]> git.saurik.com Git - apple/xnu.git/blobdiff - pexpert/i386/pe_init.c
xnu-792.18.15.tar.gz
[apple/xnu.git] / pexpert / i386 / pe_init.c
index a483e72f6ee4349a8bc865c4ad84097aec217a3e..f85167df9fae6e6fa364b903aa63b3f9a5a4f971 100644 (file)
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * file: pe_init.c
 #include <pexpert/boot.h>
 #include <pexpert/device_tree.h>
 #include <pexpert/pe_images.h>
+#include <kern/sched_prim.h>
 #include <kern/debug.h>
 
 #include "fakePPCStructs.h"
 #include "fakePPCDeviceTree.h"
+#include "boot_images.h"
 
 /* extern references */
 extern void pe_identify_machine(void * args);
 extern void initialize_screen(void *, unsigned int);
 
-/* Local references */
-static vm_offset_t mapframebuffer(caddr_t,int);
-static vm_offset_t PE_fb_vaddr = 0;
-static int         PE_fb_mode  = TEXT_MODE;
-
 /* private globals */
-PE_state_t PE_state;
+PE_state_t  PE_state;
+dt_data     gMemoryMapNode;
+dt_data     gDriversProp;
+dt_data     gRootpathProp;
+dt_data     gCompatibleProp;
 
 /* Clock Frequency Info */
 clock_frequency_info_t gPEClockFrequencyInfo;
 
+void *gPEEFISystemTable     = 0;
+void *gPEEFIRuntimeServices = 0;
+
 int PE_initialize_console( PE_Video * info, int op )
 {
     static int   last_console = -1;
@@ -60,15 +70,19 @@ int PE_initialize_console( PE_Video * info, int op )
      * Refuse changes from outside pexpert.
      * The video mode setup by the booter cannot be changed.
      */
-    if ( info && (info == &PE_state.video) )
+    if ( info )
     {
-        bootInfo.v_baseAddr     = PE_fb_vaddr;
+        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   = PE_fb_mode;
         bInfo = &bootInfo;
+        if (info == &PE_state.video) {
+            bootInfo.v_display   = info->v_display;
+        } else {
+            bootInfo.v_display  = GRAPHICS_MODE;
+        }
     }
     else
         bInfo = 0;
@@ -77,19 +91,16 @@ int PE_initialize_console( PE_Video * info, int op )
 
         case kPEDisableScreen:
             initialize_screen((void *) bInfo, op);
-#ifdef FIXME
-            last_console = switch_to_serial_console();
-#endif
             kprintf("kPEDisableScreen %d\n", last_console);
+           if (!console_is_serial())
+               last_console = switch_to_serial_console();
             break;
 
         case kPEEnableScreen:
             initialize_screen((void *) bInfo, op);
             kprintf("kPEEnableScreen %d\n", last_console);
-#ifdef FIXME
             if( last_console != -1)
                 switch_to_old_console( last_console);
-#endif
             break;
        
         default:
@@ -102,110 +113,114 @@ int PE_initialize_console( PE_Video * info, int op )
 
 void PE_init_iokit(void)
 {
-    long *          dt;
-    void *          desc;
-    unsigned char * data;
-    unsigned char * clut;
+    enum { kMaxBootVar = 128 };
+        
+    typedef struct {
+        char            name[32];
+        unsigned long   length;
+        unsigned long   value[2];
+    } DriversPackageProp;
 
-    dt = (long *) createdt(
-               fakePPCDeviceTree,
-               &((boot_args*)PE_state.fakePPCBootArgs)->deviceTreeLength);
+    boolean_t bootClutInitialized = FALSE;
+    boolean_t norootInitialized = FALSE;
+    DTEntry             entry;
+    int                        size;
+    void **            map;
 
-    /* Setup powermac_info and powermac_machine_info structures */
+    PE_init_kprintf(TRUE);
+    PE_init_printf(TRUE);
 
