config.c

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/*
 *  linux/arch/m68k/mac/config.c
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

/*
 * Miscellaneous linux stuff
 */

#include <linux/config.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/kd.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/interrupt.h>
/* keyb */
#include <linux/random.h>
#include <linux/delay.h>
/* keyb */
#include <linux/init.h>

#define BOOTINFO_COMPAT_1_0
#include <asm/setup.h>
#include <asm/bootinfo.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pgtable.h>
#include <asm/machdep.h>

#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/machw.h>

#include <asm/mac_iop.h>
#include <asm/mac_via.h>
#include <asm/mac_oss.h>
#include <asm/mac_psc.h>

/* Mac bootinfo struct */

struct mac_booter_data mac_bi_data = {0,};
int mac_bisize = sizeof mac_bi_data;

/* New m68k bootinfo stuff and videobase */

extern int m68k_num_memory;
extern struct mem_info m68k_memory[NUM_MEMINFO];

extern struct mem_info m68k_ramdisk;

extern char m68k_command_line[CL_SIZE];

void *mac_env;		/* Loaded by the boot asm */

/* The phys. video addr. - might be bogus on some machines */
unsigned long mac_orig_videoaddr;

/* Mac specific timer functions */
extern void mac_gettod (int *, int *, int *, int *, int *, int *);
extern unsigned long mac_gettimeoffset (void);
extern int mac_hwclk (int, struct hwclk_time *);
extern int mac_set_clock_mmss (unsigned long);
extern int mac_get_irq_list(char *);
extern void iop_preinit(void);
extern void iop_init(void);
extern void via_init(void);
extern void via_init_clock(void (*func)(int, void *, struct pt_regs *));
extern void via_flush_cache(void);
extern void oss_init(void);
extern void psc_init(void);
extern void baboon_init(void);

extern void (*kd_mksound)(unsigned int, unsigned int);
extern void mac_mksound(unsigned int, unsigned int);
extern int mac_floppy_init(void);
extern void mac_floppy_setup(char *,int *);

extern void nubus_sweep_video(void);

/* Mac specific debug functions (in debug.c) */
extern void mac_debug_init(void);
extern void mac_debugging_long(int, long);

extern void (*kd_mksound)(unsigned int, unsigned int);

extern int mackbd_init_hw(void);
extern void mackbd_leds(unsigned int leds);
extern int mackbd_translate(unsigned char keycode, unsigned char *keycodep, char raw_mode);

extern void mac_hid_init_hw(void);
extern int mac_hid_kbd_translate(unsigned char scancode, unsigned char *keycode, char raw_mode);

#ifdef CONFIG_MAGIC_SYSRQ
extern unsigned char mac_hid_kbd_sysrq_xlate[128];
extern unsigned char pckbd_sysrq_xlate[128];
extern unsigned char mackbd_sysrq_xlate[128];
#endif /* CONFIG_MAGIC_SYSRQ */

static void mac_get_model(char *str);

void mac_bang(int irq, void *vector, struct pt_regs *p)
{
	printk("Resetting ...\n");
	mac_reset();
}

static void mac_sched_init(void (*vector)(int, void *, struct pt_regs *))
{
	via_init_clock(vector);
}

#if 0
void mac_waitbut (void)
{
	;
}
#endif

extern struct fb_info *mac_fb_init(long *);

extern void mac_default_handler(int, void *, struct pt_regs *);

void (*mac_handlers[8])(int, void *, struct pt_regs *)=
{
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler
};

