pcmcia.c

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#if 0

/*
 *      pcmcia.c
 *
 *      PCMCIA support routines for etherboot - generic stuff
 *
 *      This code has partly be taken from the linux kernel sources, .../drivers/pcmcia/
 *      Started & put together by
 *              Anselm Martin Hoffmeister
 *              Stockholm Projekt Computer-Service
 *              Sankt Augustin / Bonn, Germany
 *
 *      Distributed under GPL2
 */

/*
 *
 *
 *                      ******************************
 *                      PLEASE DO NOT YET WORK ON THIS
 *                      ******************************
 *
 *      I'm still fixing it up on every end, so we most probably would interfere
 *      at some point. If there's anything obvious or better, not-so-obvious,
 *      please contact me by e-mail: anselm (AT) hoffmeister (DOT) be   *THANKS*
 */
#include <stdio.h>
#include <pcmcia.h>
#include <i82365.h>
#define CODE_STATUS "alpha"
#define CODE_VERSION "0.1.3"
#include <pcmcia-opts.h>
#include <console.h>
#include <gpxe/init.h>

int     sockets; /* AHTODO: Phase this out! */
u_int   pccsocks;
struct  pccsock_t pccsock[MAXPCCSOCKS];
int     inited = -1;
struct  pcc_config_t pccconfig[MAXPCCCONFIGS];

struct  driver_interact_t driver[] = {
#ifdef  SUPPORT_I82365
        { I82365, i82365_interfacer, "Intel_82365" },
#endif
};

#define NUM_DRIVERS (sizeof(driver)/(sizeof(struct driver_interact_t)))

void    sleepticks(int numticks ) {
        u_int   tmo;
        for (tmo = currticks()+numticks; currticks() < tmo; ) {
        }
        return;
}

