From 19a2557b76d64f26c761925cb4fecefb5d72c099 Mon Sep 17 00:00:00 2001 From: Jeeja KP Date: Tue, 20 Oct 2015 22:30:06 +0530 Subject: [PATCH 1/3] ASoC: dapm: Add kcontrol support for PGAs For DSPs we can define processing blocks as DAPM PGA widgets. Some of these proceesing blocks can be configured by usermode like EQ etc. So we need to add support of kcontrol for PGA widgets. Signed-off-by: Jeeja KP Signed-off-by: Mythri P K Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index f4bf21a5539b..9762ac4efdeb 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -779,7 +779,7 @@ static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, * Determine if a kcontrol is shared. If it is, look it up. If it isn't, * create it. Either way, add the widget into the control's widget list */ -static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, +static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, int kci) { struct snd_soc_dapm_context *dapm = w->dapm; @@ -810,6 +810,7 @@ static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, switch (w->id) { case snd_soc_dapm_switch: case snd_soc_dapm_mixer: + case snd_soc_dapm_pga: wname_in_long_name = true; kcname_in_long_name = true; break; @@ -899,7 +900,7 @@ static int dapm_new_mixer(struct snd_soc_dapm_widget *w) continue; if (!w->kcontrols[i]) { - ret = dapm_create_or_share_mixmux_kcontrol(w, i); + ret = dapm_create_or_share_kcontrol(w, i); if (ret < 0) return ret; } @@ -952,7 +953,7 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w) return -EINVAL; } - ret = dapm_create_or_share_mixmux_kcontrol(w, 0); + ret = dapm_create_or_share_kcontrol(w, 0); if (ret < 0) return ret; @@ -967,9 +968,13 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w) /* create new dapm volume control */ static int dapm_new_pga(struct snd_soc_dapm_widget *w) { - if (w->num_kcontrols) - dev_err(w->dapm->dev, - "ASoC: PGA controls not supported: '%s'\n", w->name); + int i, ret; + + for (i = 0; i < w->num_kcontrols; i++) { + ret = dapm_create_or_share_kcontrol(w, i); + if (ret < 0) + return ret; + } return 0; } From 9b8ef9f6b3fcccc2b6ce4bb59d8ab55b36a8b8f0 Mon Sep 17 00:00:00 2001 From: Jeeja KP Date: Tue, 20 Oct 2015 22:30:07 +0530 Subject: [PATCH 2/3] ASoC: dapm: Add startup & shutdown for dai_links For DAI link events, DSPs would like to get notified for startup and shutdown event as well apart for existing hw_params. This helps managing DSP resource allocation and freeup on these events So add support for startup and shutdown for snd_soc_dai_link_event() Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 9762ac4efdeb..a28d6a10bad0 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3478,11 +3478,29 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_PRE_PMU: substream.stream = SNDRV_PCM_STREAM_CAPTURE; + if (source->driver->ops && source->driver->ops->startup) { + ret = source->driver->ops->startup(&substream, source); + if (ret < 0) { + dev_err(source->dev, + "ASoC: startup() failed: %d\n", ret); + goto out; + } + source->active++; + } ret = soc_dai_hw_params(&substream, params, source); if (ret < 0) goto out; substream.stream = SNDRV_PCM_STREAM_PLAYBACK; + if (sink->driver->ops && sink->driver->ops->startup) { + ret = sink->driver->ops->startup(&substream, sink); + if (ret < 0) { + dev_err(sink->dev, + "ASoC: startup() failed: %d\n", ret); + goto out; + } + sink->active++; + } ret = soc_dai_hw_params(&substream, params, sink); if (ret < 0) goto out; @@ -3502,6 +3520,18 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, if (ret != 0 && ret != -ENOTSUPP) dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); ret = 0; + + source->active--; + if (source->driver->ops && source->driver->ops->shutdown) { + substream.stream = SNDRV_PCM_STREAM_CAPTURE; + source->driver->ops->shutdown(&substream, source); + } + + sink->active--; + if (sink->driver->ops && sink->driver->ops->shutdown) { + substream.stream = SNDRV_PCM_STREAM_PLAYBACK; + sink->driver->ops->shutdown(&substream, sink); + } break; default: From 93e39a11520c000c9086215460bf27b35b09c724 Mon Sep 17 00:00:00 2001 From: Mythri P K Date: Tue, 20 Oct 2015 22:30:08 +0530 Subject: [PATCH 3/3] ASoC: dapm: Add snd_soc_dapm_kcontrol_widget() Given a kcontrol, we may want to access the parent widget and it's associated data. So export function to return it. Signed-off-by: Mythri P K Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 3 +++ sound/soc/soc-dapm.c | 12 ++++++++++++ 2 files changed, 15 insertions(+) diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 5abba037d245..7855cfe46b69 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -451,6 +451,9 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( struct snd_kcontrol *kcontrol); +struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( + struct snd_kcontrol *kcontrol); + int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index a28d6a10bad0..38281c2325ff 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -508,6 +508,18 @@ static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, return true; } +/** + * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a + * kcontrol + * @kcontrol: The kcontrol + */ +struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( + struct snd_kcontrol *kcontrol) +{ + return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); + /** * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a * kcontrol