apps/plugins/oscilloscope.c

   1 /***************************************************************************
   2 *             __________               __   ___.
   3 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 *                     \/            \/     \/    \/            \/
   8 * $Id$
   9 *
  10 * Oscilloscope, with many different modes of operation.
  11 *
  12 * Copyright (C) 2004-2006 Jens Arnold
  13 *
  14 * This program is free software; you can redistribute it and/or
  15 * modify it under the terms of the GNU General Public License
  16 * as published by the Free Software Foundation; either version 2
  17 * of the License, or (at your option) any later version.
  18 *
  19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20 * KIND, either express or implied.
  21 *
  22 ****************************************************************************/
  23
  24 #include "plugin.h"
  25 #include "lib/helper.h"
  26 #include "lib/pluginlib_exit.h"
  27
  28 #include "lib/xlcd.h"
  29 #include "lib/configfile.h"
  30
  31
  32
  33 /* variable button definitions */
  34 #if CONFIG_KEYPAD == RECORDER_PAD
  35 #define OSCILLOSCOPE_QUIT         BUTTON_OFF
  36 #define OSCILLOSCOPE_DRAWMODE     BUTTON_F1
  37 #define OSCILLOSCOPE_ADVMODE      BUTTON_F2
  38 #define OSCILLOSCOPE_ORIENTATION  BUTTON_F3
  39 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
  40 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  41 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
  42 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
  43 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
  44
  45 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  46 #define OSCILLOSCOPE_QUIT         BUTTON_OFF
  47 #define OSCILLOSCOPE_DRAWMODE     BUTTON_F1
  48 #define OSCILLOSCOPE_ADVMODE      BUTTON_F2
  49 #define OSCILLOSCOPE_ORIENTATION  BUTTON_F3
  50 #define OSCILLOSCOPE_PAUSE        BUTTON_SELECT
  51 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  52 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
  53 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
  54 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
  55
  56 #elif CONFIG_KEYPAD == ONDIO_PAD
  57 #define OSCILLOSCOPE_QUIT         BUTTON_OFF
  58 #define OSCILLOSCOPE_DRAWMODE_PRE BUTTON_MENU
  59 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_MENU | BUTTON_REL)
  60 #define OSCILLOSCOPE_ADVMODE      (BUTTON_MENU | BUTTON_RIGHT)
  61 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_MENU | BUTTON_LEFT)
  62 #define OSCILLOSCOPE_PAUSE        (BUTTON_MENU | BUTTON_OFF)
  63 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  64 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
  65 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
  66 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
  67
  68 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
  69 #define OSCILLOSCOPE_QUIT         BUTTON_OFF
  70 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
  71 #define OSCILLOSCOPE_ADVMODE      BUTTON_MODE
  72 #define OSCILLOSCOPE_ORIENTATION  BUTTON_REC
  73 #define OSCILLOSCOPE_PAUSE        BUTTON_ON
  74 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  75 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
  76 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
  77 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
  78 #define OSCILLOSCOPE_RC_QUIT      BUTTON_RC_STOP
  79
  80 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  81       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  82 #define OSCILLOSCOPE_QUIT         (BUTTON_SELECT | BUTTON_MENU)
  83 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_SELECT | BUTTON_PLAY)
  84 #define OSCILLOSCOPE_ADVMODE      (BUTTON_SELECT | BUTTON_RIGHT)
  85 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_SELECT | BUTTON_LEFT)
  86 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
  87 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  88 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
  89 #define OSCILLOSCOPE_VOL_UP       BUTTON_SCROLL_FWD
  90 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_SCROLL_BACK
  91
  92 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  93 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
  94 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
  95 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
  96 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
  97 #define OSCILLOSCOPE_PAUSE        BUTTON_A
  98 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
  99 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 100 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 101 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 102
 103 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 104 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 105 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 106 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
 107 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 108 #define OSCILLOSCOPE_PAUSE        BUTTON_REC
 109 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 110 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 111 #define OSCILLOSCOPE_VOL_UP       BUTTON_SCROLL_FWD
 112 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_SCROLL_BACK
 113
 114 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 115 #define OSCILLOSCOPE_QUIT         (BUTTON_HOME|BUTTON_REPEAT)
 116 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_SELECT | BUTTON_REL)
 117 #define OSCILLOSCOPE_ADVMODE      (BUTTON_SELECT | BUTTON_RIGHT)
 118 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_SELECT | BUTTON_LEFT)
 119 #define OSCILLOSCOPE_PAUSE        BUTTON_UP
 120 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 121 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 122 #define OSCILLOSCOPE_VOL_UP       BUTTON_SCROLL_FWD
 123 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_SCROLL_BACK
 124
 125 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
 126 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 127 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 128 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
 129 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 130 #define OSCILLOSCOPE_PAUSE        BUTTON_REC
