Michał Żygowski has uploaded this change for review.

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[RFC] src/device/smbus: add extended addressing functions

Found this on one of private repositories I have access to.
Do not have any use case for it yet.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I5dcfc6bf33ef7baaa619f84b2ce0ab8e179a44b3
---
M src/device/smbus_ops.c
M src/include/device/smbus.h
M src/include/device/smbus_def.h
3 files changed, 64 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/30757/1

diff --git a/src/device/smbus_ops.c b/src/device/smbus_ops.c
index c91f415..26cd956 100644
--- a/src/device/smbus_ops.c
+++ b/src/device/smbus_ops.c
@@ -90,3 +90,20 @@
 	return ops_smbus_bus(get_pbus_smbus(dev))->block_write(dev, cmd,
 							       bytes, buffer);
 }
+
+int smbus_extended_read_byte(struct device *dev, u16 addr)
+{
+	CHECK_PRESENCE(extended_read_byte);
+
+	return ops_smbus_bus(get_pbus_smbus(dev))->extended_read_byte(dev,
+								      addr);
+}
+
+int smbus_extended_write_byte(struct device *dev, u16 addr, u8 val)
+{
+	CHECK_PRESENCE(extended_write_byte);
+
+	return ops_smbus_bus(get_pbus_smbus(dev))->extended_write_byte(dev,
+								       addr,
+								       val);
+}
\ No newline at end of file
diff --git a/src/include/device/smbus.h b/src/include/device/smbus.h
index de6cf40..cb3f826 100644
--- a/src/include/device/smbus.h
+++ b/src/include/device/smbus.h
@@ -1,3 +1,22 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Sage Electronic Engineering, LLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
 #ifndef DEVICE_SMBUS_H
 #define DEVICE_SMBUS_H
 
@@ -15,6 +34,8 @@
 	int (*block_read)(struct device *dev, u8 cmd, u8 bytes, u8 *buffer);
 	int (*block_write)(struct device *dev, u8 cmd, u8 bytes,
 			   const u8 *buffer);
+	int (*extended_read_byte)(struct device *dev, u16 addr);
+	int (*extended_write_byte)(struct device *dev, u16 addr, u8 value);
 };
 
 static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus)
@@ -54,6 +75,10 @@
 int smbus_block_read(struct device *dev, u8 cmd, u8 bytes, u8 *buffer);
 int smbus_block_write(struct device *dev, u8 cmd, u8 bytes, const u8 *buffer);
 
+int smbus_extended_read_byte(struct device *dev, u16 addr);
+int smbus_extended_write_byte(struct device *dev, u16 addr, u8 val);
+
+
 #if IS_ENABLED(CONFIG_SMBUS_HAS_AUX_CHANNELS)
 void smbus_switch_to_channel(uint8_t channel_number);
 uint8_t smbus_get_current_channel(void);
diff --git a/src/include/device/smbus_def.h b/src/include/device/smbus_def.h
index 61d7861..cac08cc 100644
--- a/src/include/device/smbus_def.h
+++ b/src/include/device/smbus_def.h
@@ -1,10 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Sage Electronic Engineering, LLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+
 #ifndef DEVICE_SMBUS_DEF_H
 #define DEVICE_SMBUS_DEF_H
 
 #include <types.h>
 
 /* Error results are negative success is >= 0 */
-#define SMBUS_ERROR			CB_ERR
+#define SMBUS_SUCCESS					CB_SUCCESS
+#define SMBUS_ERROR						CB_ERR
 #define SMBUS_WAIT_UNTIL_READY_TIMEOUT	CB_I2C_BUSY
 #define SMBUS_WAIT_UNTIL_DONE_TIMEOUT	CB_I2C_TIMEOUT
 #define SMBUS_WAIT_UNTIL_ACTIVE_TIMEOUT	CB_I2C_NO_DEVICE

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