[alsa-devel] [PATCH v6 07/15] ASoC: hdac_hdmi: Enable playback on all enumerated ports
Subhransu S. Prusty
subhransu.s.prusty at intel.com
Fri Feb 12 03:16:07 CET 2016
Last patch added infrastructure to render over all the ports,
PCM<->cvt<- pin mapping and user selection of controls. But we
still have restriction of playback on the default port alone, so
remove that.
This patch removes the hardcoding of cvt<->pin map from the dai.
Cvt and pin for a dai are now derived from the already stored pcm
list of device opened. We query connection list of a pin from
codec to validate the cvt<->pin map.
If connection list returns zero, then monitor is not connected so
fail playback.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
sound/soc/codecs/hdac_hdmi.c | 174 ++++++++++++++++++++++++++++++++-----------
1 file changed, 132 insertions(+), 42 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 8391486..dcd1cb6 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -40,6 +40,8 @@
#define HDA_MAX_CONNECTIONS 32
+#define HDA_MAX_CVTS 3
+
#define ELD_MAX_SIZE 256
#define ELD_FIXED_BYTES 20
@@ -91,7 +93,7 @@ struct hdac_hdmi_dai_pin_map {
};
struct hdac_hdmi_priv {
- struct hdac_hdmi_dai_pin_map dai_map[3];
+ struct hdac_hdmi_dai_pin_map dai_map[HDA_MAX_CVTS];
struct list_head pin_list;
struct list_head cvt_list;
struct list_head pcm_list;
@@ -384,44 +386,136 @@ static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream,
return 0;
}
+static int hdac_hdmi_enable_pin(struct hdac_ext_device *hdac,
+ struct hdac_hdmi_dai_pin_map *dai_map)
+{
+ int mux_idx;
+ struct hdac_hdmi_pin *pin = dai_map->pin;
+
+ for (mux_idx = 0; mux_idx < pin->num_mux_nids; mux_idx++) {
+ if (pin->mux_nids[mux_idx] == dai_map->cvt->nid) {
+ snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+ AC_VERB_SET_CONNECT_SEL, mux_idx);
+ break;
+ }
+ }
+
+ if (mux_idx == pin->num_mux_nids)
+ return -EIO;
+
+ /* Enable out path for this pin widget */
+ snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+ AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+
+ hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
+
+ snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+ AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+
+ return 0;
+}
+
+static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac,
+ struct hdac_hdmi_pin *pin)
+{
+ if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
+ dev_warn(&hdac->hdac.dev,
+ "HDMI: pin %d wcaps %#x does not support connection list\n",
+ pin->nid, get_wcaps(&hdac->hdac, pin->nid));
+ return -EINVAL;
+ }
+
+ pin->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
+ pin->mux_nids, HDA_MAX_CONNECTIONS);
+ if (pin->num_mux_nids == 0)
+ dev_warn(&hdac->hdac.dev, "No connections found for pin: %d\n",
+ pin->nid);
+
+ dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin: %d\n",
+ pin->num_mux_nids, pin->nid);
+
+ return pin->num_mux_nids;
+}
+
+/*
+ * Query pcm list and return pin widget to which stream is routed.
+ *
+ * Also query connection list of the pin, to validate the cvt to pin map.
+ *
+ * Same stream rendering to multiple pins simultaneously can be done
+ * possibly, but not supported for now in driver. So return the first pin
+ * connected.
