f37a134f71
* [Keyboard] Convert Corne Keyboard to Split Common * Add VIA Support * Makes sure that ol(e)d and new OLED implementation can't coexist * Add licensing header to files * Add changes based on feedback from foostan * Fixes
112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
/*
|
|
Copyright 2019 @foostan
|
|
Copyright 2020 Drashna Jaelre <@drashna>
|
|
|
|
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/>.
|
|
*/
|
|
|
|
#ifdef USE_SERIAL
|
|
#ifdef SERIAL_USE_MULTI_TRANSACTION
|
|
/* --- USE flexible API (using multi-type transaction function) --- */
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <split_scomm.h>
|
|
#include "serial.h"
|
|
#ifdef CONSOLE_ENABLE
|
|
#include "debug.h"
|
|
#endif
|
|
|
|
uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
|
|
uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
|
|
uint8_t volatile status_com = 0;
|
|
uint8_t volatile status1 = 0;
|
|
uint8_t slave_buffer_change_count = 0;
|
|
uint8_t s_change_old = 0xff;
|
|
uint8_t s_change_new = 0xff;
|
|
|
|
SSTD_t transactions[] = {
|
|
#define GET_SLAVE_STATUS 0
|
|
/* master buffer not changed, only recive slave_buffer_change_count */
|
|
{ (uint8_t *)&status_com,
|
|
0, NULL,
|
|
sizeof(slave_buffer_change_count), &slave_buffer_change_count,
|
|
},
|
|
#define PUT_MASTER_GET_SLAVE_STATUS 1
|
|
/* master buffer changed need send, and recive slave_buffer_change_count */
|
|
{ (uint8_t *)&status_com,
|
|
sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
|
|
sizeof(slave_buffer_change_count), &slave_buffer_change_count,
|
|
},
|
|
#define GET_SLAVE_BUFFER 2
|
|
/* recive serial_slave_buffer */
|
|
{ (uint8_t *)&status1,
|
|
0, NULL,
|
|
sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
|
|
}
|
|
};
|
|
|
|
void serial_master_init(void)
|
|
{
|
|
soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
|
|
}
|
|
|
|
void serial_slave_init(void)
|
|
{
|
|
soft_serial_target_init(transactions, TID_LIMIT(transactions));
|
|
}
|
|
|
|
// 0 => no error
|
|
// 1 => slave did not respond
|
|
// 2 => checksum error
|
|
int serial_update_buffers(int master_update)
|
|
{
|
|
int status, smatstatus;
|
|
static int need_retry = 0;
|
|
|
|
if( s_change_old != s_change_new ) {
|
|
smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
|
|
if( smatstatus == TRANSACTION_END ) {
|
|
s_change_old = s_change_new;
|
|
#ifdef CONSOLE_ENABLE
|
|
if (debug_matrix) {
|
|
uprintf("slave matrix = %b %b %b %b\n",
|
|
serial_slave_buffer[0], serial_slave_buffer[1],
|
|
serial_slave_buffer[2], serial_slave_buffer[3]);
|
|
}
|
|
#endif
|
|
}
|
|
} else {
|
|
// serial_slave_buffer dosen't change
|
|
smatstatus = TRANSACTION_END; // dummy status
|
|
}
|
|
|
|
if( !master_update && !need_retry) {
|
|
status = soft_serial_transaction(GET_SLAVE_STATUS);
|
|
} else {
|
|
status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
|
|
}
|
|
if( status == TRANSACTION_END ) {
|
|
s_change_new = slave_buffer_change_count;
|
|
need_retry = 0;
|
|
} else {
|
|
need_retry = 1;
|
|
}
|
|
return smatstatus;
|
|
}
|
|
|
|
#endif // SERIAL_USE_MULTI_TRANSACTION
|
|
#endif /* USE_SERIAL */
|