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usb: Add a register_companion USB bus op.

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This is a preparation patch for adding support for USB companion controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2011-06-24 11:29:56 +02:00 • committed by Gerd Hoffmann
parent 3631e6c8c2
commit ae60fea97c
2 changed files with 36 additions and 0 deletions
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31
hw/usb-bus.c
View file

@ -160,6 +160,37 @@ void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
bus->nfree++; bus->nfree++;
} }
int usb_register_companion(const char *masterbus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
void *opaque, USBPortOps *ops, int speedmask)
{
USBBus *bus;
int i;
QTAILQ_FOREACH(bus, &busses, next) {
if (strcmp(bus->qbus.name, masterbus) == 0) {
break;
}
}
if (!bus || !bus->ops->register_companion) {
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
"an USB masterbus");
if (bus) {
error_printf_unless_qmp(
"USB bus '%s' does not allow companion controllers\n",
masterbus);
}
return -1;
}
for (i = 0; i < portcount; i++) {
usb_fill_port(ports[i], opaque, i, ops, speedmask);
}
return bus->ops->register_companion(bus, ports, portcount, firstport);
}
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr) void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)
{ {
if (upstream) { if (upstream) {

5
hw/usb.h
View file

@ -344,6 +344,8 @@ struct USBBus {
}; };
struct USBBusOps { struct USBBusOps {
int (*register_companion)(USBBus *bus, USBPort *ports[],
uint32_t portcount, uint32_t firstport);
void (*device_destroy)(USBBus *bus, USBDevice *dev); void (*device_destroy)(USBBus *bus, USBDevice *dev);
}; };
@ -356,6 +358,9 @@ USBDevice *usb_create_simple(USBBus *bus, const char *name);
USBDevice *usbdevice_create(const char *cmdline); USBDevice *usbdevice_create(const char *cmdline);
void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
USBPortOps *ops, int speedmask); USBPortOps *ops, int speedmask);
int usb_register_companion(const char *masterbus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
void *opaque, USBPortOps *ops, int speedmask);
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr); void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
void usb_unregister_port(USBBus *bus, USBPort *port); void usb_unregister_port(USBBus *bus, USBPort *port);
int usb_device_attach(USBDevice *dev); int usb_device_attach(USBDevice *dev);