Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 594 insertions, 0 deletions

diff --git a/qemu/hw/usb/dev-hub.c b/qemu/hw/usb/dev-hub.c
new file mode 100644
index 000000000..c8c685550
--- /dev/null
+++ b/qemu/hw/usb/dev-hub.c
@@ -0,0 +1,594 @@
+/*
+ * QEMU USB HUB emulation
+ *
+ * Copyright (c) 2005 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "qemu-common.h"
+#include "trace.h"
+#include "hw/usb.h"
+#include "hw/usb/desc.h"
+#include "qemu/error-report.h"
+
+#define NUM_PORTS 8
+
+typedef struct USBHubPort {
+    USBPort port;
+    uint16_t wPortStatus;
+    uint16_t wPortChange;
+} USBHubPort;
+
+typedef struct USBHubState {
+    USBDevice dev;
+    USBEndpoint *intr;
+    USBHubPort ports[NUM_PORTS];
+} USBHubState;
+
+#define TYPE_USB_HUB "usb-hub"
+#define USB_HUB(obj) OBJECT_CHECK(USBHubState, (obj), TYPE_USB_HUB)
+
+#define ClearHubFeature		(0x2000 | USB_REQ_CLEAR_FEATURE)
+#define ClearPortFeature	(0x2300 | USB_REQ_CLEAR_FEATURE)
+#define GetHubDescriptor	(0xa000 | USB_REQ_GET_DESCRIPTOR)
+#define GetHubStatus		(0xa000 | USB_REQ_GET_STATUS)
+#define GetPortStatus		(0xa300 | USB_REQ_GET_STATUS)
+#define SetHubFeature		(0x2000 | USB_REQ_SET_FEATURE)
+#define SetPortFeature		(0x2300 | USB_REQ_SET_FEATURE)
+
+#define PORT_STAT_CONNECTION	0x0001
+#define PORT_STAT_ENABLE	0x0002
+#define PORT_STAT_SUSPEND	0x0004
+#define PORT_STAT_OVERCURRENT	0x0008
+#define PORT_STAT_RESET		0x0010
+#define PORT_STAT_POWER		0x0100
+#define PORT_STAT_LOW_SPEED	0x0200
+#define PORT_STAT_HIGH_SPEED    0x0400
+#define PORT_STAT_TEST          0x0800
+#define PORT_STAT_INDICATOR     0x1000
+
+#define PORT_STAT_C_CONNECTION	0x0001
+#define PORT_STAT_C_ENABLE	0x0002
+#define PORT_STAT_C_SUSPEND	0x0004
+#define PORT_STAT_C_OVERCURRENT	0x0008
+#define PORT_STAT_C_RESET	0x0010
+
+#define PORT_CONNECTION	        0
+#define PORT_ENABLE		1
+#define PORT_SUSPEND		2
+#define PORT_OVERCURRENT	3
+#define PORT_RESET		4
+#define PORT_POWER		8
+#define PORT_LOWSPEED		9
+#define PORT_HIGHSPEED		10
+#define PORT_C_CONNECTION	16
+#define PORT_C_ENABLE		17
+#define PORT_C_SUSPEND		18
+#define PORT_C_OVERCURRENT	19
+#define PORT_C_RESET		20
+#define PORT_TEST               21
+#define PORT_INDICATOR          22
+
+/* same as Linux kernel root hubs */
+
+enum {
+    STR_MANUFACTURER = 1,
+    STR_PRODUCT,
+    STR_SERIALNUMBER,
+};
+
+static const USBDescStrings desc_strings = {
+    [STR_MANUFACTURER] = "QEMU",
+    [STR_PRODUCT]      = "QEMU USB Hub",
+    [STR_SERIALNUMBER] = "314159",
+};
+
+static const USBDescIface desc_iface_hub = {
+    .bInterfaceNumber              = 0,
+    .bNumEndpoints                 = 1,
+    .bInterfaceClass               = USB_CLASS_HUB,
+    .eps = (USBDescEndpoint[]) {
+        {
+            .bEndpointAddress      = USB_DIR_IN | 0x01,
+            .bmAttributes          = USB_ENDPOINT_XFER_INT,
