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 <linux/slab.h>
  16 #include "../aoa.h"
  17 #include "../soundbus/soundbus.h"
  18
  19 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
  20 MODULE_LICENSE("GPL");
  21 MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
  22
  23 #define MAX_CODECS_PER_BUS      2
  24
  25 /* These are the connections the layout fabric
  26  * knows about. It doesn't really care about the
  27  * input ones, but I thought I'd separate them
  28  * to give them proper names. The thing is that
  29  * Apple usually will distinguish the active output
  30  * by GPIOs, while the active input is set directly
  31  * on the codec. Hence we here tell the codec what
  32  * we think is connected. This information is hard-
  33  * coded below ... */
  34 #define CC_SPEAKERS     (1<<0)
  35 #define CC_HEADPHONE    (1<<1)
  36 #define CC_LINEOUT      (1<<2)
  37 #define CC_DIGITALOUT   (1<<3)
  38 #define CC_LINEIN       (1<<4)
  39 #define CC_MICROPHONE   (1<<5)
  40 #define CC_DIGITALIN    (1<<6)
  41 /* pretty bogus but users complain...
  42  * This is a flag saying that the LINEOUT
  43  * should be renamed to HEADPHONE.
  44  * be careful with input detection! */
  45 #define CC_LINEOUT_LABELLED_HEADPHONE   (1<<7)
  46
  47 struct codec_connection {
  48         /* CC_ flags from above */
  49         int connected;
  50         /* codec dependent bit to be set in the aoa_codec.connected field.
  51          * This intentionally doesn't have any generic flags because the
  52          * fabric has to know the codec anyway and all codecs might have
  53          * different connectors */
  54         int codec_bit;
  55 };
  56
  57 struct codec_connect_info {
  58         char *name;
  59         struct codec_connection *connections;
  60 };
  61
  62 #define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
  63
  64 struct layout {
  65         unsigned int layout_id, device_id;
  66         struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
  67         int flags;
  68
  69         /* if busname is not assigned, we use 'Master' below,
  70          * so that our layout table doesn't need to be filled
  71          * too much.
  72          * We only assign these two if we expect to find more
  73          * than one soundbus, i.e. on those machines with
  74          * multiple layout-ids */
  75         char *busname;
  76         int pcmid;
  77 };
  78
  79 MODULE_ALIAS("sound-layout-36");
  80 MODULE_ALIAS("sound-layout-41");
  81 MODULE_ALIAS("sound-layout-45");
  82 MODULE_ALIAS("sound-layout-47");
  83 MODULE_ALIAS("sound-layout-48");
  84 MODULE_ALIAS("sound-layout-49");
  85 MODULE_ALIAS("sound-layout-50");
  86 MODULE_ALIAS("sound-layout-51");
  87 MODULE_ALIAS("sound-layout-56");
  88 MODULE_ALIAS("sound-layout-57");
  89 MODULE_ALIAS("sound-layout-58");
  90 MODULE_ALIAS("sound-layout-60");
  91 MODULE_ALIAS("sound-layout-61");
  92 MODULE_ALIAS("sound-layout-62");
  93 MODULE_ALIAS("sound-layout-64");
  94 MODULE_ALIAS("sound-layout-65");
  95 MODULE_ALIAS("sound-layout-66");
  96 MODULE_ALIAS("sound-layout-67");
  97 MODULE_ALIAS("sound-layout-68");
  98 MODULE_ALIAS("sound-layout-69");
  99 MODULE_ALIAS("sound-layout-70");
 100 MODULE_ALIAS("sound-layout-72");
 101 MODULE_ALIAS("sound-layout-76");
 102 MODULE_ALIAS("sound-layout-80");
 103 MODULE_ALIAS("sound-layout-82");
 104 MODULE_ALIAS("sound-layout-84");
 105 MODULE_ALIAS("sound-layout-86");
 106 MODULE_ALIAS("sound-layout-90");
 107 MODULE_ALIAS("sound-layout-92");
 108 MODULE_ALIAS("sound-layout-94");
 109 MODULE_ALIAS("sound-layout-96");
 110 MODULE_ALIAS("sound-layout-98");
 111 MODULE_ALIAS("sound-layout-100");
 112
 113 MODULE_ALIAS("aoa-device-id-14");
 114 MODULE_ALIAS("aoa-device-id-22");
 115 MODULE_ALIAS("aoa-device-id-35");
 116
 117 /* onyx with all but microphone connected */
 118 static struct codec_connection onyx_connections_nomic[] = {
 119         {
 120                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 121                 .codec_bit = 0,
 122         },
 123         {
 124                 .connected = CC_DIGITALOUT,
 125                 .codec_bit = 1,
 126         },
 127         {
 128                 .connected = CC_LINEIN,
 129                 .codec_bit = 2,
 130         },
 131         {} /* terminate array by .connected == 0 */
 132 };
 133
 134 /* onyx on machines without headphone */
 135 static struct codec_connection onyx_connections_noheadphones[] = {
 136         {
 137                 .connected = CC_SPEAKERS | CC_LINEOUT |
 138                              CC_LINEOUT_LABELLED_HEADPHONE,
 139                 .codec_bit = 0,
 140         },
 141         {
 142                 .connected = CC_DIGITALOUT,
 143                 .codec_bit = 1,
 144         },
 145         /* FIXME: are these correct? probably not for all the machines
 146          * below ... If not this will need separating. */
 147         {
 148                 .connected = CC_LINEIN,
 149                 .codec_bit = 2,
 150         },
 151         {
 152                 .connected = CC_MICROPHONE,
 153                 .codec_bit = 3,
 154         },
 155         {} /* terminate array by .connected == 0 */
 156 };
 157
 158 /* onyx on machines with real line-out */
 159 static struct codec_connection onyx_connections_reallineout[] = {
 160         {
 161                 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
