jiurl键盘驱动 3.htm

JIURL键盘驱动

      kbdclass 处理输入数据的函数）取走数据之后，i8042prt 的输入数据队列的 DataOut 相应后移，InputCount 
      相应减少。<BR><BR>kbdclass 处理输入数据的函数中，满足那个应用层发来的等着读数据的 IRP。<BR>当 IRP 
      要求读的数据的大小，大于等于，i8042prt的输入数据队列中的数据时，IRP 直接从 
      i8042prt的输入数据队列中，读出所有输入数据，不使用kbdclass的输入数据队列。大多数情况下都是这样。<BR>当 IRP 
      要求读的数据的大小，小于，i8042prt的输入数据队列中的数据时，IRP 直接从 i8042prt的输入数据队列中，读出它所要求的大小，然后这个 
      IRP 被完成。i8042prt的输入数据队列中剩余的数据，被放入kbdclass的输入数据队列中。当应用层发来下一个读数据的 IRP 时，那个 
      IRP 将直接从 kbdclass 的输入数据队列中，读取数据，不需要等待。<BR><BR>&nbsp;&nbsp;&nbsp; 
      键盘驱动各层的设备对象是在初始化过程中创建的。键盘驱动设备栈是在初始化过程中构造的。键盘中断是在初始化过程中连接的。kbdclass 
      处理输入数据的回调函数的入口地址，是在初始化过程中告诉 i8042prt的，i8042prt把这个入口地址保存起来。i8042prt 和 
      kbdclass 的输入数据队列是在初始化过程中分配的内存。他们的 InputData , DataIn , DataOut , DataEnd , 
      InputCount 在初始化的时候设置的初值。<BR><BR>详细的键盘驱动对键盘按键的处理，在以后讨论。<BR><BR><BR><B>6 
      键盘驱动的初始化</B><BR><BR>6.1 键盘驱动初始化调试信息<BR><BR>以下是使用 WinDbg 
      获得的调试版键盘驱动在初始化过程中的调试打印的输出。<BR>符号 [注释] 后的内容，是我加的简单注释。<BR>以 jiurl 
      开头的语句，是我自己在 kbdclass 中加的调试打印语句。 
      <P align=center><IMG src="JIURL键盘驱动 3.files/init1.gif" border=0> 
      <P>[注释] i8042prt!DriverEntry<BR>8042: I8xServiceParameters: \Parameters 
      path is 
      \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\i8042prt\Parameters<BR>8042: 
      breaking on SysRq<BR>8042: I8xServiceParameters results..<BR>8042: Debug 
      flags are 0x88888808, Isr Debug flags are 0x0<BR>8042: Interrupts are not 
      shared<BR>8042: StallMicroseconds = 50<BR>8042: ResendIterations = 
      3<BR>8042: PollingIterations = 12000<BR>8042: PollingTerationsMaximum = 
      12000<BR>8042: DriverEntry (0x0)&nbsp;<BR><BR>[注释] 
      kbdclass!DriverEntry<BR>jiurl DriverEntry<BR>KBDCLASS-KbdConfiguration: 
      parameters path is 
      \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\kbdclass\Parameters<BR>KBDCLASS-KbdConfiguration: 
      Keyboard class base name = KeyboardClass<BR>KBDCLASS-KbdConfiguration: 
      KeyboardInputDataQueueLength = 0x4b0<BR>KBDCLASS-KbdConfiguration: 
      MaximumPortsServiced = 3<BR>KBDCLASS-KbdConfiguration: Connection Type = 
      1<BR>jiurl 
      KbdDeterminePortsServiced<BR>KBDCLASS-KbdDeterminePortsServiced: 
      RtlQueryRegistryValues failed with 
      0xc0000034<BR>KBDCLASS-KeyboardClassInitialize: Will service 0 port 
      devices<BR>KBDCLASS-KeyboardClassInitialize: exit<BR><BR>[注释] 
      i8042prt!I8xAddDevice<BR>8042: enter Add Device&nbsp;<BR>8042: Add Device 
      (0x0)<BR><BR>[注释] kbdclass!KeyboardAddDevice<BR>jiurl 
      KeyboardAddDevice<BR>jiurl 
      KbdCreateClassObject<BR>KBDCLASS-KbdCreateClassObject: 
      enter<BR>KBDCLASS-KbdCreateClassObject: Creating device object named 
      \Device\KeyboardClass0<BR>jiurl 
      KbdInitializeDataQueue<BR>KBDCLASS-KbdInitializeDataQueue: 
      enter<BR>KBDCLASS-KbdInitializeDataQueue: 
      exit<BR>KBDCLASS-KbdCreateClassObject: exit<BR>jiurl 
      KeyboardQueryDeviceKey<BR>jiurl KeyboardQueryDeviceKey<BR>jiurl 
