/*****************************************************************************************
Copyright (c) 2002-2004 The UbixOS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are
permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of
conditions, the following disclaimer and the list of authors. Redistributions in binary
form must reproduce the above copyright notice, this list of conditions, the following
disclaimer and the list of authors in the documentation and/or other materials provided
with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
$Id: ne2k.c 54 2016-01-11 01:29:55Z reddawg $
*****************************************************************************************/
#include <isa/ne2k.h>
#include <isa/8259.h>
#include <sys/device.old.h>
#include <sys/io.h>
#include <sys/idt.h>
#include <lib/kmalloc.h>
#include <lib/kprintf.h>
#include <string.h>
#include <ubixos/kpanic.h>
#include <ubixos/vitals.h>
#include <ubixos/spinlock.h>
#include <assert.h>
static spinLock_t ne2k_spinLock = SPIN_LOCK_INITIALIZER;
static int dp_pkt2user(struct device *dev,int page,int length);
static void getblock(struct device *dev,int page,size_t offset,size_t size,void *dst);
static int dp_recv(struct device *);
static struct nicBuffer *ne2kBuffer = 0x0;
static struct device *mDev = 0x0;
asm(
".globl ne2kISR \n"
"ne2kISR: \n"
" pusha \n" /* Save all registers */
" call ne2kHandler \n"
" popa \n"
" iret \n" /* Exit interrupt */
);
/************************************************************************
Function: int ne2kInit(uInt32 ioAddr)
Description: This Function Will Initialize The Programmable Timer
Notes:
************************************************************************/
int ne2k_init() {
mDev = (struct device *)kmalloc(sizeof(struct device));
mDev->ioAddr = 0x280;
mDev->irq = 10;
setVector(&ne2kISR, mVec+10, dPresent + dInt + dDpl0);
irqEnable(10);
// kprintf("ne0 - irq: %i, ioAddr: 0x%X MAC: %X:%X:%X:%X:%X:%X\n",dev->irq,dev->ioAddr,dev->net->mac[0] & 0xFF,dev->net->mac[1] & 0xFF,dev->net->mac[2] & 0xFF,dev->net->mac[3] & 0xFF,dev->net->mac[4] & 0xFF,dev->net->mac[5] & 0xFF);
outportByte(mDev->ioAddr + NE_CMD, 0x21); // stop mode
outportByte(mDev->ioAddr + NE_DCR,0x29); // 0x29 data config reg
outportByte(mDev->ioAddr + NE_RBCR0,0x00); // LOW byte count (remote)
outportByte(mDev->ioAddr + NE_RBCR1,0x00); // HIGH byte count (remote)
outportByte(mDev->ioAddr + NE_RCR,0x3C); // receive config reg
outportByte(mDev->ioAddr + NE_TCR,0x02); // LOOP mode (temp)
outportByte(mDev->ioAddr + NE_PSTART,startPage); // 0x26 PAGE start
outportByte(mDev->ioAddr + NE_BNRY,startPage); // 0x26 BOUNDARY
outportByte(mDev->ioAddr + NE_PSTOP,stopPage); // 0x40 PAGE stop
outportByte(mDev->ioAddr + NE_ISR,0xFF); // interrupt status reg
outportByte(mDev->ioAddr + NE_IMR,0x0B);
outportByte(mDev->ioAddr + NE_CMD,0x61); // PAGE 1 regs
outportByte(mDev->ioAddr + DP_MAR0, 0xFF);
outportByte(mDev->ioAddr + DP_MAR1, 0xFF);
outportByte(mDev->ioAddr + DP_MAR2, 0xFF);
outportByte(mDev->ioAddr + DP_MAR3, 0xFF);
outportByte(mDev->ioAddr + DP_MAR4, 0xFF);
outportByte(mDev->ioAddr + DP_MAR5, 0xFF);
outportByte(mDev->ioAddr + DP_MAR6, 0xFF);
outportByte(mDev->ioAddr + DP_MAR7, 0xFF);
outportByte(mDev->ioAddr + DP_CURR, startPage + 1);
outportByte(mDev->ioAddr + NE_CMD, 0x20);
inportByte(mDev->ioAddr + DP_CNTR0); /* reset counters by reading */
inportByte(mDev->ioAddr + DP_CNTR1);
inportByte(mDev->ioAddr + DP_CNTR2);
outportByte(mDev->ioAddr + NE_TCR, 0x00);
outportByte(mDev->ioAddr + NE_CMD, 0x0);
