forked from Archive/PX4-Autopilot
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2018 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#include <parameters/param.h>
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#include <px4_platform_common/cli.h>
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#ifndef MODULE_NAME
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#define MODULE_NAME "cli"
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#endif
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#include <px4_platform_common/log.h>
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#include <cstring>
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#include <errno.h>
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#include <cstdlib>
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int px4_get_parameter_value(const char *option, int &value)
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{
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value = 0;
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/* check if this is a param name */
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if (strncmp("p:", option, 2) == 0) {
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const char *param_name = option + 2;
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/* user wants to use a param name */
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param_t param_handle = param_find(param_name);
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if (param_handle != PARAM_INVALID) {
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if (param_type(param_handle) != PARAM_TYPE_INT32) {
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return -EINVAL;
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}
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int32_t pwm_parm;
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int ret = param_get(param_handle, &pwm_parm);
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if (ret != 0) {
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return ret;
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}
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value = pwm_parm;
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} else {
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PX4_ERR("param name '%s' not found", param_name);
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return -ENXIO;
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}
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} else {
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char *ep;
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value = strtol(option, &ep, 0);
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if (*ep != '\0') {
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return -EINVAL;
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}
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}
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return 0;
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}
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