Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / um / drivers / chan_user.h

diff --git a/kernel/arch/um/drivers/chan_user.h b/kernel/arch/um/drivers/chan_user.h
new file mode 100644 (file)
index 0000000..03f1b56
--- /dev/null
+++ b/kernel/arch/um/drivers/chan_user.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __CHAN_USER_H__
+#define __CHAN_USER_H__
+
+#include <init.h>
+
+struct chan_opts {
+       void (*const announce)(char *dev_name, int dev);
+       char *xterm_title;
+       const int raw;
+};
+
+struct chan_ops {
+       char *type;
+       void *(*init)(char *, int, const struct chan_opts *);
+       int (*open)(int, int, int, void *, char **);
+       void (*close)(int, void *);
+       int (*read)(int, char *, void *);
+       int (*write)(int, const char *, int, void *);
+       int (*console_write)(int, const char *, int);
+       int (*window_size)(int, void *, unsigned short *, unsigned short *);
+       void (*free)(void *);
+       int winch;
+};
+
+extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops,
+       tty_ops, xterm_ops;
+
+extern void generic_close(int fd, void *unused);
+extern int generic_read(int fd, char *c_out, void *unused);
+extern int generic_write(int fd, const char *buf, int n, void *unused);
+extern int generic_console_write(int fd, const char *buf, int n);
+extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
+                              unsigned short *cols_out);
+extern void generic_free(void *data);
+
+struct tty_port;
+extern void register_winch(int fd,  struct tty_port *port);
+extern void register_winch_irq(int fd, int tty_fd, int pid,
+                              struct tty_port *port, unsigned long stack);
+
+#define __channel_help(fn, prefix) \
+__uml_help(fn, prefix "[0-9]*=<channel description>\n" \
+"    Attach a console or serial line to a host channel.  See\n" \
+"    http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \
+"    description of this switch.\n\n" \
+);
+
+#endif