]> Git Repo - qemu.git/blobdiff - hw/usb-hub.c
virtio-scsi: add basic SCSI bus operation
[qemu.git] / hw / usb-hub.c
index 6e2a35839d748d57e807682067ddac9a43362dc8..a12856e2e93411ecd641f73050e02cfc0c9a58f7 100644 (file)
@@ -37,6 +37,7 @@ typedef struct USBHubPort {
 
 typedef struct USBHubState {
     USBDevice dev;
+    USBEndpoint *intr;
     USBHubPort ports[NUM_PORTS];
 } USBHubState;
 
@@ -127,8 +128,8 @@ static const USBDescDevice desc_device_hub = {
 
 static const USBDesc desc_hub = {
     .id = {
-        .idVendor          = 0,
-        .idProduct         = 0,
+        .idVendor          = 0x0409,
+        .idProduct         = 0x55aa,
         .bcdDevice         = 0x0101,
         .iManufacturer     = STR_MANUFACTURER,
         .iProduct          = STR_PRODUCT,
@@ -138,74 +139,6 @@ static const USBDesc desc_hub = {
     .str  = desc_strings,
 };
 
-static const uint8_t qemu_hub_dev_descriptor[] = {
-       0x12,       /*  u8 bLength; */
-       0x01,       /*  u8 bDescriptorType; Device */
-       0x10, 0x01, /*  u16 bcdUSB; v1.1 */
-
-       0x09,       /*  u8  bDeviceClass; HUB_CLASSCODE */
-       0x00,       /*  u8  bDeviceSubClass; */
-       0x00,       /*  u8  bDeviceProtocol; [ low/full speeds only ] */
-       0x08,       /*  u8  bMaxPacketSize0; 8 Bytes */
-
-       0x00, 0x00, /*  u16 idVendor; */
-       0x00, 0x00, /*  u16 idProduct; */
-       0x01, 0x01, /*  u16 bcdDevice */
-
-       0x03,       /*  u8  iManufacturer; */
-       0x02,       /*  u8  iProduct; */
-       0x01,       /*  u8  iSerialNumber; */
-       0x01        /*  u8  bNumConfigurations; */
-};
-
-/* XXX: patch interrupt size */
-static const uint8_t qemu_hub_config_descriptor[] = {
-
-       /* one configuration */
-       0x09,       /*  u8  bLength; */
-       0x02,       /*  u8  bDescriptorType; Configuration */
-       0x19, 0x00, /*  u16 wTotalLength; */
-       0x01,       /*  u8  bNumInterfaces; (1) */
-       0x01,       /*  u8  bConfigurationValue; */
-       0x00,       /*  u8  iConfiguration; */
-       0xe0,       /*  u8  bmAttributes;
-                                Bit 7: must be set,
-                                    6: Self-powered,
-                                    5: Remote wakeup,
-                                    4..0: resvd */
-       0x00,       /*  u8  MaxPower; */
-
-       /* USB 1.1:
-        * USB 2.0, single TT organization (mandatory):
-        *      one interface, protocol 0
-        *
-        * USB 2.0, multiple TT organization (optional):
-        *      two interfaces, protocols 1 (like single TT)
-        *      and 2 (multiple TT mode) ... config is
-        *      sometimes settable
-        *      NOT IMPLEMENTED
-        */
-
-       /* one interface */
-       0x09,       /*  u8  if_bLength; */
-       0x04,       /*  u8  if_bDescriptorType; Interface */
-       0x00,       /*  u8  if_bInterfaceNumber; */
-       0x00,       /*  u8  if_bAlternateSetting; */
-       0x01,       /*  u8  if_bNumEndpoints; */
-       0x09,       /*  u8  if_bInterfaceClass; HUB_CLASSCODE */
-       0x00,       /*  u8  if_bInterfaceSubClass; */
-       0x00,       /*  u8  if_bInterfaceProtocol; [usb1.1 or single tt] */
-       0x00,       /*  u8  if_iInterface; */
-
-       /* one endpoint (status change endpoint) */
-       0x07,       /*  u8  ep_bLength; */
-       0x05,       /*  u8  ep_bDescriptorType; Endpoint */
-       0x81,       /*  u8  ep_bEndpointAddress; IN Endpoint 1 */
-       0x03,       /*  u8  ep_bmAttributes; Interrupt */
-       0x02, 0x00, /*  u16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
-       0xff        /*  u8  ep_bInterval; (255ms -- usb 2.0 spec) */
-};
-
 static const uint8_t qemu_hub_hub_descriptor[] =
 {
        0x00,                   /*  u8  bLength; patched in later */
@@ -231,6 +164,7 @@ static void usb_hub_attach(USBPort *port1)
     } else {
         port->wPortStatus &= ~PORT_STAT_LOW_SPEED;
     }
+    usb_wakeup(s->intr);
 }
 
 static void usb_hub_detach(USBPort *port1)
@@ -238,6 +172,11 @@ static void usb_hub_detach(USBPort *port1)
     USBHubState *s = port1->opaque;
     USBHubPort *port = &s->ports[port1->index];
 