      KeyboardQueryDeviceKey<BR>jiurl KeyboardAddDeviceEx<BR>jiurl 
      KbdSendConnectRequest<BR>KBDCLASS-KbdSendConnectRequest: 
      enter<BR><BR>8042: IOCTL: enter<BR>8042: IOCTL: keyboard 
      connect<BR><BR>jiurl KeyboardClassPassThrough<BR><BR>8042: IOCTL: 
      enter<BR>8042: hook keyboard received!<BR>8042: IOCTL: exit 
      (0x0)<BR><BR>8042: result of sending 0xb3fc3 was 0x0<BR>8042: IOCTL: exit 
      (0x0)<BR><BR>KBDCLASS-KbdSendConnectRequest: 
      exit<BR><BR>KBDCLASS-KeyboardClassInitialize: Stored 
      \Device\KeyboardClass0 in DeviceMap<BR><BR>[注释] IRP_MJ_PNP 
      IRP_MN_QUERY_LEGACY_BUS_INFORMATION<BR>jiurl KeyboardPnP<BR><BR>8042: 
      I8xPnP (kb), enter (min func=0x18)<BR>8042: I8xPnP (kb) exit 
      (status=0xc00000bb)<BR><BR>[注释] ps/2 鼠标的调试信息，我们不关心<BR>8042: enter Add 
      Device&nbsp;<BR>8042: Add Device (0x0)<BR>8042: IOCTL: enter<BR>8042: 
      IOCTL: mouse connect<BR>8042: IOCTL: enter<BR>8042: hook mouse 
      received!<BR>8042: Mou Hook Routine 0xf91ff2fa<BR>8042: IOCTL: exit 
      (0x0)<BR>8042: result of sending 0xf3fc3 was 0x0<BR>8042: IOCTL: exit 
      (0x0)<BR>8042: I8xPnP (mou), enter (min func=0x18)<BR>8042: I8xPnP (mou) 
      exit (status=0xc00000bb)<BR><BR><BR>[注释] IRP_MJ_PNP 
      IRP_MN_FILTER_RESOURCE_REQUIREMENTS<BR>jiurl KeyboardPnP<BR><BR>8042: 
      I8xPnP (kb), enter (min func=0xd)<BR>8042: Received 
      IRP_MN_FILTER_RESOURCE_REQUIREMENTS for kb<BR>8042: option = 0x1, flags = 
      0x11<BR>8042: Saw port [0x00000000 00000060] - [0x00000000 
      00000060]<BR>8042: option = 0x1, flags = 0x11<BR>8042: Saw port 
      [0x00000000 00000064] - [0x00000000 00000064]<BR>8042: I8xPnP (kb) exit 
      (status=0x0)<BR><BR>[注释] ps/2 鼠标的调试信息，我们不关心<BR>8042: I8xPnP (mou), enter 
      (min func=0xd)<BR>8042: Received IRP_MN_FILTER_RESOURCE_REQUIREMENTS for 
      mouse<BR>8042: I8xPnP (mou) exit (status=0x0)<BR><BR>[注释] IRP_MJ_PNP 
      IRP_MN_START_DEVICE<BR>jiurl KeyboardPnP<BR>jiurl 
      KeyboardSendIrpSynchronously<BR>8042: I8xPnP (kb), enter (min 
      func=0x0)<BR>8042: I8xKeyboardStartDevice, enter<BR>8042: port is 
      io.<BR>8042: port is io.<BR>8042: Keyboard interrupt config 
      --<BR>NonSharable, Latched, Irq = 0xb3<BR>8042: Using default keyboard 
      type<BR>8042: Keyboard device specific data --<BR>Type = 4, Subtype = 0, 
      Initial LEDs = 0x0<BR>8042: I8xKeyboardServiceParameters 
      results..<BR>8042: PollStatusIterations = 12000<BR>8042: PowerCapabilities 
      = 0x0<BR>8042: I8xServiceCrashDump: crashdump path is 
      \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\i8042prt\Crashdump<BR>8042: 
      I8xServiceCrashDump: RtlQueryRegistryValues failed with 
      0xc0000034<BR>8042: I8xServiceCrashDump: Dump1Keys = 0<BR>8042: 
      I8xServiceCrashDump: Dump2Key = 0<BR>8042: I8xInitializeDataQueue: 
      enter<BR>8042: I8xInitializeDataQueue: keyboard<BR>8042: 
      I8xInitializeDataQueue: exit<BR>8042: skipping init until mouse<BR>8042: 
