libs/surfaces/tranzport/lights.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 // Lights are buffered, and arguably these functions should be eliminated or inlined
  24
  25 void
  26 TranzportControlProtocol::lights_on ()
  27 {
  28         lights_pending.set();
  29 }
  30
  31 void
  32 TranzportControlProtocol::lights_off ()
  33 {
  34         lights_pending.reset();
  35 }
  36
  37 int
  38 TranzportControlProtocol::light_on (LightID light)
  39 {
  40         lights_pending.set(light);
  41         return 0;
  42 }
  43
  44 int
  45 TranzportControlProtocol::light_off (LightID light)
  46 {
  47         lights_pending.reset(light);
  48         return 0;
  49 }
  50
  51 void TranzportControlProtocol::lights_init()
  52 {
  53         lights_invalid.set();
  54         lights_flash = lights_pending = lights_current.reset();
  55 }
  56
  57
  58 // Now that all this is bitsets, I don't see much
  59 // need for these 4 to remain in the API
  60
  61 void TranzportControlProtocol::light_validate (LightID light)
  62 {
  63         lights_invalid.reset(light);
  64 }
  65
  66 void TranzportControlProtocol::light_invalidate (LightID light)
  67 {
  68         lights_invalid.set(light);
  69 }
  70
  71 void TranzportControlProtocol::lights_validate ()
  72 {
  73         lights_invalid.reset();
  74 }
  75
  76 void TranzportControlProtocol::lights_invalidate ()
  77 {
  78         lights_invalid.set();
  79 }
  80
  81 int
  82 TranzportControlProtocol::light_set (LightID light, bool offon)
  83 {
  84         uint8_t cmd[8];
  85         cmd[0] = 0x00;  cmd[1] = 0x00;  cmd[2] = light;  cmd[3] = offon;
  86         cmd[4] = 0x00;  cmd[5] = 0x00;  cmd[6] = 0x00;  cmd[7] = 0x00;
  87
  88         if (write (cmd) == 0) {
  89                 lights_current[light] = offon;
  90                 lights_invalid.reset(light);
  91                 return 0;
  92         } else {
  93                 return 1;
  94         }
  95 }