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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 | ||
25 | enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID}; | |
26 | ||
27 | typedef 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 | ||
35 | extern bool dcr_map_ok_generic(dcr_host_t host); | |
36 | ||
37 | extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n, | |
38 | unsigned int dcr_c); | |
39 | extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c); | |
40 | ||
41 | extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n); | |
42 | ||
43 | extern 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 |