diff options
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 110 |
1 files changed, 73 insertions, 37 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index cb997ca..1f4ae1a 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -84,13 +84,25 @@ struct hdmi_audio_infoframe { u8 ver; /* 0x01 */ u8 len; /* 0x0a */ - u8 checksum; /* PB0 */ + u8 checksum; + u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */ u8 SS01_SF24; u8 CXT04; u8 CA; u8 LFEPBL01_LSV36_DM_INH7; - u8 reserved[5]; /* PB6 - PB10 */ +}; + +struct dp_audio_infoframe { + u8 type; /* 0x84 */ + u8 len; /* 0x1b */ + u8 ver; /* 0x11 << 2 */ + + u8 CC02_CT47; /* match with HDMI infoframe from this on */ + u8 SS01_SF24; + u8 CXT04; + u8 CA; + u8 LFEPBL01_LSV36_DM_INH7; }; /* @@ -194,7 +206,7 @@ static int hdmi_channel_mapping[0x32][8] = { * This is an ordered list! * * The preceding ones have better chances to be selected by - * hdmi_setup_channel_allocation(). + * hdmi_channel_allocation(). */ static struct cea_channel_speaker_allocation channel_allocations[] = { /* channel: 7 6 5 4 3 2 1 0 */ @@ -371,14 +383,14 @@ static void init_channel_allocations(void) * * TODO: it could select the wrong CA from multiple candidates. */ -static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid, - struct hdmi_audio_infoframe *ai) +static int hdmi_channel_allocation(struct hda_codec *codec, hda_nid_t nid, + int channels) { struct hdmi_spec *spec = codec->spec; struct hdmi_eld *eld; int i; + int ca = 0; int spk_mask = 0; - int channels = 1 + (ai->CC02_CT47 & 0x7); char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; /* @@ -416,16 +428,16 @@ static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid, if (channels == channel_allocations[i].channels && (spk_mask & channel_allocations[i].spk_mask) == channel_allocations[i].spk_mask) { - ai->CA = channel_allocations[i].ca_index; + ca = channel_allocations[i].ca_index; break; } } snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf)); snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n", - ai->CA, channels, buf); + ca, channels, buf); - return ai->CA; + return ca; } static void hdmi_debug_channel_mapping(struct hda_codec *codec, @@ -447,10 +459,9 @@ static void hdmi_debug_channel_mapping(struct hda_codec *codec, static void hdmi_setup_channel_mapping(struct hda_codec *codec, hda_nid_t pin_nid, - struct hdmi_audio_infoframe *ai) + int ca) { int i; - int ca = ai->CA; int err; if (hdmi_channel_mapping[ca][1] == 0) { @@ -547,41 +558,37 @@ static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid) #endif } -static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *ai) +static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai) { - u8 *bytes = (u8 *)ai; + u8 *bytes = (u8 *)hdmi_ai; u8 sum = 0; int i; - ai->checksum = 0; + hdmi_ai->checksum = 0; - for (i = 0; i < sizeof(*ai); i++) + for (i = 0; i < sizeof(*hdmi_ai); i++) sum += bytes[i]; - ai->checksum = -sum; + hdmi_ai->checksum = -sum; } static void hdmi_fill_audio_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, - struct hdmi_audio_infoframe *ai) + u8 *dip, int size) { - u8 *bytes = (u8 *)ai; int i; hdmi_debug_dip_size(codec, pin_nid); hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */ - 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, bytes[i]); + for (i = 0; i < size; i++) + hdmi_write_dip_byte(codec, pin_nid, dip[i]); } static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid, - struct hdmi_audio_infoframe *ai) + u8 *dip, int size) { - u8 *bytes = (u8 *)ai; u8 val; int i; @@ -590,10 +597,10 @@ static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid, return false; hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); - for (i = 0; i < sizeof(*ai); i++) { + for (i = 0; i < size; i++) { val = snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_DATA, 0); - if (val != bytes[i]) + if (val != dip[i]) return false; } @@ -605,15 +612,13 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, { struct hdmi_spec *spec = codec->spec; hda_nid_t pin_nid; + int channels = substream->runtime->channels; + int ca; int i; - struct hdmi_audio_infoframe ai = { - .type = 0x84, - .ver = 0x01, - .len = 0x0a, - .CC02_CT47 = substream->runtime->channels - 1, - }; + u8 ai[max(sizeof(struct hdmi_audio_infoframe), + sizeof(struct dp_audio_infoframe))]; - hdmi_setup_channel_allocation(codec, nid, &ai); + ca = hdmi_channel_allocation(codec, nid, channels); for (i = 0; i < spec->num_pins; i++) { if (spec->pin_cvt[i] != nid) @@ -622,14 +627,45 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, continue; pin_nid = spec->pin[i]; - if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) { + + memset(ai, 0, sizeof(ai)); + if (spec->sink_eld[i].conn_type == 0) { /* HDMI */ + struct hdmi_audio_infoframe *hdmi_ai; + + hdmi_ai = (struct hdmi_audio_infoframe *)ai; + hdmi_ai->type = 0x84; + hdmi_ai->ver = 0x01; + hdmi_ai->len = 0x0a; + hdmi_ai->CC02_CT47 = channels - 1; + hdmi_checksum_audio_infoframe(hdmi_ai); + } else if (spec->sink_eld[i].conn_type == 1) { /* DisplayPort */ + struct dp_audio_infoframe *dp_ai; + + dp_ai = (struct dp_audio_infoframe *)ai; + dp_ai->type = 0x84; + dp_ai->len = 0x1b; + dp_ai->ver = 0x11 << 2; + dp_ai->CC02_CT47 = channels - 1; + } else { + snd_printd("HDMI: unknown connection type at pin %d\n", + pin_nid); + continue; + } + + /* + * sizeof(ai) is used instead of sizeof(*hdmi_ai) or + * sizeof(*dp_ai) to avoid partial match/update problems when + * the user switches between HDMI/DP monitors. + */ + if (!hdmi_infoframe_uptodate(codec, pin_nid, ai, sizeof(ai))) { snd_printdd("hdmi_setup_audio_infoframe: " "cvt=%d pin=%d channels=%d\n", nid, pin_nid, - substream->runtime->channels); - hdmi_setup_channel_mapping(codec, pin_nid, &ai); + channels); + hdmi_setup_channel_mapping(codec, pin_nid, ca); hdmi_stop_infoframe_trans(codec, pin_nid); - hdmi_fill_audio_infoframe(codec, pin_nid, &ai); + hdmi_fill_audio_infoframe(codec, pin_nid, + ai, sizeof(ai)); hdmi_start_infoframe_trans(codec, pin_nid); } } |