sound/aoa/fabrics/layout.c

   1 /*
   2  * Apple Onboard Audio driver -- layout fabric
   3  *
   4  * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * GPL v2, can be found in COPYING.
   7  *
   8  *
   9  * This fabric module looks for sound codecs
  10  * based on the layout-id property in the device tree.
  11  *
  12  */
  13
  14 #include <asm/prom.h>
  15 #include <linux/list.h>
  16 #include <linux/module.h>
  17 #include "../aoa.h"
  18 #include "../soundbus/soundbus.h"
  19
  20 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
  21 MODULE_LICENSE("GPL");
  22 MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
  23
  24 #define MAX_CODECS_PER_BUS      2
  25
  26 /* These are the connections the layout fabric
  27  * knows about. It doesn't really care about the
  28  * input ones, but I thought I'd separate them
  29  * to give them proper names. The thing is that
  30  * Apple usually will distinguish the active output
  31  * by GPIOs, while the active input is set directly
  32  * on the codec. Hence we here tell the codec what
  33  * we think is connected. This information is hard-
  34  * coded below ... */
  35 #define CC_SPEAKERS     (1<<0)
  36 #define CC_HEADPHONE    (1<<1)
  37 #define CC_LINEOUT      (1<<2)
  38 #define CC_DIGITALOUT   (1<<3)
  39 #define CC_LINEIN       (1<<4)
  40 #define CC_MICROPHONE   (1<<5)
  41 #define CC_DIGITALIN    (1<<6)
  42 /* pretty bogus but users complain...
  43  * This is a flag saying that the LINEOUT
  44  * should be renamed to HEADPHONE.
  45  * be careful with input detection! */
  46 #define CC_LINEOUT_LABELLED_HEADPHONE   (1<<7)
  47
  48 struct codec_connection {
  49         /* CC_ flags from above */
  50         int connected;
  51         /* codec dependent bit to be set in the aoa_codec.connected field.
  52          * This intentionally doesn't have any generic flags because the
  53          * fabric has to know the codec anyway and all codecs might have
  54          * different connectors */
  55         int codec_bit;
  56 };
  57
  58 struct codec_connect_info {
  59         char *name;
  60         struct codec_connection *connections;
  61 };
  62
  63 #define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
  64
  65 struct layout {
  66         unsigned int layout_id;
  67         struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
  68         int flags;
  69
  70         /* if busname is not assigned, we use 'Master' below,
  71          * so that our layout table doesn't need to be filled
  72          * too much.
  73          * We only assign these two if we expect to find more
  74          * than one soundbus, i.e. on those machines with
  75          * multiple layout-ids */
  76         char *busname;
  77         int pcmid;
  78 };
  79
  80 MODULE_ALIAS("sound-layout-36");
  81 MODULE_ALIAS("sound-layout-41");
  82 MODULE_ALIAS("sound-layout-45");
  83 MODULE_ALIAS("sound-layout-47");
  84 MODULE_ALIAS("sound-layout-48");
  85 MODULE_ALIAS("sound-layout-49");
  86 MODULE_ALIAS("sound-layout-50");
  87 MODULE_ALIAS("sound-layout-51");
  88 MODULE_ALIAS("sound-layout-56");
  89 MODULE_ALIAS("sound-layout-57");
  90 MODULE_ALIAS("sound-layout-58");
  91 MODULE_ALIAS("sound-layout-60");
  92 MODULE_ALIAS("sound-layout-61");
  93 MODULE_ALIAS("sound-layout-62");
  94 MODULE_ALIAS("sound-layout-64");
  95 MODULE_ALIAS("sound-layout-65");
  96 MODULE_ALIAS("sound-layout-66");
  97 MODULE_ALIAS("sound-layout-67");
  98 MODULE_ALIAS("sound-layout-68");
  99 MODULE_ALIAS("sound-layout-69");
 100 MODULE_ALIAS("sound-layout-70");
 101 MODULE_ALIAS("sound-layout-72");
 102 MODULE_ALIAS("sound-layout-76");
 103 MODULE_ALIAS("sound-layout-80");
 104 MODULE_ALIAS("sound-layout-82");
 105 MODULE_ALIAS("sound-layout-84");
 106 MODULE_ALIAS("sound-layout-86");
 107 MODULE_ALIAS("sound-layout-90");
 108 MODULE_ALIAS("sound-layout-92");
 109 MODULE_ALIAS("sound-layout-94");
 110 MODULE_ALIAS("sound-layout-96");
 111 MODULE_ALIAS("sound-layout-98");
 112 MODULE_ALIAS("sound-layout-100");
 113
 114 /* onyx with all but microphone connected */
 115 static struct codec_connection onyx_connections_nomic[] = {
 116         {
 117                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 118                 .codec_bit = 0,
 119         },
 120         {
 121                 .connected = CC_DIGITALOUT,
 122                 .codec_bit = 1,
 123         },
 124         {
 125                 .connected = CC_LINEIN,
 126                 .codec_bit = 2,
 127         },
 128         {} /* terminate array by .connected == 0 */
 129 };
 130
 131 /* onyx on machines without headphone */
 132 static struct codec_connection onyx_connections_noheadphones[] = {
 133         {
 134                 .connected = CC_SPEAKERS | CC_LINEOUT |
 135                              CC_LINEOUT_LABELLED_HEADPHONE,
 136                 .codec_bit = 0,
 137         },
 138         {
 139                 .connected = CC_DIGITALOUT,
 140                 .codec_bit = 1,
 141         },
 142         /* FIXME: are these correct? probably not for all the machines
 143          * below ... If not this will need separating. */
 144         {
 145                 .connected = CC_LINEIN,
 146                 .codec_bit = 2,
 147         },
 148         {
