[Split] Add config option for DIRECT_PINS_RIGHT (qmk#6479)

Adds support for different direct pin mappings on the halves of a split keyboard.
dtmetz · Aug 4, 2019 · f644db0 · f644db0
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diff --git a/docs/config_options.md b/docs/config_options.md
@@ -248,6 +248,9 @@ There are a few different ways to set handedness for split keyboards (listed in
 * `#define MATRIX_COL_PINS_RIGHT { <col pins> }`
   * If you want to specify a different pinout for the right half than the left half, you can define `MATRIX_ROW_PINS_RIGHT`/`MATRIX_COL_PINS_RIGHT`. Currently, the size of `MATRIX_ROW_PINS` must be the same as `MATRIX_ROW_PINS_RIGHT` and likewise for the definition of columns.
 
+* `#define DIRECT_PINS_RIGHT { { F1, F0, B0, C7 }, { F4, F5, F6, F7 } }`
+  * If you want to specify a different direct pinout for the right half than the left half, you can define `DIRECT_PINS_RIGHT`. Currently, the size of `DIRECT_PINS` must be the same as `DIRECT_PINS_RIGHT`.
+
 * `#define RGBLED_SPLIT { 6, 6 }`
   * See [RGB Light Configuration](#rgb-light-configuration)
 

diff --git a/docs/feature_split_keyboard.md b/docs/feature_split_keyboard.md
@@ -160,6 +160,11 @@ There are some settings that you may need to configure, based on how the hardwar
 
 This allows you to specify a different set of pins for the matrix on the right side.  This is useful if you have a board with differently-shaped halves that requires a different configuration (such as Keebio's Quefrency).
 
+```c
+#define DIRECT_PINS_RIGHT { { F1, F0, B0, C7 }, { F4, F5, F6, F7 } }
+```
+
+This allows you to specify a different set of direct pins for the right side.
 
 ```c
 #define RGBLIGHT_SPLIT

diff --git a/quantum/split_common/matrix.c b/quantum/split_common/matrix.c
@@ -252,6 +252,14 @@ void matrix_init(void) {
 
   // Set pinout for right half if pinout for that half is defined
   if (!isLeftHand) {
+#ifdef DIRECT_PINS_RIGHT
+    const pin_t direct_pins_right[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS_RIGHT;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+      for (uint8_t j = 0; j < MATRIX_COLS; j++) {
+        direct_pins[i][j] = direct_pins_right[i][j];
+      }
+    }
+#endif
 #ifdef MATRIX_ROW_PINS_RIGHT
     const pin_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
     for (uint8_t i = 0; i < MATRIX_ROWS; i++) {