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https://fuchsia.googlesource.com/third_party/pigweed.googlesource.com/pigweed/pigweed
synced 2024-09-20 13:51:05 +00:00
6c5df358e6
This changes uses of std::span to pw::span. No changes are made to build
dependencies in this commit.
This change was made with the following shell script:
#!/bin/bash
readonly FILES="$(git ls-files '*.rst' '*.md' '*.h' '*.cc' '*.py')"
readonly PW_NS_FILES="$(git grep -l 'namespace pw\>' | grep -v generate_decoding_test_data.cc)"
echo "Updating #includes"
sed -i --follow-symlinks \
's/#include <span>/#include "pw_span\/span.h"/g' ${FILES}
for name in span as_bytes as_writable_bytes dynamic_extent; do
echo Renaming std::$name to pw::$name
sed -i --follow-symlinks "s/std::$name/pw::$name/g" ${FILES}
sed -i --follow-symlinks "s/pw::$name/$name/g" ${PW_NS_FILES}
sed -i --follow-symlinks "s/using $name;//" ${PW_NS_FILES}
done
git checkout pw_span
pw format -b origin/main --fix
Bug: b/235237667
Change-Id: I32edfbcb7cadf3ab39009596fdb7275fcc5ea3f5
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/98264
Commit-Queue: Wyatt Hepler <hepler@google.com>
Reviewed-by: Ted Pudlik <tpudlik@google.com>
Pigweed-Auto-Submit: Wyatt Hepler <hepler@google.com>
118 lines
4.0 KiB
C++
118 lines
4.0 KiB
C++
// Copyright 2021 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_sys_io/sys_io.h"
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#include <cinttypes>
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#include "pw_preprocessor/concat.h"
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#include "pw_status/status.h"
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#include "pw_sys_io_stm32cube_private/config.h"
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#include "stm32cube/stm32cube.h"
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// These macros remap config options to the various STM32Cube HAL macro names.
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// USART_INSTANCE defined to USARTn, where n is the USART peripheral index.
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#define USART_INSTANCE PW_CONCAT(USART, PW_SYS_IO_STM32CUBE_USART_NUM)
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// USART_GPIO_ALTERNATE_FUNC defined to GPIO_AFm_USARTn, where m is the
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// alternate function index and n is the USART peripheral index.
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#define USART_GPIO_ALTERNATE_FUNC \
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PW_CONCAT(GPIO_AF, \
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PW_SYS_IO_STM32CUBE_GPIO_AF, \
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_USART, \
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PW_SYS_IO_STM32CUBE_USART_NUM)
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// USART_GPIO_PORT defined to GPIOx, where x is the GPIO port letter that the
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// TX/RX pins are on.
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#define USART_GPIO_PORT PW_CONCAT(GPIO, PW_SYS_IO_STM32CUBE_GPIO_PORT)
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#define USART_GPIO_TX_PIN PW_CONCAT(GPIO_PIN_, PW_SYS_IO_STM32CUBE_GPIO_TX_PIN)
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#define USART_GPIO_RX_PIN PW_CONCAT(GPIO_PIN_, PW_SYS_IO_STM32CUBE_GPIO_RX_PIN)
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// USART_GPIO_PORT_ENABLE defined to __HAL_RCC_GPIOx_CLK_ENABLE, where x is the
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// GPIO port letter that the TX/RX pins are on.
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#define USART_GPIO_PORT_ENABLE \
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PW_CONCAT(__HAL_RCC_GPIO, PW_SYS_IO_STM32CUBE_GPIO_PORT, _CLK_ENABLE)
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// USART_ENABLE defined to __HAL_RCC_USARTn_CLK_ENABLE, where n is the USART
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// peripheral index.
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#define USART_ENABLE \
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PW_CONCAT(__HAL_RCC_USART, PW_SYS_IO_STM32CUBE_USART_NUM, _CLK_ENABLE)
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static UART_HandleTypeDef uart;
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extern "C" void pw_sys_io_Init() {
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GPIO_InitTypeDef GPIO_InitStruct = {};
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USART_ENABLE();
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USART_GPIO_PORT_ENABLE();
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GPIO_InitStruct.Pin = USART_GPIO_TX_PIN | USART_GPIO_RX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = USART_GPIO_ALTERNATE_FUNC;
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HAL_GPIO_Init(USART_GPIO_PORT, &GPIO_InitStruct);
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uart.Instance = USART_INSTANCE;
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uart.Init.BaudRate = 115200;
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uart.Init.WordLength = UART_WORDLENGTH_8B;
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uart.Init.StopBits = UART_STOPBITS_1;
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uart.Init.Parity = UART_PARITY_NONE;
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uart.Init.Mode = UART_MODE_TX_RX;
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uart.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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uart.Init.OverSampling = UART_OVERSAMPLING_16;
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HAL_UART_Init(&uart);
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}
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// This whole implementation is very inefficient because it uses the synchronous
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// polling UART API and only reads / writes 1 byte at a time.
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namespace pw::sys_io {
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Status ReadByte(std::byte* dest) {
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if (HAL_UART_Receive(
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&uart, reinterpret_cast<uint8_t*>(dest), 1, HAL_MAX_DELAY) !=
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HAL_OK) {
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return Status::ResourceExhausted();
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}
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return OkStatus();
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}
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Status TryReadByte(std::byte* dest) { return Status::Unimplemented(); }
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Status WriteByte(std::byte b) {
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if (HAL_UART_Transmit(
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&uart, reinterpret_cast<uint8_t*>(&b), 1, HAL_MAX_DELAY) != HAL_OK) {
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return Status::ResourceExhausted();
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}
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return OkStatus();
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}
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// Writes a string using pw::sys_io, and add newline characters at the end.
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StatusWithSize WriteLine(const std::string_view& s) {
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size_t chars_written = 0;
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StatusWithSize result = WriteBytes(as_bytes(span(s)));
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if (!result.ok()) {
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return result;
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}
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chars_written += result.size();
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// Write trailing newline.
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result = WriteBytes(as_bytes(span("\r\n", 2)));
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chars_written += result.size();
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return StatusWithSize(OkStatus(), chars_written);
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}
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} // namespace pw::sys_io
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