arch/m32r/kernel/io_opsput.c

   1 /*
   2  *  linux/arch/m32r/kernel/io_mappi.c
   3  *
   4  *  Typical I/O routines for OPSPUT board.
   5  *
   6  *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
   7  *                            Hitoshi Yamamoto, Takeo Takahashi
   8  *
   9  *  This file is subject to the terms and conditions of the GNU General
  10  *  Public License.  See the file "COPYING" in the main directory of this
  11  *  archive for more details.
  12  */
  13
  14 #include <linux/config.h>
  15 #include <asm/m32r.h>
  16 #include <asm/page.h>
  17 #include <asm/io.h>
  18 #include <asm/byteorder.h>
  19
  20 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
  21 #include <linux/types.h>
  22
  23 #define M32R_PCC_IOMAP_SIZE 0x1000
  24
  25 #define M32R_PCC_IOSTART0 0x1000
  26 #define M32R_PCC_IOEND0   (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
  27
  28 extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
  29 extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
  30 extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
  31 extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
  32 #endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
  33
  34 #define PORT2ADDR(port)  _port2addr(port)
  35 #define PORT2ADDR_USB(port) _port2addr_usb(port)
  36
  37 static inline void *_port2addr(unsigned long port)
  38 {
  39         return (void *)(port + NONCACHE_OFFSET);
  40 }
  41
  42 /*
  43  * OPSPUT-LAN is located in the extended bus space
  44  * from 0x10000000 to 0x13ffffff on physical address.
  45  * The base address of LAN controller(LAN91C111) is 0x300.
  46  */
  47 #define LAN_IOSTART     0x300
  48 #define LAN_IOEND       0x320
  49 static inline void *_port2addr_ne(unsigned long port)
  50 {
  51         return (void *)(port + NONCACHE_OFFSET + 0x10000000);
  52 }
  53 static inline void *_port2addr_usb(unsigned long port)
  54 {
  55         return (void *)((port & 0x0f) + NONCACHE_OFFSET + 0x10303000);
  56 }
  57
  58 static inline void delay(void)
  59 {
  60         __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
  61 }
  62
  63 /*
  64  * NIC I/O function
  65  */
  66
  67 #define PORT2ADDR_NE(port)  _port2addr_ne(port)
  68
  69 static inline unsigned char _ne_inb(void *portp)
  70 {
  71         return *(volatile unsigned char *)portp;
  72 }
  73
  74 static inline unsigned short _ne_inw(void *portp)
  75 {
  76         return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
  77 }
  78
  79 static inline void _ne_insb(void *portp, void *addr, unsigned long count)
  80 {
  81         unsigned char *buf = (unsigned char *)addr;
  82
  83         while (count--)
  84                 *buf++ = _ne_inb(portp);
  85 }
  86
  87 static inline void _ne_outb(unsigned char b, void *portp)
  88 {
  89         *(volatile unsigned char *)portp = b;
  90 }
  91
  92 static inline void _ne_outw(unsigned short w, void *portp)
  93 {
  94         *(volatile unsigned short *)portp = cpu_to_le16(w);
  95 }
  96
  97 unsigned char _inb(unsigned long port)
  98 {
  99         if (port >= LAN_IOSTART && port < LAN_IOEND)
 100                 return _ne_inb(PORT2ADDR_NE(port));
 101
 102 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 103         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 104                 unsigned char b;
 105                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 106                 return b;
 107         } else
 108 #endif
 109
 110         return *(volatile unsigned char *)PORT2ADDR(port);
 111 }
 112
 113 unsigned short _inw(unsigned long port)
 114 {
 115         if (port >= LAN_IOSTART && port < LAN_IOEND)
 116                 return _ne_inw(PORT2ADDR_NE(port));
 117 #if defined(CONFIG_USB)
 118         else if(port >= 0x340 && port < 0x3a0)
 119                 return *(volatile unsigned short *)PORT2ADDR_USB(port);
 120 #endif
 121
 122 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 123         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 124                 unsigned short w;
 125                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 126                 return w;
 127         } else
 128 #endif
 129         return *(volatile unsigned short *)PORT2ADDR(port);
 130 }
 131
 132 unsigned long _inl(unsigned long port)
 133 {
 134 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 135         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 136                 unsigned long l;
 137                 pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
 138                 return l;
 139         } else
 140 #endif
 141         return *(volatile unsigned long *)PORT2ADDR(port);
 142 }
 143
 144 unsigned char _inb_p(unsigned long port)
 145 {
 146         unsigned char  v;
 147
 148         if (port >= LAN_IOSTART && port < LAN_IOEND)
 149                 v = _ne_inb(PORT2ADDR_NE(port));
 150         else
 151 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 152         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 153                 unsigned char b;
 154                 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
 155                 return b;
 156         } else
 157 #endif
 158                 v = *(volatile unsigned char *)PORT2ADDR(port);
 159
 160         delay();
 161         return (v);
 162 }
 163
 164 unsigned short _inw_p(unsigned long port)
 165 {
 166         unsigned short  v;
 167
 168         if (port >= LAN_IOSTART && port < LAN_IOEND)
 169                 v = _ne_inw(PORT2ADDR_NE(port));
 170         else
 171 #if defined(CONFIG_USB)
 172         if(port >= 0x340 && port < 0x3a0)
 173                 return *(volatile unsigned short *)PORT2ADDR_USB(port);
 174         else
 175 #endif
 176
 177 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 178         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 179                 unsigned short w;
 180                 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
 181                 return w;
 182         } else
 183 #endif
 184                 v = *(volatile unsigned short *)PORT2ADDR(port);
 185
 186         delay();
 187         return (v);
 188 }
 189
 190 unsigned long _inl_p(unsigned long port)
 191 {
 192         unsigned long  v;
 193
 194         v = *(volatile unsigned long *)PORT2ADDR(port);
 195         delay();
 196         return (v);
 197 }
 198
 199 void _outb(unsigned char b, unsigned long port)
 200 {
 201         if (port >= LAN_IOSTART && port < LAN_IOEND)
 202                 _ne_outb(b, PORT2ADDR_NE(port));
 203         else
 204 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 205         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 206                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 207         } else
