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
41static unsigned long amiga_model;
42
43unsigned long amiga_eclock;
44EXPORT_SYMBOL(amiga_eclock);
45
46unsigned long amiga_colorclock;
47EXPORT_SYMBOL(amiga_colorclock);
48
49unsigned long amiga_chipset;
50EXPORT_SYMBOL(amiga_chipset);
51
52unsigned char amiga_vblank;
53EXPORT_SYMBOL(amiga_vblank);
54
55static unsigned char amiga_psfreq;
56
57struct amiga_hw_present amiga_hw_present;
58EXPORT_SYMBOL(amiga_hw_present);
59
60static char s_a500[] __initdata = "A500";
61static char s_a500p[] __initdata = "A500+";
62static char s_a600[] __initdata = "A600";
63static char s_a1000[] __initdata = "A1000";
64static char s_a1200[] __initdata = "A1200";
65static char s_a2000[] __initdata = "A2000";
66static char s_a2500[] __initdata = "A2500";
67static char s_a3000[] __initdata = "A3000";
68static char s_a3000t[] __initdata = "A3000T";
69static char s_a3000p[] __initdata = "A3000+";
70static char s_a4000[] __initdata = "A4000";
71static char s_a4000t[] __initdata = "A4000T";
72static char s_cdtv[] __initdata = "CDTV";
73static char s_cd32[] __initdata = "CD32";
74static char s_draco[] __initdata = "Draco";
75static 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
93static char amiga_model_name[13] = "Amiga ";
94
95static void amiga_sched_init(void);
96static void amiga_get_model(char *model);
97static void amiga_get_hardware_list(struct seq_file *m);
98extern void amiga_mksound(unsigned int count, unsigned int ticks);
99static void amiga_reset(void);
100extern void amiga_init_sound(void);
101static void amiga_mem_console_write(struct console *co, const char *b,
102				    unsigned int count);
103#ifdef CONFIG_HEARTBEAT
104static void amiga_heartbeat(int on);
105#endif
106
107static struct console amiga_console_driver = {
108	.name	= "debug",
109	.flags	= CON_PRINTBUFFER,
110	.index	= -1,
111};
112
113
114    /*
115     *  Motherboard Resources present in all Amiga models
116     */
117
118static struct {
119	struct resource _ciab, _ciaa, _custom, _kickstart;
120} mb_resources = {
121	._ciab = {
122		.name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff
123	},
124	._ciaa = {
125		.name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff
126	},
127	._custom = {
128		.name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff
129	},
130	._kickstart = {
131		.name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff
132	}
133};
134
135static struct resource ram_resource[NUM_MEMINFO];
136
137
138    /*
139     *  Parse an Amiga-specific record in the bootinfo
140     */
141
142int __init amiga_parse_bootinfo(const struct bi_record *record)
143{
144	int unknown = 0;
145	const void *data = record->data;
146
147	switch (be16_to_cpu(record->tag)) {
148	case BI_AMIGA_MODEL:
149		amiga_model = be32_to_cpup(data);
150		break;
151
152	case BI_AMIGA_ECLOCK:
153		amiga_eclock = be32_to_cpup(data);
154		break;
155
156	case BI_AMIGA_CHIPSET:
157		amiga_chipset = be32_to_cpup(data);
158		break;
159
160	case BI_AMIGA_CHIP_SIZE:
161		amiga_chip_size = be32_to_cpup(data);
162		break;
163
164	case BI_AMIGA_VBLANK:
165		amiga_vblank = *(const __u8 *)data;
166		break;
167
168	case BI_AMIGA_PSFREQ:
169		amiga_psfreq = *(const __u8 *)data;
170		break;
171
172	case BI_AMIGA_AUTOCON:
173#ifdef CONFIG_ZORRO
174		if (zorro_num_autocon < ZORRO_NUM_AUTO) {
175			const struct ConfigDev *cd = data;
176			struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++];
177			dev->rom = cd->cd_Rom;
178			dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr);
179			dev->slotsize = be16_to_cpu(cd->cd_SlotSize);
180			dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr);
181			dev->boardsize = be32_to_cpu(cd->cd_BoardSize);
182		} else
183			pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n");
184#endif /* CONFIG_ZORRO */
185		break;
186
187	case BI_AMIGA_SERPER:
188		/* serial port period: ignored here */
189		break;
190
191	default:
192		unknown = 1;
193	}
194	return unknown;
195}
196
197    /*
198     *  Identify builtin hardware
199     */
200
201static void __init amiga_identify(void)
202{
203	/* Fill in some default values, if necessary */
204	if (amiga_eclock == 0)
205		amiga_eclock = 709379;
206
207	memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
208
209	pr_info("Amiga hardware found: ");
210	if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
