kernel/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 MODULE_ALIAS("aoa-device-id-44");
 117
 118 /* onyx with all but microphone connected */
 119 static struct codec_connection onyx_connections_nomic[] = {
 120         {
 121                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 122                 .codec_bit = 0,
 123         },
 124         {
 125                 .connected = CC_DIGITALOUT,
 126                 .codec_bit = 1,
 127         },
 128         {
 129                 .connected = CC_LINEIN,
 130                 .codec_bit = 2,
 131         },
 132         {} /* terminate array by .connected == 0 */
 133 };
 134
 135 /* onyx on machines without headphone */
 136 static struct codec_connection onyx_connections_noheadphones[] = {
 137         {
 138                 .connected = CC_SPEAKERS | CC_LINEOUT |
 139                              CC_LINEOUT_LABELLED_HEADPHONE,
 140                 .codec_bit = 0,
 141         },
 142         {
 143                 .connected = CC_DIGITALOUT,
 144                 .codec_bit = 1,
 145         },
 146         /* FIXME: are these correct? probably not for all the machines
 147          * below ... If not this will need separating. */
 148         {
 149                 .connected = CC_LINEIN,
 150                 .codec_bit = 2,
 151         },
 152         {
 153                 .connected = CC_MICROPHONE,
 154                 .codec_bit = 3,
 155         },
 156         {} /* terminate array by .connected == 0 */
 157 };
 158
 159 /* onyx on machines with real line-out */
 160 static struct codec_connection onyx_connections_reallineout[] = {
 161         {
 162                 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
 163                 .codec_bit = 0,
 164         },
 165         {
 166                 .connected = CC_DIGITALOUT,
 167                 .codec_bit = 1,
 168         },
 169         {
 170                 .connected = CC_LINEIN,
 171                 .codec_bit = 2,
 172         },
 173         {} /* terminate array by .connected == 0 */
 174 };
 175
 176 /* tas on machines without line out */
 177 static struct codec_connection tas_connections_nolineout[] = {
 178         {
 179                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 180                 .codec_bit = 0,
 181         },
 182         {
 183                 .connected = CC_LINEIN,
 184                 .codec_bit = 2,
 185         },
 186         {
 187                 .connected = CC_MICROPHONE,
 188                 .codec_bit = 3,
 189         },
 190         {} /* terminate array by .connected == 0 */
 191 };
 192
 193 /* tas on machines with neither line out nor line in */
 194 static struct codec_connection tas_connections_noline[] = {
 195         {
 196                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 197                 .codec_bit = 0,
 198         },
 199         {
 200                 .connected = CC_MICROPHONE,
 201                 .codec_bit = 3,
 202         },
 203         {} /* terminate array by .connected == 0 */
 204 };
 205
 206 /* tas on machines without microphone */
 207 static struct codec_connection tas_connections_nomic[] = {
 208         {
 209                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 210                 .codec_bit = 0,
 211         },
 212         {
 213                 .connected = CC_LINEIN,
 214                 .codec_bit = 2,
 215         },
 216         {} /* terminate array by .connected == 0 */
 217 };
 218
 219 /* tas on machines with everything connected */
 220 static struct codec_connection tas_connections_all[] = {
 221         {
 222                 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
 223                 .codec_bit = 0,
 224         },
 225         {
 226                 .connected = CC_LINEIN,
 227                 .codec_bit = 2,
 228         },
 229         {
 230                 .connected = CC_MICROPHONE,
 231                 .codec_bit = 3,
 232         },
 233         {} /* terminate array by .connected == 0 */
 234 };
 235
 236 static struct codec_connection toonie_connections[] = {
 237         {
 238                 .connected = CC_SPEAKERS | CC_HEADPHONE,
 239                 .codec_bit = 0,
 240         },
 241         {} /* terminate array by .connected == 0 */
 242 };
 243
 244 static struct codec_connection topaz_input[] = {
 245         {
 246                 .connected = CC_DIGITALIN,
 247                 .codec_bit = 0,
 248         },
 249         {} /* terminate array by .connected == 0 */
 250 };
 251
 252 static struct codec_connection topaz_output[] = {
 253         {
 254                 .connected = CC_DIGITALOUT,
 255                 .codec_bit = 1,
 256         },
 257         {} /* terminate array by .connected == 0 */
 258 };
 259
 260 static struct codec_connection topaz_inout[] = {
 261         {
 262                 .connected = CC_DIGITALIN,
 263                 .codec_bit = 0,
 264         },
 265         {
