Updates to local gitignore

[tmk_firmware.git] / hhkb / matrix.c

diff --git a/hhkb/matrix.c b/hhkb/matrix.c
deleted file mode 100644 (file)
index a425439..0000000
--- a/hhkb/matrix.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * scan matrix
- */
-#include <avr/io.h>
-#include <util/delay.h>
-#include "keymap.h"
-#include "matrix.h"
-#include "print.h"
-
-// matrix is active low. (key on: 0/key off: 1)
-//
-// HHKB has no ghost and no bounce.
-// row: HC4051 select input channel(0-8)
-//      PB0, PB1, PB2(A, B, C)
-// col: LS145 select low output line(0-8)
-//      PB3, PB4, PB5, PB6(A, B, C, D)
-//      use D as ENABLE: (enable: 0/unenable: 1)
-// key: KEY: (on: 0/ off:1)
-//      UNKNOWN: unknown whether input or output
-//      PE6,PE7(KEY, UNKNOWN)
-#define COL_ENABLE              (1<<6)
-#define KEY_SELELCT(ROW, COL)   (PORTB = COL_ENABLE|(((COL)&0x07)<<3)|((ROW)&0x07))
-#define KEY_ENABLE              (PORTB &= ~COL_ENABLE)
-#define KEY_UNABLE              (PORTB |=  COL_ENABLE)
-#define KEY_ON                  ((PINE&(1<<6)) ? false : true)
-
-// matrix state buffer
-uint8_t *matrix;
-uint8_t *matrix_prev;
-static uint8_t _matrix0[MATRIX_ROWS];
-static uint8_t _matrix1[MATRIX_ROWS];
-
-
-static bool matrix_has_ghost_in_row(int row);
-static int bit_pop(uint8_t bits);
-
-
-inline
-int matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-int matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-// this must be called once before matrix_scan.
-void matrix_init(void)
-{
-    // row & col output(PB0-6)
-    DDRB = 0xFF;
-    PORTB = KEY_SELELCT(0, 0);
-    // KEY & VALID input with pullup(PE6,7)
-    DDRE = 0x3F;
-    PORTE = 0xC0;
-
-    // initialize matrix state: all keys off
-    for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0xFF;
-    for (int i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0xFF;
-    matrix = _matrix0;
-    matrix_prev = _matrix1;
-}
-
-int matrix_scan(void)
-{
-    uint8_t *tmp;
-
-    tmp = matrix_prev;
-    matrix_prev = matrix;
-    matrix = tmp;
-
-    for (int row = 0; row < MATRIX_ROWS; row++) {
-        for (int col = 0; col < MATRIX_COLS; col++) {
-            KEY_SELELCT(row, col);
-            _delay_us(50);  // from logic analyzer chart
-            KEY_ENABLE;
-            _delay_us(10);  // from logic analyzer chart
-            if (KEY_ON) {
-                matrix[row] &= ~(1<<col);
-            } else {
-                matrix[row] |= (1<<col);
-            }
-            KEY_UNABLE;
-            _delay_us(150);  // from logic analyzer chart
-        }
-    }
-    return 1;
-}
-
-bool matrix_is_modified(void) {
-    for (int i = 0; i < MATRIX_ROWS; i++) {
-        if (matrix[i] != matrix_prev[i])
-            return true;
-    }
-    return false;
-}
-
-inline
-bool matrix_has_ghost(void) {
-    return false;
-}
-
-inline
-uint16_t matrix_get_row(int row) {
-    return matrix[row];
-}
-
-void matrix_print(void) {
-    print("\nr/c 01234567\n");
-    for (int row = 0; row < matrix_rows(); row++) {
-        phex(row); print(": ");
-        pbin_reverse(matrix_get_row(row));
-        if (matrix_has_ghost_in_row(row)) {
-            print(" <ghost");
-        }
-        print("\n");
-    }
-}
-
-int matrix_key_count(void) {
-    int count = 0;
-    for (int i = 0; i < MATRIX_ROWS; i++) {
-        count += bit_pop(~matrix[i]);
-    }
-    return count;
-}
-
-inline
-static bool matrix_has_ghost_in_row(int row) {
-    return false;
-}
-
-static int bit_pop(uint8_t bits) {
-    int c;
-    for (c = 0; bits; c++)
-        bits &= bits -1;
-    return c;
-}