From fba3d0460750fb4123d66f55315dbd9b34cc3d90 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= Date: Sat, 29 Dec 2018 00:28:04 +0100 Subject: cam: add utility to control cameras MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Provide a utility to interact with cameras. This initial state is limited and only supports listing cameras in the system and selecting a camera to interact with. There is not much a interacting possible yet with a camera so the tool simply exercise the API to get hold of a camera. Signed-off-by: Niklas Söderlund Acked-by: Laurent Pinchart --- src/cam/cam.cpp | 144 ++++++++++++++++++++++++++++++++++++++++++++++++++++ src/cam/meson.build | 7 +++ src/meson.build | 1 + 3 files changed, 152 insertions(+) create mode 100644 src/cam/cam.cpp create mode 100644 src/cam/meson.build (limited to 'src') diff --git a/src/cam/cam.cpp b/src/cam/cam.cpp new file mode 100644 index 00000000..0f795be7 --- /dev/null +++ b/src/cam/cam.cpp @@ -0,0 +1,144 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2019, Google Inc. + * + * main.cpp - cam-ctl a tool to interact with the library + */ + +#include +#include +#include +#include +#include + +#include + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) + +using namespace std; +using namespace libcamera; + +enum Option { + OptCamera = 'c', + OptHelp = 'h', + OptList = 'l', + OptLast = 0, +}; + +struct OptionInfo { + Option id; + const char *name; + const char *arguments; + const char *description; +}; + +static struct OptionInfo option_info[] = { + { OptCamera, "camera", "", "Specify which camera to operate on" }, + { OptHelp, "help", nullptr, "Display this help message" }, + { OptList, "list", nullptr, "List all cameras" }, + { OptLast, nullptr, nullptr, nullptr }, +}; + +std::map options; + +void usage() +{ + struct OptionInfo *info; + + cout << "Options:" << endl; + for (info = option_info; info->id != OptLast; info++) { + string arg(info->name); + + if (info->arguments) + arg += string(" ") + info->arguments; + + cout << " -" << static_cast(info->id) << " --" << + setw(20) << left << arg << " - " << + info->description << endl; + } +} + +int parseOptions(int argc, char **argv) +{ + char short_options[ARRAY_SIZE(option_info) * 2 + 1]; + struct option long_options[ARRAY_SIZE(option_info)]; + struct OptionInfo *info; + unsigned ids = 0, idl = 0; + + memset(short_options, 0, sizeof(short_options)); + memset(long_options, 0, sizeof(long_options)); + + for (info = option_info; info->id != OptLast; info++) { + short_options[ids++] = info->id; + if (info->arguments) + short_options[ids++] = ':'; + + long_options[idl].name = info->name; + long_options[idl].has_arg = + info->arguments ? required_argument : no_argument; + long_options[idl].flag = 0; + long_options[idl].val = info->id; + idl++; + } + + while (true) { + int c = getopt_long(argc, argv, short_options, long_options, nullptr); + + if (c == -1) + break; + + if (!isalpha(c)) + return EXIT_FAILURE; + + options[static_cast