Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 688 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
new file mode 100644
index 000000000..588059428
--- /dev/null
+++ b/sound/pci/hda/hda_jack.c
@@ -0,0 +1,688 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Jack-detection handling for HD-audio
+ *
+ * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/jack.h>
+#include <sound/hda_codec.h>
+#include "hda_local.h"
+#include "hda_auto_parser.h"
+#include "hda_jack.h"
+
+/**
+ * is_jack_detectable - Check whether the given pin is jack-detectable
+ * @codec: the HDA codec
+ * @nid: pin NID
+ *
+ * Check whether the given pin is capable to report the jack detection.
+ * The jack detection might not work by various reasons, e.g. the jack
+ * detection is prohibited in the codec level, the pin config has
+ * AC_DEFCFG_MISC_NO_PRESENCE bit, no unsol support, etc.
+ */
+bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
+{
+	if (codec->no_jack_detect)
+		return false;
+	if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
+		return false;
+	if (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
+	     AC_DEFCFG_MISC_NO_PRESENCE)
+		return false;
+	if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP) &&
+	    !codec->jackpoll_interval)
+		return false;
+	return true;
+}
+EXPORT_SYMBOL_GPL(is_jack_detectable);
+
+/* execute pin sense measurement */
+static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id)
+{
+	u32 pincap;
+	u32 val;
+
+	if (!codec->no_trigger_sense) {
+		pincap = snd_hda_query_pin_caps(codec, nid);
+		if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
+			snd_hda_codec_read(codec, nid, 0,
+					AC_VERB_SET_PIN_SENSE, 0);
+	}
+	val = snd_hda_codec_read(codec, nid, 0,
+				  AC_VERB_GET_PIN_SENSE, dev_id);
+	if (codec->inv_jack_detect)
+		val ^= AC_PINSENSE_PRESENCE;
+	return val;
+}
+
+/**
+ * snd_hda_jack_tbl_get_mst - query the jack-table entry for the given NID
+ * @codec: the HDA codec
+ * @nid: pin NID to refer to
+ * @dev_id: pin device entry id
+ */
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get_mst(struct hda_codec *codec, hda_nid_t nid, int dev_id)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	if (!nid || !jack)
+		return NULL;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->nid == nid && jack->dev_id == dev_id)
+			return jack;
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_tbl_get_mst);
+
+/**
+ * snd_hda_jack_tbl_get_from_tag - query the jack-table entry for the given tag
+ * @codec: the HDA codec
+ * @tag: tag value to refer to
+ * @dev_id: pin device entry id
+ */
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec,
+			      unsigned char tag, int dev_id)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	if (!tag || !jack)
+		return NULL;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->tag == tag && jack->dev_id == dev_id)
+			return jack;
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_tbl_get_from_tag);
+
+static struct hda_jack_tbl *
+any_jack_tbl_get_from_nid(struct hda_codec *codec, hda_nid_t nid)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	if (!nid || !jack)
+		return NULL;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->nid == nid)
+			return jack;
+	return NULL;
+}
+
+/**
+ * snd_hda_jack_tbl_new - create a jack-table entry for the given NID
+ * @codec: the HDA codec
+ * @nid: pin NID to assign
+ * @dev_id: pin device entry id
+ */
+static struct hda_jack_tbl *
+snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid, int dev_id)
+{
+	struct hda_jack_tbl *jack =
+		snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
+	struct hda_jack_tbl *existing_nid_jack =
+		any_jack_tbl_get_from_nid(codec, nid);
+
+	WARN_ON(dev_id != 0 && !codec->dp_mst);
+
+	if (jack)
+		return jack;
+	jack = snd_array_new(&codec->jacktbl);
+	if (!jack)
+		return NULL;
+	jack->nid = nid;
+	jack->dev_id = dev_id;
+	jack->jack_dirty = 1;
+	if (existing_nid_jack) {
+		jack->tag = existing_nid_jack->tag;
+
+		/*
+		 * Copy jack_detect from existing_nid_jack to avoid
+		 * snd_hda_jack_detect_enable_callback_mst() making multiple
+		 * SET_UNSOLICITED_ENABLE calls on the same pin.
