1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Line 6 Linux USB driver 4 * 5 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) 6 * Emil Myhrman (emil.myhrman@gmail.com) 7 */ 8 9 #include <linux/wait.h> 10 #include <linux/usb.h> 11 #include <linux/slab.h> 12 #include <linux/module.h> 13 #include <linux/leds.h> 14 #include <sound/core.h> 15 #include <sound/control.h> 16 17 #include "capture.h" 18 #include "driver.h" 19 #include "playback.h" 20 21 enum line6_device_type { 22 LINE6_GUITARPORT, 23 LINE6_PODSTUDIO_GX, 24 LINE6_PODSTUDIO_UX1, 25 LINE6_PODSTUDIO_UX2, 26 LINE6_TONEPORT_GX, 27 LINE6_TONEPORT_UX1, 28 LINE6_TONEPORT_UX2, 29 }; 30 31 struct usb_line6_toneport; 32 33 struct toneport_led { 34 struct led_classdev dev; 35 char name[64]; 36 struct usb_line6_toneport *toneport; 37 bool registered; 38 }; 39 40 struct usb_line6_toneport { 41 /* Generic Line 6 USB data */ 42 struct usb_line6 line6; 43 44 /* Source selector */ 45 int source; 46 47 /* Serial number of device */ 48 u32 serial_number; 49 50 /* Firmware version (x 100) */ 51 u8 firmware_version; 52 53 /* Device type */ 54 enum line6_device_type type; 55 56 /* LED instances */ 57 struct toneport_led leds[2]; 58 }; 59 60 #define line6_to_toneport(x) container_of(x, struct usb_line6_toneport, line6) 61 62 static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2); 63 64 #define TONEPORT_PCM_DELAY 1 65 66 static struct snd_ratden toneport_ratden = { 67 .num_min = 44100, 68 .num_max = 44100, 69 .num_step = 1, 70 .den = 1 71 }; 72 73 static struct line6_pcm_properties toneport_pcm_properties = { 74 .playback_hw = { 75 .info = (SNDRV_PCM_INFO_MMAP | 76 SNDRV_PCM_INFO_INTERLEAVED | 77 SNDRV_PCM_INFO_BLOCK_TRANSFER | 78 SNDRV_PCM_INFO_MMAP_VALID | 79 SNDRV_PCM_INFO_PAUSE | 80 SNDRV_PCM_INFO_SYNC_START), 81 .formats = SNDRV_PCM_FMTBIT_S16_LE, 82 .rates = SNDRV_PCM_RATE_KNOT, 83 .rate_min = 44100, 84 .rate_max = 44100, 85 .channels_min = 2, 86 .channels_max = 2, 87 .buffer_bytes_max = 60000, 88 .period_bytes_min = 64, 89 .period_bytes_max = 8192, 90 .periods_min = 1, 91 .periods_max = 1024}, 92 .capture_hw = { 93 .info = (SNDRV_PCM_INFO_MMAP | 94 SNDRV_PCM_INFO_INTERLEAVED | 95 SNDRV_PCM_INFO_BLOCK_TRANSFER | 96 SNDRV_PCM_INFO_MMAP_VALID | 97 SNDRV_PCM_INFO_SYNC_START), 98 .formats = SNDRV_PCM_FMTBIT_S16_LE, 99 .rates = SNDRV_PCM_RATE_KNOT, 100 .rate_min = 44100, 101 .rate_max = 44100, 102 .channels_min = 2, 103 .channels_max = 2, 104 .buffer_bytes_max = 60000, 105 .period_bytes_min = 64, 106 .period_bytes_max = 8192, 107 .periods_min = 1, 108 .periods_max = 1024}, 109 .rates = { 110 .nrats = 1, 111 .rats = &toneport_ratden}, 112 .bytes_per_channel = 2 113 }; 114 115 static const struct { 116 const char *name; 117 int code; 118 } toneport_source_info[] = { 119 {"Microphone", 0x0a01}, 120 {"Line", 0x0801}, 121 {"Instrument", 0x0b01}, 122 {"Inst & Mic", 0x0901} 123 }; 124 125 static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2) 126 { 127 int ret; 128 129 ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67, 130 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, 131 cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ); 132 133 if (ret < 0) { 134 dev_err(&usbdev->dev, "send failed (error %d)\n", ret); 135 return ret; 136 } 137 138 return 0; 139 } 140 141 /* monitor info callback */ 142 static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol, 143 struct snd_ctl_elem_info *uinfo) 144 { 145 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 146 uinfo->count = 1; 147 uinfo->value.integer.min = 0; 148 uinfo->value.integer.max = 256; 149 return 0; 150 } 151 152 /* monitor get callback */ 153 static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol, 154 struct snd_ctl_elem_value *ucontrol) 155 { 156 struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); 157 158 ucontrol->value.integer.value[0] = line6pcm->volume_monitor; 159 return 0; 160 } 161 162 /* monitor put callback */ 163 