Implement GPIO abstraction for atsam (#13567)

* Implement GPIO abstraction for atsam

* Convert Drop boards to normal matrix config

* Work round pin conflicts and matrix delay

1 files changed, 21 insertions, 0 deletions

diff --git a/keyboards/massdrop/alt/alt.c b/keyboards/massdrop/alt/alt.c
new file mode 100644
index 0000000000..81dd66b3c1
--- /dev/null
+++ b/keyboards/massdrop/alt/alt.c
@@ -0,0 +1,21 @@
+/*
+Copyright 2021 Massdrop Inc.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "alt.h"
+
+/* Temporary solution for matrix delay */
+void matrix_output_select_delay(void) { matrix_io_delay(); }
+void matrix_output_unselect_delay(void) { }