mirror of
https://github.com/betaflight/betaflight.git
synced 2025-07-13 03:20:00 +03:00
0bb1254ee8
* Move RCC from drivers to platform * Extra line removed * Suggestion from code rabbit * Remove else and require explicit
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
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* This file is part of Cleanflight and Betaflight.
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*
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* Cleanflight and Betaflight are free software. You can redistribute
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* this software and/or modify this software under the terms of the
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* GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* Cleanflight and Betaflight are distributed in the hope that they
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software.
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*
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* UART pin configuration common to all MCUs.
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*/
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/*
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* Authors:
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* jflyper - Created as a part of configurable UART/refactoring.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "platform.h"
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#ifdef USE_UART
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#include "build/build_config.h"
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#include "drivers/serial.h"
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#include "drivers/serial_uart.h"
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#include "drivers/serial_uart_impl.h"
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void uartPinConfigure(const serialPinConfig_t *pSerialPinConfig)
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{
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for (const uartHardware_t* hardware = uartHardware; hardware < ARRAYEND(uartHardware); hardware++) {
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const serialPortIdentifier_e identifier = hardware->identifier;
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uartDevice_t* uartdev = uartDeviceFromIdentifier(identifier);
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const int resourceIndex = serialResourceIndex(identifier);
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if (uartdev == NULL || resourceIndex < 0) {
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// malformed uartHardware
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continue;
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}
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const ioTag_t cfgRx = pSerialPinConfig->ioTagRx[resourceIndex];
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const ioTag_t cfgTx = pSerialPinConfig->ioTagTx[resourceIndex];
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#if UART_TRAIT_PINSWAP
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bool swap = false;
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#endif
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for (unsigned pindex = 0; pindex < UARTHARDWARE_MAX_PINS; pindex++) {
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if (cfgRx && cfgRx == hardware->rxPins[pindex].pin) {
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uartdev->rx = hardware->rxPins[pindex];
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}
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if (cfgTx && cfgTx == hardware->txPins[pindex].pin) {
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uartdev->tx = hardware->txPins[pindex];
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}
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#if UART_TRAIT_PINSWAP
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// Check for swapped pins
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if (cfgTx && cfgTx == hardware->rxPins[pindex].pin) {
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uartdev->tx = hardware->rxPins[pindex];
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swap = true;
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}
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if (cfgRx && cfgRx == hardware->txPins[pindex].pin) {
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uartdev->rx = hardware->txPins[pindex];
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swap = true;
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}
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#endif
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}
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if (uartdev->rx.pin || uartdev->tx.pin ) {
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uartdev->hardware = hardware;
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#if UART_TRAIT_PINSWAP
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uartdev->pinSwap = swap;
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#endif
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}
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}
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}
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#endif
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