 162                 .codec_bit = 0,
 163         },
 164         {
 165                 .connected = CC_DIGITALOUT,
 166                 .codec_bit = 1,
 167         },
 168         {
 169                 .connected = CC_LINEIN,
 170                 .codec_bit = 2,
 171         },
 172         {} /* terminate array by .connected == 0 */
 173 };
 174
 175 /* tas on machines without line out */
 176 static struct codec_connection tas_connections_nolineout[] = {
 177         {
 178                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 179                 .codec_bit = 0,
 180         },
 181         {
 182                 .connected = CC_LINEIN,
 183                 .codec_bit = 2,
 184         },
 185         {
 186                 .connected = CC_MICROPHONE,
 187                 .codec_bit = 3,
 188         },
 189         {} /* terminate array by .connected == 0 */
 190 };
 191
 192 /* tas on machines with neither line out nor line in */
 193 static struct codec_connection tas_connections_noline[] = {
 194         {
 195                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 196                 .codec_bit = 0,
 197         },
 198         {
 199                 .connected = CC_MICROPHONE,
 200                 .codec_bit = 3,
 201         },
 202         {} /* terminate array by .connected == 0 */
 203 };
 204
 205 /* tas on machines without microphone */
 206 static struct codec_connection tas_connections_nomic[] = {
 207         {
 208                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 209                 .codec_bit = 0,
 210         },
 211         {
 212                 .connected = CC_LINEIN,
 213                 .codec_bit = 2,
 214         },
 215         {} /* terminate array by .connected == 0 */
 216 };
 217
 218 /* tas on machines with everything connected */
 219 static struct codec_connection tas_connections_all[] = {
 220         {
 221                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 222                 .codec_bit = 0,
 223         },
 224         {
 225                 .connected = CC_LINEIN,
 226                 .codec_bit = 2,
 227         },
 228         {
 229                 .connected = CC_MICROPHONE,
 230                 .codec_bit = 3,
 231         },
 232         {} /* terminate array by .connected == 0 */
 233 };
 234
 235 static struct codec_connection toonie_connections[] = {
 236         {
 237                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 238                 .codec_bit = 0,
 239         },
 240         {} /* terminate array by .connected == 0 */
 241 };
 242
 243 static struct codec_connection topaz_input[] = {
 244         {
 245                 .connected = CC_DIGITALIN,
 246                 .codec_bit = 0,
 247         },
 248         {} /* terminate array by .connected == 0 */
 249 };
 250
 251 static struct codec_connection topaz_output[] = {
 252         {
 253                 .connected = CC_DIGITALOUT,
 254                 .codec_bit = 1,
 255         },
 256         {} /* terminate array by .connected == 0 */
 257 };
 258
 259 static struct codec_connection topaz_inout[] = {
 260         {
 261                 .connected = CC_DIGITALIN,
 262                 .codec_bit = 0,
 263         },
 264         {
 265                 .connected = CC_DIGITALOUT,
 266                 .codec_bit = 1,
 267         },
 268         {} /* terminate array by .connected == 0 */
 269 };
 270
 271 static struct layout layouts[] = {
 272         /* last PowerBooks (15" Oct 2005) */
 273         { .layout_id = 82,
 274           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 275           .codecs[0] = {
 276                 .name = "onyx",
 277                 .connections = onyx_connections_noheadphones,
 278           },
 279           .codecs[1] = {
 280                 .name = "topaz",
 281                 .connections = topaz_input,
 282           },
 283         },
 284         /* PowerMac9,1 */
 285         { .layout_id = 60,
 286           .codecs[0] = {
 287                 .name = "onyx",
 288                 .connections = onyx_connections_reallineout,
 289           },
 290         },
 291         /* PowerMac9,1 */
 292         { .layout_id = 61,
 293           .codecs[0] = {
 294                 .name = "topaz",
 295                 .connections = topaz_input,
 296           },
 297         },
 298         /* PowerBook5,7 */
 299         { .layout_id = 64,
 300           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 301           .codecs[0] = {
 302                 .name = "onyx",
 303                 .connections = onyx_connections_noheadphones,
 304           },
 305         },
 306         /* PowerBook5,7 */
 307         { .layout_id = 65,
 308           .codecs[0] = {
 309                 .name = "topaz",
 310                 .connections = topaz_input,
 311           },
 312         },
 313         /* PowerBook5,9 [17" Oct 2005] */
 314         { .layout_id = 84,
 315           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 316           .codecs[0] = {
 317                 .name = "onyx",
 318                 .connections = onyx_connections_noheadphones,
 319           },
 320           .codecs[1] = {
 321                 .name = "topaz",
 322                 .connections = topaz_input,
 323           },
 324         },
 325         /* PowerMac8,1 */
 326         { .layout_id = 45,
 327           .codecs[0] = {
 328                 .name = "onyx",
