diff options
Diffstat (limited to 'arch/sh/kernel/io.c')
-rw-r--r-- | arch/sh/kernel/io.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c new file mode 100644 index 000000000..27f250f9f --- /dev/null +++ b/arch/sh/kernel/io.c @@ -0,0 +1,202 @@ +/* + * linux/arch/sh/kernel/io_generic.c + * + * Copyright (C) 2000 Stuart Menefy + * + * Provide real functions which expand to whatever the header file defined. + * Also definitions of machine independant IO functions. + */ + +#include <linux/config.h> +#include <asm/io.h> + +unsigned int _inb(unsigned long port) +{ + return __inb(port); +} + +unsigned int _inw(unsigned long port) +{ + return __inw(port); +} + +unsigned int _inl(unsigned long port) +{ + return __inl(port); +} + +void _outb(unsigned char b, unsigned long port) +{ + __outb(b, port); +} + +void _outw(unsigned short b, unsigned long port) +{ + __outw(b, port); +} + +void _outl(unsigned int b, unsigned long port) +{ + __outl(b, port); +} + +unsigned int _inb_p(unsigned long port) +{ + return __inb_p(port); +} + +unsigned int _inw_p(unsigned long port) +{ + return __inw_p(port); +} + +void _outb_p(unsigned char b, unsigned long port) +{ + __outb_p(b, port); +} + +void _outw_p(unsigned short b, unsigned long port) +{ + __outw_p(b, port); +} + +void _insb(unsigned long port, void *buffer, unsigned long count) +{ + return __insb(port, buffer, count); +} + +void _insw(unsigned long port, void *buffer, unsigned long count) +{ + __insw(port, buffer, count); +} + +void _insl(unsigned long port, void *buffer, unsigned long count) +{ + __insl(port, buffer, count); +} + +void _outsb(unsigned long port, const void *buffer, unsigned long count) +{ + __outsb(port, buffer, count); +} + +void _outsw(unsigned long port, const void *buffer, unsigned long count) +{ + __outsw(port, buffer, count); +} + +void _outsl(unsigned long port, const void *buffer, unsigned long count) +{ + __outsl(port, buffer, count); + +} + +unsigned long ___raw_readb(unsigned long addr) +{ + return __readb(addr); +} + +unsigned long ___raw_readw(unsigned long addr) +{ + return __readw(addr); +} + +unsigned long ___raw_readl(unsigned long addr) +{ + return __readl(addr); +} + +unsigned long _readb(unsigned long addr) +{ + unsigned long r = __readb(addr); + mb(); + return r; +} + +unsigned long _readw(unsigned long addr) +{ + unsigned long r = __readw(addr); + mb(); + return r; +} + +unsigned long _readl(unsigned long addr) +{ + unsigned long r = __readl(addr); + mb(); + return r; +} + +void ___raw_writeb(unsigned char b, unsigned long addr) +{ + __writeb(b, addr); +} + +void ___raw_writew(unsigned short b, unsigned long addr) +{ + __writew(b, addr); +} + +void ___raw_writel(unsigned int b, unsigned long addr) +{ + __writel(b, addr); +} + +void _writeb(unsigned char b, unsigned long addr) +{ + __writeb(b, addr); + mb(); +} + +void _writew(unsigned short b, unsigned long addr) +{ + __writew(b, addr); + mb(); +} + +void _writel(unsigned int b, unsigned long addr) +{ + __writel(b, addr); + mb(); +} + +/* + * Copy data from IO memory space to "real" memory space. + * This needs to be optimized. + */ +void memcpy_fromio(void * to, unsigned long from, unsigned long count) +{ + while (count) { + count--; + *(char *) to = readb(from); + ((char *) to)++; + from++; + } +} + +/* + * Copy data from "real" memory space to IO memory space. + * This needs to be optimized. + */ +void memcpy_toio(unsigned long to, const void * from, unsigned long count) +{ + while (count) { + count--; + writeb(*(char *) from, to); + ((char *) from)++; + to++; + } +} + +/* + * "memset" on IO memory space. + * This needs to be optimized. + */ +void memset_io(unsigned long dst, int c, unsigned long count) +{ + while (count) { + count--; + writeb(c, dst); + dst++; + } +} |