| /* |
| * 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_ */ |
