2 * Jack-detection handling for HD-audio
4 * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
6 * This driver is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/init.h>
13 #include <linux/slab.h>
14 #include <linux/export.h>
15 #include <sound/core.h>
16 #include <sound/control.h>
17 #include <sound/jack.h>
18 #include "hda_codec.h"
19 #include "hda_local.h"
22 /* execute pin sense measurement */
23 static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid)
27 if (!codec->no_trigger_sense) {
28 pincap = snd_hda_query_pin_caps(codec, nid);
29 if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
30 snd_hda_codec_read(codec, nid, 0,
31 AC_VERB_SET_PIN_SENSE, 0);
33 return snd_hda_codec_read(codec, nid, 0,
34 AC_VERB_GET_PIN_SENSE, 0);
38 * snd_hda_jack_tbl_get - query the jack-table entry for the given NID
41 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid)
43 struct hda_jack_tbl *jack = codec->jacktbl.list;
48 for (i = 0; i < codec->jacktbl.used; i++, jack++)
53 EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get);
56 * snd_hda_jack_tbl_get_from_tag - query the jack-table entry for the given tag
59 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag)
61 struct hda_jack_tbl *jack = codec->jacktbl.list;
66 for (i = 0; i < codec->jacktbl.used; i++, jack++)
71 EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get_from_tag);
74 * snd_hda_jack_tbl_new - create a jack-table entry for the given NID
77 snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid)
79 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
82 snd_array_init(&codec->jacktbl, sizeof(*jack), 16);
83 jack = snd_array_new(&codec->jacktbl);
88 jack->tag = codec->jacktbl.used;
91 EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_new);
93 #ifdef CONFIG_SND_HDA_INPUT_JACK
94 static void snd_hda_input_jack_free(struct hda_codec *codec);
96 #define snd_hda_input_jack_free(codec)
99 void snd_hda_jack_tbl_clear(struct hda_codec *codec)
101 snd_hda_input_jack_free(codec);
102 snd_array_free(&codec->jacktbl);
105 /* update the cached value and notification flag if needed */
106 static void jack_detect_update(struct hda_codec *codec,
107 struct hda_jack_tbl *jack)
109 if (jack->jack_dirty || !jack->jack_detect) {
110 jack->pin_sense = read_pin_sense(codec, jack->nid);
111 jack->jack_dirty = 0;
116 * snd_hda_set_dirty_all - Mark all the cached as dirty
118 * This function sets the dirty flag to all entries of jack table.
119 * It's called from the resume path in hda_codec.c.
121 void snd_hda_jack_set_dirty_all(struct hda_codec *codec)
123 struct hda_jack_tbl *jack = codec->jacktbl.list;
126 for (i = 0; i < codec->jacktbl.used; i++, jack++)
128 jack->jack_dirty = 1;
130 EXPORT_SYMBOL_HDA(snd_hda_jack_set_dirty_all);
133 * snd_hda_pin_sense - execute pin sense measurement
134 * @codec: the CODEC to sense
135 * @nid: the pin NID to sense
137 * Execute necessary pin sense measurement and return its Presence Detect,
138 * Impedance, ELD Valid etc. status bits.
140 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
142 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
144 jack_detect_update(codec, jack);
145 return jack->pin_sense;
147 return read_pin_sense(codec, nid);
149 EXPORT_SYMBOL_HDA(snd_hda_pin_sense);
151 #define get_jack_plug_state(sense) !!(sense & AC_PINSENSE_PRESENCE)
154 * snd_hda_jack_detect - query pin Presence Detect status
155 * @codec: the CODEC to sense
156 * @nid: the pin NID to sense
158 * Query and return the pin's Presence Detect status.
160 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
162 u32 sense = snd_hda_pin_sense(codec, nid);
163 return get_jack_plug_state(sense);
165 EXPORT_SYMBOL_HDA(snd_hda_jack_detect);
168 * snd_hda_jack_detect_enable - enable the jack-detection
170 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
171 unsigned char action)
173 struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid);
176 if (jack->jack_detect)
177 return 0; /* already registered */
178 jack->jack_detect = 1;
180 jack->action = action;
181 return snd_hda_codec_write_cache(codec, nid, 0,
182 AC_VERB_SET_UNSOLICITED_ENABLE,
183 AC_USRSP_EN | jack->tag);
185 EXPORT_SYMBOL_HDA(snd_hda_jack_detect_enable);
188 * snd_hda_jack_report_sync - sync the states of all jacks and report if changed
190 void snd_hda_jack_report_sync(struct hda_codec *codec)
192 struct hda_jack_tbl *jack = codec->jacktbl.list;
195 for (i = 0; i < codec->jacktbl.used; i++, jack++)
197 jack_detect_update(codec, jack);
200 state = get_jack_plug_state(jack->pin_sense);
201 snd_kctl_jack_report(codec->bus->card, jack->kctl, state);
204 EXPORT_SYMBOL_HDA(snd_hda_jack_report_sync);
207 * snd_hda_jack_add_kctl - Add a kctl for the given pin
209 * This assigns a jack-detection kctl to the given pin. The kcontrol
210 * will have the given name and index.
