summaryrefslogtreecommitdiffstats
path: root/sound/pci/hda/hda_jack.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/pci/hda/hda_jack.c')
-rw-r--r--sound/pci/hda/hda_jack.c359
1 files changed, 359 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
new file mode 100644
index 000000000000..9d819c4b4923
--- /dev/null
+++ b/sound/pci/hda/hda_jack.c
@@ -0,0 +1,359 @@
+/*
+ * Jack-detection handling for HD-audio
+ *
+ * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#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 "hda_codec.h"
+#include "hda_local.h"
+#include "hda_jack.h"
+
+/* execute pin sense measurement */
+static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid)
+{
+ u32 pincap;
+
+ 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);
+ }
+ return snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_PIN_SENSE, 0);
+}
+
+/**
+ * snd_hda_jack_tbl_get - query the jack-table entry for the given NID
+ */
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get(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;
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get);
+
+/**
+ * snd_hda_jack_tbl_get_from_tag - query the jack-table entry for the given tag
+ */
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag)
+{
+ 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)
+ return jack;
+ return NULL;
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get_from_tag);
+
+/**
+ * snd_hda_jack_tbl_new - create a jack-table entry for the given NID
+ */
+struct hda_jack_tbl *
+snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid)
+{
+ struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
+ if (jack)
+ return jack;
+ snd_array_init(&codec->jacktbl, sizeof(*jack), 16);
+ jack = snd_array_new(&codec->jacktbl);
+ if (!jack)
+ return NULL;
+ jack->nid = nid;
+ jack->jack_dirty = 1;
+ jack->tag = codec->jacktbl.used;
+ return jack;
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_new);
+
+void snd_hda_jack_tbl_clear(struct hda_codec *codec)
+{
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+ /* free jack instances manually when clearing/reconfiguring */
+ if (!codec->bus->shutdown && codec->jacktbl.list) {
+ struct hda_jack_tbl *jack = codec->jacktbl.list;
+ int i;
+ for (i = 0; i < codec->jacktbl.used; i++, jack++) {
+ if (jack->jack)
+ snd_device_free(codec->bus->card, jack->jack);
+ }
+ }
+#endif
+ snd_array_free(&codec->jacktbl);
+}
+
+/* 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 || !jack->jack_detect) {
+ jack->pin_sense = read_pin_sense(codec, jack->nid);
+ jack->jack_dirty = 0;
+ }
+}
+
+/**
+ * snd_hda_set_dirty_all - Mark all the cached as dirty
+ *
+ * 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_HDA(snd_hda_jack_set_dirty_all);
+
+/**
+ * snd_hda_pin_sense - execute pin sense measurement
+ * @codec: the CODEC to sense
+ * @nid: the pin NID to sense
+ *
+ * Execute necessary pin sense measurement and return its Presence Detect,
+ * Impedance, ELD Valid etc. status bits.
+ */
+u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
+{
+ struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
+ if (jack) {
+ jack_detect_update(codec, jack);
+ return jack->pin_sense;
+ }
+ return read_pin_sense(codec, nid);
+}
+EXPORT_SYMBOL_HDA(snd_hda_pin_sense);
+
+#define get_jack_plug_state(sense) !!(sense & AC_PINSENSE_PRESENCE)
+
+/**
+ * snd_hda_jack_detect - query pin Presence Detect status
+ * @codec: the CODEC to sense
+ * @nid: the pin NID to sense
+ *
+ * Query and return the pin's Presence Detect status.
