Merge tag 'asoc-v3.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
[pandora-kernel.git] / sound / pci / hda / patch_hdmi.c
index 24d82d6..3d8cd04 100644 (file)
@@ -44,6 +44,8 @@ static bool static_hdmi_pcm;
 module_param(static_hdmi_pcm, bool, 0644);
 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
 
+#define is_haswell(codec)  ((codec)->vendor_id == 0x80862807)
+
 struct hdmi_spec_per_cvt {
        hda_nid_t cvt_nid;
        int assigned;
@@ -67,6 +69,8 @@ struct hdmi_spec_per_pin {
        struct delayed_work work;
        struct snd_kcontrol *eld_ctl;
        int repoll_count;
+       bool setup; /* the stream has been set up by prepare callback */
+       int channels; /* current number of channels */
        bool non_pcm;
        bool chmap_set;         /* channel-map override by ALSA API? */
        unsigned char chmap[8]; /* ALSA API channel-map */
@@ -551,6 +555,17 @@ static int hdmi_channel_allocation(struct hdmi_eld *eld, int channels)
                }
        }
 
+       if (!ca) {
+               /* if there was no match, select the regular ALSA channel
+                * allocation with the matching number of channels */
+               for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
+                       if (channels == channel_allocations[i].channels) {
+                               ca = channel_allocations[i].ca_index;
+                               break;
+                       }
+               }
+       }
+
        snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
        snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
                    ca, channels, buf);
@@ -868,18 +883,24 @@ static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
        return true;
 }
 
-static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx,
-                                      bool non_pcm,
-                                      struct snd_pcm_substream *substream)
+static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
+                                      struct hdmi_spec_per_pin *per_pin,
+                                      bool non_pcm)
 {
-       struct hdmi_spec *spec = codec->spec;
-       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
        hda_nid_t pin_nid = per_pin->pin_nid;
-       int channels = substream->runtime->channels;
+       int channels = per_pin->channels;
        struct hdmi_eld *eld;
        int ca;
        union audio_infoframe ai;
 
+       if (!channels)
+               return;
+
+       if (is_haswell(codec))
+               snd_hda_codec_write(codec, pin_nid, 0,
+                                           AC_VERB_SET_AMP_GAIN_MUTE,
+                                           AMP_OUT_UNMUTE);
+
        eld = &per_pin->sink_eld;
        if (!eld->monitor_present)
                return;
@@ -1019,10 +1040,10 @@ static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
                hdmi_non_intrinsic_event(codec, res);
 }
 
-static void haswell_verify_pin_D0(struct hda_codec *codec,
+static void haswell_verify_D0(struct hda_codec *codec,
                hda_nid_t cvt_nid, hda_nid_t nid)
 {
-       int pwr, lamp, ramp;
+       int pwr;
 
        /* For Haswell, the converter 1/2 may keep in D3 state after bootup,
         * thus pins could only choose converter 0 for use. Make sure the
@@ -1038,25 +1059,6 @@ static void haswell_verify_pin_D0(struct hda_codec *codec,
                pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
                snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
        }
-
-       lamp = snd_hda_codec_read(codec, nid, 0,
-                                 AC_VERB_GET_AMP_GAIN_MUTE,
-                                 AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
-       ramp = snd_hda_codec_read(codec, nid, 0,
-                                 AC_VERB_GET_AMP_GAIN_MUTE,
-                                 AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
-       if (lamp != ramp) {
-               snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
-                                   AC_AMP_SET_RIGHT | AC_AMP_SET_OUTPUT | lamp);
-
-               lamp = snd_hda_codec_read(codec, nid, 0,
-                                 AC_VERB_GET_AMP_GAIN_MUTE,
-                                 AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
-               ramp = snd_hda_codec_read(codec, nid, 0,
-                                 AC_VERB_GET_AMP_GAIN_MUTE,
-                                 AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
-               snd_printd("Haswell HDMI audio: Mute after set on pin 0x%x: [0x%x 0x%x]\n", nid, lamp, ramp);
-       }
 }
 