 266                 .connected = CC_DIGITALOUT,
 267                 .codec_bit = 1,
 268         },
 269         {} /* terminate array by .connected == 0 */
 270 };
 271
 272 static struct layout layouts[] = {
 273         /* last PowerBooks (15" Oct 2005) */
 274         { .layout_id = 82,
 275           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 276           .codecs[0] = {
 277                 .name = "onyx",
 278                 .connections = onyx_connections_noheadphones,
 279           },
 280           .codecs[1] = {
 281                 .name = "topaz",
 282                 .connections = topaz_input,
 283           },
 284         },
 285         /* PowerMac9,1 */
 286         { .layout_id = 60,
 287           .codecs[0] = {
 288                 .name = "onyx",
 289                 .connections = onyx_connections_reallineout,
 290           },
 291         },
 292         /* PowerMac9,1 */
 293         { .layout_id = 61,
 294           .codecs[0] = {
 295                 .name = "topaz",
 296                 .connections = topaz_input,
 297           },
 298         },
 299         /* PowerBook5,7 */
 300         { .layout_id = 64,
 301           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 302           .codecs[0] = {
 303                 .name = "onyx",
 304                 .connections = onyx_connections_noheadphones,
 305           },
 306         },
 307         /* PowerBook5,7 */
 308         { .layout_id = 65,
 309           .codecs[0] = {
 310                 .name = "topaz",
 311                 .connections = topaz_input,
 312           },
 313         },
 314         /* PowerBook5,9 [17" Oct 2005] */
 315         { .layout_id = 84,
 316           .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
 317           .codecs[0] = {
 318                 .name = "onyx",
 319                 .connections = onyx_connections_noheadphones,
 320           },
 321           .codecs[1] = {
 322                 .name = "topaz",
 323                 .connections = topaz_input,
 324           },
 325         },
 326         /* PowerMac8,1 */
 327         { .layout_id = 45,
 328           .codecs[0] = {
 329                 .name = "onyx",
 330                 .connections = onyx_connections_noheadphones,
 331           },
 332           .codecs[1] = {
 333                 .name = "topaz",
 334                 .connections = topaz_input,
 335           },
 336         },
 337         /* Quad PowerMac (analog in, analog/digital out) */
 338         { .layout_id = 68,
 339           .codecs[0] = {
 340                 .name = "onyx",
 341                 .connections = onyx_connections_nomic,
 342           },
 343         },
 344         /* Quad PowerMac (digital in) */
 345         { .layout_id = 69,
 346           .codecs[0] = {
 347                 .name = "topaz",
 348                 .connections = topaz_input,
 349           },
 350           .busname = "digital in", .pcmid = 1 },
 351         /* Early 2005 PowerBook (PowerBook 5,6) */
 352         { .layout_id = 70,
 353           .codecs[0] = {
 354                 .name = "tas",
 355                 .connections = tas_connections_nolineout,
 356           },
 357         },
 358         /* PowerBook 5,4 */
 359         { .layout_id = 51,
 360           .codecs[0] = {
 361                 .name = "tas",
 362                 .connections = tas_connections_nolineout,
 363           },
 364         },
 365         /* PowerBook6,5 */
 366         { .device_id = 44,
 367           .codecs[0] = {
 368                 .name = "tas",
 369                 .connections = tas_connections_all,
 370           },
 371         },
 372         /* PowerBook6,7 */
 373         { .layout_id = 80,
 374           .codecs[0] = {
 375                 .name = "tas",
 376                 .connections = tas_connections_noline,
 377           },
 378         },
 379         /* PowerBook6,8 */
 380         { .layout_id = 72,
 381           .codecs[0] = {
 382                 .name = "tas",
 383                 .connections = tas_connections_nolineout,
 384           },
 385         },
 386         /* PowerMac8,2 */
 387         { .layout_id = 86,
 388           .codecs[0] = {
 389                 .name = "onyx",
 390                 .connections = onyx_connections_nomic,
 391           },
 392           .codecs[1] = {
 393                 .name = "topaz",
 394                 .connections = topaz_input,
 395           },
 396         },
 397         /* PowerBook6,7 */
 398         { .layout_id = 92,
 399           .codecs[0] = {
 400                 .name = "tas",
 401                 .connections = tas_connections_nolineout,
 402           },
 403         },
 404         /* PowerMac10,1 (Mac Mini) */
 405         { .layout_id = 58,
 406           .codecs[0] = {
 407                 .name = "toonie",
 408                 .connections = toonie_connections,
 409           },
 410         },
 411         {
 412           .layout_id = 96,
 413           .codecs[0] = {
