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adb: introduce new ADBDeviceHasData method to ADBDeviceClass

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This is required later to allow devices to assert a service request (SRQ)
signal to indicate that it has data to send, without having to consume it.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-12-mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2020-06-23 21:49:25 +01:00
parent f3d61457e8
commit 969ca2f7a1
3 changed files with 20 additions and 0 deletions
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8
hw/input/adb-kbd.c
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@ -300,6 +300,13 @@ static int adb_kbd_request(ADBDevice *d, uint8_t *obuf,
return olen;
}
static bool adb_kbd_has_data(ADBDevice *d)
{
KBDState *s = ADB_KEYBOARD(d);
return s->count > 0;
}
/* This is where keyboard events enter this file */
static void adb_keyboard_event(DeviceState *dev, QemuConsole *src,
InputEvent *evt)
@ -382,6 +389,7 @@ static void adb_kbd_class_init(ObjectClass *oc, void *data)
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
adc->devreq = adb_kbd_request;
adc->devhasdata = adb_kbd_has_data;
dc->reset = adb_kbd_reset;
dc->vmsd = &vmstate_adb_kbd;
}