[apple/xnu.git] / pexpert / ppc / pe_init.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * file: pe_init.c
 *    PPC platform expert initialization.
 */
#include <mach/boot_info.h>
#include <mach/time_value.h>
#include <pexpert/protos.h>
#include <pexpert/pexpert.h>
#include <pexpert/ppc/interrupts.h>
#include <pexpert/device_tree.h>
#include <pexpert/pe_images.h>
#include <kern/debug.h>
#include <kern/sched_prim.h>

/* extern references */
void pe_identify_machine(void);

/* private globals */
PE_state_t PE_state;

/* Clock Frequency Info */
clock_frequency_info_t gPEClockFrequencyInfo;

static int PE_stub_read_write_time_of_day(unsigned int options, long * secs)
{
    // believe it or, BSD crashes if invalid time returned. FIXME.
    if( options == kPEReadTOD)
        *secs = 0xb2383c72;

    return 0;
}

static int PE_stub_poll_input(unsigned int options, char * c)
{
    *c = 0xff;

    return 1;
}

static int PE_stub_write_IIC(unsigned char addr, unsigned char reg,
				unsigned char data)
{
    return 1;
}

int (*PE_read_write_time_of_day)(unsigned int options, long * secs)
	= PE_stub_read_write_time_of_day;
int (*PE_poll_input)(unsigned int options, char * c)
	= PE_stub_poll_input;

int (*PE_write_IIC)(unsigned char addr, unsigned char reg,
				unsigned char data)
	= PE_stub_write_IIC;


int PE_initialize_console( PE_Video * info, int op )
{
    static int		last_console = -1;
    Boot_Video		bootInfo;
    Boot_Video	*	bInfo;

    if( info) {
        bootInfo.v_baseAddr		= info->v_baseAddr;
        bootInfo.v_rowBytes		= info->v_rowBytes;
        bootInfo.v_width		= info->v_width;
        bootInfo.v_height		= info->v_height;
        bootInfo.v_depth		= info->v_depth;
        bootInfo.v_display		= 0;
	bInfo = &bootInfo;
    } else
	bInfo = 0;

    switch( op ) {

	case kPEDisableScreen:
            initialize_screen((void *) bInfo, op);
            last_console = switch_to_serial_console();
            kprintf("kPEDisableScreen %d\n",last_console);
	    break;

	case kPEEnableScreen:
            initialize_screen((void *) bInfo, op);
            kprintf("kPEEnableScreen %d\n",last_console);
            if( last_console != -1)
                switch_to_old_console( last_console);
	    break;
	
	default:
            initialize_screen((void *) bInfo, op);
	    break;
    }

    return 0;
}

void PE_init_iokit(void)
{
    kern_return_t	ret;
    DTEntry		entry;
    int			size;
    void **		map;

    PE_init_kprintf(TRUE);
    PE_init_printf(TRUE);

    if( kSuccess == DTLookupEntry(0, "/chosen/memory-map", &entry)) {

	boot_progress_element * bootPict;

	if( kSuccess == DTGetProperty(entry, "BootCLUT", (void **) &map, &size))
	    bcopy( map[0], appleClut8, sizeof(appleClut8) );

	if( kSuccess == DTGetProperty(entry, "Pict-FailedBoot", (void **) &map, &size)) {

	    bootPict = (boot_progress_element *) map[0];
	    default_noroot.width  = bootPict->width;
	    default_noroot.height = bootPict->height;
	    default_noroot.dx     = 0;
	    default_noroot.dy     = bootPict->yOffset;
	    default_noroot_data   = &bootPict->data[0];
	}
    }
    panic_ui_initialize( (unsigned char *) appleClut8 );
    vc_progress_initialize( &default_progress, default_progress_data, (unsigned char *) appleClut8 );

    ret = StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs, (void *)0, (void *)0);
}

