sc114: fix console blocking

diff --git a/Kernel/platform-sc114/devtty.c b/Kernel/platform-sc114/devtty.c
index 69b299c..58c8422 100644 (file)
--- 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);
 }