linux-toradex.git/drivers/usb/gadget/printer.c, branch v3.11

new helper: file_inode(file)

2013-02-23T04:31:31+00:00

Signed-off-by: Al Viro

usb: gadget: always update HS/SS descriptors and create a copy of them

2012-10-31T13:09:44+00:00

HS and SS descriptors are staticaly created. They are updated during the
bind process with the endpoint address, string id or interface numbers.

After that, the descriptor chain is linked to struct usb_function which
is used by composite in order to serve the GET_DESCRIPTOR requests,
number of available configs and so on.

There is no need to assign the HS descriptor only if the UDC supports
HS speed because composite won't report those to the host if HS support
has not been reached. The same reasoning is valid for SS.

This patch makes sure each function updates HS/SS descriptors
unconditionally and uses the newly introduced helper function to create a
copy the descriptors for the speed which is supported by the UDC.

While at that, also rename f->descriptors to f->fs_descriptors in order
to make it more explicit what that means.

Cc: Laurent Pinchart 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: remove usb_gadget_controller_number()

2012-09-10T13:43:24+00:00

The bcdDevice field is defined as
|Device release number in binary-coded decimal
in the USB 2.0 specification. We use this field to distinguish the UDCs
from each other. In theory this could be used on the host side to apply
certain quirks if the "special" UDC in combination with this gadget is
used. This hasn't been done as far as I am aware. In practice it would
be better to fix the UDC driver before shipping since a later release
might not need this quirk anymore.

There are some driver in tree (on the host side) which use the bcdDevice
field to figure out special workarounds for a given firmware revision.
This seems to make sense. Therefore this patch converts all gadgets
(except a few) to use the kernel version instead a random 2 or 3 plus
the UDC number. The few that don't report kernel's version are:
- webcam
  This one reports always a version 0x10 so allow it to do so in future.
- nokia
  This one reports always 0x211. The comment says that this gadget works
  only if the UDC supports altsettings so I added a check for this.
- serial
  This one reports 0x2400 + UDC number. Since the gadget version is 2.4
  this could make sense. Therefore bcdDevice is 0x2400 here.

I also remove various gadget_is_ macros which are unused. The
remaining few macros should be moved to feature / bug bitfield.

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: libcomposite: move composite.c into libcomposite

2012-09-10T13:13:03+00:00

This moves composite.c into libcomposite and updates all gadgets.
Finally!

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: Provide a default implementation of default manufacturer string

2012-09-10T13:13:02+00:00

Some gadgets provide custom entry here. Some may override it with an
etntry that is also created by composite if there was no value sumbitted
at all.
This patch removes all "custom manufacturer" strings which are the same
as these which are created by composite. Then it moves the creation of
the default manufacturer string to usb_composite_overwrite_options() in
case no command line argument has been used and the entry is still an
empty string.
By doing this we get rid of the global variable "composite_manufacturer"
in composite.

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: push iSerialNumber into gadgets

2012-09-10T13:13:00+00:00

This patch pushes the iSerialNumber module argument from composite into
each gadget. Once the user uses the module paramter, the string is
overwritten with the final value.

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: make sure each gadget is using same index for Product, Serial,…

2012-09-10T13:13:00+00:00

The index in usb_string array is defined by the gadget. The gadget can
choose which index entry it assigns for the serial number and which the
product name. The gadget has just to ensure that the descriptor contains
the proper string id which is assigned by composite.
If the composite layer knows the index of the "default" information
which will be overwritten by module parameters, it can be used later to
overwrite it.

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: push VID/PID/USB BCD module option into gadgets

2012-09-10T13:12:59+00:00

This patch moves the module options idVendor, idProduct and bcdDevice
from composite.c into each gadgets. This ensures compatibility with
current gadgets and removes the global variable which brings me step
closer towards composite.c in libcomposite

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: make g_printer enumerate again

2012-09-10T13:11:31+00:00

This was broken in 2e87edf49 ("usb: gadget: make g_printer use
composite").
The USB-strings were not setup properly and were not used. No function
was added which results in an empty USB config.
While fixing this, the interface number is now auto generated and not
hard coded to 0.

Cc: stable@vger.kernel.org # v3.5
Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi

usb: gadget: libcomposite: add epautoconf.c to libcomposite

2012-09-10T12:37:51+00:00

This patch adds epautoconf.c into libcomposite and updates all gadgets.

Acked-by: Michal Nazarewicz 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Felipe Balbi