keyboards/yosino58/serial.h

   1 #ifndef SOFT_SERIAL_H
   2 #define SOFT_SERIAL_H
   3
   4 #include <stdbool.h>
   5
   6 // /////////////////////////////////////////////////////////////////
   7 // Need Soft Serial defines in config.h
   8 // /////////////////////////////////////////////////////////////////
   9 // ex.
  10 //  #define SOFT_SERIAL_PIN ??   // ?? = D0,D1,D2,D3,E6
  11 //  OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
  12 //                                               //  1: about 137kbps (default)
  13 //                                               //  2: about 75kbps
  14 //                                               //  3: about 39kbps
  15 //                                               //  4: about 26kbps
  16 //                                               //  5: about 20kbps
  17 //
  18 // //// USE Simple API (OLD API, compatible with let's split serial.c)
  19 // ex.
  20 //  #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
  21 //  #define SERIAL_MASTER_BUFFER_LENGTH 1
  22 //
  23 // //// USE flexible API (using multi-type transaction function)
  24 //  #define SERIAL_USE_MULTI_TRANSACTION
  25 //
  26 // /////////////////////////////////////////////////////////////////
  27
  28
  29 #ifndef SERIAL_USE_MULTI_TRANSACTION
  30 /* --- USE Simple API (OLD API, compatible with let's split serial.c) */
  31 #if SERIAL_SLAVE_BUFFER_LENGTH > 0
  32 extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
  33 #endif
  34 #if SERIAL_MASTER_BUFFER_LENGTH > 0
  35 extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
  36 #endif
  37
  38 void serial_master_init(void);
  39 void serial_slave_init(void);
  40 int serial_update_buffers(void);
  41
  42 #endif // USE Simple API
  43
  44 // Soft Serial Transaction Descriptor
  45 typedef struct _SSTD_t  {
  46     uint8_t *status;
  47     uint8_t initiator2target_buffer_size;
  48     uint8_t *initiator2target_buffer;
  49     uint8_t target2initiator_buffer_size;
  50     uint8_t *target2initiator_buffer;
  51 } SSTD_t;
  52 #define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t))
  53
  54 // initiator is transaction start side
  55 void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
  56 // target is interrupt accept side
  57 void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
  58
  59 // initiator resullt
  60 #define TRANSACTION_END 0
  61 #define TRANSACTION_NO_RESPONSE 0x1
  62 #define TRANSACTION_DATA_ERROR  0x2
  63 #define TRANSACTION_TYPE_ERROR  0x4
  64 #ifndef SERIAL_USE_MULTI_TRANSACTION
  65 int  soft_serial_transaction(void);
  66 #else
  67 int  soft_serial_transaction(int sstd_index);
  68 #endif
  69
  70 // target status
  71 // *SSTD_t.status has
  72 //   initiator:
  73 //       TRANSACTION_END
  74 //    or TRANSACTION_NO_RESPONSE
  75 //    or TRANSACTION_DATA_ERROR
  76 //   target:
  77 //       TRANSACTION_DATA_ERROR
  78 //    or TRANSACTION_ACCEPTED
  79 #define TRANSACTION_ACCEPTED 0x8
  80 #ifdef SERIAL_USE_MULTI_TRANSACTION
  81 int  soft_serial_get_and_clean_status(int sstd_index);
  82 #endif
  83
  84 #endif /* SOFT_SERIAL_H */