1 files changed, 81 insertions, 0 deletions
diff --git a/firmware/lib/ec_sync_all.c b/firmware/lib/ec_sync_all.c
new file mode 100644
index 00000000..2ad61035
--- /dev/null
+++ b/firmware/lib/ec_sync_all.c
@@ -0,0 +1,81 @@
+/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * EC software sync routines for vboot
+ */
+
+#include "2sysincludes.h"
+#include "2common.h"
+#include "2misc.h"
+#include "2nvstorage.h"
+
+#include "sysincludes.h"
+#include "ec_sync.h"
+#include "vboot_api.h"
+#include "vboot_common.h"
+#include "vboot_display.h"
+#include "vboot_kernel.h"
+
+VbError_t ec_sync_all(struct vb2_context *ctx, struct VbCommonParams *cparams)
+{
+	VbSharedDataHeader *shared =
+		(VbSharedDataHeader *)cparams->shared_data_blob;
+
+	/* Do EC sync phase 1; this determines if we need an update */
+	VbError_t phase1_rv = ec_sync_phase1(ctx, cparams);
+	int need_wait_screen = ec_will_update_slowly(ctx, cparams);
+
+	/*
+	 * Check if we need to reboot to load the VGA Option ROM before we can
+	 * display the WAIT screen.
+	 *
+	 * Do this before we check if ec_sync_phase1() requires a reboot for
+	 * some other reason, since there's no reason to reboot twice.
+	 */
+	int reboot_for_oprom = (need_wait_screen &&
+				shared->flags & VBSD_OPROM_MATTERS &&
+				!(shared->flags & VBSD_OPROM_LOADED));
+	if (reboot_for_oprom) {
+		VB2_DEBUG("%s: Reboot to load VGA Option ROM\n", __func__);
+		vb2_nv_set(ctx, VB2_NV_OPROM_NEEDED, 1);
+	}
+
+	/* Reboot if phase 1 needed it, or if we need to load VGA Option ROM */
+	if (phase1_rv)
+		return VBERROR_EC_REBOOT_TO_RO_REQUIRED;
+	if (reboot_for_oprom)
+		return VBERROR_VGA_OPROM_MISMATCH;
+
+	/* Display the wait screen if we need it */
+	if (need_wait_screen) {
+		VB2_DEBUG("%s: EC is slow. Show WAIT screen.\n", __func__);
+		VbDisplayScreen(ctx, cparams, VB_SCREEN_WAIT, 0);
+	}
+
+	/*
+	 * Do EC sync phase 2; this applies the update and/or jumps to the
+	 * correct EC image.
+	 */
+	VbError_t rv = ec_sync_phase2(ctx, cparams);
+	if (rv)
+		return rv;
+
+	/*
+	 * Reboot to unload VGA Option ROM if:
+	 * - we displayed the wait screen
+	 * - the system has slow EC update flag set
+	 * - the VGA Option ROM was needed and loaded
+	 * - the system is NOT in developer mode (that'll also need the ROM)
+	 */
+	if (need_wait_screen &&
+	    (shared->flags & VBSD_OPROM_MATTERS) &&
+	    (shared->flags & VBSD_OPROM_LOADED) &&
+	    !(shared->flags & VBSD_BOOT_DEV_SWITCH_ON)) {
+		VB2_DEBUG("%s: Reboot to unload VGA Option ROM\n", __func__);
+		vb2_nv_set(ctx, VB2_NV_OPROM_NEEDED, 0);
+		return VBERROR_VGA_OPROM_MISMATCH;
+	}
+
+	return VBERROR_SUCCESS;
+}