Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h
new file mode 100644
index 000000000..ce2d72e34
--- /dev/null
+++ b/arch/mips/include/asm/termios.h
@@ -0,0 +1,105 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle
+ * Copyright (C) 2000, 2001 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_TERMIOS_H
+#define _ASM_TERMIOS_H
+
+#include <linux/uaccess.h>
+#include <uapi/asm/termios.h>
+
+/*
+ *	intr=^C		quit=^\		erase=del	kill=^U
+ *	vmin=\1		vtime=\0	eol2=\0		swtc=\0
+ *	start=^Q	stop=^S		susp=^Z		vdsusp=
+ *	reprint=^R	discard=^U	werase=^W	lnext=^V
+ *	eof=^D		eol=\0
+ */
+#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
+
+#include <linux/string.h>
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+static inline int user_termio_to_kernel_termios(struct ktermios *termios,
+	struct termio __user *termio)
+{
+	unsigned short iflag, oflag, cflag, lflag;
+	unsigned int err;
+
+	if (!access_ok(VERIFY_READ, termio, sizeof(struct termio)))
+		return -EFAULT;
+
+	err = __get_user(iflag, &termio->c_iflag);
+	termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag;
+	err |=__get_user(oflag, &termio->c_oflag);
+	termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag;
+	err |=__get_user(cflag, &termio->c_cflag);
+	termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag;
+	err |=__get_user(lflag, &termio->c_lflag);
+	termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag;
+	err |=__get_user(termios->c_line, &termio->c_line);
+	if (err)
+		return -EFAULT;
+
+	if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
+		return -EFAULT;
+
+	return 0;
+}
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ */
+static inline int kernel_termios_to_user_termio(struct termio __user *termio,
+	struct ktermios *termios)
+{
+	int err;
+
+	if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio)))
+		return -EFAULT;
+
+	err = __put_user(termios->c_iflag, &termio->c_iflag);
+	err |= __put_user(termios->c_oflag, &termio->c_oflag);
+	err |= __put_user(termios->c_cflag, &termio->c_cflag);
+	err |= __put_user(termios->c_lflag, &termio->c_lflag);
+	err |= __put_user(termios->c_line, &termio->c_line);
+	if (err)
+		return -EFAULT;
+
+	if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
+		return -EFAULT;
+
+	return 0;
+}
+
+static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
+	struct termios2 *u)
+{
+	return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
+}
+
+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
+	struct ktermios *k)
+{
+	return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
+}
+
+static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
+	struct termios __user *u)
+{
+	return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
+}
+
+static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
+	struct ktermios *k)
+{
+	return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
+}
+
+#endif /* _ASM_TERMIOS_H */