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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.c126
1 files changed, 79 insertions, 47 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 847b071b6fc9..89ff025b41be 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 14:10:42 +0000