 149                 .connected = CC_MICROPHONE,
 150                 .codec_bit = 3,
 151         },
 152         {} /* terminate array by .connected == 0 */
 153 };
 154
 155 /* onyx on machines with real line-out */
 156 static struct codec_connection onyx_connections_reallineout[] = {
 157         {
 158                 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
 159                 .codec_bit = 0,
 160         },
 161         {
 162                 .connected = CC_DIGITALOUT,
 163                 .codec_bit = 1,
 164         },
 165         {
 166                 .connected = CC_LINEIN,
 167                 .codec_bit = 2,
 168         },
 169         {} /* terminate array by .connected == 0 */
 170 };
 171
 172 /* tas on machines without line out */
 173 static struct codec_connection tas_connections_nolineout[] = {
 174         {
 175                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 176                 .codec_bit = 0,
 177         },
 178         {
 179                 .connected = CC_LINEIN,
 180                 .codec_bit = 2,
 181         },
 182         {
 183                 .connected = CC_MICROPHONE,
 184                 .codec_bit = 3,
 185         },
 186         {} /* terminate array by .connected == 0 */
 187 };
 188
 189 /* tas on machines with neither line out nor line in */
 190 static struct codec_connection tas_connections_noline[] = {
 191         {
 192                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 193                 .codec_bit = 0,
 194         },
 195         {
 196                 .connected = CC_MICROPHONE,
 197                 .codec_bit = 3,
 198         },
 199         {} /* terminate array by .connected == 0 */
 200 };
 201
 202 /* tas on machines without microphone */
 203 static struct codec_connection tas_connections_nomic[] = {
 204         {
 205                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 206                 .codec_bit = 0,
 207         },
 208         {
 209                 .connected = CC_LINEIN,
 210                 .codec_bit = 2,
 211         },
 212         {} /* terminate array by .connected == 0 */
 213 };
 214
 215 /* tas on machines with everything connected */
 216 static struct codec_connection tas_connections_all[] = {
 217         {
 218                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 219                 .codec_bit = 0,
 220         },
 221         {
 222                 .connected = CC_LINEIN,
 223                 .codec_bit = 2,
 224         },
 225         {
 226                 .connected = CC_MICROPHONE,
 227                 .codec_bit = 3,
 228         },
 229         {} /* terminate array by .connected == 0 */
 230 };
 231
 232 static struct codec_connection toonie_connections[] = {
 233         {
 234                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 235                 .codec_bit = 0,
 236         },
 237         {} /* terminate array by .connected == 0 */
 238 };
 239
 240 static struct codec_connection topaz_input[] = {
 241         {
 242                 .connected = CC_DIGITALIN,
 243                 .codec_bit = 0,
 244         },
 245         {} /* terminate array by .connected == 0 */
 246 };
 247
 248 static struct codec_connection topaz_output[] = {
 249         {
 250                 .connected = CC_DIGITALOUT,
 251                 .codec_bit = 1,
 252         },
 253         {} /* terminate array by .connected == 0 */
 254 };
 255
 256 static struct codec_connection topaz_inout[] = {
 257         {
 258                 .connected = CC_DIGITALIN,
 259                 .codec_bit = 0,
 260         },
 261         {
 262                 .connected = CC_DIGITALOUT,
 263                 .codec_bit = 1,
 264         },
 265         {} /* terminate array by .connected == 0 */
 266 };
 267
 268 static struct layout layouts[] = {
 269         /* last PowerBooks (15" Oct 2005) */
 270         { .layout_id = 82,
 271           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 272           .codecs[0] = {
 273                 .name = "onyx",
 274                 .connections = onyx_connections_noheadphones,
 275           },
 276           .codecs[1] = {
 277                 .name = "topaz",
 278                 .connections = topaz_input,
 279           },
 280         },
 281         /* PowerMac9,1 */
 282         { .layout_id = 60,
 283           .codecs[0] = {
 284                 .name = "onyx",
 285                 .connections = onyx_connections_reallineout,
 286           },
 287         },
 288         /* PowerMac9,1 */
 289         { .layout_id = 61,
 290           .codecs[0] = {
 291                 .name = "topaz",
 292                 .connections = topaz_input,
 293           },
 294         },
 295         /* PowerBook5,7 */
 296         { .layout_id = 64,
 297           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 298           .codecs[0] = {
 299                 .name = "onyx",
 300                 .connections = onyx_connections_noheadphones,
 301           },
 302         },
 303         /* PowerBook5,7 */
 304         { .layout_id = 65,
 305           .codecs[0] = {
 306                 .name = "topaz",
 307                 .connections = topaz_input,
 308           },
 309         },
 310         /* PowerBook5,9 [17" Oct 2005] */
