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https://github.com/Motorhead1991/qemu.git
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a75f336b97
Convert the hw/input/stellaris_input device to qdev. The interface uses an array property for the board to specify the keycodes to use, so the s->keycodes memory is now allocated by the array-property machinery. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20231030114802.3671871-6-peter.maydell@linaro.org
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* Gamepad style buttons connected to IRQ/GPIO lines
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*
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* Copyright (c) 2007 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licensed under the GPL.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/input/stellaris_gamepad.h"
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#include "hw/irq.h"
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#include "hw/qdev-properties.h"
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#include "migration/vmstate.h"
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#include "ui/console.h"
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static void stellaris_gamepad_put_key(void * opaque, int keycode)
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{
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StellarisGamepad *s = (StellarisGamepad *)opaque;
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int i;
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int down;
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if (keycode == 0xe0 && !s->extension) {
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s->extension = 0x80;
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return;
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}
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down = (keycode & 0x80) == 0;
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keycode = (keycode & 0x7f) | s->extension;
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for (i = 0; i < s->num_buttons; i++) {
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if (s->keycodes[i] == keycode && s->pressed[i] != down) {
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s->pressed[i] = down;
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qemu_set_irq(s->irqs[i], down);
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}
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}
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s->extension = 0;
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}
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static const VMStateDescription vmstate_stellaris_gamepad = {
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.name = "stellaris_gamepad",
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.version_id = 3,
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.minimum_version_id = 3,
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.fields = (VMStateField[]) {
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VMSTATE_INT32(extension, StellarisGamepad),
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VMSTATE_VARRAY_UINT32(pressed, StellarisGamepad, num_buttons,
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0, vmstate_info_uint8, uint8_t),
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VMSTATE_END_OF_LIST()
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}
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};
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static void stellaris_gamepad_realize(DeviceState *dev, Error **errp)
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{
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StellarisGamepad *s = STELLARIS_GAMEPAD(dev);
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if (s->num_buttons == 0) {
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error_setg(errp, "keycodes property array must be set");
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return;
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}
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s->irqs = g_new0(qemu_irq, s->num_buttons);
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s->pressed = g_new0(uint8_t, s->num_buttons);
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qdev_init_gpio_out(dev, s->irqs, s->num_buttons);
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qemu_add_kbd_event_handler(stellaris_gamepad_put_key, dev);
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}
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static void stellaris_gamepad_reset_enter(Object *obj, ResetType type)
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{
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StellarisGamepad *s = STELLARIS_GAMEPAD(obj);
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memset(s->pressed, 0, s->num_buttons * sizeof(uint8_t));
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}
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static Property stellaris_gamepad_properties[] = {
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DEFINE_PROP_ARRAY("keycodes", StellarisGamepad, num_buttons,
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keycodes, qdev_prop_uint32, uint32_t),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void stellaris_gamepad_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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ResettableClass *rc = RESETTABLE_CLASS(klass);
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rc->phases.enter = stellaris_gamepad_reset_enter;
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dc->realize = stellaris_gamepad_realize;
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dc->vmsd = &vmstate_stellaris_gamepad;
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device_class_set_props(dc, stellaris_gamepad_properties);
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}
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static const TypeInfo stellaris_gamepad_info[] = {
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{
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.name = TYPE_STELLARIS_GAMEPAD,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(StellarisGamepad),
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.class_init = stellaris_gamepad_class_init,
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},
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};
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DEFINE_TYPES(stellaris_gamepad_info);
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