211		pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]);
212		strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
213	}
214
215	switch (amiga_model) {
216	case AMI_UNKNOWN:
217		break;
218
219	case AMI_600:
220	case AMI_1200:
221		AMIGAHW_SET(A1200_IDE);
222		AMIGAHW_SET(PCMCIA);
223		fallthrough;
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		break;
231
232	case AMI_3000:
233	case AMI_3000T:
234		AMIGAHW_SET(AMBER_FF);
235		AMIGAHW_SET(MAGIC_REKICK);
236		fallthrough;
237	case AMI_3000PLUS:
238		AMIGAHW_SET(A3000_SCSI);
239		AMIGAHW_SET(A3000_CLK);
240		AMIGAHW_SET(ZORRO3);
241		break;
242
243	case AMI_4000T:
244		AMIGAHW_SET(A4000_SCSI);
245		fallthrough;
246	case AMI_4000:
247		AMIGAHW_SET(A4000_IDE);
248		AMIGAHW_SET(A3000_CLK);
249		AMIGAHW_SET(ZORRO3);
250		break;
251
252	case AMI_CDTV:
253	case AMI_CD32:
254		AMIGAHW_SET(CD_ROM);
255		AMIGAHW_SET(A2000_CLK);             /* Is this correct? */
256		break;
257
258	case AMI_DRACO:
259		panic("No support for Draco yet");
260
261	default:
262		panic("Unknown Amiga Model");
263	}
264
265	AMIGAHW_SET(AMI_VIDEO);
266	AMIGAHW_SET(AMI_BLITTER);
267	AMIGAHW_SET(AMI_AUDIO);
268	AMIGAHW_SET(AMI_FLOPPY);
269	AMIGAHW_SET(AMI_KEYBOARD);
270	AMIGAHW_SET(AMI_MOUSE);
271	AMIGAHW_SET(AMI_SERIAL);
272	AMIGAHW_SET(AMI_PARALLEL);
273	AMIGAHW_SET(CHIP_RAM);
274	AMIGAHW_SET(PAULA);
275
276	switch (amiga_chipset) {
277	case CS_OCS:
278	case CS_ECS:
279	case CS_AGA:
280		switch (amiga_custom.deniseid & 0xf) {
281		case 0x0c:
282			AMIGAHW_SET(DENISE_HR);
283			break;
284		case 0x08:
285			AMIGAHW_SET(LISA);
286			break;
287		default:
288			AMIGAHW_SET(DENISE);
289			break;
290		}
291		break;
292	}
293	switch ((amiga_custom.vposr>>8) & 0x7f) {
294	case 0x00:
295		AMIGAHW_SET(AGNUS_PAL);
296		break;
297	case 0x10:
298		AMIGAHW_SET(AGNUS_NTSC);
299		break;
300	case 0x20:
301	case 0x21:
302		AMIGAHW_SET(AGNUS_HR_PAL);
303		break;
304	case 0x30:
305	case 0x31:
306		AMIGAHW_SET(AGNUS_HR_NTSC);
307		break;
308	case 0x22:
309	case 0x23:
310		AMIGAHW_SET(ALICE_PAL);
311		break;
312	case 0x32:
313	case 0x33:
314		AMIGAHW_SET(ALICE_NTSC);
315		break;
316	}
317	AMIGAHW_SET(ZORRO);
318
319#define AMIGAHW_ANNOUNCE(name, str)		\
320	if (AMIGAHW_PRESENT(name))		\
321		pr_cont(str)
322
323	AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
324	AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
325	AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
326	AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
327	AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
328	AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
329	AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
330	AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
331	AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
332	AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
333	AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
334	AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
335	AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
336	AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
337	AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
338	AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
339	AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
340	AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
341	AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
342	AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
343	AMIGAHW_ANNOUNCE(LISA, "LISA ");
344	AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
345	AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
346	AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
347	AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
348	AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
349	AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
350	AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
351	AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
352	if (AMIGAHW_PRESENT(ZORRO))
353		pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
354	pr_cont("\n");
355
356#undef AMIGAHW_ANNOUNCE
357}
358
359
360static unsigned long amiga_random_get_entropy(void)
361{
362	/* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */
363	return *(unsigned long *)&amiga_custom.vposr;
364}
365
366
367    /*
368     *  Setup the Amiga configuration info
