gpxe/src/drivers/net/prism2_plx.c

   1 /**************************************************************************
   2 Etherboot -  BOOTP/TFTP Bootstrap Program
   3 Prism2 NIC driver for Etherboot
   4 Wrapper for prism2_plx
   5
   6 Written by Michael Brown of Fen Systems Ltd
   7 $Id$
   8 ***************************************************************************/
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2, or (at
  14  * your option) any later version.
  15  */
  16
  17 FILE_LICENCE ( GPL2_OR_LATER );
  18
  19 #include <gpxe/pci.h>
  20 #include <nic.h>
  21
  22 #define WLAN_HOSTIF WLAN_PLX
  23 #include "prism2.c"
  24
  25 /*
  26  * Find PLX card.  Prints out information strings from PCMCIA CIS as visual
  27  * confirmation of presence of card.
  28  *
  29  * Arguments:
  30  *      hw              device structure to be filled in
  31  *      p               PCI device structure
  32  *
  33  * Returns:
  34  *      1               Success
  35  */
  36 static int prism2_find_plx ( hfa384x_t *hw, struct pci_device *p )
  37 {
  38   int found = 0;
  39   uint32_t plx_lcr  = 0; /* PLX9052 Local Configuration Register Base (I/O) */
  40   uint32_t attr_mem = 0; /* Prism2 Attribute Memory Base */
  41   uint32_t iobase   = 0; /* Prism2 I/O Base */
  42   unsigned char *cis_tpl  = NULL;
  43   unsigned char *cis_string;
  44
  45   /* Obtain all memory and IO base addresses */
  46   pci_read_config_dword( p, PLX_LOCAL_CONFIG_REGISTER_BASE, &plx_lcr);
  47   plx_lcr &= PCI_BASE_ADDRESS_IO_MASK;
  48   pci_read_config_dword( p, PRISM2_PLX_ATTR_MEM_BASE, &attr_mem);
  49   pci_read_config_dword( p, PRISM2_PLX_IO_BASE, &iobase);
  50   iobase &= PCI_BASE_ADDRESS_IO_MASK;
  51
  52   /* Fill out hw structure */
  53   hw->iobase = iobase;
  54   printf ( "PLX9052 has local config registers at %#x\n", plx_lcr );
  55   printf ( "Prism2 has attribute memory at %#x and I/O base at %#x\n", attr_mem, iobase );
  56
  57   /* Search for CIS strings */
  58   printf ( "Searching for PCMCIA card...\n" );
  59   cis_tpl = bus_to_virt(attr_mem);
  60   while ( *cis_tpl != CISTPL_END ) {
  61     if ( *cis_tpl == CISTPL_VERS_1 ) {
  62       /* CISTPL_VERS_1 contains some nice text strings */
  63       printf ( "...found " );
  64       found = 1;
  65       cis_string = cis_tpl + CISTPL_VERS_1_STR_OFF;
  66       while ( ! ( ( *cis_string == 0 ) && ( *(cis_string+CIS_STEP) == 0 ) ) ) {
  67         printf ( "%c", *cis_string == 0 ? ' ' : *cis_string );
  68         cis_string += CIS_STEP;
  69       }
  70       printf ( "\n" );
  71     }
  72     /* printf ( "CIS tuple type %#hhx, length %#hhx\n", *cis_tpl, *(cis_tpl+CISTPL_LEN_OFF) ); */
  73     cis_tpl += CISTPL_HEADER_LEN + CIS_STEP * ( *(cis_tpl+CISTPL_LEN_OFF) );
  74   }
  75   if ( found == 0 ) {
  76     printf ( "...nothing found\n" );
  77   }
  78   ((unsigned char *)bus_to_virt(attr_mem))[COR_OFFSET] = COR_VALUE; /* Write COR to enable PC card */
  79   return found;
  80 }
  81
  82 static int prism2_plx_probe ( struct nic *nic, struct pci_device *pci ) {
  83   hfa384x_t *hw = &hw_global;
  84
  85   /* Find and intialise PLX Prism2 card */
  86   if ( ! prism2_find_plx ( hw, pci ) ) return 0;
  87   nic->ioaddr = hw->iobase;
  88   nic->irqno  = 0;
  89   return prism2_probe ( nic, hw );
  90 }
  91
  92 static void prism2_plx_disable ( struct nic *nic ) {
  93   prism2_disable ( nic );
  94 }
  95
  96 static struct pci_device_id prism2_plx_nics[] = {
  97 PCI_ROM(0x1385, 0x4100, "ma301",         "Netgear MA301", 0),
  98 PCI_ROM(0x10b7, 0x7770, "3c-airconnect", "3Com AirConnect", 0),
  99 PCI_ROM(0x111a, 0x1023, "ss1023",        "Siemens SpeedStream SS1023", 0),
 100 PCI_ROM(0x15e8, 0x0130, "correga",       "Correga", 0),
 101 PCI_ROM(0x1638, 0x1100, "smc2602w",      "SMC EZConnect SMC2602W", 0),  /* or Eumitcom PCI WL11000, Addtron AWA-100 */
 102 PCI_ROM(0x16ab, 0x1100, "gl24110p",      "Global Sun Tech GL24110P", 0),
 103 PCI_ROM(0x16ab, 0x1101, "16ab-1101",     "Unknown", 0),
 104 PCI_ROM(0x16ab, 0x1102, "wdt11",         "Linksys WDT11", 0),
 105 PCI_ROM(0x16ec, 0x3685, "usr2415",       "USR 2415", 0),
 106 PCI_ROM(0xec80, 0xec00, "f5d6000",       "Belkin F5D6000", 0),
 107 PCI_ROM(0x126c, 0x8030, "emobility",     "Nortel emobility", 0),
 108 };
 109
 110 PCI_DRIVER ( prism2_plx_driver, prism2_plx_nics, PCI_NO_CLASS );
 111
 112
 113 DRIVER ( "Prism2/PLX", nic_driver, pci_driver, prism2_plx_driver,
 114          prism2_plx_probe, prism2_plx_disable );
 115
 116 /*
 117  * Local variables:
 118  *  c-basic-offset: 8
 119  *  c-indent-level: 8
 120  *  tab-width: 8
 121  * End:
 122  */