diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 3526665575af..b9754784161d 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1194,14 +1194,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 test_mode = 0; struct xhci_hub *rhub; struct xhci_port **ports; - struct xhci_port *port; - int portnum1; rhub = xhci_get_rhub(hcd); ports = rhub->ports; max_ports = rhub->num_ports; bus_state = &rhub->bus_state; - portnum1 = wIndex & 0xff; spin_lock_irqsave(&xhci->lock, flags); switch (typeReq) { @@ -1235,12 +1232,10 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, spin_unlock_irqrestore(&xhci->lock, flags); return retval; case GetPortStatus: - if (!portnum1 || portnum1 > max_ports) + if (!wIndex || wIndex > max_ports) goto error; - wIndex--; - port = ports[portnum1 - 1]; - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if (temp == ~(u32)0) { xhci_hc_died(xhci); retval = -ENODEV; @@ -1253,7 +1248,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; xhci_dbg(xhci, "Get port status %d-%d read: 0x%x, return 0x%x", - hcd->self.busnum, portnum1, temp, status); + hcd->self.busnum, wIndex + 1, temp, status); put_unaligned(cpu_to_le32(status), (__le32 *) buf); /* if USB 3.1 extended port status return additional 4 bytes */ @@ -1265,7 +1260,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, retval = -EINVAL; break; } - port_li = readl(port->addr + PORTLI); + port_li = readl(ports[wIndex]->addr + PORTLI); status = xhci_get_ext_port_status(temp, port_li); put_unaligned_le32(status, &buf[4]); } @@ -1279,14 +1274,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, test_mode = (wIndex & 0xff00) >> 8; /* The MSB of wIndex is the U1/U2 timeout */ timeout = (wIndex & 0xff00) >> 8; - wIndex &= 0xff; - if (!portnum1 || portnum1 > max_ports) + if (!wIndex || wIndex > max_ports) goto error; - - port = ports[portnum1 - 1]; wIndex--; - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if (temp == ~(u32)0) { xhci_hc_died(xhci); retval = -ENODEV; @@ -1296,10 +1288,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* FIXME: What new port features do we need to support? */ switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if ((temp & PORT_PLS_MASK) != XDEV_U0) { /* Resume the port to U0 first */ - xhci_set_link_state(xhci, port, XDEV_U0); + xhci_set_link_state(xhci, ports[wIndex], + XDEV_U0); spin_unlock_irqrestore(&xhci->lock, flags); msleep(10); spin_lock_irqsave(&xhci->lock, flags); @@ -1308,16 +1301,16 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, * a port unless the port reports that it is in the * enabled (PED = ‘1’,PLS < ‘3’) state. */ - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) || (temp & PORT_PLS_MASK) >= XDEV_U3) { xhci_warn(xhci, "USB core suspending port %d-%d not in U0/U1/U2\n", - hcd->self.busnum, portnum1); + hcd->self.busnum, wIndex + 1); goto error; } slot_id = xhci_find_slot_id_by_port(hcd, xhci, - portnum1); + wIndex + 1); if (!slot_id) { xhci_warn(xhci, "slot_id is zero\n"); goto error; @@ -1327,21 +1320,21 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_stop_device(xhci, slot_id, 1); spin_lock_irqsave(&xhci->lock, flags); - xhci_set_link_state(xhci, port, XDEV_U3); + xhci_set_link_state(xhci, ports[wIndex], XDEV_U3); spin_unlock_irqrestore(&xhci->lock, flags); msleep(10); /* wait device to enter */ spin_lock_irqsave(&xhci->lock, flags); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); bus_state->suspended_ports |= 1 << wIndex; break; case USB_PORT_FEAT_LINK_STATE: - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); /* Disable port */ if (link_state == USB_SS_PORT_LS_SS_DISABLED) { xhci_dbg(xhci, "Disable port %d-%d\n", - hcd->self.busnum, portnum1); + hcd->self.busnum, wIndex + 1); temp = xhci_port_state_to_neutral(temp); /* * Clear all change bits, so that we get a new @@ -1350,17 +1343,18 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp |= PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | PORT_RC | PORT_PLC | PORT_CEC; - writel(temp | PORT_PE, port->addr); - temp = readl(port->addr); + writel(temp | PORT_PE, ports[wIndex]->addr); + temp = readl(ports[wIndex]->addr); break; } /* Put link in RxDetect (enable port) */ if (link_state == USB_SS_PORT_LS_RX_DETECT) { xhci_dbg(xhci, "Enable port %d-%d\n", - hcd->self.busnum, portnum1); - xhci_set_link_state(xhci, port, link_state); - temp = readl(port->addr); + hcd->self.busnum, wIndex + 1); + xhci_set_link_state(xhci, ports[wIndex], + link_state); + temp = readl(ports[wIndex]->addr); break; } @@ -1390,10 +1384,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, } xhci_dbg(xhci, "Enable compliance mode transition for port %d-%d\n", - hcd->self.busnum, portnum1); - xhci_set_link_state(xhci, port, link_state); + hcd->self.busnum, wIndex + 1); + xhci_set_link_state(xhci, ports[wIndex], + link_state); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); break; } /* Port must be enabled */ @@ -1404,7 +1399,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* Can't set port link state above '3' (U3) */ if (link_state > USB_SS_PORT_LS_U3) { xhci_warn(xhci, "Cannot set port %d-%d link state %d\n", - hcd->self.busnum, portnum1, link_state); + hcd->self.busnum, wIndex + 1, + link_state); goto error; } @@ -1429,7 +1425,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, reinit_completion(&bus_state->u3exit_done[wIndex]); } if (pls <= XDEV_U3) /* U1, U2, U3 */ - xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U0); + xhci_set_link_state(xhci, ports[wIndex], + USB_SS_PORT_LS_U0); if (!wait_u0) { if (pls > XDEV_U3) goto error; @@ -1439,16 +1436,16 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if (!wait_for_completion_timeout(&bus_state->u3exit_done[wIndex], msecs_to_jiffies(500))) xhci_dbg(xhci, "missing U0 port change event for port %d-%d\n", - hcd->self.busnum, portnum1); + hcd->self.busnum, wIndex + 1); spin_lock_irqsave(&xhci->lock, flags); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); break; } if (link_state == USB_SS_PORT_LS_U3) { int retries = 16; slot_id = xhci_find_slot_id_by_port(hcd, xhci, - portnum1); + wIndex + 1); if (slot_id) { /* unlock to execute stop endpoint * commands */ @@ -1457,16 +1454,16 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_stop_device(xhci, slot_id, 1); spin_lock_irqsave(&xhci->lock, flags); } - xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U3); + xhci_set_link_state(xhci, ports[wIndex], USB_SS_PORT_LS_U3); spin_unlock_irqrestore(&xhci->lock, flags); while (retries--) { usleep_range(4000, 8000); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if ((temp & PORT_PLS_MASK) == XDEV_U3) break; } spin_lock_irqsave(&xhci->lock, flags); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); bus_state->suspended_ports |= 1 << wIndex; } break; @@ -1481,38 +1478,39 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case USB_PORT_FEAT_RESET: temp = (temp | PORT_RESET); - writel(temp, port->addr); + writel(temp, ports[wIndex]->addr); - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); xhci_dbg(xhci, "set port reset, actual port %d-%d status = 0x%x\n", - hcd->self.busnum, portnum1, temp); + hcd->self.busnum, wIndex + 1, temp); break; case USB_PORT_FEAT_REMOTE_WAKE_MASK: - xhci_set_remote_wake_mask(xhci, port, wake_mask); - temp = readl(port->addr); + xhci_set_remote_wake_mask(xhci, ports[wIndex], + wake_mask); + temp = readl(ports[wIndex]->addr); xhci_dbg(xhci, "set port remote wake mask, actual port %d-%d status = 0x%x\n", - hcd->self.busnum, portnum1, temp); + hcd->self.busnum, wIndex + 1, temp); break; case USB_PORT_FEAT_BH_PORT_RESET: temp |= PORT_WR; - writel(temp, port->addr); - temp = readl(port->addr); + writel(temp, ports[wIndex]->addr); + temp = readl(ports[wIndex]->addr); break; case USB_PORT_FEAT_U1_TIMEOUT: if (hcd->speed < HCD_USB3) goto error; - temp = readl(port->addr + PORTPMSC); + temp = readl(ports[wIndex]->addr + PORTPMSC); temp &= ~PORT_U1_TIMEOUT_MASK; temp |= PORT_U1_TIMEOUT(timeout); - writel(temp, port->addr + PORTPMSC); + writel(temp, ports[wIndex]->addr + PORTPMSC); break; case USB_PORT_FEAT_U2_TIMEOUT: if (hcd->speed < HCD_USB3) goto error; - temp = readl(port->addr + PORTPMSC); + temp = readl(ports[wIndex]->addr + PORTPMSC); temp &= ~PORT_U2_TIMEOUT_MASK; temp |= PORT_U2_TIMEOUT(timeout); - writel(temp, port->addr + PORTPMSC); + writel(temp, ports[wIndex]->addr + PORTPMSC); break; case USB_PORT_FEAT_TEST: /* 4.19.6 Port Test Modes (USB2 Test Mode) */ @@ -1528,16 +1526,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; } /* unblock any posted writes */ - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); break; case ClearPortFeature: - if (!portnum1 || portnum1 > max_ports) + if (!wIndex || wIndex > max_ports) goto error; - - port = ports[portnum1 - 1]; - wIndex--; - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); if (temp == ~(u32)0) { xhci_hc_died(xhci); retval = -ENODEV; @@ -1547,7 +1542,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_port_state_to_neutral(temp); switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = readl(port->addr); + temp = readl(ports[wIndex]->addr); xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); xhci_dbg(xhci, "PORTSC %04x\n", temp); if (temp & PORT_RESET) @@ -1558,18 +1553,20 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, set_bit(wIndex, &bus_state->resuming_ports); usb_hcd_start_port_resume(&hcd->self, wIndex); - xhci_set_link_state(xhci, port, XDEV_RESUME); + xhci_set_link_state(xhci, ports[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, XDEV_U0); + xhci_set_link_state(xhci, ports[wIndex], + XDEV_U0); clear_bit(wIndex, &bus_state->resuming_ports); usb_hcd_end_port_resume(&hcd->self, wIndex); } bus_state->port_c_suspend |= 1 << wIndex; slot_id = xhci_find_slot_id_by_port(hcd, xhci, - portnum1); + wIndex + 1); if (!slot_id) { xhci_dbg(xhci, "slot_id is zero\n"); goto error; @@ -1587,11 +1584,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, 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->addr, temp); + ports[wIndex]->addr, temp); break; case USB_PORT_FEAT_ENABLE: xhci_disable_port(hcd, xhci, wIndex, - port->addr, temp); + ports[wIndex]->addr, temp); break; case USB_PORT_FEAT_POWER: xhci_set_port_power(xhci, hcd, wIndex, false, &flags);