369     */
370
371void __init config_amiga(void)
372{
373	int i;
374
375	amiga_identify();
376
377	/* Yuk, we don't have PCI memory */
378	iomem_resource.name = "Memory";
379	for (i = 0; i < 4; i++)
380		request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
381
382	mach_sched_init      = amiga_sched_init;
383	mach_init_IRQ        = amiga_init_IRQ;
384	mach_get_model       = amiga_get_model;
385	mach_get_hardware_list = amiga_get_hardware_list;
386	mach_reset           = amiga_reset;
387#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
388	mach_beep            = amiga_mksound;
389#endif
390
391#ifdef CONFIG_HEARTBEAT
392	mach_heartbeat = amiga_heartbeat;
393#endif
394
395	mach_random_get_entropy = amiga_random_get_entropy;
396
397	/* Fill in the clock value (based on the 700 kHz E-Clock) */
398	amiga_colorclock = 5*amiga_eclock;	/* 3.5 MHz */
399
400	/* clear all DMA bits */
401	amiga_custom.dmacon = DMAF_ALL;
402	/* ensure that the DMA master bit is set */
403	amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
404
405	/* don't use Z2 RAM as system memory on Z3 capable machines */
406	if (AMIGAHW_PRESENT(ZORRO3)) {
407		int i, j;
408		u32 disabled_z2mem = 0;
409
410		for (i = 0; i < m68k_num_memory; i++) {
411			if (m68k_memory[i].addr < 16*1024*1024) {
412				if (i == 0) {
413					/* don't cut off the branch we're sitting on */
414					pr_warn("Warning: kernel runs in Zorro II memory\n");
415					continue;
416				}
417				disabled_z2mem += m68k_memory[i].size;
418				m68k_num_memory--;
419				for (j = i; j < m68k_num_memory; j++)
420					m68k_memory[j] = m68k_memory[j+1];
421				i--;
422			}
423		}
424		if (disabled_z2mem)
425			pr_info("%dK of Zorro II memory will not be used as system memory\n",
426				disabled_z2mem>>10);
427	}
428
429	/* request all RAM */
430	for (i = 0; i < m68k_num_memory; i++) {
431		ram_resource[i].name =
432			(m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
433			(m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
434			"16-bit Slow RAM";
435		ram_resource[i].start = m68k_memory[i].addr;
436		ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
437		request_resource(&iomem_resource, &ram_resource[i]);
438	}
439
440	/* initialize chipram allocator */
441	amiga_chip_init();
442
443	/* our beloved beeper */
444	if (AMIGAHW_PRESENT(AMI_AUDIO))
445		amiga_init_sound();
446
447	/*
448	 * if it is an A3000, set the magic bit that forces
449	 * a hard rekick
450	 */
451	if (AMIGAHW_PRESENT(MAGIC_REKICK))
452		*(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
453}
454
455static u64 amiga_read_clk(struct clocksource *cs);
456
457static struct clocksource amiga_clk = {
458	.name   = "ciab",
459	.rating = 250,
460	.read   = amiga_read_clk,
461	.mask   = CLOCKSOURCE_MASK(32),
462	.flags  = CLOCK_SOURCE_IS_CONTINUOUS,
463};
464
465static unsigned short jiffy_ticks;
466static u32 clk_total, clk_offset;
467
468static irqreturn_t ciab_timer_handler(int irq, void *dev_id)
469{
470	clk_total += jiffy_ticks;
471	clk_offset = 0;
472	legacy_timer_tick(1);
473	timer_heartbeat();
474
475	return IRQ_HANDLED;
476}
477
478static void __init amiga_sched_init(void)
479{
480	static struct resource sched_res = {
481		.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
482	};
483	jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
484
485	if (request_resource(&mb_resources._ciab, &sched_res))
486		pr_warn("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	if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER,
497			"timer", NULL))
498		pr_err("Couldn't register timer interrupt\n");
499	/* start timer */
500	ciab.cra |= 0x11;
501
502	clocksource_register_hz(&amiga_clk, amiga_eclock);
503}
504
505static u64 amiga_read_clk(struct clocksource *cs)
506{
507	unsigned short hi, lo, hi2;
508	unsigned long flags;
509	u32 ticks;
510
511	local_irq_save(flags);
512
513	/* read CIA B timer A current value */
514	hi  = ciab.tahi;
515	lo  = ciab.talo;
516	hi2 = ciab.tahi;
517
518	if (hi != hi2) {
519		lo = ciab.talo;
520		hi = hi2;
521	}
522
523	ticks = hi << 8 | lo;
524
525	if (ticks > jiffy_ticks / 2)
526		/* check for pending interrupt */
527		if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
528			clk_offset = jiffy_ticks;
529
530	ticks = jiffy_ticks - ticks;
531	ticks += clk_offset + clk_total;
532
533	local_irq_restore(flags);
534
