arch/m32r/kernel/io_mappi3.c

   1 /*
   2  *  linux/arch/m32r/kernel/io_mappi3.c
   3  *
   4  *  Typical I/O routines for Mappi3 board.
   5  *
   6  *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
   7  *                           Hitoshi Yamamoto, Mamoru Sakugawa
   8  */
   9
  10 #include <linux/config.h>
  11 #include <asm/m32r.h>
  12 #include <asm/page.h>
  13 #include <asm/io.h>
  14 #include <asm/byteorder.h>
  15
  16 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
  17 #include <linux/types.h>
  18
  19 #define M32R_PCC_IOMAP_SIZE 0x1000
  20
  21 #define M32R_PCC_IOSTART0 0x1000
  22 #define M32R_PCC_IOEND0   (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
  23
  24 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
  25 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
  26 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
  27 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
  28 #endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
  29
  30 #define PORT2ADDR(port)      _port2addr(port)
  31 #define PORT2ADDR_NE(port)   _port2addr_ne(port)
  32 #define PORT2ADDR_USB(port)  _port2addr_usb(port)
  33
  34 static inline void *_port2addr(unsigned long port)
  35 {
  36         return (void *)(port + NONCACHE_OFFSET);
  37 }
  38
  39 #if defined(CONFIG_IDE)
  40 static inline void *__port2addr_ata(unsigned long port)
  41 {
  42         static int      dummy_reg;
  43
  44         switch (port) {
  45           /* IDE0 CF */
  46         case 0x1f0:     return (void *)0xb4002000;
  47         case 0x1f1:     return (void *)0xb4012800;
  48         case 0x1f2:     return (void *)0xb4012002;
  49         case 0x1f3:     return (void *)0xb4012802;
  50         case 0x1f4:     return (void *)0xb4012004;
  51         case 0x1f5:     return (void *)0xb4012804;
  52         case 0x1f6:     return (void *)0xb4012006;
  53         case 0x1f7:     return (void *)0xb4012806;
  54         case 0x3f6:     return (void *)0xb401200e;
  55           /* IDE1 IDE */
  56         case 0x170:     return (void *)0xb4810000;  /* Data 16bit */
  57         case 0x171:     return (void *)0xb4810002;  /* Features / Error */
  58         case 0x172:     return (void *)0xb4810004;  /* Sector count */
  59         case 0x173:     return (void *)0xb4810006;  /* Sector number */
  60         case 0x174:     return (void *)0xb4810008;  /* Cylinder low */
  61         case 0x175:     return (void *)0xb481000a;  /* Cylinder high */
  62         case 0x176:     return (void *)0xb481000c;  /* Device head */
  63         case 0x177:     return (void *)0xb481000e;  /* Command     */
  64         case 0x376:     return (void *)0xb480800c;  /* Device control / Alt status */
  65
  66         default:        return (void *)&dummy_reg;
  67         }
  68 }
  69 #endif
  70
  71 #define LAN_IOSTART     0xa0000300
  72 #define LAN_IOEND       0xa0000320
  73 static inline void *_port2addr_ne(unsigned long port)
  74 {
  75         return (void *)(port + 0x10000000);
  76 }
  77
  78 static inline void *_port2addr_usb(unsigned long port)
  79 {
  80         return (void *)(port + NONCACHE_OFFSET + 0x12000000);
  81 }
  82 static inline void delay(void)
  83 {
  84         __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
  85 }
  86
  87 /*
  88  * NIC I/O function
  89  */
  90
  91 static inline unsigned char _ne_inb(void *portp)
  92 {
  93         return (unsigned char) *(volatile unsigned char *)portp;
  94 }
  95
  96 static inline unsigned short _ne_inw(void *portp)
  97 {
  98         return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
  99 }
 100
 101 static inline void _ne_insb(void *portp, void * addr, unsigned long count)
 102 {
 103         unsigned char *buf = addr;
 104
 105         while (count--)
 106                 *buf++ = *(volatile unsigned char *)portp;
 107 }
 108
 109 static inline void _ne_outb(unsigned char b, void *portp)
 110 {
 111         *(volatile unsigned char *)portp = (unsigned char)b;
 112 }
 113
 114 static inline void _ne_outw(unsigned short w, void *portp)
 115 {
 116         *(volatile unsigned short *)portp = cpu_to_le16(w);
 117 }
 118
 119 unsigned char _inb(unsigned long port)
 120 {
 121         if (port >= LAN_IOSTART && port < LAN_IOEND)
 122                 return _ne_inb(PORT2ADDR_NE(port));
 123 #if defined(CONFIG_IDE)
 124         else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 125                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 126                 return *(volatile unsigned char *)__port2addr_ata(port);
 127         }
 128 #endif
 129 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 130         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 131                 unsigned char b;
 132                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 133                 return b;
 134         } else
