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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 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;
    int			i;
    void **		map;

    PE_init_kprintf(TRUE);
    PE_init_printf(TRUE);

    // init this now to get mace debugger for iokit startup
    PE_init_ethernet_debugger();

    
    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];
	}
    }
    vc_progress_initialize( &default_progress, default_progress_data, (unsigned char *) appleClut8 );

    PE_initialize_console( (PE_Video *) 0, kPEAcquireScreen );

    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;
    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.bus_clock_rate_num * gPEClockFrequencyInfo.bus_to_dec_rate_num;
  den = gPEClockFrequencyInfo.bus_clock_rate_den * gPEClockFrequencyInfo.bus_to_dec_rate_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	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* file: pe_init.c
	24	* PPC platform expert initialization.
	25	*/
	26	#include <mach/boot_info.h>
	27	#include <mach/time_value.h>
	28	#include <pexpert/protos.h>
	29	#include <pexpert/pexpert.h>
	30	#include <pexpert/ppc/interrupts.h>
	31	#include <pexpert/device_tree.h>
	32	#include <pexpert/pe_images.h>
	33	#include <kern/debug.h>
9bccf70c	34	#include <kern/sched_prim.h>
1c79356b A	35
	36	/* extern references */
	37	void pe_identify_machine(void);
	38
	39	/* private globals */
	40	PE_state_t PE_state;
	41
	42	/* Clock Frequency Info */
	43	clock_frequency_info_t gPEClockFrequencyInfo;
	44
	45	static int PE_stub_read_write_time_of_day(unsigned int options, long * secs)
	46	{
	47	// believe it or, BSD crashes if invalid time returned. FIXME.
	48	if( options == kPEReadTOD)
	49	*secs = 0xb2383c72;
	50
	51	return 0;
	52	}
	53
	54	static int PE_stub_poll_input(unsigned int options, char * c)
	55	{
	56	*c = 0xff;
	57
	58	return 1;
	59	}
	60
	61	static int PE_stub_write_IIC(unsigned char addr, unsigned char reg,
	62	unsigned char data)
	63	{
	64	return 1;
	65	}
	66
	67	int (PE_read_write_time_of_day)(unsigned int options, long secs)
	68	= PE_stub_read_write_time_of_day;
	69	int (PE_poll_input)(unsigned int options, char c)
	70	= PE_stub_poll_input;
	71
	72	int (*PE_write_IIC)(unsigned char addr, unsigned char reg,
	73	unsigned char data)
	74	= PE_stub_write_IIC;
	75
	76
	77	int PE_initialize_console( PE_Video * info, int op )
	78	{
	79	static int last_console = -1;
	80	Boot_Video bootInfo;
	81	Boot_Video * bInfo;
	82
	83	if( info) {
	84	bootInfo.v_baseAddr = info->v_baseAddr;
	85	bootInfo.v_rowBytes = info->v_rowBytes;
	86	bootInfo.v_width = info->v_width;
	87	bootInfo.v_height = info->v_height;
	88	bootInfo.v_depth = info->v_depth;
	89	bootInfo.v_display = 0;
	90	bInfo = &bootInfo;
	91	} else
	92	bInfo = 0;
	93
	94	switch( op ) {
	95
	96	case kPEDisableScreen:
	97	initialize_screen((void *) bInfo, op);
	98	last_console = switch_to_serial_console();
99	kprintf("kPEDisableScreen %d\n",last_console);
100	break;
101
102	case kPEEnableScreen:
103	initialize_screen((void *) bInfo, op);
104	kprintf("kPEEnableScreen %d\n",last_console);
105	if( last_console != -1)
106	switch_to_old_console( last_console);
107	break;
108
109	default:
110	initialize_screen((void *) bInfo, op);
111	break;
112	}
113
114	return 0;
115	}
116
1c79356b A	117	void PE_init_iokit(void)
	118	{
	119	kern_return_t ret;
9bccf70c A	120	DTEntry entry;
	121	int size;
	122	int i;
	123	void ** map;
1c79356b A	124
	125	PE_init_kprintf(TRUE);
	126	PE_init_printf(TRUE);
	127
	128	// init this now to get mace debugger for iokit startup
	129	PE_init_ethernet_debugger();
	130
9bccf70c A	131
	132	if( kSuccess == DTLookupEntry(0, "/chosen/memory-map", &entry)) {
	133
	134	boot_progress_element * bootPict;
