#include <sys/types.h>
#include <mach/vm_param.h>
#include <machine/machine_routines.h>
#include <pexpert/protos.h>
#include <pexpert/pexpert.h>
#include <pexpert/boot.h>
#include <pexpert/device_tree.h>
#include <pexpert/pe_images.h>
#include <kern/sched_prim.h>
#include <kern/debug.h>
#if CONFIG_CSR
#include <sys/csr.h>
#endif
#include "boot_images.h"
extern void pe_identify_machine(void * args);
PE_state_t PE_state;
clock_frequency_info_t gPEClockFrequencyInfo;
void *gPEEFISystemTable;
void *gPEEFIRuntimeServices;
static boot_icon_element* norootIcon_lzss;
static const uint8_t* norootClut_lzss;
int PE_initialize_console( PE_Video * info, int op )
{
static int last_console = -1;
if (info) {
info->v_offset = 0;
info->v_length = 0;
info->v_display = GRAPHICS_MODE;
}
switch ( op ) {
case kPEDisableScreen:
initialize_screen(info, op);
kprintf("kPEDisableScreen %d\n", last_console);
if (!console_is_serial())
last_console = switch_to_serial_console();
break;
case kPEEnableScreen:
initialize_screen(info, op);
if (info) PE_state.video = *info;
kprintf("kPEEnableScreen %d\n", last_console);
if( last_console != -1)
switch_to_old_console( last_console);
break;
case kPEBaseAddressChange:
if (info) PE_state.video = *info;
default:
initialize_screen(info, op);
break;
}
return 0;
}
void PE_init_iokit(void)
{
enum { kMaxBootVar = 128 };
boolean_t bootClutInitialized = FALSE;
boolean_t noroot_rle_Initialized = FALSE;
DTEntry entry;
unsigned int size;
uint32_t *map;
boot_progress_element *bootPict;
norootIcon_lzss = NULL;
norootClut_lzss = NULL;
PE_init_kprintf(TRUE);
PE_init_printf(TRUE);
kprintf("Kernel boot args: '%s'\n", PE_boot_args());
if( kSuccess == DTLookupEntry(NULL, "/chosen/memory-map", &entry)) {
if( kSuccess == DTGetProperty(entry, "BootCLUT", (void **) &map, &size)) {
if (sizeof(appleClut8) <= map[1]) {
bcopy( (void *)ml_static_ptovirt(map[0]), appleClut8, sizeof(appleClut8) );
bootClutInitialized = TRUE;
}
}
if( kSuccess == DTGetProperty(entry, "Pict-FailedBoot", (void **) &map, &size)) {
bootPict = (boot_progress_element *) ml_static_ptovirt(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];
noroot_rle_Initialized = TRUE;
}
if( kSuccess == DTGetProperty(entry, "FailedCLUT", (void **) &map, &size)) {
norootClut_lzss = (uint8_t*) ml_static_ptovirt(map[0]);
}
if( kSuccess == DTGetProperty(entry, "FailedImage", (void **) &map, &size)) {
norootIcon_lzss = (boot_icon_element *) ml_static_ptovirt(map[0]);
if (norootClut_lzss == NULL) {
printf("ERROR: No FailedCLUT provided for noroot icon!\n");
}
}
}
if (!bootClutInitialized) {
bcopy( (void *) (uintptr_t) bootClut, (void *) appleClut8, sizeof(appleClut8) );
}
if (!noroot_rle_Initialized) {
default_noroot.width = kFailedBootWidth;
default_noroot.height = kFailedBootHeight;
default_noroot.dx = 0;
default_noroot.dy = kFailedBootOffset;
default_noroot_data = failedBootPict;
}
vc_progress_initialize(&default_progress,
default_progress_data1x,
default_progress_data2x,
default_progress_data3x,
(unsigned char *) appleClut8);
StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs, gPEEFIRuntimeServices, NULL);
}
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 = (void *) ml_static_ptovirt(args->deviceTreeP);
if (args->Video.v_baseAddr) {
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;
strlcpy(PE_state.video.v_pixelFormat, "PPPPPPPP",
sizeof(PE_state.video.v_pixelFormat));
} else {
PE_state.video.v_baseAddr = args->VideoV1.v_baseAddr; PE_state.video.v_rowBytes = args->VideoV1.v_rowBytes;
PE_state.video.v_width = args->VideoV1.v_width;
PE_state.video.v_height = args->VideoV1.v_height;
PE_state.video.v_depth = args->VideoV1.v_depth;
PE_state.video.v_display = args->VideoV1.v_display;
strlcpy(PE_state.video.v_pixelFormat, "PPPPPPPP",
sizeof(PE_state.video.v_pixelFormat));
}
#ifdef kBootArgsFlagHiDPI
if (args->flags & kBootArgsFlagHiDPI)
PE_state.video.v_scale = kPEScaleFactor2x;
else
PE_state.video.v_scale = kPEScaleFactor1x;
#else
PE_state.video.v_scale = kPEScaleFactor1x;
#endif
}
if (!vm_initialized) {
if (PE_state.deviceTreeHead) {
DTInit(PE_state.deviceTreeHead);
}
pe_identify_machine(args);
pe_init_debug();
}
}
void PE_create_console( void )
{
if ( PE_state.video.v_display == GRAPHICS_MODE )
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( __unused unsigned int flags, __unused const char * name )
{
if ( norootIcon_lzss && norootClut_lzss ) {
uint32_t width = norootIcon_lzss->width;
uint32_t height = norootIcon_lzss->height;
uint32_t x = ((PE_state.video.v_width - width) / 2);
uint32_t y = ((PE_state.video.v_height - height) / 2) + norootIcon_lzss->y_offset_from_center;
vc_display_lzss_icon(x, y, width, height,
&norootIcon_lzss->data[0],
norootIcon_lzss->data_size,
norootClut_lzss);
}
else if ( default_noroot_data ) {
vc_display_icon( &default_noroot, default_noroot_data );
} else {
printf("ERROR: No data found for noroot icon!\n");
}
}
boolean_t
PE_get_hotkey(__unused unsigned char key)
{
return (FALSE);
}
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);
}
static int
PE_stub_poll_input(__unused unsigned int options, char * c)
{
*c = 0xff;
return 1;
}
int (*PE_poll_input)(unsigned int options, char * c)
= PE_stub_poll_input;
boolean_t
PE_reboot_on_panic(void)
{
boot_args *args = (boot_args *)PE_state.bootArgs;
if (args->flags & kBootArgsFlagRebootOnPanic)
return TRUE;
else
return FALSE;
}
uint32_t
PE_i_can_has_debugger(uint32_t *debug_flags)
{
#if CONFIG_CSR
if (csr_check(CSR_ALLOW_KERNEL_DEBUGGER) != 0 &&
csr_check(CSR_ALLOW_APPLE_INTERNAL) != 0) {
if (debug_flags)
*debug_flags = 0;
return FALSE;
}
#endif
if (debug_flags) {
*debug_flags = debug_boot_arg;
}
return TRUE;
}