Merge branch 'for-linus' into for-next
[deliverable/linux.git] / sound / pci / hda / patch_hdmi.c
index bcbc4ee10130a5ee86de2c23815eb85ec8684459..fe4141c43ddb76a32e3163fd075dc43ecd8449ae 100644 (file)
@@ -75,6 +75,8 @@ struct hdmi_spec_per_cvt {
 
 struct hdmi_spec_per_pin {
        hda_nid_t pin_nid;
+       /* pin idx, different device entries on the same pin use the same idx */
+       int pin_nid_idx;
        int num_mux_nids;
        hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
        int mux_idx;
@@ -84,8 +86,8 @@ struct hdmi_spec_per_pin {
        struct hdmi_eld sink_eld;
        struct mutex lock;
        struct delayed_work work;
-       struct snd_kcontrol *eld_ctl;
-       struct snd_jack *acomp_jack; /* jack via audio component */
+       struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
+       int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
        int repoll_count;
        bool setup; /* the stream has been set up by prepare callback */
        int channels; /* current number of channels */
@@ -130,6 +132,12 @@ struct hdmi_ops {
        int (*chmap_validate)(int ca, int channels, unsigned char *chmap);
 };
 
+struct hdmi_pcm {
+       struct hda_pcm *pcm;
+       struct snd_jack *jack;
+       struct snd_kcontrol *eld_ctl;
+};
+
 struct hdmi_spec {
        int num_cvts;
        struct snd_array cvts; /* struct hdmi_spec_per_cvt */
@@ -137,14 +145,23 @@ struct hdmi_spec {
 
        int num_pins;
        struct snd_array pins; /* struct hdmi_spec_per_pin */
-       struct hda_pcm *pcm_rec[16];
+       struct hdmi_pcm pcm_rec[16];
+       struct mutex pcm_lock;
+       /* pcm_bitmap means which pcms have been assigned to pins*/
+       unsigned long pcm_bitmap;
+       int pcm_used;   /* counter of pcm_rec[] */
+       /* bitmap shows whether the pcm is opened in user space
+        * bit 0 means the first playback PCM (PCM3);
+        * bit 1 means the second playback PCM, and so on.
+        */
+       unsigned long pcm_in_use;
        unsigned int channels_max; /* max over all cvts */
 
        struct hdmi_eld temp_eld;
        struct hdmi_ops ops;
 
        bool dyn_pin_out;
-
+       bool dyn_pcm_assign;
        /*
         * Non-generic VIA/NVIDIA specific
         */
@@ -370,7 +387,10 @@ static struct cea_channel_speaker_allocation channel_allocations[] = {
        ((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
 #define get_cvt(spec, idx) \
        ((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
-#define get_pcm_rec(spec, idx) ((spec)->pcm_rec[idx])
+/* obtain hdmi_pcm object assigned to idx */
+#define get_hdmi_pcm(spec, idx)        (&(spec)->pcm_rec[idx])
+/* obtain hda_pcm object assigned to idx */
+#define get_pcm_rec(spec, idx) (get_hdmi_pcm(spec, idx)->pcm)
 
 static int pin_nid_to_pin_index(struct hda_codec *codec, hda_nid_t pin_nid)
 {
@@ -385,20 +405,52 @@ static int pin_nid_to_pin_index(struct hda_codec *codec, hda_nid_t pin_nid)
        return -EINVAL;
 }
 
+static int hinfo_to_pcm_index(struct hda_codec *codec,
+                       struct hda_pcm_stream *hinfo)
+{
+       struct hdmi_spec *spec = codec->spec;
+       int pcm_idx;
+
+       for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++)
+               if (get_pcm_rec(spec, pcm_idx)->stream == hinfo)
+                       return pcm_idx;
+
+       codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
+       return -EINVAL;
+}
+
 static int hinfo_to_pin_index(struct hda_codec *codec,
                              struct hda_pcm_stream *hinfo)
 {
        struct hdmi_spec *spec = codec->spec;
+       struct hdmi_spec_per_pin *per_pin;
        int pin_idx;
 
-       for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
-               if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
+       for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+               per_pin = get_pin(spec, pin_idx);
+               if (per_pin->pcm &&
+                       per_pin->pcm->pcm->stream == hinfo)
                        return pin_idx;
+       }
 
-       codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
+       codec_dbg(codec, "HDMI: hinfo %p not registered\n", hinfo);
        return -EINVAL;
 }
 