-    ((boot_args*)PE_state.fakePPCBootArgs)->deviceTreeP        = (unsigned long *) dt;
-    ((boot_args*)PE_state.fakePPCBootArgs)->topOfKernelData    = (unsigned int) kalloc(0x2000);
+    kprintf("Kernel boot args: '%s'\n", PE_boot_args());
 
-    /* 
-     * Setup the OpenFirmware Device Tree routines
-     * so the console can be found and the right I/O space 
-     * can be used..
+    /*
+     * Fetch the CLUT and the noroot image.
      */
-    DTInit(dt);
+       boot_progress_element * bootPict;
+
+    if( kSuccess == DTLookupEntry(0, "/chosen/memory-map", &entry)) {
+       if( kSuccess == DTGetProperty(entry, "BootCLUT", (void **) &map, &size)) {
+           bcopy( map[0], appleClut8, sizeof(appleClut8) );
+            bootClutInitialized = TRUE;
+        }
+
+       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];
+            norootInitialized = TRUE;
+       }
+    }
 
+    if (!bootClutInitialized) {
+    bcopy( (void *) (uintptr_t) bootClut, (void *) appleClut8, sizeof(appleClut8) );
+    }
+
+    if (!norootInitialized) {
+    default_noroot.width  = kFailedBootWidth;
+    default_noroot.height = kFailedBootHeight;
+    default_noroot.dx     = 0;
+    default_noroot.dy     = kFailedBootOffset;
+    default_noroot_data   = failedBootPict;
+    }
+    
     /*
-     * Initialize the spinning wheel (progress indicator).
+     * Initialize the panic UI
      */
-    clut = appleClut8;
-    desc = &default_progress;
-    data = default_progress_data;
+    panic_ui_initialize( (unsigned char *) appleClut8 );
 
-    vc_progress_initialize( desc, data, clut );
-
-    PE_initialize_console( (PE_Video *) 0, kPEAcquireScreen );
+    /*
+     * Initialize the spinning wheel (progress indicator).
+     */
+    vc_progress_initialize( &default_progress, default_progress_data,
+                            (unsigned char *) appleClut8 );
 
-    (void) StartIOKit( (void*)dt, (void*)PE_state.fakePPCBootArgs, 0, 0);
+    (void) StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs, gPEEFIRuntimeServices, 0);
 }
 
-void PE_init_platform(boolean_t vm_initialized, void * args)
+void PE_init_platform(boolean_t vm_initialized, void * _args)
 {
-       if (PE_state.initialized == FALSE)
-       {
-        extern unsigned int halt_in_debugger, disableDebugOuput;
-        unsigned int debug_arg;
+    boot_args *args = (boot_args *)_args;
 
+    if (PE_state.initialized == FALSE) {
            PE_state.initialized        = TRUE;
-           PE_state.bootArgs           = args;
-           PE_state.video.v_baseAddr   = ((KERNBOOTSTRUCT *)args)->video.v_baseAddr;
-           PE_state.video.v_rowBytes   = ((KERNBOOTSTRUCT *)args)->video.v_rowBytes;
-           PE_state.video.v_height     = ((KERNBOOTSTRUCT *)args)->video.v_height;
-           PE_state.video.v_width      = ((KERNBOOTSTRUCT *)args)->video.v_width;
-           PE_state.video.v_depth      = ((KERNBOOTSTRUCT *)args)->video.v_depth;
-        PE_state.video.v_display    = ((KERNBOOTSTRUCT *)args)->video.v_display;
-        PE_fb_mode                  = ((KERNBOOTSTRUCT *)args)->graphicsMode;
-           PE_state.fakePPCBootArgs    = (boot_args *)&fakePPCBootArgs;
-           ((boot_args *)PE_state.fakePPCBootArgs)->machineType        = 386;
-
-        if (PE_fb_mode == TEXT_MODE)
-        {
-            /* Force a text display if the booter did not setup a
-             * VESA frame buffer.
-             */
-            PE_state.video.v_display = 0;
-        }
 
