Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Jack-detection handling for HD-audio |
| 3 | * |
| 4 | * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 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. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/slab.h> |
| 14 | #include <sound/core.h> |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 15 | #include <sound/control.h> |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 16 | #include "hda_codec.h" |
| 17 | #include "hda_local.h" |
| 18 | #include "hda_jack.h" |
| 19 | |
| 20 | /* execute pin sense measurement */ |
| 21 | static u32 read_pin_sense(struct hda_codec *codec, hda_nid_t nid) |
| 22 | { |
| 23 | u32 pincap; |
| 24 | |
| 25 | if (!codec->no_trigger_sense) { |
| 26 | pincap = snd_hda_query_pin_caps(codec, nid); |
| 27 | if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */ |
| 28 | snd_hda_codec_read(codec, nid, 0, |
| 29 | AC_VERB_SET_PIN_SENSE, 0); |
| 30 | } |
| 31 | return snd_hda_codec_read(codec, nid, 0, |
| 32 | AC_VERB_GET_PIN_SENSE, 0); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * snd_hda_jack_tbl_get - query the jack-table entry for the given NID |
| 37 | */ |
| 38 | struct hda_jack_tbl * |
| 39 | snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid) |
| 40 | { |
| 41 | struct hda_jack_tbl *jack = codec->jacktbl.list; |
| 42 | int i; |
| 43 | |
| 44 | if (!nid || !jack) |
| 45 | return NULL; |
| 46 | for (i = 0; i < codec->jacktbl.used; i++, jack++) |
| 47 | if (jack->nid == nid) |
| 48 | return jack; |
| 49 | return NULL; |
| 50 | } |
| 51 | EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get); |
| 52 | |
| 53 | /** |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 54 | * snd_hda_jack_tbl_get_from_tag - query the jack-table entry for the given tag |
| 55 | */ |
| 56 | struct hda_jack_tbl * |
| 57 | snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag) |
| 58 | { |
| 59 | struct hda_jack_tbl *jack = codec->jacktbl.list; |
| 60 | int i; |
| 61 | |
| 62 | if (!tag || !jack) |
| 63 | return NULL; |
| 64 | for (i = 0; i < codec->jacktbl.used; i++, jack++) |
| 65 | if (jack->tag == tag) |
| 66 | return jack; |
| 67 | return NULL; |
| 68 | } |
| 69 | EXPORT_SYMBOL_HDA(snd_hda_jack_tbl_get_from_tag); |
| 70 | |
| 71 | /** |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 72 | * snd_hda_jack_tbl_new - create a jack-table entry for the given NID |
| 73 | */ |
| 74 | struct hda_jack_tbl * |
| 75 | snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid) |
| 76 | { |
| 77 | struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid); |
| 78 | if (jack) |
| 79 | return jack; |
| 80 | snd_array_init(&codec->jacktbl, sizeof(*jack), 16); |
| 81 | jack = snd_array_new(&codec->jacktbl); |
| 82 | if (!jack) |
| 83 | return NULL; |
| 84 | jack->nid = nid; |
| 85 | jack->jack_dirty = 1; |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 86 | jack->tag = codec->jacktbl.used; |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 87 | return jack; |
| 88 | } |
| 89 | |
| 90 | void snd_hda_jack_tbl_clear(struct hda_codec *codec) |
| 91 | { |
| 92 | snd_array_free(&codec->jacktbl); |
| 93 | } |
| 94 | |
| 95 | /* update the cached value and notification flag if needed */ |
| 96 | static void jack_detect_update(struct hda_codec *codec, |
| 97 | struct hda_jack_tbl *jack) |
| 98 | { |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 99 | if (jack->jack_dirty || !jack->jack_detect) { |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 100 | unsigned int val = read_pin_sense(codec, jack->nid); |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 101 | jack->jack_dirty = 0; |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 102 | if (val != jack->pin_sense) { |
| 103 | jack->need_notify = 1; |
| 104 | jack->pin_sense = val; |
| 105 | } |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 106 | } |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * snd_hda_set_dirty_all - Mark all the cached as dirty |
| 111 | * |
| 112 | * This function sets the dirty flag to all entries of jack table. |
| 113 | * It's called from the resume path in hda_codec.c. |
| 114 | */ |
| 115 | void snd_hda_jack_set_dirty_all(struct hda_codec *codec) |
