LXR linux/sound/usb/caiaq/input.c

   1/*
   2 *   Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
   3 *
   4 *   This program is free software; you can redistribute it and/or modify
   5 *   it under the terms of the GNU General Public License as published by
   6 *   the Free Software Foundation; either version 2 of the License, or
   7 *   (at your option) any later version.
   8 *
   9 *   This program is distributed in the hope that it will be useful,
  10 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 *   GNU General Public License for more details.
  13 *
  14 *   You should have received a copy of the GNU General Public License
  15 *   along with this program; if not, write to the Free Software
  16 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17*/
  18
  19#include <linux/device.h>
  20#include <linux/gfp.h>
  21#include <linux/init.h>
  22#include <linux/usb.h>
  23#include <linux/usb/input.h>
  24#include <sound/core.h>
  25#include <sound/pcm.h>
  26
  27#include "device.h"
  28#include "input.h"
  29
  30static unsigned short keycode_ak1[] =  { KEY_C, KEY_B, KEY_A };
  31static unsigned short keycode_rk2[] =  { KEY_1, KEY_2, KEY_3, KEY_4,
  32                                         KEY_5, KEY_6, KEY_7 };
  33static unsigned short keycode_rk3[] =  { KEY_1, KEY_2, KEY_3, KEY_4,
  34                                         KEY_5, KEY_6, KEY_7, KEY_8, KEY_9 };
  35
  36static unsigned short keycode_kore[] = {
  37        KEY_FN_F1,      /* "menu"               */
  38        KEY_FN_F7,      /* "lcd backlight       */
  39        KEY_FN_F2,      /* "control"            */
  40        KEY_FN_F3,      /* "enter"              */
  41        KEY_FN_F4,      /* "view"               */
  42        KEY_FN_F5,      /* "esc"                */
  43        KEY_FN_F6,      /* "sound"              */
  44        KEY_FN_F8,      /* array spacer, never triggered. */
  45        KEY_RIGHT,
  46        KEY_DOWN,
  47        KEY_UP,
  48        KEY_LEFT,
  49        KEY_SOUND,      /* "listen"             */
  50        KEY_RECORD,
  51        KEY_PLAYPAUSE,
  52        KEY_STOP,
  53        BTN_4,          /* 8 softkeys */
  54        BTN_3,
  55        BTN_2,
  56        BTN_1,
  57        BTN_8,
  58        BTN_7,
  59        BTN_6,
  60        BTN_5,
  61        KEY_BRL_DOT4,   /* touch sensitive knobs */
  62        KEY_BRL_DOT3,
  63        KEY_BRL_DOT2,
  64        KEY_BRL_DOT1,
  65        KEY_BRL_DOT8,
  66        KEY_BRL_DOT7,
  67        KEY_BRL_DOT6,
  68        KEY_BRL_DOT5
  69};
  70
  71#define MASCHINE_BUTTONS   (42)
  72#define MASCHINE_BUTTON(X) ((X) + BTN_MISC)
  73#define MASCHINE_PADS      (16)
  74#define MASCHINE_PAD(X)    ((X) + ABS_PRESSURE)
  75
  76static unsigned short keycode_maschine[] = {
  77        MASCHINE_BUTTON(40), /* mute       */
  78        MASCHINE_BUTTON(39), /* solo       */
  79        MASCHINE_BUTTON(38), /* select     */
  80        MASCHINE_BUTTON(37), /* duplicate  */
  81        MASCHINE_BUTTON(36), /* navigate   */
  82        MASCHINE_BUTTON(35), /* pad mode   */
  83        MASCHINE_BUTTON(34), /* pattern    */
  84        MASCHINE_BUTTON(33), /* scene      */
  85        KEY_RESERVED, /* spacer */
  86
  87        MASCHINE_BUTTON(30), /* rec        */
  88        MASCHINE_BUTTON(31), /* erase      */
  89        MASCHINE_BUTTON(32), /* shift      */
  90        MASCHINE_BUTTON(28), /* grid       */
  91        MASCHINE_BUTTON(27), /* >          */
  92        MASCHINE_BUTTON(26), /* <          */
  93        MASCHINE_BUTTON(25), /* restart    */
  94
  95        MASCHINE_BUTTON(21), /* E          */
  96        MASCHINE_BUTTON(22), /* F          */
  97        MASCHINE_BUTTON(23), /* G          */
  98        MASCHINE_BUTTON(24), /* H          */
  99        MASCHINE_BUTTON(20), /* D          */
 100        MASCHINE_BUTTON(19), /* C          */
 101        MASCHINE_BUTTON(18), /* B          */
 102        MASCHINE_BUTTON(17), /* A          */
 103
 104        MASCHINE_BUTTON(0),  /* control    */
 105        MASCHINE_BUTTON(2),  /* browse     */
 106        MASCHINE_BUTTON(4),  /* <          */
 107        MASCHINE_BUTTON(6),  /* snap       */
 108        MASCHINE_BUTTON(7),  /* autowrite  */
 109        MASCHINE_BUTTON(5),  /* >          */
 110        MASCHINE_BUTTON(3),  /* sampling   */
 111        MASCHINE_BUTTON(1),  /* step       */
 112
 113        MASCHINE_BUTTON(15), /* 8 softkeys */
 114        MASCHINE_BUTTON(14),
 115        MASCHINE_BUTTON(13),
 116        MASCHINE_BUTTON(12),
 117        MASCHINE_BUTTON(11),
 118        MASCHINE_BUTTON(10),
 119        MASCHINE_BUTTON(9),
 120        MASCHINE_BUTTON(8),
 121
 122        MASCHINE_BUTTON(16), /* note repeat */
 123        MASCHINE_BUTTON(29)  /* play        */
 124};
 125
 126#define KONTROLX1_INPUTS        (40)
 127#define KONTROLS4_BUTTONS       (12 * 8)
 128#define KONTROLS4_AXIS          (46)