 329                 .connections = onyx_connections_noheadphones,
 330           },
 331           .codecs[1] = {
 332                 .name = "topaz",
 333                 .connections = topaz_input,
 334           },
 335         },
 336         /* Quad PowerMac (analog in, analog/digital out) */
 337         { .layout_id = 68,
 338           .codecs[0] = {
 339                 .name = "onyx",
 340                 .connections = onyx_connections_nomic,
 341           },
 342         },
 343         /* Quad PowerMac (digital in) */
 344         { .layout_id = 69,
 345           .codecs[0] = {
 346                 .name = "topaz",
 347                 .connections = topaz_input,
 348           },
 349           .busname = "digital in", .pcmid = 1 },
 350         /* Early 2005 PowerBook (PowerBook 5,6) */
 351         { .layout_id = 70,
 352           .codecs[0] = {
 353                 .name = "tas",
 354                 .connections = tas_connections_nolineout,
 355           },
 356         },
 357         /* PowerBook 5,4 */
 358         { .layout_id = 51,
 359           .codecs[0] = {
 360                 .name = "tas",
 361                 .connections = tas_connections_nolineout,
 362           },
 363         },
 364         /* PowerBook6,7 */
 365         { .layout_id = 80,
 366           .codecs[0] = {
 367                 .name = "tas",
 368                 .connections = tas_connections_noline,
 369           },
 370         },
 371         /* PowerBook6,8 */
 372         { .layout_id = 72,
 373           .codecs[0] = {
 374                 .name = "tas",
 375                 .connections = tas_connections_nolineout,
 376           },
 377         },
 378         /* PowerMac8,2 */
 379         { .layout_id = 86,
 380           .codecs[0] = {
 381                 .name = "onyx",
 382                 .connections = onyx_connections_nomic,
 383           },
 384           .codecs[1] = {
 385                 .name = "topaz",
 386                 .connections = topaz_input,
 387           },
 388         },
 389         /* PowerBook6,7 */
 390         { .layout_id = 92,
 391           .codecs[0] = {
 392                 .name = "tas",
 393                 .connections = tas_connections_nolineout,
 394           },
 395         },
 396         /* PowerMac10,1 (Mac Mini) */
 397         { .layout_id = 58,
 398           .codecs[0] = {
 399                 .name = "toonie",
 400                 .connections = toonie_connections,
 401           },
 402         },
 403         {
 404           .layout_id = 96,
 405           .codecs[0] = {
 406                 .name = "onyx",
 407                 .connections = onyx_connections_noheadphones,
 408           },
 409         },
 410         /* unknown, untested, but this comes from Apple */
 411         { .layout_id = 41,
 412           .codecs[0] = {
 413                 .name = "tas",
 414                 .connections = tas_connections_all,
 415           },
 416         },
 417         { .layout_id = 36,
 418           .codecs[0] = {
 419                 .name = "tas",
 420                 .connections = tas_connections_nomic,
 421           },
 422           .codecs[1] = {
 423                 .name = "topaz",
 424                 .connections = topaz_inout,
 425           },
 426         },
 427         { .layout_id = 47,
 428           .codecs[0] = {
 429                 .name = "onyx",
 430                 .connections = onyx_connections_noheadphones,
 431           },
 432         },
 433         { .layout_id = 48,
 434           .codecs[0] = {
 435                 .name = "topaz",
 436                 .connections = topaz_input,
 437           },
 438         },
 439         { .layout_id = 49,
 440           .codecs[0] = {
 441                 .name = "onyx",
 442                 .connections = onyx_connections_nomic,
 443           },
 444         },
 445         { .layout_id = 50,
 446           .codecs[0] = {
 447                 .name = "topaz",
 448                 .connections = topaz_input,
 449           },
 450         },
 451         { .layout_id = 56,
 452           .codecs[0] = {
 453                 .name = "onyx",
 454                 .connections = onyx_connections_noheadphones,
 455           },
 456         },
 457         { .layout_id = 57,
 458           .codecs[0] = {
 459                 .name = "topaz",
 460                 .connections = topaz_input,
 461           },
 462         },
 463         { .layout_id = 62,
 464           .codecs[0] = {
 465                 .name = "onyx",
 466                 .connections = onyx_connections_noheadphones,
 467           },
 468           .codecs[1] = {
 469                 .name = "topaz",
 470                 .connections = topaz_output,
 471           },
 472         },
 473         { .layout_id = 66,
 474           .codecs[0] = {
 475                 .name = "onyx",
 476                 .connections = onyx_connections_noheadphones,
 477           },
 478         },
 479         { .layout_id = 67,
 480           .codecs[0] = {
 481                 .name = "topaz",
 482                 .connections = topaz_input,
 483           },
 484         },
 485         { .layout_id = 76,
 486           .codecs[0] = {
 487                 .name = "tas",
 488                 .connections = tas_connections_nomic,
 489           },
 490           .codecs[1] = {
 491                 .name = "topaz",
 492                 .connections = topaz_inout,
 493           },
 494         },