+    usb_wakeup(s->intr);
+
+    /* Let upstream know the device on this port is gone */
+    s->dev.port->ops->child_detach(s->dev.port, port1->dev);
+
     port->wPortStatus &= ~PORT_STAT_CONNECTION;
     port->wPortChange |= PORT_STAT_C_CONNECTION;
     if (port->wPortStatus & PORT_STAT_ENABLE) {
@@ -246,43 +185,80 @@ static void usb_hub_detach(USBPort *port1)
     }
 }
 
-static void usb_hub_wakeup(USBDevice *dev)
+static void usb_hub_child_detach(USBPort *port1, USBDevice *child)
+{
+    USBHubState *s = port1->opaque;
+
+    /* Pass along upstream */
+    s->dev.port->ops->child_detach(s->dev.port, child);
+}
+
+static void usb_hub_wakeup(USBPort *port1)
 {
-    USBHubState *s = dev->port->opaque;
-    USBHubPort *port = &s->ports[dev->port->index];
+    USBHubState *s = port1->opaque;
+    USBHubPort *port = &s->ports[port1->index];
 
     if (port->wPortStatus & PORT_STAT_SUSPEND) {
         port->wPortChange |= PORT_STAT_C_SUSPEND;
-        usb_wakeup(&s->dev);
+        usb_wakeup(s->intr);
     }
 }
 
-static void usb_hub_complete(USBDevice *dev, USBPacket *packet)
+static void usb_hub_complete(USBPort *port, USBPacket *packet)
 {
-    USBHubState *s = dev->port->opaque;
+    USBHubState *s = port->opaque;
 
     /*
      * Just pass it along upstream for now.
      *
-     * If we ever inplement usb 2.0 split transactions this will
+     * If we ever implement usb 2.0 split transactions this will
      * become a little more complicated ...
+     *
+     * Can't use usb_packet_complete() here because packet->owner is
+     * cleared already, go call the ->complete() callback directly
+     * instead.
      */
-    usb_packet_complete(&s->dev, packet);
+    s->dev.port->ops->complete(s->dev.port, packet);
 }
 
-static void usb_hub_handle_attach(USBDevice *dev)
+static USBDevice *usb_hub_find_device(USBDevice *dev, uint8_t addr)
 {
     USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
+    USBHubPort *port;
+    USBDevice *downstream;
     int i;
 
     for (i = 0; i < NUM_PORTS; i++) {
-        usb_port_location(&s->ports[i].port, dev->port, i+1);
+        port = &s->ports[i];
+        if (!(port->wPortStatus & PORT_STAT_ENABLE)) {
+            continue;
+        }
+        downstream = usb_find_device(&port->port, addr);
+        if (downstream != NULL) {
+            return downstream;
+        }
     }
+    return NULL;
 }
 
 static void usb_hub_handle_reset(USBDevice *dev)
 {
-    /* XXX: do it */
+    USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
+    USBHubPort *port;
+    int i;
+
+    for (i = 0; i < NUM_PORTS; i++) {
+        port = s->ports + i;
+        port->wPortStatus = PORT_STAT_POWER;
+        port->wPortChange = 0;
+        if (port->port.dev && port->port.dev->attached) {
+            port->wPortStatus |= PORT_STAT_CONNECTION;
+            port->wPortChange |= PORT_STAT_C_CONNECTION;
+            if (port->port.dev->speed == USB_SPEED_LOW) {
+                port->wPortStatus |= PORT_STAT_LOW_SPEED;
+            }
+        }
+    }
 }
 
 static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
@@ -303,13 +279,6 @@ static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
         }
         ret = 0;
         break;
-    case DeviceRequest | USB_REQ_GET_INTERFACE:
-        data[0] = 0;
-        ret = 1;
-        break;
-    case DeviceOutRequest | USB_REQ_SET_INTERFACE:
-        ret = 0;
-        break;
         /* usb specific requests */
     case GetHubStatus:
         data[0] = 0;
@@ -356,8 +325,8 @@ static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
                 port->wPortStatus |= PORT_STAT_SUSPEND;
                 break;
             case PORT_RESET:
-                if (dev) {
-                    usb_send_msg(dev, USB_MSG_RESET);
+                if (dev && dev->attached) {
+                    usb_device_reset(dev);
                     port->wPortChange |= PORT_STAT_C_RESET;
                     /* set enable bit */
                     port->wPortStatus |= PORT_STAT_ENABLE;
@@ -448,14 +417,15 @@ static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
 
     switch(p->pid) {
     case USB_TOKEN_IN:
-        if (p->devep == 1) {
+        if (p->ep->nr == 1) {
             USBHubPort *port;
             unsigned int status;
+            uint8_t buf[4];
             int i, n;
             n = (NUM_PORTS + 1 + 7) / 8;
-            if (p->len == 1) { /* FreeBSD workaround */
+            if (p->iov.size == 1) { /* FreeBSD workaround */
                 n = 1;
-            } else if (n > p->len) {
+            } else if (n > p->iov.size) {
                 return USB_RET_BABBLE;
             }
             status = 0;
@@ -466,8 +436,9 @@ static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
             }
             if (status != 0) {
                 for(i = 0; i < n; i++) {
-                    p->data[i] = status >> (8 * i);
+                    buf[i] = status >> (8 * i);
                 }
+                usb_packet_copy(p, buf, n);
                 ret = n;
             } else {
                 ret = USB_RET_NAK; /* usb11 11.13.1 */
@@ -485,44 +456,6 @@ static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
     return ret;
 }
 
