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linux/drivers/char/xilinx_hwicap/fifo_icap.h
Stephen Neuendorffer 6b06fdbaf9 [POWERPC] Xilinx: hwicap: Refactor status handling code.
Both the buffer-based and fifo-based icap cores have a status
register.  Previously, this was only used internally to check whether
transactions have completed.  However, the status can be useful to the
main driver as well.  This patch exposes these status functions to the
main driver along with some masks for the differnet bits.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-03-26 07:27:11 -05:00

64 lines
2.5 KiB
C

/*****************************************************************************
*
* Author: Xilinx, Inc.
*
* 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; either version 2 of the License, or (at your
* option) any later version.
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* SOLUTIONS FOR XILINX DEVICES. BY PROVIDING THIS DESIGN, CODE,
* OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
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* Xilinx products are not intended for use in life support appliances,
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* (c) Copyright 2007-2008 Xilinx Inc.
* All rights reserved.
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*
*****************************************************************************/
#ifndef XILINX_FIFO_ICAP_H_ /* prevent circular inclusions */
#define XILINX_FIFO_ICAP_H_ /* by using protection macros */
#include <linux/types.h>
#include <linux/cdev.h>
#include <linux/version.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include "xilinx_hwicap.h"
/* Reads integers from the device into the storage buffer. */
int fifo_icap_get_configuration(
struct hwicap_drvdata *drvdata,
u32 *FrameBuffer,
u32 NumWords);
/* Writes integers to the device from the storage buffer. */
int fifo_icap_set_configuration(
struct hwicap_drvdata *drvdata,
u32 *FrameBuffer,
u32 NumWords);
u32 fifo_icap_get_status(struct hwicap_drvdata *drvdata);
void fifo_icap_reset(struct hwicap_drvdata *drvdata);
void fifo_icap_flush_fifo(struct hwicap_drvdata *drvdata);
#endif