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  1. #ifndef IR_PROTOCOLS_H_
  2. #define IR_PROTOCOLS_H_
  3. #include <stdio.h>
  4. #include <config.h>
  5.  
  6. /* Protocol data structure */
  7. typedef struct {
  8.     uint8_t protocol;
  9.     uint32_t data;
  10.     uint16_t timeout;
  11.     uint8_t repeats;
  12.     uint8_t modfreq;
  13.     uint8_t framecnt;
  14. } Ir_Protocol_Data_t;
  15.  
  16. /* Which protocols to use. These should perhaps be configuration options
  17.  * (config.inc). Only applies to receiver right now */
  18. #define IR_PROTOCOLS_USE_SIRC       1
  19. #define IR_PROTOCOLS_USE_RC5        1
  20. #define IR_PROTOCOLS_USE_SHARP      1
  21. #define IR_PROTOCOLS_USE_NEC        1
  22. #define IR_PROTOCOLS_USE_SAMSUNG    1
  23. #define IR_PROTOCOLS_USE_MARANTZ    1
  24.  
  25. /* All these functions take a buffer with pulse times and tries to parse it
  26.  * to a Ir_Protocol_Data_t structure. They return IR_OK on success
  27.  * and IR_NOT_CORRECT_DATA if there was no match. */
  28. #if (IR_PROTOCOLS_USE_SIRC)
  29. int8_t parseSIRC(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  30. #endif
  31. #if (IR_PROTOCOLS_USE_RC5)
  32. int8_t parseRC5(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  33. #endif
  34. #if (IR_PROTOCOLS_USE_SHARP)
  35. int8_t parseSharp(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  36. #endif
  37. #if (IR_PROTOCOLS_USE_NEC)
  38. int8_t parseNEC(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  39. #endif
  40. #if (IR_PROTOCOLS_USE_SAMSUNG)
  41. int8_t parseSamsung(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  42. #endif
  43. #if (IR_PROTOCOLS_USE_MARANTZ)
  44. int8_t parseMarantz(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  45. #endif
  46. /* Try to parse all above protocols until a match is found. */
  47. int8_t parseProtocol(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  48. /* The Hash protocol always succeeds and creates a one-way signature of the
  49.  * pulse times buffer that is supposed to be unique and constant for a specific
  50.  * IR event. It may be used to send a valid event even if the protocol hasn't
  51.  * been implemented or decoded yet. */
  52. int8_t parseHash(const uint16_t *buf, uint8_t len, Ir_Protocol_Data_t *proto);
  53.  
  54. /* These functions expand a Ir_Protocol_Data_t structure into a raw buffer with
  55.  * pulse lengths. They return IR_OK on success and IR_NOT_CORRECT_DATA if the
  56.  * Ir_Protocol_Data_t structure is for another protocol or contains invalid
  57.  * data. */
  58. int8_t expandSIRC(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  59. int8_t expandRC5(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  60. int8_t expandSharp(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  61. int8_t expandNEC(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  62. int8_t expandSamsung(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  63. int8_t expandMarantz(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  64. /* Pass the Ir_Protocol_Data_t automatically to the correct function. */
  65. int8_t expandProtocol(uint16_t *buf, uint8_t *len, Ir_Protocol_Data_t *proto);
  66.  
  67.  
  68. #define IR_OK               1
  69. #define IR_NO_PROTOCOL      2
  70. #define IR_TIME_OVFL        3
  71. #define IR_NO_DATA          4
  72. #define IR_NOT_CORRECT_DATA 5
  73. #define IR_TO_MUCH_DATA     6
  74. #define IR_NOT_FINISHED     7
  75.  
  76. #define IR_BUTTON_DOWN      0x0
  77. #define IR_BUTTON_UP        0xf
  78.  
  79. #define CYCLES_PER_US       (F_CPU/1000000)
  80. #define TIMER_PRESC         8
  81.  
  82. #define IR_MIN_PULSE_WIDTH  5                                   //us
  83. #define IR_MAX_PULSE_WIDTH  12000                               //us
  84.  
  85. /* RC5 Implementation
  86.  * Receiver: DONE
  87.  * Transmitter:
  88.  */
  89. #define IR_PROTO_RC5        0
  90. #define IR_RC5_HALF_BIT     889*CYCLES_PER_US/TIMER_PRESC       //us
  91. #define IR_RC5_BIT          889*2*CYCLES_PER_US/TIMER_PRESC     //us
  92. #define IR_RC5_TIMEOUT      105                                 //ms    (time between ir frames)
  93. #define IR_RC5_REPS         1                                   //      (minimum number of times to repeat code)
  94. #define IR_RC5_F_MOD        36                                  //kHz   (modulation frequency)
  95. #define IR_RC5_TOL_DIV      4
  96.  
  97. /* RC6 Implementation
  98.  * Receiver:
  99.  * Transmitter:
  100.  */
  101. #define IR_PROTO_RC6        1
  102. #define IR_RC6_ST_BIT       1*CYCLES_PER_US/TIMER_PRESC         //us
  103. #define IR_RC6_TIMEOUT      1                                   //ms    (time between ir frames)
  104. #define IR_RC6_REPS         1                                   //      (minimum number of times to repeat code)
  105. #define IR_RC6_F_MOD        36                                  //kHz   (modulation frequency)
  106. #define IR_RC6_TOL_DIV      4
  107.  
