Add GPIO macros

include/stm-periph/stm32-gpio-macros.h

@@ -0,0 +1,44 @@
+/* Reflow Oven Controller
+ *
+ * Copyright (C) 2020  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of the Reflow Oven Controller Project.
+ *
+ * The reflow oven controller is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * GDSII-Converter 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 the reflow oven controller project.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __STM32GPIOMACROS_H__
+#define __STM32GPIOMACROS_H__
+
+#define MODER_DELETE(pin) ~(0x3U << ((pin) * 2))
+#define PUPDR_DELETE(pin) ~(0x3U << ((pin) * 2))
+#define OUTPUT(pin)  (0x01U << ((pin) * 2))
+#define PULLUP(pin) (0x1U << ((pin)* 2))
+#define PULLDOWN(pin) (0x2U << ((pin)* 2))
+#define ALTFUNC(pin) ((0x2) << ((pin) * 2))
+#define PINMASK(pin) ((0x3) << ((pin) * 2))
+#define SETAF(PORT,PIN,AF)  PORT->AFR[((PIN) < 8 ? 0 : 1)] |= (AF) << (((PIN) < 8 ? (PIN) : ((PIN) - 8)) * 4)
+#define ANALOG(pin)  (0x03 << ((pin) * 2))
+#define OTYP_OPENDRAIN(pin) (0x1U << (pin))
+
+#define BITMASK_TO_BITNO(x) (x&0x1?0:x&0x2?1:x&0x4?2:x&0x8?3: \
+		 x&0x10?4:x&0x20?5:x&0x40?6:x&0x80?7: \
+		 x&0x100?8:x&0x200?9:x&0x400?10:x&0x800?11: \
+		 x&0x1000?12:x&0x2000?13:x&0x4000?14:x&0x8000?15: \
+		 x&0x10000?16:x&0x20000?17:x&0x40000?18:x&0x80000?19: \
+		 x&0x100000?20:x&0x200000?21:x&0x400000?22:x&0x800000?23: \
+		 x&0x1000000?24:x&0x2000000?25:x&0x4000000?26:x&0x8000000?27: \
+		 x&0x10000000?28:x&0x20000000?29:x&0x40000000?30:x&0x80000000?31:32)
+
+#endif /* __STM32GPIOMACROS_H__ */