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   1 /*
   2  * caiaq.c: ALSA driver for caiaq/NativeInstruments devices
   3  *
   4  *   Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
   5  *                      Karsten Wiese <fzu@wemgehoertderstaat.de>
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20 */
  21
  22 #include <linux/moduleparam.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/module.h>
  25 #include <linux/init.h>
  26 #include <linux/gfp.h>
  27 #include <linux/usb.h>
  28 #include <sound/initval.h>
  29 #include <sound/core.h>
  30 #include <sound/pcm.h>
  31
  32 #include "device.h"
  33 #include "audio.h"
  34 #include "midi.h"
  35 #include "control.h"
  36 #include "input.h"
  37
  38 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
  39 MODULE_DESCRIPTION("caiaq USB audio, version 1.3.20");
  40 MODULE_LICENSE("GPL");
  41 MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
  42                          "{Native Instruments, RigKontrol3},"
  43                          "{Native Instruments, Kore Controller},"
  44                          "{Native Instruments, Kore Controller 2},"
  45                          "{Native Instruments, Audio Kontrol 1},"
  46                          "{Native Instruments, Audio 2 DJ},"
  47                          "{Native Instruments, Audio 4 DJ},"
  48                          "{Native Instruments, Audio 8 DJ},"
  49                          "{Native Instruments, Session I/O},"
  50                          "{Native Instruments, GuitarRig mobile}"
  51                          "{Native Instruments, Traktor Kontrol X1}");
  52
  53 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
  54 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
  55 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
  56 static int snd_card_used[SNDRV_CARDS];
  57
  58 module_param_array(index, int, NULL, 0444);
  59 MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
  60 module_param_array(id, charp, NULL, 0444);
  61 MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
  62 module_param_array(enable, bool, NULL, 0444);
  63 MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
  64
  65 enum {
  66         SAMPLERATE_44100        = 0,
  67         SAMPLERATE_48000        = 1,
  68         SAMPLERATE_96000        = 2,
  69         SAMPLERATE_192000       = 3,
  70         SAMPLERATE_88200        = 4,
  71         SAMPLERATE_INVALID      = 0xff
  72 };
  73
  74 enum {
  75         DEPTH_NONE      = 0,
  76         DEPTH_16        = 1,
  77         DEPTH_24        = 2,
  78         DEPTH_32        = 3
  79 };
  80
  81 static struct usb_device_id snd_usb_id_table[] = {
  82         {
  83                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  84                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  85                 .idProduct =    USB_PID_RIGKONTROL2
  86         },
  87         {
  88                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  89                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  90                 .idProduct =    USB_PID_RIGKONTROL3
  91         },
  92         {
  93                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  94                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  95                 .idProduct =    USB_PID_KORECONTROLLER
  96         },
  97         {
  98                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  99                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 100                 .idProduct =    USB_PID_KORECONTROLLER2
 101         },
 102         {
 103                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 104                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 105                 .idProduct =    USB_PID_AK1
 106         },
 107         {
 108                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 109                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 110                 .idProduct =    USB_PID_AUDIO8DJ
 111         },
 112         {
 113                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 114                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 115                 .idProduct =    USB_PID_SESSIONIO
 116         },
 117         {
 118                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 119                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 120                 .idProduct =    USB_PID_GUITARRIGMOBILE
 121         },
 122         {
 123                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 124                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 125                 .idProduct =    USB_PID_AUDIO4DJ
 126         },
 127         {
 128                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 129                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 130                 .idProduct =    USB_PID_AUDIO2DJ
 131         },
 132         {
 133                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 134                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 135                 .idProduct =    USB_PID_TRAKTORKONTROLX1