 129
 130#define KONTROLS4_BUTTON(X)     ((X) + BTN_MISC)
 131#define KONTROLS4_ABS(X)        ((X) + ABS_HAT0X)
 132
 133#define DEG90           (range / 2)
 134#define DEG180          (range)
 135#define DEG270          (DEG90 + DEG180)
 136#define DEG360          (DEG180 * 2)
 137#define HIGH_PEAK       (268)
 138#define LOW_PEAK        (-7)
 139
 140/* some of these devices have endless rotation potentiometers
 141 * built in which use two tapers, 90 degrees phase shifted.
 142 * this algorithm decodes them to one single value, ranging
 143 * from 0 to 999 */
 144static unsigned int decode_erp(unsigned char a, unsigned char b)
 145{
 146        int weight_a, weight_b;
 147        int pos_a, pos_b;
 148        int ret;
 149        int range = HIGH_PEAK - LOW_PEAK;
 150        int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
 151
 152        weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
 153
 154        if (weight_b < 0)
 155                weight_b = 0;
 156
 157        if (weight_b > 100)
 158                weight_b = 100;
 159
 160        weight_a = 100 - weight_b;
 161
 162        if (a < mid_value) {
 163                /* 0..90 and 270..360 degrees */
 164                pos_b = b - LOW_PEAK + DEG270;
 165                if (pos_b >= DEG360)
 166                        pos_b -= DEG360;
 167        } else
 168                /* 90..270 degrees */
 169                pos_b = HIGH_PEAK - b + DEG90;
 170
 171
 172        if (b > mid_value)
 173                /* 0..180 degrees */
 174                pos_a = a - LOW_PEAK;
 175        else
 176                /* 180..360 degrees */
 177                pos_a = HIGH_PEAK - a + DEG180;
 178
 179        /* interpolate both slider values, depending on weight factors */
 180        /* 0..99 x DEG360 */
 181        ret = pos_a * weight_a + pos_b * weight_b;
 182
 183        /* normalize to 0..999 */
 184        ret *= 10;
 185        ret /= DEG360;
 186
 187        if (ret < 0)
 188                ret += 1000;
 189
 190        if (ret >= 1000)
 191                ret -= 1000;
 192
 193        return ret;
 194}
 195
 196#undef DEG90
 197#undef DEG180
 198#undef DEG270
 199#undef DEG360
 200#undef HIGH_PEAK
 201#undef LOW_PEAK
 202
 203static inline void snd_caiaq_input_report_abs(struct snd_usb_caiaqdev *cdev,
 204                                              int axis, const unsigned char *buf,
 205                                              int offset)
 206{
 207        input_report_abs(cdev->input_dev, axis,
 208                         (buf[offset * 2] << 8) | buf[offset * 2 + 1]);
 209}
 210
 211static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *cdev,
 212                                        const unsigned char *buf,
 213                                        unsigned int len)
 214{
 215        struct input_dev *input_dev = cdev->input_dev;
 216
 217        switch (cdev->chip.usb_id) {
 218        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
 219                snd_caiaq_input_report_abs(cdev, ABS_X, buf, 2);
 220                snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 0);
 221                snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 1);
 222                break;
 223        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
 224        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
 225        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
 226                snd_caiaq_input_report_abs(cdev, ABS_X, buf, 0);
 227                snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 1);
 228                snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 2);
 229                break;
 230        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 231                snd_caiaq_input_report_abs(cdev, ABS_HAT0X, buf, 4);
 232                snd_caiaq_input_report_abs(cdev, ABS_HAT0Y, buf, 2);
 233                snd_caiaq_input_report_abs(cdev, ABS_HAT1X, buf, 6);
 234                snd_caiaq_input_report_abs(cdev, ABS_HAT1Y, buf, 1);
 235                snd_caiaq_input_report_abs(cdev, ABS_HAT2X, buf, 7);
 236                snd_caiaq_input_report_abs(cdev, ABS_HAT2Y, buf, 0);
 237                snd_caiaq_input_report_abs(cdev, ABS_HAT3X, buf, 5);
 238                snd_caiaq_input_report_abs(cdev, ABS_HAT3Y, buf, 3);
 239                break;
 240        }
 241
 242        input_sync(input_dev);
 243}
 244
 245static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *cdev,
 246                                     const char *buf, unsigned int len)
 247{
 248        struct input_dev *input_dev = cdev->input_dev;
 249        int i;
 250
 251        switch (cdev->chip.usb_id) {
 252        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
 253                i = decode_erp(buf[0], buf[1]);
 254                input_report_abs(input_dev, ABS_X, i);
