diff options
Diffstat (limited to 'qemu/hw/usb/dev-hub.c')
| -rw-r--r-- | qemu/hw/usb/dev-hub.c | 596 |
1 files changed, 0 insertions, 596 deletions
diff --git a/qemu/hw/usb/dev-hub.c b/qemu/hw/usb/dev-hub.c deleted file mode 100644 index a33f21cb3..000000000 --- a/qemu/hw/usb/dev-hub.c +++ /dev/null @@ -1,596 +0,0 @@ -/* - * 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/osdep.h" -#include "qapi/error.h" -#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) |