 136         },
 137         { /* terminator */ }
 138 };
 139
 140 static void usb_ep1_command_reply_dispatch (struct urb* urb)
 141 {
 142         int ret;
 143         struct snd_usb_caiaqdev *dev = urb->context;
 144         unsigned char *buf = urb->transfer_buffer;
 145
 146         if (urb->status || !dev) {
 147                 log("received EP1 urb->status = %i\n", urb->status);
 148                 return;
 149         }
 150
 151         switch(buf[0]) {
 152         case EP1_CMD_GET_DEVICE_INFO:
 153                 memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
 154                 dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
 155                 debug("device spec (firmware %d): audio: %d in, %d out, "
 156                         "MIDI: %d in, %d out, data alignment %d\n",
 157                         dev->spec.fw_version,
 158                         dev->spec.num_analog_audio_in,
 159                         dev->spec.num_analog_audio_out,
 160                         dev->spec.num_midi_in,
 161                         dev->spec.num_midi_out,
 162                         dev->spec.data_alignment);
 163
 164                 dev->spec_received++;
 165                 wake_up(&dev->ep1_wait_queue);
 166                 break;
 167         case EP1_CMD_AUDIO_PARAMS:
 168                 dev->audio_parm_answer = buf[1];
 169                 wake_up(&dev->ep1_wait_queue);
 170                 break;
 171         case EP1_CMD_MIDI_READ:
 172                 snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
 173                 break;
 174         case EP1_CMD_READ_IO:
 175                 if (dev->chip.usb_id ==
 176                         USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
 177                         if (urb->actual_length > sizeof(dev->control_state))
 178                                 urb->actual_length = sizeof(dev->control_state);
 179                         memcpy(dev->control_state, buf + 1, urb->actual_length);
 180                         wake_up(&dev->ep1_wait_queue);
 181                         break;
 182                 }
 183 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 184         case EP1_CMD_READ_ERP:
 185         case EP1_CMD_READ_ANALOG:
 186                 snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
 187 #endif
 188                 break;
 189         }
 190
 191         dev->ep1_in_urb.actual_length = 0;
 192         ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
 193         if (ret < 0)
 194                 log("unable to submit urb. OOM!?\n");
 195 }
 196
 197 int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
 198                                unsigned char command,
 199                                const unsigned char *buffer,
 200                                int len)
 201 {
 202         int actual_len;
 203         struct usb_device *usb_dev = dev->chip.dev;
 204
 205         if (!usb_dev)
 206                 return -EIO;
 207
 208         if (len > EP1_BUFSIZE - 1)
 209                 len = EP1_BUFSIZE - 1;
 210
 211         if (buffer && len > 0)
 212                 memcpy(dev->ep1_out_buf+1, buffer, len);
 213
 214         dev->ep1_out_buf[0] = command;
 215         return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
 216                            dev->ep1_out_buf, len+1, &actual_len, 200);
 217 }
 218
 219 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
 220                                     int rate, int depth, int bpp)
 221 {
 222         int ret;
 223         char tmp[5];
 224
 225         switch (rate) {
 226         case 44100:     tmp[0] = SAMPLERATE_44100;   break;
 227         case 48000:     tmp[0] = SAMPLERATE_48000;   break;
 228         case 88200:     tmp[0] = SAMPLERATE_88200;   break;
 229         case 96000:     tmp[0] = SAMPLERATE_96000;   break;
 230         case 192000:    tmp[0] = SAMPLERATE_192000;  break;
 231         default:        return -EINVAL;
 232         }
 233
 234         switch (depth) {
 235         case 16:        tmp[1] = DEPTH_16;   break;
 236         case 24:        tmp[1] = DEPTH_24;   break;
 237         default:        return -EINVAL;
 238         }
 239
 240         tmp[2] = bpp & 0xff;
 241         tmp[3] = bpp >> 8;
 242         tmp[4] = 1; /* packets per microframe */
 243
 244         debug("setting audio params: %d Hz, %d bits, %d bpp\n",
 245                 rate, depth, bpp);
 246
 247         dev->audio_parm_answer = -1;
 248         ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
 249                                          tmp, sizeof(tmp));
 250
 251         if (ret)
 252                 return ret;
 253
 254         if (!wait_event_timeout(dev->ep1_wait_queue,
 255             dev->audio_parm_answer >= 0, HZ))
 256                 return -EPIPE;
 257
 258         if (dev->audio_parm_answer != 1)
 259                 debug("unable to set the device's audio params\n");
 260         else
 261                 dev->bpp = bpp;
 262
 263         return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
 264 }
 265
 266 int snd_usb_caiaq_set_auto_msg(struct snd_usb_caiaqdev *dev,
 267                                int digital, int analog, int erp)