 311         { .layout_id = 84,
 312           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 313           .codecs[0] = {
 314                 .name = "onyx",
 315                 .connections = onyx_connections_noheadphones,
 316           },
 317           .codecs[1] = {
 318                 .name = "topaz",
 319                 .connections = topaz_input,
 320           },
 321         },
 322         /* PowerMac8,1 */
 323         { .layout_id = 45,
 324           .codecs[0] = {
 325                 .name = "onyx",
 326                 .connections = onyx_connections_noheadphones,
 327           },
 328           .codecs[1] = {
 329                 .name = "topaz",
 330                 .connections = topaz_input,
 331           },
 332         },
 333         /* Quad PowerMac (analog in, analog/digital out) */
 334         { .layout_id = 68,
 335           .codecs[0] = {
 336                 .name = "onyx",
 337                 .connections = onyx_connections_nomic,
 338           },
 339         },
 340         /* Quad PowerMac (digital in) */
 341         { .layout_id = 69,
 342           .codecs[0] = {
 343                 .name = "topaz",
 344                 .connections = topaz_input,
 345           },
 346           .busname = "digital in", .pcmid = 1 },
 347         /* Early 2005 PowerBook (PowerBook 5,6) */
 348         { .layout_id = 70,
 349           .codecs[0] = {
 350                 .name = "tas",
 351                 .connections = tas_connections_nolineout,
 352           },
 353         },
 354         /* PowerBook 5,4 */
 355         { .layout_id = 51,
 356           .codecs[0] = {
 357                 .name = "tas",
 358                 .connections = tas_connections_nolineout,
 359           },
 360         },
 361         /* PowerBook6,7 */
 362         { .layout_id = 80,
 363           .codecs[0] = {
 364                 .name = "tas",
 365                 .connections = tas_connections_noline,
 366           },
 367         },
 368         /* PowerBook6,8 */
 369         { .layout_id = 72,
 370           .codecs[0] = {
 371                 .name = "tas",
 372                 .connections = tas_connections_nolineout,
 373           },
 374         },
 375         /* PowerMac8,2 */
 376         { .layout_id = 86,
 377           .codecs[0] = {
 378                 .name = "onyx",
 379                 .connections = onyx_connections_nomic,
 380           },
 381           .codecs[1] = {
 382                 .name = "topaz",
 383                 .connections = topaz_input,
 384           },
 385         },
 386         /* PowerBook6,7 */
 387         { .layout_id = 92,
 388           .codecs[0] = {
 389                 .name = "tas",
 390                 .connections = tas_connections_nolineout,
 391           },
 392         },
 393         /* PowerMac10,1 (Mac Mini) */
 394         { .layout_id = 58,
 395           .codecs[0] = {
 396                 .name = "toonie",
 397                 .connections = toonie_connections,
 398           },
 399         },
 400         {
 401           .layout_id = 96,
 402           .codecs[0] = {
 403                 .name = "onyx",
 404                 .connections = onyx_connections_noheadphones,
 405           },
 406         },
 407         /* unknown, untested, but this comes from Apple */
 408         { .layout_id = 41,
 409           .codecs[0] = {
 410                 .name = "tas",
 411                 .connections = tas_connections_all,
 412           },
 413         },
 414         { .layout_id = 36,
 415           .codecs[0] = {
 416                 .name = "tas",
 417                 .connections = tas_connections_nomic,
 418           },
 419           .codecs[1] = {
 420                 .name = "topaz",
 421                 .connections = topaz_inout,
 422           },
 423         },
 424         { .layout_id = 47,
 425           .codecs[0] = {
 426                 .name = "onyx",
 427                 .connections = onyx_connections_noheadphones,
 428           },
 429         },
 430         { .layout_id = 48,
 431           .codecs[0] = {
 432                 .name = "topaz",
 433                 .connections = topaz_input,
 434           },
 435         },
 436         { .layout_id = 49,
 437           .codecs[0] = {
 438                 .name = "onyx",
 439                 .connections = onyx_connections_nomic,
 440           },
 441         },
 442         { .layout_id = 50,
 443           .codecs[0] = {
 444                 .name = "topaz",
 445                 .connections = topaz_input,
 446           },
 447         },
 448         { .layout_id = 56,
 449           .codecs[0] = {
 450                 .name = "onyx",
 451                 .connections = onyx_connections_noheadphones,
 452           },
 453         },
 454         { .layout_id = 57,
 455           .codecs[0] = {
 456                 .name = "topaz",
 457                 .connections = topaz_input,
 458           },
 459         },
 460         { .layout_id = 62,
 461           .codecs[0] = {
 462                 .name = "onyx",
 463                 .connections = onyx_connections_noheadphones,
 464           },
 465           .codecs[1] = {
 466                 .name = "topaz",
 467                 .connections = topaz_output,
 468           },
 469         },
 470         { .layout_id = 66,
