/*
* v4l2-fh.h
*
* V4L2 file handle. Store per file handle data for the V4L2
* framework. Using file handles is optional for the drivers.
*
* Copyright (C) 2009--2010 Nokia Corporation.
*
* Contact: Sakari Ailus <sakari.ailus@iki.fi>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef V4L2_FH_H
#define V4L2_FH_H
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/videodev2.h>
struct video_device;
struct v4l2_ctrl_handler;
/**
* struct v4l2_fh - Describes a V4L2 file handler
*
* @list: list of file handlers
* @vdev: pointer to &struct video_device
* @ctrl_handler: pointer to &struct v4l2_ctrl_handler
* @prio: priority of the file handler, as defined by &enum v4l2_priority
*
* @wait: event' s wait queue
* @subscribed: list of subscribed events
* @available: list of events waiting to be dequeued
* @navailable: number of available events at @available list
* @sequence: event sequence number
* @m2m_ctx: pointer to &struct v4l2_m2m_ctx
*/
struct v4l2_fh {
struct list_head list;
struct video_device *vdev;
struct v4l2_ctrl_handler *ctrl_handler;
enum v4l2_priority prio;
/* Events */
wait_queue_head_t wait;
struct list_head subscribed;
struct list_head available;
unsigned int navailable;
u32 sequence;
#if IS_ENABLED(CONFIG_V4L2_MEM2MEM_DEV)
struct v4l2_m2m_ctx *m2m_ctx;
#endif
};
/**
* v4l2_fh_init - Initialise the file handle.
*
* @fh: pointer to &struct v4l2_fh
* @vdev: pointer to &struct video_device
*
* Parts of the V4L2 framework using the
* file handles should be initialised in this function. Must be called
* from driver's v4l2_file_operations->open\(\) handler if the driver
* uses &struct v4l2_fh.
*/
void v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev);
/**
* v4l2_fh_add - Add the fh to the list of file handles on a video_device.
*
* @fh: pointer to &struct v4l2_fh
*
* .. note::
* The @fh file handle must be initialised first.
*/
void v4l2_fh_add(struct v4l2_fh *fh);
/**
* v4l2_fh_open - Ancillary routine that can be used as the open\(\) op
* of v4l2_file_operations.
*
* @filp: pointer to struct file
*
* It allocates a v4l2_fh and inits and adds it to the &struct video_device
* associated with the file pointer.
*/
int v4l2_fh_open(struct file *filp);
/**
* v4l2_fh_del - Remove file handle from the list of file handles.
*
* @fh: pointer to &struct v4l2_fh
*
* On error filp->private_data will be %NULL, otherwise it will point to
* the &struct v4l2_fh.
*
* .. note::
* Must be called in v4l2_file_operations->release\(\) handler if the driver
* uses &struct v4l2_fh.
*/
void v4l2_fh_del(struct v4l2_fh *fh);
/**
* v4l2_fh_exit - Release resources related to a file handle.
*
* @fh: pointer to &struct v4l2_fh
*
* Parts of the V4L2 framework using the v4l2_fh must release their
* resources here, too.
*
* .. note::
* Must be called in v4l2_file_operations->release\(\) handler if the
* driver uses &struct v4l2_fh.
*/
void v4l2_fh_exit(struct v4l2_fh *fh);
/**
* v4l2_fh_release - Ancillary routine that can be used as the release\(\) op
* of v4l2_file_operations.
*
* @filp: pointer to struct file
*
* It deletes and exits the v4l2_fh associated with the file pointer and
* frees it. It will do nothing if filp->private_data (the pointer to the
* v4l2_fh struct) is %NULL.
*
* This function always returns 0.
*/
int v4l2_fh_release(struct file *filp);
/**
* v4l2_fh_is_singular - Returns 1 if this filehandle is the only filehandle
* opened for the associated video_device.
*
* @fh: pointer to &struct v4l2_fh
*
* If @fh is NULL, then it returns 0.
*/
int v4l2_fh_is_singular(struct v4l2_fh *fh);
/**
* v4l2_fh_is_singular_file - Returns 1 if this filehandle is the only
* filehandle opened for the associated video_device.
*
* @filp: pointer to struct file
*
* This is a helper function variant of v4l2_fh_is_singular() with uses
* struct file as argument.
*
* If filp->private_data is %NULL, then it will return 0.
*/
static inline int v4l2_fh_is_singular_file(struct file *filp)
{
return v4l2_fh_is_singular(filp->private_data);
}
#endif /* V4L2_EVENT_H */
s='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2017-01-27 12:29:30 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2017-01-27 12:29:30 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>dd3b9f25c867cb2507a45e436d6ede8eb08e7b05</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/au88x0/au88x0.c?id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>1ec6c08cd75610083d117a2c8d5eb0829e65f33e</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>sound/pci/au88x0/au88x0.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=69978aa0f21f43529e11f924504dadb6ce2f229a'>69978aa0f21f43529e11f924504dadb6ce2f229a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05&id2=69978aa0f21f43529e11f924504dadb6ce2f229a'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>b4cfe3971f6eab542dd7ecc398bfa1aeec889934</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/au88x0/au88x0.c?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05&id2=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma</div><div class='commit-msg'>Pull rdma fixes from Doug Ledford:
"Second round of -rc fixes for 4.10.
This -rc cycle has been slow for the rdma subsystem. I had already
sent you the first batch before the Holiday break. After that, we kept
only getting a few here or there. Up until this week, when I got a
drop of 13 to one driver (qedr). So, here's the -rc patches I have. I
currently have none held in reserve, so unless something new comes in,
this is it until the next merge window opens.
Summary:
- series of iw_cxgb4 fixes to make it work with the drain cq API
- one or two patches each to: srp, iser, cxgb3, vmw_pvrdma, umem,
rxe, and ipoib
- one big series (13 patches) for the new qedr driver"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (27 commits)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
IB/rxe: Prevent from completer to operate on non valid QP
IB/rxe: Fix rxe dev insertion to rxe_dev_list
IB/umem: Release pid in error and ODP flow
RDMA/qedr: Dispatch port active event from qedr_add
RDMA/qedr: Fix and simplify memory leak in PD alloc
RDMA/qedr: Fix RDMA CM loopback
RDMA/qedr: Fix formatting
RDMA/qedr: Mark three functions as static
RDMA/qedr: Don't reset QP when queues aren't flushed
RDMA/qedr: Don't spam dmesg if QP is in error state
RDMA/qedr: Remove CQ spinlock from CM completion handlers
RDMA/qedr: Return max inline data in QP query result
RDMA/qedr: Return success when not changing QP state
RDMA/qedr: Add uapi header qedr-abi.h
RDMA/qedr: Fix MTU returned from QP query
RDMA/core: Add the function ib_mtu_int_to_enum
IB/vmw_pvrdma: Fix incorrect cleanup on pvrdma_pci_probe error path
IB/vmw_pvrdma: Don't leak info from alloc_ucontext
IB/cxgb3: fix misspelling in header guard
...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>Diffstat</a> (limited to 'sound/pci/au88x0/au88x0.c')</div><table summary='diffstat' class='diffstat'>