libs/surfaces/tranzport/buttons.cc

   1 /*
   2  *   Copyright (C) 2006 Paul Davis
   3  *   Copyright (C) 2007 Michael Taht
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation; either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  *
  19  *   */
  20
  21 #include "tranzport_control_protocol.h"
  22
  23 #define TRANZPORT_BUTTON_HANDLER(callback, button_arg) if (button_changes & button_arg) { \
  24                 if (buttonmask & button_arg) {                          \
  25                         callback##_press (buttonmask&ButtonShift); } else { callback##_release (buttonmask&ButtonShift); } }
  26
  27 int
  28 TranzportControlProtocol::process (uint8_t* buf)
  29 {
  30
  31         uint32_t this_button_mask;
  32         uint32_t button_changes;
  33
  34         _device_status = buf[1];
  35
  36 #if DEBUG_TRANZPORT > 10
  37         // Perhaps the device can go offline due to flow control, print command bits to see if we have anything interesting
  38         if(_device_status == STATUS_ONLINE) {
  39                 printf("ONLINE   : %02x %02x %02x %02x %02x %02x %02x %02x\n",
  40                        buf[0],buf[1],buf[2], buf[3], buf[4], buf[5],buf[6],buf[7]);
  41         }
  42         if(_device_status == STATUS_OFFLINE) {
  43                 printf("OFFLINE  : %02x %02x %02x %02x %02x %02x %02x %02x\n",
  44                        buf[0],buf[1],buf[2], buf[3], buf[4], buf[5],buf[6],buf[7]);
  45         }
  46
  47         if(_device_status != STATUS_OK) { return 1; }
  48
  49 #endif
  50
  51
  52         this_button_mask = 0;
  53         this_button_mask |= buf[2] << 24;
  54         this_button_mask |= buf[3] << 16;
  55         this_button_mask |= buf[4] << 8;
  56         this_button_mask |= buf[5];
  57         _datawheel = buf[6];
  58
  59 #if DEBUG_TRANZPORT_STATE > 1
  60         // Is the state machine incomplete?
  61         const unsigned int knownstates = 0x00004000|0x00008000|
  62                 0x04000000|    0x40000000|    0x00040000|    0x00400000|
  63                 0x00000400|    0x80000000|    0x02000000|    0x20000000|
  64                 0x00800000|    0x00080000|    0x00020000|    0x00200000|
  65                 0x00000200|    0x01000000|    0x10000000|    0x00010000|
  66                 0x00100000|    0x00000100|    0x08000000|    0x00001000;
  67
  68         std::bitset<32> bi(knownstates);
  69         std::bitset<32> vi(this_button_mask);
  70
  71         //  if an bi & vi == vi the same - it's a valid set
  72
  73         if(vi != (bi & vi)) {
  74                 printf("UNKNOWN STATE: %s also, datawheel= %d\n", vi.to_string().c_str(), _datawheel);
  75         }
  76 #endif
  77
  78         button_changes = (this_button_mask ^ buttonmask);
  79         buttonmask = this_button_mask;
  80
  81         if (_datawheel) {
  82                 datawheel ();
  83         }
  84
  85         // SHIFT + STOP + PLAY for bling mode?
  86         // if (button_changes & ButtonPlay & ButtonStop) {
  87         // bling_mode_toggle();
  88         // } or something like that
  89
  90         TRANZPORT_BUTTON_HANDLER(button_event_battery,ButtonBattery);
  91         TRANZPORT_BUTTON_HANDLER(button_event_backlight,ButtonBacklight);
  92         TRANZPORT_BUTTON_HANDLER(button_event_trackleft,ButtonTrackLeft);
  93         TRANZPORT_BUTTON_HANDLER(button_event_trackright,ButtonTrackRight);
  94         TRANZPORT_BUTTON_HANDLER(button_event_trackrec,ButtonTrackRec);
  95         TRANZPORT_BUTTON_HANDLER(button_event_trackmute,ButtonTrackMute);
  96         TRANZPORT_BUTTON_HANDLER(button_event_tracksolo,ButtonTrackSolo);
  97         TRANZPORT_BUTTON_HANDLER(button_event_undo,ButtonUndo);
  98         TRANZPORT_BUTTON_HANDLER(button_event_in,ButtonIn);
  99         TRANZPORT_BUTTON_HANDLER(button_event_out,ButtonOut);
 100         TRANZPORT_BUTTON_HANDLER(button_event_punch,ButtonPunch);
 101         TRANZPORT_BUTTON_HANDLER(button_event_loop,ButtonLoop);
 102         TRANZPORT_BUTTON_HANDLER(button_event_prev,ButtonPrev);
 103         TRANZPORT_BUTTON_HANDLER(button_event_add,ButtonAdd);
 104         TRANZPORT_BUTTON_HANDLER(button_event_next,ButtonNext);
 105         TRANZPORT_BUTTON_HANDLER(button_event_rewind,ButtonRewind);
 106         TRANZPORT_BUTTON_HANDLER(button_event_fastforward,ButtonFastForward);
 107         TRANZPORT_BUTTON_HANDLER(button_event_stop,ButtonStop);
 108         TRANZPORT_BUTTON_HANDLER(button_event_play,ButtonPlay);
 109         TRANZPORT_BUTTON_HANDLER(button_event_record,ButtonRecord);
 110         TRANZPORT_BUTTON_HANDLER(button_event_footswitch,ButtonFootswitch);
 111         return 0;
 112 }
 113