void PE_init_platform(boolean_t vm_initialized, void *_args)
{
        boot_args *args = (boot_args *)_args;

	if (PE_state.initialized == FALSE)
	{
	  PE_state.initialized		= TRUE;
	  PE_state.bootArgs		= _args;
	  PE_state.deviceTreeHead	= args->deviceTreeP;
	  PE_state.video.v_baseAddr	= args->Video.v_baseAddr;
	  PE_state.video.v_rowBytes	= args->Video.v_rowBytes;
	  PE_state.video.v_width	= args->Video.v_width;
	  PE_state.video.v_height	= args->Video.v_height;
	  PE_state.video.v_depth	= args->Video.v_depth;
	  PE_state.video.v_display	= args->Video.v_display;
	  strcpy( PE_state.video.v_pixelFormat, "PPPPPPPP");
	}

	if (!vm_initialized)
	{
            /*
             * Setup the OpenFirmware Device Tree routines
             * so the console can be found and the right I/O space
             * can be used..
             */
            DTInit(PE_state.deviceTreeHead);
	
            /* Setup gPEClockFrequencyInfo */
            pe_identify_machine();
	}
	else
	{
	    pe_init_debug();
	}
}

void PE_create_console( void )
{
    if ( PE_state.video.v_display )
        PE_initialize_console( &PE_state.video, kPEGraphicsMode );
    else
        PE_initialize_console( &PE_state.video, kPETextMode );
}

int PE_current_console( PE_Video * info )
{
    *info = PE_state.video;
    info->v_baseAddr = 0;
    return( 0);
}

void PE_display_icon(	unsigned int flags,
			const char * name )
{
    if( default_noroot_data)
	vc_display_icon( &default_noroot, default_noroot_data );
}

extern boolean_t PE_get_hotkey(
	unsigned char	key)
{
    unsigned char * adbKeymap;
    int		size;
    DTEntry	entry;

    if( (kSuccess != DTLookupEntry( 0, "/", &entry))
    ||  (kSuccess != DTGetProperty( entry, "AAPL,adb-keymap",
            (void **)&adbKeymap, &size))
    || (size != 16))

        return( FALSE);

    if( key > 127)
	return( FALSE);

    return( adbKeymap[ key / 8 ] & (0x80 >> (key & 7)));
}

static timebase_callback_func gTimebaseCallback;

void PE_register_timebase_callback(timebase_callback_func callback)
{
  gTimebaseCallback = callback;
  
  PE_call_timebase_callback();
}

void PE_call_timebase_callback(void)
{
  struct timebase_freq_t timebase_freq;
  unsigned long          num, den, cnt;
  
  num = gPEClockFrequencyInfo.timebase_frequency_num;
  den = gPEClockFrequencyInfo.timebase_frequency_den;
  
  cnt = 2;
  while (cnt <= den) {
    if ((num % cnt) || (den % cnt)) {
      cnt++;
      continue;
    }
    
    num /= cnt;
    den /= cnt;
  }
  
  timebase_freq.timebase_num = num;
  timebase_freq.timebase_den = den;
  
