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/****************************************************************************
* Copyright (C) 2003-2006 by XGI Technology, Taiwan.
*
* All Rights Reserved.
*
* 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 on 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 (including the
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* XGI AND/OR ITS SUPPLIERS 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.
***************************************************************************/
#ifndef _XGI_CMDLIST_H_
#define _XGI_CMDLIST_H_
struct xgi_cmdring_info {
/**
* Kernel space pointer to the base of the command ring.
*/
u32 * ptr;
/**
* Size, in bytes, of the command ring.
*/
unsigned int size;
/**
* Base address of the command ring from the hardware's PoV.
*/
unsigned int ring_hw_base;
u32 * last_ptr;
/**
* Offset, in bytes, from the start of the ring to the next available
* location to store a command.
*/
unsigned int ring_offset;
};
struct xgi_info;
extern int xgi_cmdlist_initialize(struct xgi_info * info, size_t size,
struct drm_file * filp);
extern int xgi_state_change(struct xgi_info * info, unsigned int to,
unsigned int from);
extern void xgi_cmdlist_cleanup(struct xgi_info * info);
extern void xgi_emit_irq(struct xgi_info * info);
#endif /* _XGI_CMDLIST_H_ */
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