drivers/staging/line6/toneport.c

   1 /*
   2  * Line6 Linux USB driver - 0.9.1beta
   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 <sound/control.h>
  15
  16 #include "audio.h"
  17 #include "capture.h"
  18 #include "driver.h"
  19 #include "playback.h"
  20 #include "toneport.h"
  21
  22 static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2);
  23
  24 #define TONEPORT_PCM_DELAY 1
  25
  26 static struct snd_ratden toneport_ratden = {
  27         .num_min = 44100,
  28         .num_max = 44100,
  29         .num_step = 1,
  30         .den = 1
  31 };
  32
  33 static struct line6_pcm_properties toneport_pcm_properties = {
  34         .snd_line6_playback_hw = {
  35                                   .info = (SNDRV_PCM_INFO_MMAP |
  36                                            SNDRV_PCM_INFO_INTERLEAVED |
  37                                            SNDRV_PCM_INFO_BLOCK_TRANSFER |
  38                                            SNDRV_PCM_INFO_MMAP_VALID |
  39                                            SNDRV_PCM_INFO_PAUSE |
  40 #ifdef CONFIG_PM
  41                                            SNDRV_PCM_INFO_RESUME |
  42 #endif
  43                                            SNDRV_PCM_INFO_SYNC_START),
  44                                   .formats = SNDRV_PCM_FMTBIT_S16_LE,
  45                                   .rates = SNDRV_PCM_RATE_KNOT,
  46                                   .rate_min = 44100,
  47                                   .rate_max = 44100,
  48                                   .channels_min = 2,
  49                                   .channels_max = 2,
  50                                   .buffer_bytes_max = 60000,
  51                                   .period_bytes_min = 64,
  52                                   .period_bytes_max = 8192,
  53                                   .periods_min = 1,
  54                                   .periods_max = 1024},
  55         .snd_line6_capture_hw = {
  56                                  .info = (SNDRV_PCM_INFO_MMAP |
  57                                           SNDRV_PCM_INFO_INTERLEAVED |
  58                                           SNDRV_PCM_INFO_BLOCK_TRANSFER |
  59                                           SNDRV_PCM_INFO_MMAP_VALID |
  60 #ifdef CONFIG_PM
  61                                           SNDRV_PCM_INFO_RESUME |
  62 #endif
  63                                           SNDRV_PCM_INFO_SYNC_START),
  64                                  .formats = SNDRV_PCM_FMTBIT_S16_LE,
  65                                  .rates = SNDRV_PCM_RATE_KNOT,
  66                                  .rate_min = 44100,
  67                                  .rate_max = 44100,
  68                                  .channels_min = 2,
  69                                  .channels_max = 2,
  70                                  .buffer_bytes_max = 60000,
  71                                  .period_bytes_min = 64,
  72                                  .period_bytes_max = 8192,
  73                                  .periods_min = 1,
  74                                  .periods_max = 1024},
  75         .snd_line6_rates = {
  76                             .nrats = 1,
  77                             .rats = &toneport_ratden},
  78         .bytes_per_frame = 4
  79 };
  80
  81 /*
  82         For the led on Guitarport.
  83         Brightness goes from 0x00 to 0x26. Set a value above this to have led
  84         blink.