+            .wMaxPacketSize        = 1 + (NUM_PORTS + 7) / 8,
+            .bInterval             = 0xff,
+        },
+    }
+};
+
+static const USBDescDevice desc_device_hub = {
+    .bcdUSB                        = 0x0110,
+    .bDeviceClass                  = USB_CLASS_HUB,
+    .bMaxPacketSize0               = 8,
+    .bNumConfigurations            = 1,
+    .confs = (USBDescConfig[]) {
+        {
+            .bNumInterfaces        = 1,
+            .bConfigurationValue   = 1,
+            .bmAttributes          = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER |
+                                     USB_CFG_ATT_WAKEUP,
+            .nif = 1,
+            .ifs = &desc_iface_hub,
+        },
+    },
+};
+
+static const USBDesc desc_hub = {
+    .id = {
+        .idVendor          = 0x0409,
+        .idProduct         = 0x55aa,
+        .bcdDevice         = 0x0101,
+        .iManufacturer     = STR_MANUFACTURER,
+        .iProduct          = STR_PRODUCT,
+        .iSerialNumber     = STR_SERIALNUMBER,
+    },
+    .full = &desc_device_hub,
+    .str  = desc_strings,
+};
+
+static const uint8_t qemu_hub_hub_descriptor[] =
+{
+	0x00,			/*  u8  bLength; patched in later */
+	0x29,			/*  u8  bDescriptorType; Hub-descriptor */
+	0x00,			/*  u8  bNbrPorts; (patched later) */
+	0x0a,			/* u16  wHubCharacteristics; */
+	0x00,			/*   (per-port OC, no power switching) */
+	0x01,			/*  u8  bPwrOn2pwrGood; 2ms */
+	0x00			/*  u8  bHubContrCurrent; 0 mA */
+
+        /* DeviceRemovable and PortPwrCtrlMask patched in later */
+};
+
+static void usb_hub_attach(USBPort *port1)
+{
+    USBHubState *s = port1->opaque;
+    USBHubPort *port = &s->ports[port1->index];
+
+    trace_usb_hub_attach(s->dev.addr, port1->index + 1);
+    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;
+    } else {
+        port->wPortStatus &= ~PORT_STAT_LOW_SPEED;
+    }
+    usb_wakeup(s->intr, 0);
+}
+
+static void usb_hub_detach(USBPort *port1)
+{
+    USBHubState *s = port1->opaque;
+    USBHubPort *port = &s->ports[port1->index];
+
+    trace_usb_hub_detach(s->dev.addr, port1->index + 1);
+    usb_wakeup(s->intr, 0);
+
+    /* 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) {
+        port->wPortStatus &= ~PORT_STAT_ENABLE;
+        port->wPortChange |= PORT_STAT_C_ENABLE;
+    }
+    usb_wakeup(s->intr, 0);
+}
+
+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 = port1->opaque;
+    USBHubPort *port = &s->ports[port1->index];
+
+    if (port->wPortStatus & PORT_STAT_SUSPEND) {
+        port->wPortChange |= PORT_STAT_C_SUSPEND;
+        usb_wakeup(s->intr, 0);
+    }
+}
+
+static void usb_hub_complete(USBPort *port, USBPacket *packet)
+{
+    USBHubState *s = port->opaque;
+
+    /*
+     * Just pass it along upstream for now.
+     *
+     * 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.
