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Diffstat (limited to 'include/asm-v850/io.h')
| -rw-r--r-- | include/asm-v850/io.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/include/asm-v850/io.h b/include/asm-v850/io.h new file mode 100644 index 00000000000..bb5efd1b4b7 --- /dev/null +++ b/include/asm-v850/io.h @@ -0,0 +1,133 @@ +/* + * include/asm-v850/io.h -- Misc I/O operations + * + * Copyright (C) 2001,02,03,04 NEC Electronics Corporation + * Copyright (C) 2001,02,03,04 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef __V850_IO_H__ +#define __V850_IO_H__ + +#define IO_SPACE_LIMIT 0xFFFFFFFF + +#define readb(addr) \ + ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) +#define readw(addr) \ + ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) +#define readl(addr) \ + ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; }) + +#define readb_relaxed(a) readb(a) +#define readw_relaxed(a) readw(a) +#define readl_relaxed(a) readl(a) + +#define writeb(b, addr) \ + (void)((*(volatile unsigned char *) (addr)) = (b)) +#define writew(b, addr) \ + (void)((*(volatile unsigned short *) (addr)) = (b)) +#define writel(b, addr) \ + (void)((*(volatile unsigned int *) (addr)) = (b)) + +#define __raw_readb readb +#define __raw_readw readw +#define __raw_readl readl +#define __raw_writeb writeb +#define __raw_writew writew +#define __raw_writel writel + +#define inb(addr) readb (addr) +#define inw(addr) readw (addr) +#define inl(addr) readl (addr) +#define outb(x, addr) ((void) writeb (x, addr)) +#define outw(x, addr) ((void) writew (x, addr)) +#define outl(x, addr) ((void) writel (x, addr)) + +#define inb_p(port) inb((port)) +#define outb_p(val, port) outb((val), (port)) +#define inw_p(port) inw((port)) +#define outw_p(val, port) outw((val), (port)) +#define inl_p(port) inl((port)) +#define outl_p(val, port) outl((val), (port)) + +static inline void insb (unsigned long port, void *dst, unsigned long count) +{ + unsigned char *p = dst; + while (count--) + *p++ = inb (port); +} +static inline void insw (unsigned long port, void *dst, unsigned long count) +{ + unsigned short *p = dst; + while (count--) + *p++ = inw (port); +} +static inline void insl (unsigned long port, void *dst, unsigned long count) +{ + unsigned long *p = dst; + while (count--) + *p++ = inl (port); +} + +static inline void +outsb (unsigned long port, const void *src, unsigned long count) +{ + const unsigned char *p = src; + while (count--) + outb (*p++, port); +} +static inline void +outsw (unsigned long port, const void *src, unsigned long count) +{ + const unsigned short *p = src; + while (count--) + outw (*p++, port); +} +static inline void +outsl (unsigned long port, const void *src, unsigned long count) +{ + const unsigned long *p = src; + while (count--) + outl (*p++, port); +} + +#define iounmap(addr) ((void)0) +#define ioremap(physaddr, size) (physaddr) +#define ioremap_nocache(physaddr, size) (physaddr) +#define ioremap_writethrough(physaddr, size) (physaddr) +#define ioremap_fullcache(physaddr, size) (physaddr) + +#define mmiowb() + +#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) +#if 0 +/* This is really stupid; don't define it. */ +#define page_to_bus(page) page_to_phys (page) +#endif + +/* Conversion between virtual and physical mappings. */ +#define mm_ptov(addr) ((void *)__phys_to_virt (addr)) +#define mm_vtop(addr) ((unsigned long)__virt_to_phys (addr)) +#define phys_to_virt(addr) ((void *)__phys_to_virt (addr)) +#define virt_to_phys(addr) ((unsigned long)__virt_to_phys (addr)) + +#define memcpy_fromio(dst, src, len) memcpy (dst, (void *)src, len) +#define memcpy_toio(dst, src, len) memcpy ((void *)dst, src, len) + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#endif /* __V850_IO_H__ */ |