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authorGareth McMullin2015-02-28 22:09:50 -0800
committerGareth McMullin2015-02-28 22:09:50 -0800
commit5eff0ab5d648408cf4df528d2be3d29b04034083 (patch)
tree695a54fb12639cad87eb9282d544fde39ccfbcf6 /src/platforms/stm32/gpio.h
parent48fb7ec6625000c2d93456de0649dc0b67b7d6c0 (diff)
Factor out common GPIO code in STM32 platforms.
Diffstat (limited to 'src/platforms/stm32/gpio.h')
-rw-r--r--src/platforms/stm32/gpio.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/platforms/stm32/gpio.h b/src/platforms/stm32/gpio.h
new file mode 100644
index 0000000..035f3c9
--- /dev/null
+++ b/src/platforms/stm32/gpio.h
@@ -0,0 +1,61 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2015 Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * 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 __GPIO_H
+#define __GPIO_H
+
+#define INLINE_GPIO
+
+#define gpio_set_val(port, pin, val) do { \
+ if(val) \
+ gpio_set((port), (pin)); \
+ else \
+ gpio_clear((port), (pin)); \
+} while(0)
+
+#ifdef INLINE_GPIO
+static inline void _gpio_set(uint32_t gpioport, uint16_t gpios)
+{
+ GPIO_BSRR(gpioport) = gpios;
+#ifdef F4DISCOVERY
+ GPIO_BSRR(gpioport) = gpios;
+#endif
+}
+#define gpio_set _gpio_set
+
+static inline void _gpio_clear(uint32_t gpioport, uint16_t gpios)
+{
+#ifndef F4DISCOVERY
+ GPIO_BRR(gpioport) = gpios;
+#else
+ GPIO_BSRR(gpioport) = gpios<<16;
+ GPIO_BSRR(gpioport) = gpios<<16;
+#endif
+}
+#define gpio_clear _gpio_clear
+
+static inline uint16_t _gpio_get(uint32_t gpioport, uint16_t gpios)
+{
+ return (uint16_t)GPIO_IDR(gpioport) & gpios;
+}
+#define gpio_get _gpio_get
+#endif
+
+#endif
+