 414                 .name = "onyx",
 415                 .connections = onyx_connections_noheadphones,
 416           },
 417         },
 418         /* unknown, untested, but this comes from Apple */
 419         { .layout_id = 41,
 420           .codecs[0] = {
 421                 .name = "tas",
 422                 .connections = tas_connections_all,
 423           },
 424         },
 425         { .layout_id = 36,
 426           .codecs[0] = {
 427                 .name = "tas",
 428                 .connections = tas_connections_nomic,
 429           },
 430           .codecs[1] = {
 431                 .name = "topaz",
 432                 .connections = topaz_inout,
 433           },
 434         },
 435         { .layout_id = 47,
 436           .codecs[0] = {
 437                 .name = "onyx",
 438                 .connections = onyx_connections_noheadphones,
 439           },
 440         },
 441         { .layout_id = 48,
 442           .codecs[0] = {
 443                 .name = "topaz",
 444                 .connections = topaz_input,
 445           },
 446         },
 447         { .layout_id = 49,
 448           .codecs[0] = {
 449                 .name = "onyx",
 450                 .connections = onyx_connections_nomic,
 451           },
 452         },
 453         { .layout_id = 50,
 454           .codecs[0] = {
 455                 .name = "topaz",
 456                 .connections = topaz_input,
 457           },
 458         },
 459         { .layout_id = 56,
 460           .codecs[0] = {
 461                 .name = "onyx",
 462                 .connections = onyx_connections_noheadphones,
 463           },
 464         },
 465         { .layout_id = 57,
 466           .codecs[0] = {
 467                 .name = "topaz",
 468                 .connections = topaz_input,
 469           },
 470         },
 471         { .layout_id = 62,
 472           .codecs[0] = {
 473                 .name = "onyx",
 474                 .connections = onyx_connections_noheadphones,
 475           },
 476           .codecs[1] = {
 477                 .name = "topaz",
 478                 .connections = topaz_output,
 479           },
 480         },
 481         { .layout_id = 66,
 482           .codecs[0] = {
 483                 .name = "onyx",
 484                 .connections = onyx_connections_noheadphones,
 485           },
 486         },
 487         { .layout_id = 67,
 488           .codecs[0] = {
 489                 .name = "topaz",
 490                 .connections = topaz_input,
 491           },
 492         },
 493         { .layout_id = 76,
 494           .codecs[0] = {
 495                 .name = "tas",
 496                 .connections = tas_connections_nomic,
 497           },
 498           .codecs[1] = {
 499                 .name = "topaz",
 500                 .connections = topaz_inout,
 501           },
 502         },
 503         { .layout_id = 90,
 504           .codecs[0] = {
 505                 .name = "tas",
 506                 .connections = tas_connections_noline,
 507           },
 508         },
 509         { .layout_id = 94,
 510           .codecs[0] = {
 511                 .name = "onyx",
 512                 /* but it has an external mic?? how to select? */
 513                 .connections = onyx_connections_noheadphones,
 514           },
 515         },
 516         { .layout_id = 98,
 517           .codecs[0] = {
 518                 .name = "toonie",
 519                 .connections = toonie_connections,
 520           },
 521         },
 522         { .layout_id = 100,
 523           .codecs[0] = {
 524                 .name = "topaz",
 525                 .connections = topaz_input,
 526           },
 527           .codecs[1] = {
 528                 .name = "onyx",
 529                 .connections = onyx_connections_noheadphones,
 530           },
 531         },
 532         /* PowerMac3,4 */
 533         { .device_id = 14,
 534           .codecs[0] = {
 535                 .name = "tas",
 536                 .connections = tas_connections_noline,
 537           },
 538         },
 539         /* PowerMac3,6 */
 540         { .device_id = 22,
 541           .codecs[0] = {
 542                 .name = "tas",
 543                 .connections = tas_connections_all,
 544           },
 545         },
 546         /* PowerBook5,2 */
 547         { .device_id = 35,
 548           .codecs[0] = {
 549                 .name = "tas",
 550                 .connections = tas_connections_all,
 551           },
 552         },
 553         {}
 554 };
 555
 556 static struct layout *find_layout_by_id(unsigned int id)
 557 {
 558         struct layout *l;
 559
 560         l = layouts;
 561         while (l->codecs[0].name) {
 562                 if (l->layout_id == id)
 563                         return l;
 564                 l++;
 565         }
 566         return NULL;
 567 }
 568
 569 static struct layout *find_layout_by_device(unsigned int id)
 570 {
 571         struct layout *l;