 208 #endif
 209                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 210 }
 211
 212 void _outw(unsigned short w, unsigned long port)
 213 {
 214         if (port >= LAN_IOSTART && port < LAN_IOEND)
 215                 _ne_outw(w, PORT2ADDR_NE(port));
 216         else
 217 #if defined(CONFIG_USB)
 218         if(port >= 0x340 && port < 0x3a0)
 219                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 220         else
 221 #endif
 222
 223 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 224         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 225                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 226         } else
 227 #endif
 228                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 229 }
 230
 231 void _outl(unsigned long l, unsigned long port)
 232 {
 233 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 234         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 235                 pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
 236         } else
 237 #endif
 238         *(volatile unsigned long *)PORT2ADDR(port) = l;
 239 }
 240
 241 void _outb_p(unsigned char b, unsigned long port)
 242 {
 243         if (port >= LAN_IOSTART && port < LAN_IOEND)
 244                 _ne_outb(b, PORT2ADDR_NE(port));
 245         else
 246 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 247         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 248                 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
 249         } else
 250 #endif
 251                 *(volatile unsigned char *)PORT2ADDR(port) = b;
 252
 253         delay();
 254 }
 255
 256 void _outw_p(unsigned short w, unsigned long port)
 257 {
 258         if (port >= LAN_IOSTART && port < LAN_IOEND)
 259                 _ne_outw(w, PORT2ADDR_NE(port));
 260         else
 261 #if defined(CONFIG_USB)
 262         if(port >= 0x340 && port < 0x3a0)
 263                 *(volatile unsigned short *)PORT2ADDR_USB(port) = w;
 264         else
 265 #endif
 266
 267 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 268         if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 269                 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
 270         } else
 271 #endif
 272                 *(volatile unsigned short *)PORT2ADDR(port) = w;
 273
 274         delay();
 275 }
 276
 277 void _outl_p(unsigned long l, unsigned long port)
 278 {
 279         *(volatile unsigned long *)PORT2ADDR(port) = l;
 280         delay();
 281 }
 282
 283 void _insb(unsigned int port, void *addr, unsigned long count)
 284 {
 285         if (port >= LAN_IOSTART && port < LAN_IOEND)
 286                 _ne_insb(PORT2ADDR_NE(port), addr, count);
 287 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 288         else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 289                 pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char),
 290                                 count, 1);
 291         }
 292 #endif
 293         else {
 294                 unsigned char *buf = addr;
 295                 unsigned char *portp = PORT2ADDR(port);
 296                 while (count--)
 297                         *buf++ = *(volatile unsigned char *)portp;
 298         }
 299 }
 300
 301 void _insw(unsigned int port, void *addr, unsigned long count)
 302 {
 303         unsigned short *buf = addr;
 304         unsigned short *portp;
 305
 306         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 307                 /*
 308                  * This portion is only used by smc91111.c to read data
 309                  * from the DATA_REG. Do not swap the data.
 310                  */
 311                 portp = PORT2ADDR_NE(port);
 312                 while (count--)
 313                         *buf++ = *(volatile unsigned short *)portp;
 314 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 315         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 316                 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
 317                                 count, 1);
 318 #endif
 319         } else {
 320                 portp = PORT2ADDR(port);
 321                 while (count--)
 322                         *buf++ = *(volatile unsigned short *)portp;
 323         }
 324 }
 325
 326 void _insl(unsigned int port, void *addr, unsigned long count)
 327 {
 328         unsigned long *buf = addr;
 329         unsigned long *portp;
 330
 331         portp = PORT2ADDR(port);
 332         while (count--)
 333                 *buf++ = *(volatile unsigned long *)portp;
 334 }
 335
 336 void _outsb(unsigned int port, const void *addr, unsigned long count)
 337 {
 338         const unsigned char *buf = addr;
 339         unsigned char *portp;
 340
 341         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 342                 portp = PORT2ADDR_NE(port);
 343                 while (count--)
 344                         _ne_outb(*buf++, portp);
 345 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 346         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 347                 pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
 348                                  count, 1);
 349 #endif
 350         } else {
 351                 portp = PORT2ADDR(port);
 352                 while (count--)
 353                         *(volatile unsigned char *)portp = *buf++;
 354         }
 355 }
 356
 357 void _outsw(unsigned int port, const void *addr, unsigned long count)
 358 {
 359         const unsigned short *buf = addr;
 360         unsigned short *portp;
 361
 362         if (port >= LAN_IOSTART && port < LAN_IOEND) {
 363                 /*
 364                  * This portion is only used by smc91111.c to write data
 365                  * into the DATA_REG. Do not swap the data.
 366                  */
 367                 portp = PORT2ADDR_NE(port);
 368                 while (count--)
 369                         *(volatile unsigned short *)portp = *buf++;
 370 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
 371         } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
 372                 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
 373                                  count, 1);
 374 #endif
 375         } else {
 376                 portp = PORT2ADDR(port);
 377                 while (count--)
 378                         *(volatile unsigned short *)portp = *buf++;
 379         }
 380 }
 381
 382 void _outsl(unsigned int port, const void *addr, unsigned long count)
 383 {
 384         const unsigned long *buf = addr;
 385         unsigned char *portp;
 386
 387         portp = PORT2ADDR(port);
 388         while (count--)
 389                 *(volatile unsigned long *)portp = *buf++;
 390 }