static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol, 164 struct snd_ctl_elem_value *ucontrol) 165 { 166 struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); 167 int err; 168 169 if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor) 170 return 0; 171 172 line6pcm->volume_monitor = ucontrol->value.integer.value[0]; 173 174 if (line6pcm->volume_monitor > 0) { 175 err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR, true); 176 if (err < 0) { 177 line6pcm->volume_monitor = 0; 178 line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR); 179 return err; 180 } 181 } else { 182 line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR); 183 } 184 185 return 1; 186 } 187 188 /* source info callback */ 189 static int snd_toneport_source_info(struct snd_kcontrol *kcontrol, 190 struct snd_ctl_elem_info *uinfo) 191 { 192 const int size = ARRAY_SIZE(toneport_source_info); 193 194 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 195 uinfo->count = 1; 196 uinfo->value.enumerated.items = size; 197 198 if (uinfo->value.enumerated.item >= size) 199 uinfo->value.enumerated.item = size - 1; 200 201 strcpy(uinfo->value.enumerated.name, 202 toneport_source_info[uinfo->value.enumerated.item].name); 203 204 return 0; 205 } 206 207 /* source get callback */ 208 static int snd_toneport_source_get(struct snd_kcontrol *kcontrol, 209 struct snd_ctl_elem_value *ucontrol) 210 { 211 struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); 212 struct usb_line6_toneport *toneport = line6_to_toneport(line6pcm->line6); 213 214 ucontrol->value.enumerated.item[0] = toneport->source; 215 return 0; 216 } 217 218 /* source put callback */ 219 static int snd_toneport_source_put(struct snd_kcontrol *kcontrol, 220 struct snd_ctl_elem_value *ucontrol) 221 { 222 struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); 223 struct usb_line6_toneport *toneport = line6_to_toneport(line6pcm->line6); 224 unsigned int source; 225 226 source = ucontrol->value.enumerated.item[0]; 227 if (source >= ARRAY_SIZE(toneport_source_info)) 228 return -EINVAL; 229 if (source == toneport->source) 230 return 0; 231 232 toneport->source = source; 233 toneport_send_cmd(toneport->line6.usbdev, 234 toneport_source_info[source].code, 0x0000); 235 return 1; 236 } 237 238 static void toneport_startup(struct usb_line6 *line6) 239 { 240 line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true); 241 } 242 243 /* control definition */ 244 static const struct snd_kcontrol_new toneport_control_monitor = { 245 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 246 .name = "Monitor Playback Volume", 247 .index = 0, 248 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 249 .info = snd_toneport_monitor_info, 250 .get = snd_toneport_monitor_get, 251 .put = snd_toneport_monitor_put 252 }; 253 254 /* source selector definition */ 255 static const struct snd_kcontrol_new toneport_control_source = { 256 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 257 .name = "PCM Capture Source", 258 .index = 0, 259 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 260 .info = snd_toneport_source_info, 261 .get = snd_toneport_source_get, 262 .put = snd_toneport_source_put 263 }; 264 265 /* 266 For the led on Guitarport. 267 Brightness goes from 0x00 to 0x26. Set a value above this to have led 268 blink. 269 (void cmd_0x02(byte red, byte green) 270 */ 271 272 static bool toneport_has_led(struct usb_line6_toneport *toneport) 273 { 274 switch (toneport->type) { 275 case LINE6_GUITARPORT: 276 case LINE6_TONEPORT_GX: 277 /* add your device here if you are missing support for the LEDs */ 278 return true; 279 280 default: 281 return false; 282 } 283 } 284 285 static const char * const toneport_led_colors[2] = { "red", "green" }; 286 static const int toneport_led_init_vals[2] = { 0x00, 0x26 }; 287 288 static void toneport_update_led(struct usb_line6_toneport *toneport) 289 { 290 toneport_send_cmd(toneport->line6.usbdev, 291 (toneport->leds[0].dev.brightness << 8) | 0x0002, 292 toneport->leds[1].dev.brightness); 293 } 294 295 static void toneport_led_brightness_set(struct led_classdev *led_cdev, 296 enum led_brightness brightness) 297 { 298 struct toneport_led *leds = 299 container_of(led_cdev, struct toneport_led, dev); 300 toneport_update_led(leds->toneport); 301 } 302 303 static int toneport_init_leds(struct usb_line6_toneport *toneport) 304 { 305 struct device *dev = &toneport->line6.usbdev->dev; 306 int i, err; 307 308 for (i = 0; i < 2; i++) { 309 struct toneport_led *led = &toneport->leds[i]; 310 struct led_classdev *leddev = &led->dev; 311 312 led->toneport = toneport; 313 snprintf(led->name, sizeof(led->name), "%s::%s", 314 dev_name(dev), toneport_led_colors[i]); 315 leddev->name = led->name; 316 leddev->brightness = toneport_led_init_vals[i]; 317 leddev->max_brightness = 0x26; 318 leddev->brightness_set = toneport_led_brightness_set; 319 err = led_classdev_register(dev, leddev); 320 if (err) 321 return err; 322 led->registered = true; 323 } 324 325 return 0; 326 } 327 328 static void toneport_remove_leds(struct usb_line6_toneport *toneport) 329 { 330 struct toneport_led *led; 331 int i; 332 333 for (i = 0; i < 2; i++) { 334 led = &toneport->leds[i]; 335 if (!led->registered) 336 break; 337 led_classdev_unregister(&led->dev); 338 led->registered = false; 339 } 340 } 341 342 static bool toneport_has_source_select(struct usb_line6_toneport *toneport) 343 { 344 switch (toneport->type) { 345 case LINE6_TONEPORT_UX1: 346 case LINE6_TONEPORT_UX2: 347 case LINE6_PODSTUDIO_UX1: 348 case LINE6_PODSTUDIO_UX2: 349 return true; 350 351 default: 352 return false; 353 } 354 } 355 356 /* 357 Setup Toneport device. 358 */ 359 static int toneport_setup(struct usb_line6_toneport *toneport) 360 { 361 u32 *ticks; 362 struct usb_line6 *line6 = &toneport->line6; 363 struct usb_device *usbdev = line6->usbdev; 364 365 ticks = kmalloc(sizeof(*ticks), GFP_KERNEL); 366 if (!ticks) 367 return -ENOMEM; 368 369 /* sync time on device with host: */ 370 /* note: 32-bit timestamps overflow in year 2106 */ 371 *ticks = (u32)ktime_get_real_seconds(); 372 line6_write_data(line6, 0x80c6, ticks, 4); 373 kfree(ticks); 374 375 /* enable device: */ 376 toneport_send_cmd(usbdev, 0x0301, 0x0000); 377 378 /* initialize source select: */ 379 if (toneport_has_source_select(toneport)) 380 toneport_send_cmd(usbdev, 381 toneport_source_info[toneport->source].code, 382 0x0000); 383 384 if (toneport_has_led(toneport)) 385 toneport_update_led(toneport); 386 387 schedule_delayed_work(&toneport->line6.startup_work, 388 msecs_to_jiffies(TONEPORT_PCM_DELAY * 1000)); 389 return 0; 390 } 391 392 /* 393 Toneport device disconnected. 394 */ 395 static void line6_toneport_disconnect(struct usb_line6 *line6) 396 { 397 struct usb_line6_toneport *toneport = line6_to_toneport(line6); 398 399 if (toneport_has_led(toneport)) 400 toneport_remove_leds(toneport); 401 } 402 403 404 /* 405 Try to init Toneport device. 406 */ 407 static int toneport_init(struct usb_line6 *line6, 408 const struct usb_device_id *id) 409 { 410 int err; 411 struct usb_line6_toneport *toneport = line6_to_toneport(line6); 412 413 toneport->type = id->driver_info; 414 415 line6->disconnect = line6_toneport_disconnect; 416 line6->startup = toneport_startup; 417 418 /* initialize PCM subsystem: */ 419 err = line6_init_pcm(line6, &toneport_pcm_properties); 420 if (err < 0) 421 return err; 422 423 /* register monitor control: */ 424 err = snd_ctl_add(line6->card, 425 snd_ctl_new1(&toneport_control_monitor, 426 line6->line6pcm)); 427 if (err < 0) 428 return err; 429 430 /* register source select control: */ 431 if (toneport_has_source_select(toneport)) { 432 err = 433 snd_ctl_add(line6->card, 434 snd_ctl_new1(&toneport_control_source, 435 line6->line6pcm)); 436 if (err < 0) 437 return err; 438 } 439 440 line6_read_serial_number(line6, &toneport->serial_number); 441 line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1); 442 443 if (toneport_has_led(toneport)) { 444 err = toneport_init_leds(toneport); 445 if (err < 0) 446 return err; 447 } 448 449 err = toneport_setup(toneport); 450 if (err) 451 return err; 452 453 /* register audio system: */ 454 return snd_card_register(line6->card); 455 } 456 457 #ifdef CONFIG_PM 458 /* 459 Resume Toneport device after reset. 