#include "qdev.h"
#include "sysemu.h"
#include "monitor.h"
+#include "trace.h"
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 struct BusInfo usb_bus_info = {
.name = "USB",
static int next_usb_bus = 0;
static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
-void usb_bus_new(USBBus *bus, DeviceState *host)
+const VMStateDescription vmstate_usb_device = {
+ .name = "USBDevice",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT8(addr, USBDevice),
+ VMSTATE_INT32(state, USBDevice),
+ VMSTATE_INT32(remote_wakeup, USBDevice),
+ VMSTATE_INT32(setup_state, USBDevice),
+ VMSTATE_INT32(setup_len, USBDevice),
+ VMSTATE_INT32(setup_index, USBDevice),
+ VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host)
{
qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
+ bus->ops = ops;
bus->busnr = next_usb_bus++;
bus->qbus.allow_hotplug = 1; /* Yes, we can */
QTAILQ_INIT(&bus->free);
dev->info = info;
dev->auto_attach = 1;
QLIST_INIT(&dev->strings);
+ usb_ep_init(dev);
+ rc = usb_claim_port(dev);
+ if (rc != 0) {
+ return rc;
+ }
rc = dev->info->init(dev);
- if (rc == 0 && dev->auto_attach)
- usb_device_attach(dev);
- return rc;
+ if (rc != 0) {
+ usb_release_port(dev);
+ return rc;
+ }
+ if (dev->auto_attach) {
+ rc = usb_device_attach(dev);
+ if (rc != 0) {
+ usb_qdev_exit(qdev);
+ return rc;
+ }
+ }
+ return 0;
}
static int usb_qdev_exit(DeviceState *qdev)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
- usb_device_detach(dev);
+ if (dev->attached) {
+ usb_device_detach(dev);
+ }
if (dev->info->handle_destroy) {
dev->info->handle_destroy(dev);
}
+ if (dev->port) {
+ usb_release_port(dev);
+ }
return 0;
}
bus = usb_bus_find(-1);
if (!bus)
return NULL;
- fprintf(stderr, "%s: no bus specified, using \"%s\" for \"%s\"\n",
+ error_report("%s: no bus specified, using \"%s\" for \"%s\"",
__FUNCTION__, bus->qbus.name, name);
}
#endif
USBDevice *usb_create_simple(USBBus *bus, const char *name)
{
USBDevice *dev = usb_create(bus, name);
+ int rc;
+
if (!dev) {
- hw_error("Failed to create USB device '%s'\n", name);
+ error_report("Failed to create USB device '%s'", name);
+ return NULL;
+ }
+ rc = qdev_init(&dev->qdev);
+ if (rc < 0) {
+ error_report("Failed to initialize USB device '%s'", name);
+ return NULL;
}
- qdev_init_nofail(&dev->qdev);
return dev;
}
-void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
- USBDevice *pdev, USBPortOps *ops, int speedmask)
+static void usb_fill_port(USBPort *port, void *opaque, int index,
+ USBPortOps *ops, int speedmask)
{
- port->opaque = opaque;
- port->index = index;
- port->pdev = pdev;
port->opaque = opaque;
port->index = index;
port->ops = ops;
port->speedmask = speedmask;
+ usb_port_location(port, NULL, index + 1);
+}
+
+void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
+ USBPortOps *ops, int speedmask)
+{
+ usb_fill_port(port, opaque, index, ops, speedmask);
QTAILQ_INSERT_TAIL(&bus->free, port, next);
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)
{
if (upstream) {
bus->nfree--;
}
-static void do_attach(USBDevice *dev)
+int usb_claim_port(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
USBPort *port;
- if (dev->attached) {
- fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
- dev->product_desc);
- return;
- }
+ assert(dev->port == NULL);
+
if (dev->port_path) {
QTAILQ_FOREACH(port, &bus->free, next) {
if (strcmp(port->path, dev->port_path) == 0) {
}
}
if (port == NULL) {
- fprintf(stderr, "Warning: usb port %s (bus %s) not found\n",