 495         { .layout_id = 90,
 496           .codecs[0] = {
 497                 .name = "tas",
 498                 .connections = tas_connections_noline,
 499           },
 500         },
 501         { .layout_id = 94,
 502           .codecs[0] = {
 503                 .name = "onyx",
 504                 /* but it has an external mic?? how to select? */
 505                 .connections = onyx_connections_noheadphones,
 506           },
 507         },
 508         { .layout_id = 98,
 509           .codecs[0] = {
 510                 .name = "toonie",
 511                 .connections = toonie_connections,
 512           },
 513         },
 514         { .layout_id = 100,
 515           .codecs[0] = {
 516                 .name = "topaz",
 517                 .connections = topaz_input,
 518           },
 519           .codecs[1] = {
 520                 .name = "onyx",
 521                 .connections = onyx_connections_noheadphones,
 522           },
 523         },
 524         /* PowerMac3,4 */
 525         { .device_id = 14,
 526           .codecs[0] = {
 527                 .name = "tas",
 528                 .connections = tas_connections_noline,
 529           },
 530         },
 531         /* PowerMac3,6 */
 532         { .device_id = 22,
 533           .codecs[0] = {
 534                 .name = "tas",
 535                 .connections = tas_connections_all,
 536           },
 537         },
 538         /* PowerBook5,2 */
 539         { .device_id = 35,
 540           .codecs[0] = {
 541                 .name = "tas",
 542                 .connections = tas_connections_all,
 543           },
 544         },
 545         {}
 546 };
 547
 548 static struct layout *find_layout_by_id(unsigned int id)
 549 {
 550         struct layout *l;
 551
 552         l = layouts;
 553         while (l->codecs[0].name) {
 554                 if (l->layout_id == id)
 555                         return l;
 556                 l++;
 557         }
 558         return NULL;
 559 }
 560
 561 static struct layout *find_layout_by_device(unsigned int id)
 562 {
 563         struct layout *l;
 564
 565         l = layouts;
 566         while (l->codecs[0].name) {
 567                 if (l->device_id == id)
 568                         return l;
 569                 l++;
 570         }
 571         return NULL;
 572 }
 573
 574 static void use_layout(struct layout *l)
 575 {
 576         int i;
 577
 578         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 579                 if (l->codecs[i].name) {
 580                         request_module("snd-aoa-codec-%s", l->codecs[i].name);
 581                 }
 582         }
 583         /* now we wait for the codecs to call us back */
 584 }
 585
 586 struct layout_dev;
 587
 588 struct layout_dev_ptr {
 589         struct layout_dev *ptr;
 590 };
 591
 592 struct layout_dev {
 593         struct list_head list;
 594         struct soundbus_dev *sdev;
 595         struct device_node *sound;
 596         struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
 597         struct layout *layout;
 598         struct gpio_runtime gpio;
 599
 600         /* we need these for headphone/lineout detection */
 601         struct snd_kcontrol *headphone_ctrl;
 602         struct snd_kcontrol *lineout_ctrl;
 603         struct snd_kcontrol *speaker_ctrl;
 604         struct snd_kcontrol *master_ctrl;
 605         struct snd_kcontrol *headphone_detected_ctrl;
 606         struct snd_kcontrol *lineout_detected_ctrl;
 607
 608         struct layout_dev_ptr selfptr_headphone;
 609         struct layout_dev_ptr selfptr_lineout;
 610
 611         u32 have_lineout_detect:1,
 612             have_headphone_detect:1,
 613             switch_on_headphone:1,
 614             switch_on_lineout:1;
 615 };
 616
 617 static LIST_HEAD(layouts_list);
 618 static int layouts_list_items;
 619 /* this can go away but only if we allow multiple cards,
 620  * make the fabric handle all the card stuff, etc... */
 621 static struct layout_dev *layout_device;
 622
 623 #define control_info    snd_ctl_boolean_mono_info
 624
 625 #define AMP_CONTROL(n, description)                                     \
 626 static int n##_control_get(struct snd_kcontrol *kcontrol,               \
 627                            struct snd_ctl_elem_value *ucontrol)         \
 628 {                                                                       \
 629         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 630         if (gpio->methods && gpio->methods->get_##n)                    \
 631                 ucontrol->value.integer.value[0] =                      \
 632                         gpio->methods->get_##n(gpio);                   \
 633         return 0;                                                       \
 634 }                                                                       \
 635 static int n##_control_put(struct snd_kcontrol *kcontrol,               \
 636                            struct snd_ctl_elem_value *ucontrol)         \
 637 {                                                                       \
 638         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 639         if (gpio->methods && gpio->methods->get_##n)                    \
 640                 gpio->methods->set_##n(gpio,                            \
 641                         !!ucontrol->value.integer.value[0]);            \
 642         return 1;                                                       \
