMI_1200:
229 AMIGAHW_SET(A1200_IDE);
230 AMIGAHW_SET(PCMCIA);
231 case AMI_500:
232 case AMI_500PLUS:
233 case AMI_1000:
234 case AMI_2000:
235 case AMI_2500:
236 AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
237 goto Generic;
238
239 case AMI_3000:
240 case AMI_3000T:
241 AMIGAHW_SET(AMBER_FF);
242 AMIGAHW_SET(MAGIC_REKICK);
243 /* fall through */
244 case AMI_3000PLUS:
245 AMIGAHW_SET(A3000_SCSI);
246 AMIGAHW_SET(A3000_CLK);
247 AMIGAHW_SET(ZORRO3);
248 goto Generic;
249
250 case AMI_4000T:
251 AMIGAHW_SET(A4000_SCSI);
252 /* fall through */
253 case AMI_4000:
254 AMIGAHW_SET(A4000_IDE);
255 AMIGAHW_SET(A3000_CLK);
256 AMIGAHW_SET(ZORRO3);
257 goto Generic;
258
259 case AMI_CDTV:
260 case AMI_CD32:
261 AMIGAHW_SET(CD_ROM);
262 AMIGAHW_SET(A2000_CLK); /* Is this correct? */
263 goto Generic;
264
265 Generic:
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 }
289 break;
290 default:
291 AMIGAHW_SET(DENISE);
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 break;
320
321 case AMI_DRACO:
322 panic("No support for Draco yet");
323
324 default:
325 panic("Unknown Amiga Model");
326 }
327
328 #define AMIGAHW_ANNOUNCE(name, str) \
329 if (AMIGAHW_PRESENT(name)) \
330 printk(str)
331
332 AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
333 AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
334 AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
335 AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
336 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
337 AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
338 AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
339 AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
340 AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
341 AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
342 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
343 AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
344 AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
345 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
346 AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
347 AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
348 AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
349 AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
350 AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
351 AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
352 AMIGAHW_ANNOUNCE(LISA, "LISA ");
353 AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
354 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
355 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
356 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
357 AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
358 AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
359 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
360 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
361 if (AMIGAHW_PRESENT(ZORRO))
362 printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
363 printk("\n");
364
365 #undef AMIGAHW_ANNOUNCE
366 }
367
368 /*
369 * Setup the Amiga configuration info
370 */
371
372 void __init config_amiga(void)
373 {
374 int i;
375
376 amiga_debug_init();
377 amiga_identify();
378
379 /* Yuk, we don't have PCI memory */
380 iomem_resource.name = "Memory";
381 for (i = 0; i < 4; i++)
382 request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
383
384 mach_sched_init = amiga_sched_init;
385 mach_init_IRQ = amiga_init_IRQ;
386 mach_get_model = amiga_get_model;
387 mach_get_hardware_list = amiga_get_hardware_list;
388 mach_gettimeoffset = amiga_gettimeoffset;
389 if (AMIGAHW_PRESENT(A3000_CLK)){
390 mach_hwclk = a3000_hwclk;
391 rtc_resource.name = "A3000 RTC";
392 request_resource(&iomem_resource, &rtc_resource);
393 }
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 mach_max_dma_address = 0xffffffff; /*
401 * default MAX_DMA=0xffffffff
402 * on all machines. If we don't
403 * do so, the SCSI code will not
404 * be able to allocate any mem
405 * for transfers, unless we are
406 * dealing with a Z2 mem only
407 * system. /Jes
408 */
409
410 mach_set_clock_mmss = amiga_set_clock_mmss;
411 mach_get_ss = amiga_get_ss;
