diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2010-12-01 11:27:05 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2011-01-11 17:01:02 +0100 |
| commit | 618c169b577db64ac6589ad48825d2e11760d1a6 (patch) | |
| tree | b9b60ddfcf2d07041117ec425118deb06437cf01 /hw/usb-musb.c | |
| parent | 0d86d2bebb625a222f70b76972139f6a272e3e0b (diff) | |
usb: rework attach/detach workflow
Add separate detach callback to USBPortOps, split
uhci/ohci/musb/usbhub attach functions into two.
Move common code to the usb_attach() function, only
the hardware-specific bits remain in the attach/detach
callbacks.
Keep track of the port it is attached to for each usb device.
[ v3: fix tyops in usb-musb.c ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb-musb.c')
| -rw-r--r-- | hw/usb-musb.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/hw/usb-musb.c b/hw/usb-musb.c index 592d3e67f4..233a2657c0 100644 --- a/hw/usb-musb.c +++ b/hw/usb-musb.c @@ -259,10 +259,12 @@ #endif -static void musb_attach(USBPort *port, USBDevice *dev); +static void musb_attach(USBPort *port); +static void musb_detach(USBPort *port); static USBPortOps musb_port_ops = { .attach = musb_attach, + .detach = musb_detach, }; typedef struct { @@ -464,34 +466,20 @@ static void musb_session_update(MUSBState *s, int prev_dev, int prev_sess) } /* Attach or detach a device on our only port. */ -static void musb_attach(USBPort *port, USBDevice *dev) +static void musb_attach(USBPort *port) { MUSBState *s = (MUSBState *) port->opaque; - USBDevice *curr; - port = &s->port; - curr = port->dev; - - if (dev) { - if (curr) { - usb_attach(port, NULL); - /* TODO: signal some interrupts */ - } - - musb_intr_set(s, musb_irq_vbus_request, 1); - - /* Send the attach message to device */ - usb_send_msg(dev, USB_MSG_ATTACH); - } else if (curr) { - /* Send the detach message */ - usb_send_msg(curr, USB_MSG_DETACH); - - musb_intr_set(s, musb_irq_disconnect, 1); - } + musb_intr_set(s, musb_irq_vbus_request, 1); + musb_session_update(s, 0, s->session); +} - port->dev = dev; +static void musb_detach(USBPort *port) +{ + MUSBState *s = (MUSBState *) port->opaque; - musb_session_update(s, !!curr, s->session); + musb_intr_set(s, musb_irq_disconnect, 1); + musb_session_update(s, 1, s->session); } static inline void musb_cb_tick0(void *opaque) |