Doug / smarc-fsl-linux-kernel

10 Jun, 2013

2 commits

23 Apr, 2013

1 commit

03 Apr, 2013

2 commits

22 Jan, 2013

1 commit

  • 19b10a882   usb: gadget: allocate & giveback serial ports instead hard code them ... Browse Code »

    This patch removes gserial_setup() and gserial_cleanup() and adds
    gserial_alloc_line() and gserial_free_line() to replace them.

    The initial setup of u_serial happens now on module load time. A
    maximum of four TTY ports can be requested which is the current limit.
    In theory we could extend this limit, the hard limit is the number of
    available endpoints.
    alloc_tty_driver() is now called at module init time with the max
    available ports. The per-line footprint here is on 32bit is 3 * size of
    pointer + 60 bytes (for cdevs).
    The remaining memory (struct gs_port) is allocated once a port is
    requested.

    With this change it is possible to load g_multi and g_serial at the same
    time. GS0 receives the module that is loaded first, GS1 is received by
    the next module and so on. With the configfs interface the port number
    can be exported and the device node is more predictable. Nothing changes
    for g_serial and friends as long as one module is used.

    Signed-off-by: Sebastian Andrzej Siewior
    Signed-off-by: Felipe Balbi

    Sebastian Andrzej Siewior
     

31 Oct, 2012

2 commits

  • 1616e99d4   usb: gadget: let f_* use usb_string_ids_tab() where it makes sense ... Browse Code »

    Instead of calling usb_string_id() multiple times I replace it with one
    usb_string_ids_tab(). The NULL pointer in struct usb_string with "" and
    are not overwritten in fail or unbind case.

    The conditional assignment remains because some gadgets recycle the string
    ID because the same descriptor (and string ID) is used if we have more
    than one config descriptor.

    Signed-off-by: Sebastian Andrzej Siewior
    Signed-off-by: Felipe Balbi

    Sebastian Andrzej Siewior
     
  • 10287baec   usb: gadget: always update HS/SS descriptors and create a copy of them ... Browse Code »

    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

    Sebastian Andrzej Siewior
     

01 Nov, 2011

1 commit

10 Sep, 2011

1 commit

  • 28c9fc68e   usb gadget: clean up FSF boilerplate text ... Browse Code »

    remove the following two paragraphs as they are not needed:

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
    License for more details.

    You should have received a copy of the GNU General Public License along with
    this program; if not, write to the Free Software Foundation, Inc.,59
    Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    Signed-off-by: Klaus Schwarzkopf
    Signed-off-by: Greg Kroah-Hartman

    Klaus Schwarzkopf
     

29 Jun, 2011

2 commits

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

24 Sep, 2009

1 commit

  • 2bcd57ab6   headers: utsname.h redux ... Browse Code »

    * remove asm/atomic.h inclusion from linux/utsname.h --
    not needed after kref conversion
    * remove linux/utsname.h inclusion from files which do not need it

    NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however
    due to some personality stuff it _is_ needed -- cowardly leave ELF-related
    headers and files alone.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

25 Mar, 2009

1 commit

28 Feb, 2009

1 commit

18 Oct, 2008

2 commits

  • 212142783   usb gadget: defer obex enumeration ... Browse Code »

    Some USB peripheral controller drivers support software control
    over the data pullup. Use those controls to prevent the OBEX
    function from enumerating until the userspace server has opened
    the /dev/ttyGS* node it will use to implement protocol chitchat
    with the USB host.

    Signed-off-by: David Brownell
    Signed-off-by: Greg Kroah-Hartman

    David Brownell
     
  • 3086775a4   usb gadget: cdc obex glue ... Browse Code »

    The following patch introduces a new f_obex.c function driver.
    It allows userspace obex servers to use usb as transport layer
    for their messages.

    [ dbrownell@users.sourceforge.net: various fixes and cleanups ]

    Signed-off-by: Felipe Balbi
    Signed-off-by: David Brownell
    Signed-off-by: Greg Kroah-Hartman

    Felipe Balbi