1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * caiaq.c: ALSA driver for caiaq/NativeInstruments devices 4 * 5 * Copyright (c) 2007 Daniel Mack <daniel@caiaq.de> 6 * Karsten Wiese <fzu@wemgehoertderstaat.de> 7 */ 8 9 #include <linux/moduleparam.h> 10 #include <linux/device.h> 11 #include <linux/interrupt.h> 12 #include <linux/module.h> 13 #include <linux/init.h> 14 #include <linux/gfp.h> 15 #include <linux/usb.h> 16 #include <sound/initval.h> 17 #include <sound/core.h> 18 #include <sound/pcm.h> 19 20 #include "device.h" 21 #include "audio.h" 22 #include "midi.h" 23 #include "control.h" 24 #include "input.h" 25 26 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); 27 MODULE_DESCRIPTION("caiaq USB audio"); 28 MODULE_LICENSE("GPL"); 29 30 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ 31 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ 32 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 33 34 module_param_array(index, int, NULL, 0444); 35 MODULE_PARM_DESC(index, "Index value for the caiaq sound device"); 36 module_param_array(id, charp, NULL, 0444); 37 MODULE_PARM_DESC(id, "ID string for the caiaq soundcard."); 38 module_param_array(enable, bool, NULL, 0444); 39 MODULE_PARM_DESC(enable, "Enable the caiaq soundcard."); 40 41 enum { 42 SAMPLERATE_44100 = 0, 43 SAMPLERATE_48000 = 1, 44 SAMPLERATE_96000 = 2, 45 SAMPLERATE_192000 = 3, 46 SAMPLERATE_88200 = 4, 47 SAMPLERATE_INVALID = 0xff 48 }; 49 50 enum { 51 DEPTH_NONE = 0, 52 DEPTH_16 = 1, 53 DEPTH_24 = 2, 54 DEPTH_32 = 3 55 }; 56 57 static const struct usb_device_id snd_usb_id_table[] = { 58 { 59 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 60 .idVendor = USB_VID_NATIVEINSTRUMENTS, 61 .idProduct = USB_PID_RIGKONTROL2 62 }, 63 { 64 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 65 .idVendor = USB_VID_NATIVEINSTRUMENTS, 66 .idProduct = USB_PID_RIGKONTROL3 67 }, 68 { 69 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 70 .idVendor = USB_VID_NATIVEINSTRUMENTS, 71 .idProduct = USB_PID_KORECONTROLLER 72 }, 73 { 74 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 75 .idVendor = USB_VID_NATIVEINSTRUMENTS, 76 .idProduct = USB_PID_KORECONTROLLER2 77 }, 78 { 79 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 80 .idVendor = USB_VID_NATIVEINSTRUMENTS, 81 .idProduct = USB_PID_AK1 82 }, 83 { 84 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 85 .idVendor = USB_VID_NATIVEINSTRUMENTS, 86 .idProduct = USB_PID_AUDIO8DJ 87 }, 88 { 89 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 90 .idVendor = USB_VID_NATIVEINSTRUMENTS, 91 .idProduct = USB_PID_SESSIONIO 92 }, 93 { 94 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 95 .idVendor = USB_VID_NATIVEINSTRUMENTS, 96 .idProduct = USB_PID_GUITARRIGMOBILE 97 }, 98 { 99 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 100 .idVendor = USB_VID_NATIVEINSTRUMENTS, 101 .idProduct = USB_PID_AUDIO4DJ 102 }, 103 { 104 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 105 .idVendor = USB_VID_NATIVEINSTRUMENTS, 106 .idProduct = USB_PID_AUDIO2DJ 107 }, 108 { 109 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 110 .idVendor = USB_VID_NATIVEINSTRUMENTS, 111 .idProduct = USB_PID_TRAKTORKONTROLX1 112 }, 113 { 114 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 115 .idVendor = USB_VID_NATIVEINSTRUMENTS, 116 .idProduct = USB_PID_TRAKTORKONTROLS4 117 }, 118 { 119 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 120 .idVendor = USB_VID_NATIVEINSTRUMENTS, 121 .idProduct = USB_PID_TRAKTORAUDIO2 122 }, 123 { 124 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 125 .idVendor = USB_VID_NATIVEINSTRUMENTS, 126 .idProduct = USB_PID_MASCHINECONTROLLER 127 }, 128 { /* terminator */ } 129 }; 130 131 static void usb_ep1_command_reply_dispatch (struct urb* urb) 132 { 133 int ret; 134 struct device *dev = &urb->dev->dev; 135 struct snd_usb_caiaqdev *cdev = urb->context; 136 unsigned char *buf = urb->transfer_buffer; 137 138 if (urb->status || !cdev) { 139 dev_warn(dev, "received EP1 urb->status = %i\n", urb->status); 140 return; 141 } 142 143 switch(buf[0]) { 144 case EP1_CMD_GET_DEVICE_INFO: 145 memcpy(&cdev->spec, buf+1, sizeof(struct caiaq_device_spec)); 146 cdev->spec.fw_version = le16_to_cpu(cdev->spec.fw_version); 147 dev_dbg(dev, "device spec (firmware %d): audio: %d in, %d out, " 148 "MIDI: %d in, %d out, data alignment %d\n", 149 cdev->spec.fw_version, 150 cdev->spec.num_analog_audio_in, 151 cdev->spec.num_analog_audio_out, 152 cdev->spec.num_midi_in, 153 cdev->spec.num_midi_out, 154 cdev->spec.data_alignment); 155 156 cdev->spec_received++; 157 wake_up(&cdev->ep1_wait_queue); 158 break; 159 case EP1_CMD_AUDIO_PARAMS: 160 cdev->audio_parm_answer = buf[1]; 161 wake_up(&cdev->ep1_wait_queue); 162 break; 163 case EP1_CMD_MIDI_READ: 164 snd_usb_caiaq_midi_handle_input(cdev, buf[1], buf + 3, buf[2]); 165 break; 166 case EP1_CMD_READ_IO: 167 if (cdev->chip.usb_id == 168 USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) { 169 if (urb->actual_length > sizeof(cdev->control_state)) 170 urb->actual_length = sizeof(cdev->control_state); 171 memcpy(cdev->control_state, buf + 1, urb->actual_length); 172 wake_up(&cdev->ep1_wait_queue); 173 break; 174 } 175 #ifdef CONFIG_SND_USB_CAIAQ_INPUT 176 fallthrough; 177 case EP1_CMD_READ_ERP: 178 case EP1_CMD_READ_ANALOG: 179 snd_usb_caiaq_input_dispatch(cdev, buf, urb->actual_length); 180 #endif 181 break; 182 } 183 184 cdev->ep1_in_urb.actual_length = 0; 185 ret = usb_submit_urb(&cdev->ep1_in_urb, GFP_ATOMIC); 186 if (ret < 0) 187 dev_err(dev, "unable to submit urb. OOM!?\n"); 188 } 189 190 int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *cdev, 191 unsigned char command, 192 const unsigned char *buffer, 193 int len) 194 { 195 int actual_len; 196 struct usb_device *usb_dev = cdev->chip.dev; 197 198 if (!usb_dev) 199 return -EIO; 200 201 if (len > EP1_BUFSIZE - 1) 202 len = EP1_BUFSIZE - 1; 203 204 if (buffer && len > 0) 205 memcpy(cdev->ep1_out_buf+1, buffer, len); 206 207 cdev->ep1_out_buf[0] = command; 208 return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1), 209 cdev->ep1_out_buf, len+1, &actual_len, 200); 210 } 211 212 int snd_usb_caiaq_send_command_bank(struct snd_usb_caiaqdev *cdev, 213 unsigned char command, 214 unsigned char bank, 215 const unsigned char *buffer, 216 int len) 217 { 218 int actual_len; 219 struct