tmk_core/common/matrix.c

   1 /*
   2 Copyright 2016 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #include "print.h"
  18 #include "matrix.h"
  19
  20
  21 __attribute__ ((weak))
  22 uint8_t matrix_rows(void)
  23 {
  24     return MATRIX_ROWS;
  25 }
  26
  27 __attribute__ ((weak))
  28 uint8_t matrix_cols(void)
  29 {
  30     return MATRIX_COLS;
  31 }
  32
  33 __attribute__ ((weak))
  34 void matrix_clear(void)
  35 {
  36     matrix_init();
  37 }
  38
  39 __attribute__ ((weak))
  40 void matrix_setup(void) {}
  41
  42 __attribute__ ((weak))
  43 bool matrix_is_on(uint8_t row, uint8_t col)
  44 {
  45     return (matrix_get_row(row) & (1<<col));
  46 }
  47
  48 __attribute__ ((weak))
  49 void matrix_print(void)
  50 {
  51 #if (MATRIX_COLS <= 8)
  52     print("r/c 01234567\n");
  53 #elif (MATRIX_COLS <= 16)
  54     print("r/c 0123456789ABCDEF\n");
  55 #elif (MATRIX_COLS <= 32)
  56     print("r/c 0123456789ABCDEF0123456789ABCDEF\n");
  57 #endif
  58     for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
  59         xprintf("%02X:", row);
  60
  61 #if (MATRIX_COLS <= 8)
  62         print_bin_reverse8(matrix_get_row(row));
  63 #elif (MATRIX_COLS <= 16)
  64         print_bin_reverse16(matrix_get_row(row));
  65 #elif (MATRIX_COLS <= 32)
  66         print_bin_reverse32(matrix_get_row(row));
  67 #endif
  68
  69 #ifdef MATRIX_HAS_GHOST
  70         if (matrix_has_ghost_in_row(row)) {
  71             print(" <ghost");
  72         }
  73 #endif
  74         print("\n");
  75     }
  76 }
  77
  78 #ifdef MATRIX_HAS_GHOST
  79 __attribute__ ((weak))
  80 bool matrix_has_ghost_in_row(uint8_t row)
  81 {
  82     matrix_row_t matrix_row = matrix_get_row(row);
  83     // No ghost exists when less than 2 keys are down on the row
  84     if (((matrix_row - 1) & matrix_row) == 0)
  85         return false;
  86
  87     // Ghost occurs when the row shares column line with other row
  88     for (uint8_t i=0; i < MATRIX_ROWS; i++) {
  89         if (i != row && (matrix_get_row(i) & matrix_row))
  90             return true;
  91     }
  92     return false;
  93 }
  94 #endif
  95
  96 __attribute__ ((weak)) void matrix_power_up(void) {}
  97 __attribute__ ((weak)) void matrix_power_down(void) {}