[PATCH 04/30] ASoC: hdac_hdmi: Move channel info from pin to PCM structure

[jeeja.kp@intel.com]

From: Jeeja KP <jeeja.kp@intel.com>

Channel info is part of the pcm parameter and channel map control is
created for each pcm. So move channel info to pcm instead of pin
structure and the mutex lock to pcm.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
---
 sound/soc/codecs/hdac_hdmi.c | 76 ++++++++++++++++++++------------------------
 1 file changed, 34 insertions(+), 42 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index c0b49f4..2a370d6 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -85,10 +85,6 @@ struct hdac_hdmi_pin {
 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
 	struct hdac_hdmi_eld eld;
 	struct hdac_ext_device *edev;
-	struct mutex lock;
-	bool chmap_set;
-	unsigned char chmap[8]; /* ALSA API channel-map */
-	int channels; /* current number of channels */
 };
 
 struct hdac_hdmi_pcm {
@@ -100,6 +96,9 @@ struct hdac_hdmi_pcm {
 	int stream_tag;
 	int channels;
 	int format;
+	bool chmap_set;
+	unsigned char chmap[8]; /* ALSA API channel-map */
+	struct mutex lock;
 };
 
 struct hdac_hdmi_dai_pin_map {
@@ -217,13 +216,13 @@ struct dp_audio_infoframe {
 };
 
 static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
-				hda_nid_t cvt_nid, hda_nid_t pin_nid)
+		   struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_pin *pin)
 {
 	uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 	struct hdmi_audio_infoframe frame;
 	struct dp_audio_infoframe dp_ai;
 	struct hdac_hdmi_priv *hdmi = hdac->private_data;
-	struct hdac_hdmi_pin *pin;
+	struct hdac_hdmi_cvt *cvt = pcm->cvt;
 	u8 *dip;
 	int ret;
 	int i;
@@ -231,19 +230,14 @@ static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
 	u8 conn_type;
 	int channels, ca;
 
-	list_for_each_entry(pin, &hdmi->pin_list, head) {
-		if (pin->nid == pin_nid)
-			break;
-	}
-
 	ca = snd_hdac_channel_allocation(&hdac->hdac, pin->eld.info.spk_alloc,
-			pin->channels, pin->chmap_set, true, pin->chmap);
+			pcm->channels, pcm->chmap_set, true, pcm->chmap);
 
 	channels = snd_hdac_get_active_channels(ca);
-	hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt_nid, channels);
+	hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt->nid, channels);
 
 	snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
-				pin->channels, pin->chmap, pin->chmap_set);
+				pcm->channels, pcm->chmap, pcm->chmap_set);
 
 	eld_buf = pin->eld.eld_buffer;
 	conn_type = drm_eld_get_conn_type(eld_buf);
@@ -279,26 +273,26 @@ static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
 	}
 
 	/* stop infoframe transmission */
-	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
-	snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+	hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
+	snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
 			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 
 
 	/*  Fill infoframe. Index auto-incremented */
-	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
+	hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
 	if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 		for (i = 0; i < sizeof(buffer); i++)
-			snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+			snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
 				AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 	} else {
 		for (i = 0; i < sizeof(dp_ai); i++)
-			snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+			snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
 				AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 	}
 
 	/* Start infoframe */
-	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
-	snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+	hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
+	snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
 			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 
 	return 0;
@@ -476,18 +470,22 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 	struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
 	struct hdac_hdmi_priv *hdmi = hdac->private_data;
 	struct hdac_hdmi_dai_pin_map *dai_map;
+	struct hdac_hdmi_pcm *pcm;
 
 	dai_map = &hdmi->dai_map[dai->id];
 
-	if (dai_map->pin) {
-		mutex_lock(&dai_map->pin->lock);
-		dai_map->pin->chmap_set = false;
-		memset(dai_map->pin->chmap, 0, sizeof(dai_map->pin->chmap));
-		dai_map->pin->channels = 0;
-		mutex_unlock(&dai_map->pin->lock);
+	pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 
-		dai_map->pin = NULL;
+	if (pcm) {
+		mutex_lock(&pcm->lock);
+		pcm->chmap_set = false;
+		memset(pcm->chmap, 0, sizeof(pcm->chmap));
+		pcm->channels = 0;
+		mutex_unlock(&pcm->lock);
 	}
+
+	if (dai_map->pin)
+		dai_map->pin = NULL;
 }
 
 static int
@@ -611,8 +609,7 @@ static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 
 		hdac_hdmi_set_amp(edev, pin->nid, AMP_OUT_UNMUTE);
 
-		return hdac_hdmi_setup_audio_infoframe(edev, pcm->cvt->nid,
-								pin->nid);
+		return hdac_hdmi_setup_audio_infoframe(edev, pcm, pin);
 
 	case SND_SOC_DAPM_POST_PMD:
 		hdac_hdmi_set_amp(edev, pin->nid, AMP_OUT_MUTE);
@@ -1110,7 +1107,6 @@ static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
 	hdmi->num_pin++;
 
 	pin->edev = edev;
-	mutex_init(&pin->lock);
 
 	return 0;
 }
@@ -1361,6 +1357,7 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device)
 		return -ENOMEM;
 	pcm->pcm_id = device;
 	pcm->cvt = hdmi->dai_map[dai->id].cvt;
+	mutex_init(&pcm->lock);
 
 	snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
 	if (snd_pcm) {
@@ -1506,13 +1503,8 @@ static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
 	struct hdac_ext_device *edev = to_ehdac_device(hdac);
 	struct hdac_hdmi_priv *hdmi = edev->private_data;
 	struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
-	struct hdac_hdmi_pin *pin = pcm->pin;
-
-	/* chmap is already set to 0 in caller */
-	if (!pin)
-		return;
 
-	memcpy(chmap, pin->chmap, ARRAY_SIZE(pin->chmap));
+	memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
 }
 
 static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
@@ -1523,12 +1515,12 @@ static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
 	struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
 	struct hdac_hdmi_pin *pin = pcm->pin;
 
-	mutex_lock(&pin->lock);
-	pin->chmap_set = true;
-	memcpy(pin->chmap, chmap, ARRAY_SIZE(pin->chmap));
+	mutex_lock(&pcm->lock);
+	pcm->chmap_set = true;
+	memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
 	if (prepared)
-		hdac_hdmi_setup_audio_infoframe(edev, pcm->cvt->nid, pin->nid);
-	mutex_unlock(&pin->lock);
+		hdac_hdmi_setup_audio_infoframe(edev, pcm, pin);
+	mutex_unlock(&pcm->lock);
 }
 
 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
-- 
2.5.0