feat(src): Make usable

1 files changed, 211 insertions, 0 deletions

diff --git a/src/matrix.c b/src/matrix.c
new file mode 100644
index 0000000..867fa85
--- /dev/null
+++ b/src/matrix.c
@@ -0,0 +1,211 @@
+/* Copyright 2020 ZSA Technology Labs, Inc <@zsa>
+ * Copyright 2020 Jack Humbert <jack.humb@gmail.com>
+ * Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.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 "moonlander.h"
+#include "mcp23018.h"
+
+#pragma GCC push_options
+#pragma GCC optimize("-O3")
+/*
+#define MATRIX_ROW_PINS { B10, B11, B12, B13, B14, B15 } outputs
+#define MATRIX_COL_PINS { A0, A1, A2, A3, A6, A7, B0 }   inputs
+#define MCP23_ROW_PINS { GPB5, GBP4, GBP3, GBP2, GBP1, GBP0 }       outputs
+#define MCP23_COL_PINS { GPA0, GBA1, GBA2, GBA3, GBA4, GBA5, GBA6 } inputs
+
+ */
+/* matrix state(1:on, 0:off) */
+extern matrix_row_t matrix[MATRIX_ROWS];     // debounced values
+extern matrix_row_t raw_matrix[MATRIX_ROWS]; // raw values
+static matrix_row_t raw_matrix_right[MATRIX_ROWS];
+
+#define MCP_ROWS_PER_HAND (MATRIX_ROWS / 2)
+
+extern bool mcp23018_leds[3];
+extern bool is_launching;
+
+static uint16_t mcp23018_reset_loop;
+uint8_t         mcp23018_errors;
+
+bool io_expander_ready(void) {
+    uint8_t tx;
+    return mcp23018_read_pins(MCP23018_DEFAULT_ADDRESS, mcp23018_PORTA, &tx);
+}
+
+void matrix_init_custom(void) {
+    // outputs
+    gpio_set_pin_output(B10);
+    gpio_set_pin_output(B11);
+    gpio_set_pin_output(B12);
+    gpio_set_pin_output(B13);
+    gpio_set_pin_output(B14);
+    gpio_set_pin_output(B15);
+
+    // inputs
+    gpio_set_pin_input_low(A0);
+    gpio_set_pin_input_low(A1);
+    gpio_set_pin_input_low(A2);
+    gpio_set_pin_input_low(A3);
+    gpio_set_pin_input_low(A6);
+    gpio_set_pin_input_low(A7);
+    gpio_set_pin_input_low(B0);
+
+    mcp23018_init(MCP23018_DEFAULT_ADDRESS);
+    mcp23018_errors += !mcp23018_set_config(MCP23018_DEFAULT_ADDRESS, mcp23018_PORTA, 0b00000000);
+    mcp23018_errors += !mcp23018_set_config(MCP23018_DEFAULT_ADDRESS, mcp23018_PORTB, 0b00111111);
+
+    if (!mcp23018_errors) {
+        is_launching = true;
+    }
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+    bool changed = false;
+    // Attempt to reset the mcp23018 if it's not initialized
+    if (mcp23018_errors) {
+        if (++mcp23018_reset_loop > 0x1FFF) {
+            if (io_expander_ready()) {
+                // If we managed to initialize the mcp23018 - we need to reinitialize the matrix / layer state. During an electric discharge the i2c peripherals might be in a weird state. Giving a delay and resetting the MCU allows to recover from this.
+                wait_ms(200);
+                mcu_reset();
+            }
+        }
+    }
+
+    matrix_row_t data = 0;
+    // actual matrix
+    for (uint8_t row = 0; row <= MCP_ROWS_PER_HAND; row++) {
+        // strobe row
+        switch (row) {
+            case 0:
+                gpio_write_pin_high(B10);
+                break;
+            case 1:
+                gpio_write_pin_high(B11);
+                break;
+            case 2:
+                gpio_write_pin_high(B12);
+                break;
+            case 3:
+                gpio_write_pin_high(B13);
+                break;
+            case 4:
+                gpio_write_pin_high(B14);
+                break;
+            case 5:
+                gpio_write_pin_high(B15);
+                break;
+            case 6:
+                break; // Left hand has 6 rows
+        }
+
+        // Selecting the row on the right side of the keyboard.
+        if (!mcp23018_errors) {
+            // select row
+            mcp23018_errors += !mcp23018_set_output_all(MCP23018_DEFAULT_ADDRESS, (0b01111111 & ~(1 << (row))) | ((uint8_t)!mcp23018_leds[2] << 7), ((uint8_t)!mcp23018_leds[1] << 6) | ((uint8_t)!mcp23018_leds[0] << 7));
+        }
+
+        // Reading the left side of the keyboard.
+        if (row < MCP_ROWS_PER_HAND) {
+            // i2c comm incur enough wait time
+            if (mcp23018_errors) {
+                // need wait to settle pin state
+                matrix_io_delay();
+            }
+            // read col data
+            data = ((readPin(A0) << 0) | (readPin(A1) << 1) | (readPin(A2) << 2) | (readPin(A3) << 3) | (readPin(A6) << 4) | (readPin(A7) << 5) | (readPin(B0) << 6));
+            // unstrobe  row
+            switch (row) {
+                case 0:
+                    gpio_write_pin_low(B10);
+                    break;
+                case 1:
+                    gpio_write_pin_low(B11);
+                    break;
+                case 2:
+                    gpio_write_pin_low(B12);
+                    break;
+                case 3:
+                    gpio_write_pin_low(B13);
+                    break;
+                case 4:
+                    gpio_write_pin_low(B14);
+                    break;
+                case 5:
+                    gpio_write_pin_low(B15);
+                    break;
+                case 6:
+                    break;
+            }
+
+            if (current_matrix[row] != data) {
+                current_matrix[row] = data;
+                changed             = true;
+            }
+        }
+
+        // Reading the right side of the keyboard.
+        if (!mcp23018_errors) {
+            uint8_t rx;
+            mcp23018_errors += !mcp23018_read_pins(MCP23018_DEFAULT_ADDRESS, mcp23018_PORTB, &rx);
+            data = ~(rx & 0b00111111);
+        } else {
+            data = 0;
+        }
+
+        if (raw_matrix_right[row] != data) {
+            raw_matrix_right[row] = data;
+            changed               = true;
+        }
+    }
+
+    for (uint8_t row = 0; row < MCP_ROWS_PER_HAND; row++) {
+        current_matrix[11 - row] = 0;
+        for (uint8_t col = 0; col < MATRIX_COLS; col++) {
+            current_matrix[11 - row] |= ((raw_matrix_right[6 - col] & (1 << row) ? 1 : 0) << col);
+        }
+    }
+    return changed;
+}
+
+// DO NOT REMOVE
+// Needed for proper wake/sleep
+void matrix_power_up(void) {
+    bool temp_launching = is_launching;
+
+    matrix_init_custom();
+
+    is_launching = temp_launching;
+    if (!is_launching) {
+        ML_LED_1(false);
+        ML_LED_2(false);
+        ML_LED_3(false);
+        ML_LED_4(false);
+        ML_LED_5(false);
+        ML_LED_6(false);
+    }
+
+    // initialize matrix state: all keys off
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+    }
+}
+
+bool is_transport_connected(void) {
+    return (bool)(mcp23018_errors == 0);
+}
+#pragma GCC pop_options