 131 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 132 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 133 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 134 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 135
 136 #elif (CONFIG_KEYPAD == SANSA_CLIP_PAD)
 137 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 138 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 139 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
 140 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 141 #define OSCILLOSCOPE_PAUSE        BUTTON_HOME
 142 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 143 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 144 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 145 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 146
 147 #elif (CONFIG_KEYPAD == SANSA_M200_PAD)
 148 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 149 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_SELECT | BUTTON_REL)
 150 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
 151 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 152 #define OSCILLOSCOPE_PAUSE        (BUTTON_SELECT | BUTTON_UP)
 153 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 154 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 155 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 156 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 157
 158 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 159 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 160 #define OSCILLOSCOPE_DRAWMODE_PRE BUTTON_SELECT
 161 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_SELECT | BUTTON_REL)
 162 #define OSCILLOSCOPE_ADVMODE      BUTTON_REC
 163 #define OSCILLOSCOPE_ORIENTATION_PRE BUTTON_SELECT
 164 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_SELECT | BUTTON_REPEAT)
 165 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 166 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 167 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 168 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 169 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 170
 171 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 172 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 173 #define OSCILLOSCOPE_DRAWMODE_PRE BUTTON_REW
 174 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_REW | BUTTON_REL)
 175 #define OSCILLOSCOPE_ADVMODE      BUTTON_FF
 176 #define OSCILLOSCOPE_ORIENTATION_PRE BUTTON_REW
 177 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_REW | BUTTON_REPEAT)
 178 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 179 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 180 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 181 #define OSCILLOSCOPE_VOL_UP       BUTTON_SCROLL_UP
 182 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_SCROLL_DOWN
 183
 184 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 185 #define OSCILLOSCOPE_QUIT         BUTTON_BACK
 186 #define OSCILLOSCOPE_DRAWMODE     BUTTON_PREV
 187 #define OSCILLOSCOPE_ADVMODE      BUTTON_NEXT
 188 #define OSCILLOSCOPE_ORIENTATION  BUTTON_MENU
 189 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 190 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 191 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 192 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 193 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 194
 195 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 196 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 197 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 198 #define OSCILLOSCOPE_ADVMODE      BUTTON_MENU
 199 #define OSCILLOSCOPE_ORIENTATION  BUTTON_PLAY
 200 #define OSCILLOSCOPE_PAUSE        BUTTON_DISPLAY
 201 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 202 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 203 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 204 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 205
 206 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 207 #define OSCILLOSCOPE_QUIT         BUTTON_RC_REC
 208 #define OSCILLOSCOPE_DRAWMODE_PRE BUTTON_RC_MODE
 209 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_RC_MODE|BUTTON_REL)
 210 #define OSCILLOSCOPE_ADVMODE      BUTTON_RC_MENU
 211 #define OSCILLOSCOPE_ORIENTATION_PRE BUTTON_RC_MODE
 212 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_RC_MODE|BUTTON_REPEAT)
 213 #define OSCILLOSCOPE_PAUSE        BUTTON_RC_PLAY
 214 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RC_FF
 215 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_RC_REW
 216 #define OSCILLOSCOPE_VOL_UP       BUTTON_RC_VOL_UP
 217 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_RC_VOL_DOWN
 218
 219 #elif CONFIG_KEYPAD == COWON_D2_PAD
 220 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 221 #define OSCILLOSCOPE_VOL_UP       BUTTON_PLUS
 222 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_MINUS
 223
 224 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 225 #define OSCILLOSCOPE_QUIT         BUTTON_BACK
 226 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 227 #define OSCILLOSCOPE_ADVMODE      BUTTON_CUSTOM
 228 #define OSCILLOSCOPE_ORIENTATION  BUTTON_MENU
 229 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 230 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 231 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 232 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 233 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 234
 235 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 236 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 237 #define OSCILLOSCOPE_DRAWMODE     BUTTON_MENU
 238 #define OSCILLOSCOPE_ADVMODE      BUTTON_VIEW
 239 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 240 #define OSCILLOSCOPE_PAUSE        BUTTON_SELECT
 241 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 242 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 243 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 244 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 245
 246 #elif CONFIG_KEYPAD == PHILIPS_HDD6330_PAD
 247 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 248 #define OSCILLOSCOPE_DRAWMODE     BUTTON_MENU
 249 #define OSCILLOSCOPE_ADVMODE      BUTTON_RIGHT
 250 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 251 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 252 #define OSCILLOSCOPE_SPEED_UP     BUTTON_NEXT
