In order to make xhci_hub_control() easier to read,
let's break it into smaller functions. This will aid
maintainability and readability of the code. There
are no functional changes here, just shuffling code
around.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-hub.c | 652 ++++++++++++++++++++++++--------------------
1 file changed, 363 insertions(+), 289 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index dd6de282e48f..b99f06f4c421 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -873,17 +873,97 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
return status;
}
-int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+static int xhci_ctrl_get_hub_status(struct usb_hcd *hcd, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
+ /* No power source, over-current reported per port */
+ memset(buf, 0, 4);
+ return 0;
+}
+
+static int xhci_ctrl_get_hub_descriptor(struct usb_hcd *hcd, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ /* Check to make sure userspace is asking for the USB 3.0 hub
+ * descriptor for the USB 3.0 roothub. If not, we stall the
+ * endpoint, like external hubs do.
+ */
+ if (hcd->speed >= HCD_USB3 &&
+ (wLength < USB_DT_SS_HUB_SIZE ||
+ wValue != (USB_DT_SS_HUB << 8))) {
+ xhci_dbg(xhci, "Wrong hub descriptor type for "
+ "USB 3.0 roothub.\n");
+ return -EPIPE;
+ }
+ xhci_hub_descriptor(hcd, xhci,
+ (struct usb_hub_descriptor *) buf);
+
+ return 0;
+}
+
+static int xhci_ctrl_get_port_status(struct usb_hcd *hcd, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength, unsigned long flags)
+{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct xhci_bus_state *bus_state;
+
+ u32 status;
+ u32 temp;
+
int max_ports;
- unsigned long flags;
- u32 temp, status;
- int retval = 0;
+
__le32 __iomem **port_array;
- int slot_id;
+
+ max_ports = xhci_get_ports(hcd, &port_array);
+ bus_state = &xhci->bus_state[hcd_index(hcd)];
+
+ if (!wIndex || wIndex > max_ports)
+ return -EINVAL;
+
+ wIndex--;
+ temp = readl(port_array[wIndex]);
+ if (temp == 0xffffffff)
+ return -ENODEV;
+ status = xhci_get_port_status(hcd, bus_state, port_array,
+ wIndex, temp, flags);
+ if (status == 0xffffffff)
+ return -ENODEV;
+
+ xhci_dbg(xhci, "get port status, actual port %d status = 0x%x\n",
+ wIndex, temp);
+ xhci_dbg(xhci, "Get port status returned 0x%x\n", status);
+
+ put_unaligned(cpu_to_le32(status), (__le32 *) buf);
+ /* if USB 3.1 extended port status return additional 4 bytes */
+ if (wValue == 0x02) {
+ u32 port_li;
+
+ if (hcd->speed < HCD_USB31 || wLength != 8) {
+ xhci_err(xhci, "get ext port status invalid parameter\n");
+ return -EINVAL;
+ }
+ port_li = readl(port_array[wIndex] + PORTLI);
+ status = xhci_get_ext_port_status(temp, port_li);
+ put_unaligned_le32(cpu_to_le32(status), &buf[4]);
+ }
+
+ return 0;
+}
+
+static int xhci_ctrl_set_port_feature(struct usb_hcd *hcd, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength, unsigned long flags)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_bus_state *bus_state;
+
+ int max_ports;
+ int slot_id;
+ u32 temp;
+
+ __le32 __iomem **port_array;
+
u16 link_state = 0;
u16 wake_mask = 0;
u16 timeout = 0;
@@ -891,328 +971,322 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
max_ports = xhci_get_ports(hcd, &port_array);
bus_state = &xhci->bus_state[hcd_index(hcd)];
- spin_lock_irqsave(&xhci->lock, flags);
- switch (typeReq) {
- case GetHubStatus:
- /* No power source, over-current reported per port */
- memset(buf, 0, 4);
- break;
- case GetHubDescriptor:
- /* Check to make sure userspace is asking for the USB 3.0 hub
- * descriptor for the USB 3.0 roothub. If not, we stall the
- * endpoint, like external hubs do.
