diff options
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
-rw-r--r-- | drivers/usb/host/xhci-hub.c | 126 |
1 files changed, 79 insertions, 47 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 847b071..89ff025 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -288,10 +288,18 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, unsigned long flags; u32 temp, temp1, status; int retval = 0; - u32 __iomem *addr; + u32 __iomem *port_array[15 + USB_MAXCHILDREN]; + int i; int slot_id; 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]; + } spin_lock_irqsave(&xhci->lock, flags); switch (typeReq) { @@ -307,8 +315,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; wIndex--; status = 0; - addr = &xhci->op_regs->port_status_base + NUM_PORT_REGS*(wIndex & 0xff); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); xhci_dbg(xhci, "get port status, actual port %d status = 0x%x\n", wIndex, temp); /* wPortChange bits */ @@ -336,7 +343,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp1 = xhci_port_state_to_neutral(temp); temp1 &= ~PORT_PLS_MASK; temp1 |= PORT_LINK_STROBE | XDEV_U0; - xhci_writel(xhci, temp1, addr); + xhci_writel(xhci, temp1, port_array[wIndex]); xhci_dbg(xhci, "set port %d resume\n", wIndex + 1); @@ -379,12 +386,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if (!wIndex || wIndex > ports) goto error; wIndex--; - addr = &xhci->op_regs->port_status_base + NUM_PORT_REGS*(wIndex & 0xff); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); temp = xhci_port_state_to_neutral(temp); switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); /* 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. @@ -409,13 +415,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_U3; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[wIndex]); spin_unlock_irqrestore(&xhci->lock, flags); msleep(10); /* wait device to enter */ spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); xhci->suspended_ports |= 1 << wIndex; break; case USB_PORT_FEAT_POWER: @@ -425,34 +431,34 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, * However, khubd will ignore the roothub events until * the roothub is registered. */ - xhci_writel(xhci, temp | PORT_POWER, addr); + xhci_writel(xhci, temp | PORT_POWER, + port_array[wIndex]); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp); break; case USB_PORT_FEAT_RESET: temp = (temp | PORT_RESET); - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[wIndex]); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); xhci_dbg(xhci, "set port reset, actual port %d status = 0x%x\n", wIndex, temp); break; default: goto error; } - temp = xhci_readl(xhci, addr); /* unblock any posted writes */ + /* unblock any posted writes */ + temp = xhci_readl(xhci, port_array[wIndex]); break; case ClearPortFeature: if (!wIndex || wIndex > ports) goto error; wIndex--; - addr = &xhci->op_regs->port_status_base + - NUM_PORT_REGS*(wIndex & 0xff); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); temp = xhci_port_state_to_neutral(temp); switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[wIndex]); xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); xhci_dbg(xhci, "PORTSC %04x\n", temp); if (temp & PORT_RESET) @@ -464,24 +470,28 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_U0; - xhci_writel(xhci, temp, addr); - xhci_readl(xhci, addr); + xhci_writel(xhci, temp, + port_array[wIndex]); + xhci_readl(xhci, port_array[wIndex]); } else { temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_RESUME; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, + port_array[wIndex]); spin_unlock_irqrestore(&xhci->lock, flags); msleep(20); spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, + port_array[wIndex]); temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_U0; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, + port_array[wIndex]); } xhci->port_c_suspend |= 1 << wIndex; } @@ -500,10 +510,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_C_OVER_CURRENT: case USB_PORT_FEAT_C_ENABLE: xhci_clear_port_change_bit(xhci, wValue, wIndex, - addr, temp); + port_array[wIndex], temp); break; case USB_PORT_FEAT_ENABLE: - xhci_disable_port(xhci, wIndex, addr, temp); + xhci_disable_port(xhci, wIndex, + port_array[wIndex], temp); break; default: goto error; @@ -534,9 +545,16 @@ 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 *addr; + u32 __iomem *port_array[15 + USB_MAXCHILDREN]; 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]; + } /* Initial status is no changes */ retval = (ports + 8) / 8; @@ -548,9 +566,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) spin_lock_irqsave(&xhci->lock, flags); /* For each port, did anything change? If so, set that bit in buf. */ for (i = 0; i < ports; i++) { - addr = &xhci->op_regs->port_status_base + - NUM_PORT_REGS*i; - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[i]); if ((temp & mask) != 0 || (xhci->port_c_suspend & 1 << i) || (xhci->resume_done[i] && time_after_eq( @@ -569,10 +585,19 @@ 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; 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]; + } spin_lock_irqsave(&xhci->lock, flags); @@ -593,13 +618,10 @@ int xhci_bus_suspend(struct usb_hcd *hcd) xhci->bus_suspended = 0; while (port_index--) { /* suspend the port if the port is not suspended */ - u32 __iomem *addr; u32 t1, t2; int slot_id; - addr = &xhci->op_regs->port_status_base + - NUM_PORT_REGS * (port_index & 0xff); - t1 = xhci_readl(xhci, addr); + t1 = xhci_readl(xhci, port_array[port_index]); t2 = xhci_port_state_to_neutral(t1); if ((t1 & PORT_PE) && !(t1 & PORT_PLS_MASK)) { @@ -628,15 +650,17 @@ int xhci_bus_suspend(struct usb_hcd *hcd) t1 = xhci_port_state_to_neutral(t1); if (t1 != t2) - xhci_writel(xhci, t2, addr); + xhci_writel(xhci, t2, port_array[port_index]); if (DEV_HIGHSPEED(t1)) { /* enable remote wake up for USB 2.0 */ u32 __iomem *addr; u32 tmp; - addr = &xhci->op_regs->port_power_base + - NUM_PORT_REGS * (port_index & 0xff); + /* Add one to the port status register address to get + * the port power control register address. + */ + addr = port_array[port_index] + 1; tmp = xhci_readl(xhci, addr); tmp |= PORT_RWE; xhci_writel(xhci, tmp, addr); @@ -652,11 +676,20 @@ 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 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 (time_before(jiffies, xhci->next_statechange)) msleep(5); @@ -676,13 +709,10 @@ int xhci_bus_resume(struct usb_hcd *hcd) while (port_index--) { /* Check whether need resume ports. If needed resume port and disable remote wakeup */ - u32 __iomem *addr; u32 temp; int slot_id; - addr = &xhci->op_regs->port_status_base + - NUM_PORT_REGS * (port_index & 0xff); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[port_index]); if (DEV_SUPERSPEED(temp)) temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); else @@ -693,36 +723,38 @@ int xhci_bus_resume(struct usb_hcd *hcd) temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_U0; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[port_index]); } else { temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_RESUME; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[port_index]); spin_unlock_irqrestore(&xhci->lock, flags); msleep(20); spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, addr); + temp = xhci_readl(xhci, port_array[port_index]); temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | XDEV_U0; - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[port_index]); } slot_id = xhci_find_slot_id_by_port(xhci, port_index + 1); if (slot_id) xhci_ring_device(xhci, slot_id); } else - xhci_writel(xhci, temp, addr); + xhci_writel(xhci, temp, port_array[port_index]); if (DEV_HIGHSPEED(temp)) { /* disable remote wake up for USB 2.0 */ u32 __iomem *addr; u32 tmp; - addr = &xhci->op_regs->port_power_base + - NUM_PORT_REGS * (port_index & 0xff); + /* Add one to the port status register address to get + * the port power control register address. + */ + addr = port_array[port_index] + 1; tmp = xhci_readl(xhci, addr); tmp &= ~PORT_RWE; xhci_writel(xhci, tmp, addr); |