From Chapter 1:
The truth probably is that whoever actually smoked the first pipe, it was Raleigh who brought the practice into common use. It is highly probable, also, that Raleigh was initiated in the art of smoking by Thomas Hariot. This was made clear, I think, by the late Dr. Brushfield in the second of the valuable papers on matters connected with the life and achievements of Sir Walter, which he contributed under the title of "Raleghana" to the "Transactions" of the Devonshire Association. Hariot was sent out by Raleigh for the specific purpose of inquiring into and reporting upon the natural productions of Virginia. He returned in 1586, and in 1588 published the results of his researches in a thin quarto with an extremely long-winded title beginning "A briefe and true report of the new found land of Virginia" and continuing for a further 138 words.

From Chapter 5:
The year 1660 that restored Charles II to his throne, restored a gaiety and brightness, not to say frivolity of tone, that had long been absent from English life. The following song in praise of tobacco, taken from a collection which was printed in 1660, is touched with the spirit of the time; though it is really founded on, and to no small extent taken from, some verses in praise of tobacco written by Samuel Rowlands in his "Knave of Clubs," 1611:

To feed on flesh is gluttony,
It maketh men fat like swine;
But is not he a frugal man
That on a leaf can dine?
He needs no linnen for to foul
His fingers' ends to wipe,
That has his kitchin in a box,
And roast meat in a pipe.
The cause wherefore few rich men's sons
Prove disputants in schools,
Is that their fathers fed on flesh,
And they begat fat fools.
This fulsome feeding cloggs the brain
And doth the stomach choak
But he's a brave spark that can dine
With one light dish of smoak.

There is nothing to show that King Charles smoked, nor what his personal attitude towards tobacco may have been.