qmk-firmware/quantum/matrix_common.c

#include "matrix.h"
#include "debounce.h"
#include "print.h"
#include "debug.h"

// 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) {}

// helper functions

inline uint8_t matrix_rows(void) { return MATRIX_ROWS; }

inline uint8_t matrix_cols(void) { return MATRIX_COLS; }

// Deprecated.
bool matrix_is_modified(void) {
    if (debounce_active()) return false;
    return true;
}

#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(row) bitpop(matrix_get_row(row))
#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(row) bitpop16(matrix_get_row(row))
#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(row) bitpop32(matrix_get_row(row))
#endif

void matrix_print(void) {
    print_matrix_header();

    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
        phex(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;
}