haraldwolff/qemu-patch-raspberry4
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usb-hub: add usb_hub_port_update()

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Helper function to update port status bits which depends on the
connected device.  We need the same logic for device attach and
port reset, so factor it out.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190524070310.4952-5-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2019-05-24 09:03:09 +02:00
parent 868a420393
commit 638ac2d843
1 changed files with 17 additions and 12 deletions
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29
hw/usb/dev-hub.c
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@ -188,18 +188,28 @@ static bool usb_hub_port_clear(USBHubPort *port, uint16_t status)
return usb_hub_port_change(port, status);
}
static bool usb_hub_port_update(USBHubPort *port)
{
bool notify = false;
if (port->port.dev && port->port.dev->attached) {
notify = usb_hub_port_set(port, PORT_STAT_CONNECTION);
if (port->port.dev->speed == USB_SPEED_LOW) {
usb_hub_port_set(port, PORT_STAT_LOW_SPEED);
} else {
usb_hub_port_clear(port, PORT_STAT_LOW_SPEED);
}
}
return notify;
}
static void usb_hub_attach(USBPort *port1)
{
USBHubState *s = port1->opaque;
USBHubPort *port = &s->ports[port1->index];
trace_usb_hub_attach(s->dev.addr, port1->index + 1);
usb_hub_port_set(port, PORT_STAT_CONNECTION);
if (port->port.dev->speed == USB_SPEED_LOW) {
usb_hub_port_set(port, PORT_STAT_LOW_SPEED);
} else {
usb_hub_port_clear(port, PORT_STAT_LOW_SPEED);
}
usb_hub_port_update(port);
usb_wakeup(s->intr, 0);
}
@ -287,12 +297,7 @@ static void usb_hub_handle_reset(USBDevice *dev)
port->wPortStatus = 0;
port->wPortChange = 0;
usb_hub_port_set(port, PORT_STAT_POWER);
if (port->port.dev && port->port.dev->attached) {
usb_hub_port_set(port, PORT_STAT_CONNECTION);
if (port->port.dev->speed == USB_SPEED_LOW) {
usb_hub_port_set(port, PORT_STAT_LOW_SPEED);
}
}
usb_hub_port_update(port);
}
}