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The named input gpio is to be connected to the IRQ output of the downstream PS2 device and used to drive the port IRQ. Initialise the named input gpio in lasips2_port_init() and add new lasips2_port_class_init() and lasips2_port_realize() functions to connect the PS2 device output gpio to the new named input gpio. Note that the reference to lasips2_port_realize() is stored in LASIPS2PortDeviceClass but not yet used. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Tested-by: Helge Deller <deller@gmx.de> Acked-by: Helge Deller <deller@gmx.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20220712215251.7944-27-mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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* QEMU LASI PS/2 emulation
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*
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* Copyright (c) 2019 Sven Schnelle
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*
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*/
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/*
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* QEMU interface:
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* + sysbus MMIO region 0: MemoryRegion defining the LASI PS2 keyboard
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* registers
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* + sysbus MMIO region 1: MemoryRegion defining the LASI PS2 mouse
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* registers
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* + sysbus IRQ 0: LASI PS2 output irq
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* + Named GPIO input "ps2-kbd-input-irq": set to 1 if the downstream PS2
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* keyboard device has asserted its irq
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* + Named GPIO input "ps2-mouse-input-irq": set to 1 if the downstream PS2
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* mouse device has asserted its irq
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*/
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#ifndef HW_INPUT_LASIPS2_H
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#define HW_INPUT_LASIPS2_H
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#include "exec/hwaddr.h"
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#include "hw/sysbus.h"
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#include "hw/input/ps2.h"
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#define TYPE_LASIPS2_PORT "lasips2-port"
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OBJECT_DECLARE_TYPE(LASIPS2Port, LASIPS2PortDeviceClass, LASIPS2_PORT)
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struct LASIPS2PortDeviceClass {
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DeviceClass parent;
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DeviceRealize parent_realize;
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};
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typedef struct LASIPS2State LASIPS2State;
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struct LASIPS2Port {
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DeviceState parent_obj;
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LASIPS2State *parent;
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MemoryRegion reg;
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PS2State *ps2dev;
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uint8_t id;
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uint8_t control;
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uint8_t buf;
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bool loopback_rbne;
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bool birq;
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qemu_irq irq;
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};
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#define TYPE_LASIPS2_KBD_PORT "lasips2-kbd-port"
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OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2KbdPort, LASIPS2_KBD_PORT)
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struct LASIPS2KbdPort {
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LASIPS2Port parent_obj;
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};
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#define TYPE_LASIPS2_MOUSE_PORT "lasips2-mouse-port"
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OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2MousePort, LASIPS2_MOUSE_PORT)
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struct LASIPS2MousePort {
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LASIPS2Port parent_obj;
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};
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struct LASIPS2State {
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SysBusDevice parent_obj;
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LASIPS2KbdPort kbd_port;
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LASIPS2MousePort mouse_port;
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qemu_irq irq;
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};
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#define TYPE_LASIPS2 "lasips2"
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OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2State, LASIPS2)
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#endif /* HW_INPUT_LASIPS2_H */
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