Convert Wasdat Code custom matrix to SN74x138 driver (qmk#16257)

Bastardkb · Jul 2, 2022 · d9eba6f · d9eba6f
1 parent 79530d4
commit d9eba6f
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Showing 4 changed files with 78 additions and 311 deletions.
diff --git a/keyboards/evyd13/wasdat/matrix.c b/keyboards/evyd13/wasdat/matrix.c
@@ -24,27 +24,28 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
 static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
 
-/* col 0: C7
- * col 1: B6
- * col 2: C6
- * col 3: B4
- * col 4: B5
- * col 5: D7
+/* Columns 6-12 use a 74HC138 3-to-8 demultiplexer.
  *
- * These columns use a 74HC138 3 to 8 bit demultiplexer.
- *                A2   A1   A0
- * col / pin:    PD0  PD1  PD2
- * 6:              1    1    1
- * 7:              1    1    0
- * 8:              1    0    1
- * 9:              1    0    0
- * 10:             0    1    1
- * 11:             0    1    0
- * 12:             0    0    1
+ * 0:  C7
+ * 1:  B6
+ * 2:  C6
+ * 3:  B4
+ * 4:  B5
+ * 5:  D7
  *
- * col 13: D3
- * col 14: B7
- * col 15: B3
+ *     A2   A1   A0
+ *     D0   D1   D2
+ * 6:   1    1    1
+ * 7:   1    1    0
+ * 8:   1    0    1
+ * 9:   1    0    0
+ * 10:  0    1    1
+ * 11:  0    1    0
+ * 12:  0    0    1
+ *
+ * 13: D3
+ * 14: B7
+ * 15: B3
  */
 static void select_col(uint8_t col) {
     if (col_pins[col] != NO_PIN) {
@@ -117,10 +118,10 @@ static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
 }
 
 void matrix_init_custom(void) {
-    // initialize key pins
-    init_pins();
     // initialize demultiplexer
     sn74x138_init();
+    // initialize key pins
+    init_pins();
 }
 
 bool matrix_scan_custom(matrix_row_t current_matrix[]) {

diff --git a/keyboards/evyd13/wasdat_code/config.h b/keyboards/evyd13/wasdat_code/config.h
@@ -41,22 +41,17 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
 */
 #define MATRIX_ROW_PINS { E6, C7, C6, B6, B5, B4, D7, D6 }
-#define MATRIX_COL_PINS { }
+#define MATRIX_COL_PINS { F7, F5, F6, F1, F4, F0, NO_PIN, D5, D3, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN } // Columns 6 and 9-15 controlled by demux
 #define UNUSED_PINS
 
-/* COL2ROW, ROW2COL*/
-#define DIODE_DIRECTION ROW2COL
+#define SN74X138_ADDRESS_PINS { D2, D1, D0 }
+#define SN74X138_E3_PIN D4
 
 // For QMK DFU
 #define QMK_ESC_OUTPUT E6
 #define QMK_ESC_INPUT F0
 #define QMK_LED B1
 
-/*
- * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
- */
-//#define SOFT_SERIAL_PIN D0 // or D1, D2, D3, E6
-
 #define LED_NUM_LOCK_PIN B3
 #define LED_CAPS_LOCK_PIN B1
 #define LED_SCROLL_LOCK_PIN B2