Sorry to hear this, visiting, as long as he wants people around is one of the best things that you can take him. Time is our most valuable and precious commodity, if he likes a sip of whiskey every now and then, take him some.
When my friend Phil was basically bedridden from his cancer, I was there every day, he and I and a few other Porsche guys would meet every Friday at a local Hooters, for lunch. I was able to get the manager to send he girls who generally served us, with Phil’s favorite lunch to his house and serve him in his hospital bed, which was in his living room.
One more, very important, but also can be very difficult, is be cheerful and maintain a smile on your face at all times (I used up my ability to smile because I used them up).
Paul, you have my number and email, as many know, I have way too much to experience in these situations.
Prayers for you and the family