212 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
213 const char *name, int idx)
215 struct hda_jack_tbl *jack;
216 struct snd_kcontrol *kctl;
218 jack = snd_hda_jack_tbl_new(codec, nid);
222 return 0; /* already created */
223 kctl = snd_kctl_jack_new(name, idx, codec);
226 if (snd_hda_ctl_add(codec, nid, kctl) < 0)
229 snd_kctl_jack_report(codec->bus->card, kctl,
230 snd_hda_jack_detect(codec, nid));
233 EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctl);
235 static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid,
236 const struct auto_pin_cfg *cfg)
238 unsigned int def_conf, conn;
244 if (!is_jack_detectable(codec, nid))
246 def_conf = snd_hda_codec_get_pincfg(codec, nid);
247 conn = get_defcfg_connect(def_conf);
248 if (conn != AC_JACK_PORT_COMPLEX)
251 snd_hda_get_pin_label(codec, nid, cfg, name, sizeof(name), &idx);
252 err = snd_hda_jack_add_kctl(codec, nid, name, idx);
255 return snd_hda_jack_detect_enable(codec, nid, 0);
259 * snd_hda_jack_add_kctls - Add kctls for all pins included in the given pincfg
261 int snd_hda_jack_add_kctls(struct hda_codec *codec,
262 const struct auto_pin_cfg *cfg)
267 for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) {
268 err = add_jack_kctl(codec, *p, cfg);
272 for (i = 0, p = cfg->hp_pins; i < cfg->hp_outs; i++, p++) {
273 if (*p == *cfg->line_out_pins) /* might be duplicated */
275 err = add_jack_kctl(codec, *p, cfg);
279 for (i = 0, p = cfg->speaker_pins; i < cfg->speaker_outs; i++, p++) {
280 if (*p == *cfg->line_out_pins) /* might be duplicated */
282 err = add_jack_kctl(codec, *p, cfg);
286 for (i = 0; i < cfg->num_inputs; i++) {
287 err = add_jack_kctl(codec, cfg->inputs[i].pin, cfg);
291 for (i = 0, p = cfg->dig_out_pins; i < cfg->dig_outs; i++, p++) {
292 err = add_jack_kctl(codec, *p, cfg);
296 err = add_jack_kctl(codec, cfg->dig_in_pin, cfg);
299 err = add_jack_kctl(codec, cfg->mono_out_pin, cfg);
304 EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctls);
306 #ifdef CONFIG_SND_HDA_INPUT_JACK
308 * Input-jack notification support
310 static const char *get_jack_default_name(struct hda_codec *codec, hda_nid_t nid,
314 case SND_JACK_HEADPHONE:
316 case SND_JACK_MICROPHONE:
318 case SND_JACK_LINEOUT:
320 case SND_JACK_LINEIN:
322 case SND_JACK_HEADSET:
324 case SND_JACK_VIDEOOUT:
331 static void hda_free_jack_priv(struct snd_jack *jack)
333 struct hda_jack_tbl *jacks = jack->private_data;
338 int snd_hda_input_jack_add(struct hda_codec *codec, hda_nid_t nid, int type,
341 struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid);
347 name = get_jack_default_name(codec, nid, type);
348 err = snd_jack_new(codec->bus->card, name, type, &jack->jack);
352 jack->jack->private_data = jack;
353 jack->jack->private_free = hda_free_jack_priv;
356 EXPORT_SYMBOL_HDA(snd_hda_input_jack_add);
358 void snd_hda_input_jack_report(struct hda_codec *codec, hda_nid_t nid)
360 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
361 unsigned int pin_ctl;
362 unsigned int present;
365 if (!jack || !jack->jack)
368 present = snd_hda_jack_detect(codec, nid);
370 if (type == (SND_JACK_HEADPHONE | SND_JACK_LINEOUT)) {
371 pin_ctl = snd_hda_codec_read(codec, nid, 0,
372 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
373 type = (pin_ctl & AC_PINCTL_HP_EN) ?
374 SND_JACK_HEADPHONE : SND_JACK_LINEOUT;
376 snd_jack_report(jack->jack, present ? type : 0);
378 EXPORT_SYMBOL_HDA(snd_hda_input_jack_report);
380 /* free jack instances manually when clearing/reconfiguring */
381 static void snd_hda_input_jack_free(struct hda_codec *codec)
383 if (!codec->bus->shutdown && codec->jacktbl.list) {
384 struct hda_jack_tbl *jack = codec->jacktbl.list;
386 for (i = 0; i < codec->jacktbl.used; i++, jack++) {
388 snd_device_free(codec->bus->card, jack->jack);
392 #endif /* CONFIG_SND_HDA_INPUT_JACK */