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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | /* * 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__ */ |