Partial implementation of network config, calibration
This commit is contained in:
parent
27fc4236e4
commit
67c6a44f22
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@ -14,6 +14,7 @@
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#include <stdio.h>
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#include <algorithm>
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#include <chrono>
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#include <fstream>
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#include <functional>
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#include <istream>
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#include <map>
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@ -34,6 +35,8 @@ using namespace puzzlefw;
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namespace asio = boost::asio;
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/* ******** Utility functions ******** */
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/** Return true if the string ends with the suffix. */
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bool str_ends_with(const std::string& value, const std::string& suffix)
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{
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@ -102,32 +105,121 @@ bool parse_float(const std::string& s, double& v)
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}
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// Forward declaration.
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class ControlServer;
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/* ******** Network configuration ******** */
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enum NetworkConfigMode { NETCFG_INVALID = 0, NETCFG_DHCP, NETCFG_STATIC };
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/**
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* The CommandHandler handles commands from remote clients.
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*/
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class CommandHandler
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{
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public:
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// IDN response fields.
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static constexpr const char * IDN_MANUFACTURER = "Jigsaw";
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static constexpr const char * IDN_MODEL = "PuzzleFw";
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// Configuration files.
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static constexpr const char * CFG_FILE_CALIBRATION =
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"/var/lib/puzzlefw/cfg/calibration.conf";
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static constexpr const char * CFG_FILE_NETWORK =
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"/var/lib/puzzlefw/cfg/network.conf";
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enum ExitStatus {
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EXIT_ERROR = 1,
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EXIT_HALT = 10,
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EXIT_REBOOT = 11
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struct NetworkConfig {
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NetworkConfigMode mode;
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asio::ip::address_v4 ipaddr;
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asio::ip::address_v4 netmask;
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asio::ip::address_v4 gateway;
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NetworkConfig() : mode(NETCFG_INVALID) { }
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};
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/** Read network configuration from file. */
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bool read_network_config(const char *filename, NetworkConfig& ipcfg)
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{
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ipcfg = NetworkConfig();
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std::ifstream is(filename);
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if (!is) {
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log(LOG_ERROR, "Can not read %s", filename);
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return false;
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}
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std::string line;
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while (std::getline(is, line)) {
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boost::system::error_code ec{};
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size_t p = line.find_last_not_of(" \t\n\v\f\r");
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if (p != line.npos) {
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line.erase(p + 1);
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}
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if (line == "MODE=dhcp") {
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ipcfg.mode = NETCFG_DHCP;
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}
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if (line == "MODE=static") {
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ipcfg.mode = NETCFG_STATIC;
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}
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if (line.compare(0, 7, "IPADDR=") == 0) {
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ipcfg.ipaddr = asio::ip::make_address_v4(line.substr(7), ec);
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}
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if (line.compare(0, 8, "NETMASK=") == 0) {
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ipcfg.netmask = asio::ip::make_address_v4(line.substr(8), ec);
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}
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if (line.compare(0, 8, "GATEWAY=") == 0 && line.size() > 8) {
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ipcfg.gateway = asio::ip::make_address_v4(line.substr(8), ec);
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}
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if (ec) {
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return false;
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}
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}
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return ((ipcfg.mode == NETCFG_DHCP)
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|| (ipcfg.mode == NETCFG_STATIC
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&& (! ipcfg.ipaddr.is_unspecified())
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&& (! ipcfg.netmask.is_unspecified())));
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}
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/** Parse network configuration arguments. */
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bool parse_network_config(const std::vector<std::string>& args,
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NetworkConfig& ipcfg,
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std::string& errmsg)
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{
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ipcfg = NetworkConfig{};
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errmsg = std::string();
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if (args.size() == 1 && str_to_lower(args[0]) == "dhcp") {
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ipcfg.mode = NETCFG_DHCP;
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return true;
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}
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if ((args.size() == 3 || args.size() == 4)
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&& str_to_lower(args[0]) == "static") {
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ipcfg.mode = NETCFG_STATIC;
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boost::system::error_code ec{};
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ipcfg.ipaddr = asio::ip::make_address_v4(args[1], ec);
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if (ec || ipcfg.ipaddr.is_unspecified()) {
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errmsg = "Invalid IP address";
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return false;
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}
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ipcfg.netmask = asio::ip::make_address_v4(args[2], ec);
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if (ec || ipcfg.netmask.is_unspecified()) {
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errmsg = "Invalid netmask";
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return false;
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}
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// Check that netmask describes a valid prefix.
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unsigned int mask = ipcfg.netmask.to_uint();
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if (mask & ((~mask) >> 1)) {
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errmsg = "Invalid netmask";
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return false;
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}
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// Optional gateway address.