-static int usb_hub_broadcast_packet(USBHubState *s, USBPacket *p)
-{
-    USBHubPort *port;
-    USBDevice *dev;
-    int i, ret;
-
-    for(i = 0; i < NUM_PORTS; i++) {
-        port = &s->ports[i];
-        dev = port->port.dev;
-        if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
-            ret = usb_handle_packet(dev, p);
-            if (ret != USB_RET_NODEV) {
-                return ret;
-            }
-        }
-    }
-    return USB_RET_NODEV;
-}
-
-static int usb_hub_handle_packet(USBDevice *dev, USBPacket *p)
-{
-    USBHubState *s = (USBHubState *)dev;
-
-#if defined(DEBUG) && 0
-    printf("usb_hub: pid=0x%x\n", pid);
-#endif
-    if (dev->state == USB_STATE_DEFAULT &&
-        dev->addr != 0 &&
-        p->devaddr != dev->addr &&
-        (p->pid == USB_TOKEN_SETUP ||
-         p->pid == USB_TOKEN_OUT ||
-         p->pid == USB_TOKEN_IN)) {
-        /* broadcast the packet to the devices */
-        return usb_hub_broadcast_packet(s, p);
-    }
-    return usb_generic_handle_packet(dev, p);
-}
-
 static void usb_hub_handle_destroy(USBDevice *dev)
 {
     USBHubState *s = (USBHubState *)dev;
@@ -537,6 +470,7 @@ static void usb_hub_handle_destroy(USBDevice *dev)
 static USBPortOps usb_hub_port_ops = {
     .attach = usb_hub_attach,
     .detach = usb_hub_detach,
+    .child_detach = usb_hub_child_detach,
     .wakeup = usb_hub_wakeup,
     .complete = usb_hub_complete,
 };
@@ -548,14 +482,15 @@ static int usb_hub_initfn(USBDevice *dev)
     int i;
 
     usb_desc_init(dev);
+    s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1);
     for (i = 0; i < NUM_PORTS; i++) {
         port = &s->ports[i];
         usb_register_port(usb_bus_from_device(dev),
                           &port->port, s, i, &usb_hub_port_ops,
                           USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
-        port->wPortStatus = PORT_STAT_POWER;
-        port->wPortChange = 0;
+        usb_port_location(&port->port, dev->port, i+1);
     }
+    usb_hub_handle_reset(dev);
     return 0;
 }
 
@@ -582,24 +517,33 @@ static const VMStateDescription vmstate_usb_hub = {
     }
 };
 
-static struct USBDeviceInfo hub_info = {
-    .product_desc   = "QEMU USB Hub",
-    .qdev.name      = "usb-hub",
-    .qdev.fw_name    = "hub",
-    .qdev.size      = sizeof(USBHubState),
-    .qdev.vmsd      = &vmstate_usb_hub,
-    .usb_desc       = &desc_hub,
-    .init           = usb_hub_initfn,
-    .handle_packet  = usb_hub_handle_packet,
-    .handle_attach  = usb_hub_handle_attach,
-    .handle_reset   = usb_hub_handle_reset,
-    .handle_control = usb_hub_handle_control,
-    .handle_data    = usb_hub_handle_data,
-    .handle_destroy = usb_hub_handle_destroy,
+static void usb_hub_class_initfn(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
+
+    uc->init           = usb_hub_initfn;
+    uc->product_desc   = "QEMU USB Hub";
+    uc->usb_desc       = &desc_hub;
+    uc->find_device    = usb_hub_find_device;
+    uc->handle_reset   = usb_hub_handle_reset;
+    uc->handle_control = usb_hub_handle_control;
+    uc->handle_data    = usb_hub_handle_data;
+    uc->handle_destroy = usb_hub_handle_destroy;
+    dc->fw_name = "hub";
+    dc->vmsd = &vmstate_usb_hub;
+}
+
+static TypeInfo hub_info = {
+    .name          = "usb-hub",
+    .parent        = TYPE_USB_DEVICE,
+    .instance_size = sizeof(USBHubState),
+    .class_init    = usb_hub_class_initfn,
 };
 
-static void usb_hub_register_devices(void)
+static void usb_hub_register_types(void)
 {
-    usb_qdev_register(&hub_info);
+    type_register_static(&hub_info);
 }
-device_init(usb_hub_register_devices)
+
+type_init(usb_hub_register_types)
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