| 116 | { |
| 117 | struct hda_jack_tbl *jack = codec->jacktbl.list; |
| 118 | int i; |
| 119 | |
| 120 | for (i = 0; i < codec->jacktbl.used; i++, jack++) |
| 121 | if (jack->nid) |
| 122 | jack->jack_dirty = 1; |
| 123 | } |
| 124 | EXPORT_SYMBOL_HDA(snd_hda_jack_set_dirty_all); |
| 125 | |
| 126 | /** |
| 127 | * snd_hda_pin_sense - execute pin sense measurement |
| 128 | * @codec: the CODEC to sense |
| 129 | * @nid: the pin NID to sense |
| 130 | * |
| 131 | * Execute necessary pin sense measurement and return its Presence Detect, |
| 132 | * Impedance, ELD Valid etc. status bits. |
| 133 | */ |
| 134 | u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid) |
| 135 | { |
| 136 | struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid); |
| 137 | if (jack) { |
| 138 | jack_detect_update(codec, jack); |
| 139 | return jack->pin_sense; |
| 140 | } |
| 141 | return read_pin_sense(codec, nid); |
| 142 | } |
| 143 | EXPORT_SYMBOL_HDA(snd_hda_pin_sense); |
| 144 | |
| 145 | /** |
| 146 | * snd_hda_jack_detect - query pin Presence Detect status |
| 147 | * @codec: the CODEC to sense |
| 148 | * @nid: the pin NID to sense |
| 149 | * |
| 150 | * Query and return the pin's Presence Detect status. |
| 151 | */ |
| 152 | int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid) |
| 153 | { |
| 154 | u32 sense = snd_hda_pin_sense(codec, nid); |
| 155 | return !!(sense & AC_PINSENSE_PRESENCE); |
| 156 | } |
| 157 | EXPORT_SYMBOL_HDA(snd_hda_jack_detect); |
| 158 | |
| 159 | /** |
| 160 | * snd_hda_jack_detect_enable - enable the jack-detection |
| 161 | */ |
| 162 | int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid, |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 163 | unsigned char action) |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 164 | { |
| 165 | struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid); |
| 166 | if (!jack) |
| 167 | return -ENOMEM; |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 168 | if (jack->jack_detect) |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 169 | return 0; /* already registered */ |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 170 | jack->jack_detect = 1; |
| 171 | if (action) |
| 172 | jack->action = action; |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 173 | return snd_hda_codec_write_cache(codec, nid, 0, |
| 174 | AC_VERB_SET_UNSOLICITED_ENABLE, |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 175 | AC_USRSP_EN | jack->tag); |
Takashi Iwai | 1835a0f | 2011-10-27 22:12:46 +0200 | [diff] [blame] | 176 | } |
| 177 | EXPORT_SYMBOL_HDA(snd_hda_jack_detect_enable); |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 178 | |
| 179 | /* queue the notification when needed */ |
| 180 | static void jack_detect_report(struct hda_codec *codec, |
| 181 | struct hda_jack_tbl *jack) |
| 182 | { |
| 183 | jack_detect_update(codec, jack); |
| 184 | if (jack->need_notify) { |
| 185 | snd_ctl_notify(codec->bus->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 186 | &jack->kctl->id); |
| 187 | jack->need_notify = 0; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | /** |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 192 | * snd_hda_jack_report_sync - sync the states of all jacks and report if changed |
| 193 | */ |
| 194 | void snd_hda_jack_report_sync(struct hda_codec *codec) |
| 195 | { |
| 196 | struct hda_jack_tbl *jack = codec->jacktbl.list; |
| 197 | int i; |
| 198 | |
| 199 | for (i = 0; i < codec->jacktbl.used; i++, jack++) |
| 200 | if (jack->nid) { |
| 201 | jack_detect_update(codec, jack); |
| 202 | jack_detect_report(codec, jack); |
| 203 | } |
| 204 | } |
| 205 | EXPORT_SYMBOL_HDA(snd_hda_jack_report_sync); |
| 206 | |
| 207 | /* |
| 208 | * jack-detection kcontrols |
| 209 | */ |
| 210 | |
| 211 | #define jack_detect_kctl_info snd_ctl_boolean_mono_info |
| 212 | |
| 213 | static int jack_detect_kctl_get(struct snd_kcontrol *kcontrol, |
| 214 | struct snd_ctl_elem_value *ucontrol) |
| 215 | { |
| 216 | struct hda_codec *codec = snd_kcontrol_chip(kcontrol); |
| 217 | hda_nid_t nid = kcontrol->private_value; |
| 218 | |
| 219 | ucontrol->value.integer.value[0] = snd_hda_jack_detect(codec, nid); |
| 220 | return 0; |