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if (args.size() == 4) {
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ipcfg.gateway = asio::ip::make_address_v4(args[3], ec);
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if (ec) {
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errmsg = "Invalid gateway";
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return false;
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}
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}
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return true;
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}
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errmsg = "Invalid address mode";
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return false;
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}
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/* ******** Calibration ******** */
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enum RangeSpec {
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RANGE_NONE = 0,
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RANGE_LO = 1,
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@ -146,6 +238,149 @@ public:
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ChannelCalibration channel_cal[4];
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};
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/** Read calibration from file. */
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void read_calibration_file(const char *filename, Calibration& cal)
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{
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// Set defaults in case calibration is missing or incomplete.
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for (unsigned int channel = 0; channel < 4; channel++) {
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cal.channel_cal[channel].range_spec = RANGE_LO;
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cal.channel_cal[channel].offset_lo = 8192;
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cal.channel_cal[channel].offset_hi = 8192;
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cal.channel_cal[channel].gain_lo = -8191;
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cal.channel_cal[channel].gain_hi = -409;
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}
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std::ifstream is(filename);
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if (!is) {
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log(LOG_ERROR, "Can not read calibration file");
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return;
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}
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std::string line;
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while (std::getline(is, line)) {
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size_t p = line.find_last_not_of(" \t\n\v\f\r");
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if (p != line.npos) {
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line.erase(p + 1);
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}
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p = line.find('=');
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if (p == line.npos) {
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continue;
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}
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std::string label = line.substr(0, p);
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std::string value = line.substr(p + 1);
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if (label.size() < 4
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|| label[0] != 'C'
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|| label[1] != 'H'
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|| label[2] < '1'
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|| label[2] > '4'
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|| label[3] != '_') {
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continue;
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}
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unsigned int channel = label[2] - '1';
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label.erase(0, 4);
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if (label == "RANGE") {
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if (value == "LO") {
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cal.channel_cal[channel].range_spec = RANGE_LO;
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}
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if (value == "HI") {
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cal.channel_cal[channel].range_spec = RANGE_HI;
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}
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}
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if (label == "OFFSET_LO") {
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parse_float(value, cal.channel_cal[channel].offset_lo);
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}
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if (label == "OFFSET_HI") {
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parse_float(value, cal.channel_cal[channel].offset_hi);
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}
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if (label == "GAIN_LO") {
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parse_float(value, cal.channel_cal[channel].gain_lo);
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}
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if (label == "GAIN_HI") {
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parse_float(value, cal.channel_cal[channel].gain_hi);
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}
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}
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}
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/** Write calibration to file. */
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bool write_calibration_file(const char *filename, const Calibration& cal)
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{
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std::ofstream os(filename);
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if (!os) {
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log(LOG_ERROR, "Can not write calibration file");
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return false;
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}
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for (unsigned int channel = 0; channel < 4; channel++) {
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std::string line;
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line = str_format("CH%u_RANGE=%s\n", channel + 1,
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(cal.channel_cal[channel].range_spec == RANGE_HI) ? "HI" : "LO");
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os << line;
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line = str_format("CH%u_OFFSET_LO=%.6f\n", channel + 1,
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cal.channel_cal[channel].offset_lo);
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os << line;
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line = str_format("CH%u_OFFSET_HI=%.6f\n", channel + 1,
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cal.channel_cal[channel].offset_hi);
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os << line;
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line = str_format("CH%u_GAIN_LO=%.6f\n", channel + 1,
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cal.channel_cal[channel].gain_lo);
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os << line;
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line = str_format("CH%u_GAIN_HI=%.6f\n", channel + 1,
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cal.channel_cal[channel].gain_hi);
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os << line;
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}
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if (!os) {
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log(LOG_ERROR, "Can not write calibration file");
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return false;
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}
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return true;
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}
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/* ******** class CommandHandler ******** */
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// Forward declaration.
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class ControlServer;
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/**
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* The CommandHandler handles commands from remote clients.
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*/
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class CommandHandler
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{
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public:
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// IDN response fields.
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static constexpr const char * IDN_MANUFACTURER = "Jigsaw";
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static constexpr const char * IDN_MODEL = "PuzzleFw";
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// Configuration files.