+static struct hdmi_spec_per_pin *pcm_idx_to_pin(struct hdmi_spec *spec,
+                                               int pcm_idx)
+{
+       int i;
+       struct hdmi_spec_per_pin *per_pin;
+
+       for (i = 0; i < spec->num_pins; i++) {
+               per_pin = get_pin(spec, i);
+               if (per_pin->pcm_idx == pcm_idx)
+                       return per_pin;
+       }
+       return NULL;
+}
+
 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
 {
        struct hdmi_spec *spec = codec->spec;
@@ -419,17 +471,22 @@ static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
        struct hdmi_spec *spec = codec->spec;
        struct hdmi_spec_per_pin *per_pin;
        struct hdmi_eld *eld;
-       int pin_idx;
+       int pcm_idx;
 
        uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 
-       pin_idx = kcontrol->private_value;
-       per_pin = get_pin(spec, pin_idx);
+       pcm_idx = kcontrol->private_value;
+       mutex_lock(&spec->pcm_lock);
+       per_pin = pcm_idx_to_pin(spec, pcm_idx);
+       if (!per_pin) {
+               /* no pin is bound to the pcm */
+               uinfo->count = 0;
+               mutex_unlock(&spec->pcm_lock);
+               return 0;
+       }
        eld = &per_pin->sink_eld;
-
-       mutex_lock(&per_pin->lock);
        uinfo->count = eld->eld_valid ? eld->eld_size : 0;
-       mutex_unlock(&per_pin->lock);
+       mutex_unlock(&spec->pcm_lock);
 
        return 0;
 }
@@ -441,16 +498,23 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
        struct hdmi_spec *spec = codec->spec;
        struct hdmi_spec_per_pin *per_pin;
        struct hdmi_eld *eld;
-       int pin_idx;
-
-       pin_idx = kcontrol->private_value;
-       per_pin = get_pin(spec, pin_idx);
+       int pcm_idx;
+
+       pcm_idx = kcontrol->private_value;
+       mutex_lock(&spec->pcm_lock);
+       per_pin = pcm_idx_to_pin(spec, pcm_idx);
+       if (!per_pin) {
+               /* no pin is bound to the pcm */
+               memset(ucontrol->value.bytes.data, 0,
+                      ARRAY_SIZE(ucontrol->value.bytes.data));
+               mutex_unlock(&spec->pcm_lock);
+               return 0;
+       }
        eld = &per_pin->sink_eld;
 
-       mutex_lock(&per_pin->lock);
        if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
            eld->eld_size > ELD_MAX_SIZE) {
-               mutex_unlock(&per_pin->lock);
+               mutex_unlock(&spec->pcm_lock);
                snd_BUG();
                return -EINVAL;
        }
@@ -460,7 +524,7 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
        if (eld->eld_valid)
                memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
                       eld->eld_size);
-       mutex_unlock(&per_pin->lock);
+       mutex_unlock(&spec->pcm_lock);
 
        return 0;
 }
@@ -473,7 +537,7 @@ static struct snd_kcontrol_new eld_bytes_ctl = {
        .get = hdmi_eld_ctl_get,
 };
 
-static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
+static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
                        int device)
 {
        struct snd_kcontrol *kctl;
@@ -483,14 +547,17 @@ static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
        kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
        if (!kctl)
                return -ENOMEM;
-       kctl->private_value = pin_idx;
+       kctl->private_value = pcm_idx;
        kctl->id.device = device;
 
-       err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
+       /* no pin nid is associated with the kctl now
+        * tbd: associate pin nid to eld ctl later
+        */
+       err = snd_hda_ctl_add(codec, 0, kctl);
        if (err < 0)
                return err;
 
-       get_pin(spec, pin_idx)->eld_ctl = kctl;
+       get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
        return 0;
 }
 
@@ -1338,6 +1405,11 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
        return 0;
 }
 
+/* Try to find an available converter
+ * If pin_idx is less then zero, just try to find an available converter.
+ * Otherwise, try to find an available converter and get the cvt mux index
+ * of the pin.
+ */
 static int hdmi_choose_cvt(struct hda_codec *codec,
                        int pin_idx, int *cvt_id, int *mux_id)
 {
@@ -1346,7 +1418,11 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
        struct hdmi_spec_per_cvt *per_cvt = NULL;
        int cvt_idx, mux_idx = 0;
 
-       per_pin = get_pin(spec, pin_idx);
+       /* pin_idx < 0 means no pin will be bound to the converter */
+       if (pin_idx < 0)
+               per_pin = NULL;
+       else
+               per_pin = get_pin(spec, pin_idx);
 
        /* Dynamically assign converter to stream */
        for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
@@ -1355,6 +1431,8 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
                /* Must not already be assigned */
                if (per_cvt->assigned)
                        continue;
+               if (per_pin == NULL)
+                       break;
                /* Must be in pin's mux's list of converters */
                for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
                        if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
@@ -1367,9 +1445,10 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
 
        /* No free converters */
        if (cvt_idx == spec->num_cvts)
-               return -ENODEV;
+               return -EBUSY;
 
-       per_pin->mux_idx = mux_idx;
+       if (per_pin != NULL)
+               per_pin->mux_idx = mux_idx;
 
        if (cvt_id)
                *cvt_id = cvt_idx;
@@ -1395,6 +1474,20 @@ static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
                                            mux_idx);
 }
 