usb_device *usb_dev = cdev->chip.dev; 220 221 if (!usb_dev) 222 return -EIO; 223 224 if (len > EP1_BUFSIZE - 2) 225 len = EP1_BUFSIZE - 2; 226 227 if (buffer && len > 0) 228 memcpy(cdev->ep1_out_buf+2, buffer, len); 229 230 cdev->ep1_out_buf[0] = command; 231 cdev->ep1_out_buf[1] = bank; 232 233 return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1), 234 cdev->ep1_out_buf, len+2, &actual_len, 200); 235 } 236 237 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *cdev, 238 int rate, int depth, int bpp) 239 { 240 int ret; 241 char tmp[5]; 242 struct device *dev = caiaqdev_to_dev(cdev); 243 244 switch (rate) { 245 case 44100: tmp[0] = SAMPLERATE_44100; break; 246 case 48000: tmp[0] = SAMPLERATE_48000; break; 247 case 88200: tmp[0] = SAMPLERATE_88200; break; 248 case 96000: tmp[0] = SAMPLERATE_96000; break; 249 case 192000: tmp[0] = SAMPLERATE_192000; break; 250 default: return -EINVAL; 251 } 252 253 switch (depth) { 254 case 16: tmp[1] = DEPTH_16; break; 255 case 24: tmp[1] = DEPTH_24; break; 256 default: return -EINVAL; 257 } 258 259 tmp[2] = bpp & 0xff; 260 tmp[3] = bpp >> 8; 261 tmp[4] = 1; /* packets per microframe */ 262 263 dev_dbg(dev, "setting audio params: %d Hz, %d bits, %d bpp\n", 264 rate, depth, bpp); 265 266 cdev->audio_parm_answer = -1; 267 ret = snd_usb_caiaq_send_command(cdev, EP1_CMD_AUDIO_PARAMS, 268 tmp, sizeof(tmp)); 269 270 if (ret) 271 return ret; 272 273 if (!wait_event_timeout(cdev->ep1_wait_queue, 274 cdev->audio_parm_answer >= 0, HZ)) 275 return -EPIPE; 276 277 if (cdev->audio_parm_answer != 1) 278 dev_dbg(dev, "unable to set the device's audio params\n"); 279 else 280 cdev->bpp = bpp; 281 282 return cdev->audio_parm_answer == 1 ? 0 : -EINVAL; 283 } 284 285 int snd_usb_caiaq_set_auto_msg(struct snd_usb_caiaqdev *cdev, 286 int digital, int analog, int erp) 287 { 288 char tmp[3] = { digital, analog, erp }; 289 return snd_usb_caiaq_send_command(cdev, EP1_CMD_AUTO_MSG, 290 tmp, sizeof(tmp)); 291 } 292 293 static void setup_card(struct snd_usb_caiaqdev *cdev) 294 { 295 int ret; 296 char val[4]; 297 struct device *dev = caiaqdev_to_dev(cdev); 298 299 /* device-specific startup specials */ 300 switch (cdev->chip.usb_id) { 301 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): 302 /* RigKontrol2 - display centered dash ('-') */ 303 val[0] = 0x00; 304 val[1] = 0x00; 305 val[2] = 0x01; 306 snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 3); 307 break; 308 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): 309 /* RigKontrol2 - display two centered dashes ('--') */ 310 val[0] = 0x00; 311 val[1] = 0x40; 312 val[2] = 0x40; 313 val[3] = 0x00; 314 snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 4); 315 break; 316 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): 317 /* Audio Kontrol 1 - make USB-LED stop blinking */ 318 val[0] = 0x00; 319 snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 1); 320 break; 321 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): 322 /* Audio 8 DJ - trigger read of current settings */ 323 cdev->control_state[0] = 0xff; 324 snd_usb_caiaq_set_auto_msg(cdev, 1, 0, 0); 325 snd_usb_caiaq_send_command(cdev, EP1_CMD_READ_IO, NULL, 