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Macros
#define	BIOS_KBD_BUFFER_SIZE 16

#define	BDA_KBDFLAG_RSHIFT (1 << 0)

#define	BDA_KBDFLAG_LSHIFT (1 << 1)

#define	BDA_KBDFLAG_CTRL (1 << 2)

#define	BDA_KBDFLAG_RCTRL (1 << 2)

#define	BDA_KBDFLAG_ALT (1 << 3)

#define	BDA_KBDFLAG_RALT (1 << 3)

#define	BDA_KBDFLAG_SCROLL_ON (1 << 4)

#define	BDA_KBDFLAG_NUMLOCK_ON (1 << 5)

#define	BDA_KBDFLAG_CAPSLOCK_ON (1 << 6)

#define	BDA_KBDFLAG_INSERT_ON (1 << 7)

#define	BDA_KBDFLAG_LCTRL (1 << 8)

#define	BDA_KBDFLAG_LALT (1 << 9)

#define	BDA_KBDFLAG_SYSRQ (1 << 10)

#define	BDA_KBDFLAG_PAUSE (1 << 11)

#define	BDA_KBDFLAG_SCROLL (1 << 12)

#define	BDA_KBDFLAG_NUMLOCK (1 << 13)

#define	BDA_KBDFLAG_CAPSLOCK (1 << 14)

#define	BDA_KBDFLAG_INSERT (1 << 15)

Functions
VOID	KbdBios32Post (VOID)

Macro Definition Documentation

◆ BDA_KBDFLAG_ALT

#define BDA_KBDFLAG_ALT (1 << 3)

Definition at line 22 of file kbdbios32.h.

◆ BDA_KBDFLAG_CAPSLOCK

#define BDA_KBDFLAG_CAPSLOCK (1 << 14)

Definition at line 34 of file kbdbios32.h.

◆ BDA_KBDFLAG_CAPSLOCK_ON

#define BDA_KBDFLAG_CAPSLOCK_ON (1 << 6)

Definition at line 26 of file kbdbios32.h.

◆ BDA_KBDFLAG_CTRL

#define BDA_KBDFLAG_CTRL (1 << 2)

Definition at line 20 of file kbdbios32.h.

◆ BDA_KBDFLAG_INSERT

#define BDA_KBDFLAG_INSERT (1 << 15)

Definition at line 35 of file kbdbios32.h.

◆ BDA_KBDFLAG_INSERT_ON

#define BDA_KBDFLAG_INSERT_ON (1 << 7)

Definition at line 27 of file kbdbios32.h.

◆ BDA_KBDFLAG_LALT

#define BDA_KBDFLAG_LALT (1 << 9)

Definition at line 29 of file kbdbios32.h.

◆ BDA_KBDFLAG_LCTRL

#define BDA_KBDFLAG_LCTRL (1 << 8)

Definition at line 28 of file kbdbios32.h.

◆ BDA_KBDFLAG_LSHIFT

#define BDA_KBDFLAG_LSHIFT (1 << 1)

Definition at line 19 of file kbdbios32.h.

◆ BDA_KBDFLAG_NUMLOCK

#define BDA_KBDFLAG_NUMLOCK (1 << 13)

Definition at line 33 of file kbdbios32.h.

◆ BDA_KBDFLAG_NUMLOCK_ON

#define BDA_KBDFLAG_NUMLOCK_ON (1 << 5)

Definition at line 25 of file kbdbios32.h.

◆ BDA_KBDFLAG_PAUSE

#define BDA_KBDFLAG_PAUSE (1 << 11)

Definition at line 31 of file kbdbios32.h.

◆ BDA_KBDFLAG_RALT

#define BDA_KBDFLAG_RALT (1 << 3)

Definition at line 23 of file kbdbios32.h.

◆ BDA_KBDFLAG_RCTRL

#define BDA_KBDFLAG_RCTRL (1 << 2)

Definition at line 21 of file kbdbios32.h.

◆ BDA_KBDFLAG_RSHIFT

#define BDA_KBDFLAG_RSHIFT (1 << 0)

Definition at line 18 of file kbdbios32.h.

◆ BDA_KBDFLAG_SCROLL

#define BDA_KBDFLAG_SCROLL (1 << 12)

Definition at line 32 of file kbdbios32.h.

◆ BDA_KBDFLAG_SCROLL_ON

#define BDA_KBDFLAG_SCROLL_ON (1 << 4)

Definition at line 24 of file kbdbios32.h.

◆ BDA_KBDFLAG_SYSRQ

#define BDA_KBDFLAG_SYSRQ (1 << 10)

Definition at line 30 of file kbdbios32.h.

◆ BIOS_KBD_BUFFER_SIZE

#define BIOS_KBD_BUFFER_SIZE 16

Definition at line 16 of file kbdbios32.h.

Function Documentation

◆ KbdBios32Post()

VOID KbdBios32Post ( VOID )

Definition at line 361 of file kbdbios32.c.

{
    /* Initialize the BDA */
    Bda->KeybdBufferStart = FIELD_OFFSET(BIOS_DATA_AREA, KeybdBuffer);
    Bda->KeybdBufferEnd   = Bda->KeybdBufferStart + BIOS_KBD_BUFFER_SIZE * sizeof(WORD);
    Bda->KeybdBufferHead  = Bda->KeybdBufferTail = Bda->KeybdBufferStart;
 
    // FIXME: Fill the keyboard buffer with invalid values for diagnostic purposes...
    RtlFillMemory(((LPVOID)((ULONG_PTR)Bda + Bda->KeybdBufferStart)),
                  BIOS_KBD_BUFFER_SIZE * sizeof(WORD), 'A');
 
    Bda->KeybdShiftFlags  = 0;
    Bda->KeybdStatusFlags = (1 << 4); // 101/102 enhanced keyboard installed
    Bda->KeybdLedFlags    = 0;
 
    /*
     * Register the BIOS 32-bit Interrupts:
     * - Software vector handler
     * - HW vector interrupt
     */
    RegisterBiosInt32(BIOS_KBD_INTERRUPT, BiosKeyboardService);
    EnableHwIRQ(1, BiosKeyboardIrq);
}

Referenced by Bios32Post().

Macros

Functions