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>
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 0307ae8..f6a9760 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2799,6 +2799,7 @@
#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 @@
#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 @@
#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 @@
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 @@
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 */