 572
 573         l = layouts;
 574         while (l->codecs[0].name) {
 575                 if (l->device_id == id)
 576                         return l;
 577                 l++;
 578         }
 579         return NULL;
 580 }
 581
 582 static void use_layout(struct layout *l)
 583 {
 584         int i;
 585
 586         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 587                 if (l->codecs[i].name) {
 588                         request_module("snd-aoa-codec-%s", l->codecs[i].name);
 589                 }
 590         }
 591         /* now we wait for the codecs to call us back */
 592 }
 593
 594 struct layout_dev;
 595
 596 struct layout_dev_ptr {
 597         struct layout_dev *ptr;
 598 };
 599
 600 struct layout_dev {
 601         struct list_head list;
 602         struct soundbus_dev *sdev;
 603         struct device_node *sound;
 604         struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
 605         struct layout *layout;
 606         struct gpio_runtime gpio;
 607
 608         /* we need these for headphone/lineout detection */
 609         struct snd_kcontrol *headphone_ctrl;
 610         struct snd_kcontrol *lineout_ctrl;
 611         struct snd_kcontrol *speaker_ctrl;
 612         struct snd_kcontrol *master_ctrl;
 613         struct snd_kcontrol *headphone_detected_ctrl;
 614         struct snd_kcontrol *lineout_detected_ctrl;
 615
 616         struct layout_dev_ptr selfptr_headphone;
 617         struct layout_dev_ptr selfptr_lineout;
 618
 619         u32 have_lineout_detect:1,
 620             have_headphone_detect:1,
 621             switch_on_headphone:1,
 622             switch_on_lineout:1;
 623 };
 624
 625 static LIST_HEAD(layouts_list);
 626 static int layouts_list_items;
 627 /* this can go away but only if we allow multiple cards,
 628  * make the fabric handle all the card stuff, etc... */
 629 static struct layout_dev *layout_device;
 630
 631 #define control_info    snd_ctl_boolean_mono_info
 632
 633 #define AMP_CONTROL(n, description)                                     \
 634 static int n##_control_get(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                 ucontrol->value.integer.value[0] =                      \
 640                         gpio->methods->get_##n(gpio);                   \
 641         return 0;                                                       \
 642 }                                                                       \
 643 static int n##_control_put(struct snd_kcontrol *kcontrol,               \
 644                            struct snd_ctl_elem_value *ucontrol)         \
 645 {                                                                       \
 646         struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);        \
 647         if (gpio->methods && gpio->methods->set_##n)                    \
 648                 gpio->methods->set_##n(gpio,                            \
 649                         !!ucontrol->value.integer.value[0]);            \
 650         return 1;                                                       \
 651 }                                                                       \
 652 static struct snd_kcontrol_new n##_ctl = {                              \
 653         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,                            \
 654         .name = description,                                            \
 655         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,                      \
 656         .info = control_info,                                           \
 657         .get = n##_control_get,                                         \
 658         .put = n##_control_put,                                         \
 659 }
 660
 661 AMP_CONTROL(headphone, "Headphone Switch");
 662 AMP_CONTROL(speakers, "Speakers Switch");
 663 AMP_CONTROL(lineout, "Line-Out Switch");
 664 AMP_CONTROL(master, "Master Switch");
 665
 666 static int detect_choice_get(struct snd_kcontrol *kcontrol,
 667                              struct snd_ctl_elem_value *ucontrol)
 668 {
 669         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 670
 671         switch (kcontrol->private_value) {
 672         case 0:
 673                 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
 674                 break;
 675         case 1:
 676                 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
 677                 break;
 678         default:
 679                 return -ENODEV;
 680         }
 681         return 0;
 682 }
 683
 684 static int detect_choice_put(struct snd_kcontrol *kcontrol,
 685                              struct snd_ctl_elem_value *ucontrol)
 686 {
 687         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 688
 689         switch (kcontrol->private_value) {
 690         case 0:
 691                 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
 692                 break;
 693         case 1:
