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 #include <gpxe/pci.h>
  18 #include <nic.h>
  19
  20 #define WLAN_HOSTIF WLAN_PLX
  21 #include "prism2.c"
  22
  23 /*
  24  * Find PLX card.  Prints out information strings from PCMCIA CIS as visual
  25  * confirmation of presence of card.
  26  *
  27  * Arguments:
  28  *      hw              device structure to be filled in
  29  *      p               PCI device structure
  30  *
  31  * Returns:
  32  *      1               Success
  33  */
  34 static int prism2_find_plx ( hfa384x_t *hw, struct pci_device *p )
  35 {
  36   int found = 0;
  37   uint32_t plx_lcr  = 0; /* PLX9052 Local Configuration Register Base (I/O) */
  38   uint32_t attr_mem = 0; /* Prism2 Attribute Memory Base */
  39   uint32_t iobase   = 0; /* Prism2 I/O Base */
  40   unsigned char *cis_tpl  = NULL;
  41   unsigned char *cis_string;
  42
  43   /* Obtain all memory and IO base addresses */
  44   pci_read_config_dword( p, PLX_LOCAL_CONFIG_REGISTER_BASE, &plx_lcr);
  45   plx_lcr &= PCI_BASE_ADDRESS_IO_MASK;
  46   pci_read_config_dword( p, PRISM2_PLX_ATTR_MEM_BASE, &attr_mem);
  47   pci_read_config_dword( p, PRISM2_PLX_IO_BASE, &iobase);
  48   iobase &= PCI_BASE_ADDRESS_IO_MASK;
  49
  50   /* Fill out hw structure */
  51   hw->membase = attr_mem;
  52   hw->iobase = iobase;
  53   printf ( "PLX9052 has local config registers at %#lx\n", plx_lcr );
  54   printf ( "Prism2 has attribute memory at %#lx and I/O base at %#lx\n", attr_mem, iobase );
  55
  56   /* Search for CIS strings */
  57   printf ( "Searching for PCMCIA card...\n" );
  58   cis_tpl = bus_to_virt(attr_mem);
  59   while ( *cis_tpl != CISTPL_END ) {
  60     if ( *cis_tpl == CISTPL_VERS_1 ) {
  61       /* CISTPL_VERS_1 contains some nice text strings */
  62       printf ( "...found " );
  63       found = 1;
  64       cis_string = cis_tpl + CISTPL_VERS_1_STR_OFF;
  65       while ( ! ( ( *cis_string == 0 ) && ( *(cis_string+CIS_STEP) == 0 ) ) ) {
  66         printf ( "%c", *cis_string == 0 ? ' ' : *cis_string );
  67         cis_string += CIS_STEP;
  68       }
  69       printf ( "\n" );
  70     }
  71     /* printf ( "CIS tuple type %#hhx, length %#hhx\n", *cis_tpl, *(cis_tpl+CISTPL_LEN_OFF) ); */
  72     cis_tpl += CISTPL_HEADER_LEN + CIS_STEP * ( *(cis_tpl+CISTPL_LEN_OFF) );
  73   }
  74   if ( found == 0 ) {
  75     printf ( "...nothing found\n" );
  76   }
  77   ((unsigned char *)bus_to_virt(attr_mem))[COR_OFFSET] = COR_VALUE; /* Write COR to enable PC card */
  78   return found;
  79 }
  80
  81 static int prism2_plx_probe ( struct nic *nic, struct pci_device *pci ) {
  82   hfa384x_t *hw = &hw_global;
  83
  84   pci_fill_nic ( nic, pci );
  85
  86   /* Find and intialise PLX Prism2 card */
  87   if ( ! prism2_find_plx ( hw, pci ) ) return 0;
  88   nic->ioaddr = hw->iobase;
  89
  90   return prism2_probe ( nic, hw );
  91 }
  92
  93 static void prism2_plx_disable ( struct nic *nic ) {
  94   prism2_disable ( nic );
  95 }
  96
  97 static struct pci_device_id prism2_plx_nics[] = {
  98 PCI_ROM(0x1385, 0x4100, "ma301",         "Netgear MA301"),
  99 PCI_ROM(0x10b7, 0x7770, "3c-airconnect", "3Com AirConnect"),
 100 PCI_ROM(0x111a, 0x1023, "ss1023",        "Siemens SpeedStream SS1023"),
 101 PCI_ROM(0x15e8, 0x0130, "correga",       "Correga"),
 102 PCI_ROM(0x1638, 0x1100, "smc2602w",      "SMC EZConnect SMC2602W"),     /* or Eumitcom PCI WL11000, Addtron AWA-100 */
 103 PCI_ROM(0x16ab, 0x1100, "gl24110p",      "Global Sun Tech GL24110P"),
 104 PCI_ROM(0x16ab, 0x1101, "16ab-1101",     "Unknown"),
 105 PCI_ROM(0x16ab, 0x1102, "wdt11",         "Linksys WDT11"),
 106 PCI_ROM(0x16ec, 0x3685, "usr2415",       "USR 2415"),
 107 PCI_ROM(0xec80, 0xec00, "f5d6000",       "Belkin F5D6000"),
 108 PCI_ROM(0x126c, 0x8030, "emobility",     "Nortel emobility"),
 109 };
 110
 111 PCI_DRIVER ( prism2_plx_driver, prism2_plx_nics, PCI_NO_CLASS );
 112
 113
 114 DRIVER ( "Prism2/PLX", nic_driver, pci_driver, prism2_plx_driver,
 115          prism2_plx_probe, prism2_plx_disable );
 116