50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
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#ifndef _DRIVERS_PCKBD_H
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#define _DRIVERS_PCKBD_H
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/* Standard and AT keyboard. (PS/2 MCA implies AT throughout.) */
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#define KEYBD 0x60 /* I/O port for keyboard data */
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/* AT keyboard. */
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#define KB_COMMAND 0x64 /* I/O port for commands on AT */
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#define KB_STATUS 0x64 /* I/O port for status on AT */
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#define KB_ACK 0xFA /* keyboard ack response */
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#define KB_AUX_BYTE 0x20 /* Auxiliary Device Output Buffer Full */
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#define KB_OUT_FULL 0x01 /* status bit set when keypress char pending */
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#define KB_IN_FULL 0x02 /* status bit set when not ready to receive */
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#define KBC_RD_RAM_CCB 0x20 /* Read controller command byte */
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#define KBC_WR_RAM_CCB 0x60 /* Write controller command byte */
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#define KBC_DI_AUX 0xA7 /* Disable Auxiliary Device */
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#define KBC_EN_AUX 0xA8 /* Enable Auxiliary Device */
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#define KBC_DI_KBD 0xAD /* Disable Keybard Interface */
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#define KBC_EN_KBD 0xAE /* Enable Keybard Interface */
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#define LED_CODE 0xED /* command to keyboard to set LEDs */
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#define KBC_WAIT_TIME 100000 /* wait this many usecs for a status update */
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#define KBC_READ_TIME 1000000 /* wait this many usecs for a result byte */
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#define KBC_IN_DELAY 7 /* wait 7 microseconds when polling */
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#define KBD_OUT_BUFSZ 16 /* Output buffer for data to the keyboard. */
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#define KBD_SCAN_CODES 0x80
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#define SCAN_RELEASE 0x80
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#define SCAN_CTRL 0x1D
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#define SCAN_NUMLOCK 0x45
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#define SCAN_EXT0 0xE0
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#define SCAN_EXT1 0xE1
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#define LED_SCROLL_LOCK 0x01
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#define LED_NUM_LOCK 0x02
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#define LED_CAPS_LOCK 0x04
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struct scanmap {
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unsigned short page;
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unsigned short code;
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};
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extern const struct scanmap scanmap_normal[KBD_SCAN_CODES];
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extern const struct scanmap scanmap_escaped[KBD_SCAN_CODES];
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#endif /* !_DRIVERS_PCKBD_H */
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