* 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
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "qemu-common.h"
+#include "usb.h"
//#define DEBUG
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x00, /* u8 iConfiguration; */
- 0xc0, /* u8 bmAttributes;
+ 0xc0, /* 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
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 */
static const uint8_t qemu_hub_hub_descriptor[] =
{
- 0x09, /* u8 bLength; */
+ 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 */
- 0x00, /* u8 DeviceRemovable; *** 7 Ports max *** */
- 0xff /* u8 PortPwrCtrlMask; *** 7 ports max *** */
+ 0x00 /* u8 bHubContrCurrent; 0 mA */
+
+ /* DeviceRemovable and PortPwrCtrlMask patched in later */
};
static void usb_hub_attach(USBPort *port1, USBDevice *dev)
{
USBHubState *s = port1->opaque;
USBHubPort *port = &s->ports[port1->index];
-
+
if (dev) {
if (port->port.dev)
usb_attach(port1, NULL);
-
+
port->wPortStatus |= PORT_STAT_CONNECTION;
port->wPortChange |= PORT_STAT_C_CONNECTION;
if (dev->speed == USB_SPEED_LOW)
else
port->wPortStatus &= ~PORT_STAT_LOW_SPEED;
port->port.dev = dev;
+ /* send the attach message */
+ usb_send_msg(dev, USB_MSG_ATTACH);
} else {
dev = port->port.dev;
if (dev) {
port->wPortStatus &= ~PORT_STAT_ENABLE;
port->wPortChange |= PORT_STAT_C_ENABLE;
}
+ /* send the detach message */
+ usb_send_msg(dev, USB_MSG_DETACH);
port->port.dev = NULL;
}
}
}
ret = 0;
break;
+ case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
+ if (value == 0 && index != 0x81) { /* clear ep halt */
+ goto fail;
+ }
+ ret = 0;
+ break;
case DeviceOutRequest | USB_REQ_SET_FEATURE:
if (value == USB_DEVICE_REMOTE_WAKEUP) {
dev->remote_wakeup = 1;
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
switch(value >> 8) {
case USB_DT_DEVICE:
- memcpy(data, qemu_hub_dev_descriptor,
+ memcpy(data, qemu_hub_dev_descriptor,
sizeof(qemu_hub_dev_descriptor));
ret = sizeof(qemu_hub_dev_descriptor);
break;
case USB_DT_CONFIG:
- memcpy(data, qemu_hub_config_descriptor,
+ memcpy(data, qemu_hub_config_descriptor,
sizeof(qemu_hub_config_descriptor));
+
+ /* status change endpoint size based on number
+ * of ports */
+ data[22] = (s->nb_ports + 1 + 7) / 8;
+
ret = sizeof(qemu_hub_config_descriptor);
break;
case USB_DT_STRING:
break;
case PORT_RESET:
if (dev) {
- dev->handle_packet(dev,
- USB_MSG_RESET, 0, 0, NULL, 0);
+ usb_send_msg(dev, USB_MSG_RESET);
port->wPortChange |= PORT_STAT_C_RESET;
/* set enable bit */
port->wPortStatus |= PORT_STAT_ENABLE;
}
break;
case GetHubDescriptor:
- memcpy(data, qemu_hub_hub_descriptor,
- sizeof(qemu_hub_hub_descriptor));
- data[2] = s->nb_ports;
- ret = sizeof(qemu_hub_hub_descriptor);
- break;
+ {
+ unsigned int n, limit, var_hub_size = 0;
+ memcpy(data, qemu_hub_hub_descriptor,
+ sizeof(qemu_hub_hub_descriptor));
+ data[2] = s->nb_ports;
+
+ /* fill DeviceRemovable bits */
+ limit = ((s->nb_ports + 1 + 7) / 8) + 7;
+ for (n = 7; n < limit; n++) {
+ data[n] = 0x00;
+ var_hub_size++;
+ }
+
+ /* fill PortPwrCtrlMask bits */
+ limit = limit + ((s->nb_ports + 7) / 8);
+ for (;n < limit; n++) {
+ data[n] = 0xff;
+ var_hub_size++;
+ }
+
+ ret = sizeof(qemu_hub_hub_descriptor) + var_hub_size;
+ data[0] = ret;
+ break;
+ }
default:
fail:
ret = USB_RET_STALL;
return ret;
}
-static int usb_hub_handle_data(USBDevice *dev, int pid,
- uint8_t devep, uint8_t *data, int len)