+ if (wValue == USB_PORT_FEAT_LINK_STATE)
+ link_state = (wIndex & 0xff00) >> 3;
+ if (wValue == USB_PORT_FEAT_REMOTE_WAKE_MASK)
+ wake_mask = wIndex & 0xff00;
+ /* The MSB of wIndex is the U1/U2 timeout */
+ timeout = (wIndex & 0xff00) >> 8;
+ wIndex &= 0xff;
+ if (!wIndex || wIndex > max_ports)
+ return -EPIPE;
+
+ wIndex--;
+ temp = readl(port_array[wIndex]);
+ if (temp == 0xffffffff)
+ return -ENODEV;
+
+ temp = xhci_port_state_to_neutral(temp);
+ /* FIXME: What new port features do we need to support? */
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ temp = readl(port_array[wIndex]);
+ if ((temp & PORT_PLS_MASK) != XDEV_U0) {
+ /* Resume the port to U0 first */
+ xhci_set_link_state(xhci, port_array, wIndex,
+ XDEV_U0);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ msleep(10);
+ spin_lock_irqsave(&xhci->lock, flags);
+ }
+ /* In spec software should not attempt to suspend
+ * a port unless the port reports that it is in the
+ * enabled (PED = ‘1’,PLS < ‘3’) state.
*/
- if (hcd->speed >= HCD_USB3 &&
- (wLength < USB_DT_SS_HUB_SIZE ||
- wValue != (USB_DT_SS_HUB << 8))) {
- xhci_dbg(xhci, "Wrong hub descriptor type for "
- "USB 3.0 roothub.\n");
- goto error;
+ temp = readl(port_array[wIndex]);
+ if ((temp & PORT_PE) == 0 || (temp & PORT_RESET)
+ || (temp & PORT_PLS_MASK) >= XDEV_U3) {
+ xhci_warn(xhci, "USB core suspending device "
+ "not in U0/U1/U2.\n");
+ return -EPIPE;
}
- xhci_hub_descriptor(hcd, xhci,
- (struct usb_hub_descriptor *) buf);
- break;
- case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
- if ((wValue & 0xff00) != (USB_DT_BOS << 8))
- goto error;
- if (hcd->speed < HCD_USB3)
- goto error;
-
- retval = xhci_create_usb3_bos_desc(xhci, buf, wLength);
- spin_unlock_irqrestore(&xhci->lock, flags);
- return retval;
- case GetPortStatus:
- if (!wIndex || wIndex > max_ports)
- goto error;
- wIndex--;
- temp = readl(port_array[wIndex]);
- if (temp == 0xffffffff) {
- retval = -ENODEV;
- break;
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci,
+ wIndex + 1);
+ if (!slot_id) {
+ xhci_warn(xhci, "slot_id is zero\n");
+ return -EPIPE;
}
- status = xhci_get_port_status(hcd, bus_state, port_array,
- wIndex, temp, flags);
- if (status == 0xffffffff)
- goto error;
+ /* unlock to execute stop endpoint commands */
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_stop_device(xhci, slot_id, 1);
+ spin_lock_irqsave(&xhci->lock, flags);
- xhci_dbg(xhci, "get port status, actual port %d status = 0x%x\n",
- wIndex, temp);
- xhci_dbg(xhci, "Get port status returned 0x%x\n", status);
+ xhci_set_link_state(xhci, port_array, wIndex, XDEV_U3);
- put_unaligned(cpu_to_le32(status), (__le32 *) buf);
- /* if USB 3.1 extended port status return additional 4 bytes */
- if (wValue == 0x02) {
- u32 port_li;
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ msleep(10); /* wait device to enter */
+ spin_lock_irqsave(&xhci->lock, flags);
- if (hcd->speed < HCD_USB31 || wLength != 8) {
- xhci_err(xhci, "get ext port status invalid parameter\n");
- retval = -EINVAL;
- break;
- }
- port_li = readl(port_array[wIndex] + PORTLI);
- status = xhci_get_ext_port_status(temp, port_li);
- put_unaligned_le32(cpu_to_le32(status), &buf[4]);
- }
+ temp = readl(port_array[wIndex]);
+ bus_state->suspended_ports |= 1 << wIndex;
break;
- case SetPortFeature:
- if (wValue == USB_PORT_FEAT_LINK_STATE)
- link_state = (wIndex & 0xff00) >> 3;
- if (wValue == USB_PORT_FEAT_REMOTE_WAKE_MASK)
- wake_mask = wIndex & 0xff00;
- /* The MSB of wIndex is the U1/U2 timeout */
- timeout = (wIndex & 0xff00) >> 8;
- wIndex &= 0xff;
- if (!wIndex || wIndex > max_ports)
- goto error;
- wIndex--;
+ case USB_PORT_FEAT_LINK_STATE:
temp = readl(port_array[wIndex]);
- if (temp == 0xffffffff) {
- retval = -ENODEV;
+
+ /* Disable port */
+ if (link_state == USB_SS_PORT_LS_SS_DISABLED) {
+ xhci_dbg(xhci, "Disable port %d\n", wIndex);
+ temp = xhci_port_state_to_neutral(temp);
+ /*
+ * Clear all change bits, so that we get a new
+ * connection event.
