sound/usb/caiaq/device.c

   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");
  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, Traktor Audio 2},"
  50                          "{Native Instruments, Session I/O},"
  51                          "{Native Instruments, GuitarRig mobile}"
  52                          "{Native Instruments, Traktor Kontrol X1}"
  53                          "{Native Instruments, Traktor Kontrol S4}");
  54
  55 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
  56 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
  57 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
  58 static int snd_card_used[SNDRV_CARDS];
  59
  60 module_param_array(index, int, NULL, 0444);
  61 MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
  62 module_param_array(id, charp, NULL, 0444);
  63 MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
  64 module_param_array(enable, bool, NULL, 0444);
  65 MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
  66
  67 enum {
  68         SAMPLERATE_44100        = 0,
  69         SAMPLERATE_48000        = 1,
  70         SAMPLERATE_96000        = 2,
  71         SAMPLERATE_192000       = 3,
  72         SAMPLERATE_88200        = 4,
  73         SAMPLERATE_INVALID      = 0xff
  74 };
  75
  76 enum {
  77         DEPTH_NONE      = 0,
  78         DEPTH_16        = 1,
  79         DEPTH_24        = 2,
  80         DEPTH_32        = 3
  81 };
  82
  83 static struct usb_device_id snd_usb_id_table[] = {
  84         {
  85                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  86                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  87                 .idProduct =    USB_PID_RIGKONTROL2
  88         },
  89         {
  90                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  91                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  92                 .idProduct =    USB_PID_RIGKONTROL3
  93         },
  94         {
  95                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
  96                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
  97                 .idProduct =    USB_PID_KORECONTROLLER
  98         },
  99         {
 100                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 101                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 102                 .idProduct =    USB_PID_KORECONTROLLER2
 103         },
 104         {
 105                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 106                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 107                 .idProduct =    USB_PID_AK1
 108         },
 109         {
 110                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 111                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 112                 .idProduct =    USB_PID_AUDIO8DJ
 113         },
 114         {
 115                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 116                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 117                 .idProduct =    USB_PID_SESSIONIO
 118         },
 119         {
 120                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 121                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 122                 .idProduct =    USB_PID_GUITARRIGMOBILE
 123         },
 124         {
 125                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 126                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 127                 .idProduct =    USB_PID_AUDIO4DJ
 128         },
 129         {
 130                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 131                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 132                 .idProduct =    USB_PID_AUDIO2DJ
 133         },
 134         {
 135                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 136                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 137                 .idProduct =    USB_PID_TRAKTORKONTROLX1
 138         },
 139         {
 140                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 141                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 142                 .idProduct =    USB_PID_TRAKTORKONTROLS4
 143         },
 144         {
 145                 .match_flags =  USB_DEVICE_ID_MATCH_DEVICE,
 146                 .idVendor =     USB_VID_NATIVEINSTRUMENTS,
 147                 .idProduct =    USB_PID_TRAKTORAUDIO2
 148         },
 149         { /* terminator */ }
 150 };
 151
 152 static void usb_ep1_command_reply_dispatch (struct urb* urb)
 153 {
 154         int ret;
 155         struct snd_usb_caiaqdev *dev = urb->context;
 156         unsigned char *buf = urb->transfer_buffer;
 157
 158         if (urb->status || !dev) {
 159                 log("received EP1 urb->status = %i\n", urb->status);
 160                 return;
 161         }
 162
 163         switch(buf[0]) {
