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usb: Propagate errors through usb_register_companion() 

This loses the messages explaining the error printed with
error_printf_unless_qmp().  The next commit will make up for the loss.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Markus Armbruster 2015-02-17 14:28:02 +01:00 committed by Gerd Hoffmann
parent 5a4992834d
commit f4bbaaf584
5 changed files with 44 additions and 28 deletions
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17
hw/usb/bus.c
View File

@ -360,9 +360,10 @@ void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
bus->nfree++;
}
int usb_register_companion(const char *masterbus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
void *opaque, USBPortOps *ops, int speedmask)
void usb_register_companion(const char *masterbus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
void *opaque, USBPortOps *ops, int speedmask,
Error **errp)
{
USBBus *bus;
int i;
@ -374,21 +375,23 @@ int usb_register_companion(const char *masterbus, USBPort *ports[],
}
if (!bus || !bus->ops->register_companion) {
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
"an USB masterbus");
error_set(errp, QERR_INVALID_PARAMETER_VALUE, "masterbus",
"an USB masterbus");
#if 0 /* conversion from qerror_report() to error_set() broke this: */
if (bus) {
error_printf_unless_qmp(
"USB bus '%s' does not allow companion controllers\n",
masterbus);
}
return -1;
#endif
return;
}
for (i = 0; i < portcount; i++) {
usb_fill_port(ports[i], opaque, i, ops, speedmask);
}
return bus->ops->register_companion(bus, ports, portcount, firstport);
bus->ops->register_companion(bus, ports, portcount, firstport, errp);
}
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)

23
hw/usb/hcd-ehci.c
View File

@ -769,30 +769,35 @@ static void ehci_wakeup(USBPort *port)
qemu_bh_schedule(s->async_bh);
}
static int ehci_register_companion(USBBus *bus, USBPort *ports[],
uint32_t portcount, uint32_t firstport)
static void ehci_register_companion(USBBus *bus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
Error **errp)
{
EHCIState *s = container_of(bus, EHCIState, bus);
uint32_t i;
if (firstport + portcount > NB_PORTS) {
qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport",
"firstport on masterbus");
error_set(errp, QERR_INVALID_PARAMETER_VALUE, "firstport",
"firstport on masterbus");
#if 0 /* conversion from qerror_report() to error_set() broke this: */
error_printf_unless_qmp(
"firstport value of %u makes companion take ports %u - %u, which "
"is outside of the valid range of 0 - %u\n", firstport, firstport,
firstport + portcount - 1, NB_PORTS - 1);
return -1;
#endif
return;
}
for (i = 0; i < portcount; i++) {
if (s->companion_ports[firstport + i]) {
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
"an USB masterbus");
error_set(errp, QERR_INVALID_PARAMETER_VALUE, "masterbus",
"an USB masterbus");
#if 0 /* conversion from qerror_report() to error_set() broke this: */
error_printf_unless_qmp(
"port %u on masterbus %s already has a companion assigned\n",
firstport + i, bus->qbus.name);
return -1;
#endif
return;
}
}
@ -806,8 +811,6 @@ static int ehci_register_companion(USBBus *bus, USBPort *ports[],
s->companion_count++;
s->caps[0x05] = (s->companion_count << 4) | portcount;
return 0;
}
static void ehci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep,

10
hw/usb/hcd-ohci.c
View File

@ -1832,6 +1832,7 @@ static int usb_ohci_init(OHCIState *ohci, DeviceState *dev,
char *masterbus, uint32_t firstport,
AddressSpace *as)
{
Error *err = NULL;
int i;
ohci->as = as;
@ -1857,9 +1858,12 @@ static int usb_ohci_init(OHCIState *ohci, DeviceState *dev,
for(i = 0; i < num_ports; i++) {
ports[i] = &ohci->rhport[i].port;
}
if (usb_register_companion(masterbus, ports, num_ports,
firstport, ohci, &ohci_port_ops,
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) {
usb_register_companion(masterbus, ports, num_ports,
firstport, ohci, &ohci_port_ops,
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL,
&err);
if (err) {
error_report_err(err);
return -1;
}
} else {

10
hw/usb/hcd-uhci.c
View File

@ -1192,6 +1192,7 @@ static USBBusOps uhci_bus_ops = {
static int usb_uhci_common_initfn(PCIDevice *dev)
{
Error *err = NULL;
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
UHCIPCIDeviceClass *u = container_of(pc, UHCIPCIDeviceClass, parent_class);
UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
@ -1209,9 +1210,12 @@ static int usb_uhci_common_initfn(PCIDevice *dev)
for(i = 0; i < NB_PORTS; i++) {
ports[i] = &s->ports[i].port;
}
if (usb_register_companion(s->masterbus, ports, NB_PORTS,
s->firstport, s, &uhci_port_ops,
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) {
usb_register_companion(s->masterbus, ports, NB_PORTS,
s->firstport, s, &uhci_port_ops,
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL,
&err);
if (err) {
error_report_err(err);
return -1;
}
} else {

12
include/hw/usb.h
View File

@ -526,8 +526,9 @@ struct USBBus {
};
struct USBBusOps {
int (*register_companion)(USBBus *bus, USBPort *ports[],
uint32_t portcount, uint32_t firstport);
void (*register_companion)(USBBus *bus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
Error **errp);
void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream);
};
@ -543,9 +544,10 @@ USBDevice *usb_create_simple(USBBus *bus, const char *name);
USBDevice *usbdevice_create(const char *cmdline);
void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
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_register_companion(const char *masterbus, USBPort *ports[],
uint32_t portcount, uint32_t firstport,
void *opaque, USBPortOps *ops, int speedmask,
Error **errp);
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
void usb_unregister_port(USBBus *bus, USBPort *port);
void usb_claim_port(USBDevice *dev, Error **errp);