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authortmk <nobody@nowhere>2012-09-20 12:52:45 +0900
committertmk <nobody@nowhere>2012-09-20 12:52:45 +0900
commitd8ce19abd06ee9274cee883a379504eba9b470a5 (patch)
tree6f0bde40a973af6e0f899cc3a0e4fab6d2ba63c1 /converter/adb_usb
parentdd0017558e8c582760d9eb0adb2c12a04765b4c5 (diff)
To prevent key stuck clear matrix array when ADB error occurs.
Diffstat (limited to 'converter/adb_usb')
-rw-r--r--converter/adb_usb/matrix.c69
1 files changed, 35 insertions, 34 deletions
diff --git a/converter/adb_usb/matrix.c b/converter/adb_usb/matrix.c
index 4d1b9e9aa5..18e71aa497 100644
--- a/converter/adb_usb/matrix.c
+++ b/converter/adb_usb/matrix.c
@@ -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;
}