0); 326 327 if (!wait_event_timeout(cdev->ep1_wait_queue, 328 cdev->control_state[0] != 0xff, HZ)) 329 return; 330 331 /* fix up some defaults */ 332 if ((cdev->control_state[1] != 2) || 333 (cdev->control_state[2] != 3) || 334 (cdev->control_state[4] != 2)) { 335 cdev->control_state[1] = 2; 336 cdev->control_state[2] = 3; 337 cdev->control_state[4] = 2; 338 snd_usb_caiaq_send_command(cdev, 339 EP1_CMD_WRITE_IO, cdev->control_state, 6); 340 } 341 342 break; 343 } 344 345 if (cdev->spec.num_analog_audio_out + 346 cdev->spec.num_analog_audio_in + 347 cdev->spec.num_digital_audio_out + 348 cdev->spec.num_digital_audio_in > 0) { 349 ret = snd_usb_caiaq_audio_init(cdev); 350 if (ret < 0) 351 dev_err(dev, "Unable to set up audio system (ret=%d)\n", ret); 352 } 353 354 if (cdev->spec.num_midi_in + 355 cdev->spec.num_midi_out > 0) { 356 ret = snd_usb_caiaq_midi_init(cdev); 357 if (ret < 0) 358 dev_err(dev, "Unable to set up MIDI system (ret=%d)\n", ret); 359 } 360 361 #ifdef CONFIG_SND_USB_CAIAQ_INPUT 362 ret = snd_usb_caiaq_input_init(cdev); 363 if (ret < 0) 364 dev_err(dev, "Unable to set up input system (ret=%d)\n", ret); 365 #endif 366 367 /* finally, register the card and all its sub-instances */ 368 ret = snd_card_register(cdev->chip.card); 369 if (ret < 0) { 370 dev_err(dev, "snd_card_register() returned %d\n", ret); 371 snd_card_free(cdev->chip.card); 372 } 373 374 ret = snd_usb_caiaq_control_init(cdev); 375 if (ret < 0) 376 dev_err(dev, "Unable to set up control system (ret=%d)\n", ret); 377 } 378 379 static int create_card(struct usb_device *usb_dev, 380 struct usb_interface *intf, 381 struct snd_card **cardp) 382 { 383 int devnum; 384 int err; 385 struct snd_card *card; 386 struct snd_usb_caiaqdev *cdev; 387 388 for (devnum = 0; devnum < SNDRV_CARDS; devnum++) 389 if (enable[devnum]) 390 break; 391 392 if (devnum >= SNDRV_CARDS) 393 return -ENODEV; 394 395 err = snd_card_new(&intf->dev, 396 index[devnum], id[devnum], THIS_MODULE, 397 sizeof(struct snd_usb_caiaqdev), &card); 398 if (err < 0) 399 return err; 400 401 cdev = caiaqdev(card); 402 cdev->chip.dev = usb_dev; 403 cdev->chip.card = card; 404 cdev->chip.usb_id = USB_ID(le16_to_cpu(usb_dev->descriptor.idVendor), 405 le16_to_cpu(usb_dev->descriptor.idProduct)); 406 spin_lock_init(&cdev->spinlock); 407 408 *cardp = card; 409 return 0; 410 } 411 412 static int init_card(struct snd_usb_caiaqdev *cdev) 413 { 414 char *c, usbpath[32]; 415 struct usb_device *usb_dev = cdev->chip.dev; 416 struct snd_card *card = cdev->chip.card; 417 struct device *dev = caiaqdev_to_dev(cdev); 418 int err, len; 419 420 if (usb_set_interface(usb_dev, 0, 1) != 0) { 421 dev_err(dev, "can't set alt interface.\n"); 422 return -EIO; 423 } 424 425 usb_init_urb(&cdev->ep1_in_urb); 426 usb_init_urb(&cdev->midi_out_urb); 427 428 usb_fill_bulk_urb(&cdev->ep1_in_urb, usb_dev, 429 usb_rcvbulkpipe(usb_dev, 0x1), 430 cdev->ep1_in_buf, EP1_BUFSIZE, 431 usb_ep1_command_reply_dispatch, cdev); 432 433 usb_fill_bulk_urb(&cdev->midi_out_urb, usb_dev, 434 usb_sndbulkpipe(usb_dev, 0x1), 435 cdev->midi_out_buf, EP1_BUFSIZE, 436 snd_usb_caiaq_midi_output_done, cdev); 437 438 /* sanity checks of EPs before