  if (gTimebaseCallback) gTimebaseCallback(&timebase_freq);
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/*
	26	* file: pe_init.c
	27	* PPC platform expert initialization.
	28	*/
	29	#include <mach/boot_info.h>
	30	#include <mach/time_value.h>
	31	#include <pexpert/protos.h>
	32	#include <pexpert/pexpert.h>
	33	#include <pexpert/ppc/interrupts.h>
	34	#include <pexpert/device_tree.h>
	35	#include <pexpert/pe_images.h>
	36	#include <kern/debug.h>
9bccf70c	37	#include <kern/sched_prim.h>
1c79356b A	38
	39	/* extern references */
	40	void pe_identify_machine(void);
	41
	42	/* private globals */
	43	PE_state_t PE_state;
	44
	45	/* Clock Frequency Info */
	46	clock_frequency_info_t gPEClockFrequencyInfo;
	47
	48	static int PE_stub_read_write_time_of_day(unsigned int options, long * secs)
	49	{
	50	// believe it or, BSD crashes if invalid time returned. FIXME.
	51	if( options == kPEReadTOD)
	52	*secs = 0xb2383c72;
	53
	54	return 0;
	55	}
	56
	57	static int PE_stub_poll_input(unsigned int options, char * c)
	58	{
	59	*c = 0xff;
	60
	61	return 1;
	62	}
	63
	64	static int PE_stub_write_IIC(unsigned char addr, unsigned char reg,
	65	unsigned char data)
	66	{
	67	return 1;
	68	}
	69
	70	int (PE_read_write_time_of_day)(unsigned int options, long secs)
	71	= PE_stub_read_write_time_of_day;
	72	int (PE_poll_input)(unsigned int options, char c)
	73	= PE_stub_poll_input;
	74
	75	int (*PE_write_IIC)(unsigned char addr, unsigned char reg,
	76	unsigned char data)
	77	= PE_stub_write_IIC;
	78
	79
	80	int PE_initialize_console( PE_Video * info, int op )
	81	{
	82	static int last_console = -1;
	83	Boot_Video bootInfo;
	84	Boot_Video * bInfo;
	85
	86	if( info) {
	87	bootInfo.v_baseAddr = info->v_baseAddr;
	88	bootInfo.v_rowBytes = info->v_rowBytes;
	89	bootInfo.v_width = info->v_width;
	90	bootInfo.v_height = info->v_height;
	91	bootInfo.v_depth = info->v_depth;
	92	bootInfo.v_display = 0;
	93	bInfo = &bootInfo;
	94	} else
	95	bInfo = 0;
	96
	97	switch( op ) {
	98
	99	case kPEDisableScreen:
	100	initialize_screen((void *) bInfo, op);
	101	last_console = switch_to_serial_console();
102	kprintf("kPEDisableScreen %d\n",last_console);
103	break;
104
105	case kPEEnableScreen:
106	initialize_screen((void *) bInfo, op);
107	kprintf("kPEEnableScreen %d\n",last_console);
108	if( last_console != -1)
109	switch_to_old_console( last_console);
110	break;
111
112	default:
113	initialize_screen((void *) bInfo, op);
114	break;
115	}
116
117	return 0;
118	}
119
1c79356b A	120	void PE_init_iokit(void)
	121	{
	122	kern_return_t ret;
9bccf70c A	123	DTEntry entry;
9bccf70c A	124	int size;
9bccf70c	125	void ** map;
1c79356b A	126
	127	PE_init_kprintf(TRUE);
	128	PE_init_printf(TRUE);
	129
9bccf70c A	130	if( kSuccess == DTLookupEntry(0, "/chosen/memory-map", &entry)) {
	131
	132	boot_progress_element * bootPict;
	133
	134	if( kSuccess == DTGetProperty(entry, "BootCLUT", (void **) &map, &size))
	135	bcopy( map[0], appleClut8, sizeof(appleClut8) );
	136
	137	if( kSuccess == DTGetProperty(entry, "Pict-FailedBoot", (void **) &map, &size)) {
	138
	139	bootPict = (boot_progress_element *) map[0];
	140	default_noroot.width = bootPict->width;
	141	default_noroot.height = bootPict->height;
	142	default_noroot.dx = 0;
	143	default_noroot.dy = bootPict->yOffset;