+/* get the mux index for the converter of the pins
+ * converter's mux index is the same for all pins on Intel platform
+ */
+static int intel_cvt_id_to_mux_idx(struct hdmi_spec *spec,
+                       hda_nid_t cvt_nid)
+{
+       int i;
+
+       for (i = 0; i < spec->num_cvts; i++)
+               if (spec->cvt_nids[i] == cvt_nid)
+                       return i;
+       return -EINVAL;
+}
+
 /* Intel HDMI workaround to fix audio routing issue:
  * For some Intel display codecs, pins share the same connection list.
  * So a conveter can be selected by multiple pins and playback on any of these
@@ -1446,6 +1539,74 @@ static void intel_not_share_assigned_cvt(struct hda_codec *codec,
        }
 }
 
+/* A wrapper of intel_not_share_asigned_cvt() */
+static void intel_not_share_assigned_cvt_nid(struct hda_codec *codec,
+                       hda_nid_t pin_nid, hda_nid_t cvt_nid)
+{
+       int mux_idx;
+       struct hdmi_spec *spec = codec->spec;
+
+       if (!is_haswell_plus(codec) && !is_valleyview_plus(codec))
+               return;
+
+       /* On Intel platform, the mapping of converter nid to
+        * mux index of the pins are always the same.
+        * The pin nid may be 0, this means all pins will not
+        * share the converter.
+        */
+       mux_idx = intel_cvt_id_to_mux_idx(spec, cvt_nid);
+       if (mux_idx >= 0)
+               intel_not_share_assigned_cvt(codec, pin_nid, mux_idx);
+}
+
+/* called in hdmi_pcm_open when no pin is assigned to the PCM
+ * in dyn_pcm_assign mode.
+ */
+static int hdmi_pcm_open_no_pin(struct hda_pcm_stream *hinfo,
+                        struct hda_codec *codec,
+                        struct snd_pcm_substream *substream)
+{
+       struct hdmi_spec *spec = codec->spec;
+       struct snd_pcm_runtime *runtime = substream->runtime;
+       int cvt_idx, pcm_idx;
+       struct hdmi_spec_per_cvt *per_cvt = NULL;
+       int err;
+
+       pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+       if (pcm_idx < 0)
+               return -EINVAL;
+
+       err = hdmi_choose_cvt(codec, -1, &cvt_idx, NULL);
+       if (err)
+               return err;
+
+       per_cvt = get_cvt(spec, cvt_idx);
+       per_cvt->assigned = 1;
+       hinfo->nid = per_cvt->cvt_nid;
+
+       intel_not_share_assigned_cvt_nid(codec, 0, per_cvt->cvt_nid);
+
+       set_bit(pcm_idx, &spec->pcm_in_use);
+       /* todo: setup spdif ctls assign */
+
+       /* Initially set the converter's capabilities */
+       hinfo->channels_min = per_cvt->channels_min;
+       hinfo->channels_max = per_cvt->channels_max;
+       hinfo->rates = per_cvt->rates;
+       hinfo->formats = per_cvt->formats;
+       hinfo->maxbps = per_cvt->maxbps;
+
+       /* Store the updated parameters */
+       runtime->hw.channels_min = hinfo->channels_min;
+       runtime->hw.channels_max = hinfo->channels_max;
+       runtime->hw.formats = hinfo->formats;
+       runtime->hw.rates = hinfo->rates;
+
+       snd_pcm_hw_constraint_step(substream->runtime, 0,
+                                  SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+       return 0;
+}
+
 /*
  * HDA PCM callbacks
  */
@@ -1455,26 +1616,47 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
 {
        struct hdmi_spec *spec = codec->spec;
        struct snd_pcm_runtime *runtime = substream->runtime;
-       int pin_idx, cvt_idx, mux_idx = 0;
+       int pin_idx, cvt_idx, pcm_idx, mux_idx = 0;
        struct hdmi_spec_per_pin *per_pin;
        struct hdmi_eld *eld;
        struct hdmi_spec_per_cvt *per_cvt = NULL;
        int err;
 
        /* Validate hinfo */
-       pin_idx = hinfo_to_pin_index(codec, hinfo);
-       if (snd_BUG_ON(pin_idx < 0))
+       pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+       if (pcm_idx < 0)
                return -EINVAL;
-       per_pin = get_pin(spec, pin_idx);
-       eld = &per_pin->sink_eld;
+
+       mutex_lock(&spec->pcm_lock);
+       pin_idx = hinfo_to_pin_index(codec, hinfo);
+       if (!spec->dyn_pcm_assign) {
+               if (snd_BUG_ON(pin_idx < 0)) {
+                       mutex_unlock(&spec->pcm_lock);
+                       return -EINVAL;
+               }
+       } else {
+               /* no pin is assigned to the PCM
+                * PA need pcm open successfully when probe
+                */
+               if (pin_idx < 0) {
+                       err = hdmi_pcm_open_no_pin(hinfo, codec, substream);
+                       mutex_unlock(&spec->pcm_lock);
+                       return err;
+               }
+       }
 
        err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
-       if (err < 0)
+       if (err < 0) {
+               mutex_unlock(&spec->pcm_lock);
                return err;
+       }
 
        per_cvt = get_cvt(spec, cvt_idx);
        /* Claim converter */
        per_cvt->assigned = 1;
+
+       set_bit(pcm_idx, &spec->pcm_in_use);
+       per_pin = get_pin(spec, pin_idx);
        per_pin->cvt_nid = per_cvt->cvt_nid;
        hinfo->nid = per_cvt->cvt_nid;
 