 643 }                                                                       \
 644 static struct snd_kcontrol_new n##_ctl = {                              \
 645         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,                            \
 646         .name = description,                                            \
 647         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,                      \
 648         .info = control_info,                                           \
 649         .get = n##_control_get,                                         \
 650         .put = n##_control_put,                                         \
 651 }
 652
 653 AMP_CONTROL(headphone, "Headphone Switch");
 654 AMP_CONTROL(speakers, "Speakers Switch");
 655 AMP_CONTROL(lineout, "Line-Out Switch");
 656 AMP_CONTROL(master, "Master Switch");
 657
 658 static int detect_choice_get(struct snd_kcontrol *kcontrol,
 659                              struct snd_ctl_elem_value *ucontrol)
 660 {
 661         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 662
 663         switch (kcontrol->private_value) {
 664         case 0:
 665                 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
 666                 break;
 667         case 1:
 668                 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
 669                 break;
 670         default:
 671                 return -ENODEV;
 672         }
 673         return 0;
 674 }
 675
 676 static int detect_choice_put(struct snd_kcontrol *kcontrol,
 677                              struct snd_ctl_elem_value *ucontrol)
 678 {
 679         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 680
 681         switch (kcontrol->private_value) {
 682         case 0:
 683                 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
 684                 break;
 685         case 1:
 686                 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
 687                 break;
 688         default:
 689                 return -ENODEV;
 690         }
 691         return 1;
 692 }
 693
 694 static struct snd_kcontrol_new headphone_detect_choice = {
 695         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 696         .name = "Headphone Detect Autoswitch",
 697         .info = control_info,
 698         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 699         .get = detect_choice_get,
 700         .put = detect_choice_put,
 701         .private_value = 0,
 702 };
 703
 704 static struct snd_kcontrol_new lineout_detect_choice = {
 705         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 706         .name = "Line-Out Detect Autoswitch",
 707         .info = control_info,
 708         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 709         .get = detect_choice_get,
 710         .put = detect_choice_put,
 711         .private_value = 1,
 712 };
 713
 714 static int detected_get(struct snd_kcontrol *kcontrol,
 715                         struct snd_ctl_elem_value *ucontrol)
 716 {
 717         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 718         int v;
 719
 720         switch (kcontrol->private_value) {
 721         case 0:
 722                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 723                                                    AOA_NOTIFY_HEADPHONE);
 724                 break;
 725         case 1:
 726                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 727                                                    AOA_NOTIFY_LINE_OUT);
 728                 break;
 729         default:
 730                 return -ENODEV;
 731         }
 732         ucontrol->value.integer.value[0] = v;
 733         return 0;
 734 }
 735
 736 static struct snd_kcontrol_new headphone_detected = {
 737         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 738         .name = "Headphone Detected",
 739         .info = control_info,
 740         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 741         .get = detected_get,
 742         .private_value = 0,
 743 };
 744
 745 static struct snd_kcontrol_new lineout_detected = {
 746         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 747         .name = "Line-Out Detected",
 748         .info = control_info,
 749         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 750         .get = detected_get,
 751         .private_value = 1,
 752 };
 753
 754 static int check_codec(struct aoa_codec *codec,
 755                        struct layout_dev *ldev,
 756                        struct codec_connect_info *cci)
 757 {
 758         const u32 *ref;
 759         char propname[32];
 760         struct codec_connection *cc;
 761
 762         /* if the codec has a 'codec' node, we require a reference */
 763         if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 764                 snprintf(propname, sizeof(propname),
 765                          "platform-%s-codec-ref", codec->name);
 766                 ref = of_get_property(ldev->sound, propname, NULL);
 767                 if (!ref) {
 768                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 769                                 "required property %s not present\n", propname);
 770                         return -ENODEV;
 771                 }
 772                 if (*ref != codec->node->phandle) {
 773                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 774                                 "%s doesn't match!\n", propname);