      I8xKeyboardStartDevice successful<BR>8042: I8xKeyboardStartDevice exit 
      (0x0)<BR>jiurl KbdSyncComplete<BR>8042: I8xPnP (kb) exit 
      (status=0x0)<BR>jiurl KeyboardSendIrpSynchronously<BR>8042: I8xPnP (kb), 
      enter (min func=0x9)<BR>jiurl KbdSyncComplete<BR>8042: I8xPnP (kb) exit 
      (status=0x0)<BR><BR>[注释] IRP_MJ_PNP IRP_MN_QUERY_CAPABILITIES<BR>jiurl 
      KeyboardPnP<BR>8042: I8xPnP (kb), enter (min func=0x9)<BR>8042: I8xPnP 
      (kb) exit (status=0x0)<BR><BR>[注释] IRP_MJ_PNP 
      IRP_MN_QUERY_PNP_DEVICE_STATE<BR>jiurl KeyboardPnP<BR>jiurl 
      KeyboardSendIrpSynchronously<BR>8042: I8xPnP (kb), enter (min 
      func=0x14)<BR>jiurl KbdSyncComplete<BR>8042: I8xPnP (kb) exit 
      (status=0x0)<BR><BR>[注释] IRP_MJ_PNP IRP_MN_QUERY_DEVICE_RELATIONS<BR>jiurl 
      KeyboardPnP<BR>8042: I8xPnP (kb), enter (min func=0x7)<BR>8042: I8xPnP 
      (kb) exit (status=0x0)<BR><BR>[注释] 鼠标的 IRP_MJ_PNP 
      IRP_MN_START_DEVICE<BR>8042: I8xPnP (mou), enter (min func=0x0)<BR>8042: 
      I8xMouseStartDevice, enter<BR>8042: Mouse interrupt config 
      --<BR>NonSharable, Latched, Irq = 0x52<BR>8042: results from services 
      key:<BR>mouse queue length = 100<BR>number of buttons = 0<BR>sample rate = 
      60<BR>resolution = 3<BR>synch tick count = 10000000<BR>wheel detection = 
      1<BR>detection timeout = 0<BR>intiailize polled = 0<BR>reset stall time = 
      1000<BR>8042: results from devnode key:<BR>mouse queue length = 
      100<BR>number of buttons = 0<BR>sample rate = 60<BR>resolution = 
      3<BR>synch tick count = 20000000<BR>wheel detection = 2<BR>initialize 
      polled = 0<BR>detection timeout = 1500<BR>8042: wheel id: MSH0002<BR>8042: 
      wheel id: MSH0005<BR>8042: wheel id: MSH0010<BR>8042: 
      I8xMouseServiceParameters results..<BR>8042: EnableWheelDetection = 
      0x2<BR>8042: MouseDataQueueSize = 0x960<BR>8042: NumberOfButtons = 
      2<BR>8042: SampleRate = 60<BR>8042: MouseResolution = 3<BR>8042: 
      MouseResetStallTime = 1000<BR>8042: WheelDetectionTimeout = 96<BR>8042: 
      MouseSynchIn100ns = 0x80<BR>8042: I8xInitializeDataQueue: enter<BR>8042: 
      I8xInitializeDataQueue: mouse<BR>8042: I8xInitializeDataQueue: 
      exit<BR><BR>[注释] i8042prt!I8xMouseStartDevice-&gt; 
      I8xMouseInitializeHardware-&gt; [未完]<BR>[接上] 
      I8xInitializeHardwareAtBoot-&gt; I8xSanityCheckResources<BR>8042: 
      NonSharable, Ports (#0) 0x60 - 0x60<BR>8042: NonSharable, Ports (#1) 0x64 
      - 0x64<BR><BR>[注释] i8042prt!I8xMouseStartDevice-&gt; 
      I8xMouseInitializeHardware-&gt; [未完]<BR>[接上] 
      I8xInitializeHardwareAtBoot-&gt; I8xToggleInterrupts(FALSE)<BR>8042: 
      I8xToggleInterrupts(FALSE), enter<BR><BR>8042: 
      I8xTransmitControllerCommand: enter<BR>8042: I8xGetControllerCommand: 
      enter<BR>8042: I8xPutBytePolled: enter<BR>8042: I8xDrainOutputBuffer: 
      enter<BR>8042: I8xDrainOutputBuffer: exit<BR>8042: I8xPutBytePolled: 
