sound/aoa/fabrics/layout.c

   1 /*
   2  * Apple Onboard Audio driver -- layout/machine id fabric
   3  *
   4  * Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * GPL v2, can be found in COPYING.
   7  *
   8  *
   9  * This fabric module looks for sound codecs based on the
  10  * layout-id or device-id property in the device tree.
  11  */
  12 #include <asm/prom.h>
  13 #include <linux/list.h>
  14 #include <linux/module.h>
  15 #include "../aoa.h"
  16 #include "../soundbus/soundbus.h"
  17
  18 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
  19 MODULE_LICENSE("GPL");
  20 MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
  21
  22 #define MAX_CODECS_PER_BUS      2
  23
  24 /* These are the connections the layout fabric
  25  * knows about. It doesn't really care about the
  26  * input ones, but I thought I'd separate them
  27  * to give them proper names. The thing is that
  28  * Apple usually will distinguish the active output
  29  * by GPIOs, while the active input is set directly
  30  * on the codec. Hence we here tell the codec what
  31  * we think is connected. This information is hard-
  32  * coded below ... */
  33 #define CC_SPEAKERS     (1<<0)
  34 #define CC_HEADPHONE    (1<<1)
  35 #define CC_LINEOUT      (1<<2)
  36 #define CC_DIGITALOUT   (1<<3)
  37 #define CC_LINEIN       (1<<4)
  38 #define CC_MICROPHONE   (1<<5)
  39 #define CC_DIGITALIN    (1<<6)
  40 /* pretty bogus but users complain...
  41  * This is a flag saying that the LINEOUT
  42  * should be renamed to HEADPHONE.
  43  * be careful with input detection! */
  44 #define CC_LINEOUT_LABELLED_HEADPHONE   (1<<7)
  45
  46 struct codec_connection {
  47         /* CC_ flags from above */
  48         int connected;
  49         /* codec dependent bit to be set in the aoa_codec.connected field.
  50          * This intentionally doesn't have any generic flags because the
  51          * fabric has to know the codec anyway and all codecs might have
  52          * different connectors */
  53         int codec_bit;
  54 };
  55
  56 struct codec_connect_info {
  57         char *name;
  58         struct codec_connection *connections;
  59 };
  60
  61 #define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
  62
  63 struct layout {
  64         unsigned int layout_id, device_id;
  65         struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
  66         int flags;
  67
  68         /* if busname is not assigned, we use 'Master' below,
  69          * so that our layout table doesn't need to be filled
  70          * too much.
  71          * We only assign these two if we expect to find more
  72          * than one soundbus, i.e. on those machines with
  73          * multiple layout-ids */
  74         char *busname;
  75         int pcmid;
  76 };
  77
  78 MODULE_ALIAS("sound-layout-36");
  79 MODULE_ALIAS("sound-layout-41");
  80 MODULE_ALIAS("sound-layout-45");
  81 MODULE_ALIAS("sound-layout-47");
  82 MODULE_ALIAS("sound-layout-48");
  83 MODULE_ALIAS("sound-layout-49");
  84 MODULE_ALIAS("sound-layout-50");
  85 MODULE_ALIAS("sound-layout-51");
  86 MODULE_ALIAS("sound-layout-56");
  87 MODULE_ALIAS("sound-layout-57");
  88 MODULE_ALIAS("sound-layout-58");
  89 MODULE_ALIAS("sound-layout-60");
  90 MODULE_ALIAS("sound-layout-61");
  91 MODULE_ALIAS("sound-layout-62");
  92 MODULE_ALIAS("sound-layout-64");
  93 MODULE_ALIAS("sound-layout-65");
  94 MODULE_ALIAS("sound-layout-66");
  95 MODULE_ALIAS("sound-layout-67");
  96 MODULE_ALIAS("sound-layout-68");
  97 MODULE_ALIAS("sound-layout-69");
  98 MODULE_ALIAS("sound-layout-70");
  99 MODULE_ALIAS("sound-layout-72");
 100 MODULE_ALIAS("sound-layout-76");
 101 MODULE_ALIAS("sound-layout-80");
 102 MODULE_ALIAS("sound-layout-82");
 103 MODULE_ALIAS("sound-layout-84");
 104 MODULE_ALIAS("sound-layout-86");
 105 MODULE_ALIAS("sound-layout-90");
 106 MODULE_ALIAS("sound-layout-92");
 107 MODULE_ALIAS("sound-layout-94");
 108 MODULE_ALIAS("sound-layout-96");
 109 MODULE_ALIAS("sound-layout-98");
 110 MODULE_ALIAS("sound-layout-100");
 111
 112 MODULE_ALIAS("aoa-device-id-14");
 113 MODULE_ALIAS("aoa-device-id-22");
 114 MODULE_ALIAS("aoa-device-id-35");
 115
 116 /* onyx with all but microphone connected */
 117 static struct codec_connection onyx_connections_nomic[] = {
 118         {
 119                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 120                 .codec_bit = 0,
 121         },
 122         {
 123                 .connected = CC_DIGITALOUT,
 124                 .codec_bit = 1,
 125         },
 126         {
 127                 .connected = CC_LINEIN,
 128                 .codec_bit = 2,
 129         },
 130         {} /* terminate array by .connected == 0 */
 131 };
 132
 133 /* onyx on machines without headphone */
 134 static struct codec_connection onyx_connections_noheadphones[] = {
 135         {
 136                 .connected = CC_SPEAKERS | CC_LINEOUT |
 137                              CC_LINEOUT_LABELLED_HEADPHONE,
 138                 .codec_bit = 0,
 139         },
 140         {
 141                 .connected = CC_DIGITALOUT,
 142                 .codec_bit = 1,
 143         },
 144         /* FIXME: are these correct? probably not for all the machines
 145          * below ... If not this will need separating. */
 146         {
 147                 .connected = CC_LINEIN,
 148                 .codec_bit = 2,
 149         },
 150         {
 151                 .connected = CC_MICROPHONE,
 152                 .codec_bit = 3,
