And make it right when called for more than one times.
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
---
sound/pci/hda/patch_intelhdmi.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
--- sound-2.6.orig/sound/pci/hda/patch_intelhdmi.c 2009-11-02 16:11:22.000000000 +0800
+++ sound-2.6/sound/pci/hda/patch_intelhdmi.c 2009-11-02 16:27:42.000000000 +0800
@@ -508,24 +508,35 @@ static void hdmi_clear_dip_buffers(struc
#endif
}
+static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *ai)
+{
+ u8 *bytes = (u8 *)ai;
+ u8 sum = 0;
+ int i;
+
+ ai->checksum = 0;
+
+ for (i = 0; i < sizeof(*ai); i++)
+ sum += bytes[i];
+
+ ai->checksum = - sum;
+}
+
static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
hda_nid_t pin_nid,
struct hdmi_audio_infoframe *ai)
{
- u8 *params = (u8 *)ai;
- u8 sum = 0;
+ u8 *bytes = (u8 *)ai;
int i;
hdmi_debug_dip_size(codec, pin_nid);
hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
- for (i = 0; i < sizeof(*ai); i++)
- sum += params[i];
- ai->checksum = - sum;
+ hdmi_checksum_audio_infoframe(ai);
hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
for (i = 0; i < sizeof(*ai); i++)
- hdmi_write_dip_byte(codec, pin_nid, params[i]);
+ hdmi_write_dip_byte(codec, pin_nid, bytes[i]);
}
/*
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