Adds Planck Rev 7 & Updates rev6_drop to Matrix Lite Implementation (#21175)

* adds planck/rev7

* Remove config.h include

Co-authored-by: Drashna Jaelre <drashna@live.com>

* convert planck matrices to lite implementation

---------

Co-authored-by: Drashna Jaelre <drashna@live.com>

2 files changed, 32 insertions, 129 deletions

diff --git a/keyboards/planck/rev6_drop/matrix.c b/keyboards/planck/rev6_drop/matrix.c
index 6f7d6725a1..fae7de179c 100644
--- a/keyboards/planck/rev6_drop/matrix.c
+++ b/keyboards/planck/rev6_drop/matrix.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Jack Humbert <jack.humb@gmail.com>
+ * Copyright 2018-2023 Jack Humbert <jack.humb@gmail.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,155 +17,58 @@
 
 #include "quantum.h"
 
-#ifndef DEBOUNCE
-#    define DEBOUNCE 5
-#endif
-
-/*
- *     col: { B11, B10, B2, B1, A7, B0 }
- *     row: { A10, A9, A8, B15, C13, C14, C15, A2 }
- */
 /* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_COLS];
-static bool         debouncing      = false;
-static uint16_t     debouncing_time = 0;
-
-__attribute__((weak)) void matrix_init_user(void) {}
+static pin_t matrix_row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static pin_t matrix_col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
 
-__attribute__((weak)) void matrix_scan_user(void) {}
+static matrix_row_t matrix_inverted[MATRIX_COLS];
 
-__attribute__((weak)) void matrix_init_kb(void) {
-    matrix_init_user();
-}
+void matrix_init_custom(void) {
+    // actual matrix setup - cols
+    for (int i = 0; i < MATRIX_COLS; i++) {
+        setPinOutput(matrix_col_pins[i]);
+    }
 
-__attribute__((weak)) void matrix_scan_kb(void) {
-    matrix_scan_user();
+    // rows
+    for (int i = 0; i < MATRIX_ROWS; i++) {
+        setPinInputLow(matrix_row_pins[i]);
+    }
 }
 
-void matrix_init(void) {
-    dprintf("matrix init\n");
-    // debug_matrix = true;
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+    bool changed = false;
 
-    // actual matrix setup
-    palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL);
-    palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL);
-    palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
-    palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL);
-    palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL);
-    palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL);
-
-    palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOA, 9, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOA, 8, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOB, 15, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOC, 13, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOC, 14, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOC, 15, PAL_MODE_INPUT_PULLDOWN);
-    palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN);
-
-    memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
-    memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_row_t));
-
-    matrix_init_kb();
-}
-
-uint8_t matrix_scan(void) {
     // actual matrix
     for (int col = 0; col < MATRIX_COLS; col++) {
         matrix_row_t data = 0;
 
-        // strobe col { B11, B10, B2, B1, A7, B0 }
-        switch (col) {
-            case 0:
-                palSetPad(GPIOB, 11);
-                break;
-            case 1:
-                palSetPad(GPIOB, 10);
-                break;
-            case 2:
-                palSetPad(GPIOB, 2);
-                break;
-            case 3:
-                palSetPad(GPIOB, 1);
-                break;
-            case 4:
-                palSetPad(GPIOA, 7);
-                break;
-            case 5:
-                palSetPad(GPIOB, 0);
-                break;
-        }
+        // strobe col
+        writePinHigh(matrix_col_pins[col]);
 
         // need wait to settle pin state
         wait_us(20);
 
-        // read row data { A10, A9, A8, B15, C13, C14, C15, A2 }
-        data = ((palReadPad(GPIOA, 10) << 0) | (palReadPad(GPIOA, 9) << 1) | (palReadPad(GPIOA, 8) << 2) | (palReadPad(GPIOB, 15) << 3) | (palReadPad(GPIOC, 13) << 4) | (palReadPad(GPIOC, 14) << 5) | (palReadPad(GPIOC, 15) << 6) | (palReadPad(GPIOA, 2) << 7));
-
-        // unstrobe  col { B11, B10, B2, B1, A7, B0 }
-        switch (col) {
-            case 0:
-                palClearPad(GPIOB, 11);
-                break;
-            case 1:
-                palClearPad(GPIOB, 10);
-                break;
-            case 2:
-                palClearPad(GPIOB, 2);
-                break;
-            case 3:
-                palClearPad(GPIOB, 1);
-                break;
-            case 4:
-                palClearPad(GPIOA, 7);
-                break;
-            case 5:
-                palClearPad(GPIOB, 0);
-                break;
+        // read row data
+        for (int row = 0; row < MATRIX_ROWS; row++) {
+            data |= (readPin(matrix_row_pins[row]) << row);
         }
 
-        if (matrix_debouncing[col] != data) {
-            matrix_debouncing[col] = data;
-            debouncing             = true;
-            debouncing_time        = timer_read();
-        }
-    }
+        // unstrobe col
+        writePinLow(matrix_col_pins[col]);
 
-    if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
-        for (int row = 0; row < MATRIX_ROWS; row++) {
-            matrix[row] = 0;
-            for (int col = 0; col < MATRIX_COLS; col++) {
-                matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col);
-            }
+        if (matrix_inverted[col] != data) {
+            matrix_inverted[col] = data;
         }
-        debouncing = false;
     }
 
-    matrix_scan_kb();
-
-    return 1;
-}
-
-bool matrix_is_on(uint8_t row, uint8_t col) {
-    return (matrix[row] & (1 << col));
-}
-
-matrix_row_t matrix_get_row(uint8_t row) {
-    return matrix[row];
-}
-
-void matrix_print(void) {
-    dprintf("\nr/c 01234567\n");
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        dprintf("%X0: ", row);
-        matrix_row_t data = matrix_get_row(row);
+    for (int row = 0; row < MATRIX_ROWS; row++) {
+        matrix_row_t old = current_matrix[row];
+        current_matrix[row] = 0;
         for (int col = 0; col < MATRIX_COLS; col++) {
-            if (data & (1 << col))
-                dprintf("1");
-            else
-                dprintf("0");
+            current_matrix[row] |= ((matrix_inverted[col] & (1 << row) ? 1 : 0) << col);
         }
-        dprintf("\n");
+        changed |= old != current_matrix[row];
     }
+
+    return changed;
 }
diff --git a/keyboards/planck/rev6_drop/rules.mk b/keyboards/planck/rev6_drop/rules.mk
index e20d33831d..3eb3eac7eb 100644
--- a/keyboards/planck/rev6_drop/rules.mk
+++ b/keyboards/planck/rev6_drop/rules.mk
@@ -10,7 +10,7 @@ NKRO_ENABLE = yes           # Enable N-Key Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
 AUDIO_ENABLE = yes          # Audio output
-CUSTOM_MATRIX = yes
+CUSTOM_MATRIX = lite
 # Do not enable RGB_MATRIX_ENABLE together with RGBLIGHT_ENABLE
 RGB_MATRIX_ENABLE = no
 ENCODER_ENABLE = yes