1 files changed, 328 insertions, 0 deletions

diff --git a/keyboards/ai03/orbit/matrix.c b/keyboards/ai03/orbit/matrix.c
new file mode 100644
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+++ b/keyboards/ai03/orbit/matrix.c
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+/*
+Copyright 2012 Jun Wako <[email protected]>
+
+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 "wait.h"
+#include "util.h"
+#include "matrix.h"
+#include "split_util.h"
+#include "config.h"
+#include "split_flags.h"
+#include "quantum.h"
+#include "debounce.h"
+#include "transport.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
+
+#define ERROR_DISCONNECT_COUNT 5
+
+//#define ROWS_PER_HAND (MATRIX_ROWS / 2)
+
+#ifdef DIRECT_PINS
+static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
+#else
+static pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t raw_matrix[ROWS_PER_HAND];
+
+// row offsets for each hand
+uint8_t thisHand, thatHand;
+
+// user-defined overridable functions
+
+__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) {}
+
+__attribute__((weak)) void matrix_slave_scan_user(void) {}
+
+// helper functions
+
+inline uint8_t matrix_rows(void) { return MATRIX_ROWS; }
+
+inline uint8_t matrix_cols(void) { return MATRIX_COLS; }
+
+bool matrix_is_modified(void) {
+  if (debounce_active()) return false;
+  return true;
+}
+
+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_matrix_header();
+
+  for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+    print_hex8(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;
+}
+
+// matrix code
+
+#ifdef DIRECT_PINS
+
+static void init_pins(void) {
+  for (int row = 0; row < MATRIX_ROWS; row++) {
+    for (int col = 0; col < MATRIX_COLS; col++) {
+      pin_t pin = direct_pins[row][col];
+      if (pin != NO_PIN) {
+        setPinInputHigh(pin);
+      }
+    }
+  }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+  matrix_row_t last_row_value = current_matrix[current_row];
+  current_matrix[current_row] = 0;
+
+  for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+    pin_t pin = direct_pins[current_row][col_index];
+    if (pin != NO_PIN) {
+      current_matrix[current_row] |= readPin(pin) ? 0 : (ROW_SHIFTER << col_index);
+    }
+  }
+
+  return (last_row_value != current_matrix[current_row]);
+}
+
+#elif (DIODE_DIRECTION == COL2ROW)
+
+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 < ROWS_PER_HAND; x++) {
+    setPinInputHigh(row_pins[x]);
+  }
+}
+
+static void init_pins(void) {
+  unselect_rows();
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+}
+
+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++) {
+    // Populate the matrix row with the state of the col pin
+    current_matrix[current_row] |= readPin(col_pins[col_index]) ? 0 : (ROW_SHIFTER << col_index);
+  }
+
+  // Unselect row
+  unselect_row(current_row);
+
+  return (last_row_value != current_matrix[current_row]);
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void select_col(uint8_t col) {
+  setPinOutput(col_pins[col]);
+  writePinLow(col_pins[col]);
+}
+
+static void unselect_col(uint8_t col) { setPinInputHigh(col_pins[col]); }
+
+static void unselect_cols(void) {
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+}
+
+static void init_pins(void) {
+  unselect_cols();
+  for (uint8_t x = 0; x < ROWS_PER_HAND; x++) {
+    setPinInputHigh(row_pins[x]);
+  }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
+  bool matrix_changed = false;
+
+  // Select col and wait for col selecton to stabilize
+  select_col(current_col);
+  wait_us(30);
+
+  // For each row...
+  for (uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) {
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[row_index];
+
+    // Check row pin state
+    if (readPin(row_pins[row_index])) {
+      // Pin HI, clear col bit
+      current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+    } else {
+      // Pin LO, set col bit
+      current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+    }
+
+    // Determine if the matrix changed state
+    if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) {
+      matrix_changed = true;
+    }
+  }
+
+  // Unselect col
+  unselect_col(current_col);
+
+  return matrix_changed;
+}
+
+#endif
+
+void matrix_init(void) {
+  debug_enable = true;
+  debug_matrix = true;
+  debug_mouse  = true;
+
+  // Set pinout for right half if pinout for that half is defined
+  if (!isLeftHand) {
+#ifdef MATRIX_ROW_PINS_RIGHT
+    const uint8_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+      row_pins[i] = row_pins_right[i];
+    }
+#endif
+#ifdef MATRIX_COL_PINS_RIGHT
+    const uint8_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT;
+    for (uint8_t i = 0; i < MATRIX_COLS; i++) {
+      col_pins[i] = col_pins_right[i];
+    }
+#endif
+  }
+
+  thisHand = isLeftHand ? 0 : (ROWS_PER_HAND);
+  thatHand = ROWS_PER_HAND - thisHand;
+
+  // initialize key pins
+  init_pins();
+
+  // initialize matrix state: all keys off
+  for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+    matrix[i] = 0;
+  }
+
+  debounce_init(ROWS_PER_HAND);
+
+  matrix_init_quantum();
+}
+
+uint8_t _matrix_scan(void) {
+  bool changed = false;
+
+#if defined(DIRECT_PINS) || (DIODE_DIRECTION == COL2ROW)
+  // Set row, read cols
+  for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
+    changed |= read_cols_on_row(raw_matrix, current_row);
+  }
+#elif (DIODE_DIRECTION == ROW2COL)
+  // Set col, read rows
+  for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+    changed |= read_rows_on_col(raw_matrix, current_col);
+  }
+#endif
+
+  debounce(raw_matrix, matrix + thisHand, ROWS_PER_HAND, changed);
+
+  return 1;
+}
+
+uint8_t matrix_scan(void) {
+  uint8_t ret = _matrix_scan();
+
+  if (is_keyboard_master()) {
+    static uint8_t error_count;
+
+    if (!transport_master(matrix + thatHand)) {
+      error_count++;
+
+      if (error_count > ERROR_DISCONNECT_COUNT) {
+        // reset other half if disconnected
+        for (int i = 0; i < ROWS_PER_HAND; ++i) {
+          matrix[thatHand + i] = 0;
+        }
+      }
+    } else {
+      error_count = 0;
+    }
+
+    matrix_scan_quantum();
+  } else {
+    transport_slave(matrix + thisHand);
+    matrix_slave_scan_user();
+  }
+
+  return ret;
+}