+ */
+ temp |= PORT_CSC | PORT_PEC | PORT_WRC |
+ PORT_OCC | PORT_RC | PORT_PLC |
+ PORT_CEC;
+ writel(temp | PORT_PE, port_array[wIndex]);
+ temp = readl(port_array[wIndex]);
break;
}
- temp = xhci_port_state_to_neutral(temp);
- /* FIXME: What new port features do we need to support? */
- switch (wValue) {
- case USB_PORT_FEAT_SUSPEND:
- temp = readl(port_array[wIndex]);
- if ((temp & PORT_PLS_MASK) != XDEV_U0) {
- /* Resume the port to U0 first */
- xhci_set_link_state(xhci, port_array, wIndex,
- XDEV_U0);
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(10);
- spin_lock_irqsave(&xhci->lock, flags);
- }
- /* In spec software should not attempt to suspend
- * a port unless the port reports that it is in the
- * enabled (PED = ‘1’,PLS < ‘3’) state.
- */
+
+ /* Put link in RxDetect (enable port) */
+ if (link_state == USB_SS_PORT_LS_RX_DETECT) {
+ xhci_dbg(xhci, "Enable port %d\n", wIndex);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ link_state);
temp = readl(port_array[wIndex]);
- if ((temp & PORT_PE) == 0 || (temp & PORT_RESET)
- || (temp & PORT_PLS_MASK) >= XDEV_U3) {
- xhci_warn(xhci, "USB core suspending device "
- "not in U0/U1/U2.\n");
- goto error;
- }
+ break;
+ }
+
+ /* Software should not attempt to set
+ * port link state above '3' (U3) and the port
+ * must be enabled.
+ */
+ if ((temp & PORT_PE) == 0 ||
+ (link_state > USB_SS_PORT_LS_U3)) {
+ xhci_warn(xhci, "Cannot set link state.\n");
+ return -EPIPE;
+ }
+ if (link_state == USB_SS_PORT_LS_U3) {
slot_id = xhci_find_slot_id_by_port(hcd, xhci,
wIndex + 1);
- if (!slot_id) {
- xhci_warn(xhci, "slot_id is zero\n");
- goto error;
+ if (slot_id) {
+ /* unlock to execute stop endpoint
+ * commands */
+ spin_unlock_irqrestore(&xhci->lock,
+ flags);
+ xhci_stop_device(xhci, slot_id, 1);
+ spin_lock_irqsave(&xhci->lock, flags);
}
- /* unlock to execute stop endpoint commands */
- spin_unlock_irqrestore(&xhci->lock, flags);
- xhci_stop_device(xhci, slot_id, 1);
- spin_lock_irqsave(&xhci->lock, flags);
+ }
- xhci_set_link_state(xhci, port_array, wIndex, XDEV_U3);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ link_state);
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(10); /* wait device to enter */
- spin_lock_irqsave(&xhci->lock, flags);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ msleep(20); /* wait device to enter */
+ spin_lock_irqsave(&xhci->lock, flags);
- temp = readl(port_array[wIndex]);
+ temp = readl(port_array[wIndex]);
+ if (link_state == USB_SS_PORT_LS_U3)
bus_state->suspended_ports |= 1 << wIndex;
- break;
- case USB_PORT_FEAT_LINK_STATE:
- temp = readl(port_array[wIndex]);
+ break;
+ case USB_PORT_FEAT_POWER:
+ /*
+ * Turn on ports, even if there isn't per-port switching.
+ * HC will report connect events even before this is set.
+ * However, hub_wq will ignore the roothub events until
+ * the roothub is registered.
+ */
+ writel(temp | PORT_POWER, port_array[wIndex]);
- /* Disable port */
- if (link_state == USB_SS_PORT_LS_SS_DISABLED) {
- xhci_dbg(xhci, "Disable port %d\n", wIndex);
- temp = xhci_port_state_to_neutral(temp);
- /*
- * Clear all change bits, so that we get a new
- * connection event.