-        /*
-         * If DB_HALT flag is set, then cause a breakpoint to the debugger
-         * immediately after the kernel debugger has been initialized.
-         *
-         * If DB_PRT flag is set, then enable debugger printf.
-         */
-        disableDebugOuput = TRUE; /* FIXME: override osfmk/i386/AT386/model_dep.c */
-
-        if (PE_parse_boot_arg("debug", &debug_arg)) {
-            if (debug_arg & DB_HALT) halt_in_debugger = 1;
-            if (debug_arg & DB_PRT)  disableDebugOuput = FALSE; 
-       }
-       }
+        // New EFI-style
+        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)
-       {
+    if (!vm_initialized) {
                /* Hack! FIXME.. */ 
         outb(0x21, 0xff);   /* Maskout all interrupts Pic1 */
         outb(0xa1, 0xff);   /* Maskout all interrupts Pic2 */
  
-       pe_identify_machine(args);
-       }
-       else
-       {
-         pe_init_debug();
-        
-         PE_create_console();
-       }
+        if (PE_state.deviceTreeHead) {
+            DTInit(PE_state.deviceTreeHead);
+    }
+
+        pe_identify_machine(args);
+    } else {
+        DTEntry entry;
+        void *ptr;
+        uint32_t size;
+
+        pe_init_debug();
+    }
 }
 
 void PE_create_console( void )
 {
-    if ( (PE_fb_vaddr == 0) && (PE_state.video.v_baseAddr != 0) )
-    {
-        PE_fb_vaddr = mapframebuffer((caddr_t) PE_state.video.v_baseAddr,
-                                     (PE_fb_mode == TEXT_MODE)  ?
-                      /* text mode */  PE_state.video.v_rowBytes :
-                      /* grfx mode */  PE_state.video.v_rowBytes *
-                                        PE_state.video.v_height);
-    }
-
-       if (PE_state.video.v_display)
+    if ( PE_state.video.v_display == GRAPHICS_MODE )
         PE_initialize_console( &PE_state.video, kPEGraphicsMode );
     else
         PE_initialize_console( &PE_state.video, kPETextMode );
@@ -215,24 +230,16 @@ int PE_current_console( PE_Video * info )
 {
     *info = PE_state.video;
 
-    if ( PE_fb_mode == TEXT_MODE )
-    {
-        /*
-         * FIXME: Prevent the IOBootFrameBuffer from starting up
-         * when we are in Text mode.
-         */
-        info->v_baseAddr = 0;
-    }
-
     return (0);
 }
 
-void PE_display_icon( unsigned int flags,
-                      const char * name )
+void PE_display_icon( __unused unsigned int flags, __unused const char * name )
 {
+    if ( default_noroot_data )
+        vc_display_icon( &default_noroot, default_noroot_data );
 }
 
-extern boolean_t PE_get_hotkey( unsigned char key )
+extern boolean_t PE_get_hotkey( __unused unsigned char key )
 {
     return (FALSE);
 }
@@ -272,21 +279,22 @@ void PE_call_timebase_callback(void)
 }
 
 /*
- * map the framebuffer into kernel vm and return the (virtual)
- * address.
+ * The default (non-functional) PE_poll_input handler.
  */
-static vm_offset_t
-mapframebuffer( caddr_t physaddr,  /* start of framebuffer */
-                int     length)    /* num bytes to map */
+static int
+PE_stub_poll_input(__unused unsigned int options, char * c)
 {
-    vm_offset_t vmaddr;
+    *c = 0xff;
+    return 1;  /* 0 for success, 1 for unsupported */
+}
+
+/*
+ * Called by the kernel debugger to poll for keyboard input.
+ * Keyboard drivers may replace the default stub function
+ * with their polled-mode input function.
+ */
+int (*PE_poll_input)(unsigned int options, char * c)
+       = PE_stub_poll_input;
 
-       if (physaddr != (caddr_t)trunc_page(physaddr))
-        panic("Framebuffer not on page boundary");
 
-       vmaddr = io_map((vm_offset_t)physaddr, length);
-       if (vmaddr == 0)
-        panic("can't alloc VM for framebuffer");
 
-    return vmaddr;
-}