License and header guard cleanup

Fix some of the license headers being GPL2 when the project should be
GPL3. Next needs a LICENSE file.

Also fix header guards to a more robust <PROJECT>_<PATH> format.

1 files changed, 21 insertions, 3 deletions

diff --git a/lib/cm4.h b/lib/cm4.h
index 27c02da..000d249 100644
--- a/lib/cm4.h
+++ b/lib/cm4.h
@@ -1,5 +1,23 @@
-#ifndef LIB_CM4_H
-#define LIB_CM4_H
+/*
+ * lib/cm4.h -- Cortex M4 register definitions
+ *
+ * Copyright (C) 2017 Tomasz Kramkowski <tk@the-tk.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 3 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/>.
+ */
+#ifndef FMK_LIB_CM4_H
+#define FMK_LIB_CM4_H
 
 #define CLRPEND(n) REG_32(0xE000E280 + 4 * (n))
 #define ISR_CLRPEND(i) CLRPEND((i) / 32) = BV((i) % 32);
@@ -9,4 +27,4 @@
 
 #define INTPRI(n) REG_8(0xE000E400 + (n))
 
-#endif /* LIB_CM4_H */
+#endif /* FMK_LIB_CM4_H */