 775                         return -ENODEV;
 776                 }
 777         } else {
 778                 if (layouts_list_items != 1) {
 779                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 780                                 "more than one soundbus, but no references.\n");
 781                         return -ENODEV;
 782                 }
 783         }
 784         codec->soundbus_dev = ldev->sdev;
 785         codec->gpio = &ldev->gpio;
 786
 787         cc = cci->connections;
 788         if (!cc)
 789                 return -EINVAL;
 790
 791         printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
 792
 793         codec->connected = 0;
 794         codec->fabric_data = cc;
 795
 796         while (cc->connected) {
 797                 codec->connected |= 1<<cc->codec_bit;
 798                 cc++;
 799         }
 800
 801         return 0;
 802 }
 803
 804 static int layout_found_codec(struct aoa_codec *codec)
 805 {
 806         struct layout_dev *ldev;
 807         int i;
 808
 809         list_for_each_entry(ldev, &layouts_list, list) {
 810                 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 811                         if (!ldev->layout->codecs[i].name)
 812                                 continue;
 813                         if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
 814                                 if (check_codec(codec,
 815                                                 ldev,
 816                                                 &ldev->layout->codecs[i]) == 0)
 817                                         return 0;
 818                         }
 819                 }
 820         }
 821         return -ENODEV;
 822 }
 823
 824 static void layout_remove_codec(struct aoa_codec *codec)
 825 {
 826         int i;
 827         /* here remove the codec from the layout dev's
 828          * codec reference */
 829
 830         codec->soundbus_dev = NULL;
 831         codec->gpio = NULL;
 832         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 833         }
 834 }
 835
 836 static void layout_notify(void *data)
 837 {
 838         struct layout_dev_ptr *dptr = data;
 839         struct layout_dev *ldev;
 840         int v, update;
 841         struct snd_kcontrol *detected, *c;
 842         struct snd_card *card = aoa_get_card();
 843
 844         ldev = dptr->ptr;
 845         if (data == &ldev->selfptr_headphone) {
 846                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
 847                 detected = ldev->headphone_detected_ctrl;
 848                 update = ldev->switch_on_headphone;
 849                 if (update) {
 850                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 851                         ldev->gpio.methods->set_headphone(&ldev->gpio, v);
 852                         ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
 853                 }
 854         } else if (data == &ldev->selfptr_lineout) {
 855                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
 856                 detected = ldev->lineout_detected_ctrl;
 857                 update = ldev->switch_on_lineout;
 858                 if (update) {
 859                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 860                         ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
 861                         ldev->gpio.methods->set_lineout(&ldev->gpio, v);
 862                 }
 863         } else
 864                 return;
 865
 866         if (detected)
 867                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
 868         if (update) {
 869                 c = ldev->headphone_ctrl;
 870                 if (c)
 871                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 872                 c = ldev->speaker_ctrl;
 873                 if (c)
 874                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 875                 c = ldev->lineout_ctrl;
 876                 if (c)
 877                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 878         }
 879 }
 880
 881 static void layout_attached_codec(struct aoa_codec *codec)
 882 {
 883         struct codec_connection *cc;
 884         struct snd_kcontrol *ctl;
 885         int headphones, lineout;
 886         struct layout_dev *ldev = layout_device;
 887
 888         /* need to add this codec to our codec array! */
 889
 890         cc = codec->fabric_data;
 891
 892         headphones = codec->gpio->methods->get_detect(codec->gpio,
 893                                                       AOA_NOTIFY_HEADPHONE);
 894         lineout = codec->gpio->methods->get_detect(codec->gpio,
 895                                                    AOA_NOTIFY_LINE_OUT);
 896
 897         if (codec->gpio->methods->set_master) {
 898                 ctl = snd_ctl_new1(&master_ctl, codec->gpio);
 899                 ldev->master_ctrl = ctl;
 900                 aoa_snd_ctl_add(ctl);
 901         }
 902         while (cc->connected) {
 903                 if (cc->connected & CC_SPEAKERS) {
 904                         if (headphones <= 0 && lineout <= 0)
 905                                 ldev->gpio.methods->set_speakers(codec->gpio, 1);
 906                         ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
 907                         ldev->speaker_ctrl = ctl;
