[Keyboard] Add Owlet60 Keyboard to qmk_firmware/keyboards/handwired (#6803)

* first commit, skeleton code, not sure if working

* Owlet 60 working firmware, json not sure

* use json from kle to qmk converter

* deleted temporary text from owlet60.h

* owlet60 working oled and led firmware

* moved owlet60 to handwired

* updated readme.md

* Revert "owlet60 working oled and led firmware"

This reverts commit 27f9465aabd62d9ee445b477a02af348160532c1.

* Revert "moved owlet60 to handwired"

This reverts commit 9b8e8344fc303ddc4dcc3b023d4e9d05b89d5800.

* revert changes, moved owlet60 to handwired, updated copyright blurb

* fixed readme.md

* removed duplicate items

* resolve merge artifact

* Update keyboards/handwired/owlet60/readme.md

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* check out merge artifacts with qmk master

* Update keyboards/handwired/owlet60/matrix.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/handwired/owlet60/matrix.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/handwired/owlet60/matrix.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/handwired/owlet60/matrix.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* removed redundant rule on oled_testing/rules.mk, refactored mux switching code on matrix.c

1 files changed, 315 insertions, 0 deletions

diff --git a/keyboards/handwired/owlet60/matrix.c b/keyboards/handwired/owlet60/matrix.c
new file mode 100644
index 0000000000..8ecce4eb12
--- /dev/null
+++ b/keyboards/handwired/owlet60/matrix.c
@@ -0,0 +1,315 @@
+/*
+Copyright 2019 worthlessowl
+based on work by:
+Jun Wako <wakojun@gmail.com>
+Cole Markham <cole@ccmcomputing.net>
+
+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 "owlet60.h"
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "config.h"
+#include "timer.h"
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_select_pins[3] = MATRIX_COL_SELECT_PINS;
+static const uint8_t dat_pin = MATRIX_COL_DATA_PIN;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t raw_matrix[MATRIX_ROWS]; //raw values
+static matrix_row_t matrix[MATRIX_ROWS]; //raw values
+
+/* 2d array containing binary representation of its index */
+static const uint8_t num_in_binary[8][3] = {
+    {0, 0, 0},
+    {0, 0, 1},
+    {0, 1, 0},
+    {0, 1, 1},
+    {1, 0, 0},
+    {1, 0, 1},
+    {1, 1, 0},
+    {1, 1, 1},
+};
+
+static void select_col_analog(uint8_t col);
+static void mux_pin_control(const uint8_t binary[]);
+void debounce_init(uint8_t num_rows);
+void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed);
+
+
+__attribute__ ((weak))
+void matrix_init_user(void) {}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+  matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+  matrix_scan_user();
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+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)
+{
+    // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
+    // switch blocker installed and the switch is always pressed.
+#ifdef MATRIX_MASKED
+    return matrix[row] & matrix_mask[row];
+#else
+    return matrix[row];
+#endif
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
+
+// uses standard row code
+static void select_row(uint8_t row)
+{
+    setPinOutput(row_pins[row]);
+    writePinLow(row_pins[row]);
+}
+
+static void unselect_row(uint8_t row)
+{
+    setPinInputHigh(row_pins[row]);
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        setPinInputHigh(row_pins[x]);
+    }
+}
+
+static void init_pins(void) {   // still need some fixing, this might not work
+  unselect_rows();              // with the loop
+  /*
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+  */
+  setPinInputHigh(dat_pin);
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        select_col_analog(col_index);
+        wait_us(30);
+        uint8_t pin_state = readPin(dat_pin);
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+
+void matrix_init(void) {
+
+    // initialize key pins
+    init_pins();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        raw_matrix[i] = 0;
+        matrix[i] = 0;
+    }
+
+    debounce_init(MATRIX_ROWS);
+
+    matrix_init_quantum();
+
+    setPinInput(D5);
+   writePinLow(D5);
+
+   setPinInput(B0);
+   writePinLow(B0);
+}
+
+// modified for per col read matrix scan
+uint8_t matrix_scan(void)
+{
+    bool changed = false;
+        
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+        changed |= read_cols_on_row(raw_matrix, current_row);
+    } 
+
+    debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
+
+    matrix_scan_quantum();
+    return (uint8_t)changed;
+}
+
+/*
+uint8_t matrix_scan(void)
+{
+  bool changed = false;
+
+#if (DIODE_DIRECTION == COL2ROW)
+  // Set row, read cols
+  for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+    changed |= read_cols_on_row(raw_matrix, current_row);
+  }
+#endif
+
+  debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
+
+  matrix_scan_quantum();
+  return (uint8_t)changed;
+}
+*/
+
+static void select_col_analog(uint8_t col) {
+    switch(col) {
+
+        case 0:
+            mux_pin_control(num_in_binary[0]);
+            break;
+        case 1:
+            mux_pin_control(num_in_binary[1]);
+            break;
+        case 2:
+            mux_pin_control(num_in_binary[2]);
+            break;
+        case 3:
+            mux_pin_control(num_in_binary[3]);
+            break;
+        case 4:
+            mux_pin_control(num_in_binary[4]);
+            break;
+        case 5:
+            mux_pin_control(num_in_binary[5]);
+            break;
+        case 6:
+            mux_pin_control(num_in_binary[6]);
+            break;
+        case 7:
+            mux_pin_control(num_in_binary[7]);
+            break;
+        default:
+            break;
+    }
+}
+
+static void mux_pin_control(const uint8_t binary[]) {
+    // set pin0
+    setPinOutput(col_select_pins[0]);
+    if(binary[0] == 0) {
+        writePinLow(col_select_pins[0]);
+    }
+    else {
+        writePinHigh(col_select_pins[0]);
+    }
+    // set pin1
+    setPinOutput(col_select_pins[1]);
+    if(binary[1] == 0) {
+        writePinLow(col_select_pins[1]);
+    }
+    else {
+        writePinHigh(col_select_pins[1]);
+    }
+    // set pin2
+    setPinOutput(col_select_pins[2]);
+    if(binary[2] == 0) {
+        writePinLow(col_select_pins[2]);
+    }
+    else {
+        writePinHigh(col_select_pins[2]);
+    }
+}