summaryrefslogtreecommitdiff
path: root/keyboard/phantom/matrix.c
diff options
context:
space:
mode:
authorMathias Andersson <wraul@dbox.se>2013-04-28 18:54:38 +0200
committerMathias Andersson <wraul@dbox.se>2013-04-28 18:54:38 +0200
commit3d503c8932b981ceb772c2e4e605607f421b49bf (patch)
tree72bfe1436093a15ace410909700c74354a6bef54 /keyboard/phantom/matrix.c
parentf4760c822a34c338250dc47ff6d195935986bdae (diff)
Fix debouncing on Phantom.
Diffstat (limited to 'keyboard/phantom/matrix.c')
-rw-r--r--keyboard/phantom/matrix.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/keyboard/phantom/matrix.c b/keyboard/phantom/matrix.c
index 7ea494a7e2..7b2461dcc7 100644
--- a/keyboard/phantom/matrix.c
+++ b/keyboard/phantom/matrix.c
@@ -24,10 +24,8 @@
static uint8_t debouncing = DEBOUNCE;
// bit array of key state(1:on, 0:off)
-static matrix_row_t *matrix;
-static matrix_row_t *matrix_debounced;
-static matrix_row_t matrix0[MATRIX_ROWS];
-static matrix_row_t matrix1[MATRIX_ROWS];
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#define _DDRA (uint8_t *const)&DDRA
@@ -165,11 +163,9 @@ void matrix_init(void)
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
- matrix0[i] = 0;
- matrix1[i] = 0;
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
}
- matrix = matrix0;
- matrix_debounced = matrix1;
}
uint8_t matrix_scan(void)
@@ -178,10 +174,10 @@ uint8_t matrix_scan(void)
pull_column(col); // output hi on theline
_delay_us(3); // without this wait it won't read stable value.
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]);
if (prev_bit != curr_bit) {
- matrix[row] ^= ((matrix_row_t)1<<col);
+ matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); print("\n");
}
@@ -195,9 +191,9 @@ uint8_t matrix_scan(void)
if (--debouncing) {
_delay_ms(1);
} else {
- matrix_row_t *tmp = matrix_debounced;
- matrix_debounced = matrix;
- matrix = tmp;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ matrix[i] = matrix_debouncing[i];
+ }
}
}
@@ -213,13 +209,13 @@ bool matrix_is_modified(void)
inline
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
matrix_row_t matrix_get_row(uint8_t row)
{
- return matrix_debounced[row];
+ return matrix[row];
}
void matrix_print(void)