 135 #endif
 136         return *(volatile unsigned char *)PORT2ADDR(port);
 137 }
 138
 139 unsigned short _inw(unsigned long port)
 140 {
 141         if (port >= LAN_IOSTART && port < LAN_IOEND)
 142                 return _ne_inw(PORT2ADDR_NE(port));
 143 #if defined(CONFIG_IDE)
 144         else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 145                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 146                 return *(volatile unsigned short *)__port2addr_ata(port);
 147         }
 148 #endif
 149 #if defined(CONFIG_USB)
 150         else if (port >= 0x340 && port < 0x3a0)
 151                 return *(volatile unsigned short *)PORT2ADDR_USB(port);
 152 #endif
 153
 154 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 155         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 156                 unsigned short w;
 157                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 158                 return w;
 159         } else
 160 #endif
 161         return *(volatile unsigned short *)PORT2ADDR(port);
 162 }
 163
 164 unsigned long _inl(unsigned long port)
 165 {
 166 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 167         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 168                 unsigned long l;
 169                 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
 170                 return l;
 171         } else
 172 #endif
 173         return *(volatile unsigned long *)PORT2ADDR(port);
 174 }
 175
 176 unsigned char _inb_p(unsigned long port)
 177 {
 178         unsigned char v = _inb(port);
 179         delay();
 180         return (v);
 181 }
 182
 183 unsigned short _inw_p(unsigned long port)
 184 {
 185         unsigned short v = _inw(port);
 186         delay();
 187         return (v);
 188 }
 189
 190 unsigned long _inl_p(unsigned long port)
 191 {
 192         unsigned long v = _inl(port);
 193         delay();
 194         return (v);
 195 }
 196
 197 void _outb(unsigned char b, unsigned long port)
 198 {
 199         if (port >= LAN_IOSTART && port < LAN_IOEND)
 200                 _ne_outb(b, PORT2ADDR_NE(port));
 201         else
 202 #if defined(CONFIG_IDE)
 203         if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 204                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 205                 *(volatile unsigned char *)__port2addr_ata(port) = b;
 206         } else
 207 #endif
 208 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 209         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 210                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 211         } else
 212 #endif
 213                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 214 }
 215
 216 void _outw(unsigned short w, unsigned long port)
 217 {
 218         if (port >= LAN_IOSTART && port < LAN_IOEND)
 219                 _ne_outw(w, PORT2ADDR_NE(port));
 220         else
 221 #if defined(CONFIG_IDE)
 222         if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 223                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 224                 *(volatile unsigned short *)__port2addr_ata(port) = w;
 225         } else
 226 #endif
 227 #if defined(CONFIG_USB)
 228         if (port >= 0x340 && port < 0x3a0)
 229                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 230         else
 231 #endif
 232 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 233         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 234                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 235         } else
 236 #endif
 237                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 238 }
 239
 240 void _outl(unsigned long l, unsigned long port)
 241 {
 242 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 243         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 244                 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
 245         } else
 246 #endif
 247         *(volatile unsigned long *)PORT2ADDR(port) = l;
 248 }
 249
 250 void _outb_p(unsigned char b, unsigned long port)
 251 {
 252         _outb(b, port);
 253         delay();
 254 }
 255
 256 void _outw_p(unsigned short w, unsigned long port)
 257 {
 258         _outw(w, port);
 259         delay();
 260 }
 261
 262 void _outl_p(unsigned long l, unsigned long port)
 263 {
 264         _outl(l, port);
 265         delay();
 266 }
 267
 268 void _insb(unsigned int port, void * addr, unsigned long count)
 269 {
 270         if (port >= LAN_IOSTART && port < LAN_IOEND)
 271                 _ne_insb(PORT2ADDR_NE(port), addr, count);
 272 #if defined(CONFIG_IDE)
 273         else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 274                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 275                 unsigned char *buf = addr;