 694                 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
 695                 break;
 696         default:
 697                 return -ENODEV;
 698         }
 699         return 1;
 700 }
 701
 702 static struct snd_kcontrol_new headphone_detect_choice = {
 703         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 704         .name = "Headphone Detect Autoswitch",
 705         .info = control_info,
 706         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 707         .get = detect_choice_get,
 708         .put = detect_choice_put,
 709         .private_value = 0,
 710 };
 711
 712 static struct snd_kcontrol_new lineout_detect_choice = {
 713         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 714         .name = "Line-Out Detect Autoswitch",
 715         .info = control_info,
 716         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 717         .get = detect_choice_get,
 718         .put = detect_choice_put,
 719         .private_value = 1,
 720 };
 721
 722 static int detected_get(struct snd_kcontrol *kcontrol,
 723                         struct snd_ctl_elem_value *ucontrol)
 724 {
 725         struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
 726         int v;
 727
 728         switch (kcontrol->private_value) {
 729         case 0:
 730                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 731                                                    AOA_NOTIFY_HEADPHONE);
 732                 break;
 733         case 1:
 734                 v = ldev->gpio.methods->get_detect(&ldev->gpio,
 735                                                    AOA_NOTIFY_LINE_OUT);
 736                 break;
 737         default:
 738                 return -ENODEV;
 739         }
 740         ucontrol->value.integer.value[0] = v;
 741         return 0;
 742 }
 743
 744 static struct snd_kcontrol_new headphone_detected = {
 745         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 746         .name = "Headphone Detected",
 747         .info = control_info,
 748         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 749         .get = detected_get,
 750         .private_value = 0,
 751 };
 752
 753 static struct snd_kcontrol_new lineout_detected = {
 754         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 755         .name = "Line-Out Detected",
 756         .info = control_info,
 757         .access = SNDRV_CTL_ELEM_ACCESS_READ,
 758         .get = detected_get,
 759         .private_value = 1,
 760 };
 761
 762 static int check_codec(struct aoa_codec *codec,
 763                        struct layout_dev *ldev,
 764                        struct codec_connect_info *cci)
 765 {
 766         const u32 *ref;
 767         char propname[32];
 768         struct codec_connection *cc;
 769
 770         /* if the codec has a 'codec' node, we require a reference */
 771         if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 772                 snprintf(propname, sizeof(propname),
 773                          "platform-%s-codec-ref", codec->name);
 774                 ref = of_get_property(ldev->sound, propname, NULL);
 775                 if (!ref) {
 776                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 777                                 "required property %s not present\n", propname);
 778                         return -ENODEV;
 779                 }
 780                 if (*ref != codec->node->phandle) {
 781                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 782                                 "%s doesn't match!\n", propname);
 783                         return -ENODEV;
 784                 }
 785         } else {
 786                 if (layouts_list_items != 1) {
 787                         printk(KERN_INFO "snd-aoa-fabric-layout: "
 788                                 "more than one soundbus, but no references.\n");
 789                         return -ENODEV;
 790                 }
 791         }
 792         codec->soundbus_dev = ldev->sdev;
 793         codec->gpio = &ldev->gpio;
 794
 795         cc = cci->connections;
 796         if (!cc)
 797                 return -EINVAL;
 798
 799         printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
 800
 801         codec->connected = 0;
 802         codec->fabric_data = cc;
 803
 804         while (cc->connected) {
 805                 codec->connected |= 1<<cc->codec_bit;
 806                 cc++;
 807         }
 808
 809         return 0;
 810 }
 811
 812 static int layout_found_codec(struct aoa_codec *codec)
 813 {
 814         struct layout_dev *ldev;
 815         int i;
 816
 817         list_for_each_entry(ldev, &layouts_list, list) {
 818                 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 819                         if (!ldev->layout->codecs[i].name)
 820                                 continue;
 821                         if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
 822                                 if (check_codec(codec,
 823                                                 ldev,
 824                                                 &ldev->layout->codecs[i]) == 0)
 825                                         return 0;
 826                         }
 827                 }
 828         }
 829         return -ENODEV;
 830 }
 831
 832 static void layout_remove_codec(struct aoa_codec *codec)
 833 {
 834         int i;
 835         /* here remove the codec from the layout dev's
 836          * codec reference */
 837
 838         codec->soundbus_dev = NULL;
 839         codec->gpio = NULL;
 840         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
 841         }
 842 }
 843
 844 static void layout_notify(void *data)
 845 {
 846         struct layout_dev_ptr *dptr = data;
 847         struct layout_dev *ldev;
 848         int v, update;
 849         struct snd_kcontrol *detected, *c;
 850         struct snd_card *card = aoa_get_card();
 851
 852         ldev = dptr->ptr;
 853         if (data == &ldev->selfptr_headphone) {
 854                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
 855                 detected = ldev->headphone_detected_ctrl;
 856                 update = ldev->switch_on_headphone;
 857                 if (update) {
 858                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 859                         ldev->gpio.methods->set_headphone(&ldev->gpio, v);
 860                         ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
 861                 }
 862         } else if (data == &ldev->selfptr_lineout) {
 863                 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
 864                 detected = ldev->lineout_detected_ctrl;
 865                 update = ldev->switch_on_lineout;
 866                 if (update) {
 867                         ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
 868                         ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
 869                         ldev->gpio.methods->set_lineout(&ldev->gpio, v);
 870                 }
 871         } else
 872                 return;
 873
 874         if (detected)
 875                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
 876         if (update) {
 877                 c = ldev->headphone_ctrl;
 878                 if (c)
 879                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 880                 c = ldev->speaker_ctrl;
 881                 if (c)
 882                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 883                 c = ldev->lineout_ctrl;
 884                 if (c)
 885                         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
 886         }
 887 }
 888
 889 static void layout_attached_codec(struct aoa_codec *codec)
 890 {
 891         struct codec_connection *cc;
 892         struct snd_kcontrol *ctl;
 893         int headphones, lineout;
 894         struct layout_dev *ldev = layout_device;
 895
 896         /* need to add this codec to our codec array! */
 897
 898         cc = codec->fabric_data;
 899
 900         headphones = codec->gpio->methods->get_detect(codec->gpio,
 901                                                       AOA_NOTIFY_HEADPHONE);
 902         lineout = codec->gpio->methods->get_detect(codec->gpio,
 903                                                    AOA_NOTIFY_LINE_OUT);
 904
 905         if (codec->gpio->methods->set_master) {
 906                 ctl = snd_ctl_new1(&master_ctl, codec->gpio);
 907                 ldev->master_ctrl = ctl;
 908                 aoa_snd_ctl_add(ctl);
 909         }
 910         while (cc->connected) {
 911                 if (cc->connected & CC_SPEAKERS) {
 912                         if (headphones <= 0 && lineout <= 0)
 913                                 ldev->gpio.methods->set_speakers(codec->gpio, 1);
 914                         ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
 915                         ldev->speaker_ctrl = ctl;
 916                         aoa_snd_ctl_add(ctl);
 917                 }
 918                 if (cc->connected & CC_HEADPHONE) {
 919                         if (headphones == 1)
 920                                 ldev->gpio.methods->set_headphone(codec->gpio, 1);
 921                         ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
 922                         ldev->headphone_ctrl = ctl;
 923                         aoa_snd_ctl_add(ctl);
 924                         ldev->have_headphone_detect =
 925                                 !ldev->gpio.methods
 926                                         ->set_notify(&ldev->gpio,
 927                                                      AOA_NOTIFY_HEADPHONE,
 928                                                      layout_notify,
 929                                                      &ldev->selfptr_headphone);
 930                         if (ldev->have_headphone_detect) {
 931                                 ctl = snd_ctl_new1(&headphone_detect_choice,
