2 * arch/ubicom32/include/asm/devtree.h
3 * Device Tree Header File (Shared between ultra and the Host OS)
5 * (C) Copyright 2009, Ubicom, Inc.
7 * This file is part of the Ubicom32 Linux Kernel Port.
9 * The Ubicom32 Linux Kernel Port is free software: you can redistribute
10 * it and/or modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation, either version 2 of the
12 * License, or (at your option) any later version.
14 * The Ubicom32 Linux Kernel Port is distributed in the hope that it
15 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
16 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
17 * the GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with the Ubicom32 Linux Kernel Port. If not,
21 * see <http://www.gnu.org/licenses/>.
23 * Ubicom32 implementation derived from (with many thanks):
29 #ifndef _ASM_UBICOM32_DEVTREE_H
30 #define _ASM_UBICOM32_DEVTREE_H
32 #define DEVTREE_MAX_NAME 32
33 #define DEVTREE_IRQ_NONE 0xff
34 #define DEVTREE_IRQ_DONTCARE 0xff
35 #define DEVTREE_NODE_MAGIC 0x10203040
38 struct devtree_node
*next
;
39 unsigned char sendirq
;
40 unsigned char recvirq
;
41 char name
[DEVTREE_MAX_NAME
];
45 extern struct devtree_node
*devtree
;
46 extern struct devtree_node
*devtree_find_by_irq(uint8_t sendirq
, uint8_t recvirq
);
47 extern struct devtree_node
*devtree_find_node(const char *str
);
48 extern struct devtree_node
*devtree_find_next(struct devtree_node
**cur
);
49 extern int devtree_irq(struct devtree_node
*dn
, unsigned char *sendirq
, unsigned char *recvirq
);
50 extern void devtree_print(void);
52 #endif /* _ASM_UBICOM32_DEVTREE_H */