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-rw-r--r--evspy.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/evspy.h b/evspy.h
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--- /dev/null
+++ b/evspy.h
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+#include <asm/page.h>
+#include <linux/input.h>
+#include "maps.h"
+
+#define EVS_NAME "evspy" // driver name
+#define EVS_MAP map_es // change this to your keyboard layout
+#define EVS_TROLL 1 // clear this if you're a serious guy
+#define EVS_BUFSIZE PAGE_SIZE // size of the circular buffer (4K)
+#define EVS_PROCNAME "driver/" EVS // virtual file within /proc
+
+#define MIN(x, y) (x) < (y) ? (x) : (y)
+
+/*
+ * If pointer is at the end of buffer, put it at the beginning.
+ * If not, simply add 1 to it.
+ */
+#define evs_incp(p) \
+({ \
+ if (p == &buffer[EVS_BUFSIZE-1]) \
+ p = buffer; \
+ else \
+ p++; \
+ p; \
+})
+
+/*
+ * Same as evs_incp but backwards
+ */
+#define evs_decp(p) \
+({ \
+ if (p == buffer) \
+ p = &buffer[EVS_BUFSIZE-1]; \
+ else \
+ p--; \
+ p; \
+})
+
+/*
+ * Insert character c where wrp is pointing and move it to the next char.
+ * If rdp == wrp, increase rdp too.
+ */
+#define evs_insert(c) \
+({ \
+ *wrp = c; \
+ if (evs_incp(wrp) == rdp) \
+ evs_incp(rdp); \
+})
+
+/*
+ * Remove a character from the buffer
+ */
+#define evs_delete() \
+({ \
+ if (wrp != rdp && evs_decp(wrp) == rdp) \
+ evs_decp(rdp); \
+})
+
+/*
+ * Is the c event code associated to any of the FX buttons?
+ */
+#define evs_isfX(c) \
+({ \
+ (c >= KEY_F1 && c <= KEY_F10) || \
+ (c == KEY_F11 || c == KEY_F12) || \
+ (c >= KEY_F13 && c <= KEY_F24); \
+})
+
+// Event values
+#define EVS_VAL_FREE 0
+#define EVS_VAL_PRESS 1
+#define EVS_VAL_HOLD 2