static void pcmcia_init_all(void) {
        u_int i, j, k, l, m, n, ui, configs = 0;
        u_int multicard[8];
        u_char  *uc, upc;
        if ( PDEBUG > 0 ) printf("Initializing PCMCIA subsystem (code-status: " CODE_STATUS ", Version " CODE_VERSION ")\n");
        if ( PDEBUG > 2 ) {
                printf ( "Supporting %d driver(s): ", NUM_DRIVERS );
                for ( i = 0; i < NUM_DRIVERS; ++i ) {
                        printf ( "[%s] ", driver[i].name );
                }
                printf ( "\n" );
        }
        pccsocks = 0;
        sockets = 0;
        // Init all drivers in the driver[] array:
        for ( i = 0; i < NUM_DRIVERS; ++i ) {
                driver[i].f(INIT,0,i,0,0);      // init needs no params. It uses pccsocks and pccsock[].
                                                // Only i tells it which driver_id itself is.
        }
        for ( i = 0; i < pccsocks; ++i ) {
                printf ( "Socket %d: ", i );
                if ( pccsock[i].status != HASCARD ) {
                        printf ( "is %s: skipping\n", pccsock[i].status == EMPTY? "empty":"[status unknown]" );
                        continue;
                }
                if ( 0 != driver[pccsock[i].drivernum].f(MAPATTRMEM,pccsock[i].internalid,MAP_ATTRMEM_TO, MAP_ATTRMEM_LEN,0 ) ) {
                        printf ("PCMCIA controller failed to map attribute memory.\n**** SEVERE ERROR CONDITION. Skipping controller.\n" );
                        if ( PDEBUG > 2 ) {
                                printf ( "<press key. THIS CONDITION SHOULD BE REPORTED!>\n" ); getchar();
                        }
                        continue;
                }
                // parse configuration information
                uc = ioremap ( MAP_ATTRMEM_TO, MAP_ATTRMEM_LEN );
                pccsock[i].stringoffset = pccsock[i].configoffset = pccsock[i].stringlength = 0;
                pccsock[i].type = 0xff;
                for ( l = 0; l < 8; ++l ) multicard[l] = 0;
                sleepticks(2);
                for ( l = ui = 0; ui < 0x800; ui += uc[(2*ui)+2] + 2 ) {
                        if ( uc[(2*ui)] == 0xff ) {
                                break;
                        }
                        // This loop is complete rubbish AFAICS.
                        // But without it, my test system won't come up.
                        // It's too bad to develop on broken hardware
                        //                              - Anselm
                }
                sleepticks(2);
                configs = 0;
                inited = -1;
                for ( l = ui = 0; ui < 0x800; ui += uc[(2*ui)+2] + 2 ) {
                        if ( uc[(2*ui)] == 0xff ) break;
                        else if ( uc[2*ui] == 0x15 ) {
                                for ( k = 2 * ( ui + 2 ); ( uc[k] <= ' ' ) && ( k < ( 2 * ( uc[2*(ui+1)] + ui + 2 ) ) ) ; k += 2 ) { ; }
                                pccsock[i].stringoffset = k;
                                pccsock[i].stringlength = ( 2 * ( ui + 2 + uc[(2*ui)+2] ) - k ) / 2;
                        } else if ( uc[2*ui] == 0x21 ) {
                                pccsock[i].type = uc[(2*ui)+4];
                        } else if ( uc[2*ui] == 0x1a ) { // Configuration map
                                printf ( "\nConfig map 0x1a found [" );
                                for ( k = 0; k < uc[2*(ui+1)]; ++k ) {
                                        printf ( "%02x ", uc[2*(ui+k+2)] );
                                }
                                printf ( "]\nHighest config available is %d\n", uc[2*(ui+3)] );
                                m = uc[2*(ui+2)];
                                pccsock[i].configoffset = 0;
                                for ( j = 0; j <= (m & 3); ++j ) {
                                        pccsock[i].configoffset += uc[2*(ui+4+j)] << (8*j);
                                }
                                pccsock[i].rmask0 = 0;
                                for ( j = 0; j <= ( ( ( m & 0x3c ) >> 2 ) & 3 ); ++j ) {
                                        pccsock[i].rmask0 += uc[2*(ui+5+(m&3)+j)] << (8*j);
                                }
                                j = pccsock[i].rmask0;
                                printf ( "Config offset is %x, card has regs: < %s%s%s%s%s>\n", pccsock[i].configoffset,
                                        j & 1 ? "COR ":"", j & 2 ? "CCSR ":"", j & 4 ? "PRR ":"", j & 8 ? "SCR ":"", j & 16? "ESR ":"" );
                                printf ( "COR + CCSR contents (si/du) %x %x/%x %x\n", uc[pccsock[i].configoffset+0],
                                        uc[pccsock[i].configoffset+2],uc[pccsock[i].configoffset*2],uc[(pccsock[i].configoffset*2)+2] );
                                printf ( "          " );
                        } else if ( uc[2*ui] == 0x1b ) { // Configuration data entry
                                //printf ( "Config data 0x1b found [\n" );getchar();
                                for ( k = 0; k < uc[2*(ui+1)]; ++k ) {
                                //      printf ( "%02x ", uc[2*(ui+k+2)] );
                                }
                                // Parse this tuple into pccconfig[configs]
                                // printf ( "]\n" );
                                if ( configs == MAXPCCCONFIGS ) continue;
                                k = 2*ui+4;
                                pccconfig[configs].index = uc[k] & 0x3f;
                                if ( uc[k] & 0x80 ) {
                                //      printf ( "Special config, unsupp. for now\n" );
                                        continue;
                                }
                                k+=2;
                                // printf ( "Features: %2x\n", uc[k] );
                                if ( uc[k] & 0x7 ) {
                                        // printf ( "Cannot work with Vcc/Timing configs right now\n" );
                                        continue;
                                }
                                pccconfig[configs].iowin = pccconfig[configs].iolen = 0;
