Inheritance diagram for HostedKeyboard:
Collaboration diagram for HostedKeyboard:
Public Member Functions | |
| virtual void | initialise () |
| virtual void | setDebugState (bool enableDebugState) |
| virtual bool | getDebugState () |
| virtual char | getChar () |
| virtual char | getCharNonBlock () |
| virtual char | getLedState () |
| virtual void | setLedState (char state) |
Private Member Functions | |
| void | blocking (bool enable) |
Private Attributes | |
| bool | m_bDebugState |
| True if we're in debug state. | |
Additional Inherited Members | |
| Public Types inherited from Keyboard | |
| enum | KeyFlags { Special = 1ULL << 63, Ctrl = 1ULL << 62, Shift = 1ULL << 61, Alt = 1ULL << 60, AltGr = 1ULL << 59, Special = 1ULL << 63, Ctrl = 1ULL << 62, Shift = 1ULL << 61, Alt = 1ULL << 60, AltGr = 1ULL << 59 } |
| enum | KeyboardLeds { ScrollLock = 1 << 0, NumLock = 1 << 1, CapsLock = 1 << 2, Led1 = 1 << 3, Led2 = 1 << 4, Led3 = 1 << 5, Led4 = 1 << 6, Led5 = 1 << 7 } |
| Bit numbers follow the same format as the PS/2 keyboard LED byte. More... | |
| enum | KeyFlags { Special = 1ULL << 63, Ctrl = 1ULL << 62, Shift = 1ULL << 61, Alt = 1ULL << 60, AltGr = 1ULL << 59, Special = 1ULL << 63, Ctrl = 1ULL << 62, Shift = 1ULL << 61, Alt = 1ULL << 60, AltGr = 1ULL << 59 } |
Detailed Description
Definition at line 26 of file kernel/machine/hosted/Keyboard.h.
Member Function Documentation
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Retrieves a character from the keyboard. Blocking I/O. If DebugState is false this returns zero. If DebugState is true this returns the next character received, or zero if the character is non-ASCII.
Implements Keyboard.
Definition at line 72 of file hosted/Keyboard.cc.
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Retrieves a character from the keyboard. Non blocking I/O. If DebugState is false this returns zero. If DebugState is true this returns the next character received, or zero if the character is non-ASCII.
Implements Keyboard.
Definition at line 86 of file hosted/Keyboard.cc.
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Gets the current state of the LEDs on the keyboard. A single byte bitmap is returned with flags from KeyboardLeds identifying which LEDs are on or off.
Reimplemented from Keyboard.
Definition at line 110 of file hosted/Keyboard.cc.
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Sets the state of the device. When debugging, it is unwise to rely on interrupt- driven I/O, however in normal use polling is extremely slow and CPU-intensive.
The debugger therefore will set the device to "debug state" by calling this function with the argument "true". In "debug state", any buffered input will be discarded, the device's interrupt masked, and the device will rely on polling only. This will be the default state.
When the device is set to "normal state" by calling this function with the argument "false", interrupts may be used, along with buffered input, and it is recommended that during blocking I/O a Semaphore is used to signal incoming interrupts, so that the blocked thread may go to sleep.
Implements Keyboard.
Definition at line 100 of file hosted/Keyboard.cc.
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Sets the current state of LEDs on the keyboard. If a keyboard does not have any LEDs this is essentially a no-op.
Reimplemented from Keyboard.
Definition at line 115 of file hosted/Keyboard.cc.
The documentation for this class was generated from the following files:
