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Merge pull request #30 from Wraul/phantom_debounce_fix 

Fix debouncing on Phantom.
This commit is contained in:
tmk 2013-04-30 15:29:35 -07:00
parent f4760c822a 3d503c8932
commit a505dafe59
1 changed files with 11 additions and 15 deletions
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26
keyboard/phantom/matrix.c
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@ -24,10 +24,8 @@
static uint8_t debouncing = DEBOUNCE; static uint8_t debouncing = DEBOUNCE;
// bit array of key state(1:on, 0:off) // bit array of key state(1:on, 0:off)
static matrix_row_t *matrix; static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t *matrix_debounced; static matrix_row_t matrix_debouncing[MATRIX_ROWS];
static matrix_row_t matrix0[MATRIX_ROWS];
static matrix_row_t matrix1[MATRIX_ROWS];
#define _DDRA (uint8_t *const)&DDRA #define _DDRA (uint8_t *const)&DDRA
@ -165,11 +163,9 @@ void matrix_init(void)
// initialize matrix state: all keys off // initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) { for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix0[i] = 0; matrix[i] = 0;
matrix1[i] = 0; matrix_debouncing[i] = 0;
} }
matrix = matrix0;
matrix_debounced = matrix1;
} }
uint8_t matrix_scan(void) uint8_t matrix_scan(void)
@ -178,10 +174,10 @@ uint8_t matrix_scan(void)
pull_column(col); // output hi on theline pull_column(col); // output hi on theline
_delay_us(3); // without this wait it won't read stable value. _delay_us(3); // without this wait it won't read stable value.
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5 for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
bool prev_bit = matrix[row] & ((matrix_row_t)1<<col); bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = !(*row_pin[row] & row_bit[row]); bool curr_bit = !(*row_pin[row] & row_bit[row]);
if (prev_bit != curr_bit) { if (prev_bit != curr_bit) {
matrix[row] ^= ((matrix_row_t)1<<col); matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) { if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); print("\n"); debug("bounce!: "); debug_hex(debouncing); print("\n");
} }
@ -195,9 +191,9 @@ uint8_t matrix_scan(void)
if (--debouncing) { if (--debouncing) {
_delay_ms(1); _delay_ms(1);
} else { } else {
matrix_row_t *tmp = matrix_debounced; for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix_debounced = matrix; matrix[i] = matrix_debouncing[i];
matrix = tmp; }
} }
} }
@ -213,13 +209,13 @@ bool matrix_is_modified(void)
inline inline
bool matrix_is_on(uint8_t row, uint8_t col) bool matrix_is_on(uint8_t row, uint8_t col)
{ {
return (matrix_debounced[row] & ((matrix_row_t)1<<col)); return (matrix[row] & ((matrix_row_t)1<<col));
} }
inline inline
matrix_row_t matrix_get_row(uint8_t row) matrix_row_t matrix_get_row(uint8_t row)
{ {
return matrix_debounced[row]; return matrix[row];
} }
void matrix_print(void) void matrix_print(void)