 153         },
 154         {} /* terminate array by .connected == 0 */
 155 };
 156
 157 /* onyx on machines with real line-out */
 158 static struct codec_connection onyx_connections_reallineout[] = {
 159         {
 160                 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
 161                 .codec_bit = 0,
 162         },
 163         {
 164                 .connected = CC_DIGITALOUT,
 165                 .codec_bit = 1,
 166         },
 167         {
 168                 .connected = CC_LINEIN,
 169                 .codec_bit = 2,
 170         },
 171         {} /* terminate array by .connected == 0 */
 172 };
 173
 174 /* tas on machines without line out */
 175 static struct codec_connection tas_connections_nolineout[] = {
 176         {
 177                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 178                 .codec_bit = 0,
 179         },
 180         {
 181                 .connected = CC_LINEIN,
 182                 .codec_bit = 2,
 183         },
 184         {
 185                 .connected = CC_MICROPHONE,
 186                 .codec_bit = 3,
 187         },
 188         {} /* terminate array by .connected == 0 */
 189 };
 190
 191 /* tas on machines with neither line out nor line in */
 192 static struct codec_connection tas_connections_noline[] = {
 193         {
 194                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 195                 .codec_bit = 0,
 196         },
 197         {
 198                 .connected = CC_MICROPHONE,
 199                 .codec_bit = 3,
 200         },
 201         {} /* terminate array by .connected == 0 */
 202 };
 203
 204 /* tas on machines without microphone */
 205 static struct codec_connection tas_connections_nomic[] = {
 206         {
 207                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 208                 .codec_bit = 0,
 209         },
 210         {
 211                 .connected = CC_LINEIN,
 212                 .codec_bit = 2,
 213         },
 214         {} /* terminate array by .connected == 0 */
 215 };
 216
 217 /* tas on machines with everything connected */
 218 static struct codec_connection tas_connections_all[] = {
 219         {
 220                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 221                 .codec_bit = 0,
 222         },
 223         {
 224                 .connected = CC_LINEIN,
 225                 .codec_bit = 2,
 226         },
 227         {
 228                 .connected = CC_MICROPHONE,
 229                 .codec_bit = 3,
 230         },
 231         {} /* terminate array by .connected == 0 */
 232 };
 233
 234 static struct codec_connection toonie_connections[] = {
 235         {
 236                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 237                 .codec_bit = 0,
 238         },
 239         {} /* terminate array by .connected == 0 */
 240 };
 241
 242 static struct codec_connection topaz_input[] = {
 243         {
 244                 .connected = CC_DIGITALIN,
 245                 .codec_bit = 0,
 246         },
 247         {} /* terminate array by .connected == 0 */
 248 };
 249
 250 static struct codec_connection topaz_output[] = {
 251         {
 252                 .connected = CC_DIGITALOUT,
 253                 .codec_bit = 1,
 254         },
 255         {} /* terminate array by .connected == 0 */
 256 };
 257
 258 static struct codec_connection topaz_inout[] = {
 259         {
 260                 .connected = CC_DIGITALIN,
 261                 .codec_bit = 0,
 262         },
 263         {
 264                 .connected = CC_DIGITALOUT,
 265                 .codec_bit = 1,
 266         },
 267         {} /* terminate array by .connected == 0 */
 268 };
 269
 270 static struct layout layouts[] = {
 271         /* last PowerBooks (15" Oct 2005) */
 272         { .layout_id = 82,
 273           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 274           .codecs[0] = {
 275                 .name = "onyx",
 276                 .connections = onyx_connections_noheadphones,
 277           },
 278           .codecs[1] = {
 279                 .name = "topaz",
 280                 .connections = topaz_input,
 281           },
 282         },
 283         /* PowerMac9,1 */
 284         { .layout_id = 60,
 285           .codecs[0] = {
 286                 .name = "onyx",
 287                 .connections = onyx_connections_reallineout,
 288           },
 289         },
 290         /* PowerMac9,1 */
 291         { .layout_id = 61,
 292           .codecs[0] = {
 293                 .name = "topaz",
 294                 .connections = topaz_input,
 295           },
 296         },
 297         /* PowerBook5,7 */
 298         { .layout_id = 64,
 299           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 300           .codecs[0] = {
 301                 .name = "onyx",
 302                 .connections = onyx_connections_noheadphones,
 303           },
 304         },
 305         /* PowerBook5,7 */
 306         { .layout_id = 65,
 307           .codecs[0] = {
 308                 .name = "topaz",
 309                 .connections = topaz_input,
 310           },
 311         },
 312         /* PowerBook5,9 [17" Oct 2005] */
 313         { .layout_id = 84,
 314           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 315           .codecs[0] = {
 316                 .name = "onyx",
 317                 .connections = onyx_connections_noheadphones,
 318           },