 255                input_sync(input_dev);
 256                break;
 257        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
 258        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
 259                i = decode_erp(buf[7], buf[5]);
 260                input_report_abs(input_dev, ABS_HAT0X, i);
 261                i = decode_erp(buf[12], buf[14]);
 262                input_report_abs(input_dev, ABS_HAT0Y, i);
 263                i = decode_erp(buf[15], buf[13]);
 264                input_report_abs(input_dev, ABS_HAT1X, i);
 265                i = decode_erp(buf[0], buf[2]);
 266                input_report_abs(input_dev, ABS_HAT1Y, i);
 267                i = decode_erp(buf[3], buf[1]);
 268                input_report_abs(input_dev, ABS_HAT2X, i);
 269                i = decode_erp(buf[8], buf[10]);
 270                input_report_abs(input_dev, ABS_HAT2Y, i);
 271                i = decode_erp(buf[11], buf[9]);
 272                input_report_abs(input_dev, ABS_HAT3X, i);
 273                i = decode_erp(buf[4], buf[6]);
 274                input_report_abs(input_dev, ABS_HAT3Y, i);
 275                input_sync(input_dev);
 276                break;
 277
 278        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
 279                /* 4 under the left screen */
 280                input_report_abs(input_dev, ABS_HAT0X, decode_erp(buf[21], buf[20]));
 281                input_report_abs(input_dev, ABS_HAT0Y, decode_erp(buf[15], buf[14]));
 282                input_report_abs(input_dev, ABS_HAT1X, decode_erp(buf[9],  buf[8]));
 283                input_report_abs(input_dev, ABS_HAT1Y, decode_erp(buf[3],  buf[2]));
 284
 285                /* 4 under the right screen */
 286                input_report_abs(input_dev, ABS_HAT2X, decode_erp(buf[19], buf[18]));
 287                input_report_abs(input_dev, ABS_HAT2Y, decode_erp(buf[13], buf[12]));
 288                input_report_abs(input_dev, ABS_HAT3X, decode_erp(buf[7],  buf[6]));
 289                input_report_abs(input_dev, ABS_HAT3Y, decode_erp(buf[1],  buf[0]));
 290
 291                /* volume */
 292                input_report_abs(input_dev, ABS_RX, decode_erp(buf[17], buf[16]));
 293                /* tempo */
 294                input_report_abs(input_dev, ABS_RY, decode_erp(buf[11], buf[10]));
 295                /* swing */
 296                input_report_abs(input_dev, ABS_RZ, decode_erp(buf[5],  buf[4]));
 297
 298                input_sync(input_dev);
 299                break;
 300        }
 301}
 302
 303static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *cdev,
 304                                    unsigned char *buf, unsigned int len)
 305{
 306        struct input_dev *input_dev = cdev->input_dev;
 307        unsigned short *keycode = input_dev->keycode;
 308        int i;
 309
 310        if (!keycode)
 311                return;
 312
 313        if (input_dev->id.product == USB_PID_RIGKONTROL2)
 314                for (i = 0; i < len; i++)
 315                        buf[i] = ~buf[i];
 316
 317        for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
 318                input_report_key(input_dev, keycode[i],
 319                                 buf[i / 8] & (1 << (i % 8)));
 320
 321        switch (cdev->chip.usb_id) {
 322        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
 323        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
 324                input_report_abs(cdev->input_dev, ABS_MISC, 255 - buf[4]);
 325                break;
 326        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 327                /* rotary encoders */
 328                input_report_abs(cdev->input_dev, ABS_X, buf[5] & 0xf);
 329                input_report_abs(cdev->input_dev, ABS_Y, buf[5] >> 4);
 330                input_report_abs(cdev->input_dev, ABS_Z, buf[6] & 0xf);
 331                input_report_abs(cdev->input_dev, ABS_MISC, buf[6] >> 4);
 332                break;
 333        }
 334
 335        input_sync(input_dev);
 336}
 337
 338#define TKS4_MSGBLOCK_SIZE      16
 339
 340static void snd_usb_caiaq_tks4_dispatch(struct snd_usb_caiaqdev *cdev,
 341                                        const unsigned char *buf,
 342                                        unsigned int len)
 343{
 344        struct device *dev = caiaqdev_to_dev(cdev);
 345
 346        while (len) {
 347                unsigned int i, block_id = (buf[0] << 8) | buf[1];
 348
 349                switch (block_id) {
 350                case 0:
 351                        /* buttons */
 352                        for (i = 0; i < KONTROLS4_BUTTONS; i++)
 353                                input_report_key(cdev->input_dev, KONTROLS4_BUTTON(i),
 354                                                 (buf[4 + (i / 8)] >> (i % 8)) & 1);
 355                        break;
 356
 357                case 1:
 358                        /* left wheel */
 359                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(36), buf[9] | ((buf[8] & 0x3) << 8));
 360                        /* right wheel */
 361                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(37), buf[13] | ((buf[12] & 0x3) << 8));
 362
 363                        /* rotary encoders */
 364                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(38), buf[3] & 0xf);
 365                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(39), buf[4] >> 4);
 366                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(40), buf[4] & 0xf);
 367                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(41), buf[5] >> 4);
 368                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(42), buf[5] & 0xf);
 369                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(43), buf[6] >> 4);
 370                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(44), buf[6] & 0xf);
 371                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(45), buf[7] >> 4);
 372                        input_report_abs(cdev->input_dev, KONTROLS4_ABS(46), buf[7] & 0xf);
 373
 374                        break;
 375                case 2:
 376                        /* Volume Fader Channel D */
 377                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(0), buf, 1);
 378                        /* Volume Fader Channel B */
 379                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(1), buf, 2);
 380                        /* Volume Fader Channel A */
 381                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(2), buf, 3);
 382                        /* Volume Fader Channel C */
 383                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(3), buf, 4);
 384                        /* Loop Volume */
 385                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(4), buf, 6);
 386                        /* Crossfader */
 387                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(7), buf, 7);
 388
 389                        break;
 390
 391                case 3:
 392                        /* Tempo Fader R */
 393                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(6), buf, 3);
 394                        /* Tempo Fader L */
 395                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(5), buf, 4);
 396                        /* Mic Volume */
 397                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(8), buf, 6);
 398                        /* Cue Mix */
 399                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(9), buf, 7);
 400
 401                        break;
 402
 403                case 4:
 404                        /* Wheel distance sensor L */
 405                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(10), buf, 1);
 406                        /* Wheel distance sensor R */
 407                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(11), buf, 2);
 408                        /* Channel D EQ - Filter */
 409                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(12), buf, 3);
 410                        /* Channel D EQ - Low */
 411                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(13), buf, 4);
 412                        /* Channel D EQ - Mid */
 413                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(14), buf, 5);
 414                        /* Channel D EQ - Hi */
 415                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(15), buf, 6);
 416                        /* FX2 - dry/wet */
 417                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(16), buf, 7);
 418
 419                        break;
 420
 421                case 5:
 422                        /* FX2 - 1 */
 423                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(17), buf, 1);
 424                        /* FX2 - 2 */
 425                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(18), buf, 2);
 426                        /* FX2 - 3 */
 427                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(19), buf, 3);
 428                        /* Channel B EQ - Filter */
 429                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(20), buf, 4);
 430                        /* Channel B EQ - Low */
 431                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(21), buf, 5);
 432                        /* Channel B EQ - Mid */
 433                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(22), buf, 6);
 434                        /* Channel B EQ - Hi */
 435                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(23), buf, 7);
 436
 437                        break;
 438
 439                case 6:
 440                        /* Channel A EQ - Filter */
