Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / asm-generic / termios.h

diff --git a/kernel/include/asm-generic/termios.h b/kernel/include/asm-generic/termios.h
new file mode 100644 (file)
index 0000000..4fa6fe0
--- /dev/null
+++ b/kernel/include/asm-generic/termios.h
@@ -0,0 +1,107 @@
+#ifndef _ASM_GENERIC_TERMIOS_H
+#define _ASM_GENERIC_TERMIOS_H
+
+
+#include <asm/uaccess.h>
+#include <uapi/asm-generic/termios.h>
+
+/*     intr=^C         quit=^\         erase=del       kill=^U
+       eof=^D          vtime=\0        vmin=\1         sxtc=\0
+       start=^Q        stop=^S         susp=^Z         eol=\0
+       reprint=^R      discard=^U      werase=^W       lnext=^V
+       eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+static inline int user_termio_to_kernel_termios(struct ktermios *termios,
+                                               const struct termio __user *termio)
+{
+       unsigned short tmp;
+
+       if (get_user(tmp, &termio->c_iflag) < 0)
+               goto fault;
+       termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
+
+       if (get_user(tmp, &termio->c_oflag) < 0)
+               goto fault;
+       termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
+
+       if (get_user(tmp, &termio->c_cflag) < 0)
+               goto fault;
+       termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
+
+       if (get_user(tmp, &termio->c_lflag) < 0)
+               goto fault;
+       termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
+
+       if (get_user(termios->c_line, &termio->c_line) < 0)
+               goto fault;
+
+       if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
+               goto fault;
+
+       return 0;
+
+ fault:
+       return -EFAULT;
+}
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ */
+static inline int kernel_termios_to_user_termio(struct termio __user *termio,
+                                               struct ktermios *termios)
+{
+       if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
+           put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
+           put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
+           put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
+           put_user(termios->c_line,  &termio->c_line) < 0 ||
+           copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
+               return -EFAULT;
+
+       return 0;
+}
+
+#ifdef TCGETS2
+static inline int user_termios_to_kernel_termios(struct ktermios *k,
+                                                struct termios2 __user *u)
+{
+       return copy_from_user(k, u, sizeof(struct termios2));
+}
+
+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
+                                                struct ktermios *k)
+{
+       return copy_to_user(u, k, sizeof(struct termios2));
+}
+
+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));
+}
+
+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));
+}
+#else /* TCGETS2 */
+static inline int user_termios_to_kernel_termios(struct ktermios *k,
+                                                struct termios __user *u)
+{
+       return copy_from_user(k, u, sizeof(struct termios));
+}
+
+static inline int kernel_termios_to_user_termios(struct termios __user *u,
+                                                struct ktermios *k)
+{
+       return copy_to_user(u, k, sizeof(struct termios));
+}
+#endif /* TCGETS2 */
+
+#endif /* _ASM_GENERIC_TERMIOS_H */