--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/usb-hub.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,554 @@
+/*
+ * 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 "usb.h"
+
+//#define DEBUG
+
+#define MAX_PORTS 8
+
+typedef struct USBHubPort {
+ USBPort port;
+ uint16_t wPortStatus;
+ uint16_t wPortChange;
+} USBHubPort;
+
+typedef struct USBHubState {
+ USBDevice dev;
+ int nb_ports;
+ USBHubPort ports[MAX_PORTS];
+} USBHubState;
+
+#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 */
+
+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; */
+ 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
+ *
+ * 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 */
+ 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, 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)
+ port->wPortStatus |= PORT_STAT_LOW_SPEED;
+ 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_CONNECTION;
+ port->wPortChange |= PORT_STAT_C_CONNECTION;
+ if (port->wPortStatus & PORT_STAT_ENABLE) {
+ 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;
+ }
+ }
+}
+
+static void usb_hub_handle_reset(USBDevice *dev)
+{
+ /* XXX: do it */
+}
+
+static int usb_hub_handle_control(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data)
+{
+ USBHubState *s = (USBHubState *)dev;
+ int ret;
+
+ switch(request) {
+ case DeviceRequest | USB_REQ_GET_STATUS:
+ data[0] = (1 << USB_DEVICE_SELF_POWERED) |
+ (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
+ data[1] = 0x00;
+ ret = 2;
+ break;
+ case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 0;
+ } else {
+ goto fail;
+ }
+ 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;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_ADDRESS:
+ dev->addr = value;
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ switch(value >> 8) {
+ case USB_DT_DEVICE:
+ 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,
+ 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:
+ switch(value & 0xff) {
+ case 0:
+ /* language ids */
+ data[0] = 4;
+ data[1] = 3;
+ data[2] = 0x09;
+ data[3] = 0x04;
+ ret = 4;
+ break;
+ case 1:
+ /* serial number */
+ ret = set_usb_string(data, "314159");
+ break;
+ case 2:
+ /* product description */
+ ret = set_usb_string(data, "QEMU USB Hub");
+ break;
+ case 3:
+ /* vendor description */
+ ret = set_usb_string(data, "QEMU " QEMU_VERSION);
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ case DeviceRequest | USB_REQ_GET_CONFIGURATION:
+ data[0] = 1;
+ ret = 1;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
+ 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;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+ ret = 4;
+ break;
+ case GetPortStatus:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ if (n >= s->nb_ports)
+ goto fail;
+ port = &s->ports[n];
+ data[0] = port->wPortStatus;
+ data[1] = port->wPortStatus >> 8;
+ data[2] = port->wPortChange;
+ data[3] = port->wPortChange >> 8;
+ ret = 4;
+ }
+ break;
+ case SetHubFeature:
+ case ClearHubFeature:
+ if (value == 0 || value == 1) {
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case SetPortFeature:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ USBDevice *dev;
+ if (n >= s->nb_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) {
+ usb_send_msg(dev, USB_MSG_RESET);
+ port->wPortChange |= PORT_STAT_C_RESET;
+ /* set enable bit */
+ port->wPortStatus |= PORT_STAT_ENABLE;
+ }
+ break;
+ case PORT_POWER:
+ break;
+ default:
+ goto fail;
+ }
+ ret = 0;
+ }
+ break;
+ case ClearPortFeature:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ USBDevice *dev;
+ if (n >= s->nb_ports)
+ goto fail;
+ port = &s->ports[n];
+ dev = port->port.dev;
+ 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;
+ }
+ ret = 0;
+ }
+ break;
+ case GetHubDescriptor:
+ {
+ 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;
+ break;
+ }
+ return ret;
+}
+
+static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBHubState *s = (USBHubState *)dev;
+ int ret;
+
+ switch(p->pid) {
+ case USB_TOKEN_IN:
+ if (p->devep == 1) {
+ USBHubPort *port;
+ unsigned int status;
+ int i, n;
+ n = (s->nb_ports + 1 + 7) / 8;
+ 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 (port->wPortChange)
+ status |= (1 << (i + 1));
+ }
+ if (status != 0) {
+ for(i = 0; i < n; i++) {
+ p->data[i] = status >> (8 * i);
+ }
+ ret = n;
+ } else {
+ ret = USB_RET_NAK; /* usb11 11.13.1 */
+ }
+ } else {
+ goto fail;
+ }
+ break;
+ case USB_TOKEN_OUT:
+ default:
+ fail:
+ ret = USB_RET_STALL;
+ break;
+ }
+ return ret;
+}
+
+static int usb_hub_broadcast_packet(USBHubState *s, USBPacket *p)
+{
+ USBHubPort *port;
+ USBDevice *dev;
+ int i, ret;
+
+ for(i = 0; i < s->nb_ports; i++) {
+ port = &s->ports[i];
+ dev = port->port.dev;
+ if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
+ ret = dev->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;
+
+ qemu_free(s);
+}
+
+USBDevice *usb_hub_init(int nb_ports)
+{
+ USBHubState *s;
+ USBHubPort *port;
+ int i;
+
+ 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;
+
+ /* 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;
+ s->dev.handle_destroy = usb_hub_handle_destroy;
+
+ pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Hub");
+
+ s->nb_ports = nb_ports;
+ for(i = 0; i < s->nb_ports; i++) {
+ port = &s->ports[i];
+ qemu_register_usb_port(&port->port, s, i, usb_hub_attach);
+ port->wPortStatus = PORT_STAT_POWER;
+ port->wPortChange = 0;
+ }
+ return (USBDevice *)s;
+}