+		 */
+		jack->jack_detect = existing_nid_jack->jack_detect;
+	} else {
+		jack->tag = codec->jacktbl.used;
+	}
+
+	return jack;
+}
+
+void snd_hda_jack_tbl_clear(struct hda_codec *codec)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	for (i = 0; i < codec->jacktbl.used; i++, jack++) {
+		struct hda_jack_callback *cb, *next;
+
+		/* free jack instances manually when clearing/reconfiguring */
+		if (!codec->bus->shutdown && jack->jack)
+			snd_device_free(codec->card, jack->jack);
+
+		for (cb = jack->callback; cb; cb = next) {
+			next = cb->next;
+			kfree(cb);
+		}
+	}
+	snd_array_free(&codec->jacktbl);
+}
+
+#define get_jack_plug_state(sense) !!(sense & AC_PINSENSE_PRESENCE)
+
+/* update the cached value and notification flag if needed */
+static void jack_detect_update(struct hda_codec *codec,
+			       struct hda_jack_tbl *jack)
+{
+	if (!jack->jack_dirty)
+		return;
+
+	if (jack->phantom_jack)
+		jack->pin_sense = AC_PINSENSE_PRESENCE;
+	else
+		jack->pin_sense = read_pin_sense(codec, jack->nid,
+						 jack->dev_id);
+
+	/* A gating jack indicates the jack is invalid if gating is unplugged */
+	if (jack->gating_jack &&
+	    !snd_hda_jack_detect_mst(codec, jack->gating_jack, jack->dev_id))
+		jack->pin_sense &= ~AC_PINSENSE_PRESENCE;
+
+	jack->jack_dirty = 0;
+
+	/* If a jack is gated by this one update it. */
+	if (jack->gated_jack) {
+		struct hda_jack_tbl *gated =
+			snd_hda_jack_tbl_get_mst(codec, jack->gated_jack,
+						 jack->dev_id);
+		if (gated) {
+			gated->jack_dirty = 1;
+			jack_detect_update(codec, gated);
+		}
+	}
+}
+
+/**
+ * snd_hda_set_dirty_all - Mark all the cached as dirty
+ * @codec: the HDA codec
+ *
+ * This function sets the dirty flag to all entries of jack table.
+ * It's called from the resume path in hda_codec.c.
+ */
+void snd_hda_jack_set_dirty_all(struct hda_codec *codec)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->nid)
+			jack->jack_dirty = 1;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_set_dirty_all);
+
+/**
+ * snd_hda_jack_pin_sense - execute pin sense measurement
+ * @codec: the CODEC to sense
+ * @nid: the pin NID to sense
+ * @dev_id: pin device entry id
+ *
+ * Execute necessary pin sense measurement and return its Presence Detect,
+ * Impedance, ELD Valid etc. status bits.
+ */
+u32 snd_hda_jack_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id)
+{
+	struct hda_jack_tbl *jack =
+		snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
+	if (jack) {
+		jack_detect_update(codec, jack);
+		return jack->pin_sense;
+	}
+	return read_pin_sense(codec, nid, dev_id);
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_pin_sense);
+
+/**
+ * snd_hda_jack_detect_state_mst - query pin Presence Detect status
+ * @codec: the CODEC to sense
+ * @nid: the pin NID to sense
+ * @dev_id: pin device entry id
+ *
+ * Query and return the pin's Presence Detect status, as either
+ * HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT or HDA_JACK_PHANTOM.
+ */
+int snd_hda_jack_detect_state_mst(struct hda_codec *codec,
+				  hda_nid_t nid, int dev_id)
+{
+	struct hda_jack_tbl *jack =
+		snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
+	if (jack && jack->phantom_jack)
+		return HDA_JACK_PHANTOM;
+	else if (snd_hda_jack_pin_sense(codec, nid, dev_id) &
+		 AC_PINSENSE_PRESENCE)
+		return HDA_JACK_PRESENT;
+	else
+		return HDA_JACK_NOT_PRESENT;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_detect_state_mst);
+
+static struct hda_jack_callback *
+find_callback_from_list(struct hda_jack_tbl *jack,
+			hda_jack_callback_fn func)
+{
+	struct hda_jack_callback *cb;
+
+	if (!func)
+		return NULL;
+
+	for (cb = jack->callback; cb; cb = cb->next) {
+		if (cb->func == func)
+			return cb;
+	}
+
+	return NULL;
+}
+
+/**
+ * snd_hda_jack_detect_enable_mst - enable the jack-detection
+ * @codec: the HDA codec
+ * @nid: pin NID to enable
+ * @func: callback function to register
+ * @dev_id: pin device entry id
+ *
+ * In the case of error, the return value will be a pointer embedded with
+ * errno.  Check and handle the return value appropriately with standard
+ * macros such as @IS_ERR() and @PTR_ERR().