+ */
+int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
+{
+ u32 sense = snd_hda_pin_sense(codec, nid);
+ return get_jack_plug_state(sense);
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_detect);
+
+/**
+ * snd_hda_jack_detect_enable - enable the jack-detection
+ */
+int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char action)
+{
+ struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid);
+ if (!jack)
+ return -ENOMEM;
+ if (jack->jack_detect)
+ return 0; /* already registered */
+ jack->jack_detect = 1;
+ if (action)
+ jack->action = action;
+ return snd_hda_codec_write_cache(codec, nid, 0,
+ AC_VERB_SET_UNSOLICITED_ENABLE,
+ AC_USRSP_EN | jack->tag);
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_detect_enable);
+
+/**
+ * snd_hda_jack_report_sync - sync the states of all jacks and report if changed
+ */
+void snd_hda_jack_report_sync(struct hda_codec *codec)
+{
+ struct hda_jack_tbl *jack = codec->jacktbl.list;
+ int i, state;
+
+ for (i = 0; i < codec->jacktbl.used; i++, jack++)
+ if (jack->nid) {
+ jack_detect_update(codec, jack);
+ if (!jack->kctl)
+ continue;
+ state = get_jack_plug_state(jack->pin_sense);
+ snd_kctl_jack_report(codec->bus->card, jack->kctl, state);
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+ if (jack->jack)
+ snd_jack_report(jack->jack,
+ state ? jack->type : 0);
+#endif
+ }
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_report_sync);
+
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+/* 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;
+}
+#endif
+
+/**
+ * snd_hda_jack_add_kctl - Add a kctl for the given pin
+ *
+ * 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(struct hda_codec *codec, hda_nid_t nid,
+ const char *name, int idx)
+{
+ struct hda_jack_tbl *jack;
+ struct snd_kcontrol *kctl;
+ int err, state;
+
+ jack = snd_hda_jack_tbl_new(codec, nid);
+ if (!jack)
+ return 0;
+ if (jack->kctl)
+ return 0; /* already created */
+ kctl = snd_kctl_jack_new(name, idx, codec);
+ if (!kctl)
+ return -ENOMEM;
+ err = snd_hda_ctl_add(codec, nid, kctl);
+ if (err < 0)
+ return err;
+ jack->kctl = kctl;
+ state = snd_hda_jack_detect(codec, nid);
+ snd_kctl_jack_report(codec->bus->card, kctl, state);
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+ jack->type = get_input_jack_type(codec, nid);
+ err = snd_jack_new(codec->bus->card, name, jack->type, &jack->jack);
+ if (err < 0)
+ return err;
+ jack->jack->private_data = jack;
+ jack->jack->private_free = hda_free_jack_priv;
+ snd_jack_report(jack->jack, state ? jack->type : 0);
+#endif
+ return 0;
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctl);
+
+static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
+ const struct auto_pin_cfg *cfg,
+ char *lastname, int *lastidx)
+{
+ unsigned int def_conf, conn;
+ char name[44];
+ int idx, err;
+
+ if (!nid)
+ return 0;
+ if (!is_jack_detectable(codec, nid))
+ return 0;
+ def_conf = snd_hda_codec_get_pincfg(codec, nid);
+ conn = get_defcfg_connect(def_conf);
+ if (conn != AC_JACK_PORT_COMPLEX)
+ return 0;
+
+ snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx);
+ if (!strcmp(name, lastname) && idx == *lastidx)
+ idx++;
+ strncpy(lastname, name, 44);
+ *lastidx = idx;
+ err = snd_hda_jack_add_kctl(codec, nid, name, idx);
+ if (err < 0)
+ return err;
+ return snd_hda_jack_detect_enable(codec, nid, 0);
+}
+
+/**
+ * snd_hda_jack_add_kctls - Add kctls for all pins included in the given pincfg
+ */
+int snd_hda_jack_add_kctls(struct hda_codec *codec,
+ const struct auto_pin_cfg *cfg)
+{
+ const hda_nid_t *p;
+ int i, err, lastidx = 0;
+ char lastname[44] = "";
+
+ for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) {
+ err = add_jack_kctl(codec, *p, cfg, lastname, &lastidx);
+ 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, lastname, &lastidx);
+ 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, lastname, &lastidx);
+ if (err < 0)
+ return err;
+ }
+ for (i = 0; i < cfg->num_inputs; i++) {
+ err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg, lastname, &lastidx);
+ 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, lastname, &lastidx);
+ if (err < 0)
+ return err;
+ }
+ err = add_jack_kctl(codec, cfg->dig_in_pin, cfg, lastname, &lastidx);
+ if (err < 0)
+ return err;
+ err = add_jack_kctl(codec, cfg->mono_out_pin, cfg, lastname, &lastidx);
+ if (err < 0)
+ return err;
+ return 0;
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctls);