Add support for the i.MX53 QSB2.6.35.3-mx53-early-201103141049

This patch seems to have originated from the 11.01.00 release
from Freescale, which is no longer available except through the
gitweb interface from Freescale.

http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=commit;h=27fdf7bae11978d21e8aba09bb635f49b07edd4a

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/i2c-slave/i2c_slave_device.h b/drivers/i2c-slave/i2c_slave_device.h
new file mode 100644
index 000000000000..472782cd230d
--- /dev/null
+++ b/drivers/i2c-slave/i2c_slave_device.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2007-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __I2C_SLAVE_H__
+#define __I2C_SLAVE_H__
+
+#include <linux/list.h>
+#include "i2c_slave_ring_buffer.h"
+
+#define I2C_SLAVE_DEVICE_MAX 256
+extern int i2c_slave_major;
+
+typedef struct i2c_slave_device {
+	struct list_head list;
+	u8 address;
+	u32 scl_freq;
+	char *name;
+	i2c_slave_ring_buffer_t *receive_buffer;
+	i2c_slave_ring_buffer_t *send_buffer;
+	int (*start) (struct i2c_slave_device *);
+	int (*stop) (struct i2c_slave_device *);
+	/*int (*set_freq)(struct i2c_slave_device*);
+	int (*set_addr)(struct i2c_slave_device*);*/
+	void *private_data;
+	struct device *dev;
+	int id;
+} i2c_slave_device_t;
+
+/*
+	used by the specific device to set some infomations.
+*/
+void i2c_slave_device_set_name(i2c_slave_device_t *device, char *name);
+void i2c_slave_device_set_address(i2c_slave_device_t *device, u8 address);
+i2c_slave_device_t *i2c_slave_device_find(int id);
+u8 i2c_slave_device_get_addr(i2c_slave_device_t *device);
+int i2c_slave_device_set_freq(i2c_slave_device_t *device, u32 freq);
+u32 i2c_slave_device_get_freq(i2c_slave_device_t *device);
+
+/*
+**used by the specific i2c device to register itself to the core.
+*/
+i2c_slave_device_t *i2c_slave_device_alloc(void);
+void i2c_slave_device_free(i2c_slave_device_t *);
+int i2c_slave_device_register(i2c_slave_device_t *device);
+void i2c_slave_device_unregister(i2c_slave_device_t *device);
+
+/*
+	this two functions are used by i2c slave core to start or stop the specific i2c device.
+*/
+int i2c_slave_device_start(i2c_slave_device_t *device);
+int i2c_slave_device_stop(i2c_slave_device_t *device);
+
+/*
+	this two functions are used by i2c slave core to get data by the specific i2c slave device
+	or send data to it for it to feed i2c master's need.
+
+	@mod: async(1) or sync(0) mode.
+*/
+int i2c_slave_device_read(i2c_slave_device_t *device, int num, u8 *data);
+int i2c_slave_device_write(i2c_slave_device_t *device, int num, u8 *data);
+
+/*
+*this 2 functions used by the specific i2c slave device when they got data from master,
+*or is requested by master.
+*/
+int i2c_slave_device_produce(i2c_slave_device_t *device, int num, u8 *data);
+int i2c_slave_device_consume(i2c_slave_device_t *device, int num, u8 *data);
+
+#endif