+ */
+struct hda_jack_callback *
+snd_hda_jack_detect_enable_callback_mst(struct hda_codec *codec, hda_nid_t nid,
+					int dev_id, hda_jack_callback_fn func)
+{
+	struct hda_jack_tbl *jack;
+	struct hda_jack_callback *callback = NULL;
+	int err;
+
+	jack = snd_hda_jack_tbl_new(codec, nid, dev_id);
+	if (!jack)
+		return ERR_PTR(-ENOMEM);
+
+	callback = find_callback_from_list(jack, func);
+
+	if (func && !callback) {
+		callback = kzalloc(sizeof(*callback), GFP_KERNEL);
+		if (!callback)
+			return ERR_PTR(-ENOMEM);
+		callback->func = func;
+		callback->nid = jack->nid;
+		callback->dev_id = jack->dev_id;
+		callback->next = jack->callback;
+		jack->callback = callback;
+	}
+
+	if (jack->jack_detect)
+		return callback; /* already registered */
+	jack->jack_detect = 1;
+	if (codec->jackpoll_interval > 0)
+		return callback; /* No unsol if we're polling instead */
+	err = snd_hda_codec_write_cache(codec, nid, 0,
+					 AC_VERB_SET_UNSOLICITED_ENABLE,
+					 AC_USRSP_EN | jack->tag);
+	if (err < 0)
+		return ERR_PTR(err);
+	return callback;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_detect_enable_callback_mst);
+
+/**
+ * snd_hda_jack_detect_enable - Enable the jack detection on the given pin
+ * @codec: the HDA codec
+ * @nid: pin NID to enable jack detection
+ * @dev_id: pin device entry id
+ *
+ * Enable the jack detection with the default callback.  Returns zero if
+ * successful or a negative error code.
+ */
+int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
+			       int dev_id)
+{
+	return PTR_ERR_OR_ZERO(snd_hda_jack_detect_enable_callback_mst(codec,
+								       nid,
+								       dev_id,
+								       NULL));
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_detect_enable);
+
+/**
+ * snd_hda_jack_set_gating_jack - Set gating jack.
+ * @codec: the HDA codec
+ * @gated_nid: gated pin NID
+ * @gating_nid: gating pin NID
+ *
+ * Indicates the gated jack is only valid when the gating jack is plugged.
+ */
+int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
+				 hda_nid_t gating_nid)
+{
+	struct hda_jack_tbl *gated = snd_hda_jack_tbl_new(codec, gated_nid, 0);
+	struct hda_jack_tbl *gating =
+		snd_hda_jack_tbl_new(codec, gating_nid, 0);
+
+	WARN_ON(codec->dp_mst);
+
+	if (!gated || !gating)
+		return -EINVAL;
+
+	gated->gating_jack = gating_nid;
+	gating->gated_jack = gated_nid;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_set_gating_jack);
+
+/**
+ * snd_hda_jack_report_sync - sync the states of all jacks and report if changed
+ * @codec: the HDA codec
+ */
+void snd_hda_jack_report_sync(struct hda_codec *codec)
+{
+	struct hda_jack_tbl *jack;
+	int i, state;
+
+	/* update all jacks at first */
+	jack = codec->jacktbl.list;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->nid)
+			jack_detect_update(codec, jack);
+
+	/* report the updated jacks; it's done after updating all jacks
+	 * to make sure that all gating jacks properly have been set
+	 */
+	jack = codec->jacktbl.list;
+	for (i = 0; i < codec->jacktbl.used; i++, jack++)
+		if (jack->nid) {
+			if (!jack->jack || jack->block_report)
+				continue;
+			state = jack->button_state;
+			if (get_jack_plug_state(jack->pin_sense))
+				state |= jack->type;
+			snd_jack_report(jack->jack, state);
+			if (jack->button_state) {
+				snd_jack_report(jack->jack,
+						state & ~jack->button_state);
+				jack->button_state = 0; /* button released */
+			}
+		}
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_report_sync);
+
+/* guess the jack type from the pin-config */
+static int get_input_jack_type(struct hda_codec *codec, hda_nid_t nid)
+{
+	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
+	switch (get_defcfg_device(def_conf)) {
+	case AC_JACK_LINE_OUT:
+	case AC_JACK_SPEAKER:
+		return SND_JACK_LINEOUT;
+	case AC_JACK_HP_OUT:
+		return SND_JACK_HEADPHONE;
+	case AC_JACK_SPDIF_OUT:
+	case AC_JACK_DIG_OTHER_OUT:
+		return SND_JACK_AVOUT;
+	case AC_JACK_MIC_IN:
+		return SND_JACK_MICROPHONE;
+	default:
+		return SND_JACK_LINEIN;
+	}
+}
+
+static void hda_free_jack_priv(struct snd_jack *jack)
+{
+	struct hda_jack_tbl *jacks = jack->private_data;
+	jacks->nid = 0;
+	jacks->jack = NULL;
+}
+
+/**
+ * snd_hda_jack_add_kctl_mst - Add a kctl for the given pin
+ * @codec: the HDA codec
+ * @nid: pin NID to assign
+ * @dev_id : pin device entry id
+ * @name: string name for the jack
+ * @phantom_jack: flag to deal as a phantom jack
+ * @type: jack type bits to be reported, 0 for guessing from pincfg
+ * @keymap: optional jack / key mapping
+ *
+ * This assigns a jack-detection kctl to the given pin.  The kcontrol
+ * will have the given name and index.
