From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Date: Fri, 24 Jun 2022 13:40:52 +0000 (+0100)
Subject: pl050: add QEMU interface comment
X-Git-Tag: v7.1.0-rc0~50^2~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1d9d4b072db7e1de406122a3012eced157939299;p=thirdparty%2Fqemu.git

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>
---

diff --git a/hw/input/pl050.c b/hw/input/pl050.c
index c665a4fc998..ffaa72dea41 100644
--- a/hw/input/pl050.c
+++ b/hw/input/pl050.c
@@ -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"