From: Gonglei <arei.gong...@huawei.com>
Add "realize/unrealize" in USBDeviceClass, which has errp
as a parameter. So all the implementations now use
error_setg instead of error_report for reporting error.
Note: this patch still keep "init" in USBDeviceClass, and
call kclass->init in usb_device_realize(), avoid breaking
git bisect. After realize all usb devices, will be removed.
Signed-off-by: Gonglei <arei.gong...@huawei.com>
---
hw/usb/bus.c | 81 +++++++++++++++++++++++++++-------------------------
hw/usb/dev-serial.c | 4 +--
hw/usb/dev-storage.c | 11 +++++--
hw/usb/host-libusb.c | 7 +++--
hw/usb/redirect.c | 6 +++-
include/hw/usb.h | 10 +++++--
6 files changed, 70 insertions(+), 49 deletions(-)
diff --git a/hw/usb/bus.c b/hw/usb/bus.c
index c7c4dad..12881cb 100644
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@@ -9,7 +9,7 @@ static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev,
int indent);
static char *usb_get_dev_path(DeviceState *dev);
static char *usb_get_fw_dev_path(DeviceState *qdev);
-static int usb_qdev_exit(DeviceState *qdev);
+static void usb_qdev_unrealize(DeviceState *qdev, Error **errp);
static Property usb_props[] = {
DEFINE_PROP_STRING("port", USBDevice, port_path),
@@ -107,13 +107,15 @@ USBBus *usb_bus_find(int busnr)
return NULL;
}
-static int usb_device_init(USBDevice *dev)
+static void usb_device_realize(USBDevice *dev, Error **errp)
{
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
- if (klass->init) {
- return klass->init(dev);
+
+ if (klass->realize) {
+ klass->realize(dev, errp);
+ } else if (klass->init) {
+ klass->init(dev);
}
- return 0;
}
USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr)
@@ -232,36 +234,41 @@ void usb_device_free_streams(USBDevice *dev, USBEndpoint
**eps, int nr_eps)
}
}
-static int usb_qdev_init(DeviceState *qdev)
+static void usb_qdev_realize(DeviceState *qdev, Error **errp)
{
USBDevice *dev = USB_DEVICE(qdev);
- int rc;
+ Error *local_err = NULL;
pstrcpy(dev->product_desc, sizeof(dev->product_desc),
usb_device_get_product_desc(dev));
dev->auto_attach = 1;
QLIST_INIT(&dev->strings);
usb_ep_init(dev);
- rc = usb_claim_port(dev);
- if (rc != 0) {
- return rc;
+
+ usb_claim_port(dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
- rc = usb_device_init(dev);
- if (rc != 0) {
+
+ usb_device_realize(dev, &local_err);
+ if (local_err) {
usb_release_port(dev);
- return rc;
+ error_propagate(errp, local_err);
+ return;
}
+
if (dev->auto_attach) {
- rc = usb_device_attach(dev);
- if (rc != 0) {
- usb_qdev_exit(qdev);
- return rc;
+ usb_device_attach(dev, &local_err);
+ if (local_err) {
+ usb_qdev_unrealize(qdev, NULL);
+ error_propagate(errp, local_err);
+ return;
}
}
- return 0;
}
-static int usb_qdev_exit(DeviceState *qdev)
+static void usb_qdev_unrealize(DeviceState *qdev, Error **errp)
{
USBDevice *dev = USB_DEVICE(qdev);
@@ -272,7 +279,6 @@ static int usb_qdev_exit(DeviceState *qdev)
if (dev->port) {
usb_release_port(dev);
}
- return 0;
}
typedef struct LegacyUSBFactory
@@ -392,7 +398,7 @@ void usb_unregister_port(USBBus *bus, USBPort *port)
bus->nfree--;
}
-int usb_claim_port(USBDevice *dev)
+void usb_claim_port(USBDevice *dev, Error **errp)
{
USBBus *bus = usb_bus_from_device(dev);
USBPort *port;
@@ -406,9 +412,9 @@ int usb_claim_port(USBDevice *dev)
}
}
if (port == NULL) {
- error_report("Error: usb port %s (bus %s) not found (in use?)",
- dev->port_path, bus->qbus.name);
- return -1;
+ error_setg(errp, "Error: usb port %s (bus %s) not found (in use?)",
+ dev->port_path, bus->qbus.name);
+ return;
}
} else {
if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)),
"usb-hub") != 0) {
@@ -416,9 +422,9 @@ int usb_claim_port(USBDevice *dev)
usb_create_simple(bus, "usb-hub");
}
if (bus->nfree == 0) {
- error_report("Error: tried to attach usb device %s to a bus "
- "with no free ports", dev->product_desc);
- return -1;
+ error_setg(errp, "Error: tried to attach usb device %s to a bus "
+ "with no free ports", dev->product_desc);
+ return;
}
port = QTAILQ_FIRST(&bus->free);
}
@@ -432,7 +438,6 @@ int usb_claim_port(USBDevice *dev)
QTAILQ_INSERT_TAIL(&bus->used, port, next);
bus->nused++;
- return 0;
}
void usb_release_port(USBDevice *dev)
@@ -475,7 +480,7 @@ static void usb_mask_to_str(char *dest, size_t size,
}
}
-int usb_device_attach(USBDevice *dev)
+void usb_device_attach(USBDevice *dev, Error **errp)
{
USBBus *bus = usb_bus_from_device(dev);
USBPort *port = dev->port;
@@ -489,18 +494,16 @@ int usb_device_attach(USBDevice *dev)
devspeed, portspeed);
if (!(port->speedmask & dev->speedmask)) {
- error_report("Warning: speed mismatch trying to attach"
- " usb device \"%s\" (%s speed)"
