Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / Atom feed
From: Cheng-Yi Chiang <cychiang@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: alsa-devel@alsa-project.org, dianders@chromium.org,
	Heiko Stuebner <heiko@sntech.de>,
	linux-rockchip@lists.infradead.org,
	David Airlie <airlied@linux.ie>,
	dri-devel@lists.freedesktop.org, Takashi Iwai <tiwai@suse.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	tzungbi@chromium.org, Jaroslav Kysela <perex@perex.cz>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	Mark Brown <broonie@kernel.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	dgreid@chromium.org, linux-arm-kernel@lists.infradead.org,
	Cheng-Yi Chiang <cychiang@chromium.org>
Subject: [PATCH v5 1/5] ASoC: hdmi-codec: Add an op to set callback function for plug event
Date: Wed, 17 Jul 2019 16:33:23 +0800
Message-ID: <20190717083327.47646-2-cychiang@chromium.org> (raw)
In-Reply-To: <20190717083327.47646-1-cychiang@chromium.org>

Add an op in hdmi_codec_ops so codec driver can register callback
function to handle plug event.

Driver in DRM can use this callback function to report connector status.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
---
 include/sound/hdmi-codec.h    | 17 +++++++++++++
 sound/soc/codecs/hdmi-codec.c | 46 +++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)

diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h
index 7fea496f1f34..83b17682e01c 100644
--- a/include/sound/hdmi-codec.h
+++ b/include/sound/hdmi-codec.h
@@ -47,6 +47,9 @@ struct hdmi_codec_params {
 	int channels;
 };
 
+typedef void (*hdmi_codec_plugged_cb)(struct device *dev,
+				      bool plugged);
+
 struct hdmi_codec_pdata;
 struct hdmi_codec_ops {
 	/*
@@ -88,6 +91,14 @@ struct hdmi_codec_ops {
 	 */
 	int (*get_dai_id)(struct snd_soc_component *comment,
 			  struct device_node *endpoint);
+
+	/*
+	 * Hook callback function to handle connector plug event.
+	 * Optional
+	 */
+	int (*hook_plugged_cb)(struct device *dev, void *data,
+			       hdmi_codec_plugged_cb fn,
+			       struct device *codec_dev);
 };
 
 /* HDMI codec initalization data */
@@ -99,6 +110,12 @@ struct hdmi_codec_pdata {
 	void *data;
 };
 
+struct snd_soc_component;
+struct snd_soc_jack;
+
+int hdmi_codec_set_jack_detect(struct snd_soc_component *component,
+			       struct snd_soc_jack *jack);
+
 #define HDMI_CODEC_DRV_NAME "hdmi-audio-codec"
 
 #endif /* __HDMI_CODEC_H__ */
diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 0bf1c8cad108..b5fd8f08726e 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -7,6 +7,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <sound/core.h>
+#include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -274,6 +275,8 @@ struct hdmi_codec_priv {
 	struct snd_pcm_chmap *chmap_info;
 	unsigned int chmap_idx;
 	struct mutex lock;
+	struct snd_soc_jack *jack;
+	unsigned int jack_status;
 };
 
 static const struct snd_soc_dapm_widget hdmi_widgets[] = {
@@ -663,6 +666,49 @@ static int hdmi_dai_probe(struct snd_soc_dai *dai)
 	return 0;
 }
 
+static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp,
+				   unsigned int jack_status)
+{
+	if (hcp->jack && jack_status != hcp->jack_status) {
+		snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT);
+		hcp->jack_status = jack_status;
+	}
+}
+
+static void plugged_cb(struct device *dev, bool plugged)
+{
+	struct hdmi_codec_priv *hcp = dev_get_drvdata(dev);
+
+	if (plugged)
+		hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT);
+	else
+		hdmi_codec_jack_report(hcp, 0);
+}
+
+/**
+ * hdmi_codec_set_jack_detect - register HDMI plugged callback
+ * @component: the hdmi-codec instance
+ * @jack: ASoC jack to report (dis)connection events on
+ */
+int hdmi_codec_set_jack_detect(struct snd_soc_component *component,
+			       struct snd_soc_jack *jack)
+{
+	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
+	int ret = -EOPNOTSUPP;
+
+	if (hcp->hcd.ops->hook_plugged_cb) {
+		hcp->jack = jack;
+		ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent,
+						    hcp->hcd.data,
+						    plugged_cb,
+						    component->dev);
+		if (ret)
+			hcp->jack = NULL;
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(hdmi_codec_set_jack_detect);
+
 static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai)
 {
 	struct hdmi_codec_daifmt *cf = dai->playback_dma_data;
-- 
2.22.0.510.g264f2c817a-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-17  8:33 [PATCH v5 0/5] Add HDMI jack support on RK3288 Cheng-Yi Chiang
2019-07-17  8:33 ` Cheng-Yi Chiang [this message]
2019-07-17  8:33 ` [PATCH v5 2/5] drm: bridge: dw-hdmi: Report connector status using callback Cheng-Yi Chiang
2019-07-17  8:33 ` [PATCH v5 3/5] drm: dw-hdmi-i2s: Use fixed id for codec device Cheng-Yi Chiang
2019-07-17  8:33 ` [PATCH v5 4/5] ASoC: rockchip_max98090: Add dai_link for HDMI Cheng-Yi Chiang
2019-07-17  8:33 ` [PATCH v5 5/5] ASoC: rockchip_max98090: Add HDMI jack support Cheng-Yi Chiang
2019-07-17 10:28 ` [PATCH v5 0/5] Add HDMI jack support on RK3288 Tzung-Bi Shih
2019-08-30  2:55   ` Cheng-yi Chiang
2019-09-08 13:51     ` Cheng-yi Chiang
2019-09-09  7:37       ` Neil Armstrong
2019-09-09 13:53         ` Mark Brown
2019-09-13  9:32           ` Neil Armstrong
2019-09-18  7:28             ` Cheng-yi Chiang

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190717083327.47646-2-cychiang@chromium.org \
    --to=cychiang@chromium.org \
    --cc=Laurent.pinchart@ideasonboard.com \
    --cc=a.hajda@samsung.com \
    --cc=airlied@linux.ie \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=daniel@ffwll.ch \
    --cc=dgreid@chromium.org \
    --cc=dianders@chromium.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=heiko@sntech.de \
    --cc=hverkuil@xs4all.nl \
    --cc=lgirdwood@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=perex@perex.cz \
    --cc=rmk+kernel@armlinux.org.uk \
    --cc=tiwai@suse.com \
    --cc=tzungbi@chromium.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org
	public-inbox-index linux-arm-kernel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git