From 741adbf4fdb4ef72245f9373a2980ecade41f3f5 Mon Sep 17 00:00:00 2001
From: Paul Kocialkowski <contact@paulk.fr>
Date: Mon, 10 Aug 2015 22:59:50 +0200
Subject: [PATCH 4/7] firmware: Hold key combination in developer mode

This binds the Ctrl + H key combination to hold the developer mode screen.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 firmware/lib/vboot_api_kernel.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/firmware/lib/vboot_api_kernel.c b/firmware/lib/vboot_api_kernel.c
index 312014b..e191137 100644
--- a/firmware/lib/vboot_api_kernel.c
+++ b/firmware/lib/vboot_api_kernel.c
@@ -251,7 +251,7 @@ VbError_t VbBootDeveloper(VbCommonParams *cparams, LoadKernelParams *p)
 	GoogleBinaryBlockHeader *gbb = cparams->gbb;
 	VbSharedDataHeader *shared =
 		(VbSharedDataHeader *)cparams->shared_data_blob;
-	uint32_t allow_usb = 0, allow_legacy = 0, ctrl_d_pressed = 0;
+	uint32_t allow_usb = 0, allow_legacy = 0, ctrl_d_pressed = 0, hold = 0;
 	VbAudioContext *audio = 0;
 
 	VBDEBUG(("Entering %s()\n", __func__));
@@ -364,6 +364,12 @@ VbError_t VbBootDeveloper(VbCommonParams *cparams, LoadKernelParams *p)
 			ctrl_d_pressed = 1;
 			goto fallout;
 			break;
+		case 0x08:
+			/* Ctrl+H = hold */
+			VBDEBUG(("VbBootDeveloper() - "
+				 "hold developer mode screen\n"));
+			hold = 1;
+			break;
 		case 0x0c:
 			VBDEBUG(("VbBootDeveloper() - "
 				 "user pressed Ctrl+L; Try legacy boot\n"));
@@ -430,7 +436,7 @@ VbError_t VbBootDeveloper(VbCommonParams *cparams, LoadKernelParams *p)
 			VbCheckDisplayKey(cparams, key, &vnc);
 			break;
 		}
-	} while(VbAudioLooping(audio));
+	} while(hold || VbAudioLooping(audio));
 
  fallout:
 
-- 
1.9.1

