📄 linux下dm9000网卡驱动实验〈三〉 - orange - csdnblog.htm
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style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN style="mso-spacerun: yes">
</SPAN>dm9000_count++; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN style="mso-spacerun: yes"> </SPAN>/* Init
network device */ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN><SPAN style="mso-spacerun: yes"> </SPAN>dev =
init_etherdev(dev, 0); </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"></SPAN>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>/* Allocated board information structure */ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>irqline = 3;</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>db = (void *)(kmalloc(sizeof(*db), GFP_KERNEL|GFP_DMA));
</FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>memset(db, 0, sizeof(*db)); </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->priv = db;<SPAN style="mso-tab-count: 1">
</SPAN>/* link device and board info */ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>db->next_dev = dmfe_root_dev; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dmfe_root_dev = dev; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>db->ioaddr = iobase; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>db->io_data = iobase + 4; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"></SPAN>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>/* driver system function */ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->base_addr = iobase; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>//dev->irq = 68; //INT4 166;//irqline; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->open = &dmfe_open; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->hard_start_xmit = &dmfe_start_xmit; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->stop = &dmfe_stop; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->get_stats = &dmfe_get_stats; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->set_multicast_list = &dm9000_hash_table;
</FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dev->do_ioctl = &dmfe_do_ioctl; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US></SPAN>
<P> </P>
<P></P>
<P><FONT face="Times New Roman"></FONT> </P>
<P></P>
<P><FONT face="Times New Roman"></FONT> </P>
<P></P>
<P><FONT face="Times New Roman"></FONT> </P>
<P></P>
<P><FONT face="Times New Roman"></FONT> </P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US></SPAN>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: " new="" times="">在</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">dmfe_open(struct DEVICE
*dev)</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: " new=""
times="">中，申请了中断处理程序，然后调用了</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><FONT
face="Times New Roman">dmfe_init_dm9000(dev);</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: " new="" times="">初始化</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">DM9000</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: " new=""
times="">芯片。</SPAN></FONT></P>
<TABLE class=MsoTableGrid
style="BACKGROUND: #e6e6e6; BORDER-COLLAPSE: collapse; mso-yfti-tbllook: 480; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt"
cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR style="mso-yfti-irow: 0; mso-yfti-firstrow: yes; mso-yfti-lastrow: yes">
<TD
style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; BORDER-LEFT-COLOR: #ece9d8; BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; WIDTH: 426.1pt; BORDER-TOP-COLOR: #ece9d8; PADDING-TOP: 0cm; BACKGROUND-COLOR: transparent; BORDER-RIGHT-COLOR: #ece9d8"
vAlign=top width=568>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman">static int
dmfe_open(struct DEVICE *dev) </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman">{<SPAN
style="mso-tab-count: 1">
</SPAN></FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><FONT
face="Times New Roman">if(request_irq(dev->irq,
&dmfe_interrupt,SA_INTERRUPT/*SA_SHIRQ*/, </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 72pt; mso-char-indent-count: 8.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman">"DM9000
device",dev)) </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 2">
</SPAN>return -EAGAIN; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 36pt; mso-char-indent-count: 4.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman">/*
Initilize DM910X board */ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 27pt; mso-char-indent-count: 3.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><FONT face="Times New Roman"><SPAN
style="mso-tab-count: 1">
</SPAN>dmfe_init_dm9000(dev); </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"></SPAN>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><SPAN
style="mso-tab-count: 1"></SPAN><FONT
face="Times New Roman">netif_wake_queue(dev);<SPAN
style="mso-spacerun: yes">
</SPAN>//add by simon 2001.9.4 for kernel 2.4 </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0"><SPAN
lang=EN-US style="FONT-SIZE: 9pt"><SPAN
style="mso-tab-count: 1"></SPAN><FONT
face="Times New Roman">MOD_INC_USE_COUNT; </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman">}</FONT></SPAN></P>
<P></P>
<P><FONT face="Times New Roman"></FONT> </P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US></SPAN>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN
lang=EN-US><FONT face="Times New Roman">Stop()</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: " new=""
times="">方法停止网络驱动程序：</SPAN></FONT></P>
<TABLE class=MsoTableGrid
style="BACKGROUND: #e6e6e6; BORDER-COLLAPSE: collapse; mso-yfti-tbllook: 480; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt"
cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR style="mso-yfti-irow: 0; mso-yfti-firstrow: yes; mso-yfti-lastrow: yes">
<TD
style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; BORDER-LEFT-COLOR: #ece9d8; BORDER-BOTTOM-COLOR: #ece9d8; PADDING-BOTTOM: 0cm; WIDTH: 426.1pt; BORDER-TOP-COLOR: #ece9d8; PADDING-TOP: 0cm; BACKGROUND-COLOR: transparent; BORDER-RIGHT-COLOR: #ece9d8"
vAlign=top width=568>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman">static int
dmfe_stop(struct DEVICE *dev) </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 9pt"><FONT face="Times New Roman">{ </FONT></SPAN></P>
<P> </P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 2.0"><SPAN
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