 441                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(24), buf, 1);
 442                        /* Channel A EQ - Low */
 443                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(25), buf, 2);
 444                        /* Channel A EQ - Mid */
 445                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(26), buf, 3);
 446                        /* Channel A EQ - Hi */
 447                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(27), buf, 4);
 448                        /* Channel C EQ - Filter */
 449                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(28), buf, 5);
 450                        /* Channel C EQ - Low */
 451                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(29), buf, 6);
 452                        /* Channel C EQ - Mid */
 453                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(30), buf, 7);
 454
 455                        break;
 456
 457                case 7:
 458                        /* Channel C EQ - Hi */
 459                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(31), buf, 1);
 460                        /* FX1 - wet/dry */
 461                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(32), buf, 2);
 462                        /* FX1 - 1 */
 463                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(33), buf, 3);
 464                        /* FX1 - 2 */
 465                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(34), buf, 4);
 466                        /* FX1 - 3 */
 467                        snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(35), buf, 5);
 468
 469                        break;
 470
 471                default:
 472                        dev_dbg(dev, "%s(): bogus block (id %d)\n",
 473                                __func__, block_id);
 474                        return;
 475                }
 476
 477                len -= TKS4_MSGBLOCK_SIZE;
 478                buf += TKS4_MSGBLOCK_SIZE;
 479        }
 480
 481        input_sync(cdev->input_dev);
 482}
 483
 484#define MASCHINE_MSGBLOCK_SIZE 2
 485
 486static void snd_usb_caiaq_maschine_dispatch(struct snd_usb_caiaqdev *cdev,
 487                                        const unsigned char *buf,
 488                                        unsigned int len)
 489{
 490        unsigned int i, pad_id;
 491        __le16 *pressure = (__le16 *) buf;
 492
 493        for (i = 0; i < MASCHINE_PADS; i++) {
 494                pad_id = le16_to_cpu(*pressure) >> 12;
 495                input_report_abs(cdev->input_dev, MASCHINE_PAD(pad_id),
 496                                 le16_to_cpu(*pressure) & 0xfff);
 497                pressure++;
 498        }
 499
 500        input_sync(cdev->input_dev);
 501}
 502
 503static void snd_usb_caiaq_ep4_reply_dispatch(struct urb *urb)
 504{
 505        struct snd_usb_caiaqdev *cdev = urb->context;
 506        unsigned char *buf = urb->transfer_buffer;
 507        struct device *dev = &urb->dev->dev;
 508        int ret;
 509
 510        if (urb->status || !cdev || urb != cdev->ep4_in_urb)
 511                return;
 512
 513        switch (cdev->chip.usb_id) {
 514        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 515                if (urb->actual_length < 24)
 516                        goto requeue;
 517
 518                if (buf[0] & 0x3)
 519                        snd_caiaq_input_read_io(cdev, buf + 1, 7);
 520
 521                if (buf[0] & 0x4)
 522                        snd_caiaq_input_read_analog(cdev, buf + 8, 16);
 523
 524                break;
 525
 526        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
 527                snd_usb_caiaq_tks4_dispatch(cdev, buf, urb->actual_length);
 528                break;
 529
 530        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
 531                if (urb->actual_length < (MASCHINE_PADS * MASCHINE_MSGBLOCK_SIZE))
 532                        goto requeue;
 533
 534                snd_usb_caiaq_maschine_dispatch(cdev, buf, urb->actual_length);
 535                break;
 536        }
 537
 538requeue:
 539        cdev->ep4_in_urb->actual_length = 0;
 540        ret = usb_submit_urb(cdev->ep4_in_urb, GFP_ATOMIC);
 541        if (ret < 0)
 542                dev_err(dev, "unable to submit urb. OOM!?\n");
 543}
 544
 545static int snd_usb_caiaq_input_open(struct input_dev *idev)
 546{
 547        struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev);
 548
 549        if (!cdev)
 550                return -EINVAL;
 551
 552        switch (cdev->chip.usb_id) {
 553        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 554        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
 555        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
 556                if (usb_submit_urb(cdev->ep4_in_urb, GFP_KERNEL) != 0)
