1 files changed, 74 insertions, 0 deletions

diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
new file mode 100644
index 000000000000..e1c3fc87484d
--- /dev/null
+++ b/arch/sparc/prom/console_64.c
@@ -0,0 +1,74 @@
+/* console.c: Routines that deal with sending and receiving IO
+ *            to/from the current console device using the PROM.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/system.h>
+#include <linux/string.h>
+
+extern int prom_stdin, prom_stdout;
+
+/* Non blocking get character from console input device, returns -1
+ * if no input was taken.  This can be used for polling.
+ */
+inline int
+prom_nbgetchar(void)
+{
+        char inc;
+
+        if (p1275_cmd("read", P1275_ARG(1,P1275_ARG_OUT_BUF)|
+                              P1275_INOUT(3,1),
+                              prom_stdin, &inc, P1275_SIZE(1)) == 1)
+                return inc;
+        else
+                return -1;
+}
+
+/* Non blocking put character to console device, returns -1 if
+ * unsuccessful.
+ */
+inline int
+prom_nbputchar(char c)
+{
+        char outc;
+        
+        outc = c;
+        if (p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)|
+                               P1275_INOUT(3,1),
+                               prom_stdout, &outc, P1275_SIZE(1)) == 1)
+                return 0;
+        else
+                return -1;
+}
+
+/* Blocking version of get character routine above. */
+char
+prom_getchar(void)
+{
+        int character;
+        while((character = prom_nbgetchar()) == -1) ;
+        return (char) character;
+}
+
+/* Blocking version of put character routine above. */
+void
+prom_putchar(char c)
+{
+        prom_nbputchar(c);
+        return;
+}
+
+void
+prom_puts(const char *s, int len)
+{
+        p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)|
+                           P1275_INOUT(3,1),
+                           prom_stdout, s, P1275_SIZE(len));
+}