actually submitting */ 439 if (usb_urb_ep_type_check(&cdev->ep1_in_urb) || 440 usb_urb_ep_type_check(&cdev->midi_out_urb)) { 441 dev_err(dev, "invalid EPs\n"); 442 return -EINVAL; 443 } 444 445 init_waitqueue_head(&cdev->ep1_wait_queue); 446 init_waitqueue_head(&cdev->prepare_wait_queue); 447 448 if (usb_submit_urb(&cdev->ep1_in_urb, GFP_KERNEL) != 0) 449 return -EIO; 450 451 err = snd_usb_caiaq_send_command(cdev, EP1_CMD_GET_DEVICE_INFO, NULL, 0); 452 if (err) 453 goto err_kill_urb; 454 455 if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ)) { 456 err = -ENODEV; 457 goto err_kill_urb; 458 } 459 460 usb_string(usb_dev, usb_dev->descriptor.iManufacturer, 461 cdev->vendor_name, CAIAQ_USB_STR_LEN); 462 463 usb_string(usb_dev, usb_dev->descriptor.iProduct, 464 cdev->product_name, CAIAQ_USB_STR_LEN); 465 466 strscpy(card->driver, MODNAME, sizeof(card->driver)); 467 strscpy(card->shortname, cdev->product_name, sizeof(card->shortname)); 468 strscpy(card->mixername, cdev->product_name, sizeof(card->mixername)); 469 470 /* if the id was not passed as module option, fill it with a shortened 471 * version of the product string which does not contain any 472 * whitespaces */ 473 474 if (*card->id == '\0') { 475 char id[sizeof(card->id)]; 476 477 memset(id, 0, sizeof(id)); 478 479 for (c = card->shortname, len = 0; 480 *c && len < sizeof(card->id); c++) 481 if (*c != ' ') 482 id[len++] = *c; 483 484 snd_card_set_id(card, id); 485 } 486 487 usb_make_path(usb_dev, usbpath, sizeof(usbpath)); 488 scnprintf(card->longname, sizeof(card->longname), "%s %s (%s)", 489 cdev->vendor_name, cdev->product_name, usbpath); 490 491 setup_card(cdev); 492 return 0; 493 494 err_kill_urb: 495 usb_kill_urb(&cdev->ep1_in_urb); 496 return err; 497 } 498 499 static int snd_probe(struct usb_interface *intf, 500 const struct usb_device_id *id) 501 { 502 int ret; 503 struct snd_card *card = NULL; 504 struct usb_device *usb_dev = interface_to_usbdev(intf); 505 506 ret = create_card(usb_dev, intf, &card); 507 508 if (ret < 0) 509 return ret; 510 511 usb_set_intfdata(intf, card); 512 ret = init_card(caiaqdev(card)); 513 if (ret < 0) { 514 dev_err(&usb_dev->dev, "unable to init card! (ret=%d)\n", ret); 515 snd_card_free(card); 516 return ret; 517 } 518 519 return 0; 520 } 521 522 static void snd_disconnect(struct usb_interface *intf) 523 { 524 struct snd_card *card = usb_get_intfdata(intf); 525 struct device *dev = intf->usb_dev; 526 struct snd_usb_caiaqdev *cdev; 527 528 if (!card) 529 return; 530 531 cdev = caiaqdev(card); 532 dev_dbg(dev, "%s(%p)\n", __func__, intf); 533 534 snd_card_disconnect(card); 535 536 #ifdef CONFIG_SND_USB_CAIAQ_INPUT 537 snd_usb_caiaq_input_free(cdev); 538 #endif 539 snd_usb_caiaq_audio_free(cdev); 540 541 usb_kill_urb(&cdev->ep1_in_urb); 542 usb_kill_urb(&cdev->midi_out_urb); 543 544 snd_card_free(card); 545 usb_reset_device(interface_to_usbdev(intf)); 546 } 547 548 549 MODULE_DEVICE_TABLE(usb, snd_usb_id_table); 550 static struct usb_driver snd_usb_driver = { 551 .name = MODNAME, 552 .probe = snd_probe, 553 .disconnect = snd_disconnect, 554 .id_table = snd_usb_id_table, 555 }; 556 557 module_usb_driver(snd_usb_driver); 558