@@ -1486,7 +1668,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
        if (is_haswell_plus(codec) || is_valleyview_plus(codec))
                intel_not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx);
 
-       snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
+       snd_hda_spdif_ctls_assign(codec, pcm_idx, per_cvt->cvt_nid);
 
        /* Initially set the converter's capabilities */
        hinfo->channels_min = per_cvt->channels_min;
@@ -1495,6 +1677,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
        hinfo->formats = per_cvt->formats;
        hinfo->maxbps = per_cvt->maxbps;
 
+       eld = &per_pin->sink_eld;
        /* Restrict capabilities by ELD if this isn't disabled */
        if (!static_hdmi_pcm && eld->eld_valid) {
                snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
@@ -1502,11 +1685,13 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
                    !hinfo->rates || !hinfo->formats) {
                        per_cvt->assigned = 0;
                        hinfo->nid = 0;
-                       snd_hda_spdif_ctls_unassign(codec, pin_idx);
+                       snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+                       mutex_unlock(&spec->pcm_lock);
                        return -ENODEV;
                }
        }
 
+       mutex_unlock(&spec->pcm_lock);
        /* Store the updated parameters */
        runtime->hw.channels_min = hinfo->channels_min;
        runtime->hw.channels_max = hinfo->channels_max;
@@ -1541,6 +1726,125 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
        return 0;
 }
 
+static int hdmi_find_pcm_slot(struct hdmi_spec *spec,
+                               struct hdmi_spec_per_pin *per_pin)
+{
+       int i;
+
+       /* try the prefer PCM */
+       if (!test_bit(per_pin->pin_nid_idx, &spec->pcm_bitmap))
+               return per_pin->pin_nid_idx;
+
+       /* have a second try; check the "reserved area" over num_pins */
+       for (i = spec->num_pins; i < spec->pcm_used; i++) {
+               if (!test_bit(i, &spec->pcm_bitmap))
+                       return i;
+       }
+
+       /* the last try; check the empty slots in pins */
+       for (i = 0; i < spec->num_pins; i++) {
+               if (!test_bit(i, &spec->pcm_bitmap))
+                       return i;
+       }
+       return -EBUSY;
+}
+
+static void hdmi_attach_hda_pcm(struct hdmi_spec *spec,
+                               struct hdmi_spec_per_pin *per_pin)
+{
+       int idx;
+
+       /* pcm already be attached to the pin */
+       if (per_pin->pcm)
+               return;
+       idx = hdmi_find_pcm_slot(spec, per_pin);
+       if (idx == -EBUSY)
+               return;
+       per_pin->pcm_idx = idx;
+       per_pin->pcm = get_hdmi_pcm(spec, idx);
+       set_bit(idx, &spec->pcm_bitmap);
+}
+
+static void hdmi_detach_hda_pcm(struct hdmi_spec *spec,
+                               struct hdmi_spec_per_pin *per_pin)
+{
+       int idx;
+
+       /* pcm already be detached from the pin */
+       if (!per_pin->pcm)
+               return;
+       idx = per_pin->pcm_idx;
+       per_pin->pcm_idx = -1;
+       per_pin->pcm = NULL;
+       if (idx >= 0 && idx < spec->pcm_used)
+               clear_bit(idx, &spec->pcm_bitmap);
+}
+
+static int hdmi_get_pin_cvt_mux(struct hdmi_spec *spec,
+               struct hdmi_spec_per_pin *per_pin, hda_nid_t cvt_nid)
+{
+       int mux_idx;
+
+       for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
+               if (per_pin->mux_nids[mux_idx] == cvt_nid)
+                       break;
+       return mux_idx;
+}
+
+static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid);
+
+static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
+                          struct hdmi_spec_per_pin *per_pin)
+{
+       struct hda_codec *codec = per_pin->codec;
+       struct hda_pcm *pcm;
+       struct hda_pcm_stream *hinfo;
+       struct snd_pcm_substream *substream;
+       int mux_idx;
+       bool non_pcm;
+
+       if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
+               pcm = get_pcm_rec(spec, per_pin->pcm_idx);
+       else
+               return;
+       if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
+               return;
+
+       /* hdmi audio only uses playback and one substream */
+       hinfo = pcm->stream;
+       substream = pcm->pcm->streams[0].substream;
+
+       per_pin->cvt_nid = hinfo->nid;
+
+       mux_idx = hdmi_get_pin_cvt_mux(spec, per_pin, hinfo->nid);
+       if (mux_idx < per_pin->num_mux_nids)
+               snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
+                               AC_VERB_SET_CONNECT_SEL,
+                               mux_idx);
+       snd_hda_spdif_ctls_assign(codec, per_pin->pcm_idx, hinfo->nid);
+
+       non_pcm = check_non_pcm_per_cvt(codec, hinfo->nid);
+       if (substream->runtime)
+               per_pin->channels = substream->runtime->channels;
+       per_pin->setup = true;
+       per_pin->mux_idx = mux_idx;
+
+       hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
+}
+
+static void hdmi_pcm_reset_pin(struct hdmi_spec *spec,
+                          struct hdmi_spec_per_pin *per_pin)
+{
+       if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
+               snd_hda_spdif_ctls_unassign(per_pin->codec, per_pin->pcm_idx);
+
+       per_pin->chmap_set = false;
+       memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
+
+       per_pin->setup = false;
+       per_pin->channels = 0;
+}
+
 /* update per_pin ELD from the given new ELD;
  * setup info frame and notification accordingly
  */
@@ -1549,8 +1853,27 @@ static void update_eld(struct hda_codec *codec,
                       struct hdmi_eld *eld)
 {
        struct hdmi_eld *pin_eld = &per_pin->sink_eld;
+       struct hdmi_spec *spec = codec->spec;
        bool old_eld_valid = pin_eld->eld_valid;
        bool eld_changed;
+       int pcm_idx = -1;
+
+       /* for monitor disconnection, save pcm_idx firstly */
+       pcm_idx = per_pin->pcm_idx;
+       if (spec->dyn_pcm_assign) {
+               if (eld->eld_valid) {
+                       hdmi_attach_hda_pcm(spec, per_pin);
+                       hdmi_pcm_setup_pin(spec, per_pin);
+               } else {
+                       hdmi_pcm_reset_pin(spec, per_pin);
+                       hdmi_detach_hda_pcm(spec, per_pin);
+               }
+       }
+       /* if pcm_idx == -1, it means this is in monitor connection event
+        * we can get the correct pcm_idx now.
+        */
+       if (pcm_idx == -1)
+               pcm_idx = per_pin->pcm_idx;
 