 319           .codecs[1] = {
 320                 .name = "topaz",
 321                 .connections = topaz_input,
 322           },
 323         },
 324         /* PowerMac8,1 */
 325         { .layout_id = 45,
 326           .codecs[0] = {
 327                 .name = "onyx",
 328                 .connections = onyx_connections_noheadphones,
 329           },
 330           .codecs[1] = {
 331                 .name = "topaz",
 332                 .connections = topaz_input,
 333           },
 334         },
 335         /* Quad PowerMac (analog in, analog/digital out) */
 336         { .layout_id = 68,
 337           .codecs[0] = {
 338                 .name = "onyx",
 339                 .connections = onyx_connections_nomic,
 340           },
 341         },
 342         /* Quad PowerMac (digital in) */
 343         { .layout_id = 69,
 344           .codecs[0] = {
 345                 .name = "topaz",
 346                 .connections = topaz_input,
 347           },
 348           .busname = "digital in", .pcmid = 1 },
 349         /* Early 2005 PowerBook (PowerBook 5,6) */
 350         { .layout_id = 70,
 351           .codecs[0] = {
 352                 .name = "tas",
 353                 .connections = tas_connections_nolineout,
 354           },
 355         },
 356         /* PowerBook 5,4 */
 357         { .layout_id = 51,
 358           .codecs[0] = {
 359                 .name = "tas",
 360                 .connections = tas_connections_nolineout,
 361           },
 362         },
 363         /* PowerBook6,7 */
 364         { .layout_id = 80,
 365           .codecs[0] = {
 366                 .name = "tas",
 367                 .connections = tas_connections_noline,
 368           },
 369         },
 370         /* PowerBook6,8 */
 371         { .layout_id = 72,
 372           .codecs[0] = {
 373                 .name = "tas",
 374                 .connections = tas_connections_nolineout,
 375           },
 376         },
 377         /* PowerMac8,2 */
 378         { .layout_id = 86,
 379           .codecs[0] = {
 380                 .name = "onyx",
 381                 .connections = onyx_connections_nomic,
 382           },
 383           .codecs[1] = {
 384                 .name = "topaz",
 385                 .connections = topaz_input,
 386           },
 387         },
 388         /* PowerBook6,7 */
 389         { .layout_id = 92,
 390           .codecs[0] = {
 391                 .name = "tas",
 392                 .connections = tas_connections_nolineout,
 393           },
 394         },
 395         /* PowerMac10,1 (Mac Mini) */
 396         { .layout_id = 58,
 397           .codecs[0] = {
 398                 .name = "toonie",
 399                 .connections = toonie_connections,
 400           },
 401         },
 402         {
 403           .layout_id = 96,
 404           .codecs[0] = {
 405                 .name = "onyx",
 406                 .connections = onyx_connections_noheadphones,
 407           },
 408         },
 409         /* unknown, untested, but this comes from Apple */
 410         { .layout_id = 41,
 411           .codecs[0] = {
 412                 .name = "tas",
 413                 .connections = tas_connections_all,
 414           },
 415         },
 416         { .layout_id = 36,
 417           .codecs[0] = {
 418                 .name = "tas",
 419                 .connections = tas_connections_nomic,
 420           },
 421           .codecs[1] = {
 422                 .name = "topaz",
 423                 .connections = topaz_inout,
 424           },
 425         },
 426         { .layout_id = 47,
 427           .codecs[0] = {
 428                 .name = "onyx",
 429                 .connections = onyx_connections_noheadphones,
 430           },
 431         },
 432         { .layout_id = 48,
 433           .codecs[0] = {
 434                 .name = "topaz",
 435                 .connections = topaz_input,
 436           },
 437         },
 438         { .layout_id = 49,
 439           .codecs[0] = {
 440                 .name = "onyx",
 441                 .connections = onyx_connections_nomic,
 442           },
 443         },
 444         { .layout_id = 50,
 445           .codecs[0] = {
 446                 .name = "topaz",
 447                 .connections = topaz_input,
 448           },
 449         },
 450         { .layout_id = 56,
 451           .codecs[0] = {
 452                 .name = "onyx",
 453                 .connections = onyx_connections_noheadphones,
 454           },
 455         },
 456         { .layout_id = 57,
 457           .codecs[0] = {
 458                 .name = "topaz",
 459                 .connections = topaz_input,
 460           },
 461         },
 462         { .layout_id = 62,
 463           .codecs[0] = {
 464                 .name = "onyx",
 465                 .connections = onyx_connections_noheadphones,
 466           },
 467           .codecs[1] = {
 468                 .name = "topaz",
 469                 .connections = topaz_output,
 470           },
 471         },
 472         { .layout_id = 66,
 473           .codecs[0] = {
 474                 .name = "onyx",
 475                 .connections = onyx_connections_noheadphones,
 476           },
 477         },
 478         { .layout_id = 67,
 479           .codecs[0] = {
 480                 .name = "topaz",
 481                 .connections = topaz_input,
 482           },
 483         },
 484         { .layout_id = 76,
 485           .codecs[0] = {
 486                 .name = "tas",
