arch/ia64/lib/io.c

   1 #include <linux/config.h>
   2 #include <linux/module.h>
   3 #include <linux/types.h>
   4
   5 #include <asm/io.h>
   6
   7 /*
   8  * Copy data from IO memory space to "real" memory space.
   9  * This needs to be optimized.
  10  */
  11 void
  12 __ia64_memcpy_fromio (void *to, unsigned long from, long count)
  13 {
  14         char *dst = to;
  15
  16         while (count) {
  17                 count--;
  18                 *dst++ = readb(from++);
  19         }
  20 }
  21 EXPORT_SYMBOL(__ia64_memcpy_fromio);
  22
  23 /*
  24  * Copy data from "real" memory space to IO memory space.
  25  * This needs to be optimized.
  26  */
  27 void
  28 __ia64_memcpy_toio (unsigned long to, void *from, long count)
  29 {
  30         char *src = from;
  31
  32         while (count) {
  33                 count--;
  34                 writeb(*src++, to++);
  35         }
  36 }
  37 EXPORT_SYMBOL(__ia64_memcpy_toio);
  38
  39 /*
  40  * "memset" on IO memory space.
  41  * This needs to be optimized.
  42  */
  43 void
  44 __ia64_memset_c_io (unsigned long dst, unsigned long c, long count)
  45 {
  46         unsigned char ch = (char)(c & 0xff);
  47
  48         while (count) {
  49                 count--;
  50                 writeb(ch, dst);
  51                 dst++;
  52         }
  53 }
  54 EXPORT_SYMBOL(__ia64_memset_c_io);
  55
  56 #ifdef CONFIG_IA64_GENERIC
  57
  58 #undef __ia64_inb
  59 #undef __ia64_inw
  60 #undef __ia64_inl
  61 #undef __ia64_outb
  62 #undef __ia64_outw
  63 #undef __ia64_outl
  64 #undef __ia64_readb
  65 #undef __ia64_readw
  66 #undef __ia64_readl
  67 #undef __ia64_readq
  68 #undef __ia64_readb_relaxed
  69 #undef __ia64_readw_relaxed
  70 #undef __ia64_readl_relaxed
  71 #undef __ia64_readq_relaxed
  72 #undef __ia64_writeb
  73 #undef __ia64_writew
  74 #undef __ia64_writel
  75 #undef __ia64_writeq
  76
  77 unsigned int
  78 __ia64_inb (unsigned long port)
  79 {
  80         return ___ia64_inb(port);
  81 }
  82
  83 unsigned int
  84 __ia64_inw (unsigned long port)
  85 {
  86         return ___ia64_inw(port);
  87 }
  88
  89 unsigned int
  90 __ia64_inl (unsigned long port)
  91 {
  92         return ___ia64_inl(port);
  93 }
  94
  95 void
  96 __ia64_outb (unsigned char val, unsigned long port)
  97 {
  98         ___ia64_outb(val, port);
  99 }
 100
 101 void
 102 __ia64_outw (unsigned short val, unsigned long port)
 103 {
 104         ___ia64_outw(val, port);
 105 }
 106
 107 void
 108 __ia64_outl (unsigned int val, unsigned long port)
 109 {
 110         ___ia64_outl(val, port);
 111 }
 112
 113 unsigned char
 114 __ia64_readb (void *addr)
 115 {
 116         return ___ia64_readb (addr);
 117 }
 118
 119 unsigned short
 120 __ia64_readw (void *addr)
 121 {
 122         return ___ia64_readw (addr);
 123 }
 124
 125 unsigned int
 126 __ia64_readl (void *addr)
 127 {
 128         return ___ia64_readl (addr);
 129 }
 130
 131 unsigned long
 132 __ia64_readq (void *addr)
 133 {
 134         return ___ia64_readq (addr);
 135 }
 136
 137 unsigned char
 138 __ia64_readb_relaxed (void *addr)
 139 {
 140         return ___ia64_readb (addr);
 141 }
 142
 143 unsigned short
 144 __ia64_readw_relaxed (void *addr)
 145 {
 146         return ___ia64_readw (addr);
 147 }
 148
 149 unsigned int
 150 __ia64_readl_relaxed (void *addr)
 151 {
 152         return ___ia64_readl (addr);
 153 }
 154
 155 unsigned long
 156 __ia64_readq_relaxed (void *addr)
 157 {
 158         return ___ia64_readq (addr);
 159 }
 160
 161 #endif /* CONFIG_IA64_GENERIC */