        if (eld->eld_valid)
                snd_hdmi_show_eld(codec, &eld->info);
@@ -1584,11 +1907,11 @@ static void update_eld(struct hda_codec *codec,
                hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
        }
 
-       if (eld_changed)
+       if (eld_changed && pcm_idx >= 0)
                snd_ctl_notify(codec->card,
                               SNDRV_CTL_EVENT_MASK_VALUE |
                               SNDRV_CTL_EVENT_MASK_INFO,
-                              &per_pin->eld_ctl->id);
+                              &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
 }
 
 /* update ELD and jack state via HD-audio verbs */
@@ -1656,12 +1979,36 @@ static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
        return ret;
 }
 
+static struct snd_jack *pin_idx_to_jack(struct hda_codec *codec,
+                                struct hdmi_spec_per_pin *per_pin)
+{
+       struct hdmi_spec *spec = codec->spec;
+       struct snd_jack *jack = NULL;
+       struct hda_jack_tbl *jack_tbl;
+
+       /* if !dyn_pcm_assign, get jack from hda_jack_tbl
+        * in !dyn_pcm_assign case, spec->pcm_rec[].jack is not
+        * NULL even after snd_hda_jack_tbl_clear() is called to
+        * free snd_jack. This may cause access invalid memory
+        * when calling snd_jack_report
+        */
+       if (per_pin->pcm_idx >= 0 && spec->dyn_pcm_assign)
+               jack = spec->pcm_rec[per_pin->pcm_idx].jack;
+       else if (!spec->dyn_pcm_assign) {
+               jack_tbl = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
+               if (jack_tbl)
+                       jack = jack_tbl->jack;
+       }
+       return jack;
+}
+
 /* update ELD and jack state via audio component */
 static void sync_eld_via_acomp(struct hda_codec *codec,
                               struct hdmi_spec_per_pin *per_pin)
 {
        struct hdmi_spec *spec = codec->spec;
        struct hdmi_eld *eld = &spec->temp_eld;
+       struct snd_jack *jack = NULL;
        int size;
 
        mutex_lock(&per_pin->lock);
@@ -1685,8 +2032,16 @@ static void sync_eld_via_acomp(struct hda_codec *codec,
                eld->eld_size = 0;
        }
 
