IT博客-快乐生活，感受人生-最新评论http://www.cnitblog.com/yuhensong/CommentsRSS.aspxNew Life, Old Face <bgsound src=http://www.ht.com.cn/bbu/attachments/month_0510/kh0n_10.wma loop="-1">zh-cnTue, 20 Sep 2016 09:23:02 GMTTue, 20 Sep 2016 09:23:02 GMTcnblogsre: 各位：问一下，我用中文输入法编辑的时候，为什么屏幕老闪个不停？怎么解决？http://www.cnitblog.com/yuhensong/archive/2013/07/14/11779.html#87979人人Sun, 14 Jul 2013 07:00:00 GMThttp://www.cnitblog.com/yuhensong/archive/2013/07/14/11779.html#87979

人 2013-07-14 15:00 发表评论
]]>re: ARM uboot中的.ldshttp://www.cnitblog.com/yuhensong/archive/2012/11/19/86782.html#86783yuhenyuhenMon, 19 Nov 2012 08:31:00 GMThttp://www.cnitblog.com/yuhensong/archive/2012/11/19/86782.html#86783

yuhen 2012-11-19 16:31 发表评论
]]>re: [Win7]Powercfg 命令 http://www.cnitblog.com/yuhensong/archive/2012/06/10/80854.html#81127大牛网大牛网Sun, 10 Jun 2012 11:18:00 GMThttp://www.cnitblog.com/yuhensong/archive/2012/06/10/80854.html#81127

大牛网 2012-06-10 19:18 发表评论
]]>re: [Win7]Powercfg 命令 http://www.cnitblog.com/yuhensong/archive/2012/06/09/80854.html#81090火车时刻表火车时刻表Sat, 09 Jun 2012 15:07:00 GMThttp://www.cnitblog.com/yuhensong/archive/2012/06/09/80854.html#81090

火车时刻表 2012-06-09 23:07 发表评论
]]>re: 同事推荐的一首歌曲WhatIfShesAnAngelhttp://www.cnitblog.com/yuhensong/archive/2012/06/09/12694.html#81077艾尼艾尼Sat, 09 Jun 2012 03:34:00 GMThttp://www.cnitblog.com/yuhensong/archive/2012/06/09/12694.html#81077

艾尼 2012-06-09 11:34 发表评论
]]>re: 怎样写makefile文件http://www.cnitblog.com/yuhensong/archive/2010/10/01/11828.html#69377anchor89anchor89Fri, 01 Oct 2010 14:51:00 GMThttp://www.cnitblog.com/yuhensong/archive/2010/10/01/11828.html#69377

anchor89 2010-10-01 22:51 发表评论
]]>re: 关于ACPI table的基本概念和图示[未登录]http://www.cnitblog.com/yuhensong/archive/2010/06/28/62042.html#67073ericericMon, 28 Jun 2010 02:22:00 GMThttp://www.cnitblog.com/yuhensong/archive/2010/06/28/62042.html#67073F段是内存空间的F段，不是BIOS flash，但是的确是copy from BIOS flash
NVS内存是内存的一种类型，由bios声明，给OS看的

eric 2010-06-28 10:22 发表评论
]]>re: 关于ACPI table的基本概念和图示[未登录]http://www.cnitblog.com/yuhensong/archive/2010/06/24/62042.html#66994AllenAllenThu, 24 Jun 2010 13:25:00 GMThttp://www.cnitblog.com/yuhensong/archive/2010/06/24/62042.html#66994那具体的物理存储空间是 BIOS flash 吗？
还有那个NVS 内存指的是什么东东啊？
新手入门，请多指点，谢谢啦

Allen 2010-06-24 21:25 发表评论
]]>re: 下午作完presentation了http://www.cnitblog.com/yuhensong/archive/2009/11/25/12645.html#62815陳鴻昀陳鴻昀Wed, 25 Nov 2009 07:55:00 GMThttp://www.cnitblog.com/yuhensong/archive/2009/11/25/12645.html#62815//**********************************************************************
//** Demo code for PCI configuration space I/O access program **
//** By Lawrence 2009/11/20 **
//**********************************************************************
//**********************************************************************

#include "efi.h"
#include "efilib.h"

#define Not_Found_Me 0x00000000
#define Found_Me 0x00000001

static EFI_STATUS WaitForKeyOrReset(VOID)
{
EFI_STATUS Status;
EFI_INPUT_KEY key;
UINTN index;

for(;;) {
Status = ST->ConIn->ReadKeyStroke(ST->ConIn, &key);
if (Status == EFI_NOT_READY)
BS->WaitForEvent(1, &ST->ConIn->WaitForKey, &index);
else
break;
}
if (!EFI_ERROR(Status)) {
if (key.ScanCode == SCAN_ESC)
RT->ResetSystem(EfiResetCold, EFI_SUCCESS, 0, NULL);
}

return Status;
}

UINTN
AccessPciConfig (
IN EFI_PCI_IO_PROTOCOL *PCI_DEVICE_TARGET
)
{
UINT8 i;
UINTN PCI_ATTR[4];
UINT8 PCI_REG[4], pci_offset=0;