/*
 * Parse a Macintosh-specific record in the bootinfo
 */

int __init mac_parse_bootinfo(const struct bi_record *record)
{
    int unknown = 0;
    const u_long *data = record->data;

    switch (record->tag) {
	case BI_MAC_MODEL:
	    mac_bi_data.id = *data;
	    break;
	case BI_MAC_VADDR:
	    mac_bi_data.videoaddr = *data;
	    break;
	case BI_MAC_VDEPTH:
	    mac_bi_data.videodepth = *data;
	    break;
	case BI_MAC_VROW:
	    mac_bi_data.videorow = *data;
	    break;
	case BI_MAC_VDIM:
	    mac_bi_data.dimensions = *data;
	    break;
	case BI_MAC_VLOGICAL:
	    mac_bi_data.videological = VIDEOMEMBASE + (*data & ~VIDEOMEMMASK);
	    mac_orig_videoaddr = *data;
	    break;
	case BI_MAC_SCCBASE:
	    mac_bi_data.sccbase = *data;
	    break;
	case BI_MAC_BTIME:
	    mac_bi_data.boottime = *data;
	    break;
	case BI_MAC_GMTBIAS:
	    mac_bi_data.gmtbias = *data;
	    break;
	case BI_MAC_MEMSIZE:
	    mac_bi_data.memsize = *data;
	    break;
	case BI_MAC_CPUID:
	    mac_bi_data.cpuid = *data;
	    break;
        case BI_MAC_ROMBASE:
	    mac_bi_data.rombase = *data;
	    break;
	default:
	    unknown = 1;
    }
    return(unknown);
}

/*
 * Flip into 24bit mode for an instant - flushes the L2 cache card. We
 * have to disable interrupts for this. Our IRQ handlers will crap 
 * themselves if they take an IRQ in 24bit mode!
 */

static void mac_cache_card_flush(int writeback)
{
	unsigned long cpu_flags;
	save_flags(cpu_flags);
	cli();
	via_flush_cache();
	restore_flags(cpu_flags);
}

void __init config_mac(void)
{
	if (!MACH_IS_MAC) {
	  printk("ERROR: no Mac, but config_mac() called!! \n");
	}
	
#ifdef CONFIG_VT
#ifdef CONFIG_INPUT_ADBHID
	mach_keyb_init       = mac_hid_init_hw;
	mach_kbd_translate   = mac_hid_kbd_translate;
#ifdef CONFIG_MAGIC_SYSRQ
#ifdef CONFIG_MAC_ADBKEYCODES
	if (!keyboard_sends_linux_keycodes) {
		mach_sysrq_xlate = mac_hid_kbd_sysrq_xlate;
		SYSRQ_KEY = 0x69;
	} else
#endif /* CONFIG_MAC_ADBKEYCODES */
	{
		mach_sysrq_xlate = pckbd_sysrq_xlate;
		SYSRQ_KEY = 0x54;
	}
#endif /* CONFIG_MAGIC_SYSRQ */
#elif defined(CONFIG_ADB_KEYBOARD)
	mach_keyb_init       = mackbd_init_hw;
	mach_kbd_leds        = mackbd_leds;
	mach_kbd_translate   = mackbd_translate;
	mach_sysrq_xlate     = mackbd_sysrq_xlate;
	SYSRQ_KEY = 0x69;
#endif /* CONFIG_INPUT_ADBHID */
#endif /* CONFIG_VT */

	mach_sched_init      = mac_sched_init;
	mach_init_IRQ        = mac_init_IRQ;
	mach_request_irq     = mac_request_irq;
	mach_free_irq        = mac_free_irq;
	enable_irq           = mac_enable_irq;
	disable_irq          = mac_disable_irq;
	mach_get_model	 = mac_get_model;
	mach_default_handler = &mac_handlers;
	mach_get_irq_list    = mac_get_irq_list;
	mach_gettimeoffset   = mac_gettimeoffset;
	mach_gettod          = mac_gettod;
	mach_hwclk           = mac_hwclk;
	mach_set_clock_mmss	 = mac_set_clock_mmss;
#if 0
	mach_mksound         = mac_mksound;
#endif
	mach_reset           = mac_reset;
	mach_halt            = mac_poweroff;
	mach_power_off       = mac_poweroff;
	conswitchp	         = &dummy_con;
	mach_max_dma_address = 0xffffffff;
#if 0
	mach_debug_init	 = mac_debug_init;
#endif
	kd_mksound		 = mac_mksound;
#ifdef CONFIG_HEARTBEAT
#if 0
	mach_heartbeat = mac_heartbeat;
	mach_heartbeat_irq = IRQ_MAC_TIMER;
#endif