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authorMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>2022-06-24 14:41:03 +0100
committerMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>2022-06-26 18:40:12 +0100
commit501f062e91ca97dfbeaa5148be59d6a27448c9d8 (patch)
tree5437735a89a302886e4537312ab8a098e1163bf1 /include/hw/input
parent0d1ac496a2587b59568bea16d88e4dadbf6dbe2c (diff)
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>
Diffstat (limited to 'include/hw/input')
-rw-r--r--include/hw/input/lasips2.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/hw/input/lasips2.h b/include/hw/input/lasips2.h
index 7e4437b925..03f0c9e9f9 100644
--- a/include/hw/input/lasips2.h
+++ b/include/hw/input/lasips2.h
@@ -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