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betaflight/src/main/drivers/pin_pull_up_down.c
2022-10-13 03:33:54 +02:00

57 lines
1.5 KiB
C

/*
* This file is part of Betaflight.
*
* Cleanflight and Betaflight are free software. You can redistribute
* this software and/or modify this software under the terms of the
* GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* Cleanflight and Betaflight are distributed in the hope that they
* 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 software.
*
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include "platform.h"
#ifdef USE_PIN_PULL_UP_DOWN
#include "build/debug.h"
#include "drivers/io.h"
#include "pg/pin_pull_up_down.h"
#include "pin_pull_up_down.h"
static void initPin(const pinPullUpDownConfig_t* config, resourceOwner_e owner, uint8_t index)
{
IO_t io = IOGetByTag(config->ioTag);
if (!io) {
return;
}
IOInit(io, owner, RESOURCE_INDEX(index));
if (owner == OWNER_PULLUP) {
IOConfigGPIO(io, IOCFG_IPU);
} else if (owner == OWNER_PULLDOWN) {
IOConfigGPIO(io, IOCFG_IPD);
}
}
void pinPullupPulldownInit(void)
{
for (uint8_t i = 0; i < PIN_PULL_UP_DOWN_COUNT; i++) {
initPin(pinPullupConfig(i), OWNER_PULLUP, i);
initPin(pinPulldownConfig(i), OWNER_PULLDOWN, i);
}
}
#endif