From 9322e7bfed9d336377d588623357b93d02312afa Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Fri, 25 Mar 2022 13:10:20 -0700
Subject: UART FIFO Interrupting

---
 kernel/drivers/uart.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'kernel')

diff --git a/kernel/drivers/uart.c b/kernel/drivers/uart.c
index 33f9e82..bd12486 100644
--- a/kernel/drivers/uart.c
+++ b/kernel/drivers/uart.c
@@ -37,6 +37,8 @@ void uart_init(void)
 	store32((1<<4)|(1<<5)|(1<<6), UART0_LCRH);
 	// Mask all interrupts
 	store32((1<<1)|(1<<4)|(1<<5)|(1<<6)|(1<<7)|(1<<8)|(1<<9)|(1<<10), UART0_IMSC);
+	// Interrupt when FIFO is 1/8 full
+	store32((UART_FIFO_18 << 3) | (UART_FIFO_12 << 0), UART0_IFLS);
 	// Enable UART0
 	store32((1<<0)|(1<<8)|(1<<9), UART0_CR);
 }
-- 
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