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ALSA: hda - hdmi: Add HBR bitstreaming support for ATI/AMD HDMI codecs 

ATI/AMD HDMI codecs do not include standard HDA HDMI HBR support (which
is required for bitstreaming DTS-HD and Dolby TrueHD), instead they have
custom verbs for checking and enabling it.

Add support for the ATI/AMD HDMI HBR verbs.

The specification is available at:
http://www.x.org/docs/AMD/AMD_HDA_verbs_v2.pdf

v2: adapted to hdmi_ops infrastructure

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Peter Frühberger <fritsch@xbmc.org> # v1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Anssi Hannula 2013-10-24 21:10:37 +03:00 committed by Takashi Iwai
parent 89250f8464
commit 461cf6b39d
1 changed files with 35 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
sound/pci/hda/patch_hdmi.c
View File

@ -2799,6 +2799,7 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
#define ATI_VERB_SET_MULTICHANNEL_23 0x778
#define ATI_VERB_SET_MULTICHANNEL_45 0x779
#define ATI_VERB_SET_MULTICHANNEL_67 0x77a
#define ATI_VERB_SET_HBR_CONTROL 0x77c
#define ATI_VERB_SET_MULTICHANNEL_1 0x785
#define ATI_VERB_SET_MULTICHANNEL_3 0x786
#define ATI_VERB_SET_MULTICHANNEL_5 0x787
@ -2810,6 +2811,7 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
#define ATI_VERB_GET_MULTICHANNEL_23 0xf78
#define ATI_VERB_GET_MULTICHANNEL_45 0xf79
#define ATI_VERB_GET_MULTICHANNEL_67 0xf7a
#define ATI_VERB_GET_HBR_CONTROL 0xf7c
#define ATI_VERB_GET_MULTICHANNEL_1 0xf85
#define ATI_VERB_GET_MULTICHANNEL_3 0xf86
#define ATI_VERB_GET_MULTICHANNEL_5 0xf87
@ -2821,6 +2823,9 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
#define ATI_MULTICHANNEL_MODE_PAIRED 0
#define ATI_MULTICHANNEL_MODE_SINGLE 1
#define ATI_HBR_CAPABLE 0x01
#define ATI_HBR_ENABLE 0x10
static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
unsigned char *buf, int *eld_size)
{
@ -3015,6 +3020,35 @@ static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_all
WARN_ON(count != channels);
}
static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
bool hbr)
{
int hbr_ctl, hbr_ctl_new;
hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
if (hbr_ctl & ATI_HBR_CAPABLE) {
if (hbr)
hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
else
hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
snd_printdd("atihdmi_pin_hbr_setup: "
"NID=0x%x, %shbr-ctl=0x%x\n",
pin_nid,
hbr_ctl == hbr_ctl_new ? "" : "new-",
hbr_ctl_new);
if (hbr_ctl != hbr_ctl_new)
snd_hda_codec_write(codec, pin_nid, 0,
ATI_VERB_SET_HBR_CONTROL,
hbr_ctl_new);
} else if (hbr)
return -EINVAL;
return 0;
}
static int atihdmi_init(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
@ -3060,6 +3094,7 @@ static int patch_atihdmi(struct hda_codec *codec)
spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
if (!has_amd_full_remap_support(codec)) {
/* override to ATI/AMD-specific versions with pairwise mapping */