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be0524d38f
This is i.MX BSP 5.0.0 release ported to 2.6.31 Signed-off-by: Rob Herring <r.herring@freescale.com> Signed-off-by: Alan Tull <r80115@freescale.com> Signed-off-by: Xinyu Chen <xinyu.chen@freescale.com>
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
#ifndef __BUFFER_MANAGER_H__
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#define __BUFFER_MANAGER_H__
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/*
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* Copyright 2007-2008 Freescale Semiconductor, Inc. All Rights Reserved.
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*/
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/*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/types.h>
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#include <linux/spinlock.h>
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typedef struct i2c_slave_ring_buffer {
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int start;
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int end;
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int total;
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bool full;
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char *buffer;
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spinlock_t lock;
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} i2c_slave_ring_buffer_t;
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i2c_slave_ring_buffer_t *i2c_slave_rb_alloc(int size);
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void i2c_slave_rb_release(i2c_slave_ring_buffer_t *ring);
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int i2c_slave_rb_produce(i2c_slave_ring_buffer_t *ring, int num, char *data);
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int i2c_slave_rb_consume(i2c_slave_ring_buffer_t *ring, int num, char *data);
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int i2c_slave_rb_num(i2c_slave_ring_buffer_t *ring);
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void i2c_slave_rb_clear(i2c_slave_ring_buffer_t *ring);
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#endif
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