git.zerfleddert.de Git - fnordlicht-mini/blob - firmware/fnordlicht-controller/ir.h

   1 /*
   2  *   ox - infrared to usb keyboard/mouse adapter
   3  *
   4  *   by Alexander Neumann <alexander@lochraster.org>
   5  *
   6  * inspired by InfraHID by Alex Badea,
   7  * see http://vamposdecampos.googlepages.com/infrahid.html
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * For more information on the GPL, please go to:
  23  * http://www.gnu.org/copyleft/gpl.html
  24  */
  25
  26 #ifndef __IR_H
  27 #define __IR_H
  28
  29 enum ir_mode_t
  30 {
  31     IR_DISABLED    = 0,
  32     IR_RAW         = 1,    /* just receive a code, disable ir afterwards (-> DISABLE) */
  33     IR_DECODE      = 2,    /* just receive and decode vaules, disable ir afterwards (-> DISABLE) */
  34     IR_RECEIVE     = 3,    /* receive, decode and process codes */
  35 };
  36
  37 struct ir_global_t
  38 {
  39     enum ir_mode_t mode;
  40     uint16_t last;
  41     uint8_t length;
  42
  43     #define MAX_CODE_LENGTH 160
  44     /* internal storage for received code: allocate 160*2 = 320 byte memory for
  45      * storing a code, this means we can store 80 on/off sequence timings */
  46
  47     uint16_t time[MAX_CODE_LENGTH];
  48     uint8_t pos;
  49 };
  50
  51 extern volatile struct ir_global_t ir_global;
  52
  53 void ir_init(void);
  54 void ir_poll(void);
  55
  56 void ir_set_mode(enum ir_mode_t mode);
  57
  58 #define ir_disable() ir_set_mode(IR_DISABLED);
  59 #define ir_enable() ir_set_mode(IR_RECEIVE);
  60
  61 #endif