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 (DWord)
  25         // 0x31, 0x32, 0x33
  26
  27         // ??, ??, ??, RST, RE, TE, ??, ??
  28         CMD     = 0x37,
  29         IMR     = 0x3C,
  30         ISR     = 0x3E,
  31
  32         RCR     = 0x44,
  33
  34         CONFIG1 = 0x52
  35 };
  36
  37 // === TYPES ===
  38 typedef struct sCard
  39 {
  40         Uint16  IOBase;
  41         Uint8   IRQ;
  42
  43          int    NumWaitingPackets;
  44
  45         void    *ReceiveBuffer;
  46         tPAddr  PhysReceiveBuffer;
  47
  48         char    Name[2];
  49         tVFS_Node       Node;
  50         Uint8   MacAddr[6];
  51 }       tCard;
  52
  53 // === PROTOTYPES ===
  54  int    RTL8139_Install(char **Options);
  55 char    *RTL8139_ReadDir(tVFS_Node *Node, int Pos);
  56 tVFS_Node       *RTL8139_FindDir(tVFS_Node *Node, const char *Filename);
  57  int    RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg);
  58 Uint64  RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
  59 Uint64  RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
  60 void    RTL8139_IRQHandler(int Num);
  61
  62 // === GLOBALS ===
  63 MODULE_DEFINE(0, VERSION, RTL8139, RTL8139_Install, NULL, NULL);
  64 tDevFS_Driver   gRTL8139_DriverInfo = {
  65         NULL, "RTL8139",
  66         {
  67         .NumACLs = 1,
  68         .ACLs = &gVFS_ACL_EveryoneRX,
  69         .Flags = VFS_FFLAG_DIRECTORY,
  70         .ReadDir = RTL8139_ReadDir,
  71         .FindDir = RTL8139_FindDir,
  72         .IOCtl = RTL8139_RootIOCtl
  73         }
  74 };
  75  int    giRTL8139_CardCount;
  76 tCard   *gpRTL8139_Cards;
  77
  78 // === CODE ===
  79 /**
  80  * \brief Installs the RTL8139 Driver
  81  */
  82 int RTL8139_Install(char **Options)
  83 {
  84          int    id = -1;
  85          int    i = 0;
  86         Uint16  base;
  87
  88         giRTL8139_CardCount = PCI_CountDevices( 0x10EC, 0x8139, 0 );
  89
  90         gpRTL8139_Cards = calloc( giRTL8139_CardCount, sizeof(tCard) );
  91
  92
  93         while( (id = PCI_GetDevice(0x10EC, 0x8139, 0, id)) != -1 )
  94         {
  95                 base = PCI_AssignPort( id, 0, 0x100 );
  96                 gpRTL8139_Cards[i].IOBase = base;
  97                 gpRTL8139_Cards[i].IRQ = PCI_GetIRQ( id );
  98
  99                 // Install IRQ Handler
 100                 IRQ_AddHandler(gpRTL8139_Cards[ k ].IRQ, RTL8136_IRQHandler);
 101
 102                 // Power on
 103                 outb( base + CONFIG1, 0x00 );
 104                 // Reset (0x10 to CMD)
 105                 outb( base + CMD, 0x10 );
 106
 107                 while( inb(base + CMD) & 0x10 ) ;
 108
 109                 // Allocate 3 pages below 4GiB for the recieve buffer (Allows 8k+16+1500)
 110                 gpRTL8139_Cards[i].ReceiveBuffer = MM_AllocDMA( 3, 32, &gpRTL8139_Cards[i].PhysReceiveBuffer );
 111                 // Set up recieve buffer
 112                 outl(base + RBSTART, (Uint32)gpRTL8139_Cards[i].PhysReceiveBuffer);
 113                 // Set IMR to Transmit OK and Receive OK
 114                 outw(base + IMR, 0x5);
 115
 116                 // Set recieve buffer size and recieve mask