412 mach_reset = amiga_reset;
413 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
414 mach_beep = amiga_mksound;
415 #endif
416
417 #ifdef CONFIG_HEARTBEAT
418 mach_heartbeat = amiga_heartbeat;
419 #endif
420
421 /* Fill in the clock values (based on the 700 kHz E-Clock) */
422 amiga_masterclock = 40*amiga_eclock; /* 28 MHz */
423 amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
424
425 /* clear all DMA bits */
426 amiga_custom.dmacon = DMAF_ALL;
427 /* ensure that the DMA master bit is set */
428 amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
429
430 /* don't use Z2 RAM as system memory on Z3 capable machines */
431 if (AMIGAHW_PRESENT(ZORRO3)) {
432 int i, j;
433 u32 disabled_z2mem = 0;
434 for (i = 0; i < m68k_num_memory; i++)
435 if (m68k_memory[i].addr < 16*1024*1024) {
436 if (i == 0) {
437 /* don't cut off the branch we're sitting on */
438 printk("Warning: kernel runs in Zorro II memory\n");
439 continue;
440 }
441 disabled_z2mem += m68k_memory[i].size;
442 m68k_num_memory--;
443 for (j = i; j < m68k_num_memory; j++)
444 m68k_memory[j] = m68k_memory[j+1];
445 i--;
446 }
447 if (disabled_z2mem)
448 printk("%dK of Zorro II memory will not be used as system memory\n",
449 disabled_z2mem>>10);
450 }
451
452 /* request all RAM */
453 for (i = 0; i < m68k_num_memory; i++) {
454 ram_resource[i].name =
455 (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
456 (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
457 "16-bit Slow RAM";
458 ram_resource[i].start = m68k_memory[i].addr;
459 ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
460 request_resource(&iomem_resource, &ram_resource[i]);
461 }
462
463 /* initialize chipram allocator */
464 amiga_chip_init ();
465
466 /* debugging using chipram */
467 if (!strcmp( m68k_debug_device, "mem" )){
468 if (!AMIGAHW_PRESENT(CHIP_RAM))
469 printk("Warning: no chipram present for debugging\n");
470 else {
471 amiga_savekmsg_init();
472 amiga_console_driver.write = amiga_mem_console_write;
473 register_console(&amiga_console_driver);
474 }
475 }
476
477 /* our beloved beeper */
478 if (AMIGAHW_PRESENT(AMI_AUDIO))
479 amiga_init_sound();
480
481 /*
482 * if it is an A3000, set the magic bit that forces
483 * a hard rekick
484 */
485 if (AMIGAHW_PRESENT(MAGIC_REKICK))
486 *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
487 }
488
489 static unsigned short jiffy_ticks;
490
491 static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *,
492 struct pt_regs *))
493 {
494 static struct resource sched_res = {
495 .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
496 };
497 jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
498
499 if (request_resource(&mb_resources._ciab, &sched_res))
500 printk("Cannot allocate ciab.ta{lo,hi}\n");
501 ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
502 ciab.talo = jiffy_ticks % 256;
503 ciab.tahi = jiffy_ticks / 256;
504
505 /* install interrupt service routine for CIAB Timer A
506 *
507 * Please don't change this to use ciaa, as it interferes with the
508 * SCSI code. We'll have to take a look at this later
509 */
510 request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
511 /* start timer */
512 ciab.cra |= 0x11;
513 }
514
515 #define TICK_SIZE 10000
516
517 /* This is always executed with interrupts disabled. */
518 static unsigned long amiga_gettimeoffset (void)
519 {
520 unsigned short hi, lo, hi2;
521 unsigned long ticks, offset = 0;
522
523 /* read CIA B timer A current value */
524 hi = ciab.tahi;
525 lo = ciab.talo;
526 hi2 = ciab.tahi;
527
528 if (hi != hi2) {
529 lo = ciab.talo;
530 hi = hi2;
531 }
532
533 ticks = hi << 8 | lo;
534
535 if (ticks > jiffy_ticks / 2)
536 /* check for pending interrupt */
537 if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
538 offset = 10000;
539
540 ticks = jiffy_ticks - ticks;
541 ticks = (10000 * ticks) / jiffy_ticks;
542
543 return ticks + offset;
544 }
545
546 static int a3000_hwclk(int op, struct rtc_time *t)
547 {
548 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
549
550 if (!op) { /* read */
551 t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2;
552 t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2;
