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, 205 insertions, 0 deletions

diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
new file mode 100644
index 000000000000..e604d7c87695
--- /dev/null
+++ b/arch/um/drivers/stdio_console.c
@@ -0,0 +1,205 @@
+/* 
+ * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include "linux/config.h"
+#include "linux/posix_types.h"
+#include "linux/tty.h"
+#include "linux/tty_flip.h"
+#include "linux/types.h"
+#include "linux/major.h"
+#include "linux/kdev_t.h"
+#include "linux/console.h"
+#include "linux/string.h"
+#include "linux/sched.h"
+#include "linux/list.h"
+#include "linux/init.h"
+#include "linux/interrupt.h"
+#include "linux/slab.h"
+#include "linux/hardirq.h"
+#include "asm/current.h"
+#include "asm/irq.h"
+#include "stdio_console.h"
+#include "line.h"
+#include "chan_kern.h"
+#include "user_util.h"
+#include "kern_util.h"
+#include "irq_user.h"
+#include "mconsole_kern.h"
+#include "init.h"
+#include "2_5compat.h"
+
+#define MAX_TTYS (16)
+
+/* ----------------------------------------------------------------------------- */
+
+/* Referenced only by tty_driver below - presumably it's locked correctly
+ * by the tty driver.
+ */
+
+static struct tty_driver *console_driver;
+
+void stdio_announce(char *dev_name, int dev)
+{
+	printk(KERN_INFO "Virtual console %d assigned device '%s'\n", dev,
+	       dev_name);
+}
+
+static struct chan_opts opts = {
+	.announce 	= stdio_announce,
+	.xterm_title	= "Virtual Console #%d",
+	.raw		= 1,
+	.tramp_stack 	= 0,
+	.in_kernel 	= 1,
+};
+
+static int con_config(char *str);
+static int con_get_config(char *dev, char *str, int size, char **error_out);
+static int con_remove(char *str);
+
+static struct line_driver driver = {
+	.name 			= "UML console",
+	.device_name 		= "tty",
+	.devfs_name 		= "vc/",
+	.major 			= TTY_MAJOR,
+	.minor_start 		= 0,
+	.type 		 	= TTY_DRIVER_TYPE_CONSOLE,
+	.subtype 	 	= SYSTEM_TYPE_CONSOLE,
+	.read_irq 		= CONSOLE_IRQ,
+	.read_irq_name 		= "console",
+	.write_irq 		= CONSOLE_WRITE_IRQ,
+	.write_irq_name 	= "console-write",
+	.symlink_from 		= "ttys",
+	.symlink_to 		= "vc",
+	.mc  = {
+		.name  		= "con",
+		.config 	= con_config,
+		.get_config 	= con_get_config,
+		.remove 	= con_remove,
+	},
+};
+
+static struct lines console_lines = LINES_INIT(MAX_TTYS);
+
+/* The array is initialized by line_init, which is an initcall.  The 
+ * individual elements are protected by individual semaphores.
+ */
+struct line vts[MAX_TTYS] = { LINE_INIT(CONFIG_CON_ZERO_CHAN, &driver),
+			      [ 1 ... MAX_TTYS - 1 ] = 
+			      LINE_INIT(CONFIG_CON_CHAN, &driver) };
+
+static int con_config(char *str)
+{
+	return(line_config(vts, sizeof(vts)/sizeof(vts[0]), str));
+}
+
+static int con_get_config(char *dev, char *str, int size, char **error_out)
+{
+	return(line_get_config(dev, vts, sizeof(vts)/sizeof(vts[0]), str, 
+			       size, error_out));
+}
+
+static int con_remove(char *str)
+{
+	return(line_remove(vts, sizeof(vts)/sizeof(vts[0]), str));
+}
+
+static int con_open(struct tty_struct *tty, struct file *filp)
+{
+	return line_open(vts, tty, &opts);
+}
+
+static int con_init_done = 0;
+
+static struct tty_operations console_ops = {
+	.open 	 		= con_open,
+	.close 	 		= line_close,
+	.write 	 		= line_write,
+ 	.write_room		= line_write_room,
+	.chars_in_buffer 	= line_chars_in_buffer,
+	.set_termios 		= line_set_termios,
+	.ioctl 	 		= line_ioctl,
+};
+
+static void uml_console_write(struct console *console, const char *string,
+			  unsigned len)
+{
+	struct line *line = &vts[console->index];
+
+	down(&line->sem);
+	console_write_chan(&line->chan_list, string, len);
+	up(&line->sem);
+}
+
+static struct tty_driver *uml_console_device(struct console *c, int *index)
+{
+	*index = c->index;
+	return console_driver;
+}
+
+static int uml_console_setup(struct console *co, char *options)
+{
+	struct line *line = &vts[co->index];
+
+	return console_open_chan(line,co,&opts);
+}
+
+static struct console stdiocons = {
+	.name		= "tty",
+	.write		= uml_console_write,
+	.device		= uml_console_device,
+	.setup		= uml_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+	.data           = &vts,
+};
+
+int stdio_init(void)
+{
+	char *new_title;
+
+	console_driver = line_register_devfs(&console_lines, &driver,
+					     &console_ops, vts,
+					     ARRAY_SIZE(vts));
+	if (NULL == console_driver)
+		return -1;
+	printk(KERN_INFO "Initialized stdio console driver\n");
+
+	lines_init(vts, sizeof(vts)/sizeof(vts[0]));
+
+	new_title = add_xterm_umid(opts.xterm_title);
+	if(new_title != NULL)
+		opts.xterm_title = new_title;
+
+	con_init_done = 1;
+	register_console(&stdiocons);
+	return(0);
+}
+late_initcall(stdio_init);
+
+static void console_exit(void)
+{
+	if (!con_init_done)
+		return;
+	close_lines(vts, sizeof(vts)/sizeof(vts[0]));
+}
+__uml_exitcall(console_exit);
+
+static int console_chan_setup(char *str)
+{
+	return(line_setup(vts, sizeof(vts)/sizeof(vts[0]), str, 1));
+}
+__setup("con", console_chan_setup);
+__channel_help(console_chan_setup, "con");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */