resources/rtl8139.h

   1 /* Quarn OS
   2  *
   3  * Realtek 8139 ethernet card
   4  *
   5  * Copyright (C) 2009 Pawel Dziepak
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  */
  22
  23 #include "net/nic.h"
  24 #include "pci.h"
  25
  26 namespace resources {
  27         /* socket */
  28         class rtl8139 : public net::nic, public device {
  29         protected:
  30                 enum reg {
  31                         tsd0 = 0x10,
  32                         tsad0 = 0x20,
  33                         rbstart = 0x30,
  34                         cmd = 0x37,
  35                         capr = 0x38,
  36                         imr = 0x3c,
  37                         isr = 0x3e,
  38                         rec_conf = 0x44,
  39                         config1 = 0x52
  40                 };
  41
  42                 enum rcr {
  43                         rcr_apa = 1, /* accept all packets */
  44                         rcr_apm = 2, /* accept physical match */
  45                         rcr_am = 4, /* accept multicast */
  46                         rcr_ab = 8, /* accept broadcast */
  47                         rcr_aer = 0x20 /* accept error packet */
  48                 };
  49
  50                 struct packet {
  51                         u16 status;
  52                         u16 size;
  53                 };
  54
  55                 pci_did id;
  56
  57                 int send_index;
  58                 int received_index;
  59
  60                 volatile char *rec_buffer;
  61
  62                 void init();
  63                 void send_packet(const buffer &x);
  64                 void receive_packet();
  65                 void get_mac_addr(u8 *addr) const;
  66
  67                 void irq_handler();
  68
  69         public:
  70                 bool init_device(p<did>);
  71                 void send_data(const buffer &x);
  72                 net::mac_addr get_haddr() const;
  73
  74                 static bool check_device(p<did>);
  75                 static void register_type();
  76         };
  77 }