 557                        return -EIO;
 558                break;
 559        }
 560
 561        return 0;
 562}
 563
 564static void snd_usb_caiaq_input_close(struct input_dev *idev)
 565{
 566        struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev);
 567
 568        if (!cdev)
 569                return;
 570
 571        switch (cdev->chip.usb_id) {
 572        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 573        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
 574        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
 575                usb_kill_urb(cdev->ep4_in_urb);
 576                break;
 577        }
 578}
 579
 580void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *cdev,
 581                                  char *buf,
 582                                  unsigned int len)
 583{
 584        if (!cdev->input_dev || len < 1)
 585                return;
 586
 587        switch (buf[0]) {
 588        case EP1_CMD_READ_ANALOG:
 589                snd_caiaq_input_read_analog(cdev, buf + 1, len - 1);
 590                break;
 591        case EP1_CMD_READ_ERP:
 592                snd_caiaq_input_read_erp(cdev, buf + 1, len - 1);
 593                break;
 594        case EP1_CMD_READ_IO:
 595                snd_caiaq_input_read_io(cdev, buf + 1, len - 1);
 596                break;
 597        }
 598}
 599
 600int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev)
 601{
 602        struct usb_device *usb_dev = cdev->chip.dev;
 603        struct input_dev *input;
 604        int i, ret = 0;
 605
 606        input = input_allocate_device();
 607        if (!input)
 608                return -ENOMEM;
 609
 610        usb_make_path(usb_dev, cdev->phys, sizeof(cdev->phys));
 611        strlcat(cdev->phys, "/input0", sizeof(cdev->phys));
 612
 613        input->name = cdev->product_name;
 614        input->phys = cdev->phys;
 615        usb_to_input_id(usb_dev, &input->id);
 616        input->dev.parent = &usb_dev->dev;
 617
 618        input_set_drvdata(input, cdev);
 619
 620        switch (cdev->chip.usb_id) {
 621        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
 622                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 623                input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
 624                        BIT_MASK(ABS_Z);
 625                BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk2));
 626                memcpy(cdev->keycode, keycode_rk2, sizeof(keycode_rk2));
 627                input->keycodemax = ARRAY_SIZE(keycode_rk2);
 628                input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
 629                input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
 630                input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
 631                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0);
 632                break;
 633        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
 634                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 635                input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
 636                        BIT_MASK(ABS_Z);
 637                BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk3));
 638                memcpy(cdev->keycode, keycode_rk3, sizeof(keycode_rk3));
 639                input->keycodemax = ARRAY_SIZE(keycode_rk3);
 640                input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
 641                input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
 642                input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
 643                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0);
 644                break;
 645        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
 646                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 647                input->absbit[0] = BIT_MASK(ABS_X);
 648                BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_ak1));
 649                memcpy(cdev->keycode, keycode_ak1, sizeof(keycode_ak1));
 650                input->keycodemax = ARRAY_SIZE(keycode_ak1);
 651                input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
 652                snd_usb_caiaq_set_auto_msg(cdev, 1, 0, 5);
 653                break;
 654        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
 655        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
 656                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 657                input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
 658                                   BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
 659                                   BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
 660                                   BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