 487                 .connections = tas_connections_nomic,
 488           },
 489           .codecs[1] = {
 490                 .name = "topaz",
 491                 .connections = topaz_inout,
 492           },
 493         },
 494         { .layout_id = 90,
 495           .codecs[0] = {
 496                 .name = "tas",
 497                 .connections = tas_connections_noline,
 498           },
 499         },
 500         { .layout_id = 94,
 501           .codecs[0] = {
 502                 .name = "onyx",
 503                 /* but it has an external mic?? how to select? */
 504                 .connections = onyx_connections_noheadphones,
 505           },
 506         },
 507         { .layout_id = 98,
 508           .codecs[0] = {
 509                 .name = "toonie",
 510                 .connections = toonie_connections,
 511           },
 512         },
 513         { .layout_id = 100,
 514           .codecs[0] = {
 515                 .name = "topaz",
 516                 .connections = topaz_input,
 517           },
 518           .codecs[1] = {
 519                 .name = "onyx",
 520                 .connections = onyx_connections_noheadphones,
 521           },
 522         },
 523         /* PowerMac3,4 */
 524         { .device_id = 14,
 525           .codecs[0] = {
 526                 .name = "tas",
 527                 .connections = tas_connections_noline,
 528           },
 529         },
 530         /* PowerMac3,6 */
 531         { .device_id = 22,
 532           .codecs[0] = {
 533                 .name = "tas",
 534                 .connections = tas_connections_all,
 535           },
 536         },
 537         /* PowerBook5,2 */
 538         { .device_id = 35,
 539           .codecs[0] = {
 540                 .name = "tas",
 541                 .connections = tas_connections_all,
 542           },
 543         },
 544         {}
 545 };
 546
 547 static struct layout *find_layout_by_id(unsigned int id)
 548 {
 549         struct layout *l;
 550
 551         l = layouts;
 552         while (l->codecs[0].name) {
 553                 if (l->layout_id == id)
 554                         return l;
 555                 l++;
 556         }
 557         return NULL;
 558 }
 559
 560 static struct layout *find_layout_by_device(unsigned int id)
 561 {
 562         struct layout *l;
 563
 564         l = layouts;
 565         while (l->codecs[0].name) {
 566                 if (l->device_id == id)
 567                         return l;
 568                 l++;
 569         }
 570         return NULL;
 571 }
 572
 573 static void use_layout(struct layout *l)
 574 {
 575         int i;
 576
 577         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 578                 if (l->codecs[i].name) {
 579                         request_module("snd-aoa-codec-%s", l->codecs[i].name);
 580                 }
 581         }
 582         /* now we wait for the codecs to call us back */
 583 }
 584
 585 struct layout_dev;
 586
 587 struct layout_dev_ptr {
 588         struct layout_dev *ptr;
 589 };
 590
 591 struct layout_dev {
 592         struct list_head list;
 593         struct soundbus_dev *sdev;
 594         struct device_node *sound;
 595         struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
 596         struct layout *layout;
 597         struct gpio_runtime gpio;
 598
 599         /* we need these for headphone/lineout detection */
 600         struct snd_kcontrol *headphone_ctrl;
 601         struct snd_kcontrol *lineout_ctrl;
 602         struct snd_kcontrol *speaker_ctrl;
 603         struct snd_kcontrol *master_ctrl;
 604         struct snd_kcontrol *headphone_detected_ctrl;
 605         struct snd_kcontrol *lineout_detected_ctrl;
 606
 607         struct layout_dev_ptr selfptr_headphone;
 608         struct layout_dev_ptr selfptr_lineout;
 609
 610         u32 have_lineout_detect:1,
 611             have_headphone_detect:1,
 612             switch_on_headphone:1,
 613             switch_on_lineout:1;
 614 };
 615
 616 static LIST_HEAD(layouts_list);
 617 static int layouts_list_items;
 618 /* this can go away but only if we allow multiple cards,
 619  * make the fabric handle all the card stuff, etc... */
 620 static struct layout_dev *layout_device;
 621
 622 #define control_info    snd_ctl_boolean_mono_info
 623
 624 #define AMP_CONTROL(n, description)                                     \
 625 static int n##_control_get(struct snd_kcontrol *kcontrol,               \
 626                            struct snd_ctl_elem_value *ucontrol)         \
 627 {                                                                       \
 628         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 629         if (gpio->methods && gpio->methods->get_##n)                    \
 630                 ucontrol->value.integer.value[0] =                      \
 631                         gpio->methods->get_##n(gpio);                   \
 632         return 0;                                                       \
 633 }                                                                       \
 634 static int n##_control_put(struct snd_kcontrol *kcontrol,               \
 635                            struct snd_ctl_elem_value *ucontrol)         \
 636 {                                                                       \
 637         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 638         if (gpio->methods && gpio->methods->get_##n)                    \