 471           .codecs[0] = {
 472                 .name = "onyx",
 473                 .connections = onyx_connections_noheadphones,
 474           },
 475         },
 476         { .layout_id = 67,
 477           .codecs[0] = {
 478                 .name = "topaz",
 479                 .connections = topaz_input,
 480           },
 481         },
 482         { .layout_id = 76,
 483           .codecs[0] = {
 484                 .name = "tas",
 485                 .connections = tas_connections_nomic,
 486           },
 487           .codecs[1] = {
 488                 .name = "topaz",
 489                 .connections = topaz_inout,
 490           },
 491         },
 492         { .layout_id = 90,
 493           .codecs[0] = {
 494                 .name = "tas",
 495                 .connections = tas_connections_noline,
 496           },
 497         },
 498         { .layout_id = 94,
 499           .codecs[0] = {
 500                 .name = "onyx",
 501                 /* but it has an external mic?? how to select? */
 502                 .connections = onyx_connections_noheadphones,
 503           },
 504         },
 505         { .layout_id = 98,
 506           .codecs[0] = {
 507                 .name = "toonie",
 508                 .connections = toonie_connections,
 509           },
 510         },
 511         { .layout_id = 100,
 512           .codecs[0] = {
 513                 .name = "topaz",
 514                 .connections = topaz_input,
 515           },
 516           .codecs[1] = {
 517                 .name = "onyx",
 518                 .connections = onyx_connections_noheadphones,
 519           },
 520         },
 521         {}
 522 };
 523
 524 static struct layout *find_layout_by_id(unsigned int id)
 525 {
 526         struct layout *l;
 527
 528         l = layouts;
 529         while (l->layout_id) {
 530                 if (l->layout_id == id)
 531                         return l;
 532                 l++;
 533         }
 534         return NULL;
 535 }
 536
 537 static void use_layout(struct layout *l)
 538 {
 539         int i;
 540
 541         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 542                 if (l->codecs[i].name) {
 543                         request_module("snd-aoa-codec-%s", l->codecs[i].name);
 544                 }
 545         }
 546         /* now we wait for the codecs to call us back */
 547 }
 548
 549 struct layout_dev;
 550
 551 struct layout_dev_ptr {
 552         struct layout_dev *ptr;
 553 };
 554
 555 struct layout_dev {
 556         struct list_head list;
 557         struct soundbus_dev *sdev;
 558         struct device_node *sound;
 559         struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
 560         struct layout *layout;
 561         struct gpio_runtime gpio;
 562
 563         /* we need these for headphone/lineout detection */
 564         struct snd_kcontrol *headphone_ctrl;
 565         struct snd_kcontrol *lineout_ctrl;
 566         struct snd_kcontrol *speaker_ctrl;
 567         struct snd_kcontrol *headphone_detected_ctrl;
 568         struct snd_kcontrol *lineout_detected_ctrl;
 569
 570         struct layout_dev_ptr selfptr_headphone;
 571         struct layout_dev_ptr selfptr_lineout;
 572
 573         u32 have_lineout_detect:1,
 574             have_headphone_detect:1,
 575             switch_on_headphone:1,
 576             switch_on_lineout:1;
 577 };
 578
 579 static LIST_HEAD(layouts_list);
 580 static int layouts_list_items;
 581 /* this can go away but only if we allow multiple cards,
 582  * make the fabric handle all the card stuff, etc... */
 583 static struct layout_dev *layout_device;
 584
 585 #define control_info    snd_ctl_boolean_mono_info
 586
 587 #define AMP_CONTROL(n, description)                                     \
 588 static int n##_control_get(struct snd_kcontrol *kcontrol,               \
 589                            struct snd_ctl_elem_value *ucontrol)         \
 590 {                                                                       \
 591         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 592         if (gpio->methods && gpio->methods->get_##n)                    \
 593                 ucontrol->value.integer.value[0] =                      \
 594                         gpio->methods->get_##n(gpio);                   \
 595         return 0;                                                       \
 596 }                                                                       \
 597 static int n##_control_put(struct snd_kcontrol *kcontrol,               \
 598                            struct snd_ctl_elem_value *ucontrol)         \
 599 {                                                                       \
 600         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 601         if (gpio->methods && gpio->methods->get_##n)                    \
 602                 gpio->methods->set_##n(gpio,                            \
 603                         !!ucontrol->value.integer.value[0]);            \
 604         return 1;                                                       \
 605 }                                                                       \
 606 static struct snd_kcontrol_new n##_ctl = {                              \
