forked from mirrors/qmk_firmware
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
#ifndef SOFT_SERIAL_H
|
|
#define SOFT_SERIAL_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
// /////////////////////////////////////////////////////////////////
|
|
// Need Soft Serial defines in config.h
|
|
// /////////////////////////////////////////////////////////////////
|
|
// ex.
|
|
// #define SOFT_SERIAL_PIN ?? // ?? = D0,D1,D2,D3,E6
|
|
// OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
|
|
// // 1: about 137kbps (default)
|
|
// // 2: about 75kbps
|
|
// // 3: about 39kbps
|
|
// // 4: about 26kbps
|
|
// // 5: about 20kbps
|
|
//
|
|
// //// USE Simple API (OLD API, compatible with let's split serial.c)
|
|
// ex.
|
|
// #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
|
|
// #define SERIAL_MASTER_BUFFER_LENGTH 1
|
|
//
|
|
// //// USE flexible API (using multi-type transaction function)
|
|
// #define SERIAL_USE_MULTI_TRANSACTION
|
|
//
|
|
// /////////////////////////////////////////////////////////////////
|
|
|
|
|
|
#ifndef SERIAL_USE_MULTI_TRANSACTION
|
|
/* --- USE Simple API (OLD API, compatible with let's split serial.c) */
|
|
#if SERIAL_SLAVE_BUFFER_LENGTH > 0
|
|
extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
|
|
#endif
|
|
#if SERIAL_MASTER_BUFFER_LENGTH > 0
|
|
extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
|
|
#endif
|
|
|
|
void serial_master_init(void);
|
|
void serial_slave_init(void);
|
|
int serial_update_buffers(void);
|
|
|
|
#endif // USE Simple API
|
|
|
|
// Soft Serial Transaction Descriptor
|
|
typedef struct _SSTD_t {
|
|
uint8_t *status;
|
|
uint8_t initiator2target_buffer_size;
|
|
uint8_t *initiator2target_buffer;
|
|
uint8_t target2initiator_buffer_size;
|
|
uint8_t *target2initiator_buffer;
|
|
} SSTD_t;
|
|
#define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t))
|
|
|
|
// initiator is transaction start side
|
|
void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
|
|
// target is interrupt accept side
|
|
void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
|
|
|
|
// initiator resullt
|
|
#define TRANSACTION_END 0
|
|
#define TRANSACTION_NO_RESPONSE 0x1
|
|
#define TRANSACTION_DATA_ERROR 0x2
|
|
#define TRANSACTION_TYPE_ERROR 0x4
|
|
#ifndef SERIAL_USE_MULTI_TRANSACTION
|
|
int soft_serial_transaction(void);
|
|
#else
|
|
int soft_serial_transaction(int sstd_index);
|
|
#endif
|
|
|
|
// target status
|
|
// *SSTD_t.status has
|
|
// initiator:
|
|
// TRANSACTION_END
|
|
// or TRANSACTION_NO_RESPONSE
|
|
// or TRANSACTION_DATA_ERROR
|
|
// target:
|
|
// TRANSACTION_DATA_ERROR
|
|
// or TRANSACTION_ACCEPTED
|
|
#define TRANSACTION_ACCEPTED 0x8
|
|
#ifdef SERIAL_USE_MULTI_TRANSACTION
|
|
int soft_serial_get_and_clean_status(int sstd_index);
|
|
#endif
|
|
|
|
#endif /* SOFT_SERIAL_H */
|