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-rw-r--r--arch/alpha/include/asm/termios.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
new file mode 100644
index 000000000..7fde0f88d
--- /dev/null
+++ b/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 */