 932                                                    ldev);
 933                                 aoa_snd_ctl_add(ctl);
 934                                 ctl = snd_ctl_new1(&headphone_detected,
 935                                                    ldev);
 936                                 ldev->headphone_detected_ctrl = ctl;
 937                                 aoa_snd_ctl_add(ctl);
 938                         }
 939                 }
 940                 if (cc->connected & CC_LINEOUT) {
 941                         if (lineout == 1)
 942                                 ldev->gpio.methods->set_lineout(codec->gpio, 1);
 943                         ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
 944                         if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 945                                 strlcpy(ctl->id.name,
 946                                         "Headphone Switch", sizeof(ctl->id.name));
 947                         ldev->lineout_ctrl = ctl;
 948                         aoa_snd_ctl_add(ctl);
 949                         ldev->have_lineout_detect =
 950                                 !ldev->gpio.methods
 951                                         ->set_notify(&ldev->gpio,
 952                                                      AOA_NOTIFY_LINE_OUT,
 953                                                      layout_notify,
 954                                                      &ldev->selfptr_lineout);
 955                         if (ldev->have_lineout_detect) {
 956                                 ctl = snd_ctl_new1(&lineout_detect_choice,
 957                                                    ldev);
 958                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 959                                         strlcpy(ctl->id.name,
 960                                                 "Headphone Detect Autoswitch",
 961                                                 sizeof(ctl->id.name));
 962                                 aoa_snd_ctl_add(ctl);
 963                                 ctl = snd_ctl_new1(&lineout_detected,
 964                                                    ldev);
 965                                 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
 966                                         strlcpy(ctl->id.name,
 967                                                 "Headphone Detected",
 968                                                 sizeof(ctl->id.name));
 969                                 ldev->lineout_detected_ctrl = ctl;
 970                                 aoa_snd_ctl_add(ctl);
 971                         }
 972                 }
 973                 cc++;
 974         }
 975         /* now update initial state */
 976         if (ldev->have_headphone_detect)
 977                 layout_notify(&ldev->selfptr_headphone);
 978         if (ldev->have_lineout_detect)
 979                 layout_notify(&ldev->selfptr_lineout);
 980 }
 981
 982 static struct aoa_fabric layout_fabric = {
 983         .name = "SoundByLayout",
 984         .owner = THIS_MODULE,
 985         .found_codec = layout_found_codec,
 986         .remove_codec = layout_remove_codec,
 987         .attached_codec = layout_attached_codec,
 988 };
 989
 990 static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 991 {
 992         struct device_node *sound = NULL;
 993         const unsigned int *id;
 994         struct layout *layout = NULL;
 995         struct layout_dev *ldev = NULL;
 996         int err;
 997
 998         /* hm, currently we can only have one ... */
 999         if (layout_device)
1000                 return -ENODEV;
1001
1002         /* by breaking out we keep a reference */
1003         while ((sound = of_get_next_child(sdev->ofdev.dev.of_node, sound))) {
1004                 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
1005                         break;
1006         }
1007         if (!sound)
1008                 return -ENODEV;
1009
1010         id = of_get_property(sound, "layout-id", NULL);
1011         if (id) {
1012                 layout = find_layout_by_id(*id);
1013         } else {
1014                 id = of_get_property(sound, "device-id", NULL);
1015                 if (id)
1016                         layout = find_layout_by_device(*id);
1017         }
1018
1019         if (!layout) {
1020                 printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
1021                 goto outnodev;
1022         }
1023
1024         ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
1025         if (!ldev)
1026                 goto outnodev;
1027
1028         layout_device = ldev;
1029         ldev->sdev = sdev;
1030         ldev->sound = sound;
1031         ldev->layout = layout;
1032         ldev->gpio.node = sound->parent;
1033         switch (layout->layout_id) {
1034         case 0:  /* anything with device_id, not layout_id */
1035         case 41: /* that unknown machine no one seems to have */
