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/arch/powerpc/include/asm/dcr-generic.h

https://github.com/aicjofs/android_kernel_lge_v500_20d_f2fs
C Header | 49 lines | 21 code | 10 blank | 18 comment | 0 complexity | 3d13c5d01142903edcd4de6ea42df929 MD5 | raw file
 1/*
 2 * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
 3 *                    <benh@kernel.crashing.org>
 4 *
 5 *   This program is free software;  you can redistribute it and/or modify
 6 *   it under the terms of the GNU General Public License as published by
 7 *   the Free Software Foundation; either version 2 of the License, or
 8 *   (at your option) any later version.
 9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#ifndef _ASM_POWERPC_DCR_GENERIC_H
21#define _ASM_POWERPC_DCR_GENERIC_H
22#ifdef __KERNEL__
23#ifndef __ASSEMBLY__
24
25enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID};
26
27typedef struct {
28	enum host_type_t type;
29	union {
30		dcr_host_mmio_t mmio;
31		dcr_host_native_t native;
32	} host;
33} dcr_host_t;
34
35extern bool dcr_map_ok_generic(dcr_host_t host);
36
37extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n,
38			  unsigned int dcr_c);
39extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c);
40
41extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n);
42
43extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value);
44
45#endif /* __ASSEMBLY__ */
46#endif /* __KERNEL__ */
47#endif /* _ASM_POWERPC_DCR_GENERIC_H */
48
49