 908                         aoa_snd_ctl_add(ctl);
 909                 }
 910                 if (cc->connected & CC_HEADPHONE) {
 911                         if (headphones == 1)
 912                                 ldev->gpio.methods->set_headphone(codec->gpio, 1);
 913                         ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
 914                         ldev->headphone_ctrl = ctl;
 915                         aoa_snd_ctl_add(ctl);
 916                         ldev->have_headphone_detect =
 917                                 !ldev->gpio.methods
 918                                         ->set_notify(&ldev->gpio,
 919                                                      AOA_NOTIFY_HEADPHONE,
 920                                                      layout_notify,
 921                                                      &ldev->selfptr_headphone);
 922                         if (ldev->have_headphone_detect) {
 923                                 ctl = snd_ctl_new1(&headphone_detect_choice,
 924                                                    ldev);
 925                                 aoa_snd_ctl_add(ctl);
 926                                 ctl = snd_ctl_new1(&headphone_detected,
 927                                                    ldev);
 928                                 ldev->headphone_detected_ctrl = ctl;
 929                                 aoa_snd_ctl_add(ctl);
 930                         }
 931                 }
 932                 if (cc->connected & CC_LINEOUT) {
 933                         if (lineout == 1)
 934                                 ldev->gpio.methods->set_lineout(codec->gpio, 1);
 935                         ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
 936                         if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 937                                 strlcpy(ctl->id.name,
 938                                         "Headphone Switch", sizeof(ctl->id.name));
 939                         ldev->lineout_ctrl = ctl;
 940                         aoa_snd_ctl_add(ctl);
 941                         ldev->have_lineout_detect =
 942                                 !ldev->gpio.methods
 943                                         ->set_notify(&ldev->gpio,
 944                                                      AOA_NOTIFY_LINE_OUT,
 945                                                      layout_notify,
 946                                                      &ldev->selfptr_lineout);
 947                         if (ldev->have_lineout_detect) {
 948                                 ctl = snd_ctl_new1(&lineout_detect_choice,
 949                                                    ldev);
 950                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 951                                         strlcpy(ctl->id.name,
 952                                                 "Headphone Detect Autoswitch",
 953                                                 sizeof(ctl->id.name));
 954                                 aoa_snd_ctl_add(ctl);
 955                                 ctl = snd_ctl_new1(&lineout_detected,
 956                                                    ldev);
 957                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 958                                         strlcpy(ctl->id.name,
 959                                                 "Headphone Detected",
 960                                                 sizeof(ctl->id.name));
 961                                 ldev->lineout_detected_ctrl = ctl;
 962                                 aoa_snd_ctl_add(ctl);
 963                         }
 964                 }
 965                 cc++;
 966         }
 967         /* now update initial state */
 968         if (ldev->have_headphone_detect)
 969                 layout_notify(&ldev->selfptr_headphone);
 970         if (ldev->have_lineout_detect)
 971                 layout_notify(&ldev->selfptr_lineout);
 972 }
 973
 974 static struct aoa_fabric layout_fabric = {
 975         .name = "SoundByLayout",
 976         .owner = THIS_MODULE,
 977         .found_codec = layout_found_codec,
 978         .remove_codec = layout_remove_codec,
 979         .attached_codec = layout_attached_codec,
 980 };
 981
 982 static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 983 {
 984         struct device_node *sound = NULL;
 985         const unsigned int *id;
 986         struct layout *layout = NULL;
 987         struct layout_dev *ldev = NULL;
 988         int err;
 989
 990         /* hm, currently we can only have one ... */
 991         if (layout_device)
 992                 return -ENODEV;
 993
 994         /* by breaking out we keep a reference */
 995         while ((sound = of_get_next_child(sdev->ofdev.dev.of_node, sound))) {
 996                 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
 997                         break;
 998         }
 999         if (!sound)
1000                 return -ENODEV;
1001
1002         id = of_get_property(sound, "layout-id", NULL);
1003         if (id) {
1004                 layout = find_layout_by_id(*id);
1005         } else {
1006                 id = of_get_property(sound, "device-id", NULL);
1007                 if (id)
1008                         layout = find_layout_by_device(*id);
1009         }
1010
1011         if (!layout) {
1012                 printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
1013                 goto outnodev;
