+/*
+ * Acess2 RTL8139 Driver
+ * - By John Hodge (thePowersGang)
+ */
+#define DEBUG 0
+#define VERSION ((0<<8)|50)
+#include <acess.h>
+#include <modules.h>
+#include <fs_devfs.h>
+#include <drv_pci.h>
+#include <tpl_drv_network.h>
+
+// === CONSTANTS ===
+enum eRTL8139_Regs
+{
+ MAC0, MAC1, MAC2,
+ MAC3, MAC4, MAC5,
+ MAR0 = 0x08,
+ MAR1, MAR2, MAR3,
+ MAR4, MAR5, MAR6, MAR7,
+
+ RBSTART = 0x30, //!< Recieve Buffer Start (DWord)
+ // 0x31, 0x32, 0x33
+
+ // ??, ??, ??, RST, RE, TE, ??, ??
+ CMD = 0x37,
+ IMR = 0x3C,
+ ISR = 0x3E,
+
+ RCR = 0x44,
+
+ CONFIG1 = 0x52
+};
+
+// === TYPES ===
+typedef struct sCard
+{
+ Uint16 IOBase;
+ Uint8 IRQ;
+
+ int NumWaitingPackets;
+
+ void *ReceiveBuffer;
+ tPAddr PhysReceiveBuffer;
+
+ char Name[2];
+ tVFS_Node Node;
+ Uint8 MacAddr[6];
+} tCard;
+
+// === PROTOTYPES ===
+ int RTL8139_Install(char **Options);
+char *RTL8139_ReadDir(tVFS_Node *Node, int Pos);
+tVFS_Node *RTL8139_FindDir(tVFS_Node *Node, const char *Filename);
+ int RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg);
+Uint64 RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
+Uint64 RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
+void RTL8139_IRQHandler(int Num);
+
+// === GLOBALS ===
+MODULE_DEFINE(0, VERSION, RTL8139, RTL8139_Install, NULL, NULL);
+tDevFS_Driver gRTL8139_DriverInfo = {
+ NULL, "RTL8139",
+ {
+ .NumACLs = 1,
+ .ACLs = &gVFS_ACL_EveryoneRX,
+ .Flags = VFS_FFLAG_DIRECTORY,
+ .ReadDir = RTL8139_ReadDir,
+ .FindDir = RTL8139_FindDir,
+ .IOCtl = RTL8139_RootIOCtl
+ }
+};
+ int giRTL8139_CardCount;
+tCard *gpRTL8139_Cards;
+
+// === CODE ===
+/**
+ * \brief Installs the RTL8139 Driver
+ */
+int RTL8139_Install(char **Options)
+{
+ int id = -1;
+ int i = 0;
+ Uint16 base;
+
+ giRTL8139_CardCount = PCI_CountDevices( 0x10EC, 0x8139, 0 );
+
+ gpRTL8139_Cards = calloc( giRTL8139_CardCount, sizeof(tCard) );
+
+
+ while( (id = PCI_GetDevice(0x10EC, 0x8139, 0, id)) != -1 )
+ {
+ base = PCI_AssignPort( id, 0, 0x100 );
+ gpRTL8139_Cards[i].IOBase = base;
+ gpRTL8139_Cards[i].IRQ = PCI_GetIRQ( id );
+
+ // Install IRQ Handler
+ IRQ_AddHandler(gpRTL8139_Cards[ k ].IRQ, RTL8136_IRQHandler);
+
+ // Power on
+ outb( base + CONFIG1, 0x00 );
+
+ // Reset (0x10 to CMD)
+ outb( base + CMD, 0x10 );
+ while( inb(base + CMD) & 0x10 ) ;
+
+ // Set up recieve buffer
+ // - Allocate 3 pages below 4GiB for the recieve buffer (Allows 8k+16+1500)
+ gpRTL8139_Cards[i].ReceiveBuffer = MM_AllocDMA( 3, 32, &gpRTL8139_Cards[i].PhysReceiveBuffer );
+ outl(base + RBSTART, (Uint32)gpRTL8139_Cards[i].PhysReceiveBuffer);
+ // Set IMR to Transmit OK and Receive OK
+ outw(base + IMR, 0x5);
+
