libreboot/projects/vboot/patches/0002-firmware-Text-based-screen-display-in-priority.patch

From 5f402b9d365dbc17ea68803aeb9a95da01708b9f Mon Sep 17 00:00:00 2001
From: Paul Kocialkowski <contact@paulk.fr>
Date: Mon, 10 Aug 2015 22:44:50 +0200
Subject: [PATCH 2/7] firmware: Text-based screen display in priority

This allows showing text-based screen displays before looking at the GBB bitmaps
since those encourage the use of non-free software (Chrome OS) and don't display
enough information to the user.

Change-Id: I1dc454cd5de1cf096a15957832a8114d4f758eac
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 firmware/lib/vboot_display.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/firmware/lib/vboot_display.c b/firmware/lib/vboot_display.c
index 1abed92..50a2e54 100644
--- a/firmware/lib/vboot_display.c
+++ b/firmware/lib/vboot_display.c
@@ -335,20 +335,18 @@ static VbError_t VbDisplayScreenLegacy(VbCommonParams *cparams, uint32_t screen,
 	/* If the screen is blank, turn off the backlight; else turn it on. */
 	VbExDisplayBacklight(VB_SCREEN_BLANK == screen ? 0 : 1);
 
-	/* Look in the GBB first */
-	if (VBERROR_SUCCESS == VbDisplayScreenFromGBB(cparams, screen,
-						      vncptr, locale))
+	/* Display default first */
+	if (VBERROR_SUCCESS == VbExDisplayScreen(screen, locale))
 		return VBERROR_SUCCESS;
 
-	/* If screen wasn't in the GBB bitmaps, fall back to a default */
-	return VbExDisplayScreen(screen, locale);
+	/* If default doesn't have anything to show, fall back to GBB bitmaps */
+	return VbDisplayScreenFromGBB(cparams, screen, vncptr, locale);
 }
 
 VbError_t VbDisplayScreen(VbCommonParams *cparams, uint32_t screen,
 			  int force, VbNvContext *vncptr)
 {
 	uint32_t locale;
-	GoogleBinaryBlockHeader *gbb = cparams->gbb;
 	VbError_t rv;
 
 	/* If requested screen is the same as the current one, we're done. */
@@ -358,11 +356,8 @@ VbError_t VbDisplayScreen(VbCommonParams *cparams, uint32_t screen,
 	/* Read the locale last saved */
 	VbNvGet(vncptr, VBNV_LOCALIZATION_INDEX, &locale);
 
-	if (gbb->bmpfv_size == 0)
-		rv = VbExDisplayScreen(screen, locale);
-	else
-		rv = VbDisplayScreenLegacy(cparams, screen, force, vncptr,
-					   locale);
+	rv = VbDisplayScreenLegacy(cparams, screen, force, vncptr,
+				   locale);
 
 	if (rv == VBERROR_SUCCESS)
 		/* Keep track of the currently displayed screen */
-- 
2.10.2