 253 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_PREV
 254 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 255 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 256
 257 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 258 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 259 #define OSCILLOSCOPE_DRAWMODE     BUTTON_MENU
 260 #define OSCILLOSCOPE_ADVMODE      BUTTON_RIGHT
 261 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 262 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 263 #define OSCILLOSCOPE_SPEED_UP     BUTTON_NEXT
 264 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_PREV
 265 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 266 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 267
 268 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 269 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 270 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 271 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 272
 273 #elif CONFIG_KEYPAD == ONDAVX777_PAD
 274 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 275
 276 #elif CONFIG_KEYPAD == MROBE500_PAD
 277 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 278
 279 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 280 #define OSCILLOSCOPE_QUIT         BUTTON_REC
 281 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_PLAY|BUTTON_LEFT)
 282 #define OSCILLOSCOPE_ADVMODE      (BUTTON_PLAY|BUTTON_RIGHT)
 283 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_PLAY|BUTTON_UP)
 284 #define OSCILLOSCOPE_PAUSE        (BUTTON_PLAY|BUTTON_DOWN)
 285 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 286 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 287 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 288 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 289
 290 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 291 #define OSCILLOSCOPE_QUIT         BUTTON_REC
 292 #define OSCILLOSCOPE_DRAWMODE     BUTTON_MENU
 293 #define OSCILLOSCOPE_ADVMODE      BUTTON_CANCEL
 294 #define OSCILLOSCOPE_ORIENTATION  BUTTON_OK
 295 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 296 #define OSCILLOSCOPE_SPEED_UP     BUTTON_PREV
 297 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_NEXT
 298 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 299 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 300
 301 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 302 #define OSCILLOSCOPE_QUIT         (BUTTON_REC | BUTTON_PLAY)
 303 #define OSCILLOSCOPE_DRAWMODE     BUTTON_FUNC
 304 #define OSCILLOSCOPE_ADVMODE      BUTTON_REC
 305 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_FUNC|BUTTON_REPEAT)
 306 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 307 #define OSCILLOSCOPE_SPEED_UP     BUTTON_FF
 308 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_REW
 309 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 310 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 311
 312 #elif CONFIG_KEYPAD == MPIO_HD300_PAD
 313 #define OSCILLOSCOPE_QUIT         (BUTTON_MENU | BUTTON_REPEAT)
 314 #define OSCILLOSCOPE_DRAWMODE     BUTTON_ENTER
 315 #define OSCILLOSCOPE_ADVMODE      BUTTON_REC
 316 #define OSCILLOSCOPE_ORIENTATION  BUTTON_MENU
 317 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAY
 318 #define OSCILLOSCOPE_SPEED_UP     BUTTON_FF
 319 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_REW
 320 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 321 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 322
 323 #elif CONFIG_KEYPAD == SANSA_FUZEPLUS_PAD
 324 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 325 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 326 #define OSCILLOSCOPE_ADVMODE      BUTTON_BACK
 327 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_BACK|BUTTON_REPEAT)
 328 #define OSCILLOSCOPE_PAUSE        BUTTON_PLAYPAUSE
 329 #define OSCILLOSCOPE_SPEED_UP     BUTTON_LEFT
 330 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_RIGHT
 331 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 332 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 333
 334 #elif (CONFIG_KEYPAD == SANSA_CONNECT_PAD)
 335 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 336 #define OSCILLOSCOPE_DRAWMODE     BUTTON_SELECT
 337 #define OSCILLOSCOPE_ADVMODE      BUTTON_DOWN
 338 #define OSCILLOSCOPE_ORIENTATION  BUTTON_UP
 339 #define OSCILLOSCOPE_PAUSE        BUTTON_NEXT
 340 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 341 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 342 #define OSCILLOSCOPE_VOL_UP       BUTTON_VOL_UP
 343 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_VOL_DOWN
 344
 345 #elif (CONFIG_KEYPAD == SAMSUNG_YPR0_PAD)
 346 #define OSCILLOSCOPE_QUIT         BUTTON_BACK
 347 #define OSCILLOSCOPE_DRAWMODE     BUTTON_USER
 348 #define OSCILLOSCOPE_ADVMODE      BUTTON_MENU
 349 #define OSCILLOSCOPE_ORIENTATION  BUTTON_POWER
 350 #define OSCILLOSCOPE_PAUSE        BUTTON_SELECT
 351 #define OSCILLOSCOPE_SPEED_UP     BUTTON_RIGHT
 352 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_LEFT
 353 #define OSCILLOSCOPE_VOL_UP       BUTTON_UP
 354 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_DOWN
 355
 356 #elif (CONFIG_KEYPAD == HM60X_PAD)
 357 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 358 #define OSCILLOSCOPE_DRAWMODE     (BUTTON_POWER | BUTTON_SELECT)
 359 #define OSCILLOSCOPE_ADVMODE      (BUTTON_POWER | BUTTON_RIGHT)
 360 #define OSCILLOSCOPE_ORIENTATION  (BUTTON_POWER | BUTTON_LEFT)
 361 #define OSCILLOSCOPE_PAUSE        BUTTON_SELECT
 362 #define OSCILLOSCOPE_SPEED_UP     BUTTON_UP
 363 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_DOWN
 364 #define OSCILLOSCOPE_VOL_UP       BUTTON_RIGHT
 365 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_LEFT
 366
 367 #elif (CONFIG_KEYPAD == HM801_PAD)
 368 #define OSCILLOSCOPE_QUIT         BUTTON_POWER
 369 #define OSCILLOSCOPE_DRAWMODE     BUTTON_PREV
 370 #define OSCILLOSCOPE_ADVMODE      BUTTON_NEXT
 371 #define OSCILLOSCOPE_ORIENTATION  BUTTON_PLAY
 372 #define OSCILLOSCOPE_PAUSE        BUTTON_SELECT
 373 #define OSCILLOSCOPE_SPEED_UP     BUTTON_UP
 374 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_DOWN
 375 #define OSCILLOSCOPE_VOL_UP       BUTTON_RIGHT
 376 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_LEFT
 377
 378 #else
 379 #error No keymap defined!
