1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/char/selection.h b/drivers/char/selection.h
new file mode 100644
index 000000000..9d51f7e87
--- /dev/null
+++ b/drivers/char/selection.h
@@ -0,0 +1,91 @@
+/*
+ * selection.h
+ *
+ * Interface between console.c, tty_io.c, vt.c, vc_screen.c and selection.c
+ */
+extern int sel_cons;
+
+extern void clear_selection(void);
+extern int set_selection(const unsigned long arg, struct tty_struct *tty);
+extern int paste_selection(struct tty_struct *tty);
+extern int sel_loadlut(const unsigned long arg);
+extern int mouse_reporting(void);
+extern void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry);
+
+extern unsigned long video_num_columns;
+extern unsigned long video_num_lines;
+extern unsigned long video_size_row;
+
+extern void do_unblank_screen(void);
+extern unsigned short *screen_pos(int currcons, int w_offset, int viewed);
+extern unsigned short screen_word(int currcons, int offset, int viewed);
+extern void complement_pos(int currcons, int offset);
+extern void invert_screen(int currcons, int offset, int count, int shift);
+
+#define reverse_video_char(a)	(((a) & 0x88) | ((((a) >> 4) | ((a) << 4)) & 0x77))
+#define reverse_video_short(a)	(((a) & 0x88ff) | \
+	(((a) & 0x7000) >> 4) | (((a) & 0x0700) << 4))
+/* this latter line used to have masks 0xf000 and 0x0f00, but selection
+   requires a self-inverse operation; moreover, the old version looks wrong */
+
+extern void getconsxy(int currcons, char *p);
+extern void putconsxy(int currcons, char *p);
+
+/* how to access screen memory */
+#ifdef __alpha__
+
+#include <asm/io.h> 
+
+static inline void scr_writeb(unsigned char val, unsigned char * addr)
+{
+	if ((long) addr < 0)
+		*addr = val;
+	else
+		writeb(val, (unsigned long) addr);
+}
+
+static inline unsigned char scr_readb(unsigned char * addr)
+{
+	if ((long) addr < 0)
+		return *addr;
+	return readb((unsigned long) addr);
+}
+
+static inline void scr_writew(unsigned short val, unsigned short * addr)
+{
+	if ((long) addr < 0)
+		*addr = val;
+	else
+		writew(val, (unsigned long) addr);
+}
+
+static inline unsigned short scr_readw(unsigned short * addr)
+{
+	if ((long) addr < 0)
+		return *addr;
+	return readw((unsigned long) addr);
+}
+
+#else
+
+static inline void scr_writeb(unsigned char val, unsigned char * addr)
+{
+	*addr = val;
+}
+
+static inline unsigned char scr_readb(unsigned char * addr)
+{
+	return *addr;
+}
+
+static inline void scr_writew(unsigned short val, unsigned short * addr)
+{
+	*addr = val;
+}
+
+static inline unsigned short scr_readw(unsigned short * addr)
+{
+	return *addr;
+}
+
+#endif