 639                 gpio->methods->set_##n(gpio,                            \
 640                         !!ucontrol->value.integer.value[0]);            \
 641         return 1;                                                       \
 642 }                                                                       \
 643 static struct snd_kcontrol_new n##_ctl = {                              \
 644         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,                            \
 645         .name = description,                                            \
 646         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,                      \
 647         .info = control_info,                                           \
 648         .get = n##_control_get,                                         \
 649         .put = n##_control_put,                                         \
 650 }
 651
 652 AMP_CONTROL(headphone, "Headphone Switch");
 653 AMP_CONTROL(speakers, "Speakers Switch");
 654 AMP_CONTROL(lineout, "Line-Out Switch");
 655 AMP_CONTROL(master, "Master Switch");
 656
 657 static int detect_choice_get(struct snd_kcontrol *kcontrol,
 658                              struct snd_ctl_elem_value *ucontrol)
 659 {
 660         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 661
 662         switch (kcontrol->private_value) {
 663         case 0:
 664                 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
 665                 break;
 666         case 1:
 667                 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
 668                 break;
 669         default:
 670                 return -ENODEV;
 671         }
 672         return 0;
 673 }
 674
 675 static int detect_choice_put(struct snd_kcontrol *kcontrol,
 676                              struct snd_ctl_elem_value *ucontrol)
 677 {
 678         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 679
 680         switch (kcontrol->private_value) {
 681         case 0:
 682                 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
 683                 break;
 684         case 1:
 685                 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
 686                 break;
 687         default:
 688                 return -ENODEV;
 689         }
 690         return 1;
 691 }
 692
 693 static struct snd_kcontrol_new headphone_detect_choice = {
 694         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 695         .name = "Headphone Detect Autoswitch",
 696         .info = control_info,
 697         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 698         .get = detect_choice_get,
 699         .put = detect_choice_put,
 700         .private_value = 0,
 701 };
 702
 703 static struct snd_kcontrol_new lineout_detect_choice = {
 704         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 705         .name = "Line-Out Detect Autoswitch",
 706         .info = control_info,
 707         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 708         .get = detect_choice_get,
 709         .put = detect_choice_put,
 710         .private_value = 1,
 711 };
 712
 713 static int detected_get(struct snd_kcontrol *kcontrol,
 714                         struct snd_ctl_elem_value *ucontrol)
 715 {
 716         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 717         int v;
 718
 719         switch (kcontrol->private_value) {
 720         case 0:
 721                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 722                                                    AOA_NOTIFY_HEADPHONE);
 723                 break;
 724         case 1:
 725                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 726                                                    AOA_NOTIFY_LINE_OUT);
 727                 break;
 728         default:
 729                 return -ENODEV;
 730         }
 731         ucontrol->value.integer.value[0] = v;
 732         return 0;
 733 }
 734
 735 static struct snd_kcontrol_new headphone_detected = {
 736         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 737         .name = "Headphone Detected",
 738         .info = control_info,
 739         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 740         .get = detected_get,
 741         .private_value = 0,
 742 };
 743
 744 static struct snd_kcontrol_new lineout_detected = {
 745         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 746         .name = "Line-Out Detected",
 747         .info = control_info,
 748         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 749         .get = detected_get,
 750         .private_value = 1,
 751 };
 752
 753 static int check_codec(struct aoa_codec *codec,
 754                        struct layout_dev *ldev,
 755                        struct codec_connect_info *cci)
 756 {
 757         const u32 *ref;
 758         char propname[32];
 759         struct codec_connection *cc;
 760
 761         /* if the codec has a 'codec' node, we require a reference */
 762         if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 763                 snprintf(propname, sizeof(propname),
 764                          "platform-%s-codec-ref", codec->name);
 765                 ref = of_get_property(ldev->sound, propname, NULL);
 766                 if (!ref) {
 767                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 768                                 "required property %s not present\n", propname);
 769                         return -ENODEV;
 770                 }
