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usb: link packets to endpoints not devices

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Add USBEndpoint for the control endpoint to USBDevices.  Link async
packets to the USBEndpoint instead of the USBDevice.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2011-12-13 15:58:19 +01:00
parent f003397ce9
commit 25d5de7d81
6 changed files with 22 additions and 7 deletions
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3
hw/usb-ehci.c
View File

@ -715,7 +715,8 @@ static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev)
EHCIQueue *q, *tmp;
QTAILQ_FOREACH_SAFE(q, &ehci->queues, next, tmp) {
if (q->packet.owner != dev) {
if (q->packet.owner == NULL ||
q->packet.owner->dev != dev) {
continue;
}
ehci_free_queue(q);

3
hw/usb-musb.c
View File

@ -812,7 +812,8 @@ static void musb_async_cancel_device(MUSBState *s, USBDevice *dev)
for (ep = 0; ep < 16; ep++) {
for (dir = 0; dir < 2; dir++) {
if (s->ep[ep].packey[dir].p.owner != dev) {
if (s->ep[ep].packey[dir].p.owner == NULL ||
s->ep[ep].packey[dir].p.owner->dev != dev) {
continue;
}
usb_cancel_packet(&s->ep[ep].packey[dir].p);

4
hw/usb-ohci.c
View File

@ -1707,7 +1707,9 @@ static void ohci_mem_write(void *opaque,
static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev)
{
if (ohci->async_td && ohci->usb_packet.owner == dev) {
if (ohci->async_td &&
ohci->usb_packet.owner != NULL &&
ohci->usb_packet.owner->dev == dev) {
usb_cancel_packet(&ohci->usb_packet);
ohci->async_td = 0;
}

3
hw/usb-uhci.c
View File

@ -245,7 +245,8 @@ static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev)
UHCIAsync *curr, *n;
QTAILQ_FOREACH_SAFE(curr, &s->async_pending, next, n) {
if (curr->packet.owner != dev) {
if (curr->packet.owner == NULL ||
curr->packet.owner->dev != dev) {
continue;
}
uhci_async_unlink(s, curr);

12
hw/usb.c
View File

@ -329,7 +329,7 @@ int usb_handle_packet(USBDevice *dev, USBPacket *p)
ret = dev->info->handle_packet(dev, p);
if (ret == USB_RET_ASYNC) {
if (p->owner == NULL) {
p->owner = dev;
p->owner = usb_ep_get(dev, p->pid, p->devep);
} else {
/* We'll end up here when usb_handle_packet is called
* recursively due to a hub being in the chain. Nothing
@ -357,7 +357,7 @@ void usb_packet_complete(USBDevice *dev, USBPacket *p)
void usb_cancel_packet(USBPacket * p)
{
assert(p->owner != NULL);
p->owner->info->cancel_packet(p->owner, p);
p->owner->dev->info->cancel_packet(p->owner->dev, p);
p->owner = NULL;
}
@ -419,11 +419,16 @@ void usb_ep_init(USBDevice *dev)
{
int ep;
dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL;
dev->ep_ctl.ifnum = 0;
dev->ep_ctl.dev = dev;
for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) {
dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID;
dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID;
dev->ep_in[ep].ifnum = 0;
dev->ep_out[ep].ifnum = 0;
dev->ep_in[ep].dev = dev;
dev->ep_out[ep].dev = dev;
}
}
@ -472,6 +477,9 @@ void usb_ep_dump(USBDevice *dev)
struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep)
{
struct USBEndpoint *eps = pid == USB_TOKEN_IN ? dev->ep_in : dev->ep_out;
if (ep == 0) {
return &dev->ep_ctl;
}
assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT);
assert(ep > 0 && ep <= USB_MAX_ENDPOINTS);
return eps + ep - 1;

4
hw/usb.h
View File

@ -177,6 +177,7 @@ struct USBEndpoint {
uint8_t type;
uint8_t ifnum;
int max_packet_size;
USBDevice *dev;
};
/* definition of a USB device */
@ -204,6 +205,7 @@ struct USBDevice {
int32_t setup_len;
int32_t setup_index;
USBEndpoint ep_ctl;
USBEndpoint ep_in[USB_MAX_ENDPOINTS];
USBEndpoint ep_out[USB_MAX_ENDPOINTS];
@ -317,7 +319,7 @@ struct USBPacket {
QEMUIOVector iov;
int result; /* transfer length or USB_RET_* status code */
/* Internal use by the USB layer. */
USBDevice *owner;
USBEndpoint *owner;
};
void usb_packet_init(USBPacket *p);