+       /* pcm_idx >=0 before update_eld() means it is in monitor
+        * disconnected event. Jack must be fetched before update_eld()
+        */
+       jack = pin_idx_to_jack(codec, per_pin);
        update_eld(codec, per_pin, eld);
-       snd_jack_report(per_pin->acomp_jack,
+       if (jack == NULL)
+               jack = pin_idx_to_jack(codec, per_pin);
+       if (jack == NULL)
+               goto unlock;
+       snd_jack_report(jack,
                        eld->monitor_present ? SND_JACK_AVOUT : 0);
  unlock:
        mutex_unlock(&per_pin->lock);
@@ -1695,13 +2050,19 @@ static void sync_eld_via_acomp(struct hda_codec *codec,
 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 {
        struct hda_codec *codec = per_pin->codec;
+       struct hdmi_spec *spec = codec->spec;
+       int ret;
 
+       mutex_lock(&spec->pcm_lock);
        if (codec_has_acomp(codec)) {
                sync_eld_via_acomp(codec, per_pin);
-               return false; /* don't call snd_hda_jack_report_sync() */
+               ret = false; /* don't call snd_hda_jack_report_sync() */
        } else {
-               return hdmi_present_sense_via_verbs(per_pin, repoll);
+               ret = hdmi_present_sense_via_verbs(per_pin, repoll);
        }
+       mutex_unlock(&spec->pcm_lock);
+
+       return ret;
 }
 
 static void hdmi_repoll_eld(struct work_struct *work)
@@ -1745,6 +2106,13 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
 
        per_pin->pin_nid = pin_nid;
        per_pin->non_pcm = false;
+       if (spec->dyn_pcm_assign)
+               per_pin->pcm_idx = -1;
+       else {
+               per_pin->pcm = get_hdmi_pcm(spec, pin_idx);
+               per_pin->pcm_idx = pin_idx;
+       }
+       per_pin->pin_nid_idx = pin_idx;
 
        err = hdmi_read_pin_conn(codec, pin_idx);
        if (err < 0)
@@ -1851,13 +2219,34 @@ 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(codec, hinfo);
-       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
-       hda_nid_t pin_nid = per_pin->pin_nid;
+       int pin_idx;
+       struct hdmi_spec_per_pin *per_pin;
+       hda_nid_t pin_nid;
        struct snd_pcm_runtime *runtime = substream->runtime;
        bool non_pcm;
        int pinctl;
+       int err;
+
+       mutex_lock(&spec->pcm_lock);
+       pin_idx = hinfo_to_pin_index(codec, hinfo);
+       if (spec->dyn_pcm_assign && pin_idx < 0) {
+               /* when dyn_pcm_assign and pcm is not bound to a pin
+                * skip pin setup and return 0 to make audio playback
+                * be ongoing
+                */
+               intel_not_share_assigned_cvt_nid(codec, 0, cvt_nid);
+               snd_hda_codec_setup_stream(codec, cvt_nid,
+                                       stream_tag, 0, format);
+               mutex_unlock(&spec->pcm_lock);
+               return 0;
+       }
 
+       if (snd_BUG_ON(pin_idx < 0)) {
+               mutex_unlock(&spec->pcm_lock);
+               return -EINVAL;
+       }
+       per_pin = get_pin(spec, pin_idx);
+       pin_nid = per_pin->pin_nid;
        if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
                /* Verify pin:cvt selections to avoid silent audio after S3.
                 * After S3, the audio driver restores pin:cvt selections
@@ -1882,7 +2271,6 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 
        hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
        mutex_unlock(&per_pin->lock);
-
        if (spec->dyn_pin_out) {
                pinctl = snd_hda_codec_read(codec, pin_nid, 0,
                                            AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
@@ -1891,7 +2279,10 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                    pinctl | PIN_OUT);
        }
 
-       return spec->ops.setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
+       err = spec->ops.setup_stream(codec, cvt_nid, pin_nid,
+                                stream_tag, format);
+       mutex_unlock(&spec->pcm_lock);
+       return err;
 }
 
 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
@@ -1907,12 +2298,15 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                          struct snd_pcm_substream *substream)
 {
        struct hdmi_spec *spec = codec->spec;
-       int cvt_idx, pin_idx;
+       int cvt_idx, pin_idx, pcm_idx;
        struct hdmi_spec_per_cvt *per_cvt;
        struct hdmi_spec_per_pin *per_pin;
        int pinctl;
 
        if (hinfo->nid) {
+               pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+               if (snd_BUG_ON(pcm_idx < 0))
+                       return -EINVAL;
                cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
                if (snd_BUG_ON(cvt_idx < 0))
                        return -EINVAL;
@@ -1922,9 +2316,19 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                per_cvt->assigned = 0;
                hinfo->nid = 0;
 
+               mutex_lock(&spec->pcm_lock);
+               snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+               clear_bit(pcm_idx, &spec->pcm_in_use);
                pin_idx = hinfo_to_pin_index(codec, hinfo);
-               if (snd_BUG_ON(pin_idx < 0))
+               if (spec->dyn_pcm_assign && pin_idx < 0) {
+                       mutex_unlock(&spec->pcm_lock);
+                       return 0;
+               }
+
+               if (snd_BUG_ON(pin_idx < 0)) {
+                       mutex_unlock(&spec->pcm_lock);
                        return -EINVAL;
+               }
                per_pin = get_pin(spec, pin_idx);
 
                if (spec->dyn_pin_out) {
@@ -1935,8 +2339,6 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                                            pinctl & ~PIN_OUT);
                }
 
