参考代码

components/system/include/drivers/chip/i2c.h

@@ -0,0 +1,38 @@
+#ifndef __I2C_H__
+#define __I2C_H__
+
+#include "drivers/chip/_hal.h"
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef void (*i2c_isr_cb_fn)(void);
+
+void drv_i2c_pin_configure_sck(hal_id_t id, uint8_t pin);
+void drv_i2c_pin_configure_sda(hal_id_t id, uint8_t pin);
+
+void drv_i2c_enable(hal_id_t id);
+void drv_i2c_disable(hal_id_t id);
+
+void drv_i2c_init(hal_id_t id, uint32_t freq);
+void drv_i2c_deinit(hal_id_t id);
+
+int drv_i2c_write(hal_id_t id, char dev_addr, const void *src, unsigned count);
+int drv_i2c_read(hal_id_t id, void *dest, char dev_addr, unsigned count);
+
+int drv_i2c_irq_callback_enable(hal_id_t id, i2c_isr_cb_fn cb);
+int drv_i2c_irq_callback_disable(hal_id_t id);
+
+void drv_i2c_irq_enable(hal_id_t id, int priority);
+void drv_i2c_irq_disable(hal_id_t id);
+
+bool drv_i2c_is_busy(hal_id_t id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif