main: hook up calibration stubs

I guess I will be finishing this later.

src/main.zig

@@ -4,6 +4,7 @@ const builtin = @import("builtin");
 const Config = @import("./Config.zig");
 const lj = @import("./labjack.zig");
 const RotCtl = @import("./RotCtl.zig");
+const YaesuController = @import("./YaesuController.zig");
 
 const udev = @import("udev_rules");
 
@@ -69,7 +70,26 @@ pub fn main() !u8 {
             log.err("rotator controller ceased unexpectedly! {s}", .{@errorName(err)});
             return 1;
         };
+    } else if (std.mem.eql(u8, args[1], commands.calibrate)) {
+        if (args.len < 3 or args.len > 4) {
+            printHelp(exename, .calibrate);
+            return 1;
+        }
 
+        loadConfigOrDefault(allocator, if (args.len == 4) args[3] else null) catch
+            return 1;
+        defer Config.deinit();
+
+        const routine = std.meta.stringToEnum(YaesuController.CalibrationRoutine, args[2]) orelse {
+            log.err("{s} is not a known calibration routine.", .{args[2]});
+            printHelp(exename, .calibrate);
+            return 1;
+        };
+
+        YaesuController.calibrate(allocator, routine) catch |err| {
+            log.err("Calibration failed: {s}", .{@errorName(err)});
+            return 1;
+        };
     } else if (std.mem.eql(u8, args[1], commands.help)) {
         if (args.len != 3) {
             printHelp(exename, .help);
@@ -271,7 +291,7 @@ const command_help = .{
         \\  Perform a calibration routine and write an updated configuration with its results.
         \\
         \\Arguments:
-        \\  routine      Must be one of `feedback` or `orientation`. The different calibration routines have
+        \\  routine      Must be either `feedback` or `orientation`. The different calibration routines have
         \\               different requirements. `orientation` calibration is a sun-pointing-based routine and
         \\               should be performed after `feedback` calibration is complete.
         \\  config_file  [Optional] the path of a config file to load. This file will be updated with the