Refactor platform logic within print.h (#11863)

* Remove GCC check from debug

* Remove platform logic from common.mk

* Refactor platform logic within print.h

* restore debug.c format

* headers

* Rename function pointer type

* review comments

* Update tmk_core/common/printf.c

Co-authored-by: Nick Brassel <nick@tzarc.org>

* Format

Co-authored-by: Nick Brassel <nick@tzarc.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/tmk_core/common/printf.c b/tmk_core/common/printf.c
new file mode 100644
index 000000000..e8440e55e
--- /dev/null
+++ b/tmk_core/common/printf.c
@@ -0,0 +1,27 @@
+/*
+Copyright 2011 Jun Wako <wakojun@gmail.com>
+
+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 <stddef.h>
+#include "sendchar.h"
+
+// bind lib/printf to console interface - sendchar
+
+static int8_t          null_sendchar_func(uint8_t c) { return 0; }
+static sendchar_func_t func = null_sendchar_func;
+
+void print_set_sendchar(sendchar_func_t send) { func = send; }
+
+void _putchar(char character) { func(character); }