/*
 * SoC-camera Media Bus API extensions
 *
 * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 *
 * 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.
 */

#ifndef SOC_MEDIABUS_H
#define SOC_MEDIABUS_H

#include <linux/videodev2.h>
#include <linux/v4l2-mediabus.h>

/**
 * enum soc_mbus_packing - data packing types on the media-bus
 * @SOC_MBUS_PACKING_NONE:	no packing, bit-for-bit transfer to RAM, one
 *				sample represents one pixel
 * @SOC_MBUS_PACKING_2X8_PADHI:	16 bits transferred in 2 8-bit samples, in the
 *				possibly incomplete byte high bits are padding
 * @SOC_MBUS_PACKING_2X8_PADLO:	as above, but low bits are padding
 * @SOC_MBUS_PACKING_EXTEND16:	sample width (e.g., 10 bits) has to be extended
 *				to 16 bits
 * @SOC_MBUS_PACKING_VARIABLE:	compressed formats with variable packing
 * @SOC_MBUS_PACKING_1_5X8:	used for packed YUV 4:2:0 formats, where 4
 *				pixels occupy 6 bytes in RAM
 * @SOC_MBUS_PACKING_EXTEND32:	sample width (e.g., 24 bits) has to be extended
 *				to 32 bits
 */
enum soc_mbus_packing {
	SOC_MBUS_PACKING_NONE,
	SOC_MBUS_PACKING_2X8_PADHI,
	SOC_MBUS_PACKING_2X8_PADLO,
	SOC_MBUS_PACKING_EXTEND16,
	SOC_MBUS_PACKING_VARIABLE,
	SOC_MBUS_PACKING_1_5X8,
	SOC_MBUS_PACKING_EXTEND32,
};

/**
 * enum soc_mbus_order - sample order on the media bus
 * @SOC_MBUS_ORDER_LE:		least significant sample first
 * @SOC_MBUS_ORDER_BE:		most significant sample first
 */
enum soc_mbus_order {
	SOC_MBUS_ORDER_LE,
	SOC_MBUS_ORDER_BE,
};

/**
 * enum soc_mbus_layout - planes layout in memory
 * @SOC_MBUS_LAYOUT_PACKED:		color components packed
 * @SOC_MBUS_LAYOUT_PLANAR_2Y_U_V:	YUV components stored in 3 planes (4:2:2)
 * @SOC_MBUS_LAYOUT_PLANAR_2Y_C:	YUV components stored in a luma and a
 *					chroma plane (C plane is half the size
 *					of Y plane)
 * @SOC_MBUS_LAYOUT_PLANAR_Y_C:		YUV components stored in a luma and a
 *					chroma plane (C plane is the same size
 *					as Y plane)
 */
enum soc_mbus_layout {
	SOC_MBUS_LAYOUT_PACKED = 0,
	SOC_MBUS_LAYOUT_PLANAR_2Y_U_V,
	SOC_MBUS_LAYOUT_PLANAR_2Y_C,
	SOC_MBUS_LAYOUT_PLANAR_Y_C,
};

/**
 * struct soc_mbus_pixelfmt - Data format on the media bus
 * @name:		Name of the format
 * @fourcc:		Fourcc code, that will be obtained if the data is
 *			stored in memory in the following way:
 * @packing:		Type of sample-packing, that has to be used
 * @order:		Sample order when storing in memory
 * @bits_per_sample:	How many bits the bridge has to sample
 */
struct soc_mbus_pixelfmt {
	const char		*name;
	u32			fourcc;
	enum soc_mbus_packing	packing;
	enum soc_mbus_order	order;
	enum soc_mbus_layout	layout;
	u8			bits_per_sample;
};

/**
 * struct soc_mbus_lookup - Lookup FOURCC IDs by mediabus codes for pass-through
 * @code:	mediabus pixel-code
 * @fmt:	pixel format description
 */
struct soc_mbus_lookup {
	u32	code;
	struct soc_mbus_pixelfmt	fmt;
};

const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc(
	u32 code,
	const struct soc_mbus_lookup *lookup,
	int n);
const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
	u32 code);
s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);
s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf,
			u32 bytes_per_line, u32 height);
int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf,
			unsigned int *numerator, unsigned int *denominator);
unsigned int soc_mbus_config_compatible(const struct v4l2_mbus_config *cfg,
					unsigned int flags);

#endif
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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-03 13:46:38 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-03 13:46:38 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/chipidea/ci_hdrc_zevio.c?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>3f67790d2b7e322bcf363ec717085dd78c3ea7cd</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/chipidea/ci_hdrc_zevio.c?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>7be20232078a2e801ed93bcdb72f0d955dd9836f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/chipidea/ci_hdrc_zevio.c?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>drivers/usb/chipidea/ci_hdrc_zevio.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/chipidea/ci_hdrc_zevio.c?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>cd44691f7177b2c1e1509d1a17d9b198ebaa34eb</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/chipidea/ci_hdrc_zevio.c?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd&amp;id2=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/chipidea/ci_hdrc_zevio.c?id=206c4720092d2a24bfefc041b377e889a220ffbf'>206c4720092d2a24bfefc041b377e889a220ffbf</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/chipidea/ci_hdrc_zevio.c?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd&amp;id2=206c4720092d2a24bfefc041b377e889a220ffbf'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator</div><div class='commit-msg'>Pull regulator fixes from Mark Brown:
 "Three changes here: two run of the mill driver specific fixes and a
  change from Mark Rutland which reverts some new device specific ACPI
  binding code which was added during the merge window as there are
  concerns about this sending the wrong signal about usage of regulators
  in ACPI systems"

* tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: fixed: Revert support for ACPI interface
  regulator: axp20x: AXP806: Fix dcdcb being set instead of dcdce
  regulator: twl6030: fix range comparison, allowing vsel = 59
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>Diffstat</a> (limited to 'drivers/usb/chipidea/ci_hdrc_zevio.c')</div><table summary='diffstat' class='diffstat'>