JQuery :: Call Variable Number Of Times With Different Parameters?

I have a function that I call a variable number of times and I need to know when the calls have *all* been completed. How would I build that? As I understand the deferreds, the $.when syntax is as follows:
$.when(dfrd_func1('a'), dfrd_func2('b'),
dfrd_func3('c')).done( function() {
console.log("All Done");} );
will send "All done" to the console once each of the functions are complete.

So, I have the *same* function that I need to call a variable number of times with different parameters, i.e. :
$.when(dfrd_func('a'), dfrd_func('b'), dfrd_func('c'), ...).done(function() {console.log("All Done")});
So, is my approach wrong? Is there some way to build an array of functions that could be executed?