 380 #endif
 381
 382 #ifdef HAVE_TOUCHSCREEN
 383 #ifndef OSCILLOSCOPE_QUIT
 384 #define OSCILLOSCOPE_QUIT         BUTTON_TOPLEFT
 385 #endif
 386 #ifndef OSCILLOSCOPE_DRAWMODE
 387 #define OSCILLOSCOPE_DRAWMODE     BUTTON_TOPMIDDLE
 388 #endif
 389 #ifndef OSCILLOSCOPE_ADVMODE
 390 #define OSCILLOSCOPE_ADVMODE      BUTTON_BOTTOMMIDDLE
 391 #endif
 392 #ifndef OSCILLOSCOPE_ORIENTATION
 393 #define OSCILLOSCOPE_ORIENTATION  BUTTON_BOTTOMLEFT
 394 #endif
 395 #ifndef OSCILLOSCOPE_PAUSE
 396 #define OSCILLOSCOPE_PAUSE        BUTTON_CENTER
 397 #endif
 398 #ifndef OSCILLOSCOPE_SPEED_UP
 399 #define OSCILLOSCOPE_SPEED_UP     BUTTON_MIDRIGHT
 400 #endif
 401 #ifndef OSCILLOSCOPE_SPEED_DOWN
 402 #define OSCILLOSCOPE_SPEED_DOWN   BUTTON_MIDLEFT
 403 #endif
 404 #ifndef OSCILLOSCOPE_VOL_UP
 405 #define OSCILLOSCOPE_VOL_UP       BUTTON_TOPRIGHT
 406 #endif
 407 #ifndef OSCILLOSCOPE_VOL_DOWN
 408 #define OSCILLOSCOPE_VOL_DOWN     BUTTON_BOTTOMRIGHT
 409 #endif
 410 #endif
 411
 412 /* colours */
 413 #if LCD_DEPTH > 1
 414 #ifdef HAVE_LCD_COLOR
 415 #define BACKG_COLOR  LCD_BLACK
 416 #define GRAPH_COLOR  LCD_RGBPACK(128, 255, 0)
 417 #define CURSOR_COLOR LCD_RGBPACK(255, 0, 0)
 418 #else
 419 #define BACKG_COLOR  LCD_WHITE
 420 #define GRAPH_COLOR  LCD_BLACK
 421 #define CURSOR_COLOR LCD_DARKGRAY
 422 #endif
 423 #endif
 424
 425 enum { DRAW_FILLED, DRAW_LINE, DRAW_PIXEL, MAX_DRAW };
 426 enum { ADV_SCROLL, ADV_WRAP, MAX_ADV };
 427 enum { OSC_HORIZ, OSC_VERT, MAX_OSC };
 428
 429 #define CFGFILE_VERSION 0     /* Current config file version */
 430 #define CFGFILE_MINVERSION 0  /* Minimum config file version to accept */
 431
 432
 433 #define MAX_PEAK 0x8000
 434
 435 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 436 #define mas_codec_readreg(x) rand()%MAX_PEAK
 437 #endif
 438
 439 /* global variables */
 440
 441 /* settings */
 442 struct osc_config {
 443     int delay;     /* in ticks */
 444     int draw;
 445     int advance;
 446     int orientation;
 447 };
 448
 449 struct osc_config osc_disk = { 2, DRAW_FILLED, ADV_SCROLL, OSC_HORIZ };
 450 struct osc_config osc;       /* running config */
 451
 452 static const char cfg_filename[] =  "oscilloscope.cfg";
 453 static char *draw_str[3]        = { "filled", "line", "pixel" };
 454 static char *advance_str[2]     = { "scroll", "wrap" };
 455 static char *orientation_str[2] = { "horizontal", "vertical" };
 456
 457 struct configdata disk_config[] = {
 458    { TYPE_INT,  1, 99, { .int_p = &osc_disk.delay }, "delay", NULL },
 459    { TYPE_ENUM, 0, MAX_DRAW, { .int_p = &osc_disk.draw }, "draw", draw_str },
 460    { TYPE_ENUM, 0, MAX_ADV, { .int_p = &osc_disk.advance }, "advance",
 461      advance_str },
 462    { TYPE_ENUM, 0, MAX_OSC, { .int_p = &osc_disk.orientation }, "orientation",
 463      orientation_str }
 464 };
 465
 466
 467 long last_tick = 0;  /* time of last drawing */
 468 int last_pos = 0;    /* last x or y drawing position. Reset for aspect switch. */
 469 int last_left;       /* last channel values */
 470 int last_right;
 471
 472 unsigned char message[16]; /* message to display */
 473 bool displaymsg = false;
 474 int font_height = 8;
 475
 476 /* implementation */
 477
 478 static void anim_horizontal(int cur_left, int cur_right)
 479 {
 480     int cur_x, x;
 481     int left, right, dl, dr;
 482     long cur_tick = *rb->current_tick;
 483     long d = (cur_tick - last_tick) / osc.delay;
 484     bool full_update = false;
 485
 486     if (d == 0)  /* too early, bail out */
 487         return;
 488
 489     last_tick = cur_tick;
 490
 491     if (d > HZ) /* first call or too much delay, (re)start */
 492     {
 493         last_left = cur_left;
 494         last_right = cur_right;
 495         return;
 496     }
 497     cur_x = last_pos + d;
 498
 499     if (cur_x >= LCD_WIDTH)
 500     {
 501         if (osc.advance == ADV_SCROLL)
 502         {
 503             int shift = cur_x - (LCD_WIDTH-1);
 504             xlcd_scroll_left(shift);
 505             full_update = true;
 506             cur_x -= shift;
 507             last_pos -= shift;
 508         }
 509         else
 510         {
 511             cur_x -= LCD_WIDTH;
 512         }
 513     }
 514     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 515
 516     if (cur_x > last_pos)
 517     {
 518         rb->lcd_fillrect(last_pos + 1, 0, d, LCD_HEIGHT);
 519     }
