opensteno_qmk/drivers/serial.h

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/* Copyright 2021 QMK
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <transactions.h>
// initiator is transaction start side
void soft_serial_initiator_init(void);
// target is interrupt accept side
void soft_serial_target_init(void);
// initiator result
#define TRANSACTION_END 0
#define TRANSACTION_NO_RESPONSE 0x1
#define TRANSACTION_DATA_ERROR 0x2
#define TRANSACTION_TYPE_ERROR 0x4
int soft_serial_transaction(int sstd_index);
// 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
int soft_serial_get_and_clean_status(int sstd_index);