Raspberries/mraa
Private
Public Access
2
0
Fork 0
Code Activity

examples: cleanup examples directory

Browse Source 
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>
This commit is contained in:
Manivannan Sadhasivam
2017-11-17 17:22:34 +05:30
committed by Brendan Le Foll
parent 3fb65de4b8
commit e562c774cf
46 changed files with 1542 additions and 1025 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
examples/platform/gpio_edison.c Normal file
View File

@@ -0,0 +1,69 @@
/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
//! [Interesting]
#include "mraa.h"
int
main(int argc, char** argv)
{
mraa_result_t ret = MRAA_SUCCESS;
mraa_platform_t platform_type = mraa_get_platform_type();
if (platform_type != MRAA_INTEL_EDISON_FAB_C) {
fprintf(stderr, "Error: This program can only run on an edison\n");
ret = MRAA_ERROR_INVALID_PLATFORM;
goto end;
}
// MRAA_INTEL_EDISON_GP182 == 0 so this will initialise pin0 on arduino
// which is hardware gpio 130 and not 182
mraa_gpio_context gpio182 = mraa_gpio_init(MRAA_INTEL_EDISON_GP182);
if (gpio182 == NULL) {
fprintf(stderr, "Error: Failed to open gpio182\n");
ret = MRAA_ERROR_INVALID_PLATFORM;
goto end;
}
mraa_gpio_dir(gpio182, MRAA_GPIO_OUT);
// we set the owner to false here, this makes sure that we do not close the
// gpio from sysfs in mraa_gpio_close meaning it will stay as an output and
// we will not always transition from 0->1 as gpio182 as output has the
// default position of '0'. Note that the value could change as a result of
// a mraa_gpio_dir however meaning we always go from 0->1 or 1->0
mraa_gpio_owner(gpio182, false);
int val = mraa_gpio_read(gpio182);
printf("GPIO%d (mraa pin %d) was: %d, will set to %d\n", 182, mraa_gpio_get_pin(gpio182), val, !val);
mraa_gpio_write(gpio182, !val);
mraa_gpio_close(gpio182);
end:
mraa_deinit();
return ret;
}
//! [Interesting]