                                if ( 0 != ( uc[k] & 0x8 ) ) {
                                        k+=2;
                                        // printf ( "Reading IO config: " );
                                        if ( 0 == ( uc[k] & 0x80 ) ) {
                                        //      printf ( "Cannot work with auto/io config\n" );
                                                continue;
                                        }
                                        k+=2;
                                        if ( 0 != ( uc[k] & 0x0f ) ) {
                                        //      printf ( "Don't support more than 1 iowin right now\n" );
                                                continue;
                                        }
                                        j = (uc[k] & 0x30) >> 4;
                                        m = (uc[k] & 0xc0) >> 6;
                                        if ( 3 == j ) ++j;
                                        if ( 3 == m ) ++m;
                                        k += 2;
                                        pccconfig[configs].iowin = 0;
                                        pccconfig[configs].iolen = 1;
                                        for ( n = 0; n < j; ++n, k+=2 ) {
                                                pccconfig[configs].iowin += uc[k] << (n*8);
                                        }
                                        for ( n = 0; n < m; ++n, k+=2 ) {
                                                pccconfig[configs].iolen += uc[k] << (n*8);
                                        }
                                        // printf ( "io %x len %d (%d)\n", pccconfig[configs].iowin, pccconfig[configs].iolen,configs );
                                }
                                for ( j = 0; j < (uc[k] & 3); ++j ) {
                                //      pccconfig[configs].iowin += (uc[k+(2*j)+2]) << (8*j);
                                }
                                ++configs;
                        }
                }
                if ( pccsock[i].stringoffset > 0 ) {    // If no identifier, it's not a valid CIS (as of documentation...)
                        printf ( "[" );
                        for ( k = 0; ( k <  pccsock[i].stringlength ) && ( k < 64 ); ++k ) {
                                j = uc[pccsock[i].stringoffset + 2 * k];
                                printf ( "%c", (j>=' '? j:' ' ) );
                        }
                        printf ("]\n          is type %d (", pccsock[i].type );
                        switch ( pccsock[i].type ) {
                          case  0x00:
                                printf ( "MULTI" ); break;
                          case  0x01:
                                printf ( "Memory" ); break;
                          case  0x02:
                                printf ( "Serial" ); break;
                          case  0x03:
                                printf ( "Parallel" ); break;
                          case  0x04:
                                printf ( "Fixed" ); break;
                          case  0x05:
                                printf ( "Video" ); break;
                          case  0x06:
                                printf ( "Network" ); break;
                          case  0x07:
                                printf ( "AIMS" ); break;
                          case  0x08:
                                printf ( "SCSI" ); break;
                          case  0x106: // Special / homebrew to say "Multi/network"
                                printf ( "MULTI, with Network" ); break; // AHTODO find a card for this
                          default:
                                printf ( "UNSUPPORTED/UNKNOWN" );
                        }
                        printf ( ") with %d possible configuration(s)\n", configs );
                        // Now set dependency: If it's Network or multi->network, accept
                        if ( (inited <= 0 ) && (6 == (0xff & pccsock[i].type) ) && (0 < configs ) ) {
                                printf ( "activating this device with ioport %x-%x (config #%d)\n", 
                                pccconfig[0].iowin, pccconfig[0].iowin+pccconfig[0].iolen-1, pccconfig[0].index );
                                inited = i;
                                // And unmap attrmem ourselves!
                                printf ( "Activating config..." );
                                if ( m=driver[pccsock[i].drivernum].f(SELECTCONFIG,pccsock[i].internalid,pccconfig[0].index,0,&pccconfig[0]) ) {
                                        printf ("Failure(%d)!",m); inited = -1;
                                        driver[pccsock[i].drivernum].f(UNMAPATTRMEM,pccsock[i].internalid,0,0,0);
                                }
                                printf ( "done!\n" );
                                continue;
                        }
                } else {
                        printf ( "unsupported - no identifier string found in CIS\n" );
                }
                // unmap the PCMCIA device
                if ( i != inited ) {
                    if ( 0 != driver[pccsock[i].drivernum].f(UNMAPATTRMEM,pccsock[i].internalid,0,0,0) ) {
                        printf ("PCMCIA controller failed to unmap attribute memory.\n**** SEVERE ERROR CONDITION ****\n" );
                        if ( PDEBUG > 2 ) {
                                printf ( "<press key. THIS CONDITION SHOULD BE REPORTED!>\n" ); getchar();
                        }
                        continue;
                    }
                }
        }
        if ( PDEBUG > 2 ) {
                printf ( "<press key to exit the pcmcia_init_all routine>\n" );
                getchar();
        }

}

static void     pcmcia_shutdown_all(void) {
        int i;
        //if ( PDEBUG > 2 ) {printf("<press key to continue>\n" ); getchar(); }
        for ( i = 0; i < pccsocks; ++i ) {
                driver[pccsock[i].drivernum].f(SHUTDOWN,pccsock[i].internalid,0,0,0);
        }
        printf("Shutdown of PCMCIA subsystem completed");
}

#endif