diff --git a/src/platforms/common/CMakeLists.txt b/src/platforms/common/CMakeLists.txt index 7aa4c9b1dd..60963668a9 100644 --- a/src/platforms/common/CMakeLists.txt +++ b/src/platforms/common/CMakeLists.txt @@ -42,6 +42,7 @@ endif() px4_add_library(platforms__common module.cpp px4_getopt.c + px4_cli.cpp shutdown.cpp ${SRCS} ) diff --git a/src/platforms/common/px4_cli.cpp b/src/platforms/common/px4_cli.cpp new file mode 100644 index 0000000000..fcd57492e5 --- /dev/null +++ b/src/platforms/common/px4_cli.cpp @@ -0,0 +1,84 @@ +/**************************************************************************** + * + * Copyright (c) 2018 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#include +#include +#include + +#include +#include +#include + +int px4_get_parameter_value(const char *option, int &value) +{ + value = 0; + + /* check if this is a param name */ + if (strncmp("p:", option, 2) == 0) { + + const char *param_name = option + 2; + + /* user wants to use a param name */ + param_t param_handle = param_find(param_name); + + if (param_handle != PARAM_INVALID) { + + if (param_type(param_handle) != PARAM_TYPE_INT32) { + return -EINVAL; + } + + int32_t pwm_parm; + int ret = param_get(param_handle, &pwm_parm); + + if (ret != 0) { + return ret; + } + + value = pwm_parm; + + } else { + PX4_ERR("param name '%s' not found", param_name); + return -ENXIO; + } + + } else { + char *ep; + value = strtol(option, &ep, 0); + + if (*ep != '\0') { + return -EINVAL; + } + } + + return 0; +} diff --git a/src/platforms/px4_cli.h b/src/platforms/px4_cli.h new file mode 100644 index 0000000000..7ba92e34d9 --- /dev/null +++ b/src/platforms/px4_cli.h @@ -0,0 +1,54 @@ +/**************************************************************************** + * + * Copyright (c) 2018 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file px4_cli.h + * Helper methods for command-line parameters + */ + +#pragma once + + +/** + * Parse a CLI argument to an integer. There are 2 valid formats: + * - 'p:' + * in this case the parameter is loaded from an integer parameter + * - + * an integer value, so just a string to integer conversion is done + * @param option CLI argument + * @param value returned value + * @return 0 on success, -errno otherwise + */ +int px4_get_parameter_value(const char *option, int &value); + +