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 }
  37
  38 __attribute__ ((weak))
  39 void matrix_setup(void) {}
  40
  41 __attribute__ ((weak))
  42 bool matrix_is_on(uint8_t row, uint8_t col)
  43 {
  44     return (matrix_get_row(row) & (1<<col));
  45 }
  46
  47 __attribute__ ((weak))
  48 void matrix_print(void)
  49 {
  50 #if (MATRIX_COLS <= 8)
  51     print("r/c 01234567\n");
  52 #elif (MATRIX_COLS <= 16)
  53     print("r/c 0123456789ABCDEF\n");
  54 #elif (MATRIX_COLS <= 32)
  55     print("r/c 0123456789ABCDEF0123456789ABCDEF\n");
  56 #endif
  57
  58     for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
  59
  60 #if (MATRIX_COLS <= 8)
  61         xprintf("%02X: %08b%s\n", row, bitrev(matrix_get_row(row)),
  62 #elif (MATRIX_COLS <= 16)
  63         xprintf("%02X: %016b%s\n", row, bitrev16(matrix_get_row(row)),
  64 #elif (MATRIX_COLS <= 32)
  65         xprintf("%02X: %032b%s\n", row, bitrev32(matrix_get_row(row)),
  66 #endif
  67 #ifdef MATRIX_HAS_GHOST
  68         matrix_has_ghost_in_row(row) ?  " <ghost" : ""
  69 #else
  70         ""
  71 #endif
  72         );
  73     }
  74 }
  75
  76 #ifdef MATRIX_HAS_GHOST
  77 __attribute__ ((weak))
  78 bool matrix_has_ghost_in_row(uint8_t row)
  79 {
  80     matrix_row_t matrix_row = matrix_get_row(row);
  81     // No ghost exists when less than 2 keys are down on the row
  82     if (((matrix_row - 1) & matrix_row) == 0)
  83         return false;
  84
  85     // Ghost occurs when the row shares column line with other row
  86     for (uint8_t i=0; i < MATRIX_ROWS; i++) {
  87         if (i != row && (matrix_get_row(i) & matrix_row))
  88             return true;
  89     }
  90     return false;
  91 }
  92 #endif
  93
  94 __attribute__ ((weak)) void matrix_power_up(void) {}
  95 __attribute__ ((weak)) void matrix_power_down(void) {}