/*
 * Copyright © 2016 Collabora Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
#ifndef __DRM_DEBUGFS_CRC_H__
#define __DRM_DEBUGFS_CRC_H__

#define DRM_MAX_CRC_NR		10

/**
 * struct drm_crtc_crc_entry - entry describing a frame's content
 * @has_frame_counter: whether the source was able to provide a frame number
 * @frame: number of the frame this CRC is about, if @has_frame_counter is true
 * @crc: array of values that characterize the frame
 */
struct drm_crtc_crc_entry {
	bool has_frame_counter;
	uint32_t frame;
	uint32_t crcs[DRM_MAX_CRC_NR];
};

#define DRM_CRC_ENTRIES_NR	128

/**
 * struct drm_crtc_crc - data supporting CRC capture on a given CRTC
 * @lock: protects the fields in this struct
 * @source: name of the currently configured source of CRCs
 * @opened: whether userspace has opened the data file for reading
 * @entries: array of entries, with size of %DRM_CRC_ENTRIES_NR
 * @head: head of circular queue
 * @tail: tail of circular queue
 * @values_cnt: number of CRC values per entry, up to %DRM_MAX_CRC_NR
 * @wq: workqueue used to synchronize reading and writing
 */
struct drm_crtc_crc {
	spinlock_t lock;
	const char *source;
	bool opened;
	struct drm_crtc_crc_entry *entries;
	int head, tail;
	size_t values_cnt;
	wait_queue_head_t wq;
};

#if defined(CONFIG_DEBUG_FS)
int drm_crtc_add_crc_entry(struct drm_crtc *crtc, bool has_frame,
			   uint32_t frame, uint32_t *crcs);
#else
static inline int drm_crtc_add_crc_entry(struct drm_crtc *crtc, bool has_frame,
					 uint32_t frame, uint32_t *crcs)
{
	return -EINVAL;
}
#endif /* defined(CONFIG_DEBUG_FS) */

#endif /* __DRM_DEBUGFS_CRC_H__ */
<a href='/cgit.cgi/linux/net-next.git/commit/net?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/caif?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>caif</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='53a20465e6b674eb6ce594b0e9e8940495e95f33'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='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>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-11-15 15:01:09 +0000</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-11-15 15:22:10 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/caif?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>53a20465e6b674eb6ce594b0e9e8940495e95f33</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/caif?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>4d4c29c7c68ab2a1b69e4bd3903949356d2467e8</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/caif?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>net/caif</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/caif?id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/caif?id=53a20465e6b674eb6ce594b0e9e8940495e95f33&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: pwm: Add missing quotes to DT example</div><div class='commit-msg'>Reported-by: Peter Rosin &lt;peda@axentia.se&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
Acked-by: Rob Herring &lt;robh@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>Diffstat</a> (limited to 'net/caif')</div><table summary='diffstat' class='diffstat'>