linux-stable.git/drivers/usb/core/hcd.c, branch v4.6

usb: core: Allow compilation on platforms where NO_DMA=y

2016-02-21T04:22:55+00:00

Some platforms don't have DMA, but we should still be able to build USB
drivers for these platforms. They could still be used through vhci_hcd,
usbip_host, or maybe something like USB passthrough in UML from a
capable host.

If NO_DMA=y:

    ERROR: "dma_pool_destroy" [drivers/usb/core/usbcore.ko] undefined!
    ERROR: "bad_dma_ops" [drivers/usb/core/usbcore.ko] undefined!
    ERROR: "dma_pool_free" [drivers/usb/core/usbcore.ko] undefined!
    ERROR: "dma_pool_alloc" [drivers/usb/core/usbcore.ko] undefined!
    ERROR: "dma_pool_create" [drivers/usb/core/usbcore.ko] undefined!

Add a few checks for CONFIG_HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Vegard Nossum 
Signed-off-by: Greg Kroah-Hartman

usb: core: rename mutex usb_bus_list_lock to usb_bus_idr_lock

2016-02-07T05:55:57+00:00

Now that usb_bus_list has been removed and switched to idr
rename the related mutex accordingly.

Signed-off-by: Heiner Kallweit 
Signed-off-by: Greg Kroah-Hartman

usb: core: switch bus numbering to using idr

2016-02-03T21:26:30+00:00

USB bus numbering is based on directly dealing with bitmaps and
defines a separate list of busses.
This can be simplified and unified by using existing idr functionality.

Signed-off-by: Heiner Kallweit 
Signed-off-by: Greg Kroah-Hartman

USB: core, wusbcore: use bus_to_hcd

2016-01-25T05:00:33+00:00

Use bus_to_hcd() instead of open-coding it.

Signed-off-by: Geliang Tang 
Signed-off-by: Greg Kroah-Hartman

usb: Support USB 3.1 extended port status request

2016-01-25T04:16:52+00:00

usb 3.1 extend the hub get-port-status request by adding different
request types. the new request types return 4 additional bytes called
extended port status, these bytes are returned after the regular
portstatus and portchange values.

The extended port status contains a speed ID for the currently used
sublink speed. A table of supported Speed IDs with details about the link
is provided by the hub in the device descriptor BOS SuperSpeedPlus
device capability Sublink Speed Attributes.

Support this new request. Ask for the extended port status after port
reset if hub supports USB 3.1. If link is running at SuperSpeedPlus
set the device speed to USB_SPEED_SUPER_PLUS

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: add device descriptor for usb 3.1 root hub

2016-01-25T04:16:52+00:00

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: set USB 3.1 roothub device speed to USB_SPEED_SUPER_PLUS

2016-01-25T04:16:52+00:00

A hcd roothub that supports HCD_USB31 is running at SuperSpeedPlus speed

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices

2016-01-25T04:16:52+00:00

Add a new USB_SPEED_SUPER_PLUS device speed, and make sure usb core can
handle the new speed.
In most cases the behaviour is the same as with USB_SPEED_SUPER SuperSpeed
devices. In a few places we add a "Plus" string to inform the user of the
new speed.

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

USB: constify usb_mon_operations structure

2015-12-01T22:36:29+00:00

The usb_mon_operations structure is never modified, so declare it as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall 
Signed-off-by: Greg Kroah-Hartman

usb: hcd: use USB_DT_*

2015-10-17T06:40:06+00:00

Fix using the bare numbers to set the 'bDescriptorType' descriptor fields
while the values are #define'd in .

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Greg Kroah-Hartman