+ // Set recieve buffer size and recieve mask
+ // - Bit 7 being unset tells the card to overflow the recieve buffer if needed
+ // (i.e. when the packet starts at the end of the bufffer, it overflows up
+ // to 1500 bytes)
+ outl(base + RCR, 0x0F);
+
+ // Recive Enable and Transmit Enable
+ outb(base + CMD, 0x0C);
+
+ // Get the card's MAC address
+ gpRTL8139_Cards[ i ].MacAddr[0] = inb(base+MAC0);
+ gpRTL8139_Cards[ i ].MacAddr[1] = inb(base+MAC1);
+ gpRTL8139_Cards[ i ].MacAddr[2] = inb(base+MAC2);
+ gpRTL8139_Cards[ i ].MacAddr[3] = inb(base+MAC3);
+ gpRTL8139_Cards[ i ].MacAddr[4] = inb(base+MAC4);
+ gpRTL8139_Cards[ i ].MacAddr[5] = inb(base+MAC5);
+
+ // Set VFS Node
+ gpRTL8139_Cards[ i ].Name[0] = '0'+i;
+ gpRTL8139_Cards[ i ].Name[1] = '\0';
+ gpRTL8139_Cards[ i ].Node.ImplPtr = &gpRTL8139_Cards[ i ];
+ gpRTL8139_Cards[ i ].Node.NumACLs = 0;
+ gpRTL8139_Cards[ i ].Node.CTime = now();
+ gpRTL8139_Cards[ i ].Node.Write = RTL8139_Write;
+ gpRTL8139_Cards[ i ].Node.Read = RTL8139_Read;
+ gpRTL8139_Cards[ i ].Node.IOCtl = RTL8139_IOCtl;
+
+ Log_Log("RTL8139", "Card %i 0x%04x %02x:%02x:%02x:%02x:%02x:%02x",
+ i, base,
+ gpRTL8139_Cards[ i ].MacAddr[0], gpRTL8139_Cards[ i ].MacAddr[1],
+ gpRTL8139_Cards[ i ].MacAddr[2], gpRTL8139_Cards[ i ].MacAddr[3],
+ gpRTL8139_Cards[ i ].MacAddr[4], gpRTL8139_Cards[ i ].MacAddr[5]
+ );
+
+ i ++;
+ }
+ return MODULE_ERR_OK;
+}
+
+// --- Root Functions ---
+char *RTL8139_ReadDir(tVFS_Node *Node, int Pos)
+{
+ if( Pos < 0 || Pos > giRTL8139_CardCount ) return NULL;
+
+ return strdup( gpRTL8139_Cards[Pos].Name );
+}
+
+tVFS_Node *RTL8139_FindDir(tVFS_Node *Node, const char *Filename)
+{
+ //TODO: It might be an idea to supprt >10 cards
+ if(Filename[0] == '\0' || Filename[0] != '\0') return NULL;
+ if(Filename[0] < '0' || Filename[0] > '9') return NULL;
+ return &gpRTL8139_Cards[ Filename[0]-'0' ].Node;
+}
+
+const char *csaRTL8139_RootIOCtls[] = {DRV_IOCTLNAMES, NULL};
+int RTL8139_RootIOCtl(tVFS_Node *Node, int ID, void *Arg)
+{
+ switch(ID)
+ {
+ BASE_IOCTLS(DRV_TYPE_NETWORK, "RTL8139", VERSION, csaRTL8139_RootIOCtls);
+ }
+ return 0;
+}
+
+// --- File Functions ---
+Uint64 RTL8139_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
+{
+ return 0;
+}
+
+Uint64 RTL8139_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
+{
+ return 0;
+}
+
+const char *csaRTL8139_NodeIOCtls[] = {DRV_IOCTLNAMES, NULL};
+int RTL8139_IOCtl(tVFS_Node *Node, int ID, void *Arg)
+{
+ switch(ID)
+ {
+ BASE_IOCTLS(DRV_TYPE_NETWORK, "RTL8139", VERSION, csaRTL8139_NodeIOCtls);
+ }
+ return 0;
+}
git.ucc.asn.au / tpg / acess2.git / commitdiff
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