1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c.h b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c.h
new file mode 100644
index 000000000000..d655f89578ca
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DCE_I2C_H__
+#define __DCE_I2C_H__
+
+#include "inc/core_types.h"
+#include "dce_i2c_hw.h"
+#include "dce_i2c_sw.h"
+
+enum dce_i2c_transaction_status {
+	DCE_I2C_TRANSACTION_STATUS_UNKNOWN = (-1L),
+	DCE_I2C_TRANSACTION_STATUS_SUCCEEDED,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_TIMEOUT,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_NACK,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_INCOMPLETE,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_OPERATION,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_INVALID_OPERATION,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_BUFFER_OVERFLOW,
+	DCE_I2C_TRANSACTION_STATUS_FAILED_HPD_DISCON
+};
+
+enum dce_i2c_transaction_operation {
+	DCE_I2C_TRANSACTION_READ,
+	DCE_I2C_TRANSACTION_WRITE
+};
+
+struct dce_i2c_transaction_payload {
+	enum dce_i2c_transaction_address_space address_space;
+	uint32_t address;
+	uint32_t length;
+	uint8_t *data;
+};
+
+struct dce_i2c_transaction_request {
+	enum dce_i2c_transaction_operation operation;
+	struct dce_i2c_transaction_payload payload;
+	enum dce_i2c_transaction_status status;
+};
+
+
+bool dce_i2c_submit_command(
+	struct resource_pool *pool,
+	struct ddc *ddc,
+	struct i2c_command *cmd);
+
+#endif