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authortmk <nobody@nowhere>2011-01-06 15:18:55 +0900
committertmk <nobody@nowhere>2011-01-06 15:33:08 +0900
commitfd49c69d1a173b9d273b2b53eb6a22eda920223a (patch)
tree46c6a012a5ecba881fbd78ad7ccb9051e493340e /macway/matrix.c
parent590235d4bc92d1de4c17b96ae54f4daee8c3db2a (diff)
added config option: MATRIX_HAS_GHOST and fixed some on matrix.c
ADD: Build option: MATRIX_HAS_GHOST to enable ghost blocking logic. FIX: choose matrix buffer type(uint8_t/uint16_t) automatically depending on column size in matrix.c. FIX: use uint8_t insted of int in matrix.c.
Diffstat (limited to 'macway/matrix.c')
-rw-r--r--macway/matrix.c75
1 files changed, 57 insertions, 18 deletions
diff --git a/macway/matrix.c b/macway/matrix.c
index 7c2a421059..f8c0640fd7 100644
--- a/macway/matrix.c
+++ b/macway/matrix.c
@@ -10,31 +10,47 @@
#include "matrix_skel.h"
-// matrix state buffer (key on: 1/key off: 0)
+#if (MATRIX_COLS > 16)
+# error "MATRIX_COLS must not exceed 16"
+#endif
+#if (MATRIX_ROWS > 255)
+# error "MATRIX_ROWS must not exceed 255"
+#endif
+
+
+// matrix state buffer(1:on, 0:off)
+#if (MATRIX_COLS <= 8)
static uint8_t *matrix;
static uint8_t *matrix_prev;
static uint8_t _matrix0[MATRIX_ROWS];
static uint8_t _matrix1[MATRIX_ROWS];
-
+#else
+static uint16_t *matrix;
+static uint16_t *matrix_prev;
+static uint16_t _matrix0[MATRIX_ROWS];
+static uint16_t _matrix1[MATRIX_ROWS];
+#endif
+
+#ifdef MATRIX_HAS_GHOST
static bool matrix_has_ghost_in_row(uint8_t row);
+#endif
static uint8_t read_col(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
inline
-int matrix_rows(void)
+uint8_t matrix_rows(void)
{
return MATRIX_ROWS;
}
inline
-int matrix_cols(void)
+uint8_t matrix_cols(void)
{
return MATRIX_COLS;
}
-// this must be called once before matrix_scan.
void matrix_init(void)
{
// initialize row and col
@@ -44,13 +60,13 @@ void matrix_init(void)
PORTB = 0xFF;
// initialize matrix state: all keys off
- for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
- for (int i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00;
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00;
matrix = _matrix0;
matrix_prev = _matrix1;
}
-int matrix_scan(void)
+uint8_t matrix_scan(void)
{
uint8_t *tmp;
@@ -58,7 +74,7 @@ int matrix_scan(void)
matrix_prev = matrix;
matrix = tmp;
- for (int i = 0; i < MATRIX_ROWS; i++) {
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
unselect_rows();
select_row(i);
_delay_us(30); // without this wait read unstable value.
@@ -70,30 +86,37 @@ int matrix_scan(void)
bool matrix_is_modified(void)
{
- for (int i = 0; i < MATRIX_ROWS; i++) {
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
if (matrix[i] != matrix_prev[i])
return true;
}
return false;
}
+inline
bool matrix_has_ghost(void)
{
- for (int i = 0; i < MATRIX_ROWS; i++) {
+#ifdef MATRIX_HAS_GHOST
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
if (matrix_has_ghost_in_row(i))
return true;
}
+#endif
return false;
}
inline
-bool matrix_is_on(int row, int col)
+bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[row] & (1<<col));
}
inline
-uint16_t matrix_get_row(int row)
+#if (MATRIX_COLS <= 8)
+uint8_t matrix_get_row(uint8_t row)
+#else
+uint16_t matrix_get_row(uint8_t row)
+#endif
{
return matrix[row];
}
@@ -101,25 +124,37 @@ uint16_t matrix_get_row(int row)
void matrix_print(void)
{
print("\nr/c 01234567\n");
- for (int row = 0; row < matrix_rows(); row++) {
+ for (uint8_t row = 0; row < matrix_rows(); row++) {
phex(row); print(": ");
+#if (MATRIX_COLS <= 8)
pbin_reverse(matrix_get_row(row));
+#else
+ pbin_reverse16(matrix_get_row(row));
+#endif
+#ifdef MATRIX_HAS_GHOST
if (matrix_has_ghost_in_row(row)) {
print(" <ghost");
}
+#endif
print("\n");
}
}
-int matrix_key_count(void)
+uint8_t matrix_key_count(void)
{
- int count = 0;
- for (int i = 0; i < MATRIX_ROWS; i++) {
+ uint8_t count = 0;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+#if (MATRIX_COLS <= 8)
count += bitpop(matrix[i]);
+#else
+ count += bitpop16(matrix[i]);
+#endif
}
return count;
}
+#ifdef MATRIX_HAS_GHOST
+inline
static bool matrix_has_ghost_in_row(uint8_t row)
{
// no ghost exists in case less than 2 keys on
@@ -127,18 +162,21 @@ static bool matrix_has_ghost_in_row(uint8_t row)
return false;
// ghost exists in case same state as other row
- for (int i=0; i < MATRIX_ROWS; i++) {
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
if (i != row && (matrix[i] & matrix[row]) == matrix[row])
return true;
}
return false;
}
+#endif
+inline
static uint8_t read_col(void)
{
return PINB;
}
+inline
static void unselect_rows(void)
{
// Hi-Z(DDR:0, PORT:0) to unselect
@@ -150,6 +188,7 @@ static void unselect_rows(void)
PORTF &= ~0b11000000;
}
+inline
static void select_row(uint8_t row)
{
// Output low(DDR:1, PORT:0) to select