lasips2: add QEMU interface comment

This describes the LASI PS2 device interface implemented within QEMU.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20220624134109.881989-49-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Mark Cave-Ayland 2022-06-24 14:41:03 +01:00
parent 0d1ac496a2
commit 501f062e91

View File

@ -4,6 +4,20 @@
* Copyright (c) 2019 Sven Schnelle
*
*/
/*
* QEMU interface:
* + sysbus MMIO region 0: MemoryRegion defining the LASI PS2 keyboard
* registers
* + sysbus MMIO region 1: MemoryRegion defining the LASI PS2 mouse
* registers
* + sysbus IRQ 0: LASI PS2 output irq
* + Named GPIO input "ps2-kbd-input-irq": set to 1 if the downstream PS2
* keyboard device has asserted its irq
* + Named GPIO input "ps2-mouse-input-irq": set to 1 if the downstream PS2
* mouse device has asserted its irq
*/
#ifndef HW_INPUT_LASIPS2_H
#define HW_INPUT_LASIPS2_H