* QEMU USB emulation
*
* Copyright (c) 2005 Fabrice Bellard
- *
+ *
+ * 2008 Generic packet handler rewrite by Max Krasnyansky
+ *
* 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"
void usb_attach(USBPort *port, USBDevice *dev)
{
}
/**********************/
+
/* generic USB device helpers (you are not forced to use them when
writing your USB device driver, but they help handling the
- protocol)
+ protocol)
*/
#define SETUP_STATE_IDLE 0
#define SETUP_STATE_DATA 1
#define SETUP_STATE_ACK 2
-int usb_generic_handle_packet(USBDevice *s, int pid,
- uint8_t devaddr, uint8_t devep,
- uint8_t *data, int len)
+static int do_token_setup(USBDevice *s, USBPacket *p)
{
- int l, ret = 0;
-
- switch(pid) {
- case USB_MSG_ATTACH:
- s->state = USB_STATE_ATTACHED;
- break;
- case USB_MSG_DETACH:
- s->state = USB_STATE_NOTATTACHED;
- break;
- case USB_MSG_RESET:
- s->remote_wakeup = 0;
- s->addr = 0;
- s->state = USB_STATE_DEFAULT;
- s->handle_reset(s);
- break;
- case USB_TOKEN_SETUP:
- if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
- return USB_RET_NODEV;
- if (len != 8)
- goto fail;
- memcpy(s->setup_buf, data, 8);
- s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
- s->setup_index = 0;
- if (s->setup_buf[0] & USB_DIR_IN) {
- ret = s->handle_control(s,
- (s->setup_buf[0] << 8) | s->setup_buf[1],
- (s->setup_buf[3] << 8) | s->setup_buf[2],
- (s->setup_buf[5] << 8) | s->setup_buf[4],
- s->setup_len,
- s->data_buf);
- if (ret < 0)
- return ret;
- if (ret < s->setup_len)
- s->setup_len = ret;
+ int request, value, index;
+ int ret = 0;
+
+ if (p->len != 8)
+ return USB_RET_STALL;
+
+ memcpy(s->setup_buf, p->data, 8);
+ s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
+ s->setup_index = 0;
+
+ request = (s->setup_buf[0] << 8) | s->setup_buf[1];
+ value = (s->setup_buf[3] << 8) | s->setup_buf[2];
+ index = (s->setup_buf[5] << 8) | s->setup_buf[4];
+
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ ret = s->handle_control(s, request, value, index,
+ s->setup_len, s->data_buf);
+ if (ret < 0)
+ return ret;
+
+ if (ret < s->setup_len)
+ s->setup_len = ret;
+ s->setup_state = SETUP_STATE_DATA;
+ } else {
+ if (s->setup_len == 0)
+ s->setup_state = SETUP_STATE_ACK;
+ else
s->setup_state = SETUP_STATE_DATA;
- } else {
- if (s->setup_len == 0)
- s->setup_state = SETUP_STATE_ACK;
- else
- s->setup_state = SETUP_STATE_DATA;
- }
- break;
- case USB_TOKEN_IN:
- if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
- return USB_RET_NODEV;
- switch(devep) {
- case 0:
- switch(s->setup_state) {
- case SETUP_STATE_ACK:
- s->setup_state = SETUP_STATE_IDLE;
- if (!(s->setup_buf[0] & USB_DIR_IN)) {
- ret = s->handle_control(s,
- (s->setup_buf[0] << 8) | s->setup_buf[1],
- (s->setup_buf[3] << 8) | s->setup_buf[2],
- (s->setup_buf[5] << 8) | s->setup_buf[4],
- s->setup_len,
- s->data_buf);
- if (ret > 0)
- ret = 0;
- } else {
- goto fail;
- }
- break;
- case SETUP_STATE_DATA:
- if (s->setup_buf[0] & USB_DIR_IN) {
- l = s->setup_len - s->setup_index;
- if (l > len)
- l = len;
- memcpy(data, s->data_buf + s->setup_index, l);
- s->setup_index += l;
- if (s->setup_index >= s->setup_len)
- s->setup_state = SETUP_STATE_ACK;
- ret = l;
- } else {
- s->setup_state = SETUP_STATE_IDLE;
- goto fail;
- }
- break;
- default:
- goto fail;
- }
- break;
- default:
- ret = s->handle_data(s, pid, devep, data, len);
- break;
- }
- break;
- case USB_TOKEN_OUT:
- if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
- return USB_RET_NODEV;
- switch(devep) {
- case 0:
- switch(s->setup_state) {
- case SETUP_STATE_ACK:
- s->setup_state = SETUP_STATE_IDLE;
- if (s->setup_buf[0] & USB_DIR_IN) {
- /* transfer OK */
- } else {
- goto fail;
- }
- break;
- case SETUP_STATE_DATA:
- if (!(s->setup_buf[0] & USB_DIR_IN)) {
- l = s->setup_len - s->setup_index;
- if (l > len)
- l = len;
- memcpy(s->data_buf + s->setup_index, data, l);
- s->setup_index += l;
- if (s->setup_index >= s->setup_len)
- s->setup_state = SETUP_STATE_ACK;