	144	default_noroot_data = &bootPict->data[0];
	145	}
1c79356b	146	}
55e303ae	147	panic_ui_initialize( (unsigned char *) appleClut8 );
9bccf70c	148	vc_progress_initialize( &default_progress, default_progress_data, (unsigned char *) appleClut8 );
1c79356b	149
55e303ae	150	ret = StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs, (void )0, (void )0);
1c79356b A	151	}
	152
	153	void PE_init_platform(boolean_t vm_initialized, void *_args)
	154	{
	155	boot_args args = (boot_args )_args;
	156
	157	if (PE_state.initialized == FALSE)
	158	{
	159	PE_state.initialized = TRUE;
	160	PE_state.bootArgs = _args;
	161	PE_state.deviceTreeHead = args->deviceTreeP;
	162	PE_state.video.v_baseAddr = args->Video.v_baseAddr;
	163	PE_state.video.v_rowBytes = args->Video.v_rowBytes;
	164	PE_state.video.v_width = args->Video.v_width;
	165	PE_state.video.v_height = args->Video.v_height;
	166	PE_state.video.v_depth = args->Video.v_depth;
	167	PE_state.video.v_display = args->Video.v_display;
	168	strcpy( PE_state.video.v_pixelFormat, "PPPPPPPP");
	169	}
	170
	171	if (!vm_initialized)
	172	{
	173	/*
	174	* Setup the OpenFirmware Device Tree routines
	175	* so the console can be found and the right I/O space
	176	* can be used..
	177	*/
	178	DTInit(PE_state.deviceTreeHead);
	179
	180	/* Setup gPEClockFrequencyInfo */
	181	pe_identify_machine();
	182	}
	183	else
	184	{
	185	pe_init_debug();
	186	}
	187	}
	188
	189	void PE_create_console( void )
	190	{
55e303ae A	191	if ( PE_state.video.v_display )
	192	PE_initialize_console( &PE_state.video, kPEGraphicsMode );
	193	else
	194	PE_initialize_console( &PE_state.video, kPETextMode );
1c79356b A	195	}
	196
	197	int PE_current_console( PE_Video * info )
	198	{
	199	*info = PE_state.video;
55e303ae	200	info->v_baseAddr = 0;
1c79356b A	201	return( 0);
	202	}
	203
	204	void PE_display_icon( unsigned int flags,
	205	const char * name )
	206	{
9bccf70c A	207	if( default_noroot_data)
9bccf70c A	208	vc_display_icon( &default_noroot, default_noroot_data );
1c79356b A	209	}
	210
	211	extern boolean_t PE_get_hotkey(
	212	unsigned char key)
	213	{
	214	unsigned char * adbKeymap;
	215	int size;
	216	DTEntry entry;
	217
	218	if( (kSuccess != DTLookupEntry( 0, "/", &entry))
	219	\|\| (kSuccess != DTGetProperty( entry, "AAPL,adb-keymap",
	220	(void **)&adbKeymap, &size))
	221	\|\| (size != 16))
	222
	223	return( FALSE);
	224
	225	if( key > 127)
	226	return( FALSE);
	227
	228	return( adbKeymap[ key / 8 ] & (0x80 >> (key & 7)));
	229	}
	230
	231	static timebase_callback_func gTimebaseCallback;
	232
	233	void PE_register_timebase_callback(timebase_callback_func callback)
	234	{
	235	gTimebaseCallback = callback;
	236
	237	PE_call_timebase_callback();
	238	}
	239
	240	void PE_call_timebase_callback(void)
	241	{
	242	struct timebase_freq_t timebase_freq;
	243	unsigned long num, den, cnt;
	244
90556fb8 A	245	num = gPEClockFrequencyInfo.timebase_frequency_num;
90556fb8 A	246	den = gPEClockFrequencyInfo.timebase_frequency_den;
1c79356b A	247
	248	cnt = 2;
	249	while (cnt <= den) {
	250	if ((num % cnt) \|\| (den % cnt)) {
	251	cnt++;
	252	continue;
	253	}
	254
	255	num /= cnt;
	256	den /= cnt;
	257	}
	258
	259	timebase_freq.timebase_num = num;
	260	timebase_freq.timebase_den = den;
	261
	262	if (gTimebaseCallback) gTimebaseCallback(&timebase_freq);
	263	}