aboutsummaryrefslogtreecommitdiff
path: root/hw/usb-bus.c
diff options
context:
space:
mode:
authorGerd Hoffmann <kraxel@redhat.com>2009-08-31 14:24:00 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-09-09 14:55:17 -0500
commita5d2f7273c4f59942cc7ffa763d6b60a6f44e908 (patch)
tree58aa343b12e77313bc708d3166a9bc609039d40c /hw/usb-bus.c
parent806b60248218bd5f74a8b070f5a99a864e8e51c6 (diff)
downloadqemu-a5d2f7273c4f59942cc7ffa763d6b60a6f44e908.zip
qemu-a5d2f7273c4f59942cc7ffa763d6b60a6f44e908.tar.gz
qemu-a5d2f7273c4f59942cc7ffa763d6b60a6f44e908.tar.bz2
qdev/usb: make qemu aware of usb busses.
Move usb code from vl.c to usb-bus.c and make it use the new data structures added by qdev conversion. qemu usb core should be able to handle multiple USB busses just fine now (untested though). Kill some usb_*_init() legacy functions, use usb_create_simple() instead. Kill some FIXMEs added by the first qdev/usb patch. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/usb-bus.c')
-rw-r--r--hw/usb-bus.c140
1 files changed, 136 insertions, 4 deletions
diff --git a/hw/usb-bus.c b/hw/usb-bus.c
index c695a37..169fb2f 100644
--- a/hw/usb-bus.c
+++ b/hw/usb-bus.c
@@ -1,10 +1,15 @@
#include "hw.h"
#include "usb.h"
#include "qdev.h"
+#include "sysemu.h"
+#include "monitor.h"
+
+static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
static struct BusInfo usb_bus_info = {
- .name = "USB",
- .size = sizeof(USBBus),
+ .name = "USB",
+ .size = sizeof(USBBus),
+ .print_dev = usb_bus_dev_print,
};
static int next_usb_bus = 0;
static TAILQ_HEAD(, USBBus) busses = TAILQ_HEAD_INITIALIZER(busses);
@@ -43,6 +48,8 @@ static int usb_qdev_init(DeviceState *qdev, DeviceInfo *base)
pstrcpy(dev->devname, sizeof(dev->devname), qdev->info->name);
dev->info = info;
rc = dev->info->init(dev);
+ if (rc == 0)
+ usb_device_attach(dev);
return rc;
}
@@ -61,7 +68,7 @@ void usb_qdev_register_many(USBDeviceInfo *info)
}
}
-USBDevice *usb_create_simple(USBBus *bus, const char *name)
+USBDevice *usb_create(USBBus *bus, const char *name)
{
DeviceState *dev;
@@ -77,6 +84,131 @@ USBDevice *usb_create_simple(USBBus *bus, const char *name)
#endif
dev = qdev_create(&bus->qbus, name);
- qdev_init(dev);
return DO_UPCAST(USBDevice, qdev, dev);
}
+
+USBDevice *usb_create_simple(USBBus *bus, const char *name)
+{
+ USBDevice *dev = usb_create(bus, name);
+ qdev_init(&dev->qdev);
+ return dev;
+}
+
+void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
+ usb_attachfn attach)
+{
+ port->opaque = opaque;
+ port->index = index;
+ port->attach = attach;
+ TAILQ_INSERT_TAIL(&bus->free, port, next);
+ bus->nfree++;
+}
+
+static void do_attach(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->devname);
+ return;
+ }
+ dev->attached++;
+
+ port = TAILQ_FIRST(&bus->free);
+ TAILQ_REMOVE(&bus->free, port, next);
+ bus->nfree--;
+
+ usb_attach(port, dev);
+
+ TAILQ_INSERT_TAIL(&bus->used, port, next);
+ bus->nused++;
+}
+
+int usb_device_attach(USBDevice *dev)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBDevice *hub;
+
+ if (bus->nfree == 1) {
+ /* Create a new hub and chain it on. */
+ hub = usb_create_simple(bus, "QEMU USB Hub");
+ }
+ do_attach(dev);
+ return 0;
+}
+
+int usb_device_delete_addr(int busnr, int addr)
+{
+ USBBus *bus;
+ USBPort *port;
+ USBDevice *dev;
+
+ bus = usb_bus_find(busnr);
+ if (!bus)
+ return -1;
+
+ TAILQ_FOREACH(port, &bus->used, next) {
+ if (port->dev->addr == addr)
+ break;
+ }
+ if (!port)
+ return -1;
+
+ dev = port->dev;
+ TAILQ_REMOVE(&bus->used, port, next);
+ bus->nused--;
+
+ usb_attach(port, NULL);
+ dev->info->handle_destroy(dev);
+
+ TAILQ_INSERT_TAIL(&bus->free, port, next);
+ bus->nfree++;
+ return 0;
+}
+
+static const char *usb_speed(unsigned int speed)
+{
+ static const char *txt[] = {
+ [ USB_SPEED_LOW ] = "1.5",
+ [ USB_SPEED_FULL ] = "12",
+ [ USB_SPEED_HIGH ] = "480",
+ };
+ if (speed >= ARRAY_SIZE(txt))
+ return "?";
+ return txt[speed];
+}
+
+static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
+{
+ USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
+ USBBus *bus = usb_bus_from_device(dev);
+
+ monitor_printf(mon, "%*saddr %d.%d, speed %s, name %s\n", indent, "",
+ bus->busnr, dev->addr,
+ usb_speed(dev->speed), dev->devname);
+}
+
+void usb_info(Monitor *mon)
+{
+ USBBus *bus;
+ USBDevice *dev;
+ USBPort *port;
+
+ if (TAILQ_EMPTY(&busses)) {
+ monitor_printf(mon, "USB support not enabled\n");
+ return;
+ }
+
+ TAILQ_FOREACH(bus, &busses, next) {
+ TAILQ_FOREACH(port, &bus->used, next) {
+ dev = port->dev;
+ if (!dev)
+ continue;
+ monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
+ bus->busnr, dev->addr, usb_speed(dev->speed), dev->devname);
+ }
+ }
+}
+