460 */ 461 static int toneport_reset_resume(struct usb_interface *interface) 462 { 463 int err; 464 465 err = toneport_setup(usb_get_intfdata(interface)); 466 if (err) 467 return err; 468 return line6_resume(interface); 469 } 470 #endif 471 472 #define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) 473 #define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) 474 475 /* table of devices that work with this driver */ 476 static const struct usb_device_id toneport_id_table[] = { 477 { LINE6_DEVICE(0x4750), .driver_info = LINE6_GUITARPORT }, 478 { LINE6_DEVICE(0x4153), .driver_info = LINE6_PODSTUDIO_GX }, 479 { LINE6_DEVICE(0x4150), .driver_info = LINE6_PODSTUDIO_UX1 }, 480 { LINE6_IF_NUM(0x4151, 0), .driver_info = LINE6_PODSTUDIO_UX2 }, 481 { LINE6_DEVICE(0x4147), .driver_info = LINE6_TONEPORT_GX }, 482 { LINE6_DEVICE(0x4141), .driver_info = LINE6_TONEPORT_UX1 }, 483 { LINE6_IF_NUM(0x4142, 0), .driver_info = LINE6_TONEPORT_UX2 }, 484 {} 485 }; 486 487 MODULE_DEVICE_TABLE(usb, toneport_id_table); 488 489 static const struct line6_properties toneport_properties_table[] = { 490 [LINE6_GUITARPORT] = { 491 .id = "GuitarPort", 492 .name = "GuitarPort", 493 .capabilities = LINE6_CAP_PCM, 494 .altsetting = 2, /* 1..4 seem to be ok */ 495 /* no control channel */ 496 .ep_audio_r = 0x82, 497 .ep_audio_w = 0x01, 498 }, 499 [LINE6_PODSTUDIO_GX] = { 500 .id = "PODStudioGX", 501 .name = "POD Studio GX", 502 .capabilities = LINE6_CAP_PCM, 503 .altsetting = 2, /* 1..4 seem to be ok */ 504 /* no control channel */ 505 .ep_audio_r = 0x82, 506 .ep_audio_w = 0x01, 507 }, 508 [LINE6_PODSTUDIO_UX1] = { 509 .id = "PODStudioUX1", 510 .name = "POD Studio UX1", 511 .capabilities = LINE6_CAP_PCM, 512 .altsetting = 2, /* 1..4 seem to be ok */ 513 /* no control channel */ 514 .ep_audio_r = 0x82, 515 .ep_audio_w = 0x01, 516 }, 517 [LINE6_PODSTUDIO_UX2] = { 518 .id = "PODStudioUX2", 519 .name = "POD Studio UX2", 520 .capabilities = LINE6_CAP_PCM, 521 .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ 522 /* no control channel */ 523 .ep_audio_r = 0x82, 524 .ep_audio_w = 0x01, 525 }, 526 [LINE6_TONEPORT_GX] = { 527 .id = "TonePortGX", 528 .name = "TonePort GX", 529 .capabilities = LINE6_CAP_PCM, 530 .altsetting = 2, /* 1..4 seem to be ok */ 531 /* no control channel */ 532 .ep_audio_r = 0x82, 533 .ep_audio_w = 0x01, 534 }, 535 [LINE6_TONEPORT_UX1] = { 536 .id = "TonePortUX1", 537 .name = "TonePort UX1", 538 .capabilities = LINE6_CAP_PCM, 539 .altsetting = 2, /* 1..4 seem to be ok */ 540 /* no control channel */ 541 .ep_audio_r = 0x82, 542 .ep_audio_w = 0x01, 543 }, 544 [LINE6_TONEPORT_UX2] = { 545 .id = "TonePortUX2", 546 .name = "TonePort UX2", 547 .capabilities = LINE6_CAP_PCM, 548 .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ 549 /* no control channel */ 550 .ep_audio_r = 0x82, 551 .ep_audio_w = 0x01, 552 }, 553 }; 554 555 /* 556 Probe USB device. 557 */ 558 static int toneport_probe(struct usb_interface *interface, 559 const struct usb_device_id *id) 560 { 561 return line6_probe(interface, id, "Line6-TonePort", 562 &toneport_properties_table[id->driver_info], 563 toneport_init, sizeof(struct usb_line6_toneport)); 564 } 565 566 static struct usb_driver toneport_driver = { 567 .name = KBUILD_MODNAME, 568 .probe = toneport_probe, 569 .disconnect = line6_disconnect, 570 #ifdef CONFIG_PM 571 .suspend = line6_suspend, 572 .resume = line6_resume, 573 .reset_resume = toneport_reset_resume, 574 #endif 575 .id_table = toneport_id_table, 576 }; 577 578 module_usb_driver(toneport_driver); 579 580 MODULE_DESCRIPTION("TonePort USB driver"); 581 MODULE_LICENSE("GPL"); 582