Modules/Network/RTL8139/main.c

   1 /*
   2  * Acess2 RTL8139 Driver
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * main.c - Driver Core
   6  */
   7 #define DEBUG   0
   8 #define VERSION ((0<<8)|50)
   9 #include <acess.h>
  10 #include <modules.h>
  11 #include <fs_devfs.h>
  12 #include <drv_pci.h>
  13 #include <tpl_drv_network.h>
  14
  15 // === CONSTANTS ===
  16 enum eRTL8139_Regs
  17 {
  18         MAC0, MAC1, MAC2,
  19         MAC3, MAC4, MAC5,
  20         MAR0    = 0x08,
  21         MAR1, MAR2, MAR3,
  22         MAR4, MAR5, MAR6, MAR7,
  23
  24         RBSTART = 0x30, //!< Recieve Buffer Start
  25         // ??, ??, ??, RST, RE, TE, ??, ??
  26         CMD     = 0x37,
  27         IMR     = 0x3C,
  28         ISR     = 0x3E,
  29
  30         RCR     = 0x44,
  31
  32         CONFIG1 = 0x52
  33 };
  34
  35 // === TYPES ===
  36 typedef struct sCard
  37 {
  38         Uint16  IOBase;
  39         Uint8   IRQ;
  40
  41          int    NumWaitingPackets;
  42
  43         void    *ReceiveBuffer;
  44         tPAddr  PhysReceiveBuffer;
  45
  46         char    Name[2];
  47         tVFS_Node       Node;
  48         Uint8   MacAddr[6];
  49 }       tCard;
  50
  51 // === PROTOTYPES ===
  52  int    RTL8139_Install(char **Options);
  53 char    *RTL8139_ReadDir(tVFS_Node *Node, int Pos);
  54 tVFS_Node       *RTL8139_FindDir(tVFS_Node *Node, const char *Filename);
  55  int    RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg);
  56 Uint64  RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
  57 Uint64  RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
  58 void    RTL8139_IRQHandler(int Num);
  59
  60 // === GLOBALS ===
  61 MODULE_DEFINE(0, VERSION, RTL8139, RTL8139_Install, NULL, NULL);
  62 tDevFS_Driver   gRTL8139_DriverInfo = {
  63         NULL, "RTL8139",
  64         {
  65         .NumACLs = 1,
  66         .ACLs = &gVFS_ACL_EveryoneRX,
  67         .Flags = VFS_FFLAG_DIRECTORY,
  68         .ReadDir = RTL8139_ReadDir,
  69         .FindDir = RTL8139_FindDir,
  70         .IOCtl = RTL8139_RootIOCtl
  71         }
  72 };
  73  int    giRTL8139_CardCount;
  74 tCard   *gpRTL8139_Cards;
  75
  76 // === CODE ===
  77 /**
  78  * \brief Installs the RTL8139 Driver
  79  */
  80 int RTL8139_Install(char **Options)
  81 {
  82          int    id = -1;
  83          int    i = 0;
  84         Uint16  base;
  85
  86         giRTL8139_CardCount = PCI_CountDevices( 0x10EC, 0x8139, 0 );
  87
  88         gpRTL8139_Cards = calloc( giRTL8139_CardCount, sizeof(tCard) );
  89
  90
  91         while( (id = PCI_GetDevice(0x10EC, 0x8139, 0, id)) != -1 )
  92         {
  93                 base = PCI_AssignPort( id, 0, 0x100 );
  94                 gpRTL8139_Cards[i].IOBase = base;
  95                 gpRTL8139_Cards[i].IRQ = PCI_GetIRQ( id );
  96
  97                 // Install IRQ Handler
  98                 IRQ_AddHandler(gpRTL8139_Cards[ k ].IRQ, RTL8136_IRQHandler);
  99
 100                 // Power on
 101                 outb( base + CONFIG1, 0x00 );
 102                 // Reset (0x10 to CMD)
 103                 outb( base + CMD, 0x10 );
 104
 105                 while( inb(base + CMD) & 0x10 ) ;
 106
 107                 // Allocate 3 pages below 4GiB for the recieve buffer (Allows 8k+16+1500)
 108                 gpRTL8139_Cards[i].ReceiveBuffer = MM_AllocDMA( 3, 32, &gpRTL8139_Cards[i].PhysReceiveBuffer );
 109                 // Set up recieve buffer
 110                 outl(base + RBSTART, (Uint32)gpRTL8139_Cards[i].PhysReceiveBuffer);
 111                 // Set IMR to Transmit OK and Receive OK
 112                 outw(base + IMR, 0x5);
 113
 114                 // Set recieve buffer size and recieve mask
 115                 outl(base + RCR, 0x0F);
 116
 117                 outb(base + CMD, 0x0C); // Recive Enable and Transmit Enable
 118
 119                 // Get the card's MAC address
 120                 gpRTL8139_Cards[ i ].MacAddr[0] = inb(base+MAC0);
 121                 gpRTL8139_Cards[ i ].MacAddr[1] = inb(base+MAC1);
 122                 gpRTL8139_Cards[ i ].MacAddr[2] = inb(base+MAC2);
 123                 gpRTL8139_Cards[ i ].MacAddr[3] = inb(base+MAC3);
 124                 gpRTL8139_Cards[ i ].MacAddr[4] = inb(base+MAC4);
 125                 gpRTL8139_Cards[ i ].MacAddr[5] = inb(base+MAC5);
 126
 127                 // Set VFS Node
 128                 gpRTL8139_Cards[ i ].Name[0] = '0'+i;
 129                 gpRTL8139_Cards[ i ].Name[1] = '\0';
 130                 gpRTL8139_Cards[ i ].Node.ImplPtr = &gpRTL8139_Cards[ i ];
 131                 gpRTL8139_Cards[ i ].Node.NumACLs = 0;
 132                 gpRTL8139_Cards[ i ].Node.CTime = now();
 133                 gpRTL8139_Cards[ i ].Node.Write = RTL8139_Write;
 134                 gpRTL8139_Cards[ i ].Node.Read = RTL8139_Read;
 135                 gpRTL8139_Cards[ i ].Node.IOCtl = RTL8139_IOCtl;
 136
 137                 Log_Log("RTL8139", "Card %i 0x%04x %02x:%02x:%02x:%02x:%02x:%02x",
 138                         i, base,
 139                         gpRTL8139_Cards[ i ].MacAddr[0], gpRTL8139_Cards[ i ].MacAddr[1],
 140                         gpRTL8139_Cards[ i ].MacAddr[2], gpRTL8139_Cards[ i ].MacAddr[3],
 141                         gpRTL8139_Cards[ i ].MacAddr[4], gpRTL8139_Cards[ i ].MacAddr[5]
 142                         );
 143
 144                 i ++;
 145         }
 146         return MODULE_ERR_OK;
 147 }
 148
 149 // --- Root Functions ---
 150 char *RTL8139_ReadDir(tVFS_Node *Node, int Pos)
 151 {
 152         return NULL;
 153 }
 154
 155 tVFS_Node *RTL8139_FindDir(tVFS_Node *Node, const char *Filename)
 156 {
 157         return NULL;
 158 }
 159
 160 int RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg)
 161 {
 162         return 0;
 163 }
 164
 165 // --- File Functions ---
 166 Uint64 RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
 167 {
 168         return 0;
 169 }
 170
 171 Uint64 RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
 172 {
 173         return 0;
 174 }
 175
 176 int RTL8139_IOCtl(tVFS_Node *Node, int ID, void *Arg)
 177 {
 178         return 0;
 179 }