outportByte(mDev->ioAddr + NE_DCR, 0x29);
kprintf("Initialized");
/* Return so we know everything went well */
return(0x0);
}
int PCtoNIC(struct device *dev,void *packet,int length) {
int i = 0x0;
uInt16 *packet16 = (uInt16 *)packet;
uInt8 *packet8 = (uInt8 *)packet;
uInt8 word16 = 0x1;
if ((inportByte(dev->ioAddr) & 0x04) == 0x04) {
kpanic("Device Not Ready\n");
}
assert(length);
if ((word16 == 1) && (length & 0x01)) {
length++;
}
outportByte(dev->ioAddr+EN0_RCNTLO,(length & 0xFF));
outportByte(dev->ioAddr+EN0_RCNTHI,(length >> 8));
outportByte(dev->ioAddr+EN0_RSARLO,0x0);
outportByte(dev->ioAddr+EN0_RSARHI,0x41);
outportByte(dev->ioAddr,E8390_RWRITE+E8390_START);
if (word16 != 0x0) {
for(i=0;i<length/2;i++){
outportWord(dev->ioAddr + NE_DATAPORT,packet16[i]);
}
}
else {
for(i=0;i<length;i++){
outportByte(dev->ioAddr + NE_DATAPORT,packet8[i]);
}
}
for (i = 0;i<=100;i++) {
if ((inportByte(dev->ioAddr+EN0_ISR) & 0x40) == 0x40) {
break;
}
}
outportByte(dev->ioAddr+EN0_ISR,0x40);
outportByte(dev->ioAddr+EN0_TPSR,0x41);//ei_local->txStartPage);
outportByte(dev->ioAddr+0x05,(length & 0xFF));
outportByte(dev->ioAddr+0x06,(length >> 8));
outportByteP(dev->ioAddr,0x26);
//kprintf("SENT\n");
return(length);
}
int NICtoPC(struct device *dev,void *packet,int length,int nic_addr) {
int i = 0x0;
uInt16 *packet16 = (uInt16 *)packet;
assert(length);
if (length & 0x01)
length++;
outportByte(dev->ioAddr+EN0_RCNTLO,(length & 0xFF));
outportByte(dev->ioAddr+EN0_RCNTHI,(length >> 8));
outportByte(dev->ioAddr+EN0_RSARLO,nic_addr & 0xFF);
outportByte(dev->ioAddr+EN0_RSARHI,nic_addr >> 8);
outportByte(dev->ioAddr,0x0A);
for(i=0;i<length/2;i++){
packet16[i] = inportWord(dev->ioAddr + NE_DATAPORT);
}
outportByte(dev->ioAddr+EN0_ISR,0x40);
return(length);
}
void ne2kHandler() {
uInt16 isr = 0x0;
uInt16 status = 0x0;
irqDisable(10);
outportByte(mPic, eoi);
outportByte(sPic, eoi);
asm("sti");
isr = inportByte(mDev->ioAddr + NE_ISR);
if ((isr & 0x02) == 0x02) {
outportByte(mDev->ioAddr + NE_ISR, 0x0A);
status = inportByte(0x280 + NE_TPSR);
}
if ((isr & 0x01) == 0x01) {
if (dp_recv(mDev)) {
kprintf("Error Getting Packet\n");
}
outportByte(mDev->ioAddr + NE_ISR, 0x05);
}
outportByte(mDev->ioAddr + NE_IMR,0x0);
outportByte(mDev->ioAddr + NE_IMR,0x0B);
asm("cli");
irqEnable(10);
return;
}
static int dp_recv(struct device *dev) {
dp_rcvhdr_t header;
unsigned int pageno = 0x0, curr = 0x0, next = 0x0;
int packet_processed = 0x0, r = 0x0;
uInt16 eth_type = 0x0;
uInt32 length = 0x0;
pageno = inportByte(dev->ioAddr + NE_BNRY) + 1;
if (pageno == stopPage) pageno = startPage;
do {
outportByte(dev->ioAddr + NE_CMD, 0x40);
curr = inportByte(dev->ioAddr + NE_CURRENT);
outportByte(dev->ioAddr, 0x0);
if (curr == pageno) break;
getblock(dev, pageno, (size_t)0, sizeof(header), &header);
getblock(dev, pageno, sizeof(header) + 2*sizeof(ether_addr_t), sizeof(eth_type), ð_type);
length = (header.dr_rbcl | (header.dr_rbch << 8)) - sizeof(dp_rcvhdr_t);
next = header.dr_next;
//kprintf("length: [0x%X:0x%X:0x%X]\n",header.dr_next,header.dr_status,length);
if (length < 60 || length > 1514) {
kprintf("dp8390: packet with strange length arrived: %d\n",length);
next= curr;
}
else if (next < startPage || next >= stopPage) {
kprintf("dp8390: strange next page\n");
next= curr;
}
else if (header.dr_status & RSR_FO) {
kpanic("dp8390: fifo overrun, resetting receive buffer\n");
next = curr;
}
else if (header.dr_status & RSR_PRX) {
r = dp_pkt2user(dev, pageno, length);
if (r != OK) {
kprintf("FRUIT");
return(0x0);
}