 607         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,                            \
 608         .name = description,                                            \
 609         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,                      \
 610         .info = control_info,                                           \
 611         .get = n##_control_get,                                         \
 612         .put = n##_control_put,                                         \
 613 }
 614
 615 AMP_CONTROL(headphone, "Headphone Switch");
 616 AMP_CONTROL(speakers, "Speakers Switch");
 617 AMP_CONTROL(lineout, "Line-Out Switch");
 618
 619 static int detect_choice_get(struct snd_kcontrol *kcontrol,
 620                              struct snd_ctl_elem_value *ucontrol)
 621 {
 622         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 623
 624         switch (kcontrol->private_value) {
 625         case 0:
 626                 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
 627                 break;
 628         case 1:
 629                 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
 630                 break;
 631         default:
 632                 return -ENODEV;
 633         }
 634         return 0;
 635 }
 636
 637 static int detect_choice_put(struct snd_kcontrol *kcontrol,
 638                              struct snd_ctl_elem_value *ucontrol)
 639 {
 640         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 641
 642         switch (kcontrol->private_value) {
 643         case 0:
 644                 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
 645                 break;
 646         case 1:
 647                 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
 648                 break;
 649         default:
 650                 return -ENODEV;
 651         }
 652         return 1;
 653 }
 654
 655 static struct snd_kcontrol_new headphone_detect_choice = {
 656         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 657         .name = "Headphone Detect Autoswitch",
 658         .info = control_info,
 659         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 660         .get = detect_choice_get,
 661         .put = detect_choice_put,
 662         .private_value = 0,
 663 };
 664
 665 static struct snd_kcontrol_new lineout_detect_choice = {
 666         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 667         .name = "Line-Out Detect Autoswitch",
 668         .info = control_info,
 669         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 670         .get = detect_choice_get,
 671         .put = detect_choice_put,
 672         .private_value = 1,
 673 };
 674
 675 static int detected_get(struct snd_kcontrol *kcontrol,
 676                         struct snd_ctl_elem_value *ucontrol)
 677 {
 678         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 679         int v;
 680
 681         switch (kcontrol->private_value) {
 682         case 0:
 683                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 684                                                    AOA_NOTIFY_HEADPHONE);
 685                 break;
 686         case 1:
 687                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 688                                                    AOA_NOTIFY_LINE_OUT);
 689                 break;
 690         default:
 691                 return -ENODEV;
 692         }
 693         ucontrol->value.integer.value[0] = v;
 694         return 0;
 695 }
 696
 697 static struct snd_kcontrol_new headphone_detected = {
 698         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 699         .name = "Headphone Detected",
 700         .info = control_info,
 701         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 702         .get = detected_get,
 703         .private_value = 0,
 704 };
 705
 706 static struct snd_kcontrol_new lineout_detected = {
 707         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 708         .name = "Line-Out Detected",
 709         .info = control_info,
 710         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 711         .get = detected_get,
 712         .private_value = 1,
 713 };
 714
 715 static int check_codec(struct aoa_codec *codec,
 716                        struct layout_dev *ldev,
 717                        struct codec_connect_info *cci)
 718 {
 719         const u32 *ref;
 720         char propname[32];
 721         struct codec_connection *cc;
 722
 723         /* if the codec has a 'codec' node, we require a reference */
 724         if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 725                 snprintf(propname, sizeof(propname),
 726                          "platform-%s-codec-ref", codec->name);
 727                 ref = of_get_property(ldev->sound, propname, NULL);
 728                 if (!ref) {
 729                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 730                                 "required property %s not present\n", propname);
 731                         return -ENODEV;
 732                 }
 733                 if (*ref != codec->node->linux_phandle) {
 734                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 735                                 "%s doesn't match!\n", propname);
 736                         return -ENODEV;