 520     else
 521     {
 522         rb->lcd_fillrect(last_pos + 1, 0, LCD_WIDTH - last_pos, LCD_HEIGHT);
 523         rb->lcd_fillrect(0, 0, cur_x + 1, LCD_HEIGHT);
 524     }
 525     rb->lcd_set_drawmode(DRMODE_SOLID);
 526
 527     switch (osc.draw)
 528     {
 529         case DRAW_FILLED:
 530             left = last_left;
 531             right = last_right;
 532             dl = (cur_left  - left)  / d;
 533             dr = (cur_right - right) / d;
 534
 535             for (x = last_pos + 1; d > 0; x++, d--)
 536             {
 537                 if (x == LCD_WIDTH)
 538                     x = 0;
 539
 540                 left  += dl;
 541                 right += dr;
 542
 543                 rb->lcd_vline(x, LCD_HEIGHT/2-1,
 544                               LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * left) >> 16));
 545                 rb->lcd_vline(x, LCD_HEIGHT/2+1,
 546                               LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * right) >> 16));
 547             }
 548             break;
 549
 550         case DRAW_LINE:
 551             if (cur_x > last_pos)
 552             {
 553                 rb->lcd_drawline(
 554                     last_pos, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * last_left) >> 16),
 555                     cur_x, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * cur_left) >> 16)
 556                 );
 557                 rb->lcd_drawline(
 558                     last_pos, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * last_right) >> 16),
 559                     cur_x, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * cur_right) >> 16)
 560                 );
 561             }
 562             else
 563             {
 564                 left  = last_left
 565                       + (LCD_WIDTH - last_pos) * (last_left - cur_left) / d;
 566                 right = last_right
 567                       + (LCD_WIDTH - last_pos) * (last_right - cur_right) / d;
 568
 569                 rb->lcd_drawline(
 570                     last_pos, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * last_left) >> 16),
 571                     LCD_WIDTH, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * left) >> 16)
 572                 );
 573                 rb->lcd_drawline(
 574                     last_pos, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * last_right) >> 16),
 575                     LCD_WIDTH, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * right) >> 16)
 576                 );
 577                 if (cur_x > 0)
 578                 {
 579                     rb->lcd_drawline(
 580                         0, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * left) >> 16),
 581                         cur_x, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * cur_left) >> 16)
 582                     );
 583                     rb->lcd_drawline(
 584                         0, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * right) >> 16),
 585                         cur_x, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * cur_right) >> 16)
 586                     );
 587                 }
 588             }
 589             break;
 590
 591         case DRAW_PIXEL:
 592             left = last_left;
 593             right = last_right;
 594             dl = (cur_left - left) / d;
 595             dr = (cur_right - right) / d;
 596
 597             for (x = last_pos + 1; d > 0; x++, d--)
 598             {
 599                 if (x == LCD_WIDTH)
 600                     x = 0;
 601
 602                 left  += dl;
 603                 right += dr;
 604
 605                 rb->lcd_drawpixel(x, LCD_HEIGHT/2-1 - (((LCD_HEIGHT-2) * left) >> 16));
 606                 rb->lcd_drawpixel(x, LCD_HEIGHT/2+1 + (((LCD_HEIGHT-2) * right) >> 16));
 607             }
 608             break;
 609
 610     }
 611     last_left  = cur_left;
 612     last_right = cur_right;
 613
 614     if (displaymsg)
 615     {
 616         int width;
 617
 618         rb->lcd_getstringsize(message, &width, NULL);
 619         last_pos -= width - 1;
 620         rb->lcd_putsxy(last_pos, 0, message);
 621         displaymsg = false;
 622
 623         if (last_pos < 0)
 624             last_pos = 0;
 625     }
 626
 627     if (full_update)
 628     {
 629         rb->lcd_update();
 630     }