535	return ticks;
536}
537
538static void amiga_reset(void)  __noreturn;
539
540static void amiga_reset(void)
541{
542	unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
543	unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
544
545	local_irq_disable();
546	if (CPU_IS_040_OR_060)
547		/* Setup transparent translation registers for mapping
548		 * of 16 MB kernel segment before disabling translation
549		 */
550		asm volatile ("\n"
551			"	move.l	%0,%%d0\n"
552			"	and.l	#0xff000000,%%d0\n"
553			"	or.w	#0xe020,%%d0\n"   /* map 16 MB, enable, cacheable */
554			"	.chip	68040\n"
555			"	movec	%%d0,%%itt0\n"
556			"	movec	%%d0,%%dtt0\n"
557			"	.chip	68k\n"
558			"	jmp	%0@\n"
559			: /* no outputs */
560			: "a" (jmp_addr040)
561			: "d0");
562	else
563		/* for 680[23]0, just disable translation and jump to the physical
564		 * address of the label
565		 */
566		asm volatile ("\n"
567			"	pmove	%%tc,%@\n"
568			"	bclr	#7,%@\n"
569			"	pmove	%@,%%tc\n"
570			"	jmp	%0@\n"
571			: /* no outputs */
572			: "a" (jmp_addr));
573jmp_addr_label040:
574	/* disable translation on '040 now */
575	asm volatile ("\n"
576		"	moveq	#0,%%d0\n"
577		"	.chip	68040\n"
578		"	movec	%%d0,%%tc\n"	/* disable MMU */
579		"	.chip	68k\n"
580		: /* no outputs */
581		: /* no inputs */
582		: "d0");
583
584	jmp_addr_label:
585	/* pickup reset address from AmigaOS ROM, reset devices and jump
586	 * to reset address
587	 */
588	asm volatile ("\n"
589		"	move.w	#0x2700,%sr\n"
590		"	lea	0x01000000,%a0\n"
591		"	sub.l	%a0@(-0x14),%a0\n"
592		"	move.l	%a0@(4),%a0\n"
593		"	subq.l	#2,%a0\n"
594		"	jra	1f\n"
595		/* align on a longword boundary */
596		"	" __ALIGN_STR "\n"
597		"1:\n"
598		"	reset\n"
599		"	jmp   %a0@");
600
601	for (;;)
602		;
603}
604
605
606    /*
607     *  Debugging
608     */
609
610#define SAVEKMSG_MAXMEM		128*1024
611
612#define SAVEKMSG_MAGIC1		0x53415645	/* 'SAVE' */
613#define SAVEKMSG_MAGIC2		0x4B4D5347	/* 'KMSG' */
614
615struct savekmsg {
616	unsigned long magic1;		/* SAVEKMSG_MAGIC1 */
617	unsigned long magic2;		/* SAVEKMSG_MAGIC2 */
618	unsigned long magicptr;		/* address of magic1 */
619	unsigned long size;
620	char data[];
621};
622
623static struct savekmsg *savekmsg;
624
625static void amiga_mem_console_write(struct console *co, const char *s,
626				    unsigned int count)
627{
628	if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
629		memcpy(savekmsg->data + savekmsg->size, s, count);
630		savekmsg->size += count;
631	}
632}
633
634static int __init amiga_savekmsg_setup(char *arg)
635{
636	bool registered;
637
638	if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
639		return 0;
640
641	if (amiga_chip_size < SAVEKMSG_MAXMEM) {
642		pr_err("Not enough chipram for debugging\n");
643		return -ENOMEM;
644	}
645
646	/* Just steal the block, the chipram allocator isn't functional yet */
647	amiga_chip_size -= SAVEKMSG_MAXMEM;
648	savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
649	savekmsg->magic1 = SAVEKMSG_MAGIC1;
650	savekmsg->magic2 = SAVEKMSG_MAGIC2;
651	savekmsg->magicptr = ZTWO_PADDR(savekmsg);
652	savekmsg->size = 0;
653
654	registered = !!amiga_console_driver.write;
655	amiga_console_driver.write = amiga_mem_console_write;
656	if (!registered)
657		register_console(&amiga_console_driver);
658	return 0;
659}
660
661early_param("debug", amiga_savekmsg_setup);
662
663static void amiga_serial_putc(char c)
664{
665	amiga_custom.serdat = (unsigned char)c | 0x100;
666	while (!(amiga_custom.serdatr & 0x2000))
667		;
668}
669
670static void amiga_serial_console_write(struct console *co, const char *s,
671				       unsigned int count)
672{
673	while (count--) {
674		if (*s == '\n')
675			amiga_serial_putc('\r');
676		amiga_serial_putc(*s++);
677	}
678}
679
680#if 0
681void amiga_serial_puts(const char *s)
682{
683	amiga_serial_console_write(NULL, s, strlen(s));
684}
685
686int amiga_serial_console_wait_key(struct console *co)
687{
688	int ch;
689
690	while (!(amiga_custom.intreqr & IF_RBF))
691		barrier();
692	ch = amiga_custom.serdatr & 0xff;
693	/* clear the interrupt, so that another character can be read */
694	amiga_custom.intreq = IF_RBF;
695	return ch;
696}
697
698void amiga_serial_gets(struct console *co, char *s, int len)
699{
700	int ch, cnt = 0;
701
702	while (1) {
703		ch = amiga_serial_console_wait_key(co);
704
705		/* Check for backspace. */