 737                 }
 738         } else {
 739                 if (layouts_list_items != 1) {
 740                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 741                                 "more than one soundbus, but no references.\n");
 742                         return -ENODEV;
 743                 }
 744         }
 745         codec->soundbus_dev = ldev->sdev;
 746         codec->gpio = &ldev->gpio;
 747
 748         cc = cci->connections;
 749         if (!cc)
 750                 return -EINVAL;
 751
 752         printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
 753
 754         codec->connected = 0;
 755         codec->fabric_data = cc;
 756
 757         while (cc->connected) {
 758                 codec->connected |= 1<<cc->codec_bit;
 759                 cc++;
 760         }
 761
 762         return 0;
 763 }
 764
 765 static int layout_found_codec(struct aoa_codec *codec)
 766 {
 767         struct layout_dev *ldev;
 768         int i;
 769
 770         list_for_each_entry(ldev, &layouts_list, list) {
 771                 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 772                         if (!ldev->layout->codecs[i].name)
 773                                 continue;
 774                         if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
 775                                 if (check_codec(codec,
 776                                                 ldev,
 777                                                 &ldev->layout->codecs[i]) == 0)
 778                                         return 0;
 779                         }
 780                 }
 781         }
 782         return -ENODEV;
 783 }
 784
 785 static void layout_remove_codec(struct aoa_codec *codec)
 786 {
 787         int i;
 788         /* here remove the codec from the layout dev's
 789          * codec reference */
 790
 791         codec->soundbus_dev = NULL;
 792         codec->gpio = NULL;
 793         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 794         }
 795 }
 796
 797 static void layout_notify(void *data)
 798 {
 799         struct layout_dev_ptr *dptr = data;
 800         struct layout_dev *ldev;
 801         int v, update;
 802         struct snd_kcontrol *detected, *c;
 803         struct snd_card *card = aoa_get_card();
 804
 805         ldev = dptr->ptr;
 806         if (data == &ldev->selfptr_headphone) {
 807                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
 808                 detected = ldev->headphone_detected_ctrl;
 809                 update = ldev->switch_on_headphone;
 810                 if (update) {
 811                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 812                         ldev->gpio.methods->set_headphone(&ldev->gpio, v);
 813                         ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
 814                 }
 815         } else if (data == &ldev->selfptr_lineout) {
 816                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
 817                 detected = ldev->lineout_detected_ctrl;
 818                 update = ldev->switch_on_lineout;
 819                 if (update) {
 820                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 821                         ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
 822                         ldev->gpio.methods->set_lineout(&ldev->gpio, v);
 823                 }
 824         } else
 825                 return;
 826
 827         if (detected)
 828                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
 829         if (update) {
 830                 c = ldev->headphone_ctrl;
 831                 if (c)
 832                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 833                 c = ldev->speaker_ctrl;
 834                 if (c)
 835                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 836                 c = ldev->lineout_ctrl;
 837                 if (c)
 838                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 839         }
 840 }
 841
 842 static void layout_attached_codec(struct aoa_codec *codec)
 843 {
 844         struct codec_connection *cc;
 845         struct snd_kcontrol *ctl;
 846         int headphones, lineout;
 847         struct layout_dev *ldev = layout_device;
 848
 849         /* need to add this codec to our codec array! */
 850
 851         cc = codec->fabric_data;
 852
 853         headphones = codec->gpio->methods->get_detect(codec->gpio,
 854                                                       AOA_NOTIFY_HEADPHONE);
 855         lineout = codec->gpio->methods->get_detect(codec->gpio,
 856                                                    AOA_NOTIFY_LINE_OUT);
 857
 858         while (cc->connected) {
 859                 if (cc->connected & CC_SPEAKERS) {
 860                         if (headphones <= 0 && lineout <= 0)
 861                                 ldev->gpio.methods->set_speakers(codec->gpio, 1);
 862                         ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
 863                         ldev->speaker_ctrl = ctl;
 864                         aoa_snd_ctl_add(ctl);
 865                 }
 866                 if (cc->connected & CC_HEADPHONE) {
 867                         if (headphones == 1)
