kernel/sound/usb/line6/toneport.c

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