- ret = l;
- } else {
- s->setup_state = SETUP_STATE_IDLE;
- goto fail;
- }
- break;
- default:
- goto fail;
- }
- break;
- default:
- ret = s->handle_data(s, pid, devep, data, len);
- break;
- }
- break;
- default:
- fail:
- ret = USB_RET_STALL;
- break;
}
+
return ret;
}
-/* XXX: fix overflow */
-int set_usb_string(uint8_t *buf, const char *str)
+static int do_token_in(USBDevice *s, USBPacket *p)
{
- int len, i;
- uint8_t *q;
+ int request, value, index;
+ int ret = 0;
+
+ if (p->devep != 0)
+ return s->handle_data(s, p);
+
+ request = (s->setup_buf[0] << 8) | s->setup_buf[1];
+ value = (s->setup_buf[3] << 8) | s->setup_buf[2];
+ index = (s->setup_buf[5] << 8) | s->setup_buf[4];
+
+ switch(s->setup_state) {
+ case SETUP_STATE_ACK:
+ if (!(s->setup_buf[0] & USB_DIR_IN)) {
+ s->setup_state = SETUP_STATE_IDLE;
+ ret = s->handle_control(s, request, value, index,
+ s->setup_len, s->data_buf);
+ if (ret > 0)
+ return 0;
+ return ret;
+ }
- q = buf;
- len = strlen(str);
- *q++ = 2 * len + 1;
- *q++ = 3;
- for(i = 0; i < len; i++) {
- *q++ = str[i];
- *q++ = 0;
- }
- return q - buf;
-}
+ /* return 0 byte */
+ return 0;
-/**********************/
-/* USB hub emulation */
-
-//#define DEBUG
-
-#define MAX_PORTS 8
-
-#define DS_IDLE 0
-#define DS_CONTROL_IN 1
-#define DS_CONTROL_OUT 2
-
-typedef struct USBHubPort {
- USBPort port;
- USBDevice *dev;
- 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[] =
-{
- 0x09, /* __u8 bLength; */
- 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 *** */
-};
-
-static void usb_hub_attach(USBPort *port1, USBDevice *dev)
-{
- USBHubState *s = port1->opaque;
- USBHubPort *port = &s->ports[port1->index];
-
- if (dev) {
- if (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->dev = dev;
- } else {
- dev = 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;
- }
- port->dev = NULL;
+ case SETUP_STATE_DATA:
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ int len = s->setup_len - s->setup_index;
+ if (len > p->len)
+ len = p->len;
+ memcpy(p->data, s->data_buf + s->setup_index, len);
+ s->setup_index += len;
+ if (s->setup_index >= s->setup_len)
+ s->setup_state = SETUP_STATE_ACK;
+ return len;
}
+
+ s->setup_state = SETUP_STATE_IDLE;
+ return USB_RET_STALL;
+
+ default:
+ return USB_RET_STALL;
}
}
-static void usb_hub_handle_reset(USBDevice *dev)
+static int do_token_out(USBDevice *s, USBPacket *p)
{
- /* XXX: do it */
-}
+ if (p->devep != 0)
+ return s->handle_data(s, p);
-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 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));
- 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) {
+ switch(s->setup_state) {
+ case SETUP_STATE_ACK:
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ s->setup_state = SETUP_STATE_IDLE;
+ /* transfer OK */
} else {
- goto fail;
+ /* ignore additional output */
}
- 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->dev;
- switch(value) {
- case PORT_SUSPEND:
- port->wPortStatus |= PORT_STAT_SUSPEND;
- break;
- case PORT_RESET:
- if (dev) {
- dev->handle_packet(dev,
- USB_MSG_RESET, 0, 0, NULL, 0);
- port->wPortChange |= PORT_STAT_C_RESET;
- /* set enable bit */
- port->wPortChange |= PORT_STAT_C_ENABLE;
- 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->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;
+ return 0;
+
+ case SETUP_STATE_DATA:
+ if (!(s->setup_buf[0] & USB_DIR_IN)) {
+ int len = s->setup_len - s->setup_index;
+ if (len > p->len)
+ len = p->len;
+ memcpy(s->data_buf + s->setup_index, p->data, len);
+ s->setup_index += len;
+ if (s->setup_index >= s->setup_len)
+ s->setup_state = SETUP_STATE_ACK;
+ return len;
}
- 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;
+
+ s->setup_state = SETUP_STATE_IDLE;
+ return USB_RET_STALL;
+
default:
- fail:
- ret = USB_RET_STALL;
+ return USB_RET_STALL;
}
- return ret;
}
-static int usb_hub_handle_data(USBDevice *dev, int pid,
- uint8_t devep, uint8_t *data, int len)
+/*
+ * Generic packet handler.
