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DM USB: xHCI: fix USB hub disconnection issue

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When USB hub is disconnected, its connection status is not cleared
in the DM, this defect will cause the related assigned port could
not be used any more.

This patch is used fix this issue.

Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
Tracked-On: #1365
This commit is contained in:
Xiaoguang Wu
2018-09-25 21:00:48 +08:00
committed by lijinxia
parent 0d4a88e620
commit 6c9bae6170
2 changed files with 44 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
devicemodel/hw/pci/xhci.c
View File

@@ -630,7 +630,7 @@ pci_xhci_native_usb_dev_disconn_cb(void *hci_data, void *dev_data)
struct pci_xhci_dev_emu *edev;
struct usb_native_devinfo di;
struct usb_dev *udev;
uint8_t port, slot, native_port;
uint8_t port, slot;
uint8_t status;
int need_intr = 1;
@@ -640,26 +640,47 @@ pci_xhci_native_usb_dev_disconn_cb(void *hci_data, void *dev_data)
xdev = hci_data;
assert(xdev->devices);
native_port = *((uint8_t *)dev_data);
if (!pci_xhci_is_valid_portnum(native_port)) {
UPRINTF(LFTL, "invalid physical port %d\r\n", native_port);
di = *((struct usb_native_devinfo *)dev_data);
if (!pci_xhci_is_valid_portnum(di.port)) {
UPRINTF(LFTL, "invalid physical port %d\r\n", di.port);
return -1;
}
status = VPORT_STATE(xdev->port_map_tbl[di.bus][di.port]);
if (status == VPORT_HUB_CONNECTED) {
xdev->port_map_tbl[di.bus][di.port] =
VPORT_NUM_STATE(VPORT_ASSIGNED, 0);
return 0;
}
for (port = 1; port <= XHCI_MAX_DEVS; ++port) {
edev = xdev->devices[port];
if (!edev)
continue;
udev = edev->dev_instance;
if (udev->info.port == native_port) {
di = udev->info;
break;
if (udev->info.port == di.port) {
int old_t, new_t;
uint8_t old_ports[7]; /* max USB hub tiers are 7 */
uint8_t new_ports[7];
/* get tiers and port info */
old_t = libusb_get_port_numbers(udev->info.priv_data,
old_ports, sizeof(old_ports));
new_t = libusb_get_port_numbers(di.priv_data,
new_ports, sizeof(new_ports));
if (old_t == new_t &&
!memcmp(old_ports, new_ports, old_t)) {
di = udev->info;
break;
}
UPRINTF(LFTL, "multi-hub is not supported yet\r\n");
}
}
if (port == XHCI_MAX_DEVS + 1) {
UPRINTF(LFTL, "fail to find physical port %d\r\n", native_port);
UPRINTF(LFTL, "fail to find physical port %d\r\n", di.port);
return -1;
}
@@ -667,7 +688,6 @@ pci_xhci_native_usb_dev_disconn_cb(void *hci_data, void *dev_data)
if (xdev->slots[slot] == edev)
break;
status = VPORT_STATE(xdev->port_map_tbl[di.bus][di.port]);
assert(status == VPORT_EMULATED || status == VPORT_CONNECTED);
xdev->port_map_tbl[di.bus][di.port] = VPORT_NUM_STATE(VPORT_ASSIGNED,
0);