 164         case EP1_CMD_GET_DEVICE_INFO:
 165                 memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
 166                 dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
 167                 debug("device spec (firmware %d): audio: %d in, %d out, "
 168                         "MIDI: %d in, %d out, data alignment %d\n",
 169                         dev->spec.fw_version,
 170                         dev->spec.num_analog_audio_in,
 171                         dev->spec.num_analog_audio_out,
 172                         dev->spec.num_midi_in,
 173                         dev->spec.num_midi_out,
 174                         dev->spec.data_alignment);
 175
 176                 dev->spec_received++;
 177                 wake_up(&dev->ep1_wait_queue);
 178                 break;
 179         case EP1_CMD_AUDIO_PARAMS:
 180                 dev->audio_parm_answer = buf[1];
 181                 wake_up(&dev->ep1_wait_queue);
 182                 break;
 183         case EP1_CMD_MIDI_READ:
 184                 snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
 185                 break;
 186         case EP1_CMD_READ_IO:
 187                 if (dev->chip.usb_id ==
 188                         USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
 189                         if (urb->actual_length > sizeof(dev->control_state))
 190                                 urb->actual_length = sizeof(dev->control_state);
 191                         memcpy(dev->control_state, buf + 1, urb->actual_length);
 192                         wake_up(&dev->ep1_wait_queue);
 193                         break;
 194                 }
 195 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 196         case EP1_CMD_READ_ERP:
 197         case EP1_CMD_READ_ANALOG:
 198                 snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
 199 #endif
 200                 break;
 201         }
 202
 203         dev->ep1_in_urb.actual_length = 0;
 204         ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
 205         if (ret < 0)
 206                 log("unable to submit urb. OOM!?\n");
 207 }
 208
 209 int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
 210                                unsigned char command,
 211                                const unsigned char *buffer,
 212                                int len)
 213 {
 214         int actual_len;
 215         struct usb_device *usb_dev = dev->chip.dev;
 216
 217         if (!usb_dev)
 218                 return -EIO;
 219
 220         if (len > EP1_BUFSIZE - 1)
 221                 len = EP1_BUFSIZE - 1;
 222
 223         if (buffer && len > 0)
 224                 memcpy(dev->ep1_out_buf+1, buffer, len);
 225
 226         dev->ep1_out_buf[0] = command;
 227         return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
 228                            dev->ep1_out_buf, len+1, &actual_len, 200);
 229 }
 230
 231 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
 232                                     int rate, int depth, int bpp)
 233 {
 234         int ret;
 235         char tmp[5];
 236
 237         switch (rate) {
 238         case 44100:     tmp[0] = SAMPLERATE_44100;   break;
 239         case 48000:     tmp[0] = SAMPLERATE_48000;   break;
 240         case 88200:     tmp[0] = SAMPLERATE_88200;   break;
 241         case 96000:     tmp[0] = SAMPLERATE_96000;   break;
 242         case 192000:    tmp[0] = SAMPLERATE_192000;  break;
 243         default:        return -EINVAL;
 244         }
 245
 246         switch (depth) {
 247         case 16:        tmp[1] = DEPTH_16;   break;
 248         case 24:        tmp[1] = DEPTH_24;   break;
 249         default:        return -EINVAL;
 250         }
 251
 252         tmp[2] = bpp & 0xff;
 253         tmp[3] = bpp >> 8;
 254         tmp[4] = 1; /* packets per microframe */
 255
 256         debug("setting audio params: %d Hz, %d bits, %d bpp\n",
 257                 rate, depth, bpp);
 258
 259         dev->audio_parm_answer = -1;
 260         ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
 261                                          tmp, sizeof(tmp));
 262
 263         if (ret)
 264                 return ret;
 265
 266         if (!wait_event_timeout(dev->ep1_wait_queue,
 267             dev->audio_parm_answer >= 0, HZ))
 268                 return -EPIPE;
 269
 270         if (dev->audio_parm_answer != 1)
 271                 debug("unable to set the device's audio params\n");
 272         else
 273                 dev->bpp = bpp;
 274
 275         return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
 276 }
 277
 278 int snd_usb_caiaq_set_auto_msg(struct snd_usb_caiaqdev *dev,
 279                                int digital, int analog, int erp)
 280 {
 281         char tmp[3] = { digital, analog, erp };
 282         return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
 283                                           tmp, sizeof(tmp));
