771 lines
20 KiB
C
771 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Jack-detection handling for HD-audio
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*
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* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
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*/
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/jack.h>
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#include <sound/hda_codec.h>
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#include "hda_local.h"
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#include "hda_auto_parser.h"
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#include "hda_jack.h"
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/**
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* is_jack_detectable - Check whether the given pin is jack-detectable
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* @codec: the HDA codec
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* @nid: pin NID
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*
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* Check whether the given pin is capable to report the jack detection.
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* The jack detection might not work by various reasons, e.g. the jack
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* detection is prohibited in the codec level, the pin config has
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* AC_DEFCFG_MISC_NO_PRESENCE bit, no unsol support, etc.
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*/
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bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
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{
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if (codec->no_jack_detect)
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return false;
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if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
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return false;
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if (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
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AC_DEFCFG_MISC_NO_PRESENCE)
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return false;
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if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP) &&
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!codec->jackpoll_interval)
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return false;
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return true;
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}
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EXPORT_SYMBOL_GPL(is_jack_detectable);
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/* execute pin sense measurement */
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static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id)
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{
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u32 pincap;
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u32 val;
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if (!codec->no_trigger_sense) {
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pincap = snd_hda_query_pin_caps(codec, nid);
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if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
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snd_hda_codec_read(codec, nid, 0,
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AC_VERB_SET_PIN_SENSE, 0);
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}
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val = snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_PIN_SENSE, dev_id);
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if (codec->inv_jack_detect)
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val ^= AC_PINSENSE_PRESENCE;
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return val;
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}
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/**
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* snd_hda_jack_tbl_get_mst - query the jack-table entry for the given NID
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* @codec: the HDA codec
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* @nid: pin NID to refer to
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* @dev_id: pin device entry id
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*/
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get_mst(struct hda_codec *codec, hda_nid_t nid, int dev_id)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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if (!nid || !jack)
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return NULL;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->nid == nid && jack->dev_id == dev_id)
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return jack;
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return NULL;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_tbl_get_mst);
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/**
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* snd_hda_jack_tbl_get_from_tag - query the jack-table entry for the given tag
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* @codec: the HDA codec
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* @tag: tag value to refer to
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* @dev_id: pin device entry id
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*/
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec,
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unsigned char tag, int dev_id)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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if (!tag || !jack)
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return NULL;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->tag == tag && jack->dev_id == dev_id)
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return jack;
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return NULL;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_tbl_get_from_tag);
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static struct hda_jack_tbl *
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any_jack_tbl_get_from_nid(struct hda_codec *codec, hda_nid_t nid)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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if (!nid || !jack)
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return NULL;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->nid == nid)
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return jack;
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return NULL;
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}
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/**
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* snd_hda_jack_tbl_new - create a jack-table entry for the given NID
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* @codec: the HDA codec
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* @nid: pin NID to assign
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* @dev_id: pin device entry id
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*/
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static struct hda_jack_tbl *
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snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid, int dev_id)
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{
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struct hda_jack_tbl *jack =
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snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
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struct hda_jack_tbl *existing_nid_jack =
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any_jack_tbl_get_from_nid(codec, nid);
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WARN_ON(dev_id != 0 && !codec->dp_mst);
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if (jack)
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return jack;
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jack = snd_array_new(&codec->jacktbl);
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if (!jack)
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return NULL;
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jack->nid = nid;
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jack->dev_id = dev_id;
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jack->jack_dirty = 1;
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if (existing_nid_jack) {
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jack->tag = existing_nid_jack->tag;
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/*
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* Copy jack_detect from existing_nid_jack to avoid
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* snd_hda_jack_detect_enable_callback_mst() making multiple
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* SET_UNSOLICITED_ENABLE calls on the same pin.