  108. /* RCMM Implementation
  109.  * Receiver:
  110.  * Transmitter:
  111.  */
  112. #define IR_PROTO_RCMM       2
  113. #define IR_RCMM_ST_BIT      256*CYCLES_PER_US/TIMER_PRESC       //us
  114. #define IR_RCMM_TIMEOUT     158                                 //ms    (time between ir frames)
  115. #define IR_RCMM_REPS        1                                   //      (minimum number of times to repeat code)
  116. #define IR_RCMM_F_MOD       36                                  //kHz   (modulation frequency)
  117. #define IR_RCMM_TOL_DIV     4
  118.  
  119. /* SIRC Implementation
  120.  * Receiver: DONE
  121.  * Transmitter:
  122.  */
  123. #define IR_PROTO_SIRC       3
  124. #define IR_SIRC_ST_BIT      2400*CYCLES_PER_US/TIMER_PRESC      //us
  125. #define IR_SIRC_LOW         600*CYCLES_PER_US/TIMER_PRESC       //us
  126. #define IR_SIRC_HIGH_ONE    1200*CYCLES_PER_US/TIMER_PRESC      //us
  127. #define IR_SIRC_HIGH_ZERO   600*CYCLES_PER_US/TIMER_PRESC       //us
  128. #define IR_SIRC_TIMEOUT     40                                  //ms    (time between ir frames)
  129. #define IR_SIRC_REPS        1                                   //      (minimum number of times to repeat code)
  130. #define IR_SIRC_F_MOD       40                                  //kHz   (modulation frequency)
  131. #define IR_SIRC_TOL_DIV     4
  132.  
  133. /* Sharp Implementation
  134.  * Receiver: DONE
  135.  * Transmitter:
  136.  */
  137. #define IR_PROTO_SHARP      4
  138. #define IR_SHARP_HIGH       280*CYCLES_PER_US/TIMER_PRESC       //us
  139. #define IR_SHARP_LOW_ONE    1850*CYCLES_PER_US/TIMER_PRESC      //us
  140. #define IR_SHARP_LOW_ZERO   780*CYCLES_PER_US/TIMER_PRESC       //us
  141. #define IR_SHARP_TIMEOUT    55                                  //ms    (time between ir frames)
  142. #define IR_SHARP_REPS       2                                   //      (minimum number of times to repeat code)
  143. #define IR_SHARP_F_MOD      38                                  //kHz   (modulation frequency)
  144. #define IR_SHARP_TOL_DIV    4
  145.  
  146. /* NEC Implementation
  147.  * Receiver: DONE
  148.  * Transmitter: DONE
  149.  */
  150. #define IR_PROTO_NEC        5
  151. #define IR_NEC_ST_BIT       9000*CYCLES_PER_US/TIMER_PRESC      //us
  152. #define IR_NEC_ST_PAUSE     4500*CYCLES_PER_US/TIMER_PRESC      //us
  153. #define IR_NEC_LOW_ONE      1690*CYCLES_PER_US/TIMER_PRESC      //us
  154. #define IR_NEC_LOW_ZERO     560*CYCLES_PER_US/TIMER_PRESC       //us
  155. #define IR_NEC_HIGH         560*CYCLES_PER_US/TIMER_PRESC       //us
  156. #define IR_NEC_TIMEOUT      110                                 //ms    (time between ir frames)
  157. #define IR_NEC_ST_TIMEOUT   65                                  //ms    (time between first ir frames and second)
  158. #define IR_NEC_REPS         1                                   //      (minimum number of times to repeat code)
  159. #define IR_NEC_F_MOD        38                                  //kHz   (modulation frequency)
  160. #define IR_NEC_TOL_DIV      4
  161.  
  162. /* Samsung Implementation
  163.  * Receiver: DONE
  164.  * Transmitter: DONE
  165.  */
  166. #define IR_PROTO_SAMS       6
  167. #define IR_SAMS_ST_BIT      4500*CYCLES_PER_US/TIMER_PRESC      //us
  168. #define IR_SAMS_ST_PAUSE    4500*CYCLES_PER_US/TIMER_PRESC      //us
  169. #define IR_SAMS_LOW_ONE     1720*CYCLES_PER_US/TIMER_PRESC      //us
  170. #define IR_SAMS_LOW_ZERO    650*CYCLES_PER_US/TIMER_PRESC       //us
  171. #define IR_SAMS_HIGH        500*CYCLES_PER_US/TIMER_PRESC       //us
  172. #define IR_SAMS_TIMEOUT     50                                  //ms    (time between ir frames)
  173. #define IR_SAMS_REPS        1                                   //      (minimum number of times to repeat code)
  174. #define IR_SAMS_F_MOD       38                                  //kHz   (modulation frequency)
  175. #define IR_SAMS_TOL_DIV     4
  176.  
  177.  
  178. #define IR_PROTO_HASH       0xfe
  179. #define IR_PROTO_UNKNOWN    0xff                                //
  180.  
  181.  
  182. /* Marantz Implementation
  183.  * Receiver: Working (has not been tested with odd adressbits)
  184.  * Transmitter:
  185.  */
  186. #define IR_PROTO_MARANTZ        7
  187. #define IR_MARANTZ_HALF_BIT     889*CYCLES_PER_US/TIMER_PRESC       //us
  188. #define IR_MARANTZ_BIT          889*2*CYCLES_PER_US/TIMER_PRESC     //us
  189. #define IR_MARANTZ_TIMEOUT      105                                 //ms    (time between ir frames)
  190. #define IR_MARANTZ_REPS         1                                   //      (minimum number of times to repeat code)
  191. #define IR_MARANTZ_F_MOD        36                                  //kHz   (modulation frequency)
  192. #define IR_MARANTZ_TOL_DIV      4
  193.  
  194.  
  195. #endif /*IR_PROTOCOLS_H_*/
  196.