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path: root/drivers/usb/host/xhci-hub.c
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Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
-rw-r--r--drivers/usb/host/xhci-hub.c97
1 files changed, 52 insertions, 45 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 4c3788c128df..ee4af076a8fe 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -28,13 +28,20 @@
#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \
PORT_RC | PORT_PLC | PORT_PE)
-static void xhci_hub_descriptor(struct xhci_hcd *xhci,
+static void xhci_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
struct usb_hub_descriptor *desc)
{
int ports;
u16 temp;
- ports = HCS_MAX_PORTS(xhci->hcs_params1);
+ if (hcd->speed == HCD_USB3)
+ ports = xhci->num_usb3_ports;
+ else
+ ports = xhci->num_usb2_ports;
+
+ /* FIXME: return a USB 3.0 hub descriptor if this request was for the
+ * USB3 roothub.
+ */
/* USB 3.0 hubs have a different descriptor, but we fake this for now */
desc->bDescriptorType = 0x29;
@@ -134,18 +141,22 @@ u32 xhci_port_state_to_neutral(u32 state)
/*
* find slot id based on port number.
+ * @port: The one-based port number from one of the two split roothubs.
*/
int xhci_find_slot_id_by_port(struct usb_hcd *hcd, struct xhci_hcd *xhci,
u16 port)
{
int slot_id;
int i;
+ enum usb_device_speed speed;
slot_id = 0;
for (i = 0; i < MAX_HC_SLOTS; i++) {
if (!xhci->devs[i])
continue;
- if (xhci->devs[i]->port == port) {
+ speed = xhci->devs[i]->udev->speed;
+ if (((speed == USB_SPEED_SUPER) == (hcd->speed == HCD_USB3))
+ && xhci->devs[i]->port == port) {
slot_id = i;
break;
}
@@ -226,11 +237,11 @@ void xhci_ring_device(struct xhci_hcd *xhci, int slot_id)
return;
}
-static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex,
- u32 __iomem *addr, u32 port_status)
+static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci,
+ u16 wIndex, u32 __iomem *addr, u32 port_status)
{
/* Don't allow the USB core to disable SuperSpeed ports. */
- if (xhci->port_array[wIndex] == 0x03) {
+ if (hcd->speed == HCD_USB3) {
xhci_dbg(xhci, "Ignoring request to disable "
"SuperSpeed port.\n");
return;
@@ -289,18 +300,16 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
unsigned long flags;
u32 temp, temp1, status;
int retval = 0;
- u32 __iomem *port_array[15 + USB_MAXCHILDREN];
- int i;
+ u32 __iomem **port_array;
int slot_id;
struct xhci_bus_state *bus_state;
- ports = HCS_MAX_PORTS(xhci->hcs_params1);
- for (i = 0; i < ports; i++) {
- if (i < xhci->num_usb3_ports)
- port_array[i] = xhci->usb3_ports[i];
- else
- port_array[i] =
- xhci->usb2_ports[i - xhci->num_usb3_ports];
+ if (hcd->speed == HCD_USB3) {
+ ports = xhci->num_usb3_ports;
+ port_array = xhci->usb3_ports;
+ } else {
+ ports = xhci->num_usb2_ports;
+ port_array = xhci->usb2_ports;
}
bus_state = &xhci->bus_state[hcd_index(hcd)];
@@ -311,7 +320,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
memset(buf, 0, 4);
break;
case GetHubDescriptor:
- xhci_hub_descriptor(xhci, (struct usb_hub_descriptor *) buf);
+ xhci_hub_descriptor(hcd, xhci,
+ (struct usb_hub_descriptor *) buf);
break;
case GetPortStatus:
if (!wIndex || wIndex > ports)
@@ -518,7 +528,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
port_array[wIndex], temp);
break;
case USB_PORT_FEAT_ENABLE:
- xhci_disable_port(xhci, wIndex,
+ xhci_disable_port(hcd, xhci, wIndex,
port_array[wIndex], temp);
break;
default:
@@ -550,16 +560,15 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
int i, retval;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
int ports;
- u32 __iomem *port_array[15 + USB_MAXCHILDREN];
+ u32 __iomem **port_array;
struct xhci_bus_state *bus_state;
- ports = HCS_MAX_PORTS(xhci->hcs_params1);
- for (i = 0; i < ports; i++) {
- if (i < xhci->num_usb3_ports)
- port_array[i] = xhci->usb3_ports[i];
- else
- port_array[i] =
- xhci->usb2_ports[i - xhci->num_usb3_ports];
+ if (hcd->speed == HCD_USB3) {
+ ports = xhci->num_usb3_ports;
+ port_array = xhci->usb3_ports;
+ } else {
+ ports = xhci->num_usb2_ports;
+ port_array = xhci->usb2_ports;
}
bus_state = &xhci->bus_state[hcd_index(hcd)];
@@ -592,19 +601,18 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
int max_ports, port_index;
- u32 __iomem *port_array[15 + USB_MAXCHILDREN];
- int i;
+ u32 __iomem **port_array;
struct xhci_bus_state *bus_state;
unsigned long flags;
- xhci_dbg(xhci, "suspend root hub\n");
- max_ports = HCS_MAX_PORTS(xhci->hcs_params1);
- for (i = 0; i < max_ports; i++) {
- if (i < xhci->num_usb3_ports)
- port_array[i] = xhci->usb3_ports[i];
- else
- port_array[i] =
- xhci->usb2_ports[i - xhci->num_usb3_ports];
+ if (hcd->speed == HCD_USB3) {
+ max_ports = xhci->num_usb3_ports;
+ port_array = xhci->usb3_ports;
+ xhci_dbg(xhci, "suspend USB 3.0 root hub\n");
+ } else {
+ max_ports = xhci->num_usb2_ports;
+ port_array = xhci->usb2_ports;
+ xhci_dbg(xhci, "suspend USB 2.0 root hub\n");
}
bus_state = &xhci->bus_state[hcd_index(hcd)];
@@ -685,20 +693,19 @@ int xhci_bus_resume(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
int max_ports, port_index;
- u32 __iomem *port_array[15 + USB_MAXCHILDREN];
- int i;
+ u32 __iomem **port_array;
struct xhci_bus_state *bus_state;
u32 temp;
unsigned long flags;
- xhci_dbg(xhci, "resume root hub\n");
- max_ports = HCS_MAX_PORTS(xhci->hcs_params1);
- for (i = 0; i < max_ports; i++) {
- if (i < xhci->num_usb3_ports)
- port_array[i] = xhci->usb3_ports[i];
- else
- port_array[i] =
- xhci->usb2_ports[i - xhci->num_usb3_ports];
+ if (hcd->speed == HCD_USB3) {
+ max_ports = xhci->num_usb3_ports;
+ port_array = xhci->usb3_ports;
+ xhci_dbg(xhci, "resume USB 3.0 root hub\n");
+ } else {
+ max_ports = xhci->num_usb2_ports;
+ port_array = xhci->usb2_ports;
+ xhci_dbg(xhci, "resume USB 2.0 root hub\n");
}
bus_state = &xhci->bus_state[hcd_index(hcd)];
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-04 19:15:15 +0000