+     */
+    s->dev.port->ops->complete(s->dev.port, packet);
+}
+
+static USBDevice *usb_hub_find_device(USBDevice *dev, uint8_t addr)
+{
+    USBHubState *s = USB_HUB(dev);
+    USBHubPort *port;
+    USBDevice *downstream;
+    int i;
+
+    for (i = 0; i < NUM_PORTS; i++) {
+        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)
+{
+    USBHubState *s = USB_HUB(dev);
+    USBHubPort *port;
+    int i;
+
+    trace_usb_hub_reset(s->dev.addr);
+    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 const char *feature_name(int feature)
+{
+    static const char *name[] = {
+        [PORT_CONNECTION]    = "connection",
+        [PORT_ENABLE]        = "enable",
+        [PORT_SUSPEND]       = "suspend",
+        [PORT_OVERCURRENT]   = "overcurrent",
+        [PORT_RESET]         = "reset",
+        [PORT_POWER]         = "power",
+        [PORT_LOWSPEED]      = "lowspeed",
+        [PORT_HIGHSPEED]     = "highspeed",
+        [PORT_C_CONNECTION]  = "change connection",
+        [PORT_C_ENABLE]      = "change enable",
+        [PORT_C_SUSPEND]     = "change suspend",
+        [PORT_C_OVERCURRENT] = "change overcurrent",
+        [PORT_C_RESET]       = "change reset",
+        [PORT_TEST]          = "test",
+        [PORT_INDICATOR]     = "indicator",
+    };
+    if (feature < 0 || feature >= ARRAY_SIZE(name)) {
+        return "?";
+    }
+    return name[feature] ?: "?";
+}
+
+static void usb_hub_handle_control(USBDevice *dev, USBPacket *p,
+               int request, int value, int index, int length, uint8_t *data)
+{
+    USBHubState *s = (USBHubState *)dev;
+    int ret;
+
+    trace_usb_hub_control(s->dev.addr, request, value, index, length);
+
+    ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
+    if (ret >= 0) {
+        return;
+    }
+
+    switch(request) {
+    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
+        if (value == 0 && index != 0x81) { /* clear ep halt */
+            goto fail;
+        }
+        break;
+        /* usb specific requests */
+    case GetHubStatus:
+        data[0] = 0;
+        data[1] = 0;
+        data[2] = 0;
+        data[3] = 0;
+        p->actual_length = 4;
+        break;
+    case GetPortStatus:
+        {
+            unsigned int n = index - 1;
+            USBHubPort *port;
+            if (n >= NUM_PORTS) {
+                goto fail;
+            }
+            port = &s->ports[n];
+            trace_usb_hub_get_port_status(s->dev.addr, index,
+                                          port->wPortStatus,
+                                          port->wPortChange);
+            data[0] = port->wPortStatus;
+            data[1] = port->wPortStatus >> 8;
+            data[2] = port->wPortChange;
+            data[3] = port->wPortChange >> 8;
+            p->actual_length = 4;
+        }
+        break;
+    case SetHubFeature:
+    case ClearHubFeature:
+        if (value != 0 && value != 1) {
+            goto fail;
+        }
+        break;
+    case SetPortFeature:
+        {
+            unsigned int n = index - 1;
+            USBHubPort *port;
+            USBDevice *dev;
+
+            trace_usb_hub_set_port_feature(s->dev.addr, index,
+                                           feature_name(value));
+
+            if (n >= NUM_PORTS) {
+                goto fail;
+            }
+            port = &s->ports[n];
+            dev = port->port.dev;
+            switch(value) {
+            case PORT_SUSPEND:
+                port->wPortStatus |= PORT_STAT_SUSPEND;
+                break;
+            case PORT_RESET:
+                if (dev && dev->attached) {
+                    usb_device_reset(dev);
+                    port->wPortChange |= PORT_STAT_C_RESET;
+                    /* set enable bit */
+                    port->wPortStatus |= PORT_STAT_ENABLE;
+                    usb_wakeup(s->intr, 0);
+                }
+                break;
+            case PORT_POWER:
+                break;
+            default:
+                goto fail;
+            }
+        }
+        break;
+    case ClearPortFeature:
+        {
+            unsigned int n = index - 1;
+            USBHubPort *port;
+
+            trace_usb_hub_clear_port_feature(s->dev.addr, index,
+                                             feature_name(value));
+
+            if (n >= NUM_PORTS) {
+                goto fail;
+            }
+            port = &s->ports[n];
+            switch(value) {
+            case PORT_ENABLE:
+                port->wPortStatus &= ~PORT_STAT_ENABLE;
+                break;
+            case PORT_C_ENABLE:
+                port->wPortChange &= ~PORT_STAT_C_ENABLE;
+                break;
+            case PORT_SUSPEND:
