e562c774cf
Following changes are done as a part of cleanup: 1. Moved the platform specific `C` examples from top level examples/ directory to platform/ subdirectory and renamed helloedison.c to gpio_edison.c 2. C specific examples are moved to a new c/ subdirectory. As a part of this process, examples are modified to follow same standards and few new examples are also added. 3. Include the newly added C examples to relevant API documentation 4. Ran clang-format for all source files in c/, c++/, platform/ subdirectories Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* Author: Nandkishor Sonar
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* Contributors: Alex Tereschenko <alext.mkrs@gmail.com>
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* Contributors: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Example usage: Reads ADC A0 value continuously. Press Ctrl+C to exit.
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*/
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/* standard headers */
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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/* mraa header */
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#include "mraa/aio.h"
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/* AIO port */
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#define AIO_PORT 0
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volatile sig_atomic_t flag = 1;
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void
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sig_handler(int signum)
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{
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if (signum == SIGINT) {
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fprintf(stdout, "Exiting...\n");
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flag = 0;
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}
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}
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int
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main()
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{
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mraa_result_t status = MRAA_SUCCESS;
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mraa_aio_context aio;
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uint16_t value = 0;
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float float_value = 0.0;
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signal(SIGINT, sig_handler);
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/* initialize mraa for the platform (not needed most of the times) */
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mraa_init();
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//! [Interesting]
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/* initialize AIO */
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aio = mraa_aio_init(AIO_PORT);
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if (aio == NULL) {
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fprintf(stderr, "Failed to initialize AIO\n");
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mraa_deinit();
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return EXIT_FAILURE;
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}
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while (flag) {
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value = mraa_aio_read(aio);
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float_value = mraa_aio_read_float(aio);
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fprintf(stdout, "ADC A0 read %X - %d\n", value, value);
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fprintf(stdout, "ADC A0 read float - %.5f\n", float_value);
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}
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/* close AIO */
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status = mraa_aio_close(aio);
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if (status != MRAA_SUCCESS) {
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goto err_exit;
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}
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//! [Interesting]
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/* deinitialize mraa for the platform (not needed most of the times) */
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mraa_deinit();
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return EXIT_SUCCESS;
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err_exit:
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mraa_result_print(status);
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/* deinitialize mraa for the platform (not needed most of the times) */
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mraa_deinit();
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return EXIT_FAILURE;
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}
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