/* * include/asm-v850/io.h -- Misc I/O operations * * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation * Copyright (C) 2001,02,03,04,05 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(val, addr) \ (void)((*(volatile unsigned char *) (addr)) = (val)) #define writew(val, addr) \ (void)((*(volatile unsigned short *) (addr)) = (val)) #define writel(val, addr) \ (void)((*(volatile unsigned int *) (addr)) = (val)) #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); } /* Some places try to pass in an loff_t for PHYSADDR (?!), so we cast it to long before casting it to a pointer to avoid compiler warnings. */ #define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr)) #define iounmap(addr) ((void)0) #define ioremap_nocache(physaddr, size) ioremap (physaddr, size) #define ioremap_writethrough(physaddr, size) ioremap (physaddr, size) #define ioremap_fullcache(physaddr, size) ioremap (physaddr, size) #define ioread8(addr) readb (addr) #define ioread16(addr) readw (addr) #define ioread32(addr) readl (addr) #define iowrite8(val, addr) writeb (val, addr) #define iowrite16(val, addr) writew (val, addr) #define iowrite32(val, addr) writel (val, addr) #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__ */