linux-toradex.git/include/uapi/linux/usb, branch v4.3-rc6

usb: add USB_OTG_ADP definition

2015-07-29T14:59:20+00:00

Add USB_OTG_ADP definition for usb_otg_descriptor.bmAttributes.

Signed-off-by: Macpaul Lin 
Signed-off-by: Li Jun 
Acked-by: Peter Chen 
Signed-off-by: Felipe Balbi

usb: add usb_otg20_descriptor for OTG 2.0 and above

2015-07-29T14:59:20+00:00

OTG 2.0 introduces bcdOTG in otg descriptor to identify the OTG and EH
supplement release number with which the OTG device is compliant, this
patch adds structure usb_otg20_descriptor for OTG 2.0 and above.

Signed-off-by: Macpaul Lin 
Signed-off-by: Li Jun 
Reviewed-by: Roger Quadros 
Signed-off-by: Felipe Balbi

usb: gadget: ffs: add eventfd notification about ffs events

2015-01-27T15:34:59+00:00

Add eventfd which notifies userspace about ep0 events and AIO completion
events. It simplifies using of FunctionFS with event loop, because now
we need to poll on single file (instead of polling on ep0 and eventfd's
supplied to AIO layer).

FunctionFS eventfd is not triggered if another eventfd is supplied to
AIO layer (in AIO request). It can be useful, for example, when we want
to handle AIO transations for chosen endpoint in separate thread.

Signed-off-by: Robert Baldyga 
Acked-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

usb: gadget: f_fs: virtual endpoint address mapping

2014-09-16T14:58:21+00:00

This patch introduces virtual endpoint address mapping. It separates
function logic form physical endpoint addresses making it more hardware
independent.

Following modifications changes user space API, so to enable them user
have to switch on the FUNCTIONFS_VIRTUAL_ADDR flag in descriptors.

Endpoints are now refered using virtual endpoint addresses chosen by
user in endpoint descpriptors. This applies to each context when endpoint
address can be used:
- when accessing endpoint files in FunctionFS filesystemi (in file name),
- in setup requests directed to specific endpoint (in wIndex field),
- in descriptors returned by FUNCTIONFS_ENDPOINT_DESC ioctl.

In endpoint file names the endpoint address number is formatted as
double-digit hexadecimal value ("ep%02x") which has few advantages -
it is easy to parse, allows to easly recognize endpoint direction basing
on its name (IN endpoint number starts with digit 8, and OUT with 0)
which can be useful for debugging purpose, and it makes easier to introduce
further features allowing to use each endpoint number in both directions
to have more endpoints available for function if hardware supports this
(for example we could have ep01 which is endpoint 1 with OUT direction,
and ep81 which is endpoint 1 with IN direction).

Physical endpoint address can be still obtained using ioctl named
FUNCTIONFS_ENDPOINT_REVMAP, but now it's not neccesary to handle
USB transactions properly.

Signed-off-by: Robert Baldyga 
Acked-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

usb: gadget: f_fs: add ioctl returning ep descriptor

2014-09-09T15:04:45+00:00

This patch introduces ioctl named FUNCTIONFS_ENDPOINT_DESC, which
returns endpoint descriptor to userspace. It works only if function
is active.

Signed-off-by: Robert Baldyga 
Acked-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

tools: ffs-test: convert to new descriptor format

2014-09-02T14:16:46+00:00

Since commit [ac8dde11: “Add flags to descriptors block”] functionfs
supports a new, more powerful and extensible, descriptor format.
Since ffs-test is probably the first thing users of the functionfs
interface see when they start writing functionfs user space daemons,
convert it to use the new format thus promoting it.

Signed-off-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

usb: gadget: f_fs: add usb_functionfs_descs_head_v2 structure

2014-09-02T14:16:46+00:00

The structure can be used with user space tools that use the new
functionfs description format, for example as follows:

static const struct {
	struct usb_functionfs_descs_head_v2 header;
	__le32 fs_count;
	__le32 hs_count;
	struct {
		…
	} fs_desc;
	struct {
		…
	} hs_desc;
} descriptors = {
	.header = {
		.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2),
		.length = cpu_to_le32(sizeof(descriptors)),
		.flags = cpu_to_le32(FUNCTIONFS_HAS_FS_DESC |
				     FUNCTIONFS_HAS_HS_DESC)
	},
	.fs_count = cpu_to_le32(X),
	.fs_desc = {
		…
	},
	.hs_count = cpu_to_le32(Y),
	.hs_desc = {
		…
	}
};

Signed-off-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

Merge tag 'usb-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

2014-07-21T18:33:41+00:00

Felipe writes:

usb: patches for v3.17 merge window

Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).

The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.

Signed-of-by: Felipe Balbi

usb: gadget: f_fs: OS descriptors support

2014-07-10T13:36:52+00:00

Add support for OS descriptors. The new format of descriptors is used,
because the "flags" field is required for extensions. os_count gives
the number of OSDesc[] elements.
The format of descriptors is given in include/uapi/linux/usb/functionfs.h.

For extended properties descriptor the usb_ext_prop_desc structure covers
only a part of a descriptor, because the wPropertyNameLength is unknown
up front.

Signed-off-by: Andrzej Pietrasiewicz 
Acked-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi

usb: gadget: f_fs: resurect usb_functionfs_descs_head structure

2014-06-27T15:41:29+00:00

Even though usb_functionfs_descs_head structure is now deprecated,
it has been used by some user space tools.  Its removel in commit
[ac8dde1: “Add flags to descriptors block”] was an oversight
leading to build breakage for such tools.

Bring it back so that old user space tools can still be build
without problems on newer kernel versions.

Cc:   # 3.14
Reported-by: Lad, Prabhakar 
Reported-by: Krzysztof Opasiak 
Signed-off-by: Michal Nazarewicz 
Signed-off-by: Felipe Balbi