 631     else
 632     {
 633 #if LCD_DEPTH > 1                 /* cursor bar */
 634         rb->lcd_set_foreground(CURSOR_COLOR);
 635         rb->lcd_vline(cur_x + 1, 0, LCD_HEIGHT-1);
 636         rb->lcd_set_foreground(GRAPH_COLOR);
 637 #else
 638         rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
 639         rb->lcd_vline(cur_x + 1, 0, LCD_HEIGHT-1);
 640         rb->lcd_set_drawmode(DRMODE_SOLID);
 641 #endif
 642
 643         if (cur_x > last_pos)
 644         {
 645             rb->lcd_update_rect(last_pos, 0, cur_x - last_pos + 2, LCD_HEIGHT);
 646         }
 647         else
 648         {
 649             rb->lcd_update_rect(last_pos, 0, LCD_WIDTH - last_pos, LCD_HEIGHT);
 650             rb->lcd_update_rect(0, 0, cur_x + 2, LCD_HEIGHT);
 651         }
 652     }
 653     last_pos = cur_x;
 654 }
 655
 656 static void anim_vertical(int cur_left, int cur_right)
 657 {
 658     int cur_y, y;
 659     int left, right, dl, dr;
 660     long cur_tick = *rb->current_tick;
 661     long d = (cur_tick - last_tick) / osc.delay;
 662     bool full_update = false;
 663
 664     if (d == 0)  /* too early, bail out */
 665         return;
 666
 667     last_tick = cur_tick;
 668
 669     if (d > HZ) /* first call or too much delay, (re)start */
 670     {
 671         last_left = cur_left;
 672         last_right = cur_right;
 673         return;
 674     }
 675     cur_y = last_pos + d;
 676
 677     if (cur_y >= LCD_HEIGHT)
 678     {
 679         if (osc.advance == ADV_SCROLL)
 680         {
 681             int shift = cur_y - (LCD_HEIGHT-1);
 682             xlcd_scroll_up(shift);
 683             full_update = true;
 684             cur_y -= shift;
 685             last_pos -= shift;
 686         }
 687         else
 688         {
 689             cur_y -= LCD_HEIGHT;
 690         }
 691     }
 692     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 693
 694     if (cur_y > last_pos)
 695     {
 696         rb->lcd_fillrect(0, last_pos + 1, LCD_WIDTH, d);
 697     }
 698     else
 699     {
 700         rb->lcd_fillrect(0, last_pos + 1, LCD_WIDTH, LCD_HEIGHT - last_pos);
 701         rb->lcd_fillrect(0, 0, LCD_WIDTH, cur_y + 1);
 702     }
 703     rb->lcd_set_drawmode(DRMODE_SOLID);
 704
 705     switch (osc.draw)
 706     {
 707         case DRAW_FILLED:
 708             left = last_left;
 709             right = last_right;
 710             dl = (cur_left  - left)  / d;
 711             dr = (cur_right - right) / d;
 712
 713             for (y = last_pos + 1; d > 0; y++, d--)
 714             {
 715                 if (y == LCD_HEIGHT)
 716                     y = 0;
 717
 718                 left  += dl;
 719                 right += dr;
 720
 721                 rb->lcd_hline(LCD_WIDTH/2-1,
 722                               LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * left) >> 16), y);
 723                 rb->lcd_hline(LCD_WIDTH/2+1,
 724                               LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * right) >> 16), y);
 725             }
 726             break;
 727
 728         case DRAW_LINE:
 729             if (cur_y > last_pos)
 730             {
 731                 rb->lcd_drawline(
 732                     LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * last_left) >> 16), last_pos,
 733                     LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * cur_left) >> 16), cur_y
 734                 );
 735                 rb->lcd_drawline(
 736                     LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * last_right) >> 16), last_pos,
 737                     LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * cur_right) >> 16), cur_y
 738                 );
 739             }
 740             else
 741             {
 742                 left  = last_left
 743                       + (LCD_HEIGHT - last_pos) * (last_left - cur_left) / d;
 744                 right = last_right
 745                       + (LCD_HEIGHT - last_pos) * (last_right - cur_right) / d;
 746
 747                 rb->lcd_drawline(
 748                     LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * last_left) >> 16), last_pos,
 749                     LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * left) >> 16), LCD_HEIGHT
 750                 );
 751                 rb->lcd_drawline(
