/*
-Copyright 2012 Jun Wako
-Copyright 2014 Jack Humbert
+Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
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
*/
#include <stdint.h>
#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
#include "wait.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
+#include "debounce.h"
+#include "quantum.h"
#if (MATRIX_COLS <= 8)
# define print_matrix_header() print("\nr/c 01234567\n")
#endif
#ifdef MATRIX_MASKED
-extern const matrix_row_t matrix_mask[];
+ extern const matrix_row_t matrix_mask[];
#endif
-/* Set 0 if debouncing isn't needed */
-
-#ifndef DEBOUNCING_DELAY
-# define DEBOUNCING_DELAY 5
+#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
#endif
-static uint8_t debouncing = DEBOUNCING_DELAY;
-
-static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
-static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t raw_matrix[MATRIX_ROWS];
-static matrix_row_t matrix_raw[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+static matrix_row_t matrix[MATRIX_ROWS];
#if (DIODE_DIRECTION == COL2ROW)
static void init_cols(void);
- static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+ static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
static void unselect_rows(void);
static void select_row(uint8_t row);
static void unselect_row(uint8_t row);
-#else // ROW2COL
+#elif (DIODE_DIRECTION == ROW2COL)
static void init_rows(void);
- static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+ static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
static void unselect_cols(void);
static void unselect_col(uint8_t col);
static void select_col(uint8_t col);
// /* PORTxn */
// _SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
// }
-// #else
+// #elif (DIODE_DIRECTION == ROW2COL)
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
// /* DDRxn */
// _SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
void matrix_init(void) {
- // To use PORTF disable JTAG with writing JTD bit twice within four cycles.
- #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega32U4__))
- MCUCR |= _BV(JTD);
- MCUCR |= _BV(JTD);
- #endif
-
// initialize row and col
#if (DIODE_DIRECTION == COL2ROW)
unselect_rows();
init_cols();
-#else // ROW2COL
+#elif (DIODE_DIRECTION == ROW2COL)
unselect_cols();
init_rows();
#endif
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ raw_matrix[i] = 0;
matrix[i] = 0;
- matrix_raw[i] = 0;
- matrix_debouncing[i] = 0;
}
+ debounce_init(MATRIX_ROWS);
matrix_init_quantum();
}
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++) {
- read_cols_on_row(matrix, current_row);
- }
-
- // select_row(i);
- // wait_us(30); // without this wait read unstable value.
- // matrix_row_t current_row = read_cols();
- // if (matrix_debouncing[i] != current_row) {
- // matrix_debouncing[i] = current_row;
- // if (debouncing) {
- // debug("bounce!: "); debug_hex(debouncing); debug("\n");
- // }
- // debouncing = DEBOUNCING_DELAY;
- // }
- // unselect_row(i);
- // }
-
- // if (debouncing) {
- // if (--debouncing) {
- // wait_ms(1);
- // } else {
- // for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- // matrix[i] = matrix_debouncing[i];
- // }
- // }
- // }
-
-#else // ROW2COL
-
- // Set col, read rows
- for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
- read_rows_on_col(matrix, current_col);
- }
-
-
- // for (uint8_t i = 0; i < MATRIX_COLS; i++) {
- // select_col(i);
- // wait_us(30); // without this wait read unstable value.
- // matrix_col_t current_col = read_rows();
- // if (matrix_transposed_debouncing[i] != current_col) {
- // matrix_transposed_debouncing[i] = current_col;
- // if (debouncing) {
- // debug("bounce!: "); debug_hex(debouncing); debug("\n");
- // }
- // debouncing = DEBOUNCING_DELAY;
- // }
- // unselect_col(i);
- // }
-
- // if (debouncing) {
- // if (--debouncing) {
- // wait_ms(1);
- // } else {
- // for (uint8_t i = 0; i < MATRIX_COLS; i++) {
- // matrix_transposed[i] = matrix_transposed_debouncing[i];
- // }
- // }
- // }
-
- // // Untranspose matrix
- // for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
- // matrix_row_t row = 0;
- // for (uint8_t x = 0; x < MATRIX_COLS; x++) {
- // row |= ((matrix_transposed[x] & (1<<y)) >> y) << x;
- // }
- // matrix[y] = row;
- // }
-
+ // 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);
+ }
+#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
- matrix_scan_quantum();
-// matrix_print();
- return 1;
+ debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
+
+ matrix_scan_quantum();
+ return 1;
}
bool matrix_is_modified(void)
{
- if (debouncing) return false;
+ 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));
+ return (matrix[row] & ((matrix_row_t)1<<col));
}
inline
static void init_cols(void)
{
for(uint8_t x = 0; x < MATRIX_COLS; x++) {
- uint8_t pin = col_pins[x];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInputHigh(col_pins[x]);
}
}
-static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+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;
for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
// Select the col pin to read (active low)
- uint8_t pin = col_pins[col_index];
- uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+ uint8_t pin_state = readPin(col_pins[col_index]);
// 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]);
}
static void select_row(uint8_t row)
{
- uint8_t pin = row_pins[row];
- _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
- _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+ setPinOutput(row_pins[row]);
+ writePinLow(row_pins[row]);
}
static void unselect_row(uint8_t row)
{
- uint8_t pin = row_pins[row];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInputHigh(row_pins[row]);
}
static void unselect_rows(void)
{
for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
- uint8_t pin = row_pins[x];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInput(row_pins[x]);
}
}
-#else // ROW2COL
+#elif (DIODE_DIRECTION == ROW2COL)
static void init_rows(void)
{
for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
- uint8_t pin = row_pins[x];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInputHigh(row_pins[x]);
}
}
-static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+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 < MATRIX_ROWS; row_index++) {
+ for(uint8_t row_index = 0; row_index < MATRIX_ROWS; 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 ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+ if (readPin(row_pins[row_index]) == 0)
{
// Pin LO, set col bit
current_matrix[row_index] |= (ROW_SHIFTER << current_col);
// Pin HI, clear 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;
}
static void select_col(uint8_t col)
{
- uint8_t pin = col_pins[col];
- _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT
- _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+ setPinOutput(col_pins[col]);
+ writePinLow(col_pins[col]);
}
static void unselect_col(uint8_t col)
{
- uint8_t pin = col_pins[col];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInputHigh(col_pins[col]);
}
static void unselect_cols(void)
{
for(uint8_t x = 0; x < MATRIX_COLS; x++) {
- uint8_t pin = col_pins[x];
- _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
- _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI
+ setPinInputHigh(col_pins[x]);
}
}