From: "Subhransu S. Prusty" <subhransu.s.prusty@xxxxxxxxx>
The DAI ops are used fr triggering HDMI streams and configuring
the parameters
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
sound/soc/codecs/hdac_hdmi.c | 162 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 162 insertions(+)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index bc50030e16d7..40328757d568 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -26,7 +26,10 @@
#include <sound/hdaudio_ext.h>
#include "../../hda/local.h"
+#define AMP_OUT_MUTE 0xb080
+#define AMP_OUT_UNMUTE 0xb000
#define PIN_OUT (AC_PINCTL_OUT_EN)
+
#define HDA_MAX_CONNECTIONS 32
struct hdac_hdmi_cvt_params {
@@ -67,6 +70,156 @@ static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
return container_of(hdac, struct hdac_ext_device, hdac);
}
+static int hdac_hdmi_setup_stream(struct hdac_ext_device *hdac,
+ hda_nid_t cvt_nid, hda_nid_t pin_nid,
+ u32 stream_tag, int format)
+{
+ unsigned int val;
+
+ dev_dbg(&hdac->hdac.dev, "cvt nid %d pnid %d stream %d format 0x%x\n",
+ cvt_nid, pin_nid, stream_tag, format);
+
+ val = (stream_tag << 4);
+
+ snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
+ AC_VERB_SET_CHANNEL_STREAMID, val);
+ snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
+ AC_VERB_SET_STREAM_FORMAT, format);
+
+ return 0;
+}
+
+static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
+ struct hdac_hdmi_dai_pin_map *dai_map, unsigned int pwr_state)
+{
+ /* Power up pin widget */
+ if (!snd_hdac_check_power_state(&edev->hdac, dai_map->pin.nid, pwr_state))
+ snd_hdac_codec_write(&edev->hdac, dai_map->pin.nid, 0,
+ AC_VERB_SET_POWER_STATE, pwr_state);
+
+ /* Power up converter */
+ if (!snd_hdac_check_power_state(&edev->hdac, dai_map->cvt.nid, pwr_state))
+ snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+ AC_VERB_SET_POWER_STATE, pwr_state);
+}
+
+static int hdac_hdmi_playback_prepare(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_ext_dma_params *dd;
+
+ 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];
+
+ dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
+ dev_dbg(&hdac->hdac.dev, "stream tag from cpu dai %d format in cvt 0x%x\n",
+ dd->stream_tag, dd->format);
+
+ return hdac_hdmi_setup_stream(hdac, dai_map->cvt.nid, dai_map->pin.nid,
+ dd->stream_tag, dd->format);
+}
+
+static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
+{
+ struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
+ struct hdac_ext_dma_params *dd;
+
+ if (dai->id > 0) {
+ dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
+ return -ENODEV;
+ }
+
+ dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+ dd->format = snd_hdac_calc_stream_format(params_rate(hparams),
+ params_channels(hparams), params_format(hparams),
+ 24, 0);
+
+ snd_soc_dai_set_dma_data(dai, substream, (void *)dd);
+
+ return 0;
+}
+
+static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
+ struct hdac_ext_dma_params *dd;
+ struct hdac_hdmi_priv *hdmi = edev->private_data;
+ struct hdac_hdmi_dai_pin_map *dai_map;
+
+ dai_map = &hdmi->dai_map[dai->id];
+
+ snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+ AC_VERB_SET_CHANNEL_STREAMID, 0);
+ snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+ AC_VERB_SET_STREAM_FORMAT, 0);
+
+ dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
+ snd_soc_dai_set_dma_data(dai, substream, NULL);
+
+ kfree(dd);
+
+ return 0;
+}
+
+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;
+ int val;
+
+ 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];
+
+ val = snd_hdac_codec_read(&hdac->hdac, dai_map->pin.nid, 0,
+ AC_VERB_GET_PIN_SENSE, 0);
+ dev_info(&hdac->hdac.dev, "Val for AC_VERB_GET_PIN_SENSE: %x\n", val);
+
+ if ((!(val & AC_PINSENSE_PRESENCE)) || (!(val & AC_PINSENSE_ELDV))) {
+ dev_err(&hdac->hdac.dev, "Monitor presence invalid with val: %x\n", val);
+ return -ENODEV;
+ }
+
+ hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
+
+ snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0,
+ AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+
+ snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+
+ return 0;
+}
+
+static void hdac_hdmi_pcm_close(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;
+
+ dai_map = &hdmi->dai_map[dai->id];
+
+ hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3);
+
+ snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0,
+ AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+}
+
static int hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
{
int err;
@@ -286,6 +439,14 @@ static struct snd_soc_codec_driver hdmi_hda_codec = {
.idle_bias_off = true,
};
+static struct snd_soc_dai_ops hdmi_dai_ops = {
+ .startup = hdac_hdmi_pcm_open,
+ .shutdown = hdac_hdmi_pcm_close,
+ .hw_params = hdac_hdmi_set_hw_params,
+ .prepare = hdac_hdmi_playback_prepare,
+ .hw_free = hdac_hdmi_playback_cleanup,
+};
+
static struct snd_soc_dai_driver hdmi_dais[] = {
{ .name = "intel-hdmi-hif1",
.playback = {
@@ -300,6 +461,7 @@ static struct snd_soc_dai_driver hdmi_dais[] = {
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
},
+ .ops = &hdmi_dai_ops,
},
};
--
2.4.3
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