From c4db02fb9289235a0875c6226fe7fd3dd18adf55 Mon Sep 17 00:00:00 2001
From: Dylan Reid <dgreid@chromium.org>
Date: Fri, 16 Dec 2011 10:37:05 -0800
Subject: Add beep for x86 chormeos.

Implement the VbExBeep function so that the DEV screen can beep.
Much of this code was coppied from coreboot.

BUG=chrome-os-partner:7114
TEST=manual, check that Stumpy beeps on DEV screen timeout and when
booting from USB with dev_boot_usb=0.

Change-Id: Icd4eabb0b10cc3d226db71e6a2b52d3ed7eb25ef
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/13110
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
---
 lib/vbexport/utility.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'lib')

diff --git a/lib/vbexport/utility.c b/lib/vbexport/utility.c
index 6bc53caed1..90a94be76b 100644
--- a/lib/vbexport/utility.c
+++ b/lib/vbexport/utility.c
@@ -16,6 +16,7 @@
 #include <common.h>
 #include <malloc.h>
 #include <chromeos/common.h>
+#include <chromeos/hda_codec.h>
 #include <chromeos/power_management.h>
 
 /* Import the definition of vboot_wrapper interfaces. */
@@ -89,10 +90,17 @@ void VbExSleepMs(uint32_t msec)
 
 VbError_t VbExBeep(uint32_t msec, uint32_t frequency)
 {
-	/* TODO Implement it later. */
-	VbExSleepMs(msec);
-	VBDEBUG("Beep!\n");
-	return VBERROR_NO_SOUND;
+	if (frequency)
+		enable_beep();
+	else
+		disable_beep();
+
+	if (msec > 0) {
+		VbExSleepMs(msec);
+		disable_beep();
+	}
+
+	return VBERROR_SUCCESS;
 }
 
 int Memcmp(const void *src1, const void *src2, size_t n)
-- 
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