 661                                   BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
 662                                   BIT_MASK(ABS_Z);
 663                input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
 664                BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_kore));
 665                memcpy(cdev->keycode, keycode_kore, sizeof(keycode_kore));
 666                input->keycodemax = ARRAY_SIZE(keycode_kore);
 667                input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
 668                input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
 669                input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
 670                input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
 671                input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
 672                input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
 673                input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
 674                input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
 675                input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
 676                input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
 677                input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
 678                input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
 679                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
 680                break;
 681        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
 682                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 683                input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
 684                                   BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
 685                                   BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
 686                                   BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
 687                                   BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
 688                                   BIT_MASK(ABS_Z);
 689                input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
 690                BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLX1_INPUTS);
 691                for (i = 0; i < KONTROLX1_INPUTS; i++)
 692                        cdev->keycode[i] = BTN_MISC + i;
 693                input->keycodemax = KONTROLX1_INPUTS;
 694
 695                /* analog potentiometers */
 696                input_set_abs_params(input, ABS_HAT0X, 0, 4096, 0, 10);
 697                input_set_abs_params(input, ABS_HAT0Y, 0, 4096, 0, 10);
 698                input_set_abs_params(input, ABS_HAT1X, 0, 4096, 0, 10);
 699                input_set_abs_params(input, ABS_HAT1Y, 0, 4096, 0, 10);
 700                input_set_abs_params(input, ABS_HAT2X, 0, 4096, 0, 10);
 701                input_set_abs_params(input, ABS_HAT2Y, 0, 4096, 0, 10);
 702                input_set_abs_params(input, ABS_HAT3X, 0, 4096, 0, 10);
 703                input_set_abs_params(input, ABS_HAT3Y, 0, 4096, 0, 10);
 704
 705                /* rotary encoders */
 706                input_set_abs_params(input, ABS_X, 0, 0xf, 0, 1);
 707                input_set_abs_params(input, ABS_Y, 0, 0xf, 0, 1);
 708                input_set_abs_params(input, ABS_Z, 0, 0xf, 0, 1);
 709                input_set_abs_params(input, ABS_MISC, 0, 0xf, 0, 1);
 710
 711                cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
 712                if (!cdev->ep4_in_urb) {
 713                        ret = -ENOMEM;
 714                        goto exit_free_idev;
 715                }
 716
 717                usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
 718                                  usb_rcvbulkpipe(usb_dev, 0x4),
 719                                  cdev->ep4_in_buf, EP4_BUFSIZE,
 720                                  snd_usb_caiaq_ep4_reply_dispatch, cdev);
 721
 722                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
 723
 724                break;
 725
 726        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
 727                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 728                BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLS4_BUTTONS);
 729                for (i = 0; i < KONTROLS4_BUTTONS; i++)
 730                        cdev->keycode[i] = KONTROLS4_BUTTON(i);
 731                input->keycodemax = KONTROLS4_BUTTONS;
 732
 733                for (i = 0; i < KONTROLS4_AXIS; i++) {
 734                        int axis = KONTROLS4_ABS(i);
 735                        input->absbit[BIT_WORD(axis)] |= BIT_MASK(axis);
 736                }
 737
 738                /* 36 analog potentiometers and faders */
 739                for (i = 0; i < 36; i++)