 268 {
 269         char tmp[3] = { digital, analog, erp };
 270         return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
 271                                           tmp, sizeof(tmp));
 272 }
 273
 274 static void __devinit setup_card(struct snd_usb_caiaqdev *dev)
 275 {
 276         int ret;
 277         char val[4];
 278
 279         /* device-specific startup specials */
 280         switch (dev->chip.usb_id) {
 281         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
 282                 /* RigKontrol2 - display centered dash ('-') */
 283                 val[0] = 0x00;
 284                 val[1] = 0x00;
 285                 val[2] = 0x01;
 286                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
 287                 break;
 288         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
 289                 /* RigKontrol2 - display two centered dashes ('--') */
 290                 val[0] = 0x00;
 291                 val[1] = 0x40;
 292                 val[2] = 0x40;
 293                 val[3] = 0x00;
 294                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
 295                 break;
 296         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
 297                 /* Audio Kontrol 1 - make USB-LED stop blinking */
 298                 val[0] = 0x00;
 299                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
 300                 break;
 301         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
 302                 /* Audio 8 DJ - trigger read of current settings */
 303                 dev->control_state[0] = 0xff;
 304                 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
 305                 snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
 306
 307                 if (!wait_event_timeout(dev->ep1_wait_queue,
 308                                         dev->control_state[0] != 0xff, HZ))
 309                         return;
 310
 311                 /* fix up some defaults */
 312                 if ((dev->control_state[1] != 2) ||
 313                     (dev->control_state[2] != 3) ||
 314                     (dev->control_state[4] != 2)) {
 315                         dev->control_state[1] = 2;
 316                         dev->control_state[2] = 3;
 317                         dev->control_state[4] = 2;
 318                         snd_usb_caiaq_send_command(dev,
 319                                 EP1_CMD_WRITE_IO, dev->control_state, 6);
 320                 }
 321
 322                 break;
 323         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ):
 324                 /* Audio 4 DJ - default input mode to phono */
 325                 dev->control_state[0] = 2;
 326                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO,
 327                         dev->control_state, 1);
 328                 break;
 329         }
 330
 331         if (dev->spec.num_analog_audio_out +
 332             dev->spec.num_analog_audio_in +
 333             dev->spec.num_digital_audio_out +
 334             dev->spec.num_digital_audio_in > 0) {
 335                 ret = snd_usb_caiaq_audio_init(dev);
 336                 if (ret < 0)
 337                         log("Unable to set up audio system (ret=%d)\n", ret);
 338         }
 339
 340         if (dev->spec.num_midi_in +
 341             dev->spec.num_midi_out > 0) {
 342                 ret = snd_usb_caiaq_midi_init(dev);
 343                 if (ret < 0)
 344                         log("Unable to set up MIDI system (ret=%d)\n", ret);
 345         }
 346
 347 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 348         ret = snd_usb_caiaq_input_init(dev);
 349         if (ret < 0)
 350                 log("Unable to set up input system (ret=%d)\n", ret);
 351 #endif
 352
 353         /* finally, register the card and all its sub-instances */
 354         ret = snd_card_register(dev->chip.card);
 355         if (ret < 0) {
 356                 log("snd_card_register() returned %d\n", ret);
 357                 snd_card_free(dev->chip.card);
 358         }
 359
 360         ret = snd_usb_caiaq_control_init(dev);
 361         if (ret < 0)
 362                 log("Unable to set up control system (ret=%d)\n", ret);
 363 }
 364
 365 static int create_card(struct usb_device *usb_dev,
 366                        struct usb_interface *intf,
 367                        struct snd_card **cardp)
 368 {
 369         int devnum;
 370         int err;
 371         struct snd_card *card;
 372         struct snd_usb_caiaqdev *dev;
 373
 374         for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
 375                 if (enable[devnum] && !snd_card_used[devnum])
 376                         break;
 377
 378         if (devnum >= SNDRV_CARDS)
 379                 return -ENODEV;
 380
 381         err = snd_card_create(index[devnum], id[devnum], THIS_MODULE,
 382                               sizeof(struct snd_usb_caiaqdev), &card);
 383         if (err < 0)
 384                 return err;
 385
 386         dev = caiaqdev(card);
 387         dev->chip.dev = usb_dev;
 388         dev->chip.card = card;
 389         dev->chip.usb_id = USB_ID(le16_to_cpu(usb_dev->descriptor.idVendor),