+ */
+int snd_hda_jack_add_kctl_mst(struct hda_codec *codec, hda_nid_t nid,
+			      int dev_id, const char *name, bool phantom_jack,
+			      int type, const struct hda_jack_keymap *keymap)
+{
+	struct hda_jack_tbl *jack;
+	const struct hda_jack_keymap *map;
+	int err, state, buttons;
+
+	jack = snd_hda_jack_tbl_new(codec, nid, dev_id);
+	if (!jack)
+		return 0;
+	if (jack->jack)
+		return 0; /* already created */
+
+	if (!type)
+		type = get_input_jack_type(codec, nid);
+
+	buttons = 0;
+	if (keymap) {
+		for (map = keymap; map->type; map++)
+			buttons |= map->type;
+	}
+
+	err = snd_jack_new(codec->card, name, type | buttons,
+			   &jack->jack, true, phantom_jack);
+	if (err < 0)
+		return err;
+
+	jack->phantom_jack = !!phantom_jack;
+	jack->type = type;
+	jack->button_state = 0;
+	jack->jack->private_data = jack;
+	jack->jack->private_free = hda_free_jack_priv;
+	if (keymap) {
+		for (map = keymap; map->type; map++)
+			snd_jack_set_key(jack->jack, map->type, map->key);
+	}
+
+	state = snd_hda_jack_detect_mst(codec, nid, dev_id);
+	snd_jack_report(jack->jack, state ? jack->type : 0);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_add_kctl_mst);
+
+static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
+			 const struct auto_pin_cfg *cfg,
+			 const char *base_name)
+{
+	unsigned int def_conf, conn;
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	int err;
+	bool phantom_jack;
+
+	WARN_ON(codec->dp_mst);
+
+	if (!nid)
+		return 0;
+	def_conf = snd_hda_codec_get_pincfg(codec, nid);
+	conn = get_defcfg_connect(def_conf);
+	if (conn == AC_JACK_PORT_NONE)
+		return 0;
+	phantom_jack = (conn != AC_JACK_PORT_COMPLEX) ||
+		       !is_jack_detectable(codec, nid);
+
+	if (base_name)
+		strlcpy(name, base_name, sizeof(name));
+	else
+		snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), NULL);
+	if (phantom_jack)
+		/* Example final name: "Internal Mic Phantom Jack" */
+		strncat(name, " Phantom", sizeof(name) - strlen(name) - 1);
+	err = snd_hda_jack_add_kctl(codec, nid, name, phantom_jack, 0, NULL);
+	if (err < 0)
+		return err;
+
+	if (!phantom_jack)
+		return snd_hda_jack_detect_enable(codec, nid, 0);
+	return 0;
+}
+
+/**
+ * snd_hda_jack_add_kctls - Add kctls for all pins included in the given pincfg
+ * @codec: the HDA codec
+ * @cfg: pin config table to parse
+ */
+int snd_hda_jack_add_kctls(struct hda_codec *codec,
+			   const struct auto_pin_cfg *cfg)
+{
+	const hda_nid_t *p;
+	int i, err;
+
+	for (i = 0; i < cfg->num_inputs; i++) {
+		/* If we have headphone mics; make sure they get the right name
+		   before grabbed by output pins */
+		if (cfg->inputs[i].is_headphone_mic) {
+			if (auto_cfg_hp_outs(cfg) == 1)
+				err = add_jack_kctl(codec, auto_cfg_hp_pins(cfg)[0],
+						    cfg, "Headphone Mic");
+			else
+				err = add_jack_kctl(codec, cfg->inputs[i].pin,
+						    cfg, "Headphone Mic");
+		} else
+			err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg,
+					    NULL);
+		if (err < 0)
+			return err;
+	}
+
+	for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) {