 276                 unsigned char *portp = __port2addr_ata(port);
 277                 while (count--)
 278                         *buf++ = *(volatile unsigned char *)portp;
 279         }
 280 #endif
 281 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 282         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 283                 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
 284                                 count, 1);
 285         }
 286 #endif
 287         else {
 288                 unsigned char *buf = addr;
 289                 unsigned char *portp = PORT2ADDR(port);
 290                 while (count--)
 291                         *buf++ = *(volatile unsigned char *)portp;
 292         }
 293 }
 294
 295 void _insw(unsigned int port, void * addr, unsigned long count)
 296 {
 297         unsigned short *buf = addr;
 298         unsigned short *portp;
 299
 300         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 301                 portp = PORT2ADDR_NE(port);
 302                 while (count--)
 303                         *buf++ = *(volatile unsigned short *)portp;
 304 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 305         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 306                 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
 307                                 count, 1);
 308 #endif
 309 #if defined(CONFIG_IDE)
 310         } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 311                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 312                 portp = __port2addr_ata(port);
 313                 while (count--)
 314                         *buf++ = *(volatile unsigned short *)portp;
 315 #endif
 316         } else {
 317                 portp = PORT2ADDR(port);
 318                 while (count--)
 319                         *buf++ = *(volatile unsigned short *)portp;
 320         }
 321 }
 322
 323 void _insl(unsigned int port, void * addr, unsigned long count)
 324 {
 325         unsigned long *buf = addr;
 326         unsigned long *portp;
 327
 328         portp = PORT2ADDR(port);
 329         while (count--)
 330                 *buf++ = *(volatile unsigned long *)portp;
 331 }
 332
 333 void _outsb(unsigned int port, const void * addr, unsigned long count)
 334 {
 335         const unsigned char *buf = addr;
 336         unsigned char *portp;
 337
 338         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 339                 portp = PORT2ADDR_NE(port);
 340                 while (count--)
 341                         _ne_outb(*buf++, portp);
 342 #if defined(CONFIG_IDE)
 343         } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 344                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 345                 portp = __port2addr_ata(port);
 346                 while (count--)
 347                         *(volatile unsigned char *)portp = *buf++;
 348 #endif
 349 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 350         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 351                 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
 352                                  count, 1);
 353 #endif
 354         } else {
 355                 portp = PORT2ADDR(port);
 356                 while (count--)
 357                         *(volatile unsigned char *)portp = *buf++;
 358         }
 359 }
 360
 361 void _outsw(unsigned int port, const void * addr, unsigned long count)
 362 {
 363         const unsigned short *buf = addr;
 364         unsigned short *portp;
 365
 366         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 367                 portp = PORT2ADDR_NE(port);
 368                 while (count--)
 369                         *(volatile unsigned short *)portp = *buf++;
 370 #if defined(CONFIG_IDE)
 371         } else if ( ((port >= 0x170 && port <=0x177) || port == 0x376) ||
 372                   ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) ){
 373                 portp = __port2addr_ata(port);
 374                 while (count--)
 375                         *(volatile unsigned short *)portp = *buf++;
 376 #endif
 377 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 378         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 379                 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
 380                                  count, 1);
 381 #endif
 382         } else {
 383                 portp = PORT2ADDR(port);
 384                 while (count--)
 385                         *(volatile unsigned short *)portp = *buf++;
 386         }
 387 }
 388
 389 void _outsl(unsigned int port, const void * addr, unsigned long count)
 390 {
 391         const unsigned long *buf = addr;
 392         unsigned char *portp;
 393
 394         portp = PORT2ADDR(port);
 395         while (count--)
 396                 *(volatile unsigned long *)portp = *buf++;
 397 }