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49 lines
1.4 KiB
Markdown
49 lines
1.4 KiB
Markdown
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[← Home](../README.md) · [Devices](README.md)
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# keyboard.device — Keyboard Input
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## Overview
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`keyboard.device` provides raw keycode events from the keyboard controller (8520 CIA-A). Normally used indirectly via `input.device`, but can be accessed directly for keymap-independent scanning.
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---
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## Keycodes
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Amiga keycodes are 7-bit values (0–127). Bit 7 indicates key-up:
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| Code | Key | Code | Key |
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|---|---|---|---|
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| `$00` | \` (backtick) | `$40` | Space |
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| `$01`–`$0A` | 1–0 | `$41` | Backspace |
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| `$10`–`$19` | Q–P | `$42` | Tab |
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| `$20`–`$28` | A–L | `$43` | Enter (keypad) |
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| `$31`–`$39` | Z–/ | `$44` | Return |
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| `$45` | Escape | `$46` | Delete |
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| `$4C` | Cursor Up | `$4D` | Cursor Down |
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| `$4E` | Cursor Right | `$4F` | Cursor Left |
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| `$50`–`$59` | F1–F10 | `$5F` | Help |
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| `$60` | Left Shift | `$61` | Right Shift |
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| `$62` | Caps Lock | `$63` | Control |
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| `$64` | Left Alt | `$65` | Right Alt |
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| `$66` | Left Amiga | `$67` | Right Amiga |
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---
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## Commands
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| Code | Constant | Description |
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|---|---|---|
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| 2 | `CMD_READ` | Read raw keycodes |
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| 5 | `CMD_CLEAR` | Clear keyboard buffer |
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| 9 | `KBD_READMATRIX` | Read full key matrix state |
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| 10 | `KBD_ADDRESETHANDLER` | Add Ctrl-Amiga-Amiga handler |
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| 11 | `KBD_REMRESETHANDLER` | Remove reset handler |
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| 12 | `KBD_RESETHANDLERDONE` | Acknowledge reset handler completion |
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---
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## References
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- NDK39: `devices/keyboard.h`
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