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Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
-rw-r--r--sound/soc/codecs/hdac_hdmi.c167
1 files changed, 151 insertions, 16 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index e6558475e006..cb23650ad522 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -9,6 +9,7 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
+
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/module.h>
@@ -107,6 +108,7 @@ struct hdac_hdmi_pcm {
unsigned char chmap[8]; /* ALSA API channel-map */
struct mutex lock;
int jack_event;
+ struct snd_kcontrol *eld_ctl;
};
struct hdac_hdmi_dai_port_map {
@@ -142,14 +144,14 @@ static struct hdac_hdmi_pcm *
hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
struct hdac_hdmi_cvt *cvt)
{
- struct hdac_hdmi_pcm *pcm = NULL;
+ struct hdac_hdmi_pcm *pcm;
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
if (pcm->cvt == cvt)
- break;
+ return pcm;
}
- return pcm;
+ return NULL;
}
static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
@@ -521,7 +523,7 @@ static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
struct hdac_hdmi_cvt *cvt)
{
struct hdac_hdmi_pcm *pcm;
- struct hdac_hdmi_port *port = NULL;
+ struct hdac_hdmi_port *port;
int ret, i;
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
@@ -711,7 +713,7 @@ static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
struct hdac_hdmi_port *port)
{
struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
- struct hdac_hdmi_pcm *pcm = NULL;
+ struct hdac_hdmi_pcm *pcm;
struct hdac_hdmi_port *p;
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
@@ -898,7 +900,7 @@ static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
struct hdac_hdmi_port *port = w->priv;
struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
- struct hdac_hdmi_pcm *pcm = NULL;
+ struct hdac_hdmi_pcm *pcm;
const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
@@ -1248,6 +1250,7 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
struct hdac_hdmi_pcm *pcm;
int size = 0;
int port_id = -1;
+ bool eld_valid, eld_changed;
if (!hdmi)
return;
@@ -1273,6 +1276,8 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
size = -EINVAL;
}
+ eld_valid = port->eld.eld_valid;
+
if (size > 0) {
port->eld.eld_valid = true;
port->eld.eld_size = size;
@@ -1281,6 +1286,8 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
port->eld.eld_size = 0;
}
+ eld_changed = (eld_valid != port->eld.eld_valid);
+
pcm = hdac_hdmi_get_pcm(hdev, port);
if (!port->eld.monitor_present || !port->eld.eld_valid) {
@@ -1313,6 +1320,12 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
}
mutex_unlock(&hdmi->pin_mutex);
+
+ if (eld_changed && pcm)
+ snd_ctl_notify(hdmi->card,
+ SNDRV_CTL_EVENT_MASK_VALUE |
+ SNDRV_CTL_EVENT_MASK_INFO,
+ &pcm->eld_ctl->id);
}
static int hdac_hdmi_add_ports(struct hdac_device *hdev,
@@ -1411,6 +1424,122 @@ static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
}
+static int hdac_hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+ struct hdac_hdmi_pcm *pcm;
+ struct hdac_hdmi_port *port;
+ struct hdac_hdmi_eld *eld;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+ uinfo->count = 0;
+
+ pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
+ if (!pcm) {
+ dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
+ kcontrol->id.device);
+ return 0;
+ }
+
+ if (list_empty(&pcm->port_list)) {
+ dev_dbg(component->dev, "%s: empty port list, device %d\n",
+ __func__, kcontrol->id.device);
+ return 0;
+ }
+
+ mutex_lock(&hdmi->pin_mutex);
+
+ list_for_each_entry(port, &pcm->port_list, head) {
+ eld = &port->eld;
+
+ if (eld->eld_valid) {
+ uinfo->count = eld->eld_size;
+ break;
+ }
+ }
+
+ mutex_unlock(&hdmi->pin_mutex);
+
+ return 0;
+}
+
+static int hdac_hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
+ struct hdac_hdmi_pcm *pcm;
+ struct hdac_hdmi_port *port;
+ struct hdac_hdmi_eld *eld;
+
+ memset(ucontrol->value.bytes.data, 0, sizeof(ucontrol->value.bytes.data));
+
+ pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
+ if (!pcm) {
+ dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
+ kcontrol->id.device);
+ return 0;
+ }
+
+ if (list_empty(&pcm->port_list)) {
+ dev_dbg(component->dev, "%s: empty port list, device %d\n",
+ __func__, kcontrol->id.device);
+ return 0;
+ }
+
+ mutex_lock(&hdmi->pin_mutex);
+
+ list_for_each_entry(port, &pcm->port_list, head) {
+ eld = &port->eld;
+
+ if (!eld->eld_valid)
+ continue;
+
+ if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
+ eld->eld_size > ELD_MAX_SIZE) {
+ mutex_unlock(&hdmi->pin_mutex);
+
+ dev_err(component->dev, "%s: buffer too small, device %d eld_size %d\n",
+ __func__, kcontrol->id.device, eld->eld_size);
+ snd_BUG();
+ return -EINVAL;
+ }
+
+ memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
+ eld->eld_size);
+ break;
+ }
+
+ mutex_unlock(&hdmi->pin_mutex);
+
+ return 0;
+}
+
+static int hdac_hdmi_create_eld_ctl(struct snd_soc_component *component, struct hdac_hdmi_pcm *pcm)
+{
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_new hdmi_eld_ctl = {
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "ELD",
+ .info = hdac_hdmi_eld_ctl_info,
+ .get = hdac_hdmi_eld_ctl_get,
+ .device = pcm->pcm_id,
+ };
+
+ /* add ELD ctl with the device number corresponding to the PCM stream */
+ kctl = snd_ctl_new1(&hdmi_eld_ctl, component);
+ if (!kctl)
+ return -ENOMEM;
+
+ pcm->eld_ctl = kctl;
+
+ return snd_ctl_add(component->card->snd_card, kctl);
+}
+
static const struct snd_soc_dai_ops hdmi_dai_ops = {
.startup = hdac_hdmi_pcm_open,
.shutdown = hdac_hdmi_pcm_close,
@@ -1564,7 +1693,7 @@ static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
{
struct hdac_device *hdev = aptr;
struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
- struct hdac_hdmi_pin *pin = NULL;
+ struct hdac_hdmi_pin *pin;
struct hdac_hdmi_port *hport = NULL;
struct snd_soc_component *component = hdmi->component;
int i;
@@ -1784,6 +1913,15 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
}
}
+ /* add control for ELD Bytes */
+ err = hdac_hdmi_create_eld_ctl(component, pcm);
+ if (err < 0) {
+ dev_err(&hdev->dev,
+ "eld control add failed with err: %d for pcm: %d\n",
+ err, device);
+ return err;
+ }
+
list_add_tail(&pcm->head, &hdmi->pcm_list);
return 0;
@@ -1820,7 +1958,7 @@ static int hdmi_codec_probe(struct snd_soc_component *component)
struct hdac_device *hdev = hdmi->hdev;
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
- struct hdac_ext_link *hlink = NULL;
+ struct hdac_ext_link *hlink;
int ret;
hdmi->component = component;
@@ -1920,7 +2058,6 @@ static const struct snd_soc_component_driver hdmi_hda_codec = {
.remove = hdmi_codec_remove,
.use_pmdown_time = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
@@ -1998,11 +2135,11 @@ static struct hdac_hdmi_drv_data intel_drv_data = {
static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
{
- struct hdac_hdmi_priv *hdmi_priv = NULL;
+ struct hdac_hdmi_priv *hdmi_priv;
struct snd_soc_dai_driver *hdmi_dais = NULL;
- struct hdac_ext_link *hlink = NULL;
+ struct hdac_ext_link *hlink;
int num_dais = 0;
- int ret = 0;
+ int ret;
struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
@@ -2089,7 +2226,7 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
{
struct hdac_device *hdev = dev_to_hdac_dev(dev);
struct hdac_bus *bus = hdev->bus;
- struct hdac_ext_link *hlink = NULL;
+ struct hdac_ext_link *hlink;
dev_dbg(dev, "Enter: %s\n", __func__);
@@ -2097,8 +2234,6 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
if (!bus)
return 0;
- clear_dapm_works(hdev);
-
/*
* Power down afg.
* codec_read is preferred over codec_write to set the power state.
@@ -2127,7 +2262,7 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
{
struct hdac_device *hdev = dev_to_hdac_dev(dev);
struct hdac_bus *bus = hdev->bus;
- struct hdac_ext_link *hlink = NULL;
+ struct hdac_ext_link *hlink;
dev_dbg(dev, "Enter: %s\n", __func__);
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