 740                        input_set_abs_params(input, KONTROLS4_ABS(i), 0, 0xfff, 0, 10);
 741
 742                /* 2 encoder wheels */
 743                input_set_abs_params(input, KONTROLS4_ABS(36), 0, 0x3ff, 0, 1);
 744                input_set_abs_params(input, KONTROLS4_ABS(37), 0, 0x3ff, 0, 1);
 745
 746                /* 9 rotary encoders */
 747                for (i = 0; i < 9; i++)
 748                        input_set_abs_params(input, KONTROLS4_ABS(38+i), 0, 0xf, 0, 1);
 749
 750                cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
 751                if (!cdev->ep4_in_urb) {
 752                        ret = -ENOMEM;
 753                        goto exit_free_idev;
 754                }
 755
 756                usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
 757                                  usb_rcvbulkpipe(usb_dev, 0x4),
 758                                  cdev->ep4_in_buf, EP4_BUFSIZE,
 759                                  snd_usb_caiaq_ep4_reply_dispatch, cdev);
 760
 761                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
 762
 763                break;
 764
 765        case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
 766                input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 767                input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
 768                        BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
 769                        BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
 770                        BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
 771                        BIT_MASK(ABS_RX) | BIT_MASK(ABS_RY) |
 772                        BIT_MASK(ABS_RZ);
 773
 774                BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_maschine));
 775                memcpy(cdev->keycode, keycode_maschine, sizeof(keycode_maschine));
 776                input->keycodemax = ARRAY_SIZE(keycode_maschine);
 777
 778                for (i = 0; i < MASCHINE_PADS; i++) {
 779                        input->absbit[0] |= MASCHINE_PAD(i);
 780                        input_set_abs_params(input, MASCHINE_PAD(i), 0, 0xfff, 5, 10);
 781                }
 782
 783                input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
 784                input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
 785                input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
 786                input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
 787                input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
 788                input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
 789                input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
 790                input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
 791                input_set_abs_params(input, ABS_RX, 0, 999, 0, 10);
 792                input_set_abs_params(input, ABS_RY, 0, 999, 0, 10);
 793                input_set_abs_params(input, ABS_RZ, 0, 999, 0, 10);
 794
 795                cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
 796                if (!cdev->ep4_in_urb) {
 797                        ret = -ENOMEM;
 798                        goto exit_free_idev;
 799                }
 800
 801                usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
 802                                  usb_rcvbulkpipe(usb_dev, 0x4),
 803                                  cdev->ep4_in_buf, EP4_BUFSIZE,
 804                                  snd_usb_caiaq_ep4_reply_dispatch, cdev);
 805
 806                snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
 807                break;
 808
 809        default:
 810                /* no input methods supported on this device */
 811                goto exit_free_idev;
 812        }
 813
 814        input->open = snd_usb_caiaq_input_open;
 815        input->close = snd_usb_caiaq_input_close;
 816        input->keycode = cdev->keycode;
 817        input->keycodesize = sizeof(unsigned short);
 818        for (i = 0; i < input->keycodemax; i++)
 819                __set_bit(cdev->keycode[i], input->keybit);
 820
 821        cdev->input_dev = input;
 822
 823        ret = input_register_device(input);
 824        if (ret < 0)
 825                goto exit_free_idev;
 826
 827        return 0;
 828
 829exit_free_idev:
 830        input_free_device(input);
 831        cdev->input_dev = NULL;
 832        return ret;
 833}
 834
 835void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *cdev)
 836{
 837        if (!cdev || !cdev->input_dev)
 838                return;
 839
 840        usb_kill_urb(cdev->ep4_in_urb);
 841        usb_free_urb(cdev->ep4_in_urb);
 842        cdev->ep4_in_urb = NULL;
 843
 844        input_unregister_device(cdev->input_dev);
 845        cdev->input_dev = NULL;
 846}
 847