+ */
+static struct hdac_hdmi_pin *hdac_hdmi_get_pin_from_cvt(
+ struct hdac_ext_device *edev,
+ struct hdac_hdmi_priv *hdmi,
+ struct hdac_hdmi_cvt *cvt)
+{
+ struct hdac_hdmi_pcm *pcm;
+ struct hdac_hdmi_pin *pin = NULL;
+ int ret, i;
+
+ list_for_each_entry(pcm, &hdmi->pcm_list, head) {
+ if (pcm->cvt == cvt) {
+ pin = pcm->pin;
+ break;
+ }
+ }
+
+ if (pin) {
+ ret = hdac_hdmi_query_pin_connlist(edev, pin);
+ if (ret < 0)
+ return NULL;
+
+ for (i = 0; i < pin->num_mux_nids; i++) {
+ if (pin->mux_nids[i] == cvt->nid)
+ return pin;
+ }
+ }
+
+ return NULL;
+}
+
static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
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_cvt *cvt;
+ struct hdac_hdmi_pin *pin;
int ret;
- if (dai->id > 0) {
- dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
- return -ENODEV;
- }
-
dai_map = &hdmi->dai_map[dai->id];
- if ((!dai_map->pin->eld.monitor_present) ||
- (!dai_map->pin->eld.eld_valid)) {
+ cvt = dai_map->cvt;
+ pin = hdac_hdmi_get_pin_from_cvt(hdac, hdmi, cvt);
+ if (!pin)
+ return -EIO;
+
+ if ((!pin->eld.monitor_present) ||
+ (!pin->eld.eld_valid)) {
dev_err(&hdac->hdac.dev,
- "Failed: montior present? %d ELD valid?: %d\n",
- dai_map->pin->eld.monitor_present,
- dai_map->pin->eld.eld_valid);
+ "Failed: montior present? %d ELD valid?: %d for pin: %d\n",
+ pin->eld.monitor_present, pin->eld.eld_valid, pin->nid);
return -ENODEV;
}
- hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
+ dai_map->pin = pin;
- snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
- AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+ ret = hdac_hdmi_enable_pin(hdac, dai_map);
+ if (ret < 0)
+ return ret;
ret = hdac_hdmi_eld_limit_formats(substream->runtime,
- dai_map->pin->eld.eld_buffer);
+ pin->eld.eld_buffer);
if (ret < 0)
return ret;
return snd_pcm_hw_constraint_eld(substream->runtime,
- dai_map->pin->eld.eld_buffer);
+ pin->eld.eld_buffer);
}
static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
@@ -437,6 +531,8 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+
+ dai_map->pin = NULL;
}
static int
@@ -759,40 +855,34 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
{
struct hdac_hdmi_priv *hdmi = edev->private_data;
- struct hdac_hdmi_dai_pin_map *dai_map = &hdmi->dai_map[0];
+ struct hdac_hdmi_dai_pin_map *dai_map;
struct hdac_hdmi_cvt *cvt;
- struct hdac_hdmi_pin *pin;
+ int dai_id = 0;
- if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
+ if (list_empty(&hdmi->cvt_list))
return -EINVAL;
- /*
- * Currently on board only 1 pin and 1 converter is enabled for
- * simplification, more will be added eventually
- * So using fixed map for dai_id:pin:cvt
- */
- cvt = list_first_entry(&hdmi->cvt_list, struct hdac_hdmi_cvt, head);
- pin = list_first_entry(&hdmi->pin_list, struct hdac_hdmi_pin, head);
-
- dai_map->dai_id = 0;
- dai_map->pin = pin;
+ list_for_each_entry(cvt, &hdmi->cvt_list, head) {
+ dai_map = &hdmi->dai_map[dai_id];
+ dai_map->dai_id = dai_id;
+ dai_map->cvt = cvt;
- dai_map->cvt = cvt;
+ /* Enable transmission */
+ snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_1, 1);
- /* Enable out path for this pin widget */
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
- AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+ /* Category Code (CC) to zero */
+ snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
+ AC_VERB_SET_DIGI_CONVERT_2, 0);
- /* Enable transmission */
- snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
- AC_VERB_SET_DIGI_CONVERT_1, 1);
+ dai_id++;
- /* Category Code (CC) to zero */
- snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
- AC_VERB_SET_DIGI_CONVERT_2, 0);
-
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
- AC_VERB_SET_CONNECT_SEL, 0);
+ if (dai_id == HDA_MAX_CVTS) {
+ dev_warn(&edev->hdac.dev,
+ "Max dais supported: %d\n", dai_id);
+ break;
+ }
+ }
return 0;
}
--
1.9.1
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