 /*
@@ -1073,8 +1075,8 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
        int pinctl;
        int new_pinctl = 0;
 
-       if (codec->vendor_id == 0x80862807)
-               haswell_verify_pin_D0(codec, cvt_nid, pin_nid);
+       if (is_haswell(codec))
+               haswell_verify_D0(codec, cvt_nid, pin_nid);
 
        if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
                pinctl = snd_hda_codec_read(codec, pin_nid, 0,
@@ -1213,7 +1215,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
                            mux_idx);
 
        /* configure unused pins to choose other converters */
-       if (codec->vendor_id == 0x80862807)
+       if (is_haswell(codec))
                haswell_config_cvts(codec, pin_idx, mux_idx);
 
        snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
@@ -1330,6 +1332,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
                eld_changed = true;
        }
        if (update_eld) {
+               bool old_eld_valid = pin_eld->eld_valid;
                pin_eld->eld_valid = eld->eld_valid;
                eld_changed = pin_eld->eld_size != eld->eld_size ||
                              memcmp(pin_eld->eld_buffer, eld->eld_buffer,
@@ -1339,6 +1342,14 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
                               eld->eld_size);
                pin_eld->eld_size = eld->eld_size;
                pin_eld->info = eld->info;
+
+               /* Haswell-specific workaround: re-setup when the transcoder is
+                * changed during the stream playback
+                */
+               if (is_haswell(codec) &&
+                   eld->eld_valid && !old_eld_valid && per_pin->setup)
+                       hdmi_setup_audio_infoframe(codec, per_pin,
+                                                  per_pin->non_pcm);
        }
        mutex_unlock(&pin_eld->lock);
 
@@ -1378,7 +1389,7 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
        if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
                return 0;
 
-       if (codec->vendor_id == 0x80862807)
+       if (is_haswell(codec))
                intel_haswell_fixup_connect_list(codec, pin_nid);
 
        pin_idx = spec->num_pins;
@@ -1511,14 +1522,17 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
        hda_nid_t cvt_nid = hinfo->nid;
        struct hdmi_spec *spec = codec->spec;
        int pin_idx = hinfo_to_pin_index(spec, hinfo);
-       hda_nid_t pin_nid = get_pin(spec, pin_idx)->pin_nid;
+       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+       hda_nid_t pin_nid = per_pin->pin_nid;
        bool non_pcm;
 
        non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
+       per_pin->channels = substream->runtime->channels;
+       per_pin->setup = true;
 
        hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
 
-       hdmi_setup_audio_infoframe(codec, pin_idx, non_pcm, substream);
+       hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
 
        return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
 }
@@ -1558,6 +1572,9 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                snd_hda_spdif_ctls_unassign(codec, pin_idx);
                per_pin->chmap_set = false;
                memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
+
+               per_pin->setup = false;
+               per_pin->channels = 0;
        }
 
        return 0;
@@ -1693,8 +1710,7 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
        per_pin->chmap_set = true;
        memcpy(per_pin->chmap, chmap, sizeof(chmap));
        if (prepared)
-               hdmi_setup_audio_infoframe(codec, pin_idx, per_pin->non_pcm,
-                                          substream);
+               hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
 
        return 0;
 }
@@ -1982,7 +1998,7 @@ static int patch_generic_hdmi(struct hda_codec *codec)
        codec->spec = spec;
        hdmi_array_init(spec, 4);
 
-       if (codec->vendor_id == 0x80862807) {
+       if (is_haswell(codec)) {
                intel_haswell_enable_all_pins(codec, true);
                intel_haswell_fixup_enable_dp12(codec);
        }
@@ -1993,7 +2009,7 @@ static int patch_generic_hdmi(struct hda_codec *codec)
                return -EINVAL;
        }
        codec->patch_ops = generic_hdmi_patch_ops;
-       if (codec->vendor_id == 0x80862807) {
+       if (is_haswell(codec)) {
                codec->patch_ops.set_power_state = haswell_set_power_state;
                codec->dp_mst = true;
        }