+		err = add_jack_kctl(codec, *p, cfg, NULL);
+		if (err < 0)
+			return err;
+	}
+	for (i = 0, p = cfg->hp_pins; i < cfg->hp_outs; i++, p++) {
+		if (*p == *cfg->line_out_pins) /* might be duplicated */
+			break;
+		err = add_jack_kctl(codec, *p, cfg, NULL);
+		if (err < 0)
+			return err;
+	}
+	for (i = 0, p = cfg->speaker_pins; i < cfg->speaker_outs; i++, p++) {
+		if (*p == *cfg->line_out_pins) /* might be duplicated */
+			break;
+		err = add_jack_kctl(codec, *p, cfg, NULL);
+		if (err < 0)
+			return err;
+	}
+	for (i = 0, p = cfg->dig_out_pins; i < cfg->dig_outs; i++, p++) {
+		err = add_jack_kctl(codec, *p, cfg, NULL);
+		if (err < 0)
+			return err;
+	}
+	err = add_jack_kctl(codec, cfg->dig_in_pin, cfg, NULL);
+	if (err < 0)
+		return err;
+	err = add_jack_kctl(codec, cfg->mono_out_pin, cfg, NULL);
+	if (err < 0)
+		return err;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_add_kctls);
+
+static void call_jack_callback(struct hda_codec *codec, unsigned int res,
+			       struct hda_jack_tbl *jack)
+{
+	struct hda_jack_callback *cb;
+
+	for (cb = jack->callback; cb; cb = cb->next) {
+		cb->jack = jack;
+		cb->unsol_res = res;
+		cb->func(codec, cb);
+	}
+	if (jack->gated_jack) {
+		struct hda_jack_tbl *gated =
+			snd_hda_jack_tbl_get_mst(codec, jack->gated_jack,
+						 jack->dev_id);
+		if (gated) {
+			for (cb = gated->callback; cb; cb = cb->next) {
+				cb->jack = gated;
+				cb->unsol_res = res;
+				cb->func(codec, cb);
+			}
+		}
+	}
+}
+
+/**
+ * snd_hda_jack_unsol_event - Handle an unsolicited event
+ * @codec: the HDA codec
+ * @res: the unsolicited event data
+ */
+void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res)
+{
+	struct hda_jack_tbl *event;
+	int tag = (res & AC_UNSOL_RES_TAG) >> AC_UNSOL_RES_TAG_SHIFT;
+
+	if (codec->dp_mst) {
+		int dev_entry =
+			(res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
+
+		event = snd_hda_jack_tbl_get_from_tag(codec, tag, dev_entry);
+	} else {
+		event = snd_hda_jack_tbl_get_from_tag(codec, tag, 0);
+	}
+	if (!event)
+		return;
+	event->jack_dirty = 1;
+
+	call_jack_callback(codec, res, event);
+	snd_hda_jack_report_sync(codec);
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_unsol_event);
+
+/**
+ * snd_hda_jack_poll_all - Poll all jacks
+ * @codec: the HDA codec
+ *
+ * Poll all detectable jacks with dirty flag, update the status, call
+ * callbacks and call snd_hda_jack_report_sync() if any changes are found.
+ */
+void snd_hda_jack_poll_all(struct hda_codec *codec)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i, changes = 0;
+
+	for (i = 0; i < codec->jacktbl.used; i++, jack++) {
+		unsigned int old_sense;
+		if (!jack->nid || !jack->jack_dirty || jack->phantom_jack)
+			continue;
+		old_sense = get_jack_plug_state(jack->pin_sense);
+		jack_detect_update(codec, jack);
+		if (old_sense == get_jack_plug_state(jack->pin_sense))
+			continue;
+		changes = 1;
+		call_jack_callback(codec, 0, jack);
+	}
+	if (changes)
+		snd_hda_jack_report_sync(codec);
+}
+EXPORT_SYMBOL_GPL(snd_hda_jack_poll_all);
+