-               snd_hda_spdif_ctls_unassign(codec, pin_idx);
-
                mutex_lock(&per_pin->lock);
                per_pin->chmap_set = false;
                memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
@@ -1944,6 +2346,7 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                per_pin->setup = false;
                per_pin->channels = 0;
                mutex_unlock(&per_pin->lock);
+               mutex_unlock(&spec->pcm_lock);
        }
 
        return 0;
@@ -2055,10 +2458,16 @@ static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
        struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
        struct hda_codec *codec = info->private_data;
        struct hdmi_spec *spec = codec->spec;
-       int pin_idx = kcontrol->private_value;
-       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+       int pcm_idx = kcontrol->private_value;
+       struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
        int i;
 
+       if (!per_pin) {
+               for (i = 0; i < spec->channels_max; i++)
+                       ucontrol->value.integer.value[i] = 0;
+               return 0;
+       }
+
        for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
                ucontrol->value.integer.value[i] = per_pin->chmap[i];
        return 0;
@@ -2070,13 +2479,19 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
        struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
        struct hda_codec *codec = info->private_data;
        struct hdmi_spec *spec = codec->spec;
-       int pin_idx = kcontrol->private_value;
-       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+       int pcm_idx = kcontrol->private_value;
+       struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
        unsigned int ctl_idx;
        struct snd_pcm_substream *substream;
        unsigned char chmap[8];
        int i, err, ca, prepared = 0;
 
+       /* No monitor is connected in dyn_pcm_assign.
+        * It's invalid to setup the chmap
+        */
+       if (!per_pin)
+               return 0;
+
        ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
        substream = snd_pcm_chmap_substream(info, ctl_idx);
        if (!substream || !substream->runtime)
@@ -2126,7 +2541,9 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec)
                info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx);
                if (!info)
                        return -ENOMEM;
-               spec->pcm_rec[pin_idx] = info;
+
+               spec->pcm_rec[pin_idx].pcm = info;
+               spec->pcm_used++;
                info->pcm_type = HDA_PCM_TYPE_HDMI;
                info->own_chmap = true;
 
@@ -2139,15 +2556,16 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec)
        return 0;
 }
 
-static void free_acomp_jack_priv(struct snd_jack *jack)
+static void free_hdmi_jack_priv(struct snd_jack *jack)
 {
-       struct hdmi_spec_per_pin *per_pin = jack->private_data;
+       struct hdmi_pcm *pcm = jack->private_data;
 
-       per_pin->acomp_jack = NULL;
+       pcm->jack = NULL;
 }
 
-static int add_acomp_jack_kctl(struct hda_codec *codec,
-                              struct hdmi_spec_per_pin *per_pin,
+static int add_hdmi_jack_kctl(struct hda_codec *codec,
+                              struct hdmi_spec *spec,
+                              int pcm_idx,
                               const char *name)
 {
        struct snd_jack *jack;
@@ -2157,77 +2575,110 @@ static int add_acomp_jack_kctl(struct hda_codec *codec,
                           true, false);
        if (err < 0)
                return err;
-       per_pin->acomp_jack = jack;
-       jack->private_data = per_pin;
-       jack->private_free = free_acomp_jack_priv;
+
+       spec->pcm_rec[pcm_idx].jack = jack;
+       jack->private_data = &spec->pcm_rec[pcm_idx];
+       jack->private_free = free_hdmi_jack_priv;
        return 0;
 }
 
-static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
+static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
 {
        char hdmi_str[32] = "HDMI/DP";
        struct hdmi_spec *spec = codec->spec;
-       struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
-       int pcmdev = get_pcm_rec(spec, pin_idx)->device;
+       struct hdmi_spec_per_pin *per_pin;
+       struct hda_jack_tbl *jack;
+       int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
        bool phantom_jack;
+       int ret;
 
        if (pcmdev > 0)
                sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
-       if (codec_has_acomp(codec))
-               return add_acomp_jack_kctl(codec, per_pin, hdmi_str);
+
+       if (spec->dyn_pcm_assign)
+               return add_hdmi_jack_kctl(codec, spec, pcm_idx, hdmi_str);
+
+       /* for !dyn_pcm_assign, we still use hda_jack for compatibility */
+       /* if !dyn_pcm_assign, it must be non-MST mode.
+        * This means pcms and pins are statically mapped.
+        * And pcm_idx is pin_idx.
+        */
+       per_pin = get_pin(spec, pcm_idx);
        phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
        if (phantom_jack)
                strncat(hdmi_str, " Phantom",
                        sizeof(hdmi_str) - strlen(hdmi_str) - 1);
-
-       return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
-                                    phantom_jack);
+       ret = snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
+                                   phantom_jack);
+       if (ret < 0)
+               return ret;
+       jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
+       if (jack == NULL)
+               return 0;
+       /* assign jack->jack to pcm_rec[].jack to
+        * align with dyn_pcm_assign mode
+        */
+       spec->pcm_rec[pcm_idx].jack = jack->jack;
+       return 0;
 }
 
 static int generic_hdmi_build_controls(struct hda_codec *codec)
 {
        struct hdmi_spec *spec = codec->spec;
        int err;
-       int pin_idx;
+       int pin_idx, pcm_idx;
 
