src/core/pcmcia.c

   1 #if 0
   2
   3 /*
   4  *      pcmcia.c
   5  *
   6  *      PCMCIA support routines for etherboot - generic stuff
   7  *
   8  *      This code has partly be taken from the linux kernel sources, .../drivers/pcmcia/
   9  *      Started & put together by
  10  *              Anselm Martin Hoffmeister
  11  *              Stockholm Projekt Computer-Service
  12  *              Sankt Augustin / Bonn, Germany
  13  *
  14  *      Distributed under GPL2
  15  */
  16
  17 /*
  18  *
  19  *
  20  *                      ******************************
  21  *                      PLEASE DO NOT YET WORK ON THIS
  22  *                      ******************************
  23  *
  24  *      I'm still fixing it up on every end, so we most probably would interfere
  25  *      at some point. If there's anything obvious or better, not-so-obvious,
  26  *      please contact me by e-mail: anselm (AT) hoffmeister (DOT) be   *THANKS*
  27  */
  28 #include <stdio.h>
  29 #include <pcmcia.h>
  30 #include <i82365.h>
  31 #define CODE_STATUS "alpha"
  32 #define CODE_VERSION "0.1.3"
  33 #include <pcmcia-opts.h>
  34 #include <console.h>
  35 #include <gpxe/init.h>
  36
  37 int     sockets; /* AHTODO: Phase this out! */
  38 u_int   pccsocks;
  39 struct  pccsock_t pccsock[MAXPCCSOCKS];
  40 int     inited = -1;
  41 struct  pcc_config_t pccconfig[MAXPCCCONFIGS];
  42
  43 struct  driver_interact_t driver[] = {
  44 #ifdef  SUPPORT_I82365
  45         { I82365, i82365_interfacer, "Intel_82365" },
  46 #endif
  47 };
  48
  49 #define NUM_DRIVERS (sizeof(driver)/(sizeof(struct driver_interact_t)))
  50
  51 void    sleepticks(int numticks ) {
  52         u_int   tmo;
  53         for (tmo = currticks()+numticks; currticks() < tmo; ) {
  54         }
  55         return;
  56 }
  57
  58 static void pcmcia_init_all(void) {
  59         u_int i, j, k, l, m, n, ui, configs = 0;
  60         u_int multicard[8];
  61         u_char  *uc, upc;
  62         if ( PDEBUG > 0 ) printf("Initializing PCMCIA subsystem (code-status: " CODE_STATUS ", Version " CODE_VERSION ")\n");
  63         if ( PDEBUG > 2 ) {
  64                 printf ( "Supporting %d driver(s): ", NUM_DRIVERS );
  65                 for ( i = 0; i < NUM_DRIVERS; ++i ) {
  66                         printf ( "[%s] ", driver[i].name );
  67                 }
  68                 printf ( "\n" );
  69         }
  70         pccsocks = 0;
  71         sockets = 0;
  72         // Init all drivers in the driver[] array:
  73         for ( i = 0; i < NUM_DRIVERS; ++i ) {
  74                 driver[i].f(INIT,0,i,0,0);      // init needs no params. It uses pccsocks and pccsock[].
  75                                                 // Only i tells it which driver_id itself is.
  76         }
  77         for ( i = 0; i < pccsocks; ++i ) {
  78                 printf ( "Socket %d: ", i );
  79                 if ( pccsock[i].status != HASCARD ) {
  80                         printf ( "is %s: skipping\n", pccsock[i].status == EMPTY? "empty":"[status unknown]" );
  81                         continue;
  82                 }
  83                 if ( 0 != driver[pccsock[i].drivernum].f(MAPATTRMEM,pccsock[i].internalid,MAP_ATTRMEM_TO, MAP_ATTRMEM_LEN,0 ) ) {
  84                         printf ("PCMCIA controller failed to map attribute memory.\n**** SEVERE ERROR CONDITION. Skipping controller.\n" );
  85                         if ( PDEBUG > 2 ) {
  86                                 printf ( "<press key. THIS CONDITION SHOULD BE REPORTED!>\n" ); getchar();
  87                         }
  88                         continue;
  89                 }
  90                 // parse configuration information
  91                 uc = ioremap ( MAP_ATTRMEM_TO, MAP_ATTRMEM_LEN );
  92                 pccsock[i].stringoffset = pccsock[i].configoffset = pccsock[i].stringlength = 0;
  93                 pccsock[i].type = 0xff;
  94                 for ( l = 0; l < 8; ++l ) multicard[l] = 0;
  95                 sleepticks(2);
  96                 for ( l = ui = 0; ui < 0x800; ui += uc[(2*ui)+2] + 2 ) {
  97                         if ( uc[(2*ui)] == 0xff ) {
  98                                 break;
  99                         }
 100                         // This loop is complete rubbish AFAICS.
