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ASoC: hdac_hdmi: Register chmap controls and ops 

With this patch, chmap controls are created and user space can
set the channel map.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Subhransu S. Prusty 2016-04-14 10:07:34 +05:30 committed by Mark Brown
parent 46ed1a27fb
commit 2889099eb8
1 changed files with 100 additions and 0 deletions
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100
sound/soc/codecs/hdac_hdmi.c
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@ -114,6 +114,19 @@ struct hdac_hdmi_priv {
struct hdac_chmap chmap;
};
static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
int pcm_idx)
{
struct hdac_hdmi_pcm *pcm;
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
if (pcm->pcm_id == pcm_idx)
return pcm;
}
return NULL;
}
static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
{
struct hdac_device *hdac = dev_to_hdac_dev(dev);
@ -664,6 +677,8 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
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);
@ -1386,6 +1401,19 @@ static struct i915_audio_component_audio_ops aops = {
.pin_eld_notify = hdac_hdmi_eld_notify_cb,
};
static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
int device)
{
struct snd_soc_pcm_runtime *rtd;
list_for_each_entry(rtd, &card->rtd_list, list) {
if (rtd->pcm && (rtd->pcm->device == device))
return rtd->pcm;
}
return NULL;
}
int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device)
{
char jack_name[NAME_SIZE];
@ -1395,6 +1423,8 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device)
snd_soc_component_get_dapm(&codec->component);
struct hdac_hdmi_priv *hdmi = edev->private_data;
struct hdac_hdmi_pcm *pcm;
struct snd_pcm *snd_pcm;
int err;
/*
* this is a new PCM device, create new pcm and
@ -1406,6 +1436,18 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device)
pcm->pcm_id = device;
pcm->cvt = hdmi->dai_map[dai->id].cvt;
snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
if (snd_pcm) {
err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
if (err < 0) {
dev_err(&edev->hdac.dev,
"chmap control add failed with err: %d for pcm: %d\n",
err, device);
kfree(pcm);
return err;
}
}
list_add_tail(&pcm->head, &hdmi->pcm_list);
sprintf(jack_name, "HDMI/DP, pcm=%d Jack", device);
@ -1524,6 +1566,60 @@ static struct snd_soc_codec_driver hdmi_hda_codec = {
.idle_bias_off = true,
};
static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
unsigned char *chmap)
{
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));
}
static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
unsigned char *chmap, int prepared)
{
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;
mutex_lock(&pin->lock);
pin->chmap_set = true;
memcpy(pin->chmap, chmap, ARRAY_SIZE(pin->chmap));
if (prepared)
hdac_hdmi_setup_audio_infoframe(edev, pcm->cvt->nid, pin->nid);
mutex_unlock(&pin->lock);
}
static bool is_hdac_hdmi_pcm_attached(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;
return pin ? true:false;
}
static int hdac_hdmi_get_spk_alloc(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;
if (!pin && !pin->eld.eld_valid)
return 0;
return pin->eld.info.spk_alloc;
}
static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
{
struct hdac_device *codec = &edev->hdac;
@ -1538,6 +1634,10 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
edev->private_data = hdmi_priv;
snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap);
hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
dev_set_drvdata(&codec->dev, edev);