1014         }
1015
1016         ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
1017         if (!ldev)
1018                 goto outnodev;
1019
1020         layout_device = ldev;
1021         ldev->sdev = sdev;
1022         ldev->sound = sound;
1023         ldev->layout = layout;
1024         ldev->gpio.node = sound->parent;
1025         switch (layout->layout_id) {
1026         case 0:  /* anything with device_id, not layout_id */
1027         case 41: /* that unknown machine no one seems to have */
1028         case 51: /* PowerBook5,4 */
1029         case 58: /* Mac Mini */
1030                 ldev->gpio.methods = ftr_gpio_methods;
1031                 printk(KERN_DEBUG
1032                        "snd-aoa-fabric-layout: Using direct GPIOs\n");
1033                 break;
1034         default:
1035                 ldev->gpio.methods = pmf_gpio_methods;
1036                 printk(KERN_DEBUG
1037                        "snd-aoa-fabric-layout: Using PMF GPIOs\n");
1038         }
1039         ldev->selfptr_headphone.ptr = ldev;
1040         ldev->selfptr_lineout.ptr = ldev;
1041         dev_set_drvdata(&sdev->ofdev.dev, ldev);
1042         list_add(&ldev->list, &layouts_list);
1043         layouts_list_items++;
1044
1045         /* assign these before registering ourselves, so
1046          * callbacks that are done during registration
1047          * already have the values */
1048         sdev->pcmid = ldev->layout->pcmid;
1049         if (ldev->layout->busname) {
1050                 sdev->pcmname = ldev->layout->busname;
1051         } else {
1052                 sdev->pcmname = "Master";
1053         }
1054
1055         ldev->gpio.methods->init(&ldev->gpio);
1056
1057         err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
1058         if (err && err != -EALREADY) {
1059                 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1060                                  " another fabric is active!\n");
1061                 goto outlistdel;
1062         }
1063
1064         use_layout(layout);
1065         ldev->switch_on_headphone = 1;
1066         ldev->switch_on_lineout = 1;
1067         return 0;
1068  outlistdel:
1069         /* we won't be using these then... */
1070         ldev->gpio.methods->exit(&ldev->gpio);
1071         /* reset if we didn't use it */
1072         sdev->pcmname = NULL;
1073         sdev->pcmid = -1;
1074         list_del(&ldev->list);
1075         layouts_list_items--;
1076         kfree(ldev);
1077  outnodev:
1078         of_node_put(sound);
1079         layout_device = NULL;
1080         return -ENODEV;
1081 }
1082
1083 static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1084 {
1085         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1086         int i;
1087
1088         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1089                 if (ldev->codecs[i]) {
1090                         aoa_fabric_unlink_codec(ldev->codecs[i]);
1091                 }
1092                 ldev->codecs[i] = NULL;
1093         }
1094         list_del(&ldev->list);
1095         layouts_list_items--;
1096         of_node_put(ldev->sound);
1097
1098         ldev->gpio.methods->set_notify(&ldev->gpio,
1099                                        AOA_NOTIFY_HEADPHONE,
1100                                        NULL,
1101                                        NULL);
1102         ldev->gpio.methods->set_notify(&ldev->gpio,
1103                                        AOA_NOTIFY_LINE_OUT,
1104                                        NULL,
1105                                        NULL);
1106
1107         ldev->gpio.methods->exit(&ldev->gpio);
1108         layout_device = NULL;
1109         kfree(ldev);
1110         sdev->pcmid = -1;
1111         sdev->pcmname = NULL;
1112         return 0;
1113 }
1114
1115 #ifdef CONFIG_PM
1116 static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1117 {
1118         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1119
1120         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1121                 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1122
1123         return 0;
1124 }
1125
1126 static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1127 {
1128         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1129
1130         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1131                 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1132
1133         return 0;
1134 }
1135 #endif
1136
1137 static struct soundbus_driver aoa_soundbus_driver = {
1138         .name = "snd_aoa_soundbus_drv",
1139         .owner = THIS_MODULE,
1140         .probe = aoa_fabric_layout_probe,
1141         .remove = aoa_fabric_layout_remove,
1142 #ifdef CONFIG_PM
1143         .suspend = aoa_fabric_layout_suspend,
1144         .resume = aoa_fabric_layout_resume,
1145 #endif
1146         .driver = {
1147                 .owner = THIS_MODULE,
1148         }
1149 };
1150
1151 static int __init aoa_fabric_layout_init(void)
1152 {
1153         int err;
1154
1155         err = soundbus_register_driver(&aoa_soundbus_driver);
1156         if (err)
1157                 return err;
1158         return 0;
1159 }
1160
1161 static void __exit aoa_fabric_layout_exit(void)
1162 {
1163         soundbus_unregister_driver(&aoa_soundbus_driver);
1164         aoa_fabric_unregister(&layout_fabric);
1165 }
1166
1167 module_init(aoa_fabric_layout_init);
1168 module_exit(aoa_fabric_layout_exit);