 752                     LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * last_right) >> 16), last_pos,
 753                     LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * right) >> 16), LCD_HEIGHT
 754                 );
 755                 if (cur_y > 0)
 756                 {
 757                     rb->lcd_drawline(
 758                         LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * left) >> 16), 0,
 759                         LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * cur_left) >> 16), cur_y
 760                     );
 761                     rb->lcd_drawline(
 762                         LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * right) >> 16), 0,
 763                         LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * cur_right) >> 16), cur_y
 764                     );
 765                 }
 766             }
 767             break;
 768
 769         case DRAW_PIXEL:
 770             left = last_left;
 771             right = last_right;
 772             dl = (cur_left - left) / d;
 773             dr = (cur_right - right) / d;
 774
 775             for (y = last_pos + 1; d > 0; y++, d--)
 776             {
 777                 if (y == LCD_HEIGHT)
 778                     y = 0;
 779
 780                 left  += dl;
 781                 right += dr;
 782
 783                 rb->lcd_drawpixel(LCD_WIDTH/2-1 - (((LCD_WIDTH-2) * left) >> 16), y);
 784                 rb->lcd_drawpixel(LCD_WIDTH/2+1 + (((LCD_WIDTH-2) * right) >> 16), y);
 785             }
 786             break;
 787
 788     }
 789     last_left  = cur_left;
 790     last_right = cur_right;
 791
 792     if (displaymsg)
 793     {
 794         last_pos -= font_height - 1;
 795         rb->lcd_putsxy(0, last_pos, message);
 796         displaymsg = false;
 797
 798         if (last_pos < 0)
 799             last_pos = 0;
 800     }
 801
 802     if (full_update)
 803     {
 804         rb->lcd_update();
 805     }
 806     else
 807     {
 808 #if LCD_DEPTH > 1               /* cursor bar */
 809         rb->lcd_set_foreground(CURSOR_COLOR);
 810         rb->lcd_hline(0, LCD_WIDTH-1, cur_y + 1);
 811         rb->lcd_set_foreground(GRAPH_COLOR);
 812 #else
 813         rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
 814         rb->lcd_hline(0, LCD_WIDTH-1, cur_y + 1);
 815         rb->lcd_set_drawmode(DRMODE_SOLID);
 816 #endif
 817
 818         if (cur_y > last_pos)
 819         {
 820             rb->lcd_update_rect(0, last_pos, LCD_WIDTH, cur_y - last_pos + 2);
 821         }
 822         else
 823         {
 824             rb->lcd_update_rect(0, last_pos, LCD_WIDTH, LCD_HEIGHT - last_pos);
 825             rb->lcd_update_rect(0, 0, LCD_WIDTH, cur_y + 2);
 826         }
 827     }
 828     last_pos = cur_y;
 829 }
 830
 831 static void cleanup(void)
 832 {
 833 #if LCD_DEPTH > 1
 834     rb->lcd_set_foreground(LCD_DEFAULT_FG);
 835     rb->lcd_set_background(LCD_DEFAULT_BG);
 836 #endif
 837     /* Turn on backlight timeout (revert to settings) */
 838     backlight_use_settings();
 839 }
 840
 841 enum plugin_status plugin_start(const void* parameter)
 842 {
 843     int button, vol;
 844 #if defined(OSCILLOSCOPE_DRAWMODE_PRE) || defined(OSCILLOSCOPE_ORIENTATION_PRE)
 845     int lastbutton = BUTTON_NONE;
 846 #endif
 847     bool exit = false;
 848     bool paused = false;
 849     bool tell_speed;
 850
 851     (void)parameter;
 852
 853     atexit(cleanup);
 854     configfile_load(cfg_filename, disk_config,
 855                     sizeof(disk_config) / sizeof(disk_config[0]),
 856                     CFGFILE_MINVERSION);
 857     rb->memcpy(&osc, &osc_disk, sizeof(osc));   /* copy to running config */
 858
 859 #if LCD_DEPTH > 1
 860     rb->lcd_set_foreground(GRAPH_COLOR);
 861     rb->lcd_set_background(BACKG_COLOR);
 862     rb->lcd_set_backdrop(NULL);
 863     rb->lcd_clear_display();
 864     rb->lcd_update();
 865 #endif
 866
 867     /* Turn off backlight timeout */
 868     backlight_ignore_timeout();
 869
 870     rb->lcd_getstringsize("A", NULL, &font_height);
 871
 872     while (!exit)
 873     {
 874         if (!paused)
 875         {
 876             int left, right;
 877
 878             rb->sleep(MAX(last_tick + osc.delay - *rb->current_tick - 1, 0));
 879
 880 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 881             left = rb->mas_codec_readreg(0xC);