+                port->wPortStatus &= ~PORT_STAT_SUSPEND;
+                break;
+            case PORT_C_SUSPEND:
+                port->wPortChange &= ~PORT_STAT_C_SUSPEND;
+                break;
+            case PORT_C_CONNECTION:
+                port->wPortChange &= ~PORT_STAT_C_CONNECTION;
+                break;
+            case PORT_C_OVERCURRENT:
+                port->wPortChange &= ~PORT_STAT_C_OVERCURRENT;
+                break;
+            case PORT_C_RESET:
+                port->wPortChange &= ~PORT_STAT_C_RESET;
+                break;
+            default:
+                goto fail;
+            }
+        }
+        break;
+    case GetHubDescriptor:
+        {
+            unsigned int n, limit, var_hub_size = 0;
+            memcpy(data, qemu_hub_hub_descriptor,
+                   sizeof(qemu_hub_hub_descriptor));
+            data[2] = NUM_PORTS;
+
+            /* fill DeviceRemovable bits */
+            limit = ((NUM_PORTS + 1 + 7) / 8) + 7;
+            for (n = 7; n < limit; n++) {
+                data[n] = 0x00;
+                var_hub_size++;
+            }
+
+            /* fill PortPwrCtrlMask bits */
+            limit = limit + ((NUM_PORTS + 7) / 8);
+            for (;n < limit; n++) {
+                data[n] = 0xff;
+                var_hub_size++;
+            }
+
+            p->actual_length = sizeof(qemu_hub_hub_descriptor) + var_hub_size;
+            data[0] = p->actual_length;
+            break;
+        }
+    default:
+    fail:
+        p->status = USB_RET_STALL;
+        break;
+    }
+}
+
+static void usb_hub_handle_data(USBDevice *dev, USBPacket *p)
+{
+    USBHubState *s = (USBHubState *)dev;
+
+    switch(p->pid) {
+    case USB_TOKEN_IN:
+        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->iov.size == 1) { /* FreeBSD workaround */
+                n = 1;
+            } else if (n > p->iov.size) {
+                p->status = USB_RET_BABBLE;
+                return;
+            }
+            status = 0;
+            for(i = 0; i < NUM_PORTS; i++) {
+                port = &s->ports[i];
+                if (port->wPortChange)
+                    status |= (1 << (i + 1));
+            }
+            if (status != 0) {
+                trace_usb_hub_status_report(s->dev.addr, status);
+                for(i = 0; i < n; i++) {
+                    buf[i] = status >> (8 * i);
+                }
+                usb_packet_copy(p, buf, n);
+            } else {
+                p->status = USB_RET_NAK; /* usb11 11.13.1 */
+            }
+        } else {
+            goto fail;
+        }
+        break;
+    case USB_TOKEN_OUT:
+    default:
+    fail:
+        p->status = USB_RET_STALL;
+        break;
+    }
+}
+
+static void usb_hub_handle_destroy(USBDevice *dev)
+{
+    USBHubState *s = (USBHubState *)dev;
+    int i;
+
+    for (i = 0; i < NUM_PORTS; i++) {
+        usb_unregister_port(usb_bus_from_device(dev),
+                            &s->ports[i].port);
+    }
+}
+
+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,
+};
+
+static void usb_hub_realize(USBDevice *dev, Error **errp)
+{
+    USBHubState *s = USB_HUB(dev);
+    USBHubPort *port;
+    int i;
+
+    if (dev->port->hubcount == 5) {
+        error_setg(errp, "usb hub chain too deep");
+        return;
+    }
+
+    usb_desc_create_serial(dev);
+    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);
+        usb_port_location(&port->port, dev->port, i+1);
+    }
+    usb_hub_handle_reset(dev);
+}
+
+static const VMStateDescription vmstate_usb_hub_port = {
+    .name = "usb-hub-port",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT16(wPortStatus, USBHubPort),
+        VMSTATE_UINT16(wPortChange, USBHubPort),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const VMStateDescription vmstate_usb_hub = {
+    .name = "usb-hub",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_USB_DEVICE(dev, USBHubState),
+        VMSTATE_STRUCT_ARRAY(ports, USBHubState, NUM_PORTS, 0,
+                             vmstate_usb_hub_port, USBHubPort),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void usb_hub_class_initfn(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
+
+    uc->realize        = usb_hub_realize;
+    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;
+    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+    dc->fw_name = "hub";
+    dc->vmsd = &vmstate_usb_hub;
+}
+
+static const TypeInfo hub_info = {
+    .name          = TYPE_USB_HUB,
+    .parent        = TYPE_USB_DEVICE,
+    .instance_size = sizeof(USBHubState),
+    .class_init    = usb_hub_class_initfn,
+};
+
+static void usb_hub_register_types(void)
+{
+    type_register_static(&hub_info);
+}
+
+type_init(usb_hub_register_types)