 117                 outl(base + RCR, 0x0F);
 118
 119                 outb(base + CMD, 0x0C); // Recive Enable and Transmit Enable
 120
 121                 // Get the card's MAC address
 122                 gpRTL8139_Cards[ i ].MacAddr[0] = inb(base+MAC0);
 123                 gpRTL8139_Cards[ i ].MacAddr[1] = inb(base+MAC1);
 124                 gpRTL8139_Cards[ i ].MacAddr[2] = inb(base+MAC2);
 125                 gpRTL8139_Cards[ i ].MacAddr[3] = inb(base+MAC3);
 126                 gpRTL8139_Cards[ i ].MacAddr[4] = inb(base+MAC4);
 127                 gpRTL8139_Cards[ i ].MacAddr[5] = inb(base+MAC5);
 128
 129                 // Set VFS Node
 130                 gpRTL8139_Cards[ i ].Name[0] = '0'+i;
 131                 gpRTL8139_Cards[ i ].Name[1] = '\0';
 132                 gpRTL8139_Cards[ i ].Node.ImplPtr = &gpRTL8139_Cards[ i ];
 133                 gpRTL8139_Cards[ i ].Node.NumACLs = 0;
 134                 gpRTL8139_Cards[ i ].Node.CTime = now();
 135                 gpRTL8139_Cards[ i ].Node.Write = RTL8139_Write;
 136                 gpRTL8139_Cards[ i ].Node.Read = RTL8139_Read;
 137                 gpRTL8139_Cards[ i ].Node.IOCtl = RTL8139_IOCtl;
 138
 139                 Log_Log("RTL8139", "Card %i 0x%04x %02x:%02x:%02x:%02x:%02x:%02x",
 140                         i, base,
 141                         gpRTL8139_Cards[ i ].MacAddr[0], gpRTL8139_Cards[ i ].MacAddr[1],
 142                         gpRTL8139_Cards[ i ].MacAddr[2], gpRTL8139_Cards[ i ].MacAddr[3],
 143                         gpRTL8139_Cards[ i ].MacAddr[4], gpRTL8139_Cards[ i ].MacAddr[5]
 144                         );
 145
 146                 i ++;
 147         }
 148         return MODULE_ERR_OK;
 149 }
 150
 151 // --- Root Functions ---
 152 char *RTL8139_ReadDir(tVFS_Node *Node, int Pos)
 153 {
 154         if( Pos < 0 || Pos > giRTL8139_CardCount )      return NULL;
 155
 156         return strdup( gpRTL8139_Cards[Pos].Name );
 157 }
 158
 159 tVFS_Node *RTL8139_FindDir(tVFS_Node *Node, const char *Filename)
 160 {
 161         //TODO: It might be an idea to supprt >10 cards
 162         if(Filename[0] == '\0' || Filename[0] != '\0')  return NULL;
 163         if(Filename[0] < '0' || Filename[0] > '9')      return NULL;
 164         return &gpRTL8139_Cards[ Filename[0]-'0' ].Node;
 165 }
 166
 167 const char *csaRTL8139_RootIOCtls[] = {DRV_IOCTLNAMES, NULL};
 168 int RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg)
 169 {
 170         switch(ID)
 171         {
 172         BASE_IOCTLS(DRV_TYPE_NETWORK, "RTL8139", VERSION, csaRTL8139_RootIOCtls);
 173         }
 174         return 0;
 175 }
 176
 177 // --- File Functions ---
 178 Uint64 RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
 179 {
 180         return 0;
 181 }
 182
 183 Uint64 RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
 184 {
 185         return 0;
 186 }
 187
 188 const char *csaRTL8139_NodeIOCtls[] = {DRV_IOCTLNAMES, NULL};
 189 int RTL8139_IOCtl(tVFS_Node *Node, int ID, void *Arg)
 190 {
 191         switch(ID)
 192         {
 193         BASE_IOCTLS(DRV_TYPE_NETWORK, "RTL8139", VERSION, csaRTL8139_NodeIOCtls);
 194         }
 195         return 0;
 196 }