  85         (void cmd_0x02(byte red, byte green)
  86 */
  87 static int led_red = 0x00;
  88 static int led_green = 0x26;
  89
  90 struct ToneportSourceInfo {
  91         const char *name;
  92         int code;
  93 };
  94
  95 static const struct ToneportSourceInfo toneport_source_info[] = {
  96         {"Microphone", 0x0a01},
  97         {"Line", 0x0801},
  98         {"Instrument", 0x0b01},
  99         {"Inst & Mic", 0x0901}
 100 };
 101
 102 static bool toneport_has_led(short product)
 103 {
 104         return
 105             (product == LINE6_DEVID_GUITARPORT) ||
 106             (product == LINE6_DEVID_TONEPORT_GX);
 107         /* add your device here if you are missing support for the LEDs */
 108 }
 109
 110 static void toneport_update_led(struct device *dev)
 111 {
 112         struct usb_interface *interface = to_usb_interface(dev);
 113         struct usb_line6_toneport *tp = usb_get_intfdata(interface);
 114         struct usb_line6 *line6;
 115
 116         if (!tp)
 117                 return;
 118
 119         line6 = &tp->line6;
 120         if (line6)
 121                 toneport_send_cmd(line6->usbdev, (led_red << 8) | 0x0002,
 122                                   led_green);
 123 }
 124
 125 static ssize_t toneport_set_led_red(struct device *dev,
 126                                     struct device_attribute *attr,
 127                                     const char *buf, size_t count)
 128 {
 129         int retval;
 130         long value;
 131
 132         retval = strict_strtol(buf, 10, &value);
 133         if (retval)
 134                 return retval;
 135
 136         led_red = value;
 137         toneport_update_led(dev);
 138         return count;
 139 }
 140
 141 static ssize_t toneport_set_led_green(struct device *dev,
 142                                       struct device_attribute *attr,
 143                                       const char *buf, size_t count)
 144 {
 145         int retval;
 146         long value;
 147
 148         retval = strict_strtol(buf, 10, &value);
 149         if (retval)
 150                 return retval;
 151
 152         led_green = value;
 153         toneport_update_led(dev);
 154         return count;
 155 }
 156
 157 static DEVICE_ATTR(led_red, S_IWUGO | S_IRUGO, line6_nop_read,
 158                    toneport_set_led_red);
 159 static DEVICE_ATTR(led_green, S_IWUGO | S_IRUGO, line6_nop_read,
 160                    toneport_set_led_green);
 161
 162 static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
 163 {
 164         int ret;
 165
 166         ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
 167                               USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 168                               cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
 169
 170         if (ret < 0) {
 171                 err("send failed (error %d)\n", ret);
 172                 return ret;
 173         }
 174
 175         return 0;
 176 }
 177
 178 /* monitor info callback */
 179 static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol,
 180                                      struct snd_ctl_elem_info *uinfo)
 181 {
 182         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 183         uinfo->count = 1;
 184         uinfo->value.integer.min = 0;
 185         uinfo->value.integer.max = 256;
 186         return 0;
 187 }
 188
 189 /* monitor get callback */
 190 static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol,
 191                                     struct snd_ctl_elem_value *ucontrol)
 192 {
 193         struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
 194         ucontrol->value.integer.value[0] = line6pcm->volume_monitor;
 195         return 0;
 196 }
 197
 198 /* monitor put callback */
 199 static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol,
 200                                     struct snd_ctl_elem_value *ucontrol)
 201 {
 202         struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
 203
 204         if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor)
 205                 return 0;
 206
 207         line6pcm->volume_monitor = ucontrol->value.integer.value[0];
 208
 209         if (line6pcm->volume_monitor > 0)
 210                 line6_pcm_start(line6pcm, MASK_PCM_MONITOR);
 211         else
 212                 line6_pcm_stop(line6pcm, MASK_PCM_MONITOR);
 213
 214         return 1;
 215 }
 216
 217 /* source info callback */