	135
	136	if( kSuccess == DTGetProperty(entry, "BootCLUT", (void **) &map, &size))
	137	bcopy( map[0], appleClut8, sizeof(appleClut8) );
	138
	139	if( kSuccess == DTGetProperty(entry, "Pict-FailedBoot", (void **) &map, &size)) {
	140
	141	bootPict = (boot_progress_element *) map[0];
	142	default_noroot.width = bootPict->width;
	143	default_noroot.height = bootPict->height;
	144	default_noroot.dx = 0;
	145	default_noroot.dy = bootPict->yOffset;
	146	default_noroot_data = &bootPict->data[0];
	147	}
1c79356b	148	}
9bccf70c	149	vc_progress_initialize( &default_progress, default_progress_data, (unsigned char *) appleClut8 );
1c79356b A	150
	151	PE_initialize_console( (PE_Video *) 0, kPEAcquireScreen );
	152
	153	ret = StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs,
	154	(void )0, (void )0);
	155	}
	156
	157	void PE_init_platform(boolean_t vm_initialized, void *_args)
	158	{
	159	boot_args args = (boot_args )_args;
	160
	161	if (PE_state.initialized == FALSE)
	162	{
	163	PE_state.initialized = TRUE;
	164	PE_state.bootArgs = _args;
	165	PE_state.deviceTreeHead = args->deviceTreeP;
	166	PE_state.video.v_baseAddr = args->Video.v_baseAddr;
	167	PE_state.video.v_rowBytes = args->Video.v_rowBytes;
	168	PE_state.video.v_width = args->Video.v_width;
	169	PE_state.video.v_height = args->Video.v_height;
	170	PE_state.video.v_depth = args->Video.v_depth;
	171	PE_state.video.v_display = args->Video.v_display;
	172	strcpy( PE_state.video.v_pixelFormat, "PPPPPPPP");
	173	}
	174
	175	if (!vm_initialized)
	176	{
	177	/*
	178	* Setup the OpenFirmware Device Tree routines
	179	* so the console can be found and the right I/O space
	180	* can be used..
	181	*/
	182	DTInit(PE_state.deviceTreeHead);
	183
	184	/* Setup gPEClockFrequencyInfo */
	185	pe_identify_machine();
	186	}
	187	else
	188	{
	189	pe_init_debug();
	190	}
	191	}
	192
	193	void PE_create_console( void )
	194	{
	195	if (PE_state.video.v_display)
	196	PE_initialize_console( &PE_state.video, kPEGraphicsMode );
	197	else
	198	PE_initialize_console( &PE_state.video, kPETextMode );
	199	}
	200
	201	int PE_current_console( PE_Video * info )
	202	{
	203	*info = PE_state.video;
	204	return( 0);
	205	}
	206
	207	void PE_display_icon( unsigned int flags,
	208	const char * name )
	209	{
9bccf70c A	210	if( default_noroot_data)
9bccf70c A	211	vc_display_icon( &default_noroot, default_noroot_data );
1c79356b A	212	}
	213
	214	extern boolean_t PE_get_hotkey(
	215	unsigned char key)
	216	{
	217	unsigned char * adbKeymap;
	218	int size;
	219	DTEntry entry;
	220
	221	if( (kSuccess != DTLookupEntry( 0, "/", &entry))
	222	\|\| (kSuccess != DTGetProperty( entry, "AAPL,adb-keymap",
	223	(void **)&adbKeymap, &size))
	224	\|\| (size != 16))
	225
	226	return( FALSE);
	227
	228	if( key > 127)
	229	return( FALSE);
	230
	231	return( adbKeymap[ key / 8 ] & (0x80 >> (key & 7)));
	232	}
	233
	234	static timebase_callback_func gTimebaseCallback;
	235
	236	void PE_register_timebase_callback(timebase_callback_func callback)
	237	{
	238	gTimebaseCallback = callback;
	239
	240	PE_call_timebase_callback();
	241	}
	242
	243	void PE_call_timebase_callback(void)
	244	{
	245	struct timebase_freq_t timebase_freq;
	246	unsigned long num, den, cnt;
	247
	248	num = gPEClockFrequencyInfo.bus_clock_rate_num * gPEClockFrequencyInfo.bus_to_dec_rate_num;
	249	den = gPEClockFrequencyInfo.bus_clock_rate_den * gPEClockFrequencyInfo.bus_to_dec_rate_den;
	250
	251	cnt = 2;
	252	while (cnt <= den) {
	253	if ((num % cnt) \|\| (den % cnt)) {
	254	cnt++;
	255	continue;
	256	}
	257
	258	num /= cnt;
	259	den /= cnt;
	260	}
	261
	262	timebase_freq.timebase_num = num;
	263	timebase_freq.timebase_den = den;
	264
	265	if (gTimebaseCallback) gTimebaseCallback(&timebase_freq);
	266	}