Modules/Network/RTL8139/main.c

   1 /* Acess2 RTL8139 Driver
   2  * - By John Hodge (thePowersGang)
   3  *
   4  * main.c - Driver Core
   5  */
   6 #define DEBUG   0
   7 #define VERSION ((0<<8)|50)
   8 #include <acess.h>
   9 #include <modules.h>
  10 #include <fs_devfs.h>
  11 #include <drv_pci.h>
  12 #include <tpl_drv_network.h>
  13
  14 // === CONSTANTS ===
  15 enum eRTL8139_Regs
  16 {
  17         MAC0, MAC1, MAC2,
  18         MAC3, MAC4, MAC5,
  19         MAR0    = 0x08,
  20         MAR1, MAR2, MAR3,
  21         MAR4, MAR5, MAR6, MAR7,
  22
  23         RBSTART = 0x30, //!< Recieve Buffer Start
  24         // ??, ??, ??, RST, RE, TE, ??, ??
  25         CMD     = 0x37,
  26         IMR     = 0x3C,
  27         ISR     = 0x3E,
  28
  29         RCR     = 0x44,
  30
  31         CONFIG1 = 0x52
  32 };
  33
  34 // === TYPES ===
  35 typedef struct sCard
  36 {
  37         Uint16  IOBase;
  38         Uint8   IRQ;
  39
  40          int    NumWaitingPackets;
  41
  42         void    *ReceiveBuffer;
  43         tPAddr  PhysReceiveBuffer;
  44
  45         char    Name[2];
  46         tVFS_Node       Node;
  47         Uint8   MacAddr[6];
  48 }       tCard;
  49
  50 // === PROTOTYPES ===
  51
  52 // === GLOBALS ===
  53 MODULE_DEFINE(0, VERSION, RTL8139, RTL8139_Install, NULL, NULL);
  54  int    giRTL8139_CardCount;
  55 tCard   gpRTL8139_Cards;
  56
  57 // === CODE ===
  58 /**
  59  * \brief Installs the RTL8139 Driver
  60  */
  61 int RTL8139_Install(char **Options)
  62 {
  63          int    id = -1;
  64          int    i = 0;
  65         Uint16  base;
  66
  67         giRTL8139_CardCount = PCI_CountDevices( 0x10EC, 0x8139, 0 );
  68
  69         gpRTL8139_Cards = calloc( giRTL8139_CardCount, sizeof(tCard) );
  70
  71
  72         while( (id = PCI_GetDevice(0x10EC, 0x8139, 0, id)) != -1 )
  73         {
  74                 base = PCI_AssignPort( id, 0, 0x100 );
  75                 gpRTL8139_Cards[i].IOBase = base;
  76                 gpRTL8139_Cards[i].IRQ = PCI_GetIRQ( id );
  77
  78                 // Install IRQ Handler
  79                 IRQ_AddHandler(gpRTL8139_Cards[ k ].IRQ, RTL8136_IRQHandler);
  80
  81                 // Power on
  82                 outb( base + CONFIG1, 0x00 );
  83                 // Reset (0x10 to CMD)
  84                 outb( base + CMD, 0x10 );
  85
  86                 gpRTL8139_Cards[i].ReceiveBuffer = MM_AllocDMA( 2, 32, &gpRTL8139_Cards[i].PhysReceiveBuffer );
  87                 // Set up recieve buffer
  88                 outl(base + RBSTART, (Uint32)gpRTL8139_Cards[i].PhysReceiveBuffer);
  89                 // Set IMR to Transmit OK and Receive OK
  90                 outw(base + IMR, 0x5);
  91
  92                 // Set recieve buffer size, buffer wrap and recieve mask
  93                 outl(base + RCR, 0x8F);
  94
  95                 outb(base + CMD, 0x0C); // Recive Enable and Transmit Enable
  96
  97                 gpRTL8139_Cards[ i ].MacAddr[0] = inb(base+MAC0);
  98                 gpRTL8139_Cards[ i ].MacAddr[1] = inb(base+MAC1);
  99                 gpRTL8139_Cards[ i ].MacAddr[2] = inb(base+MAC2);
 100                 gpRTL8139_Cards[ i ].MacAddr[3] = inb(base+MAC3);
 101                 gpRTL8139_Cards[ i ].MacAddr[4] = inb(base+MAC4);
 102                 gpRTL8139_Cards[ i ].MacAddr[5] = inb(base+MAC5);
 103
 104                 // Set VFS Node
 105                 gpRTL8139_Cards[ i ].Name[0] = '0'+i;
 106                 gpRTL8139_Cards[ i ].Name[1] = '\0';
 107                 gpRTL8139_Cards[ i ].Node.ImplPtr = &gpRTL8139_Cards[ i ];
 108                 gpRTL8139_Cards[ i ].Node.NumACLs = 0;
 109                 gpRTL8139_Cards[ i ].Node.CTime = now();
 110                 gpRTL8139_Cards[ i ].Node.Write = RTL8139_Write;
 111                 gpRTL8139_Cards[ i ].Node.Read = RTL8139_Read;
 112                 gpRTL8139_Cards[ i ].Node.IOCtl = RTL8139_IOCtl;
 113
 114                 Log_Log("RTL8139", "Card %i 0x%04x %02x:%02x:%02x:%02x:%02x:%02x",
 115                         i, base,
 116                         gpRTL8139_Cards[ i ].MacAddr[0], gpRTL8139_Cards[ i ].MacAddr[1],
 117                         gpRTL8139_Cards[ i ].MacAddr[2], gpRTL8139_Cards[ i ].MacAddr[3],
 118                         gpRTL8139_Cards[ i ].MacAddr[4], gpRTL8139_Cards[ i ].MacAddr[5]
 119                         );
 120
 121                 i ++;
 122         }
 123         return MODULE_ERR_OK;
 124 }