 218 static int snd_toneport_source_info(struct snd_kcontrol *kcontrol,
 219                                     struct snd_ctl_elem_info *uinfo)
 220 {
 221         const int size = ARRAY_SIZE(toneport_source_info);
 222         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 223         uinfo->count = 1;
 224         uinfo->value.enumerated.items = size;
 225
 226         if (uinfo->value.enumerated.item >= size)
 227                 uinfo->value.enumerated.item = size - 1;
 228
 229         strcpy(uinfo->value.enumerated.name,
 230                toneport_source_info[uinfo->value.enumerated.item].name);
 231
 232         return 0;
 233 }
 234
 235 /* source get callback */
 236 static int snd_toneport_source_get(struct snd_kcontrol *kcontrol,
 237                                    struct snd_ctl_elem_value *ucontrol)
 238 {
 239         struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
 240         struct usb_line6_toneport *toneport =
 241             (struct usb_line6_toneport *)line6pcm->line6;
 242         ucontrol->value.enumerated.item[0] = toneport->source;
 243         return 0;
 244 }
 245
 246 /* source put callback */
 247 static int snd_toneport_source_put(struct snd_kcontrol *kcontrol,
 248                                    struct snd_ctl_elem_value *ucontrol)
 249 {
 250         struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
 251         struct usb_line6_toneport *toneport =
 252             (struct usb_line6_toneport *)line6pcm->line6;
 253
 254         if (ucontrol->value.enumerated.item[0] == toneport->source)
 255                 return 0;
 256
 257         toneport->source = ucontrol->value.enumerated.item[0];
 258         toneport_send_cmd(toneport->line6.usbdev,
 259                           toneport_source_info[toneport->source].code, 0x0000);
 260         return 1;
 261 }
 262
 263 static void toneport_start_pcm(unsigned long arg)
 264 {
 265         struct usb_line6_toneport *toneport = (struct usb_line6_toneport *)arg;
 266         struct usb_line6 *line6 = &toneport->line6;
 267         line6_pcm_start(line6->line6pcm, MASK_PCM_MONITOR);
 268 }
 269
 270 /* control definition */
 271 static struct snd_kcontrol_new toneport_control_monitor = {
 272         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 273         .name = "Monitor Playback Volume",
 274         .index = 0,
 275         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 276         .info = snd_toneport_monitor_info,
 277         .get = snd_toneport_monitor_get,
 278         .put = snd_toneport_monitor_put
 279 };
 280
 281 /* source selector definition */
 282 static struct snd_kcontrol_new toneport_control_source = {
 283         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 284         .name = "PCM Capture Source",
 285         .index = 0,
 286         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 287         .info = snd_toneport_source_info,
 288         .get = snd_toneport_source_get,
 289         .put = snd_toneport_source_put
 290 };
 291
 292 /*
 293         Toneport destructor.
 294 */
 295 static void toneport_destruct(struct usb_interface *interface)
 296 {
 297         struct usb_line6_toneport *toneport = usb_get_intfdata(interface);
 298         struct usb_line6 *line6;
 299
 300         if (toneport == NULL)
 301                 return;
 302         line6 = &toneport->line6;
 303         if (line6 == NULL)
 304                 return;
 305         line6_cleanup_audio(line6);
 306 }
 307
 308 /*
 309         Setup Toneport device.
 310 */
 311 static void toneport_setup(struct usb_line6_toneport *toneport)
 312 {
 313         int ticks;
 314         struct usb_line6 *line6 = &toneport->line6;
 315         struct usb_device *usbdev = line6->usbdev;
 316
 317         /* sync time on device with host: */
 318         ticks = (int)get_seconds();
 319         line6_write_data(line6, 0x80c6, &ticks, 4);
 320
 321         /* enable device: */
 322         toneport_send_cmd(usbdev, 0x0301, 0x0000);
 323
 324         /* initialize source select: */
 325         switch (usbdev->descriptor.idProduct) {
 326         case LINE6_DEVID_TONEPORT_UX1:
 327         case LINE6_DEVID_PODSTUDIO_UX1:
 328                 toneport_send_cmd(usbdev,
 329                                   toneport_source_info[toneport->source].code,
 330                                   0x0000);
 331         }
 332
 333         if (toneport_has_led(usbdev->descriptor.idProduct))
 334                 toneport_update_led(&usbdev->dev);
