started the PXE UNDI network device support

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19127 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/boot/platform/pxe_ia32/Jamfile

@@ -22,7 +22,6 @@ local bios_ia32_src =
 	bios.S
 	console.cpp
 	serial.cpp
-	devices.cpp
 	keyboard.cpp
 	menu.cpp
 	mmu.cpp
@@ -36,6 +35,9 @@ local bios_ia32_src =
 KernelMergeObject boot_platform_pxe_ia32.o :
 	pxe_stage2.S
 	smp_trampoline.S
+	devices.cpp
+	network.cpp
+	pxe_undi.cpp
 	$(bios_ia32_src)
 	
 	# generic

src/system/boot/platform/pxe_ia32/devices.cpp

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2003-2006, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Copyright 2006, Marcus Overhagen, marcus@overhagen.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include "bios.h"
+#include "pxe_undi.h"
+
+#include <KernelExport.h>
+#include <boot/platform.h>
+#include <boot/vfs.h>
+#include <boot/stdio.h>
+#include <boot/stage2.h>
+#include <boot/net/NetStack.h>
+#include <boot/net/RemoteDisk.h>
+#include <util/kernel_cpp.h>
+
+#include <string.h>
+
+#define TRACE_DEVICES
+#ifdef TRACE_DEVICES
+#	define TRACE(x...) dprintf(x)
+#else
+#	define TRACE(x...)
+#endif
+
+
+status_t 
+platform_add_boot_device(struct stage2_args *args, NodeList *devicesList)
+{
+	TRACE("platform_add_boot_device\n");
+
+	status_t error = net_stack_init();
+	if (error != B_OK)
+		return error;
+
+	// init a remote disk, if possible
+	RemoteDisk *remoteDisk = RemoteDisk::FindAnyRemoteDisk();
+	if (!remoteDisk)
+		return B_ENTRY_NOT_FOUND;
+
+	devicesList->Add(remoteDisk);
+	return B_OK;
+}
+
+
+status_t
+platform_get_boot_partition(struct stage2_args *args, Node *device,
+	NodeList *list, boot::Partition **_partition)
+{
+	TRACE("platform_get_boot_partition\n");
+	NodeIterator iterator = list->GetIterator();
+	boot::Partition *partition = NULL;
+	while ((partition = (boot::Partition *)iterator.Next()) != NULL) {
+		// ToDo: just take the first partition for now
+		*_partition = partition;
+		return B_OK;
+	}
+
+	return B_ENTRY_NOT_FOUND;
+}
+
+
+status_t
+platform_add_block_devices(stage2_args *args, NodeList *devicesList)
+{
+	TRACE("platform_add_block_devices\n");
+	return B_OK;
+}
+
+
+status_t 
+platform_register_boot_device(Node *device)
+{
+	TRACE("platform_register_boot_device\n");
+	disk_identifier &disk = gKernelArgs.boot_disk.identifier;
+
+	disk.bus_type = UNKNOWN_BUS;
+	disk.device_type = UNKNOWN_DEVICE;
+	disk.device.unknown.size = device->Size();
+
+	return B_OK;
+}		

src/system/boot/platform/pxe_ia32/network.cpp

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2006, Marcus Overhagen <marcus@overhagen.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <new>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <OS.h>
+#include <KernelExport.h>
+
+#include <boot/net/Ethernet.h>
+#include <boot/net/NetStack.h>
+
+#include "pxe_undi.h"
+
+#define TRACE_NETWORK
+#ifdef TRACE_NETWORK
+#	define TRACE(x...) dprintf(x)
+#else
+#	define TRACE(x...)
+#endif
+
+
+status_t
+platform_net_stack_init()
+{
+	TRACE("platform_net_stack_init\n");
+
+	pxe_undi_init();
+
+	return B_OK;
+}

src/system/boot/platform/pxe_ia32/pxe_undi.cpp

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2006, Marcus Overhagen <marcus@overhagen.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <OS.h>
+#include <KernelExport.h>
+
+#include "pxe_undi.h"
+
+#define TRACE_UNDI
+#ifdef TRACE_UNDI
+#	define TRACE(x...) dprintf(x)
+#else
+#	define TRACE(x...)
+#endif
+
+
+struct pxe_struct 
+{
+	uint32	signature;
+};
+
+pxe_struct *gPxeData;
+
+
+pxe_struct *
+pxe_undi_find_data()
+{
+	pxe_struct *data = NULL;
+	for (char *addr = (char *)0x8D000; addr < (char *)0xA0000; addr += 16) {
+		if (*(uint32 *)addr == 'EXP!' /* '!PXE' */) {
+			TRACE("found !PXE at %p\n", addr);
+			data = (pxe_struct *)addr;
+			break;
+		}
+	}
+	return data;
+}
+
+
+void 
+pxe_undi_init()
+{
+	TRACE("pxe_undi_init\n");
+
+	gPxeData = pxe_undi_find_data();
+	if (!gPxeData)
+		panic("can't find !PXE structure");
+
+
+}

src/system/boot/platform/pxe_ia32/pxe_undi.h

@@ -0,0 +1,6 @@
+/*
+ * Copyright 2006, Marcus Overhagen <marcus@overhagen.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+void pxe_undi_init();