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kbd leds: usb kbd

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Add led status notification support to the usb kbd driver.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2010-02-26 17:17:38 +01:00 committed by Anthony Liguori
parent 6937b3766f
commit bd87813e8c
1 changed files with 8 additions and 0 deletions
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8
hw/usb-hid.c
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@ -600,12 +600,20 @@ static int usb_keyboard_poll(USBKeyboardState *s, uint8_t *buf, int len)
static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len)
{
if (len > 0) {
int ledstate = 0;
/* 0x01: Num Lock LED
* 0x02: Caps Lock LED
* 0x04: Scroll Lock LED
* 0x08: Compose LED
* 0x10: Kana LED */
s->leds = buf[0];
if (s->leds & 0x04)
ledstate |= QEMU_SCROLL_LOCK_LED;
if (s->leds & 0x01)
ledstate |= QEMU_NUM_LOCK_LED;
if (s->leds & 0x02)
ledstate |= QEMU_CAPS_LOCK_LED;
kbd_put_ledstate(ledstate);
}
return 0;
}