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*/
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jack->jack_detect = existing_nid_jack->jack_detect;
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} else {
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jack->tag = codec->jacktbl.used;
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}
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return jack;
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}
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void snd_hda_jack_tbl_disconnect(struct hda_codec *codec)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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for (i = 0; i < codec->jacktbl.used; i++, jack++) {
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if (!codec->bus->shutdown && jack->jack)
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snd_device_disconnect(codec->card, jack->jack);
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}
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}
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void snd_hda_jack_tbl_clear(struct hda_codec *codec)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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for (i = 0; i < codec->jacktbl.used; i++, jack++) {
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struct hda_jack_callback *cb, *next;
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/* free jack instances manually when clearing/reconfiguring */
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if (!codec->bus->shutdown && jack->jack)
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snd_device_free(codec->card, jack->jack);
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for (cb = jack->callback; cb; cb = next) {
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next = cb->next;
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kfree(cb);
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}
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}
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snd_array_free(&codec->jacktbl);
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}
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#define get_jack_plug_state(sense) !!(sense & AC_PINSENSE_PRESENCE)
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/* update the cached value and notification flag if needed */
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static void jack_detect_update(struct hda_codec *codec,
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struct hda_jack_tbl *jack)
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{
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if (!jack->jack_dirty)
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return;
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if (jack->phantom_jack)
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jack->pin_sense = AC_PINSENSE_PRESENCE;
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else
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jack->pin_sense = read_pin_sense(codec, jack->nid,
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jack->dev_id);
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/* A gating jack indicates the jack is invalid if gating is unplugged */
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if (jack->gating_jack &&
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!snd_hda_jack_detect_mst(codec, jack->gating_jack, jack->dev_id))
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jack->pin_sense &= ~AC_PINSENSE_PRESENCE;
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jack->jack_dirty = 0;
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/* If a jack is gated by this one update it. */
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if (jack->gated_jack) {
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struct hda_jack_tbl *gated =
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snd_hda_jack_tbl_get_mst(codec, jack->gated_jack,
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jack->dev_id);
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if (gated) {
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gated->jack_dirty = 1;
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jack_detect_update(codec, gated);
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}
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}
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}
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/**
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* snd_hda_jack_set_dirty_all - Mark all the cached as dirty
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* @codec: the HDA codec
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*
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* This function sets the dirty flag to all entries of jack table.
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* It's called from the resume path in hda_codec.c.
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*/
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void snd_hda_jack_set_dirty_all(struct hda_codec *codec)
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{
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struct hda_jack_tbl *jack = codec->jacktbl.list;
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int i;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->nid)
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jack->jack_dirty = 1;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_set_dirty_all);
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/**
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* snd_hda_jack_pin_sense - execute pin sense measurement
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* @codec: the CODEC to sense
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* @nid: the pin NID to sense
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* @dev_id: pin device entry id
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*
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* Execute necessary pin sense measurement and return its Presence Detect,
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* Impedance, ELD Valid etc. status bits.
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*/
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u32 snd_hda_jack_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id)
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{
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struct hda_jack_tbl *jack =
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snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
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if (jack) {
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jack_detect_update(codec, jack);
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return jack->pin_sense;
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}
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return read_pin_sense(codec, nid, dev_id);
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_pin_sense);
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/**
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* snd_hda_jack_detect_state_mst - query pin Presence Detect status
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* @codec: the CODEC to sense
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* @nid: the pin NID to sense
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* @dev_id: pin device entry id
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*
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* Query and return the pin's Presence Detect status, as either
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* HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT or HDA_JACK_PHANTOM.
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*/
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int snd_hda_jack_detect_state_mst(struct hda_codec *codec,
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hda_nid_t nid, int dev_id)
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{
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struct hda_jack_tbl *jack =
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snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
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if (jack && jack->phantom_jack)
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return HDA_JACK_PHANTOM;
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else if (snd_hda_jack_pin_sense(codec, nid, dev_id) &
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AC_PINSENSE_PRESENCE)
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return HDA_JACK_PRESENT;
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else
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return HDA_JACK_NOT_PRESENT;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_detect_state_mst);
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static struct hda_jack_callback *
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find_callback_from_list(struct hda_jack_tbl *jack,
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hda_jack_callback_fn func)
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{
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struct hda_jack_callback *cb;
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if (!func)
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return NULL;
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for (cb = jack->callback; cb; cb = cb->next) {
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if (cb->func == func)
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return cb;
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}
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return NULL;
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}
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/**
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* snd_hda_jack_detect_enable_callback_mst - enable the jack-detection
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* @codec: the HDA codec
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* @nid: pin NID to enable
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* @func: callback function to register
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* @dev_id: pin device entry id
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*
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* In the case of error, the return value will be a pointer embedded with
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* errno. Check and handle the return value appropriately with standard
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* macros such as @IS_ERR() and @PTR_ERR().
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*/
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struct hda_jack_callback *
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snd_hda_jack_detect_enable_callback_mst(struct hda_codec *codec, hda_nid_t nid,
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int dev_id, hda_jack_callback_fn func)
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{
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struct hda_jack_tbl *jack;
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struct hda_jack_callback *callback = NULL;
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int err;
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jack = snd_hda_jack_tbl_new(codec, nid, dev_id);
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if (!jack)
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return ERR_PTR(-ENOMEM);
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callback = find_callback_from_list(jack, func);
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if (func && !callback) {
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callback = kzalloc(sizeof(*callback), GFP_KERNEL);
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if (!callback)
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return ERR_PTR(-ENOMEM);
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callback->func = func;
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callback->nid = jack->nid;
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callback->dev_id = jack->dev_id;
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callback->next = jack->callback;
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jack->callback = callback;
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}
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if (jack->jack_detect)
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return callback; /* already registered */
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jack->jack_detect = 1;
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if (codec->jackpoll_interval > 0)
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return callback; /* No unsol if we're polling instead */
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err = snd_hda_codec_write_cache(codec, nid, 0,
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AC_VERB_SET_UNSOLICITED_ENABLE,
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AC_USRSP_EN | jack->tag);
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if (err < 0)
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return ERR_PTR(err);
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return callback;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_detect_enable_callback_mst);
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/**
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* snd_hda_jack_detect_enable - Enable the jack detection on the given pin
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* @codec: the HDA codec
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* @nid: pin NID to enable jack detection
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* @dev_id: pin device entry id
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*
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* Enable the jack detection with the default callback. Returns zero if
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* successful or a negative error code.
