diff options
Diffstat (limited to 'include/grub/mips/io.h')
-rw-r--r-- | include/grub/mips/io.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/grub/mips/io.h b/include/grub/mips/io.h new file mode 100644 index 0000000..dee76bd --- /dev/null +++ b/include/grub/mips/io.h @@ -0,0 +1,62 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_IO_H +#define GRUB_IO_H 1 + +#include <grub/types.h> + +typedef grub_addr_t grub_port_t; + +static __inline unsigned char +grub_inb (grub_port_t port) +{ + return *(volatile grub_uint8_t *) port; +} + +static __inline unsigned short int +grub_inw (grub_port_t port) +{ + return *(volatile grub_uint16_t *) port; +} + +static __inline unsigned int +grub_inl (grub_port_t port) +{ + return *(volatile grub_uint32_t *) port; +} + +static __inline void +grub_outb (unsigned char value, grub_port_t port) +{ + *(volatile grub_uint8_t *) port = value; +} + +static __inline void +grub_outw (unsigned short int value, grub_port_t port) +{ + *(volatile grub_uint16_t *) port = value; +} + +static __inline void +grub_outl (unsigned int value, grub_port_t port) +{ + *(volatile grub_uint32_t *) port = value; +} + +#endif /* _SYS_IO_H */ |