 882             right = rb->mas_codec_readreg(0xD);
 883 #elif (CONFIG_CODEC == SWCODEC)
 884             static struct pcm_peaks peaks;
 885             rb->mixer_channel_calculate_peaks(PCM_MIXER_CHAN_PLAYBACK,
 886                                               &peaks);
 887             left = peaks.left; right = peaks.right;
 888 #endif
 889             if (osc.orientation == OSC_HORIZ)
 890                 anim_horizontal(left, right);
 891             else
 892                 anim_vertical(left, right);
 893         }
 894
 895         tell_speed = false;
 896         button = rb->button_get(paused);
 897         switch (button)
 898         {
 899 #ifdef OSCILLOSCOPE_RC_QUIT
 900             case OSCILLOSCOPE_RC_QUIT:
 901 #endif
 902             case OSCILLOSCOPE_QUIT:
 903                 exit = true;
 904                 break;
 905
 906             case OSCILLOSCOPE_ADVMODE:
 907                 if (++osc.advance >= MAX_ADV)
 908                     osc.advance = 0;
 909                 break;
 910
 911             case OSCILLOSCOPE_DRAWMODE:
 912 #ifdef OSCILLOSCOPE_DRAWMODE_PRE
 913                 if (lastbutton != OSCILLOSCOPE_DRAWMODE_PRE)
 914                     break;
 915 #endif
 916                 if (++osc.draw >= MAX_DRAW)
 917                     osc.draw = 0;
 918                 break;
 919
 920             case OSCILLOSCOPE_ORIENTATION:
 921 #ifdef OSCILLOSCOPE_ORIENTATION_PRE
 922                 if (lastbutton != OSCILLOSCOPE_ORIENTATION_PRE)
 923                     break;
 924 #endif
 925                 if (++osc.orientation >= MAX_OSC)
 926                     osc.orientation = 0;
 927                 last_pos = 0;
 928                 last_tick = 0;
 929                 displaymsg = false;
 930                 rb->lcd_clear_display();
 931                 rb->lcd_update();
 932                 break;
 933
 934             case OSCILLOSCOPE_PAUSE:
 935                 paused = !paused;
 936                 last_tick = 0;
 937                 break;
 938
 939             case OSCILLOSCOPE_SPEED_UP:
 940             case OSCILLOSCOPE_SPEED_UP | BUTTON_REPEAT:
 941                 if (osc.delay > 1)
 942                 {
 943                     osc.delay--;
 944                     tell_speed = true;
 945                 }
 946                 break;
 947
 948             case OSCILLOSCOPE_SPEED_DOWN:
 949             case OSCILLOSCOPE_SPEED_DOWN | BUTTON_REPEAT:
 950                 osc.delay++;
 951                 tell_speed = true;
 952                 break;
 953
 954             case OSCILLOSCOPE_VOL_UP:
 955             case OSCILLOSCOPE_VOL_UP | BUTTON_REPEAT:
 956                 vol = rb->global_settings->volume;
 957                 if (vol < rb->sound_max(SOUND_VOLUME))
 958                 {
 959                     vol++;
 960                     rb->sound_set(SOUND_VOLUME, vol);
 961                     rb->global_settings->volume = vol;
 962                 }
 963                 break;
 964
 965             case OSCILLOSCOPE_VOL_DOWN:
 966             case OSCILLOSCOPE_VOL_DOWN | BUTTON_REPEAT:
 967                 vol = rb->global_settings->volume;
 968                 if (vol > rb->sound_min(SOUND_VOLUME))
 969                 {
 970                     vol--;
 971                     rb->sound_set(SOUND_VOLUME, vol);
 972                     rb->global_settings->volume = vol;
 973                 }
 974                 break;
 975
 976             default:
 977                 exit_on_usb(button);
 978                 break;
 979         }
 980 #if defined(OSCILLOSCOPE_DRAWMODE_PRE) || defined(OSCILLOSCOPE_ORIENTATION_PRE)
 981         if (button != BUTTON_NONE)
 982             lastbutton = button;
 983 #endif
 984
 985         if (tell_speed)
 986         {
 987             rb->snprintf(message, sizeof(message), "%s%d",
 988                         (osc.orientation == OSC_VERT) ? "Speed: " : "",
 989                         100 / osc.delay);
 990             displaymsg = true;
 991         }
 992     }
 993     if (rb->memcmp(&osc, &osc_disk, sizeof(osc))) /* save settings if changed */
 994     {
 995         rb->memcpy(&osc_disk, &osc, sizeof(osc));
 996         configfile_save(cfg_filename, disk_config,
 997                         sizeof(disk_config) / sizeof(disk_config[0]),
 998                         CFGFILE_VERSION);
 999     }
1000     return PLUGIN_OK;
1001 }