706		if (ch == 8 || ch == 127) {
707			if (cnt == 0) {
708				amiga_serial_putc('\007');
709				continue;
710			}
711			cnt--;
712			amiga_serial_puts("\010 \010");
713			continue;
714		}
715
716		/* Check for enter. */
717		if (ch == 10 || ch == 13)
718			break;
719
720		/* See if line is too long. */
721		if (cnt >= len + 1) {
722			amiga_serial_putc(7);
723			cnt--;
724			continue;
725		}
726
727		/* Store and echo character. */
728		s[cnt++] = ch;
729		amiga_serial_putc(ch);
730	}
731	/* Print enter. */
732	amiga_serial_puts("\r\n");
733	s[cnt] = 0;
734}
735#endif
736
737static int __init amiga_debug_setup(char *arg)
738{
739	bool registered;
740
741	if (!MACH_IS_AMIGA || strcmp(arg, "ser"))
742		return 0;
743
744	/* no initialization required (?) */
745	registered = !!amiga_console_driver.write;
746	amiga_console_driver.write = amiga_serial_console_write;
747	if (!registered)
748		register_console(&amiga_console_driver);
749	return 0;
750}
751
752early_param("debug", amiga_debug_setup);
753
754#ifdef CONFIG_HEARTBEAT
755static void amiga_heartbeat(int on)
756{
757	if (on)
758		ciaa.pra &= ~2;
759	else
760		ciaa.pra |= 2;
761}
762#endif
763
764    /*
765     *  Amiga specific parts of /proc
766     */
767
768static void amiga_get_model(char *model)
769{
770	strcpy(model, amiga_model_name);
771}
772
773
774static void amiga_get_hardware_list(struct seq_file *m)
775{
776	if (AMIGAHW_PRESENT(CHIP_RAM))
777		seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
778	seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
779			amiga_psfreq, amiga_eclock);
780	if (AMIGAHW_PRESENT(AMI_VIDEO)) {
781		char *type;
782		switch (amiga_chipset) {
783		case CS_OCS:
784			type = "OCS";
785			break;
786		case CS_ECS:
787			type = "ECS";
788			break;
789		case CS_AGA:
790			type = "AGA";
791			break;
792		default:
793			type = "Old or Unknown";
794			break;
795		}
796		seq_printf(m, "Graphics:\t%s\n", type);
797	}
798
799#define AMIGAHW_ANNOUNCE(name, str)			\
800	if (AMIGAHW_PRESENT(name))			\
801		seq_printf (m, "\t%s\n", str)
802
803	seq_puts(m, "Detected hardware:\n");
804	AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
805	AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
806	AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
807	AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
808	AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
809	AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
810	AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
811	AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
812	AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
813	AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
814	AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
815	AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
816	AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
817	AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
818	AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
819	AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
820	AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
821	AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
822	AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
823	AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
824	AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
825	AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
826	AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
827	AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
828	AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
829	AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
830	AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
831	AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
832	AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
833#ifdef CONFIG_ZORRO
834	if (AMIGAHW_PRESENT(ZORRO))
835		seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
836				"Device%s\n",
837				AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
838				zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
839#endif /* CONFIG_ZORRO */
840
841#undef AMIGAHW_ANNOUNCE
842}
843
844/*
845 * The Amiga keyboard driver needs key_maps, but we cannot export it in
846 * drivers/char/defkeymap.c, as it is autogenerated
847 */
848#ifdef CONFIG_HW_CONSOLE
849EXPORT_SYMBOL_GPL(key_maps);
850#endif
851