No.27814
作者：tubage
邮件：tubage21@elong.com
ID：11635
登陆：1次
文章数：3篇
最后登陆IP：61.186.110.246
最后登陆：2003/5/11 9:56:59
注册：2003/4/28 16:16:08
财富：109
发帖时间：2003/4/28 16:25:43
发贴者IP：61.186.109.145
标题：tubage:大家帮忙看一下
摘要：No.27814大家帮忙看一下 这是我用rtl8019as上网的程序 我想知道怎么样在这上面加TCP和UDP的程序进行解包和压包。可以的话请您发到我的邮箱tubage21@elong.com
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#include "rtlregs.h"
#define NIC_PAGE_SIZE 256
#define NIC_START_PAGE 0x40
#define NIC_STOP_PAGE 0x80
#define NIC_TX_PAGES 6
#define NIC_TX_BUFFERS 2
#define NIC_FIRST_TX_PAGE NIC_START_PAGE
#define NIC_FIRST_RX_PAGE (NIC_FIRST_TX_PAGE + NIC_TX_PAGES * NIC_TX_BUFFERS)
#define TX_PAGES 12
static void NicCompleteDma(void)
{
u_char i;
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD2);
for(i = 0; i <= 20; i++)
if(nic_read(NIC_PG0_ISR) & NIC_ISR_RDC)
break;
nic_write(NIC_PG0_ISR, NIC_ISR_RDC);
}
void NicRemovePacket(void)
{
struct nic_pkt_header_struct hdr;
u_short count;
u_char *buf;
u_char nextpg;
u_char bnry;
u_char curr;
u_short i;
u_char ict;
bnry = nic_read(NIC_PG0_BNRY) + 1;
if(bnry > = NIC_STOP_PAGE)
bnry = NIC_FIRST_RX_PAGE;
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD2 | NIC_CR_PS0);
curr = nic_read(NIC_PG1_CURR);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD2);
if(bnry == curr)
return;
nic_write(NIC_PG0_RBCR0, sizeof(struct nic_pkt_header_struct));
nic_write(NIC_PG0_RBCR1, 0);
nic_write(NIC_PG0_RSAR0, 0);
nic_write(NIC_PG0_RSAR1, bnry);
buf = (u_char *)&hdr;
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD0);
for(i = 0; i < sizeof(struct nic_pkt_header_struct); i++)
*buf++ = nic_read(NIC_IOPORT);
NicCompleteDma();
count = hdr.ph_size - sizeof(struct nic_pkt_header_struct);
nic_write(NIC_PG0_RBCR0, count);
nic_write(NIC_PG0_RBCR1, count > > 8);
nic_write(NIC_PG0_RSAR0, sizeof(struct nic_pkt_header_struct));
nic_write(NIC_PG0_RSAR1, bnry);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD0);
for(i = 0; i < count; i++)
ict = nic_read(NIC_IOPORT);
NicCompleteDma();
ict = ict;
nextpg = hdr.ph_nextpg - 1;
if(nextpg < NIC_FIRST_RX_PAGE)
nextpg = NIC_STOP_PAGE - 1;
nic_write(NIC_PG0_BNRY, nextpg);
}
unsigned int NicGetPacket(u_char *pkt1)
{
struct nic_pkt_header_struct hdr;
u_short count;
u_char *buf;
u_char nextpg;
u_char bnry;
u_char curr;
u_short i;
buf = (u_char *)&hdr;
bnry = nic_read(NIC_PG0_BNRY) + 1;
if(bnry > = NIC_STOP_PAGE)
bnry = NIC_FIRST_RX_PAGE;
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD2 | NIC_CR_PS0);
curr = nic_read(NIC_PG1_CURR);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD2);
if(bnry == curr)
return 0;
nic_write(NIC_PG0_RBCR0, sizeof(struct nic_pkt_header_struct));
nic_write(NIC_PG0_RBCR1, 0);
nic_write(NIC_PG0_RSAR0, 0);
nic_write(NIC_PG0_RSAR1, bnry);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD0);
for(i = 0; i < sizeof(struct nic_pkt_header_struct); i++)
*buf++ = nic_read(NIC_IOPORT);
NicCompleteDma();
count = hdr.ph_size - sizeof(struct nic_pkt_header_struct);
nic_write(NIC_PG0_RBCR0, count);
nic_write(NIC_PG0_RBCR1, count > > 8);
nic_write(NIC_PG0_RSAR0, sizeof(struct nic_pkt_header_struct));
nic_write(NIC_PG0_RSAR1, bnry);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD0);
for (i = 0; i < count; i++)
*pkt1++ = nic_read(NIC_IOPORT);
NicCompleteDma();
nextpg = hdr.ph_nextpg - 1;
if(nextpg < NIC_FIRST_RX_PAGE)
nextpg = NIC_STOP_PAGE - 1;
nic_write(NIC_PG0_BNRY, nextpg);
return count;
}
int NicPutPacket(u_char *data, u_short sz)
{
u_short i;
u_char *p;
u_char padding = 0;
u_short sz1=sz;
if(sz1 > = 0x0600) return -1;
if(sz1 < 60) {
padding = (u_char)(60 - sz1);
sz1 = 60;
}
nic_write(NIC_PG0_RBCR0, sz1);
nic_write(NIC_PG0_RBCR1, sz1 > > 8);
nic_write(NIC_PG0_RSAR0, 0);
nic_write(NIC_PG0_RSAR1, NIC_FIRST_TX_PAGE);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_RD1);
p = data;
for(i = 0; i < sz; i++)
nic_write(NIC_IOPORT, *p++);
for(i = 0; i < padding; i++)
nic_write(NIC_IOPORT, 0);
NicCompleteDma();
nic_write(NIC_PG0_TBCR0, (sz1 & 0xff));
nic_write(NIC_PG0_TBCR1, ((sz1 > > 8) & 0xff));
nic_write(NIC_PG0_TPSR, NIC_FIRST_TX_PAGE);
nic_write(NIC_CR, NIC_CR_STA | NIC_CR_TXP | NIC_CR_RD2);
return 0;
}
int NicInit(unsigned char *mac)
{
u_char i;
u_char j;
for(j = 0; j < 10; j++) {
if(nic_read(NIC_PG0_ISR) & NIC_ISR_RST)
break;
nic_write(NIC_RESET, nic_read(NIC_RESET));
for(i = 0; i < 255; i++) {
if(nic_read(NIC_PG0_ISR) & NIC_ISR_RST)
break;
}
}
nic_write(NIC_PG0_IMR, 0);
nic_write(NIC_PG0_ISR, 0xff);
nic_write(NIC_CR, NIC_CR_STP | NIC_CR_RD2 | NIC_CR_PS0 | NIC_CR_PS1);
nic_write(NIC_PG3_EECR, NIC_EECR_E ......
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