Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / i386 / drivers / net / undionly.c

diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c
new file mode 100644 (file)
index 0000000..028fac5
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ipxe/device.h>
+#include <ipxe/init.h>
+#include <ipxe/pci.h>
+#include <undi.h>
+#include <undinet.h>
+#include <undipreload.h>
+
+/** @file
+ *
+ * "Pure" UNDI driver
+ *
+ * This is the UNDI driver without explicit support for PCI or any
+ * other bus type.  It is capable only of using the preloaded UNDI
+ * device.  It must not be combined in an image with any other
+ * drivers.
+ *
+ * If you want a PXE-loadable image that contains only the UNDI
+ * driver, build "bin/undionly.kpxe".
+ *
+ * If you want any other image format, or any other drivers in
+ * addition to the UNDI driver, build e.g. "bin/undi.dsk".
+ */
+
+/**
+ * Probe UNDI root bus
+ *
+ * @v rootdev          UNDI bus root device
+ *
+ * Scans the UNDI bus for devices and registers all devices it can
+ * find.
+ */
+static int undibus_probe ( struct root_device *rootdev ) {
+       struct undi_device *undi = &preloaded_undi;
+       int rc;
+
+       /* Check for a valie preloaded UNDI device */
+       if ( ! undi->entry.segment ) {
+               DBG ( "No preloaded UNDI device found!\n" );
+               return -ENODEV;
+       }
+
+       /* Add to device hierarchy */
+       undi->dev.driver_name = "undionly";
+       if ( undi->pci_busdevfn != UNDI_NO_PCI_BUSDEVFN ) {
+               undi->dev.desc.bus_type = BUS_TYPE_PCI;
+               undi->dev.desc.location = undi->pci_busdevfn;
+               undi->dev.desc.vendor = undi->pci_vendor;
+               undi->dev.desc.device = undi->pci_device;
+               snprintf ( undi->dev.name, sizeof ( undi->dev.name ),
+                          "UNDI-PCI%02x:%02x.%x",
+                          PCI_BUS ( undi->pci_busdevfn ),
+                          PCI_SLOT ( undi->pci_busdevfn ),
+                          PCI_FUNC ( undi->pci_busdevfn ) );
+       } else if ( undi->isapnp_csn != UNDI_NO_ISAPNP_CSN ) {
+               undi->dev.desc.bus_type = BUS_TYPE_ISAPNP;
+               snprintf ( undi->dev.name, sizeof ( undi->dev.name ),
+                          "UNDI-ISAPNP" );
+       }
+       undi->dev.parent = &rootdev->dev;
+       list_add ( &undi->dev.siblings, &rootdev->dev.children);
+       INIT_LIST_HEAD ( &undi->dev.children );
+
+       /* Create network device */
+       if ( ( rc = undinet_probe ( undi ) ) != 0 )
+               goto err;
+
+       return 0;
+
+ err:
+       list_del ( &undi->dev.siblings );
+       return rc;
+}
+
+/**
+ * Remove UNDI root bus
+ *
+ * @v rootdev          UNDI bus root device
+ */
+static void undibus_remove ( struct root_device *rootdev __unused ) {
+       struct undi_device *undi = &preloaded_undi;
+
+       undinet_remove ( undi );
+       list_del ( &undi->dev.siblings );
+}
+
+/** UNDI bus root device driver */
+static struct root_driver undi_root_driver = {
+       .probe = undibus_probe,
+       .remove = undibus_remove,
+};
+
+/** UNDI bus root device */
+struct root_device undi_root_device __root_device = {
+       .dev = { .name = "UNDI" },
+       .driver = &undi_root_driver,
+};
+
+/**
+ * Prepare for exit
+ *
+ * @v booting          System is shutting down for OS boot
+ */
+static void undionly_shutdown ( int booting ) {
+       /* If we are shutting down to boot an OS, clear the "keep PXE
+        * stack" flag.
+        */
+       if ( booting )
+               preloaded_undi.flags &= ~UNDI_FL_KEEP_ALL;
+}
+
+struct startup_fn startup_undionly __startup_fn ( STARTUP_LATE ) = {
+       .shutdown = undionly_shutdown,
+};