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pl050: add QEMU interface comment 

This describes the PL050 device interface implemented within QEMU.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20220624134109.881989-38-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 14:40:52 +01:00
parent 423bcb234b
commit 1d9d4b072d
1 changed files with 8 additions and 0 deletions
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8
hw/input/pl050.c
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@ -7,6 +7,14 @@
* This code is licensed under the GPL.
*/
/*
* QEMU interface:
* + sysbus MMIO region 0: MemoryRegion defining the PL050 registers
* + Named GPIO input "ps2-input-irq": set to 1 if the downstream PS2 device
* has asserted its irq
* + sysbus IRQ 0: PL050 output irq
*/
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "migration/vmstate.h"