 771                 if (*ref != codec->node->linux_phandle) {
 772                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 773                                 "%s doesn't match!\n", propname);
 774                         return -ENODEV;
 775                 }
 776         } else {
 777                 if (layouts_list_items != 1) {
 778                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 779                                 "more than one soundbus, but no references.\n");
 780                         return -ENODEV;
 781                 }
 782         }
 783         codec->soundbus_dev = ldev->sdev;
 784         codec->gpio = &ldev->gpio;
 785
 786         cc = cci->connections;
 787         if (!cc)
 788                 return -EINVAL;
 789
 790         printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
 791
 792         codec->connected = 0;
 793         codec->fabric_data = cc;
 794
 795         while (cc->connected) {
 796                 codec->connected |= 1<<cc->codec_bit;
 797                 cc++;
 798         }
 799
 800         return 0;
 801 }
 802
 803 static int layout_found_codec(struct aoa_codec *codec)
 804 {
 805         struct layout_dev *ldev;
 806         int i;
 807
 808         list_for_each_entry(ldev, &layouts_list, list) {
 809                 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 810                         if (!ldev->layout->codecs[i].name)
 811                                 continue;
 812                         if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
 813                                 if (check_codec(codec,
 814                                                 ldev,
 815                                                 &ldev->layout->codecs[i]) == 0)
 816                                         return 0;
 817                         }
 818                 }
 819         }
 820         return -ENODEV;
 821 }
 822
 823 static void layout_remove_codec(struct aoa_codec *codec)
 824 {
 825         int i;
 826         /* here remove the codec from the layout dev's
 827          * codec reference */
 828
 829         codec->soundbus_dev = NULL;
 830         codec->gpio = NULL;
 831         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 832         }
 833 }
 834
 835 static void layout_notify(void *data)
 836 {
 837         struct layout_dev_ptr *dptr = data;
 838         struct layout_dev *ldev;
 839         int v, update;
 840         struct snd_kcontrol *detected, *c;
 841         struct snd_card *card = aoa_get_card();
 842
 843         ldev = dptr->ptr;
 844         if (data == &ldev->selfptr_headphone) {
 845                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
 846                 detected = ldev->headphone_detected_ctrl;
 847                 update = ldev->switch_on_headphone;
 848                 if (update) {
 849                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 850                         ldev->gpio.methods->set_headphone(&ldev->gpio, v);
 851                         ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
 852                 }
 853         } else if (data == &ldev->selfptr_lineout) {
 854                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
 855                 detected = ldev->lineout_detected_ctrl;
 856                 update = ldev->switch_on_lineout;
 857                 if (update) {
 858                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 859                         ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
 860                         ldev->gpio.methods->set_lineout(&ldev->gpio, v);
 861                 }
 862         } else
 863                 return;
 864
 865         if (detected)
 866                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
 867         if (update) {
 868                 c = ldev->headphone_ctrl;
 869                 if (c)
 870                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 871                 c = ldev->speaker_ctrl;
 872                 if (c)
 873                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 874                 c = ldev->lineout_ctrl;
 875                 if (c)
 876                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 877         }
 878 }
 879
 880 static void layout_attached_codec(struct aoa_codec *codec)
 881 {
 882         struct codec_connection *cc;
 883         struct snd_kcontrol *ctl;
 884         int headphones, lineout;
 885         struct layout_dev *ldev = layout_device;
 886
 887         /* need to add this codec to our codec array! */
 888
 889         cc = codec->fabric_data;
 890
 891         headphones = codec->gpio->methods->get_detect(codec->gpio,
 892                                                       AOA_NOTIFY_HEADPHONE);
 893         lineout = codec->gpio->methods->get_detect(codec->gpio,
 894                                                    AOA_NOTIFY_LINE_OUT);
 895
 896         if (codec->gpio->methods->set_master) {
 897                 ctl = snd_ctl_new1(&master_ctl, codec->gpio);
 898                 ldev->master_ctrl = ctl;
 899                 aoa_snd_ctl_add(ctl);
 900         }
 901         while (cc->connected) {
 902                 if (cc->connected & CC_SPEAKERS) {
 903                         if (headphones <= 0 && lineout <= 0)
 904                                 ldev->gpio.methods->set_speakers(codec->gpio, 1);
 905                         ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
