From 3916b06168f39233f77a252fbf5f9cfdae3df4fe Mon Sep 17 00:00:00 2001
From: MechMerlin <30334081+mechmerlin@users.noreply.github.com>
Date: Tue, 28 Aug 2018 16:52:00 -0700
Subject: Putting my ducks in a row: Octagon V1/V2  (#3765)

* Move octagon directory into duck diretory and fix as many compile issues as I can

* fix formatting

* fix layout75 matrix

* edit readme for build instructions
---
 keyboards/duck/octagon/v1/matrix.c | 227 +++++++++++++++++++++++++++++++++++++
 1 file changed, 227 insertions(+)
 create mode 100644 keyboards/duck/octagon/v1/matrix.c

(limited to 'keyboards/duck/octagon/v1/matrix.c')

diff --git a/keyboards/duck/octagon/v1/matrix.c b/keyboards/duck/octagon/v1/matrix.c
new file mode 100644
index 0000000000..8555349943
--- /dev/null
+++ b/keyboards/duck/octagon/v1/matrix.c
@@ -0,0 +1,227 @@
+/*
+Copyright 2017 MechMerlin <mechmerlin@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/>.
+*/
+
+#include <util/delay.h>
+#include <avr/io.h>
+#include <stdio.h>
+#include "matrix.h"
+#include "util.h"
+#include "print.h"
+#include "debug.h"
+
+static uint8_t debouncing = DEBOUNCING_DELAY;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static uint8_t read_rows(uint8_t col);
+static void init_rows(void);
+static void unselect_cols(void);
+static void select_col(uint8_t col);
+
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+void backlight_init_ports(void)
+{
+    DDRB |= 0b00011111;  // PB0 (caps), PB1 (alpha), PB2 (extra), PB3 (modnum), PB4 (caps)
+    DDRD |= 0b11010000;  // PD4, (rgb blue), PD6 (rgb red), PD7 (rgb green)
+    DDRE |= 0b01000000;  // PE6 (frow)
+}
+
+void matrix_init(void) {
+  backlight_init_ports();
+  unselect_cols();
+  init_rows();
+
+  for (uint8_t i=0; i < MATRIX_ROWS; i++)  {
+    matrix[i] = 0;
+    matrix_debouncing[i] = 0;
+  }
+
+  matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void) {
+  for (uint8_t col = 0; col < MATRIX_COLS; col++) {
+    select_col(col);
+    _delay_us(3);
+
+    uint8_t rows = read_rows(col);
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+      bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
+      bool curr_bit = rows & (1<<row);
+      if (prev_bit != curr_bit) {
+        matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
+        debouncing = DEBOUNCING_DELAY;
+      }
+    }
+    unselect_cols();
+  }
+
+  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 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++) {
+    xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row)));
+  }
+}
+
+/* Row pin configuration
+ * row: 0    1    2    3    4    5
+ * pin: PB7  PD0  PD1  PD2  PD3  PD5
+ *
+ * Esc uses its own pin PE2
+ */
+static void init_rows(void) {
+    DDRD  &= ~0b00101111; // PD0, PD1, PD2, PD3, PD5 input
+    PORTD &= ~0b00101111; // PD0, PD1, PD2, PD3, PD5 low
+
+    DDRB  &= ~0b10000000; // PB7 input
+    PORTB &= ~0b10000000; // PB7 low
+
+    DDRE  &= ~0b00000100; // PE2 input
+    PORTE |=  0b00000100; // PE2 high
+}
+
+static uint8_t read_rows(uint8_t col) {
+  if (col == 14) {
+    return PINE&(1<<2) ? 0 : (1<<0);        // PE2 (Row 0)
+  } else {
+      return (PIND&(1<<0) ? (1<<0) : 0) |   // PD0 (Row 0)
+             (PIND&(1<<1) ? (1<<1) : 0) |   // PD1 (Row 1)
+             (PIND&(1<<2) ? (1<<2) : 0) |   // PD2 (Row 2)
+             (PIND&(1<<3) ? (1<<3) : 0) |   // PD3 (Row 3)
+             (PIND&(1<<5) ? (1<<4) : 0) |   // PD5 (Row 4)
+             (PINB&(1<<7) ? (1<<5) : 0);    // PB7 (Row 5)
+    }
+}
+
+uint8_t read_fwkey(void)
+{
+  return PINE&(1<<2) ? 0 : (1<<0);
+}
+
+static void unselect_cols(void) {
+    DDRB  |=  0b01000000; // PB6 (U2) output
+    PORTB &= ~0b01000000; // PB6 (U2) low
+
+    DDRC  |=  0b11000000; // PC6 (U1), PC7 (A2) output
+    PORTC &= ~0b11000000; // PC6 (U1), PC7 (A2) low
+
+    DDRF  |=  0b00000011; // PF0 (A0), PF1 (A1) output
+    PORTF &= ~0b00000011; // PF0 (A0), PF1 (A1) low
+}
+
+static void select_col(uint8_t col) {
+ 
+   switch (col) {
+        case 0:
+            PORTC |= 0b01000000; // PC6 high
+            break;
+        case 1:
+            PORTC |= 0b01000000; // PC6 high
+            PORTF |= 0b00000001; // PF0 high
+            break;
+        case 2:
+            PORTC |= 0b01000000; // PC6 high
+            PORTF |= 0b00000010; // PF1 high
+            break;
+        case 3:
+            PORTC |= 0b01000000; // PC6 high
+            PORTF |= 0b00000011; // PF0, PF1 high
+            break;
+        case 4:
+            PORTC |= 0b11000000; // PC6, PC7 high
+            break;
+        case 5:
+            PORTC |= 0b11000000; // PC6, PC7 high
+            PORTF |= 0b00000001; // PF0 high
+            break;
+        case 6:
+            PORTC |= 0b11000000; // PC6, PC7 high
+            PORTF |= 0b00000010; // PF1 high
+            break;
+        case 7:
+            PORTC |= 0b11000000; // PC6, PC7 high
+            PORTF |= 0b00000011; // PF0, PF1 high
+            break;
+        case 8:
+            PORTB |= 0b01000000; // PB6 high
+            break;
+        case 9:
+            PORTB |= 0b01000000; // PB6 high
+            PORTF |= 0b00000001; // PF0 high
+            break;
+        case 10:
+            PORTB |= 0b01000000; // PB6 high
+            PORTF |= 0b00000010; // PF1 high
+            break;
+        case 11:
+            PORTB |= 0b01000000; // PB6 high
+            PORTF |= 0b00000011; // PF0, PF1 high
+            break;
+        case 12:
+            PORTB |= 0b01000000; // PB6 high
+            PORTC |= 0b10000000; // PC7 high
+            break;
+        case 13:
+            PORTB |= 0b01000000; // PB6 high
+            PORTF |= 0b00000001; // PF0 high
+            PORTC |= 0b10000000; // PC7 high
+            break;
+        case 15:
+            PORTB |= 0b01000000; // PB6 high
+            PORTF |= 0b00000010; // PF1 high
+            PORTC |= 0b10000000; // PC7 high
+            break;
+    }
+}
-- 
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