- " to bus \"%s\", port \"%s\" (%s speed)",
- dev->product_desc, devspeed,
- bus->qbus.name, port->path, portspeed);
- return -1;
+ error_setg(errp, "Warning: speed mismatch trying to attach"
+ " usb device \"%s\" (%s speed)"
+ " to bus \"%s\", port \"%s\" (%s speed)",
+ dev->product_desc, devspeed,
+ bus->qbus.name, port->path, portspeed);
+ return;
}
dev->attached++;
usb_attach(port);
-
- return 0;
}
int usb_device_detach(USBDevice *dev)
@@ -688,9 +691,9 @@ static void usb_device_class_init(ObjectClass *klass, void
*data)
{
DeviceClass *k = DEVICE_CLASS(klass);
k->bus_type = TYPE_USB_BUS;
- k->init = usb_qdev_init;
k->unplug = qdev_simple_unplug_cb;
- k->exit = usb_qdev_exit;
+ k->realize = usb_qdev_realize;
+ k->unrealize = usb_qdev_unrealize;
k->props = usb_props;
}
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index d360614..178ecb2 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -460,7 +460,7 @@ static void usb_serial_event(void *opaque, int event)
break;
case CHR_EVENT_OPENED:
if (!s->dev.attached) {
- usb_device_attach(&s->dev);
+ usb_device_attach(&s->dev, NULL);
}
break;
case CHR_EVENT_CLOSED:
@@ -489,7 +489,7 @@ static int usb_serial_initfn(USBDevice *dev)
usb_serial_handle_reset(dev);
if (s->cs->be_open && !dev->attached) {
- usb_device_attach(dev);
+ usb_device_attach(dev, NULL);
}
return 0;
}
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
index f731b0a..a9f31f0 100644
--- a/hw/usb/dev-storage.c
+++ b/hw/usb/dev-storage.c
@@ -549,12 +549,17 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket
*p)
static void usb_msd_password_cb(void *opaque, int err)
{
MSDState *s = opaque;
+ Error *local_err = NULL;
- if (!err)
- err = usb_device_attach(&s->dev);
+ if (!err) {
+ usb_device_attach(&s->dev, &local_err);
+ }
- if (err)
+ if (local_err) {
+ error_report("%s", error_get_pretty(local_err));
+ error_free(local_err);
qdev_unplug(&s->dev.qdev, NULL);
+ }
}
static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req)
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index c189147..9f92705 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -834,6 +834,7 @@ static int usb_host_open(USBHostDevice *s, libusb_device
*dev)
int bus_num = libusb_get_bus_number(dev);
int addr = libusb_get_device_address(dev);
int rc;
+ Error *local_err = NULL;
trace_usb_host_open_started(bus_num, addr);
@@ -869,8 +870,10 @@ static int usb_host_open(USBHostDevice *s, libusb_device
*dev)
"host:%d.%d", bus_num, addr);
}
- rc = usb_device_attach(udev);
- if (rc) {
+ usb_device_attach(udev, &local_err);
+ if (local_err) {
+ error_report("%s", error_get_pretty(local_err));
+ error_free(local_err);
goto fail;
}
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index 44522d9..95158b3 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -1256,6 +1256,7 @@ static void usbredir_device_reject_bh(void *opaque)
static void usbredir_do_attach(void *opaque)
{
USBRedirDevice *dev = opaque;
+ Error *local_err = NULL;
/* In order to work properly with XHCI controllers we need these caps */
if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !(
@@ -1270,7 +1271,10 @@ static void usbredir_do_attach(void *opaque)
return;
}
- if (usb_device_attach(&dev->dev) != 0) {
+ usb_device_attach(&dev->dev, &local_err);
+ if (local_err) {
+ error_report("%s", error_get_pretty(local_err));
+ error_free(local_err);
WARNING("rejecting device due to speed mismatch\n");
usbredir_reject_device(dev);
}
diff --git a/include/hw/usb.h b/include/hw/usb.h
index 6b32a3b..612f09f 100644
--- a/include/hw/usb.h
+++ b/include/hw/usb.h
@@ -267,11 +267,17 @@ struct USBDevice {
#define USB_DEVICE_GET_CLASS(obj) \
OBJECT_GET_CLASS(USBDeviceClass, (obj), TYPE_USB_DEVICE)
+typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
+typedef void (*USBDeviceUnrealize)(USBDevice *dev, Error **errp);
+
typedef struct USBDeviceClass {
DeviceClass parent_class;
int (*init)(USBDevice *dev);
+ USBDeviceRealize realize;
+ USBDeviceUnrealize unrealize;
+
/*
* Walk (enabled) downstream ports, check for a matching device.
* Only hubs implement this.
@@ -544,9 +550,9 @@ int usb_register_companion(const char *masterbus, USBPort
*ports[],
void *opaque, USBPortOps *ops, int speedmask);
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
void usb_unregister_port(USBBus *bus, USBPort *port);
-int usb_claim_port(USBDevice *dev);
+void usb_claim_port(USBDevice *dev, Error **errp);
void usb_release_port(USBDevice *dev);
-int usb_device_attach(USBDevice *dev);
+void usb_device_attach(USBDevice *dev, Error **errp);
int usb_device_detach(USBDevice *dev);
int usb_device_delete_addr(int busnr, int addr);
--
1.7.12.4