553 t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2;
554 t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2;
555 t->tm_wday = tod_3000.weekday;
556 t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1;
557 t->tm_year = tod_3000.year1 * 10 + tod_3000.year2;
558 if (t->tm_year <= 69)
559 t->tm_year += 100;
560 } else {
561 tod_3000.second1 = t->tm_sec / 10;
562 tod_3000.second2 = t->tm_sec % 10;
563 tod_3000.minute1 = t->tm_min / 10;
564 tod_3000.minute2 = t->tm_min % 10;
565 tod_3000.hour1 = t->tm_hour / 10;
566 tod_3000.hour2 = t->tm_hour % 10;
567 tod_3000.day1 = t->tm_mday / 10;
568 tod_3000.day2 = t->tm_mday % 10;
569 if (t->tm_wday != -1)
570 tod_3000.weekday = t->tm_wday;
571 tod_3000.month1 = (t->tm_mon + 1) / 10;
572 tod_3000.month2 = (t->tm_mon + 1) % 10;
573 if (t->tm_year >= 100)
574 t->tm_year -= 100;
575 tod_3000.year1 = t->tm_year / 10;
576 tod_3000.year2 = t->tm_year % 10;
577 }
578
579 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
580
581 return 0;
582 }
583
584 static int a2000_hwclk(int op, struct rtc_time *t)
585 {
586 int cnt = 5;
587
588 tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD;
589
590 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--)
591 {
592 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
593 udelay(70);
594 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
595 }
596
597 if (!cnt)
598 printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1);
599
600 if (!op) { /* read */
601 t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2;
602 t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2;
603 t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2;
604 t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2;
605 t->tm_wday = tod_2000.weekday;
606 t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1;
607 t->tm_year = tod_2000.year1 * 10 + tod_2000.year2;
608 if (t->tm_year <= 69)
609 t->tm_year += 100;
610
611 if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){
612 if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12)
613 t->tm_hour = 0;
614 else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12)
615 t->tm_hour += 12;
616 }
617 } else {
618 tod_2000.second1 = t->tm_sec / 10;
619 tod_2000.second2 = t->tm_sec % 10;
620 tod_2000.minute1 = t->tm_min / 10;
621 tod_2000.minute2 = t->tm_min % 10;
622 if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)
623 tod_2000.hour1 = t->tm_hour / 10;
624 else if (t->tm_hour >= 12)
625 tod_2000.hour1 = TOD2000_HOUR1_PM +
626 (t->tm_hour - 12) / 10;
627 else
628 tod_2000.hour1 = t->tm_hour / 10;
629 tod_2000.hour2 = t->tm_hour % 10;
630 tod_2000.day1 = t->tm_mday / 10;
631 tod_2000.day2 = t->tm_mday % 10;
632 if (t->tm_wday != -1)
633 tod_2000.weekday = t->tm_wday;
634 tod_2000.month1 = (t->tm_mon + 1) / 10;
635 tod_2000.month2 = (t->tm_mon + 1) % 10;
636 if (t->tm_year >= 100)
637 t->tm_year -= 100;
638 tod_2000.year1 = t->tm_year / 10;
639 tod_2000.year2 = t->tm_year % 10;
640 }
641
642 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
643
644 return 0;
645 }
646
647 static int amiga_set_clock_mmss (unsigned long nowtime)
648 {
649 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
650
651 if (AMIGAHW_PRESENT(A3000_CLK)) {
652 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
653
654 tod_3000.second1 = real_seconds / 10;
655 tod_3000.second2 = real_seconds % 10;
656 tod_3000.minute1 = real_minutes / 10;
657 tod_3000.minute2 = real_minutes % 10;
658
659 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
660 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
661 int cnt = 5;
662
663 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
664
665 while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--)
666 {
667 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
668 udelay(70);
669 tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
670 }
671
672 if (!cnt)
673 printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1);
674
675 tod_2000.second1 = real_seconds / 10;
676 tod_2000.second2 = real_seconds % 10;
677 tod_2000.minute1 = real_minutes / 10;
678 tod_2000.minute2 = real_minutes % 10;
679
680 tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