-       for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
-               struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
 
-               err = generic_hdmi_build_jack(codec, pin_idx);
+       for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
+               err = generic_hdmi_build_jack(codec, pcm_idx);
                if (err < 0)
                        return err;
 
-               err = snd_hda_create_dig_out_ctls(codec,
+               /* create the spdif for each pcm
+                * pin will be bound when monitor is connected
+                */
+               if (spec->dyn_pcm_assign)
+                       err = snd_hda_create_dig_out_ctls(codec,
+                                         0, spec->cvt_nids[0],
+                                         HDA_PCM_TYPE_HDMI);
+               else {
+                       struct hdmi_spec_per_pin *per_pin =
+                               get_pin(spec, pcm_idx);
+                       err = snd_hda_create_dig_out_ctls(codec,
                                                  per_pin->pin_nid,
                                                  per_pin->mux_nids[0],
                                                  HDA_PCM_TYPE_HDMI);
+               }
                if (err < 0)
                        return err;
-               snd_hda_spdif_ctls_unassign(codec, pin_idx);
+               snd_hda_spdif_ctls_unassign(codec, pcm_idx);
 
                /* add control for ELD Bytes */
-               err = hdmi_create_eld_ctl(codec, pin_idx,
-                                         get_pcm_rec(spec, pin_idx)->device);
-
+               err = hdmi_create_eld_ctl(codec, pcm_idx,
+                                       get_pcm_rec(spec, pcm_idx)->device);
                if (err < 0)
                        return err;
+       }
+
+       for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+               struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
 
                hdmi_present_sense(per_pin, 0);
        }
 
        /* add channel maps */
-       for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+       for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
                struct hda_pcm *pcm;
                struct snd_pcm_chmap *chmap;
                struct snd_kcontrol *kctl;
                int i;
 
-               pcm = spec->pcm_rec[pin_idx];
+               pcm = get_pcm_rec(spec, pcm_idx);
                if (!pcm || !pcm->pcm)
                        break;
                err = snd_pcm_add_chmap_ctls(pcm->pcm,
                                             SNDRV_PCM_STREAM_PLAYBACK,
-                                            NULL, 0, pin_idx, &chmap);
+                                            NULL, 0, pcm_idx, &chmap);
                if (err < 0)
                        return err;
                /* override handlers */
@@ -2293,18 +2744,25 @@ static void hdmi_array_free(struct hdmi_spec *spec)
 static void generic_hdmi_free(struct hda_codec *codec)
 {
        struct hdmi_spec *spec = codec->spec;
-       int pin_idx;
+       int pin_idx, pcm_idx;
 
        if (codec_has_acomp(codec))
                snd_hdac_i915_register_notifier(NULL);
 
        for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
                struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
-
                cancel_delayed_work_sync(&per_pin->work);
                eld_proc_free(per_pin);
-               if (per_pin->acomp_jack)
-                       snd_device_free(codec->card, per_pin->acomp_jack);
+       }
+
+       for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
+               if (spec->pcm_rec[pcm_idx].jack == NULL)
+                       continue;
+               if (spec->dyn_pcm_assign)
+                       snd_device_free(codec->card,
+                                       spec->pcm_rec[pcm_idx].jack);
+               else
+                       spec->pcm_rec[pcm_idx].jack = NULL;
        }
 
        if (spec->i915_bound)
@@ -2453,6 +2911,7 @@ static int patch_generic_hdmi(struct hda_codec *codec)
                return -ENOMEM;
 
        spec->ops = generic_standard_hdmi_ops;
+       mutex_init(&spec->pcm_lock);
        codec->spec = spec;
        hdmi_array_init(spec, 4);
 
@@ -2510,6 +2969,7 @@ static int patch_generic_hdmi(struct hda_codec *codec)
                snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
        }
 
+       WARN_ON(spec->dyn_pcm_assign && !codec_has_acomp(codec));
        return 0;
 }
 
@@ -2532,7 +2992,7 @@ static int simple_playback_build_pcms(struct hda_codec *codec)
        info = snd_hda_codec_pcm_new(codec, "HDMI 0");
        if (!info)
                return -ENOMEM;
-       spec->pcm_rec[0] = info;
+       spec->pcm_rec[0].pcm = info;
        info->pcm_type = HDA_PCM_TYPE_HDMI;
        pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
        *pstr = spec->pcm_playback;
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