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-rw-r--r--libmaple/stm32f1/include/series/i2c.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/libmaple/stm32f1/include/series/i2c.h b/libmaple/stm32f1/include/series/i2c.h
index 315a7e3..a0822e8 100644
--- a/libmaple/stm32f1/include/series/i2c.h
+++ b/libmaple/stm32f1/include/series/i2c.h
@@ -34,6 +34,7 @@
#define _LIBMAPLE_STM32F1_I2C_H_
#include <libmaple/i2c_common.h>
+#include <libmaple/gpio.h>
#include <libmaple/stm32.h>
/*
@@ -66,4 +67,19 @@ static inline uint32 _i2c_bus_clk(i2c_dev *dev) {
#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_ */