- */
- temp |= PORT_CSC | PORT_PEC | PORT_WRC |
- PORT_OCC | PORT_RC | PORT_PLC |
- PORT_CEC;
- writel(temp | PORT_PE, port_array[wIndex]);
- temp = readl(port_array[wIndex]);
- break;
- }
+ temp = readl(port_array[wIndex]);
+ xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp);
- /* Put link in RxDetect (enable port) */
- if (link_state == USB_SS_PORT_LS_RX_DETECT) {
- xhci_dbg(xhci, "Enable port %d\n", wIndex);
- xhci_set_link_state(xhci, port_array, wIndex,
- link_state);
- temp = readl(port_array[wIndex]);
- break;
- }
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ temp = usb_acpi_power_manageable(hcd->self.root_hub,
+ wIndex);
+ if (temp)
+ usb_acpi_set_power_state(hcd->self.root_hub,
+ wIndex, true);
+ spin_lock_irqsave(&xhci->lock, flags);
+ break;
+ case USB_PORT_FEAT_RESET:
+ temp = (temp | PORT_RESET);
+ writel(temp, port_array[wIndex]);
- /* Software should not attempt to set
- * port link state above '3' (U3) and the port
- * must be enabled.
- */
- if ((temp & PORT_PE) == 0 ||
- (link_state > USB_SS_PORT_LS_U3)) {
- xhci_warn(xhci, "Cannot set link state.\n");
- goto error;
- }
+ temp = readl(port_array[wIndex]);
+ xhci_dbg(xhci, "set port reset, actual port %d status = 0x%x\n", wIndex, temp);
+ break;
+ case USB_PORT_FEAT_REMOTE_WAKE_MASK:
+ xhci_set_remote_wake_mask(xhci, port_array,
+ wIndex, wake_mask);
+ temp = readl(port_array[wIndex]);
+ xhci_dbg(xhci, "set port remote wake mask, "
+ "actual port %d status = 0x%x\n",
+ wIndex, temp);
+ break;
+ case USB_PORT_FEAT_BH_PORT_RESET:
+ temp |= PORT_WR;
+ writel(temp, port_array[wIndex]);
- if (link_state == USB_SS_PORT_LS_U3) {
- slot_id = xhci_find_slot_id_by_port(hcd, xhci,
- wIndex + 1);
- if (slot_id) {
- /* unlock to execute stop endpoint
- * commands */
- spin_unlock_irqrestore(&xhci->lock,
- flags);
- xhci_stop_device(xhci, slot_id, 1);
- spin_lock_irqsave(&xhci->lock, flags);
- }
- }
+ temp = readl(port_array[wIndex]);
+ break;
+ case USB_PORT_FEAT_U1_TIMEOUT:
+ if (hcd->speed < HCD_USB3)
+ return -EPIPE;
+ temp = readl(port_array[wIndex] + PORTPMSC);
+ temp &= ~PORT_U1_TIMEOUT_MASK;
+ temp |= PORT_U1_TIMEOUT(timeout);
+ writel(temp, port_array[wIndex] + PORTPMSC);
+ break;
+ case USB_PORT_FEAT_U2_TIMEOUT:
+ if (hcd->speed < HCD_USB3)
+ return -EPIPE;
+ temp = readl(port_array[wIndex] + PORTPMSC);
+ temp &= ~PORT_U2_TIMEOUT_MASK;
+ temp |= PORT_U2_TIMEOUT(timeout);
+ writel(temp, port_array[wIndex] + PORTPMSC);
+ break;
+ default:
+ return -EPIPE;
+ }
+ /* unblock any posted writes */
+ temp = readl(port_array[wIndex]);
- xhci_set_link_state(xhci, port_array, wIndex,
- link_state);
+ return 0;
+}
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(20); /* wait device to enter */
- spin_lock_irqsave(&xhci->lock, flags);
+static int xhci_ctrl_clear_port_feature(struct usb_hcd *hcd, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength, unsigned long flags)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct xhci_bus_state *bus_state;
- temp = readl(port_array[wIndex]);
- if (link_state == USB_SS_PORT_LS_U3)
- bus_state->suspended_ports |= 1 << wIndex;
- break;
- case USB_PORT_FEAT_POWER:
- /*
- * Turn on ports, even if there isn't per-port switching.
- * HC will report connect events even before this is set.
- * However, hub_wq will ignore the roothub events until
- * the roothub is registered.