 390                                   le16_to_cpu(usb_dev->descriptor.idProduct));
 391         spin_lock_init(&dev->spinlock);
 392         snd_card_set_dev(card, &intf->dev);
 393
 394         *cardp = card;
 395         return 0;
 396 }
 397
 398 static int __devinit init_card(struct snd_usb_caiaqdev *dev)
 399 {
 400         char *c, usbpath[32];
 401         struct usb_device *usb_dev = dev->chip.dev;
 402         struct snd_card *card = dev->chip.card;
 403         int err, len;
 404
 405         if (usb_set_interface(usb_dev, 0, 1) != 0) {
 406                 log("can't set alt interface.\n");
 407                 return -EIO;
 408         }
 409
 410         usb_init_urb(&dev->ep1_in_urb);
 411         usb_init_urb(&dev->midi_out_urb);
 412
 413         usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
 414                           usb_rcvbulkpipe(usb_dev, 0x1),
 415                           dev->ep1_in_buf, EP1_BUFSIZE,
 416                           usb_ep1_command_reply_dispatch, dev);
 417
 418         usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
 419                           usb_sndbulkpipe(usb_dev, 0x1),
 420                           dev->midi_out_buf, EP1_BUFSIZE,
 421                           snd_usb_caiaq_midi_output_done, dev);
 422
 423         init_waitqueue_head(&dev->ep1_wait_queue);
 424         init_waitqueue_head(&dev->prepare_wait_queue);
 425
 426         if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
 427                 return -EIO;
 428
 429         err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
 430         if (err)
 431                 return err;
 432
 433         if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
 434                 return -ENODEV;
 435
 436         usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
 437                    dev->vendor_name, CAIAQ_USB_STR_LEN);
 438
 439         usb_string(usb_dev, usb_dev->descriptor.iProduct,
 440                    dev->product_name, CAIAQ_USB_STR_LEN);
 441
 442         strlcpy(card->driver, MODNAME, sizeof(card->driver));
 443         strlcpy(card->shortname, dev->product_name, sizeof(card->shortname));
 444         strlcpy(card->mixername, dev->product_name, sizeof(card->mixername));
 445
 446         /* if the id was not passed as module option, fill it with a shortened
 447          * version of the product string which does not contain any
 448          * whitespaces */
 449
 450         if (*card->id == '\0') {
 451                 char id[sizeof(card->id)];
 452
 453                 memset(id, 0, sizeof(id));
 454
 455                 for (c = card->shortname, len = 0;
 456                         *c && len < sizeof(card->id); c++)
 457                         if (*c != ' ')
 458                                 id[len++] = *c;
 459
 460                 snd_card_set_id(card, id);
 461         }
 462
 463         usb_make_path(usb_dev, usbpath, sizeof(usbpath));
 464         snprintf(card->longname, sizeof(card->longname),
 465                        "%s %s (%s)",
 466                        dev->vendor_name, dev->product_name, usbpath);
 467
 468         setup_card(dev);
 469         return 0;
 470 }
 471
 472 static int __devinit snd_probe(struct usb_interface *intf,
 473                      const struct usb_device_id *id)
 474 {
 475         int ret;
 476         struct snd_card *card;
 477         struct usb_device *device = interface_to_usbdev(intf);
 478
 479         ret = create_card(device, intf, &card);
 480
 481         if (ret < 0)
 482                 return ret;
 483
 484         usb_set_intfdata(intf, card);
 485         ret = init_card(caiaqdev(card));
 486         if (ret < 0) {
 487                 log("unable to init card! (ret=%d)\n", ret);
 488                 snd_card_free(card);
 489                 return ret;
 490         }
 491
 492         return 0;
 493 }
 494
 495 static void snd_disconnect(struct usb_interface *intf)
 496 {
 497         struct snd_usb_caiaqdev *dev;
 498         struct snd_card *card = usb_get_intfdata(intf);
 499
 500         debug("%s(%p)\n", __func__, intf);
 501
 502         if (!card)
 503                 return;
 504
 505         dev = caiaqdev(card);
 506         snd_card_disconnect(card);
 507
 508 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 509         snd_usb_caiaq_input_free(dev);
 510 #endif
 511         snd_usb_caiaq_audio_free(dev);
 512
 513         usb_kill_urb(&dev->ep1_in_urb);
 514         usb_kill_urb(&dev->midi_out_urb);
 515
 516         snd_card_free(card);
 517         usb_reset_device(interface_to_usbdev(intf));
 518 }
 519
 520
 521 MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
 522 static struct usb_driver snd_usb_driver = {
 523         .name           = MODNAME,
 524         .probe          = snd_probe,
 525         .disconnect     = snd_disconnect,
 526         .id_table       = snd_usb_id_table,
 527 };
 528
 529 static int __init snd_module_init(void)
 530 {
 531         return usb_register(&snd_usb_driver);
 532 }
 533
 534 static void __exit snd_module_exit(void)
 535 {
 536         usb_deregister(&snd_usb_driver);
 537 }
 538
 539 module_init(snd_module_init)
 540 module_exit(snd_module_exit)
 541