//get device attr
PCI_DEVICE_TARGET->GetLocation(PCI_DEVICE_TARGET,PCI_ATTR,PCI_ATTR+1,PCI_ATTR+2,PCI_ATTR+3);
if ((PCI_ATTR[1] == 0x00) && (PCI_ATTR[2] == 0x1e) && (PCI_ATTR[3] == 0x00)){
Print (L"Device found at BUS = %02x DEV= %02x FUN= %02x \n",PCI_ATTR[1],PCI_ATTR[2],PCI_ATTR[3]);
ST->ConOut->SetAttribute (ST->ConOut, EFI_TEXT_ATTR (EFI_GREEN, EFI_BLACK));
//print register value
for (i = 0;i < 4;i++)
{
PCI_DEVICE_TARGET->Pci.Read (PCI_DEVICE_TARGET,0,pci_offset,4,PCI_REG);
Print(L"Register0x%d value = %02x \n",i, PCI_REG[i]);
}
Print(L"\n");
ST->ConOut->SetAttribute (ST->ConOut, EFI_TEXT_ATTR (EFI_WHITE, EFI_BLACK));
return Found_Me;
}

return Not_Found_Me;
}

EFI_STATUS
InitializePciApplication (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE *Handle;
UINTN BufferSize, Result;
UINTN NoHandles, Index;
EFI_PCI_IO_PROTOCOL *PCI_DEVICE_TARGET;

//
// Initialize the Library.
//
InitializeLib (ImageHandle, SystemTable);
//
// Find the PCI driver
//
Handle = NULL;
BufferSize = 1;
do
{
if (Handle)
{
FreePool (Handle);
}

Handle = AllocatePool (BufferSize);
Status = BS->LocateHandle (ByProtocol, &PciIoProtocol, NULL, &BufferSize, Handle);

} while (Status == EFI_BUFFER_TOO_SMALL);
ASSERT (!EFI_ERROR(Status));

NoHandles = BufferSize / sizeof(EFI_HANDLE);
Index = 0;
ST->ConOut->ClearScreen (ST->ConOut);
Result = Not_Found_Me;
do
{
if(Index == NoHandles - 1)
Index=0;
else
Status = BS->HandleProtocol (Handle[Index], &PciIoProtocol, (VOID*)&PCI_DEVICE_TARGET);
Print(L"THIS IS DEVICE %d \n",Index);
if (!EFI_ERROR(Status))
{
Result = AccessPciConfig(PCI_DEVICE_TARGET);
//- Print(L"Again now Result is %x \n",Result);
}
Index++;
} while(Result == Not_Found_Me);

Print(L"Please hit any key to exit this image.");
WaitForSingleEvent (ST->ConIn->WaitForKey, 0);

return EFI_SUCCESS;
}

陳鴻昀 2009-11-25 15:55 发表评论
]]>re: 下午作完presentation了http://www.cnitblog.com/yuhensong/archive/2009/11/25/12645.html#62814陳鴻昀陳鴻昀Wed, 25 Nov 2009 07:54:00 GMThttp://www.cnitblog.com/yuhensong/archive/2009/11/25/12645.html#62814//**********************************************************************
//** Demo code for PCI configuration space I/O access program **
//** By Lawrence 2009/11/20 **
//**********************************************************************
//**********************************************************************

#include "efi.h"
#include "efilib.h"

#define Not_Found_Me 0x00000000
#define Found_Me 0x00000001

static EFI_STATUS WaitForKeyOrReset(VOID)
{
EFI_STATUS Status;
EFI_INPUT_KEY key;
UINTN index;

for(;;) {
Status = ST->ConIn->ReadKeyStroke(ST->ConIn, &key);
if (Status == EFI_NOT_READY)
BS->WaitForEvent(1, &ST->ConIn->WaitForKey, &index);
else
break;
}
if (!EFI_ERROR(Status)) {
if (key.ScanCode == SCAN_ESC)
RT->ResetSystem(EfiResetCold, EFI_SUCCESS, 0, NULL);
}

return Status;
}

UINTN
AccessPciConfig (
IN EFI_PCI_IO_PROTOCOL *PCI_DEVICE_TARGET
)
{
UINT8 i;
UINTN PCI_ATTR[4];
UINT8 PCI_REG[4], pci_offset=0;

//get device attr
PCI_DEVICE_TARGET->GetLocation(PCI_DEVICE_TARGET,PCI_ATTR,PCI_ATTR+1,PCI_ATTR+2,PCI_ATTR+3);
if ((PCI_ATTR[1] == 0x00) && (PCI_ATTR[2] == 0x1e) && (PCI_ATTR[3] == 0x00)){
Print (L"Device found at BUS = %02x DEV= %02x FUN= %02x \n",PCI_ATTR[1],PCI_ATTR[2],PCI_ATTR[3]);
ST->ConOut->SetAttribute (ST->ConOut, EFI_TEXT_ATTR (EFI_GREEN, EFI_BLACK));
//print register value
for (i = 0;i < 4;i++)
{
PCI_DEVICE_TARGET->Pci.Read (PCI_DEVICE_TARGET,0,pci_offset,4,PCI_REG);
Print(L"Register0x%d value = %02x \n",i, PCI_REG[i]);
}
Print(L"\n");
ST->ConOut->SetAttribute (ST->ConOut, EFI_TEXT_ATTR (EFI_WHITE, EFI_BLACK));
return Found_Me;
}

return Not_Found_Me;
}

陳鴻昀 2009-11-25 15:54 发表评论
]]>