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*/
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int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
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int dev_id)
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{
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return PTR_ERR_OR_ZERO(snd_hda_jack_detect_enable_callback_mst(codec,
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nid,
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dev_id,
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NULL));
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_detect_enable);
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/**
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* snd_hda_jack_set_gating_jack - Set gating jack.
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* @codec: the HDA codec
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* @gated_nid: gated pin NID
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* @gating_nid: gating pin NID
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*
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* Indicates the gated jack is only valid when the gating jack is plugged.
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*/
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int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
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hda_nid_t gating_nid)
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{
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struct hda_jack_tbl *gated = snd_hda_jack_tbl_new(codec, gated_nid, 0);
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struct hda_jack_tbl *gating =
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snd_hda_jack_tbl_new(codec, gating_nid, 0);
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WARN_ON(codec->dp_mst);
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if (!gated || !gating)
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return -EINVAL;
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gated->gating_jack = gating_nid;
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gating->gated_jack = gated_nid;
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_set_gating_jack);
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/**
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* snd_hda_jack_bind_keymap - bind keys generated from one NID to another jack.
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* @codec: the HDA codec
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* @key_nid: key event is generated by this pin NID
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* @keymap: map of key type and key code
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* @jack_nid: key reports to the jack of this pin NID
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*
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* This function is used in the case of key is generated from one NID while is
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* reported to the jack of another NID.
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*/
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int snd_hda_jack_bind_keymap(struct hda_codec *codec, hda_nid_t key_nid,
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const struct hda_jack_keymap *keymap,
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hda_nid_t jack_nid)
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{
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const struct hda_jack_keymap *map;
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struct hda_jack_tbl *key_gen = snd_hda_jack_tbl_get(codec, key_nid);
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struct hda_jack_tbl *report_to = snd_hda_jack_tbl_get(codec, jack_nid);
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WARN_ON(codec->dp_mst);
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if (!key_gen || !report_to || !report_to->jack)
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return -EINVAL;
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key_gen->key_report_jack = jack_nid;
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if (keymap)
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for (map = keymap; map->type; map++)
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snd_jack_set_key(report_to->jack, map->type, map->key);
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return 0;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_bind_keymap);
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/**
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* snd_hda_jack_set_button_state - report button event to the hda_jack_tbl button_state.
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* @codec: the HDA codec
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* @jack_nid: the button event reports to the jack_tbl of this NID
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* @button_state: the button event captured by codec
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*
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* Codec driver calls this function to report the button event.
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*/
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void snd_hda_jack_set_button_state(struct hda_codec *codec, hda_nid_t jack_nid,
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int button_state)
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{
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struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, jack_nid);
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if (!jack)
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return;
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if (jack->key_report_jack) {
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struct hda_jack_tbl *report_to =
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snd_hda_jack_tbl_get(codec, jack->key_report_jack);
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if (report_to) {
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report_to->button_state = button_state;
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return;
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}
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}
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jack->button_state = button_state;
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}
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EXPORT_SYMBOL_GPL(snd_hda_jack_set_button_state);
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/**
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* snd_hda_jack_report_sync - sync the states of all jacks and report if changed
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* @codec: the HDA codec
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*/
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void snd_hda_jack_report_sync(struct hda_codec *codec)
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{
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struct hda_jack_tbl *jack;
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int i, state;
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/* update all jacks at first */
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jack = codec->jacktbl.list;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->nid)
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jack_detect_update(codec, jack);
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/* report the updated jacks; it's done after updating all jacks
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* to make sure that all gating jacks properly have been set
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*/
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jack = codec->jacktbl.list;
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for (i = 0; i < codec->jacktbl.used; i++, jack++)
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if (jack->nid) {
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if (!jack->jack || jack->block_report)
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continue;
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|
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)
|
|
strscpy(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;
|
|
|
|
if (event->key_report_jack) {
|
|
struct hda_jack_tbl *report_to =
|
|
snd_hda_jack_tbl_get_mst(codec, event->key_report_jack,
|
|
event->dev_id);
|
|
if (report_to)
|
|
report_to->jack_dirty = 1;
|
|
} else
|
|
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);
|
|
|