Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / alpha / include / asm / termios.h

diff --git a/kernel/arch/alpha/include/asm/termios.h b/kernel/arch/alpha/include/asm/termios.h
new file mode 100644 (file)
index 0000000..7fde0f8
--- /dev/null
+++ b/kernel/arch/alpha/include/asm/termios.h
@@ -0,0 +1,80 @@
+#ifndef _ALPHA_TERMIOS_H
+#define _ALPHA_TERMIOS_H
+
+#include <uapi/asm/termios.h>
+
+/*     eof=^D          eol=\0          eol2=\0         erase=del
+       werase=^W       kill=^U         reprint=^R      sxtc=\0
+       intr=^C         quit=^\         susp=^Z         <OSF/1 VDSUSP>
+       start=^Q        stop=^S         lnext=^V        discard=^U
+       vmin=\1         vtime=\0
+*/
+#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000"
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+
+#define user_termio_to_kernel_termios(a_termios, u_termio)                     \
+({                                                                             \
+       struct ktermios *k_termios = (a_termios);                               \
+       struct termio k_termio;                                                 \
+       int canon, ret;                                                         \
+                                                                               \
+       ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio));            \
+       if (!ret) {                                                             \
+               /* Overwrite only the low bits.  */                             \
+               *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag;      \
+               *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag;      \
+               *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag;      \
+               *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag;      \
+               canon = k_termio.c_lflag & ICANON;                              \
+                                                                               \
+               k_termios->c_cc[VINTR]  = k_termio.c_cc[_VINTR];                \
+               k_termios->c_cc[VQUIT]  = k_termio.c_cc[_VQUIT];                \
+               k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE];               \
+               k_termios->c_cc[VKILL]  = k_termio.c_cc[_VKILL];                \
+               k_termios->c_cc[VEOL2]  = k_termio.c_cc[_VEOL2];                \
+               k_termios->c_cc[VSWTC]  = k_termio.c_cc[_VSWTC];                \
+               k_termios->c_cc[canon ? VEOF : VMIN]  = k_termio.c_cc[_VEOF];   \
+               k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL];   \
+       }                                                                       \
+       ret;                                                                    \
+})
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ *
+ * Note the "fun" _VMIN overloading.
+ */
+#define kernel_termios_to_user_termio(u_termio, a_termios)             \
+({                                                                     \
+       struct ktermios *k_termios = (a_termios);                       \
+       struct termio k_termio;                                         \
+       int canon;                                                      \
+                                                                       \
+       k_termio.c_iflag = k_termios->c_iflag;                          \
+       k_termio.c_oflag = k_termios->c_oflag;                          \
+       k_termio.c_cflag = k_termios->c_cflag;                          \
+       canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON;       \
+                                                                       \
+       k_termio.c_line = k_termios->c_line;                            \
+       k_termio.c_cc[_VINTR]  = k_termios->c_cc[VINTR];                \
+       k_termio.c_cc[_VQUIT]  = k_termios->c_cc[VQUIT];                \
+       k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE];               \
+       k_termio.c_cc[_VKILL]  = k_termios->c_cc[VKILL];                \
+       k_termio.c_cc[_VEOF]   = k_termios->c_cc[canon ? VEOF : VMIN];  \
+       k_termio.c_cc[_VEOL]   = k_termios->c_cc[canon ? VEOL : VTIME]; \
+       k_termio.c_cc[_VEOL2]  = k_termios->c_cc[VEOL2];                \
+       k_termio.c_cc[_VSWTC]  = k_termios->c_cc[VSWTC];                \
+                                                                       \
+       copy_to_user(u_termio, &k_termio, sizeof(k_termio));            \
+})
+
+#define user_termios_to_kernel_termios(k, u) \
+       copy_from_user(k, u, sizeof(struct termios))
+
+#define kernel_termios_to_user_termios(u, k) \
+       copy_to_user(u, k, sizeof(struct termios))
+
+#endif /* _ALPHA_TERMIOS_H */