include/hw/input/lasips2.h

   1 /*
   2  * QEMU LASI PS/2 emulation
   3  *
   4  * Copyright (c) 2019 Sven Schnelle
   5  *
   6  */
   7
   8 /*
   9  * QEMU interface:
  10  * + sysbus MMIO region 0: MemoryRegion defining the LASI PS2 keyboard
  11  *   registers
  12  * + sysbus MMIO region 1: MemoryRegion defining the LASI PS2 mouse
  13  *   registers
  14  * + sysbus IRQ 0: LASI PS2 output irq
  15  * + Named GPIO input "ps2-kbd-input-irq": set to 1 if the downstream PS2
  16  *   keyboard device has asserted its irq
  17  * + Named GPIO input "ps2-mouse-input-irq": set to 1 if the downstream PS2
  18  *   mouse device has asserted its irq
  19  */
  20
  21 #ifndef HW_INPUT_LASIPS2_H
  22 #define HW_INPUT_LASIPS2_H
  23
  24 #include "exec/hwaddr.h"
  25 #include "hw/sysbus.h"
  26 #include "hw/input/ps2.h"
  27
  28 #define TYPE_LASIPS2_PORT "lasips2-port"
  29 OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2Port, LASIPS2_PORT)
  30
  31 typedef struct LASIPS2State LASIPS2State;
  32
  33 struct LASIPS2Port {
  34     DeviceState parent_obj;
  35
  36     LASIPS2State *parent;
  37     MemoryRegion reg;
  38     PS2State *ps2dev;
  39     uint8_t id;
  40     uint8_t control;
  41     uint8_t buf;
  42     bool loopback_rbne;
  43     bool irq;
  44 };
  45
  46 #define TYPE_LASIPS2_KBD_PORT "lasips2-kbd-port"
  47 OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2KbdPort, LASIPS2_KBD_PORT)
  48
  49 struct LASIPS2KbdPort {
  50     LASIPS2Port parent_obj;
  51 };
  52
  53 #define TYPE_LASIPS2_MOUSE_PORT "lasips2-mouse-port"
  54 OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2MousePort, LASIPS2_MOUSE_PORT)
  55
  56 struct LASIPS2MousePort {
  57     LASIPS2Port parent_obj;
  58 };
  59
  60 struct LASIPS2State {
  61     SysBusDevice parent_obj;
  62
  63     LASIPS2KbdPort kbd_port;
  64     LASIPS2Port mouse;
  65     qemu_irq irq;
  66 };
  67
  68 #define TYPE_LASIPS2 "lasips2"
  69 OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2State, LASIPS2)
  70
  71 #endif /* HW_INPUT_LASIPS2_H */