arch/m32r/kernel/io_mappi2.c

   1 /*
   2  *  linux/arch/m32r/kernel/io_mappi2.c
   3  *
   4  *  Typical I/O routines for Mappi2 board.
   5  *
   6  *  Copyright (c) 2001-2003  Hiroyuki Kondo, Hirokazu Takata,
   7  *                            Hitoshi Yamamoto, Mamoru Sakugawa
   8  */
   9
  10 /* $Id:$ */
  11
  12 #include <linux/config.h>
  13 #include <asm/m32r.h>
  14 #include <asm/page.h>
  15 #include <asm/io.h>
  16
  17 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
  18 #include <linux/types.h>
  19
  20 #define M32R_PCC_IOMAP_SIZE 0x1000
  21
  22 #define M32R_PCC_IOSTART0 0x1000
  23 #define M32R_PCC_IOEND0   (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
  24
  25 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
  26 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
  27 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
  28 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
  29 #endif /* CONFIG_PCMCIA && CONFIG_MAPPI2_CFC */
  30
  31 #define PORT2ADDR(port)      _port2addr(port)
  32 #define PORT2ADDR_NE(port)   _port2addr_ne(port)
  33 #define PORT2ADDR_USB(port)  _port2addr_usb(port)
  34
  35 static __inline__ void *_port2addr(unsigned long port)
  36 {
  37         return (void *)(port + NONCACHE_OFFSET);
  38 }
  39
  40 #define LAN_IOSTART     0x300
  41 #define LAN_IOEND       0x320
  42 #ifdef CONFIG_CHIP_OPSP
  43 static __inline__ void *_port2addr_ne(unsigned long port)
  44 {
  45         return (void *)(port + NONCACHE_OFFSET + 0x10000000);
  46 }
  47 #else
  48 static __inline__ void *_port2addr_ne(unsigned long port)
  49 {
  50         return (void *)(port + NONCACHE_OFFSET + 0x04000000);
  51 }
  52 #endif
  53 static __inline__ void *_port2addr_usb(unsigned long port)
  54 {
  55         return (void *)(port + NONCACHE_OFFSET + 0x14000000);
  56 }
  57 static __inline__ void delay(void)
  58 {
  59         __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
  60 }
  61
  62 /*
  63  * NIC I/O function
  64  */
  65
  66 static __inline__ unsigned char _ne_inb(void *portp)
  67 {
  68         return (unsigned char) *(volatile unsigned char *)portp;
  69 }
  70
  71 static __inline__ unsigned short _ne_inw(void *portp)
  72 {
  73 #if 1  /* byte swap */
  74         unsigned short tmp,tmp2;
  75         tmp = *(volatile unsigned short *)portp;
  76         tmp2 = (tmp>>8|tmp<<8);
  77         return tmp2;
  78 #else
  79         return *(volatile unsigned short *)portp;
  80 #endif
  81 }
  82
  83 static __inline__ void _ne_insb(void *portp, void * addr, unsigned long count)
  84 {
  85         unsigned short tmp;
  86         unsigned char *buf = addr;
  87
  88         tmp = *(volatile unsigned char *)portp;
  89         while (count--) *buf++ = *(volatile unsigned char *)portp;
  90 }
  91
  92 static __inline__ void _ne_outb(unsigned char b, void *portp)
  93 {
  94         *(volatile unsigned char *)portp = (unsigned char)b;
  95 }
  96
  97 static __inline__ void _ne_outw(unsigned short w, void *portp)
  98 {
  99         *(volatile unsigned short *)portp = (w>>8|w<<8);
 100 }
 101
 102 unsigned char _inb(unsigned long port)
 103 {
 104         if (port >= LAN_IOSTART && port < LAN_IOEND)
 105                 return _ne_inb(PORT2ADDR_NE(port));
 106 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 107         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 108            unsigned char b;
 109            pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 110            return b;
 111         } else
 112 #endif
 113
 114         return *(volatile unsigned char *)PORT2ADDR(port);
 115 }
 116
 117 unsigned short _inw(unsigned long port)
 118 {
 119         if (port >= LAN_IOSTART && port < LAN_IOEND)
 120                 return _ne_inw(PORT2ADDR_NE(port));
 121 #if defined(CONFIG_USB)
 122         else if (port >= 0x340 && port < 0x3a0)
 123           return *(volatile unsigned short *)PORT2ADDR_USB(port);
 124 #endif
 125
 126 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 127           else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 128            unsigned short w;
 129            pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 130            return w;
 131         } else
 132 #endif
 133         return *(volatile unsigned short *)PORT2ADDR(port);
 134 }
 135
 136 unsigned long _inl(unsigned long port)
 137 {
 138 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 139         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 140            unsigned long l;
 141            pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
 142            return l;
 143         } else
 144 #endif
 145         return *(volatile unsigned long *)PORT2ADDR(port);
 146 }
 147
 148 unsigned char _inb_p(unsigned long port)
 149 {
 150         unsigned char  v;
 151
 152         if (port >= 0x300 && port < 0x320)
 153                 v = _ne_inb(PORT2ADDR_NE(port));
 154         else
 155 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 156         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 157            unsigned char b;
 158            pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 159            return b;
 160         } else
 161 #endif
 162                 v = *(volatile unsigned char *)PORT2ADDR(port);
 163
 164         delay();
 165         return (v);
 166 }
 167
 168 unsigned short _inw_p(unsigned long port)
 169 {
 170         unsigned short  v;
 171
 172         if (port >= 0x300 && port < 0x320)
 173                 v = _ne_inw(PORT2ADDR_NE(port));
 174         else
 175 #if defined(CONFIG_USB)
 176           if (port >= 0x340 && port < 0x3a0)
 177                 v = *(volatile unsigned short *)PORT2ADDR_USB(port);
 178           else
 179 #endif
 180 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 181         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 182            unsigned short w;
 183            pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 184            return w;
 185         } else
 186 #endif
 187                 v = *(volatile unsigned short *)PORT2ADDR(port);
 188
 189         delay();
 190         return (v);
 191 }
 192
 193 unsigned long _inl_p(unsigned long port)
 194 {
 195         unsigned long  v;
 196
 197         v = *(volatile unsigned long *)PORT2ADDR(port);
 198         delay();
 199         return (v);
 200 }
 201
 202 void _outb(unsigned char b, unsigned long port)
 203 {
 204         if (port >= LAN_IOSTART && port < LAN_IOEND)
 205                 _ne_outb(b, PORT2ADDR_NE(port));
 206         else
 207 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 208         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 209            pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 210         } else
 211 #endif
 212                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 213 }
 214
 215 void _outw(unsigned short w, unsigned long port)
 216 {
 217         if (port >= LAN_IOSTART && port < LAN_IOEND)
 218                 _ne_outw(w, PORT2ADDR_NE(port));
 219         else
 220 #if defined(CONFIG_USB)
 221           if (port >= 0x340 && port < 0x3a0)
 222             *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 223         else
 224 #endif
 225 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 226         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 227            pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 228         } else
 229 #endif
 230                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 231 }
 232
 233 void _outl(unsigned long l, unsigned long port)
 234 {
 235 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 236         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 237            pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
 238         } else
 239 #endif
 240         *(volatile unsigned long *)PORT2ADDR(port) = l;
 241 }
 242
 243 void _outb_p(unsigned char b, unsigned long port)
 244 {
 245         if (port >= LAN_IOSTART && port < LAN_IOEND)
 246                 _ne_outb(b, PORT2ADDR_NE(port));
 247         else
 248 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 249         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 250            pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 251         } else
 252 #endif
 253                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 254
 255         delay();
 256 }
 257
 258 void _outw_p(unsigned short w, unsigned long port)
 259 {
 260         if (port >= LAN_IOSTART && port < LAN_IOEND)
 261                 _ne_outw(w, PORT2ADDR_NE(port));
 262         else
 263 #if defined(CONFIG_USB)
 264           if (port >= 0x340 && port < 0x3a0)
 265                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 266         else
 267 #endif
 268 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 269         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 270            pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 271         } else
 272 #endif
 273                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 274
 275         delay();
 276 }
 277
 278 void _outl_p(unsigned long l, unsigned long port)
 279 {
 280         *(volatile unsigned long *)PORT2ADDR(port) = l;
 281         delay();
 282 }
 283
 284 void _insb(unsigned int port, void * addr, unsigned long count)
 285 {
 286         if (port >= LAN_IOSTART && port < LAN_IOEND)
 287                 _ne_insb(PORT2ADDR_NE(port), addr, count);
 288 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 289           else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 290            pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char), count, 1);
 291         }
 292 #endif
 293         else {
 294                 unsigned char *buf = addr;
 295                 unsigned char *portp = PORT2ADDR(port);
 296                 while(count--) *buf++ = *(volatile unsigned char *)portp;
 297         }
 298 }
 299
 300 void _insw(unsigned int port, void * addr, unsigned long count)
 301 {
 302         unsigned short *buf = addr;
 303         unsigned short *portp;
 304
 305         if (port >= LAN_IOSTART && port < LAN_IOEND)
 306                 portp = PORT2ADDR_NE(port);
 307                 while (count--) *buf++ = *(volatile unsigned short *)portp;
 308 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 309         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 310            pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short), count, 1);
 311 #endif
 312         } else {
 313                 portp = PORT2ADDR(port);
 314                 while (count--) *buf++ = *(volatile unsigned short *)portp;
 315         }
 316 }
 317
 318 void _insl(unsigned int port, void * addr, unsigned long count)
 319 {
 320         unsigned long *buf = addr;
 321         unsigned long *portp;
 322
 323         portp = PORT2ADDR(port);
 324         while (count--) *buf++ = *(volatile unsigned long *)portp;
 325 }
 326
 327 void _outsb(unsigned int port, const void * addr, unsigned long count)
 328 {
 329         const unsigned char *buf = addr;
 330         unsigned char *portp;
 331
 332         if (port >= LAN_IOSTART && port < LAN_IOEND)
 333                 portp = PORT2ADDR_NE(port);
 334                 while (count--) _ne_outb(*buf++, portp);
 335 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 336         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 337            pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char), count, 1);
 338 #endif
 339         } else {
 340                 portp = PORT2ADDR(port);
 341                 while(count--) *(volatile unsigned char *)portp = *buf++;
 342         }
 343 }
 344
 345 void _outsw(unsigned int port, const void * addr, unsigned long count)
 346 {
 347         const unsigned short *buf = addr;
 348         unsigned short *portp;
 349
 350         if (port >= LAN_IOSTART && port < LAN_IOEND)
 351                 portp = PORT2ADDR_NE(port);
 352                 while (count--) *(volatile unsigned short *)portp = *buf++;
 353 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 354         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 355            pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short), count, 1);
 356 #endif
 357         } else {
 358                 portp = PORT2ADDR(port);
 359                 while(count--) *(volatile unsigned short *)portp = *buf++;
 360         }
 361 }
 362
 363 void _outsl(unsigned int port, const void * addr, unsigned long count)
 364 {
 365         const unsigned long *buf = addr;
 366         unsigned char *portp;
 367
 368         portp = PORT2ADDR(port);
 369         while(count--) *(volatile unsigned long *)portp = *buf++;
 370 }