patch-2.3.9 linux/arch/mips/sgi/kernel/promcon.c

• Lines: 74
• Date: Fri Jun 25 17:40:13 1999
• Orig file: v2.3.8/linux/arch/mips/sgi/kernel/promcon.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.8/linux/arch/mips/sgi/kernel/promcon.c linux/arch/mips/sgi/kernel/promcon.c
@@ -0,0 +1,73 @@
+/*
+ * Wrap-around code for a console using the
+ * SGI PROM io-routines.
+ *
+ * Copyright (c) 1999 Ulf Carlsson
+ *
+ * Derived from DECstation promcon.c
+ * Copyright (c) 1998 Harald Koerfgen 
+ */
+
+#include <linux/tty.h>
+#include <linux/major.h>
+#include <linux/ptrace.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/fs.h>
+
+#include <asm/sgialib.h>
+
+static void prom_console_write(struct console *co, const char *s,
+			       unsigned count)
+{
+    unsigned i;
+
+    /*
+     *    Now, do each character
+     */
+    for (i = 0; i < count; i++) {
+	if (*s == 10)
+	    prom_printf("%c", 13);
+	prom_printf("%c", *s++);
+    }
+}
+
+static int prom_console_wait_key(struct console *co)
+{
+    return prom_getchar();
+}
+
+__initfunc(static int prom_console_setup(struct console *co, char *options))
+{
+    return 0;
+}
+
+static kdev_t prom_console_device(struct console *c)
+{
+    return MKDEV(TTY_MAJOR, 64 + c->index);
+}
+
+static struct console sercons =
+{
+    "ttyS",
+    prom_console_write,
+    NULL,
+    prom_console_device,
+    prom_console_wait_key,
+    NULL,
+    prom_console_setup,
+    CON_PRINTBUFFER,
+    -1,
+    0,
+    NULL
+};
+
+/*
+ *    Register console.
+ */
+
+__initfunc(long sgi_prom_console_init(long kmem_start, long kmem_end))
+{
+    register_console(&sercons);
+    return kmem_start;
+}