 335 }
 336
 337 /*
 338          Try to init Toneport device.
 339 */
 340 static int toneport_try_init(struct usb_interface *interface,
 341                              struct usb_line6_toneport *toneport)
 342 {
 343         int err;
 344         struct usb_line6 *line6 = &toneport->line6;
 345         struct usb_device *usbdev = line6->usbdev;
 346
 347         if ((interface == NULL) || (toneport == NULL))
 348                 return -ENODEV;
 349
 350         /* initialize audio system: */
 351         err = line6_init_audio(line6);
 352         if (err < 0)
 353                 return err;
 354
 355         /* initialize PCM subsystem: */
 356         err = line6_init_pcm(line6, &toneport_pcm_properties);
 357         if (err < 0)
 358                 return err;
 359
 360         /* register monitor control: */
 361         err = snd_ctl_add(line6->card,
 362                           snd_ctl_new1(&toneport_control_monitor,
 363                                        line6->line6pcm));
 364         if (err < 0)
 365                 return err;
 366
 367         /* register source select control: */
 368         switch (usbdev->descriptor.idProduct) {
 369         case LINE6_DEVID_TONEPORT_UX1:
 370         case LINE6_DEVID_PODSTUDIO_UX1:
 371                 err =
 372                     snd_ctl_add(line6->card,
 373                                 snd_ctl_new1(&toneport_control_source,
 374                                              line6->line6pcm));
 375                 if (err < 0)
 376                         return err;
 377         }
 378
 379         /* register audio system: */
 380         err = line6_register_audio(line6);
 381         if (err < 0)
 382                 return err;
 383
 384         line6_read_serial_number(line6, &toneport->serial_number);
 385         line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1);
 386
 387         if (toneport_has_led(usbdev->descriptor.idProduct)) {
 388                 CHECK_RETURN(device_create_file
 389                              (&interface->dev, &dev_attr_led_red));
 390                 CHECK_RETURN(device_create_file
 391                              (&interface->dev, &dev_attr_led_green));
 392         }
 393
 394         toneport_setup(toneport);
 395
 396         init_timer(&toneport->timer);
 397         toneport->timer.expires = jiffies + TONEPORT_PCM_DELAY * HZ;
 398         toneport->timer.function = toneport_start_pcm;
 399         toneport->timer.data = (unsigned long)toneport;
 400         add_timer(&toneport->timer);
 401
 402         return 0;
 403 }
 404
 405 /*
 406          Init Toneport device (and clean up in case of failure).
 407 */
 408 int line6_toneport_init(struct usb_interface *interface,
 409                         struct usb_line6_toneport *toneport)
 410 {
 411         int err = toneport_try_init(interface, toneport);
 412
 413         if (err < 0)
 414                 toneport_destruct(interface);
 415
 416         return err;
 417 }
 418
 419 /*
 420         Resume Toneport device after reset.
 421 */
 422 void line6_toneport_reset_resume(struct usb_line6_toneport *toneport)
 423 {
 424         toneport_setup(toneport);
 425 }
 426
 427 /*
 428         Toneport device disconnected.
 429 */
 430 void line6_toneport_disconnect(struct usb_interface *interface)
 431 {
 432         struct usb_line6_toneport *toneport;
 433
 434         if (interface == NULL)
 435                 return;
 436
 437         toneport = usb_get_intfdata(interface);
 438         del_timer_sync(&toneport->timer);
 439
 440         if (toneport_has_led(toneport->line6.usbdev->descriptor.idProduct)) {
 441                 device_remove_file(&interface->dev, &dev_attr_led_red);
 442                 device_remove_file(&interface->dev, &dev_attr_led_green);
 443         }
 444
 445         if (toneport != NULL) {
 446                 struct snd_line6_pcm *line6pcm = toneport->line6.line6pcm;
 447
 448                 if (line6pcm != NULL) {
 449                         line6_pcm_stop(line6pcm, MASK_PCM_MONITOR);
 450                         line6_pcm_disconnect(line6pcm);
 451                 }
 452         }
 453
 454         toneport_destruct(interface);
 455 }