1 files changed, 57 insertions, 0 deletions
diff --git a/vlib/vlib/i2c.h b/vlib/vlib/i2c.h
new file mode 100644
index 00000000000..451957d8513
--- /dev/null
+++ b/vlib/vlib/i2c.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef included_vlib_i2c_h
+#define included_vlib_i2c_h
+
+#include <vppinfra/types.h>
+
+
+#define I2C_MSG_FLAG_WRITE  0
+#define I2C_MSG_FLAG_READ   1
+
+typedef struct {
+    u8 addr;
+    u8 flags;
+    u16 len;
+    u8 * buffer;
+} i2c_msg_t;
+
+typedef struct i2c_bus_t {
+  void (* put_bits) (struct i2c_bus_t * b, int  scl, int  sda);
+  void (* get_bits) (struct i2c_bus_t * b, int *scl, int *sda);
+
+  int timeout;
+  u32 clock;
+  f64 hold_time;
+  f64 rise_fall_time;
+
+  /* Private data */
+  uword private_data;
+
+} i2c_bus_t;
+
+void vlib_i2c_init (i2c_bus_t * bus);
+void vlib_i2c_xfer (i2c_bus_t * bus, i2c_msg_t * msgs);
+void vlib_i2c_read_eeprom (i2c_bus_t * bus, u8 i2c_addr, u16 start_addr, u16 length, u8 * data);
+
+static inline int
+vlib_i2c_bus_timed_out(i2c_bus_t * bus)
+{
+  return bus->timeout;
+}
+
+#endif /* included_vlib_i2c_h */
+