ALSA: hda - Fix stream and channel-ids codec-bus wide

The new sticky PCM parameter introduced the delayed clean-ups of
stream- and channel-id tags.  In the current implementation, this check
(adding dirty flag) and actual clean-ups are done only for the codec
chip.  However, with HD-audio architecture, multiple codecs can be
on a single bus, and the controller assign stream- and channel-ids in
the bus-wide.

In this patch, the stream-id and channel-id are checked over all codecs
connected to the corresponding bus.  Together with it, the mutex is
moved to struct hda_bus, as this becomes also bus-wide.

Reported-and-tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 21 insertions, 14 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index dd8fb86c842b..3827092cc1d2 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -589,6 +589,7 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card,
         bus->ops = temp->ops;
 
         mutex_init(&bus->cmd_mutex);
+        mutex_init(&bus->prepare_mutex);
         INIT_LIST_HEAD(&bus->codec_list);
 
         snprintf(bus->workq_name, sizeof(bus->workq_name),
@@ -1068,7 +1069,6 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus,
         codec->addr = codec_addr;
         mutex_init(&codec->spdif_mutex);
         mutex_init(&codec->control_mutex);
-        mutex_init(&codec->prepare_mutex);
         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
         snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
@@ -1213,6 +1213,7 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
                                 u32 stream_tag,
                                 int channel_id, int format)
 {
+        struct hda_codec *c;
         struct hda_cvt_setup *p;
         unsigned int oldval, newval;
         int i;
@@ -1253,10 +1254,12 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
         p->dirty = 0;
 
         /* make other inactive cvts with the same stream-tag dirty */
-        for (i = 0; i < codec->cvt_setups.used; i++) {
-                p = snd_array_elem(&codec->cvt_setups, i);
-                if (!p->active && p->stream_tag == stream_tag)
-                        p->dirty = 1;
+        list_for_each_entry(c, &codec->bus->codec_list, list) {
+                for (i = 0; i < c->cvt_setups.used; i++) {
+                        p = snd_array_elem(&c->cvt_setups, i);
+                        if (!p->active && p->stream_tag == stream_tag)
+                                p->dirty = 1;
+                }
         }
 }
 EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
@@ -1306,12 +1309,16 @@ static void really_cleanup_stream(struct hda_codec *codec,
 /* clean up the all conflicting obsolete streams */
 static void purify_inactive_streams(struct hda_codec *codec)
 {
+        struct hda_codec *c;
         int i;
 
-        for (i = 0; i < codec->cvt_setups.used; i++) {
-                struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
-                if (p->dirty)
-                        really_cleanup_stream(codec, p);
+        list_for_each_entry(c, &codec->bus->codec_list, list) {
+                for (i = 0; i < c->cvt_setups.used; i++) {
+                        struct hda_cvt_setup *p;
+                        p = snd_array_elem(&c->cvt_setups, i);
+                        if (p->dirty)
+                                really_cleanup_stream(c, p);
+                }
         }
 }
 
@@ -3502,11 +3509,11 @@ int snd_hda_codec_prepare(struct hda_codec *codec,
                           struct snd_pcm_substream *substream)
 {
         int ret;
-        mutex_lock(&codec->prepare_mutex);
+        mutex_lock(&codec->bus->prepare_mutex);
         ret = hinfo->ops.prepare(hinfo, codec, stream, format, substream);
         if (ret >= 0)
                 purify_inactive_streams(codec);
-        mutex_unlock(&codec->prepare_mutex);
+        mutex_unlock(&codec->bus->prepare_mutex);
         return ret;
 }
 EXPORT_SYMBOL_HDA(snd_hda_codec_prepare);
@@ -3515,9 +3522,9 @@ void snd_hda_codec_cleanup(struct hda_codec *codec,
                            struct hda_pcm_stream *hinfo,
                            struct snd_pcm_substream *substream)
 {
-        mutex_lock(&codec->prepare_mutex);
+        mutex_lock(&codec->bus->prepare_mutex);
         hinfo->ops.cleanup(hinfo, codec, substream);
-        mutex_unlock(&codec->prepare_mutex);
+        mutex_unlock(&codec->bus->prepare_mutex);
 }
 EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup);
 
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 4303353feda9..62c702240108 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -648,6 +648,7 @@ struct hda_bus {
         struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
 
         struct mutex cmd_mutex;
+        struct mutex prepare_mutex;
 
         /* unsolicited event queue */
         struct hda_bus_unsolicited *unsol;
@@ -826,7 +827,6 @@ struct hda_codec {
 
         struct mutex spdif_mutex;
         struct mutex control_mutex;
-        struct mutex prepare_mutex;
         unsigned int spdif_status;      /* IEC958 status bits */
         unsigned short spdif_ctls;      /* SPDIF control bits */
         unsigned int spdif_in_enable;   /* SPDIF input enable? */