1 files changed, 85 insertions, 0 deletions
diff --git a/libmaple/stm32f1/include/series/i2c.h b/libmaple/stm32f1/include/series/i2c.h
new file mode 100644
index 0000000..a0822e8
--- /dev/null
+++ b/libmaple/stm32f1/include/series/i2c.h
@@ -0,0 +1,85 @@
+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2010 Perry Hung (from <libmaple/i2c.h>).
+ * Copyright (c) 2012 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *****************************************************************************/
+
+/**
+ * @file libmaple/include/stm32f1/include/series/i2c.h
+ * @brief STM32F1 I2C
+ */
+
+#ifndef _LIBMAPLE_STM32F1_I2C_H_
+#define _LIBMAPLE_STM32F1_I2C_H_
+
+#include <libmaple/i2c_common.h>
+#include <libmaple/gpio.h>
+#include <libmaple/stm32.h>
+
+/*
+ * Register maps
+ */
+
+struct i2c_reg_map;
+
+/** STM32F1 I2C1 register map base pointer */
+#define I2C1_BASE               ((struct i2c_reg_map*)0x40005400)
+/** STM32F1 I2C2 register map base pointer */
+#define I2C2_BASE               ((struct i2c_reg_map*)0x40005800)
+
+/*
+ * Devices
+ */
+
+extern i2c_dev* const I2C1;
+extern i2c_dev* const I2C2;
+
+/*
+ * For internal use
+ */
+
+static inline uint32 _i2c_bus_clk(i2c_dev *dev) {
+    /* Both I2C peripherals are on APB1 */
+    return STM32_PCLK1 / (1000 * 1000);
+}
+
+#define _I2C_HAVE_IRQ_FIXUP 1
+void _i2c_irq_priority_fixup(i2c_dev *dev);
+
+/*
+ * Deprecated functionality
+ */
+
+/* Flag to use alternate pin mapping in i2c_master_enable(). */
+#define _I2C_HAVE_DEPRECATED_I2C_REMAP 1
+#define I2C_REMAP 0x4
+static inline void _i2c_handle_remap(i2c_dev *dev, uint32 flags) {
+    if ((dev == I2C1) && (flags & I2C_REMAP)) {
+        afio_remap(AFIO_REMAP_I2C1);
+        I2C1->sda_pin = 9;
+        I2C1->scl_pin = 8;
+    }
+}
+
+#endif  /* _LIBMAPLE_STM32F1_I2C_H_ */