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Enable High Bit Rate (HBR) Encoded Packet Type (EPT), if supported

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(HDMI and HBR bits set) and needed (AC3 format used with 8 channels).
This should allow DTS-HD/TrueHD pass-through with rates above 6.144Mbps.

MFC after:	2 months
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2012-01-24 17:31:27 +00:00
parent 8d74af3668
commit 53b95d1799
1 changed files with 15 additions and 0 deletions
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15
sys/dev/sound/pci/hda/hdaa.c
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@ -1506,6 +1506,21 @@ hdaa_audio_setup(struct hdaa_chan *ch)
>> (k * 4)) & 0xf) << 4) | k));
}
/*
* Enable High Bit Rate (HBR) Encoded Packet Type
* (EPT), if supported and needed (8ch data).
*/
if (HDA_PARAM_PIN_CAP_HDMI(wp->wclass.pin.cap) &&
HDA_PARAM_PIN_CAP_HBR(wp->wclass.pin.cap)) {
wp->wclass.pin.ctrl &=
~HDA_CMD_SET_PIN_WIDGET_CTRL_VREF_ENABLE_MASK;
if ((ch->fmt & AFMT_AC3) && (cchn == 8))
wp->wclass.pin.ctrl |= 0x03;
hda_command(ch->devinfo->dev,
HDA_CMD_SET_PIN_WIDGET_CTRL(0, nid,
wp->wclass.pin.ctrl));
}
/* Stop audio infoframe transmission. */
hda_command(ch->devinfo->dev,
HDA_CMD_SET_HDMI_DIP_INDEX(0, nid, 0x00));