X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=converter%2Fibm4704_usb%2Fmatrix.c;h=8b9b518dbcd88fc3acd066f75f62e135a163abaf;hb=124bafe9f3f2fce9d99478bff059e6252fad95de;hp=155df9c38f26f5fa2d9a610e4773436c75dd1fdc;hpb=81137b7a61ef11df023e1f542840a80bfc1ca090;p=max%2Ftmk_keyboard.git

diff --git a/converter/ibm4704_usb/matrix.c b/converter/ibm4704_usb/matrix.c
index 155df9c3..8b9b518d 100644
--- a/converter/ibm4704_usb/matrix.c
+++ b/converter/ibm4704_usb/matrix.c
@@ -29,7 +29,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 static void matrix_make(uint8_t code);
 static void matrix_break(uint8_t code);
-static void matrix_clear(void);
 
 
 /*
@@ -68,8 +67,9 @@ uint8_t matrix_cols(void)
 static void enable_break(void)
 {
     print("Enable break: ");
+    while (ibm4704_send(0xFC)) { _delay_ms(10); }
     // valid scancode: 00-79h
-    for (uint8_t code = 0; code < 0x7A; code++) {
+    for (uint8_t code = 0; code < 0x7F; code++) {
         while (ibm4704_send(0x80|code)) _delay_ms(10);
         _delay_ms(5);   // wait for response
         // No response(FF) when ok, FD when out of bound
@@ -105,8 +105,8 @@ uint8_t matrix_scan(void)
     if (code==0xFF) {
         // Not receivd
         return 0;
-    } else if ((code&0x7F) >= 0x7A) {
-        // 0xFF-FA and 0x7F-7A is not scancode
+    } else if ((code&0x7F) >= 0x7C) {
+        // 0xFF-FC and 0x7F-7C is not scancode
         xprintf("Error: %02X\n", code);
         matrix_clear();
         return 0;
@@ -154,8 +154,7 @@ static void matrix_break(uint8_t code)
     matrix[ROW(code)] &= ~(1<<COL(code));
 }
 
-inline
-static void matrix_clear(void)
+void matrix_clear(void)
 {
     for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
 }