681 }
682
683 return 0;
684 }
685
686 static unsigned int amiga_get_ss( void )
687 {
688 unsigned int s;
689
690 if (AMIGAHW_PRESENT(A3000_CLK)) {
691 tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
692 s = tod_3000.second1 * 10 + tod_3000.second2;
693 tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
694 } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
695 s = tod_2000.second1 * 10 + tod_2000.second2;
696 }
697 return s;
698 }
699
700 static NORET_TYPE void amiga_reset( void )
701 ATTRIB_NORET;
702
703 static void amiga_reset (void)
704 {
705 unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
706 unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
707
708 local_irq_disable();
709 if (CPU_IS_040_OR_060)
710 /* Setup transparent translation registers for mapping
711 * of 16 MB kernel segment before disabling translation
712 */
713 __asm__ __volatile__
714 ("movel %0,%/d0\n\t"
715 "andl #0xff000000,%/d0\n\t"
716 "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */
717 ".chip 68040\n\t"
718 "movec %%d0,%%itt0\n\t"
719 "movec %%d0,%%dtt0\n\t"
720 ".chip 68k\n\t"
721 "jmp %0@\n\t"
722 : /* no outputs */
723 : "a" (jmp_addr040));
724 else
725 /* for 680[23]0, just disable translation and jump to the physical
726 * address of the label
727 */
728 __asm__ __volatile__
729 ("pmove %/tc,%@\n\t"
730 "bclr #7,%@\n\t"
731 "pmove %@,%/tc\n\t"
732 "jmp %0@\n\t"
733 : /* no outputs */
734 : "a" (jmp_addr));
735 jmp_addr_label040:
736 /* disable translation on '040 now */
737 __asm__ __volatile__
738 ("moveq #0,%/d0\n\t"
739 ".chip 68040\n\t"
740 "movec %%d0,%%tc\n\t" /* disable MMU */
741 ".chip 68k\n\t"
742 : /* no outputs */
743 : /* no inputs */
744 : "d0");
745
746 jmp_addr_label:
747 /* pickup reset address from AmigaOS ROM, reset devices and jump
748 * to reset address
749 */
750 __asm__ __volatile__
751 ("movew #0x2700,%/sr\n\t"
752 "leal 0x01000000,%/a0\n\t"
753 "subl %/a0@(-0x14),%/a0\n\t"
754 "movel %/a0@(4),%/a0\n\t"
755 "subql #2,%/a0\n\t"
756 "bra 1f\n\t"
757 /* align on a longword boundary */
758 __ALIGN_STR "\n"
759 "1:\n\t"
760 "reset\n\t"
761 "jmp %/a0@" : /* Just that gcc scans it for % escapes */ );
762
763 for (;;);
764
765 }
766
767
768 /*
769 * Debugging
770 */
771
772 #define SAVEKMSG_MAXMEM 128*1024
773
774 #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
775 #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
776
777 struct savekmsg {
778 unsigned long magic1; /* SAVEKMSG_MAGIC1 */
779 unsigned long magic2; /* SAVEKMSG_MAGIC2 */
780 unsigned long magicptr; /* address of magic1 */
781 unsigned long size;
782 char data[0];
783 };
784
785 static struct savekmsg *savekmsg;
786
787 static void amiga_mem_console_write(struct console *co, const char *s,
788 unsigned int count)
789 {
790 if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
791 memcpy(savekmsg->data+savekmsg->size, s, count);
792 savekmsg->size += count;
793 }
794 }
795
796 static void amiga_savekmsg_init(void)
797 {
798 static struct resource debug_res = { .name = "Debug" };
799
800 savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);
801 savekmsg->magic1 = SAVEKMSG_MAGIC1;
802 savekmsg->magic2 = SAVEKMSG_MAGIC2;
803 savekmsg->magicptr = ZTWO_PADDR(savekmsg);
804 savekmsg->size = 0;
805 }
806
807 static void amiga_serial_putc(char c)
808 {
809 amiga_custom.serdat = (unsigned char)c | 0x100;
810 while (!(amiga_custom.serdatr & 0x2000))
811 ;
812 }
813
814 void amiga_serial_console_write(struct console *co, const char *s,
815 unsigned int count)
816 {
817 while (count--) {
818 if (*s == '\n')
819 amiga_serial_putc('\r');
820 amiga_serial_putc(*s++);
821 }
822 }
823
824 #ifdef CONFIG_SERIAL_CONSOLE
825 void amiga_serial_puts(const char *s)
826 {
827 amiga_serial_console_write(NULL, s, strlen(s));
828 }
829
830 int amiga_serial_console_wait_key(struct console *co)
831 {
832 int ch;
833
834 while (!(amiga_custom.intreqr & IF_RBF))
835 barrier();
836 ch = amiga_custom.serdatr & 0xff;
837 /* clear the interrupt, so that another character can be read */
838 amiga_custom.intreq = IF_RBF;
839 return ch;
840 }
841
842 void amiga_serial_gets(struct console *co, char *s, int len)