 101                         // But without it, my test system won't come up.
 102                         // It's too bad to develop on broken hardware
 103                         //                              - Anselm
 104                 }
 105                 sleepticks(2);
 106                 configs = 0;
 107                 inited = -1;
 108                 for ( l = ui = 0; ui < 0x800; ui += uc[(2*ui)+2] + 2 ) {
 109                         if ( uc[(2*ui)] == 0xff ) break;
 110                         else if ( uc[2*ui] == 0x15 ) {
 111                                 for ( k = 2 * ( ui + 2 ); ( uc[k] <= ' ' ) && ( k < ( 2 * ( uc[2*(ui+1)] + ui + 2 ) ) ) ; k += 2 ) { ; }
 112                                 pccsock[i].stringoffset = k;
 113                                 pccsock[i].stringlength = ( 2 * ( ui + 2 + uc[(2*ui)+2] ) - k ) / 2;
 114                         } else if ( uc[2*ui] == 0x21 ) {
 115                                 pccsock[i].type = uc[(2*ui)+4];
 116                         } else if ( uc[2*ui] == 0x1a ) { // Configuration map
 117                                 printf ( "\nConfig map 0x1a found [" );
 118                                 for ( k = 0; k < uc[2*(ui+1)]; ++k ) {
 119                                         printf ( "%02x ", uc[2*(ui+k+2)] );
 120                                 }
 121                                 printf ( "]\nHighest config available is %d\n", uc[2*(ui+3)] );
 122                                 m = uc[2*(ui+2)];
 123                                 pccsock[i].configoffset = 0;
 124                                 for ( j = 0; j <= (m & 3); ++j ) {
 125                                         pccsock[i].configoffset += uc[2*(ui+4+j)] << (8*j);
 126                                 }
 127                                 pccsock[i].rmask0 = 0;
 128                                 for ( j = 0; j <= ( ( ( m & 0x3c ) >> 2 ) & 3 ); ++j ) {
 129                                         pccsock[i].rmask0 += uc[2*(ui+5+(m&3)+j)] << (8*j);
 130                                 }
 131                                 j = pccsock[i].rmask0;
 132                                 printf ( "Config offset is %x, card has regs: < %s%s%s%s%s>\n", pccsock[i].configoffset,
 133                                         j & 1 ? "COR ":"", j & 2 ? "CCSR ":"", j & 4 ? "PRR ":"", j & 8 ? "SCR ":"", j & 16? "ESR ":"" );
 134                                 printf ( "COR + CCSR contents (si/du) %x %x/%x %x\n", uc[pccsock[i].configoffset+0],
 135                                         uc[pccsock[i].configoffset+2],uc[pccsock[i].configoffset*2],uc[(pccsock[i].configoffset*2)+2] );
 136                                 printf ( "          " );
 137                         } else if ( uc[2*ui] == 0x1b ) { // Configuration data entry
 138                                 //printf ( "Config data 0x1b found [\n" );getchar();
 139                                 for ( k = 0; k < uc[2*(ui+1)]; ++k ) {
 140                                 //      printf ( "%02x ", uc[2*(ui+k+2)] );
 141                                 }
 142                                 // Parse this tuple into pccconfig[configs]
 143                                 // printf ( "]\n" );
 144                                 if ( configs == MAXPCCCONFIGS ) continue;
 145                                 k = 2*ui+4;
 146                                 pccconfig[configs].index = uc[k] & 0x3f;
 147                                 if ( uc[k] & 0x80 ) {
 148                                 //      printf ( "Special config, unsupp. for now\n" );
 149                                         continue;
 150                                 }
 151                                 k+=2;
 152                                 // printf ( "Features: %2x\n", uc[k] );
 153                                 if ( uc[k] & 0x7 ) {
 154                                         // printf ( "Cannot work with Vcc/Timing configs right now\n" );
 155                                         continue;
 156                                 }
 157                                 pccconfig[configs].iowin = pccconfig[configs].iolen = 0;
 158                                 if ( 0 != ( uc[k] & 0x8 ) ) {
 159                                         k+=2;
 160                                         // printf ( "Reading IO config: " );
 161                                         if ( 0 == ( uc[k] & 0x80 ) ) {
 162                                         //      printf ( "Cannot work with auto/io config\n" );
 163                                                 continue;
 164                                         }
 165                                         k+=2;
 166                                         if ( 0 != ( uc[k] & 0x0f ) ) {
 167                                         //      printf ( "Don't support more than 1 iowin right now\n" );
 168                                                 continue;
 169                                         }
 170                                         j = (uc[k] & 0x30) >> 4;
 171                                         m = (uc[k] & 0xc0) >> 6;
 172                                         if ( 3 == j ) ++j;
 173                                         if ( 3 == m ) ++m;
 174                                         k += 2;
 175                                         pccconfig[configs].iowin = 0;
 176                                         pccconfig[configs].iolen = 1;
 177                                         for ( n = 0; n < j; ++n, k+=2 ) {
 178                                                 pccconfig[configs].iowin += uc[k] << (n*8);
 179                                         }
 180                                         for ( n = 0; n < m; ++n, k+=2 ) {
 181                                                 pccconfig[configs].iolen += uc[k] << (n*8);
 182                                         }
 183                                         // printf ( "io %x len %d (%d)\n", pccconfig[configs].iowin, pccconfig[configs].iolen,configs );
 184                                 }
 185                                 for ( j = 0; j < (uc[k] & 3); ++j ) {
 186                                 //      pccconfig[configs].iowin += (uc[k+(2*j)+2]) << (8*j);
 187                                 }
 188                                 ++configs;
 189                         }
 190                 }
 191                 if ( pccsock[i].stringoffset > 0 ) {    // If no identifier, it's not a valid CIS (as of documentation...)
