linux.git/drivers/usb/gadget/f_loopback.c, branch v3.11 Linux kernel source tree usb: gadget: convert source sink and loopback to new function interface 2013-01-21T18:52:40+00:00 Sebastian Andrzej Siewior bigeasy@linutronix.de 2012-12-23T20:10:01+00:00 cf9a08ae5aece88987bbeee8eb0dd0ebb5015815 This patch converts the f_sourcesink and f_loopback file to the USB-function module. Both functions shares a few common utility functions which are currently implemented in g_zero.c itself. This patch moves the common code into the sourcesink file and creates one module out of the the two functions (source sink and loop back). The g_zero gadget is function specific to source sink and loop back to set a few options. This Symbol dependency enforces a modul load right now. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com> 
This patch converts the f_sourcesink and f_loopback file to the USB-function
module. Both functions shares a few common utility functions which are
currently implemented in g_zero.c itself. This patch moves the common
code into the sourcesink file and creates one module out of the the two
functions (source sink and loop back).
The g_zero gadget is function specific to source sink and loop back to
set a few options. This Symbol dependency enforces a modul load right
now.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: move loopback's config descriptor out of f_loopback 2013-01-21T18:52:39+00:00 Sebastian Andrzej Siewior bigeasy@linutronix.de 2012-12-23T20:09:59+00:00 78f46f09a80a39fe646fe415a21435f2a05df6c2 f_loopback should only include the bare function but it also includes the config descriptor. This patch moves the config descriptor into zero.c, the only user of this function. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com> 
f_loopback should only include the bare function but it also includes
the config descriptor. This patch moves the config descriptor into
zero.c, the only user of this function.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: always update HS/SS descriptors and create a copy of them 2012-10-31T13:09:44+00:00 Sebastian Andrzej Siewior bigeasy@linutronix.de 2012-10-22T20:15:06+00:00 10287baec761d33f0a82d84b46e37a44030350d8 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 <laurent.pinchart@ideasonboard.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com> 
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 <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: add isochronous support to gadget zero 2012-05-04T12:53:08+00:00 Paul Zimmerman Paul.Zimmerman@synopsys.com 2012-04-16T21:19:06+00:00 b4036ccdd2ce5ec0c4f29b91312dd3cf19fc9152 Add two isochronous endpoints to the gadget zero source/sink function. They are enabled by selecting alternate interface 1, so by default they are not enabled. Module parameters for setting all the isoc endpoint characteristics are also provided. Signed-off-by: Pratyush Anand <pratyush.anand@st.com> Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Add two isochronous endpoints to the gadget zero source/sink
function. They are enabled by selecting alternate interface 1, so
by default they are not enabled. Module parameters for setting all
the isoc endpoint characteristics are also provided.

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: zero: fix bug in loopback autoresume handling 2012-01-30T09:10:20+00:00 Timo Juhani Lindfors timo.lindfors@iki.fi 2012-01-29T14:12:13+00:00 683da59d7b8ae04891636d4b59893cd4e9b0b7e5 ab943a2e125b (USB: gadget: gadget zero uses new suspend/resume hooks) introduced a copy-paste error where f_loopback.c writes to a variable declared in f_sourcesink.c. This prevents one from creating gadgets that only have a loopback function. Cc: stable <stable@vger.kernel.org> Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi> Signed-off-by: Felipe Balbi <balbi@ti.com> 
ab943a2e125b (USB: gadget: gadget zero uses new suspend/resume hooks)
introduced a copy-paste error where f_loopback.c writes to a variable
declared in f_sourcesink.c. This prevents one from creating gadgets
that only have a loopback function.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb gadget: clean up FSF boilerplate text 2011-09-09T23:00:09+00:00 Klaus Schwarzkopf schwarzkopf@sensortherm.de 2011-09-09T14:10:44+00:00 28c9fc68ebd32d473a8787d05c74e3f39c6c866b 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 <schwarzkopf@sensortherm.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
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 <schwarzkopf@sensortherm.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb: gadget: zero: add superspeed support 2011-07-08T10:57:54+00:00 Amit Blay ablay@codeaurora.org 2011-07-03T14:29:31+00:00 57c97c02de0e7a59cb48d3d7666f4afaf9968e84 This patch adds SuperSpeed descriptors to the g_zero gadget. The SuperSpeed descriptors were added both for f_soursesink and f_loopback function drivers. Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Amit Blay <ablay@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> 
This patch adds SuperSpeed descriptors to the
g_zero gadget.

The SuperSpeed descriptors were added both for
f_soursesink and f_loopback function drivers.

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Amit Blay <ablay@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: use config_ep_by_speed() instead of ep_choose() 2011-06-28T18:14:37+00:00 Tatyana Brokhman tlinder@codeaurora.org 2011-06-28T13:33:50+00:00 ea2a1df7b2b1de839a72217d85bfb4b7b049010c Remove obsolete functions: 1. ep_choose() 2. usb_find_endpoint() Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Remove obsolete functions:
1. ep_choose()
2. usb_find_endpoint()

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb: gadget: add usb_endpoint_descriptor to struct usb_ep 2011-06-28T18:14:36+00:00 Tatyana Brokhman tlinder@codeaurora.org 2011-06-28T13:33:48+00:00 72c973dd2b01b212a159faa330a2bc641a3ed809 Change usb_ep_enable() prototype to use endpoint descriptor from usb_ep. This optimization spares the FDs from saving the endpoint chosen descriptor. This optimization is not full though. To fully exploit this change, one needs to update all the UDCs as well since in the current implementation each of them saves the endpoint descriptor in it's internal (and extended) endpoint structure. Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
Change usb_ep_enable() prototype to use endpoint
descriptor from usb_ep.

This optimization spares the FDs from saving the
endpoint chosen descriptor. This optimization is
not full though. To fully exploit this change, one
needs to update all the UDCs as well since in the
current implementation each of them saves the
endpoint descriptor in it's internal (and extended)
endpoint structure.

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb gadget: don't save bind callback in struct usb_configuration 2010-10-22T17:21:26+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2010-08-12T15:43:55+00:00 c9bfff9c98671ad50e4abbfe1ab606a9957f7539 The bind function is most of the time only called at init time so there is no need to save a pointer to it in the configuration structure. This fixes many section mismatches reported by modpost. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [m.nazarewicz@samsung.com: updated for -next] Signed-off-by: Michał Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the configuration structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[m.nazarewicz@samsung.com: updated for -next]
Signed-off-by: Michał Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>