 868                                 ldev->gpio.methods->set_headphone(codec->gpio, 1);
 869                         ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
 870                         ldev->headphone_ctrl = ctl;
 871                         aoa_snd_ctl_add(ctl);
 872                         ldev->have_headphone_detect =
 873                                 !ldev->gpio.methods
 874                                         ->set_notify(&ldev->gpio,
 875                                                      AOA_NOTIFY_HEADPHONE,
 876                                                      layout_notify,
 877                                                      &ldev->selfptr_headphone);
 878                         if (ldev->have_headphone_detect) {
 879                                 ctl = snd_ctl_new1(&headphone_detect_choice,
 880                                                    ldev);
 881                                 aoa_snd_ctl_add(ctl);
 882                                 ctl = snd_ctl_new1(&headphone_detected,
 883                                                    ldev);
 884                                 ldev->headphone_detected_ctrl = ctl;
 885                                 aoa_snd_ctl_add(ctl);
 886                         }
 887                 }
 888                 if (cc->connected & CC_LINEOUT) {
 889                         if (lineout == 1)
 890                                 ldev->gpio.methods->set_lineout(codec->gpio, 1);
 891                         ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
 892                         if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 893                                 strlcpy(ctl->id.name,
 894                                         "Headphone Switch", sizeof(ctl->id.name));
 895                         ldev->lineout_ctrl = ctl;
 896                         aoa_snd_ctl_add(ctl);
 897                         ldev->have_lineout_detect =
 898                                 !ldev->gpio.methods
 899                                         ->set_notify(&ldev->gpio,
 900                                                      AOA_NOTIFY_LINE_OUT,
 901                                                      layout_notify,
 902                                                      &ldev->selfptr_lineout);
 903                         if (ldev->have_lineout_detect) {
 904                                 ctl = snd_ctl_new1(&lineout_detect_choice,
 905                                                    ldev);
 906                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 907                                         strlcpy(ctl->id.name,
 908                                                 "Headphone Detect Autoswitch",
 909                                                 sizeof(ctl->id.name));
 910                                 aoa_snd_ctl_add(ctl);
 911                                 ctl = snd_ctl_new1(&lineout_detected,
 912                                                    ldev);
 913                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 914                                         strlcpy(ctl->id.name,
 915                                                 "Headphone Detected",
 916                                                 sizeof(ctl->id.name));
 917                                 ldev->lineout_detected_ctrl = ctl;
 918                                 aoa_snd_ctl_add(ctl);
 919                         }
 920                 }
 921                 cc++;
 922         }
 923         /* now update initial state */
 924         if (ldev->have_headphone_detect)
 925                 layout_notify(&ldev->selfptr_headphone);
 926         if (ldev->have_lineout_detect)
 927                 layout_notify(&ldev->selfptr_lineout);
 928 }
 929
 930 static struct aoa_fabric layout_fabric = {
 931         .name = "SoundByLayout",
 932         .owner = THIS_MODULE,
 933         .found_codec = layout_found_codec,
 934         .remove_codec = layout_remove_codec,
 935         .attached_codec = layout_attached_codec,
 936 };
 937
 938 static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 939 {
 940         struct device_node *sound = NULL;
 941         const unsigned int *layout_id;
 942         struct layout *layout;
 943         struct layout_dev *ldev = NULL;
 944         int err;
 945
 946         /* hm, currently we can only have one ... */
 947         if (layout_device)
 948                 return -ENODEV;
 949
 950         /* by breaking out we keep a reference */
 951         while ((sound = of_get_next_child(sdev->ofdev.node, sound))) {
 952                 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
 953                         break;
 954         }
 955         if (!sound) return -ENODEV;
 956
 957         layout_id = of_get_property(sound, "layout-id", NULL);
 958         if (!layout_id)
 959                 goto outnodev;
 960         printk(KERN_INFO "snd-aoa-fabric-layout: found bus with layout %d\n",
 961                *layout_id);
 962
 963         layout = find_layout_by_id(*layout_id);
 964         if (!layout) {
 965                 printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
 966                 goto outnodev;
 967         }
 968
 969         ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