 906                         ldev->speaker_ctrl = ctl;
 907                         aoa_snd_ctl_add(ctl);
 908                 }
 909                 if (cc->connected & CC_HEADPHONE) {
 910                         if (headphones == 1)
 911                                 ldev->gpio.methods->set_headphone(codec->gpio, 1);
 912                         ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
 913                         ldev->headphone_ctrl = ctl;
 914                         aoa_snd_ctl_add(ctl);
 915                         ldev->have_headphone_detect =
 916                                 !ldev->gpio.methods
 917                                         ->set_notify(&ldev->gpio,
 918                                                      AOA_NOTIFY_HEADPHONE,
 919                                                      layout_notify,
 920                                                      &ldev->selfptr_headphone);
 921                         if (ldev->have_headphone_detect) {
 922                                 ctl = snd_ctl_new1(&headphone_detect_choice,
 923                                                    ldev);
 924                                 aoa_snd_ctl_add(ctl);
 925                                 ctl = snd_ctl_new1(&headphone_detected,
 926                                                    ldev);
 927                                 ldev->headphone_detected_ctrl = ctl;
 928                                 aoa_snd_ctl_add(ctl);
 929                         }
 930                 }
 931                 if (cc->connected & CC_LINEOUT) {
 932                         if (lineout == 1)
 933                                 ldev->gpio.methods->set_lineout(codec->gpio, 1);
 934                         ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
 935                         if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 936                                 strlcpy(ctl->id.name,
 937                                         "Headphone Switch", sizeof(ctl->id.name));
 938                         ldev->lineout_ctrl = ctl;
 939                         aoa_snd_ctl_add(ctl);
 940                         ldev->have_lineout_detect =
 941                                 !ldev->gpio.methods
 942                                         ->set_notify(&ldev->gpio,
 943                                                      AOA_NOTIFY_LINE_OUT,
 944                                                      layout_notify,
 945                                                      &ldev->selfptr_lineout);
 946                         if (ldev->have_lineout_detect) {
 947                                 ctl = snd_ctl_new1(&lineout_detect_choice,
 948                                                    ldev);
 949                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 950                                         strlcpy(ctl->id.name,
 951                                                 "Headphone Detect Autoswitch",
 952                                                 sizeof(ctl->id.name));
 953                                 aoa_snd_ctl_add(ctl);
 954                                 ctl = snd_ctl_new1(&lineout_detected,
 955                                                    ldev);
 956                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 957                                         strlcpy(ctl->id.name,
 958                                                 "Headphone Detected",
 959                                                 sizeof(ctl->id.name));
 960                                 ldev->lineout_detected_ctrl = ctl;
 961                                 aoa_snd_ctl_add(ctl);
 962                         }
 963                 }
 964                 cc++;
 965         }
 966         /* now update initial state */
 967         if (ldev->have_headphone_detect)
 968                 layout_notify(&ldev->selfptr_headphone);
 969         if (ldev->have_lineout_detect)
 970                 layout_notify(&ldev->selfptr_lineout);
 971 }
 972
 973 static struct aoa_fabric layout_fabric = {
 974         .name = "SoundByLayout",
 975         .owner = THIS_MODULE,
 976         .found_codec = layout_found_codec,
 977         .remove_codec = layout_remove_codec,
 978         .attached_codec = layout_attached_codec,
 979 };
 980
 981 static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 982 {
 983         struct device_node *sound = NULL;
 984         const unsigned int *id;
 985         struct layout *layout = NULL;
 986         struct layout_dev *ldev = NULL;
 987         int err;
 988
 989         /* hm, currently we can only have one ... */
 990         if (layout_device)
 991                 return -ENODEV;
 992
 993         /* by breaking out we keep a reference */
 994         while ((sound = of_get_next_child(sdev->ofdev.node, sound))) {
 995                 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
 996                         break;
 997         }
 998         if (!sound)
 999                 return -ENODEV;
1000
1001         id = of_get_property(sound, "layout-id", NULL);
1002         if (id) {
1003                 layout = find_layout_by_id(*id);
1004         } else {
1005                 id = of_get_property(sound, "device-id", NULL);
1006                 if (id)
1007                         layout = find_layout_by_device(*id);
1008         }
1009
1010         if (!layout) {
1011                 printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
