diff options
Diffstat (limited to 'kernel/arch/powerpc/include/asm/dcr-generic.h')
| -rw-r--r-- | kernel/arch/powerpc/include/asm/dcr-generic.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/dcr-generic.h b/kernel/arch/powerpc/include/asm/dcr-generic.h new file mode 100644 index 000000000..35b71599e --- /dev/null +++ b/kernel/arch/powerpc/include/asm/dcr-generic.h @@ -0,0 +1,49 @@ +/* + * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. + * <benh@kernel.crashing.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _ASM_POWERPC_DCR_GENERIC_H +#define _ASM_POWERPC_DCR_GENERIC_H +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + +enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID}; + +typedef struct { + enum host_type_t type; + union { + dcr_host_mmio_t mmio; + dcr_host_native_t native; + } host; +} dcr_host_t; + +extern bool dcr_map_ok_generic(dcr_host_t host); + +extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n, + unsigned int dcr_c); +extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c); + +extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n); + +extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value); + +#endif /* __ASSEMBLY__ */ +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_DCR_GENERIC_H */ + + |