/**
* frees the virtual devices for "xhci_ctrl" pointer passed
*
* @param ptr pointer to "xhci_ctrl" whose virtual devices are to be freed
* @return none
*/
static void xhci_free_virt_devices(struct xhci_ctrl *ctrl)
{
int i;
int slot_id;
struct xhci_virt_device *virt_dev;
/*
* refactored here to loop through all virt_dev
* Slot ID 0 is reserved
*/
for (slot_id = 0; slot_id < MAX_HC_SLOTS; slot_id++) {
virt_dev = ctrl->devs[slot_id];
if (!virt_dev)
continue;
ctrl->dcbaa->dev_context_ptrs[slot_id] = 0;
for (i = 0; i < 31; ++i)
if (virt_dev->eps[i].ring)
xhci_ring_free(virt_dev->eps[i].ring);
if (virt_dev->in_ctx)
xhci_free_container_ctx(virt_dev->in_ctx);
if (virt_dev->out_ctx)
xhci_free_container_ctx(virt_dev->out_ctx);
free(virt_dev);
/* make sure we are pointing to NULL */
ctrl->devs[slot_id] = NULL;
}
}
/* All the xhci_tds in the ring's TD list should be freed at this point */
void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
{
struct xhci_virt_device *dev;
int i;
/* Slot ID 0 is reserved */
if (slot_id == 0 || !xhci->devs[slot_id])
return;
dev = xhci->devs[slot_id];
xhci->dcbaa->dev_context_ptrs[slot_id] = 0;
if (!dev)
return;
for (i = 0; i < 31; ++i)
if (dev->eps[i].ring)
xhci_ring_free(xhci, dev->eps[i].ring);
if (dev->ring_cache) {
for (i = 0; i < dev->num_rings_cached; i++)
xhci_ring_free(xhci, dev->ring_cache[i]);
kfree(dev->ring_cache);
}
if (dev->in_ctx)
xhci_free_container_ctx(xhci, dev->in_ctx);
if (dev->out_ctx)
xhci_free_container_ctx(xhci, dev->out_ctx);
kfree(xhci->devs[slot_id]);
xhci->devs[slot_id] = 0;
}
/* All the xhci_tds in the ring's TD list should be freed at this point */
void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
{
struct xhci_virt_device *dev;
int i;
/* Slot ID 0 is reserved */
if (slot_id == 0 || !xhci->devs[slot_id])
return;
dev = xhci->devs[slot_id];
xhci->dcbaa->dev_context_ptrs[slot_id] = 0;
UBI_DMA_FLUSH(&xhci->dcbaa->dev_context_ptrs[slot_id], sizeof(u64));
if (!dev)
return;
for (i = 0; i < 31; ++i)
if (dev->ep_rings[i])
xhci_ring_free(xhci, dev->ep_rings[i]);
if (dev->in_ctx)
xhci_free_container_ctx(xhci, dev->in_ctx);
if (dev->out_ctx)
xhci_free_container_ctx(xhci, dev->out_ctx);
kfree(xhci->devs[slot_id]);
xhci->devs[slot_id] = 0;
}