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static constexpr const char * CFG_FILE_CALIBRATION =
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"/var/lib/puzzlefw/cfg/calibration.conf";
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static constexpr const char * CFG_FILE_NETWORK_SAVED =
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"/var/lib/puzzlefw/cfg/network.conf";
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static constexpr const char * CFG_FILE_NETWORK_ACTIVE =
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"/var/lib/puzzlefw/cfg/network_active.conf";
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enum ExitStatus {
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EXIT_ERROR = 1,
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EXIT_HALT = 10,
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EXIT_REBOOT = 11
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};
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struct CommandEnvironment {
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int channel;
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RangeSpec range_spec;
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@ -206,7 +441,7 @@ public:
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*/
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void reset()
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{
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read_calibration();
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read_calibration_file(CFG_FILE_CALIBRATION, m_calibration);
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m_device.set_adc_simulation_enabled(false);
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m_device.set_digital_simulation_enabled(false);
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m_device.set_trigger_mode(TRIG_NONE);
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@ -260,10 +495,10 @@ public:
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&& action.compare(0, 6, "ain:ch") == 0
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&& action[7] == ':') {
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char channel_digit = action[6];
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if (channel_digit < '0' || channel_digit > '3') {
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if (channel_digit < '1' || channel_digit > '4') {
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return err_unknown_command();
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}
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env.channel = channel_digit - '0';
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env.channel = channel_digit - '1';
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action[6] = 'N'; // mark channel index
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}
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@ -323,14 +558,14 @@ public:
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// Handle command IPCFG.
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if (action == "ipcfg" || action == "ipcfg:saved") {
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if (tokens.size() < 3) {
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if (tokens.size() < 2) {
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return err_missing_argument();
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}
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if (tokens.size() > 4) {
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if (tokens.size() > 5) {
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return err_unexpected_argument();
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}
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const std::string& gw = (tokens.size() > 3) ? tokens[3] : "";
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return cmd_ipcfg(env, tokens[1], tokens[2], gw);
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tokens.erase(tokens.begin());
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return cmd_ipcfg(env, tokens);
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}
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return err_unknown_command();
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@ -338,27 +573,13 @@ public:
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private:
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/** Asynchronously stop control and/or data servers. */
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void stop_server(bool stop_control, std::function<void()> handler);
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void stop_server(std::function<void()> handler);
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void stop_data_servers(unsigned int idx, std::function<void()> handler);
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/** Asynchronously start control and/or data servers. */
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void start_server(bool start_control);
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void start_server();
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void start_data_servers(unsigned int idx);
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/** Read calibration from file. */
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void read_calibration()
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{
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for (int c = 0; c < 4; c++) {
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m_calibration.channel_cal[c].range_spec = RANGE_LO;
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m_calibration.channel_cal[c].offset_lo = 8192;
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m_calibration.channel_cal[c].offset_hi = 8192;
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m_calibration.channel_cal[c].gain_lo = -8191;
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m_calibration.channel_cal[c].gain_hi = -409;
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}
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// TODO - read from file
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}
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/** Convert a raw ADC sample to Volt. */
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double convert_sample_to_volt(unsigned int channel, unsigned int sample)
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{
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@ -456,7 +677,7 @@ private:
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}
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/** Handle command AIN:CHn:OFFS[:range]? */
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std::string qry_channel_offs(CommandEnvironment env)
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std::string qry_channel_offset(CommandEnvironment env)
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{
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ChannelCalibration& cal = m_calibration.channel_cal[env.channel];
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RangeSpec range_spec = env.range_spec;
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@ -608,8 +829,25 @@ private:
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/** Handle command IPCFG[:SAVED]? */
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std::string qry_ipcfg(CommandEnvironment env)
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{
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// TODO - read network config from file
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return "ERROR";
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const char *filename = env.saved_flag ? CFG_FILE_NETWORK_SAVED
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: CFG_FILE_NETWORK_ACTIVE;
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NetworkConfig ipcfg;
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if (! read_network_config(filename, ipcfg)) {
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return "ERROR Unconfigured";
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}
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std::string result;
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if (ipcfg.mode == NETCFG_DHCP) {
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return "DHCP";
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}
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if (ipcfg.mode == NETCFG_STATIC) {
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return "STATIC "
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+ ipcfg.ipaddr.to_string()
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+ " " + ipcfg.netmask.to_string()
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+ " " + ipcfg.gateway.to_string();
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}
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return "ERROR Unconfigured";
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}
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/** Handle command RESET */
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@ -706,7 +944,7 @@ private:
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}
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/** Handle command AIN:CHn:OFFS[:range] */
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std::string cmd_channel_offs(CommandEnvironment env,
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std::string cmd_channel_offset(CommandEnvironment env,
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const std::string& arg)
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{
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double offs;
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@ -962,18 +1200,24 @@ private:
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/** Handle command AIN:MINMAX:CLEAR */
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std::string cmd_cal_save(CommandEnvironment env)
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{
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// TODO - write calibration to file
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if (! write_calibration_file(CFG_FILE_CALIBRATION, m_calibration)) {
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return "ERROR Can not write calibration";
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}
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// TODO - invoke script to save to SD card
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return "ERROR";
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}
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/** Handle command IPCFG */
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std::string cmd_ipcfg(CommandEnvironment env,
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const std::string& ipaddr,
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const std::string& netmask,
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const std::string& gateway)
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const std::vector<std::string>& args)
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{
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// TODO -- parse and check address
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NetworkConfig ipcfg;
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std::string errmsg;
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if (! parse_network_config(args, ipcfg, errmsg)) {
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return "ERROR " + errmsg;
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}
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// TODO -- activate or save address, restart networking if needed
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return "ERROR";
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}
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@ -987,8 +1231,8 @@ private:
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{ "ain:channels:count?", &CommandHandler::qry_channels_count },
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{ "ain:channels:active?", &CommandHandler::qry_channels_active },
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{ "ain:chN:range?", &CommandHandler::qry_channel_range },
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{ "ain:chN:offs?", &CommandHandler::qry_channel_offs },
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{ "ain:chN:offs:RR?", &CommandHandler::qry_channel_offs },
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{ "ain:chN:offset?", &CommandHandler::qry_channel_offset },
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{ "ain:chN:offset:RR?", &CommandHandler::qry_channel_offset },
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{ "ain:chN:gain?", &CommandHandler::qry_channel_gain },
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{ "ain:chN:gain:RR?", &CommandHandler::qry_channel_gain },
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{ "ain:chN:sample?", &CommandHandler::qry_channel_sample },
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@ -1025,8 +1269,8 @@ private:
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command_table_one_arg = {
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{ "ain:channels:active", &CommandHandler::cmd_channels_active },
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{ "ain:chN:range", &CommandHandler::cmd_channel_range },
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{ "ain:chN:offs", &CommandHandler::cmd_channel_offs },
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{ "ain:chN:offs:RR", &CommandHandler::cmd_channel_offs },
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{ "ain:chN:offset", &CommandHandler::cmd_channel_offset },
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{ "ain:chN:offset:RR", &CommandHandler::cmd_channel_offset },
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{ "ain:chN:gain", &CommandHandler::cmd_channel_gain },
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{ "ain:chN:gain:RR", &CommandHandler::cmd_channel_gain },
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{ "ain:srate", &CommandHandler::cmd_srate },
|
||||
|
|
@ -1052,6 +1296,8 @@ private:
|
|||
};
|
||||
|
||||
|
||||
/* ******** class ControlServer ******** */
|
||||
|
||||
/**
|
||||
* Manage TCP connections for remote control.
|
||||
*/
|
||||
|
|
@ -1374,10 +1620,8 @@ private:
|
|||
|
||||
/* ******** Methods for class CommandHandler ******** */
|
||||
|
||||
void CommandHandler::stop_server(bool stop_control,
|
||||
std::function<void()> handler)
|
||||
void CommandHandler::stop_server(std::function<void()> handler)
|
||||
{
|
||||
if (stop_control) {
|
||||
asio::post(m_control_server->get_executor(),
|
||||
[this,handler]() {
|
||||
m_control_server->stop_server();
|
||||
|
|
@ -1386,9 +1630,6 @@ void CommandHandler::stop_server(bool stop_control,
|
|||
stop_data_servers(0, handler);
|
||||
});
|
||||
});
|
||||
} else {
|
||||
stop_data_servers(0, handler);
|
||||
}
|
||||
}
|
||||
|
||||
void CommandHandler::stop_data_servers(unsigned int idx,
|
||||
|
|
@ -1408,9 +1649,8 @@ void CommandHandler::stop_data_servers(unsigned int idx,
|
|||
}
|
||||
}
|
||||
|
||||
void CommandHandler::start_server(bool start_control)
|
||||
void CommandHandler::start_server()
|
||||
{
|
||||
if (start_control) {
|
||||
asio::post(m_control_server->get_executor(),
|
||||
[this]() {
|
||||
m_control_server->start_server();
|
||||
|
|
@ -1419,9 +1659,6 @@ void CommandHandler::start_server(bool start_control)
|
|||
start_data_servers(0);
|
||||
});
|
||||
});
|
||||
} else {
|
||||
start_data_servers(0);
|
||||
}
|
||||
}
|
||||
|
||||
void CommandHandler::start_data_servers(unsigned int idx)
|
||||
|
|
@ -1522,9 +1759,8 @@ int run_remote_control_server(
|
|||
io.run();
|
||||
|
||||
// TODO -- multi-threading
|
||||
// TODO -- get exit status from command handler
|
||||
|
||||
return 0;
|
||||
return command_handler.exit_status();
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue