Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 146 insertions, 0 deletions

diff --git a/arch/sparc64/prom/console.c b/arch/sparc64/prom/console.c
new file mode 100644
index 00000000000..028a53fcb1e
--- /dev/null
+++ b/arch/sparc64/prom/console.c
@@ -0,0 +1,146 @@
+/* $Id: console.c,v 1.9 1997/10/29 07:41:43 ecd Exp $
+ * 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@caip.rutgers.edu)
+ * 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(char *s, int len)
+{
+	p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)|
+			   P1275_INOUT(3,1),
+			   prom_stdout, s, P1275_SIZE(len));
+}
+
+/* Query for input device type */
+enum prom_input_device
+prom_query_input_device(void)
+{
+	int st_p;
+	char propb[64];
+
+	st_p = prom_inst2pkg(prom_stdin);
+	if(prom_node_has_property(st_p, "keyboard"))
+		return PROMDEV_IKBD;
+	prom_getproperty(st_p, "device_type", propb, sizeof(propb));
+	if(strncmp(propb, "serial", 6))
+		return PROMDEV_I_UNK;
+	/* FIXME: Is there any better way how to find out? */	
+	memset(propb, 0, sizeof(propb));
+	st_p = prom_finddevice ("/options");
+	prom_getproperty(st_p, "input-device", propb, sizeof(propb));
+
+	/*
+	 * If we get here with propb == 'keyboard', we are on ttya, as
+	 * the PROM defaulted to this due to 'no input device'.
+	 */
+	if (!strncmp(propb, "keyboard", 8))
+		return PROMDEV_ITTYA;
+
+	if (strncmp (propb, "tty", 3) || !propb[3])
+		return PROMDEV_I_UNK;
+	switch (propb[3]) {
+		case 'a': return PROMDEV_ITTYA;
+		case 'b': return PROMDEV_ITTYB;
+		default: return PROMDEV_I_UNK;
+	}
+}
+
+/* Query for output device type */
+
+enum prom_output_device
+prom_query_output_device(void)
+{
+	int st_p;
+	char propb[64];
+	int propl;
+
+	st_p = prom_inst2pkg(prom_stdout);
+	propl = prom_getproperty(st_p, "device_type", propb, sizeof(propb));
+	if (propl >= 0 && propl == sizeof("display") &&
+	    strncmp("display", propb, sizeof("display")) == 0)
+		return PROMDEV_OSCREEN;
+	if(strncmp("serial", propb, 6))
+		return PROMDEV_O_UNK;
+	/* FIXME: Is there any better way how to find out? */	
+	memset(propb, 0, sizeof(propb));
+	st_p = prom_finddevice ("/options");
+	prom_getproperty(st_p, "output-device", propb, sizeof(propb));
+
+	/*
+	 * If we get here with propb == 'screen', we are on ttya, as
+	 * the PROM defaulted to this due to 'no input device'.
+	 */
+	if (!strncmp(propb, "screen", 6))
+		return PROMDEV_OTTYA;
+
+	if (strncmp (propb, "tty", 3) || !propb[3])
+		return PROMDEV_O_UNK;
+	switch (propb[3]) {
+		case 'a': return PROMDEV_OTTYA;
+		case 'b': return PROMDEV_OTTYB;
+		default: return PROMDEV_O_UNK;
+	}
+}