Merge remote-tracking branch 'upstream/master'

* upstream/master: (1239 commits)
  Update ez.c
  removes planck/rev3 temporarily
  Move hand_swap_config to ez.c, removes error for infinity
  Update Makefile
  ergodox: Update algernon's keymap to v1.9
  Added VS Code dir to .gitignore
  Support the Pegasus Hoof controller.
  [Jack & Erez] Simplifies and documents TO
  add readme
  use wait_ms instead of _delay_ms
  add messenger
  init keymap
  Add example keymap
  Adding whiskey_tango_foxtrot_capslock ergodox keymap
  Unicode map framework. Allow unicode up to 0xFFFFF using separate mapping table
  CIE 1931 dim curve
  Apply the dim curve to the RGB output
  Update the Cluecard readme files
  Tune snake and knight intervals for Cluecard
  Tunable RGB light intervals
  ...

1 files changed, 199 insertions, 0 deletions

diff --git a/keyboards/alps64/matrix.c b/keyboards/alps64/matrix.c
new file mode 100644
index 0000000000..b3508850de
--- /dev/null
+++ b/keyboards/alps64/matrix.c
@@ -0,0 +1,199 @@
+/*
+Copyright 2012 Jun Wako <wakojun@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
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+
+
+#ifndef DEBOUNCE
+#   define DEBOUNCE	5
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    // initialize row and col
+    unselect_rows();
+    init_cols();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    //debug
+    debug_matrix = true;
+    LED_ON();
+    _delay_ms(500);
+    LED_OFF();
+}
+
+uint8_t matrix_scan(void)
+{
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        select_row(i);
+        _delay_us(30);  // without this wait read unstable value.
+        matrix_row_t cols = read_cols();
+        if (matrix_debouncing[i] != cols) {
+            matrix_debouncing[i] = cols;
+            if (debouncing) {
+                debug("bounce!: "); debug_hex(debouncing); debug("\n");
+            }
+            debouncing = DEBOUNCE;
+        }
+        unselect_rows();
+    }
+
+    if (debouncing) {
+        if (--debouncing) {
+            _delay_ms(1);
+        } else {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+        }
+    }
+
+    matrix_scan_quantum();
+
+    return 1;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse16(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+/* Column pin configuration
+ * col: 0   1   2   3   4   5   6   7
+ * pin: B0  B1  B2  B3  B4  B5  B6  B7
+ */
+static void  init_cols(void)
+{
+    // Input with pull-up(DDR:0, PORT:1)
+    DDRB  &= ~0b11111111;
+    PORTB |=  0b11111111;
+}
+
+/* Returns status of switches(1:on, 0:off) */
+static matrix_row_t read_cols(void)
+{
+    // Invert because PIN indicates 'switch on' with low(0) and 'off' with high(1)
+    return ~PINB;
+}
+
+/* Row pin configuration
+ * row: 0   1   2   3   4   5   6   7
+ * pin: D0  D1  D2  D3  D4  D5  D6  C2
+ */
+static void unselect_rows(void)
+{
+    // Hi-Z(DDR:0, PORT:0) to unselect
+    DDRD  &= ~0b01111111;
+    PORTD &= ~0b01111111;
+    DDRC  &= ~0b00000100;
+    PORTC &= ~0b00000100;
+}
+
+
+static void select_row(uint8_t row)
+{
+    // Output low(DDR:1, PORT:0) to select
+    switch (row) {
+        case 0:
+            DDRD  |= (1<<0);
+            PORTD &= ~(1<<0);
+            break;
+        case 1:
+            DDRD  |= (1<<1);
+            PORTD &= ~(1<<1);
+            break;
+        case 2:
+            DDRD  |= (1<<2);
+            PORTD &= ~(1<<2);
+            break;
+        case 3:
+            DDRD  |= (1<<3);
+            PORTD &= ~(1<<3);
+            break;
+        case 4:
+            DDRD  |= (1<<4);
+            PORTD &= ~(1<<4);
+            break;
+        case 5:
+            DDRD  |= (1<<5);
+            PORTD &= ~(1<<5);
+            break;
+        case 6:
+            DDRD  |= (1<<6);
+            PORTD &= ~(1<<6);
+            break;
+        case 7:
+            DDRC  |= (1<<2);
+            PORTC &= ~(1<<2);
+            break;
+    }
+}