843 {
844 int ch, cnt = 0;
845
846 while (1) {
847 ch = amiga_serial_console_wait_key(co);
848
849 /* Check for backspace. */
850 if (ch == 8 || ch == 127) {
851 if (cnt == 0) {
852 amiga_serial_putc('\007');
853 continue;
854 }
855 cnt--;
856 amiga_serial_puts("\010 \010");
857 continue;
858 }
859
860 /* Check for enter. */
861 if (ch == 10 || ch == 13)
862 break;
863
864 /* See if line is too long. */
865 if (cnt >= len + 1) {
866 amiga_serial_putc(7);
867 cnt--;
868 continue;
869 }
870
871 /* Store and echo character. */
872 s[cnt++] = ch;
873 amiga_serial_putc(ch);
874 }
875 /* Print enter. */
876 amiga_serial_puts("\r\n");
877 s[cnt] = 0;
878 }
879 #endif
880
881 static void __init amiga_debug_init(void)
882 {
883 if (!strcmp( m68k_debug_device, "ser" )) {
884 /* no initialization required (?) */
885 amiga_console_driver.write = amiga_serial_console_write;
886 register_console(&amiga_console_driver);
887 }
888 }
889
890 #ifdef CONFIG_HEARTBEAT
891 static void amiga_heartbeat(int on)
892 {
893 if (on)
894 ciaa.pra &= ~2;
895 else
896 ciaa.pra |= 2;
897 }
898 #endif
899
900 /*
901 * Amiga specific parts of /proc
902 */
903
904 static void amiga_get_model(char *model)
905 {
906 strcpy(model, amiga_model_name);
907 }
908
909
910 static int amiga_get_hardware_list(char *buffer)
911 {
912 int len = 0;
913
914 if (AMIGAHW_PRESENT(CHIP_RAM))
915 len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
916 len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
917 amiga_psfreq, amiga_eclock);
918 if (AMIGAHW_PRESENT(AMI_VIDEO)) {
919 char *type;
920 switch(amiga_chipset) {
921 case CS_OCS:
922 type = "OCS";
923 break;
924 case CS_ECS:
925 type = "ECS";
926 break;
927 case CS_AGA:
928 type = "AGA";
929 break;
930 default:
931 type = "Old or Unknown";
932 break;
933 }
934 len += sprintf(buffer+len, "Graphics:\t%s\n", type);
935 }
936
937 #define AMIGAHW_ANNOUNCE(name, str) \
938 if (AMIGAHW_PRESENT(name)) \
939 len += sprintf (buffer+len, "\t%s\n", str)
940
941 len += sprintf (buffer + len, "Detected hardware:\n");
942
943 AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
944 AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
945 AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
946 AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
947 AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
948 AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
949 AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
950 AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
951 AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
952 AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
953 AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
954 AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
955 AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
956 AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
957 AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
958 AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
959 AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
960 AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
961 AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
962 AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
963 AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
964 AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
965 AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
966 AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
967 AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
968 AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
969 AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
970 AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
971 AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
972 #ifdef CONFIG_ZORRO
973 if (AMIGAHW_PRESENT(ZORRO))
974 len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion "
975 "Device%s\n",
976 AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
977 zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
978 #endif /* CONFIG_ZORRO */
979
980 #undef AMIGAHW_ANNOUNCE
981
982 return(len);
983 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree