From: Alan Cox <alan@linux.intel.com>
Date: Sat, 19 Jan 2019 21:32:30 +0000 (+0000)
Subject: sc114: fix console blocking
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=a9a6939b2388d8eb1ef47c7f199c05c4ba81d781;p=FUZIX.git

sc114: fix console blocking
---

diff --git a/Kernel/platform-sc114/devtty.c b/Kernel/platform-sc114/devtty.c
index 69b299c7..58c8422e 100644
--- a/Kernel/platform-sc114/devtty.c
+++ b/Kernel/platform-sc114/devtty.c
@@ -127,7 +127,9 @@ void tty_data_consumed(uint8_t minor)
 /* kernel writes to system console -- never sleep! */
 void kputchar(char c)
 {
-	tty_putc(TTYDEV - 512, c);
+	while(tty_writeready(TTYDEV - 512) != TTY_READY_NOW);
 	if (c == '\n')
 		tty_putc(TTYDEV - 512, '\r');
+	while(tty_writeready(TTYDEV - 512) != TTY_READY_NOW);
+	tty_putc(TTYDEV - 512, c);
 }