 192                         printf ( "[" );
 193                         for ( k = 0; ( k <  pccsock[i].stringlength ) && ( k < 64 ); ++k ) {
 194                                 j = uc[pccsock[i].stringoffset + 2 * k];
 195                                 printf ( "%c", (j>=' '? j:' ' ) );
 196                         }
 197                         printf ("]\n          is type %d (", pccsock[i].type );
 198                         switch ( pccsock[i].type ) {
 199                           case  0x00:
 200                                 printf ( "MULTI" ); break;
 201                           case  0x01:
 202                                 printf ( "Memory" ); break;
 203                           case  0x02:
 204                                 printf ( "Serial" ); break;
 205                           case  0x03:
 206                                 printf ( "Parallel" ); break;
 207                           case  0x04:
 208                                 printf ( "Fixed" ); break;
 209                           case  0x05:
 210                                 printf ( "Video" ); break;
 211                           case  0x06:
 212                                 printf ( "Network" ); break;
 213                           case  0x07:
 214                                 printf ( "AIMS" ); break;
 215                           case  0x08:
 216                                 printf ( "SCSI" ); break;
 217                           case  0x106: // Special / homebrew to say "Multi/network"
 218                                 printf ( "MULTI, with Network" ); break; // AHTODO find a card for this
 219                           default:
 220                                 printf ( "UNSUPPORTED/UNKNOWN" );
 221                         }
 222                         printf ( ") with %d possible configuration(s)\n", configs );
 223                         // Now set dependency: If it's Network or multi->network, accept
 224                         if ( (inited <= 0 ) && (6 == (0xff & pccsock[i].type) ) && (0 < configs ) ) {
 225                                 printf ( "activating this device with ioport %x-%x (config #%d)\n",
 226                                 pccconfig[0].iowin, pccconfig[0].iowin+pccconfig[0].iolen-1, pccconfig[0].index );
 227                                 inited = i;
 228                                 // And unmap attrmem ourselves!
 229                                 printf ( "Activating config..." );
 230                                 if ( m=driver[pccsock[i].drivernum].f(SELECTCONFIG,pccsock[i].internalid,pccconfig[0].index,0,&pccconfig[0]) ) {
 231                                         printf ("Failure(%d)!",m); inited = -1;
 232                                         driver[pccsock[i].drivernum].f(UNMAPATTRMEM,pccsock[i].internalid,0,0,0);
 233                                 }
 234                                 printf ( "done!\n" );
 235                                 continue;
 236                         }
 237                 } else {
 238                         printf ( "unsupported - no identifier string found in CIS\n" );
 239                 }
 240                 // unmap the PCMCIA device
 241                 if ( i != inited ) {
 242                     if ( 0 != driver[pccsock[i].drivernum].f(UNMAPATTRMEM,pccsock[i].internalid,0,0,0) ) {
 243                         printf ("PCMCIA controller failed to unmap attribute memory.\n**** SEVERE ERROR CONDITION ****\n" );
 244                         if ( PDEBUG > 2 ) {
 245                                 printf ( "<press key. THIS CONDITION SHOULD BE REPORTED!>\n" ); getchar();
 246                         }
 247                         continue;
 248                     }
 249                 }
 250         }
 251         if ( PDEBUG > 2 ) {
 252                 printf ( "<press key to exit the pcmcia_init_all routine>\n" );
 253                 getchar();
 254         }
 255
 256 }
 257
 258 static void     pcmcia_shutdown_all(void) {
 259         int i;
 260         //if ( PDEBUG > 2 ) {printf("<press key to continue>\n" ); getchar(); }
 261         for ( i = 0; i < pccsocks; ++i ) {
 262                 driver[pccsock[i].drivernum].f(SHUTDOWN,pccsock[i].internalid,0,0,0);
 263         }
 264         printf("Shutdown of PCMCIA subsystem completed");
 265 }
 266
 267 #endif