Loading...
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 | /* * linux/include/asm-m68k/raw_io.h * * 10/20/00 RZ: - created from bits of io.h and ide.h to cleanup namespace * */ #ifndef _RAW_IO_H #define _RAW_IO_H #ifdef __KERNEL__ /* ++roman: The assignments to temp. vars avoid that gcc sometimes generates * two accesses to memory, which may be undesirable for some devices. */ #define in_8(addr) \ ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) #define in_be16(addr) \ ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) #define in_be32(addr) \ ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; }) #define in_le16(addr) \ ({ unsigned short __v = le16_to_cpu(*(volatile unsigned short *) (addr)); __v; }) #define in_le32(addr) \ ({ unsigned int __v = le32_to_cpu(*(volatile unsigned int *) (addr)); __v; }) #define out_8(addr,b) (void)((*(volatile unsigned char *) (addr)) = (b)) #define out_be16(addr,w) (void)((*(volatile unsigned short *) (addr)) = (w)) #define out_be32(addr,l) (void)((*(volatile unsigned int *) (addr)) = (l)) #define out_le16(addr,w) (void)((*(volatile unsigned short *) (addr)) = cpu_to_le16(w)) #define out_le32(addr,l) (void)((*(volatile unsigned int *) (addr)) = cpu_to_le32(l)) #define raw_inb in_8 #define raw_inw in_be16 #define raw_inl in_be32 #define raw_outb(val,port) out_8((port),(val)) #define raw_outw(val,port) out_be16((port),(val)) #define raw_outl(val,port) out_be32((port),(val)) #define raw_insb(port, buf, len) ({ \ volatile unsigned char *_port = (volatile unsigned char *) (port); \ unsigned char *_buf =(unsigned char *)(buf); \ unsigned int _i,_len=(unsigned int)(len); \ for(_i=0; _i< _len; _i++) \ *_buf++=in_8(_port); \ }) #define raw_outsb(port, buf, len) ({ \ volatile unsigned char *_port = (volatile unsigned char *) (port); \ unsigned char *_buf =(unsigned char *)(buf); \ unsigned int _i,_len=(unsigned int)(len); \ for( _i=0; _i< _len; _i++) \ out_8(_port,*_buf++); \ }) #define raw_insw(port, buf, nr) ({ \ volatile unsigned char *_port = (volatile unsigned char *) (port); \ unsigned char *_buf = (unsigned char *)(buf); \ unsigned int _nr = (unsigned int)(nr); \ unsigned long _tmp; \ \ if (_nr & 15) { \ _tmp = (_nr & 15) - 1; \ asm volatile ( \ "1: movew %2@,%0@+; dbra %1,1b" \ : "=a" (_buf), "=d" (_tmp) \ : "a" (_port), "0" (_buf), \ "1" (_tmp)); \ } \ if (_nr >> 4) { \ _tmp = (_nr >> 4) - 1; \ asm volatile ( \ "1: " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "movew %2@,%0@+; " \ "dbra %1,1b" \ : "=a" (_buf), "=d" (_tmp) \ : "a" (_port), "0" (_buf), \ "1" (_tmp)); \ } \ }) #define raw_outsw(port, buf, nr) ({ \ volatile unsigned char *_port = (volatile unsigned char *) (port); \ unsigned char *_buf = (unsigned char *)(buf); \ unsigned int _nr = (unsigned int)(nr); \ unsigned long _tmp; \ \ if (_nr & 15) { \ _tmp = (_nr & 15) - 1; \ asm volatile ( \ "1: movew %0@+,%2@; dbra %1,1b" \ : "=a" (_buf), "=d" (_tmp) \ : "a" (_port), "0" (_buf), \ "1" (_tmp)); \ } \ if (_nr >> 4) { \ _tmp = (_nr >> 4) - 1; \ asm volatile ( \ "1: " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "movew %0@+,%2@; " \ "dbra %1,1b" \ : "=a" (_buf), "=d" (_tmp) \ : "a" (_port), "0" (_buf), \ "1" (_tmp)); \ } \ }) #define raw_insw_swapw(port, buf, nr) \ ({ if ((nr) % 8) \ __asm__ __volatile__ \ ("movel %0,%/a0; \ movel %1,%/a1; \ movel %2,%/d6; \ subql #1,%/d6; \ 1:movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ dbra %/d6,1b" \ : \ : "g" (port), "g" (buf), "g" (nr) \ : "d0", "a0", "a1", "d6"); \ else \ __asm__ __volatile__ \ ("movel %0,%/a0; \ movel %1,%/a1; \ movel %2,%/d6; \ lsrl #3,%/d6; \ subql #1,%/d6; \ 1:movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ movew %/a0@,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a1@+; \ dbra %/d6,1b" \ : \ : "g" (port), "g" (buf), "g" (nr) \ : "d0", "a0", "a1", "d6"); \ }) #define raw_outsw_swapw(port, buf, nr) \ ({ if ((nr) % 8) \ __asm__ __volatile__ \ ("movel %0,%/a0; \ movel %1,%/a1; \ movel %2,%/d6; \ subql #1,%/d6; \ 1:movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ dbra %/d6,1b" \ : \ : "g" (port), "g" (buf), "g" (nr) \ : "d0", "a0", "a1", "d6"); \ else \ __asm__ __volatile__ \ ("movel %0,%/a0; \ movel %1,%/a1; \ movel %2,%/d6; \ lsrl #3,%/d6; \ subql #1,%/d6; \ 1:movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ movew %/a1@+,%/d0; \ rolw #8,%/d0; \ movew %/d0,%/a0@; \ dbra %/d6,1b" \ : \ : "g" (port), "g" (buf), "g" (nr) \ : "d0", "a0", "a1", "d6"); \ }) #endif /* __KERNEL__ */ #endif /* _RAW_IO_H */ |