- */
- writel(temp | PORT_POWER, port_array[wIndex]);
+ int max_ports;
+ int slot_id;
+ u32 temp;
- temp = readl(port_array[wIndex]);
- xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp);
+ __le32 __iomem **port_array;
+
+ max_ports = xhci_get_ports(hcd, &port_array);
+ bus_state = &xhci->bus_state[hcd_index(hcd)];
+
+ if (!wIndex || wIndex > max_ports)
+ return -EPIPE;
+ wIndex--;
+ temp = readl(port_array[wIndex]);
+ if (temp == 0xffffffff)
+ return -ENODEV;
+
+ /* FIXME: What new port features do we need to support? */
+ temp = xhci_port_state_to_neutral(temp);
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ temp = readl(port_array[wIndex]);
+ xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n");
+ xhci_dbg(xhci, "PORTSC %04x\n", temp);
+ if (temp & PORT_RESET)
+ return -EPIPE;
+ if ((temp & PORT_PLS_MASK) == XDEV_U3) {
+ if ((temp & PORT_PE) == 0)
+ return -EPIPE;
+
+ set_bit(wIndex, &bus_state->resuming_ports);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ XDEV_RESUME);
spin_unlock_irqrestore(&xhci->lock, flags);
- temp = usb_acpi_power_manageable(hcd->self.root_hub,
- wIndex);
- if (temp)
- usb_acpi_set_power_state(hcd->self.root_hub,
- wIndex, true);
+ msleep(20);
spin_lock_irqsave(&xhci->lock, flags);
- break;
- case USB_PORT_FEAT_RESET:
- temp = (temp | PORT_RESET);
- writel(temp, port_array[wIndex]);
-
- temp = readl(port_array[wIndex]);
- xhci_dbg(xhci, "set port reset, actual port %d status = 0x%x\n", wIndex, temp);
- break;
- case USB_PORT_FEAT_REMOTE_WAKE_MASK:
- xhci_set_remote_wake_mask(xhci, port_array,
- wIndex, wake_mask);
- temp = readl(port_array[wIndex]);
- xhci_dbg(xhci, "set port remote wake mask, "
- "actual port %d status = 0x%x\n",
- wIndex, temp);
- break;
- case USB_PORT_FEAT_BH_PORT_RESET:
- temp |= PORT_WR;
- writel(temp, port_array[wIndex]);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ XDEV_U0);
+ clear_bit(wIndex, &bus_state->resuming_ports);
+ }
+ bus_state->port_c_suspend |= 1 << wIndex;
- temp = readl(port_array[wIndex]);
- break;
- case USB_PORT_FEAT_U1_TIMEOUT:
- if (hcd->speed < HCD_USB3)
- goto error;
- temp = readl(port_array[wIndex] + PORTPMSC);
- temp &= ~PORT_U1_TIMEOUT_MASK;
- temp |= PORT_U1_TIMEOUT(timeout);
- writel(temp, port_array[wIndex] + PORTPMSC);
- break;
- case USB_PORT_FEAT_U2_TIMEOUT:
- if (hcd->speed < HCD_USB3)
- goto error;
- temp = readl(port_array[wIndex] + PORTPMSC);
- temp &= ~PORT_U2_TIMEOUT_MASK;
- temp |= PORT_U2_TIMEOUT(timeout);
- writel(temp, port_array[wIndex] + PORTPMSC);
- break;
- default:
- goto error;
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci,
+ wIndex + 1);
+ if (!slot_id) {
+ xhci_dbg(xhci, "slot_id is zero\n");
+ return -EPIPE;
}
- /* unblock any posted writes */
- temp = readl(port_array[wIndex]);
+ xhci_ring_device(xhci, slot_id);
break;
- case ClearPortFeature:
- if (!wIndex || wIndex > max_ports)
- goto error;
- wIndex--;
- temp = readl(port_array[wIndex]);
- if (temp == 0xffffffff) {
- retval = -ENODEV;
- break;
- }
- /* FIXME: What new port features do we need to support? */
- temp = xhci_port_state_to_neutral(temp);
- switch (wValue) {
- case USB_PORT_FEAT_SUSPEND:
- temp = readl(port_array[wIndex]);
- xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n");
- xhci_dbg(xhci, "PORTSC %04x\n", temp);
- if (temp & PORT_RESET)
- goto error;
- if ((temp & PORT_PLS_MASK) == XDEV_U3) {
- if ((temp & PORT_PE) == 0)
- goto error;