 284 }
 285
 286 static void __devinit setup_card(struct snd_usb_caiaqdev *dev)
 287 {
 288         int ret;
 289         char val[4];
 290
 291         /* device-specific startup specials */
 292         switch (dev->chip.usb_id) {
 293         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
 294                 /* RigKontrol2 - display centered dash ('-') */
 295                 val[0] = 0x00;
 296                 val[1] = 0x00;
 297                 val[2] = 0x01;
 298                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
 299                 break;
 300         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
 301                 /* RigKontrol2 - display two centered dashes ('--') */
 302                 val[0] = 0x00;
 303                 val[1] = 0x40;
 304                 val[2] = 0x40;
 305                 val[3] = 0x00;
 306                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
 307                 break;
 308         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
 309                 /* Audio Kontrol 1 - make USB-LED stop blinking */
 310                 val[0] = 0x00;
 311                 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
 312                 break;
 313         case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
 314                 /* Audio 8 DJ - trigger read of current settings */
 315                 dev->control_state[0] = 0xff;
 316                 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
 317                 snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
 318
 319                 if (!wait_event_timeout(dev->ep1_wait_queue,
 320                                         dev->control_state[0] != 0xff, HZ))
 321                         return;
 322
 323                 /* fix up some defaults */
 324                 if ((dev->control_state[1] != 2) ||
 325                     (dev->control_state[2] != 3) ||
 326                     (dev->control_state[4] != 2)) {
 327                         dev->control_state[1] = 2;
 328                         dev->control_state[2] = 3;
 329                         dev->control_state[4] = 2;
 330                         snd_usb_caiaq_send_command(dev,
 331                                 EP1_CMD_WRITE_IO, dev->control_state, 6);
 332                 }
 333
 334                 break;
 335         }
 336
 337         if (dev->spec.num_analog_audio_out +
 338             dev->spec.num_analog_audio_in +
 339             dev->spec.num_digital_audio_out +
 340             dev->spec.num_digital_audio_in > 0) {
 341                 ret = snd_usb_caiaq_audio_init(dev);
 342                 if (ret < 0)
 343                         log("Unable to set up audio system (ret=%d)\n", ret);
 344         }
 345
 346         if (dev->spec.num_midi_in +
 347             dev->spec.num_midi_out > 0) {
 348                 ret = snd_usb_caiaq_midi_init(dev);
 349                 if (ret < 0)
 350                         log("Unable to set up MIDI system (ret=%d)\n", ret);
 351         }
 352
 353 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 354         ret = snd_usb_caiaq_input_init(dev);
 355         if (ret < 0)
 356                 log("Unable to set up input system (ret=%d)\n", ret);
 357 #endif
 358
 359         /* finally, register the card and all its sub-instances */
 360         ret = snd_card_register(dev->chip.card);
 361         if (ret < 0) {
 362                 log("snd_card_register() returned %d\n", ret);
 363                 snd_card_free(dev->chip.card);
 364         }
 365
 366         ret = snd_usb_caiaq_control_init(dev);
 367         if (ret < 0)
 368                 log("Unable to set up control system (ret=%d)\n", ret);
 369 }
 370
 371 static int create_card(struct usb_device *usb_dev,
 372                        struct usb_interface *intf,
 373                        struct snd_card **cardp)
 374 {
 375         int devnum;
 376         int err;
 377         struct snd_card *card;
 378         struct snd_usb_caiaqdev *dev;
 379
 380         for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
 381                 if (enable[devnum] && !snd_card_used[devnum])
 382                         break;
 383
 384         if (devnum >= SNDRV_CARDS)
 385                 return -ENODEV;
 386
 387         err = snd_card_create(index[devnum], id[devnum], THIS_MODULE,
 388                               sizeof(struct snd_usb_caiaqdev), &card);
 389         if (err < 0)
 390                 return err;
 391
 392         dev = caiaqdev(card);
 393         dev->chip.dev = usb_dev;
 394         dev->chip.card = card;
 395         dev->chip.usb_id = USB_ID(le16_to_cpu(usb_dev->descriptor.idVendor),
 396                                   le16_to_cpu(usb_dev->descriptor.idProduct));
 397         spin_lock_init(&dev->spinlock);
 398         snd_card_set_dev(card, &intf->dev);
 399
 400         *cardp = card;
 401         return 0;
 402 }
 403
