1 files changed, 91 insertions, 14 deletions

diff --git a/include/asm-generic/termios.h b/include/asm-generic/termios.h
index 7d39ecc92d94..d0922adc56d4 100644
--- a/include/asm-generic/termios.h
+++ b/include/asm-generic/termios.h
@@ -1,18 +1,68 @@
-/* termios.h: generic termios/termio user copying/translation
- */
-
 #ifndef _ASM_GENERIC_TERMIOS_H
 #define _ASM_GENERIC_TERMIOS_H
+/*
+ * Most architectures have straight copies of the x86 code, with
+ * varying levels of bug fixes on top. Usually it's a good idea
+ * to use this generic version instead, but be careful to avoid
+ * ABI changes.
+ * New architectures should not provide their own version.
+ */
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+        unsigned short ws_row;
+        unsigned short ws_col;
+        unsigned short ws_xpixel;
+        unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+        unsigned short c_iflag;         /* input mode flags */
+        unsigned short c_oflag;         /* output mode flags */
+        unsigned short c_cflag;         /* control mode flags */
+        unsigned short c_lflag;         /* local mode flags */
+        unsigned char c_line;           /* line discipline */
+        unsigned char c_cc[NCC];        /* control characters */
+};
+
+/* modem lines */
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+#ifdef __KERNEL__
 
 #include <asm/uaccess.h>
 
-#ifndef __ARCH_TERMIO_GETPUT
+/*      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,
-                                                struct termio __user *termio)
+                                                const struct termio __user *termio)
 {
         unsigned short tmp;
 
@@ -61,17 +111,44 @@ static inline int kernel_termios_to_user_termio(struct termio __user *termio,
         return 0;
 }
 
-#ifndef user_termios_to_kernel_termios
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#endif
+#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));
+}
 
-#ifndef kernel_termios_to_user_termios
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
-#endif
+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
+                                                 struct ktermios *k)
+{
+        return copy_to_user(u, k, sizeof(struct termios2));
+}
 
-#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
+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  /* __ARCH_TERMIO_GETPUT */
+#endif  /* __KERNEL__ */
 
 #endif /* _ASM_GENERIC_TERMIOS_H */