packet_processed = 0x1;
}
if (next == startPage)
outportByte(dev->ioAddr + NE_BNRY, stopPage - 1);
else
outportByte(dev->ioAddr + NE_BNRY, next - 1);
pageno = next;
} while (packet_processed == 0x0);
return(0x0);
}
static void getblock(struct device *dev,int page,size_t offset,size_t size,void *dst) {
uInt16 *ha = 0x0;
int i = 0x0;
ha = (uInt16 *) dst;
offset = page * DP_PAGESIZE + offset;
outportByte(dev->ioAddr + NE_RBCR0, size & 0xFF);
outportByte(dev->ioAddr + NE_RBCR1, size >> 8);
outportByte(dev->ioAddr + EN0_RSARLO, offset & 0xFF);
outportByte(dev->ioAddr + EN0_RSARHI, offset >> 8);
outportByte(dev->ioAddr + NE_CMD, E8390_RREAD | E8390_START);
size /= 2;
for (i= 0; i<size; i++)
ha[i]= inportWord(dev->ioAddr + NE_DATAPORT);
outportByte(dev->ioAddr+EN0_ISR,0x40);
}
static int dp_pkt2user(struct device *dev,int page,int length) {
int last = 0x0;
struct nicBuffer *tmpBuf = 0x0;
last = page + (length - 1) / DP_PAGESIZE;
if (last >= stopPage) {
kprintf("FOOK STOP PAGE!!!");
}
else {
tmpBuf = ne2kAllocBuffer(length);
NICtoPC(dev,tmpBuf->buffer,length,page * DP_PAGESIZE + sizeof(dp_rcvhdr_t));
}
return(OK);
}
struct nicBuffer *ne2kAllocBuffer(int length) {
struct nicBuffer *tmpBuf = 0x0;
spinLock(&ne2k_spinLock);
if (ne2kBuffer == 0x0) {
ne2kBuffer = (struct nicBuffer *)kmalloc(sizeof(struct nicBuffer));
ne2kBuffer->next = 0x0;
ne2kBuffer->length = length;
ne2kBuffer->buffer = (char *)kmalloc(length);
spinUnlock(&ne2k_spinLock);
return(ne2kBuffer);
}
else {
for (tmpBuf = ne2kBuffer;tmpBuf->next != 0x0;tmpBuf = tmpBuf->next);
tmpBuf->next = (struct nicBuffer *)kmalloc(sizeof(struct nicBuffer));
tmpBuf = tmpBuf->next;
tmpBuf->next = 0x0;
tmpBuf->length = length;
tmpBuf->buffer = (char *)kmalloc(length);
spinUnlock(&ne2k_spinLock);
return(tmpBuf);
}
spinUnlock(&ne2k_spinLock);
return(0x0);
}
struct nicBuffer *ne2kGetBuffer() {
struct nicBuffer *tmpBuf = 0x0;
if (ne2k_spinLock == 0x1)
return(0x0);
tmpBuf = ne2kBuffer;
if (ne2kBuffer != 0x0)
ne2kBuffer = ne2kBuffer->next;
return(tmpBuf);
}
void ne2kFreeBuffer(struct nicBuffer *buf) {
kfree(buf->buffer);
kfree(buf);
return;
}
/***
$Log: ne2k.c,v $
Revision 1.1.1.1 2006/06/01 12:46:12 reddawg
ubix2
Revision 1.2 2005/10/12 00:13:37 reddawg
Removed
Revision 1.1.1.1 2005/09/26 17:24:02 reddawg
no message
Revision 1.24 2004/09/28 21:47:56 reddawg
Fixed deadlock now safe to use in bochs
Revision 1.23 2004/09/16 22:35:28 reddawg
Demo Release
Revision 1.22 2004/09/15 21:25:33 reddawg
Fixens
Revision 1.21 2004/09/11 19:15:37 reddawg
here you go irq 10 io 240 for your ne2k nic
Revision 1.20 2004/09/07 22:26:04 reddawg
synced in
Revision 1.19 2004/09/07 21:54:38 reddawg
ok reverted back to old scheduling for now....
Revision 1.18 2004/09/06 15:13:25 reddawg
Last commit before FreeBSD 6.0
Revision 1.17 2004/08/01 20:40:45 reddawg
Net related fixes
Revision 1.16 2004/07/28 22:23:02 reddawg
make sure it still works before I goto bed
Revision 1.15 2004/07/17 17:04:47 reddawg
ne2k: added assert hopefully it will help me solve this dma size 0 random error
Revision 1.14 2004/07/14 12:03:50 reddawg
ne2k: ne2kInit to ne2k_init
Changed Startup Routines
Revision 1.13 2004/06/04 10:19:42 reddawg
notes: we compile again, thank g-d anyways i was about to cry
Revision 1.12 2004/05/21 12:48:22 reddawg
Cleaned up
Revision 1.11 2004/05/19 04:07:42 reddawg
kmalloc(size,pid) no more it is no kmalloc(size); the way it should of been
Revision 1.10 2004/05/10 02:23:24 reddawg
Minor Changes To Source Code To Prepare It For Open Source Release
END
***/