 970         if (!ldev)
 971                 goto outnodev;
 972
 973         layout_device = ldev;
 974         ldev->sdev = sdev;
 975         ldev->sound = sound;
 976         ldev->layout = layout;
 977         ldev->gpio.node = sound->parent;
 978         switch (layout->layout_id) {
 979         case 41: /* that unknown machine no one seems to have */
 980         case 51: /* PowerBook5,4 */
 981         case 58: /* Mac Mini */
 982                 ldev->gpio.methods = ftr_gpio_methods;
 983                 printk(KERN_DEBUG
 984                        "snd-aoa-fabric-layout: Using direct GPIOs\n");
 985                 break;
 986         default:
 987                 ldev->gpio.methods = pmf_gpio_methods;
 988                 printk(KERN_DEBUG
 989                        "snd-aoa-fabric-layout: Using PMF GPIOs\n");
 990         }
 991         ldev->selfptr_headphone.ptr = ldev;
 992         ldev->selfptr_lineout.ptr = ldev;
 993         sdev->ofdev.dev.driver_data = ldev;
 994         list_add(&ldev->list, &layouts_list);
 995         layouts_list_items++;
 996
 997         /* assign these before registering ourselves, so
 998          * callbacks that are done during registration
 999          * already have the values */
1000         sdev->pcmid = ldev->layout->pcmid;
1001         if (ldev->layout->busname) {
1002                 sdev->pcmname = ldev->layout->busname;
1003         } else {
1004                 sdev->pcmname = "Master";
1005         }
1006
1007         ldev->gpio.methods->init(&ldev->gpio);
1008
1009         err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
1010         if (err && err != -EALREADY) {
1011                 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1012                                  " another fabric is active!\n");
1013                 goto outlistdel;
1014         }
1015
1016         use_layout(layout);
1017         ldev->switch_on_headphone = 1;
1018         ldev->switch_on_lineout = 1;
1019         return 0;
1020  outlistdel:
1021         /* we won't be using these then... */
1022         ldev->gpio.methods->exit(&ldev->gpio);
1023         /* reset if we didn't use it */
1024         sdev->pcmname = NULL;
1025         sdev->pcmid = -1;
1026         list_del(&ldev->list);
1027         layouts_list_items--;
1028  outnodev:
1029         of_node_put(sound);
1030         layout_device = NULL;
1031         kfree(ldev);
1032         return -ENODEV;
1033 }
1034
1035 static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1036 {
1037         struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1038         int i;
1039
1040         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1041                 if (ldev->codecs[i]) {
1042                         aoa_fabric_unlink_codec(ldev->codecs[i]);
1043                 }
1044                 ldev->codecs[i] = NULL;
1045         }
1046         list_del(&ldev->list);
1047         layouts_list_items--;
1048         of_node_put(ldev->sound);
1049
1050         ldev->gpio.methods->set_notify(&ldev->gpio,
1051                                        AOA_NOTIFY_HEADPHONE,
1052                                        NULL,
1053                                        NULL);
1054         ldev->gpio.methods->set_notify(&ldev->gpio,
1055                                        AOA_NOTIFY_LINE_OUT,
1056                                        NULL,
1057                                        NULL);
1058
1059         ldev->gpio.methods->exit(&ldev->gpio);
1060         layout_device = NULL;
1061         kfree(ldev);
1062         sdev->pcmid = -1;
1063         sdev->pcmname = NULL;
1064         return 0;
1065 }
1066
1067 #ifdef CONFIG_PM
1068 static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1069 {
1070         struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1071
1072         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1073                 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1074
1075         return 0;
1076 }
1077
1078 static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1079 {
1080         struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1081
1082         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1083                 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1084
1085         return 0;
1086 }
1087 #endif
1088
1089 static struct soundbus_driver aoa_soundbus_driver = {
1090         .name = "snd_aoa_soundbus_drv",
1091         .owner = THIS_MODULE,
1092         .probe = aoa_fabric_layout_probe,
1093         .remove = aoa_fabric_layout_remove,
1094 #ifdef CONFIG_PM
1095         .suspend = aoa_fabric_layout_suspend,
1096         .resume = aoa_fabric_layout_resume,
1097 #endif
1098         .driver = {
1099                 .owner = THIS_MODULE,
1100         }
1101 };
1102
1103 static int __init aoa_fabric_layout_init(void)
1104 {
1105         int err;
1106
1107         err = soundbus_register_driver(&aoa_soundbus_driver);
1108         if (err)
1109                 return err;
1110         return 0;
1111 }
1112
1113 static void __exit aoa_fabric_layout_exit(void)
1114 {
1115         soundbus_unregister_driver(&aoa_soundbus_driver);
1116         aoa_fabric_unregister(&layout_fabric);
1117 }
1118
1119 module_init(aoa_fabric_layout_init);
1120 module_exit(aoa_fabric_layout_exit);