[src/trunk]: src/sys/external/bsd/drm2/include/linux hdmi_audio_infoframe_pac...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/23e50fb83bfa
branches:  trunk
changeset: 811775:23e50fb83bfa
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Nov 14 18:04:05 2015 +0000

description:
hdmi_audio_infoframe_pack: Initialize the entire output buffer.
hdmi_infoframe_checksum: Fix HDMI infoframe checksum calculations.

diffstat:

 sys/external/bsd/drm2/include/linux/hdmi.h |  12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diffs (33 lines):

diff -r cd5c846299a6 -r 23e50fb83bfa sys/external/bsd/drm2/include/linux/hdmi.h
--- a/sys/external/bsd/drm2/include/linux/hdmi.h        Sat Nov 14 16:25:48 2015 +0000
+++ b/sys/external/bsd/drm2/include/linux/hdmi.h        Sat Nov 14 18:04:05 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: hdmi.h,v 1.5 2014/11/24 01:27:07 riastradh Exp $       */
+/*     $NetBSD: hdmi.h,v 1.6 2015/11/14 18:04:05 jmcneill Exp $        */
 
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -217,7 +217,7 @@
        uint8_t checksum = 0;
 
        while (length--)
-               checksum = *p++;
+               checksum += *p++;
 
        p = buf;
        p[3] = (256 - checksum);
@@ -283,7 +283,13 @@
 
        p[4] = __SHIFTIN(frame->downmix_inhibit? 1 : 0, __BIT(7));
 
-       /* XXX p[5], p[6], p[7], p[8], p[9]?  */
+       /* PB6 to PB10 are reserved */
+       p[5] = 0;
+       p[6] = 0;
+       p[7] = 0;
+       p[8] = 0;
+       p[9] = 0;
+
        CTASSERT(HDMI_AUDIO_INFOFRAME_SIZE == 10);
 
        hdmi_infoframe_checksum(buf, length);