forked from mirrors/qmk_userspace
		
	To prevent key stuck clear matrix array when ADB error occurs.
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					 2 changed files with 40 additions and 34 deletions
				
			
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			@ -38,27 +38,22 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
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#   error "MATRIX_ROWS must not exceed 255"
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#endif
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#define CAPS        0x39
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#define CAPS_UP     (CAPS | 0x80)
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#define ROW(key)    ((key)>>3&0x0F)
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#define COL(key)    ((key)&0x07)
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#define ADB_CAPS_UP     (ADB_CAPS | 0x80)
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static bool _matrix_is_modified = false;
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static bool is_modified = false;
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// matrix state buffer(1:on, 0:off)
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#if (MATRIX_COLS <= 8)
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static uint8_t *matrix;
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static uint8_t _matrix0[MATRIX_ROWS];
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static uint8_t matrix[MATRIX_ROWS];
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#else
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static uint16_t *matrix;
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static uint16_t _matrix0[MATRIX_ROWS];
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static uint16_t matrix[MATRIX_ROWS];
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#endif
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#ifdef MATRIX_HAS_GHOST
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static bool matrix_has_ghost_in_row(uint8_t row);
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#endif
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static void _register_key(uint8_t key);
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static void register_key(uint8_t key);
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inline
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			@ -78,8 +73,7 @@ void matrix_init(void)
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    adb_host_init();
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    // initialize matrix state: all keys off
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    for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
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    matrix = _matrix0;
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    for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
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    print_enable = true;
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    debug_enable = true;
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			@ -95,48 +89,53 @@ uint8_t matrix_scan(void)
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    uint16_t codes;
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    uint8_t key0, key1;
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    _matrix_is_modified = false;
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    is_modified = false;
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    codes = adb_host_kbd_recv();
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    key0 = codes>>8;
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    key1 = codes&0xFF;
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    if (debug_enable && codes) {
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    if (debug_matrix && codes) {
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        print("adb_host_kbd_recv: "); phex16(codes); print("\n");
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    }
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#ifdef MATRIX_HAS_LOCKING_CAPS
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    // Send Caps key up event
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    if (matrix_is_on(ROW(CAPS), COL(CAPS))) {
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        _matrix_is_modified = true;
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        _register_key(CAPS_UP);
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    if (matrix_is_on(MATRIX_ROW(ADB_CAPS), MATRIX_COL(ADB_CAPS))) {
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        register_key(ADB_CAPS_UP);
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    }
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#endif
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    if (codes == 0) {                           // no keys
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        return 0;
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    } else if (key0 == 0xFF && key1 != 0xFF) {  // error
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        return codes&0xFF;
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    } else if (codes == 0x7F7F) {   // power key press
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        register_key(0x7F);
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    } else if (codes == 0xFFFF) {   // power key release
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        register_key(0xFF);
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    } else if (key0 == 0xFF) {      // error
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        if (debug_matrix) print("adb_host_kbd_recv: ERROR(matrix cleared.)\n");
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        // clear matrix to unregister all keys
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        for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
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        return key1;
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    } else {
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#ifdef MATRIX_HAS_LOCKING_CAPS    
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        if (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) {
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            // Ignore LockingCaps key down event when CAPS LOCK is on
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            if (key0 == CAPS && (key1 == CAPS || key1 == 0xFF)) return 0;
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            if (key0 == CAPS) key0 = key1;
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            if (key1 == CAPS) key1 = 0xFF;
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            if (key0 == ADB_CAPS && (key1 == ADB_CAPS || key1 == 0xFF)) return 0;
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            if (key0 == ADB_CAPS) key0 = key1;
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            if (key1 == ADB_CAPS) key1 = 0xFF;
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            // Convert LockingCaps key up event into down event
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            if (key0 == CAPS_UP) key0 = CAPS;
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            if (key1 == CAPS_UP) key1 = CAPS;
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            if (key0 == ADB_CAPS_UP) key0 = ADB_CAPS;
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            if (key1 == ADB_CAPS_UP) key1 = ADB_CAPS;
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        } else {
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            // CAPS LOCK off:
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            // Ignore LockingCaps key up event when CAPS LOCK is off
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            if (key0 == CAPS_UP && (key1 == CAPS_UP || key1 == 0xFF)) return 0;
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            if (key0 == CAPS_UP) key0 = key1;
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            if (key1 == CAPS_UP) key1 = 0xFF;
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            // ADB_CAPS LOCK off:
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            // Ignore LockingCaps key up event when ADB_CAPS LOCK is off
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            if (key0 == ADB_CAPS_UP && (key1 == ADB_CAPS_UP || key1 == 0xFF)) return 0;
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            if (key0 == ADB_CAPS_UP) key0 = key1;
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            if (key1 == ADB_CAPS_UP) key1 = 0xFF;
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        }
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#endif        
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        _matrix_is_modified = true;
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        _register_key(key0);
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        register_key(key0);
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        if (key1 != 0xFF)       // key1 is 0xFF when no second key.
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            _register_key(key1);
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            register_key(key1);
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    }
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    return 1;
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			@ -144,7 +143,7 @@ uint8_t matrix_scan(void)
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bool matrix_is_modified(void)
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{
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    return _matrix_is_modified;
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    return is_modified;
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}
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inline
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			@ -177,6 +176,7 @@ uint16_t matrix_get_row(uint8_t row)
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void matrix_print(void)
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{
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    if (!debug_matrix) return;
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#if (MATRIX_COLS <= 8)
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    print("r/c 01234567\n");
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#else
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			@ -229,7 +229,7 @@ static bool matrix_has_ghost_in_row(uint8_t row)
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#endif
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inline
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static void _register_key(uint8_t key)
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static void register_key(uint8_t key)
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{
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    uint8_t col, row;
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    col = key&0x07;
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			@ -239,4 +239,5 @@ static void _register_key(uint8_t key)
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    } else {
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        matrix[row] |=  (1<<col);
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    }
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    is_modified = true;
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}
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			@ -38,6 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
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#ifndef ADB_H
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#define ADB_H
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#include <stdint.h>
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#include <stdbool.h>
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#if !(defined(ADB_PORT) && \
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			@ -47,6 +48,10 @@ POSSIBILITY OF SUCH DAMAGE.
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#   error "ADB port setting is required in config.h"
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#endif
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#define ADB_POWER       0x7F
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#define ADB_CAPS        0x39
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// ADB host
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void     adb_host_init(void);
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bool     adb_host_psw(void);
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