 404 static int __devinit init_card(struct snd_usb_caiaqdev *dev)
 405 {
 406         char *c, usbpath[32];
 407         struct usb_device *usb_dev = dev->chip.dev;
 408         struct snd_card *card = dev->chip.card;
 409         int err, len;
 410
 411         if (usb_set_interface(usb_dev, 0, 1) != 0) {
 412                 log("can't set alt interface.\n");
 413                 return -EIO;
 414         }
 415
 416         usb_init_urb(&dev->ep1_in_urb);
 417         usb_init_urb(&dev->midi_out_urb);
 418
 419         usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
 420                           usb_rcvbulkpipe(usb_dev, 0x1),
 421                           dev->ep1_in_buf, EP1_BUFSIZE,
 422                           usb_ep1_command_reply_dispatch, dev);
 423
 424         usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
 425                           usb_sndbulkpipe(usb_dev, 0x1),
 426                           dev->midi_out_buf, EP1_BUFSIZE,
 427                           snd_usb_caiaq_midi_output_done, dev);
 428
 429         init_waitqueue_head(&dev->ep1_wait_queue);
 430         init_waitqueue_head(&dev->prepare_wait_queue);
 431
 432         if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
 433                 return -EIO;
 434
 435         err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
 436         if (err)
 437                 return err;
 438
 439         if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
 440                 return -ENODEV;
 441
 442         usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
 443                    dev->vendor_name, CAIAQ_USB_STR_LEN);
 444
 445         usb_string(usb_dev, usb_dev->descriptor.iProduct,
 446                    dev->product_name, CAIAQ_USB_STR_LEN);
 447
 448         strlcpy(card->driver, MODNAME, sizeof(card->driver));
 449         strlcpy(card->shortname, dev->product_name, sizeof(card->shortname));
 450         strlcpy(card->mixername, dev->product_name, sizeof(card->mixername));
 451
 452         /* if the id was not passed as module option, fill it with a shortened
 453          * version of the product string which does not contain any
 454          * whitespaces */
 455
 456         if (*card->id == '\0') {
 457                 char id[sizeof(card->id)];
 458
 459                 memset(id, 0, sizeof(id));
 460
 461                 for (c = card->shortname, len = 0;
 462                         *c && len < sizeof(card->id); c++)
 463                         if (*c != ' ')
 464                                 id[len++] = *c;
 465
 466                 snd_card_set_id(card, id);
 467         }
 468
 469         usb_make_path(usb_dev, usbpath, sizeof(usbpath));
 470         snprintf(card->longname, sizeof(card->longname),
 471                        "%s %s (%s)",
 472                        dev->vendor_name, dev->product_name, usbpath);
 473
 474         setup_card(dev);
 475         return 0;
 476 }
 477
 478 static int __devinit snd_probe(struct usb_interface *intf,
 479                      const struct usb_device_id *id)
 480 {
 481         int ret;
 482         struct snd_card *card;
 483         struct usb_device *device = interface_to_usbdev(intf);
 484
 485         ret = create_card(device, intf, &card);
 486
 487         if (ret < 0)
 488                 return ret;
 489
 490         usb_set_intfdata(intf, card);
 491         ret = init_card(caiaqdev(card));
 492         if (ret < 0) {
 493                 log("unable to init card! (ret=%d)\n", ret);
 494                 snd_card_free(card);
 495                 return ret;
 496         }
 497
 498         return 0;
 499 }
 500
 501 static void snd_disconnect(struct usb_interface *intf)
 502 {
 503         struct snd_usb_caiaqdev *dev;
 504         struct snd_card *card = usb_get_intfdata(intf);
 505
 506         debug("%s(%p)\n", __func__, intf);
 507
 508         if (!card)
 509                 return;
 510
 511         dev = caiaqdev(card);
 512         snd_card_disconnect(card);
 513
 514 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 515         snd_usb_caiaq_input_free(dev);
 516 #endif
 517         snd_usb_caiaq_audio_free(dev);
 518
 519         usb_kill_urb(&dev->ep1_in_urb);
 520         usb_kill_urb(&dev->midi_out_urb);
 521
 522         snd_card_free(card);
 523         usb_reset_device(interface_to_usbdev(intf));
 524 }
 525
 526
 527 MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
 528 static struct usb_driver snd_usb_driver = {
 529         .name           = MODNAME,
 530         .probe          = snd_probe,
 531         .disconnect     = snd_disconnect,
 532         .id_table       = snd_usb_id_table,
 533 };
 534
 535 static int __init snd_module_init(void)
 536 {
 537         return usb_register(&snd_usb_driver);
 538 }
 539
 540 static void __exit snd_module_exit(void)
 541 {
 542         usb_deregister(&snd_usb_driver);
 543 }
 544
 545 module_init(snd_module_init)
 546 module_exit(snd_module_exit)
 547