/*
 *	linux/drivers/video/bt455.h
 *
 *	Copyright 2003  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
 *	Copyright 2016  Maciej W. Rozycki <macro@linux-mips.org>
 *
 *	This file is subject to the terms and conditions of the GNU General
 *	Public License. See the file COPYING in the main directory of this
 *	archive for more details.
 */
#include <linux/types.h>

/*
 * Bt455 byte-wide registers, 32-bit aligned.
 */
struct bt455_regs {
	volatile u8 addr_cmap;
	u8 pad0[3];
	volatile u8 addr_cmap_data;
	u8 pad1[3];
	volatile u8 addr_clr;
	u8 pad2[3];
	volatile u8 addr_ovly;
	u8 pad3[3];
};

static inline void bt455_select_reg(struct bt455_regs *regs, int ir)
{
	mb();
	regs->addr_cmap = ir & 0x0f;
}

static inline void bt455_reset_reg(struct bt455_regs *regs)
{
	mb();
	regs->addr_clr = 0;
}

/*
 * Read/write to a Bt455 color map register.
 */
static inline void bt455_read_cmap_next(struct bt455_regs *regs, u8 *grey)
{
	mb();
	regs->addr_cmap_data;
	rmb();
	*grey = regs->addr_cmap_data & 0xf;
	rmb();
	regs->addr_cmap_data;
}

static inline void bt455_write_cmap_next(struct bt455_regs *regs, u8 grey)
{
	wmb();
	regs->addr_cmap_data = 0x0;
	wmb();
	regs->addr_cmap_data = grey & 0xf;
	wmb();
	regs->addr_cmap_data = 0x0;
}

static inline void bt455_write_ovly_next(struct bt455_regs *regs, u8 grey)
{
	wmb();
	regs->addr_ovly = 0x0;
	wmb();
	regs->addr_ovly = grey & 0xf;
	wmb();
	regs->addr_ovly = 0x0;
}

static inline void bt455_read_cmap_entry(struct bt455_regs *regs,
					 int cr, u8 *grey)
{
	bt455_select_reg(regs, cr);
	bt455_read_cmap_next(regs, grey);
}

static inline void bt455_write_cmap_entry(struct bt455_regs *regs,
					  int cr, u8 grey)
{
	bt455_select_reg(regs, cr);
	bt455_write_cmap_next(regs, grey);
}

static inline void bt455_write_ovly_entry(struct bt455_regs *regs, u8 grey)
{
	bt455_reset_reg(regs);
	bt455_write_ovly_next(regs, grey);
}
/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/xen/page.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>xen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>page.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><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/include/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>53a20465e6b674eb6ce594b0e9e8940495e95f33</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/xen/page.h?id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>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&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>4d4c29c7c68ab2a1b69e4bd3903949356d2467e8</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/xen/page.h?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>include/xen/page.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/page.h?h=nds-private-remove&amp;id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/xen/page.h?h=nds-private-remove&amp;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/?h=nds-private-remove&amp;id=53a20465e6b674eb6ce594b0e9e8940495e95f33'>Diffstat</a> (limited to 'include/xen/page.h')</div><table summary='diffstat' class='diffstat'>