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xhci: define the new default speed ID for SuperSpeedPlus used by xhci hw

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USB 3.1 capable xhci controllers use a new default speed ID "5" in the
PORTSC register to represent a 10Gbps connection speed of a SuperSpeedPlus
device

Make sure the xhci driver can handle the returned SuperSpeedPlus speed ID
properly

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2015-10-01 18:40:36 +03:00 committed by Greg Kroah-Hartman
parent 5693e0b77f
commit 2338b9e47f
3 changed files with 10 additions and 6 deletions
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6
drivers/usb/host/xhci-hub.c
View File

@ -713,7 +713,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
status |= USB_PORT_STAT_SUSPEND;
}
if ((raw_port_status & PORT_PLS_MASK) == XDEV_RESUME &&
!DEV_SUPERSPEED(raw_port_status)) {
!DEV_SUPERSPEED_ANY(raw_port_status)) {
if ((raw_port_status & PORT_RESET) ||
!(raw_port_status & PORT_PE))
return 0xffffffff;
@ -1311,14 +1311,14 @@ int xhci_bus_resume(struct usb_hcd *hcd)
u32 temp;
temp = readl(port_array[port_index]);
if (DEV_SUPERSPEED(temp))
if (DEV_SUPERSPEED_ANY(temp))
temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS);
else
temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS);
if (test_bit(port_index, &bus_state->bus_suspended) &&
(temp & PORT_PLS_MASK)) {
set_bit(port_index, &port_was_suspended);
if (!DEV_SUPERSPEED(temp)) {
if (!DEV_SUPERSPEED_ANY(temp)) {
xhci_set_link_state(xhci, port_array,
port_index, XDEV_RESUME);
need_usb2_u3_exit = true;

6
drivers/usb/host/xhci-ring.c
View File

@ -1567,7 +1567,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
goto cleanup;
}
if (DEV_SUPERSPEED(temp)) {
if (DEV_SUPERSPEED_ANY(temp)) {
xhci_dbg(xhci, "remote wake SS port %d\n", port_id);
/* Set a flag to say the port signaled remote wakeup,
* so we can tell the difference between the end of
@ -1595,7 +1595,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
}
if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 &&
DEV_SUPERSPEED(temp)) {
DEV_SUPERSPEED_ANY(temp)) {
xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
/* We've just brought the device into U0 through either the
* Resume state after a device remote wakeup, or through the
@ -1625,7 +1625,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
* RExit to a disconnect state). If so, let the the driver know it's
* out of the RExit state.
*/
if (!DEV_SUPERSPEED(temp) &&
if (!DEV_SUPERSPEED_ANY(temp) &&
test_and_clear_bit(faked_port_index,
&bus_state->rexit_ports)) {
complete(&bus_state->rexit_done[faked_port_index]);

4
drivers/usb/host/xhci.h
View File

@ -327,11 +327,15 @@ struct xhci_op_regs {
#define XDEV_LS (0x2 << 10)
#define XDEV_HS (0x3 << 10)
#define XDEV_SS (0x4 << 10)
#define XDEV_SSP (0x5 << 10)
#define DEV_UNDEFSPEED(p) (((p) & DEV_SPEED_MASK) == (0x0<<10))
#define DEV_FULLSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_FS)
#define DEV_LOWSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_LS)
#define DEV_HIGHSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_HS)
#define DEV_SUPERSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_SS)
#define DEV_SUPERSPEEDPLUS(p) (((p) & DEV_SPEED_MASK) == XDEV_SSP)
#define DEV_SUPERSPEED_ANY(p) (((p) & DEV_SPEED_MASK) >= XDEV_SS)
/* Bits 20:23 in the Slot Context are the speed for the device */
#define SLOT_SPEED_FS (XDEV_FS << 10)
#define SLOT_SPEED_LS (XDEV_LS << 10)