1036         case 51: /* PowerBook5,4 */
1037         case 58: /* Mac Mini */
1038                 ldev->gpio.methods = ftr_gpio_methods;
1039                 printk(KERN_DEBUG
1040                        "snd-aoa-fabric-layout: Using direct GPIOs\n");
1041                 break;
1042         default:
1043                 ldev->gpio.methods = pmf_gpio_methods;
1044                 printk(KERN_DEBUG
1045                        "snd-aoa-fabric-layout: Using PMF GPIOs\n");
1046         }
1047         ldev->selfptr_headphone.ptr = ldev;
1048         ldev->selfptr_lineout.ptr = ldev;
1049         dev_set_drvdata(&sdev->ofdev.dev, ldev);
1050         list_add(&ldev->list, &layouts_list);
1051         layouts_list_items++;
1052
1053         /* assign these before registering ourselves, so
1054          * callbacks that are done during registration
1055          * already have the values */
1056         sdev->pcmid = ldev->layout->pcmid;
1057         if (ldev->layout->busname) {
1058                 sdev->pcmname = ldev->layout->busname;
1059         } else {
1060                 sdev->pcmname = "Master";
1061         }
1062
1063         ldev->gpio.methods->init(&ldev->gpio);
1064
1065         err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
1066         if (err && err != -EALREADY) {
1067                 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1068                                  " another fabric is active!\n");
1069                 goto outlistdel;
1070         }
1071
1072         use_layout(layout);
1073         ldev->switch_on_headphone = 1;
1074         ldev->switch_on_lineout = 1;
1075         return 0;
1076  outlistdel:
1077         /* we won't be using these then... */
1078         ldev->gpio.methods->exit(&ldev->gpio);
1079         /* reset if we didn't use it */
1080         sdev->pcmname = NULL;
1081         sdev->pcmid = -1;
1082         list_del(&ldev->list);
1083         layouts_list_items--;
1084         kfree(ldev);
1085  outnodev:
1086         of_node_put(sound);
1087         layout_device = NULL;
1088         return -ENODEV;
1089 }
1090
1091 static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1092 {
1093         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1094         int i;
1095
1096         for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1097                 if (ldev->codecs[i]) {
1098                         aoa_fabric_unlink_codec(ldev->codecs[i]);
1099                 }
1100                 ldev->codecs[i] = NULL;
1101         }
1102         list_del(&ldev->list);
1103         layouts_list_items--;
1104         of_node_put(ldev->sound);
1105
1106         ldev->gpio.methods->set_notify(&ldev->gpio,
1107                                        AOA_NOTIFY_HEADPHONE,
1108                                        NULL,
1109                                        NULL);
1110         ldev->gpio.methods->set_notify(&ldev->gpio,
1111                                        AOA_NOTIFY_LINE_OUT,
1112                                        NULL,
1113                                        NULL);
1114
1115         ldev->gpio.methods->exit(&ldev->gpio);
1116         layout_device = NULL;
1117         kfree(ldev);
1118         sdev->pcmid = -1;
1119         sdev->pcmname = NULL;
1120         return 0;
1121 }
1122
1123 #ifdef CONFIG_PM
1124 static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1125 {
1126         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1127
1128         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1129                 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1130
1131         return 0;
1132 }
1133
1134 static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1135 {
1136         struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1137
1138         if (ldev->gpio.methods && ldev->gpio.methods->all_amps_restore)
1139                 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1140
1141         return 0;
1142 }
1143 #endif
1144
1145 static struct soundbus_driver aoa_soundbus_driver = {
1146         .name = "snd_aoa_soundbus_drv",
1147         .owner = THIS_MODULE,
1148         .probe = aoa_fabric_layout_probe,
1149         .remove = aoa_fabric_layout_remove,
1150 #ifdef CONFIG_PM
1151         .suspend = aoa_fabric_layout_suspend,
1152         .resume = aoa_fabric_layout_resume,
1153 #endif
1154         .driver = {
1155                 .owner = THIS_MODULE,
1156         }
1157 };
1158
1159 static int __init aoa_fabric_layout_init(void)
1160 {
1161         int err;
1162
1163         err = soundbus_register_driver(&aoa_soundbus_driver);
1164         if (err)
1165                 return err;
1166         return 0;
1167 }
1168
1169 static void __exit aoa_fabric_layout_exit(void)
1170 {
1171         soundbus_unregister_driver(&aoa_soundbus_driver);
1172         aoa_fabric_unregister(&layout_fabric);
1173 }
1174
1175 module_init(aoa_fabric_layout_init);
1176 module_exit(aoa_fabric_layout_exit);