      sending 0x20 to command port<BR>8042: I8xPutBytePolled: exit<BR>8042: 
      I8xGetBytePolled: enter<BR>8042: I8xGetBytePolled: 8042 
      controller<BR>8042: I8xGetBytePolled: exit with Byte 0x47<BR>8042: 
      I8xGetControllerCommand: exit<BR>8042: I8xTransmitControllerCommand: 
      current CCB 0x47<BR>8042: I8xPutControllerCommand: enter<BR>8042: 
      I8xPutBytePolled: enter<BR>8042: I8xDrainOutputBuffer: enter<BR>8042: 
      I8xDrainOutputBuffer: exit<BR>8042: I8xPutBytePolled: sending 0x60 to 
      command port<BR>8042: I8xPutBytePolled: exit<BR>8042: 
      I8xPutControllerCommand: exit<BR>8042: I8xPutBytePolled: enter<BR>8042: 
      I8xDrainOutputBuffer: enter<BR>8042: I8xDrainOutputBuffer: exit<BR>8042: 
      I8xPutBytePolled: sending 0x44 to data port<BR>8042: I8xPutBytePolled: 
      exit<BR>8042: I8xTransmitControllerCommand: new CCB 0x44<BR>8042: 
      I8xGetControllerCommand: enter<BR>8042: I8xPutBytePolled: enter<BR>8042: 
      I8xDrainOutputBuffer: enter<BR>8042: I8xDrainOutputBuffer: exit<BR>8042: 
      I8xPutBytePolled: sending 0x20 to command port<BR>8042: I8xPutBytePolled: 
      exit<BR>8042: I8xGetBytePolled: enter<BR>8042: I8xGetBytePolled: 8042 
      controller<BR>8042: I8xGetBytePolled: exit with Byte 0x44<BR>8042: 
      I8xGetControllerCommand: exit<BR>8042: I8xTransmitControllerCommand: 
      exit<BR><BR>[注释] i8042prt!I8xMouseStartDevice-&gt; 
      I8xMouseInitializeHardware-&gt; [未完]<BR>[接上] 
      I8xInitializeHardwareAtBoot-&gt; I8xInitializeHardware<BR>8042: 
      I8xInitializeHardware: enter<BR><BR>8042: I8xDrainOutputBuffer: 
      enter<BR>8042: I8xDrainOutputBuffer: exit<BR>8042: I8xDrainOutputBuffer: 
      enter<BR>8042: I8xDrainOutputBuffer: exit<BR><BR>[注释] 
      i8042prt!I8xMouseStartDevice-&gt; I8xMouseInitializeHardware-&gt; 
      [未完]<BR>[接上] I8xInitializeHardwareAtBoot-&gt; I8xInitializeHardware-&gt; 
      I8xInitializeKeyboard<BR>8042: I8xInitializeKeyboard, enter<BR><BR>8042: 
      I8xPutBytePolled: enter<BR>8042: I8xDrainOutputBuffer: enter<BR>8042: 
      I8xDrainOutputBuffer: exit<BR>8042: I8xPutBytePolled: sending 0xff to data 
      port<BR>8042: I8xPutBytePolled: waiting for ACK<BR>8042: I8xGetBytePolled: 
      enter<BR>8042: I8xGetBytePolled: keyboard<BR>8042: I8xGetBytePolled: exit 
      with Byte 0xfa<BR>8042: I8xPutBytePolled: got ACK<BR>8042: 
      I8xPutBytePolled: exit<BR>8042: I8xGetBytePolled: enter<BR>8042: 
      I8xGetBytePolled: keyboard<BR>8042: I8xGetBytePolled: exit with Byte 
      0xaa<BR><BR>8042: I8xTransmitControllerCommand: enter<BR>8042: 
      I8xGetControllerCommand: enter<BR>8042: I8xPutBytePolled: enter<BR>8042: 
      I8xDrainOutputBuffer: enter<BR>8042: I8xDrainOutputBuffer: exit<BR>8042: 
      I8xPutBytePolled: sending 0x20 to command port<BR>8042: I8xPutBytePolled: 
      exit<BR>8042: I8xGetBytePolled: enter<BR>8042: I8xGetBytePolled: 8042 
      controller<BR>8042: I8xGetBytePolled: exit with Byte 0x44<BR>8042: