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authortmk <nobody@nowhere>2010-09-13 00:00:58 +0900
committertmk <nobody@nowhere>2010-09-13 00:18:56 +0900
commit82309deefc21f66d92df08b8eecae8466939e04d (patch)
tree99e12a16b08f4f5b4b1b8785a076397831d39f88 /mykey.c
parent3b31337cd8a5fe8b02924f2056ad2648a028c563 (diff)
add anti-ghost logic
Diffstat (limited to 'mykey.c')
-rw-r--r--mykey.c81
1 files changed, 43 insertions, 38 deletions
diff --git a/mykey.c b/mykey.c
index 93f753f01f..b22c68fb84 100644
--- a/mykey.c
+++ b/mykey.c
@@ -24,10 +24,12 @@
* THE SOFTWARE.
*/
+#include <stdbool.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <util/delay.h>
+
#include "usb_keyboard_debug.h"
#include "print.h"
#include "matrix.h"
@@ -45,7 +47,8 @@ uint16_t idle_count=0;
int main(void)
{
- uint8_t modified = 0;
+ bool modified = false;
+ bool has_ghost = false;
uint8_t key_index = 0;
// set for 16 MHz clock
@@ -77,61 +80,63 @@ int main(void)
while (1) {
uint8_t row, col, code;
- modified = 0;
-
matrix_scan();
- keyboard_modifier_keys = 0;
- for (int i = 0; i < 6; i++)
- keyboard_keys[i] = KB_NO;
- key_index = 0;
+ modified = matrix_is_modified();
+ has_ghost = matrix_has_ghost();
- for (row = 0; row < MATRIX_ROWS; row++) {
- if (matrix[row] != prev_matrix[row]) {
- modified = 1;
- }
+ // doesnt send keys during ghost occurs
+ if (modified && !has_ghost) {
+ key_index = 0;
+ keyboard_modifier_keys = 0;
+ for (int i = 0; i < 6; i++) keyboard_keys[i] = KB_NO;
- for (col = 0; col < MATRIX_COLS; col++) {
- if (matrix[row] & 1<<col) continue;
- code = get_keycode(row, col);
-
- // Modifier keycode: 0xE0-0xE7
- if (KB_LCTRL <= code && code <= KB_RGUI) {
- keyboard_modifier_keys |= 1<<(code&0x07);
- } else {
- if (key_index < 6) {
- keyboard_keys[key_index] = code;
+ for (row = 0; row < MATRIX_ROWS; row++) {
+ for (col = 0; col < MATRIX_COLS; col++) {
+ if (matrix[row] & 1<<col) continue;
+
+ code = get_keycode(row, col);
+ if (KB_LCTRL <= code && code <= KB_RGUI) {
+ // modifier keycode: 0xE0-0xE7
+ keyboard_modifier_keys |= 1<<(code & 0x07);
+ } else {
+ if (key_index < 6)
+ keyboard_keys[key_index] = code;
+ key_index++;
}
- key_index++;
}
+ }
+ if (key_index > 6) {
+ //Rollover
}
- }
- if (key_index > 6) {
- //Rollover
- }
-
+ usb_keyboard_send();
- // if any keypresses were detected, reset the idle counter
+ // variables shared with interrupt routines must be
+ // accessed carefully so the interrupt routine doesn't
+ // try to use the variable in the middle of our access
+ cli();
+ idle_count = 0;
+ sei();
+ }
+
+ // print matrix state for debug
if (modified) {
- print(" 01234567\n");
+ print("r/c 01234567\n");
for (row = 0; row < MATRIX_ROWS; row++) {
- phex(row); print(": "); pbin_reverse(matrix[row]); print("\n");
+ phex(row); print(": ");
+ pbin_reverse(matrix[row]);
+ if (matrix_has_ghost_in_row(row)) {
+ print(" <ghost");
+ }
+ print("\n");
}
print("keys: ");
for (int i = 0; i < 6; i++) { phex(keyboard_keys[i]); print(" "); }
print("\n");
print("mod: "); phex(keyboard_modifier_keys); print("\n");
- usb_keyboard_send();
-
- // variables shared with interrupt routines must be
- // accessed carefully so the interrupt routine doesn't
- // try to use the variable in the middle of our access
- cli();
- idle_count = 0;
- sei();
}
// now the current pins will be the previous, and