+ * Called by the HC (host controller).
+ *
+ * Returns length of the transaction or one of the USB_RET_XXX codes.
+ */
+int usb_generic_handle_packet(USBDevice *s, USBPacket *p)
{
- USBHubState *s = (USBHubState *)dev;
- int ret;
+ switch(p->pid) {
+ case USB_MSG_ATTACH:
+ s->state = USB_STATE_ATTACHED;
+ return 0;
+
+ case USB_MSG_DETACH:
+ s->state = USB_STATE_NOTATTACHED;
+ return 0;
+
+ case USB_MSG_RESET:
+ s->remote_wakeup = 0;
+ s->addr = 0;
+ s->state = USB_STATE_DEFAULT;
+ s->handle_reset(s);
+ return 0;
+ }
+
+ /* Rest of the PIDs must match our address */
+ if (s->state < USB_STATE_DEFAULT || p->devaddr != s->addr)
+ return USB_RET_NODEV;
+
+ switch (p->pid) {
+ case USB_TOKEN_SETUP:
+ return do_token_setup(s, p);
- switch(pid) {
case USB_TOKEN_IN:
- if (devep == 1) {
- USBHubPort *port;
- unsigned int status;
- int i, n;
- n = (s->nb_ports + 1 + 7) / 8;
- if (n > 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++) {
- data[i] = status >> (8 * i);
- }
- ret = n;
- } else {
- ret = 0;
- }
- } else {
- goto fail;
- }
- break;
+ return do_token_in(s, p);
+
case USB_TOKEN_OUT:
+ return do_token_out(s, p);
+
default:
- fail:
- ret = USB_RET_STALL;
- break;
+ return USB_RET_STALL;
}
- return ret;
}
-static int usb_hub_broadcast_packet(USBHubState *s, int pid,
- uint8_t devaddr, uint8_t devep,
- uint8_t *data, int len)
+/* XXX: fix overflow */
+int set_usb_string(uint8_t *buf, const char *str)
{
- USBHubPort *port;
- USBDevice *dev;
- int i, ret;
-
- for(i = 0; i < s->nb_ports; i++) {
- port = &s->ports[i];
- dev = port->dev;
- if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
- ret = dev->handle_packet(dev, pid,
- devaddr, devep,
- data, len);
- if (ret != USB_RET_NODEV) {
- return ret;
- }
- }
- }
- return USB_RET_NODEV;
-}
+ int len, i;
+ uint8_t *q;
-static int usb_hub_handle_packet(USBDevice *dev, int pid,
- uint8_t devaddr, uint8_t devep,
- uint8_t *data, int len)
-{
- 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 &&
- devaddr != dev->addr &&
- (pid == USB_TOKEN_SETUP ||
- pid == USB_TOKEN_OUT ||
- pid == USB_TOKEN_IN)) {
- /* broadcast the packet to the devices */
- return usb_hub_broadcast_packet(s, pid, devaddr, devep, data, len);
+ q = buf;
+ len = strlen(str);
+ *q++ = 2 * len + 2;
+ *q++ = 3;
+ for(i = 0; i < len; i++) {
+ *q++ = str[i];
+ *q++ = 0;
}
- return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len);
+ return q - buf;
}
-USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports)
+/* Send an internal message to a USB device. */
+void usb_send_msg(USBDevice *dev, int msg)
{
- 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->nb_ports = nb_ports;
- for(i = 0; i < s->nb_ports; i++) {
- port = &s->ports[i];
- 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;
+ USBPacket p;
+ memset(&p, 0, sizeof(p));
+ p.pid = msg;
+ dev->handle_packet(dev, &p);
+
+ /* This _must_ be synchronous */
}
projects / qemu / blobdiff