1012                 goto outnodev;
1013         }
1014
1015         ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
1016         if (!ldev)
1017                 goto outnodev;
1018
1019         layout_device = ldev;
1020         ldev->sdev = sdev;
1021         ldev->sound = sound;
1022         ldev->layout = layout;
1023         ldev->gpio.node = sound->parent;
1024         switch (layout->layout_id) {
1025         case 0:  /* anything with device_id, not layout_id */
1026         case 41: /* that unknown machine no one seems to have */
1027         case 51: /* PowerBook5,4 */
1028         case 58: /* Mac Mini */
1029                 ldev->gpio.methods = ftr_gpio_methods;
1030                 printk(KERN_DEBUG
1031                        "snd-aoa-fabric-layout: Using direct GPIOs\n");
1032                 break;
1033         default:
1034                 ldev->gpio.methods = pmf_gpio_methods;
1035                 printk(KERN_DEBUG
1036                        "snd-aoa-fabric-layout: Using PMF GPIOs\n");
1037         }
1038         ldev->selfptr_headphone.ptr = ldev;
1039         ldev->selfptr_lineout.ptr = ldev;
1040         dev_set_drvdata(&sdev->ofdev.dev, ldev);
1041         list_add(&ldev->list, &layouts_list);
1042         layouts_list_items++;
1043
1044         /* assign these before registering ourselves, so
1045          * callbacks that are done during registration
1046          * already have the values */
1047         sdev->pcmid = ldev->layout->pcmid;
1048         if (ldev->layout->busname) {
1049                 sdev->pcmname = ldev->layout->busname;
1050         } else {
1051                 sdev->pcmname = "Master";
1052         }
1053
1054         ldev->gpio.methods->init(&ldev->gpio);
1055
1056         err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
1057         if (err && err != -EALREADY) {
1058                 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1059                                  " another fabric is active!\n");
1060                 goto outlistdel;
1061         }
1062
1063         use_layout(layout);
1064         ldev->switch_on_headphone = 1;
1065         ldev->switch_on_lineout = 1;
1066         return 0;
1067  outlistdel:
1068         /* we won't be using these then... */
1069         ldev->gpio.methods->exit(&ldev->gpio);
1070         /* reset if we didn't use it */
1071         sdev->pcmname = NULL;
1072         sdev->pcmid = -1;
1073         list_del(&ldev->list);
1074         layouts_list_items--;
1075  outnodev:
1076         of_node_put(sound);
1077         layout_device = NULL;
1078         kfree(ldev);
1079         return -ENODEV;
1080 }
1081
1082 static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1083 {
1084         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1085         int i;
1086
1087         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1088                 if (ldev->codecs[i]) {
1089                         aoa_fabric_unlink_codec(ldev->codecs[i]);
1090                 }
1091                 ldev->codecs[i] = NULL;
1092         }
1093         list_del(&ldev->list);
1094         layouts_list_items--;
1095         of_node_put(ldev->sound);
1096
1097         ldev->gpio.methods->set_notify(&ldev->gpio,
1098                                        AOA_NOTIFY_HEADPHONE,
1099                                        NULL,
1100                                        NULL);
1101         ldev->gpio.methods->set_notify(&ldev->gpio,
1102                                        AOA_NOTIFY_LINE_OUT,
1103                                        NULL,
1104                                        NULL);
1105
1106         ldev->gpio.methods->exit(&ldev->gpio);
1107         layout_device = NULL;
1108         kfree(ldev);
1109         sdev->pcmid = -1;
1110         sdev->pcmname = NULL;
1111         return 0;
1112 }
1113
1114 #ifdef CONFIG_PM
1115 static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1116 {
1117         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1118
1119         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1120                 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1121
1122         return 0;
1123 }
1124
1125 static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1126 {
1127         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1128
1129         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1130                 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1131
1132         return 0;
1133 }
1134 #endif
1135
1136 static struct soundbus_driver aoa_soundbus_driver = {
1137         .name = "snd_aoa_soundbus_drv",
1138         .owner = THIS_MODULE,
1139         .probe = aoa_fabric_layout_probe,
1140         .remove = aoa_fabric_layout_remove,
1141 #ifdef CONFIG_PM
1142         .suspend = aoa_fabric_layout_suspend,
1143         .resume = aoa_fabric_layout_resume,
1144 #endif
1145         .driver = {
1146                 .owner = THIS_MODULE,
1147         }
1148 };
1149
1150 static int __init aoa_fabric_layout_init(void)
1151 {
1152         int err;
1153
1154         err = soundbus_register_driver(&aoa_soundbus_driver);
1155         if (err)
1156                 return err;
1157         return 0;
1158 }
1159
1160 static void __exit aoa_fabric_layout_exit(void)
1161 {
1162         soundbus_unregister_driver(&aoa_soundbus_driver);
1163         aoa_fabric_unregister(&layout_fabric);
1164 }
1165
1166 module_init(aoa_fabric_layout_init);
1167 module_exit(aoa_fabric_layout_exit);