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To prevent key stuck clear matrix array when ADB error occurs.

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This commit is contained in:
tmk 2012-09-20 12:52:45 +09:00
parent dd0017558e
commit d8ce19abd0
2 changed files with 40 additions and 34 deletions
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69
converter/adb_usb/matrix.c
View file

@ -38,27 +38,22 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
# error "MATRIX_ROWS must not exceed 255"
#endif
#define CAPS 0x39
#define CAPS_UP (CAPS | 0x80)
#define ROW(key) ((key)>>3&0x0F)
#define COL(key) ((key)&0x07)
#define ADB_CAPS_UP (ADB_CAPS | 0x80)
static bool _matrix_is_modified = false;
static bool is_modified = false;
// matrix state buffer(1:on, 0:off)
#if (MATRIX_COLS <= 8)
static uint8_t *matrix;
static uint8_t _matrix0[MATRIX_ROWS];
static uint8_t matrix[MATRIX_ROWS];
#else
static uint16_t *matrix;
static uint16_t _matrix0[MATRIX_ROWS];
static uint16_t matrix[MATRIX_ROWS];
#endif
#ifdef MATRIX_HAS_GHOST
static bool matrix_has_ghost_in_row(uint8_t row);
#endif
static void _register_key(uint8_t key);
static void register_key(uint8_t key);
inline
@ -78,8 +73,7 @@ void matrix_init(void)
adb_host_init();
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
matrix = _matrix0;
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
print_enable = true;
debug_enable = true;
@ -95,48 +89,53 @@ uint8_t matrix_scan(void)
uint16_t codes;
uint8_t key0, key1;
_matrix_is_modified = false;
is_modified = false;
codes = adb_host_kbd_recv();
key0 = codes>>8;
key1 = codes&0xFF;
if (debug_enable && codes) {
if (debug_matrix && codes) {
print("adb_host_kbd_recv: "); phex16(codes); print("\n");
}
#ifdef MATRIX_HAS_LOCKING_CAPS
// Send Caps key up event
if (matrix_is_on(ROW(CAPS), COL(CAPS))) {
_matrix_is_modified = true;
_register_key(CAPS_UP);
if (matrix_is_on(MATRIX_ROW(ADB_CAPS), MATRIX_COL(ADB_CAPS))) {
register_key(ADB_CAPS_UP);
}
#endif
if (codes == 0) { // no keys
return 0;
} else if (key0 == 0xFF && key1 != 0xFF) { // error
return codes&0xFF;
} else if (codes == 0x7F7F) { // power key press
register_key(0x7F);
} else if (codes == 0xFFFF) { // power key release
register_key(0xFF);
} else if (key0 == 0xFF) { // error
if (debug_matrix) print("adb_host_kbd_recv: ERROR(matrix cleared.)\n");
// clear matrix to unregister all keys
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
return key1;
} else {
#ifdef MATRIX_HAS_LOCKING_CAPS
if (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) {
// Ignore LockingCaps key down event when CAPS LOCK is on
if (key0 == CAPS && (key1 == CAPS || key1 == 0xFF)) return 0;
if (key0 == CAPS) key0 = key1;
if (key1 == CAPS) key1 = 0xFF;
if (key0 == ADB_CAPS && (key1 == ADB_CAPS || key1 == 0xFF)) return 0;
if (key0 == ADB_CAPS) key0 = key1;
if (key1 == ADB_CAPS) key1 = 0xFF;
// Convert LockingCaps key up event into down event
if (key0 == CAPS_UP) key0 = CAPS;
if (key1 == CAPS_UP) key1 = CAPS;
if (key0 == ADB_CAPS_UP) key0 = ADB_CAPS;
if (key1 == ADB_CAPS_UP) key1 = ADB_CAPS;
} else {
// CAPS LOCK off:
// Ignore LockingCaps key up event when CAPS LOCK is off
if (key0 == CAPS_UP && (key1 == CAPS_UP || key1 == 0xFF)) return 0;
if (key0 == CAPS_UP) key0 = key1;
if (key1 == CAPS_UP) key1 = 0xFF;
// ADB_CAPS LOCK off:
// Ignore LockingCaps key up event when ADB_CAPS LOCK is off
if (key0 == ADB_CAPS_UP && (key1 == ADB_CAPS_UP || key1 == 0xFF)) return 0;
if (key0 == ADB_CAPS_UP) key0 = key1;
if (key1 == ADB_CAPS_UP) key1 = 0xFF;
}
#endif
_matrix_is_modified = true;
_register_key(key0);
register_key(key0);
if (key1 != 0xFF) // key1 is 0xFF when no second key.
_register_key(key1);
register_key(key1);
}
return 1;
@ -144,7 +143,7 @@ uint8_t matrix_scan(void)
bool matrix_is_modified(void)
{
return _matrix_is_modified;
return is_modified;
}
inline
@ -177,6 +176,7 @@ uint16_t matrix_get_row(uint8_t row)
void matrix_print(void)
{
if (!debug_matrix) return;
#if (MATRIX_COLS <= 8)
print("r/c 01234567\n");
#else
@ -229,7 +229,7 @@ static bool matrix_has_ghost_in_row(uint8_t row)
#endif
inline
static void _register_key(uint8_t key)
static void register_key(uint8_t key)
{
uint8_t col, row;
col = key&0x07;
@ -239,4 +239,5 @@ static void _register_key(uint8_t key)
} else {
matrix[row] |= (1<<col);
}
is_modified = true;
}

5
protocol/adb.h
View file

@ -38,6 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
#ifndef ADB_H
#define ADB_H
#include <stdint.h>
#include <stdbool.h>
#if !(defined(ADB_PORT) && \
@ -47,6 +48,10 @@ POSSIBILITY OF SUCH DAMAGE.
# error "ADB port setting is required in config.h"
#endif
#define ADB_POWER 0x7F
#define ADB_CAPS 0x39
// ADB host
void adb_host_init(void);
bool adb_host_psw(void);