+static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
{
USBHubState *s = (USBHubState *)dev;
int ret;
- switch(pid) {
+ switch(p->pid) {
case USB_TOKEN_IN:
- if (devep == 1) {
+ if (p->devep == 1) {
USBHubPort *port;
unsigned int status;
int i, n;
n = (s->nb_ports + 1 + 7) / 8;
- if (n > len)
+ if (p->len == 1) { /* FreeBSD workaround */
+ n = 1;
+ } else if (n > p->len) {
return USB_RET_BABBLE;
+ }
status = 0;
for(i = 0; i < s->nb_ports; i++) {
port = &s->ports[i];
}
if (status != 0) {
for(i = 0; i < n; i++) {
- data[i] = status >> (8 * i);
+ p->data[i] = status >> (8 * i);
}
ret = n;
} else {
- ret = 0;
+ ret = USB_RET_NAK; /* usb11 11.13.1 */
}
} else {
goto fail;
return ret;
}
-static int usb_hub_broadcast_packet(USBHubState *s, int pid,
- uint8_t devaddr, uint8_t devep,
- uint8_t *data, int len)
+static int usb_hub_broadcast_packet(USBHubState *s, USBPacket *p)
{
USBHubPort *port;
USBDevice *dev;
port = &s->ports[i];
dev = port->port.dev;
if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
- ret = dev->handle_packet(dev, pid,
- devaddr, devep,
- data, len);
+ ret = dev->info->handle_packet(dev, p);
if (ret != USB_RET_NODEV) {
return ret;
}
return USB_RET_NODEV;
}
-static int usb_hub_handle_packet(USBDevice *dev, int pid,
- uint8_t devaddr, uint8_t devep,
- uint8_t *data, int len)
+static int usb_hub_handle_packet(USBDevice *dev, USBPacket *p)
{
USBHubState *s = (USBHubState *)dev;
#endif
if (dev->state == USB_STATE_DEFAULT &&
dev->addr != 0 &&
- devaddr != dev->addr &&
- (pid == USB_TOKEN_SETUP ||
- pid == USB_TOKEN_OUT ||
- pid == USB_TOKEN_IN)) {
+ 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, pid, devaddr, devep, data, len);
+ return usb_hub_broadcast_packet(s, p);
}
- return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len);
+ return usb_generic_handle_packet(dev, p);
}
-USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports)
+static void usb_hub_handle_destroy(USBDevice *dev)
{
- USBHubState *s;
- USBHubPort *port;
- int i;
+ USBHubState *s = (USBHubState *)dev;
- if (nb_ports > MAX_PORTS)
- return NULL;
- s = qemu_mallocz(sizeof(USBHubState));
- if (!s)
- return NULL;
- s->dev.speed = USB_SPEED_FULL;
- s->dev.handle_packet = usb_hub_handle_packet;
+ qemu_free(s);
+}
- /* generic USB device init */
- s->dev.handle_reset = usb_hub_handle_reset;
- s->dev.handle_control = usb_hub_handle_control;
- s->dev.handle_data = usb_hub_handle_data;
+static int usb_hub_initfn(USBDevice *dev)
+{
+ USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
+ USBHubPort *port;
+ int i;
- s->nb_ports = nb_ports;
- for(i = 0; i < s->nb_ports; i++) {
+ s->dev.speed = USB_SPEED_FULL,
+ s->nb_ports = MAX_PORTS; /* FIXME: make configurable */
+ for (i = 0; i < s->nb_ports; i++) {
port = &s->ports[i];
+ usb_register_port(usb_bus_from_device(dev),
+ &port->port, s, i, usb_hub_attach);
port->wPortStatus = PORT_STAT_POWER;
port->wPortChange = 0;
- port->port.attach = usb_hub_attach;
- port->port.opaque = s;
- port->port.index = i;
- usb_ports[i] = &port->port;
}
- return (USBDevice *)s;
+ return 0;
+}
+
+static struct USBDeviceInfo hub_info = {
+ .qdev.name = "QEMU USB Hub",
+ .qdev.size = sizeof(USBHubState),
+ .init = usb_hub_initfn,
+ .handle_packet = usb_hub_handle_packet,
+ .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_register_devices(void)
+{
+ usb_qdev_register(&hub_info);
}
+device_init(usb_hub_register_devices)
projects / qemu / blobdiff