+ case USB_PORT_FEAT_C_SUSPEND:
+ bus_state->port_c_suspend &= ~(1 << wIndex);
+ case USB_PORT_FEAT_C_RESET:
+ case USB_PORT_FEAT_C_BH_PORT_RESET:
+ case USB_PORT_FEAT_C_CONNECTION:
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ case USB_PORT_FEAT_C_ENABLE:
+ case USB_PORT_FEAT_C_PORT_LINK_STATE:
+ case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
+ xhci_clear_port_change_bit(xhci, wValue, wIndex,
+ port_array[wIndex], temp);
+ break;
+ case USB_PORT_FEAT_ENABLE:
+ xhci_disable_port(hcd, xhci, wIndex,
+ port_array[wIndex], temp);
+ break;
+ case USB_PORT_FEAT_POWER:
+ writel(temp & ~PORT_POWER, port_array[wIndex]);
- set_bit(wIndex, &bus_state->resuming_ports);
- xhci_set_link_state(xhci, port_array, wIndex,
- XDEV_RESUME);
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(USB_RESUME_TIMEOUT);
- spin_lock_irqsave(&xhci->lock, flags);
- xhci_set_link_state(xhci, port_array, wIndex,
- XDEV_U0);
- clear_bit(wIndex, &bus_state->resuming_ports);
- }
- bus_state->port_c_suspend |= 1 << wIndex;
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ temp = usb_acpi_power_manageable(hcd->self.root_hub,
+ wIndex);
+ if (temp)
+ usb_acpi_set_power_state(hcd->self.root_hub,
+ wIndex, false);
+ spin_lock_irqsave(&xhci->lock, flags);
+ break;
+ default:
+ return -EPIPE;
+ }
- slot_id = xhci_find_slot_id_by_port(hcd, xhci,
- wIndex + 1);
- if (!slot_id) {
- xhci_dbg(xhci, "slot_id is zero\n");
- goto error;
- }
- xhci_ring_device(xhci, slot_id);
- break;
- case USB_PORT_FEAT_C_SUSPEND:
- bus_state->port_c_suspend &= ~(1 << wIndex);
- case USB_PORT_FEAT_C_RESET:
- case USB_PORT_FEAT_C_BH_PORT_RESET:
- case USB_PORT_FEAT_C_CONNECTION:
- case USB_PORT_FEAT_C_OVER_CURRENT:
- case USB_PORT_FEAT_C_ENABLE:
- case USB_PORT_FEAT_C_PORT_LINK_STATE:
- case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
- xhci_clear_port_change_bit(xhci, wValue, wIndex,
- port_array[wIndex], temp);
- break;
- case USB_PORT_FEAT_ENABLE:
- xhci_disable_port(hcd, xhci, wIndex,
- port_array[wIndex], temp);
- break;
- case USB_PORT_FEAT_POWER:
- writel(temp & ~PORT_POWER, port_array[wIndex]);
+ return 0;
+}
- spin_unlock_irqrestore(&xhci->lock, flags);
- temp = usb_acpi_power_manageable(hcd->self.root_hub,
- wIndex);
- if (temp)
- usb_acpi_set_power_state(hcd->self.root_hub,
- wIndex, false);
- spin_lock_irqsave(&xhci->lock, flags);
- break;
- default:
+int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ unsigned long flags;
+ int retval = 0;
+
+ spin_lock_irqsave(&xhci->lock, flags);
+ switch (typeReq) {
+ case GetHubStatus:
+ retval = xhci_ctrl_get_hub_status(hcd, wValue, wIndex, buf,
+ wLength);
+ break;
+ case GetHubDescriptor:
+ retval = xhci_ctrl_get_hub_descriptor(hcd, wValue, wIndex, buf,
+ wLength);
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ if ((wValue & 0xff00) != (USB_DT_BOS << 8))
goto error;
- }
+
+ if (hcd->speed < HCD_USB3)
+ goto error;
+
+ retval = xhci_create_usb3_bos_desc(xhci, buf, wLength);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return retval;
+ case GetPortStatus:
+ retval = xhci_ctrl_get_port_status(hcd, wValue, wIndex, buf,
+ wLength, flags);
+ break;
+ case SetPortFeature:
+ retval = xhci_ctrl_set_port_feature(hcd, wValue, wIndex, buf,
+ wLength, flags);
+ break;
+ case ClearPortFeature:
+ retval = xhci_ctrl_clear_port_feature(hcd, wValue, wIndex, buf,
+ wLength, flags);
break;
default:
error:
--
2.11.0
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