| 221 | } |
| 222 | |
| 223 | static struct snd_kcontrol_new jack_detect_kctl = { |
| 224 | /* name is filled later */ |
| 225 | .iface = SNDRV_CTL_ELEM_IFACE_CARD, |
| 226 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| 227 | .info = jack_detect_kctl_info, |
| 228 | .get = jack_detect_kctl_get, |
| 229 | }; |
| 230 | |
| 231 | /** |
| 232 | * snd_hda_jack_add_kctl - Add a kctl for the given pin |
| 233 | * |
| 234 | * This assigns a jack-detection kctl to the given pin. The kcontrol |
| 235 | * will have the given name and index. |
| 236 | */ |
| 237 | int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, |
| 238 | const char *name, int idx) |
| 239 | { |
| 240 | struct hda_jack_tbl *jack; |
| 241 | struct snd_kcontrol *kctl; |
| 242 | |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 243 | jack = snd_hda_jack_tbl_new(codec, nid); |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 244 | if (!jack) |
| 245 | return 0; |
| 246 | if (jack->kctl) |
| 247 | return 0; /* already created */ |
| 248 | kctl = snd_ctl_new1(&jack_detect_kctl, codec); |
| 249 | if (!kctl) |
| 250 | return -ENOMEM; |
| 251 | snprintf(kctl->id.name, sizeof(kctl->id.name), "%s Jack", name); |
| 252 | kctl->id.index = idx; |
| 253 | kctl->private_value = nid; |
| 254 | if (snd_hda_ctl_add(codec, nid, kctl) < 0) |
| 255 | return -ENOMEM; |
| 256 | jack->kctl = kctl; |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static int add_jack_kctl(struct hda_codec *codec, hda_nid_t nid, int idx, |
| 261 | const struct auto_pin_cfg *cfg) |
| 262 | { |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 263 | unsigned int def_conf, conn; |
| 264 | int err; |
| 265 | |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 266 | if (!nid) |
| 267 | return 0; |
| 268 | if (!is_jack_detectable(codec, nid)) |
| 269 | return 0; |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 270 | def_conf = snd_hda_codec_get_pincfg(codec, nid); |
| 271 | conn = get_defcfg_connect(def_conf); |
| 272 | if (conn != AC_JACK_PORT_COMPLEX) |
| 273 | return 0; |
| 274 | |
| 275 | err = snd_hda_jack_add_kctl(codec, nid, |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 276 | snd_hda_get_pin_label(codec, nid, cfg), |
| 277 | idx); |
Takashi Iwai | 3a93897 | 2011-10-28 01:16:55 +0200 | [diff] [blame^] | 278 | if (err < 0) |
| 279 | return err; |
| 280 | return snd_hda_jack_detect_enable(codec, nid, 0); |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | /** |
| 284 | * snd_hda_jack_add_kctls - Add kctls for all pins included in the given pincfg |
Takashi Iwai | 01a61e1 | 2011-10-28 00:03:22 +0200 | [diff] [blame] | 285 | */ |
| 286 | int snd_hda_jack_add_kctls(struct hda_codec *codec, |
| 287 | const struct auto_pin_cfg *cfg) |
| 288 | { |
| 289 | const hda_nid_t *p; |
| 290 | int i, err; |
| 291 | |
| 292 | for (i = 0, p = cfg->line_out_pins; i < cfg->line_outs; i++, p++) { |
| 293 | err = add_jack_kctl(codec, *p, i, cfg); |
| 294 | if (err < 0) |
| 295 | return err; |
| 296 | } |
| 297 | for (i = 0, p = cfg->hp_pins; i < cfg->hp_outs; i++, p++) { |
| 298 | if (*p == *cfg->line_out_pins) /* might be duplicated */ |
| 299 | break; |
| 300 | err = add_jack_kctl(codec, *p, i, cfg); |
| 301 | if (err < 0) |
| 302 | return err; |
| 303 | } |
| 304 | for (i = 0, p = cfg->speaker_pins; i < cfg->speaker_outs; i++, p++) { |
| 305 | if (*p == *cfg->line_out_pins) /* might be duplicated */ |
| 306 | break; |
| 307 | err = add_jack_kctl(codec, *p, i, cfg); |
| 308 | if (err < 0) |
| 309 | return err; |
| 310 | } |
| 311 | for (i = 0; i < cfg->num_inputs; i++) { |
| 312 | err = add_jack_kctl(codec, cfg->inputs[i].pin, 0, cfg); |
| 313 | if (err < 0) |
| 314 | return err; |
| 315 | } |
| 316 | for (i = 0, p = cfg->dig_out_pins; i < cfg->dig_outs; i++, p++) { |
| 317 | err = add_jack_kctl(codec, *p, i, cfg); |
| 318 | if (err < 0) |
| 319 | return err; |
| 320 | } |
| 321 | err = add_jack_kctl(codec, cfg->dig_in_pin, 0, cfg); |
| 322 | if (err < 0) |
| 323 | return err; |
| 324 | err = add_jack_kctl(codec, cfg->mono_out_pin, 0, cfg); |
| 325 | if (err < 0) |
| 326 | return err; |
| 327 | return 0; |
| 328 | } |
| 329 | EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctls); |