- dev->port_path, bus->qbus.name);
- return;
+ error_report("Error: usb port %s (bus %s) not found (in use?)",
+ dev->port_path, bus->qbus.name);
+ return -1;
}
} else {
+ if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) {
+ /* Create a new hub and chain it on */
+ 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;
+ }
port = QTAILQ_FIRST(&bus->free);
}
+ trace_usb_port_claim(bus->busnr, port->path);
- dev->attached++;
QTAILQ_REMOVE(&bus->free, port, next);
bus->nfree--;
- usb_attach(port, dev);
+ dev->port = port;
+ port->dev = dev;
QTAILQ_INSERT_TAIL(&bus->used, port, next);
bus->nused++;
+ return 0;
}
-int usb_device_attach(USBDevice *dev)
+void usb_release_port(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port = dev->port;
- if (bus->nfree == 1 && dev->port_path == NULL) {
- /* Create a new hub and chain it on
- (unless a physical port location is specified). */
- usb_create_simple(bus, "usb-hub");
- }
- do_attach(dev);
- return 0;
+ assert(port != NULL);
+ trace_usb_port_release(bus->busnr, port->path);
+
+ QTAILQ_REMOVE(&bus->used, port, next);
+ bus->nused--;
+
+ dev->port = NULL;
+ port->dev = NULL;
+
+ QTAILQ_INSERT_TAIL(&bus->free, port, next);
+ bus->nfree++;
}
-int usb_device_detach(USBDevice *dev)
+int usb_device_attach(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
- USBPort *port;
+ USBPort *port = dev->port;
- if (!dev->attached) {
- fprintf(stderr, "Warning: tried to detach unattached usb device %s\n",
- dev->product_desc);
+ assert(port != NULL);
+ assert(!dev->attached);
+ trace_usb_port_attach(bus->busnr, port->path);
+
+ if (!(port->speedmask & dev->speedmask)) {
+ error_report("Warning: speed mismatch trying to attach "
+ "usb device %s to bus %s",
+ dev->product_desc, bus->qbus.name);
return -1;
}
- dev->attached--;
- QTAILQ_FOREACH(port, &bus->used, next) {
- if (port->dev == dev)
- break;
- }
- assert(port != NULL);
+ dev->attached++;
+ usb_attach(port);
- QTAILQ_REMOVE(&bus->used, port, next);
- bus->nused--;
+ return 0;
+}
+
+int usb_device_detach(USBDevice *dev)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port = dev->port;
- usb_attach(port, NULL);
+ assert(port != NULL);
+ assert(dev->attached);
+ trace_usb_port_detach(bus->busnr, port->path);
- QTAILQ_INSERT_TAIL(&bus->free, port, next);
- bus->nfree++;
+ usb_detach(port);
+ dev->attached--;
return 0;
}
[ USB_SPEED_LOW ] = "1.5",
[ USB_SPEED_FULL ] = "12",
[ USB_SPEED_HIGH ] = "480",
+ [ USB_SPEED_SUPER ] = "5000",
};
if (speed >= ARRAY_SIZE(txt))
return "?";
static char *usb_get_dev_path(DeviceState *qdev)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
- return qemu_strdup(dev->port->path);
+ return g_strdup(dev->port->path);
}
static char *usb_get_fw_dev_path(DeviceState *qdev)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
char *fw_path, *in;
- int pos = 0;
+ ssize_t pos = 0, fw_len;
long nr;
- fw_path = qemu_malloc(32 + strlen(dev->port->path) * 6);
+ fw_len = 32 + strlen(dev->port->path) * 6;
+ fw_path = g_malloc(fw_len);
in = dev->port->path;
- while (true) {
+ while (fw_len - pos > 0) {
nr = strtol(in, &in, 10);
if (in[0] == '.') {
/* some hub between root port and device */
- pos += sprintf(fw_path + pos, "hub@%ld/", nr);
+ pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
in++;
} else {
/* the device itself */
- pos += sprintf(fw_path + pos, "%s@%ld", qdev_fw_name(qdev), nr);
+ pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
+ qdev_fw_name(qdev), nr);
break;
}
}
projects / qemu.git / blobdiff