1 files changed, 113 insertions, 0 deletions
diff --git a/roms/ipxe/src/drivers/net/efi/snp.c b/roms/ipxe/src/drivers/net/efi/snp.c
new file mode 100644
index 00000000..2b5fc861
--- /dev/null
+++ b/roms/ipxe/src/drivers/net/efi/snp.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2014 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 <errno.h>
+#include <ipxe/efi/efi.h>
+#include <ipxe/efi/efi_driver.h>
+#include <ipxe/efi/efi_snp.h>
+#include "snpnet.h"
+#include "nii.h"
+
+/** @file
+ *
+ * SNP driver
+ *
+ */
+
+/**
+ * Check to see if driver supports a device
+ *
+ * @v device		EFI device handle
+ * @ret rc		Return status code
+ */
+static int snp_supported ( EFI_HANDLE device ) {
+	EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
+	EFI_STATUS efirc;
+
+	/* Check that this is not a device we are providing ourselves */
+	if ( find_snpdev ( device ) != NULL ) {
+		DBGCP ( device, "SNP %p %s is provided by this binary\n",
+			device, efi_handle_name ( device ) );
+		return -ENOTTY;
+	}
+
+	/* Test for presence of simple network protocol */
+	if ( ( efirc = bs->OpenProtocol ( device,
+					  &efi_simple_network_protocol_guid,
+					  NULL, efi_image_handle, device,
+					  EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){
+		DBGCP ( device, "SNP %p %s is not an SNP device\n",
+			device, efi_handle_name ( device ) );
+		return -EEFI ( efirc );
+	}
+	DBGC ( device, "SNP %p %s is an SNP device\n",
+	       device, efi_handle_name ( device ) );
+
+	return 0;
+}
+
+/**
+ * Check to see if driver supports a device
+ *
+ * @v device		EFI device handle
+ * @ret rc		Return status code
+ */
+static int nii_supported ( EFI_HANDLE device ) {
+	EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
+	EFI_STATUS efirc;
+
+	/* Check that this is not a device we are providing ourselves */
+	if ( find_snpdev ( device ) != NULL ) {
+		DBGCP ( device, "NII %p %s is provided by this binary\n",
+			device, efi_handle_name ( device ) );
+		return -ENOTTY;
+	}
+
+	/* Test for presence of NII protocol */
+	if ( ( efirc = bs->OpenProtocol ( device,
+					  &efi_nii31_protocol_guid,
+					  NULL, efi_image_handle, device,
+					  EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){
+		DBGCP ( device, "NII %p %s is not an NII device\n",
+			device, efi_handle_name ( device ) );
+		return -EEFI ( efirc );
+	}
+	DBGC ( device, "NII %p %s is an NII device\n",
+	       device, efi_handle_name ( device ) );
+
+	return 0;
+}
+
+/** EFI SNP driver */
+struct efi_driver snp_driver __efi_driver ( EFI_DRIVER_NORMAL ) = {
+	.name = "SNP",
+	.supported = snp_supported,
+	.start = snpnet_start,
+	.stop = snpnet_stop,
+};
+
+/** EFI NII driver */
+struct efi_driver nii_driver __efi_driver ( EFI_DRIVER_NORMAL ) = {
+	.name = "NII",
+	.supported = nii_supported,
+	.start = nii_start,
+	.stop = nii_stop,
+};