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/*
* gb.h
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* Generic bitmap manager.
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef GB_
#define GB_
#define GB_NOBITS (~0)
#include <dspbridge/host_os.h>
struct gb_t_map;
/*
* ======== gb_clear ========
* Clear the bit in position bitn in the bitmap map. Bit positions are
* zero based.
*/
extern void gb_clear(struct gb_t_map *map, u32 bitn);
/*
* ======== gb_create ========
* Create a bit map with len bits. Initially all bits are cleared.
*/
extern struct gb_t_map *gb_create(u32 len);
/*
* ======== gb_delete ========
* Delete previously created bit map
*/
extern void gb_delete(struct gb_t_map *map);
/*
* ======== gb_findandset ========
* Finds a clear bit, sets it, and returns the position
*/
extern u32 gb_findandset(struct gb_t_map *map);
/*
* ======== gb_minclear ========
* gb_minclear returns the minimum clear bit position. If no bit is
* clear, gb_minclear returns -1.
*/
extern u32 gb_minclear(struct gb_t_map *map);
/*
* ======== gb_set ========
* Set the bit in position bitn in the bitmap map. Bit positions are
* zero based.
*/
extern void gb_set(struct gb_t_map *map, u32 bitn);
/*
* ======== gb_test ========
* Returns TRUE if the bit in position bitn is